[{"oa":"1","project":[{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142: TRR 142","_id":"53"},{"_id":"75","name":"TRR 142 - C5: TRR 142 - Subproject C5"}],"citation":{"ama":"Hammer M, Ebers L, Förstner J. Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber. In: Andrews DL, Galvez EJ, Rubinsztein-Dunlop H, eds. <i>Complex Light and Optical Forces XVI</i>. SPIE; 2022:120170F. doi:<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>","bibtex":"@inproceedings{Hammer_Ebers_Förstner_2022, title={Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber}, DOI={<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>}, booktitle={Complex Light and Optical Forces XVI}, publisher={SPIE}, author={Hammer, Manfred and Ebers, Lena and Förstner, Jens}, editor={Andrews, David L. and Galvez, Enrique J. and Rubinsztein-Dunlop, Halina}, year={2022}, pages={120170F} }","mla":"Hammer, Manfred, et al. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast Circular Step-Index Fiber.” <i>Complex Light and Optical Forces XVI</i>, edited by David L. Andrews et al., SPIE, 2022, p. 120170F, doi:<a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>.","short":"M. Hammer, L. Ebers, J. Förstner, in: D.L. Andrews, E.J. Galvez, H. Rubinsztein-Dunlop (Eds.), Complex Light and Optical Forces XVI, SPIE, 2022, p. 120170F.","chicago":"Hammer, Manfred, Lena Ebers, and Jens Förstner. “Resonant Evanescent Excitation of OAM Modes in a High-Contrast Circular Step-Index Fiber.” In <i>Complex Light and Optical Forces XVI</i>, edited by David L. Andrews, Enrique J. Galvez, and Halina Rubinsztein-Dunlop, 120170F. SPIE, 2022. <a href=\"https://doi.org/10.1117/12.2612179\">https://doi.org/10.1117/12.2612179</a>.","apa":"Hammer, M., Ebers, L., &#38; Förstner, J. (2022). Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber. In D. L. Andrews, E. J. Galvez, &#38; H. Rubinsztein-Dunlop (Eds.), <i>Complex Light and Optical Forces XVI</i> (p. 120170F). SPIE. <a href=\"https://doi.org/10.1117/12.2612179\">https://doi.org/10.1117/12.2612179</a>","ieee":"M. Hammer, L. Ebers, and J. Förstner, “Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber,” in <i>Complex Light and Optical Forces XVI</i>, 2022, p. 120170F, doi: <a href=\"https://doi.org/10.1117/12.2612179\">10.1117/12.2612179</a>."},"file_date_updated":"2022-03-22T18:03:50Z","editor":[{"last_name":"Andrews","first_name":"David L.","full_name":"Andrews, David L."},{"first_name":"Enrique J.","last_name":"Galvez","full_name":"Galvez, Enrique J."},{"full_name":"Rubinsztein-Dunlop, Halina","first_name":"Halina","last_name":"Rubinsztein-Dunlop"}],"user_id":"158","ddc":["530"],"publisher":"SPIE","_id":"30387","page":"120170F","has_accepted_license":"1","status":"public","department":[{"_id":"61"},{"_id":"230"},{"_id":"429"}],"type":"conference","keyword":["tet_topic_waveguide"],"date_created":"2022-03-21T10:12:58Z","file":[{"file_id":"30444","content_type":"application/pdf","relation":"main_file","date_updated":"2022-03-22T18:03:50Z","file_name":"2022-03 Hammer - SPIE Photonics West 2022 - Resonant evanescent excitation of OAM modes in a high-contrast circular (official version).pdf","file_size":2015899,"access_level":"open_access","date_created":"2022-03-22T18:03:50Z","creator":"fossie"}],"abstract":[{"text":"Resonant evanescent coupling can be utilized to selectively excite orbital angular momentum (OAM) modes of high angular order supported by a thin circular dielectric rod. Our 2.5-D hybrid-analytical coupled mode model combines the vectorial fields associated with the fundamental TE- and TM-modes of a standard silicon photonics slab waveguide, propagating at oblique angles with respect to the rod axis, and the hybrid modes supported by the rod. One observes an efficient resonant interaction in cases where the common axial wavenumber of the waves in the slab matches the propagation constant of one or more modes of the rod. For certain modes of high angular order, the incident wave is able to transfer its directionality to the field in the fiber, exciting effectively only one of a pair of degenerate OAM modes","lang":"eng"}],"publication":"Complex Light and Optical Forces XVI","doi":"10.1117/12.2612179","language":[{"iso":"eng"}],"publication_status":"published","date_updated":"2022-03-22T18:04:20Z","author":[{"orcid":"0000-0002-6331-9348","first_name":"Manfred","last_name":"Hammer","full_name":"Hammer, Manfred","id":"48077"},{"first_name":"Lena","last_name":"Ebers","full_name":"Ebers, Lena","id":"40428"},{"last_name":"Förstner","first_name":"Jens","orcid":"0000-0001-7059-9862","full_name":"Förstner, Jens","id":"158"}],"title":"Resonant evanescent excitation of OAM modes in a high-contrast circular step-index fiber","year":"2022"},{"user_id":"64394","main_file_link":[{"open_access":"1","url":"https://www.nordakademie.de/forschung/data-science-process-model"}],"publisher":"NORDAKADEMIE gAG Hochschule der Wirtschaft","_id":"30737","language":[{"iso":"ger"}],"publication_status":"published","date_updated":"2022-04-04T12:00:53Z","status":"public","title":"DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte","year":"2022","author":[{"full_name":"Schulz, Michael","last_name":"Schulz","first_name":"Michael"},{"first_name":"Uwe","last_name":"Neuhaus","full_name":"Neuhaus, Uwe"},{"full_name":"Kaufmann, Jens","first_name":"Jens","last_name":"Kaufmann"},{"first_name":"Stephan","last_name":"Kühnel","full_name":"Kühnel, Stephan"},{"last_name":"Alekozai","first_name":"Emal M.","full_name":"Alekozai, Emal M."},{"full_name":"Rohde, Heiko","last_name":"Rohde","first_name":"Heiko"},{"first_name":"Sayed","last_name":"Hoseini","full_name":"Hoseini, Sayed"},{"last_name":"Theuerkauf","first_name":"René","full_name":"Theuerkauf, René"},{"full_name":"Badura, Daniel","first_name":"Daniel","last_name":"Badura"},{"full_name":"Kerzel, Ulrich","last_name":"Kerzel","first_name":"Ulrich"},{"full_name":"Lanquillon, Carsten","last_name":"Lanquillon","first_name":"Carsten"},{"full_name":"Daurer, Stephan","first_name":"Stephan","last_name":"Daurer"},{"first_name":"Maik","last_name":"Günther","full_name":"Günther, Maik"},{"first_name":"Lukas","last_name":"Huber","full_name":"Huber, Lukas"},{"full_name":"Thiée, Lukas-Walter","first_name":"Lukas-Walter","last_name":"Thiée"},{"id":"64394","full_name":"zur Heiden, Philipp","last_name":"zur