TY - JOUR
AU - Eremin, Oxana
ID - 50219
IS - 3
JF - GENDER. Zeitschrift für Geschlecht, Kultur und Gesellschaft
TI - Eine kulinarische Geschlechterordnung? Die Polarisierung von Geschlecht im Kontext medialer Inszenierung und alltagsweltlicher Darstellungen des Kulinarischen
VL - 14
ER -
TY - CONF
AU - Faßbender, Laura
AU - Krause, Daniel
AU - Weigelt, Matthias
ID - 37834
TI - Eine meta-analytische Untersuchung der Feedback-Related Negativity in motorischen Aufgaben
ER -
TY - JOUR
AB - Teachers expect facilitators to have own teaching experience as a teacher in order to be able to carry out effective teacher professional development programs. As part of the project EmMa(M), it is investigated, to which extent the teaching experience of facilitators influences the development of early childhood teachers' (n = 83) mathematical pedagogical content knowledge (MPCK) and early childhood teachers' enjoyment of mathematics in the context of a teacher professional development program. It turns out that the teaching experience of the facilitators has no influence on the development of early childhood teachers' MPCK, but favors the development of early childhood teachers' enjoyment of mathematics. Controlling for this increased enjoyment an influence of teaching experience on the development of early childhood teachers' MPCK emerges, but in favor of the participating facilitators who have no teaching experience but have a university degree.
AU - Hagena, Maike
AU - Bruns, Julia
AU - Gasteiger, Hedwig
ID - 34819
IS - 6
JF - Zeitschrift für Erziehungswissenschaft
KW - Facilitator professional development
KW - Early childhood teachers
KW - Teaching
KW - experience
KW - Early mathematics education
SN - 1434-663X
TI - Einfluss der Berufserfahrung von Multiplikatorinnen und Multiplikatoren auf die Wirksamkeit von Fortbildungsmaßnahmen zur frühen mathematischen Bildung. Zeitschrift Für Erziehungswissenschaft
VL - 25
ER -
TY - GEN
AU - Sural, Ilknur
ID - 43012
TI - Einfluss der Lagerdauer von PA12- Lasersinterpulver auf die Verarbeitungs- und Bauteileigenschaft
ER -
TY - GEN
AU - Moritzer, Elmar
AU - Scholle, Maximilian
AU - Tölle, Lisa
AU - Bomm, J.
ID - 34729
T2 - GAK - Gummi Fasern Kunststoffe
TI - Einfluss der Prozessführung auf die Faserqualität beim Faserrecycling mittels thermischer Faserrückgewinnung
ER -
TY - GEN
AU - Ostermeier, Jakob
ID - 46858
TI - Einfluss des Lasersinter-Prozesses auf die Recyclingfähigkeit von flammgeschütztem PA12 Pulver
ER -
TY - CHAP
AU - Hochmuth, Reinhard
AU - Biehler, Rolf
AU - Schaper, Niclas
AU - Liebendörfer, Michael
AU - Büdenbender-Kuklinski, Christiane
AU - Lankeit, Elisa
AU - Ruge, Johanna
AU - Schürmann, Mirko
ED - Reinhard, Hochmuth
ED - Biehler, Rolf
ED - Liebendörfer, Michael
ED - Schaper, Niclas
ID - 42651
SN - 2197-8751
T2 - Unterstützungsmaßnahmen in mathematikbezogenen Studiengängen - Konzepte, Praxisbeispiele und Untersuchungsergebnisse
TI - Einführung in das WiGeMath-Projekt: Wirkung und Gelingensbedingungen von Unterstützungsmaßnahmen für mathematikbezogenes Lernen in der Studieneingangsphase
ER -
TY - THES
AB - Hochschulische Bildungsverläufe und -erfolge sind in Deutschland anhaltend maßgeblich von der sozialen Herkunft beeinflusst. Gleichzeitig bestehen Anforderungen an moderne Gesellschaften, Unterschiede in den bildungsbezogenen Chancen abzuschaffen, die nicht aus Leistungsunterschieden, sondern aus der Zugehörigkeit zu bestimmten sozialen Gruppen resultieren. Auch angesichts der hohen Bedeutung der Studieneingangsphase für den Studienerfolg stellt sich die Frage, wie sich Unterschiede in den ökonomischen und kulturellen Ressourcen der Herkunftsfamilie auf den Verlauf der Studieneingangsphase auswirken. Welche Unterschiede zeigen sich in den Bedingungen des Studienverbleibs, der Ausstattung mit studienverbleibsrelevanten Ressourcen und dem Umgang mit Problemen? Die Untersuchung zeigt vor allem zweierlei: Zum einen sind die Schwierigkeiten mit den universitären und fachspezifischen Bedingungen, die bereits nach dem ersten Studiensemester sichtbar werden, stark abhängig von der Fächergruppe, in der studiert wird. Zum anderen ist für das Gelingen der Studieneingangsphase das kulturelle Kapital der Herkunftsfamilie von größerer Bedeutung als das ökonomische Kapital. Die Ergebnisse sind gleichermaßen für die Bildungs- wie die Ungleichheitsforschung relevant und erlauben es, Handlungsoptionen zur Gestaltung der Studieneingangsphase abzuleiten.
AU - Mauermeister, Sylvi
ID - 47145
TI - Eingeschrieben und Geblieben. Herkunftsgruppenspezifische Bedingungen des Studienverbleibs nach der Studieneingangsphase an Universitäten.
ER -
TY - CHAP
AU - Famula, Marta
AU - Witschel, Verena
ED - Famula, Marta
ED - Witschel, Verena
ID - 33901
T2 - Theater und Krise. Paradigmen der Störung in Dramentexten und Bühnenkonzepten nach 2000. (= Drama zwischen Text und Bühne 1)
TI - Einleitung
ER -
TY - CHAP
AU - Schroeter-Wittke, Harald
AU - Janus, Richard
ED - Janus, Richard
ED - Schroeter-Wittke, Harald
ID - 41098
SN - 978-3-658-36882-1
T2 - Lust und Abgrund. Theologische und kulturwissenschaftliche Zugänge zum Begehren
TI - Einleitung
ER -
TY - CHAP
AU - Haacke-Werron, Stefanie
AU - Karsten, Andrea
AU - Scharlau, Ingrid
ED - Haacke-Werron, Stefanie
ED - Karsten, Andrea
ED - Scharlau, Ingrid
ID - 34014
T2 - Reflexive Schreibwissenschaft. Disziplinäre und praktische Perspektiven
TI - Einleitung
ER -
TY - CHAP
AU - Peckhaus, Volker
ED - Peckhaus , Volker
ID - 37055
T2 - Christian Thiel. Fregeana. Zwölf Studien über Freges Logik
TI - Einleitung
ER -
TY - GEN
AU - Grote, Linda
ID - 33311
TI - Einmal Pandemie, nie mehr Sharing Economy? - Eine ökonometrische Analyse der Auswirkungen der Covid-19 Pandemie auf Sharing Economy Plattformen
ER -
TY - GEN
AU - Katrin, Wild
ID - 30976
TI - Einmal Pandemie, nie mehr Sharing Economy? Eine ökonometrische Analyse der Auswirkungen der Covid-19 Pandemie auf Sharing Eco-nomy Plattformen
ER -
TY - CONF
AU - Yigitbas, Enes
ID - 44838
TI - Einsatz und Evaluation von Virtual Reality-Technologie in einem Informatik-Seminar
ER -
TY - CONF
AU - Vogelsang, Christoph
AU - Meier, Jana
AU - Wotschel, Philipp
AU - Janzen, Thomas
ID - 35593
TI - Einschätzungen Studierender zu Prüfungsformaten im Lehramtsstudium.
ER -
TY - CONF
AU - Vogelsang, Christoph
AU - Meier, Jana
AU - Wotschel, Philipp
AU - Janzen, Thomas
ID - 37415
TI - Einschätzungen Studierender zu Prüfungsformaten im Lehramtsstudium.
ER -
TY - JOUR
AU - Widhalm, Alex
AU - Golla, Christian
AU - Weber, Nils
AU - Mackwitz, Peter
AU - Zrenner, Artur
AU - Meier, Cedrik
ID - 29716
IS - 4
JF - Optics Express
KW - Atomic and Molecular Physics
KW - and Optics
SN - 1094-4087
TI - Electric-field-induced second harmonic generation in silicon dioxide
VL - 30
ER -
TY - CONF
AB - As a joining-by-forming process, clinching and the use of functional elements enable low-energy joining of components through form, force, and, under certain conditions, material closure. In addition to the transmission of mechanical forces, these joining processes can be qualified for additional electrical contact within the scope of functional integration for electro-mobile applications. For this purpose, maximizing the force and material closure is necessary to ensure a long-term, stable transmission of electrical currents. To this end, the electrical properties of the joints were optimized. The investigations carried out show the long-term behavior under normal operating conditions and the short-circuit case.
AU - Füssel, Uwe
AU - Schlegel, Stephan
AU - Reschke, Gregor
AU - Kalich, Jan
ID - 34250
T2 - SFU/ICAFT 2022
TI - Electrical Contacting of Aluminum Bus Bars Using Clinching and Functional Elements
ER -
TY - JOUR
AU - Bocchini, Adriana
AU - Gerstmann, Uwe
AU - Bartley, Tim
AU - Steinrück, Hans-Georg
AU - Henkel, Gerald
AU - Schmidt, Wolf Gero
ID - 33965
JF - Phys. Rev. Materials
TI - Electrochemical performance of KTiOAsO_4 (KTA) in potassium-ion batteries from density-functional theory
VL - 6
ER -
TY - JOUR
AU - Duderija, B.
AU - González-Orive, A.
AU - Schmidt, H.C.
AU - Calderón, J.C.
AU - Hordych, I.
AU - Maier, H.J.
AU - Homberg, W.
AU - Grundmeier, G.
ID - 43021
JF - Journal of Advanced Joining Processes
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - Engineering (miscellaneous)
KW - Chemical Engineering (miscellaneous)
SN - 2666-3309
TI - Electrografting of BTSE: Zn films for advanced steel-aluminum joining by plastic deformation
VL - 7
ER -
TY - CHAP
AB - Lithium niobate (LiNbO3), a material frequently used in optical applications, hosts different kinds of polarons that significantly affect many of its physical properties. In this study, a variety of electron polarons, namely free, bound, and bipolarons, are analyzed using first-principles calculations. We perform a full structural optimization based on density-functional theory for selected intrinsic defects with special attention to the role of symmetry-breaking distortions that lower the total energy. The cations hosting the various polarons relax to a different degree, with a larger relaxation corresponding to a larger gap between the defect level and the conduction-band edge. The projected density of states reveals that the polaron states are formerly empty Nb 4d states lowered into the band gap. Optical absorption spectra are derived within the independent-particle approximation, corrected by the GW approximation that yields a wider band gap and by including excitonic effects within the Bethe-Salpeter equation. Comparing the calculated spectra with the density of states, we find that the defect peak observed in the optical absorption stems from transitions between the defect level and a continuum of empty Nb 4d states. Signatures of polarons are further analyzed in the reflectivity and other experimentally measurable optical coefficients.
AU - Schmidt, Falko
AU - Kozub, Agnieszka L.
AU - Gerstmann, Uwe
AU - Schmidt, Wolf Gero
AU - Schindlmayr, Arno
ED - Corradi, Gábor
ED - Kovács, László
ID - 30288
SN - 978-3-0365-3340-7
T2 - New Trends in Lithium Niobate: From Bulk to Nanocrystals
TI - Electron polarons in lithium niobate: Charge localization, lattice deformation, and optical response
ER -
TY - JOUR
AU - Murzakhanov, Fadis F.
AU - Mamin, Georgy Vladimirovich
AU - Orlinskii, Sergei Borisovich
AU - Gerstmann, Uwe
AU - Schmidt, Wolf Gero
AU - Biktagirov, Timur
AU - Aharonovich, Igor
AU - Gottscholl, Andreas
AU - Sperlich, Andreas
AU - Dyakonov, Vladimir
AU - Soltamov, Victor A.
ID - 37713
IS - 7
JF - Nano Letters
KW - Mechanical Engineering
KW - Condensed Matter Physics
KW - General Materials Science
KW - General Chemistry
KW - Bioengineering
SN - 1530-6984
TI - Electron–Nuclear Coherent Coupling and Nuclear Spin Readout through Optically Polarized VB– Spin States in hBN
VL - 22
ER -
TY - JOUR
AU - Khazaei, Mohammad
AU - Ranjbar, Ahmad
AU - Kang, Yoon‐Gu
AU - Liang, Yunye
AU - Khaledialidusti, Rasoul
AU - Bae, Soungmin
AU - Raebiger, Hannes
AU - Wang, Vei
AU - Han, Myung Joon
AU - Mizoguchi, Hiroshi
AU - Bahramy, Mohammad S.
AU - Kühne, Thomas
AU - Belosludov, Rodion V.
AU - Ohno, Kaoru
AU - Hosono, Hideo
ID - 33682
IS - 20
JF - Advanced Functional Materials
KW - Electrochemistry
KW - Condensed Matter Physics
KW - Biomaterials
KW - Electronic
KW - Optical and Magnetic Materials
SN - 1616-301X
TI - Electronic Structures of Group III–V Element Haeckelite Compounds: A Novel Family of Semiconductors, Dirac Semimetals, and Topological Insulators
VL - 32
ER -
TY - CHAP
AU - Puscher, Sahra
ED - Süwolto, Leonie
ED - Steigerwald, Jörn
ID - 50336
SN - 9783770567447
T2 - ZwischenSpielZeit. Das Theater der Frühaufklärung (1680-1730)
TI - Elegische Liebestragödie. Johann Elias Schlegels "Die Trojanerinnen" (1737/47)
ER -
TY - GEN
AU - Kruse, Stephan
AU - Scheytt, J. Christoph
ID - 48628
TI - Elektrooptischer Mischer
ER -
TY - CONF
AU - Franzen, Katja
AU - Moschner, Barbara
AU - Hellmich, Frank
ID - 36055
TI - Elementary school teachers' self-efficacy beliefs concerning inclusive education. Single Paper Presentation. AERA (American Educational Research Association) 2022. Annual Meeting Theme: „Cultivating Equitable Education Systems for the 21^st Century“
ER -
TY - CONF
AU - Franzen, Katja
AU - Moschner, Barbara
AU - Hellmich, Frank
ID - 36041
TI - Elementary school teachers’ self-efficacy in inclusive education – An investigation of the associated sources. Single Paper. 10th SELF International Conference. “SELF in Focus: Leading Research Perspectives and Applications in an Exciting New Age of Science”
ER -
TY - JOUR
AB - We consider the generators $L_k$ of Heckman-Opdam diffusion processes in the compact and non-compact case in $N$ dimensions for root systems of type $A$ and $B$, with a multiplicity function of the form $k=κk_0$ with some fixed value $k_0$ and a varying constant $κ\in\,[0,\infty[$. Using elementary symmetric functions, we present polynomials which are simultaneous eigenfunctions of the $L_k$ for all $κ\in\,]0,\infty[$. This leads to martingales associated with the Heckman-Opdam diffusions $ (X_{t,1},\ldots,X_{t,N})_{t\ge0}$. As our results extend to the freezing case $κ=\infty$ with a deterministic limit after some renormalization, we find formulas for the expectations $\mathbb E(\prod_{j=1}^N(y-X_{t,j})),$ $y\in\mathbb C$.
