[{"citation":{"apa":"Ghafouri, S., Razavi, K., Salmani, M., Sanaee, A., Botran, T. L., Wang, L., Doyle, J., &#38; Jamshidi, P. (2025). IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency. <i>Companion of the 16th ACM/SPEC International Conference on Performance Engineering</i>. 16th ACM/SPEC International Conference on Performance Engineering. <a href=\"https://doi.org/10.1145/3680256.3721266\">https://doi.org/10.1145/3680256.3721266</a>","short":"S. Ghafouri, K. Razavi, M. Salmani, A. Sanaee, T.L. Botran, L. Wang, J. Doyle, P. Jamshidi, in: Companion of the 16th ACM/SPEC International Conference on Performance Engineering, ACM, 2025.","mla":"Ghafouri, Saeid, et al. “IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency.” <i>Companion of the 16th ACM/SPEC International Conference on Performance Engineering</i>, ACM, 2025, doi:<a href=\"https://doi.org/10.1145/3680256.3721266\">10.1145/3680256.3721266</a>.","bibtex":"@inproceedings{Ghafouri_Razavi_Salmani_Sanaee_Botran_Wang_Doyle_Jamshidi_2025, title={IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency}, DOI={<a href=\"https://doi.org/10.1145/3680256.3721266\">10.1145/3680256.3721266</a>}, booktitle={Companion of the 16th ACM/SPEC International Conference on Performance Engineering}, publisher={ACM}, author={Ghafouri, Saeid and Razavi, Kamran and Salmani, Mehran and Sanaee, Alireza and Botran, Tania Lorido and Wang, Lin and Doyle, Joseph and Jamshidi, Pooyan}, year={2025} }","ama":"Ghafouri S, Razavi K, Salmani M, et al. IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency. In: <i>Companion of the 16th ACM/SPEC International Conference on Performance Engineering</i>. ACM; 2025. doi:<a href=\"https://doi.org/10.1145/3680256.3721266\">10.1145/3680256.3721266</a>","chicago":"Ghafouri, Saeid, Kamran Razavi, Mehran Salmani, Alireza Sanaee, Tania Lorido Botran, Lin Wang, Joseph Doyle, and Pooyan Jamshidi. “IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency.” In <i>Companion of the 16th ACM/SPEC International Conference on Performance Engineering</i>. ACM, 2025. <a href=\"https://doi.org/10.1145/3680256.3721266\">https://doi.org/10.1145/3680256.3721266</a>.","ieee":"S. Ghafouri <i>et al.</i>, “IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency,” presented at the 16th ACM/SPEC International Conference on Performance Engineering, 2025, doi: <a href=\"https://doi.org/10.1145/3680256.3721266\">10.1145/3680256.3721266</a>."},"year":"2025","publication_status":"published","conference":{"name":"16th ACM/SPEC International Conference on Performance Engineering"},"doi":"10.1145/3680256.3721266","title":"IPA: Inference Pipeline Adaptation to Achieve High Accuracy and Cost-Efficiency","date_created":"2025-12-12T08:14:50Z","author":[{"first_name":"Saeid","full_name":"Ghafouri, Saeid","last_name":"Ghafouri"},{"first_name":"Kamran","last_name":"Razavi","full_name":"Razavi, Kamran"},{"first_name":"Mehran","last_name":"Salmani","full_name":"Salmani, Mehran"},{"first_name":"Alireza","last_name":"Sanaee","full_name":"Sanaee, Alireza"},{"first_name":"Tania Lorido","full_name":"Botran, Tania Lorido","last_name":"Botran"},{"first_name":"Lin","orcid":"0000-0001-7181-6128","last_name":"Wang","full_name":"Wang, Lin","id":"102868"},{"first_name":"Joseph","last_name":"Doyle","full_name":"Doyle, Joseph"},{"full_name":"Jamshidi, Pooyan","last_name":"Jamshidi","first_name":"Pooyan"}],"date_updated":"2025-12-12T08:18:15Z","publisher":"ACM","status":"public","type":"conference","publication":"Companion of the 16th ACM/SPEC International Conference on Performance Engineering","language":[{"iso":"eng"}],"user_id":"102868","department":[{"_id":"34"},{"_id":"7"},{"_id":"75"}],"_id":"63058"},{"file":[{"relation":"main_file","success":1,"content_type":"application/pdf","file_id":"63073","file_name":"crystals-15-01053.pdf","access_level":"closed","file_size":20716652,"creator":"paulstei","date_created":"2025-12-12T13:12:33Z","date_updated":"2025-12-12T13:12:33Z"}],"abstract":[{"text":"<jats:p>Titanium alloys are widely employed for biomedical implants due to their high strength, biocompatibility, and corrosion resistance, yet their lack of intrinsic antibacterial activity remains a major limitation. Incorporating copper, an antibacterial and β-stabilising element, offers a promising strategy to enhance implant performance. This study investigates Ti-6Al-7Nb modified with 1–9 wt.% Cu via in situ alloying during metal-based laser powder bed fusion (PBF-LB/M), with the aim of assessing processability, microstructural evolution, and mechanical properties. Highly dense samples (&gt;99.9%) were produced across all Cu levels, though chemical homogeneity strongly depended on processing parameters. Increasing Cu content promoted β-phase stabilisation, Ti2Cu precipitation, and pronounced grain refinement. Hardness and yield strength increased nearly linearly with Cu addition, while ductility decreased sharply at ≥5 wt.% Cu due to intermetallic formation, hot cracking, and brittle fracture. These results illustrate both the opportunities and constraints of rapid alloy screening via PBF-LB/M. Overall, moderate Cu additions of 1–3 wt.% provide the most favourable balance between mechanical performance, manufacturability, and potential antibacterial functionality. These findings provide a clear guideline for the design of Cu-functionalised titanium implants and demonstrate the efficiency of in situ alloy screening for accelerated materials development.</jats:p>","lang":"eng"}],"publication":"Crystals","language":[{"iso":"eng"}],"ddc":["620"],"keyword":["Biomaterial","In Situ Alloying","Titanium","Additive Manufacturing"],"year":"2025","issue":"12","quality_controlled":"1","title":"In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion","date_created":"2025-12-12T13:11:59Z","publisher":"MDPI AG","status":"public","type":"journal_article","file_date_updated":"2025-12-12T13:12:33Z","funded_apc":"1","article_number":"1053","article_type":"original","user_id":"69776","department":[{"_id":"158"},{"_id":"321"}],"_id":"63072","citation":{"chicago":"Steinmeier, Paul, Kay-Peter Hoyer, Nelson Filipe Lopes Dias, Reiner Zielke, Wolfgang Tillmann, and Mirko Schaper. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i> 15, no. 12 (2025). <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>.","ieee":"P. Steinmeier, K.-P. Hoyer, N. F. Lopes Dias, R. Zielke, W. Tillmann, and M. Schaper, “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion,” <i>Crystals</i>, vol. 15, no. 12, Art. no. 1053, 2025, doi: <a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","ama":"Steinmeier P, Hoyer K-P, Lopes Dias NF, Zielke R, Tillmann W, Schaper M. In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>. 2025;15(12). doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>","apa":"Steinmeier, P., Hoyer, K.-P., Lopes Dias, N. F., Zielke, R., Tillmann, W., &#38; Schaper, M. (2025). In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion. <i>Crystals</i>, <i>15</i>(12), Article 1053. <a href=\"https://doi.org/10.3390/cryst15121053\">https://doi.org/10.3390/cryst15121053</a>","bibtex":"@article{Steinmeier_Hoyer_Lopes Dias_Zielke_Tillmann_Schaper_2025, title={In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion}, volume={15}, DOI={<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>}, number={121053}, journal={Crystals}, publisher={MDPI AG}, author={Steinmeier, Paul and Hoyer, Kay-Peter and Lopes Dias, Nelson Filipe and Zielke, Reiner and Tillmann, Wolfgang and Schaper, Mirko}, year={2025} }","mla":"Steinmeier, Paul, et al. “In Situ Alloying of Ti-6Al-7Nb with Copper Using Laser Powder Bed Fusion.” <i>Crystals</i>, vol. 15, no. 12, 1053, MDPI AG, 2025, doi:<a href=\"https://doi.org/10.3390/cryst15121053\">10.3390/cryst15121053</a>.","short":"P. Steinmeier, K.-P. Hoyer, N.F. Lopes Dias, R. Zielke, W. Tillmann, M. Schaper, Crystals 15 (2025)."},"intvolume":"        15","publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["2073-4352"]},"main_file_link":[{"open_access":"1","url":"https://doi.org/10.3390/cryst15121053"}],"doi":"10.3390/cryst15121053","author":[{"last_name":"Steinmeier","full_name":"Steinmeier, Paul","first_name":"Paul"},{"first_name":"Kay-Peter","last_name":"Hoyer","full_name":"Hoyer, Kay-Peter"},{"first_name":"Nelson Filipe","last_name":"Lopes Dias","full_name":"Lopes Dias, Nelson Filipe"},{"first_name":"Reiner","full_name":"Zielke, Reiner","last_name":"Zielke"},{"last_name":"Tillmann","full_name":"Tillmann, Wolfgang","first_name":"Wolfgang"},{"last_name":"Schaper","full_name":"Schaper, Mirko","first_name":"Mirko"}],"volume":15,"oa":"1","date_updated":"2025-12-12T14:02:13Z"},{"language":[{"iso":"eng"}],"department":[{"_id":"153"}],"user_id":"69890","_id":"61427","project":[{"name":"Nachhaltigkeitsoptimiertes Life Cycle Assessment technologisch hochkomplexer Produkte am Beispiel Automobilbeleuchtung","_id":"693"}],"status":"public","abstract":[{"lang":"eng","text":"The carbon footprint of modern vehicles and their mechatronic systems is more\r\nimportant than ever. Research by the publicly funded Nalyses project and the HELLA\r\ncompany shows that the headlamps use phase makes a significant contribution to the life\r\ncycle footprint taking into account the current electricity mix [1]. Today, functionalities\r\nsuch as adaptive curve light or glare-free high beam ensure comfort and safety by\r\nassessing the state of the vehicle and evaluating the driving scenario ahead. In future,\r\nthis evaluation will be expanded and used to adapt the headlamp to the driving scenario\r\nin such a way that as little light as possible is emitted, but as much light as necessary. In\r\norder to achieve this goal, an overall evaluation of the regulatory compliant energy\r\nsaving potential is crucial in a first step and leads to constraints for a dynamic adaption\r\nwhile driving. In this paper, the potential is illustrated by evaluating UNECE Regulation\r\nNo. 149 and optimizing luminous intensity distributions. Depending on the different\r\nresolutions of matrix LED headlamps, this approach can result in a significantly lower\r\nluminous flux. On the other hand, the results are point-like distributions that raise the\r\nquestion of whether the regulation still provides for sensible minimum requirements for\r\nmodern matrix LED headlamps. The results are further presented in a simulated virtual\r\nenvironment with regard to the resulting luminance in different driving scenarios. We\r\nthen present an approach to integrate regulatory requirements into a control algorithm by\r\nsetting optimization constraints and saturating the control. Finally, we classify the found\r\nluminous intensity distributions qualitatively according to common lighting criteria. In summary, although the investigated minimum distributions are by no means desirable\r\nfor drivers themselves, they form the basis on which energy-saving distributions for\r\nilluminated areas and twilight scenarios could be adaptively controlled in the future."}],"publication":"Proceedings of the 16th International Symposium on Automotive Lighting 2025","type":"conference","doi":"10.26083/tuprints-00030840","conference":{"location":"Darmstadt","end_date":"2025-09-24","start_date":"2025-09-22","name":"16th International Symposium on Automotive Lighting"},"main_file_link":[{"url":"https://tuprints.ulb.tu-darmstadt.de/30825/","open_access":"1"}],"title":"Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps","author":[{"id":"69890","full_name":"Fittkau, Niklas","orcid":"0009-0007-1281-4465","last_name":"Fittkau","first_name":"Niklas"},{"full_name":"Bußemas, Leon","id":"51118","last_name":"Bußemas","first_name":"Leon"},{"id":"36303","full_name":"Malena, Kevin","orcid":"0000-0003-1183-4679","last_name":"Malena","first_name":"Kevin"},{"id":"17793","full_name":"Gausemeier, Sandra","last_name":"Gausemeier","first_name":"Sandra"},{"last_name":"Trächtler","id":"552","full_name":"Trächtler, Ansgar","first_name":"Ansgar"}],"date_created":"2025-09-24T08:56:38Z","date_updated":"2025-12-12T12:47:58Z","oa":"1","citation":{"ama":"Fittkau N, Bußemas L, Malena K, Gausemeier S, Trächtler A. Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps. In: <i>Proceedings of the 16th International Symposium on Automotive Lighting 2025</i>. ; 2025. doi:<a href=\"https://doi.org/10.26083/tuprints-00030840\">10.26083/tuprints-00030840</a>","chicago":"Fittkau, Niklas, Leon Bußemas, Kevin Malena, Sandra Gausemeier, and Ansgar Trächtler. “Regulatory-Compliant Energy-Saving Potential for the Passing Beam of Matrix LED Headlamps.” In <i>Proceedings of the 16th International Symposium on Automotive Lighting 2025</i>. Darmstadt, 2025. <a href=\"https://doi.org/10.26083/tuprints-00030840\">https://doi.org/10.26083/tuprints-00030840</a>.","ieee":"N. Fittkau, L. Bußemas, K. Malena, S. Gausemeier, and A. Trächtler, “Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps,” presented at the 16th International Symposium on Automotive Lighting, Darmstadt, 2025, doi: <a href=\"https://doi.org/10.26083/tuprints-00030840\">10.26083/tuprints-00030840</a>.","apa":"Fittkau, N., Bußemas, L., Malena, K., Gausemeier, S., &#38; Trächtler, A. (2025). Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps. <i>Proceedings of the 16th International Symposium on Automotive Lighting 2025</i>. 16th International Symposium on Automotive Lighting, Darmstadt. <a href=\"https://doi.org/10.26083/tuprints-00030840\">https://doi.org/10.26083/tuprints-00030840</a>","short":"N. Fittkau, L. Bußemas, K. Malena, S. Gausemeier, A. Trächtler, in: Proceedings of the 16th International Symposium on Automotive Lighting 2025, Darmstadt, 2025.","mla":"Fittkau, Niklas, et al. “Regulatory-Compliant Energy-Saving Potential for the Passing Beam of Matrix LED Headlamps.” <i>Proceedings of the 16th International Symposium on Automotive Lighting 2025</i>, 2025, doi:<a href=\"https://doi.org/10.26083/tuprints-00030840\">10.26083/tuprints-00030840</a>.","bibtex":"@inproceedings{Fittkau_Bußemas_Malena_Gausemeier_Trächtler_2025, place={Darmstadt}, title={Regulatory-compliant energy-saving potential for the passing beam of matrix LED headlamps}, DOI={<a href=\"https://doi.org/10.26083/tuprints-00030840\">10.26083/tuprints-00030840</a>}, booktitle={Proceedings of the 16th International Symposium on Automotive Lighting 2025}, author={Fittkau, Niklas and Bußemas, Leon and Malena, Kevin and Gausemeier, Sandra and Trächtler, Ansgar}, year={2025} }"},"year":"2025","place":"Darmstadt"},{"publication":"Konfliktdynamik","type":"journal_article","abstract":[{"text":"Dieser Beitrag fokussiert zum einen die Differenzierung unterschiedlicher Adressat:innen von Feindlichkeit und damit die Frage, inwiefern feindliche Einstellungen gegenüber der Religion des Islams und gegenüber muslimischen Menschen identisch sind. Zum anderen sensibilisiert dieser Beitrag für die unterschiedlichen Ebenen, auf denen Islam-/ Muslim:innenfeindlichkeit als individuelle Einstellungen und antimuslimischer Rassismus als Strukturmerkmal verortet sind. Er zeigt die unterschiedlichen Paradigmen der beiden Forschungstraditionen auf, argumentiert aber auch für ein integratives Verständnis der Konzepte, da die individuelle und strukturelle Ebene eng miteinander verwoben sind. Der Beitrag schließt mit einer Diskussion um theoretische, methodologische und insbesondere handlungspraktische Implikationen im Umgang mit Islam-/ Muslim:innenfeindlichkeit und antimuslimischem Rassismus.","lang":"eng"}],"status":"public","_id":"63075","department":[{"_id":"477"}],"user_id":"119325","language":[{"iso":"eng"}],"quality_controlled":"1","issue":"4","year":"2025","page":"279–287","intvolume":"        14","citation":{"chicago":"Diekmann, Isabell. “Islamfeindlichkeit, Muslim:Innenfeindlichkeit Und Antimuslimischer Rassismus: Differenzierende Und Integrative Ansätze Zur Konzeptionalisierung.” <i>Konfliktdynamik</i> 14, no. 4 (2025): 279–287. <a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">https://doi.org/10.5771/2193-0147-2025-4-279</a>.","ieee":"I. Diekmann, “Islamfeindlichkeit, Muslim:innenfeindlichkeit und antimuslimischer Rassismus: Differenzierende und integrative Ansätze zur Konzeptionalisierung,” <i>Konfliktdynamik</i>, vol. 14, no. 4, pp. 279–287, 2025, doi: <a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">10.5771/2193-0147-2025-4-279</a>.","ama":"Diekmann I. Islamfeindlichkeit, Muslim:innenfeindlichkeit und antimuslimischer Rassismus: Differenzierende und integrative Ansätze zur Konzeptionalisierung. <i>Konfliktdynamik</i>. 2025;14(4):279–287. doi:<a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">10.5771/2193-0147-2025-4-279</a>","apa":"Diekmann, I. (2025). Islamfeindlichkeit, Muslim:innenfeindlichkeit und antimuslimischer Rassismus: Differenzierende und integrative Ansätze zur Konzeptionalisierung. <i>Konfliktdynamik</i>, <i>14</i>(4), 279–287. <a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">https://doi.org/10.5771/2193-0147-2025-4-279</a>","bibtex":"@article{Diekmann_2025, title={Islamfeindlichkeit, Muslim:innenfeindlichkeit und antimuslimischer Rassismus: Differenzierende und integrative Ansätze zur Konzeptionalisierung}, volume={14}, DOI={<a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">10.5771/2193-0147-2025-4-279</a>}, number={4}, journal={Konfliktdynamik}, author={Diekmann, Isabell}, year={2025}, pages={279–287} }","short":"I. Diekmann, Konfliktdynamik 14 (2025) 279–287.","mla":"Diekmann, Isabell. “Islamfeindlichkeit, Muslim:Innenfeindlichkeit Und Antimuslimischer Rassismus: Differenzierende Und Integrative Ansätze Zur Konzeptionalisierung.” <i>Konfliktdynamik</i>, vol. 14, no. 4, 2025, pp. 279–287, doi:<a href=\"https://doi.org/10.5771/2193-0147-2025-4-279\">10.5771/2193-0147-2025-4-279</a>."},"date_updated":"2025-12-12T17:05:50Z","volume":14,"author":[{"last_name":"Diekmann","id":"119325","full_name":"Diekmann, Isabell","first_name":"Isabell"}],"date_created":"2025-12-12T17:04:58Z","title":"Islamfeindlichkeit, Muslim:innenfeindlichkeit und antimuslimischer Rassismus: Differenzierende und integrative Ansätze zur Konzeptionalisierung","doi":"10.5771/2193-0147-2025-4-279"},{"language":[{"iso":"eng"}],"user_id":"21863","department":[{"_id":"136"},{"_id":"11"}],"project":[{"name":"INNOVAtive DEmocracy Through Digitalisation","_id":"1397"}],"_id":"61278","status":"public","abstract":[{"text":"This report outlines foundations of digital democracy and digital democracy research. It is\r\nstructured into eight chapters:\r\nChapter 1: Introduction\r\nChapter 2: What is Digital Democracy?