TY - CHAP A1 - Gersch, Sebastian A1 - Schulz, Carsten A1 - Bagdahn, Jörg T1 - Impact of hatching strategy on mechanical properties and residual stresses in additively manufactured AlSi10Mg components T2 - TMS 2025 154th annual meeting & exhibition supplemental proceedings N2 - This study examines the impact of different hatching strategies on the mechanical and technological properties, as well as the manufacturing-induced residual stresses of additively manufactured AlSi10Mg components produced using Laser Powder Bed Fusion (LPBF). For the sample production, parallel and orthogonal hatching patterns were employed at various rotation angles, leading to differences in the mechanical properties of the components. The parallel structure exhibits significantly higher compressive residual stresses in the near-surface areas of the component, up to 33% greater than those observed in the orthogonal structure. These compressive residual stresses could counteract operational tensile stresses, potentially enhancing the load-bearing capacity of the component. The findings of this study provide insights into the targeted use of hatching strategies to optimize the mechanical properties and lifespan of components. Future works should focus on experimentally validating the simulation results using the core hole method to further improve the correlation between numerical models and actual stress distributions. Y1 - 2025 SN - 9783031807473 U6 - https://doi.org/10.1007/978-3-031-80748-0_15 SN - 2367-1181 SP - 170 EP - 181 PB - Springer CY - Cham ER - TY - CHAP A1 - Galka, Stefan A1 - Weigert, Alexander T1 - Petri Net Structures for Automated Model Generation through Process Descriptions T2 - IFAC Papers OnLine N2 - Creating simulation models and running experiments requires expertise and significant effort. Modelling complex production systems by using Petri Nets, which have a simple formalism, leads to considerable modelling effort. To reduce the workload required, fundamental processes within a production system must be analyzed and represented as generic Petri Net structures to enable their automatic generation. These structures can serve as modular building blocks to construct arbitrarily complex systems. The broader objective is to enable the automatic generation of such, based on process descriptions within a simulation framework. Built on these findings, the necessary information for developing a specialized formal process description is derived, enabling the automated generation of Petri Net simulation models for production systems. KW - Digital Twin, Simulation, Logistics Y1 - 2025 U6 - https://doi.org/10.1016/j.ifacol.2025.09.093 VL - 59 IS - 10 SP - 542 EP - 547 PB - Elsevier ER - TY - CHAP A1 - Galka, Stefan T1 - Integration and usage of simulation-based digital twins in internal logistics systems T2 - IFAC Papers OnLine N2 - This paper presents the workflows of Digital Twins in practice, with reference to three case studies. The objective is to present the processing of data and information flow. The most essential requirements for the design of a Digital Twin are synthesized from the case studies and a layer model is presented, which was developed based on the three case studies. The model consists of four functional layers and an overarching data- and workflow-management-backbone. A front-end layer is proposed for communication with the end user. KW - Digital Twin, Simulation, Logistics Y1 - 2025 U6 - https://doi.org/10.1016/j.ifacol.2025.09.152 VL - 59 IS - 10 SP - 897 EP - 902 PB - Elsevier ER - TY - CHAP A1 - Mauerer, Wolfgang ED - Ali, Shaukat ED - Barzen, Johanna ED - Delgado, Andrea ED - Müller, Hausi A. ED - Murillo, Juan Manuel T1 - Quantum Software = Quantum minus Software? T2 - Dagstuhl Reports : Quantum Software Engineering : Report from Dagsthul Seminar 24512 N2 - The Dagstuhl Seminar 24512 on "Quantum Software Engineering" was held from December 15 to 20, 2024. It brought together 26 participants from industry and academia from 13 different countries, including senior and junior researchers as well as practitioners in the field of Quantum Software Engineering. The aim of the seminar was to advance software engineering methods and tools for the engineering of hybrid quantum systems by promoting personal interaction and open discussion among researchers who are already working in this emerging area of knowledge. The first day of the seminar was devoted to the topic "When software engineering meets quantum mechanics", while the second day focused on "Quantum software engineering and its challenges." During both days, 16 invited presentations were given. The rest of the seminar was organized into three working groups to address the topics "Quantum Software Design, Modelling and Architecturing", "Adaptive Hybrid Quantum Systems", and "Quantum Software Quality Assurance". The seminar was a very fruitful experience for all participants both in terms of scientific outcomes and in terms of the personal relationships that were generated to jointly address future