@techreport{10332, abstract = {{We analyze the incentives for retail bundling and the welfare effects of retail bundling in a decentralized distribution channel with two retailers and two monopolistic manufacturers. One manufacturer exclusively sells his good to one retailer, whereas the other manufacturer sells his good to both retailers. Thus, one retailer is a monopolist for one product but competes with the other retailer in the second product market. The two-product retailer has the option to bundle his goods or to sell them separately. We find that bundling aggravates the double marginalization problem for the bundling retailer. Nevertheless, when the retailers compete in prices, bundling can be more profitable than separate selling for the retailer as bundling softens the retail competition. The ultimate outcome depends on the manufacturers’ marginal costs. Given retail quantity competition, however, bundling is in no case the retailer’s best strategy. Furthermore, we show that profitable bundling reduces consumer and producer surplus in the equilibrium.}}, author = {{Heinzel, Joachim Maria Josef}}, keywords = {{retail bundling, leverage theory, double marginalization}}, publisher = {{CIE Working Paper Series}}, title = {{{Bundling in a Distribution Channel with Retail Competition}}}, year = {{2019}}, } @misc{10344, author = {{Pukrop, Simon}}, publisher = {{Universität Paderborn}}, title = {{{Scheduling Algorithms for Multi-Operation Jobs with Setups on a Single Machine}}}, year = {{2019}}, } @inproceedings{13554, abstract = {{We propose a novel personal reputation system for cross-platform reputation. We observe that, in certain usage scenarios, e.g. crowd work, the rater anonymity property typically imposed on reputation systems is not necessary. Instead, we propose a relaxed notion of rater anonymity that is more applicable in the crowd work scenario. This allows us to construct a secure personal reputation system from simple cryptographic primitives.}}, author = {{Blömer, Johannes and Löken, Nils}}, booktitle = {{Security and Trust Management, STM 2019}}, title = {{{Personal Cross-Platform Reputation}}}, doi = {{10.1007/978-3-030-31511-5_9}}, volume = {{11738}}, year = {{2019}}, } @inproceedings{13557, abstract = {{We present a searchable encryption scheme for dynamic document collections in a multi-user scenario. Our scheme features fine-grained access control to search results, as well as access control to operations such as adding documents to the document collection, or changing individual documents. The scheme features verifiability of search results. Our scheme also satisfies the forward privacy notion crucial for the security of dynamic searchable encryption schemes.}}, author = {{Blömer, Johannes and Löken, Nils}}, booktitle = {{12th International Symposium on Foundations and Practice of Security, FPS 2019}}, publisher = {{Springer}}, title = {{{Dynamic Searchable Encryption with Access Control}}}, volume = {{12056}}, year = {{2019}}, } @inproceedings{13585, author = {{Bohn, Nicolai and Kundisch, Dennis}}, booktitle = {{Proceedings of the 40th International Conference on Information Systems (ICIS)}}, location = {{Munich, Germany}}, title = {{{All Things Considered? – Technology Design Decision-making Characteristics in Digital Startups}}}, year = {{2019}}, } @inproceedings{13586, author = {{Seutter, Janina and Neumann, Jürgen}}, booktitle = {{Proceedings of the 40th International Conference on Information Systems (ICIS)}}, location = {{Munich, Germany}}, title = {{{Head over Feels? Differences in Online Rating Behavior for Utilitarian and Hedonic Service Aspects}}}, year = {{2019}}, } @inproceedings{13587, author = {{Gutt, Dominik and Neumann, Jürgen and Jabr, W. and Kundisch, Dennis}}, booktitle = {{Proceedings of the 40th International Conference on Information Systems (ICIS)}}, location = {{Munich, Germany}}, title = {{{The App Updating Conundrum: Implications of Platform’s Rating Resetting on Developers’ Behavior}}}, year = {{2019}}, } @misc{13592, author = {{Pilot, Matthias}}, publisher = {{Universität Paderborn}}, title = {{{Efficient Finite-Field Arithmetic for Elliptic Curve Cryptography in Java}}}, year = {{2019}}, } @inproceedings{13647, author = {{Claes, Leander and Johannesmann, Sarah and Baumhögger, Elmar and Henning, Bernd}}, booktitle = {{2019 International Congress on Ultrasonics}}, location = {{Bruges}}, title = {{{Quantification of frequency-dependent absorption phenomena}}}, doi = {{10.1121/2.0001043}}, year = {{2019}}, } @misc{13648, author = {{Scholz, Swante}}, publisher = {{Universität Paderborn}}, title = {{{Implementation and Comparison of Elliptic Curve Algorithms in Java}}}, year = {{2019}}, } @article{13650, abstract = {{Surfaces covered with layers of ultrathin nanoantenna structures—so called metasurfaces have recently been proven capable of completely controlling phase of light. Metalenses have emerged from the advance in the development of metasurfaces providing a new basis for recasting traditional lenses into thin, planar optical components capable of focusing light. The lens made of arrays of plasmonic gold nanorods were fabricated on a glass substrate by using electron beam lithography. A 1064 nm laser was used to create a high intensity circularly polarized light focal spot through metalens of focal length 800 µm, N.A. = 0.6 fabricated based on Pancharatnam-Berry phase principle. We demonstrated that optical rotation of birefringent nematic liquid crystal droplets trapped in the laser beam was possible through this metalens. The rotation of birefringent droplets convinced that the optical trap possesses strong enough angular momentum of light from radiation of each nanostructure acting like a local half waveplate and introducing an orientation-dependent phase to light. Here, we show the success in creating a miniaturized and robust metalens based optical tweezers system capable of rotating liquid crystals droplets to imitate an optical motor for future lab-on-a-chip applications.