--- _id: '63512' abstract: - lang: eng text: "The state of the art shows that PBF-LB/M offers great potential for pressure-loaded parts, with significant weight reductions and simultaneous optimization of flow resistance. This study is aimed at applying existing calculation methods for pressure-loaded parts to additively manufactured pipe structures, considering the two materials EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this purpose, systematic tensile tests are carried out for both materials. In addition, a statistical evaluation is performed to determine the design-relevant strength characteristics with a survival probability Ps of 97.5 % for both materials in the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half of which are heat treated, geometrically measured and then subjected to a burst pressure test to experimentally determine the failure-critical internal pressure. These results are compared with calculated burst pressures. The calculations are based on the application-relevant methods identified in this study, considering the strength values determined for the respective material condition. This comparison is used to assess the suitability of the calculation methods for additively manufactured pipe structures, based on the materials investigated." article_number: '105753' author: - first_name: Thorsten full_name: Koers, Thorsten id: '38077' last_name: Koers - first_name: Balázs full_name: Magyar, Balázs id: '97759' last_name: Magyar - first_name: Christian full_name: Bödger, Christian id: '93904' last_name: Bödger - first_name: Thomas full_name: Tröster, Thomas id: '553' last_name: Tröster citation: ama: Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping. Published online 2026. doi:10.1016/j.ijpvp.2026.105753 apa: Koers, T., Magyar, B., Bödger, C., & Tröster, T. (2026). Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. International Journal of Pressure Vessels and Piping, Article 105753. https://doi.org/10.1016/j.ijpvp.2026.105753 bibtex: '@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M}, DOI={10.1016/j.ijpvp.2026.105753}, number={105753}, journal={International Journal of Pressure Vessels and Piping}, publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger, Christian and Tröster, Thomas}, year={2026} }' chicago: Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping, 2026. https://doi.org/10.1016/j.ijpvp.2026.105753. ieee: 'T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M,” International Journal of Pressure Vessels and Piping, Art. no. 105753, 2026, doi: 10.1016/j.ijpvp.2026.105753.' mla: Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” International Journal of Pressure Vessels and Piping, 105753, Elsevier BV, 2026, doi:10.1016/j.ijpvp.2026.105753. short: T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure Vessels and Piping (2026). date_created: 2026-01-07T08:39:04Z date_updated: 2026-01-14T11:56:01Z department: - _id: '146' - _id: '9' - _id: '624' - _id: '149' - _id: '321' doi: 10.1016/j.ijpvp.2026.105753 keyword: - PBF-LB/M - Pipe structures - Strength assessment - Burst pressure test - Geometrical deviations language: - iso: eng main_file_link: - open_access: '1' url: https://doi.org/10.1016/j.ijpvp.2026.105753 oa: '1' publication: International Journal of Pressure Vessels and Piping publication_identifier: issn: - 0308-0161 publication_status: published publisher: Elsevier BV quality_controlled: '1' status: public title: Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M type: journal_article user_id: '97759' year: '2026' ... --- _id: '63800' abstract: - lang: eng text: In this contribution, we address the estimation of the frequency-dependent elastic parameters of polymers in the ultrasound range, which is formulated as an inverse problem. This inverse problem is implemented as a nonlinear regression-type optimization problem, in which the simulation signals are fitted to the measurement signals. These signals consist of displacement responses in waveguides, focusing on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate the optimization and reduce the number of model evaluations and wait times, we propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt method derived from a geometrical interpretation of the least-squares optimization problem. Second, we introduce an improved objective function based on the autocorrelated envelopes of the measurement and simulation signals. Given that this study primarily relies on simulation data to quantify optimization convergence, we aggregate the expected ranges of realistic material parameters and derive their distributions to ensure the reproducibility of optimizations with proper measurements. We demonstrate the effectiveness of our objective function modification and step adaptation for various materials with isotropic material symmetry by comparing them with the Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the total number of model evaluations, thereby shortening the time to identify the material parameters. author: - first_name: Dominik full_name: Itner, Dominik last_name: Itner - first_name: Dmitrij full_name: Dreiling, Dmitrij id: '32616' last_name: Dreiling - first_name: Hauke full_name: Gravenkamp, Hauke last_name: Gravenkamp - first_name: Bernd full_name: Henning, Bernd id: '213' last_name: Henning - first_name: Carolin full_name: Birk, Carolin last_name: Birk citation: ama: Itner D, Dreiling D, Gravenkamp H, Henning B, Birk C. A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. Mechanical Systems and Signal Processing. 2026;247:113904. doi:https://doi.org/10.1016/j.ymssp.2026.113904 apa: Itner, D., Dreiling, D., Gravenkamp, H., Henning, B., & Birk, C. (2026). A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. Mechanical Systems and Signal Processing, 247, 113904. https://doi.org/10.1016/j.ymssp.2026.113904 bibtex: '@article{Itner_Dreiling_Gravenkamp_Henning_Birk_2026, title={A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses}, volume={247}, DOI={https://doi.org/10.1016/j.ymssp.2026.113904}, journal={Mechanical Systems and Signal Processing}, author={Itner, Dominik and Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin}, year={2026}, pages={113904} }' chicago: 'Itner, Dominik, Dmitrij Dreiling, Hauke Gravenkamp, Bernd Henning, and Carolin Birk. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” Mechanical Systems and Signal Processing 247 (2026): 113904. https://doi.org/10.1016/j.ymssp.2026.113904.' ieee: 'D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, and C. Birk, “A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses,” Mechanical Systems and Signal Processing, vol. 247, p. 113904, 2026, doi: https://doi.org/10.1016/j.ymssp.2026.113904.' mla: Itner, Dominik, et al. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” Mechanical Systems and Signal Processing, vol. 247, 2026, p. 113904, doi:https://doi.org/10.1016/j.ymssp.2026.113904. short: D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems and Signal Processing 247 (2026) 113904. date_created: 2026-01-29T08:53:42Z date_updated: 2026-02-02T12:44:47Z department: - _id: '49' doi: https://doi.org/10.1016/j.ymssp.2026.113904 intvolume: ' 247' keyword: - Material parameter estimation - Waveguide - Nonlinear optimization - Inverse problem - Least squares language: - iso: eng main_file_link: - open_access: '1' url: https://www.sciencedirect.com/science/article/pii/S0888327026000610/pdfft?md5=16e8493b44527f4ab0a6d13f634a01c3&pid=1-s2.0-S0888327026000610-main.pdf oa: '1' page: '113904' project: - _id: '89' name: Vollständige Bestimmung der akustischen Materialparameter von Polymeren publication: Mechanical Systems and Signal Processing publication_identifier: issn: - 0888-3270 publication_status: published status: public title: A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses type: journal_article user_id: '32616' volume: 247 year: '2026' ... --- _id: '63860' citation: ama: Hogan A, Satoh K, Dag H, Turhan A-Y, Roman D, Soylu A, eds. Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings. Vol 16144. Springer; 2026. doi:10.1007/978-3-032-08887-1 apa: Hogan, A., Satoh, K., Dag, H., Turhan, A.-Y., Roman, D., & Soylu, A. (Eds.). (2026). Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings (Vol. 16144). Springer. https://doi.org/10.1007/978-3-032-08887-1 bibtex: '@book{Hogan_Satoh_Dag_Turhan_Roman_Soylu_2026, series={Lecture Notes in Computer Science}, title={Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings}, volume={16144}, DOI={10.1007/978-3-032-08887-1}, publisher={Springer}, year={2026}, collection={Lecture Notes in Computer Science} }' chicago: Hogan, Aidan, Ken Satoh, Hasan Dag, Anni-Yasmin Turhan, Dumitru Roman, and Ahmet Soylu, eds. Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings. Vol. 16144. Lecture Notes in Computer Science. Springer, 2026. https://doi.org/10.1007/978-3-032-08887-1. ieee: A. Hogan, K. Satoh, H. Dag, A.-Y. Turhan, D. Roman, and A. Soylu, Eds., Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings, vol. 16144. Springer, 2026. mla: Hogan, Aidan, et al., editors. Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings. Springer, 2026, doi:10.1007/978-3-032-08887-1. short: A. Hogan, K. Satoh, H. Dag, A.