--- _id: '57173' abstract: - lang: eng text: Manufacturing processes benefit from property control enabling reproducibility, application oriented outcomes, and efficient part production. In reverse flow forming, state of the art practices focus primarily on geometry control, neglecting property control. Given the intricacies of the process involving the interaction of tool and machine behavior, process parameters, properties of semi finished products and temperatures, incorporating process control becomes an imperative for producing components with predefined properties. The property controlled within this reverse flow forming process is the local α’ martensite content. Therefore, process strategies to actively influence the α’ martensite content must be implemented. In this study seamless AISI 304L steel tubes are used, where α’ martensite formation is strain and/or temperature induced through phase transformation within the process. This paper presents innovative process strategies, methods, and specially developed mechanical and thermal actuator systems to locally increase or suppress the α’ martensite content. The use and implementation of these approaches and tools allows the creation of unique optically invisible microstructure profiles containing 3D gradings, implying a radial grading of α’ martensite. The locally implemented α’ martensite, forming these 3D gradings, offers potential applications for functional or sensory purposes. This paper extends beyond theoretical concepts, providing tangible component outcomes. author: - first_name: Bahman full_name: Arian, Bahman id: '36287' last_name: Arian - first_name: Werner full_name: Homberg, Werner id: '233' last_name: Homberg - first_name: Lukas full_name: Kersting, Lukas last_name: Kersting - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler - first_name: Julian full_name: Rozo Vasquez, Julian last_name: Rozo Vasquez - first_name: Frank full_name: Walther, Frank last_name: Walther citation: ama: 'Arian B, Homberg W, Kersting L, Trächtler A, Rozo Vasquez J, Walther F. α’-martensite grading techniques in reverse flow forming of AISI 304L. In: Materials Research Proceedings. Vol 44. Materials Research Forum LLC; 2024. doi:10.21741/9781644903254-76' apa: Arian, B., Homberg, W., Kersting, L., Trächtler, A., Rozo Vasquez, J., & Walther, F. (2024). α’-martensite grading techniques in reverse flow forming of AISI 304L. Materials Research Proceedings, 44. https://doi.org/10.21741/9781644903254-76 bibtex: '@inproceedings{Arian_Homberg_Kersting_Trächtler_Rozo Vasquez_Walther_2024, title={α’-martensite grading techniques in reverse flow forming of AISI 304L}, volume={44}, DOI={10.21741/9781644903254-76}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Arian, Bahman and Homberg, Werner and Kersting, Lukas and Trächtler, Ansgar and Rozo Vasquez, Julian and Walther, Frank}, year={2024} }' chicago: Arian, Bahman, Werner Homberg, Lukas Kersting, Ansgar Trächtler, Julian Rozo Vasquez, and Frank Walther. “α’-Martensite Grading Techniques in Reverse Flow Forming of AISI 304L.” In Materials Research Proceedings, Vol. 44. Materials Research Forum LLC, 2024. https://doi.org/10.21741/9781644903254-76. ieee: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, and F. Walther, “α’-martensite grading techniques in reverse flow forming of AISI 304L,” in Materials Research Proceedings, 2024, vol. 44, doi: 10.21741/9781644903254-76.' mla: Arian, Bahman, et al. “α’-Martensite Grading Techniques in Reverse Flow Forming of AISI 304L.” Materials Research Proceedings, vol. 44, Materials Research Forum LLC, 2024, doi:10.21741/9781644903254-76. short: 'B. Arian, W. Homberg, L. Kersting, A. Trächtler, J. Rozo Vasquez, F. Walther, in: Materials Research Proceedings, Materials Research Forum LLC, 2024.' date_created: 2024-11-18T10:06:17Z date_updated: 2024-11-18T10:42:55Z department: - _id: '241' - _id: '153' - _id: '156' doi: 10.21741/9781644903254-76 intvolume: ' 44' language: - iso: eng publication: Materials Research Proceedings publication_identifier: issn: - 2474-395X publication_status: published publisher: Materials Research Forum LLC quality_controlled: '1' status: public title: α’-martensite grading techniques in reverse flow forming of AISI 304L type: conference user_id: '41470' volume: 44 year: '2024' ... --- _id: '57429' author: - first_name: Bettina full_name: Krueger, Bettina id: '49428' last_name: Krueger orcid: 0000-0001-5351-1785 - first_name: Bianca full_name: Stutz, Bianca id: '77099' last_name: Stutz - first_name: Rasmus full_name: Jakobsmeyer, Rasmus id: '9583' last_name: Jakobsmeyer orcid: 0000-0002-9385-0834 - first_name: Claus full_name: Reinsberger, Claus id: '48978' last_name: Reinsberger - first_name: Anette E. full_name: Buyken, Anette E. id: '65985' last_name: Buyken citation: ama: Krueger B, Stutz B, Jakobsmeyer R, Reinsberger C, Buyken AE. Relevance of high glycaemic index breakfast for heart rate variability among collegiate students with early and late chronotypes. Chronobiology International. Published online 2024:1-10. doi:10.1080/07420528.2024.2428203 apa: Krueger, B., Stutz, B., Jakobsmeyer, R., Reinsberger, C., & Buyken, A. E. (2024). Relevance of high glycaemic index breakfast for heart rate variability among collegiate students with early and late chronotypes. Chronobiology International, 1–10. https://doi.org/10.1080/07420528.2024.2428203 bibtex: '@article{Krueger_Stutz_Jakobsmeyer_Reinsberger_Buyken_2024, title={Relevance of high glycaemic index breakfast for heart rate variability among collegiate students with early and late chronotypes}, DOI={10.1080/07420528.2024.2428203}, journal={Chronobiology International}, publisher={Informa UK Limited}, author={Krueger, Bettina and Stutz, Bianca and Jakobsmeyer, Rasmus and Reinsberger, Claus and Buyken, Anette E.}, year={2024}, pages={1–10} }' chicago: Krueger, Bettina, Bianca Stutz, Rasmus Jakobsmeyer, Claus Reinsberger, and Anette E. Buyken. “Relevance of High Glycaemic Index Breakfast for Heart Rate Variability among Collegiate Students with Early and Late Chronotypes.” Chronobiology International, 2024, 1–10. https://doi.org/10.1080/07420528.2024.2428203. ieee: 'B. Krueger, B. Stutz, R. Jakobsmeyer, C. Reinsberger, and A. E. Buyken, “Relevance of high glycaemic index breakfast for heart rate variability among collegiate students with early and late chronotypes,” Chronobiology International, pp. 1–10, 2024, doi: 10.1080/07420528.2024.2428203.' mla: Krueger, Bettina, et al. “Relevance of High Glycaemic Index Breakfast for Heart Rate Variability among Collegiate Students with Early and Late Chronotypes.” Chronobiology International, Informa UK Limited, 2024, pp. 1–10, doi:10.1080/07420528.2024.2428203. short: B. Krueger, B. Stutz, R. Jakobsmeyer, C. Reinsberger, A.E. Buyken, Chronobiology International (2024) 1–10. date_created: 2024-11-26T10:51:33Z date_updated: 2024-11-26T10:52:50Z department: - _id: '35' - _id: '22' doi: 10.1080/07420528.2024.2428203 language: - iso: eng page: 1-10 publication: Chronobiology International publication_identifier: issn: - 0742-0528 - 1525-6073 publication_status: published publisher: Informa UK Limited status: public title: Relevance of high glycaemic index breakfast for heart rate variability among collegiate students with early and late chronotypes type: journal_article user_id: '49428' year: '2024' ... --- _id: '54356' abstract: - lang: eng text: "Although there are numerous design and control methodologies for the LLC resonant converter,\r\nthey often do not consider decentralized control strategies to operate them as isolated DC-DC converters within a\r\ncascaded H-bridge. The total output power of all LLC converters must be constant to supply a load such as a wa-\r\nter electrolyzer. However, each individual LLC converter can vary its output power as long as the total output\r\npower remains constant. This opens new possibilities in increasing the system efficiency and robustness. Usually,\r\nthe DC-link voltage of each module capacitor shows a 2nd harmonic voltage ripple. However, the total stored energy\r\nin all DC-link capacitors is constant within a grid period for a balanced three-phase system. By controlling each\r\nLLC converter’s output power locally to be proportional to the energy stored in its DC-link capacitor, modules with\r\na lower instantaneous DC-link voltage transfer less power to the load than modules with a higher DC-link voltage.\r\nAs a result, a higher efficiency, voltage gain and lower peak resonant capacitor voltage can be achieved with the\r\nsame components. The 22.2kW experimental prototype of the LLC converter reaches an efficiency of over 97% at\r\nresonance which is similar to the precalculated value." author: - first_name: Roland full_name: Unruh, Roland id: '34289' last_name: Unruh - first_name: Joachim full_name: Böcker, Joachim id: '66' last_name: Böcker orcid: 0000-0002-8480-7295 - first_name: Frank full_name: Schafmeister, Frank id: '71291' last_name: Schafmeister citation: ama: 'Unruh R, Böcker J, Schafmeister F. Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter. In: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe. IEEE. doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954' apa: Unruh, R., Böcker, J., & Schafmeister, F. (n.d.). Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter. ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe. ECCE Europe 2024, Darmstadt, Germany. https://doi.org/10.1109/ECCEEurope62508.2024.10751954 bibtex: '@inproceedings{Unruh_Böcker_Schafmeister, place={Darmstadt}, title={Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter}, DOI={https://doi.org/10.1109/ECCEEurope62508.2024.10751954}, booktitle={ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe}, publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister, Frank} }' chicago: 'Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” In ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe. Darmstadt: IEEE, n.d. https://doi.org/10.1109/ECCEEurope62508.2024.10751954.' ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter,” presented at the ECCE Europe 2024, Darmstadt, Germany, doi: https://doi.org/10.1109/ECCEEurope62508.2024.10751954.' mla: Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, doi:https://doi.org/10.1109/ECCEEurope62508.2024.10751954. short: 'R. Unruh, J. Böcker, F. Schafmeister, in: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe, IEEE, Darmstadt, n.d.' conference: end_date: 2024-09-06 location: Darmstadt, Germany name: ECCE Europe 2024 start_date: 2024-09-02 date_created: 2024-05-19T14:26:29Z date_updated: 2024-11-28T14:16:05Z department: - _id: '52' doi: https://doi.org/10.1109/ECCEEurope62508.2024.10751954 keyword: - Cascaded H-Bridge - Converter Losses - Decentralized Control - Full-Bridge Converter - LLC Resonant Converter language: - iso: eng main_file_link: - url: https://ieeexplore.ieee.org/abstract/document/10751954 place: Darmstadt publication: ECCE Europe 2024; IEEE Energy Conversion Congress & Exposition Europe publication_identifier: isbn: - 979-8-3503-6444-6 publication_status: accepted publisher: IEEE status: public title: Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter type: conference user_id: '34289' year: '2024' ... --- _id: '57648' abstract: - lang: ger text: Das Themenheft präsentiert forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. Die COVID-19-Pandemie führte zu einer grundlegenden Umgestaltung der Hochschullehre und wirkte als Katalysator für die Gestaltung digital unterstützender Innovationen in der Hochschullehre. Unter dem Schlagwort postdigiale Hochschullehre beschäftigten sich die vorliegenden Beiträge der dghd-Tagung 2022 mit diesem veränderten Lehren und Lernen. citation: ama: Vöing N, ed. Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. Vol 10.; 2024. doi:10.3278/HSLT2402W apa: Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. (2024). In N. Vöing (Ed.), die hochschullehre (Vol. 10). https://doi.org/10.3278/HSLT2402W bibtex: '@book{Vöing_2024, title={Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre}, volume={10}, DOI={10.3278/HSLT2402W}, journal={die hochschullehre}, year={2024} }' chicago: Vöing, Nerea, ed. Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. die hochschullehre. Vol. 10, 2024. https://doi.org/10.3278/HSLT2402W. ieee: N. Vöing, Ed., Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre, vol. 10. 2024. mla: Vöing, Nerea, editor. “Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre.” die hochschullehre, vol. 10, 2024, doi:10.3278/HSLT2402W. short: N. Vöing, ed., Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre, 2024. conference: end_date: 9.9.2022 location: Paderborn name: 22. Jahrestagung der Deutschen Gesellschaft für Hochschuldidaktik start_date: 6.9.2022 date_created: 2024-12-09T09:07:06Z date_updated: 2024-12-09T09:07:12Z ddc: - '370' doi: 10.3278/HSLT2402W editor: - first_name: Nerea full_name: Vöing, Nerea id: '5054' last_name: Vöing file: - access_level: closed content_type: application/pdf creator: nerea date_created: 2024-12-09T09:05:36Z date_updated: 2024-12-09T09:05:36Z file_id: '57649' file_name: HSLT2402W.pdf file_size: 3949565 relation: main_file success: 1 file_date_updated: 2024-12-09T09:05:36Z has_accepted_license: '1' intvolume: ' 10' language: - iso: ger license: https://creativecommons.org/licenses/by-sa/3.0/ publication: die hochschullehre publication_status: published status: public title: Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre type: journal_editor user_id: '5054' volume: 10 year: '2024' ... --- _id: '58648' author: - first_name: Roland full_name: Unruh, Roland id: '34289' last_name: Unruh - first_name: 'Joachim ' full_name: 'Böcker, Joachim ' last_name: Böcker - first_name: Frank full_name: Schafmeister, Frank id: '71291' last_name: Schafmeister citation: ama: 'Unruh R, Böcker J, Schafmeister F. Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter. In: Proceedings of the Energy Conversion Congress & Expo (ECCE Europe). IEEE; 2024. doi:10.1109/ECCEEurope62508.2024.10751954' apa: Unruh, R., Böcker, J., & Schafmeister, F. (2024). Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter. Proceedings of the Energy Conversion Congress & Expo (ECCE Europe). Energy Conversion Congress & Expo (ECCE Europe), Darmstadt. https://doi.org/10.1109/ECCEEurope62508.2024.10751954 bibtex: '@inproceedings{Unruh_Böcker_Schafmeister_2024, title={Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter}, DOI={10.1109/ECCEEurope62508.2024.10751954}, booktitle={Proceedings of the Energy Conversion Congress & Expo (ECCE Europe)}, publisher={IEEE}, author={Unruh, Roland and Böcker, Joachim and Schafmeister, Frank}, year={2024} }' chicago: Unruh, Roland, Joachim Böcker, and Frank Schafmeister. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” In Proceedings of the Energy Conversion Congress & Expo (ECCE Europe). IEEE, 2024. https://doi.org/10.1109/ECCEEurope62508.2024.10751954. ieee: 'R. Unruh, J. Böcker, and F. Schafmeister, “Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter,” presented at the Energy Conversion Congress & Expo (ECCE Europe), Darmstadt, 2024, doi: 10.1109/ECCEEurope62508.2024.10751954.' mla: Unruh, Roland, et al. “Experimentally Verified 22 KW, 40 KHz LLC Resonant Converter Design with New Control for a 1 MW Cascaded H-Bridge Converter.” Proceedings of the Energy Conversion Congress & Expo (ECCE Europe), IEEE, 2024, doi:10.1109/ECCEEurope62508.2024.10751954. short: 'R. Unruh, J. Böcker, F. Schafmeister, in: Proceedings of the Energy Conversion Congress & Expo (ECCE Europe), IEEE, 2024.' conference: end_date: 2024-09-06 location: Darmstadt name: ' Energy Conversion Congress & Expo (ECCE Europe)' start_date: 2024-09-02 date_created: 2025-02-14T15:30:36Z date_updated: 2025-02-14T15:33:10Z ddc: - '620' department: - _id: '52' doi: 10.1109/ECCEEurope62508.2024.10751954 file: - access_level: closed content_type: application/pdf creator: schafmei date_created: 2025-02-14T15:32:17Z date_updated: 2025-02-14T15:32:17Z file_id: '58649' file_name: EPE_2024_09_02-Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter.pdf file_size: 3829411 relation: main_file success: 1 file_date_updated: 2025-02-14T15:32:17Z has_accepted_license: '1' language: - iso: eng publication: Proceedings of the Energy Conversion Congress & Expo (ECCE Europe) publication_status: published publisher: IEEE status: public title: Experimentally Verified 22 kW, 40 kHz LLC Resonant Converter Design with new Control for a 1 MW Cascaded H-Bridge Converter type: conference user_id: '71291' year: '2024' ... --- _id: '58695' abstract: - lang: eng text: "Abstract\r\n Benjaminse, A, Nijmeijer, EM, Gokeler, A, Broekhaar, DC, and Cortes, N. Motivation unraveled: giving choice to football players to improve anterior cruciate ligament injury prevention. J Strength Cond Res XX(X): 000–000, 2024—Providing athletes some control over a training session facilitates motor skill acquisition. This is a promising concept to use in anterior cruciate ligament (ACL) injury prevention, as the key for risk reduction is to improve quality of movement. The goal of this study was to better understand why improved motor learning occurred when football players had the opportunity to choose when to receive feedback when practicing sidestep cutting (SSC) movements. Healthy male recreational football players (n = 22, 22.9 ± 1.7 years, 185.5 ± 7.2 cm, 79.3 ± 9.2 kg) were included and assigned to the self-control (SC) or the yoked (YK) group. The players performed anticipated and unanticipated SSC. They received video instructions and were instructed to “copy the movement of the model to the best of their ability.” During the training blocks, the SC group could ask for feedback, whereas the YK group could not. Cutting movement assessment scores (CMAS) were measured to test quality of movement and the Intrinsic Motivation Inventory was administered to measure constructs of motivation. In the anticipated condition, SC group showed better scores in immediate post and the retention test compared with pretest (p < 0.001), whereas the YK group showed worse scores in the retention test compared with immediate posttest (p = 0.001). Perceived competence (p = 0.017) and self-efficacy (p = 0.032) were consistent factors that correlated with improved CMAS in the SC group. This has given us innovative insights into underlying mechanisms optimizing the quality of movement, necessary to improve current ACL injury prevention approaches." author: - first_name: Anne full_name: Benjaminse, Anne last_name: Benjaminse - first_name: Eline M. full_name: Nijmeijer, Eline M. last_name: Nijmeijer - first_name: Alli full_name: Gokeler, Alli last_name: Gokeler - first_name: Dara C. full_name: Broekhaar, Dara C. last_name: Broekhaar - first_name: Nelson full_name: Cortes, Nelson last_name: Cortes citation: ama: 'Benjaminse A, Nijmeijer EM, Gokeler A, Broekhaar DC, Cortes N. Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention. Journal of Strength &amp; Conditioning Research. Published online 2024. doi:10.1519/jsc.0000000000004912' apa: 'Benjaminse, A., Nijmeijer, E. M., Gokeler, A., Broekhaar, D. C., & Cortes, N. (2024). Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention. Journal of Strength &amp; Conditioning Research. https://doi.org/10.1519/jsc.0000000000004912' bibtex: '@article{Benjaminse_Nijmeijer_Gokeler_Broekhaar_Cortes_2024, title={Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention}, DOI={10.1519/jsc.0000000000004912}, journal={Journal of Strength &amp; Conditioning Research}, publisher={Ovid Technologies (Wolters Kluwer Health)}, author={Benjaminse, Anne and Nijmeijer, Eline M. and Gokeler, Alli and Broekhaar, Dara C. and Cortes, Nelson}, year={2024} }' chicago: 'Benjaminse, Anne, Eline M. Nijmeijer, Alli Gokeler, Dara C. Broekhaar, and Nelson Cortes. “Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention.” Journal of Strength &amp; Conditioning Research, 2024. https://doi.org/10.1519/jsc.0000000000004912.' ieee: 'A. Benjaminse, E. M. Nijmeijer, A. Gokeler, D. C. Broekhaar, and N. Cortes, “Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention,” Journal of Strength &amp; Conditioning Research, 2024, doi: 10.1519/jsc.0000000000004912.' mla: 'Benjaminse, Anne, et al. “Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention.” Journal of Strength &amp; Conditioning Research, Ovid Technologies (Wolters Kluwer Health), 2024, doi:10.1519/jsc.0000000000004912.' short: A. Benjaminse, E.M. Nijmeijer, A. Gokeler, D.C. Broekhaar, N. Cortes, Journal of Strength &amp; Conditioning Research (2024). date_created: 2025-02-18T14:39:06Z date_updated: 2025-02-18T14:39:48Z department: - _id: '172' doi: 10.1519/jsc.0000000000004912 language: - iso: eng publication: Journal of Strength & Conditioning Research publication_identifier: issn: - 1064-8011 publication_status: published publisher: Ovid Technologies (Wolters Kluwer Health) status: public title: 'Motivation Unraveled: Giving Choice to Football Players to Improve Anterior Cruciate Ligament Injury Prevention' type: journal_article user_id: '46' year: '2024' ... --- _id: '58702' abstract: - lang: eng text: Background In basketball, changing direction is one of the primary mechanisms of anterior cruciate ligament (ACL) injury, often occurring within complex game situations with high cognitive demands. It is unknown how visual attention affects sidestep cutting kinematics during the entire energy absorption phase of the cut in an ecologically valid environment. Purpose The purpose of this research was to study the effect of added cognitive load, in the form of increased visual attentional demands, on sidestep cutting kinematics during the energy absorption phase of the cut in an ecologically valid environment. Study Design Crossover Study Methods Fifteen male basketball players (aged 22.1 ± 2.3) performed ten sidestep cutting movements without (BASE) and with (VIS) a visual attention dual task. 3D kinematics of the hip, knee and ankle were recorded utilizing Xsens IMU motion capture. Temporal kinematics were analyzed using Statistical Parametric Mapping. Discrete time point kinematics were additionally analyzed at initial contact (IC) and at peak knee flexion utilizing paired t-tests. Effect sizes were calculated. Results Hip flexion was significantly reduced in the VIS condition compared to the BASE condition (p<0.01), including at IC (VIS 35.0° ± 7.2°, BASE 40.7° ± 4.9°, p=0.02, d=0.92) and peak (VIS 37.8° ± 9.7°, BASE 45.5° ± 6.9°, p=0.001, d=0.90). Knee flexion was significantly reduced in the VIS condition, in comparison to the BASE condition (p<0.01), at peak (VIS 59.9° ± 7.5°, BASE 64.1° ± 7.4°, p=0.001, d=0.55). Conclusion The addition of visual attention during sidestep cutting altered lower limb kinematics, which may increase ACL injury risk. It is suggested that ACL injury risk screening and prevention should include sidestep cutting with visual attentional demands, in order to mimic the cognitive demands of the sports environment. Level of Evidence 3 author: - first_name: Koen T.H. full_name: Rikken, Koen T.H. last_name: Rikken - first_name: Tom full_name: Panneman, Tom last_name: Panneman - first_name: Fabian full_name: Vercauteren, Fabian last_name: Vercauteren - first_name: Alli full_name: Gokeler, Alli last_name: Gokeler - first_name: Anne full_name: Benjaminse, Anne last_name: Benjaminse citation: ama: Rikken KTH, Panneman T, Vercauteren F, Gokeler A, Benjaminse A. Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players. International Journal of Sports Physical Therapy. 2024;19(11). doi:10.26603/001c.124804 apa: Rikken, K. T. H., Panneman, T., Vercauteren, F., Gokeler, A., & Benjaminse, A. (2024). Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players. International Journal of Sports Physical Therapy, 19(11). https://doi.org/10.26603/001c.124804 bibtex: '@article{Rikken_Panneman_Vercauteren_Gokeler_Benjaminse_2024, title={Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players}, volume={19}, DOI={10.26603/001c.124804}, number={11}, journal={International Journal of Sports Physical Therapy}, publisher={International Journal of Sports Physical Therapy}, author={Rikken, Koen T.H. and Panneman, Tom and Vercauteren, Fabian and Gokeler, Alli and Benjaminse, Anne}, year={2024} }' chicago: Rikken, Koen T.H., Tom Panneman, Fabian Vercauteren, Alli Gokeler, and Anne Benjaminse. “Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players.” International Journal of Sports Physical Therapy 19, no. 11 (2024). https://doi.org/10.26603/001c.124804. ieee: 'K. T. H. Rikken, T. Panneman, F. Vercauteren, A. Gokeler, and A. Benjaminse, “Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players,” International Journal of Sports Physical Therapy, vol. 19, no. 11, 2024, doi: 10.26603/001c.124804.' mla: Rikken, Koen T. H., et al. “Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players.” International Journal of Sports Physical Therapy, vol. 19, no. 11, International Journal of Sports Physical Therapy, 2024, doi:10.26603/001c.124804. short: K.T.H. Rikken, T. Panneman, F. Vercauteren, A. Gokeler, A. Benjaminse, International Journal of Sports Physical Therapy 19 (2024). date_created: 2025-02-18T14:51:11Z date_updated: 2025-02-18T14:51:20Z department: - _id: '172' doi: 10.26603/001c.124804 intvolume: ' 19' issue: '11' language: - iso: eng publication: International Journal of Sports Physical Therapy publication_identifier: issn: - 2159-2896 publication_status: published publisher: International Journal of Sports Physical Therapy status: public title: Increased Visual Attentional Demands Alter Lower Extremity Sidestep Cutting Kinematics in Male Basketball Players type: journal_article user_id: '46' volume: 19 year: '2024' ... --- _id: '57499' author: - first_name: J. full_name: Maalouly, J. last_name: Maalouly - first_name: D. full_name: Hemker, D. last_name: Hemker - first_name: C. full_name: Hedayat, C. last_name: Hedayat - first_name: M. full_name: Olbrich, M. last_name: Olbrich - first_name: Sven full_name: Lange, Sven id: '38240' last_name: Lange orcid: '0009-0007-9150-2266 ' - first_name: H. full_name: Mathis, H. last_name: Mathis citation: ama: Maalouly J, Hemker D, Hedayat C, Olbrich M, Lange S, Mathis H. Using Autoencoders to Classify EMC Problems in Electronic System Development. Advances in Radio Science. 2024;22:53–59. doi:10.5194/ars-22-53-2024 apa: Maalouly, J., Hemker, D., Hedayat, C., Olbrich, M., Lange, S., & Mathis, H. (2024). Using Autoencoders to Classify EMC Problems in Electronic System Development. Advances in Radio Science, 22, 53–59. https://doi.org/10.5194/ars-22-53-2024 bibtex: '@article{Maalouly_Hemker_Hedayat_Olbrich_Lange_Mathis_2024, title={Using Autoencoders to Classify EMC Problems in Electronic System Development}, volume={22}, DOI={10.5194/ars-22-53-2024}, journal={Advances in Radio Science}, author={Maalouly, J. and Hemker, D. and Hedayat, C. and Olbrich, M. and Lange, Sven and Mathis, H.}, year={2024}, pages={53–59} }' chicago: 'Maalouly, J., D. Hemker, C. Hedayat, M. Olbrich, Sven Lange, and H. Mathis. “Using Autoencoders to Classify EMC Problems in Electronic System Development.” Advances in Radio Science 22 (2024): 53–59. https://doi.org/10.5194/ars-22-53-2024.' ieee: 'J. Maalouly, D. Hemker, C. Hedayat, M. Olbrich, S. Lange, and H. Mathis, “Using Autoencoders to Classify EMC Problems in Electronic System Development,” Advances in Radio Science, vol. 22, pp. 53–59, 2024, doi: 10.5194/ars-22-53-2024.' mla: Maalouly, J., et al. “Using Autoencoders to Classify EMC Problems in Electronic System Development.” Advances in Radio Science, vol. 22, 2024, pp. 53–59, doi:10.5194/ars-22-53-2024. short: J. Maalouly, D. Hemker, C. Hedayat, M. Olbrich, S. Lange, H. Mathis, Advances in Radio Science 22 (2024) 53–59. conference: end_date: 2023-09-28 location: Miltenberg name: Kleinheubacher Berichte 2023 start_date: 2023-09-26 date_created: 2024-11-29T10:05:47Z date_updated: 2025-03-17T12:13:32Z department: - _id: '59' - _id: '485' doi: 10.5194/ars-22-53-2024 intvolume: ' 22' language: - iso: eng main_file_link: - url: https://ars.copernicus.org/articles/22/53/2024/ page: 53–59 project: - _id: '52' name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing' publication: Advances in Radio Science publication_status: published status: public title: Using Autoencoders to Classify EMC Problems in Electronic System Development type: journal_article user_id: '38240' volume: 22 year: '2024' ... --- _id: '59131' abstract: - lang: eng text: 'Füllstoffe erhöhen die Wärmeleitfähigkeit von im Fused Filament Fabrication (FFF) Verfahren hergestellten Strukturen. Neben der Füllstoffart ist dabei der Füllstoffvolumenanteil relevant. Der maximal verarbeitbare Füllstoffanteil ist hier gegenüber vergleichbaren Spritzgussmaterialien reduziert. An der Kunststofftechnik Paderborn (KTP) wurde untersucht, welchen Einfluss spezifische Füllstoffe auf die Materialeigenschaften haben. Die additive Fertigung (AM) gewinnt durch stetig steigende Anforderungen an die Bauteilkomplexität und Fertigungsflexibilität nicht nur im Prototypenbau an Bedeutung [1]. Eines der am weitesten verbreiteten additiven Fertigungsverfahren ist dabei das Fused Filament Fabrication (FFF) Verfahren [2]. Bei diesem Verfahren wird ein Kunststofffilament