filename
stringlengths
18
19
title
stringlengths
7
950
abstract
stringlengths
105
36k
@id
stringlengths
71
788
sameAs
stringlengths
6
866
text
stringlengths
285
36.2k
3A871684322.jsonld
['Experimental and theoretical investigations of molecular ions by spectroscopy as well as ion mobility and mass spectrometry']
['The aim of this thesis was the elucidation of different ionization methods (resonance-enhanced multiphoton ionization – REMPI, electrospray ionization – ESI, atmospheric pressure chemical ionization – APCI) in ion mobility (IM) spectrometry. In order to gain a better understanding of the ionization processes, several spectroscopic, mass spectrometric and theoretical methods were also used. Another focus was the development of experimental techniques, including a high resolution spectrograph and various combinations of IM and mass spectrometry.The novel high resolution 2D spectrograph facilitates spectroscopic resolutions in the range of commercial echelle spectrographs. The lowest full width at half maximum of a peak achieved was 25 pm. The 2D spectrograph is based on the wavelength separation of light by the combination of a prism and a grating in one dimension, and an etalon in the second dimension. This instrument was successfully employed for the acquisition of Raman and laser-induced breakdown spectra.Different spectroscopic …']
['gnd:1043730419', 'gnd:1117830209', 'gnd:2120681-8', 'gnd:4162305-8', 'gnd:4349293-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871684322']
['Ionenfallen-Massenspektrometrie', 'Riebe, Daniel', 'Universität Potsdam', 'Ionenbeweglichkeit', 'Ionenbeweglichkeitsspektroskopie']
Document ### Title: ['Experimental and theoretical investigations of molecular ions by spectroscopy as well as ion mobility and mass spectrometry'] ### Abstract: ['The aim of this thesis was the elucidation of different ionization methods (resonance-enhanced multiphoton ionization – REMPI, electrospray ionization – ESI, atmospheric pressure chemical ionization – APCI) in ion mobility (IM) spectrometry. In order to gain a better understanding of the ionization processes, several spectroscopic, mass spectrometric and theoretical methods were also used. Another focus was the development of experimental techniques, including a high resolution spectrograph and various combinations of IM and mass spectrometry.The novel high resolution 2D spectrograph facilitates spectroscopic resolutions in the range of commercial echelle spectrographs. The lowest full width at half maximum of a peak achieved was 25 pm. The 2D spectrograph is based on the wavelength separation of light by the combination of a prism and a grating in one dimension, and an etalon in the second dimension. This instrument was successfully employed for the acquisition of Raman and laser-induced breakdown spectra.Different spectroscopic …'] ### GND ID: ['gnd:1043730419', 'gnd:1117830209', 'gnd:2120681-8', 'gnd:4162305-8', 'gnd:4349293-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871684322'] ### GND class: ['Ionenfallen-Massenspektrometrie', 'Riebe, Daniel', 'Universität Potsdam', 'Ionenbeweglichkeit', 'Ionenbeweglichkeitsspektroskopie'] <|eot_id|>
3A871820838.jsonld
['Territorial governance through nature conservation regimes : an analysis of spatial planning traditions and the role of UNESCO Biosphere Reserves']
[['Zusammenfassung: Defined as models for sustainable development, Biosphere Reserves (BR) have been generally accepted as a promising option for backwashing spatially planned interactions for nature conservation and urbanization. As UNESCO designated sites for development, the assumption over their diffusing power into other planning scales and spatial units emerged as a framework in which both planning approaches and their interdependencies were explored. The assumption over the diffusing power of BRs implied that the traditional divide between nature conservation and urban planning would result into a theory of convergence and point towards a series of trade-offs that would temporality consolidate into one planning. It was precisely this convergence and system of trade-offs what interested this research and thus, the objective of this research grounded on “understanding” how and which were the trade-offs between both planning traditions. With the use of two case studies, and a mix of grounded theory and deductive approaches, a self-standing theory on borders’ definition and innovation of territories emerged as a final result. The case study design included Mexico and Guatemala and focused particularly on reviewing the genesis of their administrative and governmental units, their planning traditions and their embedded BR designations (Calakmul BR in Mexico and Maya BR in Guatemala). The results pointed at the concept of identity as the core element for the definition of borders. As a social organization principle, identity showed to be an important conglomerating element for collective processes and organizations. Once the spatial borders of identity were stabilized, the resulting territorial regimes entered into power relations with other organizations and their spatial units. In doing so, organizations saw the need to develop and to specialize their sovereignty conservation strategies. Five different sovereignty conservation strategies emerged. The first strategy is the provision of public services, the second is the certification of ownership, the third and fourth is linked to education and awareness building and finally, the fifth strategy relates to the use of spatial planning for the designation and definition of sub-borders. Results showed that the relationships between BRs and spatial planning laid mainly on how the BR offered the different actors a possibility to innovate their identity and thus their sovereignty strategies through nature c ...', 'Zusammenfassung: Biosphärenreservate (BR) werden als Modelle für nachhaltige Entwicklung definiert und gelten als eine vielversprechende Option für die Integration der raumplanerischen Interaktionen zwischen Naturschutz und Urbanisierungs-Prozessen. UNESCO-BR Stätten, welche für eine nachhaltige Entwicklung vorgesehen sind, schufen den Forschungsrahmen für die vorliegende Arbeit, in der Ausstrahlungseffekte der BR auf andere Planungsebenen und räumliche Einheiten untersucht wurden. Umgekehrt wurde auch analysiert wie traditionelle Planungsansätze Auswirkungen auf die Gestaltung der BR haben. Die Annahme, dass die BR diese Ausstrahlungseffekte haben, impliziert, dass die traditionelle Grenze zwischen Naturschutz und Stadtplanung zu einer Theorie der Konvergenz führen könnte. Diese Konvergenz sowie das in das BR Design eingebaute System der Gegenleistungen war Hauptgegenstand der vorliegenden Studie. Damit zielte diese wissenschaftliche Arbeit auf ein "Verstehen" der möglichen Trade-Offs dieser Planungstraditionen. Zwei Fallstudien und eine Verbindung von gegenstandsbezogener Theoriebildung und deduktiven Ansätzen wurden für die resultierende Theorie verwendet. Das Design der zwei Fallstudien in Mexiko und Guatemala konzentrierten sich vor allem auf die Überprüfung der Genese der administrativen und staatlichen Einheiten, deren Planungstraditionen und der UNESCO BR Ausweisung (Calakmul BR in Mexiko und Maya BR in Guatemala). Die Ergebnisse weisen auf das Konzept der Identität als Kernelement für die Definition von Grenzen hin. Als strukturierendes Prinzip für eine soziale Organisation zeigt sich das Konzept der Identität als ein wichtiges Zusammenhaltsmittel für kollektive Prozesse. Sobald die Grenzen der Identität und damit auch des damit assoziierten Raumes stabilisiert wurden, traten die daraus resultierenden territorialen Regime in verschiedene Machtverhältnisse mit anderen Organisationen und deren Raumeinheiten. Dabei sahen die Organisationen die Notwendigkeit, Souveränitäts- und Erhaltungsstrategien zu entwickeln und zu spezialisieren. Fünf verschiedene Souveränitätsstrategien zur Machterhaltung sind dabei entstanden. Die erste Strategie ist die Bereitstellung der Daseinsvorsorge, die Zweite ist die Zertifizierung des Eigentum, die Dritte und die Vierte beziehen sich auf Bildung und Bewusstseinsbildung, und schließlich bezieht sich die fünfte Strategie auf die Verwendung der Raumplanung für di ...']]
['gnd:1096211459', 'gnd:2023755-8', 'gnd:4041414-0', 'gnd:4048590-0', 'gnd:4115348-0', 'gnd:4428082-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871820838']
['Gaudry Sada, Karl Heinz', 'UNESCO', 'Naturschutzgebiet', 'Raumordnung', 'Naturschutz', 'Biosphärenreservat']
Document ### Title: ['Territorial governance through nature conservation regimes : an analysis of spatial planning traditions and the role of UNESCO Biosphere Reserves'] ### Abstract: [['Zusammenfassung: Defined as models for sustainable development, Biosphere Reserves (BR) have been generally accepted as a promising option for backwashing spatially planned interactions for nature conservation and urbanization. As UNESCO designated sites for development, the assumption over their diffusing power into other planning scales and spatial units emerged as a framework in which both planning approaches and their interdependencies were explored. The assumption over the diffusing power of BRs implied that the traditional divide between nature conservation and urban planning would result into a theory of convergence and point towards a series of trade-offs that would temporality consolidate into one planning. It was precisely this convergence and system of trade-offs what interested this research and thus, the objective of this research grounded on “understanding” how and which were the trade-offs between both planning traditions. With the use of two case studies, and a mix of grounded theory and deductive approaches, a self-standing theory on borders’ definition and innovation of territories emerged as a final result. The case study design included Mexico and Guatemala and focused particularly on reviewing the genesis of their administrative and governmental units, their planning traditions and their embedded BR designations (Calakmul BR in Mexico and Maya BR in Guatemala). The results pointed at the concept of identity as the core element for the definition of borders. As a social organization principle, identity showed to be an important conglomerating element for collective processes and organizations. Once the spatial borders of identity were stabilized, the resulting territorial regimes entered into power relations with other organizations and their spatial units. In doing so, organizations saw the need to develop and to specialize their sovereignty conservation strategies. Five different sovereignty conservation strategies emerged. The first strategy is the provision of public services, the second is the certification of ownership, the third and fourth is linked to education and awareness building and finally, the fifth strategy relates to the use of spatial planning for the designation and definition of sub-borders. Results showed that the relationships between BRs and spatial planning laid mainly on how the BR offered the different actors a possibility to innovate their identity and thus their sovereignty strategies through nature c ...', 'Zusammenfassung: Biosphärenreservate (BR) werden als Modelle für nachhaltige Entwicklung definiert und gelten als eine vielversprechende Option für die Integration der raumplanerischen Interaktionen zwischen Naturschutz und Urbanisierungs-Prozessen. UNESCO-BR Stätten, welche für eine nachhaltige Entwicklung vorgesehen sind, schufen den Forschungsrahmen für die vorliegende Arbeit, in der Ausstrahlungseffekte der BR auf andere Planungsebenen und räumliche Einheiten untersucht wurden. Umgekehrt wurde auch analysiert wie traditionelle Planungsansätze Auswirkungen auf die Gestaltung der BR haben. Die Annahme, dass die BR diese Ausstrahlungseffekte haben, impliziert, dass die traditionelle Grenze zwischen Naturschutz und Stadtplanung zu einer Theorie der Konvergenz führen könnte. Diese Konvergenz sowie das in das BR Design eingebaute System der Gegenleistungen war Hauptgegenstand der vorliegenden Studie. Damit zielte diese wissenschaftliche Arbeit auf ein "Verstehen" der möglichen Trade-Offs dieser Planungstraditionen. Zwei Fallstudien und eine Verbindung von gegenstandsbezogener Theoriebildung und deduktiven Ansätzen wurden für die resultierende Theorie verwendet. Das Design der zwei Fallstudien in Mexiko und Guatemala konzentrierten sich vor allem auf die Überprüfung der Genese der administrativen und staatlichen Einheiten, deren Planungstraditionen und der UNESCO BR Ausweisung (Calakmul BR in Mexiko und Maya BR in Guatemala). Die Ergebnisse weisen auf das Konzept der Identität als Kernelement für die Definition von Grenzen hin. Als strukturierendes Prinzip für eine soziale Organisation zeigt sich das Konzept der Identität als ein wichtiges Zusammenhaltsmittel für kollektive Prozesse. Sobald die Grenzen der Identität und damit auch des damit assoziierten Raumes stabilisiert wurden, traten die daraus resultierenden territorialen Regime in verschiedene Machtverhältnisse mit anderen Organisationen und deren Raumeinheiten. Dabei sahen die Organisationen die Notwendigkeit, Souveränitäts- und Erhaltungsstrategien zu entwickeln und zu spezialisieren. Fünf verschiedene Souveränitätsstrategien zur Machterhaltung sind dabei entstanden. Die erste Strategie ist die Bereitstellung der Daseinsvorsorge, die Zweite ist die Zertifizierung des Eigentum, die Dritte und die Vierte beziehen sich auf Bildung und Bewusstseinsbildung, und schließlich bezieht sich die fünfte Strategie auf die Verwendung der Raumplanung für di ...']] ### GND ID: ['gnd:1096211459', 'gnd:2023755-8', 'gnd:4041414-0', 'gnd:4048590-0', 'gnd:4115348-0', 'gnd:4428082-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871820838'] ### GND class: ['Gaudry Sada, Karl Heinz', 'UNESCO', 'Naturschutzgebiet', 'Raumordnung', 'Naturschutz', 'Biosphärenreservat'] <|eot_id|>
3A87194345X.jsonld
['Bioremediation for heavy metal contaminated brownfields']
['The development of eco-friendly technologies for soil decontamination is of considerable importance in the achievement of environmental pollution control. Specifically, brownfields contaminated with heavy metals are causing concern, because the biogeochemical behavior of metals is influenced by the soil characteristics of the polluted sites. Ectomycorrhizal (ECM) symbiosis of metal resistant organisms can represent a beneficial association for the improvement of soil quality in order to re-establish vegetation in brownfields. Pine (Pinus sylvestris) growth in the presence of the ECM fungi Paxillus involutus and Pisolithus tinctorius was tested in regard to exposure at different heavy metal concentrations. Mycorrhized pine seedlings have been investigated as a bioremediation system by assessing metal uptake and distribution within plant tissues. Electron microscopy revealed metal accumulation on the surface of the colonized root, inside the root and inside the needle crown. The formation of biominerals was investigated by electron diffraction, and identified pyromorphite within plant tissue. The biominerals were extracellularly embedded in the plant cell wall with indications for mineralization during cell wall growth. Biomineralization potential was discussed in terms or bioreduction, biosorption and bioaccumulation processes that might have been involved by the investigated organisms. Since the bioremediation system proved its efficiency, the ecological implications of ECM associations have been highlighted for afforestation strategies of metal polluted sites.']
['gnd:1115656953', 'gnd:1145592481', 'gnd:143604783', 'gnd:36164-1', 'gnd:4014873-7', 'gnd:4053964-7', 'gnd:4137352-2', 'gnd:4145884-9', 'gnd:4151671-0', 'gnd:5058130-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87194345X']
['Bizo, Maria Lucia', 'Büchel, Georg', 'Kothe, Erika', 'Friedrich-Schiller-Universität Jena', 'Entgiftung', 'Schwermetallbelastung', 'Bodensanierung', 'Bleibelastung', 'Ektotrophe Mykorrhiza', 'Universitatea Babeş-Bolyai']
Document ### Title: ['Bioremediation for heavy metal contaminated brownfields'] ### Abstract: ['The development of eco-friendly technologies for soil decontamination is of considerable importance in the achievement of environmental pollution control. Specifically, brownfields contaminated with heavy metals are causing concern, because the biogeochemical behavior of metals is influenced by the soil characteristics of the polluted sites. Ectomycorrhizal (ECM) symbiosis of metal resistant organisms can represent a beneficial association for the improvement of soil quality in order to re-establish vegetation in brownfields. Pine (Pinus sylvestris) growth in the presence of the ECM fungi Paxillus involutus and Pisolithus tinctorius was tested in regard to exposure at different heavy metal concentrations. Mycorrhized pine seedlings have been investigated as a bioremediation system by assessing metal uptake and distribution within plant tissues. Electron microscopy revealed metal accumulation on the surface of the colonized root, inside the root and inside the needle crown. The formation of biominerals was investigated by electron diffraction, and identified pyromorphite within plant tissue. The biominerals were extracellularly embedded in the plant cell wall with indications for mineralization during cell wall growth. Biomineralization potential was discussed in terms or bioreduction, biosorption and bioaccumulation processes that might have been involved by the investigated organisms. Since the bioremediation system proved its efficiency, the ecological implications of ECM associations have been highlighted for afforestation strategies of metal polluted sites.'] ### GND ID: ['gnd:1115656953', 'gnd:1145592481', 'gnd:143604783', 'gnd:36164-1', 'gnd:4014873-7', 'gnd:4053964-7', 'gnd:4137352-2', 'gnd:4145884-9', 'gnd:4151671-0', 'gnd:5058130-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87194345X'] ### GND class: ['Bizo, Maria Lucia', 'Büchel, Georg', 'Kothe, Erika', 'Friedrich-Schiller-Universität Jena', 'Entgiftung', 'Schwermetallbelastung', 'Bodensanierung', 'Bleibelastung', 'Ektotrophe Mykorrhiza', 'Universitatea Babeş-Bolyai'] <|eot_id|>
3A871994003.jsonld
['Novel microfluidic systems for raman spectroscopy based antibiotic susceptibility tests']
['In the present work powerful microfluidic-based approaches for clinical-spectroscopic diagnostics of bacteria were developed. With special attention paid to urinary tract infections microfluidic systems were designed and realized that enable Raman spectroscopic identification of bacteria and their antibiotic resistance directly from patients’ material. The background was to provide innovative faster and yet sensitive and specific alternatives to the standard microbiological practice. A combined dielectrophoresis Raman setup was established. It took only 35 minutes to successfully distinguish the two typical pathogens of urinary tract infections from patients’ urine samples, Escherichia coli and Enterococcus faecalis. A centrifugal microfluidic platform was manufactured. Within 1.5 hours the important characteristics of Escherichia coli and Enterococcus faecalis recovered from the urinary tract of patients were acquired. The issue of polymicrobial infections was addressed. A non-linear hybrid statistical approach based on Partial Least Squares regression in combination with Maximum-Likelihood Parameter estimation methods led to accurate predictions of various mixing ratios of bacteria. The applicability of the dielectrophoresis-Raman setup as a measurement platform for antibiotic susceptibility tests was verified. With the development of an advanced statistical model based on Partial Least Squares Regression and Linear Discriminant Analysis, vancomycin resistant enterococci could be highly sensitively and specifically diagnosed within 1.5 hours. The technology was integrated into a closed microfluidic system. The functionality of the microfluidic system was successfully demonstrated by the determination of fluoroquinolone-resistances in Escherichia coli. It could also be shown that the Raman data of the quadrupole chips were compatible with those of the microfluidic system and hence, the method was shown to be highly robust.']
['gnd:1115819364', 'gnd:36164-1', 'gnd:4023498-8', 'gnd:4113303-1', 'gnd:4176916-8', 'gnd:4803438-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871994003']
['Schröder, Ulrich-Christian', 'Friedrich-Schiller-Universität Jena', 'Harnwegsinfektion', 'Diagnostik', 'Raman-Spektroskopie', 'Mikrofluidik']
Document ### Title: ['Novel microfluidic systems for raman spectroscopy based antibiotic susceptibility tests'] ### Abstract: ['In the present work powerful microfluidic-based approaches for clinical-spectroscopic diagnostics of bacteria were developed. With special attention paid to urinary tract infections microfluidic systems were designed and realized that enable Raman spectroscopic identification of bacteria and their antibiotic resistance directly from patients’ material. The background was to provide innovative faster and yet sensitive and specific alternatives to the standard microbiological practice. A combined dielectrophoresis Raman setup was established. It took only 35 minutes to successfully distinguish the two typical pathogens of urinary tract infections from patients’ urine samples, Escherichia coli and Enterococcus faecalis. A centrifugal microfluidic platform was manufactured. Within 1.5 hours the important characteristics of Escherichia coli and Enterococcus faecalis recovered from the urinary tract of patients were acquired. The issue of polymicrobial infections was addressed. A non-linear hybrid statistical approach based on Partial Least Squares regression in combination with Maximum-Likelihood Parameter estimation methods led to accurate predictions of various mixing ratios of bacteria. The applicability of the dielectrophoresis-Raman setup as a measurement platform for antibiotic susceptibility tests was verified. With the development of an advanced statistical model based on Partial Least Squares Regression and Linear Discriminant Analysis, vancomycin resistant enterococci could be highly sensitively and specifically diagnosed within 1.5 hours. The technology was integrated into a closed microfluidic system. The functionality of the microfluidic system was successfully demonstrated by the determination of fluoroquinolone-resistances in Escherichia coli. It could also be shown that the Raman data of the quadrupole chips were compatible with those of the microfluidic system and hence, the method was shown to be highly robust.'] ### GND ID: ['gnd:1115819364', 'gnd:36164-1', 'gnd:4023498-8', 'gnd:4113303-1', 'gnd:4176916-8', 'gnd:4803438-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A871994003'] ### GND class: ['Schröder, Ulrich-Christian', 'Friedrich-Schiller-Universität Jena', 'Harnwegsinfektion', 'Diagnostik', 'Raman-Spektroskopie', 'Mikrofluidik'] <|eot_id|>
3A872239047.jsonld
['Earthquake-induced landsliding : earthquakes as erosional agents across timescales']
["Earthquakes deform Earth's surface, building long-lasting topographic features and contributing to landscape and mountain formation.However, seismic waves produced by earthquakes may also destabilize hillslopes, leading to large amounts of soil and bedrock moving downslope. Moreover, static deformation and shaking are suspected to damage the surface bedrock and therefore alter its future properties, affecting hydrological and erosional dynamics. Thus, earthquakes participate both in mountain building and stimulate directly or indirectly their erosion. Moreover, the impact of earthquakes on hillslopes has important implications for the amount of sediment and organic matter delivered to rivers, and ultimately to oceans, during episodic catastrophic seismic crises, the magnitude of life and property losses associated with landsliding, the perturbation and recovery of landscape properties after shaking, and the long term topographic evolution of mountain belts. Several of these aspects have been addressed recently through individual cas…"]
['gnd:1118754700', 'gnd:2120681-8', 'gnd:4015134-7', 'gnd:4126903-2', 'gnd:4169027-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872239047']
['Marc, Odin', 'Universität Potsdam', 'Erdbeben', 'Geomechanik', 'Massenbewegung (Geomorphologie)']
Document ### Title: ['Earthquake-induced landsliding : earthquakes as erosional agents across timescales'] ### Abstract: ["Earthquakes deform Earth's surface, building long-lasting topographic features and contributing to landscape and mountain formation.However, seismic waves produced by earthquakes may also destabilize hillslopes, leading to large amounts of soil and bedrock moving downslope. Moreover, static deformation and shaking are suspected to damage the surface bedrock and therefore alter its future properties, affecting hydrological and erosional dynamics. Thus, earthquakes participate both in mountain building and stimulate directly or indirectly their erosion. Moreover, the impact of earthquakes on hillslopes has important implications for the amount of sediment and organic matter delivered to rivers, and ultimately to oceans, during episodic catastrophic seismic crises, the magnitude of life and property losses associated with landsliding, the perturbation and recovery of landscape properties after shaking, and the long term topographic evolution of mountain belts. Several of these aspects have been addressed recently through individual cas…"] ### GND ID: ['gnd:1118754700', 'gnd:2120681-8', 'gnd:4015134-7', 'gnd:4126903-2', 'gnd:4169027-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872239047'] ### GND class: ['Marc, Odin', 'Universität Potsdam', 'Erdbeben', 'Geomechanik', 'Massenbewegung (Geomorphologie)'] <|eot_id|>
3A87262272X.jsonld
['Entwicklung und Nutzung von Tageslicht- Pflanzenküvetten als Untersuchungseinheit eines systemorientierten Ansatzes für Niedrigenergiegewächshäuser']
['Tageslicht- Pflanzenküvette, Klimaparameter, Netto-Photosynthese, Respiration, Transpiration, Pelargonium zonale. - Daylight-plant-cuvette, climate parameters, net photosynthesis']
['gnd:4467936-1', 'gnd:4565628-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87262272X']
['Niedrigenergiehaus', 'Gewächshausklima', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Entwicklung und Nutzung von Tageslicht- Pflanzenküvetten als Untersuchungseinheit eines systemorientierten Ansatzes für Niedrigenergiegewächshäuser'] ### Abstract: ['Tageslicht- Pflanzenküvette, Klimaparameter, Netto-Photosynthese, Respiration, Transpiration, Pelargonium zonale. - Daylight-plant-cuvette, climate parameters, net photosynthesis'] ### GND ID: ['gnd:4467936-1', 'gnd:4565628-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87262272X'] ### GND class: ['Niedrigenergiehaus', 'Gewächshausklima', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A872702448.jsonld
['Untersuchung der Diffusion von Lithium- und Natrium-Ionen in Festkörpern unter Berücksichtigung der Dimensionalität des Kristallgitters']
['Li-Diffusion, Na-Diffusion, Dimensionalität, Festkörper-NMR-Spektroskopie, Impedanzspektroskopie. - Dimensionality, solid-state NMR spectroscopy, impedance spectroscopy']
['gnd:4012277-3', 'gnd:4161400-8', 'gnd:4184773-8', 'gnd:4185549-8', 'gnd:4249439-4', 'gnd:4253377-6', 'gnd:4318210-0', 'gnd:4322206-7', 'gnd:4365574-9', 'gnd:4713583-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872702448']
['Diffusion', 'Impedanzspektroskopie', 'Ternäre Verbindungen', 'Titandioxid', 'Niederdimensionaler Leiter', 'Niobsulfide', 'Natriumoxid', 'Lithiumverbindungen', 'Lithiumoxid', 'Festkörper-NMR-Spektroskopie', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Untersuchung der Diffusion von Lithium- und Natrium-Ionen in Festkörpern unter Berücksichtigung der Dimensionalität des Kristallgitters'] ### Abstract: ['Li-Diffusion, Na-Diffusion, Dimensionalität, Festkörper-NMR-Spektroskopie, Impedanzspektroskopie. - Dimensionality, solid-state NMR spectroscopy, impedance spectroscopy'] ### GND ID: ['gnd:4012277-3', 'gnd:4161400-8', 'gnd:4184773-8', 'gnd:4185549-8', 'gnd:4249439-4', 'gnd:4253377-6', 'gnd:4318210-0', 'gnd:4322206-7', 'gnd:4365574-9', 'gnd:4713583-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872702448'] ### GND class: ['Diffusion', 'Impedanzspektroskopie', 'Ternäre Verbindungen', 'Titandioxid', 'Niederdimensionaler Leiter', 'Niobsulfide', 'Natriumoxid', 'Lithiumverbindungen', 'Lithiumoxid', 'Festkörper-NMR-Spektroskopie', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A872705064.jsonld
['Improved local polynomial estimation in nonparametric time series regression']
['We propose a modification of local polynomial time series fitting which improves the efficiency of the conventional method when the observation error is strongly mixing. This generalizes the work of Xiao et. al. in 2003, who considered an error process with an invertible linear representation. Here, we do not suppose a certain functional structure on the random observation error. Furthermore, we allow for heteroscedasticity. The procedure is based on a pre-whitening transformation of the data. The dependent variable as well as the unknown variance function are estimated via preliminary local polynomial regression. Establishing its asymptotic distribution, we show that the proposed estimator is more efficient than the conventional one. In a simulation study, the performance of our estimator on finite samples is investigated.']
['gnd:111935062X', 'gnd:36164-1', 'gnd:4228085-0', 'gnd:4431358-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872705064']
['Geller, Juliane', 'Friedrich-Schiller-Universität Jena', 'Fehlerabschätzung', 'Schätzfunktion']
Document ### Title: ['Improved local polynomial estimation in nonparametric time series regression'] ### Abstract: ['We propose a modification of local polynomial time series fitting which improves the efficiency of the conventional method when the observation error is strongly mixing. This generalizes the work of Xiao et. al. in 2003, who considered an error process with an invertible linear representation. Here, we do not suppose a certain functional structure on the random observation error. Furthermore, we allow for heteroscedasticity. The procedure is based on a pre-whitening transformation of the data. The dependent variable as well as the unknown variance function are estimated via preliminary local polynomial regression. Establishing its asymptotic distribution, we show that the proposed estimator is more efficient than the conventional one. In a simulation study, the performance of our estimator on finite samples is investigated.'] ### GND ID: ['gnd:111935062X', 'gnd:36164-1', 'gnd:4228085-0', 'gnd:4431358-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872705064'] ### GND class: ['Geller, Juliane', 'Friedrich-Schiller-Universität Jena', 'Fehlerabschätzung', 'Schätzfunktion'] <|eot_id|>
3A872707903.jsonld
['Semiconductor nanowire based coherent light sources : temporal dynamics and tunability']
['Semiconductor nanowires (NWs) offer exceptional optical properties such as efficient waveguiding of light despite their subwavelength diameter. These properties are strongly related to the semiconductor material and their morphology. Additionally, semiconductor NWs inherently offer all basic components of a laser system including robust, high optical gain and a beneficial Fabry-Pérot resonator structure. Thus, they are considered as one of the smallest coherent light sources available for different visionary concepts in recent research on nanophotonics, nanosensing and nanspectroscopy. Laser oscillations in single NWs have only been achieved in a pulsed operation mode so far, as the off times between the optical pump pulses allows the thermal budget introduced by the optical pumping to dissipate in order to avoid a successive material degradation. In order to establish the continuous wave (cw) emission mode in single NWs, a semiconductor material of exceptional high optical gain and an excellent NW resonator morphology is required. Both challenges can be accomplished by using CdS NWs synthesized by the vapor-liquid-solid (VLS) mechanism using Sn as catalyst. Knowing the fundamental laser dynamics of semiconductor NWs will enable the exploitation of their full potential as nanoscaled coherent light sources. The respective time scales for laser onset time and pulse width are in the range of few hundred femtoseconds up to few picoseconds and can be measured by a novel ‘double-pump’ technique. In addition, both characteristic times can be adjusted by a proper choice of semiconductor material, pump energy and optical configuration. The field distribution within a NW laser can be adjusted between single and multi-transverse mode operation by varying the NW diameter. Thin NWs below the critical diameter for multimode waveguiding emit laser emission of the fundamental mode, whereas NWs with larger diameters clearly show multimode operation. Furthermore, the transverse mode structure strongly affects the light-matter interaction and the NW laser dynamics.']
['gnd:111935868X', 'gnd:36164-1', 'gnd:4034610-9', 'gnd:4147108-8', 'gnd:4158814-9', 'gnd:4190864-8', 'gnd:4707308-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872707903']
['Röder, Robert', 'Friedrich-Schiller-Universität Jena', 'Laser', 'Cadmiumsulfid', 'Halbleitertechnologie', 'Zinkoxid', 'Nanodraht']
Document ### Title: ['Semiconductor nanowire based coherent light sources : temporal dynamics and tunability'] ### Abstract: ['Semiconductor nanowires (NWs) offer exceptional optical properties such as efficient waveguiding of light despite their subwavelength diameter. These properties are strongly related to the semiconductor material and their morphology. Additionally, semiconductor NWs inherently offer all basic components of a laser system including robust, high optical gain and a beneficial Fabry-Pérot resonator structure. Thus, they are considered as one of the smallest coherent light sources available for different visionary concepts in recent research on nanophotonics, nanosensing and nanspectroscopy. Laser oscillations in single NWs have only been achieved in a pulsed operation mode so far, as the off times between the optical pump pulses allows the thermal budget introduced by the optical pumping to dissipate in order to avoid a successive material degradation. In order to establish the continuous wave (cw) emission mode in single NWs, a semiconductor material of exceptional high optical gain and an excellent NW resonator morphology is required. Both challenges can be accomplished by using CdS NWs synthesized by the vapor-liquid-solid (VLS) mechanism using Sn as catalyst. Knowing the fundamental laser dynamics of semiconductor NWs will enable the exploitation of their full potential as nanoscaled coherent light sources. The respective time scales for laser onset time and pulse width are in the range of few hundred femtoseconds up to few picoseconds and can be measured by a novel ‘double-pump’ technique. In addition, both characteristic times can be adjusted by a proper choice of semiconductor material, pump energy and optical configuration. The field distribution within a NW laser can be adjusted between single and multi-transverse mode operation by varying the NW diameter. Thin NWs below the critical diameter for multimode waveguiding emit laser emission of the fundamental mode, whereas NWs with larger diameters clearly show multimode operation. Furthermore, the transverse mode structure strongly affects the light-matter interaction and the NW laser dynamics.'] ### GND ID: ['gnd:111935868X', 'gnd:36164-1', 'gnd:4034610-9', 'gnd:4147108-8', 'gnd:4158814-9', 'gnd:4190864-8', 'gnd:4707308-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872707903'] ### GND class: ['Röder, Robert', 'Friedrich-Schiller-Universität Jena', 'Laser', 'Cadmiumsulfid', 'Halbleitertechnologie', 'Zinkoxid', 'Nanodraht'] <|eot_id|>
3A872712354.jsonld
['Evaluierung der Mittel- und Nahinfrarotspektroskopie zur online Überwachung von CHO-Kultivierungen']
['Nahinfrarotspektroskopie, Mittelinfrarotspektroskopie, CHO-Zellen, Kultivierung, Permutationsanalyse, PAT, Chemometrie. - Near infrared spectroscopy, mid infrared spectroscopy, CHO cell cultivation, permutation analysis, chemometrics']
['gnd:1069292419', 'gnd:112803741', 'gnd:4135411-4', 'gnd:4307166-1', 'gnd:4835248-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872712354']
['Scheper, Thomas', 'Hitzmann, Bernd', 'Infrarotspektroskopie', 'Bioverfahrenstechnik', 'CHO-Zelle', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Evaluierung der Mittel- und Nahinfrarotspektroskopie zur online Überwachung von CHO-Kultivierungen'] ### Abstract: ['Nahinfrarotspektroskopie, Mittelinfrarotspektroskopie, CHO-Zellen, Kultivierung, Permutationsanalyse, PAT, Chemometrie. - Near infrared spectroscopy, mid infrared spectroscopy, CHO cell cultivation, permutation analysis, chemometrics'] ### GND ID: ['gnd:1069292419', 'gnd:112803741', 'gnd:4135411-4', 'gnd:4307166-1', 'gnd:4835248-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872712354'] ### GND class: ['Scheper, Thomas', 'Hitzmann, Bernd', 'Infrarotspektroskopie', 'Bioverfahrenstechnik', 'CHO-Zelle', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A872761681.jsonld
['Alter in Verantwortung? : politisches Engagement im Ruhestand']
[["Social activism in old age: in light of the generation of '68 reaching retirement age, the question of the forms of political engagement in retirement are being raised anew.", 'In Zeiten von demografischem Wandel und sozialstaatlichem Umbau sind auch die Senior_innen aufgefordert, mehr gesellschaftliche Verantwortung zu übernehmen. Politik und Wissenschaft interessieren sich zunehmend für die produktiven Potentiale des Alters, die in Form von bürgerschaftlichem Engagement nutzbar gemacht werden sollen. Aus dem Blick geraten dabei allerdings häufig politische und gestaltungsorientierte Tätigkeiten, die eine besondere Form der gesellschaftlichen Verantwortungsübernahme darstellen. Sven Schwabe zeigt: Gerade angesichts des Renteneintritts der 68er-Generation stellt sich die Frage nach Formen des politischen Engagements im Ruhestand neu.']]