Heiden","first_name":"Philipp"},{"first_name":"Jens","last_name":"Passlick","full_name":"Passlick, Jens"},{"full_name":"Dieckmann, Jonas","first_name":"Jonas","last_name":"Dieckmann"},{"full_name":"Schwade, Florian","last_name":"Schwade","first_name":"Florian"},{"full_name":"Seyffarth, Tobias","first_name":"Tobias","last_name":"Seyffarth"},{"full_name":"Badewitz, Wolfgang","last_name":"Badewitz","first_name":"Wolfgang"},{"first_name":"Raphael","last_name":"Rissler","full_name":"Rissler, Raphael"},{"first_name":"Stefan","last_name":"Sackmann","full_name":"Sackmann, Stefan"},{"full_name":"Gölzer, Philipp","first_name":"Philipp","last_name":"Gölzer"},{"first_name":"Felix","last_name":"Welter","full_name":"Welter, Felix"},{"last_name":"Röth","first_name":"Jochen","full_name":"Röth, Jochen"},{"full_name":"Seidelmann, Julian","first_name":"Julian","last_name":"Seidelmann"},{"first_name":"Uwe","last_name":"Haneke","full_name":"Haneke, Uwe"}],"type":"misc","department":[{"_id":"195"}],"oa":"1","date_created":"2022-04-04T11:58:42Z","citation":{"ama":"Schulz M, Neuhaus U, Kaufmann J, et al. <i>DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte</i>. NORDAKADEMIE gAG Hochschule der Wirtschaft; 2022.","bibtex":"@book{Schulz_Neuhaus_Kaufmann_Kühnel_Alekozai_Rohde_Hoseini_Theuerkauf_Badura_Kerzel_et al._2022, title={DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte}, publisher={NORDAKADEMIE gAG Hochschule der Wirtschaft}, author={Schulz, Michael and Neuhaus, Uwe and Kaufmann, Jens and Kühnel, Stephan and Alekozai, Emal M. and Rohde, Heiko and Hoseini, Sayed and Theuerkauf, René and Badura, Daniel and Kerzel, Ulrich and et al.}, year={2022} }","mla":"Schulz, Michael, et al. <i>DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte</i>. NORDAKADEMIE gAG Hochschule der Wirtschaft, 2022.","chicago":"Schulz, Michael, Uwe Neuhaus, Jens Kaufmann, Stephan Kühnel, Emal M. Alekozai, Heiko Rohde, Sayed Hoseini, et al. <i>DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte</i>. NORDAKADEMIE gAG Hochschule der Wirtschaft, 2022.","short":"M. Schulz, U. Neuhaus, J. Kaufmann, S. Kühnel, E.M. Alekozai, H. Rohde, S. Hoseini, R. Theuerkauf, D. Badura, U. Kerzel, C. Lanquillon, S. Daurer, M. Günther, L. Huber, L.-W. Thiée, P. zur Heiden, J. Passlick, J. Dieckmann, F. Schwade, T. Seyffarth, W. Badewitz, R. Rissler, S. Sackmann, P. Gölzer, F. Welter, J. Röth, J. Seidelmann, U. Haneke, DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte, NORDAKADEMIE gAG Hochschule der Wirtschaft, 2022.","apa":"Schulz, M., Neuhaus, U., Kaufmann, J., Kühnel, S., Alekozai, E. M., Rohde, H., Hoseini, S., Theuerkauf, R., Badura, D., Kerzel, U., Lanquillon, C., Daurer, S., Günther, M., Huber, L., Thiée, L.-W., zur Heiden, P., Passlick, J., Dieckmann, J., Schwade, F., … Haneke, U. (2022). <i>DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte</i>. NORDAKADEMIE gAG Hochschule der Wirtschaft.","ieee":"M. Schulz <i>et al.</i>, <i>DASC-PM v1.1 - Ein Vorgehensmodell für Data-Science-Projekte</i>. NORDAKADEMIE gAG Hochschule der Wirtschaft, 2022."}},{"oa":"1","file_date_updated":"2022-04-19T15:06:49Z","citation":{"ama":"Block L. Coalition formation versus free riding in rent-seeking contests. <i>Quick And Easy Journal Title</i>. Published online 2022.","bibtex":"@article{Block_2022, title={Coalition formation versus free riding in rent-seeking contests}, journal={Quick And Easy Journal Title}, author={Block, Lukas}, year={2022} }","mla":"Block, Lukas. “Coalition Formation versus Free Riding in Rent-Seeking Contests.” <i>Quick And Easy Journal Title</i>, 2022.","chicago":"Block, Lukas. “Coalition Formation versus Free Riding in Rent-Seeking Contests.” <i>Quick And Easy Journal Title</i>, 2022.","short":"L. Block, Quick And Easy Journal Title (2022).","apa":"Block, L. (2022). Coalition formation versus free riding in rent-seeking contests. <i>Quick And Easy Journal Title</i>.","ieee":"L. Block, “Coalition formation versus free riding in rent-seeking contests,” <i>Quick And Easy Journal Title</i>, 2022."},"ddc":["330"],"user_id":"22527","_id":"30917","has_accepted_license":"1","status":"public","jel":["C71","D72","D74"],"keyword":["Group formation","Rent-seeking","Free riding"],"type":"journal_article","file":[{"file_size":270316,"access_level":"open_access","file_name":"Coalition formation versus free riding in rent-seeking contests.pdf","date_updated":"2022-04-19T15:06:49Z","relation":"main_file","content_type":"application/pdf","file_id":"30918","creator":"lblock","date_created":"2022-04-19T15:06:49Z"}],"date_created":"2022-04-19T15:06:55Z","abstract":[{"lang":"eng","text":"We study lobby group formation in a two-stage model where the players \u001crst form lobby\r\ngroups that then engage in a rent-seeking contest to in\u001duence the legislator. However, the\r\noutcome of the contest a\u001bects all players according to the ideological distance between the\r\nimplemented policy and the players' preferences. The players can either lobby by themselves,\r\nform a coalition of lobbyists or free ride. We \u001cnd that free coalition formation is reasonable\r\nif either players with moderate preferences face lobby groups with extreme preferences, or if\r\nthere are two opposing coalitions with an equal number of members. Otherwise, there are\r\nalways free riders among the players."}],"publication":"Quick And Easy Journal Title","language":[{"iso":"eng"}],"date_updated":"2022-04-19T15:09:44Z","article_type":"original","year":"2022","title":"Coalition formation versus free riding in rent-seeking contests","author":[{"id":"22527","full_name":"Block, Lukas","last_name":"Block","first_name":"Lukas"}]},{"file_date_updated":"2022-03-03T07:23:15Z","citation":{"mla":"Reineke Matsudo, Bernhard, et al. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” <i>Advanced Science</i>, vol. 9, no. 12, 2104508, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>.","bibtex":"@article{Reineke Matsudo_Sain_Carletti_Zhang_Gao_Angelis_Huang_Zentgraf_2022, title={Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces}, volume={9}, DOI={<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>}, number={122104508}, journal={Advanced Science}, publisher={Wiley}, author={Reineke Matsudo, Bernhard and Sain, Basudeb and Carletti, Luca and Zhang, Xue and Gao, Wenlong and Angelis, Costantino and Huang, Lingling and Zentgraf, Thomas}, year={2022} }","ama":"Reineke Matsudo B, Sain B, Carletti L, et al. Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. <i>Advanced Science</i>. 2022;9(12). doi:<a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>","ieee":"B. Reineke Matsudo <i>et al.</i>, “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces,” <i>Advanced Science</i>, vol. 9, no. 12, Art. no. 2104508, 2022, doi: <a href=\"https://doi.org/10.1002/advs.202104508\">10.1002/advs.202104508</a>.","apa":"Reineke Matsudo, B., Sain, B., Carletti, L., Zhang, X., Gao, W., Angelis, C., Huang, L., &#38; Zentgraf, T. (2022). Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces. <i>Advanced Science</i>, <i>9</i>(12), Article 2104508. <a href=\"https://doi.org/10.1002/advs.202104508\">https://doi.org/10.1002/advs.202104508</a>","short":"B. Reineke Matsudo, B. Sain, L. Carletti, X. Zhang, W. Gao, C. Angelis, L. Huang, T. Zentgraf, Advanced Science 9 (2022).","chicago":"Reineke Matsudo, Bernhard, Basudeb Sain, Luca Carletti, Xue Zhang, Wenlong Gao, Costantino Angelis, Lingling Huang, and Thomas Zentgraf. “Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces.” <i>Advanced Science</i> 9, no. 12 (2022). <a href=\"https://doi.org/10.1002/advs.202104508\">https://doi.org/10.1002/advs.202104508</a>."},"quality_controlled":"1","project":[{"_id":"53","name":"TRR 142: TRR 142"},{"name":"TRR 142 - C: TRR 142 - Project Area C","_id":"56"},{"name":"TRR 142 - C5: TRR 142 - Subproject C5","_id":"75"}],"oa":"1","status":"public","has_accepted_license":"1","publisher":"Wiley","_id":"29902","user_id":"30525","ddc":["530"],"volume":9,"publication":"Advanced Science","issue":"12","file":[{"file_id":"30196","content_type":"application/pdf","success":1,"relation":"main_file","date_updated":"2022-03-03T07:23:15Z","file_name":"2022_ACSPhotonics_NonlinearChiral_Arxiv.pdf","file_size":1001422,"access_level":"closed","date_created":"2022-03-03T07:23:15Z","creator":"zentgraf"}],"date_created":"2022-02-21T08:09:02Z","type":"journal_article","keyword":["General Physics and Astronomy","General Engineering","Biochemistry","Genetics and Molecular Biology (miscellaneous)","General Materials Science","General Chemical Engineering","Medicine (miscellaneous)"],"department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"year":"2022","title":"Efficient Frequency Conversion with Geometric Phase Control in Optical Metasurfaces","author":[{"first_name":"Bernhard","last_name":"Reineke Matsudo","full_name":"Reineke Matsudo, Bernhard"},{"last_name":"Sain","first_name":"Basudeb","full_name":"Sain, Basudeb"},{"full_name":"Carletti, Luca","first_name":"Luca","last_name":"Carletti"},{"full_name":"Zhang, Xue","first_name":"Xue","last_name":"Zhang"},{"first_name":"Wenlong","last_name":"Gao","full_name":"Gao, Wenlong"},{"first_name":"Costantino","last_name":"Angelis","full_name":"Angelis, Costantino"},{"first_name":"Lingling","last_name":"Huang","full_name":"Huang, Lingling"},{"last_name":"Zentgraf","orcid":"0000-0002-8662-1101","first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525"}],"publication_identifier":{"issn":["2198-3844","2198-3844"]},"publication_status":"published","date_updated":"2022-04-25T13:04:44Z","article_type":"original","intvolume":"         9","article_number":"2104508","main_file_link":[{"url":"https://doi.org/10.1002/advs.202104508","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1002/advs.202104508"},{"publication":"Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective","file_date_updated":"2022-04-26T07:27:39Z","citation":{"mla":"Yigitbas, Enes, et al. “Self-Adaptive Digital Assistance Systems for Work 4.0.” <i>Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective</i>, edited by Birgit Vogel-Heuser and Manuel Wimmer, Springer-Vieweg, 2022.","bibtex":"@inbook{Yigitbas_Sauer_Engels_2022, title={Self-Adaptive Digital Assistance Systems for Work 4.0}, booktitle={Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective}, publisher={Springer-Vieweg}, author={Yigitbas, Enes and Sauer, Stefan and Engels, Gregor}, editor={Vogel-Heuser, Birgit and Wimmer, Manuel}, year={2022} }","ama":"Yigitbas E, Sauer S, Engels G. Self-Adaptive Digital Assistance Systems for Work 4.0. In: Vogel-Heuser B, Wimmer M, eds. <i>Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective</i>. Springer-Vieweg; 2022.","ieee":"E. Yigitbas, S. Sauer, and G. Engels, “Self-Adaptive Digital Assistance Systems for Work 4.0,” in <i>Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective</i>, B. Vogel-Heuser and M. Wimmer, Eds. Springer-Vieweg, 2022.","apa":"Yigitbas, E., Sauer, S., &#38; Engels, G. (2022). Self-Adaptive Digital Assistance Systems for Work 4.0. In B. Vogel-Heuser &#38; M. Wimmer (Eds.), <i>Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective</i>. Springer-Vieweg.","short":"E. Yigitbas, S. Sauer, G. Engels, in: B. Vogel-Heuser, M. Wimmer (Eds.), Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective, Springer-Vieweg, 2022.","chicago":"Yigitbas, Enes, Stefan Sauer, and Gregor Engels. “Self-Adaptive Digital Assistance Systems for Work 4.0.” In <i>Digital Transformation: Core Technologies and Emerging Topics from a Computer Science Perspective</i>, edited by Birgit Vogel-Heuser and Manuel Wimmer. Springer-Vieweg, 2022."},"type":"book_chapter","oa":"1","department":[{"_id":"66"},{"_id":"534"}],"file":[{"file_id":"29929","content_type":"application/pdf","relation":"main_file","date_updated":"2022-04-26T07:27:39Z","file_name":"I4.0-YSE-Final.pdf","access_level":"open_access","file_size":1769270,"date_created":"2022-02-21T10:52:02Z","creator":"enes"}],"date_created":"2022-02-21T10:52:34Z","date_updated":"2022-04-26T07:27:40Z","has_accepted_license":"1","title":"Self-Adaptive Digital Assistance Systems for Work 4.0","year":"2022","status":"public","author":[{"id":"8447","orcid":"0000-0002-5967-833X","first_name":"Enes","last_name":"Yigitbas","full_name":"Yigitbas, Enes"},{"full_name":"Sauer, Stefan","first_name":"Stefan","last_name":"Sauer","id":"447"},{"id":"107","first_name":"Gregor","last_name":"Engels","full_name":"Engels, Gregor"}],"ddc":["006"],"user_id":"8447","editor":[{"full_name":"Vogel-Heuser, Birgit","first_name":"Birgit","last_name":"Vogel-Heuser"},{"last_name":"Wimmer","first_name":"Manuel","full_name":"Wimmer, Manuel"}],"language":[{"iso":"eng"}],"_id":"29928","publisher":"Springer-Vieweg"},{"oa":"1","quality_controlled":"1","citation":{"bibtex":"@article{Gao_Sain_Zentgraf_2022, title={Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces}, volume={17}, DOI={<a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">10.1103/physrevapplied.17.044022</a>}, number={4044022}, journal={Physical Review Applied}, publisher={American Physical Society (APS)}, author={Gao, Wenlong and Sain, Basudeb and Zentgraf, Thomas}, year={2022} }","ama":"Gao W, Sain B, Zentgraf T. Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces. <i>Physical Review Applied</i>. 