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Innovative, environmentally friendly decoating of metallised plastic products using laser technology

Sover, Alexandru; Zink, Markus (2024)

The 28th Edition of International Conference (IMANEE 2024), Athen Oct. 2024 .


Open Access
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Mechanical behavior of macroscopic interfaces for 3D printed multi-material samples made of dissimilar materials

Sover, Alexandru; Boca, Marius-Andrei; Ermolai, Vasile; Mihalache, Andrei Marius ...

Mechanics & Industry - Advanced Approaches in Manufacturing Engineering and Technologies Design Volume 25, 2024, 24.
DOI: 10.1051/meca/2024017


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Bedarf an digitaler Lehrkräftefortbildung aus der Perspektive von Landesinstituten

Ortwig, Julia; Breins, B; Quarda, Ann-Kathrin; Gläser-Zikuda, Michaela; Kammerl, Rudolf...

lernen:digital-Tagung „Digitale Transformation für Schule und die Lehrkräftebildung gestalten“ in Potsdam.


Peer Reviewed

Ideation: Die Qualität von menschengenerierten und KI-generierten Ideen im Vergleich

Joosten, J; Bilgram, Volker; Hahn, A; Klug, Katharina; Totzek, , D. (2024)

transfer - Zeitschrift für Kommunikation und Markenmanagement 2024 (4), 100-105.


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Supporting the Identification of Natural Sounds in Ecoacoustic Soundscapes through Spectrogram-based Analysis Methods

Popp, Jana; Edler, Bernd; Pöpel, Cornelius (2024)

IEEE 5th International Symposium on the Internet of Sounds (IS2) 2024, 1-9.
DOI: 10.1109/IS262782.2024.10704212


Peer Reviewed
 

As a contribution to addressing the challenges posed by climate change, acoustic ecology, and in particular the study of changes in soundscapes, provides an opportunity to better understand and subsequently manage climate change. This paper focuses on the development of new spectrogram-based analysis methods to expand the possibilities of comparative analysis of soundscapes. The database to be analysed with the new methods is provided by the WikliNathi project, a long-term monitoring study to investigate the sonic changes of populations of living organisms as well as geophone and anthropophone sounds in a nature reserve. The developed methods of analysis will be presented in detail. Selected audio recordings are analysed for changes in the sounds of great tits, grasshoppers and frogs from 2018 to 2023 using spectral flatness, temporal flatness and onset detection in aligned time-frequency regions. The evaluation of the results shows that the proposed new methods can be used to obtain more detailed and complementary results in future studies as part of this and other bioacoustic projects.


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Towards Climate-Neutral Energy: Assessing Equations for Optimization of Photovoltaic Production Estimates

Sutariya, Maheshkumar; Abrao, Raphael; Fonseca, Luis; Vaidya, Haresh (2024)

EU PVSEC Proceedings 2024, 4CV.1.
DOI: 10.4229/EUPVSEC2024/4CV.1.10


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Optimizing Intercultural Trainings using Social Robots

Garg, Ritam (2024)

Sino-German Research Network of Management Sciences Conference on: ‘Digital Transformation in China and Germany: Strategies, Structures, and Solutions for Ageing Societies’ 23-25.09.2024, Bayreuth Germany.



Aufbruch beim DFB? Wahrnehmung und Erwartungshaltung 100 relevanter Stakeholder

Wiske, Jana (2024)

Jahrestagung der DGPuK-Fachgruppe Mediensport und Sportkommunikation in Hamburg.


Peer Reviewed

Motiviert zum Erfolg testen? Motivation als Moderator und abhängige Variable von Testeffekten im Lehramtsstudium

Naujoks-Schober, Nick ; Harder, Bettina; Dresel, Markus; Händel, Marion (2024)

53. Konferenz der Deutschen Gesellschaft für Psychologie (DGPs) in Wien, Österreich.


Peer Reviewed

OPTOkopter - a flying anemometer and Application of OPTOkopter measurements in research projects WINDbreaks and WINDforest

Thielicke, William; Buchele, Alexander (2024)

20 Jahre Windenergieforschung und Ausbildung, Stuttgarter Lehrstuhl für Windenergie (SWE), Uni Stuttgart 2024.



Unraveling the reciprocal effects of monitoring strategies and monitoring judgments

Händel, Marion; Nett, Ulrike; Bryce, Donna; Dresel, Markus (2024)

Paper presented at the biennial meeting of the EARLI Special Interest Group 16 – Metacognition. Heidelberg.


Peer Reviewed

Ways to foster monitoring accuracy: Effects of generative interventions on self-regulated learning (Discussant)

Händel, Marion (2024)

Symposium at the biennial meeting of the EARLI Special Interest Group 16 – Metacognition.


Peer Reviewed

Tolerances in Mechanisms

Husch, Julia; Walter, Michael S. J. (2024)

Research in Tolerancing 2024, 65-99.
DOI: 10.1007/978-3-031-64225-8_4


Peer Reviewed
 

In this chapter, an overview is given of the research work during the years 2007 until 2016 in the field of tolerance analysis, optimization and synthesis of mechanisms ([11] and [17]). At the beginning, the challenges related to mechanisms are highlighted, especially the time-dependent behaviour of a mechanism during its operation and the different kinds of deviation occuring during the production and the operation of the mechanism. After that, the integrated approach for the statistical tolerance analysis of mechanisms is described. This approach is then enlarged to a complete tolerance analysis, optimization and synthesis approach before its applicability is demonstrated in a case study. The chapter will end with a summary.