['gnd:1119175046', 'gnd:36152-5', 'gnd:4001446-0', 'gnd:4011882-4', 'gnd:4012475-7', 'gnd:4076232-4', 'gnd:7668631-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872761681']
['Schwabe, Sven', 'Heinrich-Heine-Universität Düsseldorf', 'Alter', 'Deutschland', 'Diskurs', 'Politisches Engagement', 'Zivilgesellschaft']
Document ### Title: ['Alter in Verantwortung? : politisches Engagement im Ruhestand'] ### Abstract: [["Social activism in old age: in light of the generation of '68 reaching retirement age, the question of the forms of political engagement in retirement are being raised anew.", 'In Zeiten von demografischem Wandel und sozialstaatlichem Umbau sind auch die Senior_innen aufgefordert, mehr gesellschaftliche Verantwortung zu übernehmen. Politik und Wissenschaft interessieren sich zunehmend für die produktiven Potentiale des Alters, die in Form von bürgerschaftlichem Engagement nutzbar gemacht werden sollen. Aus dem Blick geraten dabei allerdings häufig politische und gestaltungsorientierte Tätigkeiten, die eine besondere Form der gesellschaftlichen Verantwortungsübernahme darstellen. Sven Schwabe zeigt: Gerade angesichts des Renteneintritts der 68er-Generation stellt sich die Frage nach Formen des politischen Engagements im Ruhestand neu.']] ### GND ID: ['gnd:1119175046', 'gnd:36152-5', 'gnd:4001446-0', 'gnd:4011882-4', 'gnd:4012475-7', 'gnd:4076232-4', 'gnd:7668631-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872761681'] ### GND class: ['Schwabe, Sven', 'Heinrich-Heine-Universität Düsseldorf', 'Alter', 'Deutschland', 'Diskurs', 'Politisches Engagement', 'Zivilgesellschaft'] <|eot_id|>
3A872817547.jsonld
['Investigation and development of dual-phase oxygen-transporting membranes for oxygen production and chemical reactors']
['Oxygen transport, dual-phase materials, CO2 tolerance, membrane reactors. - Sauerstofftransport, zweiphasige Materialien, CO2-Toleranz, Membranreaktoren']
['gnd:120131714', 'gnd:4179219-1', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872817547']
['Feldhoff, Armin', 'Sauerstofftransport', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Investigation and development of dual-phase oxygen-transporting membranes for oxygen production and chemical reactors'] ### Abstract: ['Oxygen transport, dual-phase materials, CO2 tolerance, membrane reactors. - Sauerstofftransport, zweiphasige Materialien, CO2-Toleranz, Membranreaktoren'] ### GND ID: ['gnd:120131714', 'gnd:4179219-1', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872817547'] ### GND class: ['Feldhoff, Armin', 'Sauerstofftransport', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A872918564.jsonld
['Dense stellar systems and massive black holes : sources of gravitational radiation and tidal disruptions']
['Gravity dictates the structure of the whole Universe and, although it is triumphantly described by the theory of General Relativity, it is the force that we least understand in nature. One of the cardinal predictions of this theory are black holes. Massive, dark objects are found in the majority of galaxies. Our own galactic center very contains such an object with a mass of about four million solar masses. Are these objects supermassive black holes (SMBHs), or do we need alternatives? The answer lies in the event horizon, the characteristic that defines a black hole. The key to probe the horizon is to model the movement of stars around a SMBH, and the interactions between them, and look for deviations from real observations. Nuclear star clusters harboring a massive, dark object with a mass of up to ~ ten million solar masses are good testbeds to probe the event horizon of the potential SMBH with stars. The channel for interactions between stars and the central MBH are the fact that (a) compact stars and stellar-mass black holes can gradually inspiral into the SMBH due to the emission of gravitational radiation, which is known as an “Extreme Mass Ratio Inspiral” (EMRI), and (b) stars can produce gases which will be accreted by the SMBH through normal stellar evolution, or by collisions and disruptions brought about by the strong central tidal field. Such processes can contribute significantly to the mass of the SMBH. These two processes involve different disciplines, which combined will provide us with detailed information about the fabric of space and time. In this habilitation I present nine articles of my recent work directly related with these topics.']
['gnd:1114080772', 'gnd:2120681-8', 'gnd:4053793-6', 'gnd:4150454-9', 'gnd:4158119-2', 'gnd:4169052-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872918564']
['Amaro-Seoane, Pau', 'Universität Potsdam', 'Schwarzes Loch', 'Doppelstern', 'Gravitationswelle', 'Massereicher Stern']
Document ### Title: ['Dense stellar systems and massive black holes : sources of gravitational radiation and tidal disruptions'] ### Abstract: ['Gravity dictates the structure of the whole Universe and, although it is triumphantly described by the theory of General Relativity, it is the force that we least understand in nature. One of the cardinal predictions of this theory are black holes. Massive, dark objects are found in the majority of galaxies. Our own galactic center very contains such an object with a mass of about four million solar masses. Are these objects supermassive black holes (SMBHs), or do we need alternatives? The answer lies in the event horizon, the characteristic that defines a black hole. The key to probe the horizon is to model the movement of stars around a SMBH, and the interactions between them, and look for deviations from real observations. Nuclear star clusters harboring a massive, dark object with a mass of up to ~ ten million solar masses are good testbeds to probe the event horizon of the potential SMBH with stars. The channel for interactions between stars and the central MBH are the fact that (a) compact stars and stellar-mass black holes can gradually inspiral into the SMBH due to the emission of gravitational radiation, which is known as an “Extreme Mass Ratio Inspiral” (EMRI), and (b) stars can produce gases which will be accreted by the SMBH through normal stellar evolution, or by collisions and disruptions brought about by the strong central tidal field. Such processes can contribute significantly to the mass of the SMBH. These two processes involve different disciplines, which combined will provide us with detailed information about the fabric of space and time. In this habilitation I present nine articles of my recent work directly related with these topics.'] ### GND ID: ['gnd:1114080772', 'gnd:2120681-8', 'gnd:4053793-6', 'gnd:4150454-9', 'gnd:4158119-2', 'gnd:4169052-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A872918564'] ### GND class: ['Amaro-Seoane, Pau', 'Universität Potsdam', 'Schwarzes Loch', 'Doppelstern', 'Gravitationswelle', 'Massereicher Stern'] <|eot_id|>
3A87292145X.jsonld
['The development of aggression in middle childhood : longitudinal analyses of the role of anger regulation, social rejection, and peer socialization']
['Background: The engagement in aggressive behavior in middle childhood is linked to the development of severe problems in later life. Thus, identifying factors and processes that con-tribute to the continuity and increase of aggression in middle childhood is essential in order to facilitate the development of intervention programs. The present PhD thesis aimed at expand-ing the understanding of the development of aggression in middle childhood by examining risk factors in the intrapersonal and interpersonal domains as well as the interplay between these factors: Maladaptive anger regulation was examined as an intrapersonal risk factor; processes that occur in the peer context (social rejection and peer socialization) were included as interpersonal risk factors. In addition, in order to facilitate the in situ assessment of anger regulation strategies, an observational measure of anger regulation was developed and validated. Method: The research aims were addressed within the scope of four articles. Data from two measurement time point…']
['gnd:1119832993', 'gnd:123950406', 'gnd:4000732-7', 'gnd:4014963-8', 'gnd:4028859-6', 'gnd:4511937-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87292145X']
['Rohlf, Helena', 'Krahé, Barbara', 'Aggression', 'Entwicklungspsychologie', 'Jugend', 'Online-Ressource']
Document ### Title: ['The development of aggression in middle childhood : longitudinal analyses of the role of anger regulation, social rejection, and peer socialization'] ### Abstract: ['Background: The engagement in aggressive behavior in middle childhood is linked to the development of severe problems in later life. Thus, identifying factors and processes that con-tribute to the continuity and increase of aggression in middle childhood is essential in order to facilitate the development of intervention programs. The present PhD thesis aimed at expand-ing the understanding of the development of aggression in middle childhood by examining risk factors in the intrapersonal and interpersonal domains as well as the interplay between these factors: Maladaptive anger regulation was examined as an intrapersonal risk factor; processes that occur in the peer context (social rejection and peer socialization) were included as interpersonal risk factors. In addition, in order to facilitate the in situ assessment of anger regulation strategies, an observational measure of anger regulation was developed and validated. Method: The research aims were addressed within the scope of four articles. Data from two measurement time point…'] ### GND ID: ['gnd:1119832993', 'gnd:123950406', 'gnd:4000732-7', 'gnd:4014963-8', 'gnd:4028859-6', 'gnd:4511937-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87292145X'] ### GND class: ['Rohlf, Helena', 'Krahé, Barbara', 'Aggression', 'Entwicklungspsychologie', 'Jugend', 'Online-Ressource'] <|eot_id|>
3A873191625.jsonld
['Stochastic optimization of fiber reinforced composites considering uncertainties']
['Briefly, the two basic questions that this research is supposed to answer are: 1. Howmuch fiber is needed and how fibers should be distributed through a fiber reinforced composite (FRC) structure in order to obtain the optimal and reliable structural response? 2. How do uncertainties influence the optimization results and reliability of the structure? Giving answer to the above questions a double stage sequential optimization algorithm for finding the optimal content of short fiber reinforcements and their distribution in the composite structure, considering uncertain design parameters, is presented. In the first stage, the optimal amount of short fibers in a FRC structure with uniformly distributed fibers is conducted in the framework of a Reliability Based Design Optimization (RBDO) problem. Presented model considers material, structural and modeling uncertainties. In the second stage, the fiber distribution optimization (with the aim to further increase in structural reliability) is performed by defining a fiber distribution function through a Non-Uniform Rational BSpline (NURBS) surface. The advantages of using the NURBS surface as a fiber distribution function include: using the same data set for the optimization and analysis; high convergence rate due to the smoothness of the NURBS; mesh independency of the optimal layout; no need for any post processing technique and its non-heuristic nature. The output of stage 1 (the optimal fiber content for homogeneously distributed fibers) is considered as the input of stage 2. The output of stage 2 is the Reliability Index (b ) of the structure with the optimal fiber content and distribution. First order reliability method (in order to approximate the limit state function) as well as different material models including Rule of Mixtures, Mori-Tanaka, energy-based approach and stochastic multi-scales are implemented in different examples. The proposed combined model is able to capture the role of available uncertainties in FRC structures through a computationally efficient algorithm using all sequential, NURBS and sensitivity based techniques. The methodology is successfully implemented for interfacial shear stress optimization in sandwich beams and also for optimization of the internal cooling channels in a ceramic matrix composite. Finally, after some changes and modifications by combining Isogeometric Analysis, level set and point wise density mapping techniques, the computational framework is extended for topology optimization of piezoelectric / flexoelectric materials.']
['gnd:1120622646', 'gnd:135943620', 'gnd:4017233-8', 'gnd:4043664-0', 'gnd:4134341-4', 'gnd:5180842-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873191625']
['Rabczuk, Timon', 'Lahmer, Tom', 'Finite-Elemente-Methode', 'Optimierung', 'Faserverbundwerkstoff', 'Bauhaus-Universität Weimar']
Document ### Title: ['Stochastic optimization of fiber reinforced composites considering uncertainties'] ### Abstract: ['Briefly, the two basic questions that this research is supposed to answer are: 1. Howmuch fiber is needed and how fibers should be distributed through a fiber reinforced composite (FRC) structure in order to obtain the optimal and reliable structural response? 2. How do uncertainties influence the optimization results and reliability of the structure? Giving answer to the above questions a double stage sequential optimization algorithm for finding the optimal content of short fiber reinforcements and their distribution in the composite structure, considering uncertain design parameters, is presented. In the first stage, the optimal amount of short fibers in a FRC structure with uniformly distributed fibers is conducted in the framework of a Reliability Based Design Optimization (RBDO) problem. Presented model considers material, structural and modeling uncertainties. In the second stage, the fiber distribution optimization (with the aim to further increase in structural reliability) is performed by defining a fiber distribution function through a Non-Uniform Rational BSpline (NURBS) surface. The advantages of using the NURBS surface as a fiber distribution function include: using the same data set for the optimization and analysis; high convergence rate due to the smoothness of the NURBS; mesh independency of the optimal layout; no need for any post processing technique and its non-heuristic nature. The output of stage 1 (the optimal fiber content for homogeneously distributed fibers) is considered as the input of stage 2. The output of stage 2 is the Reliability Index (b ) of the structure with the optimal fiber content and distribution. First order reliability method (in order to approximate the limit state function) as well as different material models including Rule of Mixtures, Mori-Tanaka, energy-based approach and stochastic multi-scales are implemented in different examples. The proposed combined model is able to capture the role of available uncertainties in FRC structures through a computationally efficient algorithm using all sequential, NURBS and sensitivity based techniques. The methodology is successfully implemented for interfacial shear stress optimization in sandwich beams and also for optimization of the internal cooling channels in a ceramic matrix composite. Finally, after some changes and modifications by combining Isogeometric Analysis, level set and point wise density mapping techniques, the computational framework is extended for topology optimization of piezoelectric / flexoelectric materials.'] ### GND ID: ['gnd:1120622646', 'gnd:135943620', 'gnd:4017233-8', 'gnd:4043664-0', 'gnd:4134341-4', 'gnd:5180842-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873191625'] ### GND class: ['Rabczuk, Timon', 'Lahmer, Tom', 'Finite-Elemente-Methode', 'Optimierung', 'Faserverbundwerkstoff', 'Bauhaus-Universität Weimar'] <|eot_id|>
3A87335723X.jsonld
['Effect of bioinspired surface microstructures on hemodynamics and platelet adhesion']
['Occlusion by thrombosis due to the absence of the endothelial cell (EC) layer is one of the most frequent causes of failure of artificial vascular grafts. Bioinspired surface structures may have a potential to reduce the adhesion of platelets contributing to hemostasis. The aim of this PhD research was to design a suitable microstructured surface mimicking the EC morphology for synthetic vascular grafts that inhibits the platelet adhesion and aggregation, the main cause of thrombosis.']
['gnd:1120419948', 'gnd:36164-1', 'gnd:4069549-9', 'gnd:4152192-4', 'gnd:4267769-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87335723X']
['Pham, Tam Thanh', 'Friedrich-Schiller-Universität Jena', 'Blutgefäß', 'Endothelzelle', 'Biomaterial']
Document ### Title: ['Effect of bioinspired surface microstructures on hemodynamics and platelet adhesion'] ### Abstract: ['Occlusion by thrombosis due to the absence of the endothelial cell (EC) layer is one of the most frequent causes of failure of artificial vascular grafts. Bioinspired surface structures may have a potential to reduce the adhesion of platelets contributing to hemostasis. The aim of this PhD research was to design a suitable microstructured surface mimicking the EC morphology for synthetic vascular grafts that inhibits the platelet adhesion and aggregation, the main cause of thrombosis.'] ### GND ID: ['gnd:1120419948', 'gnd:36164-1', 'gnd:4069549-9', 'gnd:4152192-4', 'gnd:4267769-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87335723X'] ### GND class: ['Pham, Tam Thanh', 'Friedrich-Schiller-Universität Jena', 'Blutgefäß', 'Endothelzelle', 'Biomaterial'] <|eot_id|>
3A87335897X.jsonld
['Application of commercial aircraft-based observations of greenhouse gases to carbon cycle science']
['Robust and sustained observations of atmospheric greenhouse gases like CO2 and CH4 are of great importance in order to understand the current state of the global carbon cycle and for the reliable prediction of climate change scenarios. The current observational network is largely a combination of ground-based stations, satellite instruments and research aircraft. In recent years, a new concept has emerged in the field of global atmospheric monitoring that uses the existing commercial aviation infrastructure and deploys hi-tech instruments onboard commercial airliners. These instruments make highly precise, in-situ observations of atmospheric species at a high spatial and temporal resolution while the aircraft performs its intended task of flying people from one part of the globe to the other. Vertical profiles are measured near airports and cruise level data are obtained in the UTLS (Upper Troposphere Lower Stratosphere) region, thus providing a rich and extensive dataset for studying the chemical and physical processes in the atmosphere.']
['gnd:1120420644', 'gnd:36164-1', 'gnd:4038852-9', 'gnd:4164552-2', 'gnd:4438735-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87335897X']
['Verma, Shreeya', 'Friedrich-Schiller-Universität Jena', 'Messung', 'Kohlenstoffkreislauf', 'Treibhausgas']
Document ### Title: ['Application of commercial aircraft-based observations of greenhouse gases to carbon cycle science'] ### Abstract: ['Robust and sustained observations of atmospheric greenhouse gases like CO2 and CH4 are of great importance in order to understand the current state of the global carbon cycle and for the reliable prediction of climate change scenarios. The current observational network is largely a combination of ground-based stations, satellite instruments and research aircraft. In recent years, a new concept has emerged in the field of global atmospheric monitoring that uses the existing commercial aviation infrastructure and deploys hi-tech instruments onboard commercial airliners. These instruments make highly precise, in-situ observations of atmospheric species at a high spatial and temporal resolution while the aircraft performs its intended task of flying people from one part of the globe to the other. Vertical profiles are measured near airports and cruise level data are obtained in the UTLS (Upper Troposphere Lower Stratosphere) region, thus providing a rich and extensive dataset for studying the chemical and physical processes in the atmosphere.'] ### GND ID: ['gnd:1120420644', 'gnd:36164-1', 'gnd:4038852-9', 'gnd:4164552-2', 'gnd:4438735-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87335897X'] ### GND class: ['Verma, Shreeya', 'Friedrich-Schiller-Universität Jena', 'Messung', 'Kohlenstoffkreislauf', 'Treibhausgas'] <|eot_id|>
3A873363477.jsonld
['Micro- and nanopatterning by local electrochemical lithography']
['The present thesis addressed the preparation of functional micro- and nanopatterns by local electrochemical lithography. Different molecules and nanoparticles could be self-assembled on the lithographic patterns to form functional systems and devices. Several technologically important materials were investigated to extend the range of substrates for the lithographic approach.']
['gnd:1120420512', 'gnd:36164-1', 'gnd:4036042-8', 'gnd:4131028-7', 'gnd:4204530-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873363477']
['Liu, He', 'Friedrich-Schiller-Universität Jena', 'Lithografie', 'Mikrostruktur', 'Nanostruktur']
Document ### Title: ['Micro- and nanopatterning by local electrochemical lithography'] ### Abstract: ['The present thesis addressed the preparation of functional micro- and nanopatterns by local electrochemical lithography. Different molecules and nanoparticles could be self-assembled on the lithographic patterns to form functional systems and devices. Several technologically important materials were investigated to extend the range of substrates for the lithographic approach.'] ### GND ID: ['gnd:1120420512', 'gnd:36164-1', 'gnd:4036042-8', 'gnd:4131028-7', 'gnd:4204530-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873363477'] ### GND class: ['Liu, He', 'Friedrich-Schiller-Universität Jena', 'Lithografie', 'Mikrostruktur', 'Nanostruktur'] <|eot_id|>
3A873456130.jsonld
['Sequestration of heavy metals and radionuclides in ectomycorrhiza']
['The involvement of microorganisms such as fungi, present in the environment, take part in the process of element re-distribution. Ectomycorrhiza (ECM) was investigated concerning metal and radionuclide distribution within the system soil-ECM. The development of the ECM tree partners Picea abies and Pinus sylvestris was studied in relation to a symbiosis with the early colonizer ectomycorrhizal fungi Paxillus involutus and Pisolithus tinctorius, as well as the late colonizer fungus Tricholoma vaccinum. With pot experiments, the influence of ECM on metal distribution in soil was analyzed. High bioconcentration factors (BCF) associated with metal enrichment in the fungal cell was found to correlate with low glutathione S-transferase (GST) activities. While early colonizers showed higher GST activity in the mycelium as well as in mycorrhizal roots, the late colonizer T. vaccinum had lower or even lacking GST activity. In this study was shown that basidiomycetes excrete secondary metabolites and nutrients, like sugars or amino acids, via guttation. Additionally, high Pb values were measured in guttation droplets after cultivation in Pb supplemented media, which shows detoxification for survival under harsh environmental conditions. An involvement of aquaporin proteins in guttation, by forming water channels in the membrane, could be shown too. The transfer of water as well as gases or soluble substances can be inhibited by acetazolamide and silver ions which led to less guttation and altered element contents in the guttation fluid. Here, fungi could be shown to determine element concentrations in their host plant, and keep homeostasis within their cells by support of the GST enzyme as well as excreting metals with guttation. Thus, the role of fungi in element cycling can be followed and furthermore potentially find applications.']
['gnd:1046417967', 'gnd:1120509955', 'gnd:36164-1', 'gnd:4017047-0', 'gnd:4151671-0', 'gnd:4188986-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873456130']
['Erbsenstreuling', 'Formann, Steffi G. E.', 'Friedrich-Schiller-Universität Jena', 'Fichte', 'Ektotrophe Mykorrhiza', 'Waldkiefer']
Document ### Title: ['Sequestration of heavy metals and radionuclides in ectomycorrhiza'] ### Abstract: ['The involvement of microorganisms such as fungi, present in the environment, take part in the process of element re-distribution. Ectomycorrhiza (ECM) was investigated concerning metal and radionuclide distribution within the system soil-ECM. The development of the ECM tree partners Picea abies and Pinus sylvestris was studied in relation to a symbiosis with the early colonizer ectomycorrhizal fungi Paxillus involutus and Pisolithus tinctorius, as well as the late colonizer fungus Tricholoma vaccinum. With pot experiments, the influence of ECM on metal distribution in soil was analyzed. High bioconcentration factors (BCF) associated with metal enrichment in the fungal cell was found to correlate with low glutathione S-transferase (GST) activities. While early colonizers showed higher GST activity in the mycelium as well as in mycorrhizal roots, the late colonizer T. vaccinum had lower or even lacking GST activity. In this study was shown that basidiomycetes excrete secondary metabolites and nutrients, like sugars or amino acids, via guttation. Additionally, high Pb values were measured in guttation droplets after cultivation in Pb supplemented media, which shows detoxification for survival under harsh environmental conditions. An involvement of aquaporin proteins in guttation, by forming water channels in the membrane, could be shown too. The transfer of water as well as gases or soluble substances can be inhibited by acetazolamide and silver ions which led to less guttation and altered element contents in the guttation fluid. Here, fungi could be shown to determine element concentrations in their host plant, and keep homeostasis within their cells by support of the GST enzyme as well as excreting metals with guttation. Thus, the role of fungi in element cycling can be followed and furthermore potentially find applications.'] ### GND ID: ['gnd:1046417967', 'gnd:1120509955', 'gnd:36164-1', 'gnd:4017047-0', 'gnd:4151671-0', 'gnd:4188986-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873456130'] ### GND class: ['Erbsenstreuling', 'Formann, Steffi G. E.', 'Friedrich-Schiller-Universität Jena', 'Fichte', 'Ektotrophe Mykorrhiza', 'Waldkiefer'] <|eot_id|>
3A873592107.jsonld
['Legal framework and basis for the establishment of space cooperation in Asia']
['"This study aims to discuss the legal opportunities for establishing an institutionalized framework of space cooperation in Asia. There are two main steps to be undertaken in order to achieve the goal of the present study: in the first step, the national space regulations of the main Asian space countries are to be compared and analyzed, and the "model provisions" for promoting the cooperation of these Asian space countries are to be proposed by applying international standards. In the second step, legal measures to improve the cooperation activity of APSCO are proposed by way of comparison to the legal framework of ESA as well as analyzing the situation regarding the development of Asian space activities. Meanwhile, relevant legal measures for coordinating the programs of APSCO and APRSAF are proposed."--']
['gnd:1114851027', 'gnd:4003217-6', 'gnd:4140394-0', 'gnd:4207363-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873592107']
['Nie, Mingyan', 'Asien', 'Weltraumrecht', 'Weltraumvertrag']
Document ### Title: ['Legal framework and basis for the establishment of space cooperation in Asia'] ### Abstract: ['"This study aims to discuss the legal opportunities for establishing an institutionalized framework of space cooperation in Asia. There are two main steps to be undertaken in order to achieve the goal of the present study: in the first step, the national space regulations of the main Asian space countries are to be compared and analyzed, and the "model provisions" for promoting the cooperation of these Asian space countries are to be proposed by applying international standards. In the second step, legal measures to improve the cooperation activity of APSCO are proposed by way of comparison to the legal framework of ESA as well as analyzing the situation regarding the development of Asian space activities. Meanwhile, relevant legal measures for coordinating the programs of APSCO and APRSAF are proposed."--'] ### GND ID: ['gnd:1114851027', 'gnd:4003217-6', 'gnd:4140394-0', 'gnd:4207363-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873592107'] ### GND class: ['Nie, Mingyan', 'Asien', 'Weltraumrecht', 'Weltraumvertrag'] <|eot_id|>
3A873623258.jsonld
['Innovative techniques for the characterization and interpretation of coastal aquifers : pumping test interpretation by means of the drawdown derivative to estimate aquifer heterogeneity']
['Aquifers are intrinsically heterogeneous, but the interpretation of pumping tests to estimate hydraulic aquifer parameters, such as transmissivity and storativity, is commonly performed under the assumption of homogeneity, by utilizing Theis’ equation. This yields interpreted parameters whose relation to aquifer heterogeneity is uncertain. To optimize Theis-based pumping test interpretation techniques for the application to heterogeneous systems, this study investigates the relationship between the interpreted parameters and the underlying heterogeneity of aquifers. Two time-dependent spatial weighting functions are derived which enable the estimation of upscaled transmissivities from a given heterogeneous transmissivity distribution. The comparison of the upscaled transmissivities to the interpreted Theis-based transmissivities from synthetically generated pumping tests reveals that their meaning depends on the properties of the Theis solution, used during the interpretation process. If the interpreted transmissivity is estimated from the drawdown derivative it relates to an upscaled heterogeneous transmissivity field, but to an upscaled homogeneous transmissivity if the drawdown itself is used. This procedure is applied to infinite aquifers and to aquifers delimited by a linear constant head boundary (BCH). It is shown that Theis-based interpretation methods allow for assessing aquifer heterogeneity. Moreover, a new pumping test interpretation method for BCH aquifers is developed which allows for estimating the transmissivity continuously from the transient drawdown. The theoretical investigations are supplemented by the evaluation of real pumping tests in an aquifer system strongly affected by tectonics. In this regard, this study confirms that pumping test interpretation can provide fundamental information on reservoir boundaries and hydrogeological.']
['gnd:1120420423', 'gnd:36164-1', 'gnd:4022375-9', 'gnd:4026307-1', 'gnd:4672962-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873623258']
['Pechstein, Armin', 'Friedrich-Schiller-Universität Jena', 'Grundwasserleiter', 'Hydrogeologie', 'Transmissivität (Hydrologie)']
Document ### Title: ['Innovative techniques for the characterization and interpretation of coastal aquifers : pumping test interpretation by means of the drawdown derivative to estimate aquifer heterogeneity'] ### Abstract: ['Aquifers are intrinsically heterogeneous, but the interpretation of pumping tests to estimate hydraulic aquifer parameters, such as transmissivity and storativity, is commonly performed under the assumption of homogeneity, by utilizing Theis’ equation. This yields interpreted parameters whose relation to aquifer heterogeneity is uncertain. To optimize Theis-based pumping test interpretation techniques for the application to heterogeneous systems, this study investigates the relationship between the interpreted parameters and the underlying heterogeneity of aquifers. Two time-dependent spatial weighting functions are derived which enable the estimation of upscaled transmissivities from a given heterogeneous transmissivity distribution. The comparison of the upscaled transmissivities to the interpreted Theis-based transmissivities from synthetically generated pumping tests reveals that their meaning depends on the properties of the Theis solution, used during the interpretation process. If the interpreted transmissivity is estimated from the drawdown derivative it relates to an upscaled heterogeneous transmissivity field, but to an upscaled homogeneous transmissivity if the drawdown itself is used. This procedure is applied to infinite aquifers and to aquifers delimited by a linear constant head boundary (BCH). It is shown that Theis-based interpretation methods allow for assessing aquifer heterogeneity. Moreover, a new pumping test interpretation method for BCH aquifers is developed which allows for estimating the transmissivity continuously from the transient drawdown. The theoretical investigations are supplemented by the evaluation of real pumping tests in an aquifer system strongly affected by tectonics. In this regard, this study confirms that pumping test interpretation can provide fundamental information on reservoir boundaries and hydrogeological.'] ### GND ID: ['gnd:1120420423', 'gnd:36164-1', 'gnd:4022375-9', 'gnd:4026307-1', 'gnd:4672962-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873623258'] ### GND class: ['Pechstein, Armin', 'Friedrich-Schiller-Universität Jena', 'Grundwasserleiter', 'Hydrogeologie', 'Transmissivität (Hydrologie)'] <|eot_id|>
3A873726790.jsonld
['Development of experimental methods to measure temperature fields and velocity fields in fluid flows using Magnetic Resonance Imaging']
['Zusammenfassung: The work described in this thesis aims to establish high spatially resolved 2D and 3D MR thermometry (MRT) in complex fluid flows. It studies in detail the accurate and precise measurement of temperature with MRT as well as MR velocimetry (MRV) in thermofluid applications (involving fluid mechanics and thermodynamics) simultaneously within a single measurement session. Experimental results using the newly developed methods and techniques demonstrate that MRI offers great potential to gain new insights into fundamental heat transfer phenomena, and that it can be of great interest as an additional non-invasive measurement modality']
['gnd:1120506522', 'gnd:4058078-7', 'gnd:4120806-7', 'gnd:4443931-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873726790']
['Buchenberg, Waltraud', 'Strömungsfeld', 'Kernspintomografie', 'Temperaturfeld']
Document ### Title: ['Development of experimental methods to measure temperature fields and velocity fields in fluid flows using Magnetic Resonance Imaging'] ### Abstract: ['Zusammenfassung: The work described in this thesis aims to establish high spatially resolved 2D and 3D MR thermometry (MRT) in complex fluid flows. It studies in detail the accurate and precise measurement of temperature with MRT as well as MR velocimetry (MRV) in thermofluid applications (involving fluid mechanics and thermodynamics) simultaneously within a single measurement session. Experimental results using the newly developed methods and techniques demonstrate that MRI offers great potential to gain new insights into fundamental heat transfer phenomena, and that it can be of great interest as an additional non-invasive measurement modality'] ### GND ID: ['gnd:1120506522', 'gnd:4058078-7', 'gnd:4120806-7', 'gnd:4443931-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873726790'] ### GND class: ['Buchenberg, Waltraud', 'Strömungsfeld', 'Kernspintomografie', 'Temperaturfeld'] <|eot_id|>
3A873734432.jsonld
['Erstellung und Charakterisierung polyploider Genotypen von Calluna vulgaris (L.) Hull']
['Polyploidie, Heide, Knospenblütigkeit, simple sequence repeats, Durchflusscytometrie. - Polyploidy, heather, bud-bloomers, flow cytometry']
['gnd:4228453-3', 'gnd:4326761-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873734432']
['Heidekraut', 'Polyploidiezüchtung', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Erstellung und Charakterisierung polyploider Genotypen von Calluna vulgaris (L.) Hull'] ### Abstract: ['Polyploidie, Heide, Knospenblütigkeit, simple sequence repeats, Durchflusscytometrie. - Polyploidy, heather, bud-bloomers, flow cytometry'] ### GND ID: ['gnd:4228453-3', 'gnd:4326761-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873734432'] ### GND class: ['Heidekraut', 'Polyploidiezüchtung', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A873744896.jsonld
['Innerstädtische Flusslandschaften im Spiegel der lokalen Planungskultur : planungskulturelle Perspektiven einer integrierten Stadtentwicklung im Umgang mit ihren Flusslandschaften']
['Planungskultur, Flusslandschaft, Grounded Theory Methologie in der Planung. - Planning culture, riverscapes, grounded theory methodology in planning']
['gnd:1067542582', 'gnd:140759956', 'gnd:4056730-8', 'gnd:4072821-3', 'gnd:4132857-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873744896']
['Othengrafen, Frank', 'Danielzyk, Rainer', 'Stadtentwicklung', 'Innenstadt', 'Flusslandschaft', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Innerstädtische Flusslandschaften im Spiegel der lokalen Planungskultur : planungskulturelle Perspektiven einer integrierten Stadtentwicklung im Umgang mit ihren Flusslandschaften'] ### Abstract: ['Planungskultur, Flusslandschaft, Grounded Theory Methologie in der Planung. - Planning culture, riverscapes, grounded theory methodology in planning'] ### GND ID: ['gnd:1067542582', 'gnd:140759956', 'gnd:4056730-8', 'gnd:4072821-3', 'gnd:4132857-7', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873744896'] ### GND class: ['Othengrafen, Frank', 'Danielzyk, Rainer', 'Stadtentwicklung', 'Innenstadt', 'Flusslandschaft', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A873979249.jsonld
['Magnesiumoxidnanoröhrchen in dynamischen elektrischen Feldern : Car-Parrinello-Molekulardynamik-Untersuchungen an (MgO)n- und Li(MgO)n-Nanoröhrchen']
['Car-Parrinello-Molekulardynamik, Li(MgO)n-Nanoröhrchen, zeitabhängiges elektrisches Feld. - Car-Parrinello molecular dynamic, Li(MgO)n nanotube, time-dependent electric field']
['gnd:113413572', 'gnd:4014211-5', 'gnd:4168538-6', 'gnd:4170370-4', 'gnd:4844582-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873979249']
['Grabow, Jens-Uwe', 'Elektrisches Feld', 'Magnesiumoxid', 'Molekulardynamik', 'Nanoröhre', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Magnesiumoxidnanoröhrchen in dynamischen elektrischen Feldern : Car-Parrinello-Molekulardynamik-Untersuchungen an (MgO)n- und Li(MgO)n-Nanoröhrchen'] ### Abstract: ['Car-Parrinello-Molekulardynamik, Li(MgO)n-Nanoröhrchen, zeitabhängiges elektrisches Feld. - Car-Parrinello molecular dynamic, Li(MgO)n nanotube, time-dependent electric field'] ### GND ID: ['gnd:113413572', 'gnd:4014211-5', 'gnd:4168538-6', 'gnd:4170370-4', 'gnd:4844582-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A873979249'] ### GND class: ['Grabow, Jens-Uwe', 'Elektrisches Feld', 'Magnesiumoxid', 'Molekulardynamik', 'Nanoröhre', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A874312248.jsonld
['Studies on ansamycin antibiotics : mutasynthetic approach towards new rifamycin derivatives and total synthesis of progeldanamycin derivatives']
['Rifamycin, geldanamycin, total synthesis, mutasynthesis, polyketide synthase. - Totalsynthese, Mutasynthese, Polyketidsynthase']
['gnd:4142584-4', 'gnd:4412308-5', 'gnd:4839252-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874312248']
['Ansamycine', 'Totalsynthese', 'Polyketid-Synthasen', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Studies on ansamycin antibiotics : mutasynthetic approach towards new rifamycin derivatives and total synthesis of progeldanamycin derivatives'] ### Abstract: ['Rifamycin, geldanamycin, total synthesis, mutasynthesis, polyketide synthase. - Totalsynthese, Mutasynthese, Polyketidsynthase'] ### GND ID: ['gnd:4142584-4', 'gnd:4412308-5', 'gnd:4839252-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874312248'] ### GND class: ['Ansamycine', 'Totalsynthese', 'Polyketid-Synthasen', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A874359716.jsonld
['Entwicklung eines E-Learning-Konzeptes zum Capacity Building für die biologische Abfallbehandlung']
[['Internationally, organic waste represents a major portion of the municipal solid waste, poses health and sanitary risks and is responsible for methane production if its deposition happens uncontrolled. The separate collection of organic waste followed by a proper biological waste treatment, exploits the potential of the resource organic waste: substitution of fertilizers, production of renewable energy, reduction of greenhouse gas emissions, reduction of residual wastes. To open knowledge to the public and to the international education market, an online learning platform for relevant stakeholders and needs-based core competencies is necessary. A constructivistic didactic approach in a problem-based format supports self-directed learning and serves professional demands.', 'Weltweit stellen Bioabfälle einen großen Anteil der Siedlungsabfälle dar. Eine Getrennterfassung mit anschließender biologischer Behandlung schöpft das Ressourcenpotenzial der Bioabfälle aus: Substitution von Dünger, Erzeugung erneuerbarer Energien, Reduzierung der Treibhausgasemissionen und des Restmüllaufkommens. Um dieses Wissen öffentlich zugänglich zu machen und für den internationalen Weiterbildungsmarkt zu öffnen, bedarf es einer Online-Lernplattform zur Ansprache relevanter Akteure und bedarfsgerecht aufbereiteter Kompetenzen. Ein konstruktivistischer didaktischer Ansatz im problembasierten Format unterstützt selbstgesteuertes Lernen und wird beruflichen Ansprüchen gerecht.']]
