@misc{34732, author = {{Moritzer, Elmar and Scholle, Maximilian and Tölle, Lisa and Bomm, J.}}, booktitle = {{RFP Rubber Fibres Plastics}}, issn = {{1863-7116}}, title = {{{Influence of process parameter on fiber quality during fiber recycling through thermal fiber recovery}}}, year = {{2022}}, } @misc{34729, author = {{Moritzer, Elmar and Scholle, Maximilian and Tölle, Lisa and Bomm, J.}}, booktitle = {{GAK - Gummi Fasern Kunststoffe}}, title = {{{Einfluss der Prozessführung auf die Faserqualität beim Faserrecycling mittels thermischer Faserrückgewinnung}}}, year = {{2022}}, } @inproceedings{34730, author = {{Schöppner, Volker and Kleinschmidt, Dennis}}, location = {{Hannover}}, title = {{{Estimation and correction of non-isothermal effects of carbon black-filled rubber compounds in viscosity measurements}}}, year = {{2022}}, } @inproceedings{34731, author = {{Moritzer, Elmar and Richters, Maximilian}}, location = {{Fukuoka}}, title = {{{Filling and Flow Behavior of Novel Wood-Filled Thermoplastic Elastomers}}}, year = {{2022}}, } @inproceedings{34738, author = {{Schöppner, Volker and Kleinschmidt, Dennis and Hopmann, C. and Limper, A. and Fey, F. and Facklam, M. and Schön, M.}}, location = {{Aachen}}, title = {{{Investigations on the Influence of Viscoelasticity on the Swell Behaviour and Flow Instabilities of Carbon Black-Filled Rubber Compounds}}}, year = {{2022}}, } @inproceedings{34735, author = {{Schöppner, Volker and Brüning, Florian}}, location = {{Fukuoka}}, title = {{{Investigating Different Methods for Numerical Simulation of Temperature Development in a Feed Section of a Single-Screw Extruder}}}, year = {{2022}}, } @inproceedings{34734, author = {{Schöppner, Volker and Köllermeier, Jonas}}, location = {{Fukuoka}}, title = {{{Integration of IR Based Inline Measurement Systems of the Surface Temperature of Square Hollow Profiles in an Extrusion Process}}}, year = {{2022}}, } @inproceedings{34737, author = {{Schöppner, Volker and Frank, Maximilian}}, location = {{Fukuoka}}, title = {{{Investigation of the Pressure-Throughput Behavior of Different Spiral Shearing Sections on an Analytical and Simulative Basis}}}, year = {{2022}}, } @inproceedings{34740, author = {{Schöppner, Volker and Altepeter, Matthias and Wanke, S.}}, location = {{Fukuoka}}, title = {{{Modelling of the material degradation of polypropylene on the co-rotating twin-screw extruder}}}, year = {{2022}}, } @misc{34752, author = {{Schöppner, Volker and Kleinschmidt, Dennis and Nillius, U. and Hopmann, C.}}, booktitle = {{GAK}}, title = {{{Weiterentwicklung eines Verfahrens zur Korrektur von Wandgleiteffekten im Rahmen rheologischer Messungen an gefüllten Kautschukmischungen}}}, year = {{2022}}, } @techreport{34741, author = {{Moritzer, Elmar and Kröker, M. and Scholle, Maximilian}}, issn = {{2699-4534}}, title = {{{Rückführung zerkleinerter Organobleche}}}, year = {{2022}}, } @techreport{34746, author = {{Hopp, Matthias and Tölle, Lisa}}, title = {{{Teilchen-Kunde - Stäube beim mechanischen Recycling faserverstärkter Thermoplaste}}}, year = {{2022}}, } @inproceedings{34751, author = {{Schall, Christoph Wilhelm Theodor}}, location = {{Duisburg}}, title = {{{Vorteilhaftes Prozessverhalten von Wave-Schnecken}}}, year = {{2022}}, } @article{33250, author = {{Szopinski, Daniel and Massa, Lorenzo and John, Thomas and Kundisch, Dennis and Tucci, Christopher}}, journal = {{Communications of the Association for Information Systems}}, pages = {{774--841}}, title = {{{Modeling Business Models: A cross-disciplinary Analysis of Business Model Modeling Languages and Directions for Future Research}}}, volume = {{51}}, year = {{2022}}, } @article{34792, author = {{Glöckner, Helge}}, issn = {{2070-0466}}, journal = {{p-Adic Numbers, Ultrametric Analysis, and Applications}}, keywords = {{20Exx, 22Exx, 32Cxx}}, number = {{2}}, pages = {{138–144}}, title = {{{Non-Lie subgroups in Lie groups over local fields of positive characteristic}}}, doi = {{10.1134/S2070046622020042}}, volume = {{14}}, year = {{2022}}, } @article{34791, author = {{Glöckner, Helge and Schmeding, Alexander}}, issn = {{0232-704X}}, journal = {{Annals of Global Analysis and Geometry}}, keywords = {{58D15, 22E65, 26E15, 26E20, 46E40, 46T20, 58A05}}, number = {{2}}, pages = {{359–398}}, title = {{{Manifolds of mappings on Cartesian products}}}, doi = {{10.1007/s10455-021-09816-y}}, volume = {{61}}, year = {{2022}}, } @article{34796, abstract = {{We prove various results in infinite-dimensional differential calculus that relate the differentiability properties of functions and associated operator-valued functions (e.g., differentials). The results are applied in two areas: (1) in the theory of infinite-dimensional vector bundles, to construct new bundles from given ones, such as dual bundles, topological tensor products, infinite direct sums, and completions (under suitable hypotheses); (2) in the theory of locally convex Poisson vector spaces, to prove continuity of the Poisson bracket and continuity of passage from a function to the associated Hamiltonian vector field. Topological properties of topological vector spaces are essential for the studies, which allow the hypocontinuity of bilinear mappings to be exploited. Notably, we encounter kR-spaces and locally convex spaces E such that E×E is a kR-space.}}, author = {{Glöckner, Helge}}, issn = {{2075-1680}}, journal = {{Axioms}}, number = {{5}}, title = {{{Aspects of differential calculus related to infinite-dimensional vector bundles and Poisson vector spaces}}}, doi = {{10.3390/axioms11050221}}, volume = {{11}}, year = {{2022}}, } @unpublished{34804, abstract = {{Starting with a finite-dimensional complex Lie algebra, we extend scalars using suitable commutative topological algebras. We study Birkhoff decompositions for the corresponding loop groups. Some results remain valid for loop groups with valued in complex Banach-Lie groups.}}, author = {{Glöckner, Helge}}, booktitle = {{arXiv:2206.11711}}, title = {{{Birkhoff decompositions for loop groups with coefficient algebras}}}, year = {{2022}}, } @inproceedings{34811, author = {{Wippermann, Jan and Meschut, Gerson and Koschukow, Wikentji and Liebsch, Alexander and Gude, Maik and Kolbe, Björn and Minch, Steven}}, booktitle = {{IIW2022, Annual Assembly, Commission III}}, title = {{{Thermal influence of resistance spot welding on nearby overmoulded plastic metal joints}}}, year = {{2022}}, } @inproceedings{34725, author = {{Moritzer, Elmar and Held, Christian}}, location = {{Tokyo}}, title = {{{Characterization of additively manufactured plastic components for direct screwing}}}, year = {{2022}}, } @inproceedings{34810, author = {{Wippermann, Jan and Meschut, Gerson and Stepputat, Marten and Flügge, Wilko}}, booktitle = {{12. Gemeinsames Kolloquium zur Mechanischen Fügetechnik}}, title = {{{Flexible Teilautomatisierung des robotergestützten mechanischen Fügens}}}, year = {{2022}}, } @misc{33291, author = {{Moritzer, Elmar and Rauen, Dennis}}, booktitle = {{Kunststoffe}}, pages = {{79--81}}, title = {{{Plasmaaktivierung fehlgeschlagen!}}}, year = {{2022}}, } @article{32877, author = {{Gaidai, Roman and Gölz, Christian Johannes and Mora, K. and Rudisch, J. and Reuter, E.-M. and Godde, B. and Reinsberger, C. and Voelcker-Rehage, C. and Vieluf, S.}}, issn = {{0006-8993}}, journal = {{Brain Research}}, keywords = {{Developmental Biology, Neurology (clinical), Molecular Biology, General Neuroscience}}, publisher = {{Elsevier BV}}, title = {{{Classification characteristics of fine motor experts based on electroencephalographic and force tracking data}}}, doi = {{10.1016/j.brainres.2022.148001}}, volume = {{1792}}, year = {{2022}}, } @article{33743, author = {{Zierau, Cornelia and Jung, Ulla}}, journal = {{Fördermagazin: Berufsbezogene Sprachbildung und Sprachförderung Heft 3/2022 }}, pages = {{3--6}}, title = {{{Berufsvorbereitende Sprachförderung. Wie werden Schülerinnen und Schüler fit für den Beruf?}}}, volume = {{3}}, year = {{2022}}, } @book{33800, editor = {{Zierau, Cornelia}}, title = {{{Fördermagazin: Berufsbezogene Sprachbildung und Sprachförderung Heft 3/2022 }}}, year = {{2022}}, } @inbook{33744, author = {{Zierau, Cornelia}}, booktitle = {{Adoleszenz und Alterität. Synergien aktueller Ansätze der interkulturellen Literaturwissenschaft und Literaturdidaktik. (im Druck)}}, editor = {{Osthues, Julian and Pavlik, Jennifer}}, location = {{Bremen}}, pages = {{101--121}}, publisher = {{Universitätsverlag Winter}}, title = {{{Inszenierungen von Adoleszenz und Alterität in Wolfgang Herrndorfs Roman „Tschick“}}}, year = {{2022}}, } @article{34876, author = {{Dressler, Falko and Chiasserini, Carla Fabiana and Fitzek, Frank H. P. and Karl, Holger and Lo Cigno, Renato and Capone, Antonio and Casetti, Claudio Ettore and Malandrino, Francesco and Mancuso, Vincenzo and Klingler, Florian and Rizzo, Gianluca A.}}, journal = {{IEEE Network}}, number = {{3}}, pages = {{24–31}}, publisher = {{IEEE}}, title = {{{V-Edge: Virtual Edge Computing as an Enabler for Novel Microservices and Cooperative Computing}}}, doi = {{10.1109/MNET.001.2100491}}, volume = {{36}}, year = {{2022}}, } @article{34883, author = {{Diester, Michel}}, journal = {{Rabbit Eye - Zeitschrift für Filmforschung, 013}}, number = {{013}}, title = {{{Oddly satisfying und die Genugtuung der Anschaulichkeit}}}, year = {{2022}}, } @article{13147, abstract = {{Employing a unique and hand-collected sample of 648 true sale loan securitization transactions issued by 57 stock-listed banks across the EU-12 plus Switzerland over the period from 1997 to 2010, this paper empirically analyzes the relationship between true sale loan securitization and the issuing banks’ non-performing loans to total assets ratios. Overall, we provide evidence for a negative impact of securitization on NPL exposures suggesting that banks predominantly used securitization as an instrument of credit risk transfer and diversification. In addition, the analysis at hand reveals a time-sensitive relationship between securitization and NPL exposures. While we observe an even stronger NPL-reducing effect through securitization during the non-crisis periods, the effect reverses during and after the global financial crisis suggesting that banks were forced to provide credit enhancement and employ securitization as a funding management tool. Along with the results from a variety of sensitivity analyses our study provides important implications for the recent debate on reducing NPL exposures of European banks by revitalizing the European securitization market.