@article{51737, author = {{Kullmer, Gunter and Weiß, Deborah and Schramm, Britta}}, issn = {{0013-7944}}, journal = {{Engineering Fracture Mechanics}}, keywords = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}}, publisher = {{Elsevier BV}}, title = {{{An alternative and robust formulation of the fatigue crack growth rate curve for long cracks}}}, doi = {{10.1016/j.engfracmech.2023.109826}}, volume = {{296}}, year = {{2024}}, } @article{52218, author = {{Lenz, Peter and Mahnken, Rolf}}, issn = {{0020-7683}}, journal = {{International Journal of Solids and Structures}}, keywords = {{Applied Mathematics, Mechanical Engineering, Mechanics of Materials, Condensed Matter Physics, General Materials Science, Modeling and Simulation}}, publisher = {{Elsevier BV}}, title = {{{Multiscale simulation of polymer curing of composites combined mean-field homogenisation methods at large strains}}}, doi = {{10.1016/j.ijsolstr.2023.112642}}, volume = {{290}}, year = {{2024}}, } @article{41929, abstract = {{AbstractThe advent of social media and its commodification have created a never-ending feedback loop between businesses and their customers. In this context, constant negative Word-of-Mouth (NWOM) may jeopardize a corporate image and cause defensiveness in corporate communication. This paper presents a case study of several customer service accounts of the railway company Deutsche Bahn on Twitter to investigate the management and control of constant NWOM and the impact of accountability strategies on customers’ perception of the firm. To this end, a sample of 36,757 Twitter postings was drawn and analyzed by means of sentiment and content analysis techniques. The findings suggest that the perceived accountability towards the firm declined in case of an attitude shift towards the user. In contrast, the firm was being held accountable more insistently after expressed defensiveness, regardless of the firm’s actual accountableness. With this paper, we introduce the notion of accountability management and an accompanying theoretical framework to the literature. This provides a novel perspective on constant NWOM countermeasures for organizations that are part of ‘toxic’ industries or face unrightfully claimed accusations, i.e., when being held accountable for outer circumstances beyond their control.}}, author = {{Mirbabaie, Milad and Stieglitz, Stefan and Marx, Julian}}, issn = {{2366-6153}}, journal = {{Schmalenbach Journal of Business Research}}, keywords = {{Management of Technology and Innovation, General Economics, Econometrics and Finance, General Business, Management and Accounting}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Negative Word of Mouth On Social Media: A Case Study of Deutsche Bahn’s Accountability Management}}}, doi = {{10.1007/s41471-022-00152-w}}, year = {{2023}}, } @article{34814, author = {{Hanusch, Maximilian}}, issn = {{0008-414X}}, journal = {{Canadian Journal of Mathematics}}, keywords = {{extension of differentiable maps}}, number = {{1}}, pages = {{170--201}}, publisher = {{Canadian Mathematical Society}}, title = {{{A $C^k$-seeley-extension-theorem for Bastiani’s differential calculus}}}, doi = {{10.4153/s0008414x21000596}}, volume = {{75}}, year = {{2023}}, } @inproceedings{31849, author = {{Hoffmann, Max and Biehler, Rolf}}, booktitle = {{Proceedings of the Fourth Conference of the International Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)}}, editor = {{Trigueros, Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}}, keywords = {{Teaching and learning of specific topics in university mathematics, Transition to, across and from university mathematics, Student Teachers, Geometry, Congruence, Double Discontinuity.}}, publisher = {{University of Hannover and INDRUM.}}, title = {{{Student Teachers ’ Knowledge of Congruence before a University Course on Geometry}}}, year = {{2023}}, } @article{43154, author = {{Wippermann, Jan and Meschut, Gerson and Koshukow, Wikentij and Liebsch, Alexander and Gude, Maik and Minch, Steven and Kolbe, Björn}}, issn = {{0043-2288}}, journal = {{Welding in the World}}, keywords = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Correction: Thermal influence of resistance spot welding on a nearby overmolded thermoplastic–metal joint}}}, doi = {{10.1007/s40194-023-01499-2}}, year = {{2023}}, } @article{34832, author = {{Hanusch, Maximilian}}, journal = {{Annals of Global Analysis and Geometry}}, keywords = {{Lax equation, generalized Baker-Campbell-Dynkin-Hausdorff formula, regularity of Lie groups}}, number = {{21}}, title = {{{The Lax Equation and Weak Regularity of Asymptotic Estimate Lie Groups}}}, doi = {{10.1007/s10455-023-09888-y}}, volume = {{63}}, year = {{2023}}, } @article{39057, author = {{Wippermann, Jan and Meschut, Gerson and Koschukow, Wikentji and Liebsch, Alexander and Gude, Maik and Minch, Steven and