[{"publication":"ESANN 2026 proceedings","citation":{"bibtex":"@inproceedings{Roberts_Kamdem Teyou_Schulz_Kouagou_Ngonga Ngomo_Hammer_2026, title={A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras}, DOI={<a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">10.14428/esann/2026.es2026-283</a>}, booktitle={ESANN 2026 proceedings}, publisher={Ciaco - i6doc.com}, author={Roberts, Isaac and Kamdem Teyou, Louis Mozart and Schulz, Alexander and Kouagou, N’Dah Jean and Ngonga Ngomo, Axel-Cyrille and Hammer, Barbara}, year={2026} }","ama":"Roberts I, Kamdem Teyou LM, Schulz A, Kouagou NJ, Ngonga Ngomo A-C, Hammer B. A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras. In: <i>ESANN 2026 Proceedings</i>. Ciaco - i6doc.com; 2026. doi:<a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">10.14428/esann/2026.es2026-283</a>","mla":"Roberts, Isaac, et al. “A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras.” <i>ESANN 2026 Proceedings</i>, Ciaco - i6doc.com, 2026, doi:<a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">10.14428/esann/2026.es2026-283</a>.","chicago":"Roberts, Isaac, Louis Mozart Kamdem Teyou, Alexander Schulz, N’Dah Jean Kouagou, Axel-Cyrille Ngonga Ngomo, and Barbara Hammer. “A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras.” In <i>ESANN 2026 Proceedings</i>. Ciaco - i6doc.com, 2026. <a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">https://doi.org/10.14428/esann/2026.es2026-283</a>.","short":"I. Roberts, L.M. Kamdem Teyou, A. Schulz, N.J. Kouagou, A.-C. Ngonga Ngomo, B. Hammer, in: ESANN 2026 Proceedings, Ciaco - i6doc.com, 2026.","ieee":"I. Roberts, L. M. Kamdem Teyou, A. Schulz, N. J. Kouagou, A.-C. Ngonga Ngomo, and B. Hammer, “A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras,” 2026, doi: <a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">10.14428/esann/2026.es2026-283</a>.","apa":"Roberts, I., Kamdem Teyou, L. M., Schulz, A., Kouagou, N. J., Ngonga Ngomo, A.-C., &#38; Hammer, B. (2026). A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras. <i>ESANN 2026 Proceedings</i>. <a href=\"https://doi.org/10.14428/esann/2026.es2026-283\">https://doi.org/10.14428/esann/2026.es2026-283</a>"},"date_created":"2026-05-29T14:18:30Z","type":"conference","year":"2026","status":"public","title":"A Possible Human-Centered Embedding Space Search in Degenerate Clifford Algebras","author":[{"full_name":"Roberts, Isaac","last_name":"Roberts","first_name":"Isaac"},{"full_name":"Kamdem Teyou, Louis Mozart","last_name":"Kamdem Teyou","first_name":"Louis Mozart","id":"101165"},{"full_name":"Schulz, Alexander","last_name":"Schulz","first_name":"Alexander"},{"last_name":"Kouagou","first_name":"N'Dah Jean","full_name":"Kouagou, N'Dah Jean"},{"full_name":"Ngonga Ngomo, Axel-Cyrille","last_name":"Ngonga Ngomo","first_name":"Axel-Cyrille","id":"65716"},{"last_name":"Hammer","first_name":"Barbara","full_name":"Hammer, Barbara"}],"date_updated":"2026-05-29T14:23:40Z","publication_status":"published","_id":"65735","publisher":"Ciaco - i6doc.com","language":[{"iso":"eng"}],"doi":"10.14428/esann/2026.es2026-283","user_id":"101165"},{"citation":{"mla":"As, Donat Josef, et al. “X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates.” <i>Physica Status Solidi (b)</i>, vol. 263, no. 2, e202500477, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/pssb.202500477\">10.1002/pssb.202500477</a>.","bibtex":"@article{As_Meier_Mahler_Meier_2026, title={X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates}, volume={263}, DOI={<a href=\"https://doi.org/10.1002/pssb.202500477\">10.1002/pssb.202500477</a>}, number={2e202500477}, journal={physica status solidi (b)}, publisher={Wiley}, author={As, Donat Josef and Meier, Falco and Mahler, Pascal and Meier, Cedrik}, year={2026} }","ama":"As DJ, Meier F, Mahler P, Meier C. X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates. <i>physica status solidi (b)</i>. 2026;263(2). doi:<a href=\"https://doi.org/10.1002/pssb.202500477\">10.1002/pssb.202500477</a>","ieee":"D. J. As, F. Meier, P. Mahler, and C. Meier, “X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates,” <i>physica status solidi (b)</i>, vol. 263, no. 2, Art. no. e202500477, 2026, doi: <a href=\"https://doi.org/10.1002/pssb.202500477\">10.1002/pssb.202500477</a>.","apa":"As, D. J., Meier, F., Mahler, P., &#38; Meier, C. (2026). X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates. <i>Physica Status Solidi (b)</i>, <i>263</i>(2), Article e202500477. <a href=\"https://doi.org/10.1002/pssb.202500477\">https://doi.org/10.1002/pssb.202500477</a>","chicago":"As, Donat Josef, Falco Meier, Pascal Mahler, and Cedrik Meier. “X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates.” <i>Physica Status Solidi (b)</i> 263, no. 2 (2026). <a href=\"https://doi.org/10.1002/pssb.202500477\">https://doi.org/10.1002/pssb.202500477</a>.","short":"D.J. As, F. Meier, P. Mahler, C. Meier, Physica Status Solidi (b) 263 (2026)."},"volume":263,"user_id":"20798","_id":"65741","publisher":"Wiley","status":"public","department":[{"_id":"15"}],"type":"journal_article","date_created":"2026-06-01T09:22:04Z","abstract":[{"text":"<jats:p>\r\n                    This work investigates the temperature dependence of the lattice constant\r\n                    <jats:italic>a</jats:italic>\r\n                    <jats:sub>exp</jats:sub>\r\n                    of cubic GaN/3C‐SiC/Si (001) epilayers grown at 740°C by plasma‐assisted molecular beam epitaxy is investigated. High resolution X‐ray diffraction is performed to determine the lattice constant, using an Anton–Paar DHS1100 stage to vary the sample temperature from 25°C to 900°C, calibrated against the underlying single‐crystalline silicon substrate. A linear increase in\r\n                    <jats:italic>a</jats:italic>\r\n                    <jats:sub>exp</jats:sub>\r\n                    with rising temperature is observed. The thermal expansion behaviour is modelled using Debye´s phonon dispersion. The fitted lattice parameters are used to calculate the thermal expansion coefficient (TEC). At room temperature the TEC is determined to be\r\n                    <jats:italic>α</jats:italic>\r\n                    <jats:sub>Debye </jats:sub>\r\n                    ≈ 5.25 × 10\r\n                    <jats:sup>−6</jats:sup>\r\n                     K\r\n                    <jats:sup>−1</jats:sup>\r\n                    . We further compare the TEC of the cubic GaN epilayer to that of free‐standing hexagonal GaN using the crystallographic relationship of , demonstrating good agreement between both phases. Using literature values for the elastic constants of cubic GaN, the corresponding elastic moduli and Debye temperature Θ\r\n                    <jats:sub>D</jats:sub>\r\n                    are calculated. An average value of Θ\r\n                    <jats:sub>D</jats:sub>\r\n                    of ≈905 ± 25 K is obtained, which is very close to our experimental results. Moreover, tensile strain is found to be present in our sample at room temperature, leading to an increase in the TEC. The impact of strain on the thermal properties of cubic GaN is discussed.