TY - CHAP AU - Meier, Jana AU - Vogelsang, Christoph AU - Rotärmel, Tanja ED - Schöning, Anke ED - Heer, Michaela ED - Pahl, Michelle ED - Diehr, Frank ED - Parusel, Eva ED - Tinnefeld, Anja ED - Walke, Jutta ID - 52222 T2 - Das Berufsfeldpraktikum als Professionalisierungselement. Grundlagen, Konzepte, Beispiele für das Lehramtsstudium TI - "Das Berufsfeldpraktikum empfinde ich als nicht notwendig im Studium" - Evaluationsergebnisse zum Berufsfeldpraktikum aus Sicht von Lehramtsstudierenden ER - TY - JOUR AB - Abstract Lithium niobate has emerged as a promising platform for integrated quantum optics, enabling efficient generation, manipulation, and detection of quantum states of light. However, integrating single-photon detectors requires cryogenic operating temperatures, since the best performing detectors are based on narrow superconducting wires. While previous studies have demonstrated the operation of quantum light sources and electro-optic modulators in LiNbO3 at cryogenic temperatures, the thermal transition between room temperature and cryogenic conditions introduces additional effects that can significantly influence device performance. In this paper, we investigate the generation of pyroelectric charges and their impact on the optical properties of lithium niobate waveguides when changing from room temperature to 25 K, and vice versa. We measure the generated pyroelectric charge flow and correlate this with fast changes in the birefringence acquired through the Sénarmont-method. Both electrical and optical influence of the pyroelectric effect occur predominantly at temperatures above 100 K. AU - Thiele, Frederik AU - Hummel, Thomas AU - Lange, Nina Amelie AU - Dreher, Felix AU - Protte, Maximilian AU - Bruch, Felix vom AU - Lengeling, Sebastian AU - Herrmann, Harald AU - Eigner, Christof AU - Silberhorn, Christine AU - Bartley, Tim ID - 51356 IS - 1 JF - Materials for Quantum Technology KW - General Earth and Planetary Sciences KW - General Environmental Science SN - 2633-4356 TI - Pyroelectric influence on lithium niobate during the thermal transition for cryogenic integrated photonics VL - 4 ER - TY - CHAP AU - Tophinke, Doris AU - Dübbert, Alexander ED - Stumpf, Sören ED - Stein, Stephan ID - 52252 SN - 978-3-95809-171-9 T2 - Konstruktionsgrammatik X. Textsorten und Textmuster als Konstruktionen? TI - „4 THe BoYZ“ – Widmungen im Szene-Graffiti aus konstruktionsgrammatischer Perspektive. Die multimodale Relator-Konstruktion als grammatische Musterbildung im Horizont des Textes ER - TY - CHAP AU - Eickelmann, Birgit AU - Barbovschi, M. AU - Holmarsdottir, H.B. AU - Parsanoglou, D. AU - Sisask, M. AU - Labusch, Amelie ED - Holmarsdottir, H.B. ED - Seland, I. ED - Hyggen, C. ED - Roth, M. ID - 51130 T2 - Understanding the everyday digital lives of children and young people TI - Perspectives of children and young people on their education as preparing for their future in the digital age: In-depth qualitative study in five European countries. ER - TY - GEN AU - Dorociak, Svitlana ID - 52318 TI - Implementierung eines Algorithmus zur motivbasierten Schnitt-Sparsifizierung ER - TY - CONF AB - Android applications collecting data from users must protect it according to the current legal frameworks. Such data protection has become even more important since the European Union rolled out the General Data Protection Regulation (GDPR). Since app developers are not legal experts, they find it difficult to write privacy-aware source code. Moreover, they have limited tool support to reason about data protection throughout their app development process. This paper motivates the need for a static analysis approach to diagnose and explain data protection in Android apps. The analysis will recognize personal data sources in the source code, and aims to further examine the data flow originating from these sources. App developers can then address key questions about data manipulation, derived data, and the presence of technical measures. Despite challenges, we explore to what extent one can realize this analysis through static taint analysis, a common method for identifying security vulnerabilities. This is a first step towards