TY - GEN
AB - The theory of visual attention, “TVA”, is an influential and formal theory of attentional selection. It is widely applied in clinical assessment of attention and fundamental attention research. However, most TVA-based research is based on accuracy data from letter report experiments performed in controlled laboratory environments. While such basic approaches to questions regarding attentional selection are undoubtedly useful, recent technological advances have enabled the use of increasingly sophisticated experimental paradigms involving more realistic scenarios. Notably, these studies have in many cases resulted in different estimates of capacity limits than those found in studies using traditional TVA-based assessment. Here we review recent developments in TVA-based assessment of attention that goes beyond the use of letter report experiments and experiments performed in controlled laboratory environments. We show that TVA can be used with other tasks and new stimuli, that TVA-based parameter estimation can be embedded into complex scenarios, such as games that can be used to investigate particular problems regarding visual attention, and how TVA-based simulations of “visual foraging” can elucidate attentional control in more naturalistic tasks. We also discuss how these developments may inform future advances of TVA.
AU - Tünnermann, Jan
AU - Kristjansson, Arni
AU - Petersen, Anders
AU - Schubö, Anna
AU - Scharlau, Ingrid
ID - 31677
T2 - Open Psychology
TI - Advances in the application of a computational Theory of Visual Attention (TVA): Moving towards more naturalistic stimuli and game-like tasks
ER -
TY - CHAP
AU - Reis, Oliver
AU - Jenert, Tobias
AU - Scharlau, Ingrid
ED - Neiske, Iris
ED - Osthushenrich, Judith
ED - Schaper, Niclas
ED - Trier, Ulrike
ED - Vöing, Nerea
ID - 31671
T2 - Hochschule auf Abstand
TI - Kontaktlos lehren?
ER -
TY - CHAP
AU - Reinmann, Gabi
AU - Kreber, Carolin
AU - Bremer, Helmut
AU - Langemeyer, Ines
AU - Scharlau, Ingrid
ED - Bohndick, Carla
ED - Bülow-Schramm, Margret
ED - Paul, Daria
ED - Reinmann, Gabi
ID - 31669
T2 - Hochschullehre im Spannungsfeld zwischen individueller und institutioneller Verantwortung: Tagungsband der 15. Jahrestagung der Gesellschaft für Hochschulforschung
TI - Wer bestimmt die Hochschullehre?
ER -
TY - CHAP
AU - Scharlau, Ingrid
ED - Gather, Katharina
ID - 31668
T2 - Interdisziplinarität als fachdidaktische Herausforderung: Psychologie im Schulfach Erziehungswissenschaft
TI - Jean Piaget als - was?
ER -
TY - GEN
AU - Moritzer, Elmar
AU - Hillemeyer, J.
AU - Kramer, M.
AU - Hopmann, C.
ID - 31707
IS - 71
SN - 0032-1338
T2 - Plastverarbeiter
TI - Direktverschraubung von Duroplasten Eine wirtschaftliche Lösung
ER -
TY - GEN
AU - Moritzer, Elmar
AU - Wortmann, Martin
AU - Viertel, Klaus
AU - Welle, Alexander
AU - Keil, Waldemar
AU - Frese, Natalie
AU - Hachmann, Wiebke
AU - Krieger, Philipp
AU - Brikmann, Johannes
AU - Schmidt, Claudia
AU - Hüsgen, Bruno
ID - 31725
T2 - International Journal of Heat and Mass Transfer
TI - Anomalous bulk diffusion of methylene diphenyl diisocyanate in silicone elastomer
ER -
TY - CONF
AU - Schöppner, Volker
AU - Vogtschmidt, Sascha
ID - 31719
SN - 978-3-96144-147-1
T2 - DVS CONGRESS
TI - Analyse des Erwärm- und Umstellverhaltens beim Schweißen von hochtemperaturbeständigen Kunststoffen
ER -
TY - CONF
AU - Schöppner, Volker
AU - Vogtschmidt, Sascha
ID - 31730
T2 - Technomer
TI - Anwendungsorientiertes Schweißen von hochtemperaturbeständigen Kunststoffen
ER -
TY - CONF
AB - The advantages of Additive Manufacturing (AM) highlight the capability to become an inherent part within the product development process. However, process specific challenges harm its further currency for industrial applications, for instance the high geometrical deviations. Different process factors influence the manufacturing accuracy and lead to large dimensional, form and positional deviations. Published research relative to deviations is difficult to compare, because it is based on several specimens that were manufactured with different processes, materials and machine settings. This fact emphasizes that reliable tolerance values for AM are hard to define in standards. Within this investigation, a universally applicable method was developed to examine geometrical deviations for AM processes. The main aim is the derivation of achievable tolerance values considering important influencing factors. Furthermore, due to the locally varying surface roughness of additively manufactured parts several tactile measurements were compared.