['gnd:1014529964', 'gnd:10200393-2', 'gnd:1061626717', 'gnd:1092203567', 'gnd:2067664-5', 'gnd:4289080-9', 'gnd:4727098-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874359716']
['Kuchta, Kerstin', 'Technische Universität Hamburg-Harburg, Institut für Umwelttechnik und Energiewirtschaft', 'Otterpohl, Ralf', 'Schlüter, Michael', 'Technische Universität Hamburg-Harburg', 'Biologische Abfallbehandlung', 'E-Learning']
Document ### Title: ['Entwicklung eines E-Learning-Konzeptes zum Capacity Building für die biologische Abfallbehandlung'] ### Abstract: [['Internationally, organic waste represents a major portion of the municipal solid waste, poses health and sanitary risks and is responsible for methane production if its deposition happens uncontrolled. The separate collection of organic waste followed by a proper biological waste treatment, exploits the potential of the resource organic waste: substitution of fertilizers, production of renewable energy, reduction of greenhouse gas emissions, reduction of residual wastes. To open knowledge to the public and to the international education market, an online learning platform for relevant stakeholders and needs-based core competencies is necessary. A constructivistic didactic approach in a problem-based format supports self-directed learning and serves professional demands.', 'Weltweit stellen Bioabfälle einen großen Anteil der Siedlungsabfälle dar. Eine Getrennterfassung mit anschließender biologischer Behandlung schöpft das Ressourcenpotenzial der Bioabfälle aus: Substitution von Dünger, Erzeugung erneuerbarer Energien, Reduzierung der Treibhausgasemissionen und des Restmüllaufkommens. Um dieses Wissen öffentlich zugänglich zu machen und für den internationalen Weiterbildungsmarkt zu öffnen, bedarf es einer Online-Lernplattform zur Ansprache relevanter Akteure und bedarfsgerecht aufbereiteter Kompetenzen. Ein konstruktivistischer didaktischer Ansatz im problembasierten Format unterstützt selbstgesteuertes Lernen und wird beruflichen Ansprüchen gerecht.']] ### GND ID: ['gnd:1014529964', 'gnd:10200393-2', 'gnd:1061626717', 'gnd:1092203567', 'gnd:2067664-5', 'gnd:4289080-9', 'gnd:4727098-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874359716'] ### GND class: ['Kuchta, Kerstin', 'Technische Universität Hamburg-Harburg, Institut für Umwelttechnik und Energiewirtschaft', 'Otterpohl, Ralf', 'Schlüter, Michael', 'Technische Universität Hamburg-Harburg', 'Biologische Abfallbehandlung', 'E-Learning'] <|eot_id|>
3A874372089.jsonld
['Fremdionenstabilisierte Dicalciumsilikate : Synthese und hydraulische Reaktion']
[['The cement industry has a global share of about 8 % on the CO2 emission. Therefore, there is increased demand for research on new sustainable binding materials as well as on clinker substitute products. A newly developed binding material based on hydraulic calcium hydrosilicates is Celitement. Therefore this work aims on the production and characterization of calcium silicates. The investigation focuses on the phase C2S. Due to the incorporation of foreign ions the high temperature modifications (α’H- and α-C2S) can be stabilized. Hydration studies under standard conditions show that C2S converted into the C-S-H phase within 100 hours. The hydraulic reactivity under hydrothermal conditions was studied by means of XRD in situ using the beamline SUL-X at the synchrotron radiation facility in Karlsruhe as well as ex situ in laboratory autoclaves. The hydrothermal treatment of the C2S samples produced α-C2SH, suitable for the production of Celitement.', 'dicalcium silicate; foreign ions; stabilization; high temperature modifications; hydrothermal hydration; synchrotron; alpha-dicalciumsilicate hydrate (α-C2SH); cement; Celitement', 'Dicalciumsilikat; Fremdionen; Stabilisierung; Hochtemperaturmodifikationen; hydrothermale Hydratation; Synchrotron; alpha-Dicalciumsilikathydrat (α-C2SH); Zement; Celitement', 'Da die Zementindustrie einen Anteil von 8% am weltweiten CO2-Ausstoß verursacht, ist die Produktion von nachhaltigem Zement in den Fokus von Forschung und Entwicklung gerückt. Eines dieser neuartig entwickeltes Bindemittel ist das, auf hydraulischen Calciumhydrosilikaten basierende Produkt Celitement. Im Rahmen dieser Arbeit wurden daher reaktive Calciumsilikate hergestellt und charakterisiert. Hauptaugenmerk lag dabei auf dem C2S. Durch den Einbau von Fremdionen gelang es, die Hochtemperaturmodifikationen (α’H- und α-C2S) zu stabilisieren. Hydratationsversuche unter Standardbedingungen zeigten einen Umsatz nach 100 Stunden in die C-S-H Phase. Die hydraulischen Reaktivitäten unter hydrothermalen Bedingungen wurden in situ an der Beamline SUL-X der Strahlenquelle für Synchrotronstrahlung in Karlsruhe sowie ex situ in Laborautoklaven untersucht. Durch die hydrothermale Behandlung der C2S-Phasen konnte α C2SH hergestellt werden, das für die Produktion von Celitement geeignet ist.']]
['gnd:1150432454', 'gnd:2024276-1', 'gnd:4147194-5', 'gnd:4279983-1', 'gnd:4326464-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874372089']
['Pöllmann, Herbert', 'Martin-Luther-Universität Halle-Wittenberg', 'Calciumsilicate', 'Zementherstellung', 'Nachhaltigkeit']
Document ### Title: ['Fremdionenstabilisierte Dicalciumsilikate : Synthese und hydraulische Reaktion'] ### Abstract: [['The cement industry has a global share of about 8 % on the CO2 emission. Therefore, there is increased demand for research on new sustainable binding materials as well as on clinker substitute products. A newly developed binding material based on hydraulic calcium hydrosilicates is Celitement. Therefore this work aims on the production and characterization of calcium silicates. The investigation focuses on the phase C2S. Due to the incorporation of foreign ions the high temperature modifications (α’H- and α-C2S) can be stabilized. Hydration studies under standard conditions show that C2S converted into the C-S-H phase within 100 hours. The hydraulic reactivity under hydrothermal conditions was studied by means of XRD in situ using the beamline SUL-X at the synchrotron radiation facility in Karlsruhe as well as ex situ in laboratory autoclaves. The hydrothermal treatment of the C2S samples produced α-C2SH, suitable for the production of Celitement.', 'dicalcium silicate; foreign ions; stabilization; high temperature modifications; hydrothermal hydration; synchrotron; alpha-dicalciumsilicate hydrate (α-C2SH); cement; Celitement', 'Dicalciumsilikat; Fremdionen; Stabilisierung; Hochtemperaturmodifikationen; hydrothermale Hydratation; Synchrotron; alpha-Dicalciumsilikathydrat (α-C2SH); Zement; Celitement', 'Da die Zementindustrie einen Anteil von 8% am weltweiten CO2-Ausstoß verursacht, ist die Produktion von nachhaltigem Zement in den Fokus von Forschung und Entwicklung gerückt. Eines dieser neuartig entwickeltes Bindemittel ist das, auf hydraulischen Calciumhydrosilikaten basierende Produkt Celitement. Im Rahmen dieser Arbeit wurden daher reaktive Calciumsilikate hergestellt und charakterisiert. Hauptaugenmerk lag dabei auf dem C2S. Durch den Einbau von Fremdionen gelang es, die Hochtemperaturmodifikationen (α’H- und α-C2S) zu stabilisieren. Hydratationsversuche unter Standardbedingungen zeigten einen Umsatz nach 100 Stunden in die C-S-H Phase. Die hydraulischen Reaktivitäten unter hydrothermalen Bedingungen wurden in situ an der Beamline SUL-X der Strahlenquelle für Synchrotronstrahlung in Karlsruhe sowie ex situ in Laborautoklaven untersucht. Durch die hydrothermale Behandlung der C2S-Phasen konnte α C2SH hergestellt werden, das für die Produktion von Celitement geeignet ist.']] ### GND ID: ['gnd:1150432454', 'gnd:2024276-1', 'gnd:4147194-5', 'gnd:4279983-1', 'gnd:4326464-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874372089'] ### GND class: ['Pöllmann, Herbert', 'Martin-Luther-Universität Halle-Wittenberg', 'Calciumsilicate', 'Zementherstellung', 'Nachhaltigkeit'] <|eot_id|>
3A874937213.jsonld
['Investigation and development of dual-phase oxygen-transporting membranes for oxygen production and chemical reactors']
['Oxygen transport, dual-phase materials, CO2 tolerance, membrane reactors. - Sauerstofftransport, zweiphasige Materialien, CO2-Toleranz, Membranreaktoren']
['gnd:120131714', 'gnd:4179219-1', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874937213']
['Feldhoff, Armin', 'Sauerstofftransport', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Investigation and development of dual-phase oxygen-transporting membranes for oxygen production and chemical reactors'] ### Abstract: ['Oxygen transport, dual-phase materials, CO2 tolerance, membrane reactors. - Sauerstofftransport, zweiphasige Materialien, CO2-Toleranz, Membranreaktoren'] ### GND ID: ['gnd:120131714', 'gnd:4179219-1', 'gnd:4555095-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874937213'] ### GND class: ['Feldhoff, Armin', 'Sauerstofftransport', 'Membranreaktor', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A874942195.jsonld
['Evaluierung der Mittel- und Nahinfrarotspektroskopie zur online Überwachung von CHO-Kultivierungen']
['Nahinfrarotspektroskopie, Mittelinfrarotspektroskopie, CHO-Zellen, Kultivierung, Permutationsanalyse, PAT, Chemometrie. - Near infrared spectroscopy, mid infrared spectroscopy, CHO cell cultivation, permutation analysis, chemometrics']
['gnd:1069292419', 'gnd:112803741', 'gnd:4135411-4', 'gnd:4307166-1', 'gnd:4835248-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874942195']
['Scheper, Thomas', 'Hitzmann, Bernd', 'Infrarotspektroskopie', 'Bioverfahrenstechnik', 'CHO-Zelle', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Evaluierung der Mittel- und Nahinfrarotspektroskopie zur online Überwachung von CHO-Kultivierungen'] ### Abstract: ['Nahinfrarotspektroskopie, Mittelinfrarotspektroskopie, CHO-Zellen, Kultivierung, Permutationsanalyse, PAT, Chemometrie. - Near infrared spectroscopy, mid infrared spectroscopy, CHO cell cultivation, permutation analysis, chemometrics'] ### GND ID: ['gnd:1069292419', 'gnd:112803741', 'gnd:4135411-4', 'gnd:4307166-1', 'gnd:4835248-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874942195'] ### GND class: ['Scheper, Thomas', 'Hitzmann, Bernd', 'Infrarotspektroskopie', 'Bioverfahrenstechnik', 'CHO-Zelle', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A874960851.jsonld
['Strukturuntersuchungen an porösen Backwaren']
['Gebäck, Computertomographie, digitale Bildverarbeitung, Prozessoptimierung. - Pastry, computed tomography, digital image processing, process optimization']
['gnd:1069292419', 'gnd:112803741', 'gnd:4019489-9', 'gnd:4113240-3', 'gnd:4131028-7', 'gnd:4139715-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874960851']
['Scheper, Thomas', 'Hitzmann, Bernd', 'Gebäck', 'Computertomografie', 'Mikrostruktur', 'Bruchfestigkeit', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Strukturuntersuchungen an porösen Backwaren'] ### Abstract: ['Gebäck, Computertomographie, digitale Bildverarbeitung, Prozessoptimierung. - Pastry, computed tomography, digital image processing, process optimization'] ### GND ID: ['gnd:1069292419', 'gnd:112803741', 'gnd:4019489-9', 'gnd:4113240-3', 'gnd:4131028-7', 'gnd:4139715-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A874960851'] ### GND class: ['Scheper, Thomas', 'Hitzmann, Bernd', 'Gebäck', 'Computertomografie', 'Mikrostruktur', 'Bruchfestigkeit', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A875016413.jsonld
['Preparation and characterization of planar hybrid Josephson junctions based on Ba-122 pnictide single crystals']
['In this work, it has been realized to fabricate and investigate of the Josephson junctions based on iron pnictide Ba(Fe1-xCox)2As2 single crystals (Co:Ba-122) using established thin-film process. The designed layout was achieved for the first time worldwide which is a planar hybrid Josephson junctions. The c-axis planar junctions were achieved, in which were tested different barriers such as the intrinsic barrier, or metal barrier (gold) then were further developed to use the insulating barrier (titanium oxide, aluminum oxide).']
['gnd:1121926673', 'gnd:36164-1', 'gnd:4013901-3', 'gnd:4047987-0', 'gnd:4058651-0', 'gnd:4136339-5', 'gnd:4162777-5', 'gnd:4174516-4', 'gnd:4321721-7', 'gnd:7668583-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875016413']
['Hasan, Noor Ali', 'Friedrich-Schiller-Universität Jena', 'Einkristall', 'Quanteninterferometer', 'Supraleitung', 'Dünnschichttechnik', 'Josephson-Kontakt', 'Fotolithografie (Halbleitertechnologie)', 'Dimension 2', 'Eisenpnictide']
Document ### Title: ['Preparation and characterization of planar hybrid Josephson junctions based on Ba-122 pnictide single crystals'] ### Abstract: ['In this work, it has been realized to fabricate and investigate of the Josephson junctions based on iron pnictide Ba(Fe1-xCox)2As2 single crystals (Co:Ba-122) using established thin-film process. The designed layout was achieved for the first time worldwide which is a planar hybrid Josephson junctions. The c-axis planar junctions were achieved, in which were tested different barriers such as the intrinsic barrier, or metal barrier (gold) then were further developed to use the insulating barrier (titanium oxide, aluminum oxide).'] ### GND ID: ['gnd:1121926673', 'gnd:36164-1', 'gnd:4013901-3', 'gnd:4047987-0', 'gnd:4058651-0', 'gnd:4136339-5', 'gnd:4162777-5', 'gnd:4174516-4', 'gnd:4321721-7', 'gnd:7668583-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875016413'] ### GND class: ['Hasan, Noor Ali', 'Friedrich-Schiller-Universität Jena', 'Einkristall', 'Quanteninterferometer', 'Supraleitung', 'Dünnschichttechnik', 'Josephson-Kontakt', 'Fotolithografie (Halbleitertechnologie)', 'Dimension 2', 'Eisenpnictide'] <|eot_id|>
3A875719945.jsonld
['On the sensitivity of the radial mode analysis (RMA) for the experimental evaluation of sound propagation in a low-pressure turbine']
['Sound propagation, turbine, radial mode analysis (RMA), sensitivity analysis. - Schallausbreitung, Radialmodenanalyse (RMA), Sensitivitätsanalyse']
['gnd:1122562845', 'gnd:4034054-5', 'gnd:4061226-0', 'gnd:4121611-8', 'gnd:4154773-1', 'gnd:4226177-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875719945']
['Laguna, Juan David', 'Lärmschutz', 'Turbine', 'Schallfeld', 'Flugtriebwerk', 'Modalanalyse', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['On the sensitivity of the radial mode analysis (RMA) for the experimental evaluation of sound propagation in a low-pressure turbine'] ### Abstract: ['Sound propagation, turbine, radial mode analysis (RMA), sensitivity analysis. - Schallausbreitung, Radialmodenanalyse (RMA), Sensitivitätsanalyse'] ### GND ID: ['gnd:1122562845', 'gnd:4034054-5', 'gnd:4061226-0', 'gnd:4121611-8', 'gnd:4154773-1', 'gnd:4226177-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875719945'] ### GND class: ['Laguna, Juan David', 'Lärmschutz', 'Turbine', 'Schallfeld', 'Flugtriebwerk', 'Modalanalyse', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A875851010.jsonld
['Friction surfacing of titanium grade 1 and Ti-6Al-4V']
[['The friction surfacing process is a relatively novel and promising surface modification technology, by which coatings can be deposited as a protection or surface repair method. The main feature of this process, compared with other technologies, is that the coatings are deposited in solid state phase. Therefore, the induced massive deformation alters the initial microstructure of the materials, resulting in a fully recrystallised microstructure of the coatings. Typically, the grain size of the coating is smaller than that of the raw material, which leads to improved mechanical properties. Since the process is a relatively new technology, several possible material combinations in similar or dissimilar configurations are unexplored. Titanium alloys are rather expensive. Therefore, new technologies are required to keep the production cost at an acceptable level and offer an additional cladding process that is environmental friendly. The aim of the current work was to deposit coatings from the titanium alloys by friction surfacing. Process development for Ti-6Al-4V alloy and Ti-Gr.1 as coating materials to be deposited by friction surfacing was carried out. At high temperatures titanium alloys exhibit complex deformation behaviour, particularly when passing through the alpha-beta phase transformation and in the beta phase state. Strain rate sensitivity and flow instabilities are characteristics of Ti-based materials that may hinder the deposition process. These difficulties were overcome by the selection of an adequate process control method and a systematic choice of process parameter combinations. A broad range of parameter sets for titanium depositions has been established, whereby two different acting rotational speed regimes were observed. The low rotational speed regime revealed variations in the process temperature, which influenced the material flow behaviour leading to flash generation at the coating. The microstructure in this regime consists of refined dynamically recrystallised grains. In contrast, the high rotational speed regime revealed a higher resulting temperature, which did not vary in this range. This constant temperature led to stable material flow behaviour and flash-free coatings were deposited. However, the high temperature influenced the grain size of the coatings resulting in coarse grains. Still, these differences in the grain size did not influence the fretting wear behaviour of the coatings. The investigation of fretting wear experiments exposed a similar behaviour of friction surfacing coatings and the base material. In micro tensile tests the coatings exhibited an increase in strength but a decrease in ductility, which is typical for dynamically recrystallised materials, which contain residual deformation. Therefore, it could be shown that friction surfacing can be considered as a repair method for titanium parts.', 'Das Reibauftragschweißverfahren ist eine relativ neue und vielversprechende Technologie zur Oberflächenmodifikation technischer Komponenten. Hierbei können Beschichtungen zur lokalen Eigenschaftsänderung oder zu Reparaturzwecken erzeugt werden. Das Hauptmerkmal dieses Verfahrens, im Vergleich zu konventionellen Beschichtungsmethoden, ist, dass die Schichten in der Festphase aufgetragen werden. Durch die eingebrachte massive plastische Verformung des Werkstoffes ändert sich die Mikrostruktur und es entsteht ein vollständig rekristallisiertes Gefüge. Die Korngröße der entstandenen Schichten ist im Regelfall kleiner als die des Ausgangsmaterials, was zu verbesserten mechanischen Eigenschaften führt. Weil das Reibauftragschweißen ein relativ neues Verfahren ist, sind einige der möglichen Materialkombinationen in artgleichen und artfremden Paarungen noch unerforscht. Aufgrund dessen, dass Titanlegierungen als Ausgangswerkstoff kostspielig sind, sind neue Technologien, welche die Produktionskosten reduzieren können, von großem Interesse. Mit dem Reibauftragschweißen bietet sich ein Beschichtungsverfahren an, welches auch modernen Ansprüchen an die Umweltverträglichkeit gerecht wird. Das Ziel der vorliegenden Arbeit war es, Schichten aus Titanlegierungen mittels Reibauftragschweißen aufzutragen. Dafür wurde die Prozessentwicklung für die Werkstoffe Ti-6Al-4V und Ti-Gr.1 realisiert. Titanlegierungen weisen ein komplexes Umformverhalten bei hohen Temperaturen auf, insbesondere, wenn sie sowohl den alpha-beta-, als auch den beta-Phasenbereich beim Umformen durchlaufen. Hierbei sind Dehnratenempfindlichkeit und Fließinstabilität charakteristisch für Titanlegierungen, was die Verarbeitung beim Reibauftragschweißen erschweren kann. Diese Schwierigkeiten wurden durch die systematische Erarbeitung geeigneter Prozessparameter und einer zielführenden Prozesssteuerung überwunden. Es wurde ein breites Parameterfenster etabliert, innerhalb dessen zwei verschiedene Regimes der Drehzahlen gefunden wurden, zwischen denen sich das Materialverhalten deutlich unterscheidet. Das niedrige Drehzahl-Regime weist dabei Veränderungen in der Prozesstemperatur auf, welche die Fließeigenschaften des Werkstoffs beeinflussen, was wiederum zu einer Wulstbildung an den Schichten führt. Die Mikrostruktur in diesem Regime offenbart feine, dynamisch rekristallisierte Körner. Dazu gegensätzlich weist das hohe Drehzahl-Regime eine höhere resultierende Temperatur auf, die in diesem Bereich nicht variiert. Die konstante Temperatur führt zu einem stabilen Materialfließverhalten und ermöglicht damit eine dementsprechend wulstfreie Realisierung von Schichten. Allerdings führen diese hohen Temperaturen zu einem Anstieg in der Korngröße. Die in Bezug auf die Korngröße unterschiedlich entwickelte Mikrostruktur zeigte keinen Einfluss auf das Schwingungsverschleißverhalten der Schichten. Die Verschleißeigenschaften der Schichten und des Grundwerkstoffs erwiesen sich als vergleichbar. Im Zuge von Mikroflachzug-Tests offenbarten die Schichten eine erhöhte Festigkeit mit leichten Einbußen in der Duktilität, was ein charakteristisches Verhalten für dynamisch rekristallisierte Werkstoffe bei Vorhandensein von Restverformung ist. Somit konnte gezeigt werden, dass das Reibauftragschweißen als Reparaturmethode für Titan- Bauteile, grundsätzlich in Betracht gezogen werden kann.']]
['gnd:10184290-9', 'gnd:1133309526', 'gnd:2067664-5', 'gnd:4053870-9', 'gnd:4185562-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875851010']
['Technische Universität Hamburg-Harburg, Institut für Werkstoffphysik und -technologie', 'Huber, Norbert', 'Technische Universität Hamburg-Harburg', 'Schweißen', 'Titanlegierung']
Document ### Title: ['Friction surfacing of titanium grade 1 and Ti-6Al-4V'] ### Abstract: [['The friction surfacing process is a relatively novel and promising surface modification technology, by which coatings can be deposited as a protection or surface repair method. The main feature of this process, compared with other technologies, is that the coatings are deposited in solid state phase. Therefore, the induced massive deformation alters the initial microstructure of the materials, resulting in a fully recrystallised microstructure of the coatings. Typically, the grain size of the coating is smaller than that of the raw material, which leads to improved mechanical properties. Since the process is a relatively new technology, several possible material combinations in similar or dissimilar configurations are unexplored. Titanium alloys are rather expensive. Therefore, new technologies are required to keep the production cost at an acceptable level and offer an additional cladding process that is environmental friendly. The aim of the current work was to deposit coatings from the titanium alloys by friction surfacing. Process development for Ti-6Al-4V alloy and Ti-Gr.1 as coating materials to be deposited by friction surfacing was carried out. At high temperatures titanium alloys exhibit complex deformation behaviour, particularly when passing through the alpha-beta phase transformation and in the beta phase state. Strain rate sensitivity and flow instabilities are characteristics of Ti-based materials that may hinder the deposition process. These difficulties were overcome by the selection of an adequate process control method and a systematic choice of process parameter combinations. A broad range of parameter sets for titanium depositions has been established, whereby two different acting rotational speed regimes were observed. The low rotational speed regime revealed variations in the process temperature, which influenced the material flow behaviour leading to flash generation at the coating. The microstructure in this regime consists of refined dynamically recrystallised grains. In contrast, the high rotational speed regime revealed a higher resulting temperature, which did not vary in this range. This constant temperature led to stable material flow behaviour and flash-free coatings were deposited. However, the high temperature influenced the grain size of the coatings resulting in coarse grains. Still, these differences in the grain size did not influence the fretting wear behaviour of the coatings. The investigation of fretting wear experiments exposed a similar behaviour of friction surfacing coatings and the base material. In micro tensile tests the coatings exhibited an increase in strength but a decrease in ductility, which is typical for dynamically recrystallised materials, which contain residual deformation. Therefore, it could be shown that friction surfacing can be considered as a repair method for titanium parts.', 'Das Reibauftragschweißverfahren ist eine relativ neue und vielversprechende Technologie zur Oberflächenmodifikation technischer Komponenten. Hierbei können Beschichtungen zur lokalen Eigenschaftsänderung oder zu Reparaturzwecken erzeugt werden. Das Hauptmerkmal dieses Verfahrens, im Vergleich zu konventionellen Beschichtungsmethoden, ist, dass die Schichten in der Festphase aufgetragen werden. Durch die eingebrachte massive plastische Verformung des Werkstoffes ändert sich die Mikrostruktur und es entsteht ein vollständig rekristallisiertes Gefüge. Die Korngröße der entstandenen Schichten ist im Regelfall kleiner als die des Ausgangsmaterials, was zu verbesserten mechanischen Eigenschaften führt. Weil das Reibauftragschweißen ein relativ neues Verfahren ist, sind einige der möglichen Materialkombinationen in artgleichen und artfremden Paarungen noch unerforscht. Aufgrund dessen, dass Titanlegierungen als Ausgangswerkstoff kostspielig sind, sind neue Technologien, welche die Produktionskosten reduzieren können, von großem Interesse. Mit dem Reibauftragschweißen bietet sich ein Beschichtungsverfahren an, welches auch modernen Ansprüchen an die Umweltverträglichkeit gerecht wird. Das Ziel der vorliegenden Arbeit war es, Schichten aus Titanlegierungen mittels Reibauftragschweißen aufzutragen. Dafür wurde die Prozessentwicklung für die Werkstoffe Ti-6Al-4V und Ti-Gr.1 realisiert. Titanlegierungen weisen ein komplexes Umformverhalten bei hohen Temperaturen auf, insbesondere, wenn sie sowohl den alpha-beta-, als auch den beta-Phasenbereich beim Umformen durchlaufen. Hierbei sind Dehnratenempfindlichkeit und Fließinstabilität charakteristisch für Titanlegierungen, was die Verarbeitung beim Reibauftragschweißen erschweren kann. Diese Schwierigkeiten wurden durch die systematische Erarbeitung geeigneter Prozessparameter und einer zielführenden Prozesssteuerung überwunden. Es wurde ein breites Parameterfenster etabliert, innerhalb dessen zwei verschiedene Regimes der Drehzahlen gefunden wurden, zwischen denen sich das Materialverhalten deutlich unterscheidet. Das niedrige Drehzahl-Regime weist dabei Veränderungen in der Prozesstemperatur auf, welche die Fließeigenschaften des Werkstoffs beeinflussen, was wiederum zu einer Wulstbildung an den Schichten führt. Die Mikrostruktur in diesem Regime offenbart feine, dynamisch rekristallisierte Körner. Dazu gegensätzlich weist das hohe Drehzahl-Regime eine höhere resultierende Temperatur auf, die in diesem Bereich nicht variiert. Die konstante Temperatur führt zu einem stabilen Materialfließverhalten und ermöglicht damit eine dementsprechend wulstfreie Realisierung von Schichten. Allerdings führen diese hohen Temperaturen zu einem Anstieg in der Korngröße. Die in Bezug auf die Korngröße unterschiedlich entwickelte Mikrostruktur zeigte keinen Einfluss auf das Schwingungsverschleißverhalten der Schichten. Die Verschleißeigenschaften der Schichten und des Grundwerkstoffs erwiesen sich als vergleichbar. Im Zuge von Mikroflachzug-Tests offenbarten die Schichten eine erhöhte Festigkeit mit leichten Einbußen in der Duktilität, was ein charakteristisches Verhalten für dynamisch rekristallisierte Werkstoffe bei Vorhandensein von Restverformung ist. Somit konnte gezeigt werden, dass das Reibauftragschweißen als Reparaturmethode für Titan- Bauteile, grundsätzlich in Betracht gezogen werden kann.']] ### GND ID: ['gnd:10184290-9', 'gnd:1133309526', 'gnd:2067664-5', 'gnd:4053870-9', 'gnd:4185562-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A875851010'] ### GND class: ['Technische Universität Hamburg-Harburg, Institut für Werkstoffphysik und -technologie', 'Huber, Norbert', 'Technische Universität Hamburg-Harburg', 'Schweißen', 'Titanlegierung'] <|eot_id|>
3A876216939.jsonld
['Dynamic and equilibrium adsorption behaviour of [beta]-lactoglobulin at the solution/tetradecane interface: Effect of solution concentration, pH and ionic strength']
['Proteins are amphiphilic and adsorb at liquid interfaces. Therefore, they can be efficient stabilizers of foams and emulsions. β-lactoglobulin (BLG) is one of the most widely studied proteins due to its major industrial applications, in particular in food technology. In the present work, the influence of different bulk concentration, solution pH and ionic strength on the dynamic and equilibrium pressures of BLG adsorbed layers at the solution/tetradecane (W/TD) interface has been investigated. Dynamic interfacial pressure (Π) and interfacial dilational elastic modulus (E’) of BLG solutions for various concentrations at three different pH values of 3, 5 and 7 at a fixed ionic strength of 10 mM and for a selected fixed concentration at three different ionic strengths of 1 mM, 10 mM and 100 mM are measured by Profile Analysis Tensiometer PAT-1 (SINTERFACE Technologies, Germany). A quantitative data analysis requires additional consideration of depletion due to BLG adsorption at the interface at low protein bulk concentrations. This fac…']
['gnd:112286518X', 'gnd:4158139-8', 'gnd:4166377-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876216939']
['Won, Jooyoung', 'Grenzflächenspannung', 'Lactoglobulin (beta-)']
Document ### Title: ['Dynamic and equilibrium adsorption behaviour of [beta]-lactoglobulin at the solution/tetradecane interface: Effect of solution concentration, pH and ionic strength'] ### Abstract: ['Proteins are amphiphilic and adsorb at liquid interfaces. Therefore, they can be efficient stabilizers of foams and emulsions. β-lactoglobulin (BLG) is one of the most widely studied proteins due to its major industrial applications, in particular in food technology. In the present work, the influence of different bulk concentration, solution pH and ionic strength on the dynamic and equilibrium pressures of BLG adsorbed layers at the solution/tetradecane (W/TD) interface has been investigated. Dynamic interfacial pressure (Π) and interfacial dilational elastic modulus (E’) of BLG solutions for various concentrations at three different pH values of 3, 5 and 7 at a fixed ionic strength of 10 mM and for a selected fixed concentration at three different ionic strengths of 1 mM, 10 mM and 100 mM are measured by Profile Analysis Tensiometer PAT-1 (SINTERFACE Technologies, Germany). A quantitative data analysis requires additional consideration of depletion due to BLG adsorption at the interface at low protein bulk concentrations. This fac…'] ### GND ID: ['gnd:112286518X', 'gnd:4158139-8', 'gnd:4166377-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876216939'] ### GND class: ['Won, Jooyoung', 'Grenzflächenspannung', 'Lactoglobulin (beta-)'] <|eot_id|>
3A876217935.jsonld
['Dynamic and equilibrium adsorption behaviour of [beta]-lactoglobulin at the solution/tetradecane interface : effect of solution concentration, pH and ionic strength']
['Proteins are amphiphilic and adsorb at liquid interfaces. Therefore, they can be efficient stabilizers of foams and emulsions. β-lactoglobulin (BLG) is one of the most widely studied proteins due to its major industrial applications, in particular in food technology. In the present work, the influence of different bulk concentration, solution pH and ionic strength on the dynamic and equilibrium pressures of BLG adsorbed layers at the solution/tetradecane (W/TD) interface has been investigated. Dynamic interfacial pressure (Π) and interfacial dilational elastic modulus (E’) of BLG solutions for various concentrations at three different pH values of 3, 5 and 7 at a fixed ionic strength of 10 mM and for a selected fixed concentration at three different ionic strengths of 1 mM, 10 mM and 100 mM are measured by Profile Analysis Tensiometer PAT-1 (SINTERFACE Technologies, Germany). A quantitative data analysis requires additional consideration of depletion due to BLG adsorption at the interface at low protein bulk concentrations. This fac…']
['gnd:112286518X', 'gnd:2120681-8', 'gnd:4158139-8', 'gnd:4166377-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876217935']
['Won, Jooyoung', 'Universität Potsdam', 'Grenzflächenspannung', 'Lactoglobulin (beta-)']
Document ### Title: ['Dynamic and equilibrium adsorption behaviour of [beta]-lactoglobulin at the solution/tetradecane interface : effect of solution concentration, pH and ionic strength'] ### Abstract: ['Proteins are amphiphilic and adsorb at liquid interfaces. Therefore, they can be efficient stabilizers of foams and emulsions. β-lactoglobulin (BLG) is one of the most widely studied proteins due to its major industrial applications, in particular in food technology. In the present work, the influence of different bulk concentration, solution pH and ionic strength on the dynamic and equilibrium pressures of BLG adsorbed layers at the solution/tetradecane (W/TD) interface has been investigated. Dynamic interfacial pressure (Π) and interfacial dilational elastic modulus (E’) of BLG solutions for various concentrations at three different pH values of 3, 5 and 7 at a fixed ionic strength of 10 mM and for a selected fixed concentration at three different ionic strengths of 1 mM, 10 mM and 100 mM are measured by Profile Analysis Tensiometer PAT-1 (SINTERFACE Technologies, Germany). A quantitative data analysis requires additional consideration of depletion due to BLG adsorption at the interface at low protein bulk concentrations. This fac…'] ### GND ID: ['gnd:112286518X', 'gnd:2120681-8', 'gnd:4158139-8', 'gnd:4166377-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876217935'] ### GND class: ['Won, Jooyoung', 'Universität Potsdam', 'Grenzflächenspannung', 'Lactoglobulin (beta-)'] <|eot_id|>
3A876275978.jsonld
['Plant organic matter mobilization and export in fluvial systems : a case study from the eastern Nepalese Arun Valley']
['The global carbon cycle is closely linked to Earth’s climate. In the context of continuously unchecked anthropogenic CO₂ emissions, the importance of natural CO₂ bond and carbon storage is increasing. An important biogenic mechanism of natural atmospheric CO₂ drawdown is the photosynthetic carbon fixation in plants and the subsequent longterm deposition of plant detritus in sediments. The main objective of this thesis is to identify factors that control mobilization and transport of plant organic matter (pOM) through rivers towards sedimentation basins. I investigated this aspect in the eastern Nepalese Arun Valley. The trans-Himalayan Arun River is characterized by a strong elevation gradient (205 − 8848 m asl) that is accompanied by strong changes in ecology and climate ranging from wet tropical conditions in the Himalayan forelad to high alpine tundra on the Tibetan Plateau. Therefore, the Arun is an excellent natural laboratory, allowing the investigation of the effect of vegetation cover, climate, and topography on plant organ…']
['gnd:1122990782', 'gnd:130332119', 'gnd:4015366-6', 'gnd:4247535-1', 'gnd:4276512-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876275978']
['Hoffmann, Bernd', 'Sachse, Dirk', 'Erosion', 'Arun (Nepal)', 'Pflanzliches Material']
Document ### Title: ['Plant organic matter mobilization and export in fluvial systems : a case study from the eastern Nepalese Arun Valley'] ### Abstract: ['The global carbon cycle is closely linked to Earth’s climate. In the context of continuously unchecked anthropogenic CO₂ emissions, the importance of natural CO₂ bond and carbon storage is increasing. An important biogenic mechanism of natural atmospheric CO₂ drawdown is the photosynthetic carbon fixation in plants and the subsequent longterm deposition of plant detritus in sediments. The main objective of this thesis is to identify factors that control mobilization and transport of plant organic matter (pOM) through rivers towards sedimentation basins. I investigated this aspect in the eastern Nepalese Arun Valley. The trans-Himalayan Arun River is characterized by a strong elevation gradient (205 − 8848 m asl) that is accompanied by strong changes in ecology and climate ranging from wet tropical conditions in the Himalayan forelad to high alpine tundra on the Tibetan Plateau. Therefore, the Arun is an excellent natural laboratory, allowing the investigation of the effect of vegetation cover, climate, and topography on plant organ…'] ### GND ID: ['gnd:1122990782', 'gnd:130332119', 'gnd:4015366-6', 'gnd:4247535-1', 'gnd:4276512-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876275978'] ### GND class: ['Hoffmann, Bernd', 'Sachse, Dirk', 'Erosion', 'Arun (Nepal)', 'Pflanzliches Material'] <|eot_id|>
3A87628277X.jsonld
['Hybrid nanolayer architectures for ultrafast acousto-plasmonics in soft matter']
['The goal of the presented work is to explore the interaction between gold nanorods (GNRs) and hyper-sound waves. For the generation of the hyper-sound I have used Azobenzene-containing polymer transducers. Multilayer polymer structures with well-defined thicknesses and smooth interfaces were built via layer-by-layer deposition. Anionic polyelectrolytes with Azobenzene side groups (PAzo) were alternated with cationic polymer PAH, for the creation of transducer films. PSS/PAH multilayer were built for spacer layers, which do not absorb in the visible light range. The properties of the PAzo/PAH film as a transducer are carefully characterized by static and transient optical spectroscopy. The optical and mechanical properties of the transducer are studied on the picosecond time scale. In particular the relative change of the refractive index of the photo-excited and expanded PAH/PAzo is Δn/n = - 2.6*10‐4. Calibration of the generated strain is performed by ultrafast X-ray diffraction calibrated the strain in a Mica substrate, into which t…']
['gnd:1111819866', 'gnd:112299690X', 'gnd:124203817', 'gnd:4129372-1', 'gnd:4130722-7', 'gnd:4160847-1', 'gnd:4161090-8', 'gnd:4174845-1', 'gnd:4175236-3', 'gnd:4178306-2', 'gnd:4186732-4', 'gnd:4609142-7', 'gnd:4707308-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87628277X']
['Santer, Svetlana', 'Pavlenko, Elena', 'Bargheer, Matias', 'Akustisches Phonon', 'Laserimpuls', 'Hybridwerkstoff', 'Hyperschall', 'Plasmon', 'Polymerfilm', 'Röntgenbeugung', 'Ultraschneller Prozess', 'Weiche Materie', 'Nanodraht']
Document ### Title: ['Hybrid nanolayer architectures for ultrafast acousto-plasmonics in soft matter'] ### Abstract: ['The goal of the presented work is to explore the interaction between gold nanorods (GNRs) and hyper-sound waves. For the generation of the hyper-sound I have used Azobenzene-containing polymer transducers. Multilayer polymer structures with well-defined thicknesses and smooth interfaces were built via layer-by-layer deposition. Anionic polyelectrolytes with Azobenzene side groups (PAzo) were alternated with cationic polymer PAH, for the creation of transducer films. PSS/PAH multilayer were built for spacer layers, which do not absorb in the visible light range. The properties of the PAzo/PAH film as a transducer are carefully characterized by static and transient optical spectroscopy. The optical and mechanical properties of the transducer are studied on the picosecond time scale. In particular the relative change of the refractive index of the photo-excited and expanded PAH/PAzo is Δn/n = - 2.6*10‐4. Calibration of the generated strain is performed by ultrafast X-ray diffraction calibrated the strain in a Mica substrate, into which t…'] ### GND ID: ['gnd:1111819866', 'gnd:112299690X', 'gnd:124203817', 'gnd:4129372-1', 'gnd:4130722-7', 'gnd:4160847-1', 'gnd:4161090-8', 'gnd:4174845-1', 'gnd:4175236-3', 'gnd:4178306-2', 'gnd:4186732-4', 'gnd:4609142-7', 'gnd:4707308-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87628277X'] ### GND class: ['Santer, Svetlana', 'Pavlenko, Elena', 'Bargheer, Matias', 'Akustisches Phonon', 'Laserimpuls', 'Hybridwerkstoff', 'Hyperschall', 'Plasmon', 'Polymerfilm', 'Röntgenbeugung', 'Ultraschneller Prozess', 'Weiche Materie', 'Nanodraht'] <|eot_id|>
3A876285256.jsonld
['New inverse opal hydrogels as platform for detecting macromolecules']
['In this thesis, a route to temperature-, pH-, solvent-, 1,2-diol-, and protein-responsive sensors made of biocompatible and low-fouling materials is established. These sensor devices are based on the sensitivemodulation of the visual band gap of a photonic crystal (PhC), which is induced by the selective binding of analytes, triggering a volume phase transition.The PhCs introduced by this work show a high sensitivity not only for small biomolecules, but also for large analytes, such as glycopolymers or proteins. This enables the PhC to act as a sensor that detects analytes without the need of complex equipment. Due to their periodical dielectric structure, PhCs prevent the propagation of specific wavelengths. A change of the periodicity parameters is thus indicated by a change in the reflected wavelengths. In the case explored, the PhC sensors are implemented as periodically structured responsive hydrogels in formof an inverse opal. The stimuli-sensitive inverse opal hydrogels (IOHs) were prepared using a sacrificial opal ...']
