TY - CONF AB - Abstract. Climate change, rare resources and industrial transformation processes lead to a rising demand of multi-complex lightweight forming parts, especially in aerospace and automotive sectors. In these industries, flow forming is often used to produce cylindrical forming parts by reducing the wall thickness of tubular semifinished parts, e.g. for the production of hydraulic cylinders or gear shafts. The complexity and functionality of flow forming workpieces could be significantly increased by locally graded microstructure and geometry structures. This enables customized complex hardness distributions at wear surfaces or magnetic QR codes for a unique, tamper-proof product identification. The production of those complex, 2D (axial and angular) graded forming parts currently depicts a great challenge for the process and requires new solutions and strategies. Hence, this paper proposes a novel control strategy that includes online measurements from an absolute encoder to determine the angular workpiece position. Workpieces of AISI 304L stainless steel with 2D-graded structures are successfully manufactured using this new strategy and analyzed regarding the possible accuracy and resolution of the gradation. At this point, a dependency of the gradations on the sensor and actuator dynamics, accuracy and geometry could be noted. It is further evaluated how the control strategy could be extended by an observer-based closed-loop property control approach to enhance the accuracy of the suggested strategy. AU - Kersting, Lukas AU - Arian, Bahman AU - Rozo Vasquez, Julian AU - Trächtler, Ansgar AU - Homberg, Werner AU - Walther, Frank ID - 44315 SN - 2474-395X T2 - Materials Research Proceedings TI - Control strategy for angular gradations by means of the flow forming process ER - TY - CHAP AU - Newberry, Melissa AU - Rizvi, Meher AU - van der Want, Anna AU - Jonas-Ahrend, Gabriela AU - Kaldi, Stavroula AU - Kihara, Toshiyuki AU - Franco, Juan Vicente Ortiz AU - Ratnam, Tara ID - 45652 SN - 1479-3687 T2 - Advances in Research on Teaching TI - Teacher Educators' Experiences and Expressions of Emotion During the Pandemic: International Perspectives ER - TY - JOUR AU - Rozo Vasquez, Julian AU - Arian, Bahman AU - Kersting, Lukas AU - Walther, Frank AU - Homberg, Werner AU - Trächtler, Ansgar ID - 44318 JF - Metals TI - Detection of phase transformation during plastic deformation of metastable austenitic steel AISI 304L by means of X-ray diffraction pattern analysis ER - TY - GEN AU - Thorenz, Kristin AU - Berwinkel, Andre AU - Weigelt, Matthias ED - Schlesinger, Torsten ED - Grimminger-Seidensticker, Elke ED - Ferrauti, Alexander ED - Kellmann, Michael ED - Thiel, Christian ED - Kullik, Lisa ID - 47418 SN - 978-3-88020-714-1 T2 - Leistung steuern. Gesundheit stärken. Entwicklung fördern. TI - The affective response following autogenic training VL - 301 ER - TY - CHAP AU - Biehler, Rolf AU - Engel, Joachim AU - Frischemeier, Daniel ED - Bruder, Regina ED - Büchter, A. ED - Gasteiger, H. ED - Schmidt-Thieme, B. ED - Weigand, HG. ID - 47416 SN - 9783662666036 T2 - Handbuch der Mathematikdidaktik TI - Stochastik: Leitidee Daten und Zufall ER - TY - JOUR AU - Methfessel, Annette AU - Janzen, Thomas ID - 47423 IS - 2 JF - Englisch betrifft uns TI - Living the Dream? Relating to the living conditions of Hispanic migrants in California through the short story Inside Out ER - TY - CHAP AU - Rezat, Sara ED - von Heynitz, Martina ID - 47450 T2 - Die Konstruktion stärken: Ein Handlungsfeld der Deutschdidaktik neu betrachtet TI - Konstruktionen in der prozedurenorientierten Schreibdidaktik. ER - TY - JOUR AU - Rezat, Sara AU - Scholle, Oliver ID - 47451 IS - (1) JF - Medien im Deutschunterricht TI - AnnoPy – Ein digitales Tool zur Förderung von Textkompetenzen. VL - 5 ER - TY - CONF AB - In this paper we present a new system architecture for software-defined radio / radar with optical signal distribution. The proposed architecture allows to transmit the optical carrier and an arbitrary IQ signal on the same fiber from a base station to wireless transmitters using a single laser. Furthermore, we can reuse parts, and under special conditions, also the complete optical output of the base station for the IQ return path from the wireless receiver frontends to the base station. Avoiding multiple lasers and fibers for the distribution of the carrier and arbitrary signal from the base station to the frontend, and avoiding the laser diode for the IQ return path from receiver frontends to the base station reduces the hardware effort significantly. Finally, the system architecture allows to integrate all components of the optoelectronic wireless frontend in a single chip using silicon photonics technology. AU - Kruse, Stephan AU - Kneuper, Pascal AU - Schwabe, Tobias AU - Meinecke, Marc-Michael AU - Kurz, Heiko G. AU - Scheytt, J. Christoph ID - 42800 TI - Distributed System Architecture for Software-Defined Radio / Radar with Optical Signal Distribution ER - TY - JOUR AU - Kruse, Stephan AU - Greitens, Jan C. AU - Schwabe, Tobias AU - Kneuper, Pascal AU - Kurz, Heiko G. AU - Scheytt, J. Christoph ID - 47126 JF - IEEE Microwave and Wireless Technology Letters TI - A Narrowband Four-Quadrant Electro-Optical Mixer for Microwave Photonics ER - TY - CONF AB -

The study investigates two different ways of guiding the addressee of an explanation - an explainee, through action demonstration: contrastive and non-contrastive. Their effect was tested on attention to specific action elements (goal) as well as on event memory. In an eye-tracking experiment, participants were shown different motion videos that were either contrastive or non-contrastive with respect to the segments of movement presentation. Given that everyday action demonstration is often multimodal, the stimuli were created with re- spect to their visual and verbal presentation. For visual presentation, a video combined two movements in a contrastive (e.g., Up-motion following a Down-motion) or non-contrastive way (e.g., two Up-motions following each other). For verbal presentation, each video was combined with a sequence of instruction descriptions in the form of negative (i.e., contrastive) or assertive (i.e., non-contrastive) guidance. It was found that a) attention to the event goal increased for this condition in the later time window, and b) participants’ recall of the event was facilitated when a visually contrastive motion was combined with a verbal contrast.

AU - Singh, Amit AU - Rohlfing, Katharina J. ID - 46067 KW - Attention KW - negation KW - contrastive guidance KW - eye-movements KW - action understanding KW - event representation T2 - Proceedings of the Annual Meeting of the Cognitive Science Society 45 (45) TI - Contrastiveness in the context of action demonstration: an eye-tracking study on its effects on action perception and action recall ER - TY - CONF AB - This paper experimentally investigates and interprets the e®ects of noise and non- linearity in a silicon photonic optical test structure. For the analysis di®erent optoelectronic phase noise measurement techniques are used. Our tests focuses on the performance of integrated opti- cal test structures using femtosecond pulses in the 1550nm spectral range. A primary objective is to understand the behaviour of silicon photonic waveguides that can be further employed in the implementation of an optoelectronic phase-locked loop (OEPLL) in silicon photonics technology. A comparison of our results, as well as a discussion on the di®erent optoelectronic phase noise measurement techniques are presented. Our ¯ndings provide insights that can be leveraged to optimize the design and performance of ultra-low phase noise on-chip OEPLL systems locking to mode-locked laser (MLL) signals. In