2022;17(4). doi:<a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">10.1103/physrevapplied.17.044022</a>","mla":"Gao, Wenlong, et al. “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces.” <i>Physical Review Applied</i>, vol. 17, no. 4, 044022, American Physical Society (APS), 2022, doi:<a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">10.1103/physrevapplied.17.044022</a>.","short":"W. Gao, B. Sain, T. Zentgraf, Physical Review Applied 17 (2022).","chicago":"Gao, Wenlong, Basudeb Sain, and Thomas Zentgraf. “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces.” <i>Physical Review Applied</i> 17, no. 4 (2022). <a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">https://doi.org/10.1103/physrevapplied.17.044022</a>.","ieee":"W. Gao, B. Sain, and T. Zentgraf, “Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces,” <i>Physical Review Applied</i>, vol. 17, no. 4, Art. no. 044022, 2022, doi: <a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">10.1103/physrevapplied.17.044022</a>.","apa":"Gao, W., Sain, B., &#38; Zentgraf, T. (2022). Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces. <i>Physical Review Applied</i>, <i>17</i>(4), Article 044022. <a href=\"https://doi.org/10.1103/physrevapplied.17.044022\">https://doi.org/10.1103/physrevapplied.17.044022</a>"},"volume":17,"user_id":"30525","publisher":"American Physical Society (APS)","_id":"30964","status":"public","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"}],"keyword":["General Physics and Astronomy"],"type":"journal_article","date_created":"2022-04-27T11:07:03Z","issue":"4","publication":"Physical Review Applied","doi":"10.1103/physrevapplied.17.044022","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://doi.org/10.48550/arXiv.2202.11980","open_access":"1"}],"article_number":"044022","intvolume":"        17","article_type":"letter_note","date_updated":"2022-04-27T11:09:11Z","publication_status":"published","author":[{"full_name":"Gao, Wenlong","last_name":"Gao","first_name":"Wenlong"},{"full_name":"Sain, Basudeb","last_name":"Sain","first_name":"Basudeb"},{"orcid":"0000-0002-8662-1101","last_name":"Zentgraf","first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525"}],"publication_identifier":{"issn":["2331-7019"]},"year":"2022","title":"Spin-Orbit Interaction of Light Enabled by Negative Coupling in High-Quality-Factor Optical Metasurfaces"},{"abstract":[{"lang":"eng","text":"We study output reference tracking of systems with high relative degree via output feedback only; this is, tracking where the output derivatives are unknown.\r\nTo this end, we prove that the conjunction of the funnel pre-compensator with a minimum phase system of arbitrary relative degree yields a system of the same relative degree which is minimum phase as well. \r\nThe error between the original system's output and the pre-compensator's output evolves within a prescribed performance funnel; and moreover, the derivatives of the funnel pre-compensator's output are known explicitly. \r\nTherefore, output reference tracking with prescribed transient behavior of the tracking error is possible without knowledge of the derivatives of the original system's output; via funnel control schemes for instance."}],"publication":"Mathematics of Control, Signals, and Systems","citation":{"chicago":"Lanza, Lukas Johannes. “Output Feedback Control with Prescribed Performance via Funnel Pre-Compensator.” <i>Mathematics of Control, Signals, and Systems</i>, 2022. <a href=\"https://doi.org/10.1007/s00498-022-00322-5\">https://doi.org/10.1007/s00498-022-00322-5</a>.","short":"L.J. Lanza, Mathematics of Control, Signals, and Systems (2022).","ama":"Lanza LJ. Output feedback control with prescribed performance via funnel pre-compensator. <i>Mathematics of Control, Signals, and Systems</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1007/s00498-022-00322-5\">10.1007/s00498-022-00322-5</a>","bibtex":"@article{Lanza_2022, title={Output feedback control with prescribed performance via funnel pre-compensator}, DOI={<a href=\"https://doi.org/10.1007/s00498-022-00322-5\">10.1007/s00498-022-00322-5</a>}, journal={Mathematics of Control, Signals, and Systems}, author={Lanza, Lukas Johannes}, year={2022} }","apa":"Lanza, L. J. (2022). Output feedback control with prescribed performance via funnel pre-compensator. <i>Mathematics of Control, Signals, and Systems</i>. <a href=\"https://doi.org/10.1007/s00498-022-00322-5\">https://doi.org/10.1007/s00498-022-00322-5</a>","mla":"Lanza, Lukas Johannes. “Output Feedback Control with Prescribed Performance via Funnel Pre-Compensator.” <i>Mathematics of Control, Signals, and Systems</i>, 2022, doi:<a href=\"https://doi.org/10.1007/s00498-022-00322-5\">10.1007/s00498-022-00322-5</a>.","ieee":"L. J. Lanza, “Output feedback control with prescribed performance via funnel pre-compensator,” <i>Mathematics of Control, Signals, and Systems</i>, 2022, doi: <a href=\"https://doi.org/10.1007/s00498-022-00322-5\">10.1007/s00498-022-00322-5</a>."},"type":"journal_article","oa":"1","date_created":"2021-08-15T09:43:21Z","publication_status":"published","date_updated":"2022-04-28T06:14:25Z","article_type":"original","has_accepted_license":"1","title":"Output feedback control with prescribed performance via funnel pre-compensator","status":"public","year":"2022","author":[{"last_name":"Lanza","first_name":"Lukas Johannes","full_name":"Lanza, Lukas Johannes","id":"78640"}],"user_id":"78640","doi":"10.1007/s00498-022-00322-5","ddc":["510"],"main_file_link":[{"open_access":"1"}],"_id":"23398","language":[{"iso":"eng"}]},{"publication_status":"published","date_updated":"2022-06-27T09:34:46Z","title":"A review of 100% renewable energy scenarios on islands","year":"2022","status":"public","publication_identifier":{"issn":["2041-8396","2041-840X"]},"author":[{"full_name":"Meschede, Henning","first_name":"Henning","last_name":"Meschede","id":"86954"},{"full_name":"Bertheau, Paul","last_name":"Bertheau","first_name":"Paul"},{"full_name":"Khalili, Siavash","last_name":"Khalili","first_name":"Siavash"},{"full_name":"Breyer, Christian","first_name":"Christian","last_name":"Breyer"}],"user_id":"86954","doi":"10.1002/wene.450","main_file_link":[{"url":"https://wires.onlinelibrary.wiley.com/doi/epdf/10.1002/wene.450","open_access":"1"}],"_id":"32180","publisher":"Wiley","language":[{"iso":"eng"}],"publication":"WIREs Energy and Environment","citation":{"chicago":"Meschede, Henning, Paul Bertheau, Siavash Khalili, and Christian Breyer. “A Review of 100% Renewable Energy Scenarios on Islands.” <i>WIREs Energy and Environment</i>, 2022. <a href=\"https://doi.org/10.1002/wene.450\">https://doi.org/10.1002/wene.450</a>.","short":"H. Meschede, P. Bertheau, S. Khalili, C. Breyer, WIREs Energy and Environment (2022).","ama":"Meschede H, Bertheau P, Khalili S, Breyer C. A review of 100% renewable energy scenarios on islands. <i>WIREs Energy and Environment</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1002/wene.450\">10.1002/wene.450</a>","bibtex":"@article{Meschede_Bertheau_Khalili_Breyer_2022, title={A review of 100% renewable energy scenarios on islands}, DOI={<a href=\"https://doi.org/10.1002/wene.450\">10.1002/wene.450</a>}, journal={WIREs Energy and Environment}, publisher={Wiley}, author={Meschede, Henning and Bertheau, Paul and Khalili, Siavash and Breyer, Christian}, year={2022} }","apa":"Meschede, H., Bertheau, P., Khalili, S., &#38; Breyer, C. (2022). A review of 100% renewable energy scenarios on islands. <i>WIREs Energy and Environment</i>. <a href=\"https://doi.org/10.1002/wene.450\">https://doi.org/10.1002/wene.450</a>","mla":"Meschede, Henning, et al. “A Review of 100% Renewable Energy Scenarios on Islands.” <i>WIREs Energy and Environment</i>, Wiley, 2022, doi:<a href=\"https://doi.org/10.1002/wene.450\">10.1002/wene.450</a>.","ieee":"H. Meschede, P. Bertheau, S. Khalili, and C. Breyer, “A review of 100% renewable energy scenarios on islands,” <i>WIREs Energy and Environment</i>, 2022, doi: <a href=\"https://doi.org/10.1002/wene.450\">10.1002/wene.450</a>."