AU - Rösler, Margit
AU - Voit, Michael
ID - 38039
IS - 780
JF - Contemporary Mathematics
TI - Elementary symmetric polynomials and martingales for Heckman-Opdam processes
ER -
TY - GEN
AU - Sadeghi-Kohan, Somayeh
AU - Hellebrand, Sybille
AU - Wunderlich, Hans-Joachim
ID - 29890
KW - WORKSHOP
TI - EM-Aware Interconnect BIST
ER -
TY - JOUR
AB - Die Arbeit mit Videografien eigenen Unterrichts wird in Praxisphasen in der universitären Lehramtsausbildung zunehmend als methodisches Mittel zur Reflexion von Unterrichtserfahrungen genutzt. Als wesentlicher Einflussfaktor für einen erfolgreichen Einsatz werden dabei die begleitenden Emotionen der Studierenden angenommen. In einer längsschnittlichen Interviewstudie wurden daher die emotionalen Prozesse von 20 Lehramtsstudierenden bei der Arbeit mit Eigenvideografien in Begleitveranstaltungen des Praxissemesters untersucht. Dabei konnten drei Typen rekonstruiert werden, die prototypische emotionale Muster im Praxissemesterverlauf beschreiben, die durch die Valenz emotionaler Zustände bezüglich der Eigenvideografie zu Beginn und Ende des Praxissemesters charakterisiert werden können (negativ-positiv, positiv-positiv, negativ-negativ). Bei fallübergreifender Betrachtung konnten zudem zentrale Zusammenhänge zwischen Emotionen und Merkmalen des Videoeinsatzes identifiziert werden, wie die Vertrautheit mit Mitstudierenden, der Prozess der Aufnahmegenehmigung und Vorerfahrungen mit Eigenvideografie. Die Ergebnisse der Studie können zur Vermeidung intensiver negativer Emotionen bei der Nutzung videobasierter Reflexion eigenen Unterrichts beitragen und die Akzeptanz von Eigenvideografie zur eigenen Professionalisierung in der Lehrerbildung erhöhen.
AU - Pollmeier, Pascal
AU - Rogge, Tim
AU - Vogelsang, Christoph
ID - 30202
IS - 1
JF - ZeHf – Zeitschrift für empirische Hochschulforschung
SN - 2367-3044
TI - Emotionale Erfahrungen von Lehramtsstudierenden bei der Arbeit mit Eigenvideografien von Unterricht – Fallanalysen aus einer längsschnittlichen Interviewstudie im Praxissemester
VL - 5
ER -
TY - CONF
AU - Fröhlich, Nadine
AU - Drossel, Kerstin
AU - Gerick, J.
AU - Eickelmann, Birgit
ID - 51896
T2 - Präsentation im Rahmen vom 28. Kongress der Deutschen Gesellschaft für Erziehungswissenschaft (DGfE) ‚Ent|grenz|ungen‘. Universität Bremen (online)
TI - Empirische Analysen zum Belastungsempfinden von Lehrkräften im Distanzunterricht
ER -
TY - CONF
AU - Singh, Karanveer
AU - Meier, Janosch
AU - Kress, Christian
AU - Misra, Arijit
AU - Schwabe, Tobias
AU - Preussler, Stefan
AU - Scheytt, J. Christoph
AU - Schneider, Thomas
ED - Li, Guifang
ED - Nakajima, Kazuhide
ID - 34234
T2 - Next-Generation Optical Communication: Components, Sub-Systems, and Systems XI
TI - Emulation of integrated high-bandwidth photonic AWG using low-speed electronics
ER -
TY - CONF
AU - Schütze, Christian
AU - Groß, André
AU - Wrede, Britta
AU - Richter, Birte
ID - 51347
T2 - INTERNATIONAL CONFERENCE ON MULTIMODAL INTERACTION
TI - Enabling Non-Technical Domain Experts to Create Robot-Assisted Therapeutic Scenarios via Visual Programming
ER -
TY - CONF
AU - Schluter, Nils
AU - Neuhaus, Matthias
AU - Schulze Darup, Moritz
ID - 35573
T2 - 2021 European Control Conference (ECC)
TI - Encrypted dynamic control with unlimited operating time via FIR filters
ER -
TY - JOUR
AB - Far-field multi-speaker automatic speech recognition (ASR) has drawn increasing attention in recent years. Most existing methods feature a signal processing frontend and an ASR backend. In realistic scenarios, these modules are usually trained separately or progressively, which suffers from either inter-module mismatch or a complicated training process. In this paper, we propose an end-to-end multi-channel model that jointly optimizes the speech enhancement (including speech dereverberation, denoising, and separation) frontend and the ASR backend as a single system. To the best of our knowledge, this is the first work that proposes to optimize dereverberation, beamforming, and multi-speaker ASR in a fully end-to-end manner. The frontend module consists of a weighted prediction error (WPE) based submodule for dereverberation and a neural beamformer for denoising and speech separation. For the backend, we adopt a widely used end-to-end (E2E) ASR architecture. It is worth noting that the entire model is differentiable and can be optimized in a fully end-to-end manner using only the ASR criterion, without the need of parallel signal-level labels. We evaluate the proposed model on several multi-speaker benchmark datasets, and experimental results show that the fully E2E ASR model can achieve competitive performance on both noisy and reverberant conditions, with over 30% relative word error rate (WER) reduction over the single-channel baseline systems.
AU - Zhang, Wangyou
AU - Chang, Xuankai
AU - Boeddeker, Christoph
AU - Nakatani, Tomohiro
AU - Watanabe, Shinji
AU - Qian, Yanmin
ID - 33669
JF - IEEE/ACM Transactions on Audio, Speech, and Language Processing
SN - Print ISSN: 2329-9290 Electronic ISSN: 2329-9304
TI - End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party
ER -
TY - JOUR
AU - Krimphove, Dieter
ID - 36210
IS - 1-2
JF - Zeitschrift für Gewerblichen Rechtsschutz und Urheberrecht
TI - Ende des werberechtlichen Schattendaseins der "Hörmarke" - Zugleich eine Analyse von EuG "Ardagh Metal Beverage/EUIPO"
ER -
TY - GEN
AU - Knorr, Lukas
AU - Meschede, Henning
ID - 39975
TI - Energy Efficiency as Key for Climate Neutral Business
ER -
TY - JOUR
AU - Borgert, Thomas
AU - Homberg, Werner
ID - 29719
JF - Energy Reports
KW - General Energy
SN - 2352-4847
TI - Energy saving potentials of an efficient recycling process of different aluminum rejects
VL - 8
ER -
TY - JOUR
AU - Leineweber, Jonas
ID - 33206
IS - 1
JF - Heimat Westfalen
SN - 2569-2178
TI - Engagement, Ehrenamt und Digitalisierung während der Corona-Krise im Bereich des Immateriellen Kulturerbes. Gesellschaftliche Rituale, Bräuche und Feste und die Folgen von Covid-19
VL - 122
ER -
TY - JOUR
AU - Constantiou, Ioanna
AU - Mukkamala, Alivelu
AU - Sjöklint, Mimmi
AU - Trier, Matthias
ID - 36961
JF - European Journal of Information Systems
KW - Library and Information Sciences
KW - Information Systems
SN - 0960-085X
TI - Engaging with self-tracking applications: how do users respond to their performance data?
ER -
TY - JOUR
AU - Constantiou, Ioanna
AU - Mukkamala, Alivelu
AU - Sjöklint, Mimmi
AU - Trier, Matthias
ID - 36083
JF - European Journal of Information Systems
KW - Library and Information Sciences
KW - Information Systems
KW - Self-Tracking
KW - User Behaviour
KW - Discontinuance
SN - 0960-085X
TI - Engaging with self-tracking applications: how do users respond to their performance data?
ER -
TY - JOUR
AU - Constantiou, Ioanna
AU - Mukkamala, Alivelu
AU - Sjöklint, Mimmi
AU - Trier, Matthias
ID - 36960
JF - European Journal of Information Systems
KW - Library and Information Sciences
KW - Information Systems
SN - 0960-085X
TI - Engaging with self-tracking applications: how do users respond to their performance data?
ER -
TY - JOUR
AB - Abstract
Um global erfolgreich zu bleiben, wird es bald nicht mehr ausreichen, Kriterien wie ein gutes Produktdesign zu erfüllen. Stattdessen muss der Kundennutzen kontinuierlich über den Produktlebenszyklus hinaus gesteigert werden. Tech-Konzerne verzeichnen bereits Erfolge und verkörpern den Wandel schon heute. Vor diesem Hintergrund ist ein neues Leitbild in der Entwicklung und dem Betrieb von zukünftigen, technischen Systemen erforderlich. EngOps soll diesen Bedarf decken und steht für die agile Kollaboration zwischen Engineering und Operations. Alle Teile des Unternehmens sollen ständig miteinander kooperieren, um so beispielsweise wandelbare Produkte auch nach dem Verkauf entwickeln zu können.
AU - Anacker, Harald
AU - Dumitrescu, Roman
AU - Michels, Nico
AU - Rasor, Rik
ID - 33710
IS - 6
JF - Zeitschrift für wirtschaftlichen Fabrikbetrieb
KW - Management Science and Operations Research
KW - Strategy and Management
KW - General Engineering
SN - 2511-0896
TI - EngOps – Ein Leitbild für das agile Zusammenwirken von Engineering und Operations
VL - 117
ER -
TY - JOUR
AB - AbstractThe influence of ultra-thin SiOx plasma deposited films on the corrosion resistance of adhesive films on a laser surface melted 7075 aluminium alloy was investigated by means of complementary techniques in comparison to the just laser surface melted state. Laser surface melting (LSM) was performed using a continuous wave mode at a wavelength of 1064 nm. Ultra-thin plasma polymer films were deposited from a mixture of hexamethyldisilane (HMDSO), oxygen, and argon by means of an audio-frequency glow discharge. The surface morphology and surface chemistry compositions were investigated by employing field emission scanning electron microscopy, energy-dispersive X-ray spectroscopy (EDX), diffuse reflection infrared Fourier transform spectroscopy, and X-ray photoelectron spectroscopy. The corrosion resistance of plasma polymer coated LSM Al-7075 alloy was studied using linear sweep voltammetry and electrochemical impedance spectroscopy in a chloride-containing electrolyte. The electrochemical studies showed an improved corrosion resistance for plasma film-coated alloys compared to the just laser surface melted state. To study the corresponding surface adhesive properties, the samples were coated with an epoxy amine adhesive. 90°-peel test under humid conditions confirmed the improvement of interfacial wet-adhesion corrosion tests showed a strong improvement of the delamination resistance of adhesives caused by the ultra-thin interfacial SiOx-films.
AU - Varghese, J.
AU - Vieth, P.
AU - Xie, X.
AU - Grundmeier, Guido
ID - 34642
IS - 1
JF - SN Applied Sciences
KW - General Earth and Planetary Sciences
KW - General Physics and Astronomy
KW - General Engineering
KW - General Environmental Science
KW - General Materials Science
KW - General Chemical Engineering
SN - 2523-3963
TI - Enhanced corrosion resistance of epoxy-films on ultra-thin SiOx PECVD film coated laser surface melted Al-alloys
VL - 5
ER -
TY - THES
AB - Das Ultraschall-Dickdrahtbonden mit Aluminiumdraht ist ein Standardverfahren zur elektrischenKontaktierung von Leistungshalbleitermodulen. Die steigenden Anforderungen an die Effizienzund Zuverlässigkeit der Module haben zu technologischen Weiterentwicklungen geführt und eswerden vermehrt Kupferdrähte mit wesentlich besseren elektrischen und thermischen Eigenschafteneingesetzt. Hieraus resultieren durch höhere Prozesskräfte und Ultraschallleistung neueHerausforderungen bei der Prozessentwicklung; hierfür wird ein Simulationsmodell zur Verbesserungder Prozessentwicklung entwickelt.In Ultraschall-Drahtbondversuchen mit 400 m Aluminium und Kupfer Drähten wurde der Einflussder Prozessparameter auf die Bondqualität untersucht; diese Ergebnisse und zusätzliche Messungender Drahtdeformation und Schwingungen wurden für die Formulierung der Anforderungenund zur Validierung der Ergebnisse des Simulationsmodells genutzt.Es wurde ein Prozessmodell, basierend auf einer Co-Simulation zwischen MATLAB und ANSYS,entwickelt; hierbei wurden die phyiskalischen Phänomene wie die Ultraschall Werkstoffentfestigung,der Verbindungsaufbau und die dynamischen Systemeigenschaften abgebildet.Basierend auf einer Zug-Druck-Prüfmaschine wurde ein Prüfstand zur Identifikation der Modellparameterentwickelt. In zusätzlichen Druckversuchen mit den Bonddrähten mit und ohneUltraschallanregung wurde die Reduktion der Umformkräfte unter Ultraschalleinfluss untersucht.Mit dem entwickelten Prozessmodell wurden die Parameterstudien aus den Ultraschall-Drahtbondversuchensimuliert und direkt mit den experimentellen Ergebnissen verglichen, wobei sich einerelativ gute Übereinstimmung zwischen Simulation und Messung sowohl für Aluminium, als auchfür Kupfer, erzielen ließ.
AU - Schemmel, Reinhard
ID - 34272
SN - 978-3-8440-8527-3
TI - Enhanced process development by simulation of ultrasonic heavy wire bonding
VL - 13
ER -
TY - JOUR
AU - Vieth, P.
AU - Garthe, M.-A.
