TY - CONF AU - Althaus, Maike AU - Müller, Michelle AU - Vorbohle, Christian AU - Kundisch, Dennis ID - 44444 T2 - Proceedings of the International Conference on Challenges in Managing Smart Products and Services (CHIMSPAS 2023) TI - Business Models for Cultural Event Platforms – A Taxonomy Approach ER - TY - CONF AU - Laux, Florian AU - Poniatowski, Martin AU - Kundisch, Dennis ID - 44053 T2 - Proceedings of the 31st European Conference on Information Systems (ECIS) TI - May I have your Attention, please? – The Interaction between Attention Screening and Reputation on Crowdworking Platforms ER - TY - GEN AU - Neukötter, Moritz AU - Jesinghausen, Steffen AU - Schmid, Hans-Joachim ID - 44103 TI - Particles as Seeds for Instabilities in Uniaxially Elongated Polymer Suspension Filaments (Presentation) ER - TY - JOUR AU - Küster, Christine AU - Klünder, Nina AU - Wagenknecht, Inga ID - 44477 JF - Hauswirtschaft und Wissenschaft SN - 2626-0913 TI - Haushaltswissenschaft – Eine Diskussionsgrundlage VL - 71 ER - TY - CHAP AU - Meine, Sabine AU - Otto, Arnold AU - Süßmann, Johannes ID - 35063 SN - 978-3-8260-7218-5 T2 - Musiklandschaften zwischen Rhein und Weser. Pluralisierung und Verflechtung entlang des Hellwegs in der Frühen Neuzeit. Unter Mitarbeit v. Markus Lauert TI - Musiklandschaften zwischen Rhein und Weser – Einführung ER - TY - CONF AU - Gharibian, Sevag AU - Watson, James AU - Bausch, Johannes ID - 20841 T2 - Proceedings of the 40th International Symposium on Theoretical Aspects of Computer Science (STACS) TI - The Complexity of Translationally Invariant Problems beyond Ground State Energies VL - 254 ER - TY - GEN AB - Extending the notion of maxcut, the study of the frustration index of signed graphs is one of the basic questions in the theory of signed graphs. Recently two of the authors initiated the study of critically frustrated signed graphs. That is a signed graph whose frustration index decreases with the removal of any edge. The main focus of this study is on critical signed graphs which are not edge-disjoint unions of critically frustrated signed graphs (namely non-decomposable signed graphs) and which are not built from other critically frustrated signed graphs by subdivision. We conjecture that for any given k there are only finitely many critically k-frustrated signed graphs of this kind. Providing support for this conjecture we show that there are only two of such critically 3-frustrated signed graphs where there is no pair of edge-disjoint negative cycles. Similarly, we show that there are exactly ten critically 3-frustrated signed planar graphs that are neither decomposable nor subdivisions of other critically frustrated signed graphs. We present a method for building non-decomposable critically frustrated signed graphs based on two given such signed graphs. We also show that the condition of being non-decomposable is necessary for our conjecture. AU - Cappello, Chiara AU - Naserasr, Reza AU - Steffen, Eckhard AU - Wang, Zhouningxin ID - 44501 T2 - arXiv:2304.10243 TI - Critically 3-frustrated signed graphs ER - TY - JOUR AU - Tapio, Kosti AU - Kielar, Charlotte AU - Parikka, Johannes M. AU - Keller, Adrian AU - Järvinen, Heini AU - Fahmy, Karim AU - Toppari, J. Jussi ID - 42517 JF - Chemistry of Materials KW - Materials Chemistry KW - General Chemical Engineering KW - General Chemistry SN - 0897-4756 TI - Large-Scale Formation of DNA Origami Lattices on Silicon VL - 35 ER - TY - JOUR AU - Pothineni, Bhanu Kiran AU - Keller, Adrian ID - 42518 JF - Advanced NanoBiomed Research KW - General Medicine SN - 2699-9307 TI - Nanoparticle‐Based Formulations of Glycopeptide Antibiotics: A Means for Overcoming Vancomycin Resistance in Bacterial Pathogens? VL - 3 ER - TY - JOUR AU - Hanke, Marcel AU - Tomm, Emilia AU - Grundmeier, Guido AU - Keller, Adrian ID - 44503 JF - ChemBioChem KW - Organic Chemistry KW - Molecular Biology KW - Molecular Medicine KW - Biochemistry SN - 1439-4227 TI - Effect of Ionic Strength on the Thermal