--- _id: '61834' abstract: - lang: eng text: Abstract3D printing or additive manufacturing (AM) possesses enormous potential to benefit the manufacturing industry. Presently, rotary draw bending (RDB) is one of the most commonly used cold-forming industrial process for bending metal tubes. Pressure die is a fundamental forming tool in RDB processes, and it is conventionally made by various grades of comparatively expensive alloy steels. This research presents a novel design of a pressure die which can be 3D printed by using inexpensive polymeric filaments. In this research paper, the 3D-printed pressure die is named as “FFF-pressure die.” The material used to fabricate the FFF-pressure die is a thermoplastic polymer known as “ecoPLA.” The mechanical properties of ecoPLA are studied in relation to the process conditions of a RDB process. Firstly, an initial feasibility of using the FFF-pressure die in a RDB process is obtained by conducting a quick static stress analysis with actual process conditions. After initial feasibility, a complete RDB process is developed and simulated with actual process conditions and material properties. The FFF-pressure die is then practically fabricated by FFF 3D printer and experimentally tested on an industrial RDB machine. The results of practical experiments are compared with the simulation results. In order to make a comparison of the FFF-pressure die with the conventional metal pressure die, the simulation and practical process is also conducted with the conventional metal pressure die. A performance and cost comparison is made between the polymeric FFF-pressure die and the conventional metal pressure die. Von Mises stresses, contact forces, failure risk, and elastic deformations are analyzed. The advantages and limitations of using the FFF-pressure die in a RDB process are discussed in the end. This research intends to widen the avenue of using cost-effective and lightweight forming tools in metal forming industries. author: - first_name: Muhammad Ali full_name: Kaleem, Muhammad Ali last_name: Kaleem - first_name: Rainer full_name: Steinheimer, Rainer last_name: Steinheimer - first_name: Peter full_name: Frohn-Sörensen, Peter last_name: Frohn-Sörensen - first_name: Steffen full_name: Gabsa, Steffen id: '106786' last_name: Gabsa - first_name: Bernd full_name: Engel, Bernd last_name: Engel citation: ama: Kaleem MA, Steinheimer R, Frohn-Sörensen P, Gabsa S, Engel B. Additive manufacturing of polymeric pressure die for rotary draw bending process. The International Journal of Advanced Manufacturing Technology. 2024;134(3-4):1789-1804. doi:10.1007/s00170-024-14221-3 apa: Kaleem, M. A., Steinheimer, R., Frohn-Sörensen, P., Gabsa, S., & Engel, B. (2024). Additive manufacturing of polymeric pressure die for rotary draw bending process. The International Journal of Advanced Manufacturing Technology, 134(3–4), 1789–1804. https://doi.org/10.1007/s00170-024-14221-3 bibtex: '@article{Kaleem_Steinheimer_Frohn-Sörensen_Gabsa_Engel_2024, title={Additive manufacturing of polymeric pressure die for rotary draw bending process}, volume={134}, DOI={10.1007/s00170-024-14221-3}, number={3–4}, journal={The International Journal of Advanced Manufacturing Technology}, publisher={Springer Science and Business Media LLC}, author={Kaleem, Muhammad Ali and Steinheimer, Rainer and Frohn-Sörensen, Peter and Gabsa, Steffen and Engel, Bernd}, year={2024}, pages={1789–1804} }' chicago: 'Kaleem, Muhammad Ali, Rainer Steinheimer, Peter Frohn-Sörensen, Steffen Gabsa, and Bernd Engel. “Additive Manufacturing of Polymeric Pressure Die for Rotary Draw Bending Process.” The International Journal of Advanced Manufacturing Technology 134, no. 3–4 (2024): 1789–1804. https://doi.org/10.1007/s00170-024-14221-3.' ieee: 'M. A. Kaleem, R. Steinheimer, P. Frohn-Sörensen, S. Gabsa, and B. Engel, “Additive manufacturing of polymeric pressure die for rotary draw bending process,” The International Journal of Advanced Manufacturing Technology, vol. 134, no. 3–4, pp. 1789–1804, 2024, doi: 10.1007/s00170-024-14221-3.' mla: Kaleem, Muhammad Ali, et al. “Additive Manufacturing of Polymeric Pressure Die for Rotary Draw Bending Process.” The International Journal of Advanced Manufacturing Technology, vol. 134, no. 3–4, Springer Science and Business Media LLC, 2024, pp. 1789–804, doi:10.1007/s00170-024-14221-3. short: M.A. Kaleem, R. Steinheimer, P. Frohn-Sörensen, S. Gabsa, B. Engel, The International Journal of Advanced Manufacturing Technology 134 (2024) 1789–1804. date_created: 2025-10-15T09:02:15Z date_updated: 2025-10-15T13:08:16Z doi: 10.1007/s00170-024-14221-3 intvolume: ' 134' issue: 3-4 language: - iso: eng page: 1789-1804 publication: The International Journal of Advanced Manufacturing Technology publication_identifier: issn: - 0268-3768 - 1433-3015 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Additive manufacturing of polymeric pressure die for rotary draw bending process type: journal_article user_id: '106786' volume: 134 year: '2024' ... --- _id: '62067' abstract: - lang: eng text: Most FPGA boards in the HPC domain are well-suited for parallel scaling because of the direct integration of versatile and high-throughput network ports. However, the utilization of their network capabilities is often challenging and error-prone because the whole network stack and communication patterns have to be implemented and managed on the FPGAs. Also, this approach conceptually involves a trade-off between the performance potential of improved communication and the impact of resource consumption for communication infrastructure, since the utilized resources on the FPGAs could otherwise be used for computations. In this work, we investigate this trade-off, firstly, by using synthetic benchmarks to evaluate the different configuration options of the communication framework ACCL and their impact on communication latency and throughput. Finally, we use our findings to implement a shallow water simulation whose scalability heavily depends on low-latency communication. With a suitable configuration of ACCL, good scaling behavior can be shown to all 48 FPGAs installed in the system. Overall, the results show that the availability of inter-FPGA communication frameworks as well as the configurability of framework and network stack are crucial to achieve the best application performance with low latency communication. author: - first_name: Marius full_name: Meyer, Marius id: '40778' last_name: Meyer - first_name: Tobias full_name: Kenter, Tobias id: '3145' last_name: Kenter - first_name: Lucian full_name: Petrica, Lucian last_name: Petrica - first_name: Kenneth full_name: O’Brien, Kenneth last_name: O’Brien - first_name: Michaela full_name: Blott, Michaela last_name: Blott - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 citation: ama: 'Meyer M, Kenter T, Petrica L, O’Brien K, Blott M, Plessl C. Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL. In: Lecture Notes in Computer Science. Springer Nature Switzerland; 2024. doi:10.1007/978-3-031-69766-1_9' apa: Meyer, M., Kenter, T., Petrica, L., O’Brien, K., Blott, M., & Plessl, C. (2024). Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL. In Lecture Notes in Computer Science. Springer Nature Switzerland. https://doi.org/10.1007/978-3-031-69766-1_9 bibtex: '@inbook{Meyer_Kenter_Petrica_O’Brien_Blott_Plessl_2024, place={Cham}, title={Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL}, DOI={10.1007/978-3-031-69766-1_9}, booktitle={Lecture Notes in Computer Science}, publisher={Springer Nature Switzerland}, author={Meyer, Marius and Kenter, Tobias and Petrica, Lucian and O’Brien, Kenneth and Blott, Michaela and Plessl, Christian}, year={2024} }' chicago: 'Meyer, Marius, Tobias Kenter, Lucian Petrica, Kenneth O’Brien, Michaela Blott, and Christian Plessl. “Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL.” In Lecture Notes in Computer Science. Cham: Springer Nature Switzerland, 2024. https://doi.org/10.1007/978-3-031-69766-1_9.' ieee: 'M. Meyer, T. Kenter, L. Petrica, K. O’Brien, M. Blott, and C. Plessl, “Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL,” in Lecture Notes in Computer Science, Cham: Springer Nature Switzerland, 2024.' mla: Meyer, Marius, et al. “Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL.” Lecture Notes in Computer Science, Springer Nature Switzerland, 2024, doi:10.1007/978-3-031-69766-1_9. short: 'M. Meyer, T. Kenter, L. Petrica, K. O’Brien, M. Blott, C. Plessl, in: Lecture Notes in Computer Science, Springer Nature Switzerland, Cham, 2024.' date_created: 2025-11-04T09:50:24Z date_updated: 2025-11-04T09:51:22Z department: - _id: '27' - _id: '518' doi: 10.1007/978-3-031-69766-1_9 language: - iso: eng main_file_link: - open_access: '1' oa: '1' place: Cham project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Lecture Notes in Computer Science publication_identifier: isbn: - '9783031697654' - '9783031697661' issn: - 0302-9743 - 1611-3349 publication_status: published publisher: Springer Nature Switzerland quality_controlled: '1' status: public title: Optimizing Communication for Latency Sensitive HPC Applications on up to 48 FPGAs Using ACCL type: book_chapter user_id: '3145' year: '2024' ... --- _id: '54784' author: - first_name: Thomas full_name: Janzen, Thomas id: '89329' last_name: Janzen orcid: 0009-0003-1941-166X - first_name: Christoph full_name: Vogelsang, Christoph id: '4245' last_name: Vogelsang orcid: 0000-0002-5804-1855 - first_name: Dominik full_name: Rumlich, Dominik id: '76026' last_name: Rumlich orcid: 0000-0001-8682-450X citation: ama: 'Janzen T, Vogelsang C, Rumlich D. Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte. In: Gerlach D, ed. Wissen, Können und Handeln von Fremdsprachenlehrpersonen. Lang; 2024:221-234.' apa: 'Janzen, T., Vogelsang, C., & Rumlich, D. (2024). Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte. In D. Gerlach (Ed.), Wissen, Können und Handeln von Fremdsprachenlehrpersonen (pp. 221–234). Lang.' bibtex: '@inbook{Janzen_Vogelsang_Rumlich_2024, title={Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte}, booktitle={Wissen, Können und Handeln von Fremdsprachenlehrpersonen}, publisher={Lang}, author={Janzen, Thomas and Vogelsang, Christoph and Rumlich, Dominik}, editor={Gerlach, David}, year={2024}, pages={221–234} }' chicago: 'Janzen, Thomas, Christoph Vogelsang, and Dominik Rumlich. “Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte.” In Wissen, Können und Handeln von Fremdsprachenlehrpersonen, edited by David Gerlach, 221–34. Lang, 2024.' ieee: 'T. Janzen, C. Vogelsang, and D. Rumlich, “Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte,” in Wissen, Können und Handeln von Fremdsprachenlehrpersonen, D. Gerlach, Ed. Lang, 2024, pp. 221–234.' mla: 'Janzen, Thomas, et al. “Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte.” Wissen, Können und Handeln von Fremdsprachenlehrpersonen, edited by David Gerlach, Lang, 2024, pp. 221–34.' short: 'T. Janzen, C. Vogelsang, D. Rumlich, in: D. Gerlach (Ed.), Wissen, Können und Handeln von Fremdsprachenlehrpersonen, Lang, 2024, pp. 221–234.' date_created: 2024-06-17T09:46:13Z date_updated: 2025-12-03T08:56:48Z department: - _id: '33' - _id: '376' editor: - first_name: David full_name: Gerlach, David last_name: Gerlach language: - iso: ger page: 221-234 publication: Wissen, Können und Handeln von Fremdsprachenlehrpersonen publication_identifier: unknown: - 978-3-631-90410-7 publisher: Lang quality_controlled: '1' status: public title: 'Feedbackkompetenz handlungsnah prüfen: Die Entwicklung einer rollenspielbasierten Simulation als Prüfungsformat für angehende Englischlehrkräfte' type: book_chapter user_id: '4245' year: '2024' ... --- _id: '62852' author: - first_name: Samuel full_name: Gyger, Samuel last_name: Gyger - first_name: Max full_name: Tao, Max last_name: Tao - first_name: Marco full_name: Colangelo, Marco last_name: Colangelo - first_name: Ian full_name: Christen, Ian last_name: Christen - first_name: Hugo full_name: Larocque, Hugo last_name: Larocque - first_name: Julian full_name: Zichi, Julian last_name: Zichi - first_name: Lucas full_name: Schweickert, Lucas last_name: Schweickert - first_name: Ali full_name: Elshaari, Ali last_name: Elshaari - first_name: Stephan full_name: Steinhauer, Stephan last_name: Steinhauer - first_name: Saimon full_name: Covre da Silva, Saimon last_name: Covre da Silva - first_name: Armando full_name: Rastelli, Armando last_name: Rastelli - first_name: Hamed full_name: Sattari, Hamed last_name: Sattari - first_name: Gregory full_name: Chong, Gregory last_name: Chong - first_name: Yves full_name: Pétremand, Yves last_name: Pétremand - first_name: Ivan full_name: Prieto, Ivan last_name: Prieto - first_name: Yang full_name: Yu, Yang last_name: Yu - first_name: Amir full_name: Ghadimi, Amir last_name: Ghadimi - first_name: Dirk full_name: Englund, Dirk last_name: Englund - first_name: Klaus full_name: Jöns, Klaus id: '85353' last_name: Jöns - first_name: Val full_name: Zwiller, Val last_name: Zwiller - first_name: Carlos full_name: Errando Herranz, Carlos last_name: Errando Herranz citation: ama: 'Gyger S, Tao M, Colangelo M, et al. Integrating superconducting single-photon detectors into active photonic circuits. In: Hemmer PR, Migdall AL, eds. Quantum Computing, Communication, and Simulation IV. SPIE; 2024. doi:10.1117/12.3009736' apa: Gyger, S., Tao, M., Colangelo, M., Christen, I., Larocque, H., Zichi, J., Schweickert, L., Elshaari, A., Steinhauer, S., Covre da Silva, S., Rastelli, A., Sattari, H., Chong, G., Pétremand, Y., Prieto, I., Yu, Y., Ghadimi, A., Englund, D., Jöns, K., … Errando Herranz, C. (2024). Integrating superconducting single-photon detectors into active photonic circuits. In P. R. Hemmer & A. L. Migdall (Eds.), Quantum Computing, Communication, and Simulation IV. SPIE. https://doi.org/10.1117/12.3009736 bibtex: '@inproceedings{Gyger_Tao_Colangelo_Christen_Larocque_Zichi_Schweickert_Elshaari_Steinhauer_Covre da Silva_et al._2024, title={Integrating superconducting single-photon detectors into active photonic circuits}, DOI={10.1117/12.3009736}, booktitle={Quantum Computing, Communication, and Simulation IV}, publisher={SPIE}, author={Gyger, Samuel and Tao, Max and Colangelo, Marco and Christen, Ian and Larocque, Hugo and Zichi, Julian and Schweickert, Lucas and Elshaari, Ali and Steinhauer, Stephan and Covre da Silva, Saimon and et al.}, editor={Hemmer, Philip R. and Migdall, Alan L.}, year={2024} }' chicago: Gyger, Samuel, Max Tao, Marco Colangelo, Ian Christen, Hugo Larocque, Julian Zichi, Lucas Schweickert, et al. “Integrating Superconducting Single-Photon Detectors into Active Photonic Circuits.” In Quantum Computing, Communication, and Simulation IV, edited by Philip R. Hemmer and Alan L. Migdall. SPIE, 2024. https://doi.org/10.1117/12.3009736. ieee: 'S. Gyger et al., “Integrating superconducting single-photon detectors into active photonic circuits,” in Quantum Computing, Communication, and Simulation IV, 2024, doi: 10.1117/12.3009736.' mla: Gyger, Samuel, et al. “Integrating Superconducting Single-Photon Detectors into Active Photonic Circuits.” Quantum Computing, Communication, and Simulation IV, edited by Philip R. Hemmer and Alan L. Migdall, SPIE, 2024, doi:10.1117/12.3009736. short: 'S. Gyger, M. Tao, M. Colangelo, I. Christen, H. Larocque, J. Zichi, L. Schweickert, A. Elshaari, S. Steinhauer, S. Covre da Silva, A. Rastelli, H. Sattari, G. Chong, Y. Pétremand, I. Prieto, Y. Yu, A. Ghadimi, D. Englund, K. Jöns, V. Zwiller, C. Errando Herranz, in: P.R. Hemmer, A.L. Migdall (Eds.), Quantum Computing, Communication, and Simulation IV, SPIE, 2024.' date_created: 2025-12-04T12:07:37Z date_updated: 2025-12-04T12:24:04Z department: - _id: '623' doi: 10.1117/12.3009736 editor: - first_name: Philip R. full_name: Hemmer, Philip R. last_name: Hemmer - first_name: Alan L. full_name: Migdall, Alan L. last_name: Migdall language: - iso: eng publication: Quantum Computing, Communication, and Simulation IV publication_status: published publisher: SPIE status: public title: Integrating superconducting single-photon detectors into active photonic circuits type: conference user_id: '48188' year: '2024' ... --- _id: '62873' abstract: - lang: eng text: AbstractVapor phase infiltration (VPI) has emerged as a promising tool for fabrication of novel hybrid materials. In the field of polymeric gas separation membranes, a beneficial impact on stability and membrane performance is known for several polymers with differing functional groups. This study for the first time investigates VPI of trimethylaluminum (TMA) into poly(1‐trimethylsilyl‐1‐propyne) (PTMSP), featuring a carbon–carbon double bond as functional group. Saturation of the precursor inside the polymer is already attained after 60 s infiltration time leading to significant densification of the material. Depth profiling proves accumulation of aluminum in the polymer itself, but a significantly increased accumulation is visible in the gradient layer between polymer and SiO2 substrate. A reaction pathway is proposed and supplemented by density‐functional theory (DFT) calculations. Infrared spectra derived from both experiments and simulation support the presented reaction pathway. In terms of permeance, a favorable impact on selectivity is observed for infiltration times up to 1 s. Longer infiltration times yield greatly reduced permeance values close or even below the detection limit of the measurement device. The present results of this study set a strong basis for the application of VPI on polymers for gas‐barrier and membrane applications in the future. article_number: '2400171' author: - first_name: Jonathan full_name: Jenderny, Jonathan last_name: Jenderny - first_name: Nils full_name: Boysen, Nils last_name: Boysen - first_name: Jens full_name: Rubner, Jens last_name: Rubner - first_name: Frederik full_name: Zysk, Frederik last_name: Zysk - first_name: Florian full_name: Preischel, Florian last_name: Preischel - first_name: Maria Teresa full_name: de los Arcos de Pedro, Maria Teresa id: '54556' last_name: de los Arcos de Pedro orcid: '0000-0002-8684-273X ' - first_name: Varun Raj full_name: Damerla, Varun Raj last_name: Damerla - first_name: Aleksander full_name: Kostka, Aleksander last_name: Kostka - first_name: Jonas full_name: Franke, Jonas last_name: Franke - first_name: Rainer full_name: Dahlmann, Rainer last_name: Dahlmann - first_name: Thomas D. full_name: Kühne, Thomas D. last_name: Kühne - first_name: Matthias full_name: Wessling, Matthias last_name: Wessling - first_name: Peter full_name: Awakowicz, Peter last_name: Awakowicz - first_name: Anjana full_name: Devi, Anjana last_name: Devi citation: ama: Jenderny J, Boysen N, Rubner J, et al. Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum. Advanced Materials Interfaces. 2024;11(28). doi:10.1002/admi.202400171 apa: Jenderny, J., Boysen, N., Rubner, J., Zysk, F., Preischel, F., de los Arcos de Pedro, M. T., Damerla, V. R., Kostka, A., Franke, J., Dahlmann, R., Kühne, T. D., Wessling, M., Awakowicz, P., & Devi, A. (2024). Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum. Advanced Materials Interfaces, 11(28), Article 2400171. https://doi.org/10.1002/admi.202400171 bibtex: '@article{Jenderny_Boysen_Rubner_Zysk_Preischel_de los Arcos de Pedro_Damerla_Kostka_Franke_Dahlmann_et al._2024, title={Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum}, volume={11}, DOI={10.1002/admi.202400171}, number={282400171}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Jenderny, Jonathan and Boysen, Nils and Rubner, Jens and Zysk, Frederik and Preischel, Florian and de los Arcos de Pedro, Maria Teresa and Damerla, Varun Raj and Kostka, Aleksander and Franke, Jonas and Dahlmann, Rainer and et al.}, year={2024} }' chicago: Jenderny, Jonathan, Nils Boysen, Jens Rubner, Frederik Zysk, Florian Preischel, Maria Teresa de los Arcos de Pedro, Varun Raj Damerla, et al. “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum.” Advanced Materials Interfaces 11, no. 28 (2024). https://doi.org/10.1002/admi.202400171. ieee: 'J. Jenderny et al., “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum,” Advanced Materials Interfaces, vol. 11, no. 28, Art. no. 2400171, 2024, doi: 10.1002/admi.202400171.' mla: Jenderny, Jonathan, et al. “Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum.” Advanced Materials Interfaces, vol. 11, no. 28, 2400171, Wiley, 2024, doi:10.1002/admi.202400171. short: J. Jenderny, N. Boysen, J. Rubner, F. Zysk, F. Preischel, M.T. de los Arcos de Pedro, V.R. Damerla, A. Kostka, J. Franke, R. Dahlmann, T.D. Kühne, M. Wessling, P. Awakowicz, A. Devi, Advanced Materials Interfaces 11 (2024). date_created: 2025-12-04T13:07:52Z date_updated: 2025-12-04T13:12:49Z department: - _id: '302' doi: 10.1002/admi.202400171 intvolume: ' 11' issue: '28' language: - iso: eng publication: Advanced Materials Interfaces publication_identifier: issn: - 2196-7350 - 2196-7350 publication_status: published publisher: Wiley status: public title: Tuning the Permeation Properties of Poly(1‐trimethylsilyl‐1‐propyne) by Vapor Phase Infiltration Using Trimethylaluminum type: journal_article user_id: '54556' volume: 11 year: '2024' ... --- _id: '62942' abstract: - lang: eng text: AbstractNanostructured bilayer thin films with superhydrophobic and superhydrophilic surfaces were prepared using Ti6Al4V alloy substrates which allowed for the comparative analysis of polyvinyl acetate (PVAc) particle adsorption as a function of the interface structure. The PVAc particles were obtained from emulsion polymerization of vinyl acetate. A superhydrophilic TiO2 nanofiber-based 3D network was created on the Ti6Al4V alloy substrate by application of a hydrothermal method. Subsequent UV-grafting of ultra-thin polydimethylsiloxane (PDMS) layers resulted in a superhydrophobic surface. The modification steps were followed via Diffuse Reflectance Infrared Fourier Transform Spectroscopy, X-ray Photoelectron Spectroscopy, Field Emission-Scanning Electron Microscopy, contact angle and Electrochemical Impedance Spectroscopy. A mechanism for the adsorption of PVAc at the two electrolyte/substrate interfaces could be revealed. article_number: '294' author: - first_name: Vanessa full_name: Neßlinger, Vanessa id: '54649' last_name: Neßlinger orcid: 0000-0001-9416-1646 - first_name: Jan full_name: Atlanov, Jan last_name: Atlanov - first_name: Guido full_name: Grundmeier, Guido id: '194' last_name: Grundmeier citation: ama: Neßlinger V, Atlanov J, Grundmeier G. Interactions of polyvinyl acetate dispersions with nanostructured superhydrophilic and superhydrophobic Ti6Al4V alloy surfaces. Discover Applied Sciences. 2024;6(6). doi:10.1007/s42452-024-05916-z apa: Neßlinger, V., Atlanov, J., & Grundmeier, G. (2024). Interactions of polyvinyl acetate dispersions with nanostructured superhydrophilic and superhydrophobic Ti6Al4V alloy surfaces. Discover Applied Sciences, 6(6), Article 294. https://doi.org/10.1007/s42452-024-05916-z bibtex: '@article{Neßlinger_Atlanov_Grundmeier_2024, title={Interactions of polyvinyl acetate dispersions with nanostructured superhydrophilic and superhydrophobic Ti6Al4V alloy surfaces}, volume={6}, DOI={10.1007/s42452-024-05916-z}, number={6294}, journal={Discover Applied Sciences}, publisher={Springer Science and Business Media LLC}, author={Neßlinger, Vanessa and Atlanov, Jan and Grundmeier, Guido}, year={2024} }' chicago: Neßlinger, Vanessa, Jan Atlanov, and Guido Grundmeier. “Interactions of Polyvinyl Acetate Dispersions with Nanostructured Superhydrophilic and Superhydrophobic Ti6Al4V Alloy Surfaces.” Discover Applied Sciences 6, no. 6 (2024). https://doi.org/10.1007/s42452-024-05916-z. ieee: 'V. Neßlinger, J. Atlanov, and G. Grundmeier, “Interactions of polyvinyl acetate dispersions with nanostructured superhydrophilic and superhydrophobic Ti6Al4V alloy surfaces,” Discover Applied Sciences, vol. 6, no. 6, Art. no. 294, 2024, doi: 10.1007/s42452-024-05916-z.' mla: Neßlinger, Vanessa, et al. “Interactions of Polyvinyl Acetate Dispersions with Nanostructured Superhydrophilic and Superhydrophobic Ti6Al4V Alloy Surfaces.” Discover Applied Sciences, vol. 6, no. 6, 294, Springer Science and Business Media LLC, 2024, doi:10.1007/s42452-024-05916-z. short: V. Neßlinger, J. Atlanov, G. Grundmeier, Discover Applied Sciences 6 (2024). date_created: 2025-12-08T08:32:26Z date_updated: 2025-12-08T08:33:00Z department: - _id: '302' doi: 10.1007/s42452-024-05916-z intvolume: ' 6' issue: '6' language: - iso: eng project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Discover Applied Sciences publication_identifier: issn: - 3004-9261 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Interactions of polyvinyl acetate dispersions with nanostructured superhydrophilic and superhydrophobic Ti6Al4V alloy surfaces type: journal_article user_id: '54649' volume: 6 year: '2024' ... --- _id: '56777' abstract: - lang: eng text: The estimation of accurate piezoelectric material