}}, author = {{Suwannasopon, Satayu and Meyer, Fabian and Schlickriede, Christian and Chaisakul, Papichaya and T-Thienprasert, Jiraroj and Limtrakul, Jumras and Zentgraf, Thomas and Chattham, Nattaporn}}, issn = {{2073-4352}}, journal = {{Crystals}}, number = {{10}}, pages = {{515}}, title = {{{Miniaturized Metalens Based Optical Tweezers on Liquid Crystal Droplets for Lab-on-a-Chip Optical Motors}}}, doi = {{10.3390/cryst9100515}}, volume = {{9}}, year = {{2019}}, } @article{13651, author = {{Chen, Shumei and Reineke, Bernhard and Li, Guixin and Zentgraf, Thomas and Zhang, Shuang}}, issn = {{1530-6984}}, journal = {{Nano Letters}}, number = {{9}}, pages = {{6278--6283}}, title = {{{Strong Nonlinear Optical Activity Induced by Lattice Surface Modes on Plasmonic Metasurface}}}, doi = {{10.1021/acs.nanolett.9b02417}}, volume = {{19}}, year = {{2019}}, } @inproceedings{13652, author = {{Hinnenthal, Kristian and Scheideler, Christian and Struijs, Martijn}}, booktitle = {{33rd International Symposium on Distributed Computing (DISC 2019)}}, title = {{{Fast Distributed Algorithms for LP-Type Problems of Low Dimension}}}, doi = {{10.4230/LIPICS.DISC.2019.23}}, year = {{2019}}, } @article{13654, author = {{Goller, Michael and Ursin, Jani and Vähäsantanen, Katja and Festner, Dagmar and Harteis, Christian}}, issn = {{0742-051X}}, journal = {{Teaching and Teacher Education}}, pages = {{235--248}}, title = {{{Finnish and German student teachers’ motivations for choosing teaching as a career. The first application of the FIT-Choice scale in Finland}}}, doi = {{10.1016/j.tate.2019.06.023}}, year = {{2019}}, } @phdthesis{13679, author = {{Brauer, Sascha}}, title = {{{Classification and Approximation of Geometric Location Problems}}}, doi = {{10.17619/UNIPB/1-816}}, year = {{2019}}, } @article{13805, author = {{Mahnken, Rolf and Ju, Xiaozhe}}, issn = {{0029-5981}}, journal = {{International Journal for Numerical Methods in Engineering}}, title = {{{Goal‐oriented adaptivity based on a model hierarchy of mean‐field and full‐field homogenization methods in linear elasticity}}}, doi = {{10.1002/nme.6209}}, year = {{2019}}, } @article{13806, author = {{Dammann, Christian and Mahnken, Rolf}}, issn = {{1359-835X}}, journal = {{Composites Part A: Applied Science and Manufacturing}}, pages = {{147--160}}, title = {{{Simulation of a resin transfer molding process using a phase field approach within the theory of porous media}}}, doi = {{10.1016/j.compositesa.2019.02.022}}, volume = {{120}}, year = {{2019}}, } @article{13807, author = {{Ju, X. and Mahnken, R.}}, journal = {{PAMM}}, title = {{{"Goal-oriented adaptivity on mean-field and full-field homogenization methods considering hierarchical unit cells"}}}, volume = {{19}}, year = {{2019}}, } @article{13809, author = {{Kremer, H.-Hugo and Frehe-Halliwell, Petra}}, journal = {{BWP}}, pages = {{5}}, publisher = {{Franz Steiner Verlag}}, title = {{{Entwicklungsförderliche Gestaltung von Qualifizierungsbausteinen in der dualisierten Ausbildungsvorbereitung}}}, year = {{2019}}, } @inbook{13811, author = {{Kremer, H.-Hugo and Frehe-Halliwell, Petra}}, booktitle = {{Potenzialorientierte Förderung in den Fachdidaktiken}}, editor = {{Veber, Marcel and Benölken, Ralf and Pfitzner, Michael}}, pages = {{151 -- 170}}, publisher = {{Waxmann}}, title = {{{Eine Analyse ausbildungsvorbereitender Bildungsgänge}}}, volume = {{Band 7}}, year = {{2019}}, } @article{13813, author = {{Lenz, P. and Mahnken, R.}}, journal = {{PAMM}}, title = {{{"Damage simulation of fiber reinforced composites using mean-field homogenization methods" }}}, volume = {{19}}, year = {{2019}}, } @article{25030, author = {{Schenke, Maximilian and Kirchgässner, Wilhelm and Wallscheid, Oliver}}, issn = {{1551-3203}}, journal = {{IEEE Transactions on Industrial Informatics}}, pages = {{4650--4658}}, title = {{{Controller Design for Electrical Drives by Deep Reinforcement Learning: A Proof of Concept}}}, doi = {{10.1109/tii.2019.2948387}}, year = {{2019}}, } @inproceedings{29859, author = {{Grosser, Christine}}, location = {{Universität Bielefeld}}, title = {{{Welche Vorstellungen und Nutzenbewertungen äußern Referendare bzgl. des Forschenden Lernens im Referendariat?}}}, year = {{2019}}, } @misc{29860, author = {{Grosser, Christine}}, title = {{{Lernstrategien und Lernhaltungen des Forschenden Lernens im Referendariat}}}, year = {{2019}}, } @inproceedings{29885, author = {{Joy, Meryl Teresa and Böcker, Joachim}}, booktitle = {{2018 IEEE International Conference on Power Electronics, Drives and Energy Systems (PEDES)}}, location = {{Chennai, India}}, publisher = {{IEEE}}, title = {{{Speed Estimation in Induction Machines at all Speed Ranges Using Sensing Windings}}}, doi = {{10.1109/pedes.2018.8707494}}, year = {{2019}}, } @inproceedings{21247, author = {{Kirchgässner, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)}}, isbn = {{9781728136660}}, title = {{{Empirical Evaluation of Exponentially Weighted Moving Averages for Simple Linear Thermal Modeling of Permanent Magnet Synchronous Machines}}}, doi = {{10.1109/isie.2019.8781195}}, year = {{2019}}, } @inproceedings{21249, author = {{Kirchgässner, Wilhelm and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{2019 IEEE International Electric Machines & Drives Conference (IEMDC)}}, isbn = {{9781538693506}}, title = {{{Deep Residual Convolutional and Recurrent Neural Networks for Temperature Estimation in Permanent Magnet Synchronous Motors}}}, doi = {{10.1109/iemdc.2019.8785109}}, year = {{2019}}, } @inbook{29900, author = {{Rehlaender, Philipp and Schroeer, Maik and Chadha, Gavneet and Schwung, Andreas}}, booktitle = {{Proceedings of the International Neural Networks Society}}, isbn = {{9783030168407}}, issn = {{2661-8141}}, publisher = {{Springer International Publishing}}, title = {{{Traffic Sign Detection Using R-CNN}}}, doi = {{10.1007/978-3-030-16841-4_24}}, year = {{2019}}, } @inproceedings{16441, author = {{Rehlaender, Philipp and Grote, Tobias and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{PCIM Europe 2019}}, location = {{Nürnberg}}, title = {{{Interleaved Active Clamp Forward Converters as Single Stage On-Board DC-DC Converters for EVs - an Accurate Model and Design Considerations}}}, year = {{2019}}, } @inproceedings{29999, abstract = {{For future Vehicle-to-Grid (V2G) applications, the six-switch full-bridge is often used as AC-DC front-end converter of a three-phase EV-charger. In many publications, the common mode (CM) noise is not taken into account. However, this must not be neglected considering the large effective capacitance, of up to 3 muF, as allowed by new standards. In this paper, different modulation techniques are investigated, related to their CM-noise. Based on electric circuit simulations, CM-filters are estimated, and the CM-currents are investigated. Accordingly, the conventional six-switch full-bridge is practically difficult to use in non-isolated chargers, because the resulting CM-currents and/or the required EMI-filter become too large, even if CM-Voltage optimized modulation techniques are used.}}, author = {{Strothmann, Benjamin and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management}}, pages = {{1--7}}, title = {{{Common Mode Analysis of Non-Isolated Three-Phase EV-Charger for Bi-Directional Vehicle-to-Grid Operation}}}, year = {{2019}}, } @inproceedings{30002, abstract = {{Utilisation of SiC semiconductors' fast switching speeds and high switching frequencies as a consequent are often in discussion. But which switching frequency is really optimal in terms of converter volume, losses and costs? Based on the example of a buck converter, this question is investigated, and a tool for loss calculation and design is described in this paper. A Pareto optimization of the converter is performed where the switching frequency is one of several design parameters. The buck converter can be realized by multiple rails interleaved, and several switches can be placed in parallel. Considered converter modes are continuous conduction mode, that allows hard-switching, ZVS, and incomplete ZVS depending on the switching frequency. Based on Pareto optimizations, a design is selected, and a laboratory sample of 5.5 kW for application in an EV battery charger is built up. Efficiencies of 99.5 % are achieved with switching frequencies of around 100 kHz.