},"type":"journal_article","keyword":["General Environmental Science","Renewable Energy","Sustainability and the Environment"],"oa":"1","date_created":"2022-06-27T09:32:06Z"},{"language":[{"iso":"eng"}],"doi":"10.1109/ICSA-C54293.2022.00011","year":"2022","title":"Model-driven Continuous Experimentation on Component-based Software Architectures ","author":[{"id":"47208","first_name":"Sebastian","last_name":"Gottschalk","full_name":"Gottschalk, Sebastian"},{"full_name":"Yigitbas, Enes","last_name":"Yigitbas","orcid":"0000-0002-5967-833X","first_name":"Enes","id":"8447"},{"id":"107","last_name":"Engels","first_name":"Gregor","full_name":"Engels, Gregor"}],"date_updated":"2022-07-04T12:34:53Z","file":[{"access_level":"open_access","file_size":183185,"file_name":"ICSA_CR.pdf","date_updated":"2022-07-04T12:34:52Z","relation":"main_file","content_type":"application/pdf","file_id":"32322","creator":"sego","date_created":"2022-07-04T12:33:18Z"}],"date_created":"2022-02-15T07:32:10Z","type":"conference","keyword":["continuous experimentation","model-driven","component-based software architectures","self-adaptation"],"department":[{"_id":"66"},{"_id":"534"}],"publication":"Proceedings of the 18th International Conference on Software Architecture Companion ","abstract":[{"text":"To build successful software products, developers continuously have to discover what features the users really need. This discovery can be achieved with continuous experimentation, testing different software variants with distinct user groups, and deploying the superior variant for all users. However, existing approaches do not focus on explicit modeling of variants and experiments, which offers advantages such as traceability of decisions and combinability of experiments. Therefore, our vision is the provision of model-driven continuous experimentation, which provides the developer with a framework for structuring the experimentation process. For that, we introduce the overall concept, apply it to the experimentation on component-based software architectures and point out future research questions. In particular, we show the applicability by combining feature models for modeling the software variants, users, and experiments (i.e., model-driven) with MAPE-K for the adaptation (i.e., continuous experimentation) and implementing the concept based on the component-based Angular framework.","lang":"eng"}],"publisher":"IEEE","_id":"29842","ddc":["000"],"user_id":"47208","status":"public","conference":{"end_date":"2022-03-15","location":"Hawaii","start_date":"2022-03-12","name":"18th International Conference on Software Architecture "},"has_accepted_license":"1","oa":"1","file_date_updated":"2022-07-04T12:34:52Z","citation":{"short":"S. Gottschalk, E. Yigitbas, G. Engels, in: Proceedings of the 18th International Conference on Software Architecture Companion , IEEE, 2022.","chicago":"Gottschalk, Sebastian, Enes Yigitbas, and Gregor Engels. “Model-Driven Continuous Experimentation on Component-Based Software Architectures .” In <i>Proceedings of the 18th International Conference on Software Architecture Companion </i>. IEEE, 2022. <a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">https://doi.org/10.1109/ICSA-C54293.2022.00011</a>.","apa":"Gottschalk, S., Yigitbas, E., &#38; Engels, G. (2022). Model-driven Continuous Experimentation on Component-based Software Architectures . <i>Proceedings of the 18th International Conference on Software Architecture Companion </i>. 18th International Conference on Software Architecture , Hawaii. <a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">https://doi.org/10.1109/ICSA-C54293.2022.00011</a>","ieee":"S. Gottschalk, E. Yigitbas, and G. Engels, “Model-driven Continuous Experimentation on Component-based Software Architectures ,” presented at the 18th International Conference on Software Architecture , Hawaii, 2022, doi: <a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">10.1109/ICSA-C54293.2022.00011</a>.","ama":"Gottschalk S, Yigitbas E, Engels G. Model-driven Continuous Experimentation on Component-based Software Architectures . In: <i>Proceedings of the 18th International Conference on Software Architecture Companion </i>. IEEE; 2022. doi:<a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">10.1109/ICSA-C54293.2022.00011</a>","bibtex":"@inproceedings{Gottschalk_Yigitbas_Engels_2022, title={Model-driven Continuous Experimentation on Component-based Software Architectures }, DOI={<a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">10.1109/ICSA-C54293.2022.00011</a>}, booktitle={Proceedings of the 18th International Conference on Software Architecture Companion }, publisher={IEEE}, author={Gottschalk, Sebastian and Yigitbas, Enes and Engels, Gregor}, year={2022} }","mla":"Gottschalk, Sebastian, et al. “Model-Driven Continuous Experimentation on Component-Based Software Architectures .” <i>Proceedings of the 18th International Conference on Software Architecture Companion </i>, IEEE, 2022, doi:<a href=\"https://doi.org/10.1109/ICSA-C54293.2022.00011\">10.1109/ICSA-C54293.2022.00011</a>."},"project":[{"_id":"1","name":"SFB 901: SFB 901"},{"name":"SFB 901 - C: SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - C5: SFB 901 - Subproject C5","_id":"17"}]},{"external_id":{"arxiv":["2201.12062"]},"oa":"1","citation":{"bibtex":"@article{Klus_Nüske_Peitz_2022, title={Koopman analysis of quantum systems}, volume={55}, DOI={<a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">10.1088/1751-8121/ac7d22</a>}, number={31}, journal={Journal of Physics A: Mathematical and Theoretical}, publisher={IOP Publishing Ltd.}, author={Klus, Stefan and Nüske, Feliks and Peitz, Sebastian}, year={2022}, pages={314002} }","ama":"Klus S, Nüske F, Peitz S. Koopman analysis of quantum systems. <i>Journal of Physics A: Mathematical and Theoretical</i>. 