@article{58511, abstract = {{We investigate differences in bribing decisions among two generations from East and West Germany in a bribery game conducted as an online study (N=168). This way, we aim to explore moral considerations of individuals influenced by two formerly different institutional systems. We find a higher propensity to bribe among young Germans compared to the older generation. Young East Germans even reveal a slightly greater inclination to bribe than their West German counterparts. We conclude that preferences for personal favors may be induced among young East Germans given the tense relationship between market opportunities and conveyed cultural traits of a socialist imprint.}}, author = {{Auer, Thorsten Fabian and Berg, Timo and Hoffmann, Christin}}, issn = {{1824-2979}}, journal = {{European Journal of Comparative Economics}}, keywords = {{Moral behavior, Corruption, Intra- and intergenerational study, Institutional transformation, Reunification}}, number = {{2}}, pages = {{211--264}}, title = {{{Inter- and intragenerational differences in corrupt behavior: The development of morals after German reunification}}}, doi = {{10.25428/1824-2979/032}}, volume = {{21}}, year = {{2024}}, } @article{54416, abstract = {{Die Studienlage zum Thema Bewegung, Spiel und Sport im schulischen Ganztag in Deutschland zeigt sich vielseitig. Das Forschungsfeld ist neben wenigen umfassenden, überregionalen Studien durch kleinere Studien mit spezifischen inhaltlichen Schwerpunkten gekennzeichnet. Das vorliegende Scoping Review zielt darauf ab, die Erkenntnisse des Forschungsfeldes der circa vergangenen 20 Jahre zu systematisieren. Leitend ist die Forschungsfrage „Wie stellt sich der aktuelle Forschungsstand im Feld von Bewegung, Spiel und Sport im schulischen Ganztag in Deutschland dar?“ Auf Basis einer systematischen Literaturrecherche in fünf Datenbanken konnten aus 2365 Publikationen 52 in die Analyse eingeschlossen werden. Überwiegend wurden regionale Querschnittsstudien mit spezifischem Fokus durchgeführt. Die Studien befassen sich zumeist mit den Rahmenbedingungen von Bewegung, Spiel und Sport im Ganztag sowie mit den Charakteristika von Bewegung, Spiel und Sport im Ganztag. Die Analyse verdeutlicht unter anderem den Mangel an längsschnittlichen Studien sowie den Forschungsbedarf im Bereich der Qualität von Bewegung in diesem Setting.}}, author = {{Noetzel, Ida and Becker, Linda and Gräfin v. Plettenberg, Elisabeth and Kehne, Miriam}}, issn = {{2730-7212}}, journal = {{Forum Kinder- und Jugendsport}}, keywords = {{Review, Ganztag, Bewegung, Spiel, Sport, Forschungsstand}}, number = {{1}}, pages = {{70--83}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Forschungsstand zu Bewegung, Spiel und Sport im schulischen Ganztag in Deutschland: ein Scoping Review}}}, doi = {{10.1007/s43594-024-00123-5}}, volume = {{5}}, year = {{2024}}, } @article{52254, author = {{Bührmann, Tobias and Magyar, Balázs}}, isbn = {{978-3-381-10091-0}}, journal = {{Tribologie und Schmierungstechnik}}, number = {{6/23}}, pages = {{34--42}}, title = {{{Approximate simulation of the hysteresis friction of radial shaft seals}}}, doi = {{10.24053/TuS-2023-0038}}, volume = {{70. Jahrgang}}, year = {{2024}}, } @inproceedings{57202, author = {{Ostermann, Moritz and Marten, Thorsten and Tröster, Thomas}}, booktitle = {{16th Biennial International Conference on EcoBalance}}, keywords = {{Life Cycle Sustainability Assessment, Prospective Life Cycle Assessment, Life Cycle Engineering, On-Demand Mobility, Mobility Services}}, location = {{Sendai, Japan}}, title = {{{Prospective Life Cycle Assessment of Lightweight Structures in Vehicles for On-Demand Mobility Systems}}}, year = {{2024}}, } @inproceedings{55403, abstract = {{In this paper we consider the interactive processes by which an explainer and an explainee cooperate to produce an explanation, which we refer to as co-construction. Explainable Artificial Intelligence (XAI) is concerned with the development of intelligent systems and robots that can explain and justify their actions, decisions, recommendations, and so on. However, the cooperative construction of explanations remains a key but under-explored issue. This short paper proposes an architecture for intelligent systems that promotes a co-constructive and interactive approach to explanation generation. By outlining its basic components and their specific roles, we aim to contribute to the advancement of XAI computational frameworks that actively engage users in the explanation process.