@article{65615,
  abstract     = {{Self-piercing riveting (SPR) is a well-established joining technique in lightweight construction, as it enables the joining of different materials without requiring pre-drilling. However, the necessary adaptation of the rivet-die combination to the respective material and thickness combinations requires a large number of specific tool sets, which significantly limits the process's flexibility. To overcome these limitations, the versatile self-piercing riveting (V-SPR) was developed, which features enhanced punch actuation in combination with a multi-range-capable rivet . In this context, the concept of a movable die was introduced, which enables an extended process window and adaptable joint formation. Kappe et al. presented initial studies demonstrating the potential of this approach . However, a detailed numerical understanding of the underlying mechanisms remains lacking. This paper presents a numerical analysis of V-SPR with a movable die using a finite element (FE) model. The model includes deformable rivets, sheet metal materials and a kinematically controlled die with adjustable movement. A parameter study was conducted to analyse the influence of die movement on the material flow of the rivet and sheets, as well as joint formation. The simulations were validated using selected experimental data. The goal is to compare the joint geometries achieved with fixed and moving dies and expand the process windows of VSPR. The results demonstrate that the movable-die concept significantly enhances the material flow of both the sheets and the rivet, resulting in a noticeably larger and more reliable interlock than what is achievable with V-SPR using a fixed die. The numerical analyses support the observations reported by Kappe et al. and extend them by providing a quantitative description of how die displacement influences the resulting interlock size. Moreover, the ability to precisely control the die movement makes it possible to join challenging sheet-metal combinations that are difficult to process with conventional setups, particularly in cases involving thicker sheet materials.}},
  author       = {{Kaimann, Pia Katharina and Bobbert, Mathias and Meschut, Gerson}},
  issn         = {{1662-9752}},
  journal      = {{Materials Science Forum}},
  pages        = {{149--160}},
  publisher    = {{Trans Tech Publications, Ltd.}},
  title        = {{{Numerical Analysis of the Influence of a Movable Die on Joint Formation in Versatile Self-Piercing Riveting}}},
  doi          = {{10.4028/p-8jkha8}},
  volume       = {{1185}},
  year         = {{2026}},
}

@inproceedings{65902,
  author       = {{Stojko, Laura and Herder, Eelco and Strecker-Bischoff, Jannis and Sänger, Julia Seitz and Neumayr, Thomas and Yigitbas, Enes and Augstein, Mirjam}},
  booktitle    = {{Companion Publication of the 2026 18th ACM Web Science Conference, WebSci Companion 2026, Braunschweig, Germany, May 26-29, 2026}},
  editor       = {{Balke, Wolf-Tilo and Plötzky, Florian and Spaniol, Marc and Herder, Eelco and Manikonda, Lydia and Liu, Haiming and Ibáñez, Luis-Daniel and Rezapour, Rezvaneh}},
  pages        = {{108–109}},
  publisher    = {{ACM}},
  title        = {{{ABIS 2026: The Effects of the Adaptive Web on Society}}},
  doi          = {{10.1145/3795513.3810983}},
  year         = {{2026}},
}

@inproceedings{65901,
  author       = {{Steffens, Hanna and Yigitbas, Enes and Sauer, Stefan}},
  booktitle    = {{Proceedings of the 28th International Conference on Human-Computer Interaction (HCII 2026)}},
  publisher    = {{Springer}},
  title        = {{{Effects of Vertical Price Placement on Consumer Behaviour: A VR-Based Investigation Including Eye Tracking}}},
  year         = {{2026}},
}