AU - Voswinkel, Dietrich
AU - Schaper, Mirko
AU - Grundmeier, Guido
ID - 34652
JF - Surface and Coatings Technology
KW - Materials Chemistry
KW - Surfaces
KW - Coatings and Films
KW - Surfaces and Interfaces
KW - Condensed Matter Physics
KW - General Chemistry
SN - 0257-8972
TI - Enhancement of the delamination resistance of adhesive film coated surface laser melted aluminum 7075-T6 alloy by aminophosphonic acid adsorption
VL - 447
ER -
TY - JOUR
AU - Grimminger-Seidensticker, Elke
AU - Seyda, Miriam
ID - 35506
JF - Frontiers in Education
TI - Enhancing attitudes and self-efficacy toward inclusive teaching in physical education pre-service teachers: Results of a quasi-experimental study in physical education teacher education
ER -
TY - CONF
AU - Yigitbas, Enes
AU - Karakaya, Kadiray
AU - Jovanovikj, Ivan
AU - Engels, Gregor
ED - Grunske, Lars
ED - Siegmund, Janet
ED - Vogelsang, Andreas
ID - 29927
T2 - Software Engineering 2022, Fachtagung des GI-Fachbereichs Softwaretechnik, 21.-25. Februar 2022, Virtuell
TI - Enhancing Human-in-the-Loop Adaptive Systems through Digital Twins and VR Interfaces
VL - {P-320}
ER -
TY - CONF
AU - Perevalov, Aleksandr
AU - Ngonga Ngomo, Axel-Cyrille
AU - Both, Andreas
ID - 35546
T2 - 16th IEEE International Conference on Semantic Computing, ICSC 2022, Laguna Hills, CA, USA, January 26-28, 2022
TI - Enhancing the Accessibility of Knowledge Graph Question Answering Systems through Multilingualization
ER -
TY - CONF
AU - Liebendörfer, Michael
AU - Profeta, Angelo
AU - Krämer, Sandra
AU - Schlüter, Sarah
AU - Becher, Silvia
AU - Biehler, Rolf
AU - Mai, Tobias
AU - Schmitz, Angela
ID - 39062
TI - Enriching videos with interactive questions to enhance students’ cognitive activity: concept and implementation
ER -
TY - CHAP
AU - Faupel, Christian
ED - Betz, Stefan
ID - 50405
SN - 978-3-339-12536-1
T2 - Aktuelle Fragestellungen zu Produktion, Logistik und Controlling
TI - Entscheidungsunterstützung durch das Controlling mittels Reporting Design
ER -
TY - CONF
AU - Sänger, Niklas
ID - 46035
TI - Entwicklung didaktischer Fallstudien zur Förderung einer ‚digitalen Inhaltskompetenz‘ im Studienfach Wirtschaftswissenschaft für das Lehramt an Berufskollegs
ER -
TY - GEN
AU - Schott, Alicia
AU - Neukötter, Moritz
ID - 43002
TI - Entwicklung einer Anlage zur Pulverabscheidung im Filament Extension Atomization Prozess
ER -
TY - BOOK
AU - Schmolke, Tobias
AU - Meschut, Gerson
AU - Vieth, Pascal
AU - Meinderink, Dennis
AU - Grundmeier, Guido
ID - 44209
TI - Entwicklung einer Methode zur Bewertung einer stahlintensiven Mischbau-Klebverbindung eines Batteriegehäuses gegenüber mechanischer und medialer Belastung unter Berücksichtigung der Interphasenstruktur
ER -
TY - CONF
AU - Schmolke, Tobias
AU - Teutenberg, Dominik
AU - Meschut, Gerson
AU - Meinderink, Dennis
AU - Golebiowska, Sandra
AU - Rieker, Florian
AU - Ebbert, Christoph
AU - Grundmeier, Guido
ID - 30153
TI - Entwicklung einer Methode zur Bewertung einer stahlintensiven Mischbau-Klebverbindung eines Batteriegehäuses gegenüber mechanischer und medialer Belastung unter Berücksichtigung der Interphasenstruktur
ER -
TY - CONF
AU - Bernemann, Sören Antonius
AU - Maćkowiak, Jan
AU - Maćkowiak, Jerzy
AU - Bertling, René
AU - Lutters, Nicole
AU - Kenig, Eugeny
ID - 31171
TI - Entwicklung eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen
ER -
TY - CONF
AU - Wotschel, Philipp
ID - 37409
TI - Entwicklung eines Performanztests für das bildungswissenschaftliche Lehramtsstudium: Erfassung von Beratungskompetenz
ER -
TY - CONF
AU - Wotschel, Philipp
ID - 37417
TI - Entwicklung eines Performanztests für das bildungswissenschaftliche Lehramtsstudium: Erfassung von Beratungskompetenz
ER -
TY - CONF
AU - Janzen, Thomas
ID - 35865
T2 - Woche des wissenschaftlichen Nachwuchses
TI - Entwicklung eines Performanztests für das Lehramtsstudium im Fach Englisch: Feedback im Kompetenzbereich Schreiben
ER -
TY - CONF
AU - Janzen, Thomas
ID - 35864
T2 - GEBF-Nachwuchstagung 2022
TI - Entwicklung eines Performanztests für das Lehramtsstudium im Fach Englisch: Feedback im Kompetenzbereich Schreiben
ER -
TY - JOUR
AU - Dellori, Anna
AU - Wessel, Lena
ID - 48325
JF - Beiträge zum Mathematikunterricht 2022
TI - Entwicklung und Erprobung von professionsorientierten Lernumgebungen zur Wissensvernetzung in der Algebra
ER -
TY - JOUR
AB - Praktische Tätigkeiten und Handlungen besitzen im allgemeinbildenden Technikunterricht hohen Stellenwert, wenn z.B. Maschinen bedient und Artefakte konstruiert und gefertigt werden. Im Rahmen der Lehramtsausbildung sollten Techniklehrkräfte deswegen best-möglich auf die Anwendung und Durchführung fachpraktischer Handlungen vorbereitet werden. Ziel dieser Arbeit ist es daher, im Rahmen des Lehramtsstudiengangs Technik der RWTH Aachen ein Fachpraktikum zu entwickeln, in dem berufsrelevante fachpraktische Kompetenzen erworben werden. Die empirisch gestützte Entwicklung des Fachpraktikums erfolgt als iterativer Prozess und wird durch das Modell der Didaktischen Rekonstruktion strukturiert, nach welchem die fach-liche Klärung gleichwertig zur Betrachtung der Studierendenperspektive berücksichtigt wird.
AU - Ermel, Dorothee
AU - Riese, Josef
ID - 45175
IS - 1
JF - Journal of Technical Education
TI - Entwicklung und Evaluation eines Fachpraktikums für das Techniklehramt
VL - 10
ER -
TY - CHAP
AU - Janicki, Nicole
ED - Binder, Martin
ED - Wiesmüller, Christian
ED - Finkbeiner, Timo
ID - 37902
KW - technology education
KW - teacher professionalisation
KW - Computational Thinking
KW - digitalization
KW - learning robots
T2 - Technik: Verstehen wir, was wir nutzen!? - Tagungsband zur 23. Jahrestagung der Deutschen Gesellschaft für Technische Bildung in Mannheim vom 24.-25. September 2021.
TI - Entwicklung und Evaluation eines Fortbildungskonzepts im Kontext der technischen Bildung an Grundschulen am Beispiel von Lernrobotern
ER -
TY - JOUR
AU - Bruns, Julia
AU - Langer, W.
AU - Erhorn, J.
ID - 45677
IS - 3
JF - German Journal of Exercise and Sport Research
TI - Entwicklung und Validierung eines videobasierten Testinstruments zur Erfassung des Noticing mit dem Fokus auf Anerkennungsprozesse im inklusiven Sportunterricht
VL - 52
ER -
TY - JOUR
AB - ZusammenfassungIm Lehramtsstudium sollen Studierende grundlegende Fähigkeiten zur theoriegeleiteten Unterrichtsplanung erwerben. In Übereinstimmung mit Modellen zur professionellen Handlungskompetenz von Lehrkräften wird hierbei meist angenommen, dass das im Studienverlauf erworbene Professionswissen eine wesentliche Grundlage für den Aufbau von Fähigkeiten zur Unterrichtsplanung bildet. Lerngelegenheiten zur Anwendung dieses Professionswissens bieten vor allem schulpraktische Phasen im fortgeschrittenen Studienverlauf. Es wird aber ebenso angenommen, dass gerade Erfahrungen mit der Unterrichtsplanung den Aufbau von Professionswissen unterstützen. Der Zusammenhang zwischen dem Ausmaß des Professionswissens und der Entwicklung von Planungsfähigkeit ist bisher unzureichend empirisch geklärt. Eine besondere methodische Herausforderung besteht darin, Planungsfähigkeiten sowohl möglichst authentisch als auch auf standardisierte Weise zu erfassen. Zur Untersuchung des genannten Zusammenhangs wurde eine längsschnittliche Studie im Prä-Post-Design bei angehenden Physiklehrkräften (N = 68 im Längsschnitt) an vier Universitäten durchgeführt. Die Unterrichtsplanungsfähigkeit wurde mit Hilfe eines standardisierten Performanztests vor und nach dem Absolvieren eines Praxissemesters erfasst, indem als Standardsituation der Entwurf einer Unterrichtsstunde zum 3. Newton’schen Axiom unter definierten Zeitvorgaben im Praxissemester simuliert wurde. Zusätzlich wurden das fachliche, fachdidaktische und pädagogische Wissen der Studierenden mit Hilfe standardisierter Instrumente zu beiden Zeitpunkten erhoben, sowie die einschlägigen Lerngelegenheiten im Praxissemester über einen Fragebogen erfasst. Sowohl für Unterrichtsplanungsfähigkeit als auch für alle Wissensvariablen können Zuwächse im Praxissemester beobachtet werden. Cross-Lagged-Panel-Analysen zeigen, dass insbesondere die Ausprägung des fachdidaktischen und pädagogischen Wissens der Studierenden am Beginn des Praxissemesters die Entwicklung von Unterrichtsplanungsfähigkeit begünstigt.
AU - Riese, Josef
AU - Vogelsang, Christoph
AU - Schröder, Jan
AU - Borowski, Andreas
AU - Kulgemeyer, Christoph
AU - Reinhold, Peter
AU - Schecker, Horst
ID - 35524
IS - 4
JF - Zeitschrift für Erziehungswissenschaft
KW - Education
SN - 1434-663X
TI - Entwicklung von Unterrichtsplanungsfähigkeit im Fach Physik: Welchen Einfluss hat Professionswissen?
VL - 25
ER -
TY - JOUR
AB - ZusammenfassungIm Lehramtsstudium sollen Studierende grundlegende Fähigkeiten zur theoriegeleiteten Unterrichtsplanung erwerben. In Übereinstimmung mit Modellen zur professionellen Handlungskompetenz von Lehrkräften wird hierbei meist angenommen, dass das im Studienverlauf erworbene Professionswissen eine wesentliche Grundlage für den Aufbau von Fähigkeiten zur Unterrichtsplanung bildet. Lerngelegenheiten zur Anwendung dieses Professionswissens bieten vor allem schulpraktische Phasen im fortgeschrittenen Studienverlauf. Es wird aber ebenso angenommen, dass gerade Erfahrungen mit der Unterrichtsplanung den Aufbau von Professionswissen unterstützen. Der Zusammenhang zwischen dem Ausmaß des Professionswissens und der Entwicklung von Planungsfähigkeit ist bisher unzureichend empirisch geklärt. Eine besondere methodische Herausforderung besteht darin, Planungsfähigkeiten sowohl möglichst authentisch als auch auf standardisierte Weise zu erfassen. Zur Untersuchung des genannten Zusammenhangs wurde eine längsschnittliche Studie im Prä-Post-Design bei angehenden Physiklehrkräften (N = 68 im Längsschnitt) an vier Universitäten durchgeführt. Die Unterrichtsplanungsfähigkeit wurde mit Hilfe eines standardisierten Performanztests vor und nach dem Absolvieren eines Praxissemesters erfasst, indem als Standardsituation der Entwurf einer Unterrichtsstunde zum 3. Newton’schen Axiom unter definierten Zeitvorgaben im Praxissemester simuliert wurde. Zusätzlich wurden das fachliche, fachdidaktische und pädagogische Wissen der Studierenden mit Hilfe standardisierter Instrumente zu beiden Zeitpunkten erhoben, sowie die einschlägigen Lerngelegenheiten im Praxissemester über einen Fragebogen erfasst. Sowohl für Unterrichtsplanungsfähigkeit als auch für alle Wissensvariablen können Zuwächse im Praxissemester beobachtet werden. Cross-Lagged-Panel-Analysen zeigen, dass insbesondere die Ausprägung des fachdidaktischen und pädagogischen Wissens der Studierenden am Beginn des Praxissemesters die Entwicklung von Unterrichtsplanungsfähigkeit begünstigt.
AU - Riese, Josef
AU - Vogelsang, Christoph
AU - Schröder, Jan
AU - Borowski, Andreas
AU - Kulgemeyer, Christoph
AU - Reinhold, Peter
AU - Schecker, Horst
ID - 45172
IS - 4
JF - Zeitschrift für Erziehungswissenschaft
KW - Education
SN - 1434-663X
TI - Entwicklung von Unterrichtsplanungsfähigkeit im Fach Physik: Welchen Einfluss hat Professionswissen?
VL - 25
ER -
TY - CHAP
AU - Yotyodying, S.
AU - Eickelmann, Birgit
AU - Endberg, M.
AU - Lorenz, R.
ED - Lorenz, R.
ED - Yotyodying, S.
ED - Eickelmann, Birgit
ED - Endberg, M.
ID - 44666
T2 - Schule digital – der Länderindikator 2021. Lehren und Lernen mit digitalen Medien in der Sekundarstufe I in Deutschland im Bundesländervergleich und im Trend seit 2017
TI - Entwicklungen der schulischen digitalen Infrastruktur für das Lehren und Lernen durch Investitionsprogramme aus Sicht von Lehrkräften der Sekundarstufe I
ER -
TY - CONF
AU - Reinlein, T.
AU - Eickelmann, Birgit
ID - 51864
T2 - Session-Beitrag auf der Konferenz des Forum Bildung Digitalisierung ‚Taking Charge – Visionen für das System Schule‘. Berlin
TI - Entwicklungsbereiche für das Lernen in der digitalen Welt – Vorstellung und Diskussion des Impulspapiers für Schulen in NRW
ER -
TY - JOUR
AU - Xin, Yang
AU - Piskunen, Petteri
AU - Suma, Antonio
AU - Li, Changyong
AU - Ijäs, Heini
AU - Ojasalo, Sofia
AU - Seitz, Iris
AU - Kostiainen, Mauri A.
AU - Grundmeier, Guido
AU - Linko, Veikko
AU - Keller, Adrian
ID - 30738
JF - Small
KW - Biomaterials
KW - Biotechnology
KW - General Materials Science
KW - General Chemistry
SN - 1613-6810
TI - Environment‐Dependent Stability and Mechanical Properties of DNA Origami Six‐Helix Bundles with Different Crossover Spacings
VL - 18
ER -
TY - BOOK
ED - Hagengruber, Ruth Edith
ID - 34702
KW - Émilie Du Châtelet
KW - History of Science
KW - Kant
KW - Newton
KW - Maupertuis
KW - Voltaire
SN - 2523-8760
TI - Époque Émilienne
ER -
TY - CONF
AU - Meier, Jana
AU - Vogelsang, Christoph
ID - 35594
TI - Erfassung der Reflexionskompetenz angehender Lehrpersonen mittels (offener) Situationsvignetten.
ER -
TY - JOUR
AU - Krebs, Benjamin
AU - Kabst, Rüdiger
ID - 49095
JF - PERSONALquartely
TI - Erfolgreiches People Management in KMU und Start-ups
VL - 4
ER -
TY - GEN
AU - Amanzada, Ahmad Saki
ID - 30646
TI - Erfolgsfaktoren von Crowdfunding-Plattformen
ER -
TY - CHAP
AU - Meyer-Hamme, Johannes
AU - Chmiel, Cornelia
ED - Georgi, Viola
ED - Lücke, Martin
ED - Meyer-Hamme, Johannes
ED - Spielhaus, Riem
ID - 41133
T2 - Geschichten im Wandel: Neue Perspektiven für die Erinnerungskultur in der Migrationsgesellschaft
TI - Erinnerungspraktiken und historisches Lernen
ER -
TY - JOUR
AU - Radermacher, Katharina
AU - Herdejürgen, Enja Marie
ID - 42782
IS - 1/2022
JF - PERSONALquarterly
TI - Erkenntnisse aus Arbeitgeberbewertungen – Potenzial von Atmosphäre und Arbeitsplätzen.
ER -
TY - GEN
ED - Radermacher, Katharina
ED - Herdejürgen, Enja
ID - 49215
T2 - Studie Industrieverband Büro und Arbeitswelt e. V. (IBA).