Stability of DNA Origami Nanostructures ER - TY - JOUR AU - Linko, Veikko AU - Keller, Adrian ID - 44504 JF - Small KW - Biomaterials KW - Biotechnology KW - General Materials Science KW - General Chemistry SN - 1613-6810 TI - Stability of DNA Origami Nanostructures in Physiological Media: The Role of Molecular Interactions ER - TY - THES AU - Kruse, Anne ID - 44509 SN - 978-3-8440-8955-4 TI - Entwicklung einer Methode zur Integration der Additiven Fertigung in die Serienproduktion am Beispiel des Lasersinterns VL - 27 ER - TY - GEN AB - For open world applications, deep neural networks (DNNs) need to be aware of previously unseen data and adaptable to evolving environments. Furthermore, it is desirable to detect and learn novel classes which are not included in the DNNs underlying set of semantic classes in an unsupervised fashion. The method proposed in this article builds upon anomaly detection to retrieve out-of-distribution (OoD) data as candidates for new classes. We thereafter extend the DNN by $k$ empty classes and fine-tune it on the OoD data samples. To this end, we introduce two loss functions, which 1) entice the DNN to assign OoD samples to the empty classes and 2) to minimize the inner-class feature distances between them. Thus, instead of ground truth which contains labels for the different novel classes, the DNN obtains a single OoD label together with a distance matrix, which is computed in advance. We perform several experiments for image classification and semantic segmentation, which demonstrate that a DNN can extend its own semantic space by multiple classes without having access to ground truth. AU - Uhlemeyer, Svenja AU - Lienen, Julian AU - Hüllermeier, Eyke AU - Gottschalk, Hanno ID - 44512 T2 - arXiv:2305.00983 TI - Detecting Novelties with Empty Classes ER - TY - CONF AU - Wurst, Johanna AU - Steinhoff, Timon AU - Mozgova, Iryna AU - Hassel, Thomas AU - Lachmayer, Roland ID - 44521 TI - Aspects of a Sustainability Focused Comparison of the Wire Arc Additive Manufacturing (WAAM) and the Laser Powder Bed Fusion (LPBF) Process ER - TY - CONF AU - Wurst, Johanna AU - Rosemann, Daniel AU - Mozgova, Iryna AU - Lachmayer, Roland ID - 44522 TI - Concept and Implementation of a Student Design Project for the Development of Sustainable Products ER - TY - JOUR AU - Paradies, Jan ID - 44523 IS - 7 JF - Accounts of Chemical Research KW - General Medicine KW - General Chemistry SN - 0001-4842 TI - Structure–Reactivity Relationships in Borane-Based FLP-Catalyzed Hydrogenations, Dehydrogenations, and Cycloisomerizations VL - 56 ER - TY - BOOK ED - Meier-Gräwe, Uta ED - Praetorius, Ina ED - Tecklenburg, Feline ID - 44524 SN - 9783847425922 TI - Wirtschaft neu ausrichten. Care-Initiativen in Deutschland, Österreich und der Schweiz. ER - TY - JOUR AB - IntroductionExergames are increasingly used in rehabilitation settings for older adults to train physical and cognitive abilities. To meet the potential that exergames hold, they need to be adapted to the individual abilities of the player and their training objectives. Therefore, it is important to know whether and how game characteristics affect their playing. The aim of this study is to investigate the effect of two different kinds of exergame (step game and balance game) played at two difficulty levels on brain activity and physical activity.MethodsTwenty-eight older independently living adults played two different exergames at two difficulty levels each. In addition, the same movements as during gaming (leaning sideways with feet in place and stepping sideways) were performed as reference movements. Brain activity was recorded using a 64-channel EEG system to assess brain activity, while physical activity was recorded using an accelerometer at the lower back and a heart rate sensor. Source-space analysis was applied to analyze the power spectral density in theta (4 Hz–7 Hz) and alpha-2 (10 Hz–12 Hz) frequency bands. Vector magnitude was applied to the acceleration data.ResultsFriedman