}}, author = {{Wengerek, Sascha Tobias and Hippert, Benjamin and Uhde, André}}, journal = {{The Quarterly Review of Economics and Finance}}, keywords = {{European Banking, Non-performing Loans, Securitization}}, pages = {{48--64}}, publisher = {{Elsevier}}, title = {{{Risk allocation through securitization – Evidence from non-performing loans}}}, doi = {{https://doi.org/10.1016/j.qref.2022.06.005}}, volume = {{Vol. 86 (11)}}, year = {{2022}}, } @inbook{35061, author = {{Süßmann, Johannes}}, booktitle = {{Gründung und Aufbau der Universität Münster, 1773–1818. Zwischen katholischer Aufklärung, französischen Experimenten und preußischem Neuanfang}}, editor = {{Overhoff, Jürgen and Happ, Sabine}}, pages = {{87–107}}, publisher = {{Aschendorff}}, title = {{{Franz von Fürstenbergs Konzeption der Universität Münster als aufgeklärte Überbietung Paderborns}}}, volume = {{16}}, year = {{2022}}, } @misc{35060, author = {{Büttner, Nils and Süßmann, Johannes}}, booktitle = {{Handbuch Idylle. Verfahren – Traditionen – Theorien}}, editor = {{Gerstner, Jan and Heller, Jakob C. and Schmitt, Christian}}, isbn = {{978-3-476-05864-5}}, pages = {{129–135}}, publisher = {{J.B. Metzler}}, title = {{{[Art.] Idylle und Natur in Aufklärung und Empfindsamkeit}}}, doi = {{https://doi.org/10.1007/978-3-476-05865-2_19}}, year = {{2022}}, } @misc{35067, author = {{Süßmann, Johannes}}, title = {{{Gegenreformation und verpaßte Aufklärung. Die Gründung der Academia Theodoriana 1614 und ihre Entwicklung im 17. und 18. Jahrhundert. Videographierter Vortrag für die Ringvorlesung zum fünfzigjährigen Bestehen der Gesamthochschule Paderborn am 13. April 2022 in Paderborn}}}, year = {{2022}}, } @article{30626, abstract = {{Clinching is a very cost-efficient method for joining two or more sheets made of identical or different materials. However, the current evaluation methods cannot confirm the critical geometrical features of joints such as neck thickness, undercut, and bottom thickness. Furthermore, the effects caused by joining process such as elastic deformation and crack-closure are significant for the joining quality, but often earn insufficient attention. Therefore, computed tomography (CT) and Transient Dynamic Analysis (TDA) as an ultrasonic testing and evaluation procedure are combined to overcome the obstacles mentioned above. In order to have a well-defined and reproducible typical geometrical error in clinching, specimens with a pre-specified lateral offset of the punch with 0.1 mm, 0.2 mm are as well as with no lateral offset are investigated using CT. The specimens are treated with conductive copper varnish in varying intensities to support the two sheets' distinguishability in the CT measurement. The subsequently extracted surfaces from CT-scan data are used to create three-dimensional models for a numerical Transient Dynamic Analysis. Hereby, a harmonic force is applied to one sheet and the transferred energy is determined at the opposite side of the clinch point on the other sheet. The transmitted energy can be used as a quantitative measure for the joining quality. This setup is simulated by means of Finite-Element-Method and the specimens are investigated experimentally using a piezo actuator and a piezo sensor. The novelty of the results presented here is the completely non-destructive investigation of joint specimen by CT of similar materials with a contrast given foil in between the sheets and the subsequent TDA, which can easily detect difference between the specimens by evaluation of the energy dissipation of the joints.}}, author = {{Köhler, D. and Sadeghian, B. and Troschitz, J. and Kupfer, R. and Gude, M. and Brosius, A.}}, journal = {{Journal of Advanced Joining Processes}}, pages = {{100089}}, title = {{{Characterisation of lateral offsets in clinch points with computed tomography and transient dynamic analysis}}}, doi = {{10.1016/j.jajp.2021.100089}}, volume = {{5}}, year = {{2022}}, } @article{30625, abstract = {{Continuous fiber reinforced thermoplastics (CFRT)/steel hybrid parts offer promising properties and possibilities, which can exceed the capabilities of both individual materials. In this case, the joining operation presents the main challenge. This paper studies the direct pin pressing where metallic pins with undercutting geometries, protruding from the metal component, are inserted into a locally infrared heated CFRT component. The aim is to investigate the joining process with a focus on the filling of the undercut features with matrix and fibers to create a primarily form-fitting joint. For good mechanical properties of the joint, it is crucial, that the undercutting features are filled and do not lead to significant deconsolidations. The pin structures are manufactured from 42CrMo4 steel on a cnc-lathe and are joined via welding with HCT600+Zn sheet metal. The CFRT samples are manufactured from polypropylene and approximately 45% vol. unidirectional glass fibers. In the scope of this study, different pin geometries are joined with varying process settings and micro sections of the joints are investigated via reflected light microscopy. It could be shown that the undercuts can be completely filled with matrix and fiber material using the described process route. Based on the optical investigations a suitable setting of joining parameters is defined and lap shear as well as cross head samples are manufactured and experimentally tested. It could be seen that independently from the pin geometry the lap shear strength was primarily limited due to shear failure of the pin structures and it is assumed that the base diameter and pin strength predominantly determine the joint strength. Cross head samples failed due to pin extraction. Here, a significant increase of the joint strength with undercutting features could be shown in comparison to cylindrical reference pins.}}, author = {{Popp, J. and Drummer, D.}}, journal = {{Journal of Advanced Joining Processes}}, pages = {{100084}}, title = {{{Joining of continuous fiber reinforced thermoplastic/steel hybrid parts via undercutting pin structures and infrared heating}}}, doi = {{10.1016/j.jajp.2021.100084}}, volume = {{5}}, year = {{2022}}, } @article{30624, abstract = {{In addition to brazing and welding processes, mechanical joining processes such as clinching are increasingly being used. Clinch joints offer an advantage over metallurgical joining processes by giving the possibility of joining different material combinations without typical drawbacks. Thereby clinching offers an enormous advantage for lightweight construction. An additional benefit is a great variability in the geometric shapes of the toolsets, which ensure optimum adaptation of the clinching process on variations of the joining elements such as e.g. the sheet thickness. However, the vast variability is also one of the major challenges regarding the prediction of the joint reliability. In the work presented, the effect of different toolset geometries was investigated with a particular focus on the interaction between geometrical features and deformation-induced microstructural changes. Light optical and electron microscopy techniques, as well as micro-hardness measurements, were performed. The results were evaluated and discussed concerning the material's deformation behavior, the change in geometrical shape and the microstructural evolution due to the different tool geometries. The findings point out the main influence factors regarding the mechanical properties in general and the fatigue behavior in particular.}}, author = {{Ewenz, L. and Kuczyk, M. and Zimmermann, M.}}, journal = {{Journal of Advanced Joining Processes}}, title = {{{Effect of the tool geometry on microstructure and geometrical features of clinched aluminum}}}, doi = {{10.1016/j.jajp.2021.100091}}, volume = {{5}}, year = {{2022}}, } @article{30622, author = {{Gröger, B. and Würfel, V. and Hornig, A. and Gude, M.