\r\n                  </jats:p>","lang":"eng"}],"issue":"2","publication":"physica status solidi (b)","doi":"10.1002/pssb.202500477","language":[{"iso":"eng"}],"article_number":"e202500477","article_type":"original","intvolume":"       263","publication_status":"published","date_updated":"2026-06-01T09:23:41Z","publication_identifier":{"issn":["0370-1972","1521-3951"]},"author":[{"id":"14","first_name":"Donat Josef","last_name":"As","orcid":"0000-0003-1121-3565","full_name":"As, Donat Josef"},{"first_name":"Falco","last_name":"Meier","full_name":"Meier, Falco"},{"first_name":"Pascal","last_name":"Mahler","full_name":"Mahler, Pascal"},{"full_name":"Meier, Cedrik","last_name":"Meier","first_name":"Cedrik","orcid":"https://orcid.org/0000-0002-3787-3572","id":"20798"}],"title":"X‐Ray Investigation of the Thermal Expansion Coefficient of Cubic Gallium Nitride on 3C‐SiC (001)/Si (001) Substrates","year":"2026"},{"type":"journal_article","department":[{"_id":"94"}],"date_created":"2026-06-01T09:36:09Z","abstract":[{"text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>In this work, we address the numerical identification of entanglement in dynamical scenarios. To this end, we consider different programs based on the restriction of the evolution to the set of separable (i.e., non-entangled) states, together with the discretization of the space of variables for numerical computations. As a first approach, we apply linear splitting methods to the restricted, continuous equations of motion derived from variational principles. We utilize an exchange interaction Hamiltonian to confirm that the numerical and analytical solutions coincide in the limit of small time steps. The application to different Hamiltonians shows the wide applicability of the method to detect dynamical entanglement. To avoid the derivation of analytical solutions for complex dynamics, we consider variational, numerical integration schemes, introducing a variational discretization for Lagrangians linear in velocities. Here, we examine and compare two approaches: one in which the system is discretized before the restriction is applied, and another in which the restriction precedes the discretization. We find that the \"first-discretize-then-restrict\" method becomes numerically unstable, already for the example of an exchange-interaction Hamiltonian, which can be an important consideration for the numerical analysis of constrained quantum dynamics. Thereby, broadly applicable numerical tools, including their limitations, for studying entanglement over time are established for assessing the entangling power of processes that are used in quantum information theory.</jats:p>","lang":"eng"}],"publication":"Journal of Physics A: Mathematical and Theoretical","citation":{"apa":"Offen, C., Wembe, B., Ares, L., Sperling, J., &#38; Ober-Blöbaum, S. (2026). Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>","ieee":"C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical approaches to entangling dynamics from variational principles,” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026, doi: <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>.","chicago":"Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>.","short":"C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics A: Mathematical and Theoretical (2026).","mla":"Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>.","ama":"Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>","bibtex":"@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical approaches to entangling dynamics from variational principles}, DOI={<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing}, author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and Ober-Blöbaum, Sina}, year={2026} }"},"doi":"10.1088/1751-8121/ae6d51","user_id":"95394","publisher":"IOP Publishing","_id":"65745","language":[{"iso":"eng"}],"date_updated":"2026-06-01T09:36:17Z","publication_status":"published","status":"public","title":"Numerical approaches to entangling dynamics from variational principles","year":"2026","publication_identifier":{"issn":["1751-8113","1751-8121"]},"author":[{"last_name":"Offen","first_name":"Christian","full_name":"Offen, Christian"},{"full_name":"Wembe, Boris","last_name":"Wembe","first_name":"Boris"},{"last_name":"Ares","first_name":"Laura","full_name":"Ares, Laura"},{"full_name":"Sperling, Jan","first_name":"Jan","last_name":"Sperling"},{"first_name":"Sina","last_name":"Ober-Blöbaum","full_name":"Ober-Blöbaum, Sina"}]},{"publication":"Journal of Physics A: Mathematical and Theoretical","citation":{"ama":"Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>","bibtex":"@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical approaches to entangling dynamics from variational principles}, DOI={<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing}, author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and Ober-Blöbaum, Sina}, year={2026} }","mla":"Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>.","short":"C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics A: Mathematical and Theoretical (2026).","chicago":"Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>.","apa":"Offen, C., Wembe, B., Ares, L., Sperling, J., &#38; Ober-Blöbaum, S. (2026). Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>","ieee":"C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical approaches to entangling dynamics from variational principles,” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026, doi: <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>."},"abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>In this work, we address the numerical identification of entanglement in dynamical scenarios. To this end, we consider different programs based on the restriction of the evolution to the set of separable (i.e., non-entangled) states, together with the discretization of the space of variables for numerical computations. As a first approach, we apply linear splitting methods to the restricted, continuous equations of motion derived from variational principles. We utilize an exchange interaction Hamiltonian to confirm that the numerical and analytical solutions coincide in the limit of small time steps. The application to different Hamiltonians shows the wide applicability of the method to detect dynamical entanglement. To avoid the derivation of analytical solutions for complex dynamics, we consider variational, numerical integration schemes, introducing a variational discretization for Lagrangians linear in velocities. Here, we examine and compare two approaches: one in which the system is discretized before the restriction is applied, and another in which the restriction precedes the discretization. We find that the \"first-discretize-then-restrict\" method becomes numerically unstable, already for the example of an exchange-interaction Hamiltonian, which can be an important consideration for the numerical analysis of constrained quantum dynamics. Thereby, broadly applicable numerical tools, including their limitations, for studying entanglement over time are established for assessing the entangling power of processes that are used in quantum information theory.</jats:p>"}],"date_created":"2026-06-01T09:29:01Z","type":"journal_article","department":[{"_id":"94"}],"year":"2026","status":"public","title":"Numerical approaches to entangling dynamics from variational principles","publication_identifier":{"issn":["1751-8113","1751-8121"]},"author":[{"full_name":"Offen, Christian","last_name":"Offen","first_name":"Christian"},{"full_name":"Wembe, Boris","last_name":"Wembe","first_name":"Boris"},{"full_name":"Ares, Laura","first_name":"Laura","last_name":"Ares"},{"last_name":"Sperling","first_name":"Jan","full_name":"Sperling, Jan"},{"first_name":"Sina","last_name":"Ober-Blöbaum","full_name":"Ober-Blöbaum, Sina"}],"publication_status":"published","date_updated":"2026-06-01T09:29:29Z","language":[{"iso":"eng"}],"_id":"65742","publisher":"IOP Publishing","user_id":"95394","doi":"10.1088/1751-8121/ae6d51"},{"date_created":"2026-06-01T09:38:06Z","type":"conference","department":[{"_id":"94"}],"citation":{"apa":"Wembe Moafo, B. E., Ali, U., Meier, T., &#38; Ober-Blöbaum, S. (2026). <i>Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control</i>. European Control Conference, Reykjavík, Iceland. <a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">https://doi.org/10.48550/ARXIV.2603.11697</a>","ieee":"B. E. Wembe Moafo, U. Ali, T. Meier, and S. Ober-Blöbaum, “Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control,” presented at the European Control Conference, Reykjavík, Iceland, 2026, doi: <a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">10.48550/ARXIV.2603.11697</a>.","chicago":"Wembe Moafo, Boris Edgar, Usman Ali, Torsten Meier, and Sina Ober-Blöbaum. “Cayley Commutator-Free Methods for Krotov-Type Algorithms in Quantum Optimal Control,” 2026. <a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">https://doi.org/10.48550/ARXIV.2603.11697</a>.","short":"B.E. Wembe Moafo, U. Ali, T. Meier, S. Ober-Blöbaum, in: 2026.","mla":"Wembe Moafo, Boris Edgar, et al. <i>Cayley Commutator-Free Methods for Krotov-Type Algorithms in Quantum Optimal Control</i>. 