}}, author = {{Buschmeier, Hendrik and Cimiano, Philipp and Kopp, Stefan and Kornowicz, Jaroslaw and Lammert, Olesja and Matarese, Marco and Mindlin, Dimitry and Robrecht, Amelie Sophie and Vollmer, Anna-Lisa and Wagner, Petra and Wrede, Britta and Booshehri, Meisam}}, booktitle = {{Proceedings of the 2024 Workshop on Explainability Engineering}}, location = {{Lisbon, Portugal}}, pages = {{20--25}}, publisher = {{ACM}}, title = {{{Towards a Computational Architecture for Co-Constructive Explainable Systems}}}, doi = {{10.1145/3648505.3648509}}, year = {{2024}}, } @article{59132, author = {{Moritzer, Elmar and Beutelspacher, Jonas and Elsner, Christian Lennart}}, journal = {{Polymer Composites}}, keywords = {{Filled polymers, Fused Filament Fabrication, weld seam quality, weld seam strength}}, title = {{{Investigation of the weld seam quality of particle filled polymers in the fused filament fabrication process}}}, doi = {{10.1002/pc.29101}}, year = {{2024}}, } @article{59135, abstract = {{Compounding is an important step in processing base polymers and is used to incorporate various additives into a polymer. For this purpose, different screw elements are used for dispersive and distributive mixing on a co-rotating twin-screw extruder. Optimising the screw configuration requires precise knowledge of the screw elements’ mixing properties, which have not been thoroughly investigated. This study analyses the mixing behaviour of individual screw elements regarding dispersive and distributive mixing using 3D CFD flow simulations with subsequent particle tracking. For distributive mixing, the particle distribution behind the screw elements in the XY plane is analysed and the mixing index MQ, which relates the standard deviation and the mean value of the triangular areas between the particles, is calculated. For dispersive mixing, the maximum shear stress on the particle path and the integral of the shear stress over the residence time of each individual particle are determined. The results show that screw element geometry and rotation speed have a significant influence on dispersive and distributive mixing. In addition, better dispersive mixing is achievable with highly viscous materials. These findings enable the optimisation of the mixing zone of a co-rotating twin-screw extruder for the efficient mixing of mineral fillers.}}, author = {{Oldemeier, Jan Philipp and Schöppner, Volker}}, journal = {{Polymers}}, keywords = {{Compoundieren, disperses Mischen, distributives Mischen, Schneckenelemente}}, number = {{21}}, title = {{{Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking}}}, doi = {{10.3390/polym16212952}}, volume = {{16}}, year = {{2024}}, } @inproceedings{59101, author = {{Schöppner, Volker and Arndt, Theresa}}, booktitle = {{The 2nd International Symposium on Plastics Technology}}, editor = {{Proceedings, AIP-Conference}}, isbn = {{9780735448452}}, publisher = {{{AIP Publishing}}}, title = {{{Development of scale-up rules for the quasi-simultaneous laser transmission welding (LTW) of thermoplastics}}}, volume = {{355}}, year = {{2024}}, } @article{59129, author = {{Schöppner, Volker and Trienens, Dorte and Bäck, Thomas and Tsi-Nda Lontsi, Seraphin and Krause, Peter and Budde, Finn}}, journal = {{Polymers}}, number = {{9}}, pages = {{1197}}, title = {{{Method Development for the Prediction of Melt Quality in the Extrusion Process}}}, doi = {{10.3390/polym16091197}}, volume = {{16}}, year = {{2024}}, } @article{59134, author = {{Austermeier, Laura and Schöppner, Volker}}, journal = {{37th International Conference of the Polymer Processing Society}}, keywords = {{Compoundieren, Doppelschneckenextruder, Drehmoment, Energieeintrag, Feststoffförderung, Schneckenelemente}}, title = {{{Load Differences between the Screws in the Solids Conveying Zone of Co-Rotating Twin-Screw Extruders}}}, year = {{2024}}, } @article{59103, author = {{Gevers, Karina and Schöppner, Volker and Seefried, A. and Gehde, M. and Albrecht, M.}}, journal = {{Joining Plastics}}, number = {{2}}, pages = {{108}}, title = {{{Influences of the convective heating on the material damage to plastics during hot gas series welding}}}, volume = {{18}}, year = {{2024}}, } @article{59105, author = {{Gevers, Karina and Schöppner, Volker and Schraa, L. and Toews, P. and Decker, J. and Uhlig, K. and Stommel, Michael}}, journal = {{Welding in the World}}, title = {{{Effects of different heating strategies on the joint properties during infrared welding of glass fiber reinforced polyamide 6}}}, year = {{2024}}, } @article{59133, author = {{Austermeier, Laura and Schöppner, Volker}}, journal = {{Book of Abstracts of the 5th Aspherix(R) & CFDEM(R) Conference}}, keywords = {{Compoundieren, Doppelschneckenextruder, Drehmoment, Energieeintrag}}, publisher = {{ DCS Computing GmbH, TU Graz Institut für Prozess- und Partikeltechnik}}, title = {{{The Potential of DEM Simulation for the Prediction of Torque Differences in the Melting Zone of Co-rotating Twin-Screw Extruders}}}, doi = {{10.3217/978-3-99161-020-5}}, year = {{2024}}, } @inproceedings{59123, author = {{Brüning, Florian and Landgräber, Jan}}, booktitle = {{Annual Technical Conference of the Society of Plastics Engineers (ANTEC 2024)}}, keywords = {{extrusion, Feststoffförderung, Reibwerte, Spritzgießen}}, title = {{{Material and process effects on the tribological behavior of polymer bulk materials}}}, year = {{2024}}, } @inproceedings{59128, author = {{Brüning, Florian and Schmidt, Leon}}, booktitle = {{20. Kautschuk-Herbstkolloquium (KHK)}}, editor = {{Institut für Kautschuktechnologie e.V., Deutsches}}, keywords = {{extrusion, Kautschuk, Simulation}}, title = {{{Investigation of alternative screw concepts for rubber extrusion}}}, year = {{2024}}, } @article{59104, author = {{Gevers, Karina and Schöppner, Volker and Albrecht, M. and Gehde, Michael and Seefried, A.