Kolbe, Björn}}, issn = {{0043-2288}}, journal = {{Welding in the World}}, keywords = {{Metals and Alloys, Mechanical Engineering, Mechanics of Materials}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Thermal influence of resistance spot welding on a nearby overmolded thermoplastic–metal joint}}}, doi = {{10.1007/s40194-023-01465-y}}, year = {{2023}}, } @article{45484, abstract = {{AbstractGraffiti is an urban phenomenon that is increasingly attracting the interest of the sciences. To the best of our knowledge, no suitable data corpora are available for systematic research until now. The Information System Graffiti in Germany project (Ingrid) closes this gap by dealing with graffiti image collections that have been made available to the project for public use. Within Ingrid, the graffiti images are collected, digitized and annotated. With this work, we aim to support the rapid access to a comprehensive data source on Ingrid targeted especially by researchers. In particular, we present IngridKG, an RDF knowledge graph of annotated graffiti, abides by the Linked Data and FAIR principles. We weekly update IngridKG by augmenting the new annotated graffiti to our knowledge graph. Our generation pipeline applies RDF data conversion, link discovery and data fusion approaches to the original data. The current version of IngridKG contains 460,640,154 triples and is linked to 3 other knowledge graphs by over 200,000 links. In our use case studies, we demonstrate the usefulness of our knowledge graph for different applications.}}, author = {{Sherif, Mohamed Ahmed and da Silva, Ana Alexandra Morim and Pestryakova, Svetlana and Ahmed, Abdullah Fathi and Niemann, Sven and Ngomo, Axel-Cyrille Ngonga}}, issn = {{2052-4463}}, journal = {{Scientific Data}}, keywords = {{Library and Information Sciences, Statistics, Probability and Uncertainty, Computer Science Applications, Education, Information Systems, Statistics and Probability}}, number = {{1}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{IngridKG: A FAIR Knowledge Graph of Graffiti}}}, doi = {{10.1038/s41597-023-02199-8}}, volume = {{10}}, year = {{2023}}, } @article{46018, author = {{Su, Ran and Zhang, Jiahui and Wong, Vienna and Zhang, Dawei and Yang, Yong and Luo, Zheng‐Dong and Wang, Xiaojing and Wen, Hui and Liu, Yang and Seidel, Jan and Yang, Xiaolong and Pan, Ying and Li, Fa‐tang}}, issn = {{0935-9648}}, journal = {{Advanced Materials}}, keywords = {{Mechanical Engineering, Mechanics of Materials, General Materials Science}}, publisher = {{Wiley}}, title = {{{Engineering Sub‐Nanometer Hafnia‐Based Ferroelectric to Break The Scaling Relation for High‐Efficiency Piezocatalytic Water Splitting}}}, doi = {{10.1002/adma.202303018}}, year = {{2023}}, } @inproceedings{46451, abstract = {{New technologies and materials carry significant potential for sustainable production and use of products. As an example, Additive Manufacturing technologies and materials promise lightweight design and energy efficient use of parts. Exhausting the full potential requires: a) consideration of uncertainties with respect to future capabilities, and b) upgradeable design guidelines to cover advancements consistently. The proposed approach merges concepts of Design-for-X with foresight algorithms of Scenario-Technique to derive actionable knowledge. It is validated by an application in the field of Additive Manufacturing, namely Metal Fused Deposition Modelling. Engineers benefit from the intuitive access to heterogeneous types of sustainability related information.}}, author = {{Gräßler, Iris and Mozgova, Iryna and Pottebaum, Jens and Ott, Manuel and Jung, Philipp and Hesse, Philipp}}, booktitle = {{Procedia CIRP ICME}}, editor = {{Teti, Roberto}}, keywords = {{Design-for-X, Scenario-Technique, sustainability, uncertainty, Life-Cycle Engineering, Additive Manufacturing, Circular Economy}}, location = {{Gulf of Naples}}, publisher = {{Elsevier}}, title = {{{Handling of uncertainties in the design of sustainable Additive Manufacturing products by merging Design-for-X and Scenario-Technique}}}, year = {{2023}}, } @article{46483, abstract = {{The demands on joining technology are constantly increasing due to the consistent lightweight construction and the associated increasing material mix. To meet these requirements, the adaptability of the joining processes must be improved to be able to process different material combinations and to react to challenges caused by deviations in the process chain. One example of a highly adaptable process due to the two-step process sequence is thermomechanical joining with Friction Spun Joint Connectors (FSJCs) that can be individually adapted to the joint. In this paper, the potentials of the adaption in the two-stage joining process with aluminium auxiliary joining elements are investigated. To this end, it is first investigated whether