AU - Lieneke, Tobias
AU - Lammers, Stefan
AU - Zimmer, Detmar
ID - 32799
T2 - 32nd Annual International Virtual Solid Freeform Fabrication (SFF) Symposium
TI - Geometrical Deviations In Additive Manufacturing -- Influences On The Manufacturing Accuracy
ER -
TY - JOUR
AU - Li, Jiaao
AU - Ma, Yulai
AU - Shi, Yongtang
AU - Wang, Weifan
AU - Wu, Yezhou
ID - 32810
JF - European Journal of Combinatorics
KW - Discrete Mathematics and Combinatorics
SN - 0195-6698
TI - On 3-flow-critical graphs
VL - 100
ER -
TY - JOUR
AU - Ramaswamy, Arunselvan
AU - Redder, Adrian
AU - Quevedo, Daniel E.
ID - 24140
JF - IEEE Transactions on Automatic Control
TI - Distributed optimization over time-varying networks with stochastic information delays
ER -
TY - GEN
AU - Markewitz, Friedrich
ID - 32762
IS - 1
T2 - Journal für Medienlinguistik
TI - Stilwechsel und ihre Funktionen in Textsorten der Fach- und Wissenschaftskommunikation
VL - 4
ER -
TY - GEN
AU - Markewitz, Friedrich
ID - 32760
T2 - Zeitschrift für Angewandte Linguistik
TI - Diskurs, Wissen, Sprache. Annäherungen an kulturwissenschaftliche Fragen
VL - 74
ER -
TY - CHAP
AU - Nagbøl, Per Rådberg
AU - Müller, Oliver
AU - Krancher, Oliver
ID - 32868
SN - 0302-9743
T2 - The Next Wave of Sociotechnical Design
TI - Designing a Risk Assessment Tool for Artificial Intelligence Systems
ER -
TY - GEN
AU - Triebus, Marcel
AU - Tröster, Thomas
ID - 21726
T2 - 9th NRW Nano Conference - Innovations in Materials and Applications
TI - HyOpt - Optimization-Based Development of Hybrid Materials
ER -
TY - JOUR
AU - Ludwig-Walz, Helena
AU - Nyasordzi, Juliana
AU - Weber, Katharina S.
AU - Buyken, Anette
AU - Kroke, Anja
ID - 33008
IS - 4
JF - Nutrition, Metabolism and Cardiovascular Diseases
KW - Cardiology and Cardiovascular Medicine
KW - Nutrition and Dietetics
KW - Endocrinology
KW - Diabetes and Metabolism
KW - Medicine (miscellaneous)
SN - 0939-4753
TI - Maternal pregnancy weight or gestational weight gain and offspring's blood pressure: A systematic review
VL - 32
ER -
TY - GEN
AU - Jia, Zheng
ID - 33039
TI - Untersuchung der Desorption von Sauerstoff aus primären Alkoholen zur Bestimmung von flüssigkeitsseitigen Stoffübergangskoeffizienten für strukturierten Packungen basierend auf hydrodynamischen Analogien
ER -
TY - GEN
AU - Jian, Youxuan
ID - 33040
TI - Untersuchung der chemischen Absorption von SO2 in wässeriger NaOH zur Ermittlung von gasseitigen Stoffübergangskoeffizienten für strukturierte Packungen basierend auf hydrodynamischen Analogien
ER -
TY - GEN
AU - Sandeep Sakhala, Shashank
ID - 33042
TI - Comparison of different effective mass transfer area correlation in the determination of mass transfer coefficients based on hydrodynamic analogys
ER -
TY - CONF
AU - Kirchhoff, Jonas
ID - 28988
T2 - The 1st Early Career Researchers Workshop Co-Located with ECSS 2021
TI - Providing Decision Makers with Tailored Decision Support Systems
ER -
TY - GEN
AU - Markewitz, Friedrich
ED - Gansel, Christina
ED - Spieß, Constanze
ID - 33014
T2 - WSK Band 6 (Wörterbücher zur Sprach- und Kommunikationswissenschaft): Text- und Diskurslinguistik
TI - Textsortengeschichte
ER -
TY - JOUR
AB - AbstractUsing data from the German Socio-Economic Panel for 1984–2018, we analyze the intergenerational education mobility of immigrants in Germany by identifying the determinants of differences in educational stocks for first- and second-generation immigrants in comparison to individuals without a migration background. Our results show that on average, first-generation immigrants have fewer years of schooling than native-born Germans and have a disproportionate share of lower educational qualifications. This gap is strongly driven by age at immigration, with immigration age and education revealing a nonlinear relationship. While the gap is relatively small among individuals who migrate at a young age, integrating in the school system at secondary school age leads to large