TI - Erkenntnisse aus Arbeitgeberbewertungen: Das Potential von Arbeitsatmosphäre und Arbeitsplatzgestaltung für die Weiterempfehlungsbereitschaft
ER -
TY - GEN
AU - Abendroth, Sonja
AU - Hoeft, Maike
AU - Meusel, Sarah
ID - 48016
TI - Erkenntnisse zu Verstetigung und Transfer im Bundesprogramm "Kita-Einstieg: Brücken bauen in frühe Bildung"
ER -
TY - JOUR
AU - Goller, Michael
AU - Caruso, Carina
AU - Harteis, Christian
ID - 50408
IS - 4
JF - SEMINAR – Lehrerbildung und Schule
TI - Erkenntnisse zur Verbesserung von Mentoringprozessen in der Lehrer:innenausbildung
VL - 28
ER -
TY - CHAP
AU - Schlegel-Matthies, Kirsten
ID - 35975
SN - 978-3-8252-5767-5
T2 - Konsum - Ernährung - Gesundheit. Grundlagen der Ernährungs- und Verbraucherbildung
TI - Ernährungs- und Verbraucherbildung
ER -
TY - CHAP
AU - Schlegel-Matthies, Kirsten
ID - 35973
SN - 978-3-8252-5767-5
T2 - Konsum - Ernährung - Gesundheit. Grundlagen der Ernährungs- und Verbraucherbildung
TI - Ernährungs- und Verbraucherbildung zwischen Wissenschaft und Lebenswelt
ER -
TY - JOUR
AB - Abstract
We derive a numerical method, based on operator splitting, to abstract parabolic semilinear boundary coupled systems. The method decouples the linear components that describe the coupling and the dynamics in the abstract bulk- and surface-spaces, and treats the nonlinear terms similarly to an exponential integrator. The convergence proof is based on estimates for a recursive formulation of the error, using the parabolic smoothing property of analytic semigroups, and a careful comparison of the exact and approximate flows. This analysis also requires a deep understanding of the effects of the Dirichlet operator (the abstract version of the harmonic extension operator), which is essential for the stable coupling in our method. Numerical experiments, including problems with dynamic boundary conditions, reporting on convergence rates are presented.
AU - Csomós, Petra
AU - Farkas, Bálint
AU - Kovács, Balázs
ID - 45968
JF - IMA Journal of Numerical Analysis
KW - Applied Mathematics
KW - Computational Mathematics
KW - General Mathematics
SN - 0272-4979
TI - Error estimates for a splitting integrator for abstract semilinear boundary coupled systems
ER -
TY - GEN
AU - Bähr, Philipp
AU - Striewe, Marius
AU - Meschut, Gerson
AU - Sommer, Silke
ID - 52687
T2 - 12. Kolloquium: Gemeinsame Forschung in der Mechanischen Fügetechnik
TI - Ersatzmodellentwicklung zur Berücksichtigung der lokalen Fügeelementkinematik in mechanisch gefügten Verbindungen für die Bauteilauslegung im stahlintensiven Karosseriebau
ER -
TY - GEN
AU - Staffel, Florian Lukas
ID - 49479
TI - Erst Überfluss, dann überflüssig? Erneuerungsdialoge zwischen Unternehmensgeschichte und (allgemeiner) Geschichtswissenschaft
ER -
TY - CHAP
AU - Meister, Dorothee M.
AU - Dehmel, Lukas
ED - Sander, Uwe
ED - von Gross, Friederike
ED - Hugger, Kai-Uwe
ID - 43140
T2 - Handbuch Medienpädagogik. 2. Auflage
TI - Erwachsenen- und Weiterbildung
ER -
TY - THES
AU - Endres-Fröhlich, Angelika Elfriede
ID - 32856
TI - Essays on Industrial Organization and Networks: Retail Bundling, Exclusive Dealing, and Network Disruption
ER -
TY - JOUR
AB - Immer mehr Kinder besuchen täglich pädagogische Einrichtungen und verbringen dort zunehmend mehr Zeit; dies führt dazu, dass sie auch vermehrt in pädagogischen Einrichtungen essen. Als Qualitätsmerkmal von Kindertageseinrichtungen wird dabei zunehmend das Thema Essen als gesunde Ernährung zentral. Gleichzeitig liegen bislang erst wenige Studien vor, die auch die Beteiligungs- und Selbstbestimmungsmöglichkeiten von Kindern beim Essen im Alltag der Kindertageseinrichtung betrachten. Auf der empirischen Basis der Frankfurter Kinderbefragung 2018 fragt der vorliegende Beitrag danach, mit welchen kollektiven Orientierungsmustern pädagogische Fachkräfte in Kindertageseinrichtungen die Mahlzeiten gestalten und welche Rolle sie den beteiligten Akteur*innen darin zuweisen. Während in den Gruppendiskussionen einerseits disparate Orientierungen an Ernährungserziehung und Ernährungsbildung sichtbar werden, eint sie andererseits, dass den Kindern selbst kaum substanzielle Einflussmöglichkeiten auf die soziale Gestaltung der Mahlzeit eröffnet werden.
AU - Klein, Alexandra
AU - Landhäußer, Sandra
ID - 35643
IS - 14
JF - Soziale Passagen
KW - Ernährung Mahlzeiten Gruppendiskussion Dokumentarische Methode Beteiligung
TI - Essen in Kindertageseinrichtungen. Orientierungsmuster von Fachkräften zwischen Anpassung und Ermöglichung
ER -
TY - GEN
ED - Blank, Andreas
ID - 50849
IS - 1
T2 - Intellectual History Review
TI - Esteem and Self-Esteem in Early Modern Ethics and Politics.
VL - 32
ER -
TY - GEN
ED - Blank, Andreas
ED - Toto, Francesco
ID - 50848
IS - 2
T2 - Rivista di filosofia
TI - Esteem and Self-Esteem in the British and the French Moralists: A Comparative Approach.
VL - 113
ER -
TY - GEN
AU - Schroeter-Wittke, Harald
ID - 41104
SN - 0540–6226
T2 - Jahrbuch für Evangelische Kirchengeschichte des Rheinlandes
TI - Esther Wipfler (Hg.), Das Gesangbuch und seine Bilder. Voraussetzungen, Gestaltung, Wirkung, Wien u.a. 2020
VL - 71
ER -
TY - CONF
AU - Schöppner, Volker
AU - Kleinschmidt, Dennis
ID - 34730
TI - Estimation and correction of non-isothermal effects of carbon black-filled rubber compounds in viscosity measurements
ER -
TY - JOUR
AB - Given strict emission targets and legal requirements, especially in the automotive industry, environmentally friendly and simultaneously versatile applicable production technologies are gaining importance. In this regard, the use of mechanical joining processes, such as clinching, enable assembly sheet metals to achieve strength properties similar to those of established thermal joining technologies. However, to guarantee a high reliability of the generated joint connection, the selection of a best-fitting joining technology as well as the meaningful description of individual joint properties is essential. In the context of clinching, few contributions have to date investigated the metamodel-based estimation and optimization of joint characteristics, such as neck or interlock thickness, by applying machine learning and genetic algorithms. Therefore, several regression models have been trained on varying databases and amounts of input parameters. However, if product engineers can only provide limited data for a new joining task, such as incomplete information on applied joining tool dimensions, previously trained metamodels often reach their limits. This often results in a significant loss of prediction quality and leads to increasing uncertainties and inaccuracies within the metamodel-based design of a clinch joint connection. Motivated by this, the presented contribution investigates different machine learning algorithms regarding their ability to achieve a satisfying estimation accuracy on limited input data applying a statistically based feature selection method. Through this, it is possible to identify which regression models are suitable to predict clinch joint characteristics considering only a minimum set of required input features. Thus, in addition to the opportunity to decrease the training effort as well as the model complexity, the subsequent formulation of design equations can pave the way to a more versatile application and reuse of pretrained metamodels on varying tool configurations for a given clinch joining task.
AU - Zirngibl, Christoph
AU - Schleich, Benjamin
AU - Wartzack, Sandro
ID - 34417
IS - 4
JF - AI
KW - Industrial and Manufacturing Engineering
SN - 2673-2688
TI - Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels
VL - 3
ER -
TY - JOUR
AU - Rodrigues, Agatha S.
AU - Kerschke, Pascal
AU - Pereira, Carlos Alberto De Bragança
AU - Trautmann, Heike
AU - Wagner, Carolin
AU - Hellingrath, Bernd
AU - Polpo, Adriano
ID - 52532
IS - 1
JF - Comput. Stat.
TI - Estimation of component reliability from superposed renewal processes by means of latent variables
VL - 37
ER -
TY - GEN
AU - Friesen, Olga
AU - Claes, Leander
AU - Feldmann, Nadine
AU - Henning, Bernd
ID - 6558
TI - Estimation of piezoelectric material parameters of ring-shaped specimens
ER -
TY - CONF
AU - Johannesmann, Sarah
AU - Claes, Leander
AU - Henning, Bernd
ID - 6588
T2 - Fortschritte der Akustik - DAGA 2022
TI - Estimation of viscoelastic material parameters of polymers using Lamb waves
ER -
TY - GEN
AU - Hilgert, Joachim
ID - 51554
T2 - Mathematische Semesterberichte
TI - Ethan D. Bolker und Maura B. Mast: Common Sense Mathematics, Second Edition. AMS/MAA Press 2021
VL - 69
ER -
TY - JOUR
AU - Mirbabaie, Milad
AU - Brendel, Alfred B.
AU - Hofeditz, Lennart
ID - 37147
IS - 1
JF - Communications of the Association for Information Systems
KW - Information Systems
SN - 1529-3181
TI - Ethics and AI in Information Systems Research
VL - 50
ER -
TY - CONF
AU - Hofeditz, Lennart
AU - Mirbabaie, Milad
AU - Luther, Audrey
AU - Mauth, Riccarda
AU - Rentemeister, Ina
ID - 37170
T2 - HICSS
TI - Ethics Guidelines for Using AI-based Algorithms in Recruiting: Learnings from a Systematic Literature Review.
ER -
TY - GEN
AU - Beutner, Marc
AU - Schneider, Jennifer Nicole
ID - 48240
TI - EU-CERT - European Certificates and Accreditation for European Projects
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48247
TI - EU-CERT - European Certificates and Accreditation for European Projects
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48248
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT – Accreditation Conference. Current Status of the EU-CERT project
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48443
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT – Accreditation Conference. Dissemination and Exploitation
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48251
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT – Accreditation Conference. Insight into PR1: EU-CERT - Research on Quality Criteria, Accreditation and Certificate Structures
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
AU - Lindenthal, Helene Maja
ID - 48442
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT – Accreditation Conference. Insights into ideas for the Accreditation and Certification Concept
ER -
TY - GEN
AU - Beutner, Marc
AU - Schneider, Jennifer Nicole
ID - 48244
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT-Project - Dissemination and Exploitation
ER -
TY - GEN
AU - Beutner, Marc
AU - Schneider, Jennifer Nicole
ID - 48242
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT-Project - Insight into PR2: EU-CERT - Concept Design for Accreditation and Certification Processes
ER -
TY - GEN
AU - Beutner, Marc
AU - Schneider, Jennifer Nicole
ID - 48245
TI - EU-CERT - European Certificates and Accreditation for European Projects. The EU-CERT-Project - Insight into PR4: EU-CERT - Accreditation Handbook
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48252
TI - EU-CERT. First Transnational Project Meeting. Presentation at the EU-CERT Meeting: Financial, Marketing and Dissemination.
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48254
TI - EU-CERT. Second Transnational Project Meeting.Presentation about accreditation and certificate structures
ER -
TY - GEN
AU - Beutner, Marc
AU - Schneider, Jennifer Nicole
ID - 48241
TI - European Certificates and Accreditation for European Projects. The EU-CERT-Project – Insight into PR1: EU-CERT - Research on Quality Criteria, Accreditation and Certificate Structures
ER -
TY - JOUR
AU - Scheiwe, Lisa
ID - 33381
IS - 2
JF - Anglistik
TI - Evaluating Accents of English in ELT Textbooks Used at German Secondary Schools
VL - 33
ER -
TY - GEN
AU - Anonymous, A
ID - 34962
TI - Evaluating database systems relying on secure multiparty computation
ER -
TY - CONF
AB - Within innovation management, choosing the best fitting product idea is the most important decision point. The future existence and success of the organization is depending on selected product ideas. To find the best fitting idea for an organization, it needs evaluation criteria representing the organizations mission Therefore, this study focuses on a holistic overview about evaluation criteria and on supporting organizations in the process to select its individual evaluation criteria. Based on a literature study, existing approaches regarding evaluation criteria in product idea selection are identified and a list of evaluation criteria is reworked. Using the list of evaluation criteria, a prioritization method is created. Within an interview with experts in innovation management, the method is discussed regarding usability and the level of assistance in product idea selection. The developed criteria can be used directly by innovation manager and industrial practitioners to evaluate potential product ideas.
AU - Gräßler, Iris
AU - Koch, Anna-Sophie
ID - 34166
KW - innovation management
KW - evaluation criteria
KW - idea selection
KW - idea evaluation
KW - meta-study
SN - 978-952-335-694-8
T2 - XXXIII Proceedings of the ISPIM Innovation Conference
TI - Evaluation Criteria in Product Idea Selection Decisions
ER -
TY - JOUR
AB - Ziel dieser Studie ist es den digitalen moodlegestützten asynchronen Sprachkurs Fachspezifisches Chinesisch für das „Maschinenbau in China Programm“ (mb-cn) der Fakultät für Maschinenbau der Universität Paderborn zu evaluieren, um Handlungsempfehlungen für zukünftig ähnlich aufgebaute Projekte zu entwickeln. Dazu wurden im Sommersemester 2021 sechs leitfadengestützte Interviews geführt. Die Interviews wurden anschließend mithilfe von deduktiv ermittelten Kategorien, die sich aus dem Technology Acceptance Model 2 (TAM2) nach Venkatesh und Davis (2000) ergaben, nach Mayring (2015) analysiert, um abschließend die Forschungsfrage zu beantworten: „Wie bewerten mb-cn Ingenieurstudierende die wahrgenommene Nützlichkeit der digitalen Sprachlernangebote des Kurses Fachspezifisches Chinesisch?“.
AU - Hambach, Dennis
ID - 43433
IS - 8
JF - die hochschullehre. Interdisziplinäre Zeitschrift für Hochschule und Lehre
KW - Technology Acceptance Model
KW - Fachspezifische Chinesischsprachkurse
KW - digitale Lehre
KW - Moodle
KW - Evaluation
TI - Evaluation eines digitalen Fachspezifischen Chinesischsprachkurses für Studierende des Ingenieurwesens
ER -
TY - GEN
AU - Roopa, Rajanna
ID - 30152
TI - Evaluation of Algorithms for the Node Capacitated Clique
ER -
TY - JOUR
AB - AbstractIndustry 4.0 promises many potentials in production. Examples are a data-driven optimization of production processes of individual machines, driverless transport systems, and assistance systems. Nevertheless, companies are still hesitant to invest in Industry 4.0 applications. Studies show that one of the main reasons for that is the unclear economic benefit. In this work, we present a systematic approach for the evaluation of Industry 4.0 applications in production. The main goal of the systematic is to create transparency over the evaluation process of an investment in an Industry 4.0 application in production. The evaluation of a concrete technical solution in an existing production system is supported. As a theoretical foundation, a characterization of investments in Industry 4.0 applications is given. From that, a procedure model is derived. It puts the activities to be carried out, the tools to be used and results in a temporal context. The application of the systematic is shown on the basis of an application example.