\r\nChapter 3: Online Participation\r\nChapter 4: Open Governance\r\nChapter 5: Digital Activism\r\nChapter 6: e-Voting\r\nChapter 7: Global Trends that Influence Digital Democracy\r\nChapter 8: Foreign Interferences in Democracy","lang":"eng"}],"type":"report","doi":"10.5281/zenodo.17079016","title":"INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 ","author":[{"first_name":"Christian","last_name":"Fuchs","orcid":"0000-0003-0589-4579","full_name":"Fuchs, Christian","id":"21863"},{"first_name":"Kevin","last_name":"Friesch","full_name":"Friesch, Kevin"},{"full_name":"Museba, Joel","last_name":"Museba","first_name":"Joel"}],"date_created":"2025-09-15T14:52:43Z","date_updated":"2025-12-12T18:25:44Z","publisher":"INNOVADE","citation":{"mla":"Fuchs, Christian, et al. <i>INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 </i>. INNOVADE, 2025, doi:<a href=\"https://doi.org/10.5281/zenodo.17079016\">10.5281/zenodo.17079016</a>.","short":"C. Fuchs, K. Friesch, J. Museba, INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 , INNOVADE, 2025.","bibtex":"@book{Fuchs_Friesch_Museba_2025, title={INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 }, DOI={<a href=\"https://doi.org/10.5281/zenodo.17079016\">10.5281/zenodo.17079016</a>}, publisher={INNOVADE}, author={Fuchs, Christian and Friesch, Kevin and Museba, Joel}, year={2025} }","apa":"Fuchs, C., Friesch, K., &#38; Museba, J. (2025). <i>INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 </i>. INNOVADE. <a href=\"https://doi.org/10.5281/zenodo.17079016\">https://doi.org/10.5281/zenodo.17079016</a>","chicago":"Fuchs, Christian, Kevin Friesch, and Joel Museba. <i>INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 </i>. INNOVADE, 2025. <a href=\"https://doi.org/10.5281/zenodo.17079016\">https://doi.org/10.5281/zenodo.17079016</a>.","ieee":"C. Fuchs, K. Friesch, and J. Museba, <i>INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 </i>. INNOVADE, 2025.","ama":"Fuchs C, Friesch K, Museba J. <i>INNOVADE Interdisciplinary Knowledge Base on Digital Democracy - D2.1 </i>. INNOVADE; 2025. doi:<a href=\"https://doi.org/10.5281/zenodo.17079016\">10.5281/zenodo.17079016</a>"},"page":"320","year":"2025"},{"_id":"62949","project":[{"name":"ComeMINT-Netzwerk. fortbilden durch vernetzen – vernetzen durch fortbilden. Gelingensbedingungen adaptiver MINT-Fortbildungsmodule in Community Networks.","_id":"641"}],"department":[{"_id":"386"}],"user_id":"54823","keyword":["Digital","Digitalisierung","Künstliche Intelligenz","KI","Messsensoren","Fortbildung","Lehrkräfte","Chemie"],"language":[{"iso":"eng"}],"publication":"Digitale Transformation für Schule und Lehrkräfteausbildung gestalten","type":"conference_abstract","status":"public","date_updated":"2025-12-13T23:42:02Z","author":[{"first_name":"Sabine","id":"54823","full_name":"Fechner, Sabine","orcid":"0000-0001-5645-5870","last_name":"Fechner"},{"first_name":"Soraya","full_name":"Cornelius, Soraya","last_name":"Cornelius"},{"last_name":"Pollmeier","full_name":"Pollmeier, Pascal","id":"44191","first_name":"Pascal"},{"first_name":"Karin","last_name":"Siepmann","full_name":"Siepmann, Karin"},{"first_name":"Isabel","full_name":"Rubner, Isabel","last_name":"Rubner"}],"date_created":"2025-12-08T08:59:37Z","title":"Digitalisierungsbezogene Kompetenzen im Chemieunterricht fördern – Ein Kurs für Lehrkräfte","conference":{"name":"Digitale Transformation für Schule und Lehrkräfteausbildung gestalten","location":"Potsdam"},"year":"2025","citation":{"apa":"Fechner, S., Cornelius, S., Pollmeier, P., Siepmann, K., &#38; Rubner, I. (2025). Digitalisierungsbezogene Kompetenzen im Chemieunterricht fördern – Ein Kurs für Lehrkräfte. <i>Digitale Transformation Für Schule Und Lehrkräfteausbildung Gestalten</i>. Digitale Transformation für Schule und Lehrkräfteausbildung gestalten, Potsdam.","bibtex":"@inproceedings{Fechner_Cornelius_Pollmeier_Siepmann_Rubner_2025, title={Digitalisierungsbezogene Kompetenzen im Chemieunterricht fördern – Ein Kurs für Lehrkräfte}, booktitle={Digitale Transformation für Schule und Lehrkräfteausbildung gestalten}, author={Fechner, Sabine and Cornelius, Soraya and Pollmeier, Pascal and Siepmann, Karin and Rubner, Isabel}, year={2025} }","mla":"Fechner, Sabine, et al. “Digitalisierungsbezogene Kompetenzen Im Chemieunterricht Fördern – Ein Kurs Für Lehrkräfte.” <i>Digitale Transformation Für Schule Und Lehrkräfteausbildung Gestalten</i>, 2025.","short":"S. Fechner, S. Cornelius, P. Pollmeier, K. Siepmann, I. Rubner, in: Digitale Transformation Für Schule Und Lehrkräfteausbildung Gestalten, 2025.","ama":"Fechner S, Cornelius S, Pollmeier P, Siepmann K, Rubner I. Digitalisierungsbezogene Kompetenzen im Chemieunterricht fördern – Ein Kurs für Lehrkräfte. In: <i>Digitale Transformation Für Schule Und Lehrkräfteausbildung Gestalten</i>. ; 2025.","ieee":"S. Fechner, S. Cornelius, P. Pollmeier, K. Siepmann, and I. 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Prestridge <i>et al.