}}, author = {{Strothmann, Benjamin and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{2019 IEEE Applied Power Electronics Conference and Exposition (APEC)}}, publisher = {{IEEE}}, title = {{{Pareto Design and Switching Frequencies for SiC MOSFETs Applied in an 11 kW Buck Converter for EV-Charging}}}, doi = {{10.1109/apec.2019.8721850}}, year = {{2019}}, } @inproceedings{16442, author = {{Rehlaender, Philipp and Grote, Tobias and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{PCIM Europe 2019}}, location = {{Nürnberg}}, title = {{{Analytical Modeling and Design of an Active Clamp Forward Converter Applied as a Single-Stage On-Board DC-DC Converter for EVs}}}, year = {{2019}}, } @inproceedings{29942, abstract = {{Due to recent developments in MMCs, they are used in many medium-voltage and high-power applications today, but efficient and modular solutions for high-power at low-voltage such as for electrolysis are still required. The proposed Y-MMC converts the grid AC-voltage into a DC-voltages, and an LLC converter is connected to each submodule capacitor to provide the required current to the DC-load. This paper proposes a topology that uses only half the number of submodules and moreover to reduce the effective switching frequency by a third, while preserving the same THD und output power of an YY-MMC.}}, author = {{Unruh, Roland and Schafmeister, Frank and Fröhleke, Norbert and Böcker, Joachim}}, booktitle = {{PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management}}, isbn = {{978-3-8007-4938-6}}, location = {{Nuremberg, Germany}}, publisher = {{VDE}}, title = {{{MMC-Topology for High-Current and Low-Voltage Applications with Minimal Number of Submodules, Reduced Switching and Capacitor Losses}}}, year = {{2019}}, } @inproceedings{30035, author = {{Stender, Marius and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)}}, publisher = {{IEEE}}, title = {{{Development of a Black-Box Two-Level IGBT Three-Phase Inverter Compensation Scheme for Electrical Drives}}}, doi = {{10.1109/isie.2019.8781543}}, year = {{2019}}, } @inbook{30094, author = {{Ficara, Elena}}, booktitle = {{Hegel, Logic and Speculation}}, editor = {{Bubbio, Diego and De Cesaris , Alessandro and Pagano, Maurizio and Weslati, Hager}}, pages = {{15 -- 26}}, publisher = {{Bloomsbury }}, title = {{{Empowering Forms. Hegel’s conception of ‘form’ and ‘formal’}}}, year = {{2019}}, } @inbook{30091, author = {{Ficara, Elena}}, booktitle = {{Graham Priest on Paraconsistency and Dialetheism}}, editor = {{Baskent , Can and Ferguson , Thomas Macaulay}}, publisher = {{Springer }}, title = {{{ Hegel and Priest on Revising Logic}}}, year = {{2019}}, } @article{30093, author = {{Ficara, Elena}}, journal = {{Argumenta}}, title = {{{Hegel on the Naturalness of Logic}}}, year = {{2019}}, } @inproceedings{29636, author = {{Hanke, Sören and Peitz, Sebastian and Wallscheid, Oliver and Böcker, Joachim and Dellnitz, Michael}}, booktitle = {{2019 IEEE International Symposium on Predictive Control of Electrical Drives and Power Electronics (PRECEDE)}}, pages = {{1–6}}, title = {{{Finite-control-set model predictive control for a permanent magnet synchronous motor application with online least squares system identification}}}, year = {{2019}}, } @inproceedings{29634, author = {{Wallscheid, Oliver and Shafiq, Muhammad Saad and Böcker, Joachim}}, booktitle = {{2019 IEEE 28th International Symposium on Industrial Electronics (ISIE)}}, pages = {{402–407}}, title = {{{Stator flux-based field-oriented position-sensorless control of permanent magnet synchronous motors with limited parameter knowledge}}}, year = {{2019}}, } @inproceedings{29633, author = {{Wallscheid, Oliver and Ngoumtsa, Etienne Florian Bouna and Böcker, Joachim}}, booktitle = {{2019 IEEE International Electric Machines & Drives Conference (IEMDC)}}, pages = {{2188–2195}}, title = {{{Hierarchical model predictive speed and current control of an induction machine drive with moving-horizon load torque estimator}}}, year = {{2019}}, } @inproceedings{29637, author = {{Hanke, Sören and Wallscheid, Oliver and Böcker, Joachim}}, booktitle = {{2019 IEEE International Electric Machines & Drives Conference (IEMDC)}}, pages = {{2210–2216}}, title = {{{Continuous-control-set model predictive control with integrated modulator in permanent magnet synchronous motor applications}}}, year = {{2019}}, } @article{29629, author = {{Gaona, Daniel Efren Erazo and Wallscheid, Oliver and Böcker, Joachim}}, journal = {{IEEE Transactions on Industrial Electronics}}, title = {{{Improved Fusion of Permanent Magnet Temperature Estimation Techniques for Synchronous Motors Using a Kalman Filter}}}, year = {{2019}}, } @article{15075, author = {{Bünnings, Christian and Schmitz, Hendrik and Tauchmann, Harald and Ziebarth, Nicolas R.}}, issn = {{0022-4367}}, journal = {{Journal of Risk and Insurance}}, number = {{2}}, pages = {{415--449}}, title = {{{The Role of Prices Relative to Supplemental Benefits and Service Quality in Health Plan Choice}}}, doi = {{10.1111/jori.12219}}, volume = {{86}}, year = {{2019}}, } @inproceedings{8538, abstract = {{This paper explores Finnish, German and Swedish older adults’ perceptions of a future welfare service with increased use of welfare technologies, specifically care robots. The issues are the rapid digitalization and development of health and welfare technology, which presently is mainly technology driven (not need or user driven), and the demographic challenge. The aim of the study was to explore older adults’ perception of the future use of welfare technology or care robots. A qualitative approach with focus group discussions was employed, followed by thematic analysis. The results are presented in four overall themes: the impact on daily life for older adults and professional caregivers, codes of practice and terms of use, dissemination of information and knowledge, and conditions for successful implementation. There were significant differences in the informants’ attitudes toward and knowledge about care robots. However, the informants’ attitudes appeared to change during the focus groups and in general, became more positive. Authentic needs, which care robots could support, refer to independence, safety and security, and the ability to manage or ease daily life or working life. The results suggest that older adults, after receiving relevant information, were open to the idea of being supported by care robots in their daily lives.