AU - Joppen, Robert
AU - Kühn, Arno
AU - Förster, Magdalena
AU - Dumitrescu, Roman
ID - 33714
JF - Journal of the Knowledge Economy
KW - Economics and Econometrics
SN - 1868-7865
TI - Evaluation of Industry 4.0 Applications in Production
ER -
TY - CONF
AB - The manufacturing industry contributes immensely to the global emissions and therefore is
a key factor that has to be addressed when a more sustainable production is desired. Laser Powder
Bed Fusion (LPBF) is an AM technique that offers the possibility to manufacture metal parts in a
more material efficient way due to the layer-by-layer build-up. Nevertheless, the processing chain
for parts from LPBF contains additional steps like powder atomization, which also influence the
ecological footprint of the production chain. Within this work, a life-cycle model for the production
step of parts from AlSi10Mg powder material is developed. The model is supplied with data from
the powder atomization up to the production step, either by literature, database or experimental
measurements during production. The footprint in terms of CO2 emissions is then analyzed and
emission-intense steps are identified. Two manufacturing scenarios are considered to evaluate the
sensitivity on the emissions.
AU - Bödger, Christian
AU - Weiss, Christian
AU - Schiefer, Ekkehard
AU - Heussen, Daniel
AU - Haefner, Constantin
ID - 50744
T2 - Proceedings of the 33rd Annual International Solid Freeform Fabrication Symposium – An Additive Manufacturing Conference
TI - Evaluation of the Ecological Footprint for Parts from AlSi10Mg manufactured by Laser Powder Bed Fusion
ER -
TY - CHAP
AU - Schürmann, Mirko
AU - Liebendörfer, Michael
AU - Büdenbender-Kuklinski, Christiane
AU - Lankeit, Elisa
AU - Ruge, Johanna
AU - Schaper, Niclas
AU - Biehler, Rolf
AU - Hochmuth, Reinhard
ED - Hochmuth, Reinhard
ED - Biehler, Rolf
ED - Liebendörfer, Michael
ED - Schaper, Niclas
ID - 42655
SN - 2197-8751
T2 - Unterstützungsmaßnahmen in mathematikbezogenen Studiengängen - Konzepte, Praxisbeispiele und Untersuchungsergebnisse
TI - Evaluation von Unterstützungsmaßnahmen in mathematikbezogenen Studiengängen
ER -
TY - GEN
AB - We test the ability of the "escape mechanism" to create the anisotropic flow
observed in high-energy nuclear collisions. We compare the flow harmonics $v_n$
in the few-rescatterings regime from two types of transport simulations, with
$2\to 2$ and $2\to 0$ collision kernels respectively, and from analytical
calculations neglecting the gain term of the Boltzmann equation. We find that
the even flow harmonics are similar in the three approaches, while the odd
harmonics differ significantly.
AU - Bachmann, Benedikt
AU - Borghini, Nicolas
AU - Feld, Nina
AU - Roch, Hendrik
ID - 32178
T2 - arXiv:2203.13306
TI - Even anisotropic-flow harmonics are from Venus, odd ones are from Mars
ER -
TY - JOUR
AU - Steffen, Eckhard
AU - Wolf, Isaak Hieronymus
ID - 31543
IS - 3
JF - Graphs and Combinatorics
KW - Discrete Mathematics and Combinatorics
KW - Theoretical Computer Science
SN - 0911-0119
TI - Even Factors in Edge-Chromatic-Critical Graphs with a Small Number of Divalent Vertices
VL - 38
ER -
TY - CONF
AU - Lienen, Christian
AU - Platzner, Marco
ID - 34005
T2 - 2022 25th Euromicro Conference on Digital System Design (DSD)
TI - Event-Driven Programming of FPGA-accelerated ROS 2 Robotics Applications
ER -
TY - GEN
AU - Flath, Beate
ID - 49207
TI - Events in der praktisch-theologischen Theoriebildung
ER -
TY - CONF
AB - Classifying nodes in knowledge graphs is an important task, e.g., predicting
missing types of entities, predicting which molecules cause cancer, or
predicting which drugs are promising treatment candidates. While black-box
models often achieve high predictive performance, they are only post-hoc and
locally explainable and do not allow the learned model to be easily enriched
with domain knowledge. Towards this end, learning description logic concepts
from positive and negative examples has been proposed. However, learning such
concepts often takes a long time and state-of-the-art approaches provide
limited support for literal data values, although they are crucial for many
applications. In this paper, we propose EvoLearner - an evolutionary approach
to learn ALCQ(D), which is the attributive language with complement (ALC)
paired with qualified cardinality restrictions (Q) and data properties (D). We
contribute a novel initialization method for the initial population: starting
from positive examples (nodes in the knowledge graph), we perform biased random
walks and translate them to description logic concepts. Moreover, we improve
support for data properties by maximizing information gain when deciding where
to split the data. We show that our approach significantly outperforms the
state of the art on the benchmarking framework SML-Bench for structured machine
learning. Our ablation study confirms that this is due to our novel
initialization method and support for data properties.
AU - Heindorf, Stefan
AU - Blübaum, Lukas
AU - Düsterhus, Nick
AU - Werner, Till
AU - Golani, Varun Nandkumar
AU - Demir, Caglar
AU - Ngonga Ngomo, Axel-Cyrille
ID - 29290
T2 - WWW
TI - EvoLearner: Learning Description Logics with Evolutionary Algorithms
ER -
TY - CONF
AU - Bossek, Jakob
AU - Neumann, Aneta
AU - Neumann, Frank
ID - 48868
SN - 978-1-4503-9268-6
T2 - Proceedings of the Genetic and Evolutionary Computation Conference Companion
TI - Evolutionary Diversity Optimization for Combinatorial Optimization: Tutorial at GECCO’22, Boston, USA
ER -
TY - GEN
AB - We extend a recent result in high-gain feedback output tracking control to achieve exact tracking within finite time, i.e., the output of a system and its relevant derivatives have certain exact values at a predefined finite time.
We propose a new funnel control scheme achieving this, whereas the error between the reference and the output evolves within prescribed bounds.
Applications of this are, for instance, linking up two parts of a train, or docking spaceships.
AU - Lanza, Lukas Johannes
ID - 29952
TI - Exact output tracking in prescribed finite time via funnel control
ER -
TY - GEN
AU - Margraf, Linda
AU - Krause, Daniel
AU - Weigelt, Matthias
ED - Voelcker-Rehage, C.
ED - Pixa, N.H.
ED - Rudisch, J.
ED - Belkin, V.
ED - Eils, E.
ED - Fröhlich, S.
ED - Göcking, T.
ED - Hendricks, M.
ED - Janssen, T.
ED - Julian, R.
ED - Kopnarski, L.
ED - Kutz, D.F.
ED - Mack, M.
ED - Mendler, L.
ED - Stojan, R.
ED - Thorwesten, L.
ID - 37837
TI - Examining the Neural Processes of Valence-Dependent Feedback Processing and Practice-Related Changes in Extensive Motor Learning
ER -
TY - THES
AU - Hinrichs, Benjamin
ID - 43501
TI - Existence of Ground States for Infrared-Critical Models of Quantum Field Theory
ER -
TY - CONF
AB - We review recent results on the existence of ground states for the
infrared-critical spin boson model, which describes the interaction of a
massless bosonic field with a two-state quantum system. Explicitly, we derive a
critical coupling $\lambda_{\mathsf c}>0$ such that the spin boson model
exhibits a ground state for coupling constants $\lambda$ with
$|\lambda|<\lambda_{\mathsf c}$. The proof combines a Feynman-Kac-Nelson
formula for the spin boson model with external magnetic field, a 1D-Ising model
correlation bound and a compactness argument in Fock space. Elaborating on the
connection to a long-range 1D-Ising model, we briefly discuss the conjecture
that the spin boson model does not have a ground state at large coupling. This
note is based on joint work with David Hasler and Oliver Siebert.
AU - Hinrichs, Benjamin
ED - Hiroshima, Fumio
ID - 43496
T2 - Mathematical aspects of quantum fields and related topics
TI - Existence of Ground States in the Infrared-Critial Spin Boson Model
VL - 2235
ER -
TY - JOUR
AU - Tao, Youshan
AU - Winkler, Michael
ID - 35548
JF - SIAM Journal on Mathematical Analysis
TI - Existence theory and qualitative analysis for a fully cross-diffusive predator-prey system
VL - 54
ER -
TY - JOUR
AB - AbstractBusiness process management (BPM) drives corporate success through effective and efficient processes. In recent decades, knowledge has been accumulated regarding the identification, discovery, analysis, design, implementation, and monitoring of business processes. This includes methods and tools for tackling various kinds of process change such as continuous process improvement, process reengineering, process innovation, and process drift. However, exogenous shocks, which lead to unintentional and radical process change, have been neglected in BPM research although they severely affect an organization’s context, strategy, and business processes. This research note conceptualizes the interplay of exogenous shocks and BPM in terms of the effects that such shocks can have on organizations’ overall process performance over time. On this foundation, related challenges and opportunities for BPM via several rounds of idea generation and consolidation within a diverse team of BPM scholars are identified. The paper discusses findings in light of extant literature from BPM and related disciplines, as well as present avenues for future (BPM) research to invigorate the academic discourse on the topic.
AU - Röglinger, Maximilian
AU - Plattfaut, Ralf
AU - Borghoff, Vincent
AU - Kerpedzhiev, Georgi
AU - Becker, Jörg
AU - Beverungen, Daniel
AU - vom Brocke, Jan
AU - Van Looy, Amy
AU - del-Río-Ortega, Adela
AU - Rinderle-Ma, Stefanie
AU - Rosemann, Michael
AU - Santoro, Flavia Maria
AU - Trkman, Peter
ID - 35741
IS - 5
JF - Business & Information Systems Engineering
KW - Information Systems
SN - 2363-7005
TI - Exogenous Shocks and Business Process Management
VL - 64
ER -
TY - JOUR
AB - Carbon fiber reinforced plastics (CFRPs) gained high interest in industrial applications because of their excellent strength and low specific weight. The stacking sequence of the unidirectional plies forming a CFRP laminate, and their thicknesses, primarily determine the mechanical performance. However, during manufacturing, defects, e.g., pores and residual stresses, are induced, both affecting the mechanical properties. The objective of the present work is to accurately measure residual stresses in CFRPs as well as to investigate the effects of stacking sequence, overall laminate thickness, and the presence of pores on the residual stress state. Residual stresses were measured through the incremental hole-drilling method (HDM). Adequate procedures have been applied to evaluate the residual stresses for orthotropic materials, including calculating the calibration coefficients through finite element analysis (FEA) based on stacking sequence, laminate thickness and mechanical properties. Using optical microscopy (OM) and computed tomography (CT), profound insights into the cross-sectional and three-dimensional microstructure, e.g., location and shape of process-induced pores, were obtained. This microstructural information allowed for a comprehensive understanding of the experimentally determined strain and stress results, particularly at the transition zone between the individual plies. The effect of pores on residual stresses was investigated by considering pores to calculate the calibration coefficients at a depth of 0.06 mm to 0.12 mm in the model and utilizing these results for residual stress evaluation. A maximum difference of 46% in stress between defect-free and porous material sample conditions was observed at a hole depth of 0.65 mm. The significance of employing correctly calculated coefficients for the residual stress evaluation is highlighted by mechanical validation tests.
AU - Wu, Tao
AU - Kruse, Roland
AU - Tinkloh, Steffen Rainer
AU - Tröster, Thomas
AU - Zinn, Wolfgang
AU - Lauhoff, Christian
AU - Niendorf, Thomas
ID - 31496
IS - 5
JF - Journal of Composites Science
KW - Engineering (miscellaneous)
KW - Ceramics and Composites
SN - 2504-477X
TI - Experimental Analysis of Residual Stresses in CFRPs through Hole-Drilling Method: The Role of Stacking Sequence, Thickness, and Defects
VL - 6
ER -
TY - JOUR
AU - Knyazkov, Denis A.
AU - Cherepanov, Andrey V.
AU - Kiselev, Vitaly G.
AU - Gerasimov, Ilya E.
AU - Kasper, Tina
AU - Shmakov, Andrey G.
ID - 36810
JF - Proceedings of the Combustion Institute
KW - Physical and Theoretical Chemistry
KW - Mechanical Engineering
KW - General Chemical Engineering
SN - 1540-7489
TI - Experimental and kinetic modeling study of the positive ions in premixed ethylene flames over a range of equivalence ratios
ER -
TY - CONF
AU - Römisch, David
AU - Merklein, Marion
ID - 36468
TI - Experimental and Numerical Analysis of Cold Formed Multi Pin Structures Using a Multi-Acting Tool Design
ER -
TY - JOUR
AU - Böhnke, Max
AU - Bielak, Christian Roman
AU - Bobbert, Mathias
AU - Meschut, Gerson
ID - 34572
JF - Proceedings of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design and Applications
TI - Experimental and numerical investigation of the influence of multiaxial loading conditions on the failure behavior of clinched joints
ER -
TY - JOUR
AB - Background. Clinching is a conventional cold forming process in which two or more sheets can be joined without auxiliary parts. A pre-forming of the parts to be joined, which is introduced by previous manufacturing steps, has an influence on the joining result. When considering the suitability for joining with regard to the formability of the materials, the influence of the preforming steps must be taken into account. The influences of strain hardening and sheet thickness on the joining properties must be investigated. In this context, a Finite Element Method (FEM) based metamodel analysis of the clinching process was carried out in [1] to investigate the robustness of the clinching process with respect to the different material pre-strains. In [2], the method was extended to the load bearing simulation.Procedure. The metamodel from preliminary work based on various FE models, which predicts the load-bearing capacity of a clinched joint influenced by pre-straining, is compared here with experimental data and the accuracy of the metamodel prediction is discussed. For this purpose an experimental procedure was further develop which allows the preforming of metal sheets from which joining specimens can be separated with a certain degree of unidirectional deformation. In the study, the procedure for preparing the joint specimens and the results of the loading tests are presented. Different possible relevant pre-strain combinations are investigated and compared with the simulation results, to validate the FE models and choose suitable metamodel.
AU - Bielak, Christian Roman
AU - Böhnke, Max
AU - Bobbert, Mathias
AU - Meschut, Gerson
ID - 32413
JF - Key Engineering Materials
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - General Materials Science
SN - 1662-9795
TI - Experimental and Numerical Investigation on Manufacturing-Induced Pre-Strain on the Load-Bearing Capacity of Clinched Joints
VL - 926
ER -
TY - JOUR
AB - AbstractAdditive manufacturing is a promising tool for tailored solutions in chemical engineering. This applies in particular to the design of lab‐scale packed bed columns. We present experimental results to characterize a lab‐scale 3D printed structured metal packing and compare it to a conventional counterpart. The results indicate that necessary adjustments for the manufacturing process of the metal material have an influence on important operating parameters, resulting in higher specific pressure drop, slightly higher liquid holdup and lower mass transfer efficiency.