parameters is a fundamental prerequisite for simulation-driven design of piezoelectric actuators and sensors. Previous studies show that a full set of material parameters can be determined in an inverse procedure using a single disc-shaped specimen with an electrode structured for increased sensitivity with respect to all material parameters. However, in the case of high-power actuator applications, ring-shaped piezoelectric components are often employed, necessitating an adaptation of the previously developed method. The alteration in geometry introduces some advantages. Accordingly, there is no longer any requirement to modify the electrode structure in order to enhance sensitivity. The method to estimate the material parameters presented here consists of a total of three stages. An initial, approximate estimation of the material parameters is determined using analytical approximations for the resonance frequencies from the IEEE standard. These values are optimised in an inverse procedure that employs analytic expressions for the electrical impedance of piezoelectric rings as the forward model. Further refinement is achieved by using Finite Element (FE) simulations as the forward model again in an inverse procedure. The method is applied to electrical impedance measurement data, yielding material parameters for hard piezoelectric rings. The result shows a good agreement between the simulation and measurement results, indicating realistic material parameter values. author: - first_name: Olga full_name: Friesen, Olga id: '44026' last_name: Friesen - first_name: Leander full_name: Claes, Leander id: '11829' last_name: Claes orcid: 0000-0002-4393-268X - first_name: Nadine full_name: Feldmann, Nadine id: '23082' last_name: Feldmann - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning citation: ama: Friesen O, Claes L, Feldmann N, Henning B. Estimation of piezoelectric material parameters of ring-shaped specimens. tm - Technisches Messen. Published online 2024. doi:https://doi.org/10.1515/teme-2024-0107 apa: Friesen, O., Claes, L., Feldmann, N., & Henning, B. (2024). Estimation of piezoelectric material parameters of ring-shaped specimens. Tm - Technisches Messen. https://doi.org/10.1515/teme-2024-0107 bibtex: '@article{Friesen_Claes_Feldmann_Henning_2024, title={Estimation of piezoelectric material parameters of ring-shaped specimens}, DOI={https://doi.org/10.1515/teme-2024-0107}, journal={tm - Technisches Messen}, publisher={De Gruyter}, author={Friesen, Olga and Claes, Leander and Feldmann, Nadine and Henning, Bernd}, year={2024} }' chicago: Friesen, Olga, Leander Claes, Nadine Feldmann, and Bernd Henning. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” Tm - Technisches Messen, 2024. https://doi.org/10.1515/teme-2024-0107. ieee: 'O. Friesen, L. Claes, N. Feldmann, and B. Henning, “Estimation of piezoelectric material parameters of ring-shaped specimens,” tm - Technisches Messen, 2024, doi: https://doi.org/10.1515/teme-2024-0107.' mla: Friesen, Olga, et al. “Estimation of Piezoelectric Material Parameters of Ring-Shaped Specimens.” Tm - Technisches Messen, De Gruyter, 2024, doi:https://doi.org/10.1515/teme-2024-0107. short: O. Friesen, L. Claes, N. Feldmann, B. Henning, Tm - Technisches Messen (2024). date_created: 2024-10-29T09:07:00Z date_updated: 2026-01-05T07:59:24Z department: - _id: '49' doi: https://doi.org/10.1515/teme-2024-0107 language: - iso: eng project: - _id: '245' name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)' publication: tm - Technisches Messen publication_identifier: issn: - 2196-7113 publication_status: published publisher: De Gruyter status: public title: Estimation of piezoelectric material parameters of ring-shaped specimens type: journal_article user_id: '11829' year: '2024' ... --- _id: '63497' author: - first_name: Nikolas full_name: Förster, Nikolas last_name: Förster - first_name: Oliver full_name: Wallscheid, Oliver last_name: Wallscheid - first_name: Frank full_name: Schafmeister, Frank last_name: Schafmeister citation: ama: 'Förster N, Wallscheid O, Schafmeister F. Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection. In: 2024 IEEE Design Methodologies Conference (DMC). ; 2024:1-8. doi:10.1109/DMC62632.2024.10812131' apa: Förster, N., Wallscheid, O., & Schafmeister, F. (2024). Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection. 2024 IEEE Design Methodologies Conference (DMC), 1–8. https://doi.org/10.1109/DMC62632.2024.10812131 bibtex: '@inproceedings{Förster_Wallscheid_Schafmeister_2024, title={Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection}, DOI={10.1109/DMC62632.2024.10812131}, booktitle={2024 IEEE Design Methodologies Conference (DMC)}, author={Förster, Nikolas and Wallscheid, Oliver and Schafmeister, Frank}, year={2024}, pages={1–8} }' chicago: Förster, Nikolas, Oliver Wallscheid, and Frank Schafmeister. “Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection.” In 2024 IEEE Design Methodologies Conference (DMC), 1–8, 2024. https://doi.org/10.1109/DMC62632.2024.10812131. ieee: 'N. Förster, O. Wallscheid, and F. Schafmeister, “Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection,” in 2024 IEEE Design Methodologies Conference (DMC), 2024, pp. 1–8, doi: 10.1109/DMC62632.2024.10812131.' mla: Förster, Nikolas, et al. “Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection.” 