['gnd:1123042160', 'gnd:2120681-8', 'gnd:4009840-0', 'gnd:4038824-4', 'gnd:4160909-8', 'gnd:4587112-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876285256']
['Couturier, Jean-Philippe', 'Universität Potsdam', 'Chemische Analyse', 'Sensor', 'Hydrogel', 'Photonischer Kristall']
Document ### Title: ['New inverse opal hydrogels as platform for detecting macromolecules'] ### Abstract: ['In this thesis, a route to temperature-, pH-, solvent-, 1,2-diol-, and protein-responsive sensors made of biocompatible and low-fouling materials is established. These sensor devices are based on the sensitivemodulation of the visual band gap of a photonic crystal (PhC), which is induced by the selective binding of analytes, triggering a volume phase transition.The PhCs introduced by this work show a high sensitivity not only for small biomolecules, but also for large analytes, such as glycopolymers or proteins. This enables the PhC to act as a sensor that detects analytes without the need of complex equipment. Due to their periodical dielectric structure, PhCs prevent the propagation of specific wavelengths. A change of the periodicity parameters is thus indicated by a change in the reflected wavelengths. In the case explored, the PhC sensors are implemented as periodically structured responsive hydrogels in formof an inverse opal. The stimuli-sensitive inverse opal hydrogels (IOHs) were prepared using a sacrificial opal ...'] ### GND ID: ['gnd:1123042160', 'gnd:2120681-8', 'gnd:4009840-0', 'gnd:4038824-4', 'gnd:4160909-8', 'gnd:4587112-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876285256'] ### GND class: ['Couturier, Jean-Philippe', 'Universität Potsdam', 'Chemische Analyse', 'Sensor', 'Hydrogel', 'Photonischer Kristall'] <|eot_id|>
3A876308922.jsonld
['Application of commercial aircraft-based observations of greenhouse gases to carbon cycle science']
['Robust and sustained observations of atmospheric greenhouse gases like CO2 and CH4 are of great importance in order to understand the current state of the global carbon cycle and for the reliable prediction of climate change scenarios. The current observational network is largely a combination of ground-based stations, satellite instruments and research aircraft. In recent years, a new concept has emerged in the field of global atmospheric monitoring that uses the existing commercial aviation infrastructure and deploys hi-tech instruments onboard commercial airliners. These instruments make highly precise, in-situ observations of atmospheric species at a high spatial and temporal resolution while the aircraft performs its intended task of flying people from one part of the globe to the other. Vertical profiles are measured near airports and cruise level data are obtained in the UTLS (Upper Troposphere Lower Stratosphere) region, thus providing a rich and extensive dataset for studying the chemical and physical processes in the atmosphere.']
['gnd:1120420644', 'gnd:36164-1', 'gnd:4038852-9', 'gnd:4164552-2', 'gnd:4438735-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876308922']
['Verma, Shreeya', 'Friedrich-Schiller-Universität Jena', 'Messung', 'Kohlenstoffkreislauf', 'Treibhausgas']
Document ### Title: ['Application of commercial aircraft-based observations of greenhouse gases to carbon cycle science'] ### Abstract: ['Robust and sustained observations of atmospheric greenhouse gases like CO2 and CH4 are of great importance in order to understand the current state of the global carbon cycle and for the reliable prediction of climate change scenarios. The current observational network is largely a combination of ground-based stations, satellite instruments and research aircraft. In recent years, a new concept has emerged in the field of global atmospheric monitoring that uses the existing commercial aviation infrastructure and deploys hi-tech instruments onboard commercial airliners. These instruments make highly precise, in-situ observations of atmospheric species at a high spatial and temporal resolution while the aircraft performs its intended task of flying people from one part of the globe to the other. Vertical profiles are measured near airports and cruise level data are obtained in the UTLS (Upper Troposphere Lower Stratosphere) region, thus providing a rich and extensive dataset for studying the chemical and physical processes in the atmosphere.'] ### GND ID: ['gnd:1120420644', 'gnd:36164-1', 'gnd:4038852-9', 'gnd:4164552-2', 'gnd:4438735-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876308922'] ### GND class: ['Verma, Shreeya', 'Friedrich-Schiller-Universität Jena', 'Messung', 'Kohlenstoffkreislauf', 'Treibhausgas'] <|eot_id|>
3A87635648X.jsonld
['Pattern recognition for computer security : discriminative models for email spam campaign and malware detection']
['Computer Security deals with the detection and mitigation of threats to computer networks, data, and computing hardware. Thisthesis addresses the following two computer security problems: email spam campaign and malware detection.Email spam campaigns can easily be generated using popular dissemination tools by specifying simple grammars that serve as message templates. A grammar is disseminated to nodes of a bot net, the nodes create messages by instantiating the grammar at random. Email spam campaigns can encompass huge data volumes and therefore pose a threat to the stability of the infrastructure of email service providers that have to store them. Malware -software that serves a malicious purpose- is affecting web servers, client computers via active content, and client computers through executable files. Without the help of malware detection systems it would be easy for malware creators to collect sensitive information or to infiltrate computers. The detection of threats -such as email-spam messages, phishing messages, o…']
['gnd:1123076413', 'gnd:4274324-2', 'gnd:4328500-4', 'gnd:4428654-5', 'gnd:4528688-7', 'gnd:4687059-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87635648X']
['Prasse, Paul', 'Computersicherheit', 'Erkennung', 'Data Mining', 'Spam-Mail', 'Malware']
Document ### Title: ['Pattern recognition for computer security : discriminative models for email spam campaign and malware detection'] ### Abstract: ['Computer Security deals with the detection and mitigation of threats to computer networks, data, and computing hardware. Thisthesis addresses the following two computer security problems: email spam campaign and malware detection.Email spam campaigns can easily be generated using popular dissemination tools by specifying simple grammars that serve as message templates. A grammar is disseminated to nodes of a bot net, the nodes create messages by instantiating the grammar at random. Email spam campaigns can encompass huge data volumes and therefore pose a threat to the stability of the infrastructure of email service providers that have to store them. Malware -software that serves a malicious purpose- is affecting web servers, client computers via active content, and client computers through executable files. Without the help of malware detection systems it would be easy for malware creators to collect sensitive information or to infiltrate computers. The detection of threats -such as email-spam messages, phishing messages, o…'] ### GND ID: ['gnd:1123076413', 'gnd:4274324-2', 'gnd:4328500-4', 'gnd:4428654-5', 'gnd:4528688-7', 'gnd:4687059-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A87635648X'] ### GND class: ['Prasse, Paul', 'Computersicherheit', 'Erkennung', 'Data Mining', 'Spam-Mail', 'Malware'] <|eot_id|>
3A876358172.jsonld
['Determinanten für die Membranpassage von Tat-abhängig transportierten Proteinen in Escherichia coli']
['Twin arginine translocation, Phospholipide, TatA-Selbst-Interaktion. - Phospholipids, TatA self-interaction']
['gnd:1071365908', 'gnd:120746204', 'gnd:12132379X', 'gnd:4070959-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876358172']
['Twin Arginine Translocation', 'Schippers, Axel', 'Brüser, Thomas', 'Escherichia coli', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Determinanten für die Membranpassage von Tat-abhängig transportierten Proteinen in Escherichia coli'] ### Abstract: ['Twin arginine translocation, Phospholipide, TatA-Selbst-Interaktion. - Phospholipids, TatA self-interaction'] ### GND ID: ['gnd:1071365908', 'gnd:120746204', 'gnd:12132379X', 'gnd:4070959-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876358172'] ### GND class: ['Twin Arginine Translocation', 'Schippers, Axel', 'Brüser, Thomas', 'Escherichia coli', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A876364148.jsonld
['Economic consequences of family dissolution : comparing Germany and the United States since the 1980s, and married and cohabiting parents in Germany']
['Welfare states and policies have changed greatly over the past decades, mostly characterized by retrenchments in terms of government spending or in terms of restricted access to certain benefits. In the area of family policies, however, a lot of countries have simultaneously expanded provisions and transfers for families. Bringing together the macro analysis of policy variation and household income changes on the micro-level, the main research question of the dissertation is to what extent economic consequences following separation and divorce in families with children have changed between the 1980s and the 2000s in Germany and the United States. The second research question of the dissertation regards the differences in dissolution outcomes between married and cohabiting parents in Germany. The dissertation thus aims to link institutional regulations of welfare states with the actual income situation of families. To achieve this, a research design was developed that has never been used for the analysis of the economic consequences o…']
['gnd:1123082243', 'gnd:133233863', 'gnd:4002963-3', 'gnd:4011882-4', 'gnd:4013656-5', 'gnd:4013887-2', 'gnd:4078704-7', 'gnd:4138658-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876364148']
['Radenacker, Anke', 'Kohler, Ulrich', 'Armut', 'Deutschland', 'Ehescheidung', 'Einkommen', 'USA', 'Personenstand']
Document ### Title: ['Economic consequences of family dissolution : comparing Germany and the United States since the 1980s, and married and cohabiting parents in Germany'] ### Abstract: ['Welfare states and policies have changed greatly over the past decades, mostly characterized by retrenchments in terms of government spending or in terms of restricted access to certain benefits. In the area of family policies, however, a lot of countries have simultaneously expanded provisions and transfers for families. Bringing together the macro analysis of policy variation and household income changes on the micro-level, the main research question of the dissertation is to what extent economic consequences following separation and divorce in families with children have changed between the 1980s and the 2000s in Germany and the United States. The second research question of the dissertation regards the differences in dissolution outcomes between married and cohabiting parents in Germany. The dissertation thus aims to link institutional regulations of welfare states with the actual income situation of families. To achieve this, a research design was developed that has never been used for the analysis of the economic consequences o…'] ### GND ID: ['gnd:1123082243', 'gnd:133233863', 'gnd:4002963-3', 'gnd:4011882-4', 'gnd:4013656-5', 'gnd:4013887-2', 'gnd:4078704-7', 'gnd:4138658-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876364148'] ### GND class: ['Radenacker, Anke', 'Kohler, Ulrich', 'Armut', 'Deutschland', 'Ehescheidung', 'Einkommen', 'USA', 'Personenstand'] <|eot_id|>
3A876380933.jsonld
['Deciphering multiple changes in complex climate time series using Bayesian inference']
['Change points in time series are perceived as heterogeneities in the statistical or dynamical characteristics of the observations. Unraveling such transitions yields essential information for the understanding of the observed system’s intrinsic evolution and potential external influences. A precise detection of multiple changes is therefore of great importance for various research disciplines, such as environmental sciences, bioinformatics and economics. The primary purpose of the detection approach introduced in this thesis is the investigation of transitions underlying direct or indirect climate observations. In order to develop a diagnostic approach capable to capture such a variety of natural processes, the generic statistical features in terms of central tendency and dispersion are employed in the light of Bayesian inversion. In contrast to established Bayesian approaches to multiple changes, the generic approach proposed in this thesis is not formulated in the framework of specialized partition models of high dimensionality ...']
['gnd:1123095566', 'gnd:2120681-8', 'gnd:4031170-3', 'gnd:4067486-1', 'gnd:4648118-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876380933']
['Berner, Nadine', 'Universität Potsdam', 'Klima', 'Zeitreihenanalyse', 'Bayes-Inferenz']
Document ### Title: ['Deciphering multiple changes in complex climate time series using Bayesian inference'] ### Abstract: ['Change points in time series are perceived as heterogeneities in the statistical or dynamical characteristics of the observations. Unraveling such transitions yields essential information for the understanding of the observed system’s intrinsic evolution and potential external influences. A precise detection of multiple changes is therefore of great importance for various research disciplines, such as environmental sciences, bioinformatics and economics. The primary purpose of the detection approach introduced in this thesis is the investigation of transitions underlying direct or indirect climate observations. In order to develop a diagnostic approach capable to capture such a variety of natural processes, the generic statistical features in terms of central tendency and dispersion are employed in the light of Bayesian inversion. In contrast to established Bayesian approaches to multiple changes, the generic approach proposed in this thesis is not formulated in the framework of specialized partition models of high dimensionality ...'] ### GND ID: ['gnd:1123095566', 'gnd:2120681-8', 'gnd:4031170-3', 'gnd:4067486-1', 'gnd:4648118-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876380933'] ### GND class: ['Berner, Nadine', 'Universität Potsdam', 'Klima', 'Zeitreihenanalyse', 'Bayes-Inferenz'] <|eot_id|>
3A876598610.jsonld
['Improved local polynomial estimation in nonparametric time series regression']
['We propose a modification of local polynomial time series fitting which improves the efficiency of the conventional method when the observation error is strongly mixing. This generalizes the work of Xiao et. al. in 2003, who considered an error process with an invertible linear representation. Here, we do not suppose a certain functional structure on the random observation error. Furthermore, we allow for heteroscedasticity. The procedure is based on a pre-whitening transformation of the data. The dependent variable as well as the unknown variance function are estimated via preliminary local polynomial regression. Establishing its asymptotic distribution, we show that the proposed estimator is more efficient than the conventional one. In a simulation study, the performance of our estimator on finite samples is investigated.']
['gnd:111935062X', 'gnd:36164-1', 'gnd:4228085-0', 'gnd:4431358-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876598610']
['Geller, Juliane', 'Friedrich-Schiller-Universität Jena', 'Fehlerabschätzung', 'Schätzfunktion']
Document ### Title: ['Improved local polynomial estimation in nonparametric time series regression'] ### Abstract: ['We propose a modification of local polynomial time series fitting which improves the efficiency of the conventional method when the observation error is strongly mixing. This generalizes the work of Xiao et. al. in 2003, who considered an error process with an invertible linear representation. Here, we do not suppose a certain functional structure on the random observation error. Furthermore, we allow for heteroscedasticity. The procedure is based on a pre-whitening transformation of the data. The dependent variable as well as the unknown variance function are estimated via preliminary local polynomial regression. Establishing its asymptotic distribution, we show that the proposed estimator is more efficient than the conventional one. In a simulation study, the performance of our estimator on finite samples is investigated.'] ### GND ID: ['gnd:111935062X', 'gnd:36164-1', 'gnd:4228085-0', 'gnd:4431358-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876598610'] ### GND class: ['Geller, Juliane', 'Friedrich-Schiller-Universität Jena', 'Fehlerabschätzung', 'Schätzfunktion'] <|eot_id|>
3A876615167.jsonld
['Convolutional networks to relate images']
['Zusammenfassung: Within recent years, convolutional neural networks have experienced a come back and are currently dominating the field of computer vision.In contrast to previously used methods, they allow for full data-based end-to-end training without the need to manually engineer features.On the downside, huge amounts of annotated data are needed to train a network successfully.Furthermore, the architectural design of these networks and other hyperparameters are sometimes hard to choose, especially when predicting high-resolution outputs from images.In this thesis, we show how networks can be trained without manually labeled data by using surrogate tasks, strong augmentation and synthetically generated training data.We demonstrate how generic image features for classification and matching can be learned unsupervisedly by augmenting random images to form surrogate classes.We also train networks to estimate the canonical orientation of rotated images by augmenting a large set of natural unlabeled images.In the main part of this thesis, we present a new network architecture that can be used for any pixel level regression task.We prove its value by creating the first end-to-end learning approach to compute optical flow and extend it to disparity and scene flow.All of this is done by using synthetically generated training data which we rendered using a custom version of the Blender rendering suite']
['gnd:1037053141', 'gnd:1121609635', 'gnd:4226127-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876615167']
['Optischer Fluss', 'Fischer, Philipp', 'Neuronales Netz']
Document ### Title: ['Convolutional networks to relate images'] ### Abstract: ['Zusammenfassung: Within recent years, convolutional neural networks have experienced a come back and are currently dominating the field of computer vision.In contrast to previously used methods, they allow for full data-based end-to-end training without the need to manually engineer features.On the downside, huge amounts of annotated data are needed to train a network successfully.Furthermore, the architectural design of these networks and other hyperparameters are sometimes hard to choose, especially when predicting high-resolution outputs from images.In this thesis, we show how networks can be trained without manually labeled data by using surrogate tasks, strong augmentation and synthetically generated training data.We demonstrate how generic image features for classification and matching can be learned unsupervisedly by augmenting random images to form surrogate classes.We also train networks to estimate the canonical orientation of rotated images by augmenting a large set of natural unlabeled images.In the main part of this thesis, we present a new network architecture that can be used for any pixel level regression task.We prove its value by creating the first end-to-end learning approach to compute optical flow and extend it to disparity and scene flow.All of this is done by using synthetically generated training data which we rendered using a custom version of the Blender rendering suite'] ### GND ID: ['gnd:1037053141', 'gnd:1121609635', 'gnd:4226127-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876615167'] ### GND class: ['Optischer Fluss', 'Fischer, Philipp', 'Neuronales Netz'] <|eot_id|>
3A876631758.jsonld
['Analysis and modeling of the rear side of industrial-type passivated emitter and rear silicon solar cells']
['Industrial-type silicon solar cells, wet chemical polishing, contact information. - Industrielle Silizium-Solarzellen, nasschemische Politur, Kontaktbildung']
['gnd:106952591X', 'gnd:4077445-4', 'gnd:4151733-7', 'gnd:4152082-8', 'gnd:4181740-0', 'gnd:4357741-6', 'gnd:4468345-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876631758']
['Osten, H. Jörg', 'Silicium', 'Elektrischer Kontakt', 'Emitter', 'Solarzelle', 'Passivschicht', 'Rückseite', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Analysis and modeling of the rear side of industrial-type passivated emitter and rear silicon solar cells'] ### Abstract: ['Industrial-type silicon solar cells, wet chemical polishing, contact information. - Industrielle Silizium-Solarzellen, nasschemische Politur, Kontaktbildung'] ### GND ID: ['gnd:106952591X', 'gnd:4077445-4', 'gnd:4151733-7', 'gnd:4152082-8', 'gnd:4181740-0', 'gnd:4357741-6', 'gnd:4468345-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876631758'] ### GND class: ['Osten, H. Jörg', 'Silicium', 'Elektrischer Kontakt', 'Emitter', 'Solarzelle', 'Passivschicht', 'Rückseite', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A876636490.jsonld
['Toward an integrated model of sentence processing in reading']
['In experiments investigating sentence processing, eye movement measures such as fixation durations and regression proportions while reading are commonly used to draw conclusions about processing difficulties. However, these measures are the result of an interaction of multiple cognitive levels and processing strategies and thus are only indirect indicators of processing difficulty. In order to properly interpret an eye movement response, one has to understand the underlying principles of adaptive processing such as trade-off mechanisms between reading speed and depth of comprehension that interact with task demands and individual differences. Therefore, it is necessary to establish explicit models of the respective mechanisms as well as their causal relationship with observable behavior. There are models of lexical processing and eye movement control on the one side and models on sentence parsing and memory processes on the other. However, no model so far combines both sides with explicitly defined linking assumptions. ...']
['gnd:1123293201', 'gnd:4035439-8', 'gnd:4127537-8', 'gnd:4332959-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876636490']
['Engelmann, Felix', 'Lesen', 'Psycholinguistik', 'Arbeitsgedächtnis']
Document ### Title: ['Toward an integrated model of sentence processing in reading'] ### Abstract: ['In experiments investigating sentence processing, eye movement measures such as fixation durations and regression proportions while reading are commonly used to draw conclusions about processing difficulties. However, these measures are the result of an interaction of multiple cognitive levels and processing strategies and thus are only indirect indicators of processing difficulty. In order to properly interpret an eye movement response, one has to understand the underlying principles of adaptive processing such as trade-off mechanisms between reading speed and depth of comprehension that interact with task demands and individual differences. Therefore, it is necessary to establish explicit models of the respective mechanisms as well as their causal relationship with observable behavior. There are models of lexical processing and eye movement control on the one side and models on sentence parsing and memory processes on the other. However, no model so far combines both sides with explicitly defined linking assumptions. ...'] ### GND ID: ['gnd:1123293201', 'gnd:4035439-8', 'gnd:4127537-8', 'gnd:4332959-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876636490'] ### GND class: ['Engelmann, Felix', 'Lesen', 'Psycholinguistik', 'Arbeitsgedächtnis'] <|eot_id|>
3A876637675.jsonld
['Chemically mediated plankton interactions : Prevalence, uptake, and targets of polyunsaturated aldehydes']
['Diatoms are key players in the aquatic ecosystem as they significantly contribute to photosynthetic carbon assimilation and transfer of energy to higher trophic levels. Some of these single celled algae produce polyunsaturated aldehydes (PUAs), which are derived from enzymatic oxidation of fatty acids. These aldehydes are known to inter¬fere with the reproduction of their predators and have been suggested to act as info- and allelochemicals. Compared to the biological functions of PUAs, their mechanisms of action have been less investigated. Here, I present PUA quantification data for plankton communities and provide experimen¬tal results for an enhanced mechanistic understanding of these oxylipins. To perform the studies, I estab¬lished fluorescent probes according to the activity-based protein profiling (ABPP) strategy on the basis of PUAs and bioinactive saturated aldehydes. I developed key methodological approaches (feeding and two-step incubation protocols, procedures for fluoescence microscopy) and a novel probe reporter that is a useful and universal tool in chemical biology. Uptake studies showed that the PUA-derived probe entered algal cells and accumulated in the gonads of a predator. Moreover, investigation of targets based on covalent reactions with PUAs revealed several labeled proteins in a diatom. This first proteomic approach suggests that key metabolic pathways are affected by PUAs.']
['gnd:1123291500', 'gnd:36164-1', 'gnd:4030509-0', 'gnd:4046229-8', 'gnd:4186368-9', 'gnd:4292866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876637675']
['Wolfram, Stefanie', 'Friedrich-Schiller-Universität Jena', 'Kieselalgen', 'Plankton', 'Aldehyde', 'Wirkungsmechanismus']
Document ### Title: ['Chemically mediated plankton interactions : Prevalence, uptake, and targets of polyunsaturated aldehydes'] ### Abstract: ['Diatoms are key players in the aquatic ecosystem as they significantly contribute to photosynthetic carbon assimilation and transfer of energy to higher trophic levels. Some of these single celled algae produce polyunsaturated aldehydes (PUAs), which are derived from enzymatic oxidation of fatty acids. These aldehydes are known to inter¬fere with the reproduction of their predators and have been suggested to act as info- and allelochemicals. Compared to the biological functions of PUAs, their mechanisms of action have been less investigated. Here, I present PUA quantification data for plankton communities and provide experimen¬tal results for an enhanced mechanistic understanding of these oxylipins. To perform the studies, I estab¬lished fluorescent probes according to the activity-based protein profiling (ABPP) strategy on the basis of PUAs and bioinactive saturated aldehydes. I developed key methodological approaches (feeding and two-step incubation protocols, procedures for fluoescence microscopy) and a novel probe reporter that is a useful and universal tool in chemical biology. Uptake studies showed that the PUA-derived probe entered algal cells and accumulated in the gonads of a predator. Moreover, investigation of targets based on covalent reactions with PUAs revealed several labeled proteins in a diatom. This first proteomic approach suggests that key metabolic pathways are affected by PUAs.'] ### GND ID: ['gnd:1123291500', 'gnd:36164-1', 'gnd:4030509-0', 'gnd:4046229-8', 'gnd:4186368-9', 'gnd:4292866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876637675'] ### GND class: ['Wolfram, Stefanie', 'Friedrich-Schiller-Universität Jena', 'Kieselalgen', 'Plankton', 'Aldehyde', 'Wirkungsmechanismus'] <|eot_id|>
3A876638345.jsonld
['Micro- and nanopatterning by local electrochemical lithography']
['The present thesis addressed the preparation of functional micro- and nanopatterns by local electrochemical lithography. Different molecules and nanoparticles could be self-assembled on the lithographic patterns to form functional systems and devices. Several technologically important materials were investigated to extend the range of substrates for the lithographic approach.']
['gnd:1120420512', 'gnd:36164-1', 'gnd:4036042-8', 'gnd:4131028-7', 'gnd:4204530-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876638345']
['Liu, He', 'Friedrich-Schiller-Universität Jena', 'Lithografie', 'Mikrostruktur', 'Nanostruktur']
Document ### Title: ['Micro- and nanopatterning by local electrochemical lithography'] ### Abstract: ['The present thesis addressed the preparation of functional micro- and nanopatterns by local electrochemical lithography. Different molecules and nanoparticles could be self-assembled on the lithographic patterns to form functional systems and devices. Several technologically important materials were investigated to extend the range of substrates for the lithographic approach.'] ### GND ID: ['gnd:1120420512', 'gnd:36164-1', 'gnd:4036042-8', 'gnd:4131028-7', 'gnd:4204530-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876638345'] ### GND class: ['Liu, He', 'Friedrich-Schiller-Universität Jena', 'Lithografie', 'Mikrostruktur', 'Nanostruktur'] <|eot_id|>
3A876999828.jsonld
['Use of halophytes as biofilter to decrease organic and inorganic contaminants in water and their further use for biogas production']
['Anaerobic digestion, biogas production, Chenopodium quinoa, halophytes, phytoremediation, renewable energy, sulfadimidine degradation, Tripolium pannonicum. - Anaerobe Gärung, Biogasproduktion, Halophyten, erneuerbare Energie, Sulfonamid-Abbau']
['gnd:1126205206', 'gnd:113960263', 'gnd:115683615', 'gnd:121504166', 'gnd:4000313-9', 'gnd:4145600-2', 'gnd:4158916-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876999828']
['Turcios, Ariel', 'Weichgrebe, Dirk', 'Papenbrock, Jutta', 'Dockhorn, Thomas', 'Abwasserreinigung', 'Biogasgewinnung', 'Halophyten', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Use of halophytes as biofilter to decrease organic and inorganic contaminants in water and their further use for biogas production'] ### Abstract: ['Anaerobic digestion, biogas production, Chenopodium quinoa, halophytes, phytoremediation, renewable energy, sulfadimidine degradation, Tripolium pannonicum. - Anaerobe Gärung, Biogasproduktion, Halophyten, erneuerbare Energie, Sulfonamid-Abbau'] ### GND ID: ['gnd:1126205206', 'gnd:113960263', 'gnd:115683615', 'gnd:121504166', 'gnd:4000313-9', 'gnd:4145600-2', 'gnd:4158916-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A876999828'] ### GND class: ['Turcios, Ariel', 'Weichgrebe, Dirk', 'Papenbrock, Jutta', 'Dockhorn, Thomas', 'Abwasserreinigung', 'Biogasgewinnung', 'Halophyten', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A877261733.jsonld
['"Hauptsache ein Job später" : Arbeitsweltliche Vorstellungen und Bewältigungsstrategien von Jugendlichen mit Hauptschulhintergrund']
[['What do lower secondary school students think about work and unemployment - and how do they try to enter the working world?', 'Jugendliche mit Hauptschulhintergrund haben große Schwierigkeiten beim Übergang von der Schule in die Arbeitswelt. Während verschiedene Studien diese objektive Betroffenheit immer wieder bestätigen, weiß man nur sehr wenig darüber, was sie selbst über Arbeit und Arbeitslosigkeit denken oder wissen und wie sie hierzu fühlen. Mit welchen Vorstellungen versuchen diese formal gering gebildeten Jugendlichen in die Arbeitswelt einzutreten? Carolin Kölzers qualitative Studie nimmt Bezug zur fachdidaktischen Vorstellungsforschung in der sozialwissenschaftlichen Domäne und berücksichtigt insbesondere die emotionalen Aspekte und die subjektive Betroffenheit der Jugendlichen.']]
['gnd:1045331546', 'gnd:4002730-2', 'gnd:4002805-7', 'gnd:4023680-8', 'gnd:4042570-8', 'gnd:4064032-2', 'gnd:4299411-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877261733']
['Dempki, Carolin', 'Arbeitslosigkeit', 'Arbeitswelt', 'Hauptschüler', 'Nordrhein-Westfalen', 'Vorstellung', 'Berufserwartung']
Document ### Title: ['"Hauptsache ein Job später" : Arbeitsweltliche Vorstellungen und Bewältigungsstrategien von Jugendlichen mit Hauptschulhintergrund'] ### Abstract: [['What do lower secondary school students think about work and unemployment - and how do they try to enter the working world?', 'Jugendliche mit Hauptschulhintergrund haben große Schwierigkeiten beim Übergang von der Schule in die Arbeitswelt. Während verschiedene Studien diese objektive Betroffenheit immer wieder bestätigen, weiß man nur sehr wenig darüber, was sie selbst über Arbeit und Arbeitslosigkeit denken oder wissen und wie sie hierzu fühlen. Mit welchen Vorstellungen versuchen diese formal gering gebildeten Jugendlichen in die Arbeitswelt einzutreten? Carolin Kölzers qualitative Studie nimmt Bezug zur fachdidaktischen Vorstellungsforschung in der sozialwissenschaftlichen Domäne und berücksichtigt insbesondere die emotionalen Aspekte und die subjektive Betroffenheit der Jugendlichen.']] ### GND ID: ['gnd:1045331546', 'gnd:4002730-2', 'gnd:4002805-7', 'gnd:4023680-8', 'gnd:4042570-8', 'gnd:4064032-2', 'gnd:4299411-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877261733'] ### GND class: ['Dempki, Carolin', 'Arbeitslosigkeit', 'Arbeitswelt', 'Hauptschüler', 'Nordrhein-Westfalen', 'Vorstellung', 'Berufserwartung'] <|eot_id|>
3A877313792.jsonld
['Doing democracy differently : political practices and transnational civil society']
['Transnational civil society networks have become increasingly important democratizing actors in global politics. Still, the exploration of democracy in such networks remains conceptually and methodologically challenging. Practice theory provides a framework to study democracy as routinized performances even in contexts of fluid boundaries, temporal relations and a diffuse constituency. The author attempts to understand how new forms of democratic practice emerge in the interaction between political actors and their structural environments.']
['gnd:1081955597', 'gnd:4043271-3', 'gnd:4180040-0', 'gnd:4180214-7', 'gnd:4259228-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877313792']
['Knappe, Henrike', 'Österreich', 'Schülerin', 'Schulübergang', 'Schuljahr 5-8']
Document ### Title: ['Doing democracy differently : political practices and transnational civil society'] ### Abstract: ['Transnational civil society networks have become increasingly important democratizing actors in global politics. Still, the exploration of democracy in such networks remains conceptually and methodologically challenging. Practice theory provides a framework to study democracy as routinized performances even in contexts of fluid boundaries, temporal relations and a diffuse constituency. The author attempts to understand how new forms of democratic practice emerge in the interaction between political actors and their structural environments.'] ### GND ID: ['gnd:1081955597', 'gnd:4043271-3', 'gnd:4180040-0', 'gnd:4180214-7', 'gnd:4259228-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877313792'] ### GND class: ['Knappe, Henrike', 'Österreich', 'Schülerin', 'Schulübergang', 'Schuljahr 5-8'] <|eot_id|>
3A877612218.jsonld
['Role of bacterial biofilms and extracellular polymeric substances in the colloidal stability and transport of hematite nanoparticles in synthetic porous media']
['The heterogeneous physicochemical properties of biofilm and extracellular polymeric substances (EPS) play an important role in deciding the fate of transport of nanoparticles in subsurface. However, contrasting results have been observed for the mobility of different nanoparticle transport in porous media coated with biofilms. Also, no comparative studies ave been done linking the effect of biofilms on colloidal stability and mobility of colloids to date. Laboratory scale experiments were conducted to obtain insights into different ways bacterial biofilms and EPS can influence the transport of nanoparticles in porous media. Using complementary experimental approaches, we investigated (1) the effect of microbial EPS on the colloidal stability of nanoparticles, (2a.) the transport of uncoated colloidal nanoparticles in biofilm and EPS-coated porous media, (2b.) the transport of EPS-coated colloidal nanoparticles in uncoated porous media (2c), the combined transport of EPS-coated colloids in biofilm and EPS-coated porous media, and finally (3) the remobilization of deposited colloidal nanoparticles by EPS. Laboratory synthesized hematite nanoparticles (HNP) and Bacillus subtilis 168 (DSM 402) were used as nanoparticles and biofilm forming bacterium respectively. To study the effect of EPS on the colloidal stability, HNP were amended with three increasing concentrations of EPS (20, 200 and 500 mg/l carbon) resulting in carbon:iron ratios 1:5, 2:1 and 5:1, respectively. The zeta potential (ZP), the shift in isoelectric point and the change in the critical coagulation concentration (CCC) for NaCl and CaCl2 showed formation of colloidally stable organo-mineral colloids at higher concentrations of EPS (200 mg/l and 500 mg/l of carbon, HNP2:1, HNP 5:1). However, lower concentrations of EPS (20 mg/l carbon, HNP 1:5) resulted into aggregation of HNP. The transport of uncoated and EPS-coated HNP colloids at environmental pH was studied with closed flow columns experiments in three different synthetic porous media, i.e., uncoated, biofilm-coated, and EPS-coated glass beads. No drastic change was observed in the pH and the electrical conductivity of the system during the transport experiments. However, a constant amount of organic matter and bacterial cells were continuously released from the porous media coatings. In the first scenario, positively charged uncoated HNP were immobile and retained in uncoated-glass bead porous media. Contrary, a mobile fraction of negatively charged HNP was observed in biofilms and EPS-coated porous media. The charge reversal of HNP during transport is due to adsorption of organic matter released from the coatings forming organomineral associations of HNP and components of the biofilm or EPS.']
