@inproceedings{60302,
  abstract     = {{The combination of the mechanical properties of a clinched joint and of the material surrounding the joint determine the resulting properties of the component and joint. The cause and effect relationships between the joint and the joint environment offers the possibility of a specific modification through an adaptation in the design process. In order to identify these cause and effect relationships and resulting interactions experimentally, numerous of experiments are required. In this publication, a concept for the automated manufacturing of head tensile test and shear tensile test specimens – from cutting to clinching – by using a punch laser machine is presented. Based on a full-factorial experimental design, the parameters change of the properties of the joint environment by beading and change of the punch displacement are addressed. The influence on the properties of the clinched specimen is evaluated based on the variables Stiffness, force at the beginning of yielding and maximum force at head tensile loading and shear tensile loading. In addition, the geometric quality parameters of neck thickness, interlock and bottom thickness are evaluated. The relationships can be used to apply uniform loads to joints in joined structures to counteract oversizing.}},
  author       = {{Steinfelder, Christian and Brosius, Alexander}},
  booktitle    = {{Materials Research Proceedings}},
  issn         = {{2474-395X}},
  keywords     = {{Sheet Metal, Joining, Stiffness}},
  location     = {{Erlangen-Nürnberg}},
  publisher    = {{Materials Research Forum LLC}},
  title        = {{{Experimental investigation of the cause and effect relationships between the joint and the component during clinching}}},
  doi          = {{10.21741/9781644902417-19}},
  volume       = {{25}},
  year         = {{2023}},
}

@inproceedings{47448,
  abstract     = {{In XAI it is important to consider that, in contrast to explanations for professional audiences, one cannot assume common expertise when explaining for laypeople. But such explanations between humans vary greatly, making it difficult to research commonalities across explanations. We used the dual nature theory, a techno-philosophical approach, to cope with these challenges. According to it, one can explain, for example, an XAI's decision by addressing its dual nature: by focusing on the Architecture (e.g., the logic of its algorithms) or the Relevance (e.g., the severity of a decision, the implications of a recommendation). We investigated 20 game explanations using the theory as an analytical framework. We elaborate how we used the theory to quickly structure and compare explanations of technological artifacts. We supplemented results from analyzing the explanation contents with results from a video recall to explore how explainers justified their explanation. We found that explainers were focusing on the physical aspects of the game first (Architecture) and only later on aspects of the Relevance. Reasoning in the video recalls indicated that EX regarded the focus on the Architecture as important for structuring the explanation initially by explaining the basic components before focusing on more complex, intangible aspects. Shifting between addressing the two sides was justified by explanation goals, emerging misunderstandings, and the knowledge needs of the explainee. We discovered several commonalities that inspire future research questions which, if further generalizable, provide first ideas for the construction of synthetic explanations.}},
  author       = {{Terfloth, Lutz and Schaffer, Michael and Buhl, Heike M. and Schulte, Carsten}},
  isbn         = {{978-3-031-44069-4}},
  location     = {{Lisboa}},
  publisher    = {{Springer, Cham}},
  title        = {{{Adding Why to What? Analyses of an Everyday Explanation}}},
  doi          = {{10.1007/978-3-031-44070-0_13}},
  year         = {{2023}},
}

@inbook{45360,
  author       = {{Haase, Michael and Bieber, Maximilian and Tasche, Frederik and Schaper, Mirko and Hoyer, Kay-Peter and Ponik, Bernd and Magyar, Balázs}},
  booktitle    = {{Proceedings of the 19th Rapid.Tech 3D Conference Erfurt, Germany, 9–11 May 2023}},
  editor       = {{Kynast, Michael and Eichmann, Michael and Witt, Gerd}},
  isbn         = {{978-3-446-47941-8}},
  publisher    = {{Carl Hanser Verlag GmbH & Co. KG}},
  title        = {{{Umsetzung einer optimierten Oberflächenschlitzung zur Wirbelstromverlustreduktion auf der Oberfläche eines additiv gefertigten Permanentmagnet-Rotors}}},
  doi          = {{https://doi.org/10.3139/9783446479425.001 }},
  year         = {{2023}},
}

