@inbook{58968, abstract = {{Clashes of heterogeneous discourses are conceptualized differently within the various strands of discourse research. To simplify, one can speak of synthesizing positions of merging discourses on the one hand and difference-based positions of heterogeneous discourses on the other. The latter position, which goes far beyond intra- and extradiscursive conflicts that can ultimately be resolved, can be related to Jean-Francois Lyotard‘s reflections on the incommensurability of discourses: Starting from an understanding that every discourse has certain inner-discursive rules and that when heterogeneous discourses meet, these rules come into conflict, questions arise about the possibilities and limits of how different discourses deal with each other and their potential incommensurability. The challenges of the encounters between heterogeneous discourses can be comprehensively and productively examined during the ‚Third Reich‘ and in relation to the genre of resistance ‚Tarnschrift‘. In these camouflage writings, heterogeneous discourses collide in a confined textual space, as the camouflage text corresponded to the rules of the prevailing Nazi discourse and the camouflaged text embedded in it corresponds to the rules of resistance discourses. This textual juxtaposition of communicative expressions of different discourses allows us to analyse procedures of discursive disruption, irritation and incommensurability. Starting from a perspective based on Lyotard‘s considerations, camouflage writings are therefore to be analysed and reflected upon as a genre of discursive disruption}}, author = {{Markewitz, Friedrich}}, booktitle = {{Discourses in/of Disruption}}, editor = {{Meier-Vieracker, Simon and Bonacchi, Silvia and Acke, Hanna and Dang-Anh, Mark and Warnke, Ingo}}, keywords = {{camouflage writing, incommensurability, "third reich", resistance}}, pages = {{39--50}}, publisher = {{IDS}}, title = {{{Tarnschriften als Widerstandsgattung der diskursiven Disruption}}}, volume = {{9}}, year = {{2025}}, } @article{54847, abstract = {{The widespread adoption of ultra-high strength steels, due to their high bulk resistivity, intensifies expulsion issues in resistance spot welding (RSW), deteriorating both the spot weld and surface quality. This study presents a novel approach to prevent expulsion by employing a preheating current. Through characteristic analysis of joint formation under critical welding current, the importance of plastic material encapsulation around the weld nugget (plastic shell) at high temperatures in preventing expulsion is highlighted. To evaluate the effect of preheating on the plastic shell and understand its mechanism in expulsion prevention, a two-dimensional welding simulation model for dissimilar ultra-high strength steel joints was established. The results showed that optimal preheating enhances the thickness of the plastic shell, improving its ability to encapsulate the weld nugget during the primary welding phase, thereby diminishing expulsion risks. Experimental validation confirmed that by employing the optimal preheating current, the maximum nugget diameter was enhanced to 9.42 mm, marking an increase of 13.4 % and extending the weldable current range by 27.5 %. Under quasi-static cross-tensile loading, joints with preheating demonstrated a 7.9 % enhancement in maximum load-bearing capacity compared to joints without preheating, showing a reproducible and complete pull-out failure mode within the heat-affected zone. This study offers a prevention method based on underlying mechanisms, providing a new perspective for future research on welding parameter optimization with the aim of expulsion prevention.}}, author = {{Yang, Keke and El-Sari, Bassel and Olfert, Viktoria and Wang, Zhuoqun and Biegler, Max and Rethmeier, Michael and Meschut, Gerson}}, issn = {{1526-6125}}, journal = {{Journal of Manufacturing Processes}}, keywords = {{Expulsion Resistance spot welding Finite element modelling Preheating Weldable current range Ultra-high strength steel}}, pages = {{489--502}}, publisher = {{Elsevier BV}}, title = {{{Expulsion prevention in resistance spot welding of dissimilar joints with ultra-high strength steel: An analysis of the mechanism and effect of preheating current}}}, doi = {{10.1016/j.jmapro.2024.06.034}}, volume = {{124}}, year = {{2024}}, } @article{56677, abstract = {{The rapid advancement in the electrification of modern vehicles has led to a continuous increase in electrical consumers for various comfort and safety functions. Ground studs serve as the electrical interface between the conductive vehicle body and the onboard network. Drawn arc stud welding is an economical and established joining process for producing ground stud joints. The circuits in the onboard network are increasingly subject to greater demands regarding current-carrying capacity and long-term stability. Reliable signal and power transmission require minimal contact resistance at the electrical connection points of the ground stud system and must