2026, doi:<a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">10.48550/ARXIV.2603.11697</a>.","ama":"Wembe Moafo BE, Ali U, Meier T, Ober-Blöbaum S. Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control. In: ; 2026. doi:<a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">10.48550/ARXIV.2603.11697</a>","bibtex":"@inproceedings{Wembe Moafo_Ali_Meier_Ober-Blöbaum_2026, title={Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control}, DOI={<a href=\"https://doi.org/10.48550/ARXIV.2603.11697\">10.48550/ARXIV.2603.11697</a>}, author={Wembe Moafo, Boris Edgar and Ali, Usman and Meier, Torsten and Ober-Blöbaum, Sina}, year={2026} }"},"abstract":[{"text":"This paper presents a class of structure-preserving numerical methods for quantum optimal control problems, based on commutator-free Cayley integrators. Starting from the Krotov framework, we reformulate the forward and backward propagation steps using Cayley-type schemes that preserve unitarity and symmetry at the discrete level. This approach eliminates the need for matrix exponentials and commutators, leading to significant computational savings while maintaining higher-order accuracy. We first recall the standard linear setting and then extend the formulation to nonlinear Schrödinger and Gross-Pitaevskii equations using a Cayley-polynomial interpolation strategy. Numerical experiments on state-transfer problems illustrate that the CF-Cayley method achieves the same accuracy as high-order exponential or Cayley-Magnus schemes at substantially lower cost, especially for longtime or highly oscillatory dynamics. In the nonlinear regime, the structure-preserving properties of the method ensure stability and norm conservation, making it a robust tool for large-scale quantum control simulations. The proposed framework thus bridges geometric integration and optimal control, offering an efficient and reliable alternative to existing exponential-based propagators.","lang":"eng"}],"language":[{"iso":"eng"}],"_id":"65746","doi":"10.48550/ARXIV.2603.11697","user_id":"95394","status":"public","year":"2026","title":"Cayley Commutator-free Methods for Krotov-Type Algorithms in Quantum Optimal Control","conference":{"end_date":"2026-07-10","location":"Reykjavík, Iceland","start_date":"2026-07-07","name":"European Control Conference"},"author":[{"full_name":"Wembe Moafo, Boris Edgar","orcid":"0000-0002-6085-8071","first_name":"Boris Edgar","last_name":"Wembe Moafo","id":"95394"},{"first_name":"Usman","last_name":"Ali","full_name":"Ali, Usman"},{"id":"344","full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","first_name":"Torsten","last_name":"Meier"},{"id":"16494","last_name":"Ober-Blöbaum","first_name":"Sina","full_name":"Ober-Blöbaum, Sina"}],"date_updated":"2026-06-01T09:40:38Z"},{"publication_status":"published","date_updated":"2026-06-01T08:43:47Z","author":[{"id":"21765","full_name":"Meier, Heiko","last_name":"Meier","first_name":"Heiko"},{"full_name":"Peper, Robert","last_name":"Peper","first_name":"Robert"},{"full_name":"Kukuk, Marc","first_name":"Marc","last_name":"Kukuk","id":"290"},{"id":"31513","last_name":"Riedl","first_name":"Lars","full_name":"Riedl, Lars"}],"publication_identifier":{"unknown":["9783880207301"]},"year":"2026","title":"Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung","status":"public","volume":"Band 305","editor":[{"full_name":"Meier, Heiko","first_name":"Heiko","last_name":"Meier"},{"first_name":"Marc","last_name":"Kukuk","full_name":"Kukuk, Marc"},{"last_name":"Sennefelder","first_name":"Lisa","full_name":"Sennefelder, Lisa"}],"user_id":"290","_id":"65702","series_title":"Schriften der Deutschen Vereinigung für Sportwissenschaft","publisher":"Feldhaus","language":[{"iso":"ger"}],"page":"107-121","citation":{"mla":"Meier, Heiko, et al. “Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung.” <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, edited by Heiko Meier et al., vol. Band 305, Feldhaus, 2026, pp. 107–21.","bibtex":"@inbook{Meier_Peper_Kukuk_Riedl_2026, series={Schriften der Deutschen Vereinigung für Sportwissenschaft}, title={Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung}, volume={Band 305}, booktitle={Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn}, publisher={Feldhaus}, author={Meier, Heiko and Peper, Robert and Kukuk, Marc and Riedl, Lars}, editor={Meier, Heiko and Kukuk, Marc and Sennefelder, Lisa}, year={2026}, pages={107–121}, collection={Schriften der Deutschen Vereinigung für Sportwissenschaft} }","ama":"Meier H, Peper R, Kukuk M, Riedl L. Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung. In: Meier H, Kukuk M, Sennefelder L, eds. <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>. Vol Band 305. Schriften der Deutschen Vereinigung für Sportwissenschaft. Feldhaus; 2026:107-121.","ieee":"H. Meier, R. Peper, M. Kukuk, and L. Riedl, “Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung,” in <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, vol. Band 305, H. Meier, M. Kukuk, and L. Sennefelder, Eds. Feldhaus, 2026, pp. 107–121.","apa":"Meier, H., Peper, R., Kukuk, M., &#38; Riedl, L. (2026). Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung. In H. Meier, M. Kukuk, &#38; L. Sennefelder (Eds.), <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn: Vol. Band 305</i> (pp. 107–121). Feldhaus.","chicago":"Meier, Heiko, Robert Peper, Marc Kukuk, and Lars Riedl. “Netzwerkanalysen als Bestandteil der Partizipativen Sportentwicklungsplanung.” In <i>Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn</i>, edited by Heiko Meier, Marc Kukuk, and Lisa Sennefelder, Band 305:107–21. Schriften der Deutschen Vereinigung für Sportwissenschaft. Feldhaus, 2026.","short":"H. Meier, R. Peper, M. Kukuk, L. Riedl, in: H. Meier, M. Kukuk, L. Sennefelder (Eds.), Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg &#38; Paderborn, Feldhaus, 2026, pp. 107–121."},"publication":"Planen. Beteiligen. Bauen. Bewegen. 16. Jahrestagung der dvs-Kommission „Sport und Raum“ vom 19.–20.09.2024 in Bad Driburg & Paderborn","department":[{"_id":"175"}],"type":"book_chapter","date_created":"2026-05-27T14:32:38Z"},{"date_created":"2026-06-01T09:31:15Z","department":[{"_id":"94"}],"type":"preprint","citation":{"mla":"Maslovskaya, Sofya, et al. <i>Non Static Exponential Turnpike Property for Optimal Control Problems with Symmetries and Boundary Conditions</i>.","bibtex":"@article{Maslovskaya_Ober-Blöbaum_Wembe Moafo, title={Non static exponential turnpike property for optimal control problems with symmetries and boundary conditions}, author={Maslovskaya, Sofya and Ober-Blöbaum, Sina and Wembe Moafo, Boris Edgar} }","ama":"Maslovskaya S, Ober-Blöbaum S, Wembe Moafo BE. Non static exponential turnpike property for optimal control problems with symmetries and boundary conditions.","ieee":"S. Maslovskaya, S. Ober-Blöbaum, and B. E. Wembe Moafo, “Non static exponential turnpike property for optimal control problems with symmetries and boundary conditions.” .","apa":"Maslovskaya, S., Ober-Blöbaum, S., &#38; Wembe Moafo, B. E. (n.d.). <i>Non static exponential turnpike property for optimal control problems with symmetries and boundary conditions</i>.","short":"S. Maslovskaya, S. Ober-Blöbaum, B.E. Wembe Moafo, (n.d.).","chicago":"Maslovskaya, Sofya, Sina Ober-Blöbaum, and Boris Edgar Wembe Moafo. “Non Static Exponential Turnpike Property for Optimal Control Problems with Symmetries and Boundary Conditions,” n.d."