}}, author = {{Johansson-Pajala, Rose-Marie and Thommes, Kirsten and Hoppe, Julia Amelie and Tuisku, Outi and Hennala, Lea and Pekkarinen, Satu and Melkas, Helinä and Gustafsson, Christine }}, booktitle = {{HCII 2019}}, editor = {{Zhou, Jia and Salvendy, Gavriel}}, isbn = {{978-3-030-22011-2}}, keywords = {{Care robots, Older adults, Implementation, Information, Perceptions, Welfare technology}}, location = {{Orlando}}, pages = {{212--227}}, publisher = {{Springer}}, title = {{{Improved Knowledge Changes the Mindset: Older Adults’ Perceptions of Care Robots}}}, doi = {{10.1007/978-3-030-22012-9_16}}, volume = {{11592}}, year = {{2019}}, } @inproceedings{30334, author = {{Keuck, Lukas and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. 34th IEEE Applied Power Electronics Conference (APEC)}}, location = {{Anaheim, CA, USA}}, pages = {{1415 -- 1422}}, publisher = {{IEEE}}, title = {{{Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for an LLC Resonant Converter}}}, year = {{2019}}, } @inproceedings{30335, author = {{Keuck, Lukas and Schafmeister, Frank and Böcker, Joachim and Jungwirth, Herbert and Schmidhuber, Michael}}, booktitle = {{Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM)}}, location = {{Nuremberg, Germany}}, publisher = {{IEEE}}, title = {{{Computer-Aided Design and Optimization of an Integrated Transformer with Distributed Air Gap and Leakage Path for LLC Resonant Converter}}}, year = {{2019}}, } @inproceedings{30337, author = {{Ahmad, Mohsin Ejaz and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM)}}, location = {{Nuremberg, Germany}}, publisher = {{IEEE}}, title = {{{Novel Current Measurement Concept for Half Bridge Topologies based on simple-to-implement Digital Current Observer}}}, year = {{2019}}, } @inproceedings{30336, author = {{Bolte, Sven and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM)}}, location = {{Nuremberg, Germany}}, publisher = {{IEEE}}, title = {{{LCC Resonant Converter for Piezoelectric Transducers with Phase Shift Control}}}, year = {{2019}}, } @inproceedings{30338, author = {{Bolte, Sven and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. IEEE International Symposium on Industrial Electronics (ISIE)}}, location = {{Vancouver, Canada}}, pages = {{770 -- 774}}, publisher = {{IEEE}}, title = {{{Bidirectional Resonant Converter with Integrated Magnetics for On-Board Chargers}}}, year = {{2019}}, } @inproceedings{30344, author = {{Rehlaender, Philipp and Grote, Tobias and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. IEEE International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (PCIM)}}, location = {{Nuremberg, Germany}}, publisher = {{IEEE}}, title = {{{Interleaved Active Clamp Forward Converters as Single Stage On-Board DC-DC Converters for EVs – an Accurate Model and Design Considerations}}}, year = {{2019}}, } @inproceedings{30346, author = {{Rehlaender, Philipp and Grote, Tobias and Tikhonov, Sergey and Njiende, Hugues and Schafmeister, Frank and Böcker, Joachim and Thiemann, Peter}}, booktitle = {{Proc. 21st European Conference on Power Electronics and Applications (EPE-ECCE Europe)}}, location = {{Genova, Italy}}, pages = {{1 -- 9}}, publisher = {{EPE}}, title = {{{A PCB-Integrated Winding Using a Litz Structure for a Wireless Charging Coil}}}, year = {{2019}}, } @inproceedings{30345, author = {{Rehlaender, Philipp and Grote, Tobias and Schafmeister, Frank and Böcker, Joachim}}, booktitle = {{Proc. IEEE International Symposium on Industrial Electronics (ISIE)}}, location = {{Vancouver, Canada}}, pages = {{2477 -- 2482 }}, publisher = {{IEEE}}, title = {{{Analytical Topology Comparison for a Single-Stage On-Board EV-Battery Converter}}}, year = {{2019}}, } @misc{30361, author = {{Pohlmann, Robert and Schafmeister, Frank}}, pages = {{20}}, title = {{{Current measurement circuit for TCM-PFC}}}, year = {{2019}}, } @inproceedings{24515, author = {{Tischendorf, Ricardo and Bieber, M. and Kneer, R. and Schmid, Hans-Joachim}}, keywords = {{FSP, nanoparticle synthesis, in situ measurements}}, location = {{Nürnberg}}, publisher = {{PARTEC 2019 International Congress on Particle Technology}}, title = {{{Representative Sample Extraction from Spray Flames for SMPS and HR-TEM Measurements}}}, year = {{2019}}, } @inproceedings{25059, author = {{Tischendorf, Ricardo and Schmid, Hans-Joachim}}, location = {{Frankfurt}}, publisher = {{Jahrestreffen der ProcessNet-Fachgruppen Partikelmesstechnik und Aerosoltechnologie}}, title = {{{Experimentelle Charakterisierung von Eisenoxid-Nanopartikeln aus Sprayflammen mit koaxialer Zweistoffzerstäubung}}}, year = {{2019}}, } @inproceedings{7626, author = {{Schubert, Philipp and Hermann, Ben and Bodden, Eric}}, booktitle = {{Proceedings of the 25th International Conference on Tools and Algorithms for the Construction and Analysis of Systems (TACAS 2019), Held as Part of the European Joint Conferences on Theory and Practice of Software (ETAPS 2019)}}, location = {{Prague, Czech Republic}}, pages = {{393--410}}, title = {{{PhASAR: An Inter-Procedural Static Analysis Framework for C/C++}}}, doi = {{10.1007/978-3-030-17465-1_22}}, volume = {{II}}, year = {{2019}}, } @inproceedings{22457, author = {{Bothe, Mike and Fedorov, Alexander and Frei, Herrmann and Lutters, Nicole and Kenig, Eugeny}}, location = {{Potsdam}}, publisher = {{Jahrestreffen der ProcessNet-Fachgruppen Fluidverfahrenstechnik und Membrantechnik}}, title = {{{Dynamische Simulation reaktiver Absorptionsprozesse zur Entwicklung modellbasierter Werkzeuge zur Vermeidung von Vor- und Notfallsituationen in der Industrie}}}, year = {{2019}}, } @inbook{17637, author = {{Peckhaus, Volker}}, booktitle = {{Der Wiener Kreis – Aktualität in Wissenschaft, Literatur, Architektur und Kunst}}, editor = {{Arnswald, Ulrich and Stadler, Friedrich and Weibel, Peter}}, pages = {{115--129}}, publisher = {{LIT Verlag}}, title = {{{Logik im Logischen Empirismus}}}, volume = {{17}}, year = {{2019}}, } @phdthesis{30670, author = {{Ott, M.