disadvantages. Examining the educational mobility of immigrants in Germany, we identify an inter-generational catch-up in education. The gap in education between immigrants and natives is reduced for the second generation. Finally, we find that country of origin differences can account for much of the education gap. While immigrants with an ethnic background closer to the German language and culture show the best education outcomes, immigrants from Turkey, Italy, and other southern European countries and especially the group of war refugees from Syria, Afghanistan, Iraq and other MENA countries, have the lowest educational attainment.
AU - Gries, Thomas
AU - Redlin, Margarete
AU - Zehra, Moonum
ID - 22715
JF - Journal of International Migration and Integration
SN - 1488-3473
TI - Educational Assimilation of First-Generation and Second-Generation Immigrants in Germany
ER -
TY - JOUR
AB - AbstractUsing time series data for the period 1959–2015, our empirical analysis examines the simultaneous effects of the individual components of the global carbon budget on temperature. Specifically, we explore the possible effects of carbon emissions caused by fossil fuel combustion, cement production, land-use change emissions, and carbon sinks (here in terms of land sink and ocean sink) on climate change. The simultaneous inclusion of carbon emissions and carbon sinks allows us to look at the coexistent and opposing effects of the individual components of the carbon budget and thus provides a holistic perspective from which to explore the relationship between the global carbon budget and global warming. The results reveal a significant positive effect of carbon emissions on temperature for both fossil fuels emissions and emissions from land-use change, confirming previous results concerning carbon dioxide and temperature. Further, while ocean sink does not seem to have a significant effect, we identify a temperature-decreasing effect for land sink.
AU - Redlin, Margarete
AU - Gries, Thomas
ID - 23594
JF - Theoretical and Applied Climatology
SN - 0177-798X
TI - Anthropogenic climate change: the impact of the global carbon budget
ER -
TY - CONF
AU - Hanselle, Jonas Manuel
AU - Tornede, Alexander
AU - Wever, Marcel Dominik
AU - Hüllermeier, Eyke
ID - 21198
TI - Algorithm Selection as Superset Learning: Constructing Algorithm Selectors from Imprecise Performance Data
ER -
TY - JOUR
AB - With the rapid progress of technological development, self-efficacy in reference to digital devices (i.e., information and computer technology [ICT] self-efficacy) is an important driver that helps students to deal with technological problems and support their lifelong learning processes. Schools, peers, and home learning environments are important sources for the development of positive self-efficacy. Expanding on previous research, we investigated the associations between different aspects of the digital home learning environment and students’ ICT self-efficacy. The moderation effects of gender were also tested. A total of 651 children answered a questionnaire about different digital home learning environment dimensions and estimated their ICT self-efficacy using an adapted scale—Schwarzer and Jerusalem’s (1999) general self-efficacy scale. Using the structural equation modeling technique, a digital home learning environment containing six different qualities of parental support was investigated. Families’ cultural capital, parents’ attitudes toward the Internet, and shared Internet activities at home contributed positively to ICT self-efficacy. We observed small gender differences, with the moderation effect being nonsignificant. The results help researchers and practitioners to understand how different dimensions of the digital home learning environment support ICT self-efficacy. We will discuss how parents can enhance the home learning environment and how teachers can integrate this knowledge into formal education.
