--- _id: '60592' abstract: - lang: eng text: This study investigates the occurrence and mitigation of liquid metal embrittlement occurring during resistance spot welding in deep-drawn automotive components, specifically focusing on an S-Rail made from advanced high-strength steel. A simulation-based liquid metal embrittlement risk criterion based on local major component stresses was established and used to quantify and compare liquid metal embrittlement risks between different tests. Experimental and numerical analyses were conducted, revealing that springback significantly impacts liquid metal embrittlement formation. Adjustments in electrode geometry and hold time post-welding were found to mitigate liquid metal embrittlement risks. The effects of stack-up configuration and related parameter settings on liquid metal embrittlement occurrence were identified and liquid metal embrittlement was effectively prevented across both stack-up configurations. These findings advance the understanding of liquid metal embrittlement mechanisms and provide practical approaches to enhance the spot weld quality in AHSS-based body-in-whites. article_type: original author: - first_name: Max full_name: Biegler, Max last_name: Biegler - first_name: Keke full_name: Yang, Keke id: '65085' last_name: Yang orcid: 0000-0001-9201-9304 - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Michael full_name: Rethmeier, Michael last_name: Rethmeier citation: ama: Biegler M, Yang K, Meschut G, Rethmeier M. Occurrence and avoidance of liquid metal embrittlement in resistance spot welding of springback-afflicted deep-drawn components. Science and Technology of Welding and Joining. Published online 2025. doi:10.1177/13621718251340452 apa: Biegler, M., Yang, K., Meschut, G., & Rethmeier, M. (2025). Occurrence and avoidance of liquid metal embrittlement in resistance spot welding of springback-afflicted deep-drawn components. Science and Technology of Welding and Joining. https://doi.org/10.1177/13621718251340452 bibtex: '@article{Biegler_Yang_Meschut_Rethmeier_2025, title={Occurrence and avoidance of liquid metal embrittlement in resistance spot welding of springback-afflicted deep-drawn components}, DOI={10.1177/13621718251340452}, journal={Science and Technology of Welding and Joining}, publisher={SAGE Publications}, author={Biegler, Max and Yang, Keke and Meschut, Gerson and Rethmeier, Michael}, year={2025} }' chicago: Biegler, Max, Keke Yang, Gerson Meschut, and Michael Rethmeier. “Occurrence and Avoidance of Liquid Metal Embrittlement in Resistance Spot Welding of Springback-Afflicted Deep-Drawn Components.” Science and Technology of Welding and Joining, 2025. https://doi.org/10.1177/13621718251340452. ieee: 'M. Biegler, K. Yang, G. Meschut, and M. Rethmeier, “Occurrence and avoidance of liquid metal embrittlement in resistance spot welding of springback-afflicted deep-drawn components,” Science and Technology of Welding and Joining, 2025, doi: 10.1177/13621718251340452.' mla: Biegler, Max, et al. “Occurrence and Avoidance of Liquid Metal Embrittlement in Resistance Spot Welding of Springback-Afflicted Deep-Drawn Components.” Science and Technology of Welding and Joining, SAGE Publications, 2025, doi:10.1177/13621718251340452. short: M. Biegler, K. Yang, G. Meschut, M. Rethmeier, Science and Technology of Welding and Joining (2025). date_created: 2025-07-12T22:44:20Z date_updated: 2025-07-14T08:38:19Z ddc: - '620' department: - _id: '157' doi: 10.1177/13621718251340452 file: - access_level: closed content_type: application/pdf creator: kekeyang date_created: 2025-07-14T08:37:40Z date_updated: 2025-07-14T08:37:40Z file_id: '60599' file_name: KYA_VÖ7.pdf file_size: 4534008 relation: main_file success: 1 file_date_updated: 2025-07-14T08:37:40Z has_accepted_license: '1' language: - iso: eng main_file_link: - open_access: '1' oa: '1' publication: Science and Technology of Welding and Joining publication_identifier: issn: - 1362-1718 - 1743-2936 publication_status: published publisher: SAGE Publications quality_controlled: '1' related_material: link: - relation: confirmation url: 10.1177/13621718251340452 status: public title: Occurrence and avoidance of liquid metal embrittlement in resistance spot welding of springback-afflicted deep-drawn components type: journal_article user_id: '65085' year: '2025' ... --- _id: '60873' abstract: - lang: eng text: "Abstract\r\n Variations in circadian rhythm-related genes influence the individual chronotype. Here, we hypothesize that the peak of clock gene expression at 7 a.m. differs between young adults with a late chronotype and young adults with an early chronotype. Participants of the Chronotype and Nutrition nutritional trial (ChroNu study) were selected for their chronotype assessed by the Munich Chronotype questionnaire (MCTQ) and actigraphy. Total RNA was isolated from CD14+ monocytes of participants at 7 a.m. on the run-in day. Expression levels of seven clock genes (PER1, PER2, PER3, NR1D1, NR1D2, CRY1 and CRISPLD2) of individuals with early (n = 11) or late chronotypes (n = 19) were analysed by reverse transcription quantitative polymerase chain reaction. Difference in expression levels was tested by Mann Whitney-U test. The relative expression levels of the selected genes were not significantly different between individuals with early and late chronotypes (all p > 0.07). Contrary to expectation, clock gene expression levels at 7 a.m. was similar in individuals with early and late chronotypes. Further studies on larger sample sizes with multiple sampling time points should elucidate whether gene expression is altered at other day times underscoring the biological difference between individuals with early or late chronotypes." article_number: '26709' author: - first_name: Bettina full_name: Krueger, Bettina id: '49428' last_name: Krueger orcid: 0000-0001-5351-1785 - first_name: Luisa Sophie full_name: Rajcsanyi, Luisa Sophie last_name: Rajcsanyi - first_name: Katharina full_name: Hundertmark, Katharina last_name: Hundertmark - first_name: Bianca full_name: Stutz, Bianca id: '77099' last_name: Stutz - first_name: Anke full_name: Hinney, Anke last_name: Hinney - first_name: Anette E. full_name: Buyken, Anette E. id: '65985' last_name: Buyken citation: ama: Krueger B, Rajcsanyi LS, Hundertmark K, Stutz B, Hinney A, Buyken AE. Morning clock gene expression in young adults of early and late chronotypes. Scientific Reports. 2025;15(1). doi:10.1038/s41598-025-12423-7 apa: Krueger, B., Rajcsanyi, L. S., Hundertmark, K., Stutz, B., Hinney, A., & Buyken, A. E. (2025). Morning clock gene expression in young adults of early and late chronotypes. Scientific Reports, 15(1), Article 26709. https://doi.org/10.1038/s41598-025-12423-7 bibtex: '@article{Krueger_Rajcsanyi_Hundertmark_Stutz_Hinney_Buyken_2025, title={Morning clock gene expression in young adults of early and late chronotypes}, volume={15}, DOI={10.1038/s41598-025-12423-7}, number={126709}, journal={Scientific Reports}, publisher={Springer Science and Business Media LLC}, author={Krueger, Bettina and Rajcsanyi, Luisa Sophie and Hundertmark, Katharina and Stutz, Bianca and Hinney, Anke and Buyken, Anette E.}, year={2025} }' chicago: Krueger, Bettina, Luisa Sophie Rajcsanyi, Katharina Hundertmark, Bianca Stutz, Anke Hinney, and Anette E. Buyken. “Morning Clock Gene Expression in Young Adults of Early and Late Chronotypes.” Scientific Reports 15, no. 1 (2025). https://doi.org/10.1038/s41598-025-12423-7. ieee: 'B. Krueger, L. S. Rajcsanyi, K. Hundertmark, B. Stutz, A. Hinney, and A. E. Buyken, “Morning clock gene expression in young adults of early and late chronotypes,” Scientific Reports, vol. 15, no. 1, Art. no. 26709, 2025, doi: 10.1038/s41598-025-12423-7.' mla: Krueger, Bettina, et al. “Morning Clock Gene Expression in Young Adults of Early and Late Chronotypes.” Scientific Reports, vol. 15, no. 1, 26709, Springer Science and Business Media LLC, 2025, doi:10.1038/s41598-025-12423-7. short: B. Krueger, L.S. Rajcsanyi, K. Hundertmark, B. Stutz, A. Hinney, A.E. Buyken, Scientific Reports 15 (2025). date_created: 2025-08-05T05:17:48Z date_updated: 2025-08-05T05:19:20Z department: - _id: '35' - _id: '22' doi: 10.1038/s41598-025-12423-7 intvolume: ' 15' issue: '1' language: - iso: eng publication: Scientific Reports publication_identifier: issn: - 2045-2322 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Morning clock gene expression in young adults of early and late chronotypes type: journal_article user_id: '49428' volume: 15 year: '2025' ... --- _id: '60881' abstract: - lang: eng text: Hybrid modeling aims to combine physical and data-driven models to increase simulation accuracy without losing physical interpretability. In the context of dynamic mechanical systems, this enables the compensation of modeling inaccuracies that arise from simplifications, missing effects, or uncertain parameters. In this work, a hybrid model is used as a starting point, in which the discrepancy between simulation and measurement is learned and compensated by a data-driven correction element. To integrate such models into commercial multibody system (MBS) software like MSC Adams and Simpack, the formulation is adapted to operate directly on the force level. This allows implementation via standard co-simulation interfaces without modifying the system’s differential equations or solvers. The method is demonstrated using a single-mass oscillator with synthetic measurement data. Results show that the coupled simulation works reliably and that the hybrid model significantly improves accuracy while remaining compatible with established industrial simulation workflows. author: - first_name: Meike Claudia full_name: Wohlleben, Meike Claudia id: '43991' last_name: Wohlleben orcid: 0009-0009-9767-7168 - first_name: Jill Mercedes full_name: Linneweber, Jill Mercedes id: '57639' last_name: Linneweber - first_name: Jan full_name: Schütte, Jan id: '22109' last_name: Schütte orcid: 0000-0001-9025-9742 - first_name: Walter full_name: Sextro, Walter id: '21220' last_name: Sextro citation: ama: 'Wohlleben MC, Linneweber JM, Schütte J, Sextro W. Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach. Published online 2025.' apa: 'Wohlleben, M. C., Linneweber, J. M., Schütte, J., & Sextro, W. (2025). Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach. MDPI AG.' bibtex: '@article{Wohlleben_Linneweber_Schütte_Sextro_2025, title={Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach}, publisher={MDPI AG}, author={Wohlleben, Meike Claudia and Linneweber, Jill Mercedes and Schütte, Jan and Sextro, Walter}, year={2025} }' chicago: 'Wohlleben, Meike Claudia, Jill Mercedes Linneweber, Jan Schütte, and Walter Sextro. “Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach.” MDPI AG, 2025.' ieee: 'M. C. Wohlleben, J. M. Linneweber, J. Schütte, and W. Sextro, “Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach.” MDPI AG, 2025.' mla: 'Wohlleben, Meike Claudia, et al. Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach. MDPI AG, 2025.' short: M.C. Wohlleben, J.M. Linneweber, J. Schütte, W. Sextro, (2025). date_created: 2025-08-06T06:42:30Z date_updated: 2025-08-07T06:47:23Z language: - iso: eng publication_status: published publisher: MDPI AG status: public title: 'Enabling Hybrid Modeling in Commercial MBS Software: A Force-Level Approach' type: preprint user_id: '43991' year: '2025' ... --- _id: '60897' abstract: - lang: eng text: 'This work examines the integration of large language models (LLMs) into multi-agent simulations by replacing the hard-coded programs of agents with LLM-driven prompts. The proposed approach is showcased in the context of two examples of complex systems from the field of swarm intelligence: ant colony foraging and bird flocking. Central to this study is a toolchain that integrates LLMs with the NetLogo simulation platform, leveraging its Python extension to enable communication with GPT-4o via the OpenAI API. This toolchain facilitates prompt-driven behavior generation, allowing agents to respond adaptively to environmental data. For both example applications mentioned above, we employ both structured, rule-based prompts and autonomous, knowledge-driven prompts. Our work demonstrates how this toolchain enables LLMs to study self-organizing processes and induce emergent behaviors within multi-agent environments, paving the way for new approaches to exploring intelligent systems and modeling swarm intelligence inspired by natural phenomena. We provide the code, including simulation files and data at https://github.com/crjimene/swarm_gpt.' article_number: '1593017' author: - first_name: Cristian full_name: Jimenez-Romero, Cristian last_name: Jimenez-Romero - first_name: Alper full_name: Yegenoglu, Alper id: '117951' last_name: Yegenoglu orcid: 0000-0001-8869-215X - first_name: Christian full_name: Blum, Christian last_name: Blum citation: ama: 'Jimenez-Romero C, Yegenoglu A, Blum C. Multi-agent systems powered by large language models: applications in swarm intelligence. Frontiers in Artificial Intelligence. 2025;8. doi:10.3389/frai.2025.1593017' apa: 'Jimenez-Romero, C., Yegenoglu, A., & Blum, C. (2025). Multi-agent systems powered by large language models: applications in swarm intelligence. Frontiers in Artificial Intelligence, 8, Article 1593017. https://doi.org/10.3389/frai.2025.1593017' bibtex: '@article{Jimenez-Romero_Yegenoglu_Blum_2025, title={Multi-agent systems powered by large language models: applications in swarm intelligence}, volume={8}, DOI={10.3389/frai.2025.1593017}, number={1593017}, journal={Frontiers in Artificial Intelligence}, publisher={Frontiers Media SA}, author={Jimenez-Romero, Cristian and Yegenoglu, Alper and Blum, Christian}, year={2025} }' chicago: 'Jimenez-Romero, Cristian, Alper Yegenoglu, and Christian Blum. “Multi-Agent Systems Powered by Large Language Models: Applications in Swarm Intelligence.” Frontiers in Artificial Intelligence 8 (2025). https://doi.org/10.3389/frai.2025.1593017.' ieee: 'C. Jimenez-Romero, A. Yegenoglu, and C. Blum, “Multi-agent systems powered by large language models: applications in swarm intelligence,” Frontiers in Artificial Intelligence, vol. 8, Art. no. 1593017, 2025, doi: 10.3389/frai.2025.1593017.' mla: 'Jimenez-Romero, Cristian, et al. “Multi-Agent Systems Powered by Large Language Models: Applications in Swarm Intelligence.” Frontiers in Artificial Intelligence, vol. 8, 1593017, Frontiers Media SA, 2025, doi:10.3389/frai.2025.1593017.' short: C. Jimenez-Romero, A. Yegenoglu, C. Blum, Frontiers in Artificial Intelligence 8 (2025). date_created: 2025-08-06T14:59:29Z date_updated: 2025-08-08T11:37:53Z doi: 10.3389/frai.2025.1593017 intvolume: ' 8' language: - iso: eng publication: Frontiers in Artificial Intelligence publication_identifier: issn: - 2624-8212 publication_status: published publisher: Frontiers Media SA status: public title: 'Multi-agent systems powered by large language models: applications in swarm intelligence' type: journal_article user_id: '117951' volume: 8 year: '2025' ... --- _id: '58657' abstract: - lang: eng text: "The rapid growth of 3D printing technology has transformed a wide range of industries, enabling the on-demand production of complex objects, from aerospace components to medical devices. However, this technology also introduces significant security challenges. Previous research highlighted the security implications of G-Codes—commands used to control the printing process. These studies assumed powerful attackers and focused on manipulations of the printed models, leaving gaps in understanding the full attack potential.\r\n\r\nIn this study, we systematically analyze security threats associated with 3D printing, focusing specifically on vulnerabilities caused by G-Code commands. We introduce attacks and attacker models that assume a less powerful adversary than traditionally considered, broadening the scope of potential security threats. Our findings show that even minimal access to the 3D printer can result in significant security breaches, such as unauthorized access to subsequent print jobs or persistent misconfiguration of the printer. We identify 278 potentially malicious G-Codes across the attack categories Information Disclosure, Denial of Service, and Model Manipulation. Our evaluation demonstrates the applicability of these attacks across various 3D printers and their firmware. Our findings underscore the need for a better standardization process of G-Codes and corresponding security best practices.\r\n" author: - first_name: Jost full_name: Rossel, Jost id: '58331' last_name: Rossel orcid: 0000-0002-3182-4059 - first_name: Vladislav full_name: Mladenov, Vladislav last_name: Mladenov - first_name: Nico full_name: Wördenweber, Nico last_name: Wördenweber - first_name: Juraj full_name: Somorovsky, Juraj id: '83504' last_name: Somorovsky orcid: 0000-0002-3593-7720 citation: ama: 'Rossel J, Mladenov V, Wördenweber N, Somorovsky J. Security Implications of Malicious G-Codes in 3D Printing. In: Proceedings of the 34th USENIX Security Symposium. ; 2025:1867-1885.' apa: Rossel, J., Mladenov, V., Wördenweber, N., & Somorovsky, J. (2025). Security Implications of Malicious G-Codes in 3D Printing. Proceedings of the 34th USENIX Security Symposium, 1867–1885. bibtex: '@inproceedings{Rossel_Mladenov_Wördenweber_Somorovsky_2025, title={Security Implications of Malicious G-Codes in 3D Printing}, booktitle={Proceedings of the 34th USENIX Security Symposium}, author={Rossel, Jost and Mladenov, Vladislav and Wördenweber, Nico and Somorovsky, Juraj}, year={2025}, pages={1867–1885} }' chicago: Rossel, Jost, Vladislav Mladenov, Nico Wördenweber, and Juraj Somorovsky. “Security Implications of Malicious G-Codes in 3D Printing.” In Proceedings of the 34th USENIX Security Symposium, 1867–85, 2025. ieee: J. Rossel, V. Mladenov, N. Wördenweber, and J. Somorovsky, “Security Implications of Malicious G-Codes in 3D Printing,” in Proceedings of the 34th USENIX Security Symposium, Seattle, WA, USA, 2025, pp. 1867–1885. mla: Rossel, Jost, et al. “Security Implications of Malicious G-Codes in 3D Printing.” Proceedings of the 34th USENIX Security Symposium, 2025, pp. 1867–85. short: 'J. Rossel, V. Mladenov, N. Wördenweber, J. Somorovsky, in: Proceedings of the 34th USENIX Security Symposium, 2025, pp. 1867–1885.' conference: end_date: 2025-08-15 location: Seattle, WA, USA name: 34th USENIX Security Symposium start_date: 2025-08-13 date_created: 2025-02-17T11:12:17Z date_updated: 2025-08-22T10:34:24Z ddc: - '000' department: - _id: '632' file: - access_level: open_access content_type: application/pdf creator: jrossel date_created: 2025-02-17T11:10:31Z date_updated: 2025-02-17T11:13:10Z file_id: '58660' file_name: Security_Analysis_of_G_Codes.pdf file_size: 1562838 relation: main_file file_date_updated: 2025-02-17T11:13:10Z has_accepted_license: '1' language: - iso: eng main_file_link: - open_access: '1' url: https://www.usenix.org/conference/usenixsecurity25/presentation/rossel oa: '1' page: 1867 - 1885 publication: Proceedings of the 34th USENIX Security Symposium publication_status: published quality_controlled: '1' status: public title: Security Implications of Malicious G-Codes in 3D Printing type: conference user_id: '58331' year: '2025' ... --- _id: '61014' abstract: - lang: eng text: 'To obtain a more comprehensive understanding of the specific properties of complex-shaped technical aerosols—such as partially sintered aggregates formed in combustion processes or structured particles resulting from complex synthesis processes—it is essential to measure more than a single equivalent size. This study examines a novel method for determining a two-dimensional distribution of two distinct