experiences. Y1 - 2025 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:0030-drops-230469 VL - 14 IS - 12 SP - 73 EP - 74 PB - Dagstuhl Publishing ER - TY - JOUR A1 - Schneider, Diana A1 - Weber, Karsten T1 - AI for decision support: What are possible futures, social impacts, regulatory options, ethical conundrums and agency constellations? JF - TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis N2 - Although artificial intelligence (AI) and automated decision-making systems have been around for some time, they have only recently gained in importance as they are now actually being used and are no longer just the subject of research. AI to support decision-making is thus affecting ever larger parts of society, creating technical, but above all ethical, legal, and societal challenges, as decisions can now be made by machines that were previously the responsibility of humans. This introduction provides an overview of attempts to regulate AI and addresses key challenges that arise when integrating AI systems into human decision-making. The Special topic brings together research articles that present societal challenges, ethical issues, stakeholders, and possible futures of AI use for decision support in healthcare, the legal system, and border control. N2 - Obwohl künstliche Intelligenz (KI) und automa‑tisierte Entscheidungssysteme schon länger existieren, haben sie erst in jüngster Zeit stark an Bedeutung gewonnen, da sie nun tatsäch‑lich eingesetzt werden und nicht mehr nur Gegenstand der Forschung sind. KI zur Unterstützung von Entscheidungen betrifft somit immer grö‑ßere Teile der Gesellschaft, wodurch technische, vor allem aber ethi‑sche, rechtliche und soziale Herausforderungen entstehen, da nun Ent‑scheidungen von Maschinen getroffen werden können, die bisher in der Verantwortung von Menschen lagen. Diese Einführung gibt einen Über‑blick über die Versuche, KI zu regulieren, und geht auf zentrale Heraus‑forderungen ein, die sich aus der Integration von KI‑Systemen in die menschliche Entscheidungsfindung ergeben. Das Special topic versammelt Forschungsartikel, die gesellschaftliche Herausforderungen, ethi‑sche Fragen, Akteur*innen sowie mögliche Zukünfte des KI‑Einsatzes zur Entscheidungsunterstützung in der Gesundheitsversorgung, dem Rechtssystem und bei der Grenzkontrolle präsentieren. T2 - KI zur Entscheidungsunterstützung: Was sind mögliche Zukünfte, soziale Auswirkungen, regulatorische Optionen, ethische Fragen und Akteurskonstellationen? KW - artificial intelligence (AI) KW - decision support KW - socio-technical systems KW - regulation KW - social impacts Y1 - 2024 U6 - https://doi.org/10.14512/tatup.33.1.08 SN - 2567-8833 SN - 2568-020X VL - 33 IS - 1 SP - 8 EP - 13 PB - oekom verlag CY - München ER - TY - JOUR A1 - Schneider, Diana A1 - Weber, Karsten T1 - AI‑based decision support systems and society: An opening statement JF - TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis N2 - Although artificial intelligence (AI) and automated decision-making systems have been around for some time, they have only recently gained in importance as they are now actually being used and are no longer just the subject of research. AI to support decision-making is thus affecting ever larger parts of society, creating technical, but above all ethical, legal, and societal challenges, as decisions can now be made by machines that were previously the responsibility of humans. This introduction provides an overview of attempts to regulate AI and addresses key challenges that arise when integrating AI systems into human decision-making. The Special topic brings together research articles that present societal challenges, ethical issues, stakeholders, and possible futures of AI use for decision support in healthcare, the legal system, and border control. KW - artificial intelligence (AI) KW - decision support KW - socio-technical systems KW - regulation KW - social impacts Y1 - 2024 U6 - https://doi.org/10.14512/tatup.33.1.9 VL - 33 IS - 1 SP - 9 EP - 13 PB - Oekom ER - TY - JOUR A1 - Malovanij, Julian A1 - Herrmann, Frank T1 - Implementierung eines Treibers zur Anbindung von Mikrocontroller-basierten Maschinen über OPC-UA an das Konfigurations- und Inbetriebnahme-Tool von SSI Schäfer JF - Anwendungen und Konzepte der Wirtschaftsinformatik N2 - Das Thema „Implementierung eines Treibers zur Anbindung von Mikrocontroller-basierten Maschinen über OPC-UA an das Konfigurations- und Inbetriebnahme-Tool von SSI Schäfer“ soll zu einem Gerätetreiber für das Konfigurations- und Inbetriebnahme-Tool CPM führen, welcher den Anschluss von neuen Maschinen an ebendieses ermöglicht. Aktuell befinden sich diese noch in Entwicklung, jedoch sollen sie, von den Vorteilen des CPM-Tools profitieren, welches unter anderem den Inbetriebnahmeprozess einfacher und schneller gestalten kann. Ziel ist somit die Anbindung dieser Maschinen durch die Spezifikation einer Schnittstelle und der Implementierung dieser auf Basis der Schnittstellen des CPM-Tools, in welches sich der Gerätetreiber nahtlos einfügen