AU - Bonanati, Sabrina
AU - Buhl, Heike M.
ID - 32558
IS - 2
JF - Learning Environments Research
KW - Digital media use
KW - Gender
KW - Home learning environment
KW - ICT self-efcacy
KW - Motivation
KW - Parental involvement
SN - 1387-1579
TI - The digital home learning environment and its relation to children’s ICT self-efficacy
VL - 25
ER -
TY - JOUR
AB - Several methods are available to answer questions regarding similarity and accuracy,
each of which has specific properties and limitations. This study focuses on the
Latent Congruence Model (LCM; Cheung, 2009), because of its capacity to deal
with cross-informant measurement invariance issues. Until now, no cross-national
applications of LCM are present in the literature, perhaps because of the difficulty
to deal with both cross-national and cross-informant measurement issues implied by
those models. This study presents a step-by-step procedure to apply LCM to dyadic
cross-national research designs controlling for both cross-national and cross-informant
measurement invariance. An illustrative example on parent–child support exchanges in
Italy and Germany is provided. Findings help to show the different possible scenarios
of partial invariance, and a discussion related to how to deal with those scenarios is
provided. Future perspectives in the study of parent–child similarity and accuracy in
cross-national research will be discussed.
AU - Tagliabue, Semira
AU - Zambelli, Michela
AU - Sorgente, Angela
AU - Sommer, Sabrina
AU - Hoellger, Christian
AU - Buhl, Heike M.
AU - Lanz, Margherita
ID - 32560
JF - Frontiers in Psychology
KW - latent congruence model
KW - measurement invariance
KW - similarity
KW - accuracy
KW - cross-national
KW - cross-informant
KW - parent-child relationship
KW - support exchanges
SN - 1664-1078
TI - Latent Congruence Model to Investigate Similarity and Accuracy in Family Members' Perception: The Challenge of Cross-National and Cross-Informant Measurement (Non)Invariance
VL - 12
ER -
TY - JOUR
AB - This investigation concentrates on the association of intergenerational value
similarity and adult children’s and parents’subjective well-being, on the linkage
between relationship quality and subjective well-being. Mediation effects of
the relationship quality on the associations between value similarity and
subjective well-being were focused. The sample consisted of 600 adult
German children (53.8% women) and their parents. Dyadic correlations were
constructed to determine the value similarity. In this study, the general value
orientation and the family values were objects of research. We measured the
subjective well-being with the Satisfaction with Life Scale and we used the
Network of Relationships Inventory (NRI) to measure the relationship
quality. Associations between subjective well-being and value similarity, and
between subjective well-being and relationship quality, as well as mediation
effects, were found. All effects depend on gender and perspective.
AU - Hoellger, Christian
AU - Sommer, Sabrina
AU - Buhl, Heike M.
ID - 32561
JF - Journal of Family Issues
KW - adult child–parent dyads
KW - relationship quality
KW - life satisfaction
KW - parent–child relationship
KW - intergenerational stake hypothesis
KW - mediation analyses
SN - 0192-513X
TI - Intergenerational Value Similarity and Subjective Well-Being
ER -
TY - JOUR
AB - Die Querschnittsuntersuchung beschäftigt sich mit der Fragestellung, ob in Zusammenhang mit der familiären Lebenssituation Erwachsener (Elternstatus und Beziehungsstatus) Unterschiede hinsichtlich der Werteähnlichkeit zwischen ihnen und ihren Eltern bestehen. Dabei wurde die Ähnlichkeit der individuellen Grundwerte nach Schwartz (1992) fokussiert. Die Werteähnlichkeit wurde mittels dyadischer Korrelationen bestimmt (Kenny & Winquist, 2001). Die Stichprobe bestand aus N= 1047 Dyaden. Dafür nahmen 600 erwachsene Kinder (53.8 % weiblich) mit ihren Eltern (542 Mütter und 505 Väter) teil. Das Alter der teilnehmenden Kinder lag zwischen 25 und 49 Jahren (M= 33.9, SD = 6.1). Die Ergebnisse dieser Studie zeigten, dass sich die Werteähnlichkeiten in Abhängigkeit von der familiären Lebenssituation unterschieden: Die Elternschaft der erwachsenen Kinder ging mit einer größeren Werteähnlichkeit in der Mutter-Kind-Dyade einher. Ebenso konnte eine größere Werteähnlichkeit zwischen verheirateten Söhnen und deren beiden Elternteilen beobachtet werden, verglichen mit den Söhnen, die Single oder in einer Partnerschaft waren. Die Werteähnlichkeit der Töchter zu ihren Eltern unterschied sich nicht in Abhängigkeit des Beziehungsstatus.
