[{"type":"journal_article","department":[{"_id":"623"},{"_id":"15"},{"_id":"429"},{"_id":"642"}],"date_created":"2025-12-04T12:20:57Z","publication":"Nature Communications","issue":"1","doi":"10.1038/s41467-025-65911-9","article_number":"10028","language":[{"iso":"eng"}],"date_updated":"2025-12-17T11:36:14Z","publication_status":"published","intvolume":" 16","title":"Quantum teleportation with dissimilar quantum dots over a hybrid quantum network","year":"2025","publication_identifier":{"issn":["2041-1723"]},"author":[{"first_name":"Alessandro","last_name":"Laneve","full_name":"Laneve, Alessandro"},{"full_name":"Ronco, Giuseppe","first_name":"Giuseppe","last_name":"Ronco"},{"first_name":"Mattia","last_name":"Beccaceci","full_name":"Beccaceci, Mattia"},{"full_name":"Barigelli, Paolo","first_name":"Paolo","last_name":"Barigelli"},{"id":"94793","full_name":"Salusti, Francesco","last_name":"Salusti","first_name":"Francesco"},{"last_name":"Claro-Rodriguez","first_name":"Nicolas","full_name":"Claro-Rodriguez, Nicolas"},{"last_name":"De Pascalis","first_name":"Giorgio","full_name":"De Pascalis, Giorgio"},{"full_name":"Suprano, Alessia","first_name":"Alessia","last_name":"Suprano"},{"first_name":"Leone","last_name":"Chiaudano","full_name":"Chiaudano, Leone"},{"full_name":"Schöll, Eva","first_name":"Eva","last_name":"Schöll"},{"full_name":"Hanschke, Lukas","last_name":"Hanschke","first_name":"Lukas"},{"full_name":"Krieger, Tobias M.","first_name":"Tobias M.","last_name":"Krieger"},{"full_name":"Buchinger, Quirin","first_name":"Quirin","last_name":"Buchinger"},{"full_name":"Covre da Silva, Saimon F.","first_name":"Saimon F.","last_name":"Covre da Silva"},{"last_name":"Neuwirth","first_name":"Julia","full_name":"Neuwirth, Julia"},{"last_name":"Stroj","first_name":"Sandra","full_name":"Stroj, Sandra"},{"last_name":"Höfling","first_name":"Sven","full_name":"Höfling, Sven"},{"full_name":"Huber-Loyola, Tobias","first_name":"Tobias","last_name":"Huber-Loyola"},{"last_name":"Usuga Castaneda","first_name":"Mario A.","full_name":"Usuga Castaneda, Mario A."},{"last_name":"Carvacho","first_name":"Gonzalo","full_name":"Carvacho, Gonzalo"},{"full_name":"Spagnolo, Nicolò","last_name":"Spagnolo","first_name":"Nicolò"},{"first_name":"Michele B.","last_name":"Rota","full_name":"Rota, Michele B."},{"full_name":"Basso Basset, Francesco","first_name":"Francesco","last_name":"Basso Basset"},{"last_name":"Rastelli","first_name":"Armando","full_name":"Rastelli, Armando"},{"full_name":"Sciarrino, Fabio","first_name":"Fabio","last_name":"Sciarrino"},{"full_name":"Jöns, Klaus","first_name":"Klaus","last_name":"Jöns","id":"85353"},{"full_name":"Trotta, Rinaldo","last_name":"Trotta","first_name":"Rinaldo"}],"citation":{"ama":"Laneve A, Ronco G, Beccaceci M, et al. Quantum teleportation with dissimilar quantum dots over a hybrid quantum network. Nature Communications. 2025;16(1). doi:10.1038/s41467-025-65911-9","short":"A. Laneve, G. Ronco, M. Beccaceci, P. Barigelli, F. Salusti, N. Claro-Rodriguez, G. De Pascalis, A. Suprano, L. Chiaudano, E. Schöll, L. Hanschke, T.M. Krieger, Q. Buchinger, S.F. Covre da Silva, J. Neuwirth, S. Stroj, S. Höfling, T. Huber-Loyola, M.A. Usuga Castaneda, G. Carvacho, N. Spagnolo, M.B. Rota, F. Basso Basset, A. Rastelli, F. Sciarrino, K. Jöns, R. Trotta, Nature Communications 16 (2025).","chicago":"Laneve, Alessandro, Giuseppe Ronco, Mattia Beccaceci, Paolo Barigelli, Francesco Salusti, Nicolas Claro-Rodriguez, Giorgio De Pascalis, et al. “Quantum Teleportation with Dissimilar Quantum Dots over a Hybrid Quantum Network.” Nature Communications 16, no. 1 (2025). https://doi.org/10.1038/s41467-025-65911-9.","bibtex":"@article{Laneve_Ronco_Beccaceci_Barigelli_Salusti_Claro-Rodriguez_De Pascalis_Suprano_Chiaudano_Schöll_et al._2025, title={Quantum teleportation with dissimilar quantum dots over a hybrid quantum network}, volume={16}, DOI={10.1038/s41467-025-65911-9}, number={110028}, journal={Nature Communications}, publisher={Springer Science and Business Media LLC}, author={Laneve, Alessandro and Ronco, Giuseppe and Beccaceci, Mattia and Barigelli, Paolo and Salusti, Francesco and Claro-Rodriguez, Nicolas and De Pascalis, Giorgio and Suprano, Alessia and Chiaudano, Leone and Schöll, Eva and et al.}, year={2025} }","mla":"Laneve, Alessandro, et al. “Quantum Teleportation with Dissimilar Quantum Dots over a Hybrid Quantum Network.” Nature Communications, vol. 16, no. 1, 10028, Springer Science and Business Media LLC, 2025, doi:10.1038/s41467-025-65911-9.","apa":"Laneve, A., Ronco, G., Beccaceci, M., Barigelli, P., Salusti, F., Claro-Rodriguez, N., De Pascalis, G., Suprano, A., Chiaudano, L., Schöll, E., Hanschke, L., Krieger, T. M., Buchinger, Q., Covre da Silva, S. F., Neuwirth, J., Stroj, S., Höfling, S., Huber-Loyola, T., Usuga Castaneda, M. A., … Trotta, R. (2025). Quantum teleportation with dissimilar quantum dots over a hybrid quantum network. Nature Communications, 16(1), Article 10028. https://doi.org/10.1038/s41467-025-65911-9","ieee":"A. Laneve et al., “Quantum teleportation with dissimilar quantum dots over a hybrid quantum network,” Nature Communications, vol. 16, no. 1, Art. no. 10028, 2025, doi: 10.1038/s41467-025-65911-9."},"user_id":"48188","volume":16,"_id":"62861","publisher":"Springer Science and Business Media LLC","status":"public"},{"date_created":"2025-12-18T09:07:38Z","department":[{"_id":"151"}],"type":"conference","citation":{"mla":"Löwen, Alexander, et al. “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems.” 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2025, doi:10.1109/etfa65518.2025.11205799.","bibtex":"@inproceedings{Löwen_Quirin_Hesse_Aimiyekagbon_Sextro_2025, title={Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems}, DOI={10.1109/etfa65518.2025.11205799}, booktitle={2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)}, publisher={IEEE}, author={Löwen, Alexander and Quirin, Dennis and Hesse, Marc and Aimiyekagbon, Osarenren Kennedy and Sextro, Walter}, year={2025} }","ama":"Löwen A, Quirin D, Hesse M, Aimiyekagbon OK, Sextro W. Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems. In: 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA). IEEE; 2025. doi:10.1109/etfa65518.2025.11205799","ieee":"A. Löwen, D. Quirin, M. Hesse, O. K. Aimiyekagbon, and W. Sextro, “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems,” presented at the 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), Porto, 2025, doi: 10.1109/etfa65518.2025.11205799.","apa":"Löwen, A., Quirin, D., Hesse, M., Aimiyekagbon, O. K., & Sextro, W. (2025). Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems. 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA). 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), Porto. https://doi.org/10.1109/etfa65518.2025.11205799","short":"A. Löwen, D. Quirin, M. Hesse, O.K. Aimiyekagbon, W. Sextro, in: 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA), IEEE, 2025.","chicago":"Löwen, Alexander, Dennis Quirin, Marc Hesse, Osarenren Kennedy Aimiyekagbon, and Walter Sextro. “Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems.” In 2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA). IEEE, 2025. https://doi.org/10.1109/etfa65518.2025.11205799."},"publication":"2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)","project":[{"name":"Industrie 4.0 Ökosystem für den automatisierten Einsatz von datengetriebenen Services (I4.0AutoServ)","_id":"1483"}],"related_material":{"link":[{"url":"https://ieeexplore.ieee.org/document/11205799","relation":"confirmation"}]},"abstract":[{"lang":"eng","text":"The integration of data-driven models and specifically machine learning for conditon monitoring and predictive maintenance into companies, especially small and medium-sized enterprises, offers significant opportunities in reducing costs, operating more sustainably, and maintaining long-term competitiveness. However, many small and medium-sized enterprises lack the necessary resources and expertise to derive knowledge from data and integrate their own machine learning based solutions. To address this challenge, a framework is presented that enables the automated generation of data-driven models with a particular focus on condition monitoring and predictive maintenance, but applicable to other use cases as well. Using a dataset from the 2022 data challenge of the prognostics and health management society, it is demonstrated that the framework can generate high-performing models, achieving F1-scores up to 0.998, exemplarily for a classification task."}],"_id":"63193","publisher":"IEEE","language":[{"iso":"eng"}],"user_id":"47233","doi":"10.1109/etfa65518.2025.11205799","author":[{"id":"47233","last_name":"Löwen","first_name":"Alexander","full_name":"Löwen, Alexander"},{"first_name":"Dennis","last_name":"Quirin","full_name":"Quirin, Dennis"},{"last_name":"Hesse","first_name":"Marc","full_name":"Hesse, Marc"},{"id":"9557","last_name":"Aimiyekagbon","first_name":"Osarenren Kennedy","full_name":"Aimiyekagbon, Osarenren Kennedy"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"conference":{"location":"Porto","name":"2025 IEEE 30th International Conference on Emerging Technologies and Factory Automation (ETFA)"},"status":"public","year":"2025","title":"Facilitating the Automated Generation of Data-Driven Models for the Diagnostics and Prognostics of Technical Systems","publication_status":"published","date_updated":"2025-12-18T09:12:48Z"},{"_id":"63344","publisher":"Springer Science and Business Media LLC","volume":91,"user_id":"31496","status":"public","citation":{"apa":"Winkler, M. (2025). Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters. Applied Mathematics &amp; Optimization, 91(2), Article 44. https://doi.org/10.1007/s00245-025-10243-9","ieee":"M. Winkler, “Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters,” Applied Mathematics &amp; Optimization, vol. 91, no. 2, Art. no. 44, 2025, doi: 10.1007/s00245-025-10243-9.","chicago":"Winkler, Michael. “Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters.” Applied Mathematics &amp; Optimization 91, no. 2 (2025). https://doi.org/10.1007/s00245-025-10243-9.","short":"M. Winkler, Applied Mathematics &amp; Optimization 91 (2025).","mla":"Winkler, Michael. “Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters.” Applied Mathematics &amp; Optimization, vol. 91, no. 2, 44, Springer Science and Business Media LLC, 2025, doi:10.1007/s00245-025-10243-9.","ama":"Winkler M. Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters. Applied Mathematics &amp; Optimization. 2025;91(2). doi:10.1007/s00245-025-10243-9","bibtex":"@article{Winkler_2025, title={Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters}, volume={91}, DOI={10.1007/s00245-025-10243-9}, number={244}, journal={Applied Mathematics &amp; Optimization}, publisher={Springer Science and Business Media LLC}, author={Winkler, Michael}, year={2025} }"},"language":[{"iso":"eng"}],"article_number":"44","doi":"10.1007/s00245-025-10243-9","publication_identifier":{"issn":["0095-4616","1432-0606"]},"author":[{"id":"31496","last_name":"Winkler","first_name":"Michael","full_name":"Winkler, Michael"}],"title":"Rough Data in an Evolution System Generalizing 1D Thermoviscoelasticity with Temperature-Dependent Parameters","year":"2025","intvolume":" 91","date_updated":"2025-12-18T20:20:16Z","publication_status":"published","date_created":"2025-12-18T20:20:06Z","type":"journal_article","publication":"Applied Mathematics & Optimization","issue":"2","abstract":[{"lang":"eng","text":"Abstract\r\n A Neumann-type initial-boundary value problem for \r\n \r\n $$\\begin{aligned} \\left\\{ \\begin{array}{l} u_{tt} = \\nabla \\cdot (\\gamma (\\Theta ) \\nabla u_t) + a \\nabla \\cdot (\\gamma (\\Theta ) \\nabla u) + \\nabla \\cdot f(\\Theta ), \\\\ \\Theta _t = D\\Delta \\Theta + \\Gamma (\\Theta ) |\\nabla u_t|^2 + F(\\Theta )\\cdot \\nabla u_t, \\end{array} \\right. \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n u\r\n \r\n tt\r\n \r\n \r\n =\r\n ∇\r\n ·\r\n \r\n (\r\n γ\r\n \r\n (\r\n Θ\r\n )\r\n \r\n ∇\r\n \r\n u\r\n t\r\n \r\n )\r\n \r\n +\r\n a\r\n ∇\r\n ·\r\n \r\n (\r\n γ\r\n \r\n (\r\n Θ\r\n )\r\n \r\n ∇\r\n u\r\n )\r\n \r\n +\r\n ∇\r\n ·\r\n f\r\n \r\n (\r\n Θ\r\n )\r\n \r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n Θ\r\n t\r\n \r\n =\r\n D\r\n Δ\r\n Θ\r\n +\r\n Γ\r\n \r\n (\r\n Θ\r\n )\r\n \r\n \r\n \r\n |\r\n ∇\r\n \r\n u\r\n t\r\n \r\n |\r\n \r\n 2\r\n \r\n +\r\n F\r\n \r\n (\r\n Θ\r\n )\r\n \r\n ·\r\n ∇\r\n \r\n u\r\n t\r\n \r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n is considered in a smoothly bounded domain \r\n \r\n $$\\Omega \\subset \\mathbb {R}^n$$\r\n \r\n \r\n Ω\r\n ⊂\r\n \r\n \r\n R\r\n \r\n n\r\n \r\n \r\n \r\n \r\n , \r\n \r\n $$n\\ge 1$$\r\n \r\n \r\n n\r\n ≥\r\n 1\r\n \r\n \r\n \r\n . In the case when \r\n \r\n $$n=1$$\r\n \r\n \r\n n\r\n =\r\n 1\r\n \r\n \r\n \r\n , \r\n \r\n $$\\gamma \\equiv \\Gamma $$\r\n \r\n \r\n γ\r\n ≡\r\n Γ\r\n \r\n \r\n \r\n and \r\n \r\n $$f\\equiv F$$\r\n \r\n \r\n f\r\n ≡\r\n F\r\n \r\n \r\n \r\n , this system coincides with the standard model for heat generation in a viscoelastic material of Kelvin-Voigt type, well-understood in situations in which \r\n \r\n $$\\gamma =const$$\r\n \r\n \r\n γ\r\n =\r\n c\r\n o\r\n n\r\n s\r\n t\r\n \r\n \r\n \r\n . Covering scenarios in which all key ingredients \r\n \r\n $$\\gamma ,\\Gamma ,f$$\r\n \r\n \r\n γ\r\n ,\r\n Γ\r\n ,\r\n f\r\n \r\n \r\n \r\n and F may depend on the temperature \r\n \r\n $$\\Theta $$\r\n \r\n Θ\r\n \r\n \r\n here, for initial data which merely satisfy \r\n \r\n $$u_0\\in W^{1,p+2}(\\Omega )$$\r\n \r\n \r\n \r\n u\r\n 0\r\n \r\n ∈\r\n \r\n W\r\n \r\n 1\r\n ,\r\n p\r\n +\r\n 2\r\n \r\n \r\n \r\n (\r\n Ω\r\n )\r\n \r\n \r\n \r\n \r\n , \r\n \r\n $$u_{0t}\\in W^{1,p}(\\Omega )$$\r\n \r\n \r\n \r\n u\r\n \r\n 0\r\n t\r\n \r\n \r\n ∈\r\n \r\n W\r\n \r\n 1\r\n ,\r\n p\r\n \r\n \r\n \r\n (\r\n Ω\r\n )\r\n \r\n \r\n \r\n \r\n and \r\n \r\n $$\\Theta _0\\in W^{1,p}(\\Omega )$$\r\n \r\n \r\n \r\n Θ\r\n 0\r\n \r\n ∈\r\n \r\n W\r\n \r\n 1\r\n ,\r\n p\r\n \r\n \r\n \r\n (\r\n Ω\r\n )\r\n \r\n \r\n \r\n \r\n with some \r\n \r\n $$p\\ge 2$$\r\n \r\n \r\n p\r\n ≥\r\n 2\r\n \r\n \r\n \r\n such that \r\n \r\n $$p>n$$\r\n \r\n \r\n p\r\n >\r\n n\r\n \r\n \r\n \r\n , a result on local-in-time existence and uniqueness is derived in a natural framework of weak solvability."}]},{"language":[{"iso":"eng"}],"doi":"10.1007/s41808-025-00316-9","title":"Exactly wave-type homoclinic orbits and emergence of transient exponential growth in a super-fast diffusion equation","year":"2025","author":[{"first_name":"Celina","last_name":"Hanfland","full_name":"Hanfland, Celina"},{"full_name":"Winkler, Michael","last_name":"Winkler","first_name":"Michael","id":"31496"}],"publication_identifier":{"issn":["2296-9020","2296-9039"]},"date_updated":"2025-12-18T20:16:49Z","publication_status":"published","intvolume":" 11","date_created":"2025-12-18T18:57:21Z","type":"journal_article","publication":"Journal of Elliptic and Parabolic Equations","issue":"3","abstract":[{"lang":"eng","text":"Abstract\r\n \r\n For\r\n \r\n \r\n $$p>2$$\r\n \r\n \r\n p\r\n >\r\n 2\r\n \r\n \r\n \r\n \r\n , the equation\r\n \r\n \r\n $$\\begin{aligned} u_t = u^p u_{xx}, \\qquad x\\in \\mathbb {R}, \\ t\\in \\mathbb {R}, \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n u\r\n t\r\n \r\n =\r\n \r\n u\r\n p\r\n \r\n \r\n u\r\n \r\n xx\r\n \r\n \r\n ,\r\n \r\n x\r\n ∈\r\n R\r\n ,\r\n \r\n t\r\n ∈\r\n R\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n is shown to admit positive and spatially increasing smooth solutions on all of\r\n \r\n \r\n $$\\mathbb {R}\\times \\mathbb {R}$$\r\n \r\n \r\n R\r\n ×\r\n R\r\n \r\n \r\n \r\n \r\n which are precisely of the form of an accelerating wave for\r\n \r\n \r\n $$t<0$$\r\n \r\n \r\n t\r\n <\r\n 0\r\n \r\n \r\n \r\n \r\n , and of a wave slowing down for\r\n \r\n \r\n $$t>0$$\r\n \r\n \r\n t\r\n >\r\n 0\r\n \r\n \r\n \r\n \r\n . These solutions satisfy\r\n \r\n \r\n $$u(\\cdot ,t)\\rightarrow 0$$\r\n \r\n \r\n u\r\n (\r\n ·\r\n ,\r\n t\r\n )\r\n →\r\n 0\r\n \r\n \r\n \r\n \r\n in\r\n \r\n \r\n $$L^\\infty _{loc}(\\mathbb {R})$$\r\n \r\n \r\n \r\n L\r\n \r\n loc\r\n \r\n ∞\r\n \r\n \r\n (\r\n R\r\n )\r\n \r\n \r\n \r\n \r\n \r\n as\r\n \r\n \r\n $$t\\rightarrow + \\infty $$\r\n \r\n \r\n t\r\n →\r\n +\r\n ∞\r\n \r\n \r\n \r\n \r\n and as\r\n \r\n \r\n $$t\\rightarrow -\\infty $$\r\n \r\n \r\n t\r\n →\r\n -\r\n ∞\r\n \r\n \r\n \r\n \r\n , and exhibit a yet apparently undiscovered phenomenon of transient rapid spatial growth, in the sense that\r\n \r\n \r\n $$\\begin{aligned} \\lim _{x\\rightarrow +\\infty } x^{-1} u(x,t) \\quad \\text{ exists } \\text{ for } \\text{ all } t<0, \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n lim\r\n \r\n x\r\n →\r\n +\r\n ∞\r\n \r\n \r\n \r\n x\r\n \r\n -\r\n 1\r\n \r\n \r\n u\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n \r\n \r\n exists\r\n \r\n \r\n for\r\n \r\n \r\n all\r\n \r\n t\r\n <\r\n 0\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n that\r\n \r\n \r\n $$\\begin{aligned} \\lim _{x\\rightarrow +\\infty } x^{-\\frac{2}{p}} u(x,t) \\quad \\text{ exists } \\text{ for } \\text{ all } t>0, \\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n lim\r\n \r\n x\r\n →\r\n +\r\n ∞\r\n \r\n \r\n \r\n x\r\n \r\n -\r\n \r\n 2\r\n p\r\n \r\n \r\n \r\n u\r\n \r\n (\r\n x\r\n ,\r\n t\r\n )\r\n \r\n \r\n \r\n exists\r\n \r\n \r\n for\r\n \r\n \r\n all\r\n \r\n t\r\n >\r\n 0\r\n ,\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n but that\r\n \r\n \r\n $$\\begin{aligned} u(x,0)=K e^{\\alpha x} \\qquad \\text{ for } \\text{ all } x\\in \\mathbb {R}\\end{aligned}$$\r\n \r\n \r\n \r\n \r\n \r\n \r\n u\r\n \r\n (\r\n x\r\n ,\r\n 0\r\n )\r\n \r\n =\r\n K\r\n \r\n e\r\n \r\n α\r\n x\r\n \r\n \r\n \r\n \r\n for\r\n \r\n \r\n all\r\n \r\n x\r\n ∈\r\n R\r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n \r\n with some\r\n \r\n \r\n $$K>0$$\r\n \r\n \r\n K\r\n >\r\n 0\r\n \r\n \r\n \r\n \r\n and\r\n \r\n \r\n $$\\alpha >0$$\r\n \r\n \r\n α\r\n >\r\n 0\r\n \r\n \r\n \r\n \r\n .