particle properties within the size range from 50nm to 1000nm: the Centrifugal Differential Mobility Analyzer (CDMA). The CDMA enables the simultaneous measurement of both mobility and Stokes equivalent diameters, providing a detailed two-dimensional particle property distribution. This, in turn, allows for the extraction of shape-related information, which is essential for characterizing particles in terms of their chemical composition, reactivity, and other physicochemical properties. This paper presents a detailed evaluation of a first CDMA prototype. First, CFD simulations of the flow field within the classifier are presented in order to assess and understand non-idealities arising from the exact geometry. Subsequently, the transfer function is evaluated by particle trajectory calculations based on the simulated flow field. It can be demonstrated that the simulated transfer functions agree quite well with transfer functions derived from streamlines of an ideal flow field, indicating that the non-idealities in the classifying region are almost negligible in their effect on the classification result. An experimental determination of the transfer function shows additional effects not covered by the previous simulations, like broadening by diffusion and losses due to diffusion and precipitation within the in- and outlet of the classifier. Finally, the determined transfer functions are used to determine the full two-dimensional distribution with regard to the mobility and Stokes equivalent diameter of real aerosols, like spherical particles and aggregates at different sintering stages, respectively.' article_number: '11' article_type: original author: - first_name: Torben Norbert full_name: Rüther, Torben Norbert last_name: Rüther - first_name: Sebastian full_name: Gröne, Sebastian last_name: Gröne - first_name: Christopher full_name: Dechert, Christopher last_name: Dechert - first_name: Hans-Joachim full_name: Schmid, Hans-Joachim id: '464' last_name: Schmid orcid: 000-0001-8590-1921 citation: ama: Rüther TN, Gröne S, Dechert C, Schmid H-J. Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements. Powders. 2025;4(2). doi:10.3390/powders4020011 apa: Rüther, T. N., Gröne, S., Dechert, C., & Schmid, H.-J. (2025). Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements. Powders, 4(2), Article 11. https://doi.org/10.3390/powders4020011 bibtex: '@article{Rüther_Gröne_Dechert_Schmid_2025, title={Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements}, volume={4}, DOI={10.3390/powders4020011}, number={211}, journal={Powders}, publisher={MDPI AG}, author={Rüther, Torben Norbert and Gröne, Sebastian and Dechert, Christopher and Schmid, Hans-Joachim}, year={2025} }' chicago: Rüther, Torben Norbert, Sebastian Gröne, Christopher Dechert, and Hans-Joachim Schmid. “Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements.” Powders 4, no. 2 (2025). https://doi.org/10.3390/powders4020011. ieee: 'T. N. Rüther, S. Gröne, C. Dechert, and H.-J. Schmid, “Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements,” Powders, vol. 4, no. 2, Art. no. 11, 2025, doi: 10.3390/powders4020011.' mla: Rüther, Torben Norbert, et al. “Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements.” Powders, vol. 4, no. 2, 11, MDPI AG, 2025, doi:10.3390/powders4020011. short: T.N. Rüther, S. Gröne, C. Dechert, H.-J. Schmid, Powders 4 (2025). date_created: 2025-08-25T16:10:45Z date_updated: 2025-08-25T16:15:41Z doi: 10.3390/powders4020011 funded_apc: '1' intvolume: ' 4' issue: '2' keyword: - centrifugal differential mobility analysis - 2D-measurement - particle characterization - moving reference frame CFD-simulation - transfer function language: - iso: eng publication: Powders publication_identifier: issn: - 2674-0516 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Centrifugal Differential Mobility Analysis—Validation and First Two-Dimensional Measurements type: journal_article user_id: '464' volume: 4 year: '2025' ... --- _id: '61060' abstract: - lang: eng text: "In early operational phases of severe weather events, a lack of\r\ninformation challenges emergency management teams to gain\r\nan overview of the situation and make informed decisions. To\r\nsupport situational exploration, unmanned aerial and ground\r\nvehicles attract increasing attention, primarily used to\r\ndocument operational sites. However, they offer further\r\npotential in early operational phases. To ensure their reliable\r\nuse for exploration, decision-makers must be aware of\r\nopportunities and limitations under prevailing conditions. For\r\nthis, use cases for robotic simulation in emergency response\r\nare presented, considering technical restrictions and dynamic\r\ninfluences from weather impacts. The approach of integrating\r\nrescue robot simulation into the response phase is developed\r\nfollowing a five-step research design. Existing use cases of\r\nrescue robot simulation are identified in a systematic literature\r\nanalysis. The results are extended with use cases developed for\r\nurban flooding scenarios. Subsequently, use cases are assessed\r\nand selected for implementation in the simulation environment\r\nGazebo. Finally, the results are validated with end users in the\r\nEU research project CREXDATA, which focuses on decision\r\nsupport based on processing extreme data. The implemented\r\nuse cases demonstrate the potential of robotic simulation in\r\nemergency response to accelerate action planning in decisionmaking and provide a more detailed picture, enabling betterinformed decisions. " author: - first_name: Iris full_name: Gräßler, Iris id: '47565' last_name: Gräßler orcid: 0000-0001-5765-971X - first_name: Niklas full_name: Döhner, Niklas id: '108017' last_name: Döhner orcid: https://orcid.org/0009-0005-7676-4036 - first_name: Marcel full_name: Ebel, Marcel id: '81788' last_name: Ebel orcid: https://orcid.org/0009-0007-5400-4436 - first_name: Jens full_name: Pottebaum, Jens id: '405' last_name: Pottebaum orcid: http://orcid.org/0000-0001-8778-2989 citation: ama: 'Gräßler I, Döhner N, Ebel M, Pottebaum J. Shifting boundaries from preparedness to response: Using simulation of rescue robots in weather-induced emergencies. In: Mensch Und Computer 2025 - Workshopband. ; 2025. doi:10.18420/muc2025-mci-ws01-187' apa: 'Gräßler, I., Döhner, N., Ebel, M., & Pottebaum, J. (2025). Shifting boundaries from preparedness to response: Using simulation of rescue robots in weather-induced emergencies. Mensch Und Computer 2025 - Workshopband. Mensch und Computer, Chemnitz. https://doi.org/10.18420/muc2025-mci-ws01-187' bibtex: '@inproceedings{Gräßler_Döhner_Ebel_Pottebaum_2025, title={Shifting boundaries from preparedness to response: Using simulation of rescue robots in weather-induced emergencies}, DOI={10.18420/muc2025-mci-ws01-187}, booktitle={Mensch und Computer 2025 - Workshopband}, author={Gräßler, Iris and Döhner, Niklas and Ebel, Marcel and Pottebaum, Jens}, year={2025} }' chicago: 'Gräßler, Iris, Niklas Döhner, Marcel Ebel, and Jens Pottebaum. “Shifting Boundaries from Preparedness to Response: Using Simulation of Rescue Robots in Weather-Induced Emergencies.” In Mensch Und Computer 2025 - Workshopband, 2025. https://doi.org/10.18420/muc2025-mci-ws01-187.' ieee: 'I. Gräßler, N. Döhner, M. Ebel, and J. Pottebaum, “Shifting boundaries from preparedness to response: Using simulation of rescue robots in weather-induced emergencies,” presented at the Mensch und Computer, Chemnitz, 2025, doi: 10.18420/muc2025-mci-ws01-187.' mla: 'Gräßler, Iris, et al. “Shifting Boundaries from Preparedness to Response: Using Simulation of Rescue Robots in Weather-Induced Emergencies.” Mensch Und Computer 2025 - Workshopband, 2025, doi:10.18420/muc2025-mci-ws01-187.' short: 'I. Gräßler, N. Döhner, M. Ebel, J. Pottebaum, in: Mensch Und Computer 2025 - Workshopband, 2025.' conference: end_date: 2025-09-03 location: Chemnitz name: Mensch und Computer start_date: 2025-08-31 date_created: 2025-08-28T12:58:15Z date_updated: 2025-08-28T13:17:55Z department: - _id: '152' doi: 10.18420/muc2025-mci-ws01-187 has_accepted_license: '1' keyword: - robotic simulation - rescue robots - emergency response - extreme weather language: - iso: eng main_file_link: - open_access: '1' url: https://dl.gi.de/server/api/core/bitstreams/1007ec7d-377f-4e9f-b2a7-e8482b955bf5/content oa: '1' project: - _id: '516' name: 'CREXDATA: Kritische Maßnahmenplanung über extreme Datenmengen' publication: Mensch und Computer 2025 - Workshopband quality_controlled: '1' status: public title: 'Shifting boundaries from preparedness to response: Using simulation of rescue robots in weather-induced emergencies' type: conference user_id: '108017' year: '2025' ... --- _id: '61122' author: - first_name: Volker full_name: Peckhaus, Volker id: '391' last_name: Peckhaus citation: ama: 'Peckhaus V. Bolzano, Bernard, Miscellanea mathematica 22, hg. v. Jan Berg, besorgt von Edgar Morscher und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2). zbMATH Open, Zbl 07963874. Published online 2025.' apa: 'Peckhaus, V. (2025). Bolzano, Bernard, Miscellanea mathematica 22, hg. v. Jan Berg, besorgt von Edgar Morscher und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2). In zbMATH Open, Zbl. 07963874.' bibtex: '@article{Peckhaus_2025, title={Bolzano, Bernard, Miscellanea mathematica 22, hg. v. Jan Berg, besorgt von Edgar Morscher und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2)}, journal={zbMATH Open, Zbl. 07963874}, author={Peckhaus, Volker}, year={2025} }' chicago: 'Peckhaus, Volker. “Bolzano, Bernard, Miscellanea Mathematica 22, Hg. v. Jan Berg, Besorgt von Edgar Morscher Und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2).” ZbMATH Open, Zbl. 07963874, 2025.' ieee: 'V. Peckhaus, “Bolzano, Bernard, Miscellanea mathematica 22, hg. v. Jan Berg, besorgt von Edgar Morscher und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2),” zbMATH Open, Zbl. 07963874. 