},"abstract":[{"text":"Optimal control problems with symmetries often admit a non stationary turnpike property called trim turnpike, which characterizes the convergence of optimal solutions to certain symmetry induced trajectories called trim primitives. In this paper we establish an exponential trim turnpike property for a class of optimal control problems with structural properties related to Abelian Lie group symmetries. The key ingredient of our approach is the introduction of an appropriate reduced optimal control problem. We show that extremals of the original problem can be characterized through a reduced Hamiltonian boundary value problem that coincides with the optimality system of the reduced problem. Under a hyperbolicity assumption on the equilibrium of the corresponding reduced Hamiltonian system we prove that optimal trajectories remain exponentially close, up to boundary layers near the endpoints, to a trim primitive defined by the static reduced problem. The theoretical results are illustrated on three representative examples: linear and nonlinear problems with quadratic cost and the Kepler orbital transfer problem.","lang":"eng"}],"language":[{"iso":"eng"}],"_id":"65744","user_id":"95394","author":[{"id":"87909","full_name":"Maslovskaya, Sofya","last_name":"Maslovskaya","first_name":"Sofya"},{"id":"16494","full_name":"Ober-Blöbaum, Sina","last_name":"Ober-Blöbaum","first_name":"Sina"},{"id":"95394","full_name":"Wembe Moafo, Boris Edgar","last_name":"Wembe Moafo","orcid":"0000-0002-6085-8071","first_name":"Boris Edgar"}],"year":"2026","title":"Non static exponential turnpike property for optimal control problems with symmetries and boundary conditions","status":"public","date_updated":"2026-06-01T09:35:13Z","publication_status":"submitted"},{"date_updated":"2026-06-01T09:43:52Z","publication_status":"published","article_type":"original","status":"public","title":"Numerical approaches to entangling dynamics from variational principles","year":"2026","publication_identifier":{"issn":["1751-8113","1751-8121"]},"author":[{"full_name":"Offen, Christian","first_name":"Christian","last_name":"Offen"},{"first_name":"Boris","last_name":"Wembe","full_name":"Wembe, Boris"},{"last_name":"Ares","first_name":"Laura","full_name":"Ares, Laura"},{"full_name":"Sperling, Jan","first_name":"Jan","last_name":"Sperling"},{"full_name":"Ober-Blöbaum, Sina","last_name":"Ober-Blöbaum","first_name":"Sina"}],"doi":"10.1088/1751-8121/ae6d51","user_id":"95394","_id":"65747","publisher":"IOP Publishing","language":[{"iso":"eng"}],"abstract":[{"text":"In this work, we address the numerical identification of entanglement in dynamical scenarios. To this end, we consider different programs based on the restriction of the evolution to the set of separable (i.e., non-entangled) states, together with the discretization of the space of variables for numerical computations. As a first approach, we apply linear splitting methods to the restricted, continuous equations of motion derived from variational principles. We utilize an exchange interaction Hamiltonian to confirm that the numerical and analytical solutions coincide in the limit of small time steps. The application to different Hamiltonians shows the wide applicability of the method to detect dynamical entanglement. To avoid the derivation of analytical solutions for complex dynamics, we consider variational, numerical integration schemes, introducing a variational discretization for Lagrangians linear in velocities. Here, we examine and compare two approaches: one in which the system is discretized before the restriction is applied, and another in which the restriction precedes the discretization. We find that the \"first-discretize-then-restrict\" method becomes numerically unstable, already for the example of an exchange-interaction Hamiltonian, which can be an important consideration for the numerical analysis of constrained quantum dynamics. Thereby, broadly applicable numerical tools, including their limitations, for studying entanglement over time are established for assessing the entangling power of processes that are used in quantum information theory.","lang":"eng"}],"publication":"Journal of Physics A: Mathematical and Theoretical","citation":{"short":"C. Offen, B. Wembe, L. Ares, J. Sperling, S. Ober-Blöbaum, Journal of Physics A: Mathematical and Theoretical (2026).","chicago":"Offen, Christian, Boris Wembe, Laura Ares, Jan Sperling, and Sina Ober-Blöbaum. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>.","ieee":"C. Offen, B. Wembe, L. Ares, J. Sperling, and S. Ober-Blöbaum, “Numerical approaches to entangling dynamics from variational principles,” <i>Journal of Physics A: Mathematical and Theoretical</i>, 2026, doi: <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>.","apa":"Offen, C., Wembe, B., Ares, L., Sperling, J., &#38; Ober-Blöbaum, S. (2026). Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. <a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">https://doi.org/10.1088/1751-8121/ae6d51</a>","bibtex":"@article{Offen_Wembe_Ares_Sperling_Ober-Blöbaum_2026, title={Numerical approaches to entangling dynamics from variational principles}, DOI={<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing}, author={Offen, Christian and Wembe, Boris and Ares, Laura and Sperling, Jan and Ober-Blöbaum, Sina}, year={2026} }","ama":"Offen C, Wembe B, Ares L, Sperling J, Ober-Blöbaum S. Numerical approaches to entangling dynamics from variational principles. <i>Journal of Physics A: Mathematical and Theoretical</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>","mla":"Offen, Christian, et al. “Numerical Approaches to Entangling Dynamics from Variational Principles.” <i>Journal of Physics A: Mathematical and Theoretical</i>, IOP Publishing, 2026, doi:<a href=\"https://doi.org/10.1088/1751-8121/ae6d51\">10.1088/1751-8121/ae6d51</a>."},"type":"journal_article","department":[{"_id":"94"}],"date_created":"2026-06-01T09:41:19Z"},{"publication":"beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur","date_created":"2026-06-01T08:42:47Z","department":[{"_id":"607"},{"_id":"817"}],"type":"book_chapter","publication_identifier":{"issn":["2569-880X","2569-8818"],"isbn":["9783658497958","9783658497965"]},"author":[{"full_name":"Brinkmann, FRank Thomas","last_name":"Brinkmann","first_name":"FRank Thomas"},{"full_name":"Jacke, Christoph","last_name":"Jacke","first_name":"Christoph","id":"20747"}],"title":"Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche","year":"2026","date_updated":"2026-06-01T10:58:48Z","publication_status":"published","language":[{"iso":"ger"}],"doi":"10.1007/978-3-658-49796-5","citation":{"mla":"Brinkmann, FRank Thomas, and Christoph Jacke. “Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche.” <i>beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur</i>, edited by Christian Polke et al., 1st ed., Springer Fachmedien Wiesbaden, 2026, pp. 45–77, doi:<a href=\"https://doi.org/10.1007/978-3-658-49796-5\">10.1007/978-3-658-49796-5</a>.","bibtex":"@inbook{Brinkmann_Jacke_2026, place={Wiesbaden}, edition={1}, title={Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche}, DOI={<a href=\"https://doi.org/10.1007/978-3-658-49796-5\">10.1007/978-3-658-49796-5</a>}, booktitle={beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur}, publisher={Springer Fachmedien Wiesbaden}, author={Brinkmann, FRank Thomas and Jacke, Christoph}, editor={Polke, Christian and Seipel, Maria-Louise and Stahl, Mirjam}, year={2026}, pages={45–77} }","ama":"Brinkmann FrT, Jacke C. Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche. In: Polke C, Seipel M-L, Stahl M, eds. <i>beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur</i>. 1st ed. Springer Fachmedien Wiesbaden; 2026:45-77. doi:<a href=\"https://doi.org/10.1007/978-3-658-49796-5\">10.1007/978-3-658-49796-5</a>","ieee":"Fr. T. Brinkmann and C. Jacke, “Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche,” in <i>beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur</i>, 1st ed., C. Polke, M.-L. Seipel, and M. Stahl, Eds. Wiesbaden: Springer Fachmedien Wiesbaden, 2026, pp. 45–77.","apa":"Brinkmann, Fr. T., &#38; Jacke, C. (2026). Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche. In C. Polke, M.-L. Seipel, &#38; M. Stahl (Eds.), <i>beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur</i> (1st ed., pp. 45–77). Springer Fachmedien Wiesbaden. <a href=\"https://doi.org/10.1007/978-3-658-49796-5\">https://doi.org/10.1007/978-3-658-49796-5</a>","short":"Fr.T. Brinkmann, C. Jacke, in: C. Polke, M.