@article{65909,
  abstract     = {{<jats:title>ABSTRACT</jats:title>
                  <jats:p>Creativity and innovation are often understood as the result of a complex interplay of hierarchical factors, such as national, regional and firm characteristics, or between organisational and individual factors. While recent applications of qualitative comparative analysis (QCA) have begun to model such configurational links, their hierarchical nature has received little empirical attention. As this paper demonstrates, theories that posit hierarchical configurations can and should be explored using the two‐step variant of QCA. The paper outlines the potential of the method for the field of creativity and innovation and helps to navigate key modelling decisions. An illustrative study explores the occurrence of informal employee innovation behaviour—workarounds—based on the Ability‐Motivation‐Opportunity (AMO) framework. The results of the two‐step QCA are superior in terms of reduced limited diversity and complexity to those of the conventional one‐step QCA. Overall, the method has considerable potential for empirically capturing the complex, hierarchical interactions inherent in many innovation processes.</jats:p>}},
  author       = {{Sandfort, Luc and Hellweg, Talea Davina and Radermacher, Katharina and Schneider, Martin}},
  issn         = {{0963-1690}},
  journal      = {{Creativity and Innovation Management}},
  publisher    = {{Wiley}},
  title        = {{{Modelling Hierarchical Configurations in Innovation Research With Two‐Step QCA: Methodological Recommendations and an Application to Workarounds}}},
  doi          = {{10.1111/caim.70053}},
  year         = {{2026}},
}

@inproceedings{65906,
  author       = {{Jin, Xiao and Zentgraf, Thomas}},
  booktitle    = {{Metamaterials XV}},
  editor       = {{MacDonald, Kevin F. and Zayats, Anatoly V. and Staude, Isabelle}},
  location     = {{Strasbourg, France}},
  publisher    = {{SPIE}},
  title        = {{{OAM-multiplexed holography via cascaded metasurfaces without post sampling and position multiplexing}}},
  doi          = {{10.1117/12.3096579}},
  volume       = {{14075}},
  year         = {{2026}},
}

@article{65753,
  author       = {{Schenke, Maximilian and Haucke-Korber, Barnabas and Wallscheid, Oliver}},
  issn         = {{2169-3536}},
  journal      = {{IEEE Access}},
  pages        = {{1--1}},
  publisher    = {{Institute of Electrical and Electronics Engineers (IEEE)}},
  title        = {{{Safe Reinforcement Learning Direct Torque Control for Continuous Control Set Permanent Magnet Synchronous Motor Drives}}},
  doi          = {{10.1109/access.2026.3696042}},
  year         = {{2026}},
}

@inproceedings{65903,
  author       = {{Seidan, Salah and Yigitbas, Enes and Leichtweiß, Justus}},
  booktitle    = {{Proceedings of the 10th International Conference on Intelligent Computing and Virtual & Augmented Reality Simulations (ICVARS 2026)}},
  publisher    = {{IEEE}},
  title        = {{{Change Your Perspective - A VR Driving Simulator to Enhance Safety Awareness in Public Road Traffic}}},
  year         = {{2026}},
}

@inproceedings{65904,
  author       = {{Krings, Sarah Claudia and Yigitbas, Enes and Sauer, Stefan}},
  booktitle    = {{Proceedings of the 18th ACM SIGCHI Symposium on Engineering Interactive Computing Systems (EICS 2026)}},
  publisher    = {{ACM}},
  title        = {{{A Framework Supporting Context-Awareness for Transitional Cross-Reality Applications}}},
  year         = {{2026}},
}

@article{65905,
  author       = {{Yigitbas, Enes and Dell'Aquila, Alessio}},
  journal      = {{Proceedings of the ACM on Human-Computer Interaction - EICS }},
  publisher    = {{ACM}},
  title        = {{{Exploring the Dynamics of Authoring Interactive VR Environments: Human Collaboration vs. AI Assistance}}},
  year         = {{2026}},
}

@article{65910,
  author       = {{Hellweg, Talea Davina and Radermacher, Katharina and Schneider, Martin and Sandfort, Luc Dana}},
  journal      = {{PersonalQuarterly 2026(01)}},
  pages        = {{50--57}},
  title        = {{{Verstecktes Innovationspotenzial: Entstehungsfaktoren von Workarounds. }}},
  year         = {{2026}},
}