the future such systems can be essential for advanced communication and sensing applications. AU - Surendranath Shroff, Vijayalakshmi AU - Kress, Christian AU - Bahmanian, Meysam AU - Scheytt, J. Christoph ID - 47521 T2 - 2023 PhotonIcs & Electromagnetics Research Symposium (PIERS), TI - Analysis of Phase Noise in Waveguide-integrated Optical Test Structures in Silicon Photonics ER - TY - JOUR AU - Kürpick, Christian AU - Rasor, Anja AU - Scholtysik, Michel AU - Kühn, Arno AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 47420 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - An Integrative View of the Transformations towards Sustainability and Digitalization: The Case for a Dual Transformation VL - 119 ER - TY - JOUR AU - Zhai, Xiaokun AU - Ma, Xuekai AU - Gao, Ying AU - Xing, Chunzi AU - Gao, Meini AU - Dai, Haitao AU - Wang, Xiao AU - Pan, Anlian AU - Schumacher, Stefan AU - Gao, Tingge ID - 40274 IS - 13 JF - Physical Review Letters TI - Electrically controlling vortices in a neutral exciton polariton condensate at room temperature VL - 131 ER - TY - GEN AU - Sehlmeyer, Birte AU - Kampmann, Rebecca AU - Scheidemann, Claus AU - Hemsel, Tobias AU - Getzlaff, Mathias ID - 47234 T2 - Frühjahrstagung 2023, Sektion Kondensierte Materie (SKM) TI - Burst Mode of Ultrasonic Resonant Oscillations for Stimulation and Destruction of Tumor Cells ER - TY - GEN AU - Kampmann, Rebecca AU - Sehlmeyer, Birte AU - Scheidemann, Claus AU - Hemsel, Tobias AU - Getzlaff, Mathias ID - 47235 T2 - Frühjahrstagung 2023, Sektion Kondensierte Marterie (SKM) TI - Burst Mode Characteristics of an Ultrasonic Transducer for Treatment of Cancer Cells ER - TY - GEN AB - In planar microcavities, the transverse-electric and transverse-magnetic (TE-TM) mode splitting of cavity photons arises due to their different penetration into the Bragg mirrors and can result in optical spin-orbit coupling (SOC). In this work, we find that in a liquid crystal (LC) microcavity filled with perovskite microplates, the pronounced TE-TM splitting gives rise to a strong SOC that leads to the spatial instability of microcavity polariton condensates under single-shot excitation. Spatially varying hole burning and mode competition occurs between polarization components leading to different condensate profiles from shot to shot. The single-shot polariton condensates become stable when the SOC vanishes as the TE and TM modes are spectrally well separated from each other, which can be achieved by application of an electric field to our LC microcavity with electrically tunable anisotropy. Our findings are well reproduced and traced back to their physical origin by our detailed numerical simulations. With the electrical manipulation our work reveals how the shot-to-shot spatial instability of spatial polariton profiles can be engineered in anisotropic microcavities at room temperature, which will benefit the development of stable polariton-based optoeletronic and light-emitting devices. AU - Gao, Ying AU - Ma, Xuekai AU - Zhai, Xiaokun AU - Xing, Chunzi AU - Gao, Meini AU - Dai, Haitao AU - Wu, Hao AU - Liu, Tong AU - Ren, Yuan AU - Wang, Xiao AU - Pan, Anlian AU - Hu, Wei AU - Schumacher, Stefan AU - Gao, Tingge ID - 47532 T2 - arXiv:2305.01368 TI - Single-shot spatial instability and electric control of polariton condensates at room temperature ER - TY - GEN AB - The control and active manipulation of spin-orbit coupling (SOC) in photonic systems is fundamental in the development of modern spin optics and topological photonic devices. Here, we demonstrate the control of an artificial Rashba-Dresselhaus (RD) SOC mediated by photochemical reactions in a microcavity filled with an organic single-crystal of photochromic phase-change character. Splitting of the circular polarization components of the optical modes induced by photonic RD SOC is observed experimentally in momentum space. By applying an ultraviolet light beam, we control the spatial molecular orientation through a photochemical reaction and with that we control the energies of the photonic modes. This way we realize a reversible conversion of spin-splitting of the optical modes with different energies, leading to an optically controlled switching between circularly and linearly polarized emission from our device. Our strategy of in situ and reversible engineering of SOC induced by a light field provides a promising approach to actively design and manipulate synthetic gauge fields towards future on-chip integration in photonics and topological photonic devices. AU - Liang, Qian AU - Ma, Xuekai AU - Ren, Jiahuan AU - Long, Teng AU - Gu, Chunling AU - An, Cunbin AU - Fu, Hongbing AU - Schumacher, Stefan AU - Liao, Qing ID - 47533 T2 - arXiv:2309.07652 TI - Photochemical reaction enabling the engineering of photonic spin-orbit coupling in organic-crystal optical microcavities ER - TY - GEN AB - Topological states have been widely investigated in different types of systems and lattices. In the present work, we report on topological edge states in double-wave (DW) chains, which can be described by a generalized Aubry-Andr\'e-Harper (AAH) model. For the specific system of a driven-dissipative exciton polariton system we show that in such potential chains, different types of edge states can form. For resonant optical excitation, we further find that the optical nonlinearity leads to a multistability of different edge states. This includes topologically protected edge states evolved directly from individual linear eigenstates as well as additional edge states that originate from nonlinearity-induced localization of bulk states. Extending the system into two dimensions (2D) by stacking horizontal DW chains in the vertical direction, we also create 2D multi-wave lattices. In such 2D lattices multiple Su-Schrieffer-Heeger (SSH) chains appear along the vertical direction. The combination of DW chains in the horizontal and SSH chains in the vertical direction then results in the formation of higher-order topological insulator corner states. AU - Schneider, Tobias AU - Gao, Wenlong AU - Zentgraf, Thomas AU - Schumacher, Stefan AU - Ma, Xuekai ID - 47531 T2 - arXiv:2303.12593 TI - Topological edge and corner states in coupled wave lattices in nonlinear polariton condensates ER - TY - GEN AB - Exceptional points (EPs) with their intriguing spectral topology have attracted considerable attention in a broad range of physical systems, with potential sensing applications driving much of the present research in this field. Here we theoretically demonstrate the realization of EPs in a system with significant nonlinearity, a non-equilibrium exciton-polariton condensate. With the possibility to control loss and gain and nonlinearity by optical means, this system allows for a comprehensive analysis of the interplay of nonlinearities (Kerr-type and saturable gain) and non-Hermiticity. Not only do we find that EPs can be intentionally shifted in parameter space by the saturable gain, we also observe intriguing rotations and intersections of Riemann surfaces, and find nonlinearity-enhanced sensing capabilities. Our results are quite general in nature and illustrate the potential of tailoring spectral topology and related phenomena in non-Hermitian systems by nonlinearity. AU - Wingenbach, Jan AU - Schumacher, Stefan AU - Ma, Xuekai ID - 47529 T2 - arXiv:2305.04855 TI - Tweaking Spectral Topology and Exceptional Points by Nonlinearity in Non-Hermitian Polariton Systems ER - TY - JOUR AB - AbstractEfforts to enhance sustainability in all areas of life are increasing worldwide. In the field of manufacturing technology, a wide variety of approaches are being used to improve both resource and energy efficiency. Efficiency as well as sustainability can be improved by creating a circular economy