@inbook{40940, author = {{Duschner, Paul}}, booktitle = {{Koloniale Welten in Westfalen}}, editor = {{Bischoff, Sebastian and Frey, Barbara and Neuwöhner, Andreas}}, pages = {{271--289}}, title = {{{Spuren des Kolonialismus in der Airport Art: Vier Beispiele aus Westfalen}}}, year = {{2021}}, } @inproceedings{34472, author = {{Kullmer, Gunter and Weiß, Deborah and Schramm, Britta}}, location = {{Bremen}}, pages = {{107--116}}, title = {{{Entwicklung einer Methode zur differenzierten Messung des Wachstums der Rissenden von Innenrissen mit der Elektropotentialmethode}}}, doi = {{10.48447/BR-2021-013}}, volume = {{DVM-Bericht 253}}, year = {{2021}}, } @article{26095, abstract = {{Luftreiniger werden derzeit häufig als mögliches Hilfsmittel zur Minimierung des Infektionsrisikos im Rahmen der COVID-19-Pandemie diskutiert. Dabei taucht oft die Frage auf, ob Luftreiniger grundsätzlich in der Lage sind, Viren oder virenbeladene Tröpfchen abzuscheiden. Ziel dieses Artikels ist es, die wesentlichen Grundlagen der Wirkungsweise von Luftreinigern und Filtern zu beschreiben, Methoden zur Messung der Reinigungswirkung im Größenbereich von Viren und virenbeladenen Tröpfchen aufzuzeigen sowie typische Szenarien zum Betrieb von Luftreinigern in einem mathematischen Modell zu erfassen. Darauf basierend können die Möglichkeiten und Grenzen von Luftreinigern für reale Anwendungsfälle besser eingeschätzt werden.}}, author = {{Schumacher, Stefan and Asbach, Christof and Schmid, Hans-Joachim}}, issn = {{0949-8036}}, journal = {{Gefahrstoffe}}, pages = {{16--28}}, title = {{{Effektivität von Luftreinigern zur Reduzierung des COVID-19-Infektionsrisikos/ Efficacy of air purifiers in reducing the risk of COVID-19 infections}}}, doi = {{10.37544/0949-8036-2021-01-02-18}}, year = {{2021}}, } @inbook{41870, author = {{Seng, Eva- Maria and Göttmann, Frank}}, booktitle = {{Innovation in der Bauwirtschaft – Innovation in the building industry. Wesersandstein vom 16. bis 19. Jahrhundert – Weser Sandstone form the 16th to the 19th Century}}, editor = {{Seng, Eva-Maria and Göttmann, Frank}}, pages = {{19--80}}, title = {{{Einleitung – Introduction}}}, year = {{2021}}, } @inbook{41869, author = {{Seng, Eva- Maria}}, booktitle = {{Weitergabe und Wiedergabe. Dimensionen des Authentischen im Umgang mit immateriellem Kulturerbe}}, editor = {{Saupe, Achim and Samida, Stefanie}}, pages = {{35--52}}, title = {{{Authentizität und kulturelles Erbe – Genese, Aufnahme und Diskussion des Authentizitätsaspektes in die Welterbekonvention}}}, year = {{2021}}, } @book{41871, editor = {{Seng, Eva- Maria and Göttmann, Frank}}, title = {{{Innovation in der Bauwirtschaft – Innovation in the building industry. Wesersandstein vom 16. bis 19. Jahrhundert – Weser Sandstone form the 16th to the 19th Century}}}, year = {{2021}}, } @inbook{41868, author = {{Seng, Eva- Maria}}, booktitle = {{Protestantische Impulse. Prägende Gestalten in Deutschland nach 1945}}, editor = {{Hermle, Siegfried and Schneider, Thomas Martin}}, pages = {{13--20}}, title = {{{Otto Bartning, Spektakuläre Kirchenbaulösungen versus Einfachbauten}}}, year = {{2021}}, } @book{41872, author = {{Seng, Eva- Maria}}, title = {{{Erkundungen in die Kunstgeschichte, Kirchenbau, Städtebau, Utopie, Sammelband von bislang meist unpublizierten Aufsätzen}}}, year = {{2021}}, } @phdthesis{41908, author = {{Schafran, Tommy}}, publisher = {{Shaker Verlag}}, title = {{{Ein Beitrag zur Entwicklung einer additiv gefertigten Unterschenkelorthese unter Berücksichtigung biomechanischer Aspekte des Charcot-Fußes}}}, year = {{2021}}, } @inproceedings{21803, author = {{Tews, Karina