designing a tool-based approach that aids app developers and assessors in ensuring data protection in Android apps, based on automated static program analysis. AU - Khedkar, Mugdha AU - Bodden, Eric ID - 52235 KW - static program analysis KW - data protection and privacy KW - GDPR compliance T2 - Proceedings of the 9th International Conference on Mobile Software Engineering and Systems TI - Toward an Android Static Analysis Approach for Data Protection ER - TY - JOUR AB - In der Professionalisierung von Lehrkräften ist die Selbst-reflexion eine wesentliche Voraussetzung, da sie zentral für die Weiterentwicklung der eigenen Kompetenzen ist. Daraus ergibt sich die Notwendigkeit, bereits in der ersten Phase der Lehrkräftebildung die Selbstreflexion und die Weiterentwicklungsorientierung zu fördern. Hierzu sind auf Grund des sozialen Settings gezielte reflexionsorientierte Workshops chancenreich. Um die Effekte von reflexionsorientierten Workshops und dabei den Zusammenhang zwischen der Selbst-reflexion und der Weiterentwicklungsorientierung zu überprüfen, wurden anhand einer Stichprobe von N = 646 Lehramtsstudierenden die Entwicklung der Selbst-reflexion und Weiterentwicklungsorientierung beim Besuch von Workshops zu überfachlichen Kompetenzen untersucht. Die Datenerhebung erfolgte vor, direkt nach und erneut vier bis sechs Wochen nach den reflexionsorientierten Workshops mittels eines Fragebogens. Durch Varianzanalysen können in Bezug auf die Selbst-reflexion direkt nach den Workshops signifikante Effekte sowie eine konstante Ausprägung vier bis sechs Wochen später nachgewiesen werden. Weiterhin konnte ein signifikanter Anstieg bei der Weiterentwicklungsorientierung über die drei Messzeitpunkte verzeichnet werden. Ebenso zeigte sich ein positiver Effekt der Selbstreflexion auf den Anstieg der Weiterentwicklungsorientierung. AU - Kleine, Sabrina M AU - Sohlau, Sylvia AU - Seifert, Andreas AU - Buhl, Heike M. ID - 52328 IS - 1 JF - Herausforderung Lehrer*innenbildung - Zeitschrift zur Konzeption, Gestaltung und Diskussion TI - Förderung der Selbstreflexion und Weiterentwicklungsorientierung durch reflexionsorientierte Workshops im Lehramtsstudium VL - 7 ER - TY - JOUR AU - Intveen, Julie ID - 52332 JF - MEIN FACH - Englisch Sek II TI - Commonwealth Connections. Discovering global dynamics through Model UN discourse VL - 1 ER - TY - JOUR AU - Intveen, Julie ID - 52333 JF - MEIN FACH - Englisch Sek II TI - The Commonwealth Games. Hosting the games – creating pitches VL - 1 ER - TY - GEN AB - We introduce the concept of a k-token signed graph and study some of its combinatorial and algebraic properties. We prove that two switching isomorphic signed graphs have switching isomorphic token graphs. Moreover, we show that the Laplacian spectrum of a balanced signed graph is contained in the Laplacian spectra of its k-token signed graph. Besides, we introduce and study the unbalance level of a signed graph, which is a new parameter that measures how far a signed graph is from being balanced. Moreover, we study the relation between the frustration index and the unbalance level of signed graphs and their token signed graphs. AU - Dalfó, C. AU - Fiol, M. A. AU - Steffen, Eckhard ID - 52342 T2 - arXiv:2403.02924 TI - On token signed graphs ER - TY - JOUR AB - Promising cathode materials for fluoride-ion batteries (FIBs) are 3d transition metal containing oxides with Ruddlesden-Popper-type structure. So far, multi-elemental compositions were not investigated, but could alternate electrochemical performance similar to what has been found for cathode materials for lithium-ion batteries. Within this study, we investigate RP type La2Ni0.75Co0.25O4.08 as an intercalation-based active cathode material for all-solid-state FIBs. We determine the structural changes of La2Ni0.75Co0.25O4.08 during fluoride intercalation / de-intercalation by ex-situ X-ray diffraction, which showed that F- insertion leads to transformation of the parent phase to three different phases. Changes in Ni and Co oxidation states and coordination environment were examined by X-ray absorption spectroscopy and magnetic measurements in order to understand the complex reaction