@inproceedings{47084,
  abstract     = {{Fused Deposition Modeling (FDM) is an additive manufacturing process to produce
complex thermoplastic geometries layer by layer. The filament is melted in a nozzle, iteratively
deposited, and then cools down. Due to the solidification process, the deposited filament strands
deviate from their intended position due to shrinkage, resulting in significant geometric deviations
in the final part. In terms of dimensional accuracy, there is a need for optimization, especially for
local curved geometries in relation to the global part with higher nominal dimensions. The aim of
this study is to investigate the size and shape deviations for cylindrical FDM elements and to
compensate the expected deformations by using an in-house software with adaptive scaling factors
in the x-y plane. Previous studies mainly focus on simple, non-curved objects, this study also
considers the influence of curvature and global as well as local deviations on the final part.}},
  author       = {{Koers, Thorsten and Magyar, Balázs}},
  booktitle    = {{Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium 2023}},
  editor       = {{Beaman, Joseph}},
  location     = {{Austin, Texas, USA}},
  title        = {{{Determination and Compensation of the Shrinkage Behavior of Cylindrical Elements in the FDM Process}}},
  doi          = {{https://doi.org/10.26153/tsw/50920}},
  volume       = {{34}},
  year         = {{2023}},
}

@inproceedings{48790,
  abstract     = {{To ensure uniform documentation of support structure information, a concept is presented that enables a standardized depiction of support structures in technical drawings based on ISO 128-3. To this end, requirements for a uniform depiction are defined and a procedure for drawing entry is presented. The drawing entry should contain all production-relevant support structure information. The standardized documentation of support structure information in technical drawings is intended to ensure a simple, clear and safe exchange of information between business units or different companies along the value chain. As a result a possible drawing entry of support structures was developed. To distinguish between different support structure types, a standardized depiction of geometrical information in a specification field is shown. The specification field gives a detailed description of the support structure type, the geometry as well as the connection to the part and the building platform. Also uncommon support types like lattice structures or CAD based support structures can be implemented. To ensure the usability the depictio is editable and extendable.}},
  author       = {{Lammers, Stefan and Koers, Thorsten and Magyar, Balázs and Zimmer, Detmar and Lieneke, Tobias}},
  booktitle    = {{Proceedings of the 34th Annual International Solid Freeform Fabrication Symposium 2023}},
  editor       = {{Beaman, Joseph}},
  location     = {{Austin, Texas, USA}},
  title        = {{{Depiction of support structures in technical drawings}}},
  doi          = {{https://doi.org/10.26153/tsw/50982}},
  volume       = {{34}},
  year         = {{2023}},
}

@inproceedings{60647,
  abstract     = {{Das umformtechnische Fügeverfahren Clinchen ermöglicht ein energiearmes Fügen von Blechen und dient traditionell der Übertragung mechanischer Kräfte. Neue Einsatzgebiete erfordern eine elektrische oder thermische Leitfähigkeit, sodass es notwendig ist, das Clinchen entsprechend zu qualifizieren. Es wurden Untersuchungen an Aluminiumverbindungen durchgeführt, welche mit hohen Kurzzeitströmen belastet wurden. Der Einfluss verschiedener Oberflächenvorbehandlungen wurde betrachtet. Als Charakterisierungsmethode für die Bauteile und die geclinchten Fügeverbindungen wird die Messung des elektrischen Widerstandes herangezogen. Die untersuchten Clinchverbindungen sind fähig, die im Fehlerfall auftretenden Kurzzeitströme zu übertragen. Der Oberflächenzustand übt dabei einen signifikanten Einfluss auf die Clinchpunktausbildung und damit auf deren elektrische Eigenschaften aus. Durch Messung des elektrischen Widerstandes vor und nach dem Fügen sowie nach einer Bestromung mit Fehlerströmen, kann das Kontaktverhalten qualifiziert werden.}},
  author       = {{Reschke, Gregor and Kalich, Jan and Füssel, Uwe}},
  booktitle    = {{Tagung Werkstoffprüfung 2022: Werkstoffe und Bauteile auf dem Prüfstand, Prüftechnik – Kennwertermittlung – Schadensvermeidung}},
  editor       = {{Zimmermann, Martina}},
  isbn         = {{978-3-88355-430-3}},
  keywords     = {{Clinchen, Bindemechanismen, elektrische Eigenschaften, Aluminium, Kurzzeitbestromung}},
  location     = {{Dresden}},
  pages        = {{374--379}},
  title        = {{{Methoden zur Charakterisierung der Bindemechanismen bei geclinchten elektrischen Kontakten}}},
  year         = {{2023}},
}