withstand various operating and environmental conditions over the entire service life. In this study, a ground stud made of AlMg5, with a ZnNi-coated steel cap nut was used on a 2.0 mm thick sheet of AlMg3. The electrical connection of the ground studs was made using tinned copper cable lugs and 35 mm² cables. To analyze the electrical resistance behavior in an accelerated test, the ground studs were subjected to a superimposed load with a cyclic current profile for 1008 hours under changing climatic conditions. The results show that under the chosen operational and environmental conditions, accelerated aging and intermittent resistance behavior occur. A characteristic drop in resistance during the test indicates the failure point of the electrical connection. The cause of failure can be attributed to media penetration into the electrical contact zone. A failure of the electrical connection was observed after 512 hours.}}, author = {{Haak, Viktor and Yang, Keke and Meschut, Gerson}}, issn = {{2666-3309}}, journal = {{Journal of Advanced Joining Processes}}, keywords = {{Stud welding, aluminum grounding connection, electrical resistance, superimposed load}}, publisher = {{Elsevier BV}}, title = {{{Investigation of the electrical quality and long-term stability of aluminum ground stud connections in automotive applications}}}, doi = {{10.1016/j.jajp.2024.100262}}, volume = {{10}}, year = {{2024}}, } @inproceedings{63497, author = {{Förster, Nikolas and Wallscheid, Oliver and Schafmeister, Frank}}, booktitle = {{2024 IEEE Design Methodologies Conference (DMC)}}, keywords = {{MOSFET, Thermal resistance, Surface resistance, Bridge circuits, Zero voltage switching, Pareto optimization, Capacitance, Numerical simulation, Optimization, Resistance heating, Pareto Optimization, Dual-Active Bridge, ZVS, Inductor Optimization, Transformer Optimization, Heat Sink Optimization}}, pages = {{1--8}}, title = {{{Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection}}}, doi = {{10.1109/DMC62632.2024.10812131}}, year = {{2024}}, } @article{37155, abstract = {{Artificial intelligence (AI) has moved beyond the planning phase in many organisations and it is often accompanied by uncertainties and fears of job loss among employees. It is crucial to manage employees{\textquoteright} attitudes towards the deployment of an AI-based technology effectively and counteract possible resistance behaviour. We present lessons learned from an industry case where we conducted interviews with affected employees. We evaluated our results with managers across industries and found that that the deployment of AI-based technologies does not differ from other IT, but that the change is perceived differently due to misguided expectations. }}, author = {{Stieglitz, Stefan and Möllmann (Frick), Nicholas R. J. and Mirbabaie, Milad and Hofeditz, Lennart and Ross, Björn}}, issn = {{1477-9064}}, journal = {{International Journal of Management Practice}}, keywords = {{Artificial Intelligence, Change Management, Resistance, AI-Driven Change, AI Deployment, AI Perception}}, publisher = {{Inderscience}}, title = {{{Recommendations for Managing AI-Driven Change Processes: When Expectations Meet Reality}}}, year = {{2021}}, } @inproceedings{9676, abstract = {{Employees’ acceptance and resistance of new technology and social structure are frequently examined in Information Systems research. Resistance is expressed in various forms, including a lack of cooperation, workarounds, and physical sabotage. Workarounds, in particular, have a dual nature and can refer to both, undesirable behavior that contradicts organizational struc-ture and to desired organizational innovation. While antecedents and different forms of worka-rounds have been explored, literature has remained silent on how and why workarounds of an individual employee can affect activities performed by other employees and thereby, change work routines on an organizational level. Since employees’ day-to-day performances constitute the ostensive patterns of a routine, we argue that workarounds will not only impact performanc-es of adjacent routines, but also transform the organization as a social structure. With a prelim-inary set of qualitative data from 24 interviews, we used a multiple case study design to concep-tualize six patterns that illustrate how and why workarounds can spread through an organiza-tion. The patterns are systematized by a framework that considers three types of collaboration and two types of handoffs across routines. This first evidence points at the nature of complex desired and undesired consequences that can emerge through workarounds performed in an organization.}}, author = {{Wolf, Verena and Beverungen, Daniel}}, booktitle = {{Proceedings of the 27th European Conference on Information Systems (ECIS)}}, keywords = {{Resistance, Workaround, Organizational Routines, Structuration Theory}}, location = {{Stockholm-Uppsala, Sweden}}, title = {{{Conceptualizing the Impact of Workarounds – An Organizational Routines’ Perspective}}}, year = {{2019}}, }