2025.' mla: 'Peckhaus, Volker. “Bolzano, Bernard, Miscellanea Mathematica 22, Hg. v. Jan Berg, Besorgt von Edgar Morscher Und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2).” ZbMATH Open, Zbl. 07963874, 2025.' short: V. Peckhaus, ZbMATH Open, Zbl. 07963874 (2025). date_created: 2025-09-03T14:06:58Z date_updated: 2025-09-03T14:10:24Z language: - iso: eng main_file_link: - open_access: '1' url: https://zbmath.org/7963874 oa: '1' publication: zbMATH Open, Zbl. 07963874 status: public title: 'Bolzano, Bernard, Miscellanea mathematica 22, hg. v. Jan Berg, besorgt von Edgar Morscher und Otto Neumaier, Frommann-Holzboog: Stuttgart-Bad Cannstatt 2024 (Bernard Bolzano-Gesamtausgabe; II.B.12.2)' type: review user_id: '391' year: '2025' ... --- _id: '61174' abstract: - lang: eng text: Abstract. Mechanical joining methods, such as clinching, are characterised by locally large plastic deformations of the sheet metal to be joined. The majority of the thereby inserted work is transformed into heat. The heat generation and temperature evolution are systematically studied herein by means of thermomechanical process simulations for joining the dual-phase steel HCT590X and the aluminium alloy EN-AW 6014. The thermal-induced softening of the material is incorporated by a suitable coupled thermoplastic constitutive model. It is observed how the tools significantly and importantly contribute to the heat exchange. They reduce peak temperature increases of 225 K (without heat transfer to tools) to less than 90 K for realistic behaviour of contact heat transfer. Overall, increases in temperature during clinch joining can be expected to remain below 90 K for steel-steel joints and around 50 K for aluminium-aluminium joints. author: - first_name: J. full_name: Friedlein, J. last_name: Friedlein - first_name: P. full_name: Steinmann, P. last_name: Steinmann - first_name: J. full_name: Mergheim, J. last_name: Mergheim citation: ama: 'Friedlein J, Steinmann P, Mergheim J. Influence of thermal effects on clinch joining of sheet metal. In: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-22' apa: Friedlein, J., Steinmann, P., & Mergheim, J. (2025). Influence of thermal effects on clinch joining of sheet metal. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-22 bibtex: '@inproceedings{Friedlein_Steinmann_Mergheim_2025, title={Influence of thermal effects on clinch joining of sheet metal}, volume={52}, DOI={10.21741/9781644903551-22}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Friedlein, J. and Steinmann, P. and Mergheim, J.}, year={2025} }' chicago: Friedlein, J., P. Steinmann, and J. Mergheim. “Influence of Thermal Effects on Clinch Joining of Sheet Metal.” In Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-22. ieee: 'J. Friedlein, P. Steinmann, and J. Mergheim, “Influence of thermal effects on clinch joining of sheet metal,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-22.' mla: Friedlein, J., et al. “Influence of Thermal Effects on Clinch Joining of Sheet Metal.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-22. short: 'J. Friedlein, P. Steinmann, J. Mergheim, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.' date_created: 2025-09-10T14:33:50Z date_updated: 2025-09-10T14:37:40Z doi: 10.21741/9781644903551-22 intvolume: ' 52' language: - iso: eng project: - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '131' name: TRR 285 - Project Area A - _id: '139' name: TRR 285 - Subproject A05 publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC status: public title: Influence of thermal effects on clinch joining of sheet metal type: conference user_id: '84990' volume: 52 year: '2025' ... --- _id: '65011' abstract: - lang: eng text: "Abstract\r\n Design of single screw machines for polymer processing often focuses on the melt dominated areas of the screw. However, solids conveying is a key aspect for processes with high screw speeds, grooved feed sections, small screw diameters and material with low bulk density. In injection moulding, throughput limitations are highly relevant in packaging applications as due to low cooling times, plasticizing affects the cycle time. In addition, insufficient solids conveying is a primary cause for air residues in the melt and final product. Therefore, well-designed feed sections are required, especially as direct processing of regrind in recycling applications becomes more relevant due to governmental restrictions. Existing models for injection moulding are based on analytical equations and do not allow to assess new feed sections and feed opening designs, adapted to high screw speeds or regrind. In this paper, numerical simulations based on the Discrete Element Method (DEM), previously used in the field of extrusion, are carried out. In order to replicate the cyclic, superimposed rotation and translation of the screw, a coupled approach of DEM and Multibody Systems Simulation (MBS) is pursued. To verify the accuracy of such coupled simulations, a special test setup is added to a conventional injection moulding machine. Pure solids conveying is investigated, as DEM does not accommodate for large plastic deformations or melting. Different screw and intake designs as well as smooth and grooved barrels are investigated. Selected resins, pellet shapes and regrind are processed, varying the processing parameters and comparing the results to the simulation. The coupled approach replicates reality well in terms of throughput, confirming that DEM can be utilised to further investigate process phenomena and develop calculation models for solids conveying in injection moulding." author: - first_name: Jan full_name: Landgräber, Jan id: '64499' last_name: Landgräber - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner - first_name: Florian full_name: Brüning, Florian id: '72920' last_name: Brüning citation: ama: Landgräber J, Schöppner V, Brüning F. Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS). International Polymer Processing. 2025;41(1):1-14. doi:10.1515/ipp-2025-0065 apa: Landgräber, J., Schöppner, V., & Brüning, F. (2025). Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS). International Polymer Processing, 41(1), 1–14. https://doi.org/10.1515/ipp-2025-0065 bibtex: '@article{Landgräber_Schöppner_Brüning_2025, title={Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS)}, volume={41}, DOI={10.1515/ipp-2025-0065}, number={1}, journal={International Polymer Processing}, publisher={Walter de Gruyter GmbH}, author={Landgräber, Jan and Schöppner, Volker and Brüning, Florian}, year={2025}, pages={1–14} }' chicago: 'Landgräber, Jan, Volker Schöppner, and Florian Brüning. “Assessing Solids Conveying in Injection Moulding Machines Using Coupled Numerical Simulations Based on the Discrete Element Method (DEM) and Multibody Systems (MBS).” International Polymer Processing 41, no. 1 (2025): 1–14. https://doi.org/10.1515/ipp-2025-0065.' ieee: 'J. Landgräber, V. Schöppner, and F. Brüning, “Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS),” International Polymer Processing, vol. 41, no. 1, pp. 1–14, 2025, doi: 10.1515/ipp-2025-0065.' mla: Landgräber, Jan, et al. “Assessing Solids Conveying in Injection Moulding Machines Using Coupled Numerical Simulations Based on the Discrete Element Method (DEM) and Multibody Systems (MBS).” International Polymer Processing, vol. 41, no. 1, Walter de Gruyter GmbH, 2025, pp. 1–14, doi:10.1515/ipp-2025-0065. short: J. Landgräber, V. Schöppner, F. Brüning, International Polymer Processing 41 (2025) 1–14. date_created: 2026-03-16T14:34:08Z date_updated: 2026-03-16T14:36:35Z department: - _id: '9' - _id: '321' - _id: '367' doi: 10.1515/ipp-2025-0065 intvolume: ' 41' issue: '1' language: - iso: eng page: 1-14 publication: International Polymer Processing publication_identifier: issn: - 0930-777X - 2195-8602 publication_status: published publisher: Walter de Gruyter GmbH quality_controlled: '1' status: public title: Assessing solids conveying in injection moulding machines using coupled numerical simulations based on the discrete element method (DEM) and multibody systems (MBS) type: journal_article user_id: '59363' volume: 41 year: '2025' ... --- _id: '65007' author: - first_name: Felix full_name: Knaup, Felix id: '45124' last_name: Knaup - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner citation: ama: Knaup F, Schöppner V. Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations. International Polymer Processing. Published online 2025. doi:10.1515/ipp-2025-0072 apa: Knaup, F., & Schöppner, V. (2025). Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations. International Polymer Processing. https://doi.org/10.1515/ipp-2025-0072 bibtex: '@article{Knaup_Schöppner_2025, title={Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations}, DOI={10.1515/ipp-2025-0072}, journal={International Polymer Processing}, author={Knaup, Felix and Schöppner, Volker}, year={2025} }' chicago: Knaup, Felix, and Volker Schöppner. “Improvement of a Numerical Two-Phase Simulation Model for Single-Screw Plasticizing Extruders Based on Experimental Investigations.” International Polymer Processing, 2025. https://doi.org/10.1515/ipp-2025-0072. ieee: 'F. Knaup and V. Schöppner, “Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations,” International Polymer Processing, 2025, doi: 10.1515/ipp-2025-0072.' mla: Knaup, Felix, and Volker Schöppner. “Improvement of a Numerical Two-Phase Simulation Model for Single-Screw Plasticizing Extruders Based on Experimental Investigations.” International Polymer Processing, 2025, doi:10.1515/ipp-2025-0072. short: F. Knaup, V. Schöppner, International Polymer Processing (2025). date_created: 2026-03-16T14:23:34Z date_updated: 2026-03-18T09:17:45Z department: - _id: '9' - _id: '321' - _id: '367' doi: 10.1515/ipp-2025-0072 keyword: - CFD simulation - melting modeling - melting process - polymer extrusion - single-screw extruder language: - iso: eng publication: International Polymer Processing quality_controlled: '1' status: public title: Improvement of a numerical two-phase simulation model for single-screw plasticizing extruders based on experimental investigations type: journal_article user_id: '59363' year: '2025' ... --- _id: '65009' author: - first_name: Leon full_name: Schmidt, Leon id: '63035' last_name: Schmidt - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner - first_name: Florian full_name: Brüning, Florian id: '72920' last_name: Brüning citation: ama: 'Schmidt L, Schöppner V, Brüning F. Findings on pinless screw design for rubber extrusion. In: Gummitekniska Förening S, Swedish N and F rubber associations, eds. RubberCon 2025. ; 2025.' apa: Schmidt, L., Schöppner, V., & Brüning, F. (2025). Findings on pinless screw design for rubber extrusion. In S. Gummitekniska Förening & N. and F. rubber associations Swedish (Eds.), RubberCon 2025. bibtex: '@inproceedings{Schmidt_Schöppner_Brüning_2025, title={Findings on pinless screw design for rubber extrusion}, booktitle={RubberCon 2025}, author={Schmidt, Leon and Schöppner, Volker and Brüning, Florian}, editor={Gummitekniska Förening, Sveriges and Swedish, Norwegian and Finnish rubber associations}, year={2025} }' chicago: Schmidt, Leon, Volker Schöppner, and Florian Brüning. “Findings on Pinless Screw Design for Rubber Extrusion.” In RubberCon 2025, edited by Sveriges Gummitekniska Förening and Norwegian and Finnish rubber associations Swedish, 2025. ieee: L. Schmidt, V. Schöppner, and F. Brüning, “Findings on pinless screw design for rubber extrusion,” in RubberCon 2025, 2025. mla: Schmidt, Leon, et al. “Findings on Pinless Screw Design for Rubber Extrusion.” RubberCon 2025, edited by Sveriges Gummitekniska Förening and Norwegian and Finnish rubber associations Swedish, 2025. short: 'L. Schmidt, V. Schöppner, F. Brüning, in: S. Gummitekniska Förening, N. and F. rubber associations Swedish (Eds.), RubberCon 2025, 2025.' date_created: 2026-03-16T14:23:35Z date_updated: 2026-03-18T09:08:34Z department: - _id: '9' - _id: '321' - _id: '367' editor: - first_name: Sveriges full_name: Gummitekniska Förening, Sveriges last_name: Gummitekniska Förening - first_name: Norwegian and Finnish rubber associations full_name: Swedish, Norwegian and Finnish rubber associations last_name: Swedish keyword: - extrusion - Kautschuk - Simulation language: - iso: eng publication: RubberCon 2025 status: public title: Findings on pinless screw design for rubber extrusion type: conference user_id: '59363' year: '2025' ... --- _id: '65000' author: - first_name: Felix Paul full_name: Hanselle, Felix Paul id: '62320' last_name: Hanselle - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner - first_name: Florian full_name: Brüning, Florian id: '72920' last_name: Brüning citation: ama: Hanselle FP, Schöppner V, Brüning F. Consideration of modeled pressure dependent viscosity data in injection molding simulation. International Polymer Processing. Published online 2025. doi:10.1515/ipp-2025-0074 apa: Hanselle, F. P., Schöppner, V., & Brüning, F. (2025). Consideration of modeled pressure dependent viscosity data in injection molding simulation. International Polymer Processing. https://doi.org/10.1515/ipp-2025-0074 bibtex: '@article{Hanselle_Schöppner_Brüning_2025, title={Consideration of modeled pressure dependent viscosity data in injection molding simulation}, DOI={10.1515/ipp-2025-0074}, journal={International Polymer Processing}, author={Hanselle, Felix Paul and Schöppner, Volker and Brüning, Florian}, year={2025} }' chicago: Hanselle, Felix Paul, Volker Schöppner, and Florian Brüning. “Consideration of Modeled Pressure Dependent Viscosity Data in Injection Molding Simulation.” International Polymer Processing, 2025. https://doi.org/10.1515/ipp-2025-0074. ieee: 'F. P. Hanselle, V. Schöppner, and F. Brüning, “Consideration of modeled pressure dependent viscosity data in injection molding simulation,” International Polymer Processing, 2025, doi: 10.1515/ipp-2025-0074.' mla: Hanselle, Felix Paul, et al. “Consideration of Modeled Pressure Dependent Viscosity Data in Injection Molding Simulation.” International Polymer Processing, 2025, doi:10.1515/ipp-2025-0074. short: F.P. Hanselle, V. Schöppner, F. Brüning, International Polymer Processing (2025). date_created: 2026-03-16T14:23:33Z date_updated: 2026-03-18T09:25:09Z department: - _id: '9' - _id: '321' - _id: '367' doi: 10.1515/ipp-2025-0074 keyword: - Druckabhängigkeit - Rheologie - Simulation - Spritzgießen - Viskosität language: - iso: eng publication: International Polymer Processing quality_controlled: '1' status: public title: Consideration of modeled pressure dependent viscosity data in injection molding simulation type: journal_article user_id: '59363' year: '2025' ... --- _id: '65238' author: - first_name: Hogenrich full_name: Damanik, Hogenrich last_name: Damanik - first_name: Arooj full_name: Fatima, Arooj last_name: Fatima - first_name: Stefan full_name: Turek, Stefan last_name: Turek - first_name: Jonas Dirk Rudolf Helmut full_name: Petzke, Jonas Dirk Rudolf Helmut id: '57512' last_name: Petzke - first_name: Dennis full_name: Kleinschmidt, Dennis id: '40516' last_name: Kleinschmidt - first_name: Florian full_name: Brüning, Florian id: '72920' last_name: Brüning citation: ama: 'Damanik H, Fatima A, Turek S, Petzke JDRH, Kleinschmidt D, Brüning F. Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model. In: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book. ; 2025:266–268.' apa: Damanik, H., Fatima, A., Turek, S., Petzke, J. D. R. H., Kleinschmidt, D., & Brüning, F. (2025). Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model. In International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book (pp. 266–268). bibtex: '@inbook{Damanik_Fatima_Turek_Petzke_Kleinschmidt_Brüning_2025, title={Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model}, booktitle={International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book}, author={Damanik, Hogenrich and Fatima, Arooj and Turek, Stefan and Petzke, Jonas Dirk Rudolf Helmut and Kleinschmidt, Dennis and Brüning, Florian}, year={2025}, pages={266–268} }' chicago: Damanik, Hogenrich, Arooj Fatima, Stefan Turek, Jonas Dirk Rudolf Helmut Petzke, Dennis Kleinschmidt, and Florian Brüning. “Numerical Modeling of the Non-Isothermal Viscoelastic Flow Behavior of Rubber Compounds Based on the PHAN-THİEN-TANNER (PTT) Model.” In International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book, 266–268, 2025. ieee: H. Damanik, A. Fatima, S. Turek, J. D. R. H. Petzke, D. Kleinschmidt, and F. Brüning, “Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model,” in International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book, 2025, pp. 266–268. mla: Damanik, Hogenrich, et al. “Numerical Modeling of the Non-Isothermal Viscoelastic Flow Behavior of Rubber Compounds Based on the PHAN-THİEN-TANNER (PTT) Model.” International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book, 2025, pp. 266–268. short: 'H. Damanik, A. Fatima, S. Turek, J.D.R.H. Petzke, D. Kleinschmidt, F. Brüning, in: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-Abstract Book, 2025, pp. 266–268.' date_created: 2026-03-30T13:58:30Z date_updated: 2026-03-30T14:02:19Z department: - _id: '9' - _id: '321' - _id: '367' keyword: - CFD simulation - Materialmodellierung - Phan-Thien-Tanner - PTT - Simulation language: - iso: eng page: 266–268 publication: International Rubber Conference (IRC) 2025, Bangkok, BITEC; e-abstract book quality_controlled: '1' status: public title: Numerical modeling of the non-isothermal viscoelastic flow behavior of rubber compounds based on the PHAN-THİEN-TANNER (PTT) model type: book_chapter user_id: '59363' year: '2025' ... --- _id: '56482' abstract: - lang: ger text: "Dieser Beitrag untersucht Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien. Mithilfe von Daten einer Immobilien-Kapitalgesellschaft werden die Wirkungen einer Vermögensteuer auf die Cashflows aus der Vermietung von Wohnimmobilien simuliert. Der Detailgrad der Daten ermöglicht dabei Analysen auf Jahres-, Regional- und Baujahresebene. Ein Abgleich mit weiteren Immobiliendaten untermauert die Vergleichbarkeit und Aussagekraft der Analysen. Die Ergebnisse der Simulation zeigen, dass die Einführung einer Vermögensteuer den Cashflow aus dem Mietgeschäft erheblich reduzieren und zu Liquiditätsproblemen führen kann. Im Durchschnitt über alle Beobachtungen\r\nergibt sich bei einem Vermögensteuersatz i.H.v. 2 % ein negativer Cashflow nach Berücksichtigung aller Kosten. Generell bedeutet dies, dass wachstumsorientierte Immobilien durch eine Vermögensteuer liquiditätsmäßig stärker belastet werden als mietrenditeorientierte Immobilien. Insbesondere in Großstädten mit hohen Immobilienwerten, aber verhältnismäßig geringen Mieten, können die Liquiditätseffekte mehr als dreimal so hoch ausfallen wie in ländlichen bzw. industriell-geprägten Regionen, was zu einem relativen Attraktivitätsverlust führen kann. Durch die Entkopplung der Vermögensteuer von den Mieterträgen zeichnet sich eine starke Abhängigkeit der Steuerlast von aktuellen Marktentwicklungen und dem Zinsumfeld ab, was eine zusätzliche Unsicherheit für Investoren darstellt. Diese steuerliche Unsicherheit könnte sich potentiell auf die Investitionsbereitschaft auswirken und sollte daher\r\nin politischen Diskussionen über die Wiedereinführung einer Vermögensteuer berücksichtigt werden." author: - first_name: Ralf full_name: Maiterth, Ralf last_name: Maiterth - first_name: Yuri full_name: Piper, Yuri id: '49955' last_name: Piper - first_name: Caren full_name: Sureth-Sloane, Caren id: '530' last_name: Sureth-Sloane orcid: ' 0000-0002-8183-5901' citation: ama: Maiterth R, Piper Y, Sureth-Sloane C. Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien. Steuer und Wirtschaft. 2025;102(1):67-81. apa: Maiterth, R., Piper, Y., & Sureth-Sloane, C. (2025). Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien. Steuer und Wirtschaft, 102(1), 67–81. bibtex: '@article{Maiterth_Piper_Sureth-Sloane_2025, title={Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien}, volume={102}, number={1}, journal={Steuer und Wirtschaft}, author={Maiterth, Ralf and Piper, Yuri and Sureth-Sloane, Caren}, year={2025}, pages={67–81} }' chicago: 'Maiterth, Ralf, Yuri Piper, and Caren Sureth-Sloane. “Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien.” Steuer und Wirtschaft 102, no. 1 (2025): 67–81.' ieee: R. Maiterth, Y. Piper, and C. Sureth-Sloane, “Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien,” Steuer und Wirtschaft, vol. 102, no. 1, pp. 67–81, 2025. mla: Maiterth, Ralf, et al. “Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien.” Steuer und Wirtschaft, vol. 102, no. 1, 2025, pp. 67–81. short: R. Maiterth, Y. Piper, C. Sureth-Sloane, Steuer und Wirtschaft 102 (2025) 67–81. date_created: 2024-10-10T09:27:31Z date_updated: 2026-04-09T07:35:42Z department: - _id: '187' intvolume: ' 102' issue: '1' language: - iso: ger page: 67 - 81 publication: Steuer und Wirtschaft quality_controlled: '1' status: public title: Liquiditätseffekte einer Vermögensteuer bei Mietwohnimmobilien type: journal_article user_id: '74000' volume: 102 year: '2025' ... --- _id: '64902' abstract: - lang: ger text: 'Diese Dissertation behandelt die Entwicklung, Erprobung und Evaluation einer mobilen Augmented Reality Anwendung (mAR-App) namens PEARL (Paderborner Elektrotechnik AR Laborpraktikum), die als Vorbereitungsmaßnahme für elektrotechnische Laborpraktika konzipiert wird. Ziel ist es, Studierenden eine zeitlich und örtlich flexible Möglichkeit zu bieten, den realitätsnahen Umgang mit Laborgeräten - primär dem Oszilloskop - zu erlernen. Die methodische Grundlage bilden der Makrozyklus von Design-Based Research (DBR) als strukturierender Rahmen und das heuristische Modell des Research Pentagons, das die Durchführung auf Mikroebene bestimmt. In insgesamt vier Research Pentagons werden didaktische, technologische, motivationale und evaluative Komponenten systematisch untersucht und weiterentwickelt. Das erste Pentagon fokussiert die Entwicklung eines didaktisch fundierten Konzepts nach dem Prinzip des Constructive Alignment, das Lernziele, Lernaktivitäten und Prüfungsformen in fünf abgestufte Lernlevel überführt. Diese reichen von der initialen Orientierung bis zur eigenständigen Problemlösung in einem freien Experimentiermodus. Im zweiten Research Pentagon wird die technische Machbarkeit von Augmented - und Virtual Reality (VR) im Laborumfeld anhand mehrerer funktionaler Prototypen evaluiert. Während sich VR aufgrund technischer Einschränkungen als ungeeignet erweist, zeigt AR - insbesondere in der markerlosen Ausführung mittels der Software Development Kits (SDKs) ARCore und ARKit - ein hohes Potenzial für den praktischen Einsatz. Im dritten Pentagon entsteht ein Onboarding-Modul, das auf die erste Version der mobilen App (V0.17.01) aufsetzt und grundlegende Funktionen eines realen Oszilloskops digital abbildet. Dabei werden Nutzer:innen schrittweise an das virtuelle Oszilloskop herangeführt und lernen zugleich die zentralen Funktionen der mAR-App kennen. Die Ergebnisse zeigen eine insgesamt neutrale bis leicht positive Nutzungserfahrung, wobei technische Schwächen (z.B. Reaktionszeit oder Objektverankerung) die Effizienz und Steuerbarkeit beeinträchtigen. Im Exkurs-Kapitel erfolgt eine Eye-Tracking-Studie zur Untersuchung visueller Aufmerksamkeit und individueller Lösungsstrategien von Expert:innen und Noviz:innen bei der Arbeit am realen Oszilloskop. Heatmaps und Zeitverläufe in definierten Areas of Interest (AOI) liefern erste Hinweise auf Unterschiede im Blickverhalten zwischen den Gruppen. Die algorithmischen Scanpfadanalysen der Blickverläufe hingegen zeigen eine geringe Trennschärfe. Das Potenzial von Eye-Tracking als Evaluationsmethode wird daher kritisch reflektiert, aber angesichts technologischer Entwicklungen und verfügbarer Eye-Tracker in Mixed Reality (MR) Brillen weiterhin als zukunftsrelevant eingeordnet. Die abschließende summative Evaluation nutzt ein Prä‑Post-Test-Design mit Kontrollgruppenvergleich mit 70 Teilnehmenden, um die Lernwirksamkeit der überarbeiteten mAR-App mit klassischen Materialien wie Videos und Handbüchern zu vergleichen. In der Interventionsgruppe (IG) zeigen sich auf kognitiver und affektiver Ebene signifikant positive Veränderungen: Die Leistungen steigen deutlich, insbesondere in den Taxonomiestufen Anwendung, Verständnis und Analyse; zugleich nehmen experimentelles Selbstkonzept und experimentelles Sachinteresse zu, während Überforderung und Ängstlichkeit im Hinblick auf die Laborpraktika abnehmen. Als Einschränkung zeigt sich, dass die mAR-App keinen klaren Vorsprung gegenüber der Kontrollgruppe (KG) erreicht, was sowohl auf die sehr gut ausgearbeiteten Materialien und Videos der KG als auch auf technische Begrenzungen der mobilen Umsetzung zurückzuführen ist: Kleine Displays, 2D-Oberflächen für 3D-Geräte und unpräzise Touch-Interaktionen erschweren komplexe, feinmotorische Aufgaben. In den begleitenden User Interface (UI) und User Experience (UX) Fragebögen spiegeln sich diese Limitationen in gemischten Bewertungen der App wider. Die Arbeit verdeutlicht, dass die mobile AR-Anwendung trotz technischer Einschränkungen wertvolle Möglichkeiten für die Vorbereitung auf Laborpraktika und das Kennenlernen von Laborgeräten bieten kann. Der Fokus bei der Entwicklung liegt von Beginn an auf einer modularen und flexiblen App-Architektur, um sie mit neuen Geräten und Aufgaben zu erweitern. Der Hauptnutzen liegt perspektivisch nicht in der mobilen Anwendung selbst, sondern in der strategischen Ausrichtung auf zukunftsfähige, skalierbare Lösungen für MR-Brillen. Diese erlauben eine authentische Gestensteuerung und realitätsnahe Interaktionen.' - lang: eng text: 'This thesis examines the development, testing, and evaluation of a mobile augmented reality application (mAR app), which is designed as a preparation tool for electrical engineering laboratory courses. The aim is to offer students an opportunity to work with laboratory equipment - primarily the oscilloscope - realistically without location and time constraints. The methodological basis is formed by the macrocycle of design-based research (DBR) as a structured framework and the heuristic model of the research pentagon, which specifies the implementation at the micro level. Didactic, technological, motivational, and evaluative components are systematically examined and further developed in a total of four research pentagons. The first pentagon focuses on the development of a didactically sound concept based on the principle of constructive alignment, which incorporates learning objectives, learning activities, and forms of assessment into five graduated learning levels. These range from initial orientation to independent problem-solving in a free experimentation mode. The second phase evaluates the technical feasibility of augmented and virtual reality (VR) in the laboratory environment using several prototypes. While VR turns out to be unsuitable due to technical limitations, AR - especially in the markerless version using the ARCore and ARKit software development kits (SDKs) - shows great potential for everyday use. In the third research pentagon, an onboarding module is created based on the first version of the mobile app (V0.17.01), which digitally maps the basic functions of a real oscilloscope. During this process, users are introduced to the virtual oscilloscope and become familiar with the main functions of the mAR app. The results show an overall neutral to slightly positive user experience, although technical weaknesses (e.g., reaction time and object fixing) negatively impact efficiency and controllability. In the fourth research pentagon, an eye-tracking study is carried out to investigate visual attention and individual solution strategies of expert and novice users when working with real oscilloscopes. Heatmaps and time sequences in defined areas of interest (AOI) provide first indications of differences in gaze behavior between the groups. The algorithmic scan path analysis, on the other hand, reveals a low degree of differentiation. The potential of eye tracking as an evaluation method is therefore critically reflected, but it is still considered to be relevant for future studies in light of technological advancements and the availability of eye trackers in mixed reality (MR) glasses. The final summative evaluation is carried out in the way of a pre-post test design with 70 participants and compares the usage of traditional materials such as videos and manuals with the improved mAR app. In the intervention group (IG), significant improvements emerge on both cognitive and affective levels: performance increases particularly in the areas of application, understanding, and analysis, while experimental self-concept and subject-related interest rise and feelings of overload and anxiety regarding the lab courses decline. As a limitation, the mAR app does not yield a clear advantage over the control group (CG), which can be attributed both to the highly refined materials and videos used in the CG and to technical constraints inherent to the mobile implementation: small displays, 2D interfaces on 3D devices, and imprecise touch interaction limit complex, sensitive motor tasks. These limitations are also reflected in the accompanying user interface (UI) and user experience (UX) questionnaires, which indicate mixed app ratings. Both groups show significant learning gains - particularly in the areas of application, understanding, and analysis. However, a significant advantage of the mAR App cannot be proven. Affective characteristics such as experimental self-concept and general experimental interests increase in both groups, while the feeling of fear before conducting real laboratory work decreases. The app itself achieves average ratings in user interface (UI) and user experience (UX) questionnaires. The thesis demonstrates that, despite technical limitations, the mobile AR application can provide a valuable alternative for preparing students for laboratory courses and familiarizing them with laboratory equipment. From the very beginning, the primary goal during development was a modular and flexible app architecture that can be extended with new devices, tasks, and functions. The main benefit is not in the mobile application itself, but in the strategic direction of future-oriented and scalable solutions for MR glasses, which allow immersive and realistic gesture interactions.' author: - first_name: Mesut full_name: Alptekin, Mesut id: '11763' last_name: Alptekin orcid: 0009-0004-8545-1165 citation: ama: Alptekin M. Entwicklung Einer Augmented Reality Basierten Anwendung Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat University; 2025. doi:10.17619/UNIPB/1-2483 apa: Alptekin, M. (2025). Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat University. https://doi.org/10.17619/UNIPB/1-2483 bibtex: '@book{Alptekin_2025, title={Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik}, DOI={10.17619/UNIPB/1-2483}, publisher={LibreCat University}, author={Alptekin, Mesut}, year={2025} }' chicago: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat University, 2025. https://doi.org/10.17619/UNIPB/1-2483. ieee: M. Alptekin, Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat University, 2025. mla: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat University, 2025, doi:10.17619/UNIPB/1-2483. short: M. Alptekin, Entwicklung Einer Augmented Reality Basierten Anwendung Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik, LibreCat University, 2025. date_created: 2026-03-11T11:05:08Z date_updated: 2026-04-20T07:46:37Z ddc: - '620' department: - _id: '34' - _id: '3' - _id: '300' doi: 10.17619/UNIPB/1-2483 publisher: LibreCat University status: public title: Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik type: research_data user_id: '14972' year: '2025' ... --- _id: '63855' abstract: - lang: ger text: Elektronenenergieverlustspektroskopie (engl. EELS) ist eine fortgeschrittene Analysemethode der Transmissionselektronenmikroskopie, die auf atomarer Ebene Einblicke in Materialcharakteristika wie bspw. Eigenschaften des Elektronensystems oder der Materialzusammensetzung erlaubt. Die Genauigkeit jeder EELS-Analyse ist jedoch fundamental durch Rauschen und Unschärfe begrenzt. Diese Thesis beschreibt solche Rauschphänomene im Detail. Vor allem bei strahlempfindlichen Materialien, die kurze Bestrahlzeiten erfordern, aber auch bei Elektron-Materie-Wechselwirkungen mit geringer Auftrittshäufigkeit, ist eine solche Beschreibung notwendig, da das Rauschen solche Messungen dominiert. Zusätzlich spielen Korrelationen des Rauschens eine Rolle, die durch Faltung des verrauschten Signals mit der Punktspreizfunktion des Detektors entstehen und die sowohl theoretisch als auch experimentell beschrieben werden. Methoden zur Messung der wichtigsten Rauschparameter bei typischen Detektorsystemen werden vorgestellt und erlauben es, das Rauschmodel auf jeden beliebigen EELS-Detektor anzupassen. Eine neue Entfaltungsmethode wird vorgeschlagen, die EELS-Messungen schärft und entrauscht. Die Wirksamkeit dieser Methode wird an Simulations- und Experimentaldaten dargelegt. Hierbei wird gezeigt, dass die neue Methode signifikant bessere Ergebnisse liefert, als bisherige und somit eine Analyse von Messdaten auf einem Level ermöglicht, das die Möglichkeiten der Elektronenmikroskopie deutlich erweitert. - lang: eng text: Electron energy-loss spectroscopy (EELS) is an advanced analytical technique in transmission electron microscopy, as it provides insights into material characteristics, such as electronic properties or elemental composition, at the atomic scale. The precision of every EELS analysis, however, is inherently limited by noises and blur. This thesis offers a comprehensive understanding of the noise, which is particularly valuable at low dwell times necessary for beam sensitive materials and for electron-matter interactions with low frequency of occurrence, where the noise dominates the measurement. Additionally, correlations encountered in the noise of an EELS measurement are described from both a theoretical and experimental perspective. These correlations are caused by a convolution of the noisy signal with the detector point spread function. Methods for characterizing key noise parameters of typical detectors are described, allowing the noise model to be tailored to any EELS detector. Ultimately, a novel deconvolution method enabling significant sharpening and denoising of EELS measurements is introduced and demonstrated. Its efficiency is further validated on both simulation and experimental data. The described advancement offered by the proposed deconvolution method enables the extension of current electron microscope capabilities, facilitating analysis that would be unfeasible with existing deconvolution techniques. author: - first_name: Christian full_name: Zietlow, Christian id: '77368' last_name: Zietlow orcid: https://orcid.org/0000-0001-9696-619X citation: ama: Zietlow C. A Novel Lagrangian-Based Method for the Deconvolution of Electron Energy-Loss Spectra. Universitätsbibliothek Paderborn; 2025. doi:10.17619/UNIPB/1-2438 apa: Zietlow, C. (2025). A novel Lagrangian-based method for the deconvolution of electron energy-loss spectra. Universitätsbibliothek Paderborn. https://doi.org/10.17619/UNIPB/1-2438 bibtex: '@book{Zietlow_2025, title={A novel Lagrangian-based method for the deconvolution of electron energy-loss spectra}, DOI={10.17619/UNIPB/1-2438}, publisher={Universitätsbibliothek Paderborn}, author={Zietlow, Christian}, year={2025} }' chicago: Zietlow, Christian. A Novel Lagrangian-Based Method for the Deconvolution of Electron Energy-Loss Spectra. Universitätsbibliothek Paderborn, 2025. https://doi.org/10.17619/UNIPB/1-2438. ieee: C. Zietlow, A novel Lagrangian-based method for the deconvolution of electron energy-loss spectra. Universitätsbibliothek Paderborn, 2025. mla: Zietlow, Christian. A Novel Lagrangian-Based Method for the Deconvolution of Electron Energy-Loss Spectra. Universitätsbibliothek Paderborn, 2025, doi:10.17619/UNIPB/1-2438. short: C. Zietlow, A Novel Lagrangian-Based Method for the Deconvolution of Electron Energy-Loss Spectra, Universitätsbibliothek Paderborn, 2025. date_created: 2026-02-04T06:54:14Z date_updated: 2026-04-20T07:42:57Z department: - _id: '15' doi: 10.17619/UNIPB/1-2438 publisher: Universitätsbibliothek Paderborn status: public title: A novel Lagrangian-based method for the deconvolution of electron energy-loss spectra type: research_data user_id: '14972' year: '2025' ... --- _id: '59088' abstract: - lang: eng text: "This paper deals with the implementation and results of the application of a multi-stage traffic light control system which includes a simulation-based traffic estimation and model predictive control.\r\nThe traffic light control system incorporates a fuzzy system for traffic light phase preselection, followed by a model predictive control to optimise phase combinations and switching times. Predefined phases are selected without restrictions in the order according to a multi-objective optimisation to adapt to the traffic as freely as possible. Initially, the system is tested in simulations and compared with existing methods and analysed afterwards for its effectiveness in a prototype commissioning in field tests. Results indicate high potentials for reducing emissions and waiting times, highlighting the system's value. However, further refinement is necessary for standard implementation. This comprehensive approach demonstrates advancements in traffic management technology, showcasing the potential for enhancing urban mobility and reducing environmental impact." author: - first_name: Kevin full_name: Malena, Kevin id: '36303' last_name: Malena orcid: 0000-0003-1183-4679 - first_name: Christopher full_name: Link, Christopher id: '38249' last_name: Link - first_name: Sandra full_name: Gausemeier, Sandra id: '17793' last_name: Gausemeier - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: 'Malena K, Link C, Gausemeier S, Trächtler A. Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System. In: 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC). Vol 27. IEEE; 2025. doi:10.1109/itsc58415.2024.10919569' apa: Malena, K., Link, C., Gausemeier, S., & Trächtler, A. (2025). Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System. 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC), 27. https://doi.org/10.1109/itsc58415.2024.10919569 bibtex: '@inproceedings{Malena_Link_Gausemeier_Trächtler_2025, title={Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System}, volume={27}, DOI={10.1109/itsc58415.2024.10919569}, booktitle={2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC)}, publisher={IEEE}, author={Malena, Kevin and Link, Christopher and Gausemeier, Sandra and Trächtler, Ansgar}, year={2025} }' chicago: Malena, Kevin, Christopher Link, Sandra Gausemeier, and Ansgar Trächtler. “Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System.” In 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC), Vol. 27. IEEE, 2025. https://doi.org/10.1109/itsc58415.2024.10919569. ieee: 'K. Malena, C. Link, S. Gausemeier, and A. Trächtler, “Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System,” in 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC), Edmonton (Canada), 2025, vol. 27, doi: 10.1109/itsc58415.2024.10919569.' mla: Malena, Kevin, et al. “Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System.” 