ANOVA revealed significantly higher theta power for the exergaming conditions compared to the reference movement for both games. Alpha-2 power showed a more diverse pattern which might be attributed to task-specific conditions. Acceleration decreased significantly from the reference movement to the easy condition to the hard condition for both games.DiscussionThe results indicate that exergaming increases frontal theta activity irrespective of type of game or difficulty level, while physical activity decreases with increasing difficulty level. Heart rate was found to be an inappropriate measure in this population older adults. These findings contribute to understanding of how game characteristics affect physical and cognitive activity and consequently need to be taken into account when choosing appropriate games and game settings for exergame interventions. AU - Müller, Helen AU - Baumeister, Jochen AU - Bardal, Ellen Marie AU - Vereijken, Beatrix AU - Skjæret-Maroni, Nina ID - 44545 JF - Frontiers in Aging Neuroscience KW - Cognitive Neuroscience KW - Aging SN - 1663-4365 TI - Exergaming in older adults: the effects of game characteristics on brain activity and physical activity VL - 15 ER - TY - CHAP AU - Labusch, Amelie AU - Eickelmann, Birgit ED - Keane, T. ED - Fluck, A. E. ID - 43170 SN - 9783031219696 T2 - Teaching coding in K-12 schools: Research and application TI - Learning Computational Thinking in Secondary School (Year 8) in Germany in International Comparison: Results from ICILS 2018 ER - TY - CHAP AU - Schulze, Johanna AU - Drossel, Kerstin AU - Eickelmann, Birgit ED - Irion, T. ED - Böttinger, T. ED - Kammerl, R. ID - 44626 T2 - Professionalisierung für digitale Bildung im Grundschulalter - Ergebnisse des Forschungsprojekts P3DiG TI - Die inhaltliche Ausgestaltung schulischer Medienkonzepte als Gelingensbedingung digitalisierungsbezogener Schulentwicklungsprozesse ER - TY - GEN AU - Gerick, J. AU - Eickelmann, Birgit AU - Panten, B. AU - Rothärmel, A. AU - Rau, M. AU - Gottschalk, T. ID - 44627 TI - Abschlussbericht zum Forschungsprojekt ‚Gelingensbedingungen und Transfer von erfolgreichen Digitalisierungsprozessen an Schulen in Nordrhein-Westfalen (GuTe DigiSchulen NRW) ER - TY - GEN AU - Gerick, J. AU - Eickelmann, Birgit AU - Rau, M. AU - Panten, B. AU - Rothärmel, A. AU - Gottschalk, T. ID - 44628 TI - Digitalisierungsbezogene Schulentwicklungsprozesse erfolgreich gestalten. Handreichung für die schulische Arbeit zu den Ergebnissen des Forschungsprojekts GuTe DigiSchulen NRW. ER - TY - JOUR AU - Kowatz, Jannik AU - Teutenberg, Dominik AU - Meschut, Gerson ID - 35536 JF - International Journal of Adhesion and Adhesives SN - 0143-7496 TI - Optimization of inductive fast-curing of epoxy adhesive by model-based kinetics VL - 124 ER - TY - GEN AU - Salten, Alexander Heinrich Johannes AU - Al Trjman, Mohamad AU - Meschut, Gerson AU - Kenig, Eugeny Y. ID - 44228 TI - Simulation des „viscous fingering“ Effektes in Klebverbindungen ER - TY - GEN AU - Al Trjman, Mohamad AU - Meschut, Gerson AU - Salten, Alexander Heinrich Johannes AU - Kenig, Eugeny Y. ID - 44227 TI - Methodenentwicklung zur Simulation des Viscous Fingering in Klebverbindungen von stahlintensiven Mischbaustrukturen ER - TY - JOUR AB - With enhancing digitalization, condition monitoring is used in an increasing number of application fields across various industrial sectors. By its application, increased reliability as well as reduced risks and costs can be achieved. Based on different approaches, technical systems are monitored and measured data is analyzed to enable condition-based or predictive maintenance. To this end, machine learning approaches are usually implemented to diagnose the health states or predict the health index of the monitored system. However, these trained models are often black-box models, not intuitively explainable for a human. To overcome this shortcoming, a model-based approach based on physics is developed for piezoelectric