-Y. Turhan, D. Roman, A. Soylu, eds., Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings, Springer, 2026. date_created: 2026-02-04T07:12:48Z date_updated: 2026-02-04T07:13:38Z doi: 10.1007/978-3-032-08887-1 editor: - first_name: Aidan full_name: Hogan, Aidan last_name: Hogan - first_name: Ken full_name: Satoh, Ken last_name: Satoh - first_name: Hasan full_name: Dag, Hasan last_name: Dag - first_name: Anni-Yasmin full_name: Turhan, Anni-Yasmin id: '104470' last_name: Turhan - first_name: Dumitru full_name: Roman, Dumitru last_name: Roman - first_name: Ahmet full_name: Soylu, Ahmet last_name: Soylu intvolume: ' 16144' language: - iso: eng publication_identifier: isbn: - 978-3-032-08886-4 publisher: Springer series_title: Lecture Notes in Computer Science status: public title: Rules and Reasoning - 9th International Joint Conference, RuleML+RR 2025, Istanbul, Turkey, September 22-24, 2025, Proceedings type: conference_editor user_id: '117185' volume: 16144 year: '2026' ... --- _id: '63881' abstract: - lang: eng text: |- Abstract The relationship between leptin levels and psychiatric disorders has been studied more extensively in adults than in children and adolescents. However, the results are conflicting. We investigated serum leptin levels in children and adolescents (11 to 18.9 years) with psychiatric disorders ( n  = 363). Absolute and relative (body-mass-index (BMI)-, sex- and pubertal-stage-adjusted z-scores using reference values of healthy children and adolescents) leptin levels of different patient groups according to diagnosis were compared. The association between leptin levels and depression (Beck Depression Inventory-II) and anxiety (Child Behavior Checklist and Youth Self Report) was examined using regression analysis. Leptin z-scores were higher in patients with psychiatric disorders than in healthy controls (median 1.50, p  < .001). While global tests suggested differences in leptin z-scores between patients with different psychiatric disorders, these differences could not be attributed to diagnosis groups in post-hoc pairwise comparisons. Absolute leptin levels differed between psychiatric disorders ( p  < .001). Patients with anorexia nervosa (AN) had the lowest levels, and patients with mood disorders had higher leptin levels than patients with mental disorders other than mood disorders, anxiety or AN. Neither absolute nor relative leptin levels were related to depressive or anxiety symptoms in regression models adjusted for sex and BMI. Significantly elevated BMI-, sex- and puberty-stage-adjusted leptin levels were observed in children and adolescents with psychiatric disorders compared to a reference sample. Further controlled studies are needed to confirm and explain this finding. No relationship was found between absolute or relative leptin levels and symptoms of depression or anxiety. author: - first_name: Nicola full_name: Albers, Nicola last_name: Albers - first_name: Jochen full_name: Antel, Jochen last_name: Antel - first_name: Manuel full_name: Föcker, Manuel last_name: Föcker - first_name: Lars full_name: Libuda, Lars last_name: Libuda - first_name: Judith full_name: Bühlmeier, Judith last_name: Bühlmeier - first_name: Raphael full_name: Hirtz, Raphael last_name: Hirtz - first_name: Jochen full_name: Seitz, Jochen last_name: Seitz - first_name: Anke full_name: Hinney, Anke last_name: Hinney - first_name: Johannes full_name: Hebebrand, Johannes last_name: Hebebrand - first_name: Triinu full_name: Peters, Triinu last_name: Peters citation: ama: Albers N, Antel J, Föcker M, et al. Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status. European Child &amp; Adolescent Psychiatry. Published online 2026. doi:10.1007/s00787-025-02921-4 apa: Albers, N., Antel, J., Föcker, M., Libuda, L., Bühlmeier, J., Hirtz, R., Seitz, J., Hinney, A., Hebebrand, J., & Peters, T. (2026). Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status. European Child &amp; Adolescent Psychiatry. https://doi.org/10.1007/s00787-025-02921-4 bibtex: '@article{Albers_Antel_Föcker_Libuda_Bühlmeier_Hirtz_Seitz_Hinney_Hebebrand_Peters_2026, title={Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status}, DOI={10.1007/s00787-025-02921-4}, journal={European Child &amp; Adolescent Psychiatry}, publisher={Springer Science and Business Media LLC}, author={Albers, Nicola and Antel, Jochen and Föcker, Manuel and Libuda, Lars and Bühlmeier, Judith and Hirtz, Raphael and Seitz, Jochen and Hinney, Anke and Hebebrand, Johannes and Peters, Triinu}, year={2026} }' chicago: Albers, Nicola, Jochen Antel, Manuel Föcker, Lars Libuda, Judith Bühlmeier, Raphael Hirtz, Jochen Seitz, Anke Hinney, Johannes Hebebrand, and Triinu Peters. “Children and Adolescents with Psychiatric Disorders Have High Relative Leptin Levels upon Adjustment for Sex, BMI, and Pubertal Status.” European Child &amp; Adolescent Psychiatry, 2026. https://doi.org/10.1007/s00787-025-02921-4. ieee: 'N. Albers et al., “Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status,” European Child &amp; Adolescent Psychiatry, 2026, doi: 10.1007/s00787-025-02921-4.' mla: Albers, Nicola, et al. “Children and Adolescents with Psychiatric Disorders Have High Relative Leptin Levels upon Adjustment for Sex, BMI, and Pubertal Status.” European Child &amp; Adolescent Psychiatry, Springer Science and Business Media LLC, 2026, doi:10.1007/s00787-025-02921-4. short: N. Albers, J. Antel, M. Föcker, L. Libuda, J. Bühlmeier, R. Hirtz, J. Seitz, A. Hinney, J. Hebebrand, T. Peters, European Child &amp; Adolescent Psychiatry (2026). date_created: 2026-02-05T09:21:46Z date_updated: 2026-02-05T09:22:02Z department: - _id: '35' - _id: '17' - _id: '22' doi: 10.1007/s00787-025-02921-4 language: - iso: eng publication: European Child & Adolescent Psychiatry publication_identifier: issn: - 1018-8827 - 1435-165X publication_status: published publisher: Springer Science and Business Media LLC status: public title: Children and adolescents with psychiatric disorders have high relative leptin levels upon adjustment for sex, BMI, and pubertal status type: journal_article user_id: '88682' year: '2026' ... --- _id: '63880' author: - first_name: Nadja full_name: Knoll-Pientka, Nadja last_name: Knoll-Pientka - first_name: Dorina full_name: Schils, Dorina last_name: Schils - first_name: Katrin full_name: Mantwill, Katrin last_name: Mantwill - first_name: Hannah full_name: Dinse, Hannah last_name: Dinse - first_name: Eva-Maria full_name: Skoda, Eva-Maria last_name: Skoda - first_name: Alexander full_name: Bäuerle, Alexander last_name: Bäuerle - first_name: Martin full_name: Teufel, Martin last_name: Teufel - first_name: Lars full_name: Libuda, Lars last_name: Libuda citation: ama: Knoll-Pientka N, Schils D, Mantwill K, et al. Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women. BMC Nutrition. Published online 2026. doi:10.1186/s40795-026-01260-0 apa: Knoll-Pientka, N., Schils, D., Mantwill, K., Dinse, H., Skoda, E.-M., Bäuerle, A., Teufel, M., & Libuda, L. (2026). Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women. BMC Nutrition. https://doi.org/10.1186/s40795-026-01260-0 bibtex: '@article{Knoll-Pientka_Schils_Mantwill_Dinse_Skoda_Bäuerle_Teufel_Libuda_2026, title={Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women}, DOI={10.1186/s40795-026-01260-0}, journal={BMC Nutrition}, publisher={Springer Science and Business Media LLC}, author={Knoll-Pientka, Nadja and Schils, Dorina and Mantwill, Katrin and Dinse, Hannah and Skoda, Eva-Maria and Bäuerle, Alexander and Teufel, Martin and Libuda, Lars}, year={2026} }' chicago: Knoll-Pientka, Nadja, Dorina Schils, Katrin Mantwill, Hannah Dinse, Eva-Maria Skoda, Alexander Bäuerle, Martin Teufel, and Lars Libuda. “Adherence to Dietary Recommendations According to the General Dietary Behavior Inventory (GDBI) and Its Association with Bioelectrical Impedance Analysis (BIA) Parameters among Young, Healthy and Normal Weight Women.” BMC Nutrition, 2026. https://doi.org/10.1186/s40795-026-01260-0. ieee: 'N. Knoll-Pientka et al., “Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women,” BMC Nutrition, 2026, doi: 10.1186/s40795-026-01260-0.' mla: Knoll-Pientka, Nadja, et al. “Adherence to Dietary Recommendations According to the General Dietary Behavior Inventory (GDBI) and Its Association with Bioelectrical Impedance Analysis (BIA) Parameters among Young, Healthy and Normal Weight Women.” BMC Nutrition, Springer Science and Business Media LLC, 2026, doi:10.1186/s40795-026-01260-0. short: N. Knoll-Pientka, D. Schils, K. Mantwill, H. Dinse, E.