or through energy-efficient recycling processes. As part of the interdisciplinary research group "Light—Efficient—Mobile" investigations on the energy-efficient friction-induced recycling process have been carried out at the department of Forming and Machining Technology at Paderborn University. E.g. using the friction-induced recycling process, different formless solid aluminum materials can be direct recycled into semi-finished products in an energy-efficient manner. The results of investigations with regard to the influence of the geometrical shape and filling rate of the aluminum particles to be recycled as well as the rotational speed of the continuously rotating wheel are explained in this paper. In addition to the recycling of aluminum chips, aluminum particles like powders from the field of additive manufacturing are processed. Based on these results, the future potentials of solid-state recycling processes and their contribution to the circular economy are discussed. The main focus here is on future interdisciplinary research projects to achieve circularity in the manufacturing of user-individual semi-finished products as well as the possibility to selectively adjust the product properties with the continuous recycling process. AU - Borgert, Thomas AU - Milaege, Dennis AU - Schweizer, Swetlana AU - Homberg, Werner AU - Schaper, Mirko AU - Tröster, Thomas ID - 47536 IS - 6 JF - International Journal of Material Forming KW - General Materials Science SN - 1960-6206 TI - Potentials of a friction-induced recycling process to improve resource and energy efficiency in manufacturing technology VL - 16 ER - TY - CHAP AU - Fuchs, Christian ED - Güney, Selma ED - Hille, Lina ED - Pfeiffer, Juliane ED - Porak, Laura ED - Theine, Hendrik ID - 47548 T2 - Eigentum, Medien, Öffentlichkeit: Verhandlungen des Netzwerks Kritische Kommunikationswissenschaft TI - Zur Kritik der Politischen Ökonomie des Digitalen Kapitalismus: Die Aktualität von Manfred Knoches Beitrag zur Kritik der Politischen Ökonomie der Medien und der Kommunikation ER - TY - JOUR AB - We live in times of deep crisis. General crises of society often are accompanied by ideological struggles. Given this context, it is important that social theory reinvigorates the analysis of ideology. For doing so, it makes sense to engage with classical theories of ideology. This paper contributes to this task. It asks: How are the economic and the non-economic related? What is ideology? This article deals with the base/superstructure problem and the problem of ideology via an engagement with selected aspects of Stuart Hall’s, Georg Lukács’s and Raymond Williams’s works. The commonality of Hall’s, Lukács’s and Williams’s thoughts that makes a joint engagement with their works feasible is that they all three dealt with aspects of culture from a critical theory perspective and are in one way or another representatives of Cultural Marxism. While Lukács’s works and Cultural Studies are often presented as conflicting approaches, this paper shows that concerning the question of how the economic and the non-economic are related and how we can think of ideology, the approaches of Lukács, Williams, and Hall complement each other, which allows critical theories of culture to draw on all three approaches and to combine elements from them in a synergistic manner. There are parallels between Williams’, Hall’s, and Lukács’s solutions to the base/superstructure problem. Williams argues that the economic exerts pressures on and sets limits to the non-economic. Hall writes that the economic determines the non-economic in the first instance. Lukács argues that the economic circumscribes subjectivity and the non-economic. AU - Fuchs, Christian ID - 46448 JF - The Communication Review. KW - base and superstructure KW - culture KW - economy and culture KW - Georg Lukács KW - ideology KW - Raymond Williams KW - Stuart Hall TI - The Problems of Base/Superstructure and Ideology in the Works of Stuart Hall, Georg Lukács, and Raymond Williams ER - TY - CHAP AU - Zentgraf, Thomas ED - Panoiu, Nicoae C. ID - 47543 SN - 978-0-323-90614-2 T2 - Fundamentals and Applications of Nonlinear Nanophotonics TI - Symmetry governed nonlinear selection rules in nanophotonics ER - TY - JOUR AU - Niemann, Valerie A. AU - Huck, Marten AU - Steinrück, Hans-Georg AU - Toney, Michael F. AU - Tarpeh, William A. AU - Bone, Sharon E. ID - 45826 JF - ACS ES&T Water KW - Water Science and Technology KW - Environmental Chemistry KW - Chemistry (miscellaneous) KW - Chemical Engineering (miscellaneous) SN - 2690-0637 TI - X-ray Absorption Spectroscopy Reveals Mechanisms of Calcium and Silicon Fouling on Reverse Osmosis Membranes Used in Wastewater Reclamation VL - 3 ER - TY - BOOK ED - Kalenborn, Axel ED - Fazal-Baqaie, Masud ED - Linssen, Oliver ED - Volland, Alexander ED - Yigitbas, Enes ED - Engstler, Martin ED - Bertram, Martin ID - 47547 TI - Projektmanagement Und Vorgehensmodelle 2023 - Nachhaltige IT-Projekte VL - Vol. P340 ER - TY - JOUR AU - Krämer, Felix AU - Paradies, Jan AU - Fernández, Israel AU - Breher, Frank ID - 47589 JF - Nature Chemistry KW - General Chemical Engineering KW - General Chemistry SN - 1755-4330 TI - A crystalline aluminium–carbon-based ambiphile capable of activation and catalytic transfer of ammonia in non-aqueous media ER - TY - CONF AU - Jonas-Ahrend, Gabriela AU - Fraser-Abder, Pamela AU - Kapanadze, Marika AU - Joubran, Fadeel AU - Mazzolini, Alexander ID - 47590 TI - Lessons learned from a global review study of physics textbook evaluation and its implications for teaching and learning in the classroom ER - TY - CONF AU - Jonas-Ahrend, Gabriela AU - Kapanadze, Marika AU - Mazzolini, Alexander AU - Joubran, Fadeel ID - 47591 TI - Physiklehrbücher im Fokus der fachdidaktischen Forschung - ein internationaler Literatur-Review ER - TY - GEN AU - Jonas-Ahrend, Gabriela AU - Kapanadze, Marika AU - Mazzolini, Alexander AU - Joubran, Fadeel ID - 47602 TI - Ergebnisse einer Reviewstudie zur Evaluation von Physiklehrbüchern ER - TY - JOUR AU - Knorr, Lukas AU - Schlosser, Florian AU - Meschede, Henning ID - 45866 IS - 3 JF - Journal of Sustainable Development of Energy, Water and Environment Systems KW - Energy Engineering and Power Technology KW - Water Science and Technology KW - Environmental Science (miscellaneous) KW - Renewable Energy KW - Sustainability and the Environment SN - 1848-9257 TI - Assessment of Energy Efficiency and Flexibility Measures in Electrified Process Heat Generation Based on Simulations in the Animal Feed Industry VL - 11 ER - TY - GEN AB - In this proceeding we consider a translation invariant Nelson type model in two spatial dimensions modeling a scalar relativistic particle in interaction with a massive radiation field. As is well-known, the corresponding Hamiltonian can be defined with the help of an energy renormalization. First, we review a Feynman-Kac formula for the semigroup generated by this Hamiltonian proven by the authors in a recent preprint (where several matter particles and exterior potentials are treated as well). After that, we employ a few technical key relations and estimates obtained in our preprint to present an otherwise self-contained derivation of new Feynman-Kac formulas for the fiber Hamiltonians attached to fixed total momenta of the translation invariant system. We conclude by inferring an alternative derivation of the Feynman-Kac formula for the full translation invariant Hamiltonian. AU - Hinrichs, Benjamin AU - Matte, Oliver ID - 47534 T2 - arXiv:2309.09005 TI - Feynman-Kac formula for fiber Hamiltonians in the relativistic Nelson model in two spatial dimensions ER - TY - JOUR AU - Pinsch, Jan Christian ID - 47541 IS - 145 JF - tà katoptrizómena – Magazin für Kunst | Kultur | Theologie | Ästhetik TI - Angst, Glaube und Liebe in M. Night Shyamalans „The Village“ ER - TY - BOOK AU - Pinsch, Jan Christian AU - Arnhold, Oliver AU - Lerke, Stephanie ID - 47542 TI - Religiöse Feindbilder. Bausteine für die Sekundarstufe II ER - TY - JOUR AB - We present a fully integrated radio frequency identifications transponder chip operating at 5.8 GHz, which is compatible with the class-1 generation-2 of the Electronic Product Code protocol (EPC-C1 G2). The tag chip including the analog front-end and the digital baseband processor, are designed in the sub-threshold regime (0.5 V) with a total supply current of less than 50 μA. As a power scavenging unit, a single-stage differential-drive rectifier structure is designed and fabricated with standard threshold voltage (SVT) MOS elements in a commercial 65-nm CMOS process, to provide 0.8 V of rectified voltage. Measurements performed on the fabricated single-stage structure show a maximum power conversion efficiency of 69.6% for a 22 kΩ load and a sensitivity of -12.5 dBm, which corresponds to more than 1 m of reading range. The power conversion efficiency at this range is about 64%. AU - Haddadian, Sanaz AU - Scheytt, J. Christoph AU - von Bögel, Gerd AU - Grenter, Thorben ID - 47009 JF - IEEE Journal of Radio Frequency Identification TI - A Sub-Threshold Microwave RFID Tag Chip, Compatible With RFID MIMO Reader Technology ER - TY - BOOK AU - Althoff, Sebastian ID - 47617 SN - 9783839466902 TI - Digitale Desökonomie: Unproduktivität, Trägheit und Exzess im digitalen Milieu ER - TY - BOOK ED - Bartz, Christina ED - Ruchatz, Jens ED - Wattolik, Eva ID - 47676 SN - 978-3-8376-6479-9 TI - Food - Media - Senses ER - TY - JOUR AB - The introduction of Systems Engineering is an approach for dealing with the increasing complexity of products and their associated product development. Several introduction strategies are available in the literature; nevertheless, the introduction of Systems Engineering into practice still poses a great challenge to companies. Many companies have already gained experience in the introduction of Systems Engineering. Therefore, as part of the SE4OWL research project, the need to conduct a study including expert interviews and to collect the experiences of experts was identified. A total of 78 hypotheses were identified from 13 expert interviews concerning the lessons learned. Using exclusion criteria, 52 hypotheses were validated in a subsequent quantitative survey with 112 participants. Of these 52 hypotheses, 40 could be confirmed based on the survey results. Only four hypotheses were rejected, and eight could neither be confirmed nor rejected. Through this research, guidance is provided to companies to leverage best practices for the introduction of their own Systems Engineering and to avoid the poor practices of other companies. AU - Wilke, Daria AU - Grothe, Robin AU - Bretz, Lukas AU - Anacker, Harald AU - Dumitrescu, Roman ID - 47800 IS - 3 JF - Systems KW - Information Systems and Management KW - Computer Networks and Communications KW - Modeling and Simulation KW - Control and Systems Engineering KW - Software SN - 2079-8954 TI - Lessons Learned from the Introduction of Systems Engineering VL - 11 ER - TY - JOUR AB - Abstract In diesem Beitrag wird die soziotechnische Gestaltung einer Intelligenten Personaleinsatzplanung beim Unternehmen Miele & Cie. KG im Rahmen des Leuchtturmprojekts „InTime“ im Kompetenzzentrum Arbeitswelt.Plus beschrieben. Hierzu werden die Durchführung und Auswertung einer Interviewreihe sowie das daraus erarbeitete Soll-Konzept vorgestellt. AU - Gabriel, Stefan AU - Bentler, Dominik AU - Bansmann, Michael AU - Andrew Latos, Benedikt AU - Kühn, Arno AU - Dumitrescu, Roman ID - 47798 IS - 1-2 JF - Zeitschrift für wirtschaftlichen Fabrikbetrieb KW - Management Science and Operations Research KW - Strategy and Management KW - General Engineering SN - 2511-0896 TI - Soziotechnische Gestaltung einer intelligenten Personaleinsatzplanung VL - 118 ER - TY - CHAP AU - Menzefricke, Jörn Steffen AU - Gabriel, Stefan AU - Gundlach, Thomas AU - Hobscheidt, Daniela AU - Kürpick, Christian AU - Schnasse, Felix AU - Scholtysik, Michel AU - Seif, Heiko AU - Koldewey, Christian AU - Dumitrescu, Roman ID - 47797 SN - 2569-2348 T2 - Schwerpunkt Business Model Innovation TI - Soziotechnisches Risikomanagement als Erfolgsfaktor für die Digitale Transformation ER - TY - CONF AU - Bentler, Dominik AU - Gabriel, Stefan AU - Latos, Benedikt A. AU - Dietrich, Oliver AU - Dumitrescu, Roman AU - Maier, Günter W. ID - 47799 T2 - GfA-Frühjahrskongress 2023 TI - Partizipatives Gestaltungsvorgehen bei der Einführung künstlicher Intelligenz in produzierenden Unternehmen ER - TY - CONF AU - Janzen, Thomas ID - 47795 T2 - 30. DGFF Kongress 2023 TI - Show, don't tell - Rollenspielbasierte Simulationsprüfungen für zukünftige Englischlehrkräfte (Poster) ER - TY - JOUR AU - Weller, Julian AU - Roesmann, Daniel AU - Eggert, Sönke AU - von Enzberg, Sebastian AU - Gräßler, Iris AU - Dumitrescu, Roman ID - 47827 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - Identification and prediction of standard times in machining for precision steel tubes through the usage of data analytics VL - 119 ER - TY - JOUR AU - Machon, Fabian AU - Gabriel, Stefan AU - Latos, Benedikt AU - Holtkötter, Christoph AU - Lütkehoff, Ben AU - Asmar, Laban AU - Kühn, Arno AU - Dumitrescu, Roman ID - 47822 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - Design of individual simulation games in manufacturing companies for game-based learning VL - 119 ER - TY - JOUR AU - Brock, Jonathan AU - von Enzberg, Sebastian AU - Kühn, Arno AU - Dumitrescu, Roman ID - 47824 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - Process Mining Data Canvas: A method to identify data and process knowledge for data collection and preparation in process mining projects VL - 119 ER - TY - JOUR AU - Wilke, Daria AU - Schierbaum, Anja AU - Anacker, Harald AU - Dumitrescu, Roman ID - 47826 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - Targeted-oriented selection of engineering methods VL - 119 ER - TY - CHAP AU - Hellweg, Talea AU - Schneider, Martin ED - Gräßler, Iris ED - Maier, Günter W. ED - Steffen, Eckhard ED - Roesmann, Daniel ID - 47675 SN - 9783031261039 T2 - The Digital Twin of Humans. An Interdisciplinary Concept of Digital Working Environments in Industry 4.0 TI - Which Types of Workers Are Adversely Affected by Digital Transformation? Insights from the Task-Based Approach ER - TY - CHAP AU - Hemsen, Paul AU - Reimann, Mareike AU - Schneider, Martin ED - Gräßler, Iris ED - Maier, Günter W. ED - Steffen, Eckhard ED - Roesmann, Daniel ID - 47677 SN - 9783031261039 T2 - The Digital Twin of Humans. An Interdisciplinary Concept of Digital Working Environments in Industry 4.0 TI - Digital Twins in Flexible Online Work: Crowdworkers on German-Language Platforms ER - TY - THES AU - König, Jürgen ID - 47833 TI - On the Membership and Correctness Problem for State Serializability and Value Opacity ER - TY - THES AU - Hansmeier, Tim ID - 47837 TI - XCS for Self-awareness in Autonomous Computing Systems ER - TY - CHAP AU - Pilz, Sarah AU - Hellweg, Talea AU - Harteis, Christian AU - Rückert, Ulrich AU - Schneider, Martin ED - Gräßler, Iris ED - Maier, Günter W. ED - Steffen, Eckhard ED - Roesmann, Daniel ID - 47671 SN - 9783031261039 T2 - The Digital Twin of Humans. An Interdisciplinary Concept of Digital Working Environments in Industry 4.0 TI - Who Will Own Our Global Digital Twin: The Power of Genetic and Biographic Information to Shape Our Lives ER - TY - CONF AB - Estimating the ground state energy of a local Hamiltonian is a central problem in quantum chemistry. In order to further investigate its complexity and the potential of quantum algorithms for quantum