2022;55(31):314002. doi:<a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">10.1088/1751-8121/ac7d22</a>","mla":"Klus, Stefan, et al. “Koopman Analysis of Quantum Systems.” <i>Journal of Physics A: Mathematical and Theoretical</i>, vol. 55, no. 31, IOP Publishing Ltd., 2022, p. 314002, doi:<a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">10.1088/1751-8121/ac7d22</a>.","chicago":"Klus, Stefan, Feliks Nüske, and Sebastian Peitz. “Koopman Analysis of Quantum Systems.” <i>Journal of Physics A: Mathematical and Theoretical</i> 55, no. 31 (2022): 314002. <a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">https://doi.org/10.1088/1751-8121/ac7d22</a>.","short":"S. Klus, F. Nüske, S. Peitz, Journal of Physics A: Mathematical and Theoretical 55 (2022) 314002.","ieee":"S. Klus, F. Nüske, and S. Peitz, “Koopman analysis of quantum systems,” <i>Journal of Physics A: Mathematical and Theoretical</i>, vol. 55, no. 31, p. 314002, 2022, doi: <a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">10.1088/1751-8121/ac7d22</a>.","apa":"Klus, S., Nüske, F., &#38; Peitz, S. (2022). Koopman analysis of quantum systems. <i>Journal of Physics A: Mathematical and Theoretical</i>, <i>55</i>(31), 314002. <a href=\"https://doi.org/10.1088/1751-8121/ac7d22\">https://doi.org/10.1088/1751-8121/ac7d22</a>"},"page":"314002","publisher":"IOP Publishing Ltd.","_id":"29673","user_id":"47427","volume":55,"status":"public","date_created":"2022-01-31T09:49:40Z","type":"journal_article","department":[{"_id":"655"},{"_id":"101"}],"publication":"Journal of Physics A: Mathematical and Theoretical","issue":"31","abstract":[{"text":"Koopman operator theory has been successfully applied to problems from various research areas such as fluid dynamics, molecular dynamics, climate science, engineering, and biology. Applications include detecting metastable or coherent sets, coarse-graining, system identification, and control. There is an intricate connection between dynamical systems driven by stochastic differential equations and quantum mechanics. In this paper, we compare the ground-state transformation and Nelson's stochastic mechanics and demonstrate how data-driven methods developed for the approximation of the Koopman operator can be used to analyze quantum physics problems. Moreover, we exploit the relationship between Schrödinger operators and stochastic control problems to show that modern data-driven methods for stochastic control can be used to solve the stationary or imaginary-time Schrödinger equation. Our findings open up a new avenue towards solving Schrödinger's equation using recently developed tools from data science.","lang":"eng"}],"main_file_link":[{"url":"https://iopscience.iop.org/article/10.1088/1751-8121/ac7d22/pdf","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1088/1751-8121/ac7d22","year":"2022","title":"Koopman analysis of quantum systems","author":[{"first_name":"Stefan","last_name":"Klus","full_name":"Klus, Stefan"},{"full_name":"Nüske, Feliks","orcid":"0000-0003-2444-7889","last_name":"Nüske","first_name":"Feliks","id":"81513"},{"full_name":"Peitz, Sebastian","first_name":"Sebastian","orcid":"0000-0002-3389-793X","last_name":"Peitz","id":"47427"}],"publication_status":"published","date_updated":"2022-07-18T14:26:41Z","intvolume":"        55"},{"quality_controlled":"1","citation":{"mla":"Steinhardt, Isabel, and Felicitas Kruschick. “Knowledge Equity and Open Science in Qualitative Research – Practical Research Considerations.” <i>Research Ideas and Outcomes</i>, vol. 8, Pensoft Publishers, 2022, doi:<a href=\"https://doi.org/10.3897/rio.8.e86387\">10.3897/rio.8.e86387</a>.","ama":"Steinhardt I, Kruschick F. Knowledge Equity and Open Science in qualitative research – Practical research considerations. <i>Research Ideas and Outcomes</i>. 2022;8. doi:<a href=\"https://doi.org/10.3897/rio.8.e86387\">10.3897/rio.8.e86387</a>","bibtex":"@article{Steinhardt_Kruschick_2022, title={Knowledge Equity and Open Science in qualitative research – Practical research considerations}, volume={8}, DOI={<a href=\"https://doi.org/10.3897/rio.8.e86387\">10.3897/rio.8.e86387</a>}, journal={Research Ideas and Outcomes}, publisher={Pensoft Publishers}, author={Steinhardt, Isabel and Kruschick, Felicitas}, year={2022} }","apa":"Steinhardt, I., &#38; Kruschick, F. (2022). Knowledge Equity and Open Science in qualitative research – Practical research considerations. <i>Research Ideas and Outcomes</i>, <i>8</i>. <a href=\"https://doi.org/10.3897/rio.8.e86387\">https://doi.org/10.3897/rio.8.e86387</a>","ieee":"I. Steinhardt and F. Kruschick, “Knowledge Equity and Open Science in qualitative research – Practical research considerations,” <i>Research Ideas and Outcomes</i>, vol. 8, 2022, doi: <a href=\"https://doi.org/10.3897/rio.8.e86387\">10.3897/rio.8.e86387</a>.","short":"I. Steinhardt, F. Kruschick, Research Ideas and Outcomes 8 (2022).","chicago":"Steinhardt, Isabel, and Felicitas Kruschick. “Knowledge Equity and Open Science in Qualitative Research – Practical Research Considerations.” <i>Research Ideas and Outcomes</i> 8 (2022). <a href=\"https://doi.org/10.3897/rio.8.e86387\">https://doi.org/10.3897/rio.8.e86387</a>."},"oa":"1","status":"public","volume":8,"user_id":"90339","publisher":"Pensoft Publishers","_id":"34132","abstract":[{"text":"<jats:p>How can Knowledge In/Equity be addressed in qualitative research by taking the idea of Open Science into account? Two projects from the Open Science Fellows Programme by Wikimedia Deutschland will be used to illustrate how Open Science practices can succeed in qualitative research, thereby reducing In/Equity. In this context, In/Equity is considered as a fair and equal representation of people, their knowledge and insights and comprehends questions about how epistemic, structural, institutional and personal biases generate and shape knowledge as guidance. Three questions guide this approach: firstly, what do we understand by In/Equity in the context of knowledge production in these projects? Secondly, who will be involved in knowledge generation and to what extent will they be valued or unvalued? Thirdly, how can data be made accessible for re-use to enable true participation and sharing?