}}, journal = {{Journal of Advanced Joining Processes}}, title = {{{Forming process induced material structure of fibre-reinforced thermoplastics - Experimental and numerical investigation of a bladder-assisted moulding process}}}, doi = {{10.1016/j.jajp.2022.100100}}, volume = {{5}}, year = {{2022}}, } @article{30717, abstract = {{To achieve the climate objectives, various measures are taken to increase the efficiency of raw materials and energies used. A sector with a large proportion of the global consumption of resources is the mobility sector. To increase the efficiency in this field, large efforts are made to reduce the weight of moving masses. One approach is the use of multi-material systems, which utilises different materials and their specific properties depending on the local requirements. Multi-material systems consist often of materials which differ in strength and density, for example, high-strength steels, aluminium alloys or polymers. Additionally, such a system can utilise different geometries of the components to be joined, characterised for example by varying sheet thicknesses. A central challenge of producing these systems is the joining of the individual components. This requires robust joining processes capable of covering the entire spectrum of possible variants and is feasible for different physical properties of the materials. Since conventional joining processes are rather rigid and have difficulty reacting to changing process and disturbance variables, new joining processes are necessary. With the objective of being able to react versatile to varying parameters, a process combination consisting of a semi-tubular self-piercing riveting process and orbital forming process with adjustable tumbling kinematic is introduced. Due to the process combination of tumbling and self-piercing riveting, mutual influences of the two process components are analysed in regard to material flow and process forces. Further, the investigations show the influence of a varying tumbling angle on the joining process itself and how the characteristic properties undercut, rivet head end position and residual sheet thickness of the joint are affected. The material used for the joining partners is an aluminium alloy EN AW-6014 typical for multi-material systems in the automotive industry and the rivets are from type Rivset C produced by the Böllhoff company.}}, author = {{Wituschek, S. and Lechner, M.}}, journal = {{Production Engineering}}, title = {{{Investigation of the influence of the tumbling angle on a tumbling self-piercing riveting process}}}, doi = {{10.1177/14644207221080068}}, year = {{2022}}, } @article{30629, abstract = {{Clinching is a joining process that is becoming more and more important in industry due to the increasing use of multi-material designs. Despite the already widespread use of the process, there is still a need for research to understand the mechanisms and design of clinched joints. In contrast to the tool parameters, process and material disturbances have not yet been investigated to a relatively large extent. However, these also have a great influence on the properties and applicability of clinching. The effect of process disturbances on the clinched joint are investigated with numerical and experimental methods. The investigated process variations are the history of the sheets using the pre-hardening of the material, different sheet thicknesses, sheet arrangements and punch strokes. For the consideration of the material history, a specimen geometry for pre-stretching specimens in uniaxial tension is used, from which the pre-stretched secondary specimens are taken. A finite element model is set up for the numerical investigations. Suitable clinching tools are selected. With the simulation, selected process influences can be examined. The effort of the numerical investigations is considerably reduced with the help of a statistical experimental design according to Taguchi. To confirm the simulation results, experimental investigations of the clinch point geometry by using micrographs and the shear strength of the clinched joint are performed. The analysis of the influence of difference disturbance factors on the clinching process demonstrate the importance of the holistic view of the clinching process.}}, author = {{Steinfelder, C. and Acksteiner, J. and Guilleaume, C. and Brosius, A.}}, journal = {{Production Engineering}}, title = {{{Analysis of the interactions between joint and component properties during clinching}}}, doi = {{10.1007/s11740-021-01102-x}}, year = {{2022}}, } @article{30640, abstract = {{Surface determination is an essential step of the measurement process in industrial X-ray computed tomography (XCT). The starting point of the surface determination process step is a single grey value threshold within a voxel volume in conventional surface determination methods. However, this value is not always found in the reconstructed volume in the local environment of the surface of the measurement object due to various artefacts, so that none or incorrect surfaces are determined. In order to find surfaces independently of a single grey value, a three-dimensional approach of the initial contour determination based on a Prewitt edge detection algorithm is presented in this work. This method is applied to different test specimens and specimen compositions which, due to their material or material constellation, their geometric properties with regard to surfaces and interfaces as well as their calibrated size and length dimensions, embody relevant properties in the examination of joining connections. It is shown that by using the surface determination method in the measurement process, both a higher metrological structure resolution and interface structure resolution can be achieved. Surface artefacts can be reduced by the application and it is also an approach to improved surface finding for the multi-material components that are challenging for XCT.}}, author = {{Busch, M. and Hausotte, T.}}, journal = {{Production Engineering}}, title = {{{Application of an edge detection algorithm for surface determination in industrial X-ray computed tomography}}}, doi = {{10.1007/s11740-021-01100-z}}, year = {{2022}}, } @article{30628, abstract = {{The work carried out is based on the thesis properties of clinched joints are determined by the proportions of binding mechanisms form-closure, force-closure and material-closure. To describe the acting binding mechanisms and thus to derive the joint properties, detailed knowledge of the local effect of the individual binding mechanisms is necessary to ensure their targeted adjustment by the joining process. The targeted setting of different proportions of the binding mechanisms is achieved firstly via tool geometry and secondly via surface condition of the joined parts. An introduced form-closure component can be quantified by metallographic cross section with subsequent measurement of the quality-determining parameters such as undercut, penetration depth and neck thickness. To qualify the force-closure component, a torsional load can be applied mechanically at rotationally symmetrical clinch joints. This also allows the influence of different surface conditions on the tribological system to be quantified. Measurement of electrical resistance can reveal the binding mechanisms of force- and material-closure. These investigations are carried out on an aluminum joining part combination of the same type. As a result of these investigations, the clinched joints can be designed according to the load occurring in the later life cycle in the form of an optimum and compromise variant with regard to minimum loads to be transmitted mechanically, electrically with regard to low resistance or manufacturing with minimum energy input.}}, author = {{Kalich, J. and Füssel, U.}}, journal = {{Production Engineering}}, title = {{{Design of clinched joints on the basis of binding mechanisms}}}, doi = {{10.1007/s11740-022-01108-z}}, year = {{2022}}, } @article{30627, abstract = {{Additive plasticity in the logarithmic strain space is compared to multiplicative plasticity for various loading cases including coaxial and non-coaxial plastic deformations. Even though both finite plasticity approaches are based on total Lagrangian descriptions, the former is popular due to its inherent similarity to the infinitesimal theory and its easy extensibility. However, since its introduction several limitations of additive plasticity in the logarithmic strain space have been discovered. In this study, these problems such as stress rotation and softening are considered, revealing that fundamental differences compared to multiplicative plasticity occur for non-coaxial plastic deformations. We focus in particular on the observed softer response of the additive based approach, which is analysed in depth using three numerical examples including two well-known benchmarks for finite plasticity. By means of these finite element simulations the softer and possibly even localising response of additive plasticity in the logarithmic strain space is confirmed.}}, author = {{Friedlein, J. and Mergheim, J. and Steinmann, P.}}, journal = {{International Journal of Solids and Structures}}, pages = {{111416}}, title = {{{Observations on additive plasticity in the logarithmic strain space at excessive strains}}}, doi = {{10.1016/j.ijsolstr.2021.111416}}, volume = {{239-240}}, year = {{2022}}, } @article{29182, author = {{Chang, M. and Büchel, Daniel and Reinecke, K. and Lehmann, T. and Baumeister, Jochen}}, issn = {{0953-816X}}, journal = {{European Journal of Neuroscience}}, keywords = {{General Neuroscience}}, publisher = {{Wiley}}, title = {{{Ecological Validity in Exercise Neuroscience Research: A Systematic Investigation}}}, doi = {{10.1111/ejn.15595}}, year = {{2022}}, } @inproceedings{29220, abstract = {{Modern services often comprise several components, such as chained virtual network functions, microservices, or machine learning functions. Providing such services requires to decide how often to instantiate each component, where to place these instances in the network, how to chain them and route traffic through them. To overcome limitations of conventional, hardwired heuristics, deep reinforcement learning (DRL) approaches for self-learning network and service management have emerged recently. These model-free DRL approaches are more flexible but typically learn tabula rasa, i.e., disregard existing understanding of networks, services, and their coordination. Instead, we propose FutureCoord, a novel model-based AI approach that leverages existing understanding of networks and services for more efficient and effective coordination without time-intensive training. FutureCoord combines Monte Carlo Tree Search with a stochastic traffic model. This allows FutureCoord to estimate the impact of future incoming traffic and effectively optimize long-term effects, taking fluctuating demand and Quality of Service (QoS) requirements into account. Our extensive evaluation based on real-world network topologies, services, and traffic traces indicates that FutureCoord clearly outperforms state-of-the-art model-free and model-based approaches with up to 51% higher flow success ratios.