bending actuators. Such a model enables a transparent representation of the system. Moreover, the model-based approach is extended by a parameter-estimation to account for sudden changes in behavior e. g. caused by occurring cracks. AU - Bender, Amelie ID - 44672 JF - Sensors and Actuators A: Physical KW - Condition Monitoring KW - Model-based approach Diagnostics KW - Varying conditions KW - Explainability KW - Piezoelectric bending actuators SN - 0924-4247 TI - Model-based condition monitoring of piezoelectric bending actuators VL - 357 ER - TY - JOUR AB - Entwicklungsprojekte stehen in einem Spannungsfeld von Volatilität, Unsicherheit, Komplexität und Ambiguität (VUCA). Resilient Requirements Engineering (RRE) ist ein vielversprechender Ansatz, diesen Rahmenbedingungen gerecht zu werden und erfolgreich zu entwickeln. Es werden Methoden aus den drei Innovationsfeldern des RRE – Vorausschau, Effizienz und Nachhaltigkeit – angewendet, um Effizienzpotenziale in der Produktentwicklung zu nutzen und frühzeitig Nachhaltigkeitsdimensionen in der Ermittlung von Stakeholderbedürfnissen zu verankern. AU - Gräßler, Iris AU - Oleff, Christian AU - Preuß, Daniel AU - Koch, Anna-Sophie ID - 44687 IS - 4 JF - Zeitschrift für wirtschaftlichen Fabrikbetrieb KW - Management Science and Operations Research KW - Strategy and Management KW - General Engineering SN - 2511-0896 TI - Resilient Requirements Engineering VL - 118 ER - TY - CONF AU - Ahmed, Qazi Arbab AU - Awais, Muhammad AU - Platzner, Marco ID - 44194 T2 - The 24th International Symposium on Quality Electronic Design (ISQED'23), San Francisco, Califorina USA TI - MAAS: Hiding Trojans in Approximate Circuits ER - TY - GEN AU - Schweichhart, Jonas ID - 44735 TI - Minimum Edge Cuts in Overlay Networks ER - TY - CHAP AU - Castenow, Jannik AU - Harbig, Jonas AU - Meyer auf der Heide, Friedhelm ID - 44769 SN - 0302-9743 T2 - Lecture Notes in Computer Science TI - Unifying Gathering Protocols for Swarms of Mobile Robots ER - TY - GEN AU - Temborius, Fiona AU - Neukötter, Moritz ID - 44101 TI - Polymere unter Dehnung: Untersuchung der Filamententstehung von Polymerblends und deren Instabilitätsentstehung durch Partikeln ER - TY - GEN AU - Almohammad, Ahmad AU - Neukötter, Moritz ID - 42997 TI - Untersuchung dehnrheologischer Eigenschaften - Suspensionen auf Basis von Polymerlösungen ER - TY - JOUR AB - Dispersion is present in every optical setup and is often an undesired effect, especially in nonlinear-optical experiments where ultrashort laser pulses are needed. Typically, bulky pulse compressors consisting of gratings or prisms are used to address this issue by precompensating the dispersion of the optical components. However, these devices are only able to compensate for a part of the dispersion (second-order dispersion). Here, we present a compact pulse-shaping device that uses plasmonic metasurfaces to apply an arbitrarily designed spectral phase delay allowing for a full dispersion control. Furthermore, with specific phase encodings, this device can be used to temporally reshape the incident laser pulses into more complex pulse forms such as a double pulse. We verify the performance of our device by using an SHG-FROG measurement setup together with a retrieval algorithm to extract the dispersion that our device applies to an incident laser pulse. AU - Geromel, René AU - Georgi, Philip AU - Protte, Maximilian AU - Lei, Shiwei AU - Bartley, Tim AU - Huang, Lingling AU - Zentgraf, Thomas ID - 44044 IS - 8 JF - Nano Letters KW - Mechanical Engineering KW - Condensed Matter Physics KW - General Materials Science KW - General Chemistry KW - Bioengineering SN - 1530-6984 TI - Compact Metasurface-Based Optical Pulse-Shaping Device VL - 23 ER - TY - JOUR AB - Hydrothermal carbonization (HTC) is an efficient thermochemical method for the conversion of organic feedstock to carbonaceous solids. HTC of different saccharides is known to produce microspheres (MS) with mostly Gaussian size distribution, which are