chemistry, Gharibian and Le Gall (STOC 2022) recently introduced the guided local Hamiltonian problem (GLH), which is a variant of the local Hamiltonian problem where an approximation of a ground state is given as an additional input. Gharibian and Le Gall showed quantum advantage (more precisely, BQP-completeness) for GLH with $6$-local Hamiltonians when the guiding vector has overlap (inverse-polynomially) close to 1/2 with a ground state. In this paper, we optimally improve both the locality and the overlap parameters: we show that this quantum advantage (BQP-completeness) persists even with 2-local Hamiltonians, and even when the guiding vector has overlap (inverse-polynomially) close to 1 with a ground state. Moreover, we show that the quantum advantage also holds for 2-local physically motivated Hamiltonians on a 2D square lattice. This makes a further step towards establishing practical quantum advantage in quantum chemistry. AU - Gharibian, Sevag AU - Hayakawa, Ryu AU - Gall, François Le AU - Morimae, Tomoyuki ID - 32407 IS - 32 T2 - Proceedings of the 50th EATCS International Colloquium on Automata, Languages and Programming (ICALP) TI - Improved Hardness Results for the Guided Local Hamiltonian Problem VL - 261 ER - TY - JOUR AU - Mildorf, Jarmila ID - 44214 IS - 4-5 JF - Zagadnienia Rodzajów Literackich SN - 0084-4446 TI - Dialogical Functions of You-Narration in Auto/Biography: Anne Harich’s “Wenn ich das gewußt hätte…”: Erinnerungen an Wolfgang Harich (2007) VL - 65 ER - TY - CHAP AU - Hatavara, Mari AU - Hyvärinen, Matti AU - Mildorf, Jarmila ED - Ensslin, Astrid ED - Round, Julia ED - Thomas, Bronwen ID - 47847 SN - 9780367635695 T2 - The Routledge Companion to Literary Media TI - The Literary in Narrating Dramatic Life Experiences ER - TY - CHAP AU - Mildorf, Jarmila ED - Ensslin, Astrid ED - Round, Julia ED - Thomas, Bronwen ID - 47848 SN - 9780367635695 T2 - The Routledge Companion to Literary Media TI - Poeticity and Parody: The Literary Interview on Radio and Podcast ER - TY - JOUR AU - Tenberge, Claudia ID - 47868 JF - Grundschule Sachunterricht TI - Ungeliebte Tiere in der Stadt VL - 98 ER - TY - JOUR AB - Der Beitrag betrachtet die digitale häusliche Lernumwelt von Kindern unter besonderer Berücksichtigung der Differenzkategorien Herkunft und Sprache und erarbeitet Zusammenhänge zwischen dem Migrationshintergrund, der Familiensprache, einer internetbezogenen Eltern-Kind-Interaktion sowie einer unterhaltungs- und schulbezogenen Nutzung des Internets von Kindern. Empirische Grundlagen sind standardisierte Eltern- und Kinderbefragungen sowie ethnografisch orientierte Untersuchungen in Familien. Die quantitativen Analysen zeigen, dass Kinder, deren Hauptverkehrssprache in der Familie nicht Deutsch ist, häufiger gemeinsam mit ihren Eltern das Internet nutzten. Vertiefend liessen in der qualitativen Untersuchung diejenigen Kinder häufigere und komplexere Internetnutzungsformen für schulische Zwecke erkennen, die einen Migrationshintergrund aufweisen und hauptsächlich in ihrer Herkunftssprache (nicht Deutsch) innerhalb der Familie sprechen. Insbesondere in Familien, die selten in der Häuslichkeit Deutsch sprechen, hat sich die (gemeinsame) Internetrecherche als Mittel zur Kompensation von Sprachbarrieren erwiesen. Fehlende elterliche Unterstützungsmöglichkeiten aufgrund von sprachlichen Verständnisproblemen können insofern durch kindliche, elterliche oder gemeinsame Rechercheprozesse ausgeglichen werden. AU - Richter, Lea AU - Gruchel, Nicole AU - Buhl, Heike M. AU - Kamin, Anna-Maria ID - 47887 JF - MedienPädagogik: Zeitschrift für Theorie und Praxis der Medienbildung SN - 1424-3636 TI - Herkunftsbedingte und sprachliche Einflüsse bei der häuslichen Internetnutzung von Kindern VL - 20 ER - TY - BOOK ED - ija Grigorjevaite, Kadri Mettis, Katarina Stekic, Kristof Van de Keere, Marjana Brkic, Michael Lenke, Mikko-Jussi Laakso, Paulius Lukas Tamošiūnas, Sofia Karlsson, Sven Hüsing, Jurga Turčinavičienė, Violeta Šlekienė, Mart Laanpere, and Vidita Urboniene ID - 47885 TI - A PRACTICAL HANDBOOK ON EFFECTIVE DEVELOPMENT AND IMPLEMENTATION OF STEAM TEACHING AT SCHOOL ER - TY - CHAP AU - Schröer, Franz AU - Tenberge, Claudia ED - Wooff, D. , McLain, M. ID - 47886 T2 - Bloomsbury Handbook of Technology Education. TI - Inclusion and the Development of Technology Education - Thinking towards an inclusive curriculum for technology education in German primary schools ER - TY - JOUR AB - Ferroelectric domain boundaries are quasi-two-dimensional functional interfaces with high prospects for nanoelectronic applications. Despite their reduced dimensionality, they can exhibit complex non-Ising polarization configurations and unexpected physical properties. Here, the impact of the three-dimensional (3D) curvature on the polarization profile of nominally uncharged 180° domain walls in LiNbO3 is studied using second-harmonic generation microscopy and 3D polarimetry analysis. Correlations between the domain-wall curvature and the variation of its internal polarization unfold in the form of modulations of the Néel-like character, which we attribute to the flexoelectric effect. While the Néel-like character originates mainly from the tilting of the domain wall, the internal polarization adjusts its orientation due to the synergetic upshot of dipolar and monopolar bound charges and their variation with the 3D curvature. Our results show that curved interfaces in solid crystals may offer a rich playground for tailoring nanoscale polar states. AU - Acevedo-Salas, Ulises AU - Croes, Boris AU - Zhang, Yide AU - Cregut, Olivier AU - Dorkenoo, Kokou Dodzi AU - Kirbus, Benjamin AU - Singh, Ekta AU - Beccard, Henrik AU - Rüsing, Michael AU - Eng, Lukas M. AU - Hertel, Riccardo AU - Eliseev, Eugene A. AU - Morozovska, Anna N. AU - Cherifi-Hertel, Salia ID - 47992 IS - 3 JF - Nano Letters KW - Mechanical Engineering KW - Condensed Matter Physics KW - General Materials Science KW - General Chemistry KW - Bioengineering SN - 1530-6984 TI - Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls VL - 23 ER - TY - JOUR AB - Structural strain severely impacts material properties, such as the linear and nonlinear optical response. Moreover, strain plays a key role, e.g., in the physics of ferroelectrics and, in particular, of their domain walls. μ-Raman spectroscopy is a well-suited technique for the investigation of such strain effects as it allows to measure the lattice dynamics locally. However, quantifying and reconstructing strain fields from Raman maps requires knowledge on the strain dependence of phonon frequencies. In this paper, we have analyzed both theoretically and experimentally the phonon frequencies in the widely used ferroelectrics lithium niobate and lithium tantalate as a function of uniaxial strain via density functional theory and μ-Raman spectroscopy. Overall, we find a good agreement between our ab initio models and the experimental data performed with a stress cell. The majority of phonons show an increase in frequency under compressive strain, whereas the opposite is observed for tensile strains. Moreover, for E-type phonons, we observe the lifting of degeneracy already at moderate strain fields (i.e., at ±0.2%) along the x and y directions. This paper, hence, allows for the systematic analysis of three-dimensional strains in modern-type bulk and thin-film devices assembled from lithium niobate and tantalate. AU - Singh, Ekta AU - Pionteck, Mike N. AU - Reitzig, Sven AU - Lange, Michael AU - Rüsing, Michael AU - Eng, Lukas M. AU - Sanna, Simone ID - 47993 IS - 2 JF - Physical Review Materials KW - Physics and Astronomy (miscellaneous) KW - General Materials Science SN - 2475-9953 TI - Vibrational properties of LiNbO3 and LiTaO3 under uniaxial stress VL - 7 ER - TY - JOUR AB - Coherent