in eine temperierte Düse gefördert, dort aufgeschmolzen und in einer charakteristischen, näherungsweise elliptischen Stranggeometrie ausgetragen. Durch die Verfahrbewegung der Plastifiziereinheit und der Bauplattform können dreidimensionale Strukturen gefertigt werden [3]. Das FFF-Verfahren zeichnet sich unter anderem durch die Verarbeitung einer großen Bandbreite an thermoplastischen Kunststoffen aus [4]. Dies ermöglicht eine anwendungsspezifische Materialauswahl. In diesem Zusammenhang stellt auch die Modifizierung mit Füllstoffen eine Möglichkeit dar, die Materialeigenschaften gezielt einzustellen. Die Füllstoffe können dabei nach dem jeweiligen Aspektverhältnis in Kugeln, Plättchen oder Fasern unterteilt werden [5]. Die Steigerung der Wärmeleitfähigkeit von im FFF-Verfahren hergestellten Strukturen ist aktuell Stand der Forschung, gewinnt jedoch vor dem Hintergrund der aktuellen Herausforderungen, z. B. in der Elektrotechnik, an Bedeutung [6]. Die Kunststofftechnik Paderborn (KTP) befasst sich am Direct Manufacturing Research Center (DMRC) – Academic derzeit mit der Entwicklung und Verarbeitung wärmeleitfähiger Kunststoffe für das FFF-Verfahren. Der Fokus liegt dabei auf den material- und prozessseitigen Einflüssen auf die Materialeigenschaften. Für die Erzielung hoher Wärmeleitfähigkeiten sind dabei die Wahl der Füllstoffart und des Füllstoffvolumenanteils hervorzuheben. Kenntnisse über die Auswirkungen der Füllstoffzugabe und dem Zusammenspiel zwischen den mechanischen Eigenschaften und der Wärmeleitfähigkeit sind für die anwendungsgerechte Bauteilauslegung essenziell. Das Vorgehen Zur Analyse der Wärmeleitfähigkeit wurde eine am DMRC – Academic entwickelte Methode verwendet. Diese basiert auf der Fertigung von zylindrischen Probekörpern, welche im FFF-Verfahren entlang der Längsachse parallel zu den drei Koordinatenrichtungen X, Y und Z orientiert gefertigt werden. Im Anschluss werden die Probekörper spanend auf das für die Messung erforderliche Maß nachbearbeitet. Dadurch können fertigungsbedingte Einflüsse auf die Geometrie und Oberflächengüte reduziert und damit die Messgenauigkeit erhöht werden (Bild 2). Durch die Fertigung von drei unterschiedlichen Orientierungen kann weiterhin eine resultierende Anisotropie bewertet werden. Die auf einem Doppelschneckenextruder (Thermo Fisher Process11) hergestellten Filamente wurden nachfolgend mit einem Gewo HTP260 (Gewo Feinmechanik) verarbeitet. Die entsprechenden FFF-Prozessparameter sind in Tabelle 1 dargestellt. Dabei ist anzumerken, dass eine Bauraumtemperierung im Allgemeinen und der auf 120 °C beheizte Bauraum für die Verarbeitung der betrachteten Materialien im Speziellen zur prozesssicheren FFF-Fertigung unerlässlich sind. Die Analyse der Wärmeleitfähigkeit erfolgte schließlich mittels der Laser-Flash-Analyse (LFA) (Netzsch LFA 467 HyperFlash) entsprechend der DIN EN ISO 22007-4 [7]. Für die Bewertung der mechanischen Eigenschaften wurden Probekörper entsprechend der DIN EN ISO 527-2 Typ 1BA unter Verwendung einer Kolben-Spritzgussmaschine (Thermo Fisher Mini Jet Pro) gefertigt und mit einer Zugprüfmaschine (Zwick/Roell ProLine Z 010) geprüft, um den grundlegenden Füllstoffeinfluss bewerten zu können [8]. Für die Untersuchungen wurde ein Kunststoff-Compound basierend auf Polybutylenterephthalat (PBT) ohne (PBTx) und mit (PBTxa) Verarbeitungshilfe verwendet. Als Füllstoffe kamen zwei wärmeleitfähige plättchenförmige Füllstoffe (Bezeichnung: F1 und F2) zur Anwendung, welche einen mittleren Partikeldurchmesser (d50) für F1 von 5,0 µm und für F2 von 7,9 µm aufweisen. Ergebnisse der Zugversuche Die Auswertung der mechanischen Eigenschaften zeigt den Einfluss des Füllstoffvolumenanteils anhand des Elastizitätsmoduls und der Bruchdehnung auf (Bild 3). Die resultierende Festigkeit wird durch die geringe Verstärkungswirkung der Plättchen hingegen nur geringfügig beeinflusst und ist folglich nicht gesondert aufgeführt. Im Gegensatz dazu erhöht sich die Steifigkeit mit steigendem Füllstoffvolumenanteil, was auf den erhöhten E-Modul der Füllstoffe gegenüber der Kunststoffmatrix zurückzuführen ist. So kann durch die Füllstoffzugabe mit einem Volumenanteil in Höhe von 22 {%} der E-Modul für das Material PBTxa-F1 gegenüber der reinen Kunststoffmatrix um den Faktor 2,7 gesteigert werden. Hingegen nimmt die Bruchdehnung mit steigendem Füllstoffvolumenanteil ab. Diese mit dem Volumenanteil positiv korrelierende Versprödung stellt einen begrenzenden Faktor bei der Herstellung hochgefüllter Filamente dar. So neigen höher gefüllte Filamente eher zu einem Bruch bei der Herstellung und Verarbeitung. Dies resultiert in den vorliegenden maximalen Füllstoffvolumenanteilen, welche im Vergleich zu Spritzgussmaterialien deutlich reduziert sind. Eine weitere Erhöhung führt zu einer unzureichenden Prozessstabilität und damit zu einer unzureichenden Verarbeitungseignung für das FFF-Verfahren. Weiterhin zeigt sich, dass der Einfluss der verwendeten plättchenförmigen Füllstoffe für eine identische Kunststoffmatrix vergleichbar ist. Durch die Verwendung von Verarbeitungshilfen können die mechanischen Eigenschaften allerdings beeinflusst werden. Die Erhöhung des E-Moduls und der Bruchdehnung ist dabei auf die verbesserte Benetzung der Füllstoffpartikel und damit eine verbesserte Kunststoff-Füllstoff-Interaktion zurückzuführen. Bewertung der Wärmeleitfähigkeit Zur Darstellung der Ergebnisse der Wärmeleitfähigkeit wurden die Messergebnisse von je vier Probekörpern über die Prüftemperaturen zwischen 30 °C und 180 °C in 30 °C Inkrementen gemittelt (Bild 4). Die Ergebnisse zeigen eine positive Korrelation zwischen einem zunehmenden Füllstoffvolumenanteil und der Wärmeleitfähigkeit. Diese Steigerung ist wiederum abhängig von der jeweilig verwendeten Füllstoffart. Hierbei liefert das Material PBTx-F2-X eine vergleichbare Wärmeleitfähigkeit wie die Materialien PBTx-F1 und PBTxa-F1 in der jeweiligen Y-Orientierung. Die Unterschiede zwischen den beiden Materialien PBTx-F1 und PBTxa-F1 sind hingegen minimal und der Einfluss der Verarbeitungshilfe auf die Wärmeleitfähigkeit dementsprechend als vernachlässigbar anzusehen. Weiterhin ist eine anisotrope Wärmeleitfähigkeit für die mit Plättchen gefüllten Kunststoffe ersichtlich. Während die X-Orientierung (entlang der abgelegten Stränge) eine erhöhte Wärmeleitfähigkeit für alle Materialien liefert, ist diese für die Z-Orientierung (zwischen den Schichten) am geringsten. Gründe hierfür sind der Strangverbund sowie die Füllstofforientierung innerhalb der abgelegten Stränge. Dabei ist die aufgezeigte Anisotropie für den Füllstoff F2 im Vergleich zu F1 leicht reduziert und bestätigt den spezifischen Einfluss der Füllstoffart. Auf Basis der Ergebnisse können allgemein drei charakteristische Orientierungen zur Bewertung der Wärmeleitfähigkeit erfasst werden. Für die Bauteilauslegung ist der aufgezeigte Einfluss plättchenförmiger Füllstoffe auf die sich einstellende Anisotropie von im FFF-Verfahren gefertigten Strukturen zwingend zu beachten. Ausblick Die angeführten Untersuchungen zeigen, dass die Verwendung von plättchenförmigen Füllstoffen in Abhängigkeit von dem Füllstoffvolumenanteil zu einer Beeinflussung der Materialeigenschaften führt. Die dargelegten Ergebnisse stellen in diesem Kontext eine Grundlage zur Bewertung des Zusammenhangs zwischen den mechanischen Eigenschaften und der Wärmeleitfähigkeit dar. Insbesondere die Limitierung des Füllstoffvolumenanteils durch die erhöhte Versprödung ist hierbei anzuführen. Aktuelle Untersuchungen an der Kunststofftechnik Paderborn befassen sich mit der Betrachtung weiterer material- und prozessseitiger Einflussgrößen auf die Wärmeleitfähigkeit. Die generierten Daten sollen schließlich für die Entwicklung eines Modells zur Vorhersage der Wärmeleitfähigkeit von im FFF-Verfahren gefertigten Strukturen zusammengeführt werden.' author: - first_name: Elmar full_name: Moritzer, Elmar id: '20531' last_name: Moritzer - first_name: Christian Lennart full_name: Elsner, Christian Lennart id: '70729' last_name: Elsner - first_name: Maximilian Karl Franz full_name: Salm, Maximilian Karl Franz id: '57929' last_name: Salm citation: ama: Moritzer E, Elsner CL, Salm MKF. Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst. Plastverarbeiter. 2024;2024. apa: Moritzer, E., Elsner, C. L., & Salm, M. K. F. (2024). Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst. Plastverarbeiter, 2024. bibtex: '@article{Moritzer_Elsner_Salm_2024, title={Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst}, volume={2024}, journal={Plastverarbeiter}, author={Moritzer, Elmar and Elsner, Christian Lennart and Salm, Maximilian Karl Franz}, year={2024} }' chicago: Moritzer, Elmar, Christian Lennart Elsner, and Maximilian Karl Franz Salm. “Wie Der Füllstoffvolumenanteil Die Materialeigenschaften Beeinflusst.” Plastverarbeiter 2024 (2024). ieee: E. Moritzer, C. L. Elsner, and M. K. F. Salm, “Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst,” Plastverarbeiter, vol. 2024, 2024. mla: Moritzer, Elmar, et al. “Wie Der Füllstoffvolumenanteil Die Materialeigenschaften Beeinflusst.” Plastverarbeiter, vol. 2024, 2024. short: E. Moritzer, C.L. Elsner, M.K.F. Salm, Plastverarbeiter 2024 (2024). date_created: 2025-03-25T10:18:06Z date_updated: 2025-03-27T10:56:02Z department: - _id: '9' - _id: '321' - _id: '624' - _id: '367' intvolume: ' 2024' keyword: - Compoundieren - Fused Filament Fabrication language: - iso: eng publication: Plastverarbeiter status: public title: Wie der Füllstoffvolumenanteil die Materialeigenschaften beeinflusst type: journal_article user_id: '59363' volume: 2024 year: '2024' ... --- _id: '59135' abstract: - lang: eng text: Compounding is an important step in processing base polymers and is used to incorporate various additives into a polymer. For this purpose, different screw elements are used for dispersive and distributive mixing on a co-rotating twin-screw extruder. Optimising the screw configuration requires precise knowledge of the screw elements’ mixing properties, which have not been thoroughly investigated. This study analyses the mixing behaviour of individual screw elements regarding dispersive and distributive mixing using 3D CFD flow simulations with subsequent particle tracking. For distributive mixing, the particle distribution behind the screw elements in the XY plane is analysed and the mixing index MQ, which relates the standard deviation and the mean value of the triangular areas between the particles, is calculated. For dispersive mixing, the maximum shear stress on the particle path and the integral of the shear stress over the residence time of each individual particle are determined. The results show that screw element geometry and rotation speed have a significant influence on dispersive and distributive mixing. In addition, better dispersive mixing is achievable with highly viscous materials. These findings enable the optimisation of the mixing zone of a co-rotating twin-screw extruder for the efficient mixing of mineral fillers. author: - first_name: Jan Philipp full_name: Oldemeier, Jan Philipp id: '56781' last_name: Oldemeier - first_name: Volker full_name: Schöppner, Volker id: '20530' last_name: Schöppner citation: ama: Oldemeier JP, Schöppner V. Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking. Polymers. 2024;16(21). doi:10.3390/polym16212952 apa: Oldemeier, J. P., & Schöppner, V. (2024). Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking. Polymers, 16(21). https://doi.org/10.3390/polym16212952 bibtex: '@article{Oldemeier_Schöppner_2024, title={Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking}, volume={16}, DOI={10.3390/polym16212952}, number={21}, journal={Polymers}, author={Oldemeier, Jan Philipp and Schöppner, Volker}, year={2024} }' chicago: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking.” Polymers 16, no. 21 (2024). https://doi.org/10.3390/polym16212952. ieee: 'J. P. Oldemeier and V. Schöppner, “Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking,” Polymers, vol. 16, no. 21, 2024, doi: 10.3390/polym16212952.' mla: Oldemeier, Jan Philipp, and Volker Schöppner. “Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking.” Polymers, vol. 16, no. 21, 2024, doi:10.3390/polym16212952. short: J.P. Oldemeier, V. Schöppner, Polymers 16 (2024). date_created: 2025-03-25T10:19:50Z date_updated: 2025-03-27T12:56:35Z department: - _id: '9' - _id: '321' - _id: '367' doi: 10.3390/polym16212952 intvolume: ' 16' issue: '21' keyword: - Compoundieren - disperses Mischen - distributives Mischen - Schneckenelemente language: - iso: eng publication: Polymers quality_controlled: '1' status: public title: Analysis of the Dispersive and Distributive Mixing Effect of Screw Elements on the Co-Rotating Twin-Screw Extruder with Particle Tracking type: journal_article user_id: '59363' volume: 16 year: '2024' ... --- _id: '59269' abstract: - lang: eng text: Ferroelectric materials play a crucial role in a broad range of technologies due to their unique properties that are deeply connected to the pattern and behavior of their ferroelectric (FE) domains. Chief among them, barium titanate (BaTiO3; BTO) sees widespread applications such as in electronics but equally is a ferroelectric model system for fundamental research, e.g., to study the interplay of such FE domains, the domain walls (DWs), and their macroscopic properties, owed to BTO’s multiple and experimentally accessible phase transitions. Here, we employ Second Harmonic Generation Microscopy (SHGM) to in situ investigate the cubic-to-tetragonal (at ∼126°C) and the tetragonal-to-orthorhombic (at ∼5°C) phase transition in single-crystalline BTO via three-dimensional (3D) DW mapping. We demonstrate that SHGM imaging provides the direct visualization of FE domain switching as well as the domain dynamics in 3D, shedding light on the interplay of the domain structure and phase transition. These results allow us to extract the different transition temperatures locally, to unveil the hysteresis behavior, and to determine the type of phase transition at play (first/second order) from the recorded SHGM data. The capabilities of SHGM in uncovering these crucial phenomena can easily be applied to other ferroelectrics to provide new possibilities for in situ engineering of advanced ferroic devices. article_number: '154102' article_type: original author: - first_name: Benjamin full_name: Kirbus, Benjamin last_name: Kirbus - first_name: Samuel D. full_name: Seddon, Samuel D. last_name: Seddon - first_name: Iuliia full_name: Kiseleva, Iuliia last_name: Kiseleva - first_name: Elke full_name: Beyreuther, Elke last_name: Beyreuther - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng citation: ama: Kirbus B, Seddon SD, Kiseleva I, Beyreuther E, Rüsing M, Eng LM. Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy. Journal of Applied Physics. 2024;136(15). doi:10.1063/5.0237769 apa: Kirbus, B., Seddon, S. D., Kiseleva, I., Beyreuther, E., Rüsing, M., & Eng, L. M. (2024). Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy. Journal of Applied Physics, 136(15), Article 154102. https://doi.org/10.1063/5.0237769 bibtex: '@article{Kirbus_Seddon_Kiseleva_Beyreuther_Rüsing_Eng_2024, title={Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy}, volume={136}, DOI={10.1063/5.0237769}, number={15154102}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Kirbus, Benjamin and Seddon, Samuel D. and Kiseleva, Iuliia and Beyreuther, Elke and Rüsing, Michael and Eng, Lukas M.}, year={2024} }' chicago: Kirbus, Benjamin, Samuel D. Seddon, Iuliia Kiseleva, Elke Beyreuther, Michael Rüsing, and Lukas M. Eng. “Probing Ferroelectric Phase Transitions in Barium Titanate Single Crystals via In-Situ Second Harmonic Generation Microscopy.” Journal of Applied Physics 136, no. 15 (2024). https://doi.org/10.1063/5.0237769. ieee: 'B. Kirbus, S. D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, and L. M. Eng, “Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy,” Journal of Applied Physics, vol. 136, no. 15, Art. no. 154102, 2024, doi: 10.1063/5.0237769.' mla: Kirbus, Benjamin, et al. “Probing Ferroelectric Phase Transitions in Barium Titanate Single Crystals via In-Situ Second Harmonic Generation Microscopy.” Journal of Applied Physics, vol. 136, no. 15, 154102, AIP Publishing, 2024, doi:10.1063/5.0237769. short: B. Kirbus, S.D. Seddon, I. Kiseleva, E. Beyreuther, M. Rüsing, L.M. Eng, Journal of Applied Physics 136 (2024). date_created: 2025-04-02T15:57:11Z date_updated: 2025-04-02T15:59:55Z department: - _id: '15' - _id: '623' - _id: '288' doi: 10.1063/5.0237769 intvolume: ' 136' issue: '15' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.1063/5.0237769' oa: '1' publication: Journal of Applied Physics publication_identifier: issn: - 0021-8979 - 1089-7550 publication_status: published publisher: AIP Publishing quality_controlled: '1' status: public title: Probing ferroelectric phase transitions in barium titanate single crystals via in-situ second harmonic generation microscopy type: journal_article user_id: '22501' volume: 136 year: '2024' ... --- _id: '59273' abstract: - lang: eng text: Ferroelectric domain walls (DWs) are promising structures for assembling future nano-electronic circuit elements on a larger scale since reporting domain wall currents of up to 1 mA per single DW. One key requirement hereto is their reproducible manufacturing by gaining preparative control over domain size and domain wall conductivity (DWC). To date, most works on DWC have focused on exploring the fundamental electrical properties of individual DWs within single-shot experiments, with an emphasis on quantifying the origins of DWC. Very few reports exist when it comes to comparing the DWC properties between two separate DWs, and literally nothing exists where issues of reproducibility in DWC devices have been addressed. To fill this gap while facing the challenge of finding guidelines for achieving predictable DWC performance, we report on a procedure that allows us to reproducibly prepare single hexagonal domains of a predefined diameter into uniaxial ferroelectric lithium niobate single crystals of 200 and 300 μm thickness, respectively. We show that the domain diameter can be controlled with an uncertainty of a few percent. As-grown DWs are then subjected to a standard procedure of current-limited high-voltage DWC enhancement, and they repetitively reach a DWC increase of six orders of magnitude. While all resulting DWs show significantly enhanced DWC values, their individual current–voltage (I–V) characteristics exhibit different shapes, which can be explained by variations in their 3D real structure reflecting local heterogeneities by defects, DW pinning, and surface-near DW inclination. article_type: original author: - first_name: Julius full_name: Ratzenberger, Julius last_name: Ratzenberger - first_name: Iuliia full_name: Kiseleva, Iuliia last_name: Kiseleva - first_name: Boris full_name: Koppitz, Boris last_name: Koppitz - first_name: Elke full_name: Beyreuther, Elke last_name: Beyreuther - first_name: Manuel full_name: Zahn, Manuel last_name: Zahn - first_name: Joshua full_name: Gössel, Joshua last_name: Gössel - first_name: Peter A. full_name: Hegarty, Peter A. last_name: Hegarty - first_name: Zeeshan H. full_name: Amber, Zeeshan H. last_name: Amber - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng citation: ama: Ratzenberger J, Kiseleva I, Koppitz B, et al. Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals. Journal of Applied Physics. 