}}, title = {{{Identifikation und Kompensation produktionsbedingter Abweichungen im elektrischen Antrieb von Elektro- und Hybridfahrzeugen}}}, doi = {{10.17619/UNIPB/1-700}}, year = {{2019}}, } @inproceedings{16032, author = {{Stallmeister, Tim and Chalicheemalapalli Jayasankar, Deviprasad and Wang, Z. and Tröster, Thomas}}, isbn = {{9781925627220}}, location = {{Melbourne }}, title = {{{Self-sealing tool concept for RTM-processes}}}, year = {{2019}}, } @inproceedings{16033, author = {{Stallmeister, Tim and Chalicheemalapalli Jayasankar, Deviprasad and Wang, Z. and Tröster, Thomas}}, location = {{Neu-Ulm}}, title = {{{Selbstabdichtendes Werkzeugkonzept für RTM-Prozesse}}}, year = {{2019}}, } @article{30932, author = {{Herberg, Artjom and Yu, Xiaoqian and Kuckling, Dirk}}, journal = {{Polymers}}, keywords = {{controlled radical polymerization, atom transfer radical polymerization, end group determination, N-isopropylacrylamide, block copolymerization, smart polymers, temperature sensitive polymers, lower critical solution temperature, ESI-TOF mass spectrometry, ion mobility separation, size exclusion chromatography}}, number = {{4}}, publisher = {{MDPI}}, title = {{{End Group Stability of Atom Transfer Radical Polymerization (ATRP)-Synthesized Poly(N-isopropylacrylamide): Perspectives for Diblock Copolymer Synthesis}}}, doi = {{https://doi.org/10.3390/polym11040678}}, volume = {{11}}, year = {{2019}}, } @article{30929, author = {{Li, Jie and Ji, Chendong and Yu, Xiaoqian and Yin, Meizhen and Kuckling, Dirk}}, issn = {{1022-1336}}, journal = {{Macromolecular Rapid Communications}}, keywords = {{Materials Chemistry, Polymers and Plastics, Organic Chemistry}}, number = {{14}}, publisher = {{Wiley}}, title = {{{Dually Cross‐Linked Supramolecular Hydrogel as Surface Plasmon Resonance Sensor for Small Molecule Detection}}}, doi = {{10.1002/marc.201900189}}, volume = {{40}}, year = {{2019}}, } @article{30927, author = {{Reis, Berthold and Vehlow, David and Rust, Tarik and Kuckling, Dirk and Müller, Martin}}, journal = {{International Journal of Molecular Science}}, keywords = {{catechol chemistry, poly(caffeic acid), polyelectrolyte complex coatings, thermoresponsive coatings, controlled release, bortezomib, multiple myeloma}}, number = {{23}}, publisher = {{MDPI}}, title = {{{Thermoresponsive Catechol Based-Polyelectrolyte Complex Coatings for Controlled Release of Bortezomib}}}, doi = {{10.3390/ijms20236081}}, volume = {{20}}, year = {{2019}}, } @article{30928, author = {{Yu, Xiaoqian and Herberg, Artjom and Kuckling, Dirk}}, issn = {{0014-3057}}, journal = {{European Polymer Journal}}, keywords = {{Organic Chemistry, Polymers and Plastics, General Physics and Astronomy, Materials Chemistry}}, publisher = {{Elsevier BV}}, title = {{{Azlactone-functionalized smart block copolymers for organocatalyst immobilization}}}, doi = {{10.1016/j.eurpolymj.2019.08.034}}, volume = {{120}}, year = {{2019}}, } @article{30934, author = {{Mahlert, Laura and Anderski, Juliane and Schoppa, Timo and Mulac, Dennis and Sun, Jingjiang and Kuckling, Dirk and Langer, Klaus}}, issn = {{0378-5173}}, journal = {{International Journal of Pharmaceutics}}, keywords = {{Light-responsive polymersPhotodynamic therapyControlled drug deliveryHT-29-MTX cellsIntestinal cancer}}, pages = {{199--208}}, publisher = {{Elsevier BV}}, title = {{{In vitro evaluation of innovative light-responsive nanoparticles for controlled drug release in intestinal PDT}}}, doi = {{10.1016/j.ijpharm.2019.04.077}}, volume = {{565}}, year = {{2019}}, } @article{30936, author = {{Sun, Jingjiang and Jung, Dimitri and Schoppa, Timo and Anderski, Juliane and Picker, Marie-Theres and Ren, Yi and Mulac, Dennis and Stein, Nora and Langer, Klaus and Kuckling, Dirk}}, issn = {{2576-6422}}, journal = {{ACS Applied Bio Materials}}, keywords = {{light-responsive polymers, biodegradable polymers, polycondensation}}, number = {{7}}, pages = {{3038--3051}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Light-Responsive Serinol-Based Polycarbonate and Polyester as Degradable Scaffolds}}}, doi = {{10.1021/acsabm.9b00347}}, volume = {{2}}, year = {{2019}}, } @article{30933, author = {{Sun, Jingjiang and Anderski, Juliane and Picker, Marie-Theres and Langer, Klaus and Kuckling, Dirk}}, issn = {{1022-1352}}, journal = {{Macromolecular Chemistry and Physics}}, keywords = {{Materials Chemistry, Organic Chemistry, Polymers and Plastics, Physical and Theoretical Chemistry, Condensed Matter Physics}}, number = {{5}}, publisher = {{Wiley}}, title = {{{Preparation of Light-Responsive Aliphatic Polycarbonate via Versatile Polycondensation for Controlled Degradation}}}, doi = {{10.1002/macp.201800539}}, volume = {{220}}, year = {{2019}}, } @article{24462, abstract = {{This article offers new insight into students’ responses to Womens’ and Gender Studies (WGS) classes by overcoming the self-selection bias hitherto inherent in the field. Exploring the experiences of 1406 students (770 women, 636 men) of a university with a WGS requirement across all study programmes, we examine the prevailing discourses on WGS, participants’ (dis)agreement as well as personal and professional benefits gained through WGS. Additionally, we evaluate the perceived value of WGS for themselves, in society, and of WGS opportunities in higher education. Findings reveal a gender bias regarding discourses, experience, benefit, and value, with 70.1% women and 32.4% men supporting the idea of WGS as a mandatory subject. Women’s support indicates a need for tools to negotiate gender issues, while men’s resistance serves to defend male privileges. We conclude that a requirement of WGS classes amplifies the potential for both – resistance and change.}}, author = {{Horwath, Ilona and Diabl, Christian}}, issn = {{0954-0253}}, journal = {{Gender and Education}}, keywords = {{Education policy, equality, higher education, critical pedagogies, gender mainstreaming, curriculum}}, pages = {{1109--1126}}, title = {{{Liberating or indoctrinating? Surveying students’ perceptions of a Womens’ and Gender Studies requirement}}}, doi = {{10.1080/09540253.2019.1608355}}, year = {{2019}}, } @inproceedings{24464, author = {{ Terhechte, Johannes and Berscheid, Anna Lena and Horwath, Ilona}}, location = {{Plzeň, Czech Republic}}, title = {{{DEVELOPMENT OF A CYBER-PHYSICAL SIMULATION ASSISTANCE SYSTEM FOR PARTIALLY AUTOMATED OPTIMIZATION OF THE EXTRUSION PROCESS}}}, year = {{2019}}, } @article{24460, author = {{Berscheid, Anna Lena and Horwath, Ilona and Riegraf, Birgitt}}, issn = {{2365-9920}}, journal = {{Feministische Studien}}, pages = {{241--249}}, title = {{{Einleitung: Cyborgs revisited: Zur Verbindung von Geschlecht, Technologien und Maschinen}}}, doi = {{10.1515/fs-2019-0025}}, year = {{2019}}, } @inproceedings{19893, author = {{Vorderbrüggen, Julian and Gröger, Benjamin and Kupfer, Robert and Hoog, Arne and Gude, Maik and Meschut, Gerson}}, booktitle = {{PROCEEDINGS OF THE 22ND INTERNATIONAL ESAFORM CONFERENCE ON MATERIAL FORMING: ESAFORM 2019}}, title = {{{Phenomena of forming and failure in joining hybrid structures – Experimental and numerical studies of clinching thermoplastic composites and metal}}}, doi = {{10.1063/1.5112580}}, year = {{2019}}, } @article{19894, author = {{Vorderbrüggen, Julian and Meschut, Gerson}}, issn = {{0263-8223}}, journal = {{Composite Structures}}, title = {{{Investigations on a material-specific joining technology for CFRP hybrid joints along the automotive process chain}}}, doi = {{10.1016/j.compstruct.2019.111533}}, year = {{2019}}, } @article{22047, abstract = {{Plastic freeforming (PF) is an additive-manufacturing process for producing three-dimensional plastic parts based on 3D CAD data by applying