2024 IEEE Design Methodologies Conference (DMC), 2024, pp. 1–8, doi:10.1109/DMC62632.2024.10812131. short: 'N. Förster, O. Wallscheid, F. Schafmeister, in: 2024 IEEE Design Methodologies Conference (DMC), 2024, pp. 1–8.' date_created: 2026-01-06T08:06:24Z date_updated: 2026-01-06T08:07:50Z department: - _id: '52' doi: 10.1109/DMC62632.2024.10812131 keyword: - MOSFET - Thermal resistance - Surface resistance - Bridge circuits - Zero voltage switching - Pareto optimization - Capacitance - Numerical simulation - Optimization - Resistance heating - Pareto Optimization - Dual-Active Bridge - ZVS - Inductor Optimization - Transformer Optimization - Heat Sink Optimization language: - iso: eng page: 1-8 publication: 2024 IEEE Design Methodologies Conference (DMC) status: public title: Dual-Active Bridge Sequential Pareto Optimization for Fast Pre-Design and Final Component Selection type: conference user_id: '83383' year: '2024' ... --- _id: '57176' abstract: - lang: eng text: Incremental nonlinear dynamic inversion (INDI) is a widely used approach to controlling UAVs with highly nonlinear dynamics. One key element of INDI-based controllers is the control allocation realizing pseudo controls using available actuators. However, the tracking of commanded pseudo controls is not the only objective considered during control allocation. Since the approach only works locally due to linearization and the solution is often ambiguous, additional aspects like control efforts or penalizing the deviation of certain states must be considered. Conducting the control allocation by solving a quadratic program this results in a considerable number of weighting parameters, which must be tuned during control design. Currently, this is conducted manually and is therefore time consuming. An automated approach for tuning these parameters is therefore highly beneficial. Thus, this paper presents and evaluates a model-based approach automatically tuning the control allocation parameters of a tiltrotor VTOL using an optimization algorithm. This optimization algorithm searches for optimal parameters minimizing a cost functional that reflects the design target. This cost functional is calculated based on a test mission for the VTOL which is conducted within a simulation environment. The test mission represents the common operating range of the VTOL. The simulation environment consists of an aircraft model as well as a model of the INDI-based controller which is dependent on the control allocation parameters. On this basis, model-based optimization is conducted and the optimal parameters are identified. Finally, successful real-world tests on a 4-degrees-of-freedom testbench using the identified parameters are presented. Since the control allocation parameters can significantly influence the aircraft’s stability, the 4-DOF testbench for the aircraft is required for rapid validation of the parameters at a minimum amount of risk. article_number: '187' author: - first_name: Mark full_name: Henkenjohann, Mark last_name: Henkenjohann - first_name: Udo full_name: Nolte, Udo last_name: Nolte - first_name: Fabian full_name: Sion, Fabian last_name: Sion - first_name: Christian full_name: Henke, Christian last_name: Henke - first_name: Ansgar full_name: Trächtler, Ansgar id: '552' last_name: Trächtler citation: ama: Henkenjohann M, Nolte U, Sion F, Henke C, Trächtler A. Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers. Actuators. 2024;13(5). doi:10.3390/act13050187 apa: Henkenjohann, M., Nolte, U., Sion, F., Henke, C., & Trächtler, A. (2024). Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers. Actuators, 13(5), Article 187. https://doi.org/10.3390/act13050187 bibtex: '@article{Henkenjohann_Nolte_Sion_Henke_Trächtler_2024, title={Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers}, volume={13}, DOI={10.3390/act13050187}, number={5187}, journal={Actuators}, publisher={MDPI AG}, author={Henkenjohann, Mark and Nolte, Udo and Sion, Fabian and Henke, Christian and Trächtler, Ansgar}, year={2024} }' chicago: Henkenjohann, Mark, Udo Nolte, Fabian Sion, Christian Henke, and Ansgar Trächtler. “Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers.” Actuators 13, no. 5 (2024). https://doi.org/10.3390/act13050187. ieee: 'M. Henkenjohann, U. Nolte, F. Sion, C. Henke, and A. Trächtler, “Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers,” Actuators, vol. 13, no. 5, Art. no. 187, 2024, doi: 10.3390/act13050187.' mla: Henkenjohann, Mark, et al. “Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers.” Actuators, vol. 13, no. 5, 187, MDPI AG, 2024, doi:10.3390/act13050187. short: M. Henkenjohann, U. Nolte, F. Sion, C. Henke, A. Trächtler, Actuators 13 (2024). date_created: 2024-11-18T10:09:58Z date_updated: 2024-11-18T10:42:19Z department: - _id: '153' - _id: '241' doi: 10.3390/act13050187 intvolume: ' 13' issue: '5' language: - iso: eng publication: Actuators publication_identifier: issn: - 2076-0825 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: Parameter Tuning Approach for Incremental Nonlinear Dynamic Inversion-Based Flight Controllers type: journal_article user_id: '41470' volume: 13 year: '2024' ... --- _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: '57111' author: - first_name: Martin Miroslavov full_name: Mihaylov, Martin Miroslavov id: '42449' last_name: Mihaylov - first_name: Christian full_name: Kress, Christian id: '13256' last_name: Kress - first_name: J. Christoph full_name: Scheytt, J. Christoph id: '37144' last_name: Scheytt orcid: '0000-0002-5950-6618 ' citation: ama: 'Mihaylov MM, Kress C, Scheytt JC. Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications. In: ; 2024.' apa: Mihaylov, M. M., Kress, C., & Scheytt, J. C. (2024). Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications. Quantum Photonics Spotlight , Paderborn. bibtex: '@inproceedings{Mihaylov_Kress_Scheytt_2024, title={Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications}, author={Mihaylov, Martin Miroslavov and Kress, Christian and Scheytt, J. Christoph}, year={2024} }' chicago: Mihaylov, Martin Miroslavov, Christian Kress, and J. Christoph Scheytt. “Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications,” 2024. ieee: M. M. Mihaylov, C. Kress, and J. C. Scheytt, “Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications,” presented at the Quantum Photonics Spotlight , Paderborn, 2024. mla: Mihaylov, Martin Miroslavov, et al. Simulation and Optimization of Low-Loss Photonic Coupling  Structures for TFLN Integrated Circuits for Quantum Applications. 