-M. Skoda, A. Bäuerle, M. Teufel, L. Libuda, BMC Nutrition (2026). date_created: 2026-02-05T09:20:38Z date_updated: 2026-02-05T09:21:23Z department: - _id: '35' - _id: '17' - _id: '22' doi: 10.1186/s40795-026-01260-0 language: - iso: eng publication: BMC Nutrition publication_identifier: issn: - 2055-0928 publication_status: published publisher: Springer Science and Business Media LLC status: public title: Adherence to dietary recommendations according to the General Dietary Behavior Inventory (GDBI) and its association with bioelectrical impedance analysis (BIA) parameters among young, healthy and normal weight women type: journal_article user_id: '88682' year: '2026' ... --- _id: '63890' abstract: - lang: eng text: The computation of highly contracted electron repulsion integrals (ERIs) is essential to achieve quantum accuracy in atomistic simulations based on quantum mechanics. Its growing computational demands make energy efficiency a critical concern. Recent studies demonstrate FPGAs’ superior performance and energy efficiency for computing primitive ERIs, but the computation of highly contracted ERIs introduces significant algorithmic complexity and new design challenges for FPGA acceleration.In this work, we present SORCERI, the first streaming overlay acceleration for highly contracted ERI computations on FPGAs. SORCERI introduces a novel streaming Rys computing unit to calculate roots and weights of Rys polynomials on-chip, and a streaming contraction unit for the contraction of primitive ERIs. This shifts the design bottleneck from limited CPU-FPGA communication bandwidth to available FPGA computation resources. To address practical deployment challenges for a large number of quartet classes, we design three streaming overlays, together with an efficient memory transpose optimization, to cover the 21 most commonly used quartet classes in realistic atomistic simulations. To address the new computation constraints, we use flexible calculation stages with a free-running streaming architecture to achieve high DSP utilization and good timing closure.Experiments demonstrate that SORCERI achieves an average 5.96x, 1.99x, and 1.16x better performance per watt than libint on a 64-core AMD EPYC 7713 CPU, libintx on an Nvidia A40 GPU, and SERI, the prior best-performing FPGA design for primitive ERIs. Furthermore, SORCERI reaches a peak throughput of 44.11 GERIS (109 ERIs per second) that is 1.52x, 1.13x, and 1.93x greater than libint, libintx and SERI, respectively. SORCERI will be released soon at https://github.com/SFU-HiAccel/SORCERI. author: - first_name: Philip full_name: Stachura, Philip last_name: Stachura - first_name: Xin full_name: Wu, Xin id: '77439' last_name: Wu - first_name: Christian full_name: Plessl, Christian id: '16153' last_name: Plessl orcid: 0000-0001-5728-9982 - first_name: Zhenman full_name: Fang, Zhenman last_name: Fang citation: ama: 'Stachura P, Wu X, Plessl C, Fang Z. SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. In: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26). Association for Computing Machinery; 2026:224-234. doi:10.1145/3748173.3779198' apa: 'Stachura, P., Wu, X., Plessl, C., & Fang, Z. (2026). SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry. Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 224–234. https://doi.org/10.1145/3748173.3779198' bibtex: '@inproceedings{Stachura_Wu_Plessl_Fang_2026, place={New York, NY, USA}, title={SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry}, DOI={10.1145/3748173.3779198}, booktitle={Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26)}, publisher={Association for Computing Machinery}, author={Stachura, Philip and Wu, Xin and Plessl, Christian and Fang, Zhenman}, year={2026}, pages={224–234} }' chicago: 'Stachura, Philip, Xin Wu, Christian Plessl, and Zhenman Fang. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” In Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 224–34. New York, NY, USA: Association for Computing Machinery, 2026. https://doi.org/10.1145/3748173.3779198.' ieee: 'P. Stachura, X. Wu, C. Plessl, and Z. Fang, “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry,” in Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), 2026, pp. 224–234, doi: 10.1145/3748173.3779198.' mla: 'Stachura, Philip, et al. “SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry.” Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), Association for Computing Machinery, 2026, pp. 224–34, doi:10.1145/3748173.3779198.' short: 'P. Stachura, X. Wu, C. Plessl, Z. Fang, in: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA ’26), Association for Computing Machinery, New York, NY, USA, 2026, pp. 224–234.' date_created: 2026-02-06T06:43:22Z date_updated: 2026-02-09T09:16:32Z department: - _id: '27' - _id: '518' doi: 10.1145/3748173.3779198 keyword: - electron repulsion integrals - quantum chemistry - atomistic simulation - overlay architecture - fpga acceleration language: - iso: eng main_file_link: - url: https://dl.acm.org/doi/10.1145/3748173.3779198 page: 224-234 place: New York, NY, USA project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: Proceedings of the 2026 ACM/SIGDA International Symposium on Field Programmable Gate Arrays (FPGA '26) publication_identifier: isbn: - '9798400720796' publication_status: published publisher: Association for Computing Machinery status: public title: 'SORCERI: Streaming Overlay Acceleration for Highly Contracted Electron Repulsion Integral Computations in Quantum Chemistry' type: conference user_id: '77439' year: '2026' ... --- _id: '64129' abstract: - lang: eng text: Selecting scan angles such that surface segments are aligned with straight X-ray paths (i.e., rays are tangential to the surface and therefore perpendicular to the local surface normal) is known to produce sharper transitions of those surface segments in the reconstructed volume. This enhances dimensional accuracy in sparse-view computed tomography (CT). However, existing approaches offer no direct means to exploit this criterion for automatic scan-angle optimization. We propose a method that uses a virtual representation of the CT setup, including an STL surface model of the inspected part, to automatically identify taskspecific scan angles. Using elementary vector calculus, the algorithm determines projection directions that generate tangential X-rays for targeted surface segments. To support different levels of geometric complexity, we introduce two variants of the angle-selection procedure. The methods were experimentally validated on two objects with distinct absorption and geometric characteristics. For a steel gauge block, employing the minimum number of task-specific projections required for surface-data completeness substantially outperformed a conventional high-projection scan. For a geometrically more complex test object, surface-related errors were still reduced within the region of interest. The proposed approach – particularly suited for flat surface structures and not accounting for image-degrading factors other than cone-beam artifacts – shows promise for high-throughput dimensional metrology of mono-material parts. author: - first_name: Lorenz full_name: Butzhammer, Lorenz last_name: Butzhammer - first_name: Matthias Robert Oskar full_name: Braun, Matthias Robert Oskar last_name: Braun - first_name: Colin full_name: Herath, Colin last_name: Herath - first_name: Tino full_name: Hausotte, Tino last_name: Hausotte citation: ama: 'Butzhammer L, Braun MRO, Herath C, Hausotte T. Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface. In: E-Journal of Nondestructive Testing. Vol 31. NDT.net GmbH & Co. KG; 2026. doi:10.58286/32560' apa: Butzhammer, L., Braun, M. R. O., Herath, C., & Hausotte, T. (2026). Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface. E-Journal of Nondestructive Testing, 31(3). https://doi.org/10.58286/32560 bibtex: '@inproceedings{Butzhammer_Braun_Herath_Hausotte_2026, title={Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface}, volume={31}, DOI={10.58286/32560}, number={3}, booktitle={e-Journal of Nondestructive Testing}, publisher={NDT.net GmbH & Co. KG}, author={Butzhammer, Lorenz and Braun, Matthias Robert Oskar and Herath, Colin and Hausotte, Tino}, year={2026} }' chicago: Butzhammer, Lorenz, Matthias Robert Oskar Braun, Colin Herath, and Tino Hausotte. “Higher Accuracy with Fewer Projections? Automated Scan Angle Selection for Dimensional Computed Tomography Based on a Simple Data Completeness Measure for the Part Surface.” In E-Journal of Nondestructive Testing, Vol. 31. NDT.net GmbH & Co. KG, 2026. https://doi.org/10.58286/32560. ieee: 'L. Butzhammer, M. R. O. Braun, C. Herath, and T. Hausotte, “Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface,” in e-Journal of Nondestructive Testing, Linz, 2026, vol. 31, no. 3, doi: 10.58286/32560.' mla: Butzhammer, Lorenz, et al. “Higher Accuracy with Fewer Projections? Automated Scan Angle Selection for Dimensional Computed Tomography Based on a Simple Data Completeness Measure for the Part Surface.” E-Journal of Nondestructive Testing, vol. 31, no. 3, NDT.net GmbH & Co. KG, 2026, doi:10.58286/32560. short: 'L. Butzhammer, M.R.O. Braun, C. Herath, T. Hausotte, in: E-Journal of Nondestructive Testing, NDT.net GmbH & Co. KG, 2026.' conference: location: Linz name: 15th Conference on Industrial Computed Tomography (iCT) date_created: 2026-02-12T10:11:08Z date_updated: 2026-02-12T10:41:45Z department: - _id: '630' doi: 10.58286/32560 intvolume: ' 31' issue: '3' language: - iso: eng main_file_link: - open_access: '1' url: https://www.ndt.net/article/ctc2026/papers/ict26_Contribution_184.pdf oa: '1' project: - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '133' name: TRR 285 - Project Area C - _id: '149' name: TRR 285 - Subproject C05 publication: e-Journal of Nondestructive Testing publication_identifier: issn: - 1435-4934 publication_status: published publisher: NDT.net GmbH & Co. KG quality_controlled: '1' status: public title: Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface type: conference user_id: '93720' volume: 31 year: '2026' ... --- _id: '64159' abstract: - lang: eng text: "ABSTRACT\r\n Separation processes, such as distillation and stripping, are highly energy‐intensive. Typically, energy is supplied indirectly via a reboiler, which is often associated with heat losses. We present a preliminary theoretical evaluation of a novel concept to supply energy directly inside the column using heatable structured packings. These packings can be produced by multi‐material 3D printing, resulting in a conductive inner layer and an insulating outer layer. Functioning as electric resistance heaters, these packings serve as heating elements. In this numerical study, we compared different scenarios of energy supply along the height of the column, including uniform distribution, applying a temperature profile, and using or omitting a reboiler." article_number: e70076 article_type: original author: - first_name: Nicole full_name: Lutters, Nicole id: '22006' last_name: Lutters orcid: 0009-0006-7828-8448 - first_name: Sascha full_name: Brüne, Sascha last_name: Brüne - first_name: Julia full_name: Riese, Julia id: '101499' last_name: Riese orcid: 0000-0002-3053-0534 citation: ama: Lutters N, Brüne S, Riese J. Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes. Chemie Ingenieur Technik. Published online 2026. doi:10.1002/cite.70076 apa: Lutters, N., Brüne, S., & Riese, J. (2026). Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes. Chemie Ingenieur Technik, Article e70076. https://doi.org/10.1002/cite.70076 bibtex: '@article{Lutters_Brüne_Riese_2026, title={Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes}, DOI={10.1002/cite.70076}, number={e70076}, journal={Chemie Ingenieur Technik}, publisher={Wiley}, author={Lutters, Nicole and Brüne, Sascha and Riese, Julia}, year={2026} }' chicago: Lutters, Nicole, Sascha Brüne, and Julia Riese. “Preliminary Numerical Evaluation of Directly Heated Structured Packings to Be Used for Separation Processes.” Chemie Ingenieur Technik, 2026. https://doi.org/10.1002/cite.70076. ieee: 'N. Lutters, S. Brüne, and J. Riese, “Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes,” Chemie Ingenieur Technik, Art. no. e70076, 2026, doi: 10.1002/cite.70076.' mla: Lutters, Nicole, et al. “Preliminary Numerical Evaluation of Directly Heated Structured Packings to Be Used for Separation Processes.” Chemie Ingenieur Technik, e70076, Wiley, 2026, doi:10.1002/cite.70076. short: N. Lutters, S. Brüne, J. Riese, Chemie Ingenieur Technik (2026). date_created: 2026-02-16T07:56:53Z date_updated: 2026-02-23T06:59:41Z department: - _id: '831' doi: 10.1002/cite.70076 language: - iso: eng publication: Chemie Ingenieur Technik publication_identifier: issn: - 0009-286X - 1522-2640 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Preliminary Numerical Evaluation of Directly Heated Structured Packings to be Used for Separation Processes type: journal_article user_id: '22006' year: '2026' ... --- _id: '64251' abstract: - lang: eng text: "ABSTRACT\r\n Clinching is a widely adopted joining technique in the automotive industry, enabling the fabrication of lightweight structures from dissimilar sheet materials. Accurate prediction of the fatigue life of clinched joints is essential for ensuring structural safety and minimizing development costs. However, full 3D fatigue simulations over millions of cycles are computationally intensive due to the complexity of contact mechanics. This study introduces a 2D numerical model that circumvents direct contact modeling by applying a slip condition at the sheet interface, significantly reducing computational demands. A micro‐slip friction model is used to represent the mechanical interface behavior, while a two‐scale damage model captures the fatigue damage evolution. The model is validated against experimental data and used to investigate the influence of friction coefficient and tangential contact stiffness on fatigue life, highlighting its efficiency and predictive capability." article_number: e70035 author: - first_name: Chin full_name: Chen, Chin id: '114741' last_name: Chen - first_name: Martin full_name: Hofmann, Martin last_name: Hofmann - first_name: Thomas full_name: Wallmersperger, Thomas last_name: Wallmersperger citation: ama: Chen C, Hofmann M, Wallmersperger T. A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints. PAMM. 2026;26(1). doi:10.1002/pamm.70035 apa: Chen, C., Hofmann, M., & Wallmersperger, T. (2026). A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints. PAMM, 26(1), Article e70035. https://doi.org/10.1002/pamm.70035 bibtex: '@article{Chen_Hofmann_Wallmersperger_2026, title={A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints}, volume={26}, DOI={10.1002/pamm.70035}, number={1e70035}, journal={PAMM}, publisher={Wiley}, author={Chen, Chin and Hofmann, Martin and Wallmersperger, Thomas}, year={2026} }' chicago: Chen, Chin, Martin Hofmann, and Thomas Wallmersperger. “A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints.” PAMM 26, no. 1 (2026). https://doi.org/10.1002/pamm.70035. ieee: 'C. Chen, M. Hofmann, and T. Wallmersperger, “A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints,” PAMM, vol. 26, no. 1, Art. no. e70035, 2026, doi: 10.1002/pamm.70035.' mla: Chen, Chin, et al. “A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints.” PAMM, vol. 26, no. 1, e70035, Wiley, 2026, doi:10.1002/pamm.70035. short: C. Chen, M. Hofmann, T. Wallmersperger, PAMM 26 (2026). date_created: 2026-02-19T10:03:06Z date_updated: 2026-02-24T15:10:04Z doi: 10.1002/pamm.70035 intvolume: ' 26' issue: '1' language: - iso: eng project: - _id: '142' name: TRR 285 - Subproject B03 - _id: '130' name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten' - _id: '132' name: TRR 285 - Project Area B publication: PAMM publication_identifier: issn: - 1617-7061 - 1617-7061 publication_status: published publisher: Wiley status: public title: A 2D Approach to Predict the High‐Cycle Fatigue Life of Clinched Joints type: journal_article user_id: '114741' volume: 26 year: '2026' ... --- _id: '61523' abstract: - lang: eng text: AbstractMetasurface holography offers a powerful approach for manipulating wavefronts at the nano and micro scale. Extensive research has been conducted to enhance the multiplexing capacity for diverse wavefronts. However, the independence of multiplexed channels is fundamentally restricted in techniques using single‐layer metasurfaces, resulting in unavoidable crosstalk and the need for post‐filtering of the output wavefronts. Here, a universal wavefront multiplexing concept is presented based on non‐injective transformation. By employing joint optimization on two metasurfaces, different channels can be independently designed without any constraints on the output wavefronts. To validate this approach, ultra‐compact orbital angular momentum (OAM) sorters are designed. In these experiments, the output beams from different channels can be independently mapped to 2D positions with high fineness. In another application of wavefront‐multiplexed holography, 10‐channel multiplexing is experimentally achieved with minimal crosstalk and without the need for post‐processing. These results demonstrate the independence between channels enabled by the non‐injective transformation in the method. The precise wavefront control and high multiplexing capacity underscore its potential for scalable wavefront manipulation devices. article_number: e11823 article_type: original author: - first_name: Xiao full_name: Jin, Xiao last_name: Jin - first_name: Thomas full_name: Zentgraf, Thomas id: '30525' last_name: Zentgraf orcid: 0000-0002-8662-1101 citation: ama: Jin X, Zentgraf T. Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation. Advanced Materials. 2026;38. doi:10.1002/adma.202511823 apa: Jin, X., & Zentgraf, T. (2026). Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation. Advanced Materials, 38, Article e11823. https://doi.org/10.1002/adma.202511823 bibtex: '@article{Jin_Zentgraf_2026, title={Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation}, volume={38}, DOI={10.1002/adma.202511823}, number={e11823}, journal={Advanced Materials}, publisher={Wiley}, author={Jin, Xiao and Zentgraf, Thomas}, year={2026} }' chicago: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation.” Advanced Materials 38 (2026). https://doi.org/10.1002/adma.202511823. ieee: 'X. Jin and T. Zentgraf, “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation,” Advanced Materials, vol. 38, Art. no. e11823, 2026, doi: 10.1002/adma.202511823.' mla: Jin, Xiao, and Thomas Zentgraf. “Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation.” Advanced Materials, vol. 38, e11823, Wiley, 2026, doi:10.1002/adma.202511823. short: X. Jin, T. Zentgraf, Advanced Materials 38 (2026). date_created: 2025-10-06T05:42:21Z date_updated: 2026-03-10T08:32:37Z department: - _id: '15' - _id: '230' - _id: '289' - _id: '623' doi: 10.1002/adma.202511823 intvolume: ' 38' language: - iso: eng main_file_link: - open_access: '1' url: https://advanced.onlinelibrary.wiley.com/doi/10.1002/adma.202511823 oa: '1' project: - _id: '53' name: 'TRR 142: Maßgeschneiderte nichtlineare Photonik: Von grundlegenden Konzepten zu funktionellen Strukturen' - _id: '54' name: TRR 142 - Project Area A - _id: '55' name: TRR 142 - Project Area B - _id: '65' name: 'TRR 142; TP A08: Nichtlineare Kopplung von Zwischenschicht-Exzitonen in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten' - _id: '170' name: 'TRR 142; TP B09: Effiziente Erzeugung mit maßgeschneiderter optischer Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen' publication: Advanced Materials publication_identifier: issn: - 0935-9648 - 1521-4095 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Independent Wavefront Multiplexing with Metasurfaces via Non‐Injective Transformation type: journal_article user_id: '30525' volume: 38 year: '2026' ... --- _id: '65094' abstract: - lang: eng text: "\r\n The development of practical sensors for optical coherence tomography (OCT) with undetected photons requires miniaturization via integration. To be practical, these sensors must exhibit a large spectral bandwidth and a high brightness, which are linked to a high axial resolution and a sufficient signal-to-noise ratio, respectively. Here, we combine these requirements in a scheme for OCT measurements with undetected photons based on nonlinear\r\n \ \r\n \ Ti\r\n :\r\n \ \r\n \r\n Li\r\n \ Nb\r\n O\r\n \ \r\n 3\r\n \ \r\n \r\n waveguides. We investigate the performance benchmarks of the commonly used SU(1,1) scheme in comparison to an induced-coherence scheme and find that the latter is actually better suited when implementing measurements with undetected photons in integrated systems. In both schemes, we perform pump-gain optimization and OCT measurements with undetected photons with an axial resolution as low as\r\n \r\n 28\r\n \ \r\n μ\r\n \r\n m\r\n \r\n \r\n \ .