AU - Hoellger, Christian
AU - Sommer, Sabrina
AU - Buhl, Heike M.
ID - 32566
IS - 4
JF - Zeitschrift für Soziologie der Erziehung und Sozialisation
TI - Zusammenhang zwischen der familiären Lebenssituation und Werteähnlichkeiten in der Eltern-Kind-Beziehung im Erwachsenenalter
VL - 41
ER -
TY - CONF
AU - Peeters, Hendrik
AU - Habig, Sebastian
AU - Fechner, Sabine
ED - Habig, Sebastian
ID - 23758
KW - digitale Medien
T2 - Naturwissenschaftlicher Unterricht und Lehrerbildung im Umbruch?
TI - Augmented Reality als Experimentierhilfe bei Beobachtung und Deutung
VL - 41
ER -
TY - JOUR
AB - Genetic correlations suggest a coexisting genetic predisposition to both low leptin levels and risk for anorexia nervosa (AN). To investigate the causality and direction of these associations, we performed bidirectional two-sample Mendelian randomization (MR) analyses using data of the most recent genome-wide association study (GWAS) for AN and both a GWAS and an exome-wide-association-study (EWAS) for leptin levels. Most MR methods with genetic instruments from GWAS showed a causal effect of lower leptin levels on higher risk of AN (e.g. IVW b = −0.923, p = 1.5 × 10−4). Because most patients with AN are female, we additionally performed analyses using leptin GWAS data of females only. Again, there was a significant effect of leptin levels on the risk of AN (e.g. IVW b = −0.826, p = 1.1 × 10−04). MR with genetic instruments from EWAS showed no overall effect of leptin levels on the risk for AN. For the opposite direction, MR revealed no causal effect of AN on leptin levels. If our results are confirmed in extended GWAS data sets, a low endogenous leptin synthesis represents a risk factor for developing AN.
AU - Peters, Triinu
AU - Antel, Jochen
AU - Naaresh, Roaa
AU - Laabs, Björn-Hergen
AU - Föcker, Manuel
AU - Albers, Nicola
AU - Bühlmeier, Judith
AU - Hinney, Anke
AU - Libuda, Lars
AU - Hebebrand, Johannes
ID - 32323
JF - Frontiers in Genetics
KW - Genetics (clinical)
KW - Genetics
KW - Molecular Medicine
SN - 1664-8021
TI - Suggestive Evidence for Causal Effect of Leptin Levels on Risk for Anorexia Nervosa: Results of a Mendelian Randomization Study
VL - 12
ER -
TY - CONF
AU - Hansmeier, Tim
AU - Platzner, Marco
ID - 21813
SN - 978-1-4503-8351-6
T2 - GECCO '21: Proceedings of the Genetic and Evolutionary Computation Conference Companion
TI - An Experimental Comparison of Explore/Exploit Strategies for the Learning Classifier System XCS
ER -
TY - CONF
AB - Waveguide-based methods can be used for the non-destructive determination of acoustic material parameters. One of these methods is based on transmission measurements of cylindrical polymeric specimens. Here, the experimental setup consists of two transducers, which excite and receive the waveguide modes at the faces of the cylinder. The measurement, as well as a forward model, are used to determine material parameters of the polymeric specimen in an inverse approach.
1-3 piezoelectric composites are used as an active element because they can be approximated by a thickness vibration only. This allows an easy identification of Mason model parameters to characterise the transducers’ vibration behaviour.