}}, author = {{Werner, Stefan and Schneider, Stefan Balthasar and Karl, Holger}}, booktitle = {{IEEE/IFIP Network Operations and Management Symposium (NOMS)}}, keywords = {{network management, service management, AI, Monte Carlo Tree Search, model-based, QoS}}, location = {{Budapest}}, publisher = {{IEEE}}, title = {{{Use What You Know: Network and Service Coordination Beyond Certainty}}}, year = {{2022}}, } @article{29296, author = {{Schmolke, Tobias and Krüger, Christopher and Merdivan, David and Meschut, Gerson}}, journal = {{ATZ worldwide}}, number = {{1}}, pages = {{66--71}}, title = {{{Weight-optimized Battery Housings for Volume Vehicles}}}, doi = {{https://doi.org/10.1007/s38311-021-0766-7}}, volume = {{124}}, year = {{2022}}, } @inproceedings{29342, author = {{Sander, Sascha and Teutenberg, Dominik and Meschut, Gerson and Kötz, Fabian and Matzenmiller, Anton and Kasper, Yann and Ummenhofer, Thomas}}, booktitle = {{22. Kolloquium Gemeinsame Forschung in der Klebtechnik}}, location = {{Online Konferenz}}, title = {{{Methodenentwicklung zur rechnerischen Auslegung geklebter Stahlverbindungen unter Alterungsbeanspruchung im Stahl- und Anlagenbau }}}, year = {{2022}}, } @article{21571, abstract = {{The paper investigates the impact of individual attention on investor risk-taking. We analyze a large sample of trading records from a brokerage service that allows its customers to trade contracts-for-differences (CFD), and sends standardized push messages on recent stock performance to its client investors. The advantage of this sample is that it allows us to isolate the "push" messages as individual attention triggers, which we can directly link to the same individuals' risk-taking. A particular advantage of CFD trading is that it allows investors to make use of leverage, which provides us a pure measure of investors' willingness to take risks that is independent of the decision to purchase a particular stock. Leverage is a major catalyst of speculative trading, as it increases the scope of extreme returns, and enables investors to take larger positions than what they can afford with their own capital. We show that investors execute attention-driven trades with higher leverage, compared to their other trades, as well as those of other investors who are not alerted by attention triggers.}}, author = {{Arnold, Marc and Pelster, Matthias and Subrahmanyam, Marti G.}}, journal = {{Journal of Financial Economics}}, number = {{2}}, pages = {{ 846--875}}, title = {{{Attention triggers and investors' risk-taking}}}, doi = {{10.1016/j.jfineco.2021.05.031}}, volume = {{143}}, year = {{2022}}, } @inproceedings{29302, abstract = {{This paper introduces the project Scale4Edge. The project is focused on enabling an effective RISC-V ecosystem for optimization of edge applications. We describe the basic components of this ecosystem and introduce the envisioned demonstrators, which will be used in their evaluation.}}, author = {{Ecker, Wolfgang and Adelt, Peer and Müller, Wolfgang and Heckmann, Reinhold and Krstic, Milos and Herdt, Vladimir and Drechsler, Rolf and Angst, Gerhard and Wimmer, Ralf and Mauderer, Andreas and Stahl, Rafael and Emrich, Karsten and Mueller-Gritschneder, Daniel and Becker, Bernd and Scholl, Philipp and Jentzsch, Eyck and Schlamelcher, Jan and Grüttner, Kim and Bernardo, Paul Palomero and Brinkmann, Oliver and Damian, Mihaela and Oppermann, Julian and Koch, Andreas and Bormann, Jörg and Partzsch, Johannes and Mayr, Christian and Kunz, Wolfgang}}, booktitle = {{In Proceedings of the Design Automation and Test Conference and Exhibition (DATE 2022)}}, title = {{{The Scale4Edge RISC-V Ecosystem}}}, year = {{2022}}, } @article{29295, author = {{Schmolke, Tobias and Krüger, Christopher and Merdivan, David and Meschut, Gerson}}, journal = {{ ATZ - Automobiltechnische Zeitschrift}}, number = {{1}}, pages = {{80--85}}, title = {{{Gewichtsoptimierte Batteriegehäuse für Volumenfahrzeuge}}}, doi = {{https://doi.org/10.1007/s35148-021-0785-0}}, volume = {{124}}, year = {{2022}}, } @inbook{29355, author = {{Mildorf, Jarmila}}, booktitle = {{Erzählte Welt: Sinnstiftung in Zeiten kultureller und politischer Umbrüche}}, editor = {{Schachtner, Christina and Drews, Albert}}, pages = {{167--194}}, publisher = {{Evangelische Akademie Loccum}}, title = {{{Durch Andere sich selbst erzählen: Figuren der Selbststilisierung in autobiographischen Schriften von Alan Bennett und Candia McWilliam}}}, volume = {{9}}, year = {{2022}}, } @article{23415, author = {{Sperling, Martina and Schryen, Guido}}, journal = {{European Journal of Operational Research (EJOR)}}, number = {{2}}, pages = {{690 -- 705}}, title = {{{Decision Support for Disaster Relief: Coordinating Spontaneous Volunteers}}}, volume = {{299}}, year = {{2022}}, } @article{27776, author = {{Koldewey, Christian and Rasor, Anja and Reinhold, Jannik and Gausemeier, Jürgen and Dumitrescu, Roman and Chohan, Nadia and Frank, Maximilian}}, issn = {{0040-1625}}, journal = {{Technological Forecasting and Social Change}}, publisher = {{Elsevier}}, title = {{{Aligning strategic position, behavior, and structure for smart service businesses in manufacturing}}}, doi = {{10.1016/j.techfore.2021.121329}}, year = {{2022}}, } @inproceedings{29539, abstract = {{Explainable Artificial Intelligence (XAI) is currently an important topic for the application of Machine Learning (ML) in high-stakes decision scenarios. Related research focuses on evaluating ML algorithms in terms of interpretability. However, providing a human understandable explanation of an intelligent system does not only relate to the used ML algorithm. The data and features used also have a considerable impact on interpretability. In this paper, we develop a taxonomy for describing XAI systems based on aspects about the algorithm and data. The proposed taxonomy gives researchers and practitioners opportunities to describe and evaluate current XAI systems with respect to interpretability and guides the future development of this class of systems.}}, author = {{Kucklick, Jan-Peter}}, booktitle = {{Wirtschaftsinformatik 2022 Proceedings}}, keywords = {{Explainable Artificial Intelligence, XAI, Interpretability, Decision Support Systems, Taxonomy}}, location = {{Nürnberg (online)}}, title = {{{Towards a model- and data-focused taxonomy of XAI systems}}}, year = {{2022}}, } @unpublished{29541, author = {{Lienen, Christian and Platzner, Marco}}, title = {{{ReconROS Executor: Event-Driven Programming of FPGA-accelerated ROS 2 Applications}}}, year = {{2022}}, } @inbook{29104, abstract = {{The digitalization of workplaces can introduce changes on various levels of work activities. Educational research follows this transformation in one of two ways: On the one hand, there is the optimistic perspective of expecting to improve the quality of work and work life; on the other hand, there is the expectation that conditions of work and work life will generally deteriorate. Irrespective of the concrete outcomes of digitalization, a general agreement exists that digitalization will induce changes at workplaces that affect individuals and the tasks they do. At the same time, however, scholars disagree as to whether employees experience these changes in terms of affordances that engage them into learning new processes or if they experience constraints that inhibit further engagement in learning. This chapter explores the particular developments covered under the topic of digitalization at and of work, explains particular challenges of the introduction of cyber-physical systems and analyzes consequences for workplace learning. It focuses on conceptual change as a theoretical framework for understanding the quality of learning processes that seem inevitable in order to cope with the new requirements and – more importantly – to use the potentials of the new technologies. It then sketches the poor state of empirical research conducted in this area – so far limited to exploratory field studies – even in times of corona, which has boosted the digital transformation. The chapter ends with a description of the potential and problems of – at best interdisciplinary – research into learning at digitalized workplaces.}}, author = {{Harteis, Christian and Goller, Michael and Gerholz, Karl-Heinz}}, booktitle = {{The SAGE Handbook of Learning and Work}}, editor = {{Malloch, Margaret and Cairns, Len and Evans, Karen and O'Connor, Bridget N.}}, isbn = {{978-1-5264-9111-4}}, pages = {{329--342}}, publisher = {{SAGE Publications}}, title = {{{Digitalization of work: Challenges for workplace learning}}}, year = {{2022}}, } @article{29103, abstract = {{Im Praxissemester (PS) sind Mentor*innen für Studierende wichtige Bezugspersonen, die sie u. a. bei der Planung, Durchführung und Reflexion von Unterricht begleiten. Während z.B. zur Kompetenzentwicklung Studierender im PS mehrere Erkenntnisse vorliegen, ist die Perspektive von Mentor*innen bisher wenig untersucht. Dieser Bericht zielt darauf, die Relevanz von Mentor*innen herauszuarbeiten, Forschungsdesiderate zu umreißen und Handlungsoptionen aufzuzeigen.