and Aubel, Tobias and Teutenberg, Dominik and Meschut, Gerson and Duffe, Tobias and Kullmer, Gunter}}, booktitle = {{DECHEMA, Gesellschaft für Chemische Technik und Biotechnologie e.V. (Ed.), 21. Kolloquium: Gemeinsame Forschung in der Klebtechnik}}, title = {{{Methodenentwicklung zur numerischen Lebensdauerprognose von hyperelastischen Klebverbindungen infolge zyklischer Beanspruchung mittels bruchmechanischer Ansätze}}}, year = {{2021}}, } @article{41909, abstract = {{The continuous development of medical methods in recent decades has achieved measurable improvement. The interdisciplinary cooperation of engineers and physicians is a forward-looking component of this development. However, this cooperation also results in new interfaces on the communication and software level, which must be defined by implementing a systematic workflow. In this paper, the step-by-step implementation of engineering methods into the surgical workflow is shown. The focus is on the basic requirements and the necessary exchange of information. Additively manufactured models for preoperative elucidation of the patient are used as a psychological added value to increase the transparency of the surgical procedure. In addition, the models serve to train young surgeons and provide the opportunity to plan advanced surgical techniques.}}, author = {{Risse, Lena and Kullmer, Gunter}}, issn = {{2059-4755}}, journal = {{Journal of 3D Printing in Medicine}}, keywords = {{General Medicine}}, number = {{2}}, pages = {{111--121}}, publisher = {{Future Medicine Ltd}}, title = {{{Application of engineering methods in the planning process of surgical treatments}}}, doi = {{10.2217/3dp-2020-0020}}, volume = {{5}}, year = {{2021}}, } @inproceedings{41910, author = {{Duffe, Tobias and Schramm, Britta and Kullmer, Gunter}}, pages = {{157--166}}, publisher = {{Deutscher Verband für Materialforschung und –prüfung e.V.}}, title = {{{Experimentelle Ermittlung von Rissfortschrittskurven für hyperelastische Klebstoffe}}}, doi = {{10.48447/BR-2021-018}}, volume = {{DVM-Bericht 253}}, year = {{2021}}, } @inproceedings{29499, author = {{Duffe, Tobias and Kullmer, Gunter and Tews, Karina and Aubel, Tobias and Meschut, Gerson}}, booktitle = {{51. DVM-Tagung, Arbeitskreis Bruchmechanik und Bauteilsicherung}}, title = {{{Bruchmechanische Lebensdauervorhersage für hyperelastische Klebverbindungen}}}, year = {{2021}}, } @inproceedings{29899, abstract = {{LLC resonant converters are typically unsuitable to be applied for wide voltage-transfer ratio applications. With a full-bridge inverter, however, they can be operated in a variety of different modulations. Most notably, by permanently turning on one MOSFET and turning off the other MOSFET of the same bridge leg, the LLC can be operated in half-bridge configuration reducing the gain by a factor of two. The resonant capacitor is hereby charged to an average voltage of half the input voltage. In this modulation, however, the switch that is permanently turned on is stressed by the complete resonant current while exhibiting no switching losses. This paper proves that the frequency-doubler modulation can better balance the losses among all MOSFETs and should be the preferred mode of operation favored over the conventional half-bridge modulation. This paper analyzes the beneficial loss distribution, proposes an on-the-fly morphing modulation and discusses potential operating strategies to further reduce the junction temperature. Furthermore, it is shown that this modulation can also be altered to achieve the asymmetrical LLC operation. Experimental measurement results show that the modulation results in a substantial decrease of the maximum MOSFET temperature and shows that the converter can be smoothly transitioned during operation from full-bridge modulation to the frequency-doubler half-bridge operation and back.