</jats:p>","lang":"eng"}],"publication":"Research Ideas and Outcomes","department":[{"_id":"477"}],"type":"journal_article","keyword":["Open Science","Knowledge Equity","Qualitative Methods"],"date_created":"2022-11-22T15:55:11Z","intvolume":"         8","article_type":"original","date_updated":"2022-11-22T16:05:00Z","publication_status":"published","publication_identifier":{"issn":["2367-7163"]},"author":[{"full_name":"Steinhardt, Isabel","last_name":"Steinhardt","first_name":"Isabel"},{"last_name":"Kruschick","first_name":"Felicitas","full_name":"Kruschick, Felicitas"}],"year":"2022","title":"Knowledge Equity and Open Science in qualitative research – Practical research considerations","doi":"10.3897/rio.8.e86387","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}]},{"main_file_link":[{"url":"\turn:nbn:de:hbz:466:2-40303","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.17619/UNIPB/1-1271","title":"Hardware Trojans in Reconfigurable Computing","year":"2022","author":[{"full_name":"Ahmed, Qazi Arbab","orcid":"0000-0002-1837-2254","first_name":"Qazi Arbab","last_name":"Ahmed","id":"72764"}],"publication_status":"published","date_updated":"2022-11-30T13:39:01Z","date_created":"2022-02-07T14:02:36Z","type":"dissertation","keyword":["FPGA Security","Hardware Trojans","Bitstream-level Trojans","Bitstream Verification"],"department":[{"_id":"78"}],"abstract":[{"lang":"eng","text":"Wettstreit zwischen der Entwicklung neuer Hardwaretrojaner und entsprechender Gegenmaßnahmen beschreiten Widersacher immer raffiniertere Wege um Schaltungsentwürfe zu infizieren und dabei selbst fortgeschrittene Test- und Verifikationsmethoden zu überlisten. Abgesehen von den konventionellen Methoden um einen Trojaner in eine Schaltung für ein Field-programmable Gate Array (FPGA) einzuschleusen, können auch die Entwurfswerkzeuge heimlich kompromittiert werden um einen Angreifer dabei zu unterstützen einen erfolgreichen Angriff durchzuführen, der zum Beispiel Fehlfunktionen oder ungewollte Informationsabflüsse bewirken kann. Diese Dissertation beschäftigt sich hauptsächlich mit den beiden Blickwinkeln auf Hardwaretrojaner in rekonfigurierbaren Systemen, einerseits der Perspektive des Verteidigers mit einer Methode zur Erkennung von Trojanern auf der Bitstromebene, und andererseits derjenigen des Angreifers mit einer neuartigen Angriffsmethode für FPGA Trojaner. Für die Verteidigung gegen den Trojaner ``Heimtückische LUT'' stellen wir die allererste erfolgreiche Gegenmaßnahme vor, die durch Verifikation mittels Proof-carrying Hardware (PCH) auf der Bitstromebene direkt vor der Konfiguration der Hardware angewendet werden kann, und präsentieren ein vollständiges Schema für den Entwurf und die Verifikation von Schaltungen für iCE40 FPGAs. Für die Gegenseite führen wir einen neuen Angriff ein, welcher bösartiges Routing im eingefügten Trojaner ausnutzt um selbst im fertigen Bitstrom in einem inaktiven Zustand zu verbleiben: Hierdurch kann dieser neuartige Angriff zur Zeit weder von herkömmlichen Test- und Verifikationsmethoden, noch von unserer vorher vorgestellten Verifikation auf der Bitstromebene entdeckt werden."},{"lang":"eng","text":"The battle of developing hardware Trojans and corresponding countermeasures has taken adversaries towards ingenious ways of compromising hardware designs by circumventing even advanced testing and verification methods. Besides conventional methods of inserting Trojans into a design by a malicious entity, the design flow for field-programmable gate arrays (FPGAs) can also be surreptitiously compromised to assist the attacker to perform a successful malfunctioning or information leakage attack. This thesis mainly focuses on the two aspects of hardware Trojans in reconfigurable systems, the defenders perspective which corresponds to the bitstream-level Trojan detection technique, and the attackers perspective which corresponds to a novel FPGA Trojan attack. From the defender's perspective, we introduce a first-ever successful pre-configuration countermeasure against the ``Malicious LUT''-hardware Trojan, by employing bitstream-level Proof-Carrying Hardware (PCH) and present the complete design-and-verification flow for iCE40 FPGAs. Likewise, from an attackers perspective, we present a novel attack that leverages malicious routing of the inserted Trojan circuit to acquire a dormant state even in the generated and transmitted bitstream. Since the Trojan is injected in a post-synthesis step and remains unconnected in the bitstream, the presented attack can currently neither be prevented by conventional testing and verification methods nor by bitstream-level verification techniques."}],"publisher":" Paderborn University, Paderborn, Germany","_id":"29769","user_id":"477","ddc":["004"],"status":"public","has_accepted_license":"1","place":"Paderborn","oa":"1","citation":{"mla":"Ahmed, Qazi Arbab. <i>Hardware Trojans in Reconfigurable Computing</i>.  Paderborn University, Paderborn, Germany, 2022, doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1271\">10.17619/UNIPB/1-1271</a>.","bibtex":"@book{Ahmed_2022, place={Paderborn}, title={Hardware Trojans in Reconfigurable Computing}, DOI={<a href=\"https://doi.org/10.17619/UNIPB/1-1271\">10.17619/UNIPB/1-1271</a>}, publisher={ Paderborn University, Paderborn, Germany}, author={Ahmed, Qazi Arbab}, year={2022} }","ama":"Ahmed QA. <i>Hardware Trojans in Reconfigurable Computing</i>.  Paderborn University, Paderborn, Germany; 2022. doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1271\">10.17619/UNIPB/1-1271</a>","ieee":"Q. A. Ahmed, <i>Hardware Trojans in Reconfigurable Computing</i>. Paderborn:  Paderborn University, Paderborn, Germany, 2022.","apa":"Ahmed, Q. A. (2022). <i>Hardware Trojans in Reconfigurable Computing</i>.  Paderborn University, Paderborn, Germany. <a href=\"https://doi.org/10.17619/UNIPB/1-1271\">https://doi.org/10.17619/UNIPB/1-1271</a>","chicago":"Ahmed, Qazi Arbab. <i>Hardware Trojans in Reconfigurable Computing</i>. Paderborn:  Paderborn University, Paderborn, Germany, 2022. <a href=\"https://doi.org/10.17619/UNIPB/1-1271\">https://doi.org/10.17619/UNIPB/1-1271</a>.","short":"Q.A. Ahmed, Hardware Trojans in Reconfigurable Computing,  Paderborn University, Paderborn, Germany, Paderborn, 2022."