}}, author = {{Caruso, Carina and Goller, Michael}}, journal = {{Die Deutsche Schule}}, keywords = {{Schlagwörter: Mentoring, Praxissemester, Professionalisierung}}, number = {{4}}, publisher = {{Waxmann}}, title = {{{Die Relevanz von Mentor*innen für die Professionalisierung von angehenden Lehrkräften im Praxissemester: Forschungsdesiderate und Handlungsoptionen}}}, volume = {{114}}, year = {{2022}}, } @phdthesis{29763, abstract = {{Modern-day communication has become more and more digital. While this comes with many advantages such as a more efficient economy, it has also created more and more opportunities for various adversaries to manipulate communication or eavesdrop on it. The Snowden revelations in 2013 further highlighted the seriousness of these threats. To protect the communication of people, companies, and states from such threats, we require cryptography with strong security guarantees. Different applications may require different security properties from cryptographic schemes. For most applications, however, so-called adaptive security is considered a reasonable minimal requirement of security. Cryptographic schemes with adaptive security remain secure in the presence of an adversary that can corrupt communication partners to respond to messages of the adversaries choice, while the adversary may choose the messages based on previously observed interactions. While cryptography is associated the most with encryption, this is only one of many primitives that are essential for the security of digital interactions. This thesis presents novel identity-based encryption (IBE) schemes and verifiable random functions (VRFs) that achieve adaptive security as outlined above. Moreover, the cryptographic schemes presented in this thesis are proven secure in the standard model. That is without making use of idealized models like the random oracle model.}}, author = {{Niehues, David}}, keywords = {{public-key cryptography, lattices, pairings, verifiable random functions, identity-based encryption}}, title = {{{More Efficient Techniques for Adaptively-Secure Cryptography}}}, doi = {{10.25926/rdtq-jw45}}, year = {{2022}}, } @article{31071, abstract = {{Distributed, software-intensive systems (e.g., in the automotive sector) must fulfill communication requirements under hard real-time constraints. The requirements have to be documented and validated carefully using a systematic requirements engineering (RE) approach, for example, by applying scenario-based requirements notations. The resources of the execution platforms and their properties (e.g., CPU frequency or bus throughput) induce effects on the timing behavior, which may lead to violations of the real-time requirements. Nowadays, the platform properties and their induced timing effects are verified against the real-time requirements by means of timing analysis techniques mostly implemented in commercial-off-the-shelf tools. However, such timing analyses are conducted in late development phases since they rely on artifacts produced during these phases (e.g., the platform-specific code). In order to enable early timing analyses already during RE, we extend a scenario-based requirements notation with allocation means to platform models and define operational semantics for the purpose of simulation-based, platform-aware timing analyses. We illustrate and evaluate the approach with an automotive software-intensive system.}}, author = {{Holtmann, Jörg and Deantoni, Julien and Fockel, Markus}}, issn = {{1619-1366}}, journal = {{Software and Systems Modeling}}, keywords = {{Modeling and Simulation, Software}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Early timing analysis based on scenario requirements and platform models}}}, doi = {{10.1007/s10270-022-01002-3}}, year = {{2022}}, } @article{30739, author = {{Ring, Julia and Tadic, Jelena and Ristic, Selena and Poglitsch, Michael and Bergmann, Martina and Radic, Nemanja and Mossmann, Dirk and Liang, YongTian and Maglione, Marta and Jerkovic, Andrea and Hajiraissi, Roozbeh and Hanke, Marcel and Küttner, Victoria and Wolinski, Heimo and Zimmermann, Andreas and Domuz Trifunović, Lana and Mikolasch, Leonie and Moretti, Daiana N and Broeskamp, Filomena and Westermayer, Julia and Abraham, Claudia and Schauer, Simon and Dammbrueck, Christopher and Hofer, Sebastian J and Abdellatif, Mahmoud and Grundmeier, Guido and Kroemer, Guido and Braun, Ralf J and Hansen, Niklas and Sommer, Cornelia and Ninkovic, Mirjana and Seba, Sandra and Rockenfeller, Patrick and Vögtle, Friederike‐Nora and Dengjel, Jörn and Meisinger, Chris and Keller, Adrian and Sigrist, Stephan J and Eisenberg, Tobias and Madeo, Frank}}, issn = {{1757-4676}}, journal = {{EMBO Molecular Medicine}}, keywords = {{Molecular Medicine}}, pages = {{e13952}}, publisher = {{EMBO}}, title = {{{The HSP40 chaperone Ydj1 drives amyloid beta 42 toxicity}}}, doi = {{10.15252/emmm.202113952}}, volume = {{14}}, year = {{2022}}, } @inproceedings{31150, author = {{Heyser, Per and Meschut, Gerson and Nehls, Thomas and Scharr, Christian and Froitzheim, Pascal and Flügge, Wilko and Wiesenmayer, Sebastian and Merklein, Marion}}, booktitle = {{Pressen, Systeme, Prozesse der Zukunft Effizienz + Digitalisierung}}, isbn = {{978-3-86776-586-2}}, publisher = {{Europäische Forschungsgesellschaft für Blechverarbeitung e.V.}}, title = {{{Metamodellbasierte Prozesskette - Umformen-Schneiden-Spannen-Fügen}}}, volume = {{T 50}}, year = {{2022}}, } @book{31149, author = {{Meschut, Gerson and Heyser, Per and Merklein, Marion and Wiesenmayer, Sebastian and Flügge, Wilko and Scharr, Christian and Nehls, Thomas}}, isbn = {{978-3-86776-636-4}}, publisher = {{Europäische Forschungsgesellschaft für Blechverarbeitung e.V}}, title = {{{Konzeption einer adaptiven Prozesskette für das mechanische Fügen}}}, volume = {{578}}, year = {{2022}}, } @inproceedings{31151, author = {{Heyser, Per and Wiesenmayer, Sebastian and Nehls, Thomas and Scharr, Christian and Flügge, Wilko and Merklein, Marion and Meschut, Gerson}}, booktitle = {{SMART PRODUCTION 2022: DIGITALIZING AUTOMOTIVE MANUFACTURING}}, location = {{Bad Nauheim}}, publisher = {{Automotive Circle}}, title = {{{Smart process chain – data analysis in sheet metal processing for joinability prediction}}}, year = {{2022}}, } @inproceedings{31068, author = {{Chen, Mei-Hua and Mudgal, Garima and Chen, Wei-Fan and Wachsmuth, Henning}}, booktitle = {{EUROCALL}}, title = {{{Investigating the argumentation structures of EFL learners from diverse language backgrounds}}}, year = {{2022}}, } @inproceedings{31171, author = {{Bernemann, Sören Antonius and Maćkowiak, Jan and Maćkowiak, Jerzy and Bertling, René and Lutters, Nicole and Kenig, Eugeny}}, location = {{Frankfurt am Main}}, title = {{{Entwicklung eines innovativen Trennapparates zur Stickstoffrückgewinnung aus landwirtschaftlichen Abfällen}}}, year = {{2022}}, } @article{29351, abstract = {{Safety-critical systems have to follow extremely high dependability requirements as specified in the standards for automotive, air, and space applications. The required high fault coverage at runtime is usually obtained by a combination of concurrent error detection or correction and periodic tests within rather short time intervals. The concurrent scheme ensures the integrity of computed results while the periodic test has to identify potential aging problems and to prevent any fault accumulation which may invalidate the concurrent error detection mechanism. Such periodic built-in self-test (BIST) schemes are already commercialized for memories and for random logic. The paper at hand extends this approach to interconnect structures. A BIST scheme is presented which targets interconnect defects before they will actually affect the system functionality at nominal speed. A BIST schedule is developed which significantly reduces aging caused by electromigration during the lifetime application of the periodic test.}}, author = {{Sadeghi-Kohan, Somayeh and Hellebrand, Sybille and Wunderlich, Hans-Joachim}}, issn = {{0923-8174}}, journal = {{Journal of Electronic Testing}}, keywords = {{Electrical and Electronic Engineering}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Stress-Aware Periodic Test of Interconnects}}}, doi = {{10.1007/s10836-021-05979-5}}, year = {{2022}}, } @misc{29890, author = {{Sadeghi-Kohan, Somayeh and Hellebrand, Sybille and Wunderlich, Hans-Joachim}}, keywords = {{WORKSHOP}}, pages = {{2}}, publisher = {{European Workshop on Silicon Lifecycle Management, March 18, 2022}}, title = {{{EM-Aware Interconnect BIST}}}, year = {{2022}}, } @article{31241, author = {{Verma, A.K. and Bopp, F. and Finley, J.J. and Jonas, B. and Zrenner, A. and Reuter, Dirk}}, issn = {{0022-0248}}, journal = {{Journal of Crystal Growth}}, keywords = {{Materials Chemistry, Inorganic Chemistry, Condensed Matter Physics}}, publisher = {{Elsevier BV}}, title = {{{Low Areal Densities of InAs Quantum Dots on GaAs(100) Prepared by Molecular Beam Epitaxy}}}, doi = {{10.1016/j.jcrysgro.2022.126715}}, year = {{2022}}, } @article{30295, author = {{Klingsiek, Katrin and John, Thomas and Kundisch, Dennis}}, journal = {{die hochschullehre}}, number = {{5}}, pages = {{61 -- 76}}, title = {{{Procrastination in the Looking Glass of Self-Awareness: Can Gamified Self-Monitoring Reduce Academic Procrastination?