@article{52802, abstract = {{AbstractCurrently, the fused deposition modeling (FDM) process is the most common additive manufacturing technology. The principle of the FDM process is the strand wise deposition of molten thermoplastic polymers, by feeding a filament trough a heated nozzle. Due to the strand and layer wise deposition the cooling of the manufactured component is not uniform. This leads to dimensional deviations which may cause the component to be unusable for the desired application. In this paper, a method is described which is based on the shrinkage compensation through the adaption of every single raster line in components manufactured with the FDM process. The shrinkage compensation is based on a model resulting from a DOE which considers the main influencing factors on the shrinkage behavior of raster lines in the FDM process. An in‐house developed software analyzes the component and locally applies the shrinkage compensation with consideration of the boundary conditions, e.g., the position of the raster line in the component and the process parameters. Following, a validation using a simple geometry is conducted to show the effect of the presented adaptive scaling method.}}, author = {{Moritzer, Elmar and Hecker, Felix}}, issn = {{1022-1360}}, journal = {{Macromolecular Symposia}}, keywords = {{Materials Chemistry, Polymers and Plastics, Organic Chemistry, Condensed Matter Physics}}, number = {{1}}, publisher = {{Wiley}}, title = {{{Adaptive Scaling of Components in the Fused Deposition Modeling Process}}}, doi = {{10.1002/masy.202200181}}, volume = {{411}}, year = {{2023}}, } @inproceedings{52801, author = {{Altepeter, Matthias and Wanke, Sven and Schöppner, Volker}}, booktitle = {{INTERNATIONAL CONFERENCE ON HUMANS AND TECHNOLOGY: A HOLISTIC AND SYMBIOTIC APPROACH TO SUSTAINABLE DEVELOPMENT: ICHT 2022}}, issn = {{0094-243X}}, publisher = {{AIP Publishing}}, title = {{{Analysis and modelling of the material degradation of polypropylene on the co-rotating twin-screw extruder}}}, doi = {{10.1063/5.0135824}}, year = {{2023}}, } @inbook{45111, author = {{Roesmann, Daniel and Gräßler, Iris}}, booktitle = {{The Digital Twin of Humans}}, isbn = {{9783031261039}}, pages = {{187–203}}, publisher = {{Springer International Publishing}}, title = {{{Integration of Human Factors for Assembly Systems of the Future}}}, doi = {{10.1007/978-3-031-26104-6_9}}, year = {{2023}}, } @article{48657, author = {{Moritzer, Elmar and Tölle, Lisa and Greb, C. and Haag, M.}}, issn = {{2504-477X}}, journal = {{Journal of Composites Science}}, number = {{7}}, pages = {{267}}, title = {{{Conceptions and Feasibility Study of Fiber Orientation in the Melt as Part of a Completely Circular Recycling Concept for Fiber-Reinforced Thermoplastics}}}, doi = {{10.3390/jcs7070267}}, year = {{2023}}, } @article{48750, author = {{Schöppner, Volker and Altepeter, Matthias and Austermeier, Laura and Wanke, Sven and Meinheit, Philipp}}, journal = {{Polymers 2023}}, number = {{15(9)}}, pages = {{2181}}, title = {{{Polypropylene Degradation on Co-Rotating Twin-Screw Extruders}}}, doi = {{10.3390/polym15092181}}, year = {{2023}}, } @inproceedings{34736, author = {{Schöppner, Volker and Frank, Maximilian}}, location = {{Fukuoka}}, title = {{{Investigation of the Homogenization Performance of Various Faceted Mixers and Optimization with Regard to Mixing as well as Pressure Throughput Behavior}}}, doi = {{10.1063/5.0135825}}, year = {{2023}}, } @inproceedings{29946, author = {{Schall, Christoph Wilhelm Theodor and Schöppner, Volker}}, booktitle = {{PPS36}}, keywords = {{Computing Resources Provided by the Paderborn Center for Parallel Computing}}, title = {{{Design of a test bench for measuring the degradation behavior of plastics during processing}}}, year = {{2023}}, } @article{48742, author = {{Schöppner, Volker and Schall, Christoph Wilhelm Theodor}}, journal = {{Materials}}, number = {{16(17)}}, pages = {{5891}}, title = {{{Material Characterization of Polypropylene and Polystyrene Regarding Molecular Degradation Behavior}}}, doi = {{10.3390/ma16175891}}, year = {{2023}}, } @article{48654, author = {{Moritzer, Elmar and Held, Christian}}, issn = {{0043-2288}}, journal = {{Welding in the World}}, title = {{{Characterization of additively manufactured parts for direct screwing}}}, doi = {{10.1007/s40194-023-01610-7}}, year = {{2023}}, } @inproceedings{46488, abstract = {{AbstractNew trends and technologies in product creation increase complexity, but at the same time create new potentials such as efficiency rise in task processing by Artificial Intelligence. Established models in the early phase of product creation such as the W-model or the Aachener Innovation Management model, do not fully exploit these new potentials in the field of strategic product planning and innovation management (SPPIM). For this reason, existing models are analysed in SPPIM in order to derive a requirements profile consisting of potentials and goals for a new model. A new model in SPPIM lays the foundation to support companies in enabling a more efficient task fulfilment by taking advantage of new technologies and trends. To guide the development of advanced SPPIM models, the derived potentials and goals are applied to the guideline VDI 2220:1980.}}, author = {{Gräßler, Iris and Koch, Anna-Sophie and Tusek, Alena Marie}}, booktitle = {{Proceedings of the Design Society}}, issn = {{2732-527X}}, pages = {{2915--2924}}, publisher = {{Cambridge University Press (CUP)}}, title = {{{POTENTIALS AND GOALS OF MODELS IN STRATEGIC PRODUCT PLANNING AND INNOVATION MANAGEMENT}}}, doi = {{10.1017/pds.2023.292}}, volume = {{3}}, year = {{2023}}, } @inbook{46796, author = {{Hesse, Philipp and Gräßler, Iris}}, booktitle = {{Climate Protection, Resource Efficiency, and Sustainable Engineering: Transdisciplinary Approaches to Design and Manufacturing technology.}}, editor = {{Horwath, Ilona and Schweizer, Swetlana}}, pages = {{128--138}}, publisher = {{transcript}}, title = {{{Interdependency study of design guidelines}}}, year = {{2023}}, } @inbook{46792, author = {{Hesse, Philipp and Gräßler, Iris}}, booktitle = {{Climate Protection, Resource Efficiency, and Sustainable Engineering: Transdisciplinary Approaches to Design and Manufacturing technology.}}, editor = {{Horwath, Ilona and Schweizer, Swetlana}}, pages = {{89--98}}, publisher = {{transcript}}, title = {{{Sustainable product life cycle}}}, year = {{2023}}, } @techreport{46501, author = {{Gräßler, Iris and Ovtcharova, Jivka and Dattner, Michael and Dietert, Tilko and Dietz, Patrick and Elstermann, Matthes and Fayet, Celestin and Hauck, Andreas and Häuser, Frank and Fischer, Holger and Herzog, Michael and Köhler, Christian and Lachenmaier, Jens and Lachmayer, Roland and Meussen, Bernhard and Mozgova, Iryna and Möser, Sebastian and Pottebaum, Jens and Schluse, Michael and Schneider, Jannik and Stetter, Ralf and Thurnes, Christian and Tusek, Alena Marie and Wurst, Johanna }}, title = {{{Begriffe der strategischen Produktplanung und -entwicklung. Produkt und hybride Leistung}}}, year = {{2023}}, } @article{52806, author = {{Gilbert, H. and Schürmann, M. and Liebendörfer, M. and Lawson, D. and Hodds, M.}}, issn = {{0020-739X}}, journal = {{International Journal of Mathematical Education in Science and Technology}}, keywords = {{Applied Mathematics, Education, Mathematics (miscellaneous)}}, pages = {{1--26}}, publisher = {{Informa UK Limited}}, title = {{{Post-pandemic online mathematics and statistics support: Practitioners’ opinions in Germany and Great Britain & Ireland}}}, doi = {{10.1080/0020739x.2023.2184282}}, year = {{2023}}, } @inbook{52811, author = {{Biehler, Rolf and Guntermann, Dominik and Liebendörfer, Michael and Krämer, Sandra and Schlüter, Sarah}}, booktitle = {{Beiträge zum Mathematikunterricht 2022. 