However, sensitivity analysis shows a high uncertainty in the determination of the mechanical shear parameters due to the uniform excitation. To increase the sensitivity to these shear motions, arbitrary excitations were investigated by means of numerical simulation.
In order to be able to realise the determined optimal excitation, new transducer prototypes were designed. By subdividing the electrodes of the active element, for example, ring-shaped excitation is feasible. Furthermore, it can be shown that modelling these transducers with a one-dimensional Mason model is sufficient.
AU - Dreiling, Dmitrij
AU - Itner, Dominik
AU - Feldmann, Nadine
AU - Scheidemann, Claus
AU - Gravenkamp, Hauke
AU - Henning, Bernd
ID - 25265
T2 - Fortschritte der Akustik - DAGA 2021
TI - Application and modelling of ultrasonic transducers using 1-3 piezoelectric composites with structured electrodes
ER -
TY - CONF
AU - Buckmann, Felix
AU - Kenig, Eugeny
ID - 24229
TI - Experimentelle Untersuchungen zum Kondensationsverhalten von Wasserdampf im Spalt zwischen Kissenplatten
ER -
TY - CONF
AU - Buckmann, Felix
AU - Kenig, Eugeny
ID - 24230
TI - Condensation in pillow-plate heat exchangers: Experiments with pure substances
ER -
TY - THES
AB - Die vollständige Beschreibung fluiddynamischer und akustischer Vorgänge setzt voraus, dass die Eigenschaften des Fluids hinlänglich bekannt sind.Während Fluidkenngrößen, wie etwa die Schallgeschwindigkeit oder die Scherviskosität, für viele Flüssigkeiten über weite Bereiche des thermodynamischen Zustandsraums bekannt sind, existieren für die Volumenviskosität nur eine geringe Anzahl Messdaten.In dieser Arbeit wird daher ein Messverfahren zur selektiven Bestimmung der Volumenviskosität von Flüssigkeiten, basierend auf der Absorption von Ultraschallwellen, entwickelt und realisiert.Schwerpunkte bilden dabei der simulationsgestützte Entwurf von Algorithmen zur Auswertung der Messsignale sowie die Analyse und Weiterentwicklung einer Messanordnung, basierend auf dem Puls-Echo-Verfahren. Neben der Absorption im Fluid treten dabei weitere Effekte (zum Beispiel Beugung oder unvollständige Reflexion) auf, die das akustische Signal schwächen oder anderweitig beeinflussen. Die Entwicklung von Verfahren zur Trennung dieser Effekte von der akustischen Absorption bildet daher einen weiteren Schwerpunkt dieser Arbeit.Abschließend wird die Volumenviskosität aus der gemessenen akustischen Absorption für unterschiedliche Fluide in verschiedenen thermodynamischen Zuständen unter Zuhilfenahme anderer bekannter Fluidkenngrößen bestimmt sowie eine Unsicherheitsbetrachtung durchgeführt.
AU - Claes, Leander
ID - 21502
TI - Messverfahren für die akustische Absorption in reinen Fluiden zur Bestimmung der Volumenviskosität
ER -
TY - GEN
AU - Schulze, Veronika
AU - Schmidt, Stephan
AU - Jurgelucks, Benjamin
AU - Feldmann, Nadine
AU - Claes, Leander
ID - 21233
TI - Optimal experiment design with respect to electrode configurations for a piezoelectric problem
ER -
TY - JOUR
AB - The progress in numerical methods and simulation tools promotes the use of inverse problems in material characterisation problems. A newly developed procedure can be used to identify the behaviour of piezoceramic discs over a wide frequency range using a single specimen via fitting simulated and measured impedances by optimising the underlying material parameters. Since there is no generally accepted damping model for piezoelectric ceramics, several mechanical damping models are examined for the material identification. Three models have been chosen and their ability to replicate the measured impedances is evaluated. On the one hand, the common Rayleigh model is considered as a reference. On the other hand, a Zener model and a model using complex constants are extended to model the transversely isotropic material. As the Rayleigh model is only valid for a limited frequency range, it fails to model the broadband behaviour of the material. The model using complex constants leads to the best fit over a wide frequency range while at the same time only adding three additional parameters for modelling damping. Thus, damping can be assumed approximately frequency-independent in piezoceramics.