@inbook{65689,
  abstract     = {{The use of aluminium materials in the structural and bodywork areas of assemblies has proven to be a targeted option for lightweight design. How-ever, the reliable and cost-efficient joining of aluminium components remains a challenge. Mechanical joining methods, such as riveting, are frequently used in the automotive and aerospace construction industries. Rivets are made from heat-treated steels. Compared to steel, the use of aluminium materials for fasten-ers offers several advantages in terms of joining properties, particularly in terms of recyclability, corrosion resistance and reduced weight of the joined structure. Additionally, the manufacturing process is shorter since aluminium fasteners do not require coating. However, aluminium rivets can often not be used due to the insufficient mechanical strength of the fastener material in relation to the joining component materials.
This study systematically investigates the requirements for using solid alu-minium self-piercing rivets. The influence of rivet geometry adjustments on the joint quality is analysed using numerical simulation. The results are used to derive and evaluate an optimised rivet geometry for joining pure aluminium sheets. On this basis, solid self-drilling rivets with optimised geometry are manufactured from particle-reinforced aluminium produced in a continuous extrusion process by machining. The integration of particles increases the material’s strength. Exper-imental tests are conducted to evaluate the use of optimised solid self-piercing rivets. The quality-relevant parameters are determined and evaluated based on macrographs of the joints.}},
  author       = {{Koch, Steffen and Weber, Joshua and Meschut, Gerson and Stadelmann, Claudia and Böhm, Wolfgang and Merklein, Marion}},
  booktitle    = {{Proceedings in Engineering Mechanics}},
  isbn         = {{9783032236401}},
  issn         = {{2731-0221}},
  keywords     = {{Solid self-piercing riveting cdot particle-reinforced aluminium cdot continuous powder extrusion cdot Joining technology cdot Rivet geometry cdot lightweight design}},
  location     = {{Coimbra}},
  publisher    = {{Springer Nature Switzerland}},
  title        = {{{Particle-Reinforced Aluminium Solid Self-piercing Rivets for Joining Aluminium Alloy Sheets}}},
  doi          = {{10.1007/978-3-032-23641-8_1}},
  year         = {{2026}},
}

@inbook{65915,
  author       = {{Jesinghausen, Steffen and Schmid, Hans-Joachim}},
  booktitle    = {{Opus Fluidum Futurum—Rheology of Reactive, Multiscale, Multiphase Construction Materials}},
  title        = {{{Adaptive Coaxial Concrete Rheometer (ACCR): Honest Rheological Measurements and Corrections}}},
  doi          = {{10.1007/978-3-032-15391-3}},
  year         = {{2026}},
}

@misc{65788,
  author       = {{Azam, Mohammad Hamid}},
  title        = {{{Entwicklung einer wärmebildkamerabasierten Temperaturmesseinrichtung im Lasersinterverfahren}}},
  year         = {{2026}},
}

@article{65919,
  author       = {{Öhlschläger, Claudia}},
  journal      = {{Geschlecht und Macht (feministische studien)}},
  number       = {{1}},
  pages        = {{82--98}},
  publisher    = {{de Gruyter}},
  title        = {{{Metamorphosen als Akte weiblicher Handlungsmacht in Texten von Brigitte Kronauer, Han Kang und Camilla Grudova}}},
  doi          = {{https://doi.org/10.1515/fs-2026-0006}},
  volume       = {{44}},
  year         = {{2026}},
}

@article{65920,
  author       = {{Öhlschläger, Claudia}},
  journal      = {{Geschlecht und Macht (feministische studien)}},
  number       = {{1}},
  pages        = {{129--134}},
  publisher    = {{de Gruyter}},
  title        = {{{Zu Fotografien der Berliner Künstlerin Cihan Çakmak}}},
  doi          = {{https://doi.org/10.1515/fs-2026-0010}},
  volume       = {{44}},
  year         = {{2026}},
}

@article{65918,
  author       = {{Öhlschläger, Claudia and Riegraf, Birgitt}},
  journal      = {{Geschlecht und Macht (feministische studien)}},
  number       = {{1}},
  pages        = {{5--14}},
  publisher    = {{de Gruyter}},
  title        = {{{Geschlecht und Macht}}},
  doi          = {{https://doi.org/10.1515/fs-2026-0001}},
  volume       = {{44}},
  year         = {{2026}},
}