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Implementierung eines Smart Grids in ein betriebsunabhängiges Simulationsmodell

Stromberger, Julian; Dettelbacher, Johannes; Buchele, Alexander (2024)

Tagungsband Langbeiträge ASIM SST 2024, 27. ASIM Symposium Simulationstechnik, 4.9.-6.9.2024, Universität der Bundeswehr München 2024, 61-65.
DOI: 10.11128/arep.47.a4734


Open Access Peer Reviewed
 

Diese Studie beschreibt die Entwicklung eines betriebsunabhängigen Simulationsmodells für elektrifizierte Druckgießereien, die ihren Energiebedarf mit Hilfe eines Smart Grid Systems decken. Das Modell verwendet reale Wetter- und Börsenstrompreisdaten für den Simulationszeitraum. Mit Hilfe des Modells können die Stromkosten für eine Produktion zu einem bestimmten Zeitpunkt (Tages- und Jahreszeit) sowie die Wirtschaftlichkeit verschiedener PV-Anlagen- und Stromspeichervarianten ermittelt und verglichen werden. Zudem ermöglicht es die Untersuchung des Anteils der verschiedenen Energieträger für die jeweilige Konfiguration. Dies kann mit Hilfe des Modells für Standorte in ganz Deutschland durchgeführt werden. Darüber hinaus werden in dieser Arbeit beispielhafte Simulationsstudien vorgestellt, die den breiten Anwendungsbereich des Modells aufzeigen. Aus den Ergebnissen kann ein erster Überblick über Einsparungs- und Optimierungsmöglichkeiten gewonnen werden. Perspektivisch stellt das Modell eine Grundlage dar, um mittels simulationsgestützter Optimierung optimale Anlagenlayouts und Produktionszeitpunkte zu ermitteln.

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Fingernails, tattoos, and iconic photos: Personal branding at the 2024 Olympics

Wiske, Jana (2024)

Olympic and Paralympic Analysis 2024.


Open Access
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A novel approach on artificial aging of nylon 12 powder for laser powder bed fusion

Vendittoli, Valentina; Polini, Wilma; Walter, Michael S. J....

Rapid Prototyping Journal 2024 (9), 30 | 1836-1845.
DOI: 10.1108/RPJ-12-2023-0430


Peer Reviewed
 

Purpose - This study aims to address challenges in the Laser Powder Bed Fusion process of polymers, focusing on the considerable amount of unsintered powder left post-printing. The objective is to understand the altered properties of this powder and find solutions to improve the process, reduce waste, and explore reusing reprocessed powder.

Design/methodology/approach - A novel methodology is employed to generate reprocessed powder without traditional printing, reducing time, cost, and waste. The approach mimics the aging effects during the printing process, providing insights into particle size distribution and thermal behavior.

Findings - Results reveal insights into artificial aging, showing an 8.2% decrease in particle size (60.256 - 69.183 μm) and a 9.1% increase in particle size (17.378 - 19.953 μm) compared to unsintered powder. Thermal behavior closely mirrors used powders, with variations in enthalpy of fusion (-0.55% to 2.69%) and degree of crystallinity (0.19% to 2.64%). The proposed methodology produces results that differ from those due to printing under 3% from a thermal point of view. The
new process reduces the time needed for aged powder, contributing to cost savings and waste reduction.

Originality/value - The study introduces a novel method for reprocessed powder generation, deviating from traditional printing. The originality lies in artificially aging powders, providing comparable results to actual printing. This approach offers efficiency, time savings, and waste reduction in the Laser Powder Bed Fusion process, presenting a valuable avenue for further research.

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Inference Optimizations for Large Language Models: Effects, Challenges, and Practical Considerations

Donisch, Leo; Schacht, Sigurd; Lanquillon, Carsten (2024)

Arxiv.
DOI: 10.48550/arXiv.2408.03130


Open Access
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An approach to optimize inference of the DIART speaker diarization pipeline

Aperdannier, Roman; Schacht, Sigurd; Piazza, Alexander (2024)

Arxiv.
DOI: 10.48550/arXiv.2408.02341


Open Access
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Toward a Digital Empathy Framework: Evaluating User Experience Research Methods

Joosten, J; Hahn, A; Klug, Katharina; Riedmüller, Florian; Totzek, , D. (2024)

Marketing Review St. Gallen 4, 80-87.


Peer Reviewed

Cost Function Approach for Dynamical Component Analysis: Full Recovery of Mixing and State Matrix

Hüper, Knut; Schlarb, Markus; Uhl, Christian (2024)

Automation 2024, 5(3) | 360-372.
DOI: 10.3390/automation5030022


Open Access Peer Reviewed
 

A reformulation of the dynamical component analysis (DyCA) via an optimization-free approach is presented. The original cost function approach is converted into a numerical linear algebra problem, i.e., the computation of coupled singular-value decompositions. A simple algorithm is presented together with numerical experiments to document the feasability of the approach. This methodology is able to recover the mixing and state matrices of multivariate signals from high-dimensional measured data fully.

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