plastic droplets in layers. This process is used to produce customer-specific and complex geometries (prototypes and small series) on organic sheets. A comparable serial process is the injection of a second component onto organic sheets by injection molding. A sufficient bond between the PF structure and the organic sheets is of particular importance for each application. If this is not guaranteed, the composite system cannot withstand the mechanical load and fails. The force exerted on the system can no longer be transmitted between the PF structure and the organic sheet. The organic sheet is made of glass fiber-reinforced polypropylene (PP). The connection between the organic sheet and the PF structure is achieved by welding the molten polymer droplets and the surface of the organic sheet. The PF structures are made of PP to ensure sufficient compatibility with regard to the weldability of the components. The processing of PP in the PF process is a challenge because PP is a semicrystalline material. The shrinkage of semi-crystalline materials is significantly higher compared to amorphous materials. Due to the layered structure of the components, the shrinkage of the individual layers results in undesired warpage. The adhesive strength between the organic sheet and the PF structure is investigated by determining the bending strength in the 3-point bending test. The investigations include an optimization of the process parameters to maximize the adhesive strength. The experimental investigations show that an increase of the nozzle and build chamber temperature leads to a higher adhesive strength. In further investigations, the temperature of the nozzle shows no significant influence on the surface temperature despite the expected heat radiation. The surface temperature is almost only dependent on the temperature of the build chamber.}}, author = {{Moritzer, Elmar and Hirsch, André and Heim, H.P. and Cherif, C. and Truemper, W.}}, journal = {{Welding in the World}}, pages = {{867--873}}, publisher = {{Springer}}, title = {{{Plastic droplet welding: bond strength between plastic freeforming structures and continuous fiber-reinforced thermoplastic composites}}}, doi = {{10.1007/s40194-019-00714-3}}, volume = {{63}}, year = {{2019}}, } @inproceedings{22028, abstract = {{The mechanical properties of thin-walled plastic components are limited. One approach to improve the strength or stiffness of these components is to reinforce the thin-walled areas with an individually adapted Fused Deposition Modeling structure. Fused Deposition Modeling (FDM) is one of the most commonly used additive manufacturing processes. This process is characterized by the deposition of a fused, thermoplastic filament. Depending on the form of the reinforcement structure, the resulting hybrid structure should show higher strength or stiffness. The objective of the project is to determine constructive design and process guidelines for FDM structures. The FDM structure is to be used as a partial reinforcement for lightweight components and be adapted to the respective load conditions. Because of the lightweight application, the FDM structure should also have the lowest possible weight. The optimization of the FDM parts for different load cases is realized by adapting the design parameters. These parameters influence the layer generation and therefore also the inner structure of the FDM parts. In preliminary studies, the manufacturing restrictions of the FDM process are defined. The specimens are manufactured based on the Design of Experiments. To determine the static strength properties, different tests (tensile, compression, flexural, torsion and impact) are carried out. The investigations show that the filling strategy affects the mechanical properties. As a result of the investigations, design and process guidelines for the FDM structures are established according to the load conditions.}}, author = {{Moritzer, Elmar and Hirsch, André and Bürenhaus, Franziska Isabelle}}, booktitle = {{AIP Conference Proceedings}}, number = {{1}}, publisher = {{AIP Publishing}}, title = {{{Development and Modeling of Design and Process Guidelines for FDM Structures for the Partial Reinforcement of Hybrid Structures}}}, doi = {{10.1063/1.5088314}}, volume = {{2065}}, year = {{2019}}, } @inproceedings{22027, abstract = {{Additive manufacturing processes, like the Fused Deposition Modeling (FDM) process, do not need product-specific tools and create parts directly from the CAD data. In the FDM process, the semi-finished product, a wire of a thermoplastic polymer, is melted and forced through a nozzle. The continuous positioning of this nozzle allows the polymer to weld together strand by strand and layer by layer to produce a component. Because no mold is used in the FDM process, no holding pressure can be generated as in injection molding processes, in which the holding pressure is used to minimize the shrinkage and warpage of the part. In the FDM process, the part is generated in an ambient pressure environment. Each strand cools down and shrinks separately. This causes residual stresses in the part that can lead to major warpage and a complete stoppage of the process. This is the main reason why the material selection in the FDM process is restricted in comparison to conventional polymer processing technologies. In this paper, the warpage of different polymers is quantified as a criterion for evaluating the processability of polymers in the FDM process. Due to the process principle, the part properties in the FDM process are mainly influenced by the machine quality and the data processing, so that it is difficult to test a material for FDM independently of the machine and the data processing. Considering these influences, a custom-built specimen is created to test and quantify the warpage of different types of blended and reinforced polyamide 6. Considering the experimentally investigated warpage, the materials can be evaluated and the warpage can be related to the shrinkage investigated in pvT measurements. This procedure allows the machine- and process-independent rating of the processability in terms of warpage for different materials. Alongside other criteria, this is a necessary step to develop new materials with good processability in the FDM process.}}, author = {{Schöppner, Volker and Schumacher, C. and Fels, C.