@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}}, } @inproceedings{44220, abstract = {{With regard to environmental protection, the sustainability of production processes is decisive. Mechanical joining technologies like self-piercing riveting are of special importance with regard to realising lightweight constructions in the automotive industry. However, the production of self-piercing rivets is costly, time-consuming and energy-intensive, as the rivets conventionally must be heat treated and coated in order to ensure an adequate strength, ductility and corrosion resistance. Within this paper, it is shown by the example of a newly established rivet manufacturing process how the sustainability of fastener production can be increased. The general approach in this context is the use of alternative, high strain hardening stainless steels as rivet material, which allows the omission of the post treatment of the rivets after forming. The shortening of the process chain enables a more sustainable rivet production. Thus, not only the energy consumption is reduced, but also costs, which is why the novel manufacturing process is also of interest from an economic point of view.}}, author = {{Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}}, location = {{Nürnberg}}, publisher = {{Materials Research Proceedings}}, title = {{{Approach for a sustainable process chain in manufacturing of fasteners for mechanical joining}}}, doi = {{10.21741/9781644902417-49}}, year = {{2023}}, } @article{64777, 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}}, 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}}, } @inproceedings{49111, abstract = {{Due to the high variation in the application requirements of sound event detection (SED) systems, it is not sufficient to evaluate systems only in a single operating mode. Therefore, the community recently adopted the polyphonic sound detection score (PSDS) as an evaluation metric, which is the normalized area under the PSD receiver operating characteristic (PSD-ROC). It summarizes the system performance over a range of operating modes resulting from varying the decision threshold that is used to translate the system output scores into a binary detection output. Hence, it provides a more complete picture of the overall system behavior and is less biased by specific threshold tuning. However, besides the decision threshold there is also the post-processing that can be changed to enter another operating mode. In this paper we propose the post-processing independent PSDS (piPSDS) as a generalization of the PSDS. Here, the post-processing independent PSD-ROC includes operating points from varying post-processings with varying decision thresholds. Thus, it summarizes even more operating modes of an SED system and allows for system comparison without the need of implementing a post-processing and without a bias due to different post-processings. While piPSDS can in principle combine different types of post-processing, we here, as a first step, present median filter independent PSDS (miPSDS) results for this year’s DCASE Challenge Task4a systems. Source code is publicly available in our sed_scores_eval package (https://github.com/fgnt/sed_scores_eval).}}, author = {{Ebbers, Janek and Haeb-Umbach, Reinhold and Serizel, Romain}}, booktitle = {{Proceedings of the 8th Detection and Classification of Acoustic Scenes and Events 2023 Workshop (DCASE2023)}}, pages = {{36–40}}, title = {{{Post-Processing Independent Evaluation of Sound Event Detection Systems}}}, year = {{2023}}, } @article{47151, abstract = {{When it comes to mastering the digital world, the education system is more and more facing the task of making students competent and self-determined agents when interacting with digital artefacts. This task often falls to computing education. In the traditional fields of computing education, a plethora of models, guidelines, and principles exist, which help scholars and teachers identify what the relevant aspects are and which of them one should cover in the classroom. When it comes to explaining the world of digital artefacts, however, there is hardly any such guiding model. The ARIadne model introduced in this paper provides a means of explanation and exploration of digital artefacts which help teachers and students to do a subject analysis of digital artefacts by scrutinizing them from several perspectives. Instead of artificially separating aspects which target the same phenomena within different areas of education (like computing, ICT or media education), the model integrates technological aspects of digital artefacts and the relevant societal discourses of their usage, their impacts and the reasons behind their development into a coherent explanation model.