-L. Seipel, M. Stahl (Eds.), beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur, 1st ed., Springer Fachmedien Wiesbaden, Wiesbaden, 2026, pp. 45–77.","chicago":"Brinkmann, FRank Thomas, and Christoph Jacke. “Don’t touch me there/Touch my body. Zur Vielstimmigkeit und Unstimmigkeit besungener (Be-)Rührungswünsche.” In <i>beRÜHRUNGen. Leibliches, seelisches und existentielles Geschehen in der Popkultur</i>, edited by Christian Polke, Maria-Louise Seipel, and Mirjam Stahl, 1st ed., 45–77. Wiesbaden: Springer Fachmedien Wiesbaden, 2026. <a href=\"https://doi.org/10.1007/978-3-658-49796-5\">https://doi.org/10.1007/978-3-658-49796-5</a>."},"place":"Wiesbaden","status":"public","publisher":"Springer Fachmedien Wiesbaden","_id":"65740","edition":"1","page":"45-77","editor":[{"first_name":"Christian","last_name":"Polke","full_name":"Polke, Christian"},{"full_name":"Seipel, Maria-Louise","last_name":"Seipel","first_name":"Maria-Louise"},{"first_name":"Mirjam","last_name":"Stahl","full_name":"Stahl, Mirjam"}],"user_id":"20747"},{"department":[{"_id":"276"}],"type":"journal_article","date_created":"2026-03-26T10:59:29Z","related_material":{"link":[{"url":"https://link.springer.com/article/10.1007/s10257-026-00723-y?utm_source=rct_congratemailt&utm_medium=email&utm_campaign=oa_20260531&utm_content=10.1007/s10257-026-00723-y","relation":"confirmation"}]},"citation":{"short":"W. Jabr, D. Gutt, J. Neumann, D. Kundisch, Information Systems and E-Business Management (2026).","chicago":"Jabr, Wael, Dominik Gutt, Jürgen Neumann, and Dennis Kundisch. “Updating at the Expense of Demand? The Case of Platform Apps.” <i>Information Systems and E-Business Management</i>, 2026. <a href=\"https://doi.org/10.1007/s1025-026-00723-y\">https://doi.org/10.1007/s1025-026-00723-y</a>.","ieee":"W. Jabr, D. Gutt, J. Neumann, and D. Kundisch, “Updating at the Expense of Demand? The Case of Platform Apps,” <i>Information Systems and e-Business Management</i>, 2026, doi: <a href=\"https://doi.org/10.1007/s1025-026-00723-y\">10.1007/s1025-026-00723-y</a>.","apa":"Jabr, W., Gutt, D., Neumann, J., &#38; Kundisch, D. (2026). Updating at the Expense of Demand? The Case of Platform Apps. <i>Information Systems and E-Business Management</i>. <a href=\"https://doi.org/10.1007/s1025-026-00723-y\">https://doi.org/10.1007/s1025-026-00723-y</a>","bibtex":"@article{Jabr_Gutt_Neumann_Kundisch_2026, title={Updating at the Expense of Demand? The Case of Platform Apps}, DOI={<a href=\"https://doi.org/10.1007/s1025-026-00723-y\">10.1007/s1025-026-00723-y</a>}, journal={Information Systems and e-Business Management}, publisher={Springer}, author={Jabr, Wael and Gutt, Dominik and Neumann, Jürgen and Kundisch, Dennis}, year={2026} }","ama":"Jabr W, Gutt D, Neumann J, Kundisch D. Updating at the Expense of Demand? The Case of Platform Apps. <i>Information Systems and e-Business Management</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1007/s1025-026-00723-y\">10.1007/s1025-026-00723-y</a>","mla":"Jabr, Wael, et al. “Updating at the Expense of Demand? The Case of Platform Apps.” <i>Information Systems and E-Business Management</i>, Springer, 2026, doi:<a href=\"https://doi.org/10.1007/s1025-026-00723-y\">10.1007/s1025-026-00723-y</a>."},"publication":"Information Systems and e-Business Management","doi":"10.1007/s1025-026-00723-y","user_id":"16205","publisher":"Springer","_id":"65139","language":[{"iso":"eng"}],"date_updated":"2026-06-01T13:24:22Z","publication_status":"published","author":[{"full_name":"Jabr, Wael","first_name":"Wael","last_name":"Jabr"},{"last_name":"Gutt","first_name":"Dominik","full_name":"Gutt, Dominik"},{"first_name":"Jürgen","last_name":"Neumann","full_name":"Neumann, Jürgen"},{"last_name":"Kundisch","first_name":"Dennis","full_name":"Kundisch, Dennis"}],"title":"Updating at the Expense of Demand? The Case of Platform Apps","year":"2026","status":"public"},{"date_updated":"2026-06-01T13:21:39Z","publication_status":"published","author":[{"full_name":"Ksouri-Gerwien, Christoph","first_name":"Christoph","last_name":"Ksouri-Gerwien"},{"first_name":"Christian","last_name":"Vorbohle","full_name":"Vorbohle, Christian","id":"29951"}],"title":"Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics","status":"public","year":"2026","user_id":"16205","language":[{"iso":"eng"}],"_id":"65451","citation":{"bibtex":"@article{Ksouri-Gerwien_Vorbohle_2026, title={Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics}, journal={Information Systems and e-Business Management}, author={Ksouri-Gerwien, Christoph and Vorbohle, Christian}, year={2026} }","ama":"Ksouri-Gerwien C, Vorbohle C. Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics. <i>Information Systems and e-Business Management</i>. Published online 2026.","mla":"Ksouri-Gerwien, Christoph, and Christian Vorbohle. “Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-Based Modeling Framework for Using System Dynamics.” <i>Information Systems and E-Business Management</i>, 2026.","short":"C. Ksouri-Gerwien, C. Vorbohle, Information Systems and E-Business Management (2026).","chicago":"Ksouri-Gerwien, Christoph, and Christian Vorbohle. “Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-Based Modeling Framework for Using System Dynamics.” <i>Information Systems and E-Business Management</i>, 2026.","ieee":"C. Ksouri-Gerwien and C. Vorbohle, “Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics,” <i>Information Systems and e-Business Management</i>, 2026.","apa":"Ksouri-Gerwien, C., &#38; Vorbohle, C. (2026). Business Model Prototyping and Evaluation from an Ecosystem Perspective: An Actor-based Modeling Framework for Using System Dynamics. <i>Information Systems and E-Business Management</i>."},"publication":"Information Systems and e-Business Management","department":[{"_id":"276"}],"type":"journal_article","date_created":"2026-04-15T13:13:12Z"},{"citation":{"chicago":"Bahmanian, Meysam, J. Christoph Scheytt, Nora Meyne, and Thomas Kleine-Ostmann. “Phase Noise Metrology.” In <i>Springer Series in Optical Sciences</i>. Cham: Springer Nature Switzerland, 2026. <a href=\"https://doi.org/10.1007/978-3-032-01986-8_4\">https://doi.org/10.1007/978-3-032-01986-8_4</a>.","short":"M. Bahmanian, J.C. Scheytt, N. Meyne, T. Kleine-Ostmann, in: Springer Series in Optical Sciences, Springer Nature Switzerland, Cham, 2026.","apa":"Bahmanian, M., Scheytt, J. C., Meyne, N., &#38; Kleine-Ostmann, T. (2026). Phase Noise Metrology. In <i>Springer Series in Optical Sciences</i>. Springer Nature Switzerland. <a href=\"https://doi.org/10.1007/978-3-032-01986-8_4\">https://doi.org/10.1007/978-3-032-01986-8_4</a>","ieee":"M. Bahmanian, J. C. Scheytt, N. Meyne, and T. Kleine-Ostmann, “Phase Noise Metrology,” in <i>Springer Series in Optical Sciences</i>, Cham: Springer Nature Switzerland, 2026.","ama":"Bahmanian M, Scheytt JC, Meyne N, Kleine-Ostmann T. Phase Noise Metrology. In: <i>Springer Series in Optical Sciences</i>. Springer Nature Switzerland; 2026. doi:<a href=\"https://doi.org/10.1007/978-3-032-01986-8_4\">10.1007/978-3-032-01986-8_4</a>","bibtex":"@inbook{Bahmanian_Scheytt_Meyne_Kleine-Ostmann_2026, place={Cham}, title={Phase Noise Metrology}, DOI={<a href=\"https://doi.org/10.1007/978-3-032-01986-8_4\">10.1007/978-3-032-01986-8_4</a>}, booktitle={Springer Series in Optical Sciences}, publisher={Springer Nature Switzerland}, author={Bahmanian, Meysam and Scheytt, J. Christoph and Meyne, Nora and Kleine-Ostmann, Thomas}, year={2026} }","mla":"Bahmanian, Meysam, et al. “Phase Noise Metrology.” <i>Springer Series in Optical Sciences</i>, Springer Nature Switzerland, 2026, doi:<a href=\"https://doi.org/10.1007/978-3-032-01986-8_4\">10.1007/978-3-032-01986-8_4</a>."},"publication":"Springer Series in Optical Sciences","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>Phase noise is one of the most important properties of oscillators that limit the capacity of high-frequency communication systems. In heterodyne conversion schemes, the phase noise of the local oscillator will be multiplied and up-converted to the transmission channel. Therefore, accurate characterization of the oscillators is highly important for the design of THz communication systems. Especially when it comes to the characterization of high-quality oscillators with extremely low phase noise, traceable measurement methods are not available.