nonlinear optical μ-spectroscopy is a frequently used tool in modern material science as it is sensitive to many different local observables, which comprise, among others, crystal symmetry and vibrational properties. The richness in information, however, may come with challenges in data interpretation, as one has to disentangle the many different effects like multiple reflections, phase jumps at interfaces, or the influence of the Guoy-phase. In order to facilitate interpretation, the work presented here proposes an easy-to-use semi-analytical modeling Ansatz, which bases upon known analytical solutions using Gaussian beams. Specifically, we apply this Ansatz to compute nonlinear optical responses of (thin film) optical materials. We try to conserve the meaning of intuitive parameters like the Gouy-phase and the nonlinear coherent interaction length. In particular, the concept of coherence length is extended, which is a must when using focal beams. The model is subsequently applied to exemplary cases of second- and third-harmonic generation. We observe a very good agreement with experimental data, and furthermore, despite the constraints and limits of the analytical Ansatz, our model performs similarly well as when using more rigorous simulations. However, it outperforms the latter in terms of computational power, requiring more than three orders less computational time and less performant computer systems. AU - Spychala, Kai J. AU - Amber, Zeeshan H. AU - Eng, Lukas M. AU - Rüsing, Michael ID - 47994 IS - 12 JF - Journal of Applied Physics KW - General Physics and Astronomy SN - 0021-8979 TI - Modeling nonlinear optical interactions of focused beams in bulk crystals and thin films: A phenomenological approach VL - 133 ER - TY - JOUR AU - Liu, Ping AU - Schumann, Nils AU - Abele, Fabian AU - Ren, Fazheng AU - Hanke, Marcel AU - Xin, Yang AU - Hartmann, Andreas AU - Schlierf, Michael AU - Keller, Adrian AU - Lin, Weilin AU - Zhang, Yixin ID - 48013 JF - ACS Applied Nano Materials KW - General Materials Science SN - 2574-0970 TI - Thermophoretic Analysis of Biomolecules across the Nanoscales in Self-Assembled Polymeric Matrices ER - TY - CHAP AU - Schuster, Britt-Marie AU - Haaf, Susanne ED - Haaf, Susanne ED - Schuster, Britt-Marie ID - 48025 T2 - Historische Textmuster im Wandel. Neue Wege zu Ihrer Erschließung TI - Fünf Thesen zur Untersuchung des Textsortenwandels VL - 331 ER - TY - CHAP AU - Schuster, Britt-Marie AU - Thielert, Frauke AU - Haaf, Susanne ED - Haaf, Susanne ED - Schuster, Britt-Marie ID - 48029 T2 - Historische Textmuster im Wandel. Neue Wege zu ihrer Erschließung TI - Fragen stellen in Pressetextsorten ER - TY - CHAP AU - Schuster, Britt-Marie ED - Markewitz, Friedrich ED - Scholl, Stefan ED - Schubert, Katrin ED - Wilk, Nicole M. ID - 46561 KW - Kommunikationsgeschichte SN - 9783847116127 T2 - Kommunikative Praktiken im Nationalsozialismus TI - »Das dankst du deinem Führer« – Adressierungspraktiken in der Widerstandskommunikation gegen den Nationalsozialismus VL - 3 ER - TY - CHAP AU - Biehler, Rolf AU - Frischemeier, Daniel AU - Gould, Ronald AU - Pfannkuch, Maxine ED - Pepin, Birgit ED - Gueudet, Ghislaine ED - Choppin, Jeffrey ID - 48042 T2 - Handbook of Digital Resources in Mathematics Education TI - Impacts of Digitalization on Content and Goals of Statistics Education ER - TY - BOOK ED - Schuster, Britt-Marie ED - Markewitz, Friedrich ED - Wilk, Nicole M. ID - 48043 TI - Widerstandshandeln. Sprachliche Praktiken des Sich-Widersetzens zwischen 1933 und 1945 VL - 4 ER - TY - JOUR AB - ZusammenfassungDieser Beitrag widmet sich dem Zusammenhang von geistesgeschichtlicher Literaturgeschichtsschreibung und dem Konzept der ›deutschen Bewegung‹. Er rekonstruiert vor allem dessen germanistische Adaption und Weiterentwicklung durch Paul Kluckhohn sowie seinen polyvalenten Einsatz zum heft- und jahrgangsübergreifenden Erzählen einer fortgesetzten nationalen Geistesgeschichte in der Deutschen Vierteljahrsschrift. AU - Gretz, Daniela ID - 48047 IS - 3 JF - Deutsche Vierteljahrsschrift für Literaturwissenschaft und Geistesgeschichte KW - Literature and Literary Theory KW - Philosophy KW - Cultural Studies SN - 0012-0936 TI - »Viele alte Aufgaben wurden damit in einem neuen Lichte gesehen« VL - 97 ER - TY - JOUR AU - Humpert, Lynn AU - Wäschle, Moritz AU - Horstmeyer, Sarah AU - Anacker, Harald AU - Dumitrescu, Roman AU - Albers, Albert ID - 48051 JF - Procedia CIRP KW - General Medicine SN - 2212-8271 TI - Stakeholder-oriented Elaboration of Artificial Intelligence use cases using the example of Special-Purpose engineering VL - 119 ER - TY - JOUR AB - Brainwaves have demonstrated to be unique enough across individuals to be useful as biometrics. They also provide promising advantages over traditional means of authentication, such as resistance to external observability, revocability, and intrinsic liveness detection. However, most of the research so far has been conducted with expensive, bulky, medical-grade helmets, which offer limited applicability for everyday usage. With the aim to bring brainwave authentication and its benefits closer to real world deployment, we investigate brain biometrics with consumer devices. We conduct a comprehensive measurement experiment and user study that compare five authentication tasks on a user sample up to 10 times larger than those from previous studies, introducing three novel techniques based on cognitive semantic processing. Furthermore, we apply our analysis on high-quality open brainwave data obtained with a medical-grade headset, to assess the differences. We investigate both the performance, security, and usability of the different options and use this evidence to elicit design and research recommendations. Our results show that it is possible to achieve Equal Error Rates as low as 7.2% (a reduction between 68–72% with respect to existing approaches) based on brain responses to images with current inexpensive technology. We show that the common practice of testing authentication systems only with known attacker data is unrealistic and may lead to overly optimistic evaluations. With regard to adoption, users call for simpler devices, faster authentication, and better privacy. AU - Arias-Cabarcos, Patricia AU - Fallahi, Matin AU - Habrich, Thilo AU - Schulze, Karen AU - Becker, Christian AU - Strufe, Thorsten ID - 48063 IS - 3 JF - ACM Transactions on Privacy and Security KW - Safety KW - Risk KW - Reliability and Quality KW - General Computer Science SN - 2471-2566 TI - Performance and Usability Evaluation of Brainwave Authentication Techniques with Consumer Devices VL - 26 ER - TY - JOUR AB - Data collection and aggregation by online services happens to an extent that is often beyond awareness and comprehension of its users. Transparency tools become crucial to inform people, though it is unclear how well they work. To investigate this matter, we conducted a user study focusing on Facebook, which has recently released the 'Off-Facebook Activity' transparency dashboard that informs about personal data collection from third parties. We exposed a group of n = 100 participants to the dashboard and surveyed their level of awareness and reactions to understand how transparency impacts users' privacy attitudes and intended behavior. Our participants were surprised about the massive amount of collected data, became significantly less comfortable with data collection, and more likely to take protective measures. Collaterally, we observed that current consent schemes are inadequate. Based on the survey findings, we make recommendations for more usable transparency and highlight the need to raise awareness about transparency tools and to provide easily actionable privacy controls. AU - Arias-Cabarcos, Patricia AU - Khalili, Saina AU - Strufe, Thorsten ID - 48061 IS - 1 JF - Proceedings on Privacy Enhancing Technologies KW - General Medicine SN - 2299-0984 TI - 'Surprised, Shocked, Worried'}: User Reactions to Facebook Data Collection from Third Parties VL - 2023 ER - TY - JOUR AU - Winkel, Fabian AU - Wallscheid, Oliver AU - Scholz, Peter AU - Böcker, Joachim ID - 48059 JF - IEEE Open Journal of the Industrial Electronics Society KW - Electrical and Electronic Engineering KW - Industrial and Manufacturing Engineering KW - Control and Systems Engineering SN - 2644-1284 TI - Pseudo-Labeling Machine Learning Algorithm for Predictive Maintenance of Relays ER - TY - JOUR AU - Winkel, Fabian AU - Deuse-Kleinsteuber, Johannes AU - Böcker, Joachim ID - 48058 JF - IEEE Transactions on Reliability KW - Electrical and Electronic Engineering KW - Safety KW - Risk KW - Reliability and Quality SN - 0018-9529 TI - Run-to-Failure Relay Dataset for Predictive Maintenance Research With Machine Learning ER - TY - CONF AU - Röse, Markus AU - Kablo, Emiram AU - Arias Cabarcos, Patricia ID - 48060 T2 - Proceedings of the 2023 European Symposium on Usable Security TI - Overcoming Theory: Designing Brainwave Authentication for the Real World ER - TY - CONF AU - Fallahi, Matin AU - Strufe, Thorsten AU - Arias-Cabarcos, Patricia ID - 48062 T2 - 2023 IEEE International Conference on Pervasive Computing and Communications (PerCom) TI - BrainNet: Improving Brainwave-based Biometric Recognition with Siamese Networks ER - TY - CONF AB - Artificial benchmark functions are commonly used in optimization research because of their ability to rapidly evaluate potential solutions, making them a preferred substitute for real-world problems. However, these benchmark functions have faced criticism for their limited resemblance to real-world problems. In response, recent research has focused on automatically generating new benchmark functions for areas where established test suites are inadequate. These approaches have limitations, such as the difficulty of generating new benchmark functions that exhibit exploratory landscape analysis (ELA) features beyond those of existing benchmarks.The objective of this work is to develop a method for generating benchmark functions for single-objective continuous optimization with user-specified structural properties. Specifically, we aim to demonstrate a proof of concept for a method that uses an ELA feature vector to specify these properties in advance. To achieve this, we begin by generating a random sample of decision space variables and objective values. We then adjust the objective values using CMA-ES until the corresponding features of our new problem match the predefined ELA features within a specified threshold. By iteratively transforming the landscape in this way, we ensure that the resulting function exhibits the desired properties. To create the final function, we use the resulting point cloud as training data for a simple neural network that produces a function exhibiting the target ELA features. We demonstrate the effectiveness of this approach by replicating the existing functions of the well-known BBOB suite and creating new functions with ELA feature values that are not present in BBOB. AU - Prager, Raphael Patrick AU - Dietrich, Konstantin AU - Schneider, Lennart AU - Schäpermeier, Lennart AU - Bischl, Bernd AU - Kerschke, Pascal AU - Trautmann, Heike AU - Mersmann, Olaf ID - 47522 KW - Benchmarking KW - Instance Generator KW - Black-Box Continuous Optimization KW - Exploratory Landscape Analysis KW - Neural Networks SN - 9798400702020 T2 - Proceedings of the 17th ACM/SIGEVO Conference on Foundations of Genetic Algorithms TI - Neural Networks as Black-Box Benchmark Functions Optimized for Exploratory Landscape Features ER - TY - CONF AB - Exploratory landscape analysis (ELA) in single-objective black-box optimization relies on a comprehensive and large set of numerical features characterizing problem instances. Those foster problem understanding and serve as basis for constructing automated algorithm selection models choosing the best suited algorithm for a problem at hand based on the aforementioned features computed prior to optimization. This work specifically points to the sensitivity of a substantial proportion of these features to absolute objective values, i.e., we observe a lack of shift and scale invariance. We show that this unfortunately induces bias within automated algorithm selection models, an overfitting to specific benchmark problem sets used for training and thereby hinders generalization capabilities to unseen problems. We tackle these issues by presenting an appropriate objective normalization to be used prior to ELA feature computation and empirically illustrate the respective effectiveness focusing on the BBOB benchmark set. AU - Prager, Raphael Patrick AU - Trautmann, Heike ED - Correia, João ED - Smith, Stephen ED - Qaddoura, Raneem ID - 46297 SN - 978-3-031-30229-9 T2 - Applications of Evolutionary Computation TI - Nullifying the Inherent Bias of Non-invariant Exploratory Landscape Analysis Features ER - TY - CONF AB - The design and choice of benchmark suites are ongoing topics of discussion in the multi-objective optimization community. Some suites provide a good understanding of their Pareto sets and fronts, such as the well-known DTLZ and ZDT problems. However, they lack diversity in their landscape properties and do not provide a mechanism for creating multiple distinct problem instances. Other suites, like bi-objective BBOB, possess diverse and challenging landscape properties, but their optima are not well understood and can only be approximated empirically without any guarantees. AU - Schäpermeier, Lennart AU - Kerschke, Pascal AU - Grimme, Christian AU - Trautmann, Heike ED - Emmerich, Michael ED - Deutz, André ED - Wang, Hao ED - Kononova, Anna V. ED - Naujoks, Boris ED - Li, Ke ED - Miettinen, Kaisa ED - Yevseyeva, Iryna ID - 46298 SN - 978-3-031-27250-9 T2 - Evolutionary Multi-Criterion Optimization TI - Peak-A-Boo! Generating Multi-objective Multiple Peaks Benchmark Problems with Precise Pareto Sets ER - TY - JOUR AB - The herein proposed Python package pflacco provides a set of numerical features to characterize single-objective continuous and constrained optimization problems. Thereby, pflacco addresses two major challenges in the area optimization. Firstly, it provides the means to develop an understanding of a given problem instance, which is crucial for designing, selecting, or configuring optimization algorithms in general. Secondly, these numerical features can be utilized in the research streams of automated algorithm selection and configuration. While the majority of these landscape features is already available in the R package flacco, our Python implementation offers these tools to an even wider audience and thereby promotes research interests and novel avenues in the area of optimization. AU - Prager, Raphael Patrick AU - Trautmann, Heike ID - 46299 JF - Evolutionary Computation SN - 1063-6560 TI - Pflacco: Feature-Based Landscape Analysis of Continuous and Constrained Optimization Problems in Python ER - TY - CONF AU - Wilkerson, Michelle AU - Ben-Zvi, Dani AU - Dvir, Michal AU - Matuk, Camilla AU - Podworny, Susanne AU - Stephens, Amy AU - Zapata-Cardona, Lucia ED - Slotta, J.D. ED - Charles, E.S. ID - 48100 T2 - General Proceedings of the ISLS Annual Meeting: Building Knowledge and Sustaining our Community TI - K-12 Data Science Education: Outcomes of a National Workshop; International Perspectives; and Next Steps for the Learning Sciences ER - TY - CHAP AU - Podworny, Susanne ID - 48099 SN - 1869-4918 T2 - Advances in Mathematics Education TI - Statistics and Probability Education in Germany ER - TY - CHAP AB - Paying taxes is a field of