2024;136(10):104302. doi:10.1063/5.0219300 apa: Ratzenberger, J., Kiseleva, I., Koppitz, B., Beyreuther, E., Zahn, M., Gössel, J., Hegarty, P. A., Amber, Z. H., Rüsing, M., & Eng, L. M. (2024). Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals. Journal of Applied Physics, 136(10), 104302. https://doi.org/10.1063/5.0219300 bibtex: '@article{Ratzenberger_Kiseleva_Koppitz_Beyreuther_Zahn_Gössel_Hegarty_Amber_Rüsing_Eng_2024, title={Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals}, volume={136}, DOI={10.1063/5.0219300}, number={10}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Ratzenberger, Julius and Kiseleva, Iuliia and Koppitz, Boris and Beyreuther, Elke and Zahn, Manuel and Gössel, Joshua and Hegarty, Peter A. and Amber, Zeeshan H. and Rüsing, Michael and Eng, Lukas M.}, year={2024}, pages={104302} }' chicago: 'Ratzenberger, Julius, Iuliia Kiseleva, Boris Koppitz, Elke Beyreuther, Manuel Zahn, Joshua Gössel, Peter A. Hegarty, Zeeshan H. Amber, Michael Rüsing, and Lukas M. Eng. “Toward the Reproducible Fabrication of Conductive Ferroelectric Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal of Applied Physics 136, no. 10 (2024): 104302. https://doi.org/10.1063/5.0219300.' ieee: 'J. Ratzenberger et al., “Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals,” Journal of Applied Physics, vol. 136, no. 10, p. 104302, 2024, doi: 10.1063/5.0219300.' mla: Ratzenberger, Julius, et al. “Toward the Reproducible Fabrication of Conductive Ferroelectric Domain Walls into Lithium Niobate Bulk Single Crystals.” Journal of Applied Physics, vol. 136, no. 10, AIP Publishing, 2024, p. 104302, doi:10.1063/5.0219300. short: J. Ratzenberger, I. Kiseleva, B. Koppitz, E. Beyreuther, M. Zahn, J. Gössel, P.A. Hegarty, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied Physics 136 (2024) 104302. date_created: 2025-04-02T16:12:29Z date_updated: 2025-04-02T16:14:31Z department: - _id: '288' - _id: '15' - _id: '623' doi: 10.1063/5.0219300 intvolume: ' 136' issue: '10' language: - iso: eng main_file_link: - open_access: '1' url: ' https://doi.org/10.1063/5.0219300' oa: '1' page: '104302' publication: Journal of Applied Physics publication_identifier: issn: - 0021-8979 - 1089-7550 publication_status: published publisher: AIP Publishing quality_controlled: '1' status: public title: Toward the reproducible fabrication of conductive ferroelectric domain walls into lithium niobate bulk single crystals type: journal_article user_id: '22501' volume: 136 year: '2024' ... --- _id: '54966' abstract: - lang: eng text: Piezoresponse force microscopy (PFM) is one of the most widespread methods for investigating and visualizing ferroelectric domain structures down to the nanometer length scale. PFM makes use of the direct coupling of the piezoelectric response to the crystal lattice, and hence, it is most often applied to spatially map the three-dimensional (3D) near-surface domain distribution of any polar or ferroic sample. Nonetheless, since most samples investigated by PFM are at least semiconducting or fully insulating, the electric ac field emerging from the conductive scanning force microscopy (SFM) tip penetrates the sample and, hence, may also couple to polar features that are deeply buried into the bulk of the sample under investigation. Thus, in the work presented here, we experimentally and theoretically explore the contrast and depth resolution capabilities of PFM, by analyzing the dependence of several key parameters. These key parameters include the depth of the buried feature, i.e., here a domain wall (DW), as well as PFM-relevant technical parameters such as the tip radius, the PFM drive voltage and frequency, and the signal-to-noise ratio. The theoretical predictions are experimentally verified using x-cut periodically poled lithium niobate single crystals that are specially prepared into wedge-shaped samples, in order to allow the buried feature, here the DW, to be “positioned” at any depth into the bulk. This inspection essentially contributes to the fundamental understanding in PFM contrast analysis and to the reconstruction of 3D domain structures down to a 1 μm-penetration depth into the sample. article_type: original author: - first_name: Matthias full_name: Roeper, Matthias last_name: Roeper - first_name: Samuel D. full_name: Seddon, Samuel D. last_name: Seddon - first_name: Zeeshan H. full_name: Amber, Zeeshan H. last_name: Amber - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng citation: ama: Roeper M, Seddon SD, Amber ZH, Rüsing M, Eng LM. Depth resolution in piezoresponse force microscopy. Journal of Applied Physics. 2024;135(22). doi:10.1063/5.0206784 apa: Roeper, M., Seddon, S. D., Amber, Z. H., Rüsing, M., & Eng, L. M. (2024). Depth resolution in piezoresponse force microscopy. Journal of Applied Physics, 135(22). https://doi.org/10.1063/5.0206784 bibtex: '@article{Roeper_Seddon_Amber_Rüsing_Eng_2024, title={Depth resolution in piezoresponse force microscopy}, volume={135}, DOI={10.1063/5.0206784}, number={22}, journal={Journal of Applied Physics}, publisher={AIP Publishing}, author={Roeper, Matthias and Seddon, Samuel D. and Amber, Zeeshan H. and Rüsing, Michael and Eng, Lukas M.}, year={2024} }' chicago: Roeper, Matthias, Samuel D. Seddon, Zeeshan H. Amber, Michael Rüsing, and Lukas M. Eng. “Depth Resolution in Piezoresponse Force Microscopy.” Journal of Applied Physics 135, no. 22 (2024). https://doi.org/10.1063/5.0206784. ieee: 'M. Roeper, S. D. Seddon, Z. H. Amber, M. Rüsing, and L. M. Eng, “Depth resolution in piezoresponse force microscopy,” Journal of Applied Physics, vol. 135, no. 22, 2024, doi: 10.1063/5.0206784.' mla: Roeper, Matthias, et al. “Depth Resolution in Piezoresponse Force Microscopy.” Journal of Applied Physics, vol. 135, no. 22, AIP Publishing, 2024, doi:10.1063/5.0206784. short: M. Roeper, S.D. Seddon, Z.H. Amber, M. Rüsing, L.M. Eng, Journal of Applied Physics 135 (2024). date_created: 2024-07-01T21:00:43Z date_updated: 2025-04-03T12:35:34Z department: - _id: '15' - _id: '169' - _id: '288' - _id: '623' doi: 10.1063/5.0206784 intvolume: ' 135' issue: '22' keyword: - Ferroelectrics - lithium niobate - piezoresponse force microscopy language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1063/5.0206784 oa: '1' publication: Journal of Applied Physics publication_identifier: issn: - 0021-8979 - 1089-7550 publication_status: published publisher: AIP Publishing quality_controlled: '1' status: public title: Depth resolution in piezoresponse force microscopy type: journal_article user_id: '22501' volume: 135 year: '2024' ... --- _id: '60413' author: - first_name: David full_name: Bartlitz, David id: '104560' last_name: Bartlitz orcid: '0000-0003-2967-8299 ' citation: ama: Bartlitz D. Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22. Zeitschrift für Wirtschaftsrecht (ZIP). 2024;(12):616-617. apa: Bartlitz, D. (2024). Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22. Zeitschrift für Wirtschaftsrecht (ZIP), 12, 616–617. bibtex: '@article{Bartlitz_2024, title={Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22}, number={12}, journal={Zeitschrift für Wirtschaftsrecht (ZIP)}, author={Bartlitz, David}, year={2024}, pages={616–617} }' chicago: 'Bartlitz, David. “Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22.” Zeitschrift für Wirtschaftsrecht (ZIP), no. 12 (2024): 616–17.' ieee: D. Bartlitz, “Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22,” Zeitschrift für Wirtschaftsrecht (ZIP), no. 12, pp. 616–617, 2024. mla: Bartlitz, David. “Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22.” Zeitschrift für Wirtschaftsrecht (ZIP), no. 12, 2024, pp. 616–17. short: D. Bartlitz, Zeitschrift für Wirtschaftsrecht (ZIP) (2024) 616–617. date_created: 2025-06-26T09:42:09Z date_updated: 2025-06-26T09:43:51Z department: - _id: '845' issue: '12' language: - iso: ger main_file_link: - url: https://www.juris.de/perma?d=jzs-ZIP-2024-12-004-616 page: 616-617 publication: Zeitschrift für Wirtschaftsrecht (ZIP) publication_status: published status: public title: Keine negativen Zinsen bei Berechnung der Vorfälligkeitsentschädigung. Anmerkung zu OLG Nürnberg, Urt. v. 25. 7. 2023 - 14 U 2764/22 type: journal_article user_id: '95606' year: '2024' ... --- _id: '60418' abstract: - lang: eng text: 'Das Themenheft präsentiert forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. Die COVID-19-Pandemie führte zu einer grundlegenden Umgestaltung der Hochschullehre und wirkte als Katalysator für die Gestaltung digital unterstützender Innovationen in der Hochschullehre. Unter dem Schlagwort postdigiale Hochschullehre beschäftigten sich die vorliegenden Beiträge der dghd-Tagung 2022 mit diesem veränderten Lehren und Lernen. ' citation: ama: Neiske I, Trier U, Osthushenrich J, Weber T, eds. Transformationen. Forschende Und Strategische Perspektiven Auf Eine Postdigitale Hochschullehre. Vol 10.; 2024. doi:10.3278/HSLT2402W apa: Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre. (2024). In I. Neiske, U. Trier, J. Osthushenrich, & T. Weber (Eds.), die hochschullehre (Vol. 10). https://doi.org/10.3278/HSLT2402W bibtex: '@book{Neiske_Trier_Osthushenrich_Weber_2024, title={Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre}, volume={10}, DOI={10.3278/HSLT2402W}, journal={die hochschullehre}, year={2024} }' chicago: Neiske, Iris, Ulrike Trier, Judith Osthushenrich, and Tassja Weber, eds. Transformationen. Forschende Und Strategische Perspektiven Auf Eine Postdigitale Hochschullehre. Die Hochschullehre. Vol. 10, 2024. https://doi.org/10.3278/HSLT2402W. ieee: I. Neiske, U. Trier, J. Osthushenrich, and T. Weber, Eds., Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre, vol. 10. 