AU - Feldmann, Nadine
AU - Schulze, Veronika
AU - Claes, Leander
AU - Jurgelucks, Benjamin
AU - Meihost, Lars
AU - Walther, Andrea
AU - Henning, Bernd
ID - 21341
IS - 5
JF - tm - Technisches Messen
SN - 2196-7113
TI - Modelling damping in piezoceramics: A comparative study
VL - 88
ER -
TY - CONF
AU - Claes, Leander
AU - Feldmann, Nadine
AU - Jurgelucks, Benjamin
AU - Schulze, Veronika
AU - Schmidt, Stephan
AU - Walther, Andrea
AU - Henning, Bernd
ID - 22012
TI - Optimised Multi-Electrode Topology for Piezoelectric Material Characterisation
ER -
TY - GEN
AU - Schulze, Veronika
AU - Schmidt, Stephan
AU - Jurgelucks, Benjamin
AU - Feldmann, Nadine
AU - Claes, Leander
ID - 23462
TI - Piezoelectric BC Modeling for Electrode Shapes with OED
ER -
TY - JOUR
AB - The kinetic Brownian motion on the sphere bundle of a Riemannian manifold M is a stochastic process that models a random perturbation of the geodesic flow. If M is an orientable compact constantly curved surface, we show that in the limit of infinitely large perturbation the L2-spectrum of the infinitesimal generator of a time-rescaled version of the process converges to the Laplace spectrum of the base manifold.
AU - Kolb, Martin
AU - Weich, Tobias
AU - Wolf, Lasse
ID - 33278
IS - 4
JF - Annales Henri Poincaré
TI - Spectral Asymptotics for Kinetic Brownian Motion on Surfaces of Constant Curvature
VL - 23
ER -
TY - CHAP
AU - Herzig, Bardo
AU - Engemann, Mario
ED - Maurer, C.
ED - Rincke, K.
ED - Hemmer, M.
ID - 33303
T2 - Fachliche Bildung und digitale Transformation - Fachdidaktische Forschung und Diskurse. Fachtagung der Gesellschaft für Fachdidaktik 2020
TI - Lehrerkooperation und Digitalisierung - Gestaltung digital-kooperativer Arbeitsbeziehungen von Lehrkräften und ReferendarInnen am Beispiel des Schulfachs Pädagogik
ER -
TY - CONF
AB - Modular solid-state transformers (SSTs) are a promising technology in converting power from a 10kV three-phase medium voltage to a lower DC-voltage in the range of 100…400V to provide pure DC power to applications such as electrolyzers for hydrogen generation, data centers with a DC power distribution and DC micro grids. Modular SSTs which can be interpreted as modular multilevel converters with an isolated DC-DC output stage per module, are designed with redundant modules to increase reliability. Usually, each of the three arms operates independently, and therefore, only a fixed number of faulty modules can be compensated in each arm, even if all modules are operational in the remaining two arms. With the proposed zero-sequence voltage injection, up to 100% more faulty modules can be compensated in an arm by employing the same hardware. In addition, module power imbalances are nearly eliminated by utilizing a fundamental frequency zero-sequence voltage. A dominant 3rd harmonic zero-sequence voltage injection in combination with the 5th, 7th and several higher order harmonics with adaptive (small) amplitudes minimize the required arm voltages at steady-state. For nominal operation or symmetrical faults, the proposed technique is equivalent to the well known Min-Max voltage injection, which already reduces the peak arm voltage by 13.4% compared to a constant star point potential. A statistical analysis proves, that the expected number of tolerable faulty modules of the 1MW SST increases by 12% without the need for additional hardware.