}}, booktitle = {{AIP Conference Proceedings}}, publisher = {{AIP Publishing}}, title = {{{A Method to Evaluate the Process-Specific Warpage for Different Polymers in the FDM Process}}}, doi = {{10.1063/1.5088315}}, year = {{2019}}, } @book{22026, abstract = {{Das Fused Deposition Modeling (FDM) ist ein etabliertes additives Fertigungsverfahren zur Her-stellung von thermoplastischen Kunststoffbauteilen. In dem vorliegenden Beitrag sind FDM-Verstärkungsstrukturen aus dem Material Ultem 9085 dynamischen Langzeituntersuchungen un-terzogen worden. Dabei wurde die innere Struktur der Probekörper über eine Parametervariation verändert, sodass anschließend die signifikanten Einflussfaktoren auf die Langzeitfestigkeit un-ter dynamischer Belastung identifiziert und analysiert werden konnten. Mit dieser Vorgehens-weise sollte gleichzeitig eine Optimierung der FDM-Verstärkungsstrukturen hinsichtlich der dy-namischen Langzeiteigenschaften bei Biege- und Druckbelastungen vorgenommen werden. Des Weiteren sind anhand der Probekörper die auftretenden Bruch- und Rissausbreitungsmechanis-men analysiert worden. Anhand der ermittelten Wöhlerkurven kann die Lebensdauer unter dy-namischer Belastung abgeschätzt werden. Außerdem zeigen die Untersuchungen, dass Fehlstel-len durch eine hohe Strangbreite und Überfüllungen im Bauteil für Schwachstellen in den FDM-Verstärkungsstrukturen sorgen, an denen Risse bei Druckbelastung entstanden sind und sich dadurch schneller ausbreiten konnten.}}, author = {{Moritzer, Elmar and Hirsch, André and Paulus, S.}}, isbn = {{978-3-658-27411-5}}, pages = {{185--198}}, publisher = {{Springer Vieweg}}, title = {{{Rissausbreitungsmechanismen in FDM-Verstärkungsstrukturen unter dynamischer Beanspruchung}}}, doi = {{10.1007/978-3-658-27412-2}}, year = {{2019}}, } @phdthesis{30854, author = {{Bolte, Sven}}, title = {{{Modellierung und Optimierung leistungselektronischer Konverter mit Halbleitern großer Bandlücke unter Verwendung kalorimetrischer Messverfahren}}}, doi = {{10.17619/UNIPB/1-752}}, year = {{2019}}, } @phdthesis{29903, abstract = {{Hochgeschwindigkeitsantriebe kommen unter anderem in Vakuumpumpen, Turboradialverdichtern und Zentrifugen zum Einsatz und zeichnen sich typischerweise durch einen Betrieb mit konstanter Drehzahl über längere Zeiträume aus. Das in dieser Arbeit betrachtete Antriebssystem setzt sich aus einer permanentmagneterregten Synchronmaschine mit magnetgelagertem Rotor, einem LC-Filter, einem Wechselrichter in 2- oder 3-Stufen-Topologie, diverser Sensorik sowie einem Antriebsregler zusammen. In der vorliegenden Arbeit wurden Pulsmusterformen auf viertel- und halbschwingungssymmetrischer Basis ausgewählt und nach relevanten Kriterien wie die Eliminierung niederfrequenter Harmonischer oder die Minimierung des Oberschwingungsgehalts offline-optimiert. Hierzu wurde eine modifizierte Variante der Partikel-Schwarm-Optimierung verwendet. Ziel war die Substitution der trägerbasierten Dreiecksmodulation durch eine geeignete Modulatorstruktur zur Generierung und Ausgabe offline-optimierter Pulsmuster an den Wechselrichter. Im Verlauf der Arbeit wurde zudem herausgestellt, dass die herkömmliche feldorientierte Reglerstruktur nicht mit den optimierten Pulsmustern kombiniert werden kann, was auf die fehlende Pulssymmetrie und die abweichenden Kurzzeitmittelwerte der Schaltsignale von der Stellspannung im aktuellen Reglertakt zurückzuführen ist. Daher wurde eine modellbasierte Reglerstruktur, die zum Teil steuernden Charakter aufweist, entworfen und implementiert. Durchgeführte Messungen an einem Laststand mit einer Bemessungsleistung von 150 kW ergaben im maximal zulässigen Arbeitspunkt gegenüber der dreiecksmodulierten Pulsweitenmodulation eine Steigerung des Gesamtwirkungsgrads von bis zu 0,6% bei Verwendung eines 2-Punkt-Wechselrichters mit ausgangsseitigem LC-Filter. }}, author = {{Peter, Klaus}}, isbn = {{ 978-3-8440-7097-2}}, publisher = {{Shaker Verlag}}, title = {{{Untersuchung des Verlustverhaltens eines geregelten und mit optimierten Pulsmustern gespeisten Hochgeschwindigkeits-Antriebssystems}}}, volume = {{ 9}}, year = {{2019}}, } @phdthesis{30855, author = {{Pape, Thorsten}}, isbn = {{978-3-8440-6952-5 }}, title = {{{Ein Beitrag zur Regelung von Permanentmagnet-Synchronmotoren in Statorflusskoordinaten ohne Rotorlagesensor}}}, year = {{2019}}, } @misc{7720, abstract = {{Die Erfindung betrifft einen optischen Übergang zwischen zwei optischen Schichtwellenleitern. Dazu ist eine Anordnung vorgesehen aus einem ersten optischen Schichtwellenleiter (2) und einem zweiten optischen Schichtwellenleiter (3), wobei der erste optische Schichtwellenleiter (2) und der zweite optische Schichtwellenleiter (3) voneinander verschiedene über ihre jeweilige Länge konstante Dicken (d, r) aufweisen, der erste optische Schichtwellenleiter (2) mit dem zweiten optischen Schichtwellenleiter (3) mittels einer optischen Schichtwellenleiterstruktur (4) verbunden ist, die über ihre gesamte Länge (w) eine Dicke (h) aufweist, die zwischen der Dicke (d) des ersten optischen Schichtwellenleiters (2) und der Dicke (r) des zweiten optischen Schichtwellenleiters (3) liegt. Erfindungsgemäß ist die Dicke (h) der optischen Schichtwellenleiterstruktur (4) über die gesamte Länge (w) der optischen Schichtwellenleiterstruktur (4) konstant. Damit wird eine Möglichkeit für einen effizienten und mit geringen Verlusten behafteten Übergang zwischen zwei optischen Schichtwellenleitern mit unterschiedlicher Dicke bereitgestellt. }}, author = {{Hammer, Manfred and Förstner, Jens and Ebers, Lena}}, keywords = {{tet_topic_waveguides}}, pages = {{9}}, title = {{{Optical transition between two optical waveguides layer and method for transmitting light}}}, year = {{2019}}, } @article{4562, abstract = {{Employing main and sector-specific investment-grade CDS indices from the North American and European CDS market and performing mean-variance out-of-sample analyses for conservative and aggressive investors over the period from 2006 to 2014, this paper analyzes portfolio benefits of adding corporate CDS indices to a traditional financial portfolio consisting of stock and sovereign bond indices. As a baseline result, we initially find an increase in portfolio (downside) risk-diversification when adding CDS indices, which is observed irrespective of both CDS markets, investor-types and different sub-periods, including the global financial crisis and European sovereign debt crisis. In addition, the analysis reveals higher portfolio excess returns and performance in CDS index portfolios, however, these effects clearly differ between markets, investor-types and sub-periods. Overall, portfolio benefits of adding CDS indices mainly result from the fact that institutional investors replace sovereign bond indices rather than stock indices by CDS indices due to better risk-return characteristics. Our baseline findings remain robust under a variety of robustness checks. Results from sensitivity analyses provide further important implications for institutional investors with a strategic focus on a long-term conservative portfolio management.