</i>, “Thematic Working Group 4 - Professional digital competence of teachers: leveraging digital technologies to deepen learning,” in <i>Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (eBook)</i>, M. Phillips and P. Fisser, Eds. 2025.","chicago":"Prestridge, Sarah, Doreen Prasse, Christine Bescherer, Eric Bruillard, Amina Charania, Kerstin Drossel, Sharon Friesen, et al. “Thematic Working Group 4 - Professional Digital Competence of Teachers: Leveraging Digital Technologies to Deepen Learning.” In <i>Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (EBook)</i>, edited by Michael Phillips and Petra Fisser, 2025.","ama":"Prestridge S, Prasse D, Bescherer C, et al. Thematic Working Group 4 - Professional digital competence of teachers: leveraging digital technologies to deepen learning. In: Phillips M, Fisser P, eds. <i>Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (EBook)</i>. ; 2025.","apa":"Prestridge, S., Prasse, D., Bescherer, C., Bruillard, E., Charania, A., Drossel, K., Friesen, S., Ge, X., Jacobsen, M., Kafyulilo, A., Morren, M., Moynihan, D., Nikolova, N., Norris, C., Redmond, P., Siero, N., Slykhuis, D., &#38; Soloway, E. (2025). Thematic Working Group 4 - Professional digital competence of teachers: leveraging digital technologies to deepen learning. In M. Phillips &#38; P. Fisser (Eds.), <i>Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (eBook)</i>.","mla":"Prestridge, Sarah, et al. “Thematic Working Group 4 - Professional Digital Competence of Teachers: Leveraging Digital Technologies to Deepen Learning.” <i>Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (EBook)</i>, edited by Michael Phillips and Petra Fisser, 2025.","short":"S. Prestridge, D. Prasse, C. Bescherer, E. Bruillard, A. Charania, K. Drossel, S. Friesen, X. Ge, M. Jacobsen, A. Kafyulilo, M. Morren, D. Moynihan, N. Nikolova, C. Norris, P. Redmond, N. Siero, D. Slykhuis, E. Soloway, in: M. Phillips, P. Fisser (Eds.), Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (EBook), 2025.","bibtex":"@inbook{Prestridge_Prasse_Bescherer_Bruillard_Charania_Drossel_Friesen_Ge_Jacobsen_Kafyulilo_et al._2025, title={Thematic Working Group 4 - Professional digital competence of teachers: leveraging digital technologies to deepen learning}, booktitle={Designing Education Ecosystems for the Future: The Role of Digital Technologies. Report of EDUsummIT 2025 (eBook)}, author={Prestridge, Sarah and Prasse, Doreen and Bescherer, Christine and Bruillard, Eric and Charania, Amina and Drossel, Kerstin and Friesen, Sharon and Ge, Xun and Jacobsen, Michele and Kafyulilo, Ayoub and et al.}, editor={Phillips, Michael and Fisser, Petra}, year={2025} }"}},{"language":[{"iso":"eng"}],"_id":"63108","user_id":"44391","department":[{"_id":"157"}],"abstract":[{"text":"In the context of decarbonization initiatives, the repairability and recyclability of components have become a major concern in various industrial sectors, particularly for resource-intensive components. The development of innovative bonding and debonding processes that must adhere to the stringent mechanical specifications of the manufacturers and facilitate their efficient disassembly is a major issue faced in the implementation of a sustainable circular economy. Although adhesively bonded joints satisfy the stringent requirements for mechanical performance, they present several challenges during the repair and recycling process. Solvolytically debondable epoxy resin adhesives may be employed to overcome this issue. In this study, we aim to conduct an exploratory feasibility study on the application of such chemical debonding mechanisms within an adhesive bond as well as to systematically analyse and evaluate the suitability of such adhesive systems for various applications. To this end, we employed various thermo-analytical methods and quasi-static tensile tests to characterise the mechanical adhesive and joint properties of two solvolytically debondable adhesive systems. Furthermore, we analysed the debondability of the adhesive joints and evaluated their feasibility in an industrial environment. The results indicate considerable application potential for solvolytically debondable adhesives, along with further development steps currently required.","lang":"eng"}],"status":"public","type":"journal_article","publication":"The Journal of Adhesion","title":"Solvolytically debondable adhesive systems – potentials and challenges for repair and recycling","doi":"10.1080/00218464.2025.2600590","publisher":"Informa UK Limited","date_updated":"2025-12-16T07:53:52Z","author":[{"full_name":"Gilich, Julian","id":"44391","last_name":"Gilich","first_name":"Julian"},{"full_name":"Kroos, Janika","id":"50198","last_name":"Kroos","first_name":"Janika"},{"last_name":"Teutenberg","full_name":"Teutenberg, Dominik","id":"537","first_name":"Dominik"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"date_created":"2025-12-16T07:50:36Z","year":"2025","citation":{"ama":"Gilich J, Kroos J, Teutenberg D, Meschut G. Solvolytically debondable adhesive systems – potentials and challenges for repair and recycling. <i>The Journal of Adhesion</i>. Published online 2025:1-26. doi:<a href=\"https://doi.org/10.1080/00218464.2025.2600590\">10.1080/00218464.2025.2600590</a>","ieee":"J. Gilich, J. Kroos, D. Teutenberg, and G. Meschut, “Solvolytically debondable adhesive systems – potentials and challenges for repair and recycling,” <i>The Journal of Adhesion</i>, pp. 1–26, 2025, doi: <a href=\"https://doi.org/10.1080/00218464.2025.2600590\">10.1080/00218464.2025.2600590</a>.","chicago":"Gilich, Julian, Janika Kroos, Dominik Teutenberg, and Gerson Meschut. “Solvolytically Debondable Adhesive Systems – Potentials and Challenges for Repair and Recycling.” <i>The Journal of Adhesion</i>, 2025, 1–26. <a href=\"https://doi.org/10.1080/00218464.2025.2600590\">https://doi.org/10.1080/00218464.2025.2600590</a>.","mla":"Gilich, Julian, et al. “Solvolytically Debondable Adhesive Systems – Potentials and Challenges for Repair and Recycling.” <i>The Journal of Adhesion</i>, Informa UK Limited, 2025, pp. 1–26, doi:<a href=\"https://doi.org/10.1080/00218464.2025.2600590\">10.1080/00218464.2025.2600590</a>.","short":"J. Gilich, J. Kroos, D. Teutenberg, G. Meschut, The Journal of Adhesion (2025) 1–26.","bibtex":"@article{Gilich_Kroos_Teutenberg_Meschut_2025, title={Solvolytically debondable adhesive systems – potentials and challenges for repair and recycling}, DOI={<a href=\"https://doi.org/10.1080/00218464.2025.2600590\">10.1080/00218464.2025.2600590</a>}, journal={The Journal of Adhesion}, publisher={Informa UK Limited}, author={Gilich, Julian and Kroos, Janika and Teutenberg, Dominik and Meschut, Gerson}, year={2025}, pages={1–26} }","apa":"Gilich, J., Kroos, J., Teutenberg, D., &#38; Meschut, G. (2025). Solvolytically debondable adhesive systems – potentials and challenges for repair and recycling. <i>The Journal of Adhesion</i>, 1–26. <a