@inproceedings{27461,
  author       = {{Altenhöner, Reinhard and Dieckmann, Lisa and Münzmay, Andreas and Richts-Matthaei, Kristina and Röwenstrunk, Daniel and Stellmacher, Martha and Pratschke, Margarete and Primavesi, Patrick and Schulz, Christoph}},
  location     = {{Potsdam}},
  title        = {{{Kultur – Daten – Kuratierung: Was Speichern Wir Und Wozu?}}},
  year         = {{2022}},
}

@inproceedings{29839,
  abstract     = {{The development of business models is a challenging task that can be supported with software tools. Here, existing approaches and tools do not focus on the company’s situation in which the development takes place (e.g., financial resources, product type). To tackle this challenge, we used design science research to develop a situation-specific business model development approach that contains three stages: First, existing knowledge in terms of tasks to do (e.g., analyze competitive advantage), and decisions to be made (e.g., social media marketing) are stored in repositories. Second, the knowledge is used to compose a development method based on the company’s situation. Third, the development method is enacted to develop a business model. This demonstration paper presents a tool-support called Situational Business Model Developer that supports all stages of our approach. We release the tool under open-source and evaluate it with a case study on developing business models for mobile apps.}},
  author       = {{Gottschalk, Sebastian and Yigitbas, Enes and Nowosad, Alexander and Engels, Gregor}},
  booktitle    = {{Proceedings of the 17th International Conference on Wirtschaftsinformatik}},
  keywords     = {{Business Model Development, Situational Method Engineering, Tool Support}},
  location     = {{Nuremberg}},
  publisher    = {{AIS}},
  title        = {{{Situational Business Model Developer: A Tool-support for Situation-specific Business Model Development}}},
  year         = {{2022}},
}

@inproceedings{29840,
  abstract     = {{Due to the proliferation of Virtual Reality (VR) technology, VR is finding new applications in various domains, such as stock trading. Here, traders invest in stocks intending to increase their profit. For this purpose, in conventional stock trading, traders usually make use of 2D applications on desktop or laptop devices. This leads to many drawbacks such as poor visibility due to limited 2D representation, complex interaction due to indirect interaction via mouse and keyboard, or restricted support for collaboration between traders. To overcome these issues, we have developed a novel collaborative, virtual environment for stock trading, which enables stock traders to view financial information and trade stocks with other collaborators. The main results of a usability study indicate that the VR environment, compared to conventional stock trading, shows no significant advantages concerning efficiency and effectiveness, however, we could observe an increased user satisfaction and better collaboration.}},
  author       = {{Yigitbas, Enes and Gottschalk, Sebastian and Nowosad, Alexander and Engels, Gregor}},
  booktitle    = {{Proceedings of the 17th International Conference on Wirtschaftsinformatik}},
  keywords     = {{virtual reality, stock trading, collaboration, usability}},
  location     = {{Nuremberg}},
  publisher    = {{AIS}},
  title        = {{{Development and Evaluation of a Collaborative Stock Trading Environment in Virtual Reality}}},
  year         = {{2022}},
}