economic activity that has always been highly morally charged: the question of who pays how much or can avoid or evade the prescribed payments is always closely related to debate about a fair societal distribution of burdens. In the process of moralisation, therefore, faith communities such as the Catholic Church also repeatedly seized the floor to propagate certain norms. The article examines the contributions of theologians from Spain, the USA and West Germany in the 1940s and 1950s. It concludes that the norms of taxation they propagated differed greatly depending on the institutional and economic frameworks within which they operated. The analysis proves taxation to be a field of economic action and societal dispute where economics and morality are indissolubly interconnected. AU - Schönhärl, Korinna ED - Skambraks, Tanja ED - Lutz, Martin ID - 48165 KW - Tax history KW - religious history: financial history KW - catholic church KW - history of economic thought SN - 9783031298349 T2 - Reassessing the Moral Economy Religion and Economic Ethics from Ancient Greece to the 20th Century TI - Tax Morale and the Church: How Catholic Clergies Adapted Norms of Paying Taxes to Secular Institutions (1940s–1950s) ER - TY - JOUR AB - AbstractA new approach for the characterization of CO2 methanation catalysts prepared by thermal decomposition of a nickel MOF by hard X‐ray photon‐in/photon‐out spectroscopy in form of high energy resolution fluorescence detected X‐ray absorption near edge structure spectroscopy (HERFD‐XANES) and valence‐to‐core X‐ray emission (VtC‐XES) is presented. In contrast to conventional X‐ray absorption spectroscopy, the increased resolution of both methods allows a more precise phase determination of the final catalyst, which is influenced by the conditions during MOF decomposition. AU - Strübbe, Sven AU - Nowakowski, Michał AU - Schoch, Roland AU - Bauer, Matthias ID - 48167 JF - ChemPhysChem KW - Physical and Theoretical Chemistry KW - Atomic and Molecular Physics KW - and Optics SN - 1439-4235 TI - High‐Resolution X‐ray Absorption and Emission Spectroscopy for Detailed Analysis of New CO2 Methanation Catalysts ER - TY - BOOK ED - Drerup, Johannes ED - Göddertz, Nina ED - Mattig, Ruprecht ED - Thole , Werner ED - Uhlendorff , Uwe ID - 48164 TI - Bildungsforschung – Erziehungswissenschaftliche Perspektiven ER - TY - GEN AU - Rüther, Moritz Johannes AU - Klippstein, Sven Helge AU - Schmid, Hans-Joachim ID - 47626 SN - 0083-5560 T2 - PARTEC International Congress on Particle Technology - Book of Abstracts TI - Correlation between SLS-Powder processability and particle properties ER - TY - CHAP AU - Wallmeier, Nadine AU - Wich-Reif, Claudia ED - Hetjens, Dominik ED - Lasch, Alexander ED - Roth, Kerstin ID - 48218 T2 - Historische (Morpho-)Syntax des Deutschen TI - Vergleichskonstruktionen im Mittelniederdeutschen VL - 14 ER - TY - GEN AU - Wallmeier, Nadine ID - 48216 T2 - Linguistische Berichte TI - Sarah Ihnen (2000): Relativsätze im Mittelniederdeutschen. Korpuslinguistische Untersuchungen zu Struktur und Gebrauch. VL - 275 ER - TY - JOUR AU - Walmsley, Timothy Gordon AU - Philipp, Matthias AU - Picón-Núñez, Martín AU - Meschede, Henning AU - Taylor, Matthew Thomas AU - Schlosser, Florian AU - Atkins, Martin John ID - 48243 JF - Renewable and Sustainable Energy Reviews KW - Renewable Energy KW - Sustainability and the Environment SN - 1364-0321 TI - Hybrid renewable energy utility systems for industrial sites: A review VL - 188 ER - TY - JOUR AU - Jacke, Christoph ID - 48266 IS - 6 JF - Impulse. Texte und Bilder zur Kunstvermittlung. TI - Abhängenwerden. Fühlen und Denken. ER - TY - CHAP AU - Foerster, Anne ED - Signori, Gabriela ED - Zey, Claudia ID - 40916 T2 - Regentinnen und andere Stellvertreterfiguren Vom 10. bis zum 15. Jahrhundert TI - Regierende Herrscherwitwen und die Angst vor Fremdherrschaft. Zum Verhältnis von Dynastie und Geschlecht VL - 111 ER - TY - CHAP AU - Foerster, Anne ED - Bihrer, Andreas ED - Szill, Rike ID - 40918 T2 - Eroberte im Mittelalter: Umbruchssituationen erleben, bewältigen, gestalten TI - Die Stimmen der Eroberten bei Ermoldus Nigellus. Eine Mahnung an Ludwig den Frommen und Pippin von Aquitanien ER - TY - JOUR ID - 48287 TI - To share or not to share: What risks would laypeople accept to give sensitive data to differentially-private NLP systems? ER - TY - CHAP AU - Leiss, Dominik AU - Gerlach, Kerstin AU - Wessel, Lena AU - Schmidt-Thieme, Barbara ID - 48319 SN - 9783662666036 T2 - Handbuch der Mathematikdidaktik TI - Sprache und Mathematiklernen ER - TY - CONF AU - Habernal, Ivan AU - Mireshghallah, Fatemehsadat AU - Thaine, Patricia AU - Ghanavati, Sepideh AU - Feyisetan, Oluwaseyi ID - 48289 T2 - Proceedings of the 17th Conference of the European Chapter of the Association for Computational Linguistics: Tutorial Abstracts TI - Privacy-Preserving Natural Language Processing ER - TY - CONF AU - Matzken, Cleo AU - Eger, Steffen AU - Habernal, Ivan ID - 48288 T2 - Findings of the Association for Computational Linguistics: ACL 2023 TI - Trade-Offs Between Fairness and Privacy in Language Modeling ER - TY - CONF AU - Mouhammad, Nina AU - Daxenberger, Johannes AU - Schiller, Benjamin AU - Habernal, Ivan ID - 48291 T2 - Proceedings of the 17th Linguistic Annotation Workshop (LAW-XVII) TI - Crowdsourcing on Sensitive Data with Privacy-Preserving Text Rewriting ER - TY - CONF AU - Yin, Ying AU - Habernal, Ivan ID - 48296 T2 - Proceedings of the Natural Legal Language Processing Workshop 2022 TI - Privacy-Preserving Models for Legal Natural Language Processing ER - TY - CHAP AU - Wille, Manuel ED - Just, Anna ED - Wich-Reif, Claudia ID - 48344 T2 - Text und Bild: Relationen und Funktionen in Texten vom 8. bis 18. Jahrhundert : Akten zum internationalen Kongress 17. bis 19. Juni 2021 TI - Text-Bild-Bezüge in illustrierten Flugblättern von 1500 bis 1700 VL - 37 ER - TY - CONF AB - Star-connected cascaded H-bridge Converters require large DC-link capacitors to buffer the second-order harmonic voltage ripple. First, it is analytically proven that the DC-link voltage ripple is proportional to the apparent converter power and does not depend on the power factor for nominal operation with sinusoidal reference arm voltages and currents. A third-harmonic zero-sequence voltage injection with an optimal amplitude and phase angle transforms the 2nd harmonic to a 4th harmonic DC-link voltage ripple. This reduces the voltage ripple by exactly 50% for all power factors at steady-state at balanced conditions. However, this requires 54% additional modules for unity power factor operation and even 100% for pure reactive power operation to account for the increased reference arm voltages due to the large amplitude of the optimal third-harmonic injection. If not enough modules are available, an adaptive discontinuous PWM is utilized to still minimize the voltage ripple for the given number of modules and power factor. With a very limited number of modules (modulation index is 1.15), the proposed method still reduces the DC-link voltage ripple by 24.4% for unity power factor operation. It requires the same number of modules as the commonly utilized 3rd harmonic injection with 1/6 of the grid voltage amplitude and achieves superior results. Simulations of a 10 kV/1 MVA system confirm the analysis. AU - Unruh, Roland AU - Böcker, Joachim AU - Schafmeister, Frank ID - 48352 KW - Cascaded H-Bridge KW - Solid-State Transformer KW - Capacitor voltage ripple KW - Zero sequence voltage KW - Third harmonic injection SN - 979-8-3503-1678-0 T2 - 2023 25th European Conference on Power Electronics and Applications (EPE'23 ECCE Europe) TI - An Optimized Third-Harmonic Injection Reduces DC-Link Voltage Ripple in Cascaded H-Bridge Converters up to 50% for all Power Factors ER -