}}, author = {{Hippert, Benjamin and Uhde, André and Wengerek, Sascha Tobias}}, journal = {{Review of Derivatives Research }}, keywords = {{Corporate credit default swap indices, Mean-variance asset allocation, Out-of-sample portfolio optimization, Portfolio risk-diversification, Portfolio performance evaluation}}, number = {{2}}, pages = {{203--259}}, title = {{{Portfolio Benefits of Adding Corporate Credit Default Swap Indices: Evidence from North America and Europe}}}, doi = {{https://doi.org/10.1007/s11147-018-9148-8}}, volume = {{22}}, year = {{2019}}, } @inbook{30955, author = {{Lammer, Christina}}, booktitle = {{Naar het onbekende: Perspectieven op literatuur, cultuur en kennis}}, editor = {{van der Meer, Anne-Fleur and Schrover, Wouter and Moser, Nelleke}}, pages = {{81 -- 91}}, title = {{{'De triomf van de mens’ – kennis in 'Geschiedenis van een berg'}}}, year = {{2019}}, } @inproceedings{31067, author = {{Guettatfi, Zakarya and Platzner, Marco and Kermia, Omar and Khouas, Abdelhakim}}, booktitle = {{2019 IEEE International Parallel and Distributed Processing Symposium Workshops (IPDPSW)}}, publisher = {{IEEE}}, title = {{{An Approach for Mapping Periodic Real-Time Tasks to Reconfigurable Hardware}}}, doi = {{10.1109/ipdpsw.2019.00027}}, year = {{2019}}, } @inbook{31752, author = {{Willeke, Stephanie}}, booktitle = {{Hass/Literatur. Literatur- und kulturwissenschaftliche Beiträge zu einer Theorie- und Diskursgeschichte}}, editor = {{Brokoff , Jürgen and Walter-Jochum, Robert }}, pages = {{355--377}}, publisher = {{transcript }}, title = {{{Konstruktionen des Terrors. Zur Hassrede in den Romanen Jenseits von Deutschland von George Tenner und Das dunkle Schiff von Sherko Fatah}}}, year = {{2019}}, } @inbook{31746, author = {{Willeke, Stephanie}}, booktitle = {{Zwischen den Sprachen – Mit der Sprache? Deutschsprachige Literatur in Palästina und Israel}}, editor = {{Willeke, Stephanie and Eke, Norbert Otto}}, pages = {{251--270}}, publisher = {{Aisthesis }}, title = {{{„So kommt doch alles noch zum Happy End.“ Sammy Gronemanns zionistische Komödie Der Prozess um des Esels Schatten}}}, year = {{2019}}, } @inbook{31756, author = {{Willeke, Stephanie}}, booktitle = {{Das Politische in der Literatur der Gegenwart}}, editor = {{Neuhaus , Stefan and Nover, Immanuel }}, pages = {{433--450}}, publisher = {{de Gruyter}}, title = {{{Der eingehegte Terrorist? Dorothea Dieckmanns Guantánamo}}}, year = {{2019}}, } @inbook{31809, author = {{Ballweg, Sandra}}, booktitle = {{Portfolioarbeit im Kontext von Sprachenunterricht. Neue internationale Entwicklungen}}, editor = {{Ballweg, Sandra and Kühn, Bärbel}}, pages = {{191--210}}, publisher = {{Universitätsdrucke Göttingen}}, title = {{{Portfolioarbeit als Professionalisierungsgelegenheit}}}, year = {{2019}}, } @inbook{32003, author = {{Ballweg, Sandra and Riemer, Claudia}}, booktitle = {{Dhoch3-Studienmodule Deutsch als Fremdsprache}}, title = {{{Das Verhältnis zwischen Fremdsprachenerwerbsforschung und Fremdsprachenunterricht - Einführung in das Themenfeld}}}, doi = {{10.31816/Dhoch3.2019.87}}, year = {{2019}}, } @inbook{32011, author = {{Ballweg, Sandra and Introna, Silvia and Riemer, Claudia}}, booktitle = {{Dhoch3-Studienmodule Deutsch als Fremdsprache}}, title = {{{Theorien und Hypothesen für den L2-Erwerb - Einführung in das Themenfeld}}}, doi = {{10.31816/Dhoch3.2018.81}}, year = {{2019}}, } @unpublished{16711, abstract = {{Embedding techniques allow the approximations of finite dimensional attractors and manifolds of infinite dimensional dynamical systems via subdivision and continuation methods. These approximations give a topological one-to-one image of the original set. In order to additionally reveal their geometry we use diffusion mapst o find intrinsic coordinates. We illustrate our results on the unstable manifold of the one-dimensional Kuramoto--Sivashinsky equation, as well as for the attractor of the Mackey-Glass delay differential equation.}}, author = {{Gerlach, Raphael and Koltai, Péter and Dellnitz, Michael}}, booktitle = {{arXiv:1902.08824}}, title = {{{Revealing the intrinsic geometry of finite dimensional invariant sets of infinite dimensional dynamical systems}}}, year = {{2019}}, } @inproceedings{32089, author = {{Häsel-Weide, Uta and Nührenbörger, M.}}, booktitle = {{Proceedings of the Third International Conference on Mathematics Textbook Research an Development}}, editor = {{Rezat, Sebastian and Fan, L. and Hattermann, M. and Schumacher, J. and Wuschke, H.}}, pages = {{185--190}}, title = {{{Materials für inclusive mathematics education - Design principles an practices.}}}, year = {{2019}}, } @article{32090, author = {{Breucker, T. and Freesemann, O. and Häsel-Weide, Uta and Opitz, E. M. and Nührenbörger, M. and Wittich, C.}}, journal = {{Zeitschrift für Heilpädagogik}}, number = {{70}}, pages = {{316--326}}, title = {{{Fördern im inklusiven Mathematikunterricht im Spannungsfeld zwischen gemeinsamen Lernsituationen und gezielter Förderung.}}}, year = {{2019}}, } @misc{32091, author = {{Häsel-Weide, Uta and Nührenbörger, M. and Reinold, M.}}, isbn = {{978-3122009946}}, pages = {{80}}, publisher = {{Klett}}, title = {{{Das Zahlenbuch 4. Förderheft}}}, year = {{2019}}, } @misc{31954, author = {{Häsel-Weide, Uta and Nührenbörger, M. and Reinold, M.}}, isbn = {{ 978-3-12-200998-4}}, pages = {{144}}, publisher = {{Klett}}, title = {{{Das Zahlenbuch. Förderkommentar Lernen zum 4. Schuljahr}}}, year = {{2019}}, } @misc{18734, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete }}, title = {{{Wille, Matthias, "Gottlob Frege. Begriffsschrift, eine der arithmetischen nachgebildete Formelsprache des reinen Denkens", Springer Spektrum: Berlin 2018 (Klassische Texte der Wissenschaft)}}}, year = {{2019}}, } @misc{18736, author = {{Peckhaus, Volker}}, booktitle = {{Zentralblatt für Mathematik und ihre Grenzgebiete}}, title = {{{Honerkamp, Josef, "Denken in Strukturen und seine Geschichte. Von der Kraft des mathematischen Beweises", Springer: Berlin 2018}}}, year = {{2019}}, } @inbook{32202, author = {{Ptashnyk, Stefaniya}}, booktitle = {{Dimensionen des sprachlichen Raums: Variation - Mehrsprachigkeit - Konzeptualisie-rung (Schriften zur deutschen Sprache in Österreich)}}, editor = {{Bülow, Lars and Fischer, Ann Kathrin and Herbert, Kristina }}, pages = {{213–232}}, publisher = {{Peter Lang Verlag}}, title = {{{Borrowing, Code-Switching and Fused Lects: Language Contact and Multilingual Prac-tices from a Socio-Historical Perspective}}}, volume = {{45}}, year = {{2019}}, } @inbook{32253, author = {{Ptashnyk, Stefaniya}}, booktitle = {{Mediale Selbstreferenzen}}, editor = {{Tancer, Josef }}, pages = {{19–54}}, publisher = {{new academic press}}, title = {{{Mediale (Selbst-)Referenzen in der galizischen Presse des 19. Jahrhunderts: „Gazeta Lwowska“ und „Lemberger Zeitung“ im Vergleich}}}, year = {{2019}}, } @misc{32257, author = {{Ptashnyk, Stefaniya and Falkson, Katharina and Lemberg, Ingrid}}, booktitle = {{HSozKult (online unter https://www.hsozkult.de/conferencereport/id/tagungsberichte-8281)}}, title = {{{„Stadtrechte und Stadtrechtsreformationen“. Tagung an der Heidelberger Akademie der Wissenschaften vom 03.04.2019 – 05.04.2019. Tagungsbericht}}}, year = {{2019}}, }