AU - Riese, Julia
AU - Reitze, Arnulf
AU - Grünewald, Marcus
ID - 47561
IS - 7
JF - Chemie Ingenieur Technik
KW - Industrial and Manufacturing Engineering
KW - General Chemical Engineering
KW - General Chemistry
SN - 0009-286X
TI - Experimental Characterization of 3D Printed Structured Metal Packing with an Enclosed Column Wall
VL - 94
ER -
TY - CONF
AU - Lange, Jarren
AU - Schmies, Dominik
AU - Stille, Karl Stephan Christian
AU - Böcker, Joachim
AU - Wallscheid, Oliver
ID - 33489
T2 - EPE'22 ECCE Europe
TI - Experimental Comparison of FPGA-Implemented Model Predictive Voltage Control to Cascaded Proportional Resonant Control for a Three-Phase Four-Wire Three-Level Grid-Forming Inverter of 250 kVA
ER -
TY - CONF
AU - Rehlaender, Philipp
AU - Korthauer, Bastian
AU - Schafmeister, Frank
AU - Böcker, Joachim
ID - 44164
T2 - 2022 24th European Conference on Power Electronics and Applications (EPE’22 ECCE Europe)
TI - Experimental Demonstration of a 2.2kW Active-Clamp Converter for High-Current Wide-Voltage-Transfer Ratio Applications
ER -
TY - CONF
AB - ue to the constantly growing energy demand of power electronics and the need to reduce the size of electronic components like power modules for e-mobility, new challenges arise for ultrasonic wire bonding: the electrical connection must endure higher thermal and mechanical stress while the connecting partners become more sensitive or require more energy to get bonded. Past investigations have shown already that multi-dimensional ultrasonic bonding and welding yield the same or even better bond quality while reducing the load on the components. This contribution is intended to show whether multidi-mensional thick wire bonding is a promising concept to over-come the new challenges. The focus is on experimental investi-gations of different bond tool trajectories in ultrasonic wire bonding of aluminum and copper wire on DCB's and chips. The bond quality is analyzed by shear tests, microsections and, in the case of aluminum bonding, by a new machine learning method for an objective automated evaluation of the sheared area.
AU - Scheidemann, Claus
AU - Kirsch, Olaf
AU - Hemsel, Tobias
AU - Sextro, Walter
ID - 34104
T2 - 2022 IEEE 9th Electronics System-Integration Technology Conference (ESTC)
TI - Experimental Investigation of Multidimensional Ultrasonic Heavy Wire Bonding
ER -
TY - JOUR
AU - Khider Abbas Abbas, Wameedh
AU - Baumhögger, Elmar
AU - Vrabec, Jadran
ID - 31808
JF - Energy Conversion and Management: X
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 2590-1745
TI - Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid
ER -
TY - JOUR
AU - Abbas, Wameedh Khider Abbas
AU - Baumhögger, Elmar
AU - Vrabec, Jadran
ID - 45016
JF - Energy Conversion and Management: X
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 2590-1745
TI - Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid
VL - 15
ER -
TY - JOUR
AU - Abbas, Wameedh Khider Abbas
AU - Baumhögger, Elmar
AU - Vrabec, Jadran
ID - 45017
JF - Energy Conversion and Management: X
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Nuclear Energy and Engineering
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 2590-1745
TI - Experimental investigation of organic Rankine cycle performance using alkanes or hexamethyldisiloxane as a working fluid
VL - 15
ER -
TY - CONF
AB - To achieve optimum bond results at ultrasonic bonding thick copper wire on sensitive components is quite challenging.
Bearing in mind that high normal force and ultrasonic power are needed for bond quality but as well increase stress and finally failure risk of the substrate, methods should be found to achieve high bond quality even at lower bond parameters. Therefore, bond experiments with different bond tool grove geometries have been conducted for copper and aluminum wire on direct copper bonded (DCB) substrates to investigate the impact of geometric parameters on bond formation and bond quality. The wire material depending impact of geometry changes on the bond formation and deformation was quantified. Additionally, a bonding parameter design of experiments (DOE) has been conducted for the reference and the most promising groove geometry. Higher shear values were achieved at reduced vertical tool displacement for most bonding parameter combinations, compared to the reference tool. This behavior allows for reducing ultrasonic power to obtain equal shear values; consequently, mechanical stresses in the interface decrease. This could potentially reduce the risk of chip damage and thus yield loss.
AU - Hagedorn, Oliver Ernst Caspar
AU - Broll, Marian
AU - Kirsch, Olaf
AU - Hemsel, Tobias
AU - Sextro, Walter
ID - 30371
SN - ISBN 978-3-8007-5757-2
T2 - CIPS 2022 - 12th International Conference on Integrated Power Electronics Systems
TI - Experimental Investigation of the Influence of different Bond Tool Grooves on the Bond Quality for Ultrasonic Thick Wire Bonding
ER -
TY - JOUR
AB - Iso-octane is frequently used as a surrogate fuel or as a component in primary reference fuel blends when low-temperature combustion strategies in engines are investigated. To develop control strategies for these engines, the reaction kinetics of iso-octane must be known starting from the low temperatures and intermediate pressures before ignition to the high temperatures and pressures of combustion. This work adds new experimental data sets to the validation data for reaction mechanism development by investigating the oxidation of iso-octane in stoichiometric mixtures in a flow reactor at pressures of p = 1, 10, and 20 bar and 473K ≤ T ≤ 973 K. The experimental data are compared to simulations with recent reaction mechanisms [Atef et al., Combustion and Flame 178, (2017), Bagheri et al., Combustion and Flame 212, (2020), Cai et al., Proceedings of the Combustion Institute 37, (2018), Fang et al., Combustion and Flame 214, (2020)]. The comparison between experimental and simulated mole fractions as function of temperature show reasonable agreement for all investigated pressures. In particular, the experimentally observed onset of low-temperature reactivity above a certain pressure, the shift of the negative temperature coefficient (NTC) regime with increasing pressure to higher temperatures, and the acceleration of the high-temperature chemistry are captured well in the simulations. Deviations between experimental and simulated results are discussed in detail for the reactivity of iso-octane and some key intermediates such as 2,2,4,4-tetramethyl-tetrahydrofuran, iso-butene and acetone at low temperatures.
AU - Shaqiri, S.
AU - Kaczmarek, D.
AU - vom Lehn, F.
AU - Beeckmann, J.
AU - Pitsch, H.
AU - Kasper, Tina
ID - 36815
JF - Frontiers in Energy Research
KW - Economics and Econometrics
KW - Energy Engineering and Power Technology
KW - Fuel Technology
KW - Renewable Energy
KW - Sustainability and the Environment
SN - 2296-598X
TI - Experimental Investigation of the Pressure Dependence of Iso-Octane Combustion
VL - 10
ER -
TY - CONF
AB - The conduction of structure-borne sound through joints causes energy dissipation. The sound reduction index describes this energy loss as a level decrease in the particle velocity across series-connected damping elements for which the superposition principle applies. This simple model can help to develop a testing method for joints based on this characteristic energy loss. In this paper, this model is experimentally evaluated for multiple in-series clinched aluminium sheets. Samples connected by several clinch points arranged in parallel are investigated experimentally, and the results are discussed.
AU - Stephan, Richard
AU - Brosius, Alexander
ID - 36462
KW - clinching
KW - mechanical joining
KW - damping
KW - model
KW - evaluation
KW - dynamics
T2 - The 28th Saxon Conference on Forming Technology SFU and the 7th International Conference on Accuracy in Forming Technology ICAFT
TI - Experimental Measurement Method and Evaluation of an Analytical Approach for Sound Conduction through Multiple Clinched Sheets
ER -
TY - CONF
AU - Buckmann, Felix
AU - Kenig, Eugeny
ID - 33254
T2 - Annual Meeting on Reaction Engineering and ProcessNet Subject Division "Heat and Mass Transfer"
TI - Experimental study on the condensation of pure substances in outer pillow-plate channels
ER -
TY - JOUR
AB - Optical geometric phase encoded by in-plane spatial orientation of microstructures has promoted the rapid development of numerous functional meta-devices. However, pushing the concept of the geometric phase toward the acoustic community still faces challenges. In this work, we utilize two acoustic nonlocal metagratings that could support a direct conversion between an acoustic plane wave and a designated vortex mode to obtain the acoustic geometric phase, in which an orbital angular momentum conversion process plays a vital role. In addition, we realize the acoustic geometric phases of different orders by merely varying the orientation angle of the acoustic nonlocal metagratings. Intriguingly, according to our developed theory, we reveal that the reflective acoustic geometric phase, which is twice the transmissive one, can be readily realized by transferring the transmitted configuration to a reflected one. Both the theoretical study and experimental measurements verify the announced transmissive and reflective acoustic geometric phases. Moreover, the reconfigurability and continuous phase modulation that covers the 2π range shown by the acoustic geometric phases provide us with the alternatives in advanced acoustic wavefront control.
AU - Liu, Bingyi
AU - Zhou, Zhiling
AU - Wang, Yongtian
AU - Zentgraf, Thomas
AU - Li, Yong
AU - Huang, Lingling
ID - 31480
IS - 21
JF - Applied Physics Letters
KW - Physics and Astronomy (miscellaneous)
SN - 0003-6951
TI - Experimental verification of the acoustic geometric phase
VL - 120
ER -
TY - GEN
AU - Linnig, Jakob Antonio
ID - 34131
TI - Experimente im Bereich der Online-Bewertungen - Ein systematischer Literaturüberblick
ER -
TY - BOOK
AU - Göddecke, Johannes
AU - Meschut, Gerson
AU - Kötz, Fabian
AU - Matzenmiller, Anton
AU - Damm, Jannis
AU - Albiez, Matthias
AU - Ummenhofer, Thomas
ID - 44213
SN - 978-3-96780-137-8
TI - Experimentelle und numerische Untersuchung der Dämpfungseigenschaften geklebter Strukturen unter dynamischer Beanspruchung
ER -
TY - GEN
AU - Striewe, Marius
AU - Meschut, Gerson
AU - Schmelzle, Lars
AU - Mergheim, Julia
AU - Possart, Gunnar
AU - Steinmann, Paul
ID - 30222
T2 - 22. Kolloquium: Gemeinsame Forschung in der Klebtechnik
TI - Experimentelle und numerische Untersuchung des Einflusses variabler Betriebstemperaturen auf das Trag- und Versagensverhalten struktureller Klebverbindungen unter Crashbelastung
ER -
TY - JOUR
AU - Dai, Daokun
AU - Kenig, Eugeny Y.
AU - Numrich, Reiner
ID - 44239
IS - 6
JF - Chemie Ingenieur Technik
KW - Industrial and Manufacturing Engineering
KW - General Chemical Engineering
KW - General Chemistry
SN - 0009-286X
TI - Experimentelle Untersuchung der Tropfenkondensation am chemisch modifizierten Edelstahl‐Drallrohr
VL - 94
ER -
TY - CONF
AU - Tews, Karina
AU - Teutenberg, Dominik
AU - Meschut, Gerson
ID - 33561
TI - Experimentelle Untersuchung des Ermüdungsverhaltens und Berechnung der Lebensdauer von Stahlklebverbindungen bei multiaxialer Belastung
ER -
TY - CONF
AU - Wende, Marc
AU - Fischer, Florian
AU - Kenig, Eugeny
ID - 31069
T2 - Jahrestreffen der ProcessNet Fachgruppen Fluidverfahrenstechnik und Hochdruckverfahrenstechnik
TI - Experimentelle Untersuchung und Modellvalidierung zur Gravidestillation
ER -
TY - JOUR
AU - Schmid, Ute
AU - Wrede, Britta
ID - 51366
IS - 3-4
JF - KI - Künstliche Intelligenz
KW - Artificial Intelligence
SN - 0933-1875
TI - Explainable AI
VL - 36
ER -
TY - CONF
AB - Students are not aware and have little understanding of collecting and processing personal data in their everyday contexts of interaction with data-driven digital artifacts. To be aware of where, how and why data are collected and processed is important to be self-determined. Therefore, we develop and evaluate a teaching sequence to provide reasoning about data as a fundamental aspect of statistical literacy. This teaching sequences deals with the context of interaction with a cellular network where location data are collected. Students get real location data from an unknown person which can be explored with the aim to characterize the person. Students gain different insights by using different basic filters and explain how they achieve these. The results of the exploratory study indicate that students learned to gain insights by exploring given location data and that these insights may describe the person with detailed aspects that may not necessarily be true.
AU - Höper, Lukas
AU - Podworny, Susanne
AU - Schulte, Carsten
AU - Frischemeier, Daniel
ID - 31407
T2 - Proceedings of the IASE 2021 Satellite Conference
TI - Exploration of Location Data: Real Data in the Context of Interaction with a Cellular Network
ER -
TY - JOUR
AB - AbstractRecent approaches to Explainable AI (XAI) promise to satisfy diverse user expectations by allowing them to steer the interaction in order to elicit content relevant to them. However, little is known about how and to what extent the explainee takes part actively in the process of explaining. To tackle this empirical gap, we exploratively examined naturally occurring everyday explanations in doctor–patient interactions (N = 11). Following the social design of XAI, we view explanations as emerging in interactions: first, we identified the verbal behavior of both the explainer and the explainee in the sequential context, which we could assign to phases that were either monological or dialogical; second, we investigated in particular who was responsible for the initiation of the different phases. Finally, we took a closer look at the global conversational structure of explanations by applying a context-sensitive model of organizational jobs, thus adding a third layer of analysis. Results show that in our small sample of conversational explanations, both monological and dialogical phases varied in their length, timing of occurrence (at the early or later stages of the interaction) and their initiation (by the explainer or the explainee). They alternated several times in the course of the interaction. However, we also found some patterns suggesting that all interactions started with a monological phase initiated by the explainer. Both conversational partners contributed to the core organizational job that constitutes an explanation. We interpret the results as an indication for naturally occurring everyday explanations in doctor–patient interactions to be co-constructed on three levels of linguistic description: (1) by switching back and forth between monological to dialogical phases that (2) can be initiated by both partners and (3) by the mutual accomplishment and thus responsibility for an explanation’s core job that is crucial for the success of the explanation. Because of the explorative nature of our study, these results need to be investigated (a) with a larger sample and (b) in other contexts. However, our results suggest that future designs of artificial explainable systems should design the explanatory dialogue in such a way that it includes monological and dialogical phases that can be initiated not only by the explainer but also by the explainee, as both contribute to the core job of explicating procedural, clausal, or conceptual relations in explanations.
AU - Fisher, Josephine B.
AU - Lohmer, Vivien
AU - Kern, Friederike
AU - Barthlen, Winfried
AU - Gaus, Sebastian
AU - Rohlfing, Katharina
ID - 51349
IS - 3-4
JF - KI - Künstliche Intelligenz
KW - Artificial Intelligence
SN - 0933-1875
TI - Exploring Monological and Dialogical Phases in Naturally Occurring Explanations
VL - 36
ER -
TY - CONF
AU - Schoormann, T.
AU - Möller, F.
AU - Szopinski, Daniel
ID - 27280
T2 - Tagungsband der 17. Internationalen Tagung Wirtschaftsinformatik 2022
TI - Exploring purposes of using taxonomies
ER -
TY - JOUR
AB -
Voice commerce creates unprecedented opportunities for consumers and vendor firms to interact, engage, and relate. With artificial intelligence-powered voice assistants, consumers can make technology-mediated purchases without using their tactile senses, which represents a new space for commercial interactions. Drawing on the customer journey as an organizing framework, this article proposes a structured research agenda, in an attempt to shed light on the bright side effects of voice commerce while also acknowledging concerns for consumer protection and society in general. Voice assistants can enhance every stage of the purchase journey, yet their use might have negative consequences for customer relationships. In the prepurchase stage, voice assistants can act as information curators or manipulators. In the purchase stage, voice assistants can adopt roles as shopping concierges or impediments. In the postpurchase and usage stage, voice assistants can become trusted relationship partners or hostile intruders in consumers’ lives.