@inproceedings{29847,
  author       = {{Fockel, Markus and Schubert, David and Trentinaglia, Roman and Schulz, Hannes and Kirmair, Wolfgang}},
  booktitle    = {{Proceedings of the 10th International Conference on Model-Driven Engineering and Software Development}},
  publisher    = {{SCITEPRESS - Science and Technology Publications}},
  title        = {{{Semi-automatic Integrated Safety and Security Analysis for Automotive Systems}}},
  doi          = {{10.5220/0010778500003119}},
  year         = {{2022}},
}

@inproceedings{29844,
  author       = {{Koch, Thorsten and Trippel, Sascha and Dziwok, Stefan and Bodden, Eric}},
  booktitle    = {{Proceedings of the 10th International Conference on Model-Driven Engineering and Software Development}},
  publisher    = {{SCITEPRESS - Science and Technology Publications}},
  title        = {{{Integrating Security Protocols in Scenario-based Requirements Specifications}}},
  doi          = {{10.5220/0010783300003119}},
  year         = {{2022}},
}

@inproceedings{29927,
  author       = {{Yigitbas, Enes and Karakaya, Kadiray and Jovanovikj, Ivan and Engels, Gregor}},
  booktitle    = {{Software Engineering 2022, Fachtagung des GI-Fachbereichs Softwaretechnik, 21.-25. Februar 2022, Virtuell}},
  editor       = {{Grunske, Lars and Siegmund, Janet and Vogelsang, Andreas}},
  pages        = {{95–96}},
  publisher    = {{Gesellschaft für Informatik e.V.}},
  title        = {{{Enhancing Human-in-the-Loop Adaptive Systems through Digital Twins and VR Interfaces}}},
  doi          = {{10.18420/se2022-ws-033}},
  volume       = {{{P-320}}},
  year         = {{2022}},
}

@inproceedings{29926,
  author       = {{Yigitbas, Enes and Gorissen, Simon and Weidmann, Nils and Engels, Gregor}},
  booktitle    = {{Software Engineering 2022, Fachtagung des GI-Fachbereichs Softwaretechnik, 21.-25. Februar 2022, Virtuell}},
  editor       = {{Grunske, Lars and Siegmund, Janet and Vogelsang, Andreas}},
  pages        = {{93–94}},
  publisher    = {{Gesellschaft für Informatik e.V.}},
  title        = {{{Collaborative Software Modeling in Virtual Reality}}},
  doi          = {{10.18420/se2022-ws-032}},
  volume       = {{{P-320}}},
  year         = {{2022}},
}

@article{26747,
  abstract     = {{Metasurfaces provide applications for a variety of flat elements and devices due to the ability to modulate light with subwavelength structures. The working principle meanwhile gives rise to the crucial problem and challenge to protect the metasurface from dust or clean the unavoidable contaminants during daily usage. Here, taking advantage of the intelligent bioinspired surfaces which exhibit self-cleaning properties, a versatile dielectric metasurface benefiting from the obtained superhydrophilic or quasi-superhydrophobic states is shown. The design is realized by embedding the metasurface inside a large area of wettability supporting structures, which is highly efficient in fabrication, and achieves both optical and wettability functionality at the same time. The superhydrophilic state enables an enhanced optical response with water, while the quasi-superhydrophobic state imparts the fragile antennas an ability to self-clean dust contamination. Furthermore, the metasurface can be easily switched and repeated between these two wettability or functional states by appropriate treatments in a repeatable way, without degrading the optical performance. The proposed design strategy will bring new opportunities to smart metasurfaces with improved optical performance, versatility, and physical stability.}},
  author       = {{Lu, Jinlong and Sain, Basudeb and Georgi, Philip and Protte, Maximilian and Bartley, Tim and Zentgraf, Thomas}},
  issn         = {{2195-1071}},
  journal      = {{Advanced Optical Materials}},
  number       = {{1}},
  publisher    = {{Wiley}},
  title        = {{{A Versatile Metasurface Enabling Superwettability for Self‐Cleaning and Dynamic Color Response}}},
  doi          = {{10.1002/adom.202101781}},
  volume       = {{10}},
  year         = {{2022}},
}