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC), vol. 27, IEEE, 2025, doi:10.1109/itsc58415.2024.10919569. short: 'K. Malena, C. Link, S. Gausemeier, A. Trächtler, in: 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC), IEEE, 2025.' conference: end_date: 2024-09-27 location: Edmonton (Canada) name: 27th International Conference on Intelligent Transportation Systems (ITSC) start_date: 2024-09-24 date_created: 2025-03-24T08:57:08Z date_updated: 2026-04-29T08:49:46Z department: - _id: '153' doi: 10.1109/itsc58415.2024.10919569 intvolume: ' 27' keyword: - MPC language: - iso: eng publication: 2024 IEEE 27th International Conference on Intelligent Transportation Systems (ITSC) publication_identifier: issn: - 2153-0017 publication_status: published publisher: IEEE quality_controlled: '1' related_material: link: - relation: confirmation url: https://ieeexplore.ieee.org/document/10919569 status: public title: Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control System type: conference user_id: '36303' volume: 27 year: '2025' ... --- _id: '63662' abstract: - lang: eng text: The accurate prediction of crack initiation and propagation is essential for assessing the structural integrity of mechanically joined components and other complex assemblies. To overcome the limitations of existing finite element tools, a modular Python framework has been developed to automate three-dimensional crack growth simulations. The program combines geometric reconstruction, adaptive remeshing, and the numerical evaluation of fracture mechanics parameters within a single, fully automated workflow. The framework builds on open-source components and remains solver-independent, enabling straightforward integration with commercial or research finite element codes. A dedicated sequence of modules performs all required steps, from mesh separation and crack insertion to local submodeling, stress and displacement mapping, and iterative crack-front update, without manual interaction. The methodology was verified using a mini-compact tension (Mini-CT) specimen as a benchmark case. The numerical results demonstrate the accurate reproduction of stress intensity factors and energy release rates while achieving high computational efficiency through localized refinement. The developed approach provides a robust basis for crack growth simulations of geometrically complex or residual stress-affected structures. Its high degree of automation and flexibility makes it particularly suited for analyzing cracks in clinched and riveted joints, supporting the predictive design and durability assessment of joined lightweight structures. article_number: '384' author: - first_name: Sven full_name: Krome, Sven id: '57245' last_name: Krome - first_name: Tobias full_name: Duffe, Tobias id: '41322' last_name: Duffe - first_name: Gunter full_name: Kullmer, Gunter id: '291' last_name: Kullmer - first_name: Britta full_name: Schramm, Britta id: '4668' last_name: Schramm - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 citation: ama: Krome S, Duffe T, Kullmer G, Schramm B, Ostwald R. Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. Applied Sciences. 2025;16(1). doi:10.3390/app16010384 apa: Krome, S., Duffe, T., Kullmer, G., Schramm, B., & Ostwald, R. (2025). Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. Applied Sciences, 16(1), Article 384. https://doi.org/10.3390/app16010384 bibtex: '@article{Krome_Duffe_Kullmer_Schramm_Ostwald_2025, title={Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D}, volume={16}, DOI={10.3390/app16010384}, number={1384}, journal={Applied Sciences}, publisher={MDPI AG}, author={Krome, Sven and Duffe, Tobias and Kullmer, Gunter and Schramm, Britta and Ostwald, Richard}, year={2025} }' chicago: Krome, Sven, Tobias Duffe, Gunter Kullmer, Britta Schramm, and Richard Ostwald. “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.” Applied Sciences 16, no. 1 (2025). https://doi.org/10.3390/app16010384. ieee: 'S. Krome, T. Duffe, G. Kullmer, B. Schramm, and R. Ostwald, “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D,” Applied Sciences, vol. 16, no. 1, Art. no. 384, 2025, doi: 10.3390/app16010384.' mla: Krome, Sven, et al. “Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.” Applied Sciences, vol. 16, no. 1, 384, MDPI AG, 2025, doi:10.3390/app16010384. short: S. Krome, T. Duffe, G. Kullmer, B. Schramm, R. Ostwald, Applied Sciences 16 (2025). date_created: 2026-01-20T08:47:40Z date_updated: 2026-05-12T12:46:22Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.3390/app16010384 intvolume: ' 16' issue: '1' language: - iso: eng project: - _id: '132' name: TRR 285 - Project Area B - _id: '143' name: TRR 285 - Subproject B04 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: Applied Sciences publication_identifier: issn: - 2076-3417 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Validation and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D type: journal_article user_id: '7850' volume: 16 year: '2025' ... --- _id: '50272' abstract: - lang: eng text: "Despite the fundamental role the Quantum Satisfiability (QSAT) problem has\r\nplayed in quantum complexity theory, a central question remains open: At which\r\nlocal dimension does the complexity of QSAT transition from \"easy\" to \"hard\"?\r\nHere, we study QSAT with each constraint acting on a $k$-dimensional and\r\n$l$-dimensional qudit pair, denoted $(k,l)$-QSAT. Our first main result shows\r\nthat, surprisingly, QSAT on qubits can remain $\\mathsf{QMA}_1$-hard, in that\r\n$(2,5)$-QSAT is $\\mathsf{QMA}_1$-complete. In contrast, $2$-SAT on qubits is\r\nwell-known to be poly-time solvable [Bravyi, 2006]. Our second main result\r\nproves that $(3,d)$-QSAT on the 1D line with $d\\in O(1)$ is also\r\n$\\mathsf{QMA}_1$-hard. Finally, we initiate the study of 1D $(2,d)$-QSAT by\r\ngiving a frustration-free 1D Hamiltonian with a unique, entangled ground state.\r\n Our first result uses a direct embedding, combining a novel clock\r\nconstruction with the 2D circuit-to-Hamiltonian construction of [Gosset, Nagaj,\r\n2013]. Of note is a new simplified and analytic proof for the latter (as\r\nopposed to a partially numeric proof in [GN13]). This exploits Unitary Labelled\r\nGraphs [Bausch, Cubitt, Ozols, 2017] together with a new \"Nullspace Connection\r\nLemma\", allowing us to break low energy analyses into small patches of\r\nprojectors, and to improve the soundness analysis of [GN13] from\r\n$\\Omega(1/T^6)$ to $\\Omega(1/T^2)$, for $T$ the number of gates. Our second\r\nresult goes via black-box reduction: Given an arbitrary 1D Hamiltonian $H$ on\r\n$d'$-dimensional qudits, we show how to embed it into an effective null-space\r\nof a 1D $(3,d)$-QSAT instance, for $d\\in O(1)$. Our approach may be viewed as a\r\nweaker notion of \"simulation\" (\\`a la [Bravyi, Hastings 2017], [Cubitt,\r\nMontanaro, Piddock 2018]). As far as we are aware, this gives the first\r\n\"black-box simulation\"-based $\\mathsf{QMA}_1$-hardness result, i.e. for\r\nfrustration-free Hamiltonians." author: - first_name: Dorian full_name: Rudolph, Dorian id: '57863' last_name: Rudolph - first_name: Sevag full_name: Gharibian, Sevag id: '71541' last_name: Gharibian orcid: 0000-0002-9992-3379 - first_name: Daniel full_name: Nagaj, Daniel last_name: Nagaj citation: ama: 'Rudolph D, Gharibian S, Nagaj D. Quantum 2-SAT on low dimensional systems is $\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. In: 16th Innovations in Theoretical Computer Science (ITCS). Vol 325. ; 2025:1-24. doi:10.4230/LIPIcs.ITCS.2025.85' apa: Rudolph, D., Gharibian, S., & Nagaj, D. (2025). Quantum 2-SAT on low dimensional systems is $\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation. 16th Innovations in Theoretical Computer Science (ITCS), 325(85), 1–24. https://doi.org/10.4230/LIPIcs.ITCS.2025.85 bibtex: '@inproceedings{Rudolph_Gharibian_Nagaj_2025, title={Quantum 2-SAT on low dimensional systems is $\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation}, volume={325}, DOI={10.4230/LIPIcs.ITCS.2025.85}, number={85}, booktitle={16th Innovations in Theoretical Computer Science (ITCS)}, author={Rudolph, Dorian and Gharibian, Sevag and Nagaj, Daniel}, year={2025}, pages={1–24} }' chicago: Rudolph, Dorian, Sevag Gharibian, and Daniel Nagaj. “Quantum 2-SAT on Low Dimensional Systems Is $\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” In 16th Innovations in Theoretical Computer Science (ITCS), 325:1–24, 2025. https://doi.org/10.4230/LIPIcs.ITCS.2025.85. ieee: 'D. Rudolph, S. Gharibian, and D. Nagaj, “Quantum 2-SAT on low dimensional systems is $\mathsf{QMA}_1$-complete:  Direct embeddings and black-box simulation,” in 16th Innovations in Theoretical Computer Science (ITCS), 2025, vol. 325, no. 85, pp. 1–24, doi: 10.4230/LIPIcs.ITCS.2025.85.' mla: Rudolph, Dorian, et al. “Quantum 2-SAT on Low Dimensional Systems Is $\mathsf{QMA}_1$-Complete:  Direct Embeddings and Black-Box Simulation.” 16th Innovations in Theoretical Computer Science (ITCS), vol. 325, no. 85, 2025, pp. 1–24, doi:10.4230/LIPIcs.ITCS.2025.85. short: 'D. Rudolph, S. Gharibian, D. Nagaj, in: 16th Innovations in Theoretical Computer Science (ITCS), 2025, pp. 1–24.' date_created: 2024-01-07T20:09:13Z date_updated: 2026-05-15T08:38:31Z department: - _id: '7' - _id: '623' doi: 10.4230/LIPIcs.ITCS.2025.85 external_id: arxiv: - '2401.02368' intvolume: ' 325' issue: '85' language: - iso: eng page: 1-24 publication: 16th Innovations in Theoretical Computer Science (ITCS) publication_status: published status: public title: 'Quantum 2-SAT on low dimensional systems is $\mathsf{QMA}_1$-complete: Direct embeddings and black-box simulation' type: conference user_id: '71541' volume: 325 year: '2025' ...