}}}, volume = {{8}}, year = {{2022}}, } @article{31023, author = {{Subban, Pearl K. and Bradford, Brent and Sharma, Umesh and Loreman, Tim and Avramidis, Elias and Kullmann, Harry and Sahli Lozano, Caroline and Romano, Alessandra and Woodcock, Stuart}}, journal = {{European Journal of Special Needs Education}}, pages = {{1–12}}, title = {{{Does it really take a village to raise a child? Reflections on the need for collective responsibility in inclusive education}}}, doi = {{10.1080/08856257.2022.2059632}}, volume = {{37}}, year = {{2022}}, } @article{31329, abstract = {{Highly directive antennas with the ability of shaping radiation patterns in desired directions are essential for efficient on-chip optical communication with reduced cross talk. In this paper, we design and optimize three distinct broadband traveling-wave tantalum pentoxide antennas exhibiting highly directional characteristics. Our antennas contain a director and reflector deposited on a glass substrate, which are excited by a dipole emitter placed in the feed gap between the two elements. Full-wave simulations in conjunction with global optimization provide structures with an enhanced linear directivity as high as 119 radiating in the substrate. The high directivity is a result of the interplay between two dominant TE modes and the leaky modes present in the antenna director. Furthermore, these low-loss dielectric antennas exhibit a near-unity radiation efficiency at the operational wavelength of 780 nm and maintain a broad bandwidth. Our numerical results are in good agreement with experimental measurements from the optimized antennas fabricated using a two-step electron-beam lithography, revealing the highly directive nature of our structures. We envision that our antenna designs can be conveniently adapted to other dielectric materials and prove instrumental for inter-chip optical communications and other on-chip applications.}}, author = {{Farheen, Henna and Yan, Lok-Yee and Quiring, Viktor and Eigner, Christof and Zentgraf, Thomas and Linden, Stefan and Förstner, Jens and Myroshnychenko, Viktor}}, issn = {{1094-4087}}, journal = {{Optics Express}}, keywords = {{tet_topic_opticalantenna}}, number = {{11}}, pages = {{19288}}, publisher = {{Optica Publishing Group}}, title = {{{Broadband optical Ta2O5 antennas for directional emission of light}}}, doi = {{10.1364/oe.455815}}, volume = {{30}}, year = {{2022}}, } @inbook{31391, author = {{Elit, Stefan}}, booktitle = {{Aufbruch und Krise. Ästhetische/Narrative Auseinandersetzungen mit der spanischen Transición und der deutschen ‚Wende‘ (Germanisch-Romanische Monatsschrift. Beiheft) }}, editor = {{Schreckenberg, Stefan and Schumann, Daniel Verdú}}, pages = {{183--196}}, title = {{{Dekonstruktionen des Staatssozialismus (und mehr). Komische Helden der Wende- und Nachwendezeit in deutschsprachiger Literatur}}}, year = {{2022}}, } @inproceedings{31407, abstract = {{Students are not aware and have little understanding of collecting and processing personal data in their everyday contexts of interaction with data-driven digital artifacts. To be aware of where, how and why data are collected and processed is important to be self-determined. Therefore, we develop and evaluate a teaching sequence to provide reasoning about data as a fundamental aspect of statistical literacy. This teaching sequences deals with the context of interaction with a cellular network where location data are collected. Students get real location data from an unknown person which can be explored with the aim to characterize the person. Students gain different insights by using different basic filters and explain how they achieve these. The results of the exploratory study indicate that students learned to gain insights by exploring given location data and that these insights may describe the person with detailed aspects that may not necessarily be true.}}, author = {{Höper, Lukas and Podworny, Susanne and Schulte, Carsten and Frischemeier, Daniel}}, booktitle = {{Proceedings of the IASE 2021 Satellite Conference}}, publisher = {{International Association for Statistical Education}}, title = {{{Exploration of Location Data: Real Data in the Context of Interaction with a Cellular Network}}}, doi = {{10.52041/iase.nkppy}}, year = {{2022}}, } @article{31480, abstract = {{Optical geometric phase encoded by in-plane spatial orientation of microstructures has promoted the rapid development of numerous functional meta-devices. However, pushing the concept of the geometric phase toward the acoustic community still faces challenges. In this work, we utilize two acoustic nonlocal metagratings that could support a direct conversion between an acoustic plane wave and a designated vortex mode to obtain the acoustic geometric phase, in which an orbital angular momentum conversion process plays a vital role. In addition, we realize the acoustic geometric phases of different orders by merely varying the orientation angle of the acoustic nonlocal metagratings. Intriguingly, according to our developed theory, we reveal that the reflective acoustic geometric phase, which is twice the transmissive one, can be readily realized by transferring the transmitted configuration to a reflected one. Both the theoretical study and experimental measurements verify the announced transmissive and reflective acoustic geometric phases. Moreover, the reconfigurability and continuous phase modulation that covers the 2π range shown by the acoustic geometric phases provide us with the alternatives in advanced acoustic wavefront control.}}, author = {{Liu, Bingyi and Zhou, Zhiling and Wang, Yongtian and Zentgraf, Thomas and Li, Yong and Huang, Lingling}}, issn = {{0003-6951}}, journal = {{Applied Physics Letters}}, keywords = {{Physics and Astronomy (miscellaneous)}}, number = {{21}}, publisher = {{AIP Publishing}}, title = {{{Experimental verification of the acoustic geometric phase}}}, doi = {{10.1063/5.0091474}}, volume = {{120}}, year = {{2022}}, } @article{31479, author = {{Baswana, Surender and Gupta, Shiv and Knollmann, Till}}, issn = {{0178-4617}}, journal = {{Algorithmica}}, keywords = {{Applied Mathematics, Computer Science Applications, General Computer Science}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Mincut Sensitivity Data Structures for the Insertion of an Edge}}}, doi = {{10.1007/s00453-022-00978-0}}, year = {{2022}}, } @misc{31506, author = {{Elit, Stefan}}, booktitle = {{Arbitrium 40 }}, pages = {{60--63}}, title = {{{Friedrich Gottlieb Klopstock: Handexemplar der „Oden“. Kritische Edition, hg. v. Marit Müller, Göttingen 2020 (edition Text 18)}}}, doi = {{DOI: 10.1515/arb-2022-0022}}, year = {{2022}}, } @article{31541, author = {{Kobecki, Michal and Scherbakov, Alexey V. and Kukhtaruk, Serhii M. and Yaremkevich, Dmytro D. and Henksmeier, Tobias and Trapp, Alexander and Reuter, Dirk and Gusev, Vitalyi E. and Akimov, Andrey V. and Bayer, Manfred}}, issn = {{0031-9007}}, journal = {{Physical Review Letters}}, keywords = {{General Physics and Astronomy}}, number = {{15}}, publisher = {{American Physical Society (APS)}}, title = {{{Giant Photoelasticity of Polaritons for Detection of Coherent Phonons in a Superlattice with Quantum Sensitivity}}}, doi = {{10.1103/physrevlett.128.157401}}, volume = {{128}}, year = {{2022}}, } @unpublished{31545, abstract = {{Knowledge graph embedding research has mainly focused on learning continuous representations of entities and relations tailored towards the link prediction problem. Recent results indicate an ever increasing predictive ability of current approaches on benchmark datasets. However, this effectiveness often comes with the cost of over-parameterization and increased computationally complexity. The former induces extensive hyperparameter optimization to mitigate malicious overfitting. The latter magnifies the importance of winning the hardware lottery. Here, we investigate a remedy for the first problem. We propose a technique based on Kronecker decomposition to reduce the number of parameters in a knowledge graph embedding model, while retaining its expressiveness. Through Kronecker decomposition, large embedding matrices are split into smaller embedding matrices during the training process. Hence, embeddings of knowledge graphs are not plainly retrieved but reconstructed on the fly. The decomposition ensures that elementwise interactions between three embedding vectors are extended with interactions within each embedding vector. This implicitly reduces redundancy in embedding vectors and encourages feature reuse. To quantify the impact of applying Kronecker decomposition on embedding matrices, we conduct a series of experiments on benchmark datasets. Our experiments suggest that applying Kronecker decomposition on embedding matrices leads to an improved parameter efficiency on all benchmark datasets. Moreover, empirical evidence suggests that reconstructed embeddings entail robustness against noise in the input knowledge graph. To foster reproducible research, we provide an open-source implementation of our approach, including training and evaluation scripts as well as pre-trained models in our knowledge graph embedding framework.}}, author = {{Demir, Caglar and Lienen, Julian and Ngonga Ngomo, Axel-Cyrille}}, booktitle = {{arXiv:2205.06560}}, title = {{{Kronecker Decomposition for Knowledge Graph Embeddings}}}, year = {{2022}}, } @article{31547, author = {{Hanke, Marcel and Dornbusch, Daniel and Hadlich, Christoph and Rossberg, Andre and Hansen, Niklas and Grundmeier, Guido and Tsushima, Satoru and Keller, Adrian and Fahmy, Karim}}, issn = {{2001-0370}}, journal = {{Computational and Structural Biotechnology Journal}}, keywords = {{Computer Science Applications, Genetics, Biochemistry, Structural Biology, Biophysics, Biotechnology}}, pages = {{2611--2623}}, publisher = {{Elsevier BV}}, title = {{{Anion-specific structure and stability of guanidinium-bound DNA origami}}}, doi = {{10.1016/j.csbj.2022.05.037}}, volume = {{20}}, year = {{2022}}, } @unpublished{31546, abstract = {{In semi-supervised learning, the paradigm of self-training refers to the idea of learning from pseudo-labels suggested by the learner itself. Across various domains, corresponding methods have proven effective and achieve state-of-the-art performance. However, pseudo-labels typically stem from ad-hoc heuristics, relying on the quality of the predictions though without guaranteeing their validity. One such method, so-called credal self-supervised learning, maintains pseudo-supervision in the form of sets of (instead of single) probability distributions over labels, thereby allowing for a flexible yet uncertainty-aware labeling. Again, however, there is no justification beyond empirical effectiveness. To address this deficiency, we make use of conformal prediction, an approach that comes with guarantees on the validity of set-valued predictions. As a result, the construction of credal sets of labels is supported by a rigorous theoretical foundation, leading to better calibrated and less error-prone supervision for unlabeled data. Along with this, we present effective algorithms for learning from credal self-supervision. An empirical study demonstrates excellent calibration properties of the pseudo-supervision, as well as the competitiveness of our method on several benchmark datasets.