@misc{65917,
  booktitle    = {{feministische studien}},
  editor       = {{Öhlschläger, Claudia and Riegraf, Birgitt}},
  number       = {{1}},
  publisher    = {{de Gruyter}},
  title        = {{{Geschlecht und Macht}}},
  volume       = {{44}},
  year         = {{2026}},
}

@unpublished{65916,
  author       = {{Jakob, Johanna}},
  title        = {{{Diffeomorphism groups of compact locally polyhedral manifolds}}},
  year         = {{2026}},
}

@article{61463,
  abstract     = {{Vernetztes Wissen ist ein zentrales Lernziel des Hochschulstudiums, insbesondere im interdisziplinär angelegten Studienfach Komparatistik. Um den Aufbau vernetzten Wissens bei Bachelorstudierenden der Komparatistik zu unterstützen, ist in diesem Projekt Portfolioarbeit eingesetzt worden, die als Methode selbsttätigen und selbstreflexiven Lernens geeignet erscheint, zur Auseinandersetzung mit Lerninhalten zu motivieren und zur Kompetenzentwicklung der Studierenden beizutragen. Mittels unstrukturierter Beobachtungen der Portfolioarbeit im Seminar sind inhaltliche Effekte und methodische Entwicklungen erfasst worden. Anhand anteilig quantitativer, überwiegend qualitativer Inhaltsanalysen der Portfolios sind konkrete Vernetzungen zwischen Lerninhalten ermittelt worden. Die Explorationsstudie zeigt veränderte Perspektiven und geweckte Interessen bei den Studierenden durch die Portfolioarbeit sowie vielfältige Kontextualisierungen, Vergleiche und Verknüpfungen in den Portfolios auf und bietet hierdurch einen möglichen Ansatzpunkt für strukturelle Empfehlungen für das Studienfach Komparatistik.}},
  author       = {{Hannebohm, Ronja}},
  issn         = {{2199–8825}},
  journal      = {{die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre}},
  keywords     = {{Portfolioarbeit, portfolio work, vernetztes Wissen, knowledge networks, Beobachtung, naturalistic observation, Inhaltsanalyse, content analysis}},
  pages        = {{65–80}},
  publisher    = {{wbv}},
  title        = {{{Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft}}},
  doi          = {{10.3278/HSL2606W}},
  volume       = {{12}},
  year         = {{2026}},
}

@phdthesis{61464,
  abstract     = {{Der eugenetische Roman ist als ein literarisches Genre zu begreifen, das biowissenschaftliche, bioethische und biopoetische Dimensionen miteinander verbindet, um Grenzen und Konstanten des Mensch(lich)en auszuhandeln. Mindestens seit Darwin und Galton sind die Modifizierung des menschlichen Individuums und die Optimierung der menschlichen Spezies diskutiert worden, spätestens seit den 1980er Jahren haben humangenetische und biotechnologische Entwicklungen den Diskurs neu perspektiviert. Literatur trägt zu diesem Diskurs bei, indem sie Erprobungs- und Reflexionsräume schafft: Sie modelliert menschliche Subjekte, die in eugenetische Zukunftsszenarien eingeschrieben sind, und entwickelt spezifische Erzählweisen, die diese Subjekte, ihre Lebensweisen und ihr Lebenswissen, narrativ erfahrbar machen. Fünf eugenetische Romane der englisch- und deutschsprachigen Gegenwartsliteratur werden in der Studie hinsichtlich Subjektmodellierungen und Narrationsweisen im Kontext der Eugenetik untersucht.}},
  author       = {{Hannebohm, Ronja}},
  isbn         = {{978-3-7705-7106-2}},
  keywords     = {{Ethik, Eugenik, Genre, Lebenswissen, Macht, Metamoderne, Narration, Postmoderne, Subjekt, Zukunft}},
  publisher    = {{Brill | Fink}},
  title        = {{{Nach 1984: Biopoethik des eugenetischen Romans}}},
  doi          = {{10.30965/9783846771068}},
  year         = {{2026}},
}