}}, author = {{Winkelnkemper, Felix and Höper, Lukas and Schulte, Carsten}}, issn = {{1648-5831}}, journal = {{Informatics in Education}}, keywords = {{Computer Science Applications, Communication, Education, General Engineering}}, publisher = {{Vilnius University Press}}, title = {{{ARIadne – An Explanation Model for Digital Artefacts}}}, doi = {{10.15388/infedu.2024.09}}, year = {{2023}}, } @inproceedings{46490, author = {{Gräßler, Iris and Tusek, Alena Marie and Özcan, Deniz}}, booktitle = {{Automation 2023}}, isbn = {{9783181024195}}, location = {{Baden-Baden}}, pages = {{863 -- 874}}, publisher = {{VDI Verlag}}, title = {{{Entwicklung zukunftsfähiger Geschäftsmodelle in der Automatisierungstechnik anhand von Megatrends}}}, doi = {{10.51202/9783181024195-863}}, volume = {{2419}}, year = {{2023}}, } @inproceedings{47033, author = {{Güldenpenning, Iris and Kunde, W. and Weigelt, Matthias}}, booktitle = {{Human Performance – Assessment, Intervention & Analysen. Abstractband der 55. Jahrestagung der Arbeitsgemeinschaft für Sportpsychologie (asp)}}, editor = {{Schott, N. and Klotzbier, T. and Korbus, H. and El-Rajab, I. and Holfelder, B. and Gomolinsky, U. and Park, S.-Y.}}, pages = {{116--117}}, publisher = {{Universität Stuttgart}}, title = {{{Der Einfluss von kognitiver Belastung auf den Blicktäuschungseffekt im Basketball}}}, year = {{2023}}, } @inproceedings{52718, author = {{Büker, Ronja and Jenert, Tobias and Fahrbach, Manuel}}, booktitle = {{Jahrestagung der Sektion Berufs- und Wirtschaftspädagogik der Deutschen Gesellschaft für Erziehungswissenschaft}}, location = {{Flensburg}}, title = {{{Vorstellung eines Trainings zur Förderung des selbstregulierten unternehmerischen Lernens in der Entrepreneurship-Education.}}}, year = {{2023}}, } @article{45997, author = {{Hartung, Olaf}}, issn = {{2296-9632}}, journal = {{Beiträge zur Lehrerinnen- und Lehrerbildung}}, number = {{2}}, pages = {{231--241}}, publisher = {{Schweizerischen Gesellschaft für Lehrerinnen- und Lehrerbildung}}, title = {{{Sprachlichkeit des Geschichtslernens. Fachliche Grundlagen, Sprachgebrauch und Ansätze fachintegrierter Spracharbeit}}}, doi = {{https://doi.org/10.36950/bzl.41.2.2023.10346}}, volume = {{41}}, year = {{2023}}, } @inproceedings{52720, author = {{Jenert, Tobias and Büker, Ronja}}, booktitle = {{20th Biennial EARLI Conference}}, location = {{Thessaloniki}}, title = {{{Designing Self-Regulation interventions for different target groups in Entrepreneurship Education }}}, year = {{2023}}, } @inproceedings{46802, author = {{Gräßler, Iris and Roesmann, Daniel and Unverzagt, Marc and Pottebaum, Jens}}, booktitle = {{Sensor and Measurement Science International (SMSI 2023)}}, location = {{Nürnberg}}, publisher = {{AMA Service}}, title = {{{Virtual Test Scenarios for Human-Centered Design with Virtual Measurement Systems}}}, doi = {{10.5162/smsi2023/p70}}, year = {{2023}}, } @inbook{49807, author = {{Haenisch, Matthias and Godau, Marc and Barreiro, Julia and Maxelon, Dominik and Neuhausen, Timo}}, booktitle = {{44. Jahresband des Arbeitskreises Musikpädagogische Forschung / 44th Yearbook of the German Association for Research in Music Education}}, editor = {{Göllner, Matthias and Honnens, Johann and Krupp, Valerie and Oravec, Lina and Schmid, Silke}}, isbn = {{9783830947646}}, pages = {{305--322}}, publisher = {{Waxmann Verlag GmbH}}, title = {{{Die Plattformisierung des Songwritings. Musik erfinden unter Bedingungen des short video turn am Beispiel von TikTok}}}, doi = {{10.31244/9783830997641.18}}, volume = {{44}}, year = {{2023}}, } @article{48580, abstract = {{Abstract Sandwich packings represent new separation column internals, with a potential to intensify mass transfer. They comprise two conventional structured packings with different specific