AU - Böhm, Eva
AU - Eggert, Andreas
AU - Garnefeld, Ina
AU - Holzmüller, Hartmut H.
AU - Schaefers, Tobias
AU - Steinhoff, Lena
AU - Woisetschläger, David M.
ID - 41318
IS - 4
JF - Journal of Service Management Research
KW - General Agricultural and Biological Sciences
SN - 2511-8676
TI - Exploring the Customer Journey of Voice Commerce: A Research Agenda
VL - 6
ER -
TY - JOUR
AU - Böhm, Eva
AU - Eggert, A.
AU - Garnefeld, I.
AU - Holzmüller, H.
AU - Schaefers, T
AU - Steinhoff, Lena
AU - Woisetschläger, D.
ID - 46660
IS - 4
JF - Journal of Service Management
TI - Exploring the customer journey of voice commerce: A research agenda
VL - 6
ER -
TY - JOUR
AU - Kulgemeyer, Christoph
AU - Hörnlein, Madeleine
AU - Sterzing, Fabian
ID - 35760
IS - 11
JF - International Journal of Science Education
KW - Education
SN - 0950-0693
TI - Exploring the effects of physics explainer videos and written explanations on declarative knowledge and the illusion of understanding
VL - 44
ER -
TY - CONF
AB - Generating instances of different properties is key to algorithm selection methods that differentiate between the performance of different solvers for a given combinatorial optimization problem. A wide range of methods using evolutionary computation techniques has been introduced in recent years. With this paper, we contribute to this area of research by providing a new approach based on quality diversity (QD) that is able to explore the whole feature space. QD algorithms allow to create solutions of high quality within a given feature space by splitting it up into boxes and improving solution quality within each box. We use our QD approach for the generation of TSP instances to visualize and analyze the variety of instances differentiating various TSP solvers and compare it to instances generated by established approaches from the literature.
AU - Bossek, Jakob
AU - Neumann, Frank
ID - 48861
KW - instance features
KW - instance generation
KW - quality diversity
KW - TSP
SN - 978-1-4503-9237-2
T2 - Proceedings of the Genetic and Evolutionary Computation Conference
TI - Exploring the Feature Space of TSP Instances Using Quality Diversity
ER -
TY - CHAP
AU - Rumlich, Dominik
ED - Piske, Thorsten
ED - Steinlen, Anja
ID - 33948
T2 - Cognition and second language acquisition
TI - Exploring the importance of prior knowledge and verbal cognitive abilities for foreign language learning
ER -
TY - JOUR
AB - AbstractAs earlier research results suggest that many mathematics teaching students criticize a missing relevance in their studies, we explore explanations and interrelationships of their relevance assessments. We aim at finding out how one could support the students in attributing relevance to their study programs. A two-fold model for relevance assessments in mathematics teacher education is proposed, consisting of relevance content and relevance reasons. We investigate students' relevance perceptions of mathematical topics and of topics’ complexities, as well as their rating of individual and societal/ vocational relevance reasons, all in relation to their perception of the relevance of their overall program of study. Contrary to earlier research findings, our results suggest that mathematics teaching students already do attribute relevance to many content areas and that a preparation for the teaching profession is not the only reason for them to assign relevance. There also seem to be many students who would attribute relevance if they could develop as individuals and pursue their interests. We suggest that giving students opportunities to set individual priorities in their studies could hence support their relevance assessments. As low relevance assessments seem to be connected to students’ motivational problems, students might profit from motivational support, as well.
AU - Büdenbender-Kuklinski, Christiane
AU - Hochmuth, Reinhard
AU - Liebendörfer, Michael
ID - 37472
JF - International Journal of Research in Undergraduate Mathematics Education
KW - Education
KW - Mathematics (miscellaneous)
SN - 2198-9745
TI - Exploring the Perceived Relevance of University Mathematics Studies by First-Semester Teaching Students
ER -
TY - JOUR
AU - Freff, J
AU - Bröker, L
AU - Leite Dantas, R
AU - Schwarte, K
AU - Bühlmeier, J
AU - Kraft, I
AU - Hinney, A
AU - Buhlmann, U
AU - Arolt, V
AU - Dannlowski, U
AU - Romer, G
AU - Baune, BT
AU - Hebebrand, J
AU - Föcker, M
AU - Alferink, J
ID - 41382
JF - Front Psychiatry
SN - 1664-0640
TI - Expression of CXCR4 on CD4+ T cells predicts body composition parameters in female adolescents with anorexia nervosa.
VL - 13
ER -
TY - CONF
AU - Gräßler, Iris
AU - Wiechel, Dominik
AU - Oleff, Christian
ID - 33889
TI - Extended RFLP for complex technical systems
ER -
TY - JOUR
AU - Gräßler, Iris
AU - Preuß, Daniel
AU - Pottebaum, Jens
ID - 29891
IS - 1
JF - Softwaretechnik-Trends
SN - 0720-8928
TI - Extrahierung von Anforderungen aus natürlich-sprachlichen Lastenheften: Was erschwert eine KI-basierte Extrahierung?
VL - 42
ER -
TY - CHAP
AU - Dröse, Jennifer
AU - Neugebauer, P.
AU - Delucchi Danhier, R.
AU - Mertins, B.
ED - Kleine, P.
ED - Graulich, N.
ED - Kuhn, J.
ED - Schindler, M.
ID - 45373
T2 - Eye-Tracking in der Mathematik- und Naturwissenschaftsdidaktik. Forschung und Praxis
TI - Eye-Tracking Studie zu Textaufgaben in Klasse 5: Bemerken und Interpretieren syntaktischer Strukturen
ER -
TY - JOUR
AU - Scharlau, Ingrid
AU - Schreiber, Christine
ID - 33960
IS - 55
JF - Psychologieunterricht
TI - Facharbeiten schreiben - Informationen für Schülerinnen und Schüler
ER -
TY - CHAP
AB - Die Studieneingangsphase Physik stellt für die Studienanfänger Innen einen komplexen Lernprozess mit vielfältigen Anforderungen auf fachlicher, Metakognitions- und Sozialisations-Ebene dar, der ihre akademische Identitätsbildung beeinflusst und prägt.
Ziel des Projektes Paderborner Studieneingangsphase Physik (PSΦ) ist die evidenzbasierte Gestaltung eines strukturierten Studieneinstiegs und einer in sich kohärent abgestimmten Studieneingangsphase „aus einem Guss“. Die Implementation eines neuen Übungsformats (Präsenzübungen) in den Fachvorlesungen sowie die Unterstützung der Studierenden im Bereich des selbstregulierten Lernens zeigen positive Effekte in einer erhöhten Teilnahmequote sowie Zufriedenheit der Studierenden mit der Veranstaltung, in einem aktiveren Arbeitsverhalten sowie einer höheren Bestehensquote der Klausur. Ein messbar größerer Fachwissenserwerb konnte nicht nachgewiesen werden. Auf Basis der Evidenzen konnten Stellschrauben für die Weiterentwicklung sowie für die Unterstützung der Lehrenden abgeleitet werden.
In dem Beitrag werden die Gelingensbedingungen und Strukturen für eine wirksame Zusammenarbeit von Fachdidaktik und Fachwissenschaft am Beispiel der Überarbeitung der Studieneingangsphase im Rahmen einer community of practice sowie der Wirksamkeit der Implementierung diskutiert.
AU - Bauer, Anna
AU - Woitkowski, David
AU - Reuter, Dirk
AU - Reinhold, Peter
ED - Fahr, Uwe
ED - Kenner, Alessandra
ED - Angenent, Holger
ED - Eßer-Lüghausen, Alexandra
ID - 29789
T2 - Hochschullehre erforschen.
TI - Fachliche und überfachliche Herausforderungen in der Studieneingangsphase Physik
ER -
TY - CONF
AU - Biehler, Rolf
AU - Hoffmann, Max
ED - Isaev, Viktor
ED - Eichler, Andreas
ED - Loose, Frank
ID - 31365
SN - 2197-8751
T2 - Professionsorientierte Fachwissenschaft. Kohärenzstiftende Lerngelegenheiten für das Lehramtsstudium Mathematik
TI - Fachwissen als Grundlage fachdidaktischer Urteilskompetenz – Beispiele für die Herstellung konzeptueller Bezüge zwischen fachwissenschaftlicher und fachdidaktischer Lehre im gymnasialen Lehramtsstudium
ER -
TY - CHAP
AB - The data age has led to curriculum developments promoting the relevance of stochastics in mathematics education. This has resulted in an increased demand for teacher professional development (PD) courses, and thus in a rising number of facilitators for this purpose. Their expertise, however, remains under-researched, even though facilitators are the crucial factor in PD success. Our study aims at revealing how one aspect of facilitator expertise, orientation, is connected to other aspects: views on content goals, perception of possible challenges, and attitude towards teaching resources. The explorations reveal differing orientations and learning goals with identical teaching resources for two facilitators who had also been working as a team for the re-design of the PD course for years.
AU - Nieszporek, Ralf
AU - Griese, Birgit
AU - Biehler, Rolf
ED - Peters, S. A.
ED - Zapata-Cardona, L.
ED - Bonafini, F.
ED - Fan, A.
ID - 35696
T2 - Bridging the Gap: Empowering and Educating Today’s Learners in Statistics. Proceedings of the Eleventh International Conference on Teaching Statistics
TI - Facilitators’ Orientations Towards Learning Goals, Perceived Challenges, and Teaching Resources for a PD Course on Conditional Probability
ER -
TY - CONF
AU - Griese, Birgit
AU - Nieszporek, Ralf
AU - Biehler, Rolf
ID - 39058
TI - Facilitators’ views on content goals, learning obstacles, and teaching resources in reference to conditional probability
ER -
TY - CONF
AB - Consider the practical goal of making a desired action profile played,
when the planner can only change the payoffs, bound by
stringent constraints.
Applications include motivating people
to choose the closest school, the closest subway station, or to coordinate
on a communication protocol or an investment strategy.
Employing subsidies and tolls, we adjust the game so that choosing this predefined action profile
becomes strictly dominant.
Inspired mainly by the work of Monderer and Tennenholtz,
where the promised subsidies do not materialise in the not played
profiles, we provide a fair and individually rational game
adjustment, such that the total outside investments sum up
to zero at any profile, thereby facilitating easy and frequent
usage of our adjustment without bearing costs, even if some
players behave unexpectedly. The resultant action profile itself needs no
adjustment. Importantly, we also prove that our adjustment minimises
the general transfer among all such adjustments, counting the total subsidising and taxation.
AU - Polevoy, Gleb
AU - Dziubiński, Marcin
ED - De Raedt, Luc
ID - 34040
KW - adjustment
KW - strictly dominant
KW - fairness
KW - individually rational
KW - transfer
KW - tax
KW - subsidy
T2 - Proceedings of the Thirty-First International Joint Conference on Artificial Intelligence
TI - Fair, Individually Rational and Cheap Adjustment
ER -
TY - CHAP
AU - Meyer-Hamme, Johannes
AU - Chmiel, Cornelia
AU - Spielhaus, Riem
ED - Georgi, Viola
ED - Lücke, Martin
ED - Meyer-Hamme, Johannes
ED - Spielhaus, Riem
ID - 41131
T2 - Geschichten im Wandel: Neue Perspektiven für die Erinnerungskultur in der Migrationsgesellschaft
TI - Fallbeschreibungen im Vergleich: Ähnlichkeiten, Widersprüche, Spannungsfelder
ER -
TY - CHAP
AB - Familienbildung ist ein Arbeitsfeld, auf das sich zunehmend Aufmerksamkeit richtet. Der Diskurs wird intensiver; von Bildungs-, Familien- und Jugendhilfepolitik wird sie als wichtige Akteurin adressiert. Zugleich steht sie vor großen strukturellen, personellen und inhaltlichen Herausforderungen. Das traditionelle Spannungsverhältnis zwischen Erwachsenenbildung und Kinder- und Jugendhilfe erhält neue Brisanz. Der vorliegende Band entfaltet differenzierte Fragestellungen und eröffnet Perspektiven – mit Schwerpunkten auf Politische Familienbildung und Professionalisierung.
AU - Landhäußer, Sandra
AU - Faas, Stefan
ED - Müller-Giebeler, Ute
ED - Zufacher, Michaela
ID - 36314
KW - Familie | Erwachsenenbildung | Jugendhilfe | Markt | Soziale Arbeit
SN - 978-3-7799-6378-3
T2 - Familienbildung – Praxisbezogene, empirische und theoretische Perspektiven
TI - Familienbildung und Ungleichheit: Sozialraumtheoretische Perspektiven auf das (Nicht)Erreichen von Eltern
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48255
TI - Family Business Library. Presentation at the LTTA of FBL: Motivation, Barriers and Problems while starting a business
ER -
TY - GEN
AU - Schneider, Jennifer Nicole
ID - 48008
TI - Family Business Library. Rural and Regional Libraries as Local family Entrepreneurship Centers. Policy Paper
ER -
TY - JOUR
AB - The family plays an important role in adolescents’ social development. Yet there is little information about the impact of family climate on adolescents’ social adaptation, and the term “family climate” is seldom clearly defined and is usually related to other concepts, such as family systems or family environments. To understand the core of family climate, this study conducted a systematic review to analyze research about family climate associated with adolescents’ social adaptation in community samples. A search of empirical research published over the last 20 years identified 12 relevant studies. The studies revealed that family climate can mainly be described in terms of cohesion, conflict, organization, adaptability, and expressiveness. Family climate was shown to be a good predictor of both problem-solving skills and violence in relationships and exhibited further associations with other aspects of social adaptation. This review revealed a need for more systematic and longitudinal research on family climate in community samples.
AU - Kurock, Ricarda
AU - Gruchel, Nicole
AU - Bonanati, Sabrina
AU - Buhl, Heike M.
ID - 32565
JF - Adolescent Research Review
KW - Family environment
KW - Family system
KW - Adolescents
KW - Social adaptation
KW - Systematic review
SN - 2363-8346
TI - Family Climate and Social Adaptation of Adolescents in Community Samples: A Systematic Review
ER -
TY - CONF
AU - Marschalt, Christoph
AU - Schroder, Dominik
AU - Lange, Sven
AU - Hilleringmann, Ulrich
AU - Hedayat, Christian
AU - Kuhn, Harald
AU - Sievers, Denis
AU - Forstner, Jens
ID - 39377
T2 - 2022 Smart Systems Integration (SSI)
TI - Far-field Calculation from magnetic Huygens Box Data using the Boundary Element Method
ER -
TY - CONF
AB - In this publication a novel method for far-field prediction from magnetic Huygens box data based on the boundary element method (BEM) is presented. Two examples are considered for the validation of this method. The first example represents an electric dipole so that the obtained calculations can be compared to an analytical solution. As a second example, a printed circuit board is considered and the calculated far-field is compared to a fullwave simulation. In both cases, the calculations for different field integral equations are under comparison, and the results indicate that the presented method performs very well with a combined field integral equation, for the specified problem, when only magnetic Huygens box data is given.