\r\n "}],"page":"2041-2063","_id":"63242","publisher":"Springer Science and Business Media LLC","user_id":"31496","volume":11,"status":"public","citation":{"apa":"Hanfland, C., & Winkler, M. (2025). Exactly wave-type homoclinic orbits and emergence of transient exponential growth in a super-fast diffusion equation. Journal of Elliptic and Parabolic Equations, 11(3), 2041–2063. https://doi.org/10.1007/s41808-025-00316-9","ieee":"C. Hanfland and M. Winkler, “Exactly wave-type homoclinic orbits and emergence of transient exponential growth in a super-fast diffusion equation,” Journal of Elliptic and Parabolic Equations, vol. 11, no. 3, pp. 2041–2063, 2025, doi: 10.1007/s41808-025-00316-9.","chicago":"Hanfland, Celina, and Michael Winkler. “Exactly Wave-Type Homoclinic Orbits and Emergence of Transient Exponential Growth in a Super-Fast Diffusion Equation.” Journal of Elliptic and Parabolic Equations 11, no. 3 (2025): 2041–63. https://doi.org/10.1007/s41808-025-00316-9.","short":"C. Hanfland, M. Winkler, Journal of Elliptic and Parabolic Equations 11 (2025) 2041–2063.","mla":"Hanfland, Celina, and Michael Winkler. “Exactly Wave-Type Homoclinic Orbits and Emergence of Transient Exponential Growth in a Super-Fast Diffusion Equation.” Journal of Elliptic and Parabolic Equations, vol. 11, no. 3, Springer Science and Business Media LLC, 2025, pp. 2041–63, doi:10.1007/s41808-025-00316-9.","ama":"Hanfland C, Winkler M. Exactly wave-type homoclinic orbits and emergence of transient exponential growth in a super-fast diffusion equation. Journal of Elliptic and Parabolic Equations. 2025;11(3):2041-2063. doi:10.1007/s41808-025-00316-9","bibtex":"@article{Hanfland_Winkler_2025, title={Exactly wave-type homoclinic orbits and emergence of transient exponential growth in a super-fast diffusion equation}, volume={11}, DOI={10.1007/s41808-025-00316-9}, number={3}, journal={Journal of Elliptic and Parabolic Equations}, publisher={Springer Science and Business Media LLC}, author={Hanfland, Celina and Winkler, Michael}, year={2025}, pages={2041–2063} }"}},{"intvolume":" 9","date_updated":"2025-12-22T10:39:34Z","publication_status":"published","publication_identifier":{"issn":["2504-4494"]},"author":[{"id":"7888","full_name":"Wiens, Eugen","last_name":"Wiens","first_name":"Eugen"},{"first_name":"Dina","last_name":"Hijazi","full_name":"Hijazi, Dina"},{"full_name":"Jüttner, Maik","last_name":"Jüttner","first_name":"Maik"},{"last_name":"Homberg","first_name":"Werner","full_name":"Homberg, Werner","id":"233"},{"last_name":"Kensy","first_name":"Mark Dennis","full_name":"Kensy, Mark Dennis"},{"full_name":"Tillmann, Wolfgang","last_name":"Tillmann","first_name":"Wolfgang"}],"title":"In Situ Investigation of the Frictional Behaviour in Friction-Spinning","year":"2025","doi":"10.3390/jmmp9090302","language":[{"iso":"eng"}],"article_number":"302","abstract":[{"text":"Friction-spinning is an incremental thermomechanical forming process that has huge potential due to its simple yet effective mechanism of utilising friction between a rotating workpiece and a forming tool to increase the workpiece’s temperature, which reduces the required forces and increases formability during the forming process. Despite the simplicity of the process’s setup, the thermomechanical loads and high relative velocities involved, especially in the contact zone, make the application of classical methods for characterising friction inaccurate. It is therefore essential to find a way to describe the frictional behaviour under real process conditions to be able to gain a holistic understanding of the process and the effect of the adjustable parameters on the outcome, especially the temperature. To achieve this goal, an experimental setup that considers the actual process boundary conditions in forming tubes made of EN AW-6060 was used to measure in situ normal and frictional forces, in addition to process temperatures, under varying rotational speed and feed rate values.","lang":"eng"}],"publication":"Journal of Manufacturing and Materials Processing","issue":"9","department":[{"_id":"156"}],"type":"journal_article","date_created":"2025-12-19T10:05:03Z","status":"public","volume":9,"user_id":"7888","publisher":"MDPI AG","_id":"63347","quality_controlled":"1","citation":{"mla":"Wiens, Eugen, et al. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” Journal of Manufacturing and Materials Processing, vol. 9, no. 9, 302, MDPI AG, 2025, doi:10.3390/jmmp9090302.","bibtex":"@article{Wiens_Hijazi_Jüttner_Homberg_Kensy_Tillmann_2025, title={In Situ Investigation of the Frictional Behaviour in Friction-Spinning}, volume={9}, DOI={10.3390/jmmp9090302}, number={9302}, journal={Journal of Manufacturing and Materials Processing}, publisher={MDPI AG}, author={Wiens, Eugen and Hijazi, Dina and Jüttner, Maik and Homberg, Werner and Kensy, Mark Dennis and Tillmann, Wolfgang}, year={2025} }","ama":"Wiens E, Hijazi D, Jüttner M, Homberg W, Kensy MD, Tillmann W. In Situ Investigation of the Frictional Behaviour in Friction-Spinning. Journal of Manufacturing and Materials Processing. 2025;9(9). doi:10.3390/jmmp9090302","ieee":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M. D. Kensy, and W. Tillmann, “In Situ Investigation of the Frictional Behaviour in Friction-Spinning,” Journal of Manufacturing and Materials Processing, vol. 9, no. 9, Art. no. 302, 2025, doi: 10.3390/jmmp9090302.","apa":"Wiens, E., Hijazi, D., Jüttner, M., Homberg, W., Kensy, M. D., & Tillmann, W. (2025). In Situ Investigation of the Frictional Behaviour in Friction-Spinning. Journal of Manufacturing and Materials Processing, 9(9), Article 302. https://doi.org/10.3390/jmmp9090302","chicago":"Wiens, Eugen, Dina Hijazi, Maik Jüttner, Werner Homberg, Mark Dennis Kensy, and Wolfgang Tillmann. “In Situ Investigation of the Frictional Behaviour in Friction-Spinning.” Journal of Manufacturing and Materials Processing 9, no. 9 (2025). https://doi.org/10.3390/jmmp9090302.","short":"E. Wiens, D. Hijazi, M. Jüttner, W. Homberg, M.D. Kensy, W. Tillmann, Journal of Manufacturing and Materials Processing 9 (2025)."