['gnd:1123963029', 'gnd:36164-1', 'gnd:4004296-0', 'gnd:4164695-2', 'gnd:4232790-8', 'gnd:4443397-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877612218']
['Narvekar, Sneha Pradip', 'Friedrich-Schiller-Universität Jena', 'Bakterien', 'Kolloid', 'Biofilm', 'Stofftransport (Biologie)']
Document ### Title: ['Role of bacterial biofilms and extracellular polymeric substances in the colloidal stability and transport of hematite nanoparticles in synthetic porous media'] ### Abstract: ['The heterogeneous physicochemical properties of biofilm and extracellular polymeric substances (EPS) play an important role in deciding the fate of transport of nanoparticles in subsurface. However, contrasting results have been observed for the mobility of different nanoparticle transport in porous media coated with biofilms. Also, no comparative studies ave been done linking the effect of biofilms on colloidal stability and mobility of colloids to date. Laboratory scale experiments were conducted to obtain insights into different ways bacterial biofilms and EPS can influence the transport of nanoparticles in porous media. Using complementary experimental approaches, we investigated (1) the effect of microbial EPS on the colloidal stability of nanoparticles, (2a.) the transport of uncoated colloidal nanoparticles in biofilm and EPS-coated porous media, (2b.) the transport of EPS-coated colloidal nanoparticles in uncoated porous media (2c), the combined transport of EPS-coated colloids in biofilm and EPS-coated porous media, and finally (3) the remobilization of deposited colloidal nanoparticles by EPS. Laboratory synthesized hematite nanoparticles (HNP) and Bacillus subtilis 168 (DSM 402) were used as nanoparticles and biofilm forming bacterium respectively. To study the effect of EPS on the colloidal stability, HNP were amended with three increasing concentrations of EPS (20, 200 and 500 mg/l carbon) resulting in carbon:iron ratios 1:5, 2:1 and 5:1, respectively. The zeta potential (ZP), the shift in isoelectric point and the change in the critical coagulation concentration (CCC) for NaCl and CaCl2 showed formation of colloidally stable organo-mineral colloids at higher concentrations of EPS (200 mg/l and 500 mg/l of carbon, HNP2:1, HNP 5:1). However, lower concentrations of EPS (20 mg/l carbon, HNP 1:5) resulted into aggregation of HNP. The transport of uncoated and EPS-coated HNP colloids at environmental pH was studied with closed flow columns experiments in three different synthetic porous media, i.e., uncoated, biofilm-coated, and EPS-coated glass beads. No drastic change was observed in the pH and the electrical conductivity of the system during the transport experiments. However, a constant amount of organic matter and bacterial cells were continuously released from the porous media coatings. In the first scenario, positively charged uncoated HNP were immobile and retained in uncoated-glass bead porous media. Contrary, a mobile fraction of negatively charged HNP was observed in biofilms and EPS-coated porous media. The charge reversal of HNP during transport is due to adsorption of organic matter released from the coatings forming organomineral associations of HNP and components of the biofilm or EPS.'] ### GND ID: ['gnd:1123963029', 'gnd:36164-1', 'gnd:4004296-0', 'gnd:4164695-2', 'gnd:4232790-8', 'gnd:4443397-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877612218'] ### GND class: ['Narvekar, Sneha Pradip', 'Friedrich-Schiller-Universität Jena', 'Bakterien', 'Kolloid', 'Biofilm', 'Stofftransport (Biologie)'] <|eot_id|>
3A877741859.jsonld
['Micro and nanostructured lithium niobate for integrated nonlinear optics']
['The efficiency of nonlinear interaction processes in lithium niobate (LN) can be significantly enhanced by a confinement of the optical fields to waveguide or resonator modes. The functionalities of the optical elements strongly depend on their specific layout and can be implemented only with a sophisticated microstructure technology. This thesis, therefore, contributes to the advancement and development of existing patterning approaches and their application to the realization of microstructured waveguides and resonators. Especially the full potential of ion beam enhanced etching (IBEE) of LN is explored by the realization of advanced structures such as photonic crystals. Furthermore, a modified IBEE process which is based on KOH instead of HF is established after studying the etching behavior of ion beam irradiated LN in different hydroxide solutions for a broad range of experimental conditions. Substituting HF by KOH makes thin film LN substrates fully compatible with IBEE because KOH does not etch the intermediate silicon dioxide layer. IBEE is used in combination with electron beam lithography for large area patterning. In particular, it is used for the realization of nanoscale ridge waveguides and photonic crystal waveguides that are sufficiently long for the observation of propagation effects with a scanning near field optical microscope. In addition to IBEE, direct patterning of photonic structures by focused ion beam (FIB) is suitable for prototyping of small areas. The impact of gallium ion contaminations from the FIB milling, which remain in the substrate and impair the dimensional accuracy, is investigated. FIB patterning is eventually used to realize microdisk and photonic crystal resonators. Their linear and nonlinear optical characterization is presented, particularly the resonantly enhanced second harmonic generation from a photonic crystal resonator.']
['gnd:112211561X', 'gnd:36164-1', 'gnd:4065317-1', 'gnd:4162299-6', 'gnd:4167928-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877741859']
['Geiß, Reinhard', 'Friedrich-Schiller-Universität Jena', 'Wellenleiter', 'Ionenstrahlätzen', 'Lithiumniobat']
Document ### Title: ['Micro and nanostructured lithium niobate for integrated nonlinear optics'] ### Abstract: ['The efficiency of nonlinear interaction processes in lithium niobate (LN) can be significantly enhanced by a confinement of the optical fields to waveguide or resonator modes. The functionalities of the optical elements strongly depend on their specific layout and can be implemented only with a sophisticated microstructure technology. This thesis, therefore, contributes to the advancement and development of existing patterning approaches and their application to the realization of microstructured waveguides and resonators. Especially the full potential of ion beam enhanced etching (IBEE) of LN is explored by the realization of advanced structures such as photonic crystals. Furthermore, a modified IBEE process which is based on KOH instead of HF is established after studying the etching behavior of ion beam irradiated LN in different hydroxide solutions for a broad range of experimental conditions. Substituting HF by KOH makes thin film LN substrates fully compatible with IBEE because KOH does not etch the intermediate silicon dioxide layer. IBEE is used in combination with electron beam lithography for large area patterning. In particular, it is used for the realization of nanoscale ridge waveguides and photonic crystal waveguides that are sufficiently long for the observation of propagation effects with a scanning near field optical microscope. In addition to IBEE, direct patterning of photonic structures by focused ion beam (FIB) is suitable for prototyping of small areas. The impact of gallium ion contaminations from the FIB milling, which remain in the substrate and impair the dimensional accuracy, is investigated. FIB patterning is eventually used to realize microdisk and photonic crystal resonators. Their linear and nonlinear optical characterization is presented, particularly the resonantly enhanced second harmonic generation from a photonic crystal resonator.'] ### GND ID: ['gnd:112211561X', 'gnd:36164-1', 'gnd:4065317-1', 'gnd:4162299-6', 'gnd:4167928-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877741859'] ### GND class: ['Geiß, Reinhard', 'Friedrich-Schiller-Universität Jena', 'Wellenleiter', 'Ionenstrahlätzen', 'Lithiumniobat'] <|eot_id|>
3A877821593.jsonld
['Mathematical modelling of host-disease-drug interactions in HIV disease']
['The human immunodeficiency virus (HIV) has resisted nearly three decades of efforts targeting a cure. Sustained suppression of the virus has remained a challenge, mainly due to the remarkable evolutionary adaptation that the virus exhibits by the accumulation of drug-resistant mutations in its genome. Current therapeutic strategies aim at achieving and maintaining a low viral burden and typically involve multiple drugs. The choice of optimal combinations of these drugs is crucial, particularly in the background of treatment failure having occurred previously with certain other drugs. An understanding of the dynamics of viral mutant genotypes aids in the assessment of treatment failure with a certain drug combination, and exploring potential salvage treatment regimens. Mathematical models of viral dynamics have proved invaluable in understanding the viral life cycle and the impact of antiretroviral drugs. However, such models typically use simplified and coarse-grained mutation schemes, that curbs the extent of their application ...']
['gnd:1124105514', 'gnd:2120681-8', 'gnd:4114528-8', 'gnd:4200792-6', 'gnd:4798688-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877821593']
['Gopalakrishnan, Sathej', 'Universität Potsdam', 'Mathematisches Modell', 'HIV', 'Antiretrovirale Substanz']
Document ### Title: ['Mathematical modelling of host-disease-drug interactions in HIV disease'] ### Abstract: ['The human immunodeficiency virus (HIV) has resisted nearly three decades of efforts targeting a cure. Sustained suppression of the virus has remained a challenge, mainly due to the remarkable evolutionary adaptation that the virus exhibits by the accumulation of drug-resistant mutations in its genome. Current therapeutic strategies aim at achieving and maintaining a low viral burden and typically involve multiple drugs. The choice of optimal combinations of these drugs is crucial, particularly in the background of treatment failure having occurred previously with certain other drugs. An understanding of the dynamics of viral mutant genotypes aids in the assessment of treatment failure with a certain drug combination, and exploring potential salvage treatment regimens. Mathematical models of viral dynamics have proved invaluable in understanding the viral life cycle and the impact of antiretroviral drugs. However, such models typically use simplified and coarse-grained mutation schemes, that curbs the extent of their application ...'] ### GND ID: ['gnd:1124105514', 'gnd:2120681-8', 'gnd:4114528-8', 'gnd:4200792-6', 'gnd:4798688-8', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877821593'] ### GND class: ['Gopalakrishnan, Sathej', 'Universität Potsdam', 'Mathematisches Modell', 'HIV', 'Antiretrovirale Substanz'] <|eot_id|>
3A877834768.jsonld
['Thermokarst dynamics in central-eastern Beringia : insights from permafrost and lacustrine sediment cores']
['Widespread landscape changes are presently observed in the Arctic and are most likely to accelerate in the future, in particular in permafrost regions which are sensitive to climate warming. To assess current and future developments, it is crucial to understand past environmental dynamics in these landscapes. Causes and interactions of environmental variability can hardly be resolved by instrumental records covering modern time scales. However, long-term environmental variability is recorded in paleoenvironmental archives. Lake sediments are important archives that allow reconstruction of local limnogeological processes as well as past environmental changes driven directly or indirectly by climate dynamics. This study aims at reconstructing Late Quaternary permafrost and thermokarst dynamics in central-eastern Beringia, the terrestrial land mass connecting Eurasia and North America during glacial sea-level low stands. In order to investigate development, processes and influence of thermokarst dynamics, several sediment cores from…']
['gnd:1124109684', 'gnd:4002924-4', 'gnd:4129794-5', 'gnd:4173112-8', 'gnd:4344515-9', 'gnd:4346567-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877834768']
['Lenz, Josefine', 'Arktis', 'Dauerfrostboden', 'Paläoklimatologie', 'Erwärmung (Meteorologie)', 'Auftauen']
Document ### Title: ['Thermokarst dynamics in central-eastern Beringia : insights from permafrost and lacustrine sediment cores'] ### Abstract: ['Widespread landscape changes are presently observed in the Arctic and are most likely to accelerate in the future, in particular in permafrost regions which are sensitive to climate warming. To assess current and future developments, it is crucial to understand past environmental dynamics in these landscapes. Causes and interactions of environmental variability can hardly be resolved by instrumental records covering modern time scales. However, long-term environmental variability is recorded in paleoenvironmental archives. Lake sediments are important archives that allow reconstruction of local limnogeological processes as well as past environmental changes driven directly or indirectly by climate dynamics. This study aims at reconstructing Late Quaternary permafrost and thermokarst dynamics in central-eastern Beringia, the terrestrial land mass connecting Eurasia and North America during glacial sea-level low stands. In order to investigate development, processes and influence of thermokarst dynamics, several sediment cores from…'] ### GND ID: ['gnd:1124109684', 'gnd:4002924-4', 'gnd:4129794-5', 'gnd:4173112-8', 'gnd:4344515-9', 'gnd:4346567-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877834768'] ### GND class: ['Lenz, Josefine', 'Arktis', 'Dauerfrostboden', 'Paläoklimatologie', 'Erwärmung (Meteorologie)', 'Auftauen'] <|eot_id|>
3A877868573.jsonld
['Operative Produktions- und Instandhaltungsplanung : ein integrativer Planungsansatz']
['Losgrößenplanung, Abnutzungsfunktion, präventive Instandhaltung. - Lot-sizing, wear and tear function, preventive maintenance']
['gnd:1131105834', 'gnd:121396584', 'gnd:138533288', 'gnd:4047360-0', 'gnd:4200074-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877868573']
['Wolter, Anja', 'Helber, Stefan', 'Mettenheim, Hans-Jörg', 'Produktionsplanung', 'Instandhaltungsplanung', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Operative Produktions- und Instandhaltungsplanung : ein integrativer Planungsansatz'] ### Abstract: ['Losgrößenplanung, Abnutzungsfunktion, präventive Instandhaltung. - Lot-sizing, wear and tear function, preventive maintenance'] ### GND ID: ['gnd:1131105834', 'gnd:121396584', 'gnd:138533288', 'gnd:4047360-0', 'gnd:4200074-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877868573'] ### GND class: ['Wolter, Anja', 'Helber, Stefan', 'Mettenheim, Hans-Jörg', 'Produktionsplanung', 'Instandhaltungsplanung', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A877948410.jsonld
["Architecture and technology: Alvar Aalto's Paimio sanatorium"]
["In her study 'Architecture and Technology: Alvar Aalto?s Paimio Sanatorium', Marianna Heikinheimo, Master of Science (Architecture), Master of Arts (Fine Arts), analyses a building project, progressive for its time. She asks, how did Aalto manage to reconcile international ideology and local building culture in Finland where the degree of industrialisation in the building sector was relatively low in the early 1930s, and in what ways were the avant-gardist ideas translated into practical solutions? This book examines what happens to architecture during the process of planning and construction when the outcome is affected by several contributors and local circumstances. The study, within the field of architectural history, presents extensive empirical evidence, unveiling the roles of the client, the design engineers, building part manufacturers and contractors, as well as the professional tactics to which the architect resorted to achieve his objectives"]
['gnd:1125029668', 'gnd:118500023', 'gnd:4002851-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877948410']
['Heikinheimo, Marianna', 'Aalto, Alvar 1898-1976', 'Architektur']
Document ### Title: ["Architecture and technology: Alvar Aalto's Paimio sanatorium"] ### Abstract: ["In her study 'Architecture and Technology: Alvar Aalto?s Paimio Sanatorium', Marianna Heikinheimo, Master of Science (Architecture), Master of Arts (Fine Arts), analyses a building project, progressive for its time. She asks, how did Aalto manage to reconcile international ideology and local building culture in Finland where the degree of industrialisation in the building sector was relatively low in the early 1930s, and in what ways were the avant-gardist ideas translated into practical solutions? This book examines what happens to architecture during the process of planning and construction when the outcome is affected by several contributors and local circumstances. The study, within the field of architectural history, presents extensive empirical evidence, unveiling the roles of the client, the design engineers, building part manufacturers and contractors, as well as the professional tactics to which the architect resorted to achieve his objectives"] ### GND ID: ['gnd:1125029668', 'gnd:118500023', 'gnd:4002851-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A877948410'] ### GND class: ['Heikinheimo, Marianna', 'Aalto, Alvar 1898-1976', 'Architektur'] <|eot_id|>
3A878038124.jsonld
['The scientification of the "Jewish question" in Nazi Germany']
['"The Scientification of the "Jewish Question" under National Socialism describes the attempt of a considerable number of German scholars to counter the vanishing influence of religious prejudices against the Jews with a new antisemitic rationale. As anti-Jewish stereotypes of an old-fashioned soteriological kind had become dysfunctional under the pressure of secularization, a new, more objective explanation was needed to justify the age-old danger of Judaism in the present. In the 1930s a new research field called "Judenforschung" (Jew research) emerged. Its leading figures amalgamated racial and religious features to verify the existence of an everlasting "Jewish problem". Along with that they offered scholarly concepts for its solution"--']
['gnd:121299430', 'gnd:4002333-3', 'gnd:4011882-4', 'gnd:4013021-6', 'gnd:4017894-8', 'gnd:4072560-1', 'gnd:4114087-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878038124']
['Junginger, Horst', 'Antisemitismus', 'Deutschland', 'Drittes Reich', 'Forschung', 'Hochschule', 'Judentum']
Document ### Title: ['The scientification of the "Jewish question" in Nazi Germany'] ### Abstract: ['"The Scientification of the "Jewish Question" under National Socialism describes the attempt of a considerable number of German scholars to counter the vanishing influence of religious prejudices against the Jews with a new antisemitic rationale. As anti-Jewish stereotypes of an old-fashioned soteriological kind had become dysfunctional under the pressure of secularization, a new, more objective explanation was needed to justify the age-old danger of Judaism in the present. In the 1930s a new research field called "Judenforschung" (Jew research) emerged. Its leading figures amalgamated racial and religious features to verify the existence of an everlasting "Jewish problem". Along with that they offered scholarly concepts for its solution"--'] ### GND ID: ['gnd:121299430', 'gnd:4002333-3', 'gnd:4011882-4', 'gnd:4013021-6', 'gnd:4017894-8', 'gnd:4072560-1', 'gnd:4114087-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878038124'] ### GND class: ['Junginger, Horst', 'Antisemitismus', 'Deutschland', 'Drittes Reich', 'Forschung', 'Hochschule', 'Judentum'] <|eot_id|>
3A878128069.jsonld
['Consequences of rainforest conversion to smallholder rubber and oil palm plantations on soil trace gas fluxes from highly weathered soils in Sumatra, Indonesia']
['In Sumatra, Indonesia, the establishment of oil palm and rubber plantations is widespread. However, it occurs at the expense of forest area. Since global demand for palm oil and rubber is increasing, forest conversion is expected to continue. Furthermore, studies have shown that forest destruction and the establishment of agricultural land uses influence the soil–atmosphere exchange of the climate-relevant trace gases carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and nitric oxide (NO). Nevertheless, trace gas measurements from oil palm and rubber plantations are scarce. Additiona...']
['gnd:4058586-4', 'gnd:4136101-5', 'gnd:4136213-5', 'gnd:4164566-2', 'gnd:4172434-3', 'gnd:4182608-5', 'gnd:4183288-7', 'gnd:4479487-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878128069']
['Sumatra', 'Gasaustausch', 'Plantage', 'Kohlenstoffverbindungen', 'Ölpalme', 'Spurengas', 'Stickstoffverbindungen', 'Kautschukplantage']
Document ### Title: ['Consequences of rainforest conversion to smallholder rubber and oil palm plantations on soil trace gas fluxes from highly weathered soils in Sumatra, Indonesia'] ### Abstract: ['In Sumatra, Indonesia, the establishment of oil palm and rubber plantations is widespread. However, it occurs at the expense of forest area. Since global demand for palm oil and rubber is increasing, forest conversion is expected to continue. Furthermore, studies have shown that forest destruction and the establishment of agricultural land uses influence the soil–atmosphere exchange of the climate-relevant trace gases carbon dioxide (CO2), methane (CH4), nitrous oxide (N2O) and nitric oxide (NO). Nevertheless, trace gas measurements from oil palm and rubber plantations are scarce. Additiona...'] ### GND ID: ['gnd:4058586-4', 'gnd:4136101-5', 'gnd:4136213-5', 'gnd:4164566-2', 'gnd:4172434-3', 'gnd:4182608-5', 'gnd:4183288-7', 'gnd:4479487-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878128069'] ### GND class: ['Sumatra', 'Gasaustausch', 'Plantage', 'Kohlenstoffverbindungen', 'Ölpalme', 'Spurengas', 'Stickstoffverbindungen', 'Kautschukplantage'] <|eot_id|>
3A878771905.jsonld
['Integrated structural analysis using isogeometric finite element methods']
['The gradual digitization in the architecture, engineering, and construction industry over the past fifty years led to an extremely heterogeneous software environment, which today is embodied by the multitude of different digital tools and proprietary data formats used by the many specialists contributing to the design process in a construction project. Though these projects become increasingly complex, the demands on financial efficiency and the completion within a tight schedule grow at the same time. The digital collaboration of project partners has been identified as one key issue in successfully dealing with these challenges. Yet currently, the numerous software applications and their respective individual views on the design process severely impede that collaboration. An approach to establish a unified basis for the digital collaboration, regardless of the existing software heterogeneity, is a comprehensive digital building model contributed to by all projects partners. This type of data management known as building information modeling (BIM) has many benefits, yet its adoption is associated with many difficulties and thus, proceeds only slowly. One aspect in the field of conflicting requirements on such a digital model is the cooperation of architects and structural engineers. Traditionally, these two disciplines use different abstractions of reality for their models that in consequence lead to incompatible digital representations thereof. The onset of isogeometric analysis (IGA) promised to ease the discrepancy in design and analysis model representations. Yet, that initial focus quickly shifted towards using these methods as a more powerful basis for numerical simulations. Furthermore, the isogeometric representation alone is not capable of solving the model abstraction problem. It is thus the intention of this work to contribute to an improved digital collaboration of architects and engineers by exploring an integrated analysis approach on the basis of an unified digital model and solid geometry expressed by splines. In the course of this work, an analysis framework is developed that utilizes such models to automatically conduct numerical simulations commonly required in construction projects. In essence, this allows to retrieve structural analysis results from BIM models in a fast and simple manner, thereby facilitating rapid design iterations and profound design feedback. The BIM implementation Industry Foundation Classes (IFC) is reviewed with regard to its capabilities of representing the unified model. The current IFC schema strongly supports the use of redundant model data, a major pitfall in digital collaboration. Additionally, it does not allow to describe the geometry by volumetric splines. As the pursued approach builds upon a unique model for both, architectural and structural design, and furthermore requires solid geometry, necessary schema modifications are suggested. Structural entities are modeled by volumetric NURBS patches, each of which constitutes an individual subdomain that, with regard to the analysis, is incompatible with the remaining full model. The resulting consequences for numerical simulation are elaborated in this work. The individual subdomains have to be weakly coupled, for which the mortar method is used. Different approaches to discretize the interface traction fields are implemented and their respective impact on the analysis results is evaluated. All necessary coupling conditions are automatically derived from the related geometry model. The weak coupling procedure leads to a linear system of equations in saddle point form, which, owed to the volumetric modeling, is large in size and, the associated coefficient matrix has, due to the use of higher degree basis functions, a high bandwidth. The peculiarities of the system require adapted solution methods that generally cause higher numerical costs than the standard procedures for symmetric, positive-definite systems do. Different methods to solve the specific system are investigated and an efficient parallel algorithm is finally proposed. When the structural analysis model is derived from the unified model in the BIM data, it does in general initially not meet the requirements on the discretization that are necessary to obtain sufficiently accurate analysis results. The consequently necessary patch refinements must be controlled automatically to allowfor an entirely automatic analysis procedure. For that purpose, an empirical refinement scheme based on the geometrical and possibly mechanical properties of the specific entities is proposed. The level of refinement may be selectively manipulated by the structural engineer in charge. Furthermore, a Zienkiewicz-Zhu type error estimator is adapted for the use with isogeometric analysis results. It is shown that also this estimator can be used to steer an adaptive refinement procedure.']
['gnd:1030375127', 'gnd:103573382X', 'gnd:1124633405', 'gnd:131937685', 'gnd:4060592-9', 'gnd:4376916-0', 'gnd:5180842-0', 'gnd:7718401-4', 'gnd:7861550-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878771905']
['Beucke, Karl', 'Könke, Carsten', 'Schwedler, Michael', 'Rank, Ernst', 'Tragwerk', 'NURBS', 'Bauhaus-Universität Weimar', 'Isogeometrische Analyse', 'Building Information Modeling']
Document ### Title: ['Integrated structural analysis using isogeometric finite element methods'] ### Abstract: ['The gradual digitization in the architecture, engineering, and construction industry over the past fifty years led to an extremely heterogeneous software environment, which today is embodied by the multitude of different digital tools and proprietary data formats used by the many specialists contributing to the design process in a construction project. Though these projects become increasingly complex, the demands on financial efficiency and the completion within a tight schedule grow at the same time. The digital collaboration of project partners has been identified as one key issue in successfully dealing with these challenges. Yet currently, the numerous software applications and their respective individual views on the design process severely impede that collaboration. An approach to establish a unified basis for the digital collaboration, regardless of the existing software heterogeneity, is a comprehensive digital building model contributed to by all projects partners. This type of data management known as building information modeling (BIM) has many benefits, yet its adoption is associated with many difficulties and thus, proceeds only slowly. One aspect in the field of conflicting requirements on such a digital model is the cooperation of architects and structural engineers. Traditionally, these two disciplines use different abstractions of reality for their models that in consequence lead to incompatible digital representations thereof. The onset of isogeometric analysis (IGA) promised to ease the discrepancy in design and analysis model representations. Yet, that initial focus quickly shifted towards using these methods as a more powerful basis for numerical simulations. Furthermore, the isogeometric representation alone is not capable of solving the model abstraction problem. It is thus the intention of this work to contribute to an improved digital collaboration of architects and engineers by exploring an integrated analysis approach on the basis of an unified digital model and solid geometry expressed by splines. In the course of this work, an analysis framework is developed that utilizes such models to automatically conduct numerical simulations commonly required in construction projects. In essence, this allows to retrieve structural analysis results from BIM models in a fast and simple manner, thereby facilitating rapid design iterations and profound design feedback. The BIM implementation Industry Foundation Classes (IFC) is reviewed with regard to its capabilities of representing the unified model. The current IFC schema strongly supports the use of redundant model data, a major pitfall in digital collaboration. Additionally, it does not allow to describe the geometry by volumetric splines. As the pursued approach builds upon a unique model for both, architectural and structural design, and furthermore requires solid geometry, necessary schema modifications are suggested. Structural entities are modeled by volumetric NURBS patches, each of which constitutes an individual subdomain that, with regard to the analysis, is incompatible with the remaining full model. The resulting consequences for numerical simulation are elaborated in this work. The individual subdomains have to be weakly coupled, for which the mortar method is used. Different approaches to discretize the interface traction fields are implemented and their respective impact on the analysis results is evaluated. All necessary coupling conditions are automatically derived from the related geometry model. The weak coupling procedure leads to a linear system of equations in saddle point form, which, owed to the volumetric modeling, is large in size and, the associated coefficient matrix has, due to the use of higher degree basis functions, a high bandwidth. The peculiarities of the system require adapted solution methods that generally cause higher numerical costs than the standard procedures for symmetric, positive-definite systems do. Different methods to solve the specific system are investigated and an efficient parallel algorithm is finally proposed. When the structural analysis model is derived from the unified model in the BIM data, it does in general initially not meet the requirements on the discretization that are necessary to obtain sufficiently accurate analysis results. The consequently necessary patch refinements must be controlled automatically to allowfor an entirely automatic analysis procedure. For that purpose, an empirical refinement scheme based on the geometrical and possibly mechanical properties of the specific entities is proposed. The level of refinement may be selectively manipulated by the structural engineer in charge. Furthermore, a Zienkiewicz-Zhu type error estimator is adapted for the use with isogeometric analysis results. It is shown that also this estimator can be used to steer an adaptive refinement procedure.'] ### GND ID: ['gnd:1030375127', 'gnd:103573382X', 'gnd:1124633405', 'gnd:131937685', 'gnd:4060592-9', 'gnd:4376916-0', 'gnd:5180842-0', 'gnd:7718401-4', 'gnd:7861550-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878771905'] ### GND class: ['Beucke, Karl', 'Könke, Carsten', 'Schwedler, Michael', 'Rank, Ernst', 'Tragwerk', 'NURBS', 'Bauhaus-Universität Weimar', 'Isogeometrische Analyse', 'Building Information Modeling'] <|eot_id|>
3A878827161.jsonld
['Essays on the consequences of the European Eastern integration process on border regions in the EU-15']
["Border regions, European integration, firms' spatial cooperation patterns. - Grenzregionen, europäische Integration, räumliche Kooperationsmuster von Firmen"]
['gnd:1131106067', 'gnd:4021993-8', 'gnd:4033178-7', 'gnd:4066438-7', 'gnd:4071013-0', 'gnd:4077575-6', 'gnd:4078604-3', 'gnd:4128080-5', 'gnd:5098525-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878827161']
['Wassmann, Pia', 'Grenzgebiet', 'Kriminalität', 'Wirtschaftsentwicklung', 'Europäische Integration', 'Soziale Situation', 'Unternehmenskooperation', 'Erweiterung', 'Europäische Union', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Essays on the consequences of the European Eastern integration process on border regions in the EU-15'] ### Abstract: ["Border regions, European integration, firms' spatial cooperation patterns. - Grenzregionen, europäische Integration, räumliche Kooperationsmuster von Firmen"] ### GND ID: ['gnd:1131106067', 'gnd:4021993-8', 'gnd:4033178-7', 'gnd:4066438-7', 'gnd:4071013-0', 'gnd:4077575-6', 'gnd:4078604-3', 'gnd:4128080-5', 'gnd:5098525-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878827161'] ### GND class: ['Wassmann, Pia', 'Grenzgebiet', 'Kriminalität', 'Wirtschaftsentwicklung', 'Europäische Integration', 'Soziale Situation', 'Unternehmenskooperation', 'Erweiterung', 'Europäische Union', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A878904360.jsonld
['Quality by design and process analytical technology zur Herstellung bioaktiver Proteine']
['Process analytical technology, quality by design, industrielle Enzymproduktion, industrial enzyme production']
['gnd:1069292419', 'gnd:112803741', 'gnd:4047521-9', 'gnd:4135411-4', 'gnd:4136607-4', 'gnd:4273049-1', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878904360']
['Scheper, Thomas', 'Hitzmann, Bernd', 'Proteasen', 'Infrarotspektroskopie', 'Prozessanalyse', 'Botulinus-A-Toxin', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Quality by design and process analytical technology zur Herstellung bioaktiver Proteine'] ### Abstract: ['Process analytical technology, quality by design, industrielle Enzymproduktion, industrial enzyme production'] ### GND ID: ['gnd:1069292419', 'gnd:112803741', 'gnd:4047521-9', 'gnd:4135411-4', 'gnd:4136607-4', 'gnd:4273049-1', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A878904360'] ### GND class: ['Scheper, Thomas', 'Hitzmann, Bernd', 'Proteasen', 'Infrarotspektroskopie', 'Prozessanalyse', 'Botulinus-A-Toxin', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A879179759.jsonld
['Tissue and population-level diversity in plant secondary metabolism : a systematic exploration using MS/MS structural analysis']
['Plants are amazing synthetic chemists that create diversified secondary metabolites which play myriad ecological roles for their survival and reproductive fitness in nature. The structural complexity of secondary metabolism has severely hampered its functional analysis. The potential of MS-based metabolomics and of the large-scale acquisition of tandem MS (MS/MS) spectra is limited by the absence of straightforward classification and visualization pipelines so that secondary metabolite and the underlying pathway interpretations can be easily made. From a mechanistic standpoint, secondary metabolism diversity attributes to the occurrence of multiplicity of genes in plant genomes. Yet the majorities of metabolic gene functions remain however unknown. In this thesis, I developed a workflow to systematically explore the diversity of secondary metabolism in Nicotiana attenuata – a metabolically rich ecological model plant. I first characterize the metabolic space of this model plant using the large-scale acquisition of MS/MS spectral information in a data-independent manner and the computational re-assembly of non-redundant MS/MS spectra. The resulting MS signatures were then aligned and visualized to rapidly formulate structural hypotheses. Using natural variation, I examined the correlations among jasmonate signaling and large-scale defense metabolism. The resulting correlation maps uncovered new metabolic layers in a plant’s jasmonate-mediated defensive arsenal. In the tissue-level exploration of secondary metabolite diversity, Transciptomic and metabolomic information and their variance as analyzed by information theory were used for the predictions of tissue-specific function of genes responsible for the metabolic signatures.']
['gnd:1124709711', 'gnd:36164-1', 'gnd:4045539-7', 'gnd:4207952-4', 'gnd:4300564-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879179759']
['Li, Dapeng', 'Friedrich-Schiller-Universität Jena', 'Pflanzen', 'Tandem-Massenspektrometrie', 'Sekundärmetabolit']
Document ### Title: ['Tissue and population-level diversity in plant secondary metabolism : a systematic exploration using MS/MS structural analysis'] ### Abstract: ['Plants are amazing synthetic chemists that create diversified secondary metabolites which play myriad ecological roles for their survival and reproductive fitness in nature. The structural complexity of secondary metabolism has severely hampered its functional analysis. The potential of MS-based metabolomics and of the large-scale acquisition of tandem MS (MS/MS) spectra is limited by the absence of straightforward classification and visualization pipelines so that secondary metabolite and the underlying pathway interpretations can be easily made. From a mechanistic standpoint, secondary metabolism diversity attributes to the occurrence of multiplicity of genes in plant genomes. Yet the majorities of metabolic gene functions remain however unknown. In this thesis, I developed a workflow to systematically explore the diversity of secondary metabolism in Nicotiana attenuata – a metabolically rich ecological model plant. I first characterize the metabolic space of this model plant using the large-scale acquisition of MS/MS spectral information in a data-independent manner and the computational re-assembly of non-redundant MS/MS spectra. The resulting MS signatures were then aligned and visualized to rapidly formulate structural hypotheses. Using natural variation, I examined the correlations among jasmonate signaling and large-scale defense metabolism. The resulting correlation maps uncovered new metabolic layers in a plant’s jasmonate-mediated defensive arsenal. In the tissue-level exploration of secondary metabolite diversity, Transciptomic and metabolomic information and their variance as analyzed by information theory were used for the predictions of tissue-specific function of genes responsible for the metabolic signatures.'] ### GND ID: ['gnd:1124709711', 'gnd:36164-1', 'gnd:4045539-7', 'gnd:4207952-4', 'gnd:4300564-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879179759'] ### GND class: ['Li, Dapeng', 'Friedrich-Schiller-Universität Jena', 'Pflanzen', 'Tandem-Massenspektrometrie', 'Sekundärmetabolit'] <|eot_id|>
3A879182563.jsonld
['Characterization of macromolecular systems by mass spectrometry and hyphenated techniques']
['The focus of this thesis was to gain in-depth structural information of synthetic polymers by the application of several combined techniques. The second chapter provides an overview about the influence of the polymer architecture on its characterization by mass spectrometry and complementary methods. In the third chapter, we demonstrate the use of MS, more specifically MALDI-ToF MS, which provides molar masses and dispersity values for poly(furfuryl glycidyl ether) (PFGE). The second example is the study of poly(N-isopropyl acrylamide) (PNiPAm) copolymers with glyco-monomers with specific combinations of matrices and cationization agents. The fourth chapter will combine three different examples regarding linear, star-shaped and hybrid polymers, which were analyzed by advanced techniques. The linear copolymers were analyzed by separating them according to their chemical heterogeneity using liquid absorption chromatography at critical conditions (LACCC) of poly(2-ethyl-2-oxazoline) (PEtOx), followed by automated spotting onto a MALDI target, which was subsequently analyzed by MALDI. Secondly, star-shaped polymers: [poly(ethylene oxide) (PEO)-b-PEtOx]8 were monitored firstly by using LACCC of linear PEO as first separation dimension and furthermore injected onto an SEC column confirming the molar mass. Lastly, a hybrid PEO star-shaped polymer was investigated using MALDI to verify the complete functionality of the core with PEO arms. Finally, the last chapter will focus on the creation of a software to obtain information regarding average composition, overcoming isotopic, overlapping peaks and isobaric species from MS spectra. Moreover, the quantitative studies were carried out by correction of the mass discrimination and isotopic abundance. Consequently, advanced analytical techniques such as different ionization techniques within MS, a range of chromatographic hyphenation and computational methods are implemented for elucidating the complexity of synthetic polymers.']