2024. short: 'M.M. Mihaylov, C. Kress, J.C. Scheytt, in: 2024.' conference: end_date: 2024,10,10 location: Paderborn name: 'Quantum Photonics Spotlight ' start_date: 2024,10,08 date_created: 2024-11-15T13:47:10Z date_updated: 2024-11-15T14:01:51Z department: - _id: '58' - _id: '623' language: - iso: eng status: public title: Simulation and Optimization of Low-Loss Photonic Coupling Structures for TFLN Integrated Circuits for Quantum Applications type: conference_abstract user_id: '42449' 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: '57528' abstract: - lang: eng text: Based on the surface equivalence principle an equivalent near-field source can be determined by measurements with a near-field scanner. One application is to use the source to simulate the interferences of the device-under-test with other objects in its close environment. Due to a limited signal-to-noise ratio in practical applications, noise adds to the near-field source. Hence, noise effects affect the quality of the simulation results and cause uncertainties. The influence of the noise effects is investigated by a simulative approach with artificially added noise. Two test devices with different a geometric dimension, operating frequency and excited power are evaluated for different characteristics and signal-to-noise ratios to assess the impact of the simulation results. Finally, in a combined simulation an equivalent near-field source will disturb an IoT-device and the voltages at two resistors on the device are examined. author: - first_name: Dominik full_name: Schröder, Dominik last_name: Schröder - first_name: Ulrich full_name: Kiefner, Ulrich last_name: Kiefner - first_name: Christian full_name: Hedayat, Christian last_name: Hedayat - first_name: Jens full_name: Förstner, Jens id: '158' last_name: Förstner orcid: 0000-0001-7059-9862 citation: ama: 'Schröder D, Kiefner U, Hedayat C, Förstner J. Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources. In: 2024 International Symposium on Electromagnetic Compatibility – EMC Europe. IEEE; 2024. doi:10.1109/emceurope59828.2024.10722220' apa: Schröder, D., Kiefner, U., Hedayat, C., & Förstner, J. (2024). Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources. 2024 International Symposium on Electromagnetic Compatibility – EMC Europe. https://doi.org/10.1109/emceurope59828.2024.10722220 bibtex: '@inproceedings{Schröder_Kiefner_Hedayat_Förstner_2024, title={Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources}, DOI={10.1109/emceurope59828.2024.10722220}, booktitle={2024 International Symposium on Electromagnetic Compatibility – EMC Europe}, publisher={IEEE}, author={Schröder, Dominik and Kiefner, Ulrich and Hedayat, Christian and Förstner, Jens}, year={2024} }' chicago: Schröder, Dominik, Ulrich Kiefner, Christian Hedayat, and Jens Förstner. “Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources.” In 2024 International Symposium on Electromagnetic Compatibility – EMC Europe. IEEE, 2024. https://doi.org/10.1109/emceurope59828.2024.10722220. ieee: 'D. Schröder, U. Kiefner, C. Hedayat, and J. Förstner, “Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources,” 2024, doi: 10.1109/emceurope59828.2024.10722220.' mla: Schröder, Dominik, et al. “Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources.” 2024 International Symposium on Electromagnetic Compatibility – EMC Europe, IEEE, 2024, doi:10.1109/emceurope59828.2024.10722220. short: 'D. Schröder, U. Kiefner, C. Hedayat, J. Förstner, in: 2024 International Symposium on Electromagnetic Compatibility – EMC Europe, IEEE, 2024.' date_created: 2024-11-30T17:54:35Z date_updated: 2024-11-30T19:30:59Z department: - _id: '61' doi: 10.1109/emceurope59828.2024.10722220 keyword: - tet_topic_hf - tet_enas language: - iso: eng publication: 2024 International Symposium on Electromagnetic Compatibility – EMC Europe publication_status: published publisher: IEEE status: public title: Evaluation of Measurement Noise Effects in the Close Environment of Equivalent Near-Field Sources type: conference user_id: '158' 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 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: '56080' abstract: - lang: eng text: CPO‐27 is a metal‐organic framework (MOF) with coordinatively unsaturated metal centers (open metal sites). It is therefore an ideal host material for small guest molecules, including water. This opens up numerous possible applications, such as proton conduction, humidity sensing, water harvesting, or adsorption‐driven heat pumps. For all of these applications, profound knowledge of the adsorption and desorption of water in the micropores is mandatory. The hydration and water structure in CPO‐27‐M (M = Zn or Cu) is investigated using water vapor sorption, Fourier transform infrared (FTIR) spectroscopy, density functional theory (DFT) calculations, and molecular dynamics simulation. In the pores of CPO‐27‐Zn, water binds as a ligand to the Zn center. Additional water molecules are stepwise incorporated at defined positions, forming a network of H‐bonds with the framework and with each other. In CPO‐27‐Cu, hydration proceeds by an entirely different mechanism. Here, water does not coordinate to the metal center, but only forms H‐bonds with the framework; pore filling occurs mostly in a single step, with the open metal site remaining unoccupied. Water in the pores forms clusters with extensive intra‐cluster H‐bonding. author: - first_name: Marvin full_name: Kloß, Marvin last_name: Kloß - first_name: Michael full_name: Beerbaum, Michael last_name: Beerbaum - first_name: Dominik full_name: Baier, Dominik last_name: Baier - first_name: Christian full_name: Weinberger, Christian id: '11848' last_name: Weinberger - first_name: Frederik full_name: Zysk, Frederik id: '14757' last_name: Zysk - first_name: Hossam full_name: Elgabarty, Hossam id: '60250' last_name: Elgabarty orcid: 0000-0002-4945-1481 - first_name: Thomas D. full_name: Kühne, Thomas D. last_name: Kühne - first_name: Michael full_name: Tiemann, Michael id: '23547' last_name: Tiemann orcid: 0000-0003-1711-2722 citation: ama: 'Kloß M, Beerbaum M, Baier D, et al. Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn). Advanced Materials Interfaces. 2024;11(35):2400476. doi:10.1002/admi.202400476' apa: 'Kloß, M., Beerbaum, M., Baier, D., Weinberger, C., Zysk, F., Elgabarty, H., Kühne, T. D., & Tiemann, M. (2024). Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn). Advanced Materials Interfaces, 11(35), 2400476. https://doi.org/10.1002/admi.202400476' bibtex: '@article{Kloß_Beerbaum_Baier_Weinberger_Zysk_Elgabarty_Kühne_Tiemann_2024, title={Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn)}, volume={11}, DOI={10.1002/admi.202400476}, number={35}, journal={Advanced Materials Interfaces}, publisher={Wiley}, author={Kloß, Marvin and Beerbaum, Michael and Baier, Dominik and Weinberger, Christian and Zysk, Frederik and Elgabarty, Hossam and Kühne, Thomas D. and Tiemann, Michael}, year={2024}, pages={2400476} }' chicago: 'Kloß, Marvin, Michael Beerbaum, Dominik Baier, Christian Weinberger, Frederik Zysk, Hossam Elgabarty, Thomas D. Kühne, and Michael Tiemann. “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn).” Advanced Materials Interfaces 11, no. 35 (2024): 2400476. https://doi.org/10.1002/admi.202400476.' ieee: 'M. Kloß et al., “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn),” Advanced Materials Interfaces, vol. 11, no. 35, p. 2400476, 2024, doi: 10.1002/admi.202400476.' mla: 'Kloß, Marvin, et al. “Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn).” Advanced Materials Interfaces, vol. 11, no. 35, Wiley, 2024, p. 2400476, doi:10.1002/admi.202400476.' short: M. Kloß, M. Beerbaum, D. Baier, C. Weinberger, F. Zysk, H. Elgabarty, T.D. Kühne, M. Tiemann, Advanced Materials Interfaces 11 (2024) 2400476. date_created: 2024-09-06T07:07:17Z date_updated: 2025-01-10T14:23:51Z department: - _id: '35' - _id: '2' - _id: '307' doi: 10.1002/admi.202400476 intvolume: ' 11' issue: '35' language: - iso: eng main_file_link: - open_access: '1' oa: '1' page: '2400476' publication: Advanced Materials Interfaces publication_identifier: issn: - 2196-7350 - 2196-7350 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: 'Understanding Hydration in CPO‐27 Metal‐Organic Frameworks: Strong Impact of the Chemical Nature of the Metal (Cu, Zn)' type: journal_article user_id: '23547' volume: 11 year: '2024' ... --- _id: '58309' abstract: - lang: eng text: 'This study evaluates four widely used fracture simulation methods, comparing their computational expenses and implementation complexities within the finite element (FE) framework when employed on heterogeneous solids. Fracture methods considered encompass the intrinsic cohesive zone model (CZM) using zero-thickness cohesive interface elements (CIEs), the standard phase-field fracture (SPFM) approach, the cohesive phase-field fracture (CPFM) approach, and an innovative hybrid model. The hybrid approach combines the CPFM fracture method with the CZM, specifically applying the CZM within the interface zone. The finite element model studied is characterized by three specific phases: inclusions, matrix, and the interface zone. This case study serves as a potential template for meso- or micro-level simulations involving a variety of composite materials. The thorough assessment of these modeling techniques indicates that the CPFM approach stands out as the most effective computational model, provided that the thickness of the interface zone is not significantly smaller than that of the other phases. In materials like concrete, which contain interfaces within their microstructure, the interface thickness is notably small when compared to other phases. This leads to the hybrid model standing as the most authentic finite element model, utilizing CIEs within the interface to simulate interface debonding. A significant finding from this investigation is that within the CPFM method, for a specific interface thickness, convergence with the hybrid model can be observed. This suggests that the CPFM fracture method could serve as a unified fracture approach for multiphase materials when a specific interfacial thickness is used. In addition, this research provides valuable insights that can advance efforts to fine-tune material microstructures. An investigation of the influence of interfacial material properties, voids, and the spatial arrangement of inclusions shows a pronounced effect of these parameters on the fracture toughness of the material.' article_number: '160' author: - first_name: Rasoul full_name: Najafi Koopas, Rasoul last_name: Najafi Koopas - first_name: Shahed full_name: Rezaei, Shahed last_name: Rezaei - first_name: Natalie full_name: Rauter, Natalie last_name: Rauter - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald - first_name: Rolf full_name: Lammering, Rolf last_name: Lammering citation: ama: 'Najafi Koopas R, Rezaei S, Rauter N, Ostwald R, Lammering R. Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties. Applied Sciences. 2024;15(1). doi:10.3390/app15010160' apa: 'Najafi Koopas, R., Rezaei, S., Rauter, N., Ostwald, R., & Lammering, R. (2024). Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties. Applied Sciences, 15(1), Article 160. https://doi.org/10.3390/app15010160' bibtex: '@article{Najafi Koopas_Rezaei_Rauter_Ostwald_Lammering_2024, title={Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties}, volume={15}, DOI={10.3390/app15010160}, number={1160}, journal={Applied Sciences}, publisher={MDPI AG}, author={Najafi Koopas, Rasoul and Rezaei, Shahed and Rauter, Natalie and Ostwald, Richard and Lammering, Rolf}, year={2024} }' chicago: 'Najafi Koopas, Rasoul, Shahed Rezaei, Natalie Rauter, Richard Ostwald, and Rolf Lammering. “Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties.” Applied Sciences 15, no. 1 (2024). https://doi.org/10.3390/app15010160.' ieee: 'R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, and R. Lammering, “Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties,” Applied Sciences, vol. 15, no. 1, Art. no. 160, 2024, doi: 10.3390/app15010160.' mla: 'Najafi Koopas, Rasoul, et al. “Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties.” Applied Sciences, vol. 15, no. 1, 160, MDPI AG, 2024, doi:10.3390/app15010160.' short: R. Najafi Koopas, S. Rezaei, N. Rauter, R. Ostwald, R. Lammering, Applied Sciences 15 (2024). date_created: 2025-01-21T13:48:05Z date_updated: 2025-02-14T10:52:55Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.3390/app15010160 intvolume: ' 15' issue: '1' language: - iso: eng publication: Applied Sciences publication_identifier: issn: - 2076-3417 publication_status: published publisher: MDPI AG quality_controlled: '1' status: public title: 'Comparative Analysis of Phase-Field and Intrinsic Cohesive Zone Models for Fracture Simulations in Multiphase Materials with Interfaces: Investigation of the Influence of the Microstructure on the Fracture Properties' type: journal_article user_id: '85414' volume: 15 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' ...