}},{"publication_identifier":{"issn":["2474-395X"]},"author":[{"id":"65085","last_name":"Yang","orcid":"0000-0001-9201-9304","first_name":"Keke","full_name":"Yang, Keke"},{"full_name":"Biegler, Max","last_name":"Biegler","first_name":"Max"},{"full_name":"Happe, Linus","first_name":"Linus","last_name":"Happe"},{"id":"30228","first_name":"Marius","last_name":"Striewe","full_name":"Striewe, Marius"},{"last_name":"Olfert","first_name":"Viktoria","full_name":"Olfert, Viktoria","id":"5974"},{"id":"7728","last_name":"Hein","first_name":"David","full_name":"Hein, David"},{"last_name":"Rethmeier","first_name":"Michael ","full_name":"Rethmeier, Michael "},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"title":"Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components","year":"2025","intvolume":" 52","publication_status":"published","date_updated":"2025-12-26T13:44:36Z","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.21741/9781644903551-42","publication":"Materials Research Proceedings","abstract":[{"text":"Abstract. Liquid Metal Embrittlement (LME) cracking is a well-documented issue encountered during resistance spot welding (RSW) of zinc-coated advanced high-strength steels (AHSS) in automotive manufacturing. Given that existing research has predominantly focused on laboratory-scale samples and lacks investigation into the load-bearing capacity of joints under crash conditions, this study aims to fill these gaps by analyzing third-generation zinc-coated AHSS. S-Rail components were produced through stamping to replicate real-world manufacturing conditions and geometries of automotive parts. To account for the disturbances typically encountered in production, samples with LME cracks were intentionally fabricated. Subsequently, a modified three-point bending test, assisted by numerical simulations, was developed to effectively apply loads to the weld spots of the S-Rail components. Results from crash tests demonstrated that observed light crack severity does not significantly compromise the joint's load-bearing capacity or lead to earlier joint failure.","lang":"eng"}],"date_created":"2025-03-25T07:59:49Z","file":[{"date_created":"2025-03-25T08:02:30Z","creator":"kekeyang","content_type":"application/pdf","success":1,"file_id":"59092","access_level":"closed","file_size":1901767,"file_name":"Shemat.pdf","date_updated":"2025-03-25T08:02:30Z","relation":"main_file"}],"department":[{"_id":"157"}],"type":"conference","status":"public","has_accepted_license":"1","_id":"59091","publisher":"Materials Research Forum LLC","volume":52,"user_id":"65085","ddc":["600"],"citation":{"apa":"Yang, K., Biegler, M., Happe, L., Striewe, M., Olfert, V., Hein, D., Rethmeier, M., & Meschut, G. (2025). Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components. Materials Research Proceedings, 52. https://doi.org/10.21741/9781644903551-42","ieee":"K. Yang et al., “Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components,” in Materials Research Proceedings, 2025, vol. 52, doi: 10.21741/9781644903551-42.","chicago":"Yang, Keke, Max Biegler, Linus Happe, Marius Striewe, Viktoria Olfert, David Hein, Michael Rethmeier, and Gerson Meschut. “Influence of Liquid Metal Embrittlement on Load-Bearing Capacity of Resistance Spot Welds under Crash Loads: A Study Based on S-Rail Components.” In Materials Research Proceedings, Vol. 52. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903551-42.","short":"K. Yang, M. Biegler, L. Happe, M. Striewe, V. Olfert, D. Hein, M. Rethmeier, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","mla":"Yang, Keke, et al. “Influence of Liquid Metal Embrittlement on Load-Bearing Capacity of Resistance Spot Welds under Crash Loads: A Study Based on S-Rail Components.” Materials Research Proceedings, vol. 52, Materials Research Forum LLC, 2025, doi:10.21741/9781644903551-42.","ama":"Yang K, Biegler M, Happe L, et al. Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components. In: Materials Research Proceedings. Vol 52. Materials Research Forum LLC; 2025. doi:10.21741/9781644903551-42","bibtex":"@inproceedings{Yang_Biegler_Happe_Striewe_Olfert_Hein_Rethmeier_Meschut_2025, title={Influence of Liquid metal embrittlement on load-bearing capacity of resistance spot welds under crash loads: A study based on S-Rail components}, volume={52}, DOI={10.21741/9781644903551-42}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Yang, Keke and Biegler, Max and Happe, Linus and Striewe, Marius and Olfert, Viktoria and Hein, David and Rethmeier, Michael and Meschut, Gerson}, year={2025} }"},"file_date_updated":"2025-03-25T08:02:30Z","quality_controlled":"1","oa":"1"},{"date_created":"2025-07-14T13:25:26Z","type":"conference","department":[{"_id":"157"}],"publication":"Materials Research Proceedings","abstract":[{"text":"Abstract. In the field of online condition monitoring, non-destructive testing methods using active acoustic testing [1] emerged as innovative tools. These techniques are particularly effective because damage in joined structures leads to significant changes in their vibrational characteristics. However, the consistent use of online condition monitoring through active acoustic testing combined with complex pattern recognition for early crack detection in joined components has not yet been fully established. This research aims to develop an online crack detection system employing pattern recognition techniques under cyclic loading during fatigue tests, utilizing non-contact active acoustic testing with laser vibrometry. Due to the wide range of materials that can be joined, mechanical joining processes can be used in many different industry branches. Self-pierce riveting (SPR), in particular, is a well-established joining process. Therefore, the investigations for online crack detection initially focus on SPR joints. To achieve this, the fatigue behavior of SPR joints in a lap-shear configuration was characterized. Experimental fatigue testing demonstrated that SPR joint failure occurs either through cracks