['gnd:1124709509', 'gnd:36164-1', 'gnd:4009840-0', 'gnd:4046699-1', 'gnd:4586449-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879182563']
['Crotty, Sarah Charlotte', 'Friedrich-Schiller-Universität Jena', 'Chemische Analyse', 'Polymere', 'MALDI-MS']
Document ### Title: ['Characterization of macromolecular systems by mass spectrometry and hyphenated techniques'] ### Abstract: ['The focus of this thesis was to gain in-depth structural information of synthetic polymers by the application of several combined techniques. The second chapter provides an overview about the influence of the polymer architecture on its characterization by mass spectrometry and complementary methods. In the third chapter, we demonstrate the use of MS, more specifically MALDI-ToF MS, which provides molar masses and dispersity values for poly(furfuryl glycidyl ether) (PFGE). The second example is the study of poly(N-isopropyl acrylamide) (PNiPAm) copolymers with glyco-monomers with specific combinations of matrices and cationization agents. The fourth chapter will combine three different examples regarding linear, star-shaped and hybrid polymers, which were analyzed by advanced techniques. The linear copolymers were analyzed by separating them according to their chemical heterogeneity using liquid absorption chromatography at critical conditions (LACCC) of poly(2-ethyl-2-oxazoline) (PEtOx), followed by automated spotting onto a MALDI target, which was subsequently analyzed by MALDI. Secondly, star-shaped polymers: [poly(ethylene oxide) (PEO)-b-PEtOx]8 were monitored firstly by using LACCC of linear PEO as first separation dimension and furthermore injected onto an SEC column confirming the molar mass. Lastly, a hybrid PEO star-shaped polymer was investigated using MALDI to verify the complete functionality of the core with PEO arms. Finally, the last chapter will focus on the creation of a software to obtain information regarding average composition, overcoming isotopic, overlapping peaks and isobaric species from MS spectra. Moreover, the quantitative studies were carried out by correction of the mass discrimination and isotopic abundance. Consequently, advanced analytical techniques such as different ionization techniques within MS, a range of chromatographic hyphenation and computational methods are implemented for elucidating the complexity of synthetic polymers.'] ### GND ID: ['gnd:1124709509', 'gnd:36164-1', 'gnd:4009840-0', 'gnd:4046699-1', 'gnd:4586449-4', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879182563'] ### GND class: ['Crotty, Sarah Charlotte', 'Friedrich-Schiller-Universität Jena', 'Chemische Analyse', 'Polymere', 'MALDI-MS'] <|eot_id|>
3A879211725.jsonld
['Der Stiftungsvorstand bei der Vermögensverwaltung : Haftung, Bedeutung der Gemeinnützigkeit, Gestaltungsmöglichkeiten']
[['The asset management is an indispensable and pre-conditional condition for its long-term existence and successful foundation work, especially for charitable foundations. Against the backdrop of the low-interest phase, which has now been going on for years, many board members are forced to open up more complex and risk-protected forms of investment, beyond the conservative or even secondary investment opportunities.The work examines, in particular, the extent to which the liability of the board of trustees must be appropriate and points out guidelines for asset management in foundations. The protection of the foundation as an autonomous fortune is of particular importance for dogmatic as well as for practical reasons. The work questions, among other things, the ways of reducing the liability risks of foundations, which is the subject of the foundation law as well as by the legislature, and calls on the greater professionalization of the decision-makers in the foundation, especially for the great majority of small and small foundations.', 'Die Vermögensverwaltung ist insbesondere für gemeinnützige Stiftungen eine unabdingbare und vorgreifliche Bedingung für ihren dauerhaften Bestand und eine erfolgreiche Stiftungsarbeit. Vor dem Hintergrund der nunmehr seit Jahren anhaltenden Niedrigzinsphase, sehen sich viele Stiftungsvorstände gezwungen, sich komplexeren und risikoreicheren Anlageformen zu öffnen, jenseits der konservativen oder sogar mündelsicheren Anlagemöglichkeiten.Die Arbeit untersucht insbesondere, nach welchen Maßstäben sich die Haftung des Stiftungsvorstands richten muss, und möchte Leitlinien für die Vermögensverwaltung in Stiftungen aufzeigen. Dabei kommt dem Schutz der Stiftung als verselbstständigte Vermögensmasse sowohl aus dogmatischen als auch aus praktischen Gründen eine besondere Bedeutung zu. Die Arbeit hinterfragt unter anderem die im stiftungsrechtlichen Schrifttum sowie von Seiten des Gesetzgebers beschrittenen Wege zur Reduzierung der Haftungsrisiken von Stiftungsvorständen und fordert gerade für die große Mehrheit der kleineren und kleinen Stiftungen eine höhere Professionalisierung der Entscheidungsträger in der Stiftung.']]
['gnd:1029605-0', 'gnd:1126528064', 'gnd:124608477', 'gnd:4011882-4', 'gnd:4022898-8', 'gnd:4057542-1', 'gnd:4063089-4', 'gnd:4064030-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879211725']
['Universität Bayreuth', 'Holtwiesche, Marian Fabio', 'Lange, Knut Werner', 'Deutschland', 'Haftung', 'Stiftung', 'Vermögensverwaltung', 'Vorstand']
Document ### Title: ['Der Stiftungsvorstand bei der Vermögensverwaltung : Haftung, Bedeutung der Gemeinnützigkeit, Gestaltungsmöglichkeiten'] ### Abstract: [['The asset management is an indispensable and pre-conditional condition for its long-term existence and successful foundation work, especially for charitable foundations. Against the backdrop of the low-interest phase, which has now been going on for years, many board members are forced to open up more complex and risk-protected forms of investment, beyond the conservative or even secondary investment opportunities.The work examines, in particular, the extent to which the liability of the board of trustees must be appropriate and points out guidelines for asset management in foundations. The protection of the foundation as an autonomous fortune is of particular importance for dogmatic as well as for practical reasons. The work questions, among other things, the ways of reducing the liability risks of foundations, which is the subject of the foundation law as well as by the legislature, and calls on the greater professionalization of the decision-makers in the foundation, especially for the great majority of small and small foundations.', 'Die Vermögensverwaltung ist insbesondere für gemeinnützige Stiftungen eine unabdingbare und vorgreifliche Bedingung für ihren dauerhaften Bestand und eine erfolgreiche Stiftungsarbeit. Vor dem Hintergrund der nunmehr seit Jahren anhaltenden Niedrigzinsphase, sehen sich viele Stiftungsvorstände gezwungen, sich komplexeren und risikoreicheren Anlageformen zu öffnen, jenseits der konservativen oder sogar mündelsicheren Anlagemöglichkeiten.Die Arbeit untersucht insbesondere, nach welchen Maßstäben sich die Haftung des Stiftungsvorstands richten muss, und möchte Leitlinien für die Vermögensverwaltung in Stiftungen aufzeigen. Dabei kommt dem Schutz der Stiftung als verselbstständigte Vermögensmasse sowohl aus dogmatischen als auch aus praktischen Gründen eine besondere Bedeutung zu. Die Arbeit hinterfragt unter anderem die im stiftungsrechtlichen Schrifttum sowie von Seiten des Gesetzgebers beschrittenen Wege zur Reduzierung der Haftungsrisiken von Stiftungsvorständen und fordert gerade für die große Mehrheit der kleineren und kleinen Stiftungen eine höhere Professionalisierung der Entscheidungsträger in der Stiftung.']] ### GND ID: ['gnd:1029605-0', 'gnd:1126528064', 'gnd:124608477', 'gnd:4011882-4', 'gnd:4022898-8', 'gnd:4057542-1', 'gnd:4063089-4', 'gnd:4064030-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879211725'] ### GND class: ['Universität Bayreuth', 'Holtwiesche, Marian Fabio', 'Lange, Knut Werner', 'Deutschland', 'Haftung', 'Stiftung', 'Vermögensverwaltung', 'Vorstand'] <|eot_id|>
3A879220821.jsonld
['Bürgerbeteiligung und demokratische Legitimation : Erscheinungsformen von Bürgerbeteiligung auf kommunaler Ebene und ihr Aufwertungspotenzial aus legitimatorischer Sicht']
[['Citizen participation ranks high again on the political agenda. It is demanded that citizens should be more extensively involved in state decision-making processes. At the same time interactive communication and web-based participation tools become increasingly important.The thesis examines whether and to what extent the participatory instruments on the local level can be intensified or upgraded within the bounds of the constitutional principle of democratic legitimacy. Conventional instruments were surveyed as well as somehow new participation tools as for example participatory budgeting.', 'Bürgerbeteiligung steht wieder auf der politischen Agenda. Nach Auseinandersetzungen um verschiedene Großprojekte ertönt der Ruf nach einer intensiveren Einbindung von Bürgern in staatliche Entscheidungsprozesse. Internetgestützte Beteiligungsverfahren erfahren dabei im Zuge der fortschreitenden Digitalisierung einen signifikanten Bedeutungszuwachs.Die Arbeit untersucht für den kommunalen Bereich, inwieweit eine Aufwertung der dortigen Bürgerbeteiligungsinstrumente erfolgen kann, die zugleich den Prämissen des Gebots demokratischer Legitimation gerecht wird. Dabei werden erstmals neben im Gesetz normierten Formen von Bürgerbeteiligung auch neu hinzugetretene, nicht gesetzlich geregelte Instrumente wie z. B. der sog. Bürgerhaushalt in den Blick genommen. An die Aufarbeitung der legitimatorischen Ausgangsbedingungen auf kommunaler Ebene schließt sich eine exemplifizierte Analyse etwaigen Aufwertungspotenzials unter besonderer Berücksichtigung rechtlicher Steuerungsmechanismen an.']]
['gnd:1027695906', 'gnd:115664920', 'gnd:2024175-6', 'gnd:4008767-0', 'gnd:4011882-4', 'gnd:4019956-3', 'gnd:4114382-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879220821']
['Tischer, Jakob', 'Schliesky, Utz', 'Christian-Albrechts-Universität zu Kiel', 'Bürgerbeteiligung', 'Deutschland', 'Gemeinde', 'Legitimation']
Document ### Title: ['Bürgerbeteiligung und demokratische Legitimation : Erscheinungsformen von Bürgerbeteiligung auf kommunaler Ebene und ihr Aufwertungspotenzial aus legitimatorischer Sicht'] ### Abstract: [['Citizen participation ranks high again on the political agenda. It is demanded that citizens should be more extensively involved in state decision-making processes. At the same time interactive communication and web-based participation tools become increasingly important.The thesis examines whether and to what extent the participatory instruments on the local level can be intensified or upgraded within the bounds of the constitutional principle of democratic legitimacy. Conventional instruments were surveyed as well as somehow new participation tools as for example participatory budgeting.', 'Bürgerbeteiligung steht wieder auf der politischen Agenda. Nach Auseinandersetzungen um verschiedene Großprojekte ertönt der Ruf nach einer intensiveren Einbindung von Bürgern in staatliche Entscheidungsprozesse. Internetgestützte Beteiligungsverfahren erfahren dabei im Zuge der fortschreitenden Digitalisierung einen signifikanten Bedeutungszuwachs.Die Arbeit untersucht für den kommunalen Bereich, inwieweit eine Aufwertung der dortigen Bürgerbeteiligungsinstrumente erfolgen kann, die zugleich den Prämissen des Gebots demokratischer Legitimation gerecht wird. Dabei werden erstmals neben im Gesetz normierten Formen von Bürgerbeteiligung auch neu hinzugetretene, nicht gesetzlich geregelte Instrumente wie z. B. der sog. Bürgerhaushalt in den Blick genommen. An die Aufarbeitung der legitimatorischen Ausgangsbedingungen auf kommunaler Ebene schließt sich eine exemplifizierte Analyse etwaigen Aufwertungspotenzials unter besonderer Berücksichtigung rechtlicher Steuerungsmechanismen an.']] ### GND ID: ['gnd:1027695906', 'gnd:115664920', 'gnd:2024175-6', 'gnd:4008767-0', 'gnd:4011882-4', 'gnd:4019956-3', 'gnd:4114382-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879220821'] ### GND class: ['Tischer, Jakob', 'Schliesky, Utz', 'Christian-Albrechts-Universität zu Kiel', 'Bürgerbeteiligung', 'Deutschland', 'Gemeinde', 'Legitimation'] <|eot_id|>
3A879345403.jsonld
['Entwicklung eines in situ Sensors zur Messung der metabolischen Aktivität in Bioprozessen']
['Bioprozessüberwachung, in situ spezifische Sauerstoffaufnahmerate, Sensor Systeme. - Bioprocess monitoring, in situ specific oxygen uptake rate, sensor systems']
['gnd:1069292419', 'gnd:112803741', 'gnd:4038824-4', 'gnd:4051803-6', 'gnd:4173433-6', 'gnd:4293230-0', 'gnd:4307166-1', 'gnd:4381412-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879345403']
['Scheper, Thomas', 'Hitzmann, Bernd', 'Sensor', 'Sauerstoff', 'Partialdruck', 'In situ', 'Bioverfahrenstechnik', 'Optode', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Entwicklung eines in situ Sensors zur Messung der metabolischen Aktivität in Bioprozessen'] ### Abstract: ['Bioprozessüberwachung, in situ spezifische Sauerstoffaufnahmerate, Sensor Systeme. - Bioprocess monitoring, in situ specific oxygen uptake rate, sensor systems'] ### GND ID: ['gnd:1069292419', 'gnd:112803741', 'gnd:4038824-4', 'gnd:4051803-6', 'gnd:4173433-6', 'gnd:4293230-0', 'gnd:4307166-1', 'gnd:4381412-8', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879345403'] ### GND class: ['Scheper, Thomas', 'Hitzmann, Bernd', 'Sensor', 'Sauerstoff', 'Partialdruck', 'In situ', 'Bioverfahrenstechnik', 'Optode', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A879429208.jsonld
['Stem growth regulation by molecular breeding in Kalanchoe͏̈ blossfeldiana and Petunia hybrida']
['Salicylic acid, gibberellic acid, compact phenotype. - Salicylsäure, Gibberellinsäure, kompakter Phänotyp']
['gnd:133873595', 'gnd:4056571-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879429208']
['Maiß, Edgar', 'Spross', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Stem growth regulation by molecular breeding in Kalanchoe͏̈ blossfeldiana and Petunia hybrida'] ### Abstract: ['Salicylic acid, gibberellic acid, compact phenotype. - Salicylsäure, Gibberellinsäure, kompakter Phänotyp'] ### GND ID: ['gnd:133873595', 'gnd:4056571-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879429208'] ### GND class: ['Maiß, Edgar', 'Spross', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A879907517.jsonld
['Fourier-Transform-Spektroskopie an zweiatomigen Molekülen gebildet aus Alkali- und/oder Erdalkaliatomen']
['Fourier-Transform-Spektroskopie, zweiatomige Moleküle, Entstörung. - Fourier transform spectroscopy, diatomic molecules, deperturbation']
['gnd:4135413-8', 'gnd:4141130-4', 'gnd:4141882-7', 'gnd:4166806-6', 'gnd:4191214-7', 'gnd:4263453-2', 'gnd:4287503-1', 'gnd:4390975-9', 'gnd:4606572-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879907517']
['Fourier-Spektroskopie', 'Absorptionsspektrum', 'Alkaliatom', 'Laserinduzierte Fluoreszenz', 'Zweiatomiges Molekül', 'Elektronenzustand', 'Hochauflösendes Verfahren', 'Erdalkaliatom', 'Streulänge', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Fourier-Transform-Spektroskopie an zweiatomigen Molekülen gebildet aus Alkali- und/oder Erdalkaliatomen'] ### Abstract: ['Fourier-Transform-Spektroskopie, zweiatomige Moleküle, Entstörung. - Fourier transform spectroscopy, diatomic molecules, deperturbation'] ### GND ID: ['gnd:4135413-8', 'gnd:4141130-4', 'gnd:4141882-7', 'gnd:4166806-6', 'gnd:4191214-7', 'gnd:4263453-2', 'gnd:4287503-1', 'gnd:4390975-9', 'gnd:4606572-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A879907517'] ### GND class: ['Fourier-Spektroskopie', 'Absorptionsspektrum', 'Alkaliatom', 'Laserinduzierte Fluoreszenz', 'Zweiatomiges Molekül', 'Elektronenzustand', 'Hochauflösendes Verfahren', 'Erdalkaliatom', 'Streulänge', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A88026621X.jsonld
['Funktionelle Magnetresonanztomographie mit stark unterabgetasteten Trajektorien']
['Zusammenfassung: Aim of this work is the development of methods and trajectories for ultra fast functional MRI. The acquisition time is restricted to 100ms for a single 3D whole brain image. This can be achieved by strong undersampling of k-space in combination with localized receiver coil sensitivities and regularized image reconstruction. The method is applied to various functional imaging experiments']
['gnd:1103258435', 'gnd:4006617-4', 'gnd:7618675-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A88026621X']
['Zahneisen, Benjamin', 'Bildgebendes Verfahren', 'Funktionelle Kernspintomografie']
Document ### Title: ['Funktionelle Magnetresonanztomographie mit stark unterabgetasteten Trajektorien'] ### Abstract: ['Zusammenfassung: Aim of this work is the development of methods and trajectories for ultra fast functional MRI. The acquisition time is restricted to 100ms for a single 3D whole brain image. This can be achieved by strong undersampling of k-space in combination with localized receiver coil sensitivities and regularized image reconstruction. The method is applied to various functional imaging experiments'] ### GND ID: ['gnd:1103258435', 'gnd:4006617-4', 'gnd:7618675-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A88026621X'] ### GND class: ['Zahneisen, Benjamin', 'Bildgebendes Verfahren', 'Funktionelle Kernspintomografie'] <|eot_id|>
3A880286105.jsonld
['Verzerrter Recall als potentielles Hindernis für Synergie bei Gruppenentscheidungen']
[['In hidden profile decision-making tasks, groups often fall short of their potential to make a better decision than each individual group member. Several reasons for this phenomenon have already been established, such as biases regarding both the content of the group discussion and the individual evaluation of information relevant to the decision. This thesis looks into a further aspect of individual information processing where biases could be detrimental to the quality of group decisions: The individual recall of information relevant to the task at hand. Specifically, two biases are propos...', 'In Hidden Profiles gelingt es Gruppen häufig nicht, ihr Potenzial, bessere Entscheidungen als jedes ihrer Mitglieder zu treffen, zu erfüllen. Für dieses Phänomen wurden bereits verschiedene Ursachen ermittelt. Dazu gehören insbesondere Verzerrungen im Inhalt der Gruppendiskussion sowie der Bewertung von entscheidungsrelevanten Informationen durch die Gruppenmitglieder. In der vorliegenden Arbeit wird nun ein weiterer Aspekt individueller Informationsverarbeitung untersucht, dessen Verzerrung einen nachteiligen Einfluss auf die Entscheidungsqualität von Diskussionsgruppen haben könnte: der i...']]
['gnd:4022378-4', 'gnd:4121202-2', 'gnd:4158442-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880286105']
['Gruppe', 'Entscheidungsprozess', 'Gruppenentscheidung']
Document ### Title: ['Verzerrter Recall als potentielles Hindernis für Synergie bei Gruppenentscheidungen'] ### Abstract: [['In hidden profile decision-making tasks, groups often fall short of their potential to make a better decision than each individual group member. Several reasons for this phenomenon have already been established, such as biases regarding both the content of the group discussion and the individual evaluation of information relevant to the decision. This thesis looks into a further aspect of individual information processing where biases could be detrimental to the quality of group decisions: The individual recall of information relevant to the task at hand. Specifically, two biases are propos...', 'In Hidden Profiles gelingt es Gruppen häufig nicht, ihr Potenzial, bessere Entscheidungen als jedes ihrer Mitglieder zu treffen, zu erfüllen. Für dieses Phänomen wurden bereits verschiedene Ursachen ermittelt. Dazu gehören insbesondere Verzerrungen im Inhalt der Gruppendiskussion sowie der Bewertung von entscheidungsrelevanten Informationen durch die Gruppenmitglieder. In der vorliegenden Arbeit wird nun ein weiterer Aspekt individueller Informationsverarbeitung untersucht, dessen Verzerrung einen nachteiligen Einfluss auf die Entscheidungsqualität von Diskussionsgruppen haben könnte: der i...']] ### GND ID: ['gnd:4022378-4', 'gnd:4121202-2', 'gnd:4158442-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880286105'] ### GND class: ['Gruppe', 'Entscheidungsprozess', 'Gruppenentscheidung'] <|eot_id|>
3A880374225.jsonld
['Single artificial-atom lasing of a dressed flux qubit']
['Superconducting quantum bits originally developed for quantum computation have properties similar to real atoms. Because they are micro fabricated circuits, their interaction with electromagnetic radiation can be engineered and effects known from quantum optics may be realized. In this work, a unique lasing scheme exploiting only the lowest two levels of a single artificial atom coupled to a high-quality superconducting resonator is experimentally realized. It is based on the dressing of the atom’s states by a strong signal and the associated rescaling of the relaxation. In addition, basic physical processes are discussed by a separate characterization of the artificial atom, the resonator, and their coupling. A quantum theory including dissipative processes is developed from basic superconducting effects and its applicability demonstrated by a perfect agreement with the experimental results. It gives an illustrative insight into the physics of atom-photon interaction.']
['gnd:1125731753', 'gnd:36164-1', 'gnd:4114251-2', 'gnd:4162777-5', 'gnd:4254074-4', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880374225']
['Oelsner, Gregor', 'Friedrich-Schiller-Universität Jena', 'Kohärente Strahlung', 'Josephson-Kontakt', 'Mikrowellenstrahlung', 'Qubit']
Document ### Title: ['Single artificial-atom lasing of a dressed flux qubit'] ### Abstract: ['Superconducting quantum bits originally developed for quantum computation have properties similar to real atoms. Because they are micro fabricated circuits, their interaction with electromagnetic radiation can be engineered and effects known from quantum optics may be realized. In this work, a unique lasing scheme exploiting only the lowest two levels of a single artificial atom coupled to a high-quality superconducting resonator is experimentally realized. It is based on the dressing of the atom’s states by a strong signal and the associated rescaling of the relaxation. In addition, basic physical processes are discussed by a separate characterization of the artificial atom, the resonator, and their coupling. A quantum theory including dissipative processes is developed from basic superconducting effects and its applicability demonstrated by a perfect agreement with the experimental results. It gives an illustrative insight into the physics of atom-photon interaction.'] ### GND ID: ['gnd:1125731753', 'gnd:36164-1', 'gnd:4114251-2', 'gnd:4162777-5', 'gnd:4254074-4', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880374225'] ### GND class: ['Oelsner, Gregor', 'Friedrich-Schiller-Universität Jena', 'Kohärente Strahlung', 'Josephson-Kontakt', 'Mikrowellenstrahlung', 'Qubit'] <|eot_id|>
3A880390093.jsonld
['Single artificial atom lasing of a dressed flux qubit']
['Superconducting quantum bits originally developed for quantum computation have properties similar to real atoms. Because they are micro fabricated circuits, their interaction with electromagnetic radiation can be engineered and effects known from quantum optics may be realized. In this work, a unique lasing scheme exploiting only the lowest two levels of a single artificial atom coupled to a high-quality superconducting resonator is experimentally realized. It is based on the dressing of the atom’s states by a strong signal and the associated rescaling of the relaxation. In addition, basic physical processes are discussed by a separate characterization of the artificial atom, the resonator, and their coupling. A quantum theory including dissipative processes is developed from basic superconducting effects and its applicability demonstrated by a perfect agreement with the experimental results. It gives an illustrative insight into the physics of atom-photon interaction.']
['gnd:1125731753', 'gnd:36164-1', 'gnd:4114251-2', 'gnd:4162777-5', 'gnd:4254074-4', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880390093']
['Oelsner, Gregor', 'Friedrich-Schiller-Universität Jena', 'Kohärente Strahlung', 'Josephson-Kontakt', 'Mikrowellenstrahlung', 'Qubit']
Document ### Title: ['Single artificial atom lasing of a dressed flux qubit'] ### Abstract: ['Superconducting quantum bits originally developed for quantum computation have properties similar to real atoms. Because they are micro fabricated circuits, their interaction with electromagnetic radiation can be engineered and effects known from quantum optics may be realized. In this work, a unique lasing scheme exploiting only the lowest two levels of a single artificial atom coupled to a high-quality superconducting resonator is experimentally realized. It is based on the dressing of the atom’s states by a strong signal and the associated rescaling of the relaxation. In addition, basic physical processes are discussed by a separate characterization of the artificial atom, the resonator, and their coupling. A quantum theory including dissipative processes is developed from basic superconducting effects and its applicability demonstrated by a perfect agreement with the experimental results. It gives an illustrative insight into the physics of atom-photon interaction.'] ### GND ID: ['gnd:1125731753', 'gnd:36164-1', 'gnd:4114251-2', 'gnd:4162777-5', 'gnd:4254074-4', 'gnd:4842734-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880390093'] ### GND class: ['Oelsner, Gregor', 'Friedrich-Schiller-Universität Jena', 'Kohärente Strahlung', 'Josephson-Kontakt', 'Mikrowellenstrahlung', 'Qubit'] <|eot_id|>
3A88044181X.jsonld
['Algorithms and applications for low power wireless sensor networks using wake-up receivers']
['Abstract: Energy is the driving problem of wireless sensor networks (WSNs). Usually, sensor nodes operate for a long period of time and the only source of power supply is battery cells. The difficulty of accessing and exchanging the batteries leads to a desire for maintenance-free sensor nodes. The functionality of WSNs can be extended through the use of low power microprocessors, sensors and radio transceivers. The availability of low power hardware components provides a technological break-through for wake-up receivers. These receivers interact only when a special wake-up signal addresses them. When a wake-up signal is received, the wake-up receiver triggers the sensor node to activate its radio transceiver. Each sensor node has the capability of transmitting a wake-up signal to a near-by sensor node. Data communication occurs only when the node switches on its transceiver. During this time, the rest of the nodes remain in a sleep state to sustain their energy supply. Here, the nodes avoid overhearing the exchange of data packets which are not intended to them. On the contrary, the duty cycle process of waking up periodically to check the medium for messages or synchronizing with other sensor nodes is not necessary. This raises the hope that duty-cycling might soon be replaced by the wake-up receivers. Nevertheless, the wake-up receivers have to resolve several challenges to be able to participate efficiently in sensor networks. The high energy demand of wake-up signals and the short wake-up coverage ranges compared to data communication diminish the capabilities of sensor nodes. Therefore, in this work new wake-up algorithms are developed to address the shortcoming in the technology to overcome the challenges imposed on the networks through empowering the nodes with the ability to identify efficient ways to manage their energy resources. Still, these shortcomings have a direct effect on the ability of the network to maintain its connectivity. In general, the nodes can construct a wake-up network and a data communication network depending on the nodes coverage ranges. A node failure in the wake-up network might disconnect the node from delivering the data to their neighbors in the data network because of the inability of the nodes to wake them up. Hybrid algorithms that combine duty-cycle and wake-up receivers will solve this problem through maintaining active backbones to allow the sensor network to remain connected. Moreover, wake-up receivers have an ...']
['gnd:1124847243', 'gnd:4123135-1', 'gnd:4789222-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A88044181X']
['Bannoura, Amir', 'Empfänger', 'Drahtloses Sensorsystem']
Document ### Title: ['Algorithms and applications for low power wireless sensor networks using wake-up receivers'] ### Abstract: ['Abstract: Energy is the driving problem of wireless sensor networks (WSNs). Usually, sensor nodes operate for a long period of time and the only source of power supply is battery cells. The difficulty of accessing and exchanging the batteries leads to a desire for maintenance-free sensor nodes. The functionality of WSNs can be extended through the use of low power microprocessors, sensors and radio transceivers. The availability of low power hardware components provides a technological break-through for wake-up receivers. These receivers interact only when a special wake-up signal addresses them. When a wake-up signal is received, the wake-up receiver triggers the sensor node to activate its radio transceiver. Each sensor node has the capability of transmitting a wake-up signal to a near-by sensor node. Data communication occurs only when the node switches on its transceiver. During this time, the rest of the nodes remain in a sleep state to sustain their energy supply. Here, the nodes avoid overhearing the exchange of data packets which are not intended to them. On the contrary, the duty cycle process of waking up periodically to check the medium for messages or synchronizing with other sensor nodes is not necessary. This raises the hope that duty-cycling might soon be replaced by the wake-up receivers. Nevertheless, the wake-up receivers have to resolve several challenges to be able to participate efficiently in sensor networks. The high energy demand of wake-up signals and the short wake-up coverage ranges compared to data communication diminish the capabilities of sensor nodes. Therefore, in this work new wake-up algorithms are developed to address the shortcoming in the technology to overcome the challenges imposed on the networks through empowering the nodes with the ability to identify efficient ways to manage their energy resources. Still, these shortcomings have a direct effect on the ability of the network to maintain its connectivity. In general, the nodes can construct a wake-up network and a data communication network depending on the nodes coverage ranges. A node failure in the wake-up network might disconnect the node from delivering the data to their neighbors in the data network because of the inability of the nodes to wake them up. Hybrid algorithms that combine duty-cycle and wake-up receivers will solve this problem through maintaining active backbones to allow the sensor network to remain connected. Moreover, wake-up receivers have an ...'] ### GND ID: ['gnd:1124847243', 'gnd:4123135-1', 'gnd:4789222-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A88044181X'] ### GND class: ['Bannoura, Amir', 'Empfänger', 'Drahtloses Sensorsystem'] <|eot_id|>
3A880443847.jsonld
['Sharp-Interface limit for the Navier-Stokes-Korteweg equations']
[['Abstract: Liquid-vapour flows can be described by two different types of mathematical models: known as diffuse- and sharp-interface models, respectively. The difference between them lies in the representation of the interfacial layer where phase transitions occur. While in diffuse-interface models this region has a small, but positive, thickness, in sharp-interface models an infinitesimally thin hypersurface is used instead. The diffuse-interface model can be related to the associated sharp-interface model by taking the limit where the thickness of the interfacial region tends to zero. We will call this the sharp-interface limit of the diffuse-interface model.Here, we investigate the sharp-interface limit for the Navier-Stokes-Korteweg model, which is an extension of the compressible Navier-Stokes equations.This diffuse-interface model for liquid-vapour flows was already proposed by the Dutch mathematician Diederik Johannes Korteweg in 1901.By means of compactness arguments, we show that solutions of the Navier-Stokes-Korteweg equations converge to solutions of a physically meaningful free-boundary problem. Assuming that an associated energy functional converges in a suitable sense, we obtain the sharp-interface limit at the level of weak solutions', 'Abstract: Flüssigkeits-Gas-Gemische können durch zwei unterschiedliche Arten von mathematischen Modellen beschrieben werden: diffuse und scharfe Grenzschicht-Modelle. Diese unterscheiden sich in der Darstellung der Grenzschicht in der Phasenübergänge stattfinden. Während dieser Bereich in diffusen Grenzschicht-Modellen eine kleine, positive Dicke besitzt, wird er in scharfen Grenzschicht-Modellen durch eine unendlich dünne Hyperfläche dargestellt. Um den Zusammenhang zwischen einem diffusen und einem scharfen Grenzschicht-Modell zu untersuchen, betrachtet man den Grenzwert für eine im Unendlichen verschwindende Grenzschichtdicke. Dieser wird als singulärer Grenzwert bezeichnet.Im Rahmen dieser Arbeit wird der singuläre Grenzwert des Navier-Stokes-Korteweg-Modells, einer Erweiterung der kompressiblen Navier-Stokes-Gleichungen, durchgeführt.Dieses diffuse Grenzschicht-Modell wurde bereits 1901 von dem niederländischen Mathematiker Diederik Johannes Korteweg vorgeschlagen.Mittels Kompaktheitsmethoden wird bewiesen, dass Lösungen der Navier-Stokes-Korte-weg-Gleichungen gegen Lösungen eines physikalisch sinnvollen freien Randwertproblems konvergieren. Unter der Annahme, dass ein zugehöriges Energiefunktional in einem geeigneten Sinn konvergiert, wird der Übergang zum singulären Grenzwert für schwache Lösungen durchgeführt']]
['gnd:1125456744', 'gnd:4022005-9', 'gnd:4041456-5', 'gnd:4156024-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880443847']
['Daube, Johannes', 'Grenzschicht', 'Navier-Stokes-Gleichung', 'Gas-Flüssigkeit-System']
Document ### Title: ['Sharp-Interface limit for the Navier-Stokes-Korteweg equations'] ### Abstract: [['Abstract: Liquid-vapour flows can be described by two different types of mathematical models: known as diffuse- and sharp-interface models, respectively. The difference between them lies in the representation of the interfacial layer where phase transitions occur. While in diffuse-interface models this region has a small, but positive, thickness, in sharp-interface models an infinitesimally thin hypersurface is used instead. The diffuse-interface model can be related to the associated sharp-interface model by taking the limit where the thickness of the interfacial region tends to zero. We will call this the sharp-interface limit of the diffuse-interface model.Here, we investigate the sharp-interface limit for the Navier-Stokes-Korteweg model, which is an extension of the compressible Navier-Stokes equations.This diffuse-interface model for liquid-vapour flows was already proposed by the Dutch mathematician Diederik Johannes Korteweg in 1901.By means of compactness arguments, we show that solutions of the Navier-Stokes-Korteweg equations converge to solutions of a physically meaningful free-boundary problem. Assuming that an associated energy functional converges in a suitable sense, we obtain the sharp-interface limit at the level of weak solutions', 'Abstract: Flüssigkeits-Gas-Gemische können durch zwei unterschiedliche Arten von mathematischen Modellen beschrieben werden: diffuse und scharfe Grenzschicht-Modelle. Diese unterscheiden sich in der Darstellung der Grenzschicht in der Phasenübergänge stattfinden. Während dieser Bereich in diffusen Grenzschicht-Modellen eine kleine, positive Dicke besitzt, wird er in scharfen Grenzschicht-Modellen durch eine unendlich dünne Hyperfläche dargestellt. Um den Zusammenhang zwischen einem diffusen und einem scharfen Grenzschicht-Modell zu untersuchen, betrachtet man den Grenzwert für eine im Unendlichen verschwindende Grenzschichtdicke. Dieser wird als singulärer Grenzwert bezeichnet.Im Rahmen dieser Arbeit wird der singuläre Grenzwert des Navier-Stokes-Korteweg-Modells, einer Erweiterung der kompressiblen Navier-Stokes-Gleichungen, durchgeführt.Dieses diffuse Grenzschicht-Modell wurde bereits 1901 von dem niederländischen Mathematiker Diederik Johannes Korteweg vorgeschlagen.Mittels Kompaktheitsmethoden wird bewiesen, dass Lösungen der Navier-Stokes-Korte-weg-Gleichungen gegen Lösungen eines physikalisch sinnvollen freien Randwertproblems konvergieren. Unter der Annahme, dass ein zugehöriges Energiefunktional in einem geeigneten Sinn konvergiert, wird der Übergang zum singulären Grenzwert für schwache Lösungen durchgeführt']] ### GND ID: ['gnd:1125456744', 'gnd:4022005-9', 'gnd:4041456-5', 'gnd:4156024-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880443847'] ### GND class: ['Daube, Johannes', 'Grenzschicht', 'Navier-Stokes-Gleichung', 'Gas-Flüssigkeit-System'] <|eot_id|>
3A880450010.jsonld
['Diskurse als Nährboden demokratischer Außenpolitik? : Kriegsentscheidungen in der massenmedialen Öffentlichkeit']
[['Is foreign policy condemned to lack democratic legitimation? No. This book develops a post-structural perspective on the legitimation of foreign policy by concentrating on discourse as a source for political decision-making on war and peace. The book derives the ideal of a democratic discourse from Chantal Mouffe’s agonistic democracy and analyses the public discourses in the mass media about the military interventions in Iraq in 2003 and in Libya in 2011. It refines the frame-approach from communication studies and makes it viable for political science discourse analyses. Its methodological approach is characterised by transparency and reliability, and it can serve as a tool for further research which focuses on analytical discourse.', 'Aus klassischer Sicht gilt im Feld der Außenpolitik das Primat der Exekutive. Muss Außenpolitik als Schönheitsmakel der Demokratie hingenommen werden? Nein. Das Werk entwickelt eine poststrukturalistische Perspektive auf die Legitimierung von Außenpolitik, indem es sein Augenmerk auf Diskurse als Ursprung politischer Entscheidungen über Krieg und Frieden richtet. Das Ideal eines demokratischen Diskurses leitet das Werk aus Chantal Mouffes agonistischer Demokratie ab; als Fallbeispiele dienen die Diskurse der massenmedialen Öffentlichkeiten zum Irakkrieg 2003 und zum Libyenkrieg 2011. Die im Werk entwickelte Methodik macht den kommunikationswissenschaftlichen Frame-Ansatz für die politikwissenschaftliche Diskursanalyse fruchtbar und erfüllt den Anspruch der Transparenz und Nachvollziehbarkeit. Das Analysewerkzeug überkommt die Schwächen üblicher Diskursanalysen und bietet ein theoretisch fundiertes methodisches Werkzeug für diskursanalytische Forschungsvorhaben.']]