soll. KW - Gerätetreiber KW - Mikrokontroller-basierte Maschinen KW - SPS KW - OPC-UA Y1 - 2024 U6 - https://doi.org/10.26034/lu.akwi.2024.6210 SN - 2296-4592 IS - 20 SP - 54 EP - 66 PB - AKWI ER - TY - CHAP A1 - Galka, Stefan A1 - Schmid, Florian ED - Schlund, Sebastian ED - Ansari, Fazel T1 - Initialization of Simulation-Based Digital Twins for Internal Transport Systems T2 - IFAC-PapersOnLine N2 - To support operational decisions using simulation-based digital twins, it is crucial to synchronize the simulation model quickly and accurately with the load state in the real system. This minimizes the typical transient behavior of material flow simulations to a short period of time. This paper presents a concept for initializing a simulation model using the example of a distribution center that uses SAP EWM as a warehouse management system. As part of a study, the influence of the presented initialization concept on the simulation models’ transient behavior is investigated. The simulation model used as a reference is in an ‘empty’ load state at the beginning of the simulation. The study results indicate that the proposed approach can significantly shorten the transient behavior. KW - Discrete event simulation KW - Digital Twins KW - Logistic KW - Modell Initialization Y1 - 2024 U6 - https://doi.org/10.1016/j.ifacol.2024.09.127 SN - 2405-8963 VL - 58 IS - 19 SP - 1084 EP - 1089 CY - Wien ER - TY - JOUR A1 - Markov-Glazer, Alon A1 - Elbe, Anne-Marie A1 - Schliermann, Rainer T1 - The use of psychological skills in deaflympic sport JF - European Journal of Adapted Physical Activity N2 - This study explores the use of psychological skills among Deaflympic athletes and aims to provide initial insights into sport psychology practices in this overlooked population. To this end, the frequency of psychological skills’ usage, usage patterns, and differences between subgroups were examined within this population. The Test of Performance Strategies (TOPS) was administered to 84 German Deaflympic athletes (mean age = 28; 27% female) along with biographical questions (e.g., hearing status). The findings indicate that Deaflympic athletes regularly utilize psychological skills in training and competition, displaying similar usage to that of Olympic athletes. However, only a minority of Deaflympic athletes train their skills with professional consultants. Additionally, relaxation techniques were employed rarely in comparison to the other investigated skills. This study’s findings contribute to the foundation of sport psychology research with Deaflympic athletes and underscore the need for a differentiated approach in tailoring interventions for this population. KW - Deaf culture KW - Deaflympian KW - psychological skills training KW - TOPS Y1 - 2024 U6 - https://doi.org/10.5507/euj.2024.012 VL - 17 IS - 15 PB - European Federation of Adapted Physical Activity CY - Olomouc ER - TY - JOUR A1 - Thieme, Dorothea A1 - Linnemann, Birgit A1 - Mühlberg, Katja Sibylle A1 - Noppeney, Thomas A1 - Kreutz, Maria A1 - Thieme, Marcus T1 - Compression Therapy in Acute Deep Venous Thrombosis of the Lower Limb and for the Prevention of Post-Thrombotic Syndrome BT - A Review Based on a Structured Literature Search JF - Deutsches Ärzteblatt International N2 - Background: After an acute deep venous thrombosis (DVT) of the lower limb, 20% to 63% of patients develop post-thrombotic syndrome (PTS). In this review, we address the efficacy of compression therapy in the treatment of acute DVT of the lower limb, and for the prevention of PTS. Methods: 12 randomized controlled trials (RCTs) and one meta-analysis, with a total of 3751 patients, were identified in a structured literature search. Results: Two RCTs showed that adding compression therapy to drug treatment in the first 9 days of the acute phase of lower limb DVT led to more rapid pain relief (p<0.050) and less swelling (remaining difference in circumference, 1 cm versus 3 cm, p<0.050). As for the prevention of PTS, four RCTs showed a short-term benefit or no benefit of compression therapy. In three further RCTs, medical compression stockings (MCS) brought about a 16% to 27% absolute reduction of the frequency and severity of PTS (47% vs. 20 %, p<0.001; 40% vs. 21% (95% confidence intervals [29.9; 50.1] and [12.7; 29.5], respectively; and 58% vs. 42%, relative risk [RR] 0.73 [0,55; 0.96]). The benefit of MCS was also confirmed in a recent meta-analysis (RR 0.66 [0.44; 0.99], I2 = 88%). Thigh-length MCS were not superior to knee-length MCS for the prevention of PTS (33% vs. 36%, hazard ratio [HR] 0.93 [0.62; 1.41]). Individual, symptomoriented tailoring of the duration of treatment was not inferior to a fixed treatment duration of 24 months (29% vs. 28%; odds ratio [OR] 1.06 [0.78;1.44]). Conclusion: Compression therapy relieves symptoms in acute DVT and lessens the frequency and severity of PTS. It is therefore recommended as standard treatment. Y1 - 2024 U6 - https://doi.org/10.3238/arztebl.m2024.0001 VL - 121 IS - 6 SP - 188 EP - 194 CY - Berlin ER -