</jats:p>\r\n                  <jats:p>In this chapter, the mathematical model and definition of the amplitude noise (AM noise) and phase noise (PM noise) are given. Different phase noise definition standards such as single sideband (SSB) and double sideband will also be provided. Phase noise measurement techniques such as frequency discrimination and phase-locked loop (PLL) technique will be discussed. The standard two-channel cross correlation for statistical analysis of phase noise at levels below the detection limit of the phase noise receiver will be explained with mathematical formalism.</jats:p>"}],"date_created":"2026-06-01T12:17:34Z","place":"Cham","department":[{"_id":"58"},{"_id":"623"}],"type":"book_chapter","publication_identifier":{"issn":["0342-4111","1556-1534"],"isbn":["9783032019851","9783032019868"]},"author":[{"id":"69233","first_name":"Meysam","last_name":"Bahmanian","full_name":"Bahmanian, Meysam"},{"id":"37144","full_name":"Scheytt, J. Christoph","last_name":"Scheytt","orcid":"0000-0002-5950-6618 ","first_name":"J. Christoph"},{"first_name":"Nora","last_name":"Meyne","full_name":"Meyne, Nora"},{"last_name":"Kleine-Ostmann","first_name":"Thomas","full_name":"Kleine-Ostmann, Thomas"}],"conference":{"end_date":"2026-05-01","start_date":"2026-05-01"},"title":"Phase Noise Metrology","year":"2026","status":"public","publication_status":"published","date_updated":"2026-06-02T09:34:24Z","language":[{"iso":"eng"}],"_id":"65749","publisher":"Springer Nature Switzerland","user_id":"13256","doi":"10.1007/978-3-032-01986-8_4"},{"publication_identifier":{"issn":["0009-286X","1522-2640"]},"author":[{"full_name":"Wloch, Johannes","last_name":"Wloch","first_name":"Johannes"},{"full_name":"Grünewald, Marcus","first_name":"Marcus","last_name":"Grünewald"},{"id":"101499","orcid":"0000-0002-3053-0534","last_name":"Riese","first_name":"Julia","full_name":"Riese, Julia"}],"title":"Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process","year":"2026","status":"public","publication_status":"published","date_updated":"2026-06-02T10:03:57Z","publisher":"Wiley","_id":"65754","language":[{"iso":"eng"}],"article_number":"e70131","user_id":"101499","doi":"10.1002/cite.70131","citation":{"bibtex":"@article{Wloch_Grünewald_Riese_2026, title={Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process}, DOI={<a href=\"https://doi.org/10.1002/cite.70131\">10.1002/cite.70131</a>}, number={e70131}, journal={Chemie Ingenieur Technik}, publisher={Wiley}, author={Wloch, Johannes and Grünewald, Marcus and Riese, Julia}, year={2026} }","ama":"Wloch J, Grünewald M, Riese J. Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process. <i>Chemie Ingenieur Technik</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1002/cite.70131\">10.1002/cite.70131</a>","mla":"Wloch, Johannes, et al. “Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process.” <i>Chemie Ingenieur Technik</i>, e70131, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/cite.70131\">10.1002/cite.70131</a>.","short":"J. Wloch, M. Grünewald, J. Riese, Chemie Ingenieur Technik (2026).","chicago":"Wloch, Johannes, Marcus Grünewald, and Julia Riese. “Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process.” <i>Chemie Ingenieur Technik</i>, 2026. <a href=\"https://doi.org/10.1002/cite.70131\">https://doi.org/10.1002/cite.70131</a>.","ieee":"J. Wloch, M. Grünewald, and J. Riese, “Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process,” <i>Chemie Ingenieur Technik</i>, Art. no. e70131, 2026, doi: <a href=\"https://doi.org/10.1002/cite.70131\">10.1002/cite.70131</a>.","apa":"Wloch, J., Grünewald, M., &#38; Riese, J. (2026). Matching Heat Pump Configurations and Process Parameters for Cost‐Minimal Heat‐Integrated CO<sub>2</sub>-Capturing Process. <i>Chemie Ingenieur Technik</i>, Article e70131. <a href=\"https://doi.org/10.1002/cite.70131\">https://doi.org/10.1002/cite.70131</a>"},"publication":"Chemie Ingenieur Technik","quality_controlled":"1","abstract":[{"text":"<jats:title>ABSTRACT</jats:title>\r\n                  <jats:p>\r\n                    The integration of heat pumps offers a promising route for electrifying chemical processes and reducing CO\r\n                    <jats:sub>2</jats:sub>\r\n                    emissions. Their feasibility strongly depends on the temperature levels and the quantities of available heat sources and sinks, which can be influenced by adjusting process operating parameters to enhance integration potential. The number and quality of these sources and sinks also determine suitable heat pump configurations and therefore the technical and economic viability of implementation. In addition, refrigerant selection is a critical factor, as it is restricted by regulations such as the F‐Gas Regulation. This study investigates how different operating parameters affect the integration potential of various heat pump configurations in a CO\r\n                    <jats:sub>2</jats:sub>\r\n                    absorption process using MEA as solvent. Furthermore, economic evaluations are carried out considering different electricity price scenarios and allowable refrigerants.\r\n                  </jats:p>","lang":"eng"}],"date_created":"2026-06-02T09:59:46Z","department":[{"_id":"831"}],"type":"journal_article"},{"publication_status":"published","date_updated":"2026-06-02T09:34:54Z","publication_identifier":{"isbn":["9783032019851","9783032019868"],"issn":["0342-4111","1556-1534"]},"author":[{"full_name":"Bahmanian, Meysam","first_name":"Meysam","last_name":"Bahmanian","id":"69233"},{"id":"37144","full_name":"Scheytt, J. Christoph","orcid":"0000-0002-5950-6618 ","first_name":"J. Christoph","last_name":"Scheytt"}],"conference":{"end_date":"2026-05-01","start_date":"2026-05-01"},"status":"public","year":"2026","title":"Frequency Synthesis Based on MLLs","user_id":"13256","doi":"10.1007/978-3-032-01986-8_28","_id":"65748","language":[{"iso":"eng"}],"publisher":"Springer Nature Switzerland","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n                  <jats:p>In this chapter, the precision of optical clocks based on mode-locked laser (MLL) is compared with more conventional types of clock sources. It is shown that the phase noise of the optical pulse train from the MLL can be better than other types of clock sources by orders of magnitude. Then, an abstract representation of frequency synthesizer is demonstrated. Different techniques for RF generation using MLL are shown, and their pros and cons are discussed. Finally, a comparison of all these techniques is made with respect to their phase noise and capability to generate RF signal with different frequencies for different applications.</jats:p>"}],"citation":{"mla":"Bahmanian, Meysam, and J. Christoph Scheytt. “Frequency Synthesis Based on MLLs.” <i>Springer Series in Optical Sciences</i>, Springer Nature Switzerland, 2026, doi:<a href=\"https://doi.org/10.1007/978-3-032-01986-8_28\">10.1007/978-3-032-01986-8_28</a>.","bibtex":"@inbook{Bahmanian_Scheytt_2026, place={Cham}, title={Frequency Synthesis Based on MLLs}, DOI={<a href=\"https://doi.org/10.1007/978-3-032-01986-8_28\">10.1007/978-3-032-01986-8_28</a>}, booktitle={Springer Series in Optical Sciences}, publisher={Springer Nature Switzerland}, author={Bahmanian, Meysam and Scheytt, J. Christoph}, year={2026} }","ama":"Bahmanian M, Scheytt JC. Frequency Synthesis Based on MLLs. In: <i>Springer Series in Optical Sciences</i>. Springer Nature Switzerland; 2026. doi:<a href=\"https://doi.org/10.1007/978-3-032-01986-8_28\">10.1007/978-3-032-01986-8_28</a>","ieee":"M. Bahmanian and J. C. Scheytt, “Frequency Synthesis Based on MLLs,” in <i>Springer Series in Optical Sciences</i>, Cham: Springer Nature Switzerland, 2026.","apa":"Bahmanian, M., &#38; Scheytt, J. C. (2026). Frequency Synthesis Based on MLLs. In <i>Springer Series in Optical Sciences</i>. Springer Nature Switzerland. <a href=\"https://doi.org/10.1007/978-3-032-01986-8_28\">https://doi.org/10.1007/978-3-032-01986-8_28</a>","short":"M. Bahmanian, J.C. Scheytt, in: Springer Series in Optical Sciences, Springer Nature Switzerland, Cham, 2026.","chicago":"Bahmanian, Meysam, and J. Christoph Scheytt. “Frequency Synthesis Based on MLLs.” In <i>Springer Series in Optical Sciences</i>. Cham: Springer Nature Switzerland, 2026. <a href=\"https://doi.org/10.1007/978-3-032-01986-8_28\">https://doi.org/10.1007/978-3-032-01986-8_28</a>."