['gnd:4003846-4', 'gnd:4011882-4', 'gnd:4012475-7', 'gnd:4037877-9', 'gnd:4043152-6', 'gnd:4731075-3', 'gnd:5018951-7', 'gnd:7849660-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880450010']
['Außenpolitik', 'Deutschland', 'Diskurs', 'Massenmedien', 'Öffentliche Meinung', 'Golfkrieg (2003)', 'Technische Universität Chemnitz', 'Bürgerkrieg in Libyen']
Document ### Title: ['Diskurse als Nährboden demokratischer Außenpolitik? : Kriegsentscheidungen in der massenmedialen Öffentlichkeit'] ### Abstract: [['Is foreign policy condemned to lack democratic legitimation? No. This book develops a post-structural perspective on the legitimation of foreign policy by concentrating on discourse as a source for political decision-making on war and peace. The book derives the ideal of a democratic discourse from Chantal Mouffe’s agonistic democracy and analyses the public discourses in the mass media about the military interventions in Iraq in 2003 and in Libya in 2011. It refines the frame-approach from communication studies and makes it viable for political science discourse analyses. Its methodological approach is characterised by transparency and reliability, and it can serve as a tool for further research which focuses on analytical discourse.', 'Aus klassischer Sicht gilt im Feld der Außenpolitik das Primat der Exekutive. Muss Außenpolitik als Schönheitsmakel der Demokratie hingenommen werden? Nein. Das Werk entwickelt eine poststrukturalistische Perspektive auf die Legitimierung von Außenpolitik, indem es sein Augenmerk auf Diskurse als Ursprung politischer Entscheidungen über Krieg und Frieden richtet. Das Ideal eines demokratischen Diskurses leitet das Werk aus Chantal Mouffes agonistischer Demokratie ab; als Fallbeispiele dienen die Diskurse der massenmedialen Öffentlichkeiten zum Irakkrieg 2003 und zum Libyenkrieg 2011. Die im Werk entwickelte Methodik macht den kommunikationswissenschaftlichen Frame-Ansatz für die politikwissenschaftliche Diskursanalyse fruchtbar und erfüllt den Anspruch der Transparenz und Nachvollziehbarkeit. Das Analysewerkzeug überkommt die Schwächen üblicher Diskursanalysen und bietet ein theoretisch fundiertes methodisches Werkzeug für diskursanalytische Forschungsvorhaben.']] ### GND ID: ['gnd:4003846-4', 'gnd:4011882-4', 'gnd:4012475-7', 'gnd:4037877-9', 'gnd:4043152-6', 'gnd:4731075-3', 'gnd:5018951-7', 'gnd:7849660-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880450010'] ### GND class: ['Außenpolitik', 'Deutschland', 'Diskurs', 'Massenmedien', 'Öffentliche Meinung', 'Golfkrieg (2003)', 'Technische Universität Chemnitz', 'Bürgerkrieg in Libyen'] <|eot_id|>
3A880454806.jsonld
['Strategic communication, voting and political institutions : essays in behavioral political economy']
['Explaining how political institutions shape human behavior is one of the big challenges of social sciences. This thesis uses game theory, behavioral economics and the tools of experimental economics to study two topics in particular: information aggregation and legitimacy of institutions. While political decisions are most accurate when based on aggregated information, individuals with heterogeneous preferences over political issues often have no incentives to share their private information sincerely. The first two chapters investigate whether individuals - instead of strategic lying - resort to telling the truth as a simple heuristic in complex collective decisions and whether the desire to show one’s own expertise induces sincere communication. The last chapter studies how a political institution’s legitimacy influences the extent and efficacy of third-party punishment. The evidence presented in this thesis shows that individuals differ largely in their ability to lie strategically, they are more likely to tell the truth when they can signal their expertise in a prestigious knowledge area, and sanctions of a democratically legitimized institution are milder and more effective. Relaxing the standard assumptions of full rationality and self-interested preferences, and integrating cognitive constraints and behavioral motives such as image concerns and legitimacy in economic models is thus key to understanding political behavior.']
['gnd:1093235373', 'gnd:36164-1', 'gnd:4132693-3', 'gnd:7751254-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880454806']
['Marcin, Isabel', 'Friedrich-Schiller-Universität Jena', 'Politische Institution', 'Verhaltensökonomie']
Document ### Title: ['Strategic communication, voting and political institutions : essays in behavioral political economy'] ### Abstract: ['Explaining how political institutions shape human behavior is one of the big challenges of social sciences. This thesis uses game theory, behavioral economics and the tools of experimental economics to study two topics in particular: information aggregation and legitimacy of institutions. While political decisions are most accurate when based on aggregated information, individuals with heterogeneous preferences over political issues often have no incentives to share their private information sincerely. The first two chapters investigate whether individuals - instead of strategic lying - resort to telling the truth as a simple heuristic in complex collective decisions and whether the desire to show one’s own expertise induces sincere communication. The last chapter studies how a political institution’s legitimacy influences the extent and efficacy of third-party punishment. The evidence presented in this thesis shows that individuals differ largely in their ability to lie strategically, they are more likely to tell the truth when they can signal their expertise in a prestigious knowledge area, and sanctions of a democratically legitimized institution are milder and more effective. Relaxing the standard assumptions of full rationality and self-interested preferences, and integrating cognitive constraints and behavioral motives such as image concerns and legitimacy in economic models is thus key to understanding political behavior.'] ### GND ID: ['gnd:1093235373', 'gnd:36164-1', 'gnd:4132693-3', 'gnd:7751254-6', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880454806'] ### GND class: ['Marcin, Isabel', 'Friedrich-Schiller-Universität Jena', 'Politische Institution', 'Verhaltensökonomie'] <|eot_id|>
3A880580402.jsonld
['Photokatalytische Oxidation niedermolekularer Alkohole']
['Photokatalyse, Titandioxid, niedermolekulare Alkohole, HPLC-Analyse, NASH-Methode. - Photocatalysis, titanium dioxide, low molecular weight alcohols, HPLC-analysis, NASH-analysis']
['gnd:131454617', 'gnd:171963172', 'gnd:4141899-2', 'gnd:4185549-8', 'gnd:4193873-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880580402']
['Renz, Franz', 'Bahnemann, Detlef', 'Alkohole', 'Titandioxid', 'Fotokatalyse', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Photokatalytische Oxidation niedermolekularer Alkohole'] ### Abstract: ['Photokatalyse, Titandioxid, niedermolekulare Alkohole, HPLC-Analyse, NASH-Methode. - Photocatalysis, titanium dioxide, low molecular weight alcohols, HPLC-analysis, NASH-analysis'] ### GND ID: ['gnd:131454617', 'gnd:171963172', 'gnd:4141899-2', 'gnd:4185549-8', 'gnd:4193873-2', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880580402'] ### GND class: ['Renz, Franz', 'Bahnemann, Detlef', 'Alkohole', 'Titandioxid', 'Fotokatalyse', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A880804505.jsonld
['Filtered density functions for uncertainty assessments of transport in groundwater']
['It is estimated that fifty percent of the drinking water is extracted from groundwater sources. But the groundwater quality is threatened by contaminants. Risk assessments are applied to geohydrological systems in order to estimate if they pose a risk through groundwater pollution. These risks not only depend on the impact of the contaminants, but also on the their propagation in the groundwater. Properties of the subsurface have a strong impact on the groundwater flow and therefore also on the transport of solutes. The scarcity of data together with the heterogeneity of the subsurface can cause the uncertainty of the transport predictions to be so large that they cannot be neglected. Consequently, the uncertainty needs to be included in the risk assessments. This is possible by using a geostatistical representation of the subsurface, which results in a probabilistic description of the transport processes. Probability density function (PDF) methods provide an integrated framework to predict the transport of solutes in which uncertainties are incorporated seamlessly. But PDF methods require the assumption of a statistically homogeneous conductivity field. This is problematic. Using spatially averaged quantities instead of stochastic averages, an alternative to PDF methods is found: the filtered density function (FDF) methods. The aim of the research presented here is to develop such an FDF method for predicting the transport in groundwater. Therefore, three steps are necessary. An efficient and accurate numerical solver for FDF equations needs to be developed. In a second step, the parameters contained by the equations have to be filtered. And finally, an appropriate mixing model needs to be found for approximating the unclosed mixing term. The mixing term is of particular interest because it has a direct impact on the uncertainty evolution. In summary, this work contributes towards the development of an FDF framework applied to the transport in groundwater.']
['gnd:1122649029', 'gnd:36164-1', 'gnd:4026309-5', 'gnd:4296576-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880804505']
['Schüler, Lennart', 'Friedrich-Schiller-Universität Jena', 'Hydrologie', 'Schadstofftransport']
Document ### Title: ['Filtered density functions for uncertainty assessments of transport in groundwater'] ### Abstract: ['It is estimated that fifty percent of the drinking water is extracted from groundwater sources. But the groundwater quality is threatened by contaminants. Risk assessments are applied to geohydrological systems in order to estimate if they pose a risk through groundwater pollution. These risks not only depend on the impact of the contaminants, but also on the their propagation in the groundwater. Properties of the subsurface have a strong impact on the groundwater flow and therefore also on the transport of solutes. The scarcity of data together with the heterogeneity of the subsurface can cause the uncertainty of the transport predictions to be so large that they cannot be neglected. Consequently, the uncertainty needs to be included in the risk assessments. This is possible by using a geostatistical representation of the subsurface, which results in a probabilistic description of the transport processes. Probability density function (PDF) methods provide an integrated framework to predict the transport of solutes in which uncertainties are incorporated seamlessly. But PDF methods require the assumption of a statistically homogeneous conductivity field. This is problematic. Using spatially averaged quantities instead of stochastic averages, an alternative to PDF methods is found: the filtered density function (FDF) methods. The aim of the research presented here is to develop such an FDF method for predicting the transport in groundwater. Therefore, three steps are necessary. An efficient and accurate numerical solver for FDF equations needs to be developed. In a second step, the parameters contained by the equations have to be filtered. And finally, an appropriate mixing model needs to be found for approximating the unclosed mixing term. The mixing term is of particular interest because it has a direct impact on the uncertainty evolution. In summary, this work contributes towards the development of an FDF framework applied to the transport in groundwater.'] ### GND ID: ['gnd:1122649029', 'gnd:36164-1', 'gnd:4026309-5', 'gnd:4296576-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880804505'] ### GND class: ['Schüler, Lennart', 'Friedrich-Schiller-Universität Jena', 'Hydrologie', 'Schadstofftransport'] <|eot_id|>
3A880811188.jsonld
['Turning a problem into a solution : heterogeneities in soil hydrology']
['It is commonly recognized that soil moisture exhibits spatial heterogeneities occurring in a wide range of scales. These heterogeneities are caused by different factors ranging from soil structure at the plot scale to land use at the landscape scale. There is an urgent need for effi-cient approaches to deal with soil moisture heterogeneity at large scales, where manage-ment decisions are usually made. The aim of this dissertation was to test innovative ap-proaches for making efficient use of standard soil hydrological data in order to assess seep-age rates and main controls on observed hydrological behavior, including the role of soil het-erogeneities. As a first step, the applicability of a simplified Buckingham-Darcy method to estimate deep seepage fluxes from point information of soil moisture dynamics was assessed. This was done in a numerical experiment considering a broad range of soil textures and textural het-erogeneities. The method performed well for most soil texture classes. However, in pure sand where seepage fluxes were ...']
['gnd:1126209163', 'gnd:4201275-2', 'gnd:4236526-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880811188']
['Hohenbrink, Tobias', 'Heterogenität', 'Bodenfeuchte']
Document ### Title: ['Turning a problem into a solution : heterogeneities in soil hydrology'] ### Abstract: ['It is commonly recognized that soil moisture exhibits spatial heterogeneities occurring in a wide range of scales. These heterogeneities are caused by different factors ranging from soil structure at the plot scale to land use at the landscape scale. There is an urgent need for effi-cient approaches to deal with soil moisture heterogeneity at large scales, where manage-ment decisions are usually made. The aim of this dissertation was to test innovative ap-proaches for making efficient use of standard soil hydrological data in order to assess seep-age rates and main controls on observed hydrological behavior, including the role of soil het-erogeneities. As a first step, the applicability of a simplified Buckingham-Darcy method to estimate deep seepage fluxes from point information of soil moisture dynamics was assessed. This was done in a numerical experiment considering a broad range of soil textures and textural het-erogeneities. The method performed well for most soil texture classes. However, in pure sand where seepage fluxes were ...'] ### GND ID: ['gnd:1126209163', 'gnd:4201275-2', 'gnd:4236526-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880811188'] ### GND class: ['Hohenbrink, Tobias', 'Heterogenität', 'Bodenfeuchte'] <|eot_id|>
3A880811382.jsonld
['Tissue and population-level diversity in plant secondary metabolism : a systematic exploration using MS/MS structural analysis']
['Plants are amazing synthetic chemists that create diversified secondary metabolites which play myriad ecological roles for their survival and reproductive fitness in nature. The structural complexity of secondary metabolism has severely hampered its functional analysis. The potential of MS-based metabolomics and of the large-scale acquisition of tandem MS (MS/MS) spectra is limited by the absence of straightforward classification and visualization pipelines so that secondary metabolite and the underlying pathway interpretations can be easily made. From a mechanistic standpoint, secondary metabolism diversity attributes to the occurrence of multiplicity of genes in plant genomes. Yet the majorities of metabolic gene functions remain however unknown. In this thesis, I developed a workflow to systematically explore the diversity of secondary metabolism in Nicotiana attenuata – a metabolically rich ecological model plant. I first characterize the metabolic space of this model plant using the large-scale acquisition of MS/MS spectral information in a data-independent manner and the computational re-assembly of non-redundant MS/MS spectra. The resulting MS signatures were then aligned and visualized to rapidly formulate structural hypotheses. Using natural variation, I examined the correlations among jasmonate signaling and large-scale defense metabolism. The resulting correlation maps uncovered new metabolic layers in a plant’s jasmonate-mediated defensive arsenal. In the tissue-level exploration of secondary metabolite diversity, Transciptomic and metabolomic information and their variance as analyzed by information theory were used for the predictions of tissue-specific function of genes responsible for the metabolic signatures.']
['gnd:1124709711', 'gnd:36164-1', 'gnd:4045539-7', 'gnd:4207952-4', 'gnd:4300564-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880811382']
['Li, Dapeng', 'Friedrich-Schiller-Universität Jena', 'Pflanzen', 'Tandem-Massenspektrometrie', 'Sekundärmetabolit']
Document ### Title: ['Tissue and population-level diversity in plant secondary metabolism : a systematic exploration using MS/MS structural analysis'] ### Abstract: ['Plants are amazing synthetic chemists that create diversified secondary metabolites which play myriad ecological roles for their survival and reproductive fitness in nature. The structural complexity of secondary metabolism has severely hampered its functional analysis. The potential of MS-based metabolomics and of the large-scale acquisition of tandem MS (MS/MS) spectra is limited by the absence of straightforward classification and visualization pipelines so that secondary metabolite and the underlying pathway interpretations can be easily made. From a mechanistic standpoint, secondary metabolism diversity attributes to the occurrence of multiplicity of genes in plant genomes. Yet the majorities of metabolic gene functions remain however unknown. In this thesis, I developed a workflow to systematically explore the diversity of secondary metabolism in Nicotiana attenuata – a metabolically rich ecological model plant. I first characterize the metabolic space of this model plant using the large-scale acquisition of MS/MS spectral information in a data-independent manner and the computational re-assembly of non-redundant MS/MS spectra. The resulting MS signatures were then aligned and visualized to rapidly formulate structural hypotheses. Using natural variation, I examined the correlations among jasmonate signaling and large-scale defense metabolism. The resulting correlation maps uncovered new metabolic layers in a plant’s jasmonate-mediated defensive arsenal. In the tissue-level exploration of secondary metabolite diversity, Transciptomic and metabolomic information and their variance as analyzed by information theory were used for the predictions of tissue-specific function of genes responsible for the metabolic signatures.'] ### GND ID: ['gnd:1124709711', 'gnd:36164-1', 'gnd:4045539-7', 'gnd:4207952-4', 'gnd:4300564-0', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880811382'] ### GND class: ['Li, Dapeng', 'Friedrich-Schiller-Universität Jena', 'Pflanzen', 'Tandem-Massenspektrometrie', 'Sekundärmetabolit'] <|eot_id|>
3A880854782.jsonld
['Collisional modelling of resolved debris discs']
["Debris discs are optically thin circumstellar discs that comprise solids in a broad range of sizes, from (sub)micron-sized dust grains up to kilometre-sized planetesimals. The dust component of debris discs is short-lived and continuously replenished through collisional attrition between planetesimals in reservoirs analogous to the Solar system's asteroid and Kuiper belts. Together with planets, debris discs are believed to be the end product of the star and planet formation process. In this thesis, collisional modelling is employed, which simulates the long-term collisional evolution from planetesimals to dust. The calculated dust distributions are used for the comparison with observational data. This powerful technique reveals properties of the underlying dust-producing planetesimal belts which are not directly discernible by observations. The code ACE of the Jena AIU group predicts the evolution of rotationally-symmetric debris discs. ACE calculates collisions between ensembles of circumstellar objects and considers the influence of stellar gravity as well as stellar radiative and corpuscular forces. The code is applied to the systems HIP 17439, AU Mic, and q1 Eri, where the outer part of a debris disc is spatially resolved at multiple wavelengths. All three systems show hints for warm and cold dust populations. The modelling addresses the question of what might be their origin. Two scenarios are considered: a Solar system-like architecture with two planetesimal belts as in-situ sources of dust (Scenario I), and an outer planetesimal belt from which dust is transported inwards by Poynting-Robertson and stellar wind drag (Scenario II). While Scenario I seems to be the most plausible for q1 Eri, Scenario II is preferred for AU Mic. However, no strict conclusion can be drawn for HIP 17439, where both scenarios are possible. More than two planetesimal belts or even a radially extended planetesimal belt cannot be excluded either."]
['gnd:1124709053', 'gnd:36164-1', 'gnd:4314752-5', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880854782']
['Schüppler, Christian', 'Friedrich-Schiller-Universität Jena', 'Zirkumstellare Hülle', 'Kosmischer Staub']
Document ### Title: ['Collisional modelling of resolved debris discs'] ### Abstract: ["Debris discs are optically thin circumstellar discs that comprise solids in a broad range of sizes, from (sub)micron-sized dust grains up to kilometre-sized planetesimals. The dust component of debris discs is short-lived and continuously replenished through collisional attrition between planetesimals in reservoirs analogous to the Solar system's asteroid and Kuiper belts. Together with planets, debris discs are believed to be the end product of the star and planet formation process. In this thesis, collisional modelling is employed, which simulates the long-term collisional evolution from planetesimals to dust. The calculated dust distributions are used for the comparison with observational data. This powerful technique reveals properties of the underlying dust-producing planetesimal belts which are not directly discernible by observations. The code ACE of the Jena AIU group predicts the evolution of rotationally-symmetric debris discs. ACE calculates collisions between ensembles of circumstellar objects and considers the influence of stellar gravity as well as stellar radiative and corpuscular forces. The code is applied to the systems HIP 17439, AU Mic, and q1 Eri, where the outer part of a debris disc is spatially resolved at multiple wavelengths. All three systems show hints for warm and cold dust populations. The modelling addresses the question of what might be their origin. Two scenarios are considered: a Solar system-like architecture with two planetesimal belts as in-situ sources of dust (Scenario I), and an outer planetesimal belt from which dust is transported inwards by Poynting-Robertson and stellar wind drag (Scenario II). While Scenario I seems to be the most plausible for q1 Eri, Scenario II is preferred for AU Mic. However, no strict conclusion can be drawn for HIP 17439, where both scenarios are possible. More than two planetesimal belts or even a radially extended planetesimal belt cannot be excluded either."] ### GND ID: ['gnd:1124709053', 'gnd:36164-1', 'gnd:4314752-5', 'gnd:4384866-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880854782'] ### GND class: ['Schüppler, Christian', 'Friedrich-Schiller-Universität Jena', 'Zirkumstellare Hülle', 'Kosmischer Staub'] <|eot_id|>
3A880948493.jsonld
['Micromechanical and three-dimensional microstructural characterization of nanoporous gold-epoxy composites']
[['Nanoporous gold (npg), a bicontinuous network of nanoscale gold ligaments and pores, displays tunable mechanical behavior through the variation of internal length-scales. However, it is severely limited by its lack of ductility in tension. By infiltrating the porous structure with epoxy, a composite material with enhanced tensile ductility and ow stress is achieved. The present work aims at a three-fold investigation of micromechanical behavior, mechanisms of deformation and failure of the npg-epoxy composite, focusing on 3D microstructural characterization, finite element simulation and micromechanical testing. In order to understand the composite microstructure, high resolution 3D reconstructions of the npg ligament network were achieved with focused ion beam (FIB) based tomography, taking advantage of epoxy infiltration on FIB machining of porous media. It is assumed that the infiltration of epoxy does not significantly alter the geometry of the npg network. Samples of varying structural length-scales were used, with mean ligament diameters in the range of tens to hundreds of nanometers, as achieved through isothermal annealing of npg. Quantitative analyses of the 3D reconstructions were carried out in terms of metric properties (e.g., relative density, ligament diameter distribution and specific surface area), topological properties (e.g., connectivity density), and directional properties (e.g., directional tortuosity). Importantly, representative volumes (RVs) were identified, which reflects the global structural properties of the material. It was found that npg coarsens in a nearly self-similar manner. This allows the identification of structural parameters, which can be used to describe the mechanical behavior of the global npg structure over varying length scales. FEM simulations applied to meshed RVs of the 3D reconstructions strongly suggest that the effective relative density of the load bearing ligament structure is the critical structural parameter in determining the mechanical behavior of npg structural geometry, rather than the solid relative density alone, as is often assumed. After infiltration with epoxy, the densification during deformation of npg-epoxy composites is strongly suppressed. This leads to a strongly enhanced strength compared to pure npg. However, the dependence of the yield strength on the mean ligament size is much weaker in the composite structure as compared to pure npg. The size effects in pure npg have been commonly attributed to dislocation activities within the gold ligaments, whereas in the composite material the influence of the interface on the motion of the dislocations and the epoxy chains must be considered. The interfacial behavior leads to a strengthening effect in the composites but weakens the size effects. The comparisons of the elastic moduli from the analytical models predictions, the experiments and the FEM simulations demonstrated the influences of the connectivity, the effective relative density of the load bearing ligament structure, the directional tortuosity of the ligaments and the interface on the elastic behavior of the npg-epoxy composites. Interfacial failure was experimentally observed under compression and tension. The tension-compression asymmetry investigation revealed that the npg-epoxy composite is stronger in compression than in tension. These various observations point to the important roles that the hard phase, i.e., the interconnected ligament network, the soft phase, i.e., the continuous epoxy, and the interface between them play on the mechanical behavior of npg-epoxy composites.', 'Nanoporöses Gold (NPG), ein bikontinuierliches Netzwerk aus nanoskaligen Goldligamenten und Poren, weist durch Variation der inneren Längenskalen ein abstimmbares mechanisches Verhalten auf. Allerdings ist es schwerwiegend eingeschränkt durch seinen Mangel an Verformbarkeit unter Zugspannung. Durch Infiltration der porösen Struktur mit Epoxid erhält man ein Kompositmaterial mit verbesserter Zugverformbarkeit und Fließspannung. Die vorliegende Arbeit strebt eine dreifache Untersuchung des mikromechanischen Verhaltens, der Verformungsmechanismen und des mechanischen Versagens von NPG-Epoxid Kompositen an, durch Fokussierung auf 3D Mikrostrukturcharakterisierung, Finite Elemente Simulation (FEM) und mikromechanische Prüfung. Um die Kompositmikrostruktur zu verstehen wurden hochaufgelöste 3D Rekonstruktionen mit auf fokussierten Ionenstrahlen (focused ion beam, FIB) basierter Tomographie hergestellt, möglich gemacht durch den positiven Effekt der Infiltration mit Epoxid auf die Bearbeitung poröser Medien mit FIB. Dabei wird angenommen, dass die Epoxidinfiltration die Geometrie des NPG Netzwerks nicht signifikant ändert. Proben mit unterschiedlichen strukturellen Längen wurden verwendet, d.h. mit mittleren Ligamentdurchmessern im Bereich von einigen 10 bis mehrere 100 nm, erreicht durch isothermes Anlassen. Es wurden quantitative Analysen der 3D Rekonstruktionen durchgeführt hinsichtlich der metrischen Eigenschaften (z.B. relative Dichte, Verteilungen der Ligamentdurchmesser und spezifische Oberfläche), topologischen Eigenschaften (z.B. Konnektivitätsdichten) und richtungsabhängigen Eigenschaften (z.B. Richtungstortuosität). Von großer Wichtigkeit war die Identifikation von repräsentativen Volumen (RV), die die globalen Struktureigenschaften des Materials reflektieren. Es wurde herausgefunden, dass NPG nahezu selbstähnlich vergröbert. Dies erlaubt die Identifizierung struktureller Größen, die zur Beschreibung des mechanischen Verhaltens globaler NPG Strukturen über variierende Längenskalen verwendet werden können. FEM Simulationen angewendet auf vermaschte RV der 3D Rekonstruktionen weisen stark darauf hin, dass die effektive relative Dichte der lasttragenden Ligamentstruktur die kritische Größe in der Bestimmung des mechanischen Verhaltens der NPG Strukturgeometrie ist, eher als die relative Dichte der festen Phase wie oft angenommen. Nach der Infiltration mit Epoxid ist die Verdichtung von NPG-Epoxid Kompositen unter Verformung stark unterdrückt. Dies führt zu einer stark verbesserten Festigkeit im Vergleich zu reinem NPG. Allerdings ist die Abhängigkeit der Fließgrenze von der mittleren Ligamentgröße viel schwächer in der Kompositstruktur verglichen mit reinem NPG. Die Größeneffekte in reinem NPG sind üblicherweise Versetzungsaktivitäten in den Goldligamenten zugeordnet worden, wogegen im Kompositmaterial der Einfluss der Grenzfläche auf die Versetzungsbewegung und die Epoxidketten in Betracht gezogen werden muss. Das Grenzflächenverhalten führt zu einem Verstärkungseffekt in den Kompositen aber schwächt die Größeneffekte ab. Die Vergleiche der Elastizitätsmoduln aus den Vorhersagen der analytischen Modelle, den Experimenten und der FEM Simulationen demonstrierten die Einflüsse der Konnektivität, der effektiven relativen Dichte der lasttragenden Ligamentstruktur, der Richtungstortuosität der Ligamente und der Grenzfläche auf das elastische Verhalten der NPG-Epoxid Komposite. Grenzflächenversagen wurde experimentell beobachtet unter Kompression und Zug. Die Untersuchung der Zug-Druck Asymmetrie zeigte, dass das NPG-Epoxid Komposit stärker unter Druck als unter Zug ist. Diese unterschiedlichen Beobachtungen zeigen die wichtigen Rollen auf, die die harte Phase, also das verknüpfte Ligamentnetzwerk, die weiche Phase, d.h. das kontinuierliche Epoxid, und die Grenzfläche zwischen ihnen für das mechanische Verhalten von NPG-Epoxid Komposite spielen.']]
['gnd:10194308-8', 'gnd:1076028772', 'gnd:1138805939', 'gnd:2067664-5', 'gnd:4062670-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880948493']
['Technische Universität Hamburg-Harburg, Institut für Keramische Hochleistungswerkstoffe', 'Werkstoffmechanik', 'Lilleodden, Erica', 'Technische Universität Hamburg-Harburg', 'Verbundwerkstoff']
Document ### Title: ['Micromechanical and three-dimensional microstructural characterization of nanoporous gold-epoxy composites'] ### Abstract: [['Nanoporous gold (npg), a bicontinuous network of nanoscale gold ligaments and pores, displays tunable mechanical behavior through the variation of internal length-scales. However, it is severely limited by its lack of ductility in tension. By infiltrating the porous structure with epoxy, a composite material with enhanced tensile ductility and ow stress is achieved. The present work aims at a three-fold investigation of micromechanical behavior, mechanisms of deformation and failure of the npg-epoxy composite, focusing on 3D microstructural characterization, finite element simulation and micromechanical testing. In order to understand the composite microstructure, high resolution 3D reconstructions of the npg ligament network were achieved with focused ion beam (FIB) based tomography, taking advantage of epoxy infiltration on FIB machining of porous media. It is assumed that the infiltration of epoxy does not significantly alter the geometry of the npg network. Samples of varying structural length-scales were used, with mean ligament diameters in the range of tens to hundreds of nanometers, as achieved through isothermal annealing of npg. Quantitative analyses of the 3D reconstructions were carried out in terms of metric properties (e.g., relative density, ligament diameter distribution and specific surface area), topological properties (e.g., connectivity density), and directional properties (e.g., directional tortuosity). Importantly, representative volumes (RVs) were identified, which reflects the global structural properties of the material. It was found that npg coarsens in a nearly self-similar manner. This allows the identification of structural parameters, which can be used to describe the mechanical behavior of the global npg structure over varying length scales. FEM simulations applied to meshed RVs of the 3D reconstructions strongly suggest that the effective relative density of the load bearing ligament structure is the critical structural parameter in determining the mechanical behavior of npg structural geometry, rather than the solid relative density alone, as is often assumed. After infiltration with epoxy, the densification during deformation of npg-epoxy composites is strongly suppressed. This leads to a strongly enhanced strength compared to pure npg. However, the dependence of the yield strength on the mean ligament size is much weaker in the composite structure as compared to pure npg. The size effects in pure npg have been commonly attributed to dislocation activities within the gold ligaments, whereas in the composite material the influence of the interface on the motion of the dislocations and the epoxy chains must be considered. The interfacial behavior leads to a strengthening effect in the composites but weakens the size effects. The comparisons of the elastic moduli from the analytical models predictions, the experiments and the FEM simulations demonstrated the influences of the connectivity, the effective relative density of the load bearing ligament structure, the directional tortuosity of the ligaments and the interface on the elastic behavior of the npg-epoxy composites. Interfacial failure was experimentally observed under compression and tension. The tension-compression asymmetry investigation revealed that the npg-epoxy composite is stronger in compression than in tension. These various observations point to the important roles that the hard phase, i.e., the interconnected ligament network, the soft phase, i.e., the continuous epoxy, and the interface between them play on the mechanical behavior of npg-epoxy composites.', 'Nanoporöses Gold (NPG), ein bikontinuierliches Netzwerk aus nanoskaligen Goldligamenten und Poren, weist durch Variation der inneren Längenskalen ein abstimmbares mechanisches Verhalten auf. Allerdings ist es schwerwiegend eingeschränkt durch seinen Mangel an Verformbarkeit unter Zugspannung. Durch Infiltration der porösen Struktur mit Epoxid erhält man ein Kompositmaterial mit verbesserter Zugverformbarkeit und Fließspannung. Die vorliegende Arbeit strebt eine dreifache Untersuchung des mikromechanischen Verhaltens, der Verformungsmechanismen und des mechanischen Versagens von NPG-Epoxid Kompositen an, durch Fokussierung auf 3D Mikrostrukturcharakterisierung, Finite Elemente Simulation (FEM) und mikromechanische Prüfung. Um die Kompositmikrostruktur zu verstehen wurden hochaufgelöste 3D Rekonstruktionen mit auf fokussierten Ionenstrahlen (focused ion beam, FIB) basierter Tomographie hergestellt, möglich gemacht durch den positiven Effekt der Infiltration mit Epoxid auf die Bearbeitung poröser Medien mit FIB. Dabei wird angenommen, dass die Epoxidinfiltration die Geometrie des NPG Netzwerks nicht signifikant ändert. Proben mit unterschiedlichen strukturellen Längen wurden verwendet, d.h. mit mittleren Ligamentdurchmessern im Bereich von einigen 10 bis mehrere 100 nm, erreicht durch isothermes Anlassen. Es wurden quantitative Analysen der 3D Rekonstruktionen durchgeführt hinsichtlich der metrischen Eigenschaften (z.B. relative Dichte, Verteilungen der Ligamentdurchmesser und spezifische Oberfläche), topologischen Eigenschaften (z.B. Konnektivitätsdichten) und richtungsabhängigen Eigenschaften (z.B. Richtungstortuosität). Von großer Wichtigkeit war die Identifikation von repräsentativen Volumen (RV), die die globalen Struktureigenschaften des Materials reflektieren. Es wurde herausgefunden, dass NPG nahezu selbstähnlich vergröbert. Dies erlaubt die Identifizierung struktureller Größen, die zur Beschreibung des mechanischen Verhaltens globaler NPG Strukturen über variierende Längenskalen verwendet werden können. FEM Simulationen angewendet auf vermaschte RV der 3D Rekonstruktionen weisen stark darauf hin, dass die effektive relative Dichte der lasttragenden Ligamentstruktur die kritische Größe in der Bestimmung des mechanischen Verhaltens der NPG Strukturgeometrie ist, eher als die relative Dichte der festen Phase wie oft angenommen. Nach der Infiltration mit Epoxid ist die Verdichtung von NPG-Epoxid Kompositen unter Verformung stark unterdrückt. Dies führt zu einer stark verbesserten Festigkeit im Vergleich zu reinem NPG. Allerdings ist die Abhängigkeit der Fließgrenze von der mittleren Ligamentgröße viel schwächer in der Kompositstruktur verglichen mit reinem NPG. Die Größeneffekte in reinem NPG sind üblicherweise Versetzungsaktivitäten in den Goldligamenten zugeordnet worden, wogegen im Kompositmaterial der Einfluss der Grenzfläche auf die Versetzungsbewegung und die Epoxidketten in Betracht gezogen werden muss. Das Grenzflächenverhalten führt zu einem Verstärkungseffekt in den Kompositen aber schwächt die Größeneffekte ab. Die Vergleiche der Elastizitätsmoduln aus den Vorhersagen der analytischen Modelle, den Experimenten und der FEM Simulationen demonstrierten die Einflüsse der Konnektivität, der effektiven relativen Dichte der lasttragenden Ligamentstruktur, der Richtungstortuosität der Ligamente und der Grenzfläche auf das elastische Verhalten der NPG-Epoxid Komposite. Grenzflächenversagen wurde experimentell beobachtet unter Kompression und Zug. Die Untersuchung der Zug-Druck Asymmetrie zeigte, dass das NPG-Epoxid Komposit stärker unter Druck als unter Zug ist. Diese unterschiedlichen Beobachtungen zeigen die wichtigen Rollen auf, die die harte Phase, also das verknüpfte Ligamentnetzwerk, die weiche Phase, d.h. das kontinuierliche Epoxid, und die Grenzfläche zwischen ihnen für das mechanische Verhalten von NPG-Epoxid Komposite spielen.']] ### GND ID: ['gnd:10194308-8', 'gnd:1076028772', 'gnd:1138805939', 'gnd:2067664-5', 'gnd:4062670-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880948493'] ### GND class: ['Technische Universität Hamburg-Harburg, Institut für Keramische Hochleistungswerkstoffe', 'Werkstoffmechanik', 'Lilleodden, Erica', 'Technische Universität Hamburg-Harburg', 'Verbundwerkstoff'] <|eot_id|>
3A880980486.jsonld
['Interaktionsgestaltung frühpädagogischer Fachkräfte in Kindertageseinrichtungen']
['Interaktionsgestaltung, Interaktionsqualität, frühkindliche Bildung, Betreuung und Erziehung, Videostudie. - Teacher-child interaction, interaction quality, early childhood education and care, video study']
['gnd:4015482-8', 'gnd:4030638-0', 'gnd:4064016-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880980486']
['Erziehung', 'Kindertagesstätte', 'Vorschulerziehung', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Interaktionsgestaltung frühpädagogischer Fachkräfte in Kindertageseinrichtungen'] ### Abstract: ['Interaktionsgestaltung, Interaktionsqualität, frühkindliche Bildung, Betreuung und Erziehung, Videostudie. - Teacher-child interaction, interaction quality, early childhood education and care, video study'] ### GND ID: ['gnd:4015482-8', 'gnd:4030638-0', 'gnd:4064016-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880980486'] ### GND class: ['Erziehung', 'Kindertagesstätte', 'Vorschulerziehung', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A880983566.jsonld
['On lubrication and friction in soft rough conformal sliding contacts : experimental and theoretical contributions to the discussion on elastomer shaft seal tribology']
['Soft micro-elastohydrodynamic lubrication, mixed lubrication, friction in lubricated elastomeric contacts, elastomeric radial lip seal, fluid-structure interaction. - Weiche mikro-elastohydrodynamische Schmierung, Mischreibung, Reibung in geschmierten Elastomerkontakten, elastomerer Radialwellendichtring, Fluid-Struktur-Interaktion']
['gnd:172099080', 'gnd:4060847-5', 'gnd:4798356-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880983566']
['Glasmacher, Birgit', 'Tribologie', 'Kontaktmechanik', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['On lubrication and friction in soft rough conformal sliding contacts : experimental and theoretical contributions to the discussion on elastomer shaft seal tribology'] ### Abstract: ['Soft micro-elastohydrodynamic lubrication, mixed lubrication, friction in lubricated elastomeric contacts, elastomeric radial lip seal, fluid-structure interaction. - Weiche mikro-elastohydrodynamische Schmierung, Mischreibung, Reibung in geschmierten Elastomerkontakten, elastomerer Radialwellendichtring, Fluid-Struktur-Interaktion'] ### GND ID: ['gnd:172099080', 'gnd:4060847-5', 'gnd:4798356-5', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880983566'] ### GND class: ['Glasmacher, Birgit', 'Tribologie', 'Kontaktmechanik', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A880988304.jsonld
['Preparation and properties of high dose nitrogen implanted epitaxially grown gadolinium oxide on silicon']
['Nitridation, Gadolinium oxide (Gd2O3), nitride and oxynitide, ion implantation. - Nitridierung, Gadoliniumoxid, Nitrid und Oxynitrid, Ionenimplantation']
['gnd:106952591X', 'gnd:143765760', 'gnd:4277527-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880988304']
['Osten, H. Jörg', 'Wietler, Tobias', 'Seltenerdoxide', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Preparation and properties of high dose nitrogen implanted epitaxially grown gadolinium oxide on silicon'] ### Abstract: ['Nitridation, Gadolinium oxide (Gd2O3), nitride and oxynitide, ion implantation. - Nitridierung, Gadoliniumoxid, Nitrid und Oxynitrid, Ionenimplantation'] ### GND ID: ['gnd:106952591X', 'gnd:143765760', 'gnd:4277527-9', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A880988304'] ### GND class: ['Osten, H. Jörg', 'Wietler, Tobias', 'Seltenerdoxide', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A881200948.jsonld
['Emotions, remembering and feeling better : dealing with the Indian Residential Schools Settlement Agreement in Canada']
["As the largest class action suit in Canadian history, the Indian Residential Schools Settlement Agreement (2007-2015) had a great impact on the lives of Aboriginal survivors across Canada. In a rare account exploring survivor perspectives, Anne-Marie Reynaud considers the settlement's reconciliatory aspiration in conjunction with the local reality for the Mitchikanibikok Inik First Nations in Quebec. Drawing from anthropological fieldwork, this carefully crafted book weaves survivor experiences of the financial compensations and the Truth and Reconciliation Commission together with current theorizing on emotions, memory, trauma and transitional justice"]
['gnd:1164816977', 'gnd:16008116-6', 'gnd:4027316-7', 'gnd:4029456-0', 'gnd:4030550-8', 'gnd:4030650-1', 'gnd:4033542-2', 'gnd:4061672-1', 'gnd:4079700-4', 'gnd:4136959-2', 'gnd:4257314-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881200948']
['Reynaud, Anne-Marie', 'Kanada Indian Residential Schools Truth and Reconciliation Commission', 'Internat', 'Kanada', 'Kind', 'Kindesmisshandlung', 'Kulturelle Identität', 'Vergangenheitsbewältigung', 'Algonkin', 'Wiedergutmachung', 'Unterdrückung']
Document ### Title: ['Emotions, remembering and feeling better : dealing with the Indian Residential Schools Settlement Agreement in Canada'] ### Abstract: ["As the largest class action suit in Canadian history, the Indian Residential Schools Settlement Agreement (2007-2015) had a great impact on the lives of Aboriginal survivors across Canada. In a rare account exploring survivor perspectives, Anne-Marie Reynaud considers the settlement's reconciliatory aspiration in conjunction with the local reality for the Mitchikanibikok Inik First Nations in Quebec. Drawing from anthropological fieldwork, this carefully crafted book weaves survivor experiences of the financial compensations and the Truth and Reconciliation Commission together with current theorizing on emotions, memory, trauma and transitional justice"] ### GND ID: ['gnd:1164816977', 'gnd:16008116-6', 'gnd:4027316-7', 'gnd:4029456-0', 'gnd:4030550-8', 'gnd:4030650-1', 'gnd:4033542-2', 'gnd:4061672-1', 'gnd:4079700-4', 'gnd:4136959-2', 'gnd:4257314-2', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881200948'] ### GND class: ['Reynaud, Anne-Marie', 'Kanada Indian Residential Schools Truth and Reconciliation Commission', 'Internat', 'Kanada', 'Kind', 'Kindesmisshandlung', 'Kulturelle Identität', 'Vergangenheitsbewältigung', 'Algonkin', 'Wiedergutmachung', 'Unterdrückung'] <|eot_id|>
3A881242357.jsonld
['Linear polarisierte Mikrowellen in der breitbandigen, hochauflösenden Rotationsspektroskopie an zyklischen organischen Molekülen']
['IMPACT-FT-MW-Spektrometer, Mikrowellenspektroskopie, Rotationsspektroskopie, lineare Polarisation, interne Dynamik, Konformationsvariabilität, großamplitudige Bewegungen, (Hyper-)Feinstruktur, Cycloheptan-Derivate. - IMPACT-FT-MW-spectrometer, microwave spectroscopy, rotational spectroscopy, linear polarization, internal dynamics, conformational variability, large amplitude motions, (hyper-)finestructure, cycloheptane derivatives']
['gnd:113413572', 'gnd:131454617', 'gnd:4169895-2', 'gnd:4178507-1', 'gnd:4351759-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881242357']
['Grabow, Jens-Uwe', 'Renz, Franz', 'Mikrowellenspektroskopie', 'Rotationsspektrum', 'Cycloheptanderivate', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Linear polarisierte Mikrowellen in der breitbandigen, hochauflösenden Rotationsspektroskopie an zyklischen organischen Molekülen'] ### Abstract: ['IMPACT-FT-MW-Spektrometer, Mikrowellenspektroskopie, Rotationsspektroskopie, lineare Polarisation, interne Dynamik, Konformationsvariabilität, großamplitudige Bewegungen, (Hyper-)Feinstruktur, Cycloheptan-Derivate. - IMPACT-FT-MW-spectrometer, microwave spectroscopy, rotational spectroscopy, linear polarization, internal dynamics, conformational variability, large amplitude motions, (hyper-)finestructure, cycloheptane derivatives'] ### GND ID: ['gnd:113413572', 'gnd:131454617', 'gnd:4169895-2', 'gnd:4178507-1', 'gnd:4351759-6', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881242357'] ### GND class: ['Grabow, Jens-Uwe', 'Renz, Franz', 'Mikrowellenspektroskopie', 'Rotationsspektrum', 'Cycloheptanderivate', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A881263850.jsonld
['Zum Verhalten wässriger Aminlösungen in der absorptiven Gasaufbereitung']
[['The main focus of this work is the investigation of the thermal degradation rates, the kinetics of the degradation, the influence of CO2, the foam behavior, the physical parameters (dynamic viscosity and surface tension) and the corrosiveness of aqueous activated and non-activated N-methyldiethanolamine solutions (MDEA). The secondary amines piperazine (PZ), morpholine (MP) and N-(2-aminoethyl) ethanolamine (AEEA) functioned as activators. The influences of the temperature on the degradation rate and of single degradation products of the thermal aging on the foam formation were analyzed, before the foaming behavior (foaming potential and foam decay rate) of the selected samples was investigated at the laboratory and technical scale. <engl.>', 'Die thematischen Schwerpunkte dieser Arbeit beinhalten die Erforschung der thermischen Abbauraten, die Kinetik des Abbaus, den CO2 Einfluss, das Schaumverhalten, die physikalischen Parameter (dynamische Viskosität und Oberflächenspannung) und die Korrosivität wässriger aktivierter und unaktivierter N-Methyldiethanolamin-Lösungen (MDEA). Die sekundären Amine Piperazin (PZ), Morpholin (MP) und N- (2-Aminoethyl) ethanolamin (AEEA) fungierten als Aktivatoren. Die Einflüsse der Temperatur auf die Abbaugeschwindigkeit und der einzelnen Abbauprodukte der thermischen Alterung auf die Schaumbildung wurden analysiert, bevor im Labor- und Technikumsmaßstab präparativ das Schaumverhalten (Schäumungspotential und Schaumzerfallsrate) ausgewählter Proben untersucht wurde. <dt.>']]
['gnd:1121239978', 'gnd:17200974X', 'gnd:4001705-9', 'gnd:4003500-1', 'gnd:4019320-2', 'gnd:4116373-4', 'gnd:4124928-8', 'gnd:4814350-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881263850']
['Martens, Jürgen', 'Brehm, Axel', 'Amine', 'Aufbereitung', 'Gas', 'Schaumbildung', 'Wässrige Lösung', 'Methyliminodiethanol (N-Methyl-2,2`-iminodiethanol)']
Document ### Title: ['Zum Verhalten wässriger Aminlösungen in der absorptiven Gasaufbereitung'] ### Abstract: [['The main focus of this work is the investigation of the thermal degradation rates, the kinetics of the degradation, the influence of CO2, the foam behavior, the physical parameters (dynamic viscosity and surface tension) and the corrosiveness of aqueous activated and non-activated N-methyldiethanolamine solutions (MDEA). The secondary amines piperazine (PZ), morpholine (MP) and N-(2-aminoethyl) ethanolamine (AEEA) functioned as activators. The influences of the temperature on the degradation rate and of single degradation products of the thermal aging on the foam formation were analyzed, before the foaming behavior (foaming potential and foam decay rate) of the selected samples was investigated at the laboratory and technical scale. <engl.>', 'Die thematischen Schwerpunkte dieser Arbeit beinhalten die Erforschung der thermischen Abbauraten, die Kinetik des Abbaus, den CO2 Einfluss, das Schaumverhalten, die physikalischen Parameter (dynamische Viskosität und Oberflächenspannung) und die Korrosivität wässriger aktivierter und unaktivierter N-Methyldiethanolamin-Lösungen (MDEA). Die sekundären Amine Piperazin (PZ), Morpholin (MP) und N- (2-Aminoethyl) ethanolamin (AEEA) fungierten als Aktivatoren. Die Einflüsse der Temperatur auf die Abbaugeschwindigkeit und der einzelnen Abbauprodukte der thermischen Alterung auf die Schaumbildung wurden analysiert, bevor im Labor- und Technikumsmaßstab präparativ das Schaumverhalten (Schäumungspotential und Schaumzerfallsrate) ausgewählter Proben untersucht wurde. <dt.>']] ### GND ID: ['gnd:1121239978', 'gnd:17200974X', 'gnd:4001705-9', 'gnd:4003500-1', 'gnd:4019320-2', 'gnd:4116373-4', 'gnd:4124928-8', 'gnd:4814350-9', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881263850'] ### GND class: ['Martens, Jürgen', 'Brehm, Axel', 'Amine', 'Aufbereitung', 'Gas', 'Schaumbildung', 'Wässrige Lösung', 'Methyliminodiethanol (N-Methyl-2,2`-iminodiethanol)'] <|eot_id|>
3A881265705.jsonld
['Object-Oriented Modeling and Coordination of Mobile Robots']
['...The main contribution of this work is an approach that allows the object-oriented modeling and coordination of mobile robots, supporting the cooperation of mobile manipulators. Within a mobile manipulator, the approach allows to define real-time reactions to sensor data and to synchronize the different actuators and sensors present, allowing sensor-aware combinations of motions for platform and arm. Moreover, the approach facilitates an easy way of programming, provides means to handle kinematic restrictions or redundancy, and supports advanced capabilities such as impedance control to mitigate position uncertainty. Working with multiple independent mobile robots, each has a different knowledge about its environment, based on the available sensors. These different views are modeled, allowing consistent coordination of robots in applications using the data available on each robot. To cope with geometric uncertainty, sensors are modeled and the relationship between their measurements and geometric aspects is defined. Based on these definitions and incoming sensor data, position estimates are automatically derived. Additionally, the more dynamic environment leads to different possible outcomes of task execution. These are explicitly modeled and can be used to define reactive behavior. The approach was successfully evaluated based on two application examples, ranging from physical interaction between two mobile manipulators handing over a work-piece to gesture control of a quadcopter for carrying goods.']