href=\"https://doi.org/10.1080/00218464.2025.2600590\">https://doi.org/10.1080/00218464.2025.2600590</a>"},"page":"1-26","publication_status":"published","quality_controlled":"1","publication_identifier":{"issn":["0021-8464","1545-5823"]}},{"publication_status":"published","has_accepted_license":"1","publication_identifier":{"issn":["1863-9690","1863-9704"]},"citation":{"apa":"Rezat, S. (2025). The quality of digital curriculum resources for mathematics in German educational policy. <i>ZDM – Mathematics Education</i>, <i>57</i>, 891–904. <a href=\"https://doi.org/10.1007/s11858-025-01708-w\">https://doi.org/10.1007/s11858-025-01708-w</a>","mla":"Rezat, Sebastian. “The Quality of Digital Curriculum Resources for Mathematics in German Educational Policy.” <i>ZDM – Mathematics Education</i>, vol. 57, Springer Science and Business Media LLC, 2025, pp. 891–904, doi:<a href=\"https://doi.org/10.1007/s11858-025-01708-w\">10.1007/s11858-025-01708-w</a>.","short":"S. Rezat, ZDM – Mathematics Education 57 (2025) 891–904.","bibtex":"@article{Rezat_2025, title={The quality of digital curriculum resources for mathematics in German educational policy}, volume={57}, DOI={<a href=\"https://doi.org/10.1007/s11858-025-01708-w\">10.1007/s11858-025-01708-w</a>}, journal={ZDM – Mathematics Education}, publisher={Springer Science and Business Media LLC}, author={Rezat, Sebastian}, year={2025}, pages={891–904} }","chicago":"Rezat, Sebastian. “The Quality of Digital Curriculum Resources for Mathematics in German Educational Policy.” <i>ZDM – Mathematics Education</i> 57 (2025): 891–904. <a href=\"https://doi.org/10.1007/s11858-025-01708-w\">https://doi.org/10.1007/s11858-025-01708-w</a>.","ieee":"S. Rezat, “The quality of digital curriculum resources for mathematics in German educational policy,” <i>ZDM – Mathematics Education</i>, vol. 57, pp. 891–904, 2025, doi: <a href=\"https://doi.org/10.1007/s11858-025-01708-w\">10.1007/s11858-025-01708-w</a>.","ama":"Rezat S. The quality of digital curriculum resources for mathematics in German educational policy. <i>ZDM – Mathematics Education</i>. 2025;57:891–904. doi:<a href=\"https://doi.org/10.1007/s11858-025-01708-w\">10.1007/s11858-025-01708-w</a>"},"page":" 891–904","intvolume":"        57","author":[{"first_name":"Sebastian","last_name":"Rezat","full_name":"Rezat, Sebastian","id":"31132"}],"volume":57,"date_updated":"2025-12-16T14:32:27Z","doi":"10.1007/s11858-025-01708-w","type":"journal_article","status":"public","user_id":"31132","department":[{"_id":"360"}],"_id":"60196","file_date_updated":"2025-06-12T14:23:07Z","article_type":"original","quality_controlled":"1","year":"2025","date_created":"2025-06-12T14:21:07Z","publisher":"Springer Science and Business Media LLC","title":"The quality of digital curriculum resources for mathematics in German educational policy","publication":"ZDM – Mathematics Education","file":[{"date_updated":"2025-06-12T14:23:07Z","date_created":"2025-06-12T14:23:07Z","creator":"srezat","file_size":1296774,"file_id":"60197","file_name":"s11858-025-01708-w.pdf","access_level":"closed","content_type":"application/pdf","success":1,"relation":"main_file"}],"abstract":[{"lang":"eng","text":"This paper examines the governance and quality control of digital curriculum resources (DCR) for K-12 mathematics education in Germany. It focuses on approval processes and criteria set by the 16 federal states, arguing that these have the potential to influence the development of DCR. Using qualitative content analysis, the study explores three research questions: which DCR require official approval, the criteria applied for approval, and the extent to which these criteria are mathematics-specific. Findings indicate that 10 federal states maintain official approval systems, covering digital equivalents of printed textbooks and selected supplemental materials. However, most DCR fall outside these regulated processes, leaving their evaluation largely to individual schools and teachers. The study identifies 17 categories of quality criteria, but reveals a lack of detailed, mathematics-specific requirements. Instead, many criteria are broad references to didactical principles and educational goals, leaving the interpretation and application of these quality standards open-ended. Subject-specific criteria are included but remain limited in specificity. The study underscores the need for research-informed, mathematics-specific quality standards to guide DCR development and approval, emphasizing their importance amidst challenges like artificial intelligence. Policymakers are urged to adopt clearer criteria to ensure high-quality DCR to be used in schools."}],"language":[{"iso":"eng"}],"ddc":["370"],"keyword":["governance","digital curriculum resources","digital textbooks","digital curriculum materials","quality"]},{"language":[{"iso":"eng"}],"_id":"63150","department":[{"_id":"10"}],"user_id":"121953","status":"public","type":"preprint","title":"An equivalence linking CM-types $A_\\infty$ and $D_\\infty$","date_updated":"2025-12-16T14:40:06Z","date_created":"2025-12-16T14:38:59Z","author":[{"first_name":"Charley","full_name":"Cummings, Charley","last_name":"Cummings"},{"first_name":"Sira","last_name":"Gratz","full_name":"Gratz, Sira"},{"first_name":"Ellen","last_name":"Kirkman","full_name":"Kirkman, Ellen"},{"full_name":"Letz, Janina Carmen","id":"121953","last_name":"Letz","orcid":"0000-0002-5497-8296","first_name":"Janina Carmen"},{"last_name":"Rock","full_name":"Rock, J. Daisie","first_name":"J. Daisie"},{"first_name":"Špela","last_name":"Špenko","full_name":"Špenko, Špela"}],"year":"2025","page":"1-9","citation":{"ama":"Cummings C, Gratz S, Kirkman E, Letz JC, Rock JD, Špenko Š. An equivalence linking CM-types $A_\\infty$ and $D_\\infty$. Published online 2025:1-9.","ieee":"C. Cummings, S. Gratz, E. Kirkman, J. C. Letz, J. D. Rock, and Š. Špenko, “An equivalence linking CM-types $A_\\infty$ and $D_\\infty$.” pp. 1–9, 2025.","chicago":"Cummings, Charley, Sira Gratz, Ellen Kirkman, Janina Carmen Letz, J. Daisie Rock, and Špela Špenko. “An Equivalence Linking CM-Types $A_\\infty$ and $D_\\infty$,” 2025.","mla":"Cummings, Charley, et al. <i>An Equivalence Linking CM-Types $A_\\infty$ and $D_\\infty$</i>. 