2024. mla: Neiske, Iris, et al., editors. “Transformationen. Forschende Und Strategische Perspektiven Auf Eine Postdigitale Hochschullehre.” Die Hochschullehre, vol. 10, 2024, doi:10.3278/HSLT2402W. short: I. Neiske, U. Trier, J. Osthushenrich, T. Weber, eds., Transformationen. Forschende Und Strategische Perspektiven Auf Eine Postdigitale Hochschullehre, 2024. conference: name: ' 22. Jahrestagung der Deutschen Gesellschaft für Hochschuldidaktik' date_created: 2025-06-26T10:47:32Z date_updated: 2025-06-26T10:55:38Z doi: 10.3278/HSLT2402W editor: - first_name: Iris full_name: Neiske, Iris id: '53827' last_name: Neiske - first_name: Ulrike full_name: Trier, Ulrike id: '82117' last_name: Trier - first_name: Judith full_name: Osthushenrich, Judith id: '12360' last_name: Osthushenrich - first_name: Tassja full_name: Weber, Tassja id: '89571' last_name: Weber intvolume: ' 10' language: - iso: eng main_file_link: - open_access: '1' url: https://www.wbv.de/shop/Transformationen.-Forschende-und-strategische-Perspektiven-auf-eine-postdigitale-Hochschullehre-HSLT2402W oa: '1' publication: die hochschullehre status: public title: Transformationen. Forschende und strategische Perspektiven auf eine postdigitale Hochschullehre type: journal_editor user_id: '12360' volume: 10 year: '2024' ... --- _id: '60314' abstract: - lang: eng text: A method for the construction of bijective volumetric maps between 3D shapes is presented. Arbitrary shapes of ball-topology are supported, overcoming restrictions of previous methods to convex or star-shaped targets. In essence, the mapping problem is decomposed into a set of simpler mapping problems, each of which can be solved with previous methods for discrete star-shaped mapping problems. Addressing the key challenges in this endeavor, algorithms are described to reliably construct structurally compatible partitions of two shapes with constraints regarding star-shapedness and to compute a parsimonious common refinement of two triangulations. author: - first_name: Steffen full_name: Hinderink, Steffen id: '116615' last_name: Hinderink - first_name: Hendrik full_name: Brückler, Hendrik id: '115694' last_name: Brückler - first_name: Marcel full_name: Campen, Marcel id: '114904' last_name: Campen orcid: 0000-0003-2340-3462 citation: ama: Hinderink S, Brückler H, Campen M. Bijective Volumetric Mapping via Star Decomposition. ACM Transactions on Graphics. 2024;43(6):1-11. doi:10.1145/3687950 apa: Hinderink, S., Brückler, H., & Campen, M. (2024). Bijective Volumetric Mapping via Star Decomposition. ACM Transactions on Graphics, 43(6), 1–11. https://doi.org/10.1145/3687950 bibtex: '@article{Hinderink_Brückler_Campen_2024, title={Bijective Volumetric Mapping via Star Decomposition}, volume={43}, DOI={10.1145/3687950}, number={6}, journal={ACM Transactions on Graphics}, publisher={Association for Computing Machinery (ACM)}, author={Hinderink, Steffen and Brückler, Hendrik and Campen, Marcel}, year={2024}, pages={1–11} }' chicago: 'Hinderink, Steffen, Hendrik Brückler, and Marcel Campen. “Bijective Volumetric Mapping via Star Decomposition.” ACM Transactions on Graphics 43, no. 6 (2024): 1–11. https://doi.org/10.1145/3687950.' ieee: 'S. Hinderink, H. Brückler, and M. Campen, “Bijective Volumetric Mapping via Star Decomposition,” ACM Transactions on Graphics, vol. 43, no. 6, pp. 1–11, 2024, doi: 10.1145/3687950.' mla: Hinderink, Steffen, et al. “Bijective Volumetric Mapping via Star Decomposition.” ACM Transactions on Graphics, vol. 43, no. 6, Association for Computing Machinery (ACM), 2024, pp. 1–11, doi:10.1145/3687950. short: S. Hinderink, H. Brückler, M. Campen, ACM Transactions on Graphics 43 (2024) 1–11. date_created: 2025-06-23T09:09:51Z date_updated: 2025-07-14T12:33:54Z department: - _id: '969' doi: 10.1145/3687950 extern: '1' intvolume: ' 43' issue: '6' language: - iso: eng page: 1-11 publication: ACM Transactions on Graphics publication_identifier: issn: - 0730-0301 - 1557-7368 publication_status: published publisher: Association for Computing Machinery (ACM) status: public title: Bijective Volumetric Mapping via Star Decomposition type: journal_article user_id: '117512' volume: 43 year: '2024' ... --- _id: '52346' abstract: - lang: eng text: Promising cathode materials for fluoride-ion batteries (FIBs) are 3d transition metal containing oxides with Ruddlesden-Popper-type structure. So far, multi-elemental compositions were not investigated, but could alternate electrochemical performance similar to what has been found for cathode materials for lithium-ion batteries. Within this study, we investigate RP type La2Ni0.75Co0.25O4.08 as an intercalation-based active cathode material for all-solid-state FIBs. We determine the structural changes of La2Ni0.75Co0.25O4.08 during fluoride intercalation / de-intercalation by ex-situ X-ray diffraction, which showed that F- insertion leads to transformation of the parent phase to three different phases. Changes in Ni and Co oxidation states and coordination environment were examined by X-ray absorption spectroscopy and magnetic measurements in order to understand the complex reaction behaviour of the phases in detail, showing that the two transition metals behave differently in the charging and discharging process. Under optimized operating conditions, a cycle life of 120 cycles at a critical cut-off capacity of 40 mAh g-1 against Pb/PbF2 was obtained, which is one of the highest observed for intercalation electrode materials in FIBs so far. The average Coulombic efficiencies ranged from 85% to 90%. Thus, La2Ni0.75Co0.25O4.08 could be a promising candidate for cycling-stable high-energy cathode materials for all-solid-state FIBs author: - first_name: Vanita full_name: Vanita, Vanita last_name: Vanita - first_name: Aamir Iqbal full_name: Waidha, Aamir Iqbal last_name: Waidha - first_name: Sami full_name: Vasala, Sami last_name: Vasala - first_name: Pascal full_name: Puphal, Pascal last_name: Puphal - first_name: Roland full_name: Schoch, Roland id: '48467' last_name: Schoch orcid: 0000-0003-2061-7289 - first_name: Pieter full_name: Glatzel, Pieter last_name: Glatzel - first_name: Matthias full_name: Bauer, Matthias id: '47241' last_name: Bauer orcid: 0000-0002-9294-6076 - first_name: Oliver full_name: Clemens, Oliver last_name: Clemens citation: ama: Vanita V, Waidha AI, Vasala S, et al. Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries. Journal of Materials Chemistry A. 2024;(12). doi:10.1039/d4ta00704b apa: Vanita, V., Waidha, A. I., Vasala, S., Puphal, P., Schoch, R., Glatzel, P., Bauer, M., & Clemens, O. (2024). Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries. Journal of Materials Chemistry A, 12. https://doi.org/10.1039/d4ta00704b bibtex: '@article{Vanita_Waidha_Vasala_Puphal_Schoch_Glatzel_Bauer_Clemens_2024, title={Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries}, DOI={10.1039/d4ta00704b}, number={12}, journal={Journal of Materials Chemistry A}, publisher={Royal Society of Chemistry (RSC)}, author={Vanita, Vanita and Waidha, Aamir Iqbal and Vasala, Sami and Puphal, Pascal and Schoch, Roland and Glatzel, Pieter and Bauer, Matthias and Clemens, Oliver}, year={2024} }' chicago: Vanita, Vanita, Aamir Iqbal Waidha, Sami Vasala, Pascal Puphal, Roland Schoch, Pieter Glatzel, Matthias Bauer, and Oliver Clemens. “Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for All-Solid-State Fluoride Ion Batteries.” Journal of Materials Chemistry A, no. 12 (2024). https://doi.org/10.1039/d4ta00704b. ieee: 'V. Vanita et al., “Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries,” Journal of Materials Chemistry A, no. 12, 2024, doi: 10.1039/d4ta00704b.' mla: Vanita, Vanita, et al. “Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for All-Solid-State Fluoride Ion Batteries.” Journal of Materials Chemistry A, no. 12, Royal Society of Chemistry (RSC), 2024, doi:10.1039/d4ta00704b. short: V. Vanita, A.I. Waidha, S. Vasala, P. Puphal, R. Schoch, P. Glatzel, M. Bauer, O. Clemens, Journal of Materials Chemistry A (2024). date_created: 2024-03-07T10:01:09Z date_updated: 2025-08-15T12:50:31Z department: - _id: '306' doi: 10.1039/d4ta00704b issue: '12' keyword: - Xray language: - iso: eng publication: Journal of Materials Chemistry A publication_identifier: issn: - 2050-7488 - 2050-7496 publication_status: published publisher: Royal Society of Chemistry (RSC) status: public title: Insights into the First Multi-Transition-Metal Containing Ruddlesden Popper-Type Cathode for all-solid-state Fluoride Ion Batteries type: journal_article user_id: '48467' year: '2024' ... --- _id: '65592' author: - first_name: Karina full_name: Pauls, Karina id: '78235' last_name: Pauls - first_name: Thomas full_name: Musehold, Thomas last_name: Musehold citation: ama: 'Pauls K, Musehold T. 3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch. In: Pauls K, ed. Schnittstelle Kunstunterricht: Skulptur - Material - Prozess. ; 2024.' apa: 'Pauls, K., & Musehold, T. (2024). 