utilized as functional materials in various applications, both as pristine MS and as a precursor for hard carbon MS. Although the average size of the MS can be influenced by adjusting the process parameters, there is no reliable mechanism to affect their size distribution. Our results demonstrate that HTC of trehalose, in contrast to other saccharides, results in a distinctly bimodal sphere diameter distribution consisting of small spheres with diameters of (2.1 ± 0.2) μm and of large spheres with diameters of (10.4 ± 2.6) μm. Remarkably, after pyrolytic post-carbonization at 1000 °C the MS develop a multimodal pore size distribution with abundant macropores > 100 nm, mesopores > 10 nm and micropores < 2 nm, which were examined by small-angle X-ray scattering and visualized by charge-compensated helium ion microscopy. The bimodal size distribution and hierarchical porosity provide an extraordinary set of properties and potential variables for the tailored synthesis of hierarchical porous carbons, making trehalose-derived hard carbon MS a highly promising material for applications in catalysis, filtration, and energy storage devices. AU - Wortmann, Martin AU - Keil, Waldemar AU - Diestelhorst, Elise AU - Westphal, Michael AU - Haverkamp, René AU - Brockhagen, Bennet AU - Biedinger, Jan AU - Bondzio, Laila AU - Weinberger, Christian AU - Baier, Dominik AU - Tiemann, Michael AU - Hütten, Andreas AU - Hellweg, Thomas AU - Reiss, Günter AU - Schmidt, Claudia AU - Sattler, Klaus AU - Frese, Natalie ID - 44837 IS - 21 JF - RSC Advances KW - General Chemical Engineering KW - General Chemistry SN - 2046-2069 TI - Hard carbon microspheres with bimodal size distribution and hierarchical porosity via hydrothermal carbonization of trehalose VL - 13 ER - TY - GEN AU - Bünder, Dirk AU - Neukötter, Moritz ID - 42999 TI - Theoretische Beschreibung des Polymerverhaltens in Polymerlösungen und - schmelzen: Simulationen anhand des Rolie-Poly-Modells ER - TY - GEN AU - Al Mamoun, Mohamed AU - Neukötter, Moritz ID - 42995 TI - Evaluation of self-built low-budget particle sensors (Study Project) ER - TY - BOOK AU - Teichert, Jeannine ID - 44246 TI - Digital occupants – Wie digitale Medien die kommunikative Aushandlung von Freundschaften verändern ER - TY - JOUR AU - Teichert, Jeannine AU - Meister, Dorothee M. ID - 44247 JF - MedienPädagogik TI - Mediale Identitätsaushandlungen deutscher MigrantInnen im Zuge des Brexit ER - TY - CHAP AU - Kruse, Iris AU - Maubach, Bernd AU - Tönsing, Johanna ED - Kruse, Iris ED - Josting, Petra ID - 42183 SN - 978-3-96848-094-7 T2 - Salah Naoura TI - "Lesungen vor Kindern sind für mich Theater" / Salah Naouras Sicht auf Wirkliches und Mögliches in Autor*innenlesungen für Kinder in der Schule VL - 12 ER - TY - CHAP AU - Kruse, Iris AU - Schäfer, Luisa Maria ED - Kruse, Iris ED - Josting, Petra ID - 42182 SN - 978-3-96848-094-7 T2 - Salah Naoura TI - Held*innenträume. Superheldinnen und Superhelden selbst erdacht / Paderborner Grundschulkinder werden auf die Begegnung mit Salah Naoura vorbereitet VL - 12 ER - TY - BOOK ED - Kruse, Iris ED - Josting, Petra ID - 42178 SN - 978-3-96848-094-7 TI - Salah Naoura VL - 12 ER - TY - JOUR AB - Ancestral reconstruction is a classic task in comparative genomics. Here, we study the genome median problem, a related computational problem which, given a set of three or more genomes, asks to find a new genome that minimizes the sum of pairwise distances between it and the given genomes. The distance stands for the amount of evolution observed at the genome level, for which we determine the minimum number of rearrangement operations necessary to transform one genome into the other. For almost all rearrangement operations the median problem is NP-hard, with the exception of the breakpoint median that can be constructed efficiently for multichromosomal circular and mixed genomes. In this work, we study the median problem under a restricted rearrangement measure called c4-distance, which is closely