geometrical surface areas. In this work, the complex fluid dynamics in sandwich packings is modeled using a novel approach based on a one-dimensional, steady momentum balance of the liquid and gas phases. The interactions between the three present phases (gas, liquid, and solid) are considered by closures incorporated into the momentum balance. The formulation of these closures is derived from two fluid-dynamic analogies for the film and froth flow patterns. The adjustable parameters in the closures are regressed for the film flow using dry pressure drop measurements and liquid hold-up data in trickle flow conditions. For the froth flow, the tuning parameters are fitted to overall pressure drop measurements and local liquid hold-up data acquired from ultra-fast X-ray tomography (UFXCT). The model predicts liquid hold-up and pressure drop data with an average relative deviation of 16.4 % and 19 %, respectively. Compared to previous fluid dynamic models for sandwich packings, the number of adjustable parameters could be reduced while maintaining comparable accuracy.}}, author = {{Franke, Patrick and Shabanilemraski, Iman and Schubert, Markus and Hampel, Uwe and Kenig, Eugeny Y.}}, issn = {{1934-2659}}, journal = {{Chemical Product and Process Modeling}}, keywords = {{Modeling and Simulation, General Chemical Engineering}}, publisher = {{Walter de Gruyter GmbH}}, title = {{{A new approach to model the fluid dynamics in sandwich packings}}}, doi = {{10.1515/cppm-2023-0054}}, year = {{2023}}, } @inproceedings{48760, author = {{Wehde, Janis and Bloh, Bea}}, location = {{Potsdam}}, title = {{{Methoden zur Förderung von Kompetenzen für eine demokratische Kultur - Schriftliche Reflexionen von Lehramtsstudierenden aus bildungswissenschaftlichen Seminaren}}}, year = {{2023}}, } @inproceedings{48281, abstract = {{ We propose a general framework to compute the word error rate (WER) of ASR systems that process recordings containing multiple speakers at their input and that produce multiple output word sequences (MIMO). Such ASR systems are typically required, e.g., for meeting transcription. We provide an efficient implementation based on a dynamic programming search in a multi-dimensional Levenshtein distance tensor under the constraint that a reference utterance must be matched consistently with one hypothesis output. This also results in an efficient implementation of the ORC WER which previously suffered from exponential complexity. We give an overview of commonly used WER definitions for multi-speaker scenarios and show that they are specializations of the above MIMO WER tuned to particular application scenarios. We conclude with a discussion of the pros and cons of the various WER definitions and a recommendation when to use which.}}, author = {{von Neumann, Thilo and Boeddeker, Christoph and Kinoshita, Keisuke and Delcroix, Marc and Haeb-Umbach, Reinhold}}, booktitle = {{ICASSP 2023 - 2023 IEEE International Conference on Acoustics, Speech and Signal Processing (ICASSP)}}, keywords = {{Word Error Rate, Meeting Recognition, Levenshtein Distance}}, publisher = {{IEEE}}, title = {{{On Word Error Rate Definitions and Their Efficient Computation for Multi-Speaker Speech Recognition Systems}}}, doi = {{10.1109/icassp49357.2023.10094784}}, year = {{2023}}, } @inproceedings{48275, abstract = {{MeetEval is an open-source toolkit to evaluate all kinds of meeting transcription systems. It provides a unified interface for the computation of commonly used Word Error Rates (WERs), specifically cpWER, ORC WER and MIMO WER along other WER definitions. We extend the cpWER computation by a temporal constraint to ensure that only words are identified as correct when the temporal alignment is plausible. This leads to a better quality of the matching of the hypothesis string to the reference string that more closely resembles the actual transcription quality, and a system is penalized if it provides poor time annotations. Since word-level timing information is often not available, we present a way to approximate exact word-level timings from segment-level timings (e.g., a sentence) and show that the approximation leads to a similar WER as a matching with exact word-level annotations. At the same time, the time constraint leads to a speedup of the matching algorithm, which outweighs the additional overhead caused by processing the time stamps.