@inproceedings{30229,
  author       = {{Klippstein, Sven Helge}},
  location     = {{Online}},
  title        = {{{Reproducibility in Polymer Laser Sintering}}},
  year         = {{2022}},
}

@article{30195,
  abstract     = {{While plasmonic particles can provide optical resonances in a wide spectral range from the lower visible up to the near-infrared, often, symmetry effects are utilized to obtain particular optical responses. By breaking certain spatial symmetries, chiral structures arise and provide robust chiroptical responses to these plasmonic resonances. Here, we observe strong chiroptical responses in the linear and nonlinear optical regime for chiral L-handed helicoid-III nanoparticles and quantify them by means of an asymmetric factor, the so-called g-factor. We calculate the linear optical g-factors for two distinct chiroptical resonances to −0.12 and –0.43 and the nonlinear optical g-factors to −1.45 and −1.63. The results demonstrate that the chirality of the helicoid-III nanoparticles is strongly enhanced in the nonlinear regime.}},
  author       = {{Spreyer, Florian and Mun, Jungho and Kim, Hyeohn and Kim, Ryeong Myeong and Nam, Ki Tae and Rho, Junsuk and Zentgraf, Thomas}},
  issn         = {{2330-4022}},
  journal      = {{ACS Photonics}},
  keywords     = {{Electrical and Electronic Engineering, Atomic and Molecular Physics, and Optics, Biotechnology, Electronic, Optical and Magnetic Materials}},
  number       = {{3}},
  pages        = {{784–792}},
  publisher    = {{American Chemical Society (ACS)}},
  title        = {{{Second Harmonic Optical Circular Dichroism of Plasmonic Chiral Helicoid-III Nanoparticles}}},
  doi          = {{10.1021/acsphotonics.1c00882}},
  volume       = {{9}},
  year         = {{2022}},
}

@article{30385,
  abstract     = {{<jats:title>Abstract</jats:title><jats:p>Tailored nanoscale quantum light sources, matching the specific needs of use cases, are crucial building blocks for photonic quantum technologies. Several different approaches to realize solid-state quantum emitters with high performance have been pursued and different concepts for energy tuning have been established. However, the properties of the emitted photons are always defined by the individual quantum emitter and can therefore not be controlled with full flexibility. Here we introduce an all-optical nonlinear method to tailor and control the single photon emission. We demonstrate a laser-controlled down-conversion process from an excited state of a semiconductor quantum three-level system. Based on this concept, we realize energy tuning and polarization control of the single photon emission with a control-laser field. Our results mark an important step towards tailored single photon emission from a photonic quantum system based on quantum optical principles.</jats:p>}},
  author       = {{Jonas, B. and Heinze, D. and Schöll, E. and Kallert, P. and Langer, T. and Krehs, S. and Widhalm, A. and Jöns, K. D. and Reuter, D. and Schumacher, S. and Zrenner, Artur}},
  issn         = {{2041-1723}},
  journal      = {{Nature Communications}},
  keywords     = {{General Physics and Astronomy, General Biochemistry, Genetics and Molecular Biology, General Chemistry}},
  number       = {{1}},
  publisher    = {{Springer Science and Business Media LLC}},
  title        = {{{Nonlinear down-conversion in a single quantum dot}}},
  doi          = {{10.1038/s41467-022-28993-3}},
  volume       = {{13}},
  year         = {{2022}},
}