['gnd:4121677-5', 'gnd:4191911-7', 'gnd:4250471-5', 'gnd:7732064-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881265705']
['Softwarearchitektur', 'Mobiler Roboter', 'Umweltmodell (Informatik)', 'Objektorientiertes Design']
Document ### Title: ['Object-Oriented Modeling and Coordination of Mobile Robots'] ### Abstract: ['...The main contribution of this work is an approach that allows the object-oriented modeling and coordination of mobile robots, supporting the cooperation of mobile manipulators. Within a mobile manipulator, the approach allows to define real-time reactions to sensor data and to synchronize the different actuators and sensors present, allowing sensor-aware combinations of motions for platform and arm. Moreover, the approach facilitates an easy way of programming, provides means to handle kinematic restrictions or redundancy, and supports advanced capabilities such as impedance control to mitigate position uncertainty. Working with multiple independent mobile robots, each has a different knowledge about its environment, based on the available sensors. These different views are modeled, allowing consistent coordination of robots in applications using the data available on each robot. To cope with geometric uncertainty, sensors are modeled and the relationship between their measurements and geometric aspects is defined. Based on these definitions and incoming sensor data, position estimates are automatically derived. Additionally, the more dynamic environment leads to different possible outcomes of task execution. These are explicitly modeled and can be used to define reactive behavior. The approach was successfully evaluated based on two application examples, ranging from physical interaction between two mobile manipulators handing over a work-piece to gesture control of a quadcopter for carrying goods.'] ### GND ID: ['gnd:4121677-5', 'gnd:4191911-7', 'gnd:4250471-5', 'gnd:7732064-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881265705'] ### GND class: ['Softwarearchitektur', 'Mobiler Roboter', 'Umweltmodell (Informatik)', 'Objektorientiertes Design'] <|eot_id|>
3A881269301.jsonld
['Preparation and characterization of cuprous oxide thin films using low-temperature scanning tunneling microscopy']
[['This work provides atomic scale insight into the nature of Cu2O surfaces. Cu2O thin films of up to 5nm thickness were prepared by evaporating copper in an oxygen atmosphere of 10 -6 mbar. Gold and Molybdenum were used as chemically inert and reactive substrates respectively. The samples were analysed in a Scanning Tunneling Microscope (STM) showing the structure of the Cu2O surface at an atomic level. Scanning Tunneling Spectroscopy (STS) has been used to explore the electronic structure. Additionally X-ray Photoelectron Spectroscopy (XPS) was used to determine the chemical composition of the films. On Au(111) flat and homogeneous Cu2O films with a variety of surface structures have been obtained. The electronic and stoichiometric results have been compared to calculations from Density Functional Theory (DFT). The most common surface structure (called the hexagonal phase) resembles the bulk Cu2O(111) termination. The preparation on a Mo(001) substrate yielded well ordered Cu nano-particles. In this case the decrease in surface energy from Mo(001) to MoOx was found to be responsible for Cu particle growth according to the Wulff-Theorem. <engl.>', 'Diese Arbeit liefert Einsichten in die Natur der Cu2O Oberflächen auf atomarer Ebene. Cu2O Dünnschichten wurden mit einer Dicke von bis zu 5nm durch das Verdampfen von Kupfer in einer 10 -6 mbar Sauerstoffatmosphere hergestellt. Gold und Molybdän wurden als chemisch inertes und reaktives Substrat benutzt. Die Proben wurden mit Hilfe eines Rastertunnelmikroskops (STM), welches die Struktur der Oberfläche mit atomarer Auflösung zeigt, analysiert. Tunnelspektroskopie (STS) wurde genutzt, um die elektronische Struktur zu untersuchen. Für die chemische Analyse genutzt wurde Röntgensprektroskopie (XPS) genutzt. Auf Au(111) wurden flache, homogene Cu2O Schichten mit unterschiedlichen Oberflächenstrukturen gefunden. Die elektronischen und stoichiometrischen Resultate wurden mit Rechnungen der Dichtefunktionaltheorie (DFT) erklärt. Die häufigste Oberfläche (hexagonale Phase) ähnelt der Volumentermination von Cu2O(111). Auf einem Mo(001) Kristall führte die Präparation zu wohlgeordneten Cu-Nanopartikeln. Die Absenkung der Oberflächenenergie von Mo(001) zu MoOx ist hier gemäß des Wulff-Theorems verantwortlich für das Partikelwachstum. <dt.>']]
['gnd:1145860370', 'gnd:123411432', 'gnd:4050331-8', 'gnd:4136339-5', 'gnd:4140095-1', 'gnd:4166141-2', 'gnd:4186449-9', 'gnd:4252995-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881269301']
['Kittel, Achim', 'Nilius, Niklas', 'Röntgenspektroskopie', 'Dünnschichttechnik', 'Oberflächenreaktion', 'Kupferoxide', 'Tunnelspektroskopie', 'Rastertunnelmikroskopie']
Document ### Title: ['Preparation and characterization of cuprous oxide thin films using low-temperature scanning tunneling microscopy'] ### Abstract: [['This work provides atomic scale insight into the nature of Cu2O surfaces. Cu2O thin films of up to 5nm thickness were prepared by evaporating copper in an oxygen atmosphere of 10 -6 mbar. Gold and Molybdenum were used as chemically inert and reactive substrates respectively. The samples were analysed in a Scanning Tunneling Microscope (STM) showing the structure of the Cu2O surface at an atomic level. Scanning Tunneling Spectroscopy (STS) has been used to explore the electronic structure. Additionally X-ray Photoelectron Spectroscopy (XPS) was used to determine the chemical composition of the films. On Au(111) flat and homogeneous Cu2O films with a variety of surface structures have been obtained. The electronic and stoichiometric results have been compared to calculations from Density Functional Theory (DFT). The most common surface structure (called the hexagonal phase) resembles the bulk Cu2O(111) termination. The preparation on a Mo(001) substrate yielded well ordered Cu nano-particles. In this case the decrease in surface energy from Mo(001) to MoOx was found to be responsible for Cu particle growth according to the Wulff-Theorem. <engl.>', 'Diese Arbeit liefert Einsichten in die Natur der Cu2O Oberflächen auf atomarer Ebene. Cu2O Dünnschichten wurden mit einer Dicke von bis zu 5nm durch das Verdampfen von Kupfer in einer 10 -6 mbar Sauerstoffatmosphere hergestellt. Gold und Molybdän wurden als chemisch inertes und reaktives Substrat benutzt. Die Proben wurden mit Hilfe eines Rastertunnelmikroskops (STM), welches die Struktur der Oberfläche mit atomarer Auflösung zeigt, analysiert. Tunnelspektroskopie (STS) wurde genutzt, um die elektronische Struktur zu untersuchen. Für die chemische Analyse genutzt wurde Röntgensprektroskopie (XPS) genutzt. Auf Au(111) wurden flache, homogene Cu2O Schichten mit unterschiedlichen Oberflächenstrukturen gefunden. Die elektronischen und stoichiometrischen Resultate wurden mit Rechnungen der Dichtefunktionaltheorie (DFT) erklärt. Die häufigste Oberfläche (hexagonale Phase) ähnelt der Volumentermination von Cu2O(111). Auf einem Mo(001) Kristall führte die Präparation zu wohlgeordneten Cu-Nanopartikeln. Die Absenkung der Oberflächenenergie von Mo(001) zu MoOx ist hier gemäß des Wulff-Theorems verantwortlich für das Partikelwachstum. <dt.>']] ### GND ID: ['gnd:1145860370', 'gnd:123411432', 'gnd:4050331-8', 'gnd:4136339-5', 'gnd:4140095-1', 'gnd:4166141-2', 'gnd:4186449-9', 'gnd:4252995-5', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881269301'] ### GND class: ['Kittel, Achim', 'Nilius, Niklas', 'Röntgenspektroskopie', 'Dünnschichttechnik', 'Oberflächenreaktion', 'Kupferoxide', 'Tunnelspektroskopie', 'Rastertunnelmikroskopie'] <|eot_id|>
3A881537209.jsonld
["The romantic idea of the Golden Age in Friedrich Schlegel's Philosophy of history"]
['Part I. The golden age and primitivism -- The savages -- Prometheus and Orpheus -- Atlantis -- Part II. The blossoming and decline of culture -- The age of blossoming in Athens -- Alexandria -- Part III. The problem of a national golden age -- The Roman model: golden age as a modern disease -- From classicism to romanticism -- Part IV. Kingdom of God -- German tradition of chiliasm -- From eschatology to kairology -- The gospel of nature -- Medievalism as the externalisation of the golden age -- Conclusion']
['gnd:1013659-9', 'gnd:1127610481', 'gnd:118607987', 'gnd:4020529-0', 'gnd:4132130-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881537209']
['Turun yliopisto', 'Nivala, Asko', ['Schlegel, Friedrich', 'Schlegel, Friedrich von 1772-1829'], 'Geschichtsphilosophie', 'Goldenes Zeitalter']
Document ### Title: ["The romantic idea of the Golden Age in Friedrich Schlegel's Philosophy of history"] ### Abstract: ['Part I. The golden age and primitivism -- The savages -- Prometheus and Orpheus -- Atlantis -- Part II. The blossoming and decline of culture -- The age of blossoming in Athens -- Alexandria -- Part III. The problem of a national golden age -- The Roman model: golden age as a modern disease -- From classicism to romanticism -- Part IV. Kingdom of God -- German tradition of chiliasm -- From eschatology to kairology -- The gospel of nature -- Medievalism as the externalisation of the golden age -- Conclusion'] ### GND ID: ['gnd:1013659-9', 'gnd:1127610481', 'gnd:118607987', 'gnd:4020529-0', 'gnd:4132130-3', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881537209'] ### GND class: ['Turun yliopisto', 'Nivala, Asko', ['Schlegel, Friedrich', 'Schlegel, Friedrich von 1772-1829'], 'Geschichtsphilosophie', 'Goldenes Zeitalter'] <|eot_id|>
3A881585130.jsonld
['Laser flash photolysis and EPR spectroscopy investigaions of bare and lanthanum doped NaTaO3 powders']
['Sodium tantalate, photocatalysis, laser flash photolysis, trapped charge carriers, EPR. - Natriumtantalat, Photokatalyse, Laser Blitz Photolyse, getrappte Ladungsträger']
['gnd:1069292419', 'gnd:1148986146', 'gnd:171963172', 'gnd:4132116-9', 'gnd:4184422-1', 'gnd:4655902-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881585130']
['Scheper, Thomas', 'Esteban Mollá, María Pilar', 'Bahnemann, Detlef', 'Elektronenspinresonanz', 'Tantalate', 'Laserphotolyse', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Laser flash photolysis and EPR spectroscopy investigaions of bare and lanthanum doped NaTaO3 powders'] ### Abstract: ['Sodium tantalate, photocatalysis, laser flash photolysis, trapped charge carriers, EPR. - Natriumtantalat, Photokatalyse, Laser Blitz Photolyse, getrappte Ladungsträger'] ### GND ID: ['gnd:1069292419', 'gnd:1148986146', 'gnd:171963172', 'gnd:4132116-9', 'gnd:4184422-1', 'gnd:4655902-4', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881585130'] ### GND class: ['Scheper, Thomas', 'Esteban Mollá, María Pilar', 'Bahnemann, Detlef', 'Elektronenspinresonanz', 'Tantalate', 'Laserphotolyse', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A881607320.jsonld
['Quantifying fluvial and glacial erosion using (detrital) thermochronology, cosmogenic nuclides and numerical modelling : a case study in the European Alps']
['Alpine landscape evolution, glacial erosion, thermochronology. - Alpine Landschaftsentwicklung, glaziale Erosion, Thermochronologie']
['gnd:1132208890', 'gnd:4001328-5', 'gnd:4034348-0', 'gnd:4157504-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881607320']
['Wangenheim, Cornelia', 'Alpen', 'Landschaftsentwicklung', 'Glazialerosion', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Quantifying fluvial and glacial erosion using (detrital) thermochronology, cosmogenic nuclides and numerical modelling : a case study in the European Alps'] ### Abstract: ['Alpine landscape evolution, glacial erosion, thermochronology. - Alpine Landschaftsentwicklung, glaziale Erosion, Thermochronologie'] ### GND ID: ['gnd:1132208890', 'gnd:4001328-5', 'gnd:4034348-0', 'gnd:4157504-0', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881607320'] ### GND class: ['Wangenheim, Cornelia', 'Alpen', 'Landschaftsentwicklung', 'Glazialerosion', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A881659649.jsonld
['Metabolomic analysis, isolation, characterization and synthesis of bioactive compounds from Hypericum species (Hypericaceae)']
[['How can we discover new bioactive compounds from complex mixtures, e.g. medicinal plant extracts, prior to any isolation? Natural products are an important source of drugs. However, their discovery is hindered by many challenges including the high rediscovery rate and time consuming work. Methods used so far fail to consider the structural novelty. This work describes comparative metabolomic approaches based on three independent analytical methods (1H NMR, 2D NMR and LC-MS) to detect, prior to any isolation, extracts containing novel compounds as revealed by multivariate data analysis and discriminatory MS/NMR signals. These new holistic methods were applied to compare 17 Hypericum species. Novel natural products from selected extracts were isolated guided by their NMR/MS signals. The investigation of 3 prioritized species resulted in the isolation and characterization of 23 new natural products.The structures of isolated compounds were established by NMR and HR-MS data supported by chemical synthesis and ECD calculations for absolute configuration determination. Notably, novel and significantly anti-HIV active compounds were found from H. roeperianum.', 'Wie können wir neue bioaktive Naturstoffe aus komplexen Mischungen (z.B. Pflanzenextrakte) ohne vorherige Isolierung finden? Obwohl Naturstoffe eine reichhaltige Quelle für Arzneistoffe sind, wird ihre Entdeckung durch viele Herausforderungen behindert, darunter die hohe Wiederentdeckungsrate und zeitraubende Isolierungsarbeit. Bisherige Methoden vermeiden nicht die wiederholte Charakterisierung von bekannten Naturstoffen. Die vorliegende Arbeit beschreibt Metabolomik-Ansätze basierend auf LC MS, 1D und 2D NMR zur Identifizierung von Extrakten mit dem höchsten Anteil an neuartigen Naturstoffen. Unter Verwendung dieser neuen Herangehensweise wurden 17 Vertreter der Gattung Hypericum analysiert. Die chemische Untersuchung von drei ausgewählten Hypericum-Artenlieferte 23 neue Naturstoffe. Die Strukturen der isolierten Verbindungen wurden durch MS, NMR, berechnete CD-Spektren sowie Totalsynthese bestimmt. Ein neues dimeres Cumarin aus H. roeperianum zeigt starke anti-HIV-Aktivität. Diese Verbindung ist aktiver als die jeweiligen Referenz-Substanzen und könnte daher Ansatzpunkte für neue Wirkstoffe gegen HI Viren bieten.', 'Dereplikation; Metabolitenprofiling; Hypericum; Johanniskraut; prenylierte Acylphloroglucinole; Biscoumarine; anti-HIV Naturstoffe; anthelmintische Verbindungen', 'Dereplication; metabolomics; Hypericum; St. John’s wort; prenylated acylphloroglucinols; biscoumarin; anti-HIV natural products; anthelmintics']]
['gnd:1206295856', 'gnd:2024276-1', 'gnd:4142630-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881659649']
['Beerhues, Ludger', 'Martin-Luther-Universität Halle-Wittenberg', 'Anthrachinon']
Document ### Title: ['Metabolomic analysis, isolation, characterization and synthesis of bioactive compounds from Hypericum species (Hypericaceae)'] ### Abstract: [['How can we discover new bioactive compounds from complex mixtures, e.g. medicinal plant extracts, prior to any isolation? Natural products are an important source of drugs. However, their discovery is hindered by many challenges including the high rediscovery rate and time consuming work. Methods used so far fail to consider the structural novelty. This work describes comparative metabolomic approaches based on three independent analytical methods (1H NMR, 2D NMR and LC-MS) to detect, prior to any isolation, extracts containing novel compounds as revealed by multivariate data analysis and discriminatory MS/NMR signals. These new holistic methods were applied to compare 17 Hypericum species. Novel natural products from selected extracts were isolated guided by their NMR/MS signals. The investigation of 3 prioritized species resulted in the isolation and characterization of 23 new natural products.The structures of isolated compounds were established by NMR and HR-MS data supported by chemical synthesis and ECD calculations for absolute configuration determination. Notably, novel and significantly anti-HIV active compounds were found from H. roeperianum.', 'Wie können wir neue bioaktive Naturstoffe aus komplexen Mischungen (z.B. Pflanzenextrakte) ohne vorherige Isolierung finden? Obwohl Naturstoffe eine reichhaltige Quelle für Arzneistoffe sind, wird ihre Entdeckung durch viele Herausforderungen behindert, darunter die hohe Wiederentdeckungsrate und zeitraubende Isolierungsarbeit. Bisherige Methoden vermeiden nicht die wiederholte Charakterisierung von bekannten Naturstoffen. Die vorliegende Arbeit beschreibt Metabolomik-Ansätze basierend auf LC MS, 1D und 2D NMR zur Identifizierung von Extrakten mit dem höchsten Anteil an neuartigen Naturstoffen. Unter Verwendung dieser neuen Herangehensweise wurden 17 Vertreter der Gattung Hypericum analysiert. Die chemische Untersuchung von drei ausgewählten Hypericum-Artenlieferte 23 neue Naturstoffe. Die Strukturen der isolierten Verbindungen wurden durch MS, NMR, berechnete CD-Spektren sowie Totalsynthese bestimmt. Ein neues dimeres Cumarin aus H. roeperianum zeigt starke anti-HIV-Aktivität. Diese Verbindung ist aktiver als die jeweiligen Referenz-Substanzen und könnte daher Ansatzpunkte für neue Wirkstoffe gegen HI Viren bieten.', 'Dereplikation; Metabolitenprofiling; Hypericum; Johanniskraut; prenylierte Acylphloroglucinole; Biscoumarine; anti-HIV Naturstoffe; anthelmintische Verbindungen', 'Dereplication; metabolomics; Hypericum; St. John’s wort; prenylated acylphloroglucinols; biscoumarin; anti-HIV natural products; anthelmintics']] ### GND ID: ['gnd:1206295856', 'gnd:2024276-1', 'gnd:4142630-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881659649'] ### GND class: ['Beerhues, Ludger', 'Martin-Luther-Universität Halle-Wittenberg', 'Anthrachinon'] <|eot_id|>
3A881977330.jsonld
['Homeschooling : eine verfassungsrechtliche Untersuchung des Rechts der Eltern, ihre Kinder zu Hause zu unterrichten']
[['The author assesses the question whether the German homeschooling ban is reconcilable with constitutional law. For this purpose, the author focuses on a detailed analysis of the interrelation between parental responsibility for the upbringing of the children and the public mandate for education. This analysis shows in particular that in protecting both the legitimate interests of the children and of the public community the legislator has ample possibilities other than simply prohibiting the practice of homeschooling. The author concludes that the legislators in the German Länder have to take on this regulatory task and create legal options for homeschooling.', 'Der Autor untersucht, ob sich das in Deutschland geltende Verbot von Homeschooling verfassungsrechtlich halten lässt. Im Zentrum steht dabei eine detaillierte Analyse des Verhältnisses zwischen elterlicher Verantwortung für die Erziehung der Kinder und öffentlichem Bildungs- und Erziehungsauftrag. Dabei zeigt sich insbesondere, dass dem Gesetzgeber zahlreiche Möglichkeiten offenstehen, die schutzwürdigen Interessen der Kinder und der staatlichen Gemeinschaft zu wahren, ohne häuslichen Schulunterricht schlichtweg zu verbieten. Der Autor kommt zu dem Ergebnis, dass die Landesgesetzgeber dazu aufgefordert sind, diese Regulierungsaufgabe wahrzunehmen und eine legale Option für Homeschooling im Schulrecht zu verankern.']]
['gnd:4011882-4', 'gnd:4020682-8', 'gnd:4062801-2', 'gnd:4121517-5', 'gnd:4145460-1', 'gnd:4152988-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881977330']
['Deutschland', 'Gesetzgebung', 'Verfassungsrecht', 'Hausunterricht', 'Bildungsauftrag', 'Erziehungsauftrag']
Document ### Title: ['Homeschooling : eine verfassungsrechtliche Untersuchung des Rechts der Eltern, ihre Kinder zu Hause zu unterrichten'] ### Abstract: [['The author assesses the question whether the German homeschooling ban is reconcilable with constitutional law. For this purpose, the author focuses on a detailed analysis of the interrelation between parental responsibility for the upbringing of the children and the public mandate for education. This analysis shows in particular that in protecting both the legitimate interests of the children and of the public community the legislator has ample possibilities other than simply prohibiting the practice of homeschooling. The author concludes that the legislators in the German Länder have to take on this regulatory task and create legal options for homeschooling.', 'Der Autor untersucht, ob sich das in Deutschland geltende Verbot von Homeschooling verfassungsrechtlich halten lässt. Im Zentrum steht dabei eine detaillierte Analyse des Verhältnisses zwischen elterlicher Verantwortung für die Erziehung der Kinder und öffentlichem Bildungs- und Erziehungsauftrag. Dabei zeigt sich insbesondere, dass dem Gesetzgeber zahlreiche Möglichkeiten offenstehen, die schutzwürdigen Interessen der Kinder und der staatlichen Gemeinschaft zu wahren, ohne häuslichen Schulunterricht schlichtweg zu verbieten. Der Autor kommt zu dem Ergebnis, dass die Landesgesetzgeber dazu aufgefordert sind, diese Regulierungsaufgabe wahrzunehmen und eine legale Option für Homeschooling im Schulrecht zu verankern.']] ### GND ID: ['gnd:4011882-4', 'gnd:4020682-8', 'gnd:4062801-2', 'gnd:4121517-5', 'gnd:4145460-1', 'gnd:4152988-1', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881977330'] ### GND class: ['Deutschland', 'Gesetzgebung', 'Verfassungsrecht', 'Hausunterricht', 'Bildungsauftrag', 'Erziehungsauftrag'] <|eot_id|>
3A881977683.jsonld
['Essays on nonlinearities in time series : regime switching, outlying observations, and changes in persistence']
['Information criteria, nonlinearity, additive outliers, innovative outliers, change in persistence, outlier detection. - Informationskriterien, Nichtlinearität, additive Ausreißer, innovative Ausreißer, Persistenzbruch, Ausreißerermittlung']
['gnd:1126258431', 'gnd:171295137', 'gnd:4067486-1', 'gnd:4304586-8', 'gnd:4510494-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881977683']
['Sibbertsen, Philipp', 'Grote, Ulrike', 'Zeitreihenanalyse', 'Nichtlineare Zeitreihe', 'Ausreißer (Statistik)', 'Gottfried Wilhelm Leibniz Universität Hannover']
Document ### Title: ['Essays on nonlinearities in time series : regime switching, outlying observations, and changes in persistence'] ### Abstract: ['Information criteria, nonlinearity, additive outliers, innovative outliers, change in persistence, outlier detection. - Informationskriterien, Nichtlinearität, additive Ausreißer, innovative Ausreißer, Persistenzbruch, Ausreißerermittlung'] ### GND ID: ['gnd:1126258431', 'gnd:171295137', 'gnd:4067486-1', 'gnd:4304586-8', 'gnd:4510494-3', 'gnd:64681-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A881977683'] ### GND class: ['Sibbertsen, Philipp', 'Grote, Ulrike', 'Zeitreihenanalyse', 'Nichtlineare Zeitreihe', 'Ausreißer (Statistik)', 'Gottfried Wilhelm Leibniz Universität Hannover'] <|eot_id|>
3A882019112.jsonld
['Amino acid-derived imidazolium salts : platform molecules for N-Heterocyclic carbene metal complexes and organosilica materials']
['In the interest of producing functional catalysts from sustainable building-blocks, 1, 3-dicarboxylate imidazolium salts derived from amino acids were successfully modified to be suitable as N-Heterocyclic carbene (NHC) ligands within metal complexes. Complexes of Ag(I), Pd(II), and Ir(I) were successfully produced using known procedures using ligands derived from glycine, alanine, β-alanine and phenylalanine. The complexes were characterized in solid state using X-Ray crystallography, which allowed for the steric and electronic comparison of these ligands to well-known NHC ligands within analogous metal complexes. The palladium complexes were tested as catalysts for aqueous-phase Suzuki-Miyaura cross-coupling. Water-solubility could be induced via ester hydrolysis of the N-bound groups in the presence of base. The mono-NHC–Pd complexes were seen to be highly active in the coupling of aryl bromides with phenylboronic acid; the active catalyst of which was determined to be mostly Pd(0) nanoparticles. Kinetic studies determined that…']
['gnd:1127609378', 'gnd:142882585', 'gnd:4347498-6', 'gnd:7652572-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A882019112']
['Steeples, Elliot', 'Antonietti, Markus', 'Imidazoliumsalze', 'Heterocyclische Carbene (-N)']
Document ### Title: ['Amino acid-derived imidazolium salts : platform molecules for N-Heterocyclic carbene metal complexes and organosilica materials'] ### Abstract: ['In the interest of producing functional catalysts from sustainable building-blocks, 1, 3-dicarboxylate imidazolium salts derived from amino acids were successfully modified to be suitable as N-Heterocyclic carbene (NHC) ligands within metal complexes. Complexes of Ag(I), Pd(II), and Ir(I) were successfully produced using known procedures using ligands derived from glycine, alanine, β-alanine and phenylalanine. The complexes were characterized in solid state using X-Ray crystallography, which allowed for the steric and electronic comparison of these ligands to well-known NHC ligands within analogous metal complexes. The palladium complexes were tested as catalysts for aqueous-phase Suzuki-Miyaura cross-coupling. Water-solubility could be induced via ester hydrolysis of the N-bound groups in the presence of base. The mono-NHC–Pd complexes were seen to be highly active in the coupling of aryl bromides with phenylboronic acid; the active catalyst of which was determined to be mostly Pd(0) nanoparticles. Kinetic studies determined that…'] ### GND ID: ['gnd:1127609378', 'gnd:142882585', 'gnd:4347498-6', 'gnd:7652572-7', 'https://www.tib.eu/de/suchen/id/TIBKAT%3A882019112'] ### GND class: ['Steeples, Elliot', 'Antonietti, Markus', 'Imidazoliumsalze', 'Heterocyclische Carbene (-N)'] <|eot_id|>