},"publication":"Springer Series in Optical Sciences","department":[{"_id":"58"},{"_id":"623"}],"type":"book_chapter","date_created":"2026-06-01T12:16:46Z","place":"Cham"},{"author":[{"full_name":"Twardzik, Jan Luca","first_name":"Jan Luca","last_name":"Twardzik"},{"full_name":"Humpert, Lynn","last_name":"Humpert","first_name":"Lynn"},{"full_name":"Cichon, Gerrit","last_name":"Cichon","first_name":"Gerrit"},{"first_name":"Roman","last_name":"Dumitrescu","full_name":"Dumitrescu, Roman","id":"16190"}],"publication_identifier":{"isbn":["9783032211569","9783032211576"],"issn":["2195-4356","2195-4364"]},"status":"public","year":"2026","title":"Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry","publication_status":"published","date_updated":"2026-06-02T11:50:46Z","language":[{"iso":"eng"}],"_id":"65755","publisher":"Springer Nature Switzerland","user_id":"15782","doi":"10.1007/978-3-032-21157-6_39","citation":{"short":"J.L. Twardzik, L. Humpert, G. Cichon, R. Dumitrescu, in: Lecture Notes in Mechanical Engineering, Springer Nature Switzerland, Cham, 2026.","chicago":"Twardzik, Jan Luca, Lynn Humpert, Gerrit Cichon, and Roman Dumitrescu. “Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry.” In <i>Lecture Notes in Mechanical Engineering</i>. Cham: Springer Nature Switzerland, 2026. <a href=\"https://doi.org/10.1007/978-3-032-21157-6_39\">https://doi.org/10.1007/978-3-032-21157-6_39</a>.","apa":"Twardzik, J. L., Humpert, L., Cichon, G., &#38; Dumitrescu, R. (2026). Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry. In <i>Lecture Notes in Mechanical Engineering</i>. Springer Nature Switzerland. <a href=\"https://doi.org/10.1007/978-3-032-21157-6_39\">https://doi.org/10.1007/978-3-032-21157-6_39</a>","ieee":"J. L. Twardzik, L. Humpert, G. Cichon, and R. Dumitrescu, “Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry,” in <i>Lecture Notes in Mechanical Engineering</i>, Cham: Springer Nature Switzerland, 2026.","ama":"Twardzik JL, Humpert L, Cichon G, Dumitrescu R. Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry. In: <i>Lecture Notes in Mechanical Engineering</i>. Springer Nature Switzerland; 2026. doi:<a href=\"https://doi.org/10.1007/978-3-032-21157-6_39\">10.1007/978-3-032-21157-6_39</a>","bibtex":"@inbook{Twardzik_Humpert_Cichon_Dumitrescu_2026, place={Cham}, title={Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry}, DOI={<a href=\"https://doi.org/10.1007/978-3-032-21157-6_39\">10.1007/978-3-032-21157-6_39</a>}, booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature Switzerland}, author={Twardzik, Jan Luca and Humpert, Lynn and Cichon, Gerrit and Dumitrescu, Roman}, year={2026} }","mla":"Twardzik, Jan Luca, et al. “Knowledge Gaps in Circular Product Development: A Systematic Literature Review of the Manufacturing Industry.” <i>Lecture Notes in Mechanical Engineering</i>, Springer Nature Switzerland, 2026, doi:<a href=\"https://doi.org/10.1007/978-3-032-21157-6_39\">10.1007/978-3-032-21157-6_39</a>."},"publication":"Lecture Notes in Mechanical Engineering","date_created":"2026-06-02T11:46:11Z","place":"Cham","department":[{"_id":"563"}],"type":"book_chapter"},{"date_updated":"2026-06-02T10:34:52Z","publication_status":"published","publication_identifier":{"isbn":["978-3-7344-1775-7"],"issn":["1435-7658"]},"author":[{"id":"49623","full_name":"Meyer-Hamme, Johannes","first_name":"Johannes","last_name":"Meyer-Hamme"},{"last_name":"Hartung","first_name":"Olaf","orcid":"0009-0007-8673-250X","full_name":"Hartung, Olaf","id":"79451"}],"status":"public","year":"2026","title":"Historisches Lernen","editor":[{"last_name":"Barricelli","first_name":"Michele","full_name":"Barricelli, Michele"},{"full_name":"Lücke, Martin","last_name":"Lücke","first_name":"Martin"}],"user_id":"79451","_id":"63615","publisher":"Wochenschau Verlag","language":[{"iso":"ger"}],"edition":"2","quality_controlled":"1","citation":{"short":"J. Meyer-Hamme, O. Hartung, in: M. Barricelli, M. Lücke (Eds.), Handbuch Praxis des Geschichtsunterrichts, 2nd ed., Wochenschau Verlag, Frankfurt/Main, 2026.","chicago":"Meyer-Hamme, Johannes, and Olaf Hartung. “Historisches Lernen.” In <i>Handbuch Praxis des Geschichtsunterrichts</i>, edited by Michele Barricelli and Martin Lücke, 2nd ed. Frankfurt/Main: Wochenschau Verlag, 2026.","apa":"Meyer-Hamme, J., &#38; Hartung, O. (2026). Historisches Lernen. In M. Barricelli &#38; M. Lücke (Eds.), <i>Handbuch Praxis des Geschichtsunterrichts</i> (2nd ed.). Wochenschau Verlag.","ieee":"J. Meyer-Hamme and O. Hartung, “Historisches Lernen,” in <i>Handbuch Praxis des Geschichtsunterrichts</i>, 2nd ed., M. Barricelli and M. Lücke, Eds. Frankfurt/Main: Wochenschau Verlag, 2026.","ama":"Meyer-Hamme J, Hartung O. Historisches Lernen. In: Barricelli M, Lücke M, eds. <i>Handbuch Praxis des Geschichtsunterrichts</i>. 2nd ed. Wochenschau Verlag; 2026.","bibtex":"@inbook{Meyer-Hamme_Hartung_2026, place={Frankfurt/Main}, edition={2}, title={Historisches Lernen}, booktitle={Handbuch Praxis des Geschichtsunterrichts}, publisher={Wochenschau Verlag}, author={Meyer-Hamme, Johannes and Hartung, Olaf}, editor={Barricelli, Michele and Lücke, Martin}, year={2026} }","mla":"Meyer-Hamme, Johannes, and Olaf Hartung. “Historisches Lernen.” <i>Handbuch Praxis des Geschichtsunterrichts</i>, edited by Michele Barricelli and Martin Lücke, 2nd ed., Wochenschau Verlag, 2026."},"publication":"Handbuch Praxis des Geschichtsunterrichts","department":[{"_id":"6"},{"_id":"444"}],"type":"book_chapter","place":"Frankfurt/Main","date_created":"2026-01-15T08:35:25Z"},{"date_created":"2026-06-03T06:34:27Z","keyword":["Heat transition","Optimisation","Temperature flexibility","Decarbonisation","Multi energy"],"type":"journal_article","department":[{"_id":"644"},{"_id":"534"}],"publication":"Energy Conversion and Management","abstract":[{"text":"Electrifying the heating sector is essential for achieving global climate targets like the Paris Agreement’s 1.5 °C goal. In Germany, where 80  % of household energy goes to space heating and hot water, shifting to low-carbon solutions is crucial. Fossil-fuelled district heating networks can incorporate renewable energy via heat pumps, improving efficiency. Although heat pump design typically favours minimal temperature lifts, higher lifts can be economically viable with low electricity prices and abundant renewables. Adding thermal energy storage boosts operational flexibility. This study explores a flexible heat pump operation incorporating part load behaviour with a thermal energy storage in a German city’s district heating system to minimise costs and carbon dioxide emissions. Using a mixed-integer linear programming model, it examines the impact of temperature adjustments and storage on system efficiency. The results show that the integration of a heat pump in a district heating system reduces operating costs. Compared to a supply without a heat pump, with levelised cost of heating of 9.98 cent/kWhth and a fixed operating mode with costs between 9.96 cent/kWhth and 11.49 cent/kWhth, the flexible use results in lowest costs of 9.85 cent/kWhth, while also reducing overall CO2 emissions. Using a full factorial sensitivity analysis, the levelised cost of heating ranged between 9.15 cent/kWhth in the best case and 10.37 cent/kWhth in the worst case for the selected configuration.","lang":"eng"}],"article_number":"121714","main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S0196890426006837","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1016/j.enconman.2026.121714","title":"Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices","year":"2026","author":[{"full_name":"Rahlf, Henning Christoph","orcid":"0009-0006-8106-2132","first_name":"Henning Christoph","last_name":"Rahlf","id":"56955"},{"id":"89059","full_name":"Divkovic, Denis","last_name":"Divkovic","first_name":"Denis"},{"id":"90391","last_name":"Knorr","orcid":"0009-0005-4727-7511","first_name":"Lukas","full_name":"Knorr, Lukas"},{"full_name":"Schlosser, Florian","first_name":"Florian","last_name":"Schlosser","id":"88614"},{"first_name":"Henning","last_name":"Meschede","orcid":"0000-0002-1538-089X","full_name":"Meschede, Henning","id":"86954"}],"publication_identifier":{"issn":["0196-8904"]},"publication_status":"published","date_updated":"2026-06-03T06:44:31Z","article_type":"original","intvolume":"       364","oa":"1","citation":{"apa":"Rahlf, H. C., Divkovic, D., Knorr, L., Schlosser, F., &#38; Meschede, H. (2026). Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices. <i>Energy Conversion and Management</i>, <i>364</i>, Article 121714. <a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">https://doi.org/10.1016/j.enconman.2026.121714</a>","ieee":"H. C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, and H. Meschede, “Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices,” <i>Energy Conversion and Management</i>, vol. 364, Art. no. 121714, 2026, doi: <a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">10.1016/j.enconman.2026.121714</a>.","short":"H.C. Rahlf, D. Divkovic, L. Knorr, F. Schlosser, H. Meschede, Energy Conversion and Management 364 (2026).","chicago":"Rahlf, Henning Christoph, Denis Divkovic, Lukas Knorr, Florian Schlosser, and Henning Meschede. “Flexible Operation Strategies for Heat Pumps in District Heating Systems Using Dynamic Electricity Prices.” <i>Energy Conversion and Management</i> 364 (2026). <a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">https://doi.org/10.1016/j.enconman.2026.121714</a>.","mla":"Rahlf, Henning Christoph, et al. “Flexible Operation Strategies for Heat Pumps in District Heating Systems Using Dynamic Electricity Prices.” <i>Energy Conversion and Management</i>, vol. 364, 121714, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">10.1016/j.enconman.2026.121714</a>.","ama":"Rahlf HC, Divkovic D, Knorr L, Schlosser F, Meschede H. Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices. <i>Energy Conversion and Management</i>. 2026;364. doi:<a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">10.1016/j.enconman.2026.121714</a>","bibtex":"@article{Rahlf_Divkovic_Knorr_Schlosser_Meschede_2026, title={Flexible operation strategies for heat pumps in district heating systems using dynamic electricity prices}, volume={364}, DOI={<a href=\"https://doi.org/10.1016/j.enconman.2026.121714\">10.1016/j.enconman.2026.121714</a>}, number={121714}, journal={Energy Conversion and Management}, publisher={Elsevier BV}, author={Rahlf, Henning Christoph and Divkovic, Denis and Knorr, Lukas and Schlosser, Florian and Meschede, Henning}, year={2026} }"},"project":[{"_id":"1495","name":"FlexLabQuartier"}],"publisher":"Elsevier BV","_id":"65757","user_id":"56955","volume":364,"status":"public"},{"article_type":"original","publication_status":"published","date_updated":"2026-06-03T06:42:54Z","publication_identifier":{"issn":["2666-9552"]},"author":[{"full_name":"Rahlf, Henning Christoph","last_name":"Rahlf","orcid":"0009-0006-8106-2132","first_name":"Henning Christoph","id":"56955"},{"id":"90391","first_name":"Lukas","last_name":"Knorr","orcid":"0009-0005-4727-7511","full_name":"Knorr, Lukas"},{"last_name":"Althoff","first_name":"Simon","full_name":"Althoff, Simon"},{"id":"86954","orcid":"0000-0002-1538-089X","last_name":"Meschede","first_name":"Henning","full_name":"Meschede, Henning"}],"year":"2026","title":"Analysis of bidirectional EV charging infrastructures within industrial DC grids","doi":"10.1016/j.segy.2026.100227","language":[{"iso":"eng"}],"article_number":"100227","main_file_link":[{"open_access":"1","url":"https://www.sciencedirect.com/science/article/pii/S266695522600002X"}],"abstract":[{"text":"Industrial electrification is increasing to reduce fossil fuel dependence, alongside a growing share of volatile renewables.\r\nA secure and reliable energy supply is crucial for industry, leading to a shift from centralised to decentralised grid structures.\r\nDC microgrids becoming increasingly popular in industry, since they enable energy recuperation from braking, reduce components and cables, and integrate storage and local generation to manage supply interruptions or peak loads.\r\nEVs add further synergies by serving as mobile storage units, helping to store and redistribute locally generated renewable energy.\r\nThis paper analyses how EV integration in droop-controlled DC grids can contribute to a more stable, low-emission and peak-reduced load profile to the supply grid through load shifting and bridge interruptions.\r\nA droop-controlled DC grid model has been developed, incorporating an EV charging park based on probability functions.\r\nScalable scenarios allow for diverse condition analysis using an energy management system that utilises fuzzy logic and sequential MILP optimisation.\r\nIt has been shown that a 7% improvement of coefficient represented grid-serving behaviour is possible by load shifting.\r\nIt has also been demonstrated that an optimised EMS can reduce the demand-based CO2 emissions by 41kg for a representative day compared to a fuzzy logic EMS.\r\nAt the same time peak load is decreased yielding a more constant residual load.\r\nThese results highlight the potential of a controlled bidirectional charging infrastructure in DC grids and underscore the need to explicitly consider charging processes to ensure a residual load as constant as possible.","lang":"eng"}],"publication":"Smart Energy","department":[{"_id":"644"}],"keyword":["DC-grid","Droop control","Grid-serving behaviour","Grid stability","Bidirectional charging","Sequential decision","MILP optimisation"],"type":"journal_article","date_created":"2026-02-02T14:45:17Z","status":"public","user_id":"56955","_id":"63838","publisher":"Elsevier BV","quality_controlled":"1","citation":{"bibtex":"@article{Rahlf_Knorr_Althoff_Meschede_2026, title={Analysis of bidirectional EV charging infrastructures within industrial DC grids}, DOI={<a href=\"https://doi.org/10.1016/j.segy.2026.100227\">10.1016/j.segy.2026.100227</a>}, number={100227}, journal={Smart Energy}, publisher={Elsevier BV}, author={Rahlf, Henning Christoph and Knorr, Lukas and Althoff, Simon and Meschede, Henning}, year={2026} }","ama":"Rahlf HC, Knorr L, Althoff S, Meschede H. Analysis of bidirectional EV charging infrastructures within industrial DC grids. <i>Smart Energy</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1016/j.segy.2026.100227\">10.1016/j.segy.2026.100227</a>","mla":"Rahlf, Henning Christoph, et al. “Analysis of Bidirectional EV Charging Infrastructures within Industrial DC Grids.” <i>Smart Energy</i>, 100227, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.segy.2026.100227\">10.1016/j.segy.2026.100227</a>.","chicago":"Rahlf, Henning Christoph, Lukas Knorr, Simon Althoff, and Henning Meschede. “Analysis of Bidirectional EV Charging Infrastructures within Industrial DC Grids.” <i>Smart Energy</i>, 2026. <a href=\"https://doi.org/10.1016/j.segy.2026.100227\">https://doi.org/10.1016/j.segy.2026.100227</a>.","short":"H.C. Rahlf, L. Knorr, S. Althoff, H. Meschede, Smart Energy (2026).","ieee":"H. C. Rahlf, L. Knorr, S. Althoff, and H. Meschede, “Analysis of bidirectional EV charging infrastructures within industrial DC grids,” <i>Smart Energy</i>, Art. no. 100227, 2026, doi: <a href=\"https://doi.org/10.1016/j.segy.2026.100227\">10.1016/j.segy.2026.100227</a>.","apa":"Rahlf, H. C., Knorr, L., Althoff, S., &#38; Meschede, H. (2026). Analysis of bidirectional EV charging infrastructures within industrial DC grids. <i>Smart Energy</i>, Article 100227. <a href=\"https://doi.org/10.1016/j.segy.2026.100227\">https://doi.org/10.1016/j.segy.2026.100227</a>"},"oa":"1"},{"date_created":"2026-06-02T12:01:04Z","type":"conference","department":[{"_id":"195"}],"publication":"European Conference on Information Systems (ECIS) 2026 Proceedings","issue":"6","citation":{"apa":"Hellweg, T. D., Sandfort, L. D., Reineke, M. F., Bartelheimer, C., &#38; Beverungen, D. (2026). Temporary Fix Or Process Innovation? 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