}}, author = {{von Neumann, Thilo and Boeddeker, Christoph and Delcroix, Marc and Haeb-Umbach, Reinhold}}, booktitle = {{Proc. CHiME 2023 Workshop on Speech Processing in Everyday Environments}}, keywords = {{Speech Recognition, Word Error Rate, Meeting Transcription}}, location = {{Dublin}}, title = {{{MeetEval: A Toolkit for Computation of Word Error Rates for Meeting Transcription Systems}}}, year = {{2023}}, } @article{47451, author = {{Rezat, Sara and Scholle, Oliver}}, journal = {{Medien im Deutschunterricht }}, number = {{(1)}}, title = {{{AnnoPy – Ein digitales Tool zur Förderung von Textkompetenzen.}}}, doi = {{https://doi.org/10.18716/ojs/midu/2023.1.5 }}, volume = {{5}}, year = {{2023}}, } @article{49610, abstract = {{Dieser Beitrag untersucht, inwiefern sich die kognitive Verankerung von der schriftbildlichen Gestaltung lexikalisch übernommener Markennamen nachweisen lässt. Dazu werden die Ergebnisse eines tachistoskopischen Wahrnehmungstests ausgewertet, bei dem einer Testgruppe die Schriftbilder (Logos) der Markennamen 'FÜR', 'Landliebe', 'MONSTER', 'GUT & GÜNSTIG', 'kinder' und 'ja!' mehrmals für Sekundenbruchteile (0,01s, 0,02s, 0,1s und 1,0s) und teils mit substituiertem Schriftzug präsentiert wurden. Insgesamt deutet die explorative Untersuchung – mit graduellen Abweichungen – in die Richtung, dass die Wahrnehmung des Schriftbilds zum Erkennen des dazugehörigen Markennamens führt. Dies ermöglicht die Schlussfolgerung, dass sich die getesteten Markennamen als multimodale Konstruktionen mit konstitutiver Schriftbildlichkeit qualifizieren.}}, author = {{Dübbert, Alexander}}, issn = {{0005-8114}}, journal = {{Beiträge zur Namenforschung}}, number = {{3}}, pages = {{315--333}}, publisher = {{Winter}}, title = {{{Die schriftbildliche Gestaltung von lexikalisch übernommenen Markennamen. Ein explorativer Wahrnehmungstest zum graduellen Entrenchment von Markennamen als multimodale Konstruktionen}}}, volume = {{58}}, year = {{2023}}, } @article{37200, abstract = {{(1) This work answers the question of whether and to what extent there is a significant difference in mechanical properties when different additive manufacturing processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF) and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally in the way a part is manufactured. (2) Known process parameters for low-porosity parts were used to fabricate tensile strength specimens. Half of the specimens were heat-treated, and all specimens were tested for mechanical properties in a quasi-static tensile test. In addition, the material hardness was determined. (3) It was found that, firstly, heat treatment resulted in a sharp increase in mechanical properties such as hardness, elastic modulus, yield strength and ultimate strength. In addition to the increase in these properties, the elongation at break also decreases significantly after heat treatment. The choice of process, on the other hand, does not give either process a clear advantage in terms of mechanical properties but shows that it is necessary to consider the essential mechanical properties for a desired application.}}, author = {{Gnaase, Stefan and Niggemeyer, Dennis and Lehnert, Dennis and Bödger, Christian and Tröster, Thomas}}, issn = {{2073-4352}}, journal = {{Crystals}}, keywords = {{Inorganic Chemistry, Condensed Matter Physics, General Materials Science, General Chemical Engineering}}, number = {{2}}, publisher = {{MDPI AG}}, title = {{{Comparative Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD & L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709}}}, doi = {{10.3390/cryst13020157}}, volume = {{13}}, year = {{2023}}, } @inproceedings{47034, author = {{Wickemeyer, Carolin and Güldenpenning, Iris and Weigelt, Matthias}}, booktitle = {{Abstracts of the 55th Autumn Meeting of Experimental Cognitive Psychology (HExKoP) }}, editor = {{Bogenschütz, L. and Fenske, P. and Ayatollahi, S. and Hamzeloo, M. and Montoya, G. A. L. and Viegas, L. and Baess, P. and Hackländer, R.}}, location = {{Hildesheim}}, pages = {{23}}, title = {{{Influence of response complexity on response inhibition for the basketball pump fake}}}, year = {{2023}}, }