behaviour of the phases in detail, showing that the two transition metals behave differently in the charging and discharging process. Under optimized operating conditions, a cycle life of 120 cycles at a critical cut-off capacity of 40 mAh g-1 against Pb/PbF2 was obtained, which is one of the highest observed for intercalation electrode materials in FIBs so far. The average Coulombic efficiencies ranged from 85% to 90%. Thus, La2Ni0.75Co0.25O4.08 could be a promising candidate for cycling-stable high-energy cathode materials for all-solid-state FIBs AU - Vanita, Vanita AU - Waidha, Aamir Iqbal AU - Vasala, Sami AU - Puphal, Pascal AU - Schoch, Roland AU - Glatzel, Pieter AU - Bauer, Matthias AU - Clemens, Oliver ID - 52346 JF - Journal of Materials Chemistry A KW - General Materials Science KW - Renewable Energy KW - Sustainability and the Environment KW - General Chemistry SN - 2050-7488 TI - Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries ER - TY - JOUR AU - Beimdiek, Janis AU - Schmid, Hans-Joachim ID - 52357 IS - 3 JF - Atmosphere KW - surrogate aerosols KW - indoor air cleaners KW - ultra-fine particles KW - COVID-19 KW - test method KW - field experiments: clean air delivery rate SN - 2073-4433 TI - Evaluation of Surrogate Aerosol Experiments to Predict Spreading and Removal of Virus-Laden Aerosols VL - 15 ER - TY - CONF AU - Chudalla, Nick AU - Schmolke, Tobias AU - Meschut, Gerson AU - Spohr, Sebastian AU - Eckstein, Lutz AU - Brunner-Schwer, Christian AU - Rethmeier, Michael AU - Nothelfer-Richter, Rolf AU - Hilt, MIchael ID - 52359 T2 - 24. Kolloquium: Gemeinsame Forschung in der Klebtechnik TI - Konzeptentwicklung für ein Stahlbatteriegehäuse unter besonderer Berücksichtigung der Fügetechnik und des Korrosionsschutzes ER - TY - JOUR AU - Hami Dindar, Iman AU - Mirzaei, Mona AU - Baumhögger, Elmar AU - Lutters, Nicole AU - Kenig, Eugeny Y. ID - 52097 JF - Journal of Chemical & Engineering Data KW - General Chemical Engineering KW - General Chemistry SN - 0021-9568 TI - Experimental and Theoretical Investigation of CO2 Absorption in Aqueous Solution of Glucosamine: Material Property and Equilibrium Data ER - TY - JOUR AU - Weber, Mike AU - Lutters, Nicole AU - Kenig, Eugeny Y. ID - 52226 JF - Industrial & Engineering Chemistry Research KW - Industrial and Manufacturing Engineering KW - General Chemical Engineering KW - General Chemistry SN - 0888-5885 TI - Dynamics of an Absorption/Desorption Plant: Experimental Study and Model Validation ER - TY - THES AU - Flachmann, Felix ID - 52404 SN - 978-3-8440-9432-9 TI - Untersuchung des Füllverhaltens holzfaserverstärkter Kunststoffe (WPC) mit hohen Füllstoffgehalten VL - Band 4 ER - TY - GEN AU - Al Trjman, Mohamad AU - Meschut, Gerson AU - Salten, Alexander Heinrich Johannes AU - Kenig, Eugeny Y. ID - 52403 TI - Methodenentwicklung zur Simulation des Viscous Fingering in Klebverbindungen von stahlintensiven Mischbaustrukturen ER - TY - JOUR AU - Bruns, Bastian AU - Gross, Michel AU - Grünewald, Marcus AU - Bertsch, Valentin AU - Riese, Julia ID - 52229 JF - Journal of Cleaner Production KW - Industrial and Manufacturing Engineering KW - Strategy and Management KW - General Environmental Science KW - Renewable Energy KW - Sustainability and the Environment KW - Building and Construction SN - 0959-6526 TI - A multi-step framework for the design of a flexible power-to-methane process ER - TY - JOUR AU - Riese, Julia AU - Fasel, Henrik AU - Pannok, Maik AU - Lier, Stefan ID - 52388 JF - Sustainable Production and Consumption KW - Industrial and Manufacturing Engineering KW - Renewable Energy KW - Sustainability and the Environment KW - Environmental Chemistry KW - Environmental Engineering SN - 2352-5509 TI - Decentralized production concepts for bio-based polymers - implications for supply chains, costs, and the carbon footprint ER - TY - JOUR AU - Al-Lami, Abbas J.S. AU - Kenig, Eugeny Y. ID - 51122 JF - Case Studies in Thermal Engineering KW - Fluid Flow and Transfer Processes KW - Engineering (miscellaneous) SN - 2214-157X TI - New pressure drop and heat transfer correlations for turbulent forced convection in internally channeled tube heat exchanger ducts ER -