3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch. In K. Pauls (Ed.), Schnittstelle Kunstunterricht: Skulptur - Material - Prozess.' bibtex: '@inbook{Pauls_Musehold_2024, title={3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch}, booktitle={Schnittstelle Kunstunterricht: Skulptur - Material - Prozess}, author={Pauls, Karina and Musehold, Thomas}, editor={Pauls, Karina}, year={2024} }' chicago: 'Pauls, Karina, and Thomas Musehold. “3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch.” In Schnittstelle Kunstunterricht: Skulptur - Material - Prozess, edited by Karina Pauls, 2024.' ieee: 'K. Pauls and T. Musehold, “3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch,” in Schnittstelle Kunstunterricht: Skulptur - Material - Prozess, K. Pauls, Ed. 2024.' mla: 'Pauls, Karina, and Thomas Musehold. “3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch.” Schnittstelle Kunstunterricht: Skulptur - Material - Prozess, edited by Karina Pauls, 2024.' short: 'K. Pauls, T. Musehold, in: K. Pauls (Ed.), Schnittstelle Kunstunterricht: Skulptur - Material - Prozess, 2024.' date_created: 2026-05-08T12:57:17Z date_updated: 2026-05-08T12:57:33Z editor: - first_name: Karina full_name: Pauls, Karina last_name: Pauls language: - iso: ger publication: 'Schnittstelle Kunstunterricht: Skulptur - Material - Prozess' publication_identifier: isbn: - '9783763977253' publication_status: published status: public title: 3D-Druck in Kunst und Lehre - Thomas Musehold und Karina Pauls im Gespräch type: book_chapter user_id: '78235' year: '2024' ... --- _id: '59585' abstract: - lang: eng text: Similar to bulk metal forming, clinch joining is characterised by large plastic deformations and a variety of different 3D stress states, including severe compression. However, inherent to plastic forming is the nucleation and growth of defects, whose detrimental effects on the material behaviour can be described by continuum damage models and eventually lead to material failure. As the damage evolution strongly depends on the stress state, a stress-state-dependent model is utilised to correctly track the accumulation. To formulate and parameterise this model, besides classical experiments, so-called modified punch tests are also integrated herein to enhance the calibration of the failure model by capturing a larger range of stress states and metal-forming-specific loading conditions. Moreover, when highly ductile materials are considered, such as the dual-phase steel HCT590X and the aluminium alloy EN AW-6014 T4 investigated here, strong necking and localisation might occur prior to fracture. This can alter the stress state and affect the actual strain at failure. This influence is captured by coupling plasticity and damage to incorporate the damage-induced softening effect. Its relative importance is shown by conducting inverse parameter identifications to determine damage and failure parameters for both mentioned ductile metals based on up to 12 different experiments. article_number: '157' author: - first_name: Johannes full_name: Friedlein, Johannes last_name: Friedlein - first_name: Max full_name: Böhnke, Max id: '45779' last_name: Böhnke - first_name: Malte Christian full_name: Schlichter, Malte Christian id: '61977' last_name: Schlichter - first_name: Mathias full_name: Bobbert, Mathias id: '7850' last_name: Bobbert - first_name: Gerson full_name: Meschut, Gerson id: '32056' last_name: Meschut orcid: 0000-0002-2763-1246 - first_name: Julia full_name: Mergheim, Julia last_name: Mergheim - first_name: Paul full_name: Steinmann, Paul last_name: Steinmann citation: ama: Friedlein J, Böhnke M, Schlichter MC, et al. Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing and Materials Processing. 2024;8(4). doi:10.3390/jmmp8040157 apa: Friedlein, J., Böhnke, M., Schlichter, M. C., Bobbert, M., Meschut, G., Mergheim, J., & Steinmann, P. (2024). Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining. Journal of Manufacturing and Materials Processing, 8(4), Article 157. https://doi.org/10.3390/jmmp8040157 bibtex: '@article{Friedlein_Böhnke_Schlichter_Bobbert_Meschut_Mergheim_Steinmann_2024, title={Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining}, volume={8}, DOI={10.3390/jmmp8040157}, number={4157}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Friedlein, Johannes and Böhnke, Max and Schlichter, Malte Christian and Bobbert, Mathias and Meschut, Gerson and Mergheim, Julia and Steinmann, Paul}, year={2024} }' chicago: Friedlein, Johannes, Max Böhnke, Malte Christian Schlichter, Mathias Bobbert, Gerson Meschut, Julia Mergheim, and Paul Steinmann. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing and Materials Processing 8, no. 4 (2024). https://doi.org/10.3390/jmmp8040157. ieee: 'J. Friedlein et al., “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining,” Journal of Manufacturing and Materials Processing, vol. 8, no. 4, Art. no. 157, 2024, doi: 10.3390/jmmp8040157.' mla: Friedlein, Johannes, et al. “Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining.” Journal of Manufacturing and Materials Processing, vol. 8, no. 4, 157, MDPI AG, 2024, doi:10.3390/jmmp8040157. short: J. Friedlein, M. Böhnke, M.C. Schlichter, M. Bobbert, G. Meschut, J. Mergheim, P. Steinmann, Journal of Manufacturing and Materials Processing 8 (2024). date_created: 2025-04-15T11:07:52Z date_updated: 2026-05-13T13:53:29Z department: - _id: '157' doi: 10.3390/jmmp8040157 intvolume: ' 8' issue: '4' language: - iso: eng project: - _id: '131' name: 'TRR 285 - A: TRR 285 - Project Area A' - _id: '135' name: 'TRR 285 – A01: TRR 285 - Subproject A01' - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' publication: Journal of Manufacturing and Materials Processing publication_identifier: issn: - 2504-4494 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Material Parameter Identification for a Stress-State-Dependent Ductile Damage and Failure Model Applied to Clinch Joining type: journal_article user_id: '61977' volume: 8 year: '2024' ... --- _id: '47992' abstract: - lang: eng text: Ferroelectric domain boundaries are quasi-two-dimensional functional interfaces with high prospects for nanoelectronic applications. Despite their reduced dimensionality, they can exhibit complex non-Ising polarization configurations and unexpected physical properties. Here, the impact of the three-dimensional (3D) curvature on the polarization profile of nominally uncharged 180° domain walls in LiNbO3 is studied using second-harmonic generation microscopy and 3D polarimetry analysis. Correlations between the domain-wall curvature and the variation of its internal polarization unfold in the form of modulations of the Néel-like character, which we attribute to the flexoelectric effect. While the Néel-like character originates mainly from the tilting of the domain wall, the internal polarization adjusts its orientation due to the synergetic upshot of dipolar and monopolar bound charges and their variation with the 3D curvature. Our results show that curved interfaces in solid crystals may offer a rich playground for tailoring nanoscale polar states. article_type: original author: - first_name: Ulises full_name: Acevedo-Salas, Ulises last_name: Acevedo-Salas - first_name: Boris full_name: Croes, Boris last_name: Croes - first_name: Yide full_name: Zhang, Yide last_name: Zhang - first_name: Olivier full_name: Cregut, Olivier last_name: Cregut - first_name: Kokou Dodzi full_name: Dorkenoo, Kokou Dodzi last_name: Dorkenoo - first_name: Benjamin full_name: Kirbus, Benjamin last_name: Kirbus - first_name: Ekta full_name: Singh, Ekta last_name: Singh - first_name: Henrik full_name: Beccard, Henrik last_name: Beccard - first_name: Michael full_name: Rüsing, Michael id: '22501' last_name: Rüsing orcid: 0000-0003-4682-4577 - first_name: Lukas M. full_name: Eng, Lukas M. last_name: Eng - first_name: Riccardo full_name: Hertel, Riccardo last_name: Hertel - first_name: Eugene A. full_name: Eliseev, Eugene A. last_name: Eliseev - first_name: Anna N. full_name: Morozovska, Anna N. last_name: Morozovska - first_name: Salia full_name: Cherifi-Hertel, Salia last_name: Cherifi-Hertel citation: ama: Acevedo-Salas U, Croes B, Zhang Y, et al. Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls. Nano Letters. 2023;23(3):795-803. doi:10.1021/acs.nanolett.2c03579 apa: Acevedo-Salas, U., Croes, B., Zhang, Y., Cregut, O., Dorkenoo, K. D., Kirbus, B., Singh, E., Beccard, H., Rüsing, M., Eng, L. M., Hertel, R., Eliseev, E. A., Morozovska, A. N., & Cherifi-Hertel, S. (2023). Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls. Nano Letters, 23(3), 795–803. https://doi.org/10.1021/acs.nanolett.2c03579 bibtex: '@article{Acevedo-Salas_Croes_Zhang_Cregut_Dorkenoo_Kirbus_Singh_Beccard_Rüsing_Eng_et al._2023, title={Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls}, volume={23}, DOI={10.1021/acs.nanolett.2c03579}, number={3}, journal={Nano Letters}, publisher={American Chemical Society (ACS)}, author={Acevedo-Salas, Ulises and Croes, Boris and Zhang, Yide and Cregut, Olivier and Dorkenoo, Kokou Dodzi and Kirbus, Benjamin and Singh, Ekta and Beccard, Henrik and Rüsing, Michael and Eng, Lukas M. and et al.}, year={2023}, pages={795–803} }' chicago: 'Acevedo-Salas, Ulises, Boris Croes, Yide Zhang, Olivier Cregut, Kokou Dodzi Dorkenoo, Benjamin Kirbus, Ekta Singh, et al. “Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls.” Nano Letters 23, no. 3 (2023): 795–803. https://doi.org/10.1021/acs.nanolett.2c03579.' ieee: 'U. Acevedo-Salas et al., “Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls,” Nano Letters, vol. 23, no. 3, pp. 795–803, 2023, doi: 10.1021/acs.nanolett.2c03579.' mla: Acevedo-Salas, Ulises, et al. “Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls.” Nano Letters, vol. 23, no. 3, American Chemical Society (ACS), 2023, pp. 795–803, doi:10.1021/acs.nanolett.2c03579. short: U. Acevedo-Salas, B. Croes, Y. Zhang, O. Cregut, K.D. Dorkenoo, B. Kirbus, E. Singh, H. Beccard, M. Rüsing, L.M. Eng, R. Hertel, E.A. Eliseev, A.N. Morozovska, S. Cherifi-Hertel, Nano Letters 23 (2023) 795–803. date_created: 2023-10-11T09:06:05Z date_updated: 2023-10-11T09:06:31Z doi: 10.1021/acs.nanolett.2c03579 extern: '1' intvolume: ' 23' issue: '3' keyword: - Mechanical Engineering - Condensed Matter Physics - General Materials Science - General Chemistry - Bioengineering language: - iso: eng page: 795-803 publication: Nano Letters publication_identifier: issn: - 1530-6984 - 1530-6992 publication_status: published publisher: American Chemical Society (ACS) quality_controlled: '1' status: public title: Impact of 3D Curvature on the Polarization Orientation in Non-Ising Domain Walls type: journal_article user_id: '22501' volume: 23 year: '2023' ...