2025, pp. 1–9.","short":"C. Cummings, S. Gratz, E. Kirkman, J.C. Letz, J.D. Rock, Š. Špenko, (2025) 1–9.","bibtex":"@article{Cummings_Gratz_Kirkman_Letz_Rock_Špenko_2025, title={An equivalence linking CM-types $A_\\infty$ and $D_\\infty$}, author={Cummings, Charley and Gratz, Sira and Kirkman, Ellen and Letz, Janina Carmen and Rock, J. Daisie and Špenko, Špela}, year={2025}, pages={1–9} }","apa":"Cummings, C., Gratz, S., Kirkman, E., Letz, J. C., Rock, J. D., &#38; Špenko, Š. (2025). <i>An equivalence linking CM-types $A_\\infty$ and $D_\\infty$</i> (pp. 1–9)."},"related_material":{"link":[{"relation":"confirmation","url":"https://arxiv.org/abs/2510.24642"}]}},{"year":"2025","citation":{"mla":"Kekkou, Antonia, et al. <i>Regular Sequences for Triangulated Categories</i>. 2025, pp. 1–37.","short":"A. Kekkou, J.C. Letz, M. Stephan, (2025) 1–37.","bibtex":"@article{Kekkou_Letz_Stephan_2025, title={Regular sequences for triangulated categories}, author={Kekkou, Antonia and Letz, Janina Carmen and Stephan, Marc}, year={2025}, pages={1–37} }","apa":"Kekkou, A., Letz, J. C., &#38; Stephan, M. (2025). <i>Regular sequences for triangulated categories</i> (pp. 1–37).","ieee":"A. Kekkou, J. C. Letz, and M. Stephan, “Regular sequences for triangulated categories.” pp. 1–37, 2025.","chicago":"Kekkou, Antonia, Janina Carmen Letz, and Marc Stephan. “Regular Sequences for Triangulated Categories,” 2025.","ama":"Kekkou A, Letz JC, Stephan M. Regular sequences for triangulated categories. Published online 2025:1-37."},"page":"1-37","related_material":{"link":[{"relation":"confirmation","url":"https://arxiv.org/abs/2509.09941"}]},"title":"Regular sequences for triangulated categories","date_updated":"2025-12-16T14:42:14Z","date_created":"2025-12-16T14:38:56Z","author":[{"last_name":"Kekkou","full_name":"Kekkou, Antonia","first_name":"Antonia"},{"last_name":"Letz","orcid":"0000-0002-5497-8296","id":"121953","full_name":"Letz, Janina Carmen","first_name":"Janina Carmen"},{"first_name":"Marc","last_name":"Stephan","full_name":"Stephan, Marc"}],"status":"public","type":"preprint","extern":"1","language":[{"iso":"eng"}],"_id":"63149","user_id":"121953","department":[{"_id":"10"}]},{"related_material":{"link":[{"url":"https://arxiv.org/abs/2506.24038","relation":"confirmation"}]},"year":"2025","citation":{"apa":"Letz, J. C. (2025). <i>The Rouquier dimension of the category of perfect complexes over a regular ring</i> (pp. 1–7).","bibtex":"@article{Letz_2025, title={The Rouquier dimension of the category of perfect complexes over a regular ring}, author={Letz, Janina Carmen}, year={2025}, pages={1–7} }","short":"J.C. Letz, (2025) 1–7.","mla":"Letz, Janina Carmen. <i>The Rouquier Dimension of the Category of Perfect Complexes over a Regular Ring</i>. 2025, pp. 1–7.","ieee":"J. C. Letz, “The Rouquier dimension of the category of perfect complexes over a regular ring.” pp. 1–7, 2025.","chicago":"Letz, Janina Carmen. “The Rouquier Dimension of the Category of Perfect Complexes over a Regular Ring,” 2025.","ama":"Letz JC. The Rouquier dimension of the category of perfect complexes over a regular ring. Published online 2025:1-7."},"page":"1-7","date_updated":"2025-12-16T14:47:53Z","date_created":"2025-12-16T14:38:52Z","author":[{"id":"121953","full_name":"Letz, Janina Carmen","last_name":"Letz","orcid":"0000-0002-5497-8296","first_name":"Janina Carmen"}],"title":"The Rouquier dimension of the category of perfect complexes over a regular ring","type":"preprint","status":"public","_id":"63148","user_id":"121953","department":[{"_id":"10"}],"extern":"1","language":[{"iso":"eng"}]},{"doi":"10.1016/j.cam.2025.117184","title":"Commutator-free Cayley methods","volume":477,"author":[{"first_name":"Boris Edgar","id":"95394","full_name":"Wembe Moafo, Boris Edgar","last_name":"Wembe Moafo"},{"first_name":"Cristian ","last_name":"Offen","full_name":"Offen, Cristian "},{"last_name":"Maslovskaya","id":"87909","full_name":"Maslovskaya, Sofya","first_name":"Sofya"},{"last_name":"Ober-Blöbaum","id":"16494","full_name":"Ober-Blöbaum, Sina","first_name":"Sina"},{"first_name":"Pranav","last_name":"Singh","full_name":"Singh, Pranav"}],"date_created":"2025-04-10T14:42:52Z","date_updated":"2025-12-16T15:17:27Z","intvolume":"       477","citation":{"ieee":"B. E. Wembe Moafo, C. Offen, S. Maslovskaya, S. Ober-Blöbaum, and P. Singh, “Commutator-free Cayley methods,” <i>J. Comput. Appl. Math</i>, vol. 477, no. 15, doi: <a href=\"https://doi.org/10.1016/j.cam.2025.117184\">10.1016/j.cam.2025.117184</a>.","chicago":"Wembe Moafo, Boris Edgar, Cristian  Offen, Sofya Maslovskaya, Sina Ober-Blöbaum, and Pranav Singh. “Commutator-Free Cayley Methods.” <i>J. Comput. Appl. Math</i> 477, no. 15 (n.d.). <a href=\"https://doi.org/10.1016/j.cam.2025.117184\">https://doi.org/10.1016/j.cam.2025.117184</a>.","ama":"Wembe Moafo BE, Offen C, Maslovskaya S, Ober-Blöbaum S, Singh P. Commutator-free Cayley methods. <i>J Comput Appl Math</i>. 477(15). doi:<a href=\"https://doi.org/10.1016/j.cam.2025.117184\">10.1016/j.cam.2025.117184</a>","apa":"Wembe Moafo, B. E., Offen, C., Maslovskaya, S., Ober-Blöbaum, S., &#38; Singh, P. (n.d.). Commutator-free Cayley methods. <i>J. Comput. Appl. Math</i>, <i>477</i>(15). <a href=\"https://doi.org/10.1016/j.cam.2025.117184\">https://doi.org/10.1016/j.cam.2025.117184</a>","bibtex":"@article{Wembe Moafo_Offen_Maslovskaya_Ober-Blöbaum_Singh, title={Commutator-free Cayley methods}, volume={477}, DOI={<a href=\"https://doi.org/10.1016/j.cam.2025.117184\">10.1016/j.cam.2025.117184</a>}, number={15}, journal={J. Comput. Appl. Math}, author={Wembe Moafo, Boris Edgar and Offen, Cristian  and Maslovskaya, Sofya and Ober-Blöbaum, Sina and Singh, Pranav} }","short":"B.E. Wembe Moafo, C. Offen, S. Maslovskaya, S. Ober-Blöbaum, P. Singh, J. Comput. Appl. Math 477 (n.d.).","mla":"Wembe Moafo, Boris Edgar, et al. “Commutator-Free Cayley Methods.” <i>J. Comput. Appl. Math</i>, vol. 477, no. 15, doi:<a href=\"https://doi.org/10.1016/j.cam.2025.117184\">10.1016/j.cam.2025.117184</a>."