\r\n " article_number: '034031' author: - first_name: Franz full_name: Roeder, Franz id: '88149' last_name: Roeder - first_name: René full_name: Pollmann, René id: '78890' last_name: Pollmann - first_name: Viktor full_name: Quiring, Viktor last_name: Quiring - first_name: Christof full_name: Eigner, Christof id: '13244' last_name: Eigner orcid: https://orcid.org/0000-0002-5693-3083 - first_name: Benjamin full_name: Brecht, Benjamin id: '27150' last_name: Brecht orcid: '0000-0003-4140-0556 ' - first_name: Christine full_name: Silberhorn, Christine id: '26263' last_name: Silberhorn citation: ama: Roeder F, Pollmann R, Quiring V, Eigner C, Brecht B, Silberhorn C. Toward integrated sensors for optimized optical coherence tomography with undetected photons. Physical Review Applied. 2026;25(3). doi:10.1103/cwsx-42c4 apa: Roeder, F., Pollmann, R., Quiring, V., Eigner, C., Brecht, B., & Silberhorn, C. (2026). Toward integrated sensors for optimized optical coherence tomography with undetected photons. Physical Review Applied, 25(3), Article 034031. https://doi.org/10.1103/cwsx-42c4 bibtex: '@article{Roeder_Pollmann_Quiring_Eigner_Brecht_Silberhorn_2026, title={Toward integrated sensors for optimized optical coherence tomography with undetected photons}, volume={25}, DOI={10.1103/cwsx-42c4}, number={3034031}, journal={Physical Review Applied}, publisher={American Physical Society (APS)}, author={Roeder, Franz and Pollmann, René and Quiring, Viktor and Eigner, Christof and Brecht, Benjamin and Silberhorn, Christine}, year={2026} }' chicago: Roeder, Franz, René Pollmann, Viktor Quiring, Christof Eigner, Benjamin Brecht, and Christine Silberhorn. “Toward Integrated Sensors for Optimized Optical Coherence Tomography with Undetected Photons.” Physical Review Applied 25, no. 3 (2026). https://doi.org/10.1103/cwsx-42c4. ieee: 'F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, and C. Silberhorn, “Toward integrated sensors for optimized optical coherence tomography with undetected photons,” Physical Review Applied, vol. 25, no. 3, Art. no. 034031, 2026, doi: 10.1103/cwsx-42c4.' mla: Roeder, Franz, et al. “Toward Integrated Sensors for Optimized Optical Coherence Tomography with Undetected Photons.” Physical Review Applied, vol. 25, no. 3, 034031, American Physical Society (APS), 2026, doi:10.1103/cwsx-42c4. short: F. Roeder, R. Pollmann, V. Quiring, C. Eigner, B. Brecht, C. Silberhorn, Physical Review Applied 25 (2026). date_created: 2026-03-23T12:28:33Z date_updated: 2026-03-25T07:59:04Z department: - _id: '15' - _id: '623' - _id: '288' doi: 10.1103/cwsx-42c4 intvolume: ' 25' issue: '3' language: - iso: eng publication: Physical Review Applied publication_identifier: issn: - 2331-7019 publication_status: published publisher: American Physical Society (APS) status: public title: Toward integrated sensors for optimized optical coherence tomography with undetected photons type: journal_article user_id: '27150' volume: 25 year: '2026' ... --- _id: '65108' abstract: - lang: eng text: "Abstract\r\n Lithographic surface patterning is a cornerstone of modern materials and device fabrication. Although the available lithography techniques are constantly being advanced to push the feature sizes down to the few-nanometer scale, such developments are associated with many technological and economic challenges. Combining established top-down lithography with bottom-up self-assembly strategies has the potential to overcome those challenges and enable the manipulation of matter with molecular precision. One of the most exciting approaches in this regard is to harness the programmability of DNA self-assembly to create precise DNA nanostructure masks to be used in the lithographic patterning of diverse substrates. DNA nanotechnology has provided us with a versatile toolbox for the high-yield synthesis of 2D and 3D nanostructures with complex, user-defined shapes at unprecedented molecular accuracy. Consequently, the last decade has seen intense research efforts aimed at transferring such DNA nanostructure shapes into functional organic and inorganic materials and we have now arrived at a point where sophisticated molecular lithography approaches utilize DNA nanostructure masks for the fabrication of plasmonic surfaces for metamaterials and sensing applications. This review summarizes how the spatial information of such DNA nanostructure masks can be transferred into various organic and inorganic materials through selective etching and deposition steps. The review also discusses recent developments toward all-purpose molecular lithography schemes and highlights promising extensions of the discussed methods toward new materials systems and application fields." author: - first_name: Adrian Clemens full_name: Keller, Adrian Clemens id: '48864' last_name: Keller orcid: 0000-0001-7139-3110 - first_name: Veikko full_name: Linko, Veikko last_name: Linko citation: ama: 'Keller AC, Linko V. Molecular lithography with DNA nanostructures: Methods and applications. Journal of Physics D: Applied Physics. Published online 2026. doi:10.1088/1361-6463/ae5667' apa: 'Keller, A. C., & Linko, V. (2026). Molecular lithography with DNA nanostructures: Methods and applications. Journal of Physics D: Applied Physics. https://doi.org/10.1088/1361-6463/ae5667' bibtex: '@article{Keller_Linko_2026, title={Molecular lithography with DNA nanostructures: Methods and applications}, DOI={10.1088/1361-6463/ae5667}, journal={Journal of Physics D: Applied Physics}, publisher={IOP Publishing}, author={Keller, Adrian Clemens and Linko, Veikko}, year={2026} }' chicago: 'Keller, Adrian Clemens, and Veikko Linko. “Molecular Lithography with DNA Nanostructures: Methods and Applications.” Journal of Physics D: Applied Physics, 2026. https://doi.org/10.1088/1361-6463/ae5667.' ieee: 'A. C. Keller and V. Linko, “Molecular lithography with DNA nanostructures: Methods and applications,” Journal of Physics D: Applied Physics, 2026, doi: 10.1088/1361-6463/ae5667.' mla: 'Keller, Adrian Clemens, and Veikko Linko. “Molecular Lithography with DNA Nanostructures: Methods and Applications.” Journal of Physics D: Applied Physics, IOP Publishing, 2026, doi:10.1088/1361-6463/ae5667.' short: 'A.C. Keller, V. Linko, Journal of Physics D: Applied Physics (2026).' date_created: 2026-03-25T07:43:24Z date_updated: 2026-03-25T07:44:52Z department: - _id: '302' doi: 10.1088/1361-6463/ae5667 language: - iso: eng publication: 'Journal of Physics D: Applied Physics' publication_identifier: issn: - 0022-3727 - 1361-6463 publication_status: published publisher: IOP Publishing status: public title: 'Molecular lithography with DNA nanostructures: Methods and applications' type: journal_article user_id: '48864' year: '2026' ... --- _id: '65178' abstract: - lang: eng text: "Large intermediate results can cause join queries to run unexpectedly long. This problem is particularly common for analytical queries, which aggregate data over many tables to produce a comparatively small final output, and queries on graph data, where intermediate results blow up quickly. Recent work inspired by Yannakakis’ algorithm approaches this by modifying the query engine to avoid materializing unnecessary tuples. However, this requires significant changes to the core of the system, which is not feasible in many situations such as cloud environments or proprietary systems.\r\nIn this work, we propose a flexible approach for optimizing long-running join queries from the outside of the DBMS. Rewriting-based realizations of Yannakakis’ algorithm suffer from inherent overhead due to the creation of intermediate tables. Thus, we present an approach for detecting and targeting queries which would benefit from a Yannakakis-style optimization. We introduce a new benchmark combining 5 standard benchmarks and augmenting them with additional instances, which provides a sufficient size and diversity for a machine learning based solution. On PostgreSQL, DuckDB and SparkSQL, slowdowns on queries where the rewriting is counterproductive are mostly avoided, as opposed to a naïve application of the rewriting, and we observe significant improvements in end-to-end runtimes over standard query execution and unconditional rewriting." author: - first_name: Daniela full_name: Böhm, Daniela last_name: Böhm - first_name: Georg full_name: Gottlob, Georg last_name: Gottlob - first_name: Matthias full_name: Lanzinger, Matthias last_name: Lanzinger - first_name: Davide Mario full_name: Longo, Davide Mario last_name: Longo - first_name: Cem full_name: Okulmus, Cem id: '114410' last_name: Okulmus orcid: 0000-0002-7742-0439 - first_name: Reinhard full_name: Pichler, Reinhard last_name: Pichler - first_name: Alexander full_name: Selzer, Alexander last_name: Selzer citation: ama: 'Böhm D, Gottlob G, Lanzinger M, et al. Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains. In: Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026). ; 2026.' apa: Böhm, D., Gottlob, G., Lanzinger, M., Longo, D. M., Okulmus, C., Pichler, R., & Selzer, A. (2026). Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains. Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026). bibtex: '@inproceedings{Böhm_Gottlob_Lanzinger_Longo_Okulmus_Pichler_Selzer_2026, place={Tampere, Finland}, title={Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains}, booktitle={Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026)}, author={Böhm, Daniela and Gottlob, Georg and Lanzinger, Matthias and Longo, Davide Mario and Okulmus, Cem and Pichler, Reinhard and Selzer, Alexander}, year={2026} }' chicago: Böhm, Daniela, Georg Gottlob, Matthias Lanzinger, Davide Mario Longo, Cem Okulmus, Reinhard Pichler, and Alexander Selzer. “Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains.” In Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026). Tampere, Finland, 2026. ieee: D. Böhm et al., “Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains,” 2026. mla: Böhm, Daniela, et al. “Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains.” Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026), 2026. short: 'D. Böhm, G. Gottlob, M. Lanzinger, D.M. Longo, C. Okulmus, R. Pichler, A. Selzer, in: Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026), Tampere, Finland, 2026.' date_created: 2026-03-27T15:20:54Z date_updated: 2026-03-27T15:22:01Z department: - _id: '888' keyword: - Join Queries - Acyclic Queries - Query Processing language: - iso: eng main_file_link: - open_access: '1' url: https://ceur-ws.org/Vol-4186/paper2.pdf oa: '1' place: Tampere, Finland publication: Proceedings of the 28th International Workshop on Design, Optimization, Languages and Analytical Processing of Big Data (DOLAP 2026) status: public title: Selective Use of Yannakakis’ Algorithm for Consistent Performance Gains type: conference user_id: '114410' year: '2026' ... --- _id: '65266' abstract: - lang: eng text: "ABSTRACT\r\n This work is concerned with the modeling of a cold‐box sand, a composition of sand grains and a resin binder. To this end, experiments are performed, which show the following characteristics: localization phenomena in the form of a shear band, softening behavior in the force‐displacement curve, and asymmetric behavior for compression and tension. To model this complex material behavior, a micromorphic continuum is used. In the present contribution, we focus on the linear‐elastic regime and demonstrate the identifiability of micromorphic material parameters under deliberately induced inhomogeneous deformation states. In addition to the degrees of freedom of a classical continuum, the micromorphic model has additional degrees of freedom, introduced here in a phenomenological sense to represent kinematically enriched deformation modes associated with the granular microstructure. Accordingly, the micromorphic fields are not interpreted as a separate physical scale (e.g., “binder” vs. “grains”), but as an effective continuum description at the specimen scale. This contribution addresses parameter identification for a micromorphic model of cold‐box sand, with a clear separation between homogeneous deformation states governing classical elastic parameters and inhomogeneous states required to activate and identify micromorphic length‐scale parameters. The main challenge lies in identifying the micro material parameters. To determine these, the corresponding gradient terms in the constitutive formulation must be triggered via properly tuned experiments. Micro‐parameter identification is demonstrated using synthetic data generated from a boundary‐value problem with inhomogeneous displacement fields. The chosen benchmark enables controlled activation of gradient terms and thereby renders optimization‐based identification of micromorphic parameters feasible. The synthetic example is deliberately chosen to assess feasibility and identifiability under controlled conditions, thereby isolating micromorphic identifiability aspects from experimental uncertainties. The novelty of the contribution lies in explicitly linking micromorphic parameter identifiability to kinematic inhomogeneity, and in demonstrating this link within a tractable forward– inverse setting for a linear‐elastic micromorphic continuum." article_number: e70093 author: - first_name: Alexander full_name: Börger, Alexander id: '52037' last_name: Börger - first_name: Rolf full_name: Mahnken, Rolf last_name: Mahnken - first_name: Ismail full_name: Caylak, Ismail id: '75' last_name: Caylak - first_name: Richard full_name: Ostwald, Richard id: '106876' last_name: Ostwald orcid: 0000-0003-2147-8444 citation: ama: Börger A, Mahnken R, Caylak I, Ostwald R. Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings in Applied Mathematics and Mechanics. 2026;26(2). doi:10.1002/pamm.70093 apa: Börger, A., Mahnken, R., Caylak, I., & Ostwald, R. (2026). Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand. Proceedings in Applied Mathematics and Mechanics, 26(2), Article e70093. https://doi.org/10.1002/pamm.70093 bibtex: '@article{Börger_Mahnken_Caylak_Ostwald_2026, title={Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand}, volume={26}, DOI={10.1002/pamm.70093}, number={2e70093}, journal={Proceedings in Applied Mathematics and Mechanics}, publisher={Wiley}, author={Börger, Alexander and Mahnken, Rolf and Caylak, Ismail and Ostwald, Richard}, year={2026} }' chicago: Börger, Alexander, Rolf Mahnken, Ismail Caylak, and Richard Ostwald. “Aspects of Parameter Identification for a Micromorphic Continuum Applied to a Cold‐Box Sand.” Proceedings in Applied Mathematics and Mechanics 26, no. 2 (2026). https://doi.org/10.1002/pamm.70093. ieee: 'A. Börger, R. Mahnken, I. Caylak, and R. Ostwald, “Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand,” Proceedings in Applied Mathematics and Mechanics, vol. 26, no. 2, Art. no. e70093, 2026, doi: 10.1002/pamm.70093.' mla: Börger, Alexander, et al. “Aspects of Parameter Identification for a Micromorphic Continuum Applied to a Cold‐Box Sand.” Proceedings in Applied Mathematics and Mechanics, vol. 26, no. 2, e70093, Wiley, 2026, doi:10.1002/pamm.70093. short: A. Börger, R. Mahnken, I. Caylak, R. Ostwald, Proceedings in Applied Mathematics and Mechanics 26 (2026). date_created: 2026-04-01T04:52:34Z date_updated: 2026-04-01T04:54:17Z department: - _id: '9' - _id: '952' - _id: '321' doi: 10.1002/pamm.70093 intvolume: ' 26' issue: '2' language: - iso: eng publication: Proceedings in Applied Mathematics and Mechanics publication_identifier: issn: - 1617-7061 - 1617-7061 publication_status: published publisher: Wiley quality_controlled: '1' status: public title: Aspects of Parameter Identification for a Micromorphic Continuum applied to a Cold‐Box Sand type: journal_article user_id: '85414' volume: 26 year: '2026' ... --- _id: '61152' abstract: - lang: eng text: While neural network quantization effectively reduces the cost of matrix multiplications, aggressive quantization can expose non-matrix-multiply operations as significant performance and resource bottlenecks on embedded systems. Addressing such bottlenecks requires a comprehensive approach to tailoring the precision across operations in the inference computation. To this end, we introduce scaled-integer range analysis (SIRA), a static analysis technique employing interval arithmetic to determine the range, scale, and bias for tensors in quantized neural networks. We show how this information can be exploited to reduce the resource footprint of FPGA dataflow neural network accelerators via tailored bitwidth adaptation for accumulators and downstream operations, aggregation of scales and biases, and conversion of consecutive elementwise operations to thresholding operations. We integrate SIRA-driven optimizations into the open-source FINN framework, then evaluate their effectiveness across a range of quantized neural network workloads and compare implementation alternatives for non-matrix-multiply operations. We demonstrate an average reduction of 17\% for LUTs, 66\% for DSPs, and 22\% for accumulator bitwidths with SIRA optimizations, providing detailed benchmark analysis and analytical models to guide the implementation style for non-matrix layers. Finally, we open-source SIRA to facilitate community exploration of its benefits across various applications and hardware platforms. author: - first_name: Yaman full_name: Umuroglu, Yaman last_name: Umuroglu - first_name: Christoph full_name: Berganski, Christoph id: '98854' last_name: Berganski - first_name: Felix full_name: Jentzsch, Felix id: '55631' last_name: Jentzsch orcid: 0000-0003-4987-5708 - first_name: Michal full_name: Danilowicz, Michal last_name: Danilowicz - first_name: Tomasz full_name: Kryjak, Tomasz last_name: Kryjak - first_name: Charalampos full_name: Bezaitis, Charalampos last_name: Bezaitis - first_name: Magnus full_name: Sjalander, Magnus last_name: Sjalander - first_name: Ian full_name: Colbert, Ian last_name: Colbert - first_name: Thomas full_name: Preusser, Thomas last_name: Preusser - first_name: Jakoba full_name: Petri-Koenig, Jakoba last_name: Petri-Koenig - first_name: Michaela full_name: Blott, Michaela last_name: Blott citation: ama: 'Umuroglu Y, Berganski C, Jentzsch F, et al. SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators. ACM Transactions on Reconfigurable Technology and Systems. doi:10.1145/3807510' apa: 'Umuroglu, Y., Berganski, C., Jentzsch, F., Danilowicz, M., Kryjak, T., Bezaitis, C., Sjalander, M., Colbert, I., Preusser, T., Petri-Koenig, J., & Blott, M. (n.d.). SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators. ACM Transactions on Reconfigurable Technology and Systems. https://doi.org/10.1145/3807510' bibtex: '@article{Umuroglu_Berganski_Jentzsch_Danilowicz_Kryjak_Bezaitis_Sjalander_Colbert_Preusser_Petri-Koenig_et al., title={SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators}, DOI={10.1145/3807510}, journal={ACM Transactions on Reconfigurable Technology and Systems}, author={Umuroglu, Yaman and Berganski, Christoph and Jentzsch, Felix and Danilowicz, Michal and Kryjak, Tomasz and Bezaitis, Charalampos and Sjalander, Magnus and Colbert, Ian and Preusser, Thomas and Petri-Koenig, Jakoba and et al.