a thermomechanical forming process can be used to achieve a uniform and controlled manufacturing regarding the process variable of the temperature as well as the geometry of the FSJC. Based on the successful proof of the high and good repeatability in the FSJC manufacturing, possibilities, and potentials for the targeted influencing of the process and FSJC geometry are shown, based on an extensive variation of the process input variables (delivery condition and thus mechanical properties of the raw parts as well as the process parameters of rotational speed and feed rate). Here it can be shown that above all, the feed rate of the final forming process has the strongest influence on the process and thus also offers the strongest possibilities for influencing it.}}, author = {{Borgert, Thomas and Henke, Maximilian and Homberg, Werner}}, issn = {{2504-4494}}, journal = {{Journal of Manufacturing and Materials Processing}}, keywords = {{Industrial and Manufacturing Engineering, Mechanical Engineering, Mechanics of Materials}}, number = {{4}}, publisher = {{MDPI AG}}, title = {{{Investigations on the Influences of the Thermomechanical Manufacturing of Aluminium Auxiliary Joining Elements}}}, doi = {{10.3390/jmmp7040147}}, volume = {{7}}, year = {{2023}}, } @article{47122, abstract = {{AbstractFeCo alloys are important materials used in pumps and motors in the offshore oil and gas drilling industry. These alloys are subjected to marine environments with a high NaCl concentration, therefore, corrosion and catastrophic failure are anticipated. So, the surface dissolution of additively manufactured FeCo samples is investigated in a quasi-in situ manner, in particular, the pitting corrosion in 5.0 wt pct NaCl solution. The local dissolution of the same sample region is monitored after 24, 72, and 168 hours. Here, the formation of rectangular and circular pits of ultra-fine dimensions (less than 0.5 µm) is observed with increasing immersion time. In addition, the formation of a corrosion-inhibiting surface layer is detected on the sample surface. Surface dissolution leads to a change in the surface structure, however, no change in grain shape or grain size is noticed. The surface topography after local dissolution is correlated to the grain orientation. Quasi-in situ analysis shows the preferential dissolution of high-angle grain boundaries (HAGBs) leading to a change in the fraction of HAGBs and low-angle grain boundaries fraction (LAGBs). For the FeCo sample, a potentiodynamic polarisation test reveals a corrosion potential (Ecorr) of − 0.475 V referred to the standard hydrogen electrode (SHE) and a corrosion exchange current density (icorr) of 0.0848 A/m2. Furthermore, quasi-in situ experiments showed that grains oriented along certain crystallographic directions are corroding more compared to other grains leading to a significant decrease in the local surface height. Grains with a plane normal close to the $$\langle {1}00\rangle$$ 100 direction reveal lower surface dissolution and higher corrosion resistance, whereas planes normal close to the $$\langle {11}0\rangle$$ 110 direction and the $$\langle {111}\rangle$$ 111 direction exhibit a higher surface dissolution.}}, author = {{Pramanik, Sudipta and Krüger, Jan Tobias and Schaper, Mirko and Hoyer, Kay-Peter}}, issn = {{1073-5623}}, journal = {{Metallurgical and Materials Transactions A}}, keywords = {{Metals and Alloys, Mechanics of Materials, Condensed Matter Physics}}, publisher = {{Springer Science and Business Media LLC}}, title = {{{Quasi-In Situ Localized Corrosion of an Additively Manufactured FeCo Alloy in 5 Wt Pct NaCl Solution}}}, doi = {{10.1007/s11661-023-07186-7}}, year = {{2023}}, } @article{46495, author = {{Wu, Shuang and Delp, Alexander and Freund, Jonathan and Walther, Frank and Haubrich, Jan and Löbbecke, Miriam and Tröster, Thomas}}, issn = {{0021-8464}}, journal = {{The Journal of Adhesion}}, keywords = {{Materials Chemistry, Surfaces, Coatings and Films, Surfaces and Interfaces, Mechanics of Materials, General Chemistry}}, pages = {{1--29}}, publisher = {{Informa UK Limited}}, title = {{{Adhesion properties of the hybrid system made of laser-structured aluminium EN AW 6082 and CFRP by co-bonding-pressing process}}}, doi = {{10.1080/00218464.2023.2245758}}, year = {{2023}}, } @article{46494, author = {{Freund, Jonathan and Löbbecke, Miriam and Delp, Alexander and Walther, Frank and Wu, Shuang and Tröster, Thomas and Haubrich, Jan}}, issn = {{0021-8464}}, journal = {{The Journal of Adhesion}}, keywords = {{Materials Chemistry, Surfaces, Coatings and Films, Surfaces and Interfaces, Mechanics of Materials, General Chemistry}}, pages = {{1--31}}, publisher = {{Informa UK Limited}}, title = {{{Relationship between laser-generated micro- and nanostructures and the long-term stability of bonded epoxy-aluminum joints}}}, doi = {{10.1080/00218464.2023.2223475}}, year = {{2023}}, } @article{47155, abstract = {{»Über Geld spricht man nicht.