related to the breakpoint and the DCJ distance. We identify tight bounds and decomposers of the c4-median and develop algorithms for its construction, one exact ILP-based and three combinatorial heuristics. Subsequently, we perform experiments on simulated data sets. Our results suggest that the c4-distance is useful for the study the genome median problem, from theoretical and practical perspectives. AU - Silva, Helmuth O.M. AU - Rubert, Diego P. AU - Araujo, Eloi AU - Steffen, Eckhard AU - Doerr, Daniel AU - Martinez, Fábio V. ID - 44857 IS - 3 JF - RAIRO - Operations Research KW - Management Science and Operations Research KW - Computer Science Applications KW - Theoretical Computer Science SN - 0399-0559 TI - Algorithms for the genome median under a restricted measure of rearrangement VL - 57 ER - TY - GEN AU - Ma, Yulai AU - Mattiolo, Davide AU - Steffen, Eckhard AU - Wolf, Isaak Hieronymus ID - 44859 T2 - arXiv:2305.08619 TI - Sets of r-graphs that color all r-graphs ER - TY - JOUR AU - Lenz, Peter AU - Mahnken, Rolf ID - 44888 IS - 1 JF - PAMM KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1617-7061 TI - Thermo‐chemo‐mechanical modelling of a curing process combined with mean‐field homogenization methods at large strains VL - 22 ER - TY - CONF AU - Wolters, Dennis AU - Engels, Gregor ID - 34294 SN - 2184-4348 T2 - MODELSWARD'23 TI - Model-driven Collaborative Design of Professional Education Programmes With Extended Online Whiteboards ER - TY - GEN AU - Cheng, Chun AU - Song, Chunlei AU - Mahnken, Rolf AU - Yuan, Zhipeng AU - Yu, Liang AU - Ju, Xiaozhe ID - 44887 TI - A Non-Linear Mean-Field Debonding Model at Large Strains for the Analysis of Fibre Kinking in Ud Composites ER - TY - JOUR AU - Westermann, Hendrik AU - Mahnken, Rolf ID - 44891 IS - 1 JF - PAMM KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1617-7061 TI - A thermodynamic framework for the phase‐field approach considering carbide precipitation during phase transformations VL - 22 ER - TY - JOUR AU - Hamdoun, Ayoub AU - Mahnken, Rolf ID - 44892 IS - 1 JF - PAMM KW - Electrical and Electronic Engineering KW - Atomic and Molecular Physics KW - and Optics SN - 1617-7061 TI - A finite strain gradient theory for viscoplasticity by means of micromorphic regularization VL - 22 ER - TY - JOUR AU - Kaimann, Daniel AU - Spiess Bru, Clarissa Laura Maria AU - Frick, Bernd ID - 44897 JF - Journal of Wine Economics TI - Ratings Meet Prices: The Dynamic Relationship of Quality Signals ER - TY - CONF AB - In order to follow the 1.5 degree path of the Paris Climate Agreement, drastic greenhouse gas reduction measures are needed in the transport sector. The potential of public transport and new mobility services to reduce transport-related greenhouse gas emissions cannot yet be fully exploited, especially in rural regions. This paper presents the concept of an innovative mobility system, called NeMo.bil, that intends to fill the gap between individual and public transport to create a demand-oriented and sustainable mobility offer. The concept is based on convoy formation of autonomously driving lightweight vehicles serving the first and last mile and a larger towing vehicle carrying enough power and energy to move the convoy over longer distances at higher speeds. This combination of two different vehicles, intelligently controlled by a digital ecosystem, aims to significantly increasing energy, resource and cost efficiency. Based on an analysis of previous approaches for innovative mobility solutions, the concept is derived from a technical and sociological perspective and its potential for reducing energy demand is calculated. AU - Ostermann, Moritz AU - Behm, Jonathan AU - Marten, Thorsten AU - Tröster, Thomas AU - Weyer, Johannes AU - Cepera, Kay AU - Adelt, Fabian ED - Proff, Heike ID - 44502 SN - 9783658394370 T2 - Towards the New Normal in Mobility TI - Individualization of Public Transport – Integration of Technical and Social Dimensions of Sustainable Mobility ER -