propagating in the sheet material away from the rivet or in the rivet foot, depending on the material combination. Laser vibrometry has been successfully used as a crack detection system and has proven to be effective in detecting crack initiation in SPR joints. Cracks can be detected without contact regardless of the material combination, the damage location, the size of the damage, or the type of damage. The optimization of the crack detection system involved several key enhancements, including adjusting data acquisition to improve crack detection, incorporating principal component analysis (PCA) to reduce dimensionality, and implementing a classification model based on a global training dataset. An intuitive, problem-specific software demonstrator for analyzing the crack initiation behavior of SPR joints under cyclic loading was developed and iteratively optimized. Future work will focus on the implementation of an autoencoder network to further enhance crack detection capabilities.","lang":"eng"}],"main_file_link":[{"open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.21741/9781644903599-154","title":"Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry","year":"2025","publication_identifier":{"issn":["2474-395X"]},"author":[{"first_name":"Viktoria","last_name":"Olfert","full_name":"Olfert, Viktoria","id":"5974"},{"id":"65085","orcid":"0000-0001-9201-9304","first_name":"Keke","last_name":"Yang","full_name":"Yang, Keke"},{"last_name":"Gollnick","first_name":"Maik","full_name":"Gollnick, Maik"},{"full_name":"Krause, Jacob","last_name":"Krause","first_name":"Jacob"},{"first_name":"David","last_name":"Hein","full_name":"Hein, David","id":"7728"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson"}],"date_updated":"2025-12-26T13:45:01Z","publication_status":"published","intvolume":" 54","oa":"1","citation":{"mla":"Olfert, Viktoria, et al. “Analysis of Fatigue Behaviour of Self-Piercing Riveted Joints under Cyclic Loading Using Laser Vibrometry.” Materials Research Proceedings, vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-154.","bibtex":"@inproceedings{Olfert_Yang_Gollnick_Krause_Hein_Meschut_2025, title={Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry}, volume={54}, DOI={10.21741/9781644903599-154}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Olfert, Viktoria and Yang, Keke and Gollnick, Maik and Krause, Jacob and Hein, David and Meschut, Gerson}, year={2025} }","ama":"Olfert V, Yang K, Gollnick M, Krause J, Hein D, Meschut G. Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry. In: Materials Research Proceedings. Vol 54. Materials Research Forum LLC; 2025. doi:10.21741/9781644903599-154","ieee":"V. Olfert, K. Yang, M. Gollnick, J. Krause, D. Hein, and G. Meschut, “Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry,” in Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-154.","apa":"Olfert, V., Yang, K., Gollnick, M., Krause, J., Hein, D., & Meschut, G. (2025). Analysis of fatigue behaviour of self-piercing riveted joints under cyclic loading using laser vibrometry. Materials Research Proceedings, 54. https://doi.org/10.21741/9781644903599-154","short":"V. Olfert, K. Yang, M. Gollnick, J. Krause, D. Hein, G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC, 2025.","chicago":"Olfert, Viktoria, Keke Yang, Maik Gollnick, Jacob Krause, David Hein, and Gerson Meschut. “Analysis of Fatigue Behaviour of Self-Piercing Riveted Joints under Cyclic Loading Using Laser Vibrometry.” In Materials Research Proceedings, Vol. 54. Materials Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-154."},"quality_controlled":"1","_id":"60604","publisher":"Materials Research Forum LLC","user_id":"65085","volume":54,"status":"public"},{"project":[{"_id":"245","name":"FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken für Leistungsschallanwendungen (NEPTUN)"}],"publication":"2025 International Congress on Ultrasonics","citation":{"bibtex":"@inproceedings{Friesen_Scheidemann_Claes_Hemsel_Henning_2025, place={Paderborn}, title={Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer}, DOI={10.5162/ultrasonic2025/a18-a4}, booktitle={2025 International Congress on Ultrasonics}, publisher={AMA Service GmbH}, author={Friesen, Olga and Scheidemann, Claus and Claes, Leander and Hemsel, Tobias and Henning, Bernd}, year={2025}, pages={138–141} }","ama":"Friesen O, Scheidemann C, Claes L, Hemsel T, Henning B. Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer. In: 2025 International Congress on Ultrasonics. AMA Service GmbH; 2025:138–141. doi:10.5162/ultrasonic2025/a18-a4","mla":"Friesen, Olga, et al. “Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer.” 2025 International Congress on Ultrasonics, AMA Service GmbH, 2025, pp. 138–141, doi:10.5162/ultrasonic2025/a18-a4.","chicago":"Friesen, Olga, Claus Scheidemann, Leander Claes, Tobias Hemsel, and Bernd Henning. “Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer.” In 2025 International Congress on Ultrasonics, 138–141. Paderborn: AMA Service GmbH, 2025. https://doi.org/10.5162/ultrasonic2025/a18-a4.","short":"O. Friesen, C. Scheidemann, L. Claes, T. Hemsel, B. Henning, in: 2025 International Congress on Ultrasonics, AMA Service GmbH, Paderborn, 2025, pp. 138–141.","ieee":"O. Friesen, C. Scheidemann, L. Claes, T. Hemsel, and B. Henning, “Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer,” in 2025 International Congress on Ultrasonics, 2025, pp. 138–141, doi: 10.5162/ultrasonic2025/a18-a4.","apa":"Friesen, O., Scheidemann, C., Claes, L., Hemsel, T., & Henning, B. (2025). Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer. 2025 International Congress on Ultrasonics, 138–141. https://doi.org/10.5162/ultrasonic2025/a18-a4"},"type":"conference","department":[{"_id":"49"},{"_id":"151"}],"place":"Paderborn","date_created":"2025-11-25T12:23:06Z","date_updated":"2026-01-05T08:00:48Z","title":"Sensitivity Analysis and Material Parameter Estimation of a Pre-Stressed Langevin Transducer","status":"public","year":"2025","author":[{"first_name":"Olga","last_name":"Friesen","full_name":"Friesen, Olga","id":"44026"},{"last_name":"Scheidemann","first_name":"Claus","full_name":"Scheidemann, Claus","id":"38259"},{"full_name":"Claes, Leander","first_name":"Leander","orcid":"0000-0002-4393-268X","last_name":"Claes","id":"11829"},{"id":"210","first_name":"Tobias","last_name":"Hemsel","full_name":"Hemsel, Tobias"},{"first_name":"Bernd","last_name":"Henning","full_name":"Henning, Bernd","id":"213"}],"doi":"10.5162/ultrasonic2025/a18-a4","user_id":"11829","page":"138–141","language":[{"iso":"eng"}],"_id":"62299","publisher":"AMA Service GmbH"},{"type":"book_chapter","department":[{"_id":"9"},{"_id":"321"},{"_id":"367"}],"date_created":"2026-01-05T10:24:08Z","place":"Cham","publication":"Lecture Notes in Mechanical Engineering","citation":{"mla":"Bartmann, Finn, et al. “Creep Effects of Thermoplastic Flange Systems.” Lecture Notes in Mechanical Engineering, Springer Nature Switzerland, 2025, doi:10.1007/978-3-032-07392-1_39.","ama":"Bartmann F, Riedl A, Moritzer E. Creep Effects of Thermoplastic Flange Systems. In: Lecture Notes in Mechanical Engineering. Springer Nature Switzerland; 2025. doi:10.1007/978-3-032-07392-1_39","bibtex":"@inbook{Bartmann_Riedl_Moritzer_2025, place={Cham}, title={Creep Effects of Thermoplastic Flange Systems}, DOI={10.1007/978-3-032-07392-1_39}, booktitle={Lecture Notes in Mechanical Engineering}, publisher={Springer Nature Switzerland}, author={Bartmann, Finn and Riedl, Alexander and Moritzer, Elmar}, year={2025} }","apa":"Bartmann, F., Riedl, A., & Moritzer, E. (2025). Creep Effects of Thermoplastic Flange Systems. In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland. https://doi.org/10.1007/978-3-032-07392-1_39","ieee":"F. Bartmann, A. Riedl, and E. 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S., & Schlüter, A. (2025). Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills. Journal of Advanced Joining Processes, 12, Article 100332. https://doi.org/10.1016/j.jajp.2025.100332","ieee":"A. Jordan, L. Hermelingmeier, J. Gilich, G. Meschut, M. S. De Santis, and A. Schlüter, “Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills,” Journal of Advanced Joining Processes, vol. 12, Art. no. 100332, 2025, doi: 10.1016/j.jajp.2025.100332.","short":"A. Jordan, L. Hermelingmeier, J. Gilich, G. Meschut, M.S. De Santis, A. Schlüter, Journal of Advanced Joining Processes 12 (2025).","chicago":"Jordan, Alex, Lucas Hermelingmeier, Julian Gilich, Gerson Meschut, Marco Sebastian De Santis, and Alexander Schlüter. “Comparison of the Economic Efficiency and Sustainability of Two Debonding Processes for Structurally Bonded Sills.” Journal of Advanced Joining Processes 12 (2025). https://doi.org/10.1016/j.jajp.2025.100332.","mla":"Jordan, Alex, et al. “Comparison of the Economic Efficiency and Sustainability of Two Debonding Processes for Structurally Bonded Sills.” Journal of Advanced Joining Processes, vol. 12, 100332, Elsevier, 2025, doi:10.1016/j.jajp.2025.100332.","ama":"Jordan A, Hermelingmeier L, Gilich J, Meschut G, De Santis MS, Schlüter A. Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills. Journal of Advanced Joining Processes. 2025;12. doi:10.1016/j.jajp.2025.100332","bibtex":"@article{Jordan_Hermelingmeier_Gilich_Meschut_De Santis_Schlüter_2025, title={Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills}, volume={12}, DOI={10.1016/j.jajp.2025.100332}, number={100332}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier}, author={Jordan, Alex and Hermelingmeier, Lucas and Gilich, Julian and Meschut, Gerson and De Santis, Marco Sebastian and Schlüter, Alexander}, year={2025} }"},"quality_controlled":"1","oa":"1","status":"public","_id":"60837","publisher":"Elsevier","volume":12,"user_id":"103302","publication":"Journal of Advanced Joining Processes","abstract":[{"lang":"eng","text":"In light of growing demands for resource efficiency and sustainability in vehicle engineering, the environmentally compatible separation of structural adhesive joints is gaining increasing relevance. This study presents a comparative analysis of two physically based debonding methods: the established hot-air process and a cryogenic cold process based on liquid nitrogen (LN2). The primary objective is to assess the ecological impact and process-related sustainability of both approaches.\r\nExperimental investigations were conducted on a component-representative triple-sheet structure that simulates common automotive flange joints. Thermal input was applied either by convective heating using a hot air gun or by direct cooling through a contact-based LN2 tool. The resulting temperature profiles were recorded using spatially distributed thermocouples. Subsequently, the outer panel was selectively debonded to replicate a repair scenario, and the mechanical integrity of the remaining adhesive joint was evaluated through Mode I testing of L-shaped specimens. Process data served as input for an Life Cycle Assessment (LCA) according to DIN EN ISO 14040.\r\nThe cryogenic method achieved a 40% reduction in carbon footprint compared to the hot-air process (0.337 kg vs. 0.559 kg CO2-equivalents), primarily due to its shorter process time and more efficient heat transfer. While the hot-air method’s impact is mainly driven by electrical energy use, that of the cold method stems from cryogenic media consumption. Notwithstanding certain disadvantages in specific impact categories, the LN2-based process exhibits a superior overall ecological performance and signifies a promising solution for repair- and recycling-oriented adhesive separation in structural vehicle applications."