AU - Unruh, Roland
AU - Lange, Jarren
AU - Schafmeister, Frank
AU - Böcker, Joachim
ID - 29938
KW - Solid-State Transformer
KW - Zero sequence voltage
KW - Fault handling strategy
KW - Power balance control technique
KW - Three-phase system
SN - 978-9-0758-1537-5
T2 - 23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)
TI - Adaptive Zero-Sequence Voltage Injection for Modular Solid-State Transformer to Compensate for Asymmetrical Fault Conditions
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Bär, Jochen
ID - 32698
T2 - Historische Text- und Diskurssemantik. Jahrbuch für Germanistische Sprachgeschichte
TI - Das historische Schulprogramm als wissenschaftssystemische Textsorte: Reflexionen zu seiner para- und peritextuellen Ausgestaltung
VL - 11
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Braun, Christian
ID - 32695
T2 - Sprache des Todes – Sprache des Sterbens
TI - Aber das Getto ist grausam, es hält seine Opfer fest in seinen faulenden Zähnen“ - Zum sprachlichen Umgang mit der drohenden Vernichtung im Diskursraum des Gettos Litzmannstadt
ER -
TY - CHAP
AU - Markewitz, Friedrich
ED - Ächtler, Norman
ID - 32707
T2 - Schulprogramme Höherer Lehranstalten. Interdisziplinäre Perspektiven auf eine wiederentdeckte bildungs- und kulturwissenschaftliche Quellengattung
TI - Zum programmatischen Potenzial des Schulprogramms
ER -
TY - GEN
AU - Weich, Tobias
AU - Budde, Julia
ID - 32099
T2 - arXiv:2103.02968v1
TI - Wave Front Sets of Nilpotent Lie Group Representations
ER -
TY - GEN
AU - Pawelczyk, Sebastian
AU - Jesinghausen, Steffen
AU - Schmid, Hans-Joachim
ID - 24202
TI - Charakterisierung des Fließverhaltens von Frischbeton – Entwicklung eines adaptiven Rheometers (ACCR) und Einfluss von Maßnahmen zur Sedimentationsprävention
ER -
TY - JOUR
AU - Öhlschläger, Claudia
ID - 32896
JF - ZfdPh, Heft 2/2021
TI - Wiederholung. Zu einem temporalen und ästhetischen Muster passiv erfahrener Zeit in feuilletonistischen Städtebildern Siegfried Kracauers.
VL - 140
ER -
TY - CHAP
AB - Aufgrund der Einschränkungen im Rahmen der COVID-19-Pandemie sind viele Geflüchtete von Zugängen zur Aneignung der deutschen Sprache und damit von gesellschaftlicher und bildungsbezogener Teilhabe abgeschnitten. Die vorliegende Untersuchung erkundet, inwiefern das bislang präsenzbasierte Projekt Sprachbegleitung Geflüchteter pandemiebedingt auch digital vermittelte Zugänge zu Interaktions- und Sprachlerngelegenheiten schaffen und so die Auswirkungen der gesellschaftlichen und bildungsbezogenen Isolation für Geflüchtete in Gemeinschaftsunterkünften abmildern kann. Aufbauend auf einer Fragebogenuntersuchung werden dazu die Erfahrungen und Sichtweisen drei afghanischer bzw. iranischer Geflüchteter mittels episodischer Interviews elizitiert und im Rahmen einer qualitativen Inhaltsanalyse ausgewertet. Damit wird explorativ erforscht, welche Grenzen und Chancen digitaler Zugänge zu Interaktion und kommunikativer Praxis sich skizzieren lassen und welche Konsequenzen sich für die Gestaltung von Sprachlern- und Partizipationsmöglichkeiten für Geflüchtete ableiten lassen.
AU - Can, Magdalena
AU - Müller, Mareike
AU - Niederhaus, Constanze
ED - Gamper, Jana
ED - Hövelbrinks, Britta
ED - Schlauch, Julia
ID - 32055
SN - 9783823384946
T2 - Lockdown, Homeschooling und Social Distancing – der Zweitspracherwerb unter akut veränderten Bedingungen der COVID-19-Pandemie
TI - Digitale Zugänge zu kommunikativer Praxis schaffen: Eine explorative Interviewstudie im Projekt Sprachbegleitung Geflüchteter
ER -
TY - JOUR
AU - Goller, Michael
AU - Caruso, Carina
AU - Harteis, Christian
ID - 26689
IS - 2
JF - International Journal of Research on Vocational and Educational Training
TI - Digitalisation in agriculture: Knowledge and learning requirements of German diary farmers
VL - 8
ER -