56. Jahrestagung der Gesellschaft für Didaktik der Mathematik}}, editor = {{Goethe-Universität Frankfur, IDMI-Primar}}, isbn = {{978-3-95987-208-9}}, pages = {{407–410}}, publisher = {{WTM}}, title = {{{Fachdidaktisches Design von Begründungsvideos im Projekt studiVEMINTvideos}}}, doi = {{10.37626/GA9783959872089.0}}, volume = {{1}}, year = {{2023}}, } @inbook{52810, author = {{Göller, Robin and Gildehaus, Lara and Liebendörfer, Michael and Besser, Michael}}, booktitle = {{Hanse-Kolloquium zur Hochschuldidaktik der Mathematik 2021. Beiträge zum gleichnamigen Online-Symposium am 12 November 2021 aus Bochum}}, editor = {{Härterich, Jörg and Kallweit, Michael and Rolka, Katrin and Skill, Thomas}}, isbn = {{978-3-95987-264-5}}, pages = {{66–80}}, publisher = {{WTM}}, title = {{{Erfassung und Vergleich (mathematischer) Eingangsvoraussetzungen angehender Studierender verschiedener mathematikhaltiger Studiengänge}}}, year = {{2023}}, } @inbook{52809, author = {{Kempen, Leander and Liebendörfer, Michael}}, booktitle = {{Hanse-Kolloquium zur Hochschuldidaktik der Mathematik 2021. Beiträge zum gleichnamigen Online-Symposium am 12 November 2021 aus Bochum}}, editor = {{Härterich, Jörg and Kallweit, Michael and Rolka, Katrin and Skill, Thomas}}, isbn = {{978-3-95987-264-5}}, pages = {{91–106}}, publisher = {{WTM}}, title = {{{Zu digital - zu viel - zu schwer? Qualitative Einsichten in das Erleben und Handeln von Erstsemester-Studierenden der Mathematik während der Corona-Pandemie}}}, year = {{2023}}, } @inbook{52813, author = {{Schlüter, Sarah and Liebendörfer, Michael}}, booktitle = {{Beiträge zum Mathematikunterricht 2022. 56. Jahrestagung der Gesellschaft für Didaktik der Mathematik}}, editor = {{Goethe-Universität Frankfur, IDMI-Primar}}, isbn = {{978-3-95987-208-9}}, pages = {{1177–1180}}, publisher = {{WTM}}, title = {{{Bearbeitungsmuster von Studierenden im Umgang mit formalen Definitionen im Kontext konstanter Folgen}}}, doi = {{10.37626/GA9783959872089.0}}, volume = {{2}}, year = {{2023}}, } @inbook{52812, author = {{Krämer, Sandra and Liebendörfer, Michael}}, booktitle = {{Beiträge zum Mathematikunterricht 2022. 56. Jahrestagung der Gesellschaft für Didaktik der Mathematik}}, editor = {{Goethe-Universität Frankfur, IDMI-Primar}}, isbn = {{978-3-95987-208-9}}, pages = {{949–952}}, publisher = {{WTM}}, title = {{{Förderung prozeduraler Flexibilität durch Lernvideos mit interaktiven Aufgaben}}}, doi = {{10.37626/GA9783959872089.0}}, volume = {{2}}, year = {{2023}}, } @article{52807, abstract = {{Many preservice mathematics teachers lose their motivation during their first year at university. This phenomenon has been repeatedly described in recent years but is not yet fully under­stood. Since motivation may relate to different objects such as mathematics or teaching, we aim to qualitatively reconstruct different facets of the central motivational constructs of Situated-Expectancy-Value theory (intrinsic value, attainment value, utility value, cost, and expectancy of success) for preservice mathematics teachers. The analysis of longitudinal group interviews of 14 pre­service higher-secondary mathematic teachers from a German university revealed different objects of motivation (e.g., teaching mathematics, scientific mathematics, procedural mathematics, or proof-based mathematics) in preservice teachers' values and expectancy of success. Furthermore, relations between those values and expectancy of success were identified that played a significant role in preservice teachers’ motivational development over their first semester (e.g., relations of attain­ment value for scientific mathematics and psychological cost). Theoretical and practical implications towards a teaching-specific conceptualization of expectancy of success and values and value interventions are being discussed.}}, title = {{{Preservice teachers’ mathematics-related values and expectancy in the transition from school to university}}}, doi = {{10.48489/QUADRANTE.31191}}, year = {{2023}}, }