« Diese Benimmregel erweist sich beim Blick in die Ver- gangenheit als Illusion. Keineswegs war Geld grundsätzlich ein Tabuthema zwischen- menschlicher Kommunikation. Ganz im Gegenteil: Mit dem Reden über Geld wird dieses mit Bedeutung aufgeladen. Die Autor*innen dieses Themenheftes untersuch en Gelddis- kurse und die Zuschreibungen von Bedeutung an Geld in der internationalen Geschichte.}}, author = {{Schönhärl, Korinna and Schotters, Frederike and Thiemeyer, Guido}}, journal = {{Werkstatt Geschichte}}, keywords = {{Financial History, Discourse Analysis, History of Money}}, title = {{{Editorial}}}, volume = {{88}}, year = {{2023}}, } @misc{47154, abstract = {{»Über Geld spricht man nicht.« Diese Benimmregel erweist sich beim Blick in die Vergangenheit als Illusion. Keineswegs war Geld grundsätzlich ein Tabuthema zwischenmenschlicher Kommunikation. Ganz im Gegenteil: Mit dem Reden über Geld wird dieses mit Bedeutung aufgeladen. Die Autor*innen dieses Themenheftes untersuchen Gelddiskurse und die Zuschreibungen von Bedeutung an Geld in der internationalen Geschichte.}}, booktitle = {{Werkstatt Geschichte}}, editor = {{Schönhärl, Korinna and Schotters, Frederike and Thiemeyer, Guido}}, keywords = {{Financial History, Discourse Analysis, History of Money}}, title = {{{Reden über Geld}}}, volume = {{88}}, year = {{2023}}, } @inbook{48165, abstract = {{Paying taxes is a field of economic activity that has always been highly morally charged: the question of who pays how much or can avoid or evade the prescribed payments is always closely related to debate about a fair societal distribution of burdens. In the process of moralisation, therefore, faith communities such as the Catholic Church also repeatedly seized the floor to propagate certain norms. The article examines the contributions of theologians from Spain, the USA and West Germany in the 1940s and 1950s. It concludes that the norms of taxation they propagated differed greatly depending on the institutional and economic frameworks within which they operated. The analysis proves taxation to be a field of economic action and societal dispute where economics and morality are indissolubly interconnected.}}, author = {{Schönhärl, Korinna}}, booktitle = {{ Reassessing the Moral Economy Religion and Economic Ethics from Ancient Greece to the 20th Century}}, editor = {{Skambraks, Tanja and Lutz, Martin}}, isbn = {{9783031298349}}, keywords = {{Tax history, religious history: financial history, catholic church, history of economic thought}}, pages = {{237--258}}, publisher = {{Springer}}, title = {{{Tax Morale and the Church: How Catholic Clergies Adapted Norms of Paying Taxes to Secular Institutions (1940s–1950s)}}}, year = {{2023}}, } @article{48517, author = {{Hubner-Benz, Sylvia and Baum, Matthias}}, issn = {{1742-5360}}, journal = {{International Journal of Entrepreneurial Venturing}}, keywords = {{Management of Technology and Innovation, Strategy and Management, Business and International Management}}, number = {{1}}, publisher = {{Inderscience Publishers}}, title = {{{What predicts effectuation preferences Disentangling individual and environmental factors and illuminating decision criteria}}}, doi = {{10.1504/ijev.2023.129283}}, volume = {{15}}, year = {{2023}}, } @article{48584, abstract = {{The sustainability of the manufacturing industry is of special importance to increase the protection of the environment. The production of fasteners like self-piercing rivets, however, is costly, time-consuming and energy-intensive. The heat treatment and the coating, which are mandatory in conventional self-piercing rivets to achieve adequate strength, ductility and corrosion resistance, are especially crucial in this respect. Within this paper, an approach for an increase in the sustainability in fastener production is presented. The use of alternative, high strain hardening stainless steels as rivet material enables a shortening of the process chain, because post treatment of the rivets after they are formed can be omitted. As the change in rivet material and processing causes some issues along the process chain, the focus of this paper is on the holistic evaluation of the challenges within the forming of high strain hardening steel and the impact of the changed rivet properties on the joining result.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, issn = {{2504-4494}}, journal = {{Journal of Manufacturing and Materials Processing}}, keywords = {{Industrial and Manufacturing Engineering, Mechanical Engineering, Mechanics of Materials}}, number = {{6}}, publisher = {{MDPI AG}}, title = {{{Increased Sustainability in Fastener Production with the Example of Self-Piercing Rivets}}}, doi = {{10.3390/jmmp7060193}}, volume = {{7}}, year = {{2023}}, }