} }' chicago: 'Umuroglu, Yaman, Christoph Berganski, Felix Jentzsch, Michal Danilowicz, Tomasz Kryjak, Charalampos Bezaitis, Magnus Sjalander, et al. “SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators.” ACM Transactions on Reconfigurable Technology and Systems, n.d. https://doi.org/10.1145/3807510.' ieee: 'Y. Umuroglu et al., “SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators,” ACM Transactions on Reconfigurable Technology and Systems, doi: 10.1145/3807510.' mla: 'Umuroglu, Yaman, et al. “SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators.” ACM Transactions on Reconfigurable Technology and Systems, doi:10.1145/3807510.' short: Y. Umuroglu, C. Berganski, F. Jentzsch, M. Danilowicz, T. Kryjak, C. Bezaitis, M. Sjalander, I. Colbert, T. Preusser, J. Petri-Koenig, M. Blott, ACM Transactions on Reconfigurable Technology and Systems (n.d.). date_created: 2025-09-08T14:10:39Z date_updated: 2026-04-27T14:13:50Z department: - _id: '78' doi: 10.1145/3807510 language: - iso: eng project: - _id: '52' name: Computing Resources Provided by the Paderborn Center for Parallel Computing publication: ACM Transactions on Reconfigurable Technology and Systems publication_identifier: issn: - 1936-7406 publication_status: submitted status: public title: 'SIRA: Scaled-Integer Range Analysis for Optimizing FPGA Dataflow Neural Network Accelerators' type: journal_article user_id: '55631' year: '2026' ... --- _id: '65515' abstract: - lang: eng text: Abstract This study explores the usability and onboarding process of a Mixed Reality (MR) application called PEARL, designed to prepare students for laboratory work. Originally developed for mobile Augmented Reality (mAR), PEARL was adapted for MR to offer a more immersive and intuitive experience through hand and gesture controls. Since many students lack experience with MR devices, a user-friendly onboarding system is essential. The study aims to redesign PEARL’s user interface and onboarding experience, evaluating how intuitive interaction elements impact usability. First, a literature review will identify existing usability guidelines for MR applications, which will guide the redesign of the interface. This new version will then be tested with students through a user study. Feedback will be collected via an online survey to assess the onboarding and user experience, and the findings will be used to refine the design further. The expected outcome is an improved onboarding process and interface, making PEARL accessible even for MR novices, enhancing their ability to interact with 3D objects in a real-world setting. Ultimately, the study aims to provide best practices for developing intuitive MR interfaces and effective onboarding experiences, especially in educational contexts. author: - first_name: Mesut full_name: Alptekin, Mesut id: '11763' last_name: Alptekin orcid: 0009-0004-8545-1165 - first_name: Daniel full_name: Münstermann, Daniel last_name: Münstermann - first_name: Katrin full_name: Temmen, Katrin last_name: Temmen citation: ama: 'Alptekin M, Münstermann D, Temmen K. Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3. In: Lecture Notes in Networks and Systems. Vol 2. Smart Technologies for an All-Electric Society. Springer Nature Switzerland; 2026:199-211. doi:10.1007/978-3-032-07319-8_19' apa: 'Alptekin, M., Münstermann, D., & Temmen, K. (2026). Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3. In Lecture Notes in Networks and Systems (Vol. 2, pp. 199–211). Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-07319-8_19' bibtex: '@inbook{Alptekin_Münstermann_Temmen_2026, place={Cham}, series={Smart Technologies for an All-Electric Society}, title={Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3}, volume={2}, DOI={10.1007/978-3-032-07319-8_19}, booktitle={Lecture Notes in Networks and Systems}, publisher={Springer Nature Switzerland}, author={Alptekin, Mesut and Münstermann, Daniel and Temmen, Katrin}, year={2026}, pages={199–211}, collection={Smart Technologies for an All-Electric Society} }' chicago: 'Alptekin, Mesut, Daniel Münstermann, and Katrin Temmen. “Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3.” In Lecture Notes in Networks and Systems, 2:199–211. Smart Technologies for an All-Electric Society. Cham: Springer Nature Switzerland, 2026. https://doi.org/10.1007/978-3-032-07319-8_19.' ieee: 'M. Alptekin, D. Münstermann, and K. Temmen, “Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3,” in Lecture Notes in Networks and Systems, vol. 2, Cham: Springer Nature Switzerland, 2026, pp. 199–211.' mla: 'Alptekin, Mesut, et al. “Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3.” Lecture Notes in Networks and Systems, vol. 2, Springer Nature Switzerland, 2026, pp. 199–211, doi:10.1007/978-3-032-07319-8_19.' short: 'M. Alptekin, D. Münstermann, K. Temmen, in: Lecture Notes in Networks and Systems, Springer Nature Switzerland, Cham, 2026, pp. 199–211.' conference: end_date: 2025-04-11 location: Santiago, Chile name: International Conference on Smart Technologies & Education (STE2025) start_date: 2025-04-09 date_created: 2026-04-29T09:12:41Z date_updated: 2026-04-29T09:23:02Z department: - _id: '34' - _id: '3' - _id: '300' doi: 10.1007/978-3-032-07319-8_19 intvolume: ' 2' keyword: - Meta Quest 3 - Augmented Reality - Mixed Reality - PEARL - Electrical Engineering - Laboratory Training - Onboarding - User Experience - User Interface - Heuristics language: - iso: eng page: 199-211 place: Cham publication: Lecture Notes in Networks and Systems publication_identifier: isbn: - '9783032073181' - '9783032073198' issn: - 2367-3370 - 2367-3389 publication_status: published publisher: Springer Nature Switzerland series_title: Smart Technologies for an All-Electric Society status: public title: 'Designing and Evaluating the Usability and Onboarding for a Mixed-Reality Application: A Case Study with PEARL (Paderborn Electrical Engineering AR Laboratory) and Meta Quest 3' type: book_chapter user_id: '11763' volume: 2 year: '2026' ... --- _id: '61441' abstract: - lang: ger text: "Das hochschuldidaktische Konzept des Forschenden Lernens gilt als zentrales Element der universitären Lehrkräftebildung in Deutschland und ist in fast allen Bundesländern Bestandteil des Praxissemesters. Damit einhergehende Erwartungen im Hinblick auf den Professionalisierungsprozess von Lehrkräften fokussieren insbesondere die Vermittlung einer forschenden Grundhaltung, die auf eine nicht-wissenschaftsferne Berufsausübung abzielt. Wir fassen die forschende Grundhaltung als Professionsüberzeugung, die aus einer kognitiven, affektiven und handlungsbezogenen Komponente besteht und untersuchen die Komponenten im Zusammenspiel sowie im Längsschnitt.\r\n \ Mittels teilstrukturierter Interviews mit 22 angehenden Lehrkräften im Referendariat und Berufseinstieg, die sich im Praxissemester mit Forschendem Lernen befasst haben, werden das Verständnis (kognitive Komponente) und die Bedeutsamkeit (affektive und handlungsbezogene Komponente) Forschenden Lernens in der jeweiligen Ausbildungs- bzw. Berufsphase erfragt. Die Daten werden inhaltsanalytisch sowie typenbildend ausgewertet, um das Verständnis und die Bedeutsamkeit in der jeweiligen Phase, längsschnittliche Entwicklungen sowie das Verhältnis von Verständnis und Bedeutsamkeit herauszuarbeiten. Die Befunde zeigen, dass die Verständnisse von Forschendem Lernen sowohl im Referendariat als auch im Berufseinstieg variieren. Zudem ist das Konzept – laut Schilderungen der Befragten – durchaus bedeutsam für ihre Lern- und Handlungspraxis, jedoch nicht für alle und in unterschiedlich ausgeprägter Form. Die Typenbildung verdeutlicht, dass die fehlende Bedeutsamkeit Forschenden Lernens mit Fehlkonzepten einhergeht und eine höhere Bedeutsamkeit erkennbar ist, wenn Adaptionsleistungen hinsichtlich des Konzepts vorgenommen werden. Insgesamt ist im Sinne der Auffassung als Professionsüberzeugung die Anbahnung einer forschenden Grundhaltung bei einigen Befragten erkennbar. Implikationen für eine künftige Hochschulbildung ergeben sich u. a. mit Blick auf die Unterstützung von Studierenden bei Adaptionsleistungen für die (jeweilige) Praxis." alternative_title: - Perspectives of prospective teachers on research-based learning—a qualitative longitudinal study during teacher training and career entry author: - first_name: Martina full_name: Homt, Martina id: '11674' last_name: Homt - first_name: Bea full_name: Bloh, Bea id: '69910' last_name: Bloh - first_name: Janis full_name: Wehde, Janis id: '82257' last_name: Wehde orcid: 0009-0008-0720-7828 citation: ama: Homt M, Bloh B, Wehde J. Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg. Zeitschrift für Bildungsforschung. Published online 2026. doi:10.1007/s35834-025-00506-4 apa: Homt, M., Bloh, B., & Wehde, J. (2026). Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg. Zeitschrift für Bildungsforschung. https://doi.org/10.1007/s35834-025-00506-4 bibtex: '@article{Homt_Bloh_Wehde_2026, title={Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg}, DOI={10.1007/s35834-025-00506-4}, journal={Zeitschrift für Bildungsforschung}, publisher={Springer Science and Business Media LLC}, author={Homt, Martina and Bloh, Bea and Wehde, Janis}, year={2026} }' chicago: Homt, Martina, Bea Bloh, and Janis Wehde. “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg.” Zeitschrift für Bildungsforschung, 2026. https://doi.org/10.1007/s35834-025-00506-4. ieee: 'M. Homt, B. Bloh, and J. Wehde, “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg,” Zeitschrift für Bildungsforschung, 2026, doi: 10.1007/s35834-025-00506-4.' mla: Homt, Martina, et al. “Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg.” Zeitschrift für Bildungsforschung, Springer Science and Business Media LLC, 2026, doi:10.1007/s35834-025-00506-4. short: M. Homt, B. Bloh, J. Wehde, Zeitschrift für Bildungsforschung (2026). date_created: 2025-09-25T08:41:00Z date_updated: 2026-05-13T11:04:50Z department: - _id: '456' - _id: '43' doi: 10.1007/s35834-025-00506-4 language: - iso: ger main_file_link: - open_access: '1' url: https://doi.org/10.1007/s35834-025-00506-4 oa: '1' publication: Zeitschrift für Bildungsforschung publication_identifier: issn: - 2190-6890 - 2190-6904 publication_status: published publisher: Springer Science and Business Media LLC quality_controlled: '1' status: public title: Perspektiven angehender Lehrkräfte auf Forschendes Lernen – eine qualitative Längsschnittstudie im Referendariat und Berufseinstieg type: journal_article user_id: '11674' year: '2026' ... --- _id: '65013' author: - first_name: Marvin full_name: Illian, Marvin id: '44169' last_name: Illian orcid: 0009-0007-2992-8346 - first_name: Ramin full_name: Khalili, Ramin last_name: Khalili - first_name: Antonio full_name: A. de A. Rocha, Antonio last_name: A. de A. Rocha - first_name: Lin full_name: Wang, Lin id: '102868' last_name: Wang orcid: 0000-0001-7181-6128 citation: ama: 'Illian M, Khalili R, A. de A. Rocha A, Wang L. Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning. In: 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt). IFIP; 2026.' apa: 'Illian, M., Khalili, R., A. de A. Rocha, A., & Wang, L. (2026). Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning. 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt).' bibtex: '@inproceedings{Illian_Khalili_A. de A. Rocha_Wang_2026, title={Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning}, booktitle={2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt)}, publisher={IFIP}, author={Illian, Marvin and Khalili, Ramin and A. de A. Rocha, Antonio and Wang, Lin}, year={2026} }' chicago: 'Illian, Marvin, Ramin Khalili, Antonio A. de A. Rocha, and Lin Wang. “Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning.” In 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt). IFIP, 2026.' ieee: 'M. Illian, R. Khalili, A. A. de A. Rocha, and L. Wang, “Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning,” 2026.' mla: 'Illian, Marvin, et al. “Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning.” 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), IFIP, 2026.' short: 'M. Illian, R. Khalili, A. A. de A. Rocha, L. Wang, in: 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt), IFIP, 2026.' date_created: 2026-03-16T14:46:45Z date_updated: 2026-05-20T08:45:27Z department: - _id: '75' language: - iso: eng publication: 2026 24th International Symposium on Modeling and Optimization in Mobile, Ad Hoc, and Wireless Networks (WiOpt) publisher: IFIP quality_controlled: '1' status: public title: 'Cells on Autopilot: Adaptive Cell (Re)Selection via Reinforcement Learning' type: conference user_id: '44169' year: '2026' ... --- _id: '45284' author: - first_name: Yvonne full_name: Webersen, Yvonne id: '9605' last_name: Webersen orcid: 0009-0009-6583-8692 - first_name: Fardien full_name: Daud, Fardien last_name: Daud citation: ama: Webersen Y, Daud F. Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe. MNU Journal. apa: Webersen, Y., & Daud, F. (n.d.). Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe. MNU Journal. bibtex: '@article{Webersen_Daud, title={Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe}, journal={MNU Journal}, author={Webersen, Yvonne and Daud, Fardien} }' chicago: Webersen, Yvonne, and Fardien Daud. “Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe.” MNU Journal, n.d. ieee: Y. Webersen and F. Daud, “Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe,” MNU Journal. mla: Webersen, Yvonne, and Fardien Daud. “Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe.” MNU Journal. short: Y. Webersen, F. Daud, MNU Journal (n.d.). date_created: 2023-05-25T14:42:35Z date_updated: 2026-05-21T12:29:01Z department: - _id: '299' language: - iso: ger publication: MNU Journal publication_status: accepted status: public title: Was steckt drin? Blackboxen aus dem 3D-Drucker für den Mechanikunterricht der Oberstufe type: journal_article user_id: '9605' year: '2026' ... --- _id: '66007' abstract: - lang: eng text: The reduction of CO2-emissions in the chemical industry is essential to meet European climate targets. Particularly, the reliance on fossil fuels for process heat supply is a key factor for CO2-emissions. Electrically driven compression heat pumps are a promising option to reduce fossil fuel consumption by upgrading low-temperature waste heat to a higher temperature level, provided that low-carbon electricity is available. However, the integration of heat pumps into chemical utility systems remains a challenge due to economic constraints and the high complexity associated with site-wide heat integration and retrofit of existing structures. This work presents a mixed-integer linear programming (MILP) approach for the optimization of utility systems with integrated heat pumps. To address computational complexity, candidate utility temperature levels are pre-selected, and feasible heat pump coefficients of performance (COP) are precomputed. The framework is applied to both greenfield and retrofit scenarios for a synthetic case study consisting of 400 process streams. In the greenfield scenario, optimal utility temperature levels and heat pump integration configurations are identified. For the retrofit scenario, temperature levels of an existing utility system are modified to reduce total annual costs (TAC). Additionally, sensitivity analysis is conducted to assess the influence of key economic and environmental parameters. The presented case studies demonstrate short solution times, highlighting the suitability of the proposed framework for screening studies and systematic sensitivity analyses in early-stage design and retrofit applications. author: - first_name: Thorben full_name: Hochhaus, Thorben last_name: Hochhaus - first_name: Marcus full_name: Grünewald, Marcus last_name: Grünewald - first_name: Julia full_name: Riese, Julia id: '101499' last_name: Riese orcid: 0000-0002-3053-0534 citation: ama: 'Hochhaus T, Grünewald M, Riese J. Optimization of Site-wide Heat-Integrated Utility Systems with Heat Pumps using MILP. In: Systems and Control Transactions. Vol 6. PSE Press; 2026. doi:10.69997/sct.152209' apa: Hochhaus, T., Grünewald, M., & Riese, J. (2026). Optimization of Site-wide Heat-Integrated Utility Systems with Heat Pumps using MILP. Systems and Control Transactions, 6. https://doi.org/10.69997/sct.152209 bibtex: '@inproceedings{Hochhaus_Grünewald_Riese_2026, title={Optimization of Site-wide Heat-Integrated Utility Systems with Heat Pumps using MILP}, volume={6}, DOI={10.69997/sct.152209}, booktitle={Systems and Control Transactions}, publisher={PSE Press}, author={Hochhaus, Thorben and Grünewald, Marcus and Riese, Julia}, year={2026} }' chicago: Hochhaus, Thorben, Marcus Grünewald, and Julia Riese. “Optimization of Site-Wide Heat-Integrated Utility Systems with Heat Pumps Using MILP.” In Systems and Control Transactions, Vol. 6. PSE Press, 2026. https://doi.org/10.69997/sct.152209. ieee: 'T. Hochhaus, M. Grünewald, and J. Riese, “Optimization of Site-wide Heat-Integrated Utility Systems with Heat Pumps using MILP,” in Systems and Control Transactions, 2026, vol. 6, doi: 10.69997/sct.152209.' mla: Hochhaus, Thorben, et al. “Optimization of Site-Wide Heat-Integrated Utility Systems with Heat Pumps Using MILP.” Systems and Control Transactions, vol. 6, PSE Press, 2026, doi:10.69997/sct.152209. short: 'T. Hochhaus, M. Grünewald, J. Riese, in: Systems and Control Transactions, PSE Press, 2026.' date_created: 2026-06-22T11:32:30Z date_updated: 2026-06-22T11:33:05Z department: - _id: '831' doi: 10.69997/sct.152209 intvolume: ' 6' language: - iso: eng publication: Systems and Control Transactions publication_identifier: issn: - 2818-4734 publication_status: published publisher: PSE Press quality_controlled: '1' status: public title: Optimization of Site-wide Heat-Integrated Utility Systems with Heat Pumps using MILP type: conference user_id: '101499' volume: 6 year: '2026' ...