}}, journal = {{Joining Plastics}}, pages = {{108--114}}, title = {{{Einfluss der konvektiven Erwärmung auf die Materialschädigung von Kunststoffen beim Warmgasserienschweißen}}}, year = {{2024}}, } @inproceedings{59122, author = {{Brüning, Florian and Kleinschmidt, Dennis and Petzke, Jonas Dirk Rudolf Helmut}}, booktitle = {{39th International Conference of the Polymer Processing Society}}, keywords = {{Rheologie, Viskosität, Wandgleiten}}, title = {{{Improvement of an alternative method for the correction of wall slip effects in rheological studies of filled rubber compounds}}}, year = {{2024}}, } @inproceedings{59126, author = {{Petzke, Jonas Dirk Rudolf Helmut and Brüning, Florian and Kleinschmidt, Dennis}}, booktitle = {{39th International Conference of the Polymer Processing Society}}, keywords = {{Kautschuk, Mikrowelle, Simulation, Vulkanisation}}, title = {{{Simulative Approach for Predicting the Heating Behavior of Elastomers in the Solid-State Microwave Heating Process}}}, year = {{2024}}, } @article{59243, abstract = {{Most single-screw extruders used in the plastics processing industry are plasticizing extruders, designed to melt solid pellets or powders within the screw channel during processing. In many cases, the efficiency of the melting process acts as the primary throughput-limiting factor. If the material melts too late in the process, it may not be sufficiently mixed, resulting in substandard product quality. Accurate prediction of the melting process is therefore essential for efficient and cost-effective machine design. A practical method for engineers is the modeling of the melting process using mathematical–physical models that can be solved without complex numerical methods. These models enable rapid calculations while still providing sufficient predictive accuracy. This study revisits the modified Tadmor model by Potente, which describes the melting process and predicts the delay-zone length, extending from the hopper front edge to the point of melt pool formation. Based on extensive experimental investigations, this model is adapted by redefining the flow temperatures at the phase boundary and accounting for surface porosity at the beginning of the melting zone. Additionally, the effect of variable solid bed dynamics on model accuracy is examined. Significant model improvements were achieved by accounting for reduced heat flow into the solid bed due to the porous surface structure in the solid conveying zone, along with a new assumption for the flow temperature at the phase boundary between the solid bed and melt film.}}, author = {{Schöppner, Volker and Brüning, Florian and Knaup, Felix}}, journal = {{Polymers}}, keywords = {{delay zone, extrusion, melting modeling}}, number = {{22}}, pages = {{3130}}, title = {{{Improvement in an Analytical Approach for Modeling the Melting Process in Single-Screw Extruders}}}, doi = {{10.3390/polym16223130}}, volume = {{16}}, year = {{2024}}, } @article{59269, abstract = {{Ferroelectric materials play a crucial role in a broad range of technologies due to their unique properties that are deeply connected to the pattern and behavior of their ferroelectric (FE) domains. Chief among them, barium titanate (BaTiO3; BTO) sees widespread applications such as in electronics but equally is a ferroelectric model system for fundamental research, e.g., to study the interplay of such FE domains, the domain walls (DWs), and their macroscopic properties, owed to BTO’s multiple and experimentally accessible phase transitions. Here, we employ Second Harmonic Generation Microscopy (SHGM) to in situ investigate the cubic-to-tetragonal (at ∼126°C) and the tetragonal-to-orthorhombic (at ∼5°C) phase transition in single-crystalline BTO via three-dimensional (3D) DW mapping. We demonstrate that SHGM imaging provides the direct visualization of FE domain switching as well as the domain dynamics in 3D, shedding light on the interplay of the domain structure and phase transition. These results allow us to extract the different transition temperatures locally, to unveil the hysteresis behavior, and to determine the type of phase transition at play (first/second order) from the recorded SHGM data. The capabilities of SHGM in uncovering these crucial phenomena can easily be applied to other ferroelectrics to provide new possibilities for in situ engineering of advanced ferroic devices.}}, author = {{Kirbus, Benjamin and Seddon, Samuel D. and Kiseleva, Iuliia and Beyreuther, Elke and Rüsing, Michael and Eng, Lukas M.}}, issn = {{0021-8979}}, journal = {{Journal of Applied Physics}}, number = {{15}}, publisher = {{AIP Publishing}}, title = {{{Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy}}}, doi = {{10.1063/5.0237769}}, volume = {{136}}, year = {{2024}}, }