},"year":"2025","issue":"15","publication_status":"submitted","language":[{"iso":"eng"}],"department":[{"_id":"94"}],"user_id":"95394","_id":"59507","status":"public","abstract":[{"lang":"eng","text":"Differential equations posed on quadratic matrix Lie groups arise in the context of classical mechanics and quantum dynamical systems. Lie group numerical integrators preserve the constants of motions defining the Lie group. Thus, they respect important physical laws of the dynamical system, such as unitarity and energy conservation in the context of quantum dynamical systems, for instance. In this article we develop a high-order commutator free Lie group integrator for non-autonomous differential equations evolving on quadratic Lie groups. Instead of matrix exponentials, which are expensive to evaluate and need to be approximated by appropriate rational functions in order to preserve the Lie group structure, the proposed method is obtained as a composition of Cayley transforms which naturally respect the structure of quadratic Lie groups while being computationally efficient to evaluate. Unlike Cayley-Magnus methods the method is also free from nested matrix commutators."}],"publication":"J. Comput. Appl. Math","type":"journal_article"},{"main_file_link":[{"url":"https://ieeexplore.ieee.org/document/11238538"}],"conference":{"location":"Birmingham, United Kingdom","end_date":"2025-09-04","start_date":"2025-09-01","name":"2025 Energy Conversion Congress & Expo Europe (ECCE Europe)"},"doi":"10.1109/ecce-europe62795.2025.11238538","title":"Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters","author":[{"first_name":"Roland","full_name":"Unruh, Roland","id":"34289","last_name":"Unruh"},{"first_name":"Joachim","orcid":"0000-0002-8480-7295","last_name":"Böcker","full_name":"Böcker, Joachim","id":"66"},{"last_name":"Schafmeister","id":"71291","full_name":"Schafmeister, Frank","first_name":"Frank"}],"date_created":"2025-12-16T15:20:55Z","publisher":"IEEE","date_updated":"2025-12-16T15:25:38Z","citation":{"ieee":"R. Unruh, J. Böcker, and F. Schafmeister, “Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters,” presented at the 2025 Energy Conversion Congress &#38; Expo Europe (ECCE Europe), Birmingham, United Kingdom, 2025, doi: <a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">10.1109/ecce-europe62795.2025.11238538</a>.","chicago":"Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters.” In <i>2025 Energy Conversion Congress &#38;amp;Amp; Expo Europe (ECCE Europe)</i>. IEEE, 2025. <a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">https://doi.org/10.1109/ecce-europe62795.2025.11238538</a>.","ama":"Unruh R, Böcker J, Schafmeister F. Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters. In: <i>2025 Energy Conversion Congress &#38;amp;Amp; Expo Europe (ECCE Europe)</i>. IEEE; 2025. doi:<a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">10.1109/ecce-europe62795.2025.11238538</a>","apa":"Unruh, R., Böcker, J., &#38; Schafmeister, F. (2025). Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters. <i>2025 Energy Conversion Congress &#38;amp;Amp; Expo Europe (ECCE Europe)</i>. 2025 Energy Conversion Congress &#38; Expo Europe (ECCE Europe), Birmingham, United Kingdom. <a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">https://doi.org/10.1109/ecce-europe62795.2025.11238538</a>","mla":"Unruh, Roland, et al. “Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters.” <i>2025 Energy Conversion Congress &#38;amp;Amp; Expo Europe (ECCE Europe)</i>, IEEE, 2025, doi:<a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">10.1109/ecce-europe62795.2025.11238538</a>.","short":"R. Unruh, J. Böcker, F. Schafmeister, in: 2025 Energy Conversion Congress &#38;amp;Amp; Expo Europe (ECCE Europe), IEEE, 2025.","bibtex":"@inproceedings{Unruh_Böcker_Schafmeister_2025, title={Three-Phase Instantaneous Current Controller for Unbalanced Grid Inductors Without DQ Transform for Cascaded H-Bridge Converters}, DOI={<a href=\"https://doi.org/10.1109/ecce-europe62795.2025.11238538\">10.1109/ecce-europe62795.2025.11238538</a>}, booktitle={2025 Energy Conversion Congress &#38;amp;amp; Expo Europe (ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister, Frank}, year={2025} }"},"year":"2025","publication_status":"published","language":[{"iso":"eng"}],"keyword":["Cascaded H-Bridge","Current Control","dq Transformation","Linear Regression","Unbalanced Inductors"],"user_id":"34289","department":[{"_id":"52"}],"_id":"63157","status":"public","abstract":[{"text":"Three-phase cascaded H-bridge converters (CHBs) in star configuration require reliable current controllers to evenly charge the module DC-link capacitors. Conventionally, a current control in dq-coordinates is utilized. At steady state, the resulting calculated reference arm voltages are sinusoidal, have identical amplitudes and show a phase shift of 120 degree to each other. For balanced grid inductors, the resulting grid currents also have the same amplitude. However, own simulations show that unbalanced grid inductors always lead to different grid current amplitudes (4% difference in this case). As a result, the averaged charging module powers differ and the peak DC-link capacitor voltage rises as well. In the first step, an adaptation of an existing zero-sequence voltage injection is proposed. For balanced grid inductors, it converges to the 3rd harmonic voltage injection which can reduce the peak-to-peak DC-link voltage ripple up by to 50% and balances the power between the phases. However, unbalanced grid inductors still lead to the same unbalanced grid currents of 4%. Therefore, a new method with 4 integrators based on linear regression is proposed to achieve sinusoidal grid currents for unbalanced inductors. The proposed method has a similar transient dynamic as the conventional dq control, but balances the grid currents nearly ideally. Simulation results of a 1MW cascaded H bridge and a scaled-down prototype verify the proposed method.","lang":"eng"}],"type":"conference","publication":"2025 Energy Conversion Congress &amp;amp; Expo Europe (ECCE Europe)"}]