}],"date_created":"2025-07-30T11:04:28Z","department":[{"_id":"157"},{"_id":"876"},{"_id":"321"},{"_id":"9"}],"keyword":["Sustainable debonding","Structural adhesives","Sustainable joining technologies","Life Cycle Assessment (LCA)","Automotive repair process","Economically efficient debonding"],"type":"journal_article","author":[{"id":"62451","full_name":"Jordan, Alex","orcid":"0009-0007-9546-6071","last_name":"Jordan","first_name":"Alex"},{"first_name":"Lucas","last_name":"Hermelingmeier","full_name":"Hermelingmeier, Lucas","id":"58649"},{"id":"44391","full_name":"Gilich, Julian","last_name":"Gilich","first_name":"Julian"},{"first_name":"Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson","id":"32056"},{"first_name":"Marco Sebastian","last_name":"De Santis","full_name":"De Santis, Marco Sebastian","id":"52239"},{"id":"103302","full_name":"Schlüter, Alexander","orcid":"0000-0002-2569-1624","last_name":"Schlüter","first_name":"Alexander"}],"publication_identifier":{"issn":["2666-3309"]},"year":"2025","title":"Comparison of the economic efficiency and sustainability of two debonding processes for structurally bonded sills","intvolume":" 12","article_type":"original","date_updated":"2026-01-06T08:22:54Z","publication_status":"published","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://www.sciencedirect.com/science/article/pii/S2666330925000536?via%3Dihub","open_access":"1"}],"article_number":"100332","doi":"10.1016/j.jajp.2025.100332"},{"status":"public","has_accepted_license":"1","_id":"63209","publisher":"Technische Informationsbibliothek","user_id":"97759","citation":{"bibtex":"@book{Haase_Behrendt_Hengsbach_Kunnathully Sathees Kumar_Magerkohl_Magyar_Ponick_Schaper_Zimmer_2025, place={Hannover}, title={Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen}, DOI={10.34657/26753}, publisher={Technische Informationsbibliothek}, author={Haase, Michael and Behrendt, Marius and Hengsbach, Florian and Kunnathully Sathees Kumar, Vinay and Magerkohl, Sebastian and Magyar, Balázs and Ponick, Bernd and Schaper, Mirko and Zimmer, Detmar}, year={2025} }","ama":"Haase M, Behrendt M, Hengsbach F, et al. Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen. Technische Informationsbibliothek; 2025. doi:10.34657/26753","mla":"Haase, Michael, et al. Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen. Technische Informationsbibliothek, 2025, doi:10.34657/26753.","chicago":"Haase, Michael, Marius Behrendt, Florian Hengsbach, Vinay Kunnathully Sathees Kumar, Sebastian Magerkohl, Balázs Magyar, Bernd Ponick, Mirko Schaper, and Detmar Zimmer. Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen. Hannover: Technische Informationsbibliothek, 2025. https://doi.org/10.34657/26753.","short":"M. Haase, M. Behrendt, F. Hengsbach, V. Kunnathully Sathees Kumar, S. Magerkohl, B. Magyar, B. Ponick, M. Schaper, D. Zimmer, Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen, Technische Informationsbibliothek, Hannover, 2025.","ieee":"M. Haase et al., Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen. Hannover: Technische Informationsbibliothek, 2025.","apa":"Haase, M., Behrendt, M., Hengsbach, F., Kunnathully Sathees Kumar, V., Magerkohl, S., Magyar, B., Ponick, B., Schaper, M., & Zimmer, D. (2025). Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen. Technische Informationsbibliothek. https://doi.org/10.34657/26753"},"place":"Hannover","oa":"1","year":"2025","title":"Additive Fertigung im Elektromaschinenbau: Erforschung von Potentialen der additiven Fertigung in Rotoren permanentmagneterregter Synchronmaschinen","author":[{"full_name":"Haase, Michael","last_name":"Haase","first_name":"Michael","id":"35970"},{"first_name":"Marius","last_name":"Behrendt","full_name":"Behrendt, Marius"},{"id":"14073","last_name":"Hengsbach","first_name":"Florian","full_name":"Hengsbach, Florian"},{"id":"60979","first_name":"Vinay","last_name":"Kunnathully Sathees Kumar","full_name":"Kunnathully Sathees Kumar, Vinay"},{"id":"28520","full_name":"Magerkohl, Sebastian","first_name":"Sebastian","last_name":"Magerkohl"},{"last_name":"Magyar","first_name":"Balázs","full_name":"Magyar, Balázs","id":"97759"},{"first_name":"Bernd","last_name":"Ponick","full_name":"Ponick, Bernd"},{"full_name":"Schaper, Mirko","last_name":"Schaper","first_name":"Mirko","id":"43720"},{"id":"604","full_name":"Zimmer, Detmar","last_name":"Zimmer","first_name":"Detmar"}],"publication_status":"published","date_updated":"2026-01-06T08:09:33Z","main_file_link":[{"open_access":"1","url":"https://oa.tib.eu/renate/bitstreams/9121e5bb-d113-4cfe-8fc6-610465afcd66/download"}],"language":[{"iso":"ger"}],"doi":"10.34657/26753","abstract":[{"lang":"ger","text":"Die DFG-Projekte AddFeRo-PM (406108415) und AddFeRo-SR (465089065) untersuchten die Potenziale des LB-PBF/M-Verfahrens zur Herstellung von Rotoren für unterschiedliche elektrische Maschinen. Im interdisziplinären Ansatz wurden Materialentwicklung und mechanische sowie elektromagnetische Optimierung verbunden. Im Projekt „AddFeRo-PM“ wurde der Rotor einer permanentmagneterregten Synchron- maschine (PMSM) untersucht. FeSi erwies sich als geeignete Legierung, konnte aber wegen Spannungsrissen nur bis zu 3 % Siliziumanteil (kurz: FeSi3) verarbeitet werden. Mechanische und elektromagnetische Untersuchungen ermöglichten eine 3D-Optimierung der Rotorgeometrie und -struktur. Der Demonstrator wurde additiv gefertigt und zeigt Leicht-baupotenziale sowie reduzierte Drehmomentwelligkeit. Im Folgeprojekt „AddFeRo-SR“ kam eine Hochtemperatur-Bauraumheizung (HTBH) zum Einsatz, die FeSi mit 6,5 % Siliziumanteil verarbeitbar machte, welches bessere elektro- magnetische Eigenschaften bietet. Sie wurde bei einer Synchron-Reluktanzmaschine (SynRM) getestet. Eine hybride Rotorfertigung erwies sich jedoch aufgrund von HTBH-Einschränkungen als ungeeignet, weshalb eine einteilige Fertigung mit FeSi3 umgesetzt wurde. Experimente bestätigten vergleichbare Betriebsergebnisse zur konventionellen Fertigung bei reduzierter Rotormasse. Zusätzlich wurde eine Methodik entwickelt, um additive Verfahren als Ergänzung zur konventionellen Fertigung zu integrieren. Beide Projekte zeigen das Potenzial additiver Fertigung für Leichtbau und Wirkungsgradsteigerung im Elektromaschinenbau und bieten wertvolle Grundlagen für industrielle Anwendungen."}],"date_created":"2025-12-18T12:14:12Z","keyword":["Additive Fertigung","Elektromotor","Leichtbau","Synchronmotor","DFG"],"type":"report","department":[{"_id":"146"},{"_id":"158"}]}]