}}, author = {{Rehlaender, Philipp and Unruh, Roland and Hankeln, Lars and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{23rd European Conference on Power Electronics and Applications (EPE'21 ECCE Europe)}}, isbn = {{978-9-0758-1537-5}}, keywords = {{Resonant converter, High frequency power converter, Switched-mode power supply, Converter control, Control methods for electrical systems}}, location = {{Ghent, Belgium}}, publisher = {{IEEE}}, title = {{{Frequency-Doubler Modulation for Reduced Junction Temperatures for LLC Resonant Converters Operated in Half-Bridge Configuration}}}, doi = {{10.23919/EPE21ECCEEurope50061.2021.9570674}}, year = {{2021}}, } @phdthesis{42013, author = {{Stolbchenko, Mykhailo }}, isbn = {{978-3-8440-7971-5}}, publisher = {{Shaker Verlag}}, title = {{{Zwei-Rollen-Gießwalzen und thermomechanische Behandlung von dünnen Bändern aus der Aluminiumlegierung EN AW-6082}}}, year = {{2021}}, } @unpublished{32236, abstract = {{The interaction between quantum light and matter is being intensively studied for systems that are enclosed in high-$Q$ cavities which strongly enhance the light-matter coupling. However, for many applications, cavities with lower $Q$-factors are preferred due to the increased spectral width of the cavity mode. Here, we investigate the interaction between quantum light and matter represented by a $\Lambda$-type three-level system in lossy cavities, assuming that cavity losses are the dominant loss mechanism. We demonstrate that cavity losses lead to non-trivial steady states of the electronic occupations that can be controlled by the loss rate and the initial statistics of the quantum fields. The mechanism of formation of such steady states can be understood on the basis of the equations of motion. Analytical expressions for steady states and their numerical simulations are presented and discussed.}}, author = {{Rose, H. and Tikhonova, O. V. and Meier, T. and Sharapova, P. }}, booktitle = {{arXiv:2109.00842}}, title = {{{Steady states of $Λ$-type three-level systems excited by quantum light in lossy cavities}}}, year = {{2021}}, } @article{41940, author = {{Lang, Susanne and Topalović, Elvira}}, journal = {{In: Praxis Deutschunterricht}}, pages = {{30--35}}, title = {{{Komplexe Wörter richtig schreiben. Wortanalyse als Rechtschreibstrategie.}}}, volume = {{4}}, year = {{2021}}, } @article{41939, author = {{Noack, Christina and Topalović, Elvira}}, journal = {{ In: Praxis Deutschunterricht}}, pages = {{4--10}}, title = {{{Rechtschreibstrategien und Sprachstrukturen.}}}, volume = {{4}}, year = {{2021}}, } @inproceedings{41890, author = {{Gyger, S and Zichi, J and Schweickert, L and Elshaari, A.W and Steinhauer, S and Covre da Silva, S.F and Rastelli, A and Zwiller, V and Jöns, Klaus D. and Errando-Herranz, C}}, pages = {{1408}}, title = {{{Reconfigurable quantum photonics with on-chip detectors}}}, volume = {{12}}, year = {{2021}}, } @inproceedings{41891, author = {{Klein, J and Sigl, L and Gyger, S and Barthelmi, K and Florian, M and Rey, S and Taniguchi, T and Watanabe, K and Jahnke, F and Kastl, C and Zwiller, V and Jöns, Klaus D. and Müller, K and Wurstbauer, U and Finley, J.F and Holleitner, A.W}}, number = {{1}}, pages = {{669--677}}, title = {{{ Engineering the Luminescence and Generation of Individual Defect Emitters in Atomically Thin MoS2}}}, volume = {{8}}, year = {{2021}}, }