@article{30384,
  author       = {{Praschan, Tom and Heinze, Dirk and Breddermann, Dominik and Zrenner, Artur and Walther, Andrea and Schumacher, Stefan}},
  issn         = {{2469-9950}},
  journal      = {{Physical Review B}},
  number       = {{4}},
  publisher    = {{American Physical Society (APS)}},
  title        = {{{Pulse shaping for on-demand emission of single Raman photons from a quantum-dot biexciton}}},
  doi          = {{10.1103/physrevb.105.045302}},
  volume       = {{105}},
  year         = {{2022}},
}

@inproceedings{30387,
  abstract     = {{Resonant evanescent coupling can be utilized to selectively excite orbital angular momentum (OAM) modes of high angular order supported by a thin circular dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial fields associated with the fundamental TE- and TM-modes of a standard silicon photonics slab waveguide, propagating at oblique angles with respect to the rod axis, and the hybrid modes supported by the rod. One observes an efficient resonant interaction in cases where the common axial wavenumber of the waves in the slab matches the propagation constant of one or more modes of the rod. For certain modes of high angular order, the incident wave is able to transfer its directionality to the field in the fiber, exciting effectively only one of a pair of degenerate OAM modes}},
  author       = {{Hammer, Manfred and Ebers, Lena and Förstner, Jens}},
  booktitle    = {{Complex Light and Optical Forces XVI}},
  editor       = {{Andrews, David L. and Galvez, Enrique J. and Rubinsztein-Dunlop, Halina}},
  keywords     = {{tet_topic_waveguide}},
  pages        = {{120170F}},
  publisher    = {{SPIE}},
  title        = {{{Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber}}},
  doi          = {{10.1117/12.2612179}},
  year         = {{2022}},
}

@phdthesis{30722,
  abstract     = {{In dieser Arbeit wird die elektromagnetische Wellenausbreitung in integrierten optischen Wellenleitern mit Hilfe von halb analytischen und numerischen Simulationsmethoden untersucht. Im ersten Teil werden 2-D Si/SiO2-Wellenleiterkonfigurationen mit hohem Brechungsindexkontrast betrachtet. Die Strukturen werden mit halb geführten Wellen unter schrägen Ausbreitungswinkeln angeregt. Dadurch kann die Leistungsübertragung zu bestimmten ausgehenden Moden unterdrückt werden, wodurch vollständig verlustfreie Systeme entstehen. Zusätzlich dient die Anregung mit einem seitlich begrenzten, einfallenden Wellenbündel aus halb geführten Wellen dazu, praktisch relevantere 3-D Konfigurationen zu realisieren. Darüber hinaus wird eine schrittweise Winkelspektrum-Methode vorgestellt, die es ermöglicht, in Kombination mit voll vektoriellen 2-D Finite-Elemente-Lösungen für Teilprobleme mit geringerer Komplexität, die Wellenausbreitung in planaren, linsenförmigen Wellenleitern numerisch in drei Raumrichtungen zu berechnen. Im zweiten Teil dieser Arbeit wird die Ausbreitung in Wellenleiterstrukturen aus Lithiumniobat untersucht, welche für quantenoptische Effekte genutzt werden. Zur Detektion einzelner Photonen werden supraleitende Nanodrähte auf eindiffundierten Lithiumniobat Wellenleitern mit zusätzlicher Taperschicht aus Silizium betrachtet. Um die Wellenausbreitung in diesen 3-D Wellenleitern zu beschreiben, wird eine einseitig gerichtete Finite-Elemente „Modal Matching“ Methode eingeführt. Abschließend werden Rippenwellenleiter aus Lithiumniobat analysiert, die auf Siliziumdioxid Plattformen aufgebracht sind. Der Schwerpunkt liegt hier auf dem nichtlinearen „Parametric Down-Conversion“ Prozess, der für die Erzeugung verschränkter Photonen verwendet wird.}},
  author       = {{Ebers, Lena}},
  keywords     = {{tet_topic_waveguide}},
  title        = {{{Semi-guided waves in integrated optical waveguide structures}}},
  doi          = {{10.17619/UNIPB/1-1288}},
  year         = {{2022}},
}