}}, author = {{Lienen, Julian and Demir, Caglar and Hüllermeier, Eyke}}, booktitle = {{arXiv:2205.15239}}, title = {{{Conformal Credal Self-Supervised Learning}}}, year = {{2022}}, } @inproceedings{31540, author = {{Çavdar, Serkan and Meschut, Gerson}}, booktitle = {{45th Annual Meeting of The Adhesion Society}}, location = {{San Diego, California, USA}}, title = {{{Stress-based fatigue lifetime prediction of adhesively bonded joints with hyperelastic deformation behavior}}}, year = {{2022}}, } @phdthesis{31556, abstract = {{Mehrzieloptimierung behandelt Probleme, bei denen mehrere skalare Zielfunktionen simultan optimiert werden sollen. Ein Punkt ist in diesem Fall optimal, wenn es keinen anderen Punkt gibt, der mindestens genauso gut ist in allen Zielfunktionen und besser in mindestens einer Zielfunktion. Ein notwendiges Optimalitätskriterium lässt sich über Ableitungsinformationen erster Ordnung der Zielfunktionen herleiten. Die Menge der Punkte, die dieses notwendige Kriterium erfüllen, wird als Pareto-kritische Menge bezeichnet. Diese Arbeit enthält neue Resultate über Pareto-kritische Mengen für glatte und nicht-glatte Mehrzieloptimierungsprobleme, sowohl was deren Berechnung betrifft als auch deren Struktur. Im glatten Fall erfolgt die Berechnung über ein Fortsetzungsverfahren, im nichtglatten Fall über ein Abstiegsverfahren. Anschließend wird die Struktur des Randes der Pareto-kritischen Menge analysiert, welcher aus Pareto-kritischen Mengen kleinerer Subprobleme besteht. Schlussendlich werden inverse Probleme betrachtet, bei denen zu einer gegebenen Datenmenge ein Zielfunktionsvektor gefunden werden soll, für den die Datenpunkte kritisch sind.}}, author = {{Gebken, Bennet}}, title = {{{Computation and analysis of Pareto critical sets in smooth and nonsmooth multiobjective optimization}}}, doi = {{10.17619/UNIPB/1-1327}}, year = {{2022}}, } @article{31574, abstract = {{We model negative polarization, which is observed for planetary regoliths at backscattering, solving a full wave problem of light scattering with a numerically exact Discontinuous Galerkin Time Domain (DGTD) method. Pieces of layers with the bulk packing density of particles close to 0.5 are used. The model particles are highly absorbing and have irregular shapes and sizes larger than the wavelength of light. This represents a realistic analog of low-albedo planetary regoliths. Our simulations confirm coherent backscattering mechanism of the origin of negative polarization. We show that angular profiles of polarization are stabilized if the number of particles in a layer piece becomes larger than ten. This allows application of our approach to the negative polarization modeling for planetary regoliths.}}, author = {{Grynko, Yevgen and Shkuratov, Yuriy and Alhaddad, Samer and Förstner, Jens}}, issn = {{0019-1035}}, journal = {{Icarus}}, keywords = {{tet_topic_scattering}}, pages = {{115099}}, publisher = {{Elsevier BV}}, title = {{{Negative polarization of light at backscattering from a numerical analog of planetary regoliths}}}, doi = {{10.1016/j.icarus.2022.115099}}, volume = {{384}}, year = {{2022}}, } @misc{31598, author = {{Strauß, Sara}}, booktitle = {{European Journal of Life Writing}}, pages = {{29--34}}, title = {{{"Elizabeth Grubgeld, Disability and Life Writing in Post-Independence Ireland", Book Review}}}, volume = {{11}}, year = {{2022}}, } @article{31613, author = {{Ballweg, Sandra}}, journal = {{International Journal of Multilingualims}}, title = {{{Anticipating Expectations. Family Language Policy and its Orientation to the School System}}}, doi = {{https://doi.org/10.1080/14790718.2022.2033756}}, year = {{2022}}, } @inbook{31674, author = {{Karsten, Andrea and Schwede, Jana and Körber, Miriam and Scharlau, Ingrid}}, booktitle = {{Die Praxis der systematischen Metaphernanalyse}}, editor = {{Schröder, Julia and Pfaller, Larissa and Hoklas, Anne-Kathrin and Schmitt, Rudolf}}, isbn = {{978-3-658-36120-4}}, publisher = {{Springer VS}}, title = {{{Transitivitätscharakteristika als Werkzeug in der systematischen qualitativen Metaphernanalyse}}}, year = {{2022}}, } @article{32764, author = {{Kasse, Robert M. and Geise, Natalie R. and Sebti, Elias and Lim, Kipil and Takacs, Christopher J. and Cao, Chuntian and Steinrück, Hans-Georg and Toney, Michael F.}}, issn = {{2574-0962}}, journal = {{ACS Applied Energy Materials}}, keywords = {{Electrical and Electronic Engineering, Materials Chemistry, Electrochemistry, Energy Engineering and Power Technology, Chemical Engineering (miscellaneous)}}, number = {{7}}, pages = {{8273--8281}}, publisher = {{American Chemical Society (ACS)}}, title = {{{Combined Effects of Uniform Applied Pressure and Electrolyte Additives in Lithium-Metal Batteries}}}, doi = {{10.1021/acsaem.2c00806}}, volume = {{5}}, year = {{2022}}, } @inbook{32792, abstract = {{Decision makers in complex business environments have different goals and constraints and therefore require tailored decision support systems (DSS). Following a low-code approach, a tailored DSS can be created by a decision maker as a process-based composition of existing, interoperable decision support services. Data incompatibilities may be introduced during the design or execution of such a process-driven DSS, e.g., when a service always generates or a decision maker selects data which violates a data constraint of a subsequent service. These incompatibilities cause interrupted or erroneous decision processes. In this paper, we contribute an approach which enables the detection of data incompatibilities in process-driven DSS during process design and execution. Our approach utilizes the JSON Schema specification to define service interfaces and associated type constraints which data produced by services or decision makers can be validated against. We demonstrate our approach in the context of decision support for energy network planning using a prototypical open-source implementation.}}, author = {{Kirchhoff, Jonas and Gottschalk, Sebastian and Engels, Gregor}}, booktitle = {{Lecture Notes in Business Information Processing}}, isbn = {{9783031115097}}, issn = {{1865-1348}}, publisher = {{Springer International Publishing}}, title = {{{Detecting Data Incompatibilities in Process-Driven Decision Support Systems}}}, doi = {{10.1007/978-3-031-11510-3_6}}, year = {{2022}}, } @article{32857, author = {{Gutt, Jana Kim and Thommes, Kirsten}}, issn = {{0065-0668}}, journal = {{Academy of Management Proceedings}}, keywords = {{Microbiology}}, number = {{1}}, publisher = {{Academy of Management}}, title = {{{Speaking of Performance: Evaluating Team Members’ Performance with Open-Ended Audio Comments}}}, doi = {{10.5465/ambpp.2022.16394abstract}}, volume = {{2022}}, year = {{2022}}, } @article{32864, abstract = {{The further development of in-mold-assembly (IMA) technologies for structural hybrid components is of great importance for increasing the economic efficiency and thus the application potential. This paper presents an innovative IMA process concept for the manufacturing of bending loaded hybrid components consisting of two outer metal belts and an inner core structure made of glass mat reinforced thermoplastic (GMT). In this process, the core structure, which is provided with stiffening ribs and functional elements, is formed and joined to two metal belts in one single step. For experimental validation of the concept, the development of a prototypic molding tool and the manufacturing of hybrid beams including process parameters are described. Three-point bending tests and optical measurement technologies are used to characterize the failure behavior and mechanical properties of the produced hybrid beams. It was found that the innovative IMA process enables the manufacturing of hybrid components with high energy absorption and low weight in one step. The mass-specific energy absorption is increased by 693 % compared to pure GMT beams.}}, author = {{Stallmeister, Tim and Tröster, Thomas}}, issn = {{1662-9795}}, journal = {{Key Engineering Materials}}, keywords = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}}, pages = {{1457--1467}}, publisher = {{Trans Tech Publications, Ltd.}}, title = {{{In-Mold-Assembly of Hybrid Bending Structures by Compression Molding}}}, doi = {{10.4028/p-5fxp53}}, volume = {{926}}, year = {{2022}}, } @article{32866, author = {{Shollo, Arisa and Hopf, Konstantin and Thiess, Tiemo and Müller, Oliver}}, issn = {{0963-8687}}, journal = {{The Journal of Strategic Information Systems}}, keywords = {{Information Systems and Management, Information Systems, Management Information Systems}}, number = {{3}}, publisher = {{Elsevier BV}}, title = {{{Shifting ML value creation mechanisms: A process model of ML value creation}}}, doi = {{10.1016/j.jsis.2022.101734}}, volume = {{31}}, year = {{2022}}, } @article{32406, abstract = {{The efficient loading of DNA nanostructures with intercalating or groove-binding drugs is an important prerequisite for various applications in drug delivery. However, unambiguous verification and quantification of successful drug loading...