AU - Marschalt, Christoph
AU - Schroder, Dominik
AU - Lange, Sven
AU - Hilleringmann, Ulrich
AU - Hedayat, Christian
AU - Kuhn, Harald
AU - Sievers, Denis
AU - Förstner, Jens
ID - 33509
KW - Near-Field Scanning
KW - Huygens Box
KW - Boundary Element Method
KW - Method of Moments
KW - tet_topic_hf
T2 - 2022 Smart Systems Integration (SSI)
TI - Far-field Calculation from magnetic Huygens Box Data using the Boundary Element Method
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31787
T2 - Kunststoffe
TI - Faserstäube beim FVK-Recycling
ER -
TY - JOUR
AU - Hecht, Matthias
AU - Baumgartner, Jörg
AU - Tews, Karina
AU - Çavdar, Serkan
AU - Meschut, Gerson
ID - 30394
JF - Procedia Structural Integrity
KW - General Engineering
KW - Energy Engineering and Power Technology
SN - 2452-3216
TI - Fatigue strength of adhesively butt-bonded hollow cylinders under multiaxial loading with constant and variable amplitudes
VL - 38
ER -
TY - JOUR
AU - Haller, Melanie
AU - Herrmann, Anja
AU - Jun Kim, Tae
AU - Kindinger, Evangelia
AU - Mackert, Nina
AU - Rose, Lotte
AU - Schorb, Friedrich
AU - Tolasch, Eva
AU - Villa, Paula-Irene
ID - 39979
JF - Fat Studies. Ein Glossar, Bielefeld
TI - Fatshion
ER -
TY - CONF
AU - Kostitsyna, Irina
AU - Scheideler, Christian
AU - Warner, Daniel
ED - Ouldridge, Thomas E.
ED - Wickham, Shelley F. J.
ID - 32603
SN - 1868-8969
T2 - 28th International Conference on DNA Computing and Molecular Programming (DNA 28)
TI - Fault-Tolerant Shape Formation in the Amoebot Model
VL - 238
ER -
TY - JOUR
AU - Berger, Thomas
ID - 36005
JF - Systems & Control Letters
TI - Feedback control of the COVID-19 pandemic with guaranteed non-exceeding ICU capacity
VL - 160
ER -
TY - CHAP
AU - Klein, M.
AU - Kundisch, Dennis
AU - Stummer, C.
ED - Corsten, H.
ED - Roth, S.
ID - 21586
T2 - Handbuch Digitalisierung
TI - Feeless Micropayments and Their Impact on Business Models
ER -
TY - JOUR
AB - Abstract
The full Maxwell equations in the unbounded three-dimensional space coupled to the Landau–Lifshitz–Gilbert equation serve as a well-tested model for ferromagnetic materials.
We propose a weak formulation of the coupled system based on the boundary integral formulation of the exterior Maxwell equations.
We show existence and partial uniqueness of a weak solution and propose a new numerical algorithm based on finite elements and boundary elements as spatial discretization with backward Euler and convolution quadrature for the time domain.
This is the first numerical algorithm which is able to deal with the coupled system of Landau–Lifshitz–Gilbert equation and full Maxwell’s equations without any simplifications like quasi-static approximations (e.g. eddy current model) and without restrictions on the shape of the domain (e.g. convexity).
We show well-posedness and convergence of the numerical algorithm under minimal assumptions on the regularity of the solution.
This is particularly important as there are few regularity results available and one generally expects the solution to be non-smooth.
Numerical experiments illustrate and expand on the theoretical results.
AU - Bohn, Jan
AU - Feischl, Michael
AU - Kovács, Balázs
ID - 45956
IS - 1
JF - Computational Methods in Applied Mathematics
KW - Applied Mathematics
KW - Computational Mathematics
KW - Numerical Analysis
SN - 1609-4840
TI - FEM-BEM Coupling for the Maxwell–Landau–Lifshitz–Gilbert Equations via Convolution Quadrature: Weak Form and Numerical Approximation
VL - 23
ER -
TY - GEN
AU - Kostan, Anastassija
ID - 46167
TI - Feministische Neomaterialismen. Die relationale Immanenz posthumanen Handelns
ER -
TY - JOUR
AB - The development of bioresorbable materials for temporary implantation enables progress in medical technology. Iron (Fe)-based degradable materials are biocompatible and exhibit good mechanical properties, but their degradation rate is low. Aside from alloying with Manganese (Mn), the creation of phases with high electrochemical potential such as silver (Ag) phases to cause the anodic dissolution of FeMn is promising. However, to enable residue-free dissolution, the Ag needs to be modified. This concern is addressed, as FeMn modified with a degradable Ag-Calcium-Lanthanum (AgCaLa) alloy is investigated. The electrochemical properties and the degradation behavior are determined via a static immersion test. The local differences in electrochemical potential increase the degradation rate (low pH values), and the formation of gaps around the Ag phases (neutral pH values) demonstrates the benefit of the strategy. Nevertheless, the formation of corrosion-inhibiting layers avoids an increased degradation rate under a neutral pH value. The complete bioresorption of the material is possible since the phases of the degradable AgCaLa alloy dissolve after the FeMn matrix. Cell viability tests reveal biocompatibility, and the antibacterial activity of the degradation supernatant is observed. Thus, FeMn modified with degradable AgCaLa phases is promising as a bioresorbable material if corrosion-inhibiting layers can be diminished.
AU - Krüger, Jan Tobias
AU - Hoyer, Kay-Peter
AU - Huang, Jingyuan
AU - Filor, Viviane
AU - Mateus-Vargas, Rafael Hernan
AU - Oltmanns, Hilke
AU - Meißner, Jessica
AU - Grundmeier, Guido
AU - Schaper, Mirko
ID - 40154
IS - 4
JF - Journal of Functional Biomaterials
KW - Biomedical Engineering
KW - Biomaterials
SN - 2079-4983
TI - FeMn with Phases of a Degradable Ag Alloy for Residue-Free and Adapted Bioresorbability
VL - 13
ER -
TY - JOUR
AB - The development of bioresorbable materials for temporary implantation enables progress in medical technology. Iron (Fe)-based degradable materials are biocompatible and exhibit good mechanical properties, but their degradation rate is low. Aside from alloying with Manganese (Mn), the creation of phases with high electrochemical potential such as silver (Ag) phases to cause the anodic dissolution of FeMn is promising. However, to enable residue-free dissolution, the Ag needs to be modified. This concern is addressed, as FeMn modified with a degradable Ag-Calcium-Lanthanum (AgCaLa) alloy is investigated. The electrochemical properties and the degradation behavior are determined via a static immersion test. The local differences in electrochemical potential increase the degradation rate (low pH values), and the formation of gaps around the Ag phases (neutral pH values) demonstrates the benefit of the strategy. Nevertheless, the formation of corrosion-inhibiting layers avoids an increased degradation rate under a neutral pH value. The complete bioresorption of the material is possible since the phases of the degradable AgCaLa alloy dissolve after the FeMn matrix. Cell viability tests reveal biocompatibility, and the antibacterial activity of the degradation supernatant is observed. Thus, FeMn modified with degradable AgCaLa phases is promising as a bioresorbable material if corrosion-inhibiting layers can be diminished.
AU - Krüger, Jan Tobias
AU - Hoyer, Kay-Peter
AU - Huang, Jingyuan
AU - Filor, Viviane
AU - Mateus-Vargas, Rafael Hernan
AU - Oltmanns, Hilke
AU - Meißner, Jessica
AU - Grundmeier, Guido
AU - Schaper, Mirko
ID - 33723
IS - 4
JF - Journal of Functional Biomaterials
KW - Biomedical Engineering
KW - Biomaterials
SN - 2079-4983
TI - FeMn with Phases of a Degradable Ag Alloy for Residue-Free and Adapted Bioresorbability
VL - 13
ER -
TY - JOUR
AB - The development of bioresorbable materials for temporary implantation enables progress in medical technology. Iron (Fe)-based degradable materials are biocompatible and exhibit good mechanical properties, but their degradation rate is low. Aside from alloying with Manganese (Mn), the creation of phases with high electrochemical potential such as silver (Ag) phases to cause the anodic dissolution of FeMn is promising. However, to enable residue-free dissolution, the Ag needs to be modified. This concern is addressed, as FeMn modified with a degradable Ag-Calcium-Lanthanum (AgCaLa) alloy is investigated. The electrochemical properties and the degradation behavior are determined via a static immersion test. The local differences in electrochemical potential increase the degradation rate (low pH values), and the formation of gaps around the Ag phases (neutral pH values) demonstrates the benefit of the strategy. Nevertheless, the formation of corrosion-inhibiting layers avoids an increased degradation rate under a neutral pH value. The complete bioresorption of the material is possible since the phases of the degradable AgCaLa alloy dissolve after the FeMn matrix. Cell viability tests reveal biocompatibility, and the antibacterial activity of the degradation supernatant is observed. Thus, FeMn modified with degradable AgCaLa phases is promising as a bioresorbable material if corrosion-inhibiting layers can be diminished.
AU - Krüger, Jan Tobias
AU - Hoyer, Kay-Peter
AU - Huang, Jingyuan
AU - Filor, Viviane
AU - Mateus-Vargas, Rafael Hernan
AU - Oltmanns, Hilke
AU - Meißner, Jessica
AU - Grundmeier, Guido
AU - Schaper, Mirko
ID - 41494
IS - 4
JF - Journal of Functional Biomaterials
KW - Biomedical Engineering
KW - Biomaterials
SN - 2079-4983
TI - FeMn with Phases of a Degradable Ag Alloy for Residue-Free and Adapted Bioresorbability
VL - 13
ER -
TY - GEN
AU - Peckhaus, Volker
ID - 37069
T2 - Zentralblatt für Mathematik und ihre Grenzgebiete Zbl 1490.03014
TI - Fermüller, Christian G., "Connecting Sequent Calculi with Lorenzen-Style Dialogue Games", in: Gerhard Heinzmann et al. (eds.), Paul Lorenzen – Mathematician and Logician, Springer: Cham 2021 (Logic, Epistemology, and the Unity of Science; 51) 143–183
ER -
TY - GEN
AB - We consider the renormalized relativistic Nelson model in two spatial
dimensions for a finite number of spinless, relativistic quantum mechanical
matter particles in interaction with a massive scalar quantized radiation
field. We find a Feynman-Kac formula for the corresponding semigroup and
discuss some implications such as ergodicity and weighted $L^p$ to $L^q$
bounds, for external potentials that are Kato decomposable in the suitable
relativistic sense. Furthermore, our analysis entails upper and lower bounds on
the minimal energy for all values of the involved physical parameters when the
Pauli principle for the matter particles is ignored. In the translation
invariant case (no external potential) these bounds permit to compute the
leading asymptotics of the minimal energy in the three regimes where the number
of matter particles goes to infinity, the coupling constant for the
matter-radiation interaction goes to infinity and the boson mass goes to zero.
AU - Hinrichs, Benjamin
AU - Matte, Oliver
ID - 43498
TI - Feynman-Kac formula and asymptotic behavior of the minimal energy for the relativistic Nelson model in two spatial dimensions
ER -
TY - GEN
AU - Hopp, Matthias
AU - Tölle, Lisa
AU - Bünger, J.
AU - Westphal, G.
AU - Rosenkranz, N.
AU - Monsé, C.
ID - 31788
T2 - Kunststoffe international
TI - Fiber Dust Formation during the Recycling of FRP
ER -
TY - CONF
AU - Moritzer, Elmar
AU - Richters, Maximilian
ID - 34731
TI - Filling and Flow Behavior of Novel Wood-Filled Thermoplastic Elastomers
ER -
TY - GEN
AB - We consider the combinatorial bandits problem with semi-bandit feedback under
finite sampling budget constraints, in which the learner can carry out its
action only for a limited number of times specified by an overall budget. The
action is to choose a set of arms, whereupon feedback for each arm in the
chosen set is received. Unlike existing works, we study this problem in a
non-stochastic setting with subset-dependent feedback, i.e., the semi-bandit
feedback received could be generated by an oblivious adversary and also might
depend on the chosen set of arms. In addition, we consider a general feedback
scenario covering both the numerical-based as well as preference-based case and
introduce a sound theoretical framework for this setting guaranteeing sensible
notions of optimal arms, which a learner seeks to find. We suggest a generic
algorithm suitable to cover the full spectrum of conceivable arm elimination
strategies from aggressive to conservative. Theoretical questions about the
sufficient and necessary budget of the algorithm to find the best arm are
answered and complemented by deriving lower bounds for any learning algorithm
for this problem scenario.
AU - Brandt, Jasmin
AU - Haddenhorst, Björn
AU - Bengs, Viktor
AU - Hüllermeier, Eyke
ID - 30724
T2 - arXiv:2202.04487
TI - Finding Optimal Arms in Non-stochastic Combinatorial Bandits with Semi-bandit Feedback and Finite Budget
ER -
TY - JOUR
AU - Raghuwanshi, Mohit
AU - Chugh, Manjusha
AU - Sozzi, Giovanna
AU - Kanevce, Ana
AU - Kühne, Thomas
AU - Mirhosseini, Hossein
AU - Wuerz, Roland
AU - Cojocaru‐Mirédin, Oana
ID - 33689
IS - 37
JF - Advanced Materials
KW - Mechanical Engineering
KW - Mechanics of Materials
KW - General Materials Science
SN - 0935-9648
TI - Fingerprints Indicating Superior Properties of Internal Interfaces in Cu(In,Ga)Se 2 Thin‐Film Solar Cells
VL - 34
ER -
TY - GEN
AU - Fochmann, Martin
AU - Heinemann-Heile, Vanessa
AU - Huber, Hans-Peter
AU - Sureth-Sloane, Caren
ID - 35785
SN - 1556-5068
TI - Firms' Tax Rate Misperception: Measurement, Drivers, and Distortionary Effects
VL - 108
ER -
TY - JOUR
AB - AbstractWhen the COVID-19 pandemic began, many universities switched to fully online teaching. This unexpected switching to online teaching was challenging for both teachers and students, and restrictions that were put in place because of pandemic made this challenge even greater. However, new ways of teaching might also open new opportunities for students’ learning. The research question driving our study was as follows: how do students regulate their learning and specifically their choice of resources and peer learning in university mathematics classes that are fully taught online as offered during the COVID-19 pandemic? We report on a longitudinal, qualitative study in which students recorded a brief audio diary twice a week over one whole semester (14 weeks). We focused on three students who completed 70 interviews in total and finished the semester with varying degrees of success. The results show how the students structured their studying (e.g., the roles that deadlines or synchronous teaching events played). They illustrate the strengths and limitations of digital materials provided by the lecturer and the use of complementary media. Further, the pandemic uncovered the double-edged role of simple, often anonymous exchanges (e.g., via Discord servers), with few binding forces for either side, and the significance of stable learning partnerships for students’ success. Our research highlights aspects that should be focal points when comparing traditional instruction and online instruction during the pandemic from a self-regulatory perspective. Practical implications refer to how these aspects can be combined sensibly in fully online courses, but also in blended learning contexts.
AU - Liebendörfer, Michael
AU - Kempen, Leander
AU - Schukajlow, Stanislaw
ID - 37470
JF - ZDM – Mathematics Education
KW - General Mathematics
KW - Education
SN - 1863-9690
TI - First-year university students' self-regulated learning during the COVID-19 pandemic: a qualitative longitudinal study
ER -
TY - JOUR
AU - van den Bongard, F
AU - Coenen, J
AU - Reinsberger, Claus
ID - 36364
JF - Epilepsy Behav
SN - 1525-5050
TI - Fitness, performance, and cardiac autonomic responses to exercise in people with epilepsy.
VL - 135
ER -