}}, author = {{Hanke, Marcel and Grundmeier, Guido and Keller, Adrian}}, issn = {{2040-3364}}, journal = {{Nanoscale}}, keywords = {{General Materials Science}}, pages = {{11552--11560}}, publisher = {{Royal Society of Chemistry (RSC)}}, title = {{{Direct visualization of the drug loading of single DNA origami nanostructures by AFM-IR nanospectroscopy}}}, doi = {{10.1039/d2nr02701a}}, volume = {{14}}, year = {{2022}}, } @misc{33001, author = {{Linnig, Caterina and Tröster, Thomas}}, booktitle = {{CU reports}}, title = {{{Sauber recyceln- Innovative Verfahrenskombination mit Ultraschall ermöglicht sicheren Umgang mit recycelten Carbonfasern}}}, year = {{2022}}, } @article{33009, abstract = {{Abstract Purpose The present work aimed to delineate (i) a revised protocol according to recent methodological developments in evidence generation, to (ii) describe its interpretation, the assessment of the overall certainty of evidence and to (iii) outline an Evidence to Decision framework for deriving an evidence-based guideline on quantitative and qualitative aspects of dietary protein intake. Methods A methodological protocol to systematically investigate the association between dietary protein intake and several health outcomes and for deriving dietary protein intake recommendations for the primary prevention of various non-communicable diseases in the general adult population was developed. Results The developed methodological protocol relies on umbrella reviews including systematic reviews with or without meta-analyses. Systematic literature searches in three databases will be performed for each health-related outcome. The methodological quality of all selected systematic reviews will be evaluated using a modified version of AMSTAR 2, and the outcome-specific certainty of evidence for systematic reviews with or without meta-analysis will be assessed with NutriGrade. The general outline of the Evidence to Decision framework foresees that recommendations in the derived guideline will be given based on the overall certainty of evidence as well as on additional criteria such as sustainability. Conclusion The methodological protocol permits a systematic evaluation of published systematic reviews on dietary protein intake and its association with selected health-related outcomes. An Evidence to Decision framework will be the basis for the overall conclusions and the resulting recommendations for dietary protein intake. }}, author = {{Kroke, Anja and Schmidt, Annemarie and Amini, Anna M. and Kalotai, Nicole and Lehmann, Andreas and Haardt, Julia and Bauer, Jürgen M. and Bischoff-Ferrari, Heike A. and Boeing, Heiner and Egert, Sarah and Ellinger, Sabine and Kühn, Tilman and Louis, Sandrine and Lorkowski, Stefan and Nimptsch, Katharina and Remer, Thomas and Schulze, Matthias B. and Siener, Roswitha and Stangl, Gabriele I. and Volkert, Dorothee and Zittermann, Armin and Buyken, Anette E. and Watzl, Bernhard and Schwingshackl, Lukas}}, issn = {{1436-6207}}, journal = {{European Journal of Nutrition}}, keywords = {{Nutrition and Dietetics, Medicine (miscellaneous)}}, number = {{4}}, pages = {{2091--2101}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Dietary protein intake and health-related outcomes: a methodological protocol for the evidence evaluation and the outline of an evidence to decision framework underlying the evidence-based guideline of the German Nutrition Society}}}, doi = {{10.1007/s00394-021-02789-5}}, volume = {{61}}, year = {{2022}}, } @inproceedings{32796, author = {{Böcker, Joachim}}, booktitle = {{2022 International Symposium on Power Electronics, Electrical Drives, Automation and Motion (SPEEDAM)}}, location = {{Sorrento, Italy}}, publisher = {{IEEE}}, title = {{{Concept Study of an LLC Converter with Magnetically Resonant Inductor}}}, doi = {{10.1109/speedam53979.2022.9842047}}, year = {{2022}}, } @misc{33033, author = {{Fehring, Lukas}}, title = {{{Combined Ranking and Regression Trees for Algorithm Selection}}}, year = {{2022}}, } @misc{33041, author = {{Luan, Yunhao}}, title = {{{Untersuchung der physikalische Absorptionsmethoden zur Bestimmung von gasseitigen Stoffübergangskoeffizienten für strukturierte Packungen basierend auf hydrodynamischen Analogien}}}, year = {{2022}}, } @misc{32756, author = {{Markewitz, Friedrich}}, booktitle = {{Zeitschrift für Angewandte Linguistik}}, pages = {{130--138}}, title = {{{Hexenverhörprotokolle als sprachhistorisches Korpus. Fallstudien zur Erschließung der frühneuzeitlichen Schriftsprache}}}, volume = {{76}}, year = {{2022}}, } @inproceedings{29934, abstract = {{Tire and road wear are a major source of emissions of nonexhaust particulate matter (PM) and make up the largest share of microplastics in the environment. To reduce tire wear through numerical optimization of a vehicle's suspension system, fast simulations of the representative usage of a vehicle are needed. Therefore, this contribution evaluates if instead of a full simulation of a representative test drive, only specific driving maneuvers resulting from a clustering of the driving data can be used to predict tire wear. As a measure for tire wear, the friction work between tire and road is calculated. It is shown that enough clusters result in negligible deviations between the total friction work of the full simulation and the cluster simulations as well as between the distributions of the friction work over the tire width. The calculation time can be reduced to about 1% of the full simulation.}}, author = {{Muth, Lars and Noll, Christian and Sextro, Walter}}, booktitle = {{Advances in Dynamics of Vehicles on Roads and Tracks II - Proceedings of the 27th Symposium of the International Association of Vehicle System Dynamics, IAVSD 2021}}, editor = {{Orlova, Anna and Cole, David}}, isbn = {{978-3-031-07304-5}}, keywords = {{Tire Wear, Vehicle Dynamics, Clustering, Virtual Test}}, location = {{Saint Petersburg, Russia}}, publisher = {{Springer}}, title = {{{Generation of a Reduced, Representative, Virtual Test Drive for Fast Evaluation of Tire Wear by Clustering of Driving Data}}}, doi = {{10.1007/978-3-031-07305-2_92}}, year = {{2022}}, } @unpublished{30867, abstract = {{In online algorithm selection (OAS), instances of an algorithmic problem class are presented to an agent one after another, and the agent has to quickly select a presumably best algorithm from a fixed set of candidate algorithms. For decision problems such as satisfiability (SAT), quality typically refers to the algorithm's runtime. As the latter is known to exhibit a heavy-tail distribution, an algorithm is normally stopped when exceeding a predefined upper time limit. As a consequence, machine learning methods used to optimize an algorithm selection strategy in a data-driven manner need to deal with right-censored samples, a problem that has received little attention in the literature so far. In this work, we revisit multi-armed bandit algorithms for OAS and discuss their capability of dealing with the problem. Moreover, we adapt them towards runtime-oriented losses, allowing for partially censored data while keeping a space- and time-complexity independent of the time horizon. In an extensive experimental evaluation on an adapted version of the ASlib benchmark, we demonstrate that theoretically well-founded methods based on Thompson sampling perform specifically strong and improve in comparison to existing methods.}}, author = {{Tornede, Alexander and Bengs, Viktor and Hüllermeier, Eyke}}, booktitle = {{Proceedings of the 36th AAAI Conference on Artificial Intelligence}}, publisher = {{AAAI}}, title = {{{Machine Learning for Online Algorithm Selection under Censored Feedback}}}, year = {{2022}}, } @unpublished{30865, abstract = {{The problem of selecting an algorithm that appears most suitable for a specific instance of an algorithmic problem class, such as the Boolean satisfiability problem, is called instance-specific algorithm selection. Over the past decade, the problem has received considerable attention, resulting in a number of different methods for algorithm selection. Although most of these methods are based on machine learning, surprisingly little work has been done on meta learning, that is, on taking advantage of the complementarity of existing algorithm selection methods in order to combine them into a single superior algorithm selector. In this paper, we introduce the problem of meta algorithm selection, which essentially asks for the best way to combine a given set of algorithm selectors. We present a general methodological framework for meta algorithm selection as well as several concrete learning methods as instantiations of this framework, essentially combining ideas of meta learning and ensemble learning. In an extensive experimental evaluation, we demonstrate that ensembles of algorithm selectors can significantly outperform single algorithm selectors and have the potential to form the new state of the art in algorithm selection.}}, author = {{Tornede, Alexander and Gehring, Lukas and Tornede, Tanja and Wever, Marcel Dominik and Hüllermeier, Eyke}}, booktitle = {{Machine Learning}}, title = {{{Algorithm Selection on a Meta Level}}}, year = {{2022}}, } @techreport{33070, author = {{Fuhrmann, Anika and Schoch, Rebecca and Rusam, Alexander and Bosse, Michael and Flachmann, Felix and Moritzer, Elmar and Hochrein, Thomas and Bastian, Martin}}, publisher = {{Shaker}}, title = {{{Verbessertes Füllverhalten im Spritzgießprozess durch Schäumen von WPC: Bewertung des Fließverhaltens treibmittelbeladener Polymerschmelzen}}}, year = {{2022}}, }