},"supervisor":[{"full_name":"Platzner, Marco","first_name":"Marco","last_name":"Platzner","id":"398"}],"project":[{"name":"SFB 901: SFB 901","_id":"1"},{"name":"SFB 901 - C: SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - C2: SFB 901 - Subproject C2","_id":"14"}]},{"date_created":"2022-10-11T07:27:51Z","file":[{"date_created":"2022-10-11T07:23:13Z","creator":"huesera","content_type":"application/pdf","file_id":"33674","date_updated":"2022-10-11T07:23:13Z","relation":"main_file","file_size":6167931,"access_level":"open_access","file_name":"End-to-End_Dereverberation_Beamforming_and_Speech_Recognition_in_A_Cocktail_Party.pdf"}],"department":[{"_id":"54"}],"type":"journal_article","publication":"IEEE/ACM Transactions on Audio, Speech, and Language Processing","abstract":[{"text":"Far-field multi-speaker automatic speech recognition (ASR) has drawn increasing attention in recent years. Most existing methods feature a signal processing frontend and an ASR backend. In realistic scenarios, these modules are usually trained separately or progressively, which suffers from either inter-module mismatch or a complicated training process. In this paper, we propose an end-to-end multi-channel model that jointly optimizes the speech enhancement (including speech dereverberation, denoising, and separation) frontend and the ASR backend as a single system. To the best of our knowledge, this is the first work that proposes to optimize dereverberation, beamforming, and multi-speaker ASR in a fully end-to-end manner. The frontend module consists of a weighted prediction error (WPE) based submodule for dereverberation and a neural beamformer for denoising and speech separation. For the backend, we adopt a widely used end-to-end (E2E) ASR architecture. It is worth noting that the entire model is differentiable and can be optimized in a fully end-to-end manner using only the ASR criterion, without the need of parallel signal-level labels. We evaluate the proposed model on several multi-speaker benchmark datasets, and experimental results show that the fully E2E ASR model can achieve competitive performance on both noisy and reverberant conditions, with over 30% relative word error rate (WER) reduction over the single-channel baseline systems.","lang":"eng"}],"related_material":{"link":[{"url":"https://ieeexplore.ieee.org/abstract/document/9904314","relation":"confirmation"}]},"language":[{"iso":"eng"}],"doi":"10.1109/TASLP.2022.3209942","publication_identifier":{"issn":["Print ISSN: 2329-9290 Electronic ISSN: 2329-9304"]},"author":[{"full_name":"Zhang, Wangyou","first_name":"Wangyou","last_name":"Zhang"},{"first_name":"Xuankai","last_name":"Chang","full_name":"Chang, Xuankai"},{"full_name":"Boeddeker, Christoph","first_name":"Christoph","last_name":"Boeddeker","id":"40767"},{"first_name":"Tomohiro","last_name":"Nakatani","full_name":"Nakatani, Tomohiro"},{"first_name":"Shinji","last_name":"Watanabe","full_name":"Watanabe, Shinji"},{"last_name":"Qian","first_name":"Yanmin","full_name":"Qian, Yanmin"}],"year":"2022","title":"End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party","publication_status":"published","date_updated":"2022-12-05T12:35:31Z","oa":"1","citation":{"chicago":"Zhang, Wangyou, Xuankai Chang, Christoph Boeddeker, Tomohiro Nakatani, Shinji Watanabe, and Yanmin Qian. “End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party.” <i>IEEE/ACM Transactions on Audio, Speech, and Language Processing</i>, 2022. <a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">https://doi.org/10.1109/TASLP.2022.3209942</a>.","short":"W. Zhang, X. Chang, C. Boeddeker, T. Nakatani, S. Watanabe, Y. Qian, IEEE/ACM Transactions on Audio, Speech, and Language Processing (2022).","ieee":"W. Zhang, X. Chang, C. Boeddeker, T. Nakatani, S. Watanabe, and Y. Qian, “End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party,” <i>IEEE/ACM Transactions on Audio, Speech, and Language Processing</i>, 2022, doi: <a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">10.1109/TASLP.2022.3209942</a>.","apa":"Zhang, W., Chang, X., Boeddeker, C., Nakatani, T., Watanabe, S., &#38; Qian, Y. (2022). End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party. <i>IEEE/ACM Transactions on Audio, Speech, and Language Processing</i>. <a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">https://doi.org/10.1109/TASLP.2022.3209942</a>","bibtex":"@article{Zhang_Chang_Boeddeker_Nakatani_Watanabe_Qian_2022, title={End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party}, DOI={<a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">10.1109/TASLP.2022.3209942</a>}, journal={IEEE/ACM Transactions on Audio, Speech, and Language Processing}, author={Zhang, Wangyou and Chang, Xuankai and Boeddeker, Christoph and Nakatani, Tomohiro and Watanabe, Shinji and Qian, Yanmin}, year={2022} }","ama":"Zhang W, Chang X, Boeddeker C, Nakatani T, Watanabe S, Qian Y. End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party. <i>IEEE/ACM Transactions on Audio, Speech, and Language Processing</i>. Published online 2022. doi:<a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">10.1109/TASLP.2022.3209942</a>","mla":"Zhang, Wangyou, et al. “End-to-End Dereverberation, Beamforming, and Speech Recognition in A Cocktail Party.” <i>IEEE/ACM Transactions on Audio, Speech, and Language Processing</i>, 2022, doi:<a href=\"https://doi.org/10.1109/TASLP.2022.3209942\">10.1109/TASLP.2022.3209942</a>."},"file_date_updated":"2022-10-11T07:23:13Z","_id":"33669","user_id":"40767","ddc":["000"],"status":"public","has_accepted_license":"1"},{"publication":"die hochschullehre","citation":{"chicago":"Bloh, Thiemo, and Carina Caruso. “Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.” <i>die hochschullehre</i> 8 (2022). <a href=\"https://doi.org/10.3278/HSL2221W\">https://doi.org/10.3278/HSL2221W</a>.","short":"T. Bloh, C. Caruso, die hochschullehre 8 (2022).","ieee":"T. Bloh and C. Caruso, “Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.,” <i>die hochschullehre</i>, vol. 8, 2022, doi: <a href=\"https://doi.org/10.3278/HSL2221W\">10.3278/HSL2221W</a>.","apa":"Bloh, T., &#38; Caruso, C. (2022). Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen. <i>die hochschullehre</i>, <i>8</i>. <a href=\"https://doi.org/10.3278/HSL2221W\">https://doi.org/10.3278/HSL2221W</a>","bibtex":"@article{Bloh_Caruso_2022, title={Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.}, volume={8}, DOI={<a href=\"https://doi.org/10.3278/HSL2221W\">10.3278/HSL2221W</a>}, journal={die hochschullehre}, author={Bloh, Thiemo and Caruso, Carina}, year={2022} }","ama":"Bloh T, Caruso C. Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen. <i>die hochschullehre</i>. 2022;8. doi:<a href=\"https://doi.org/10.3278/HSL2221W\">10.3278/HSL2221W</a>","mla":"Bloh, Thiemo, and Carina Caruso. “Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.” <i>die hochschullehre</i>, vol. 8, 2022, doi:<a href=\"https://doi.org/10.3278/HSL2221W\">10.3278/HSL2221W</a>."},"quality_controlled":"1","date_created":"2022-12-05T13:23:42Z","type":"journal_article","oa":"1","department":[{"_id":"4"}],"status":"public","title":"Ein kritisch-multiperspektivischer Blick auf Forschendes Lernen in der Lehrkräftebildung. Fragen, Erwägungen und Rekonstruktionen.","year":"2022","author":[{"id":"69383","full_name":"Bloh, Thiemo","first_name":"Thiemo","orcid":"0000-0002-2215-2924","last_name":"Bloh"},{"first_name":"Carina","last_name":"Caruso","full_name":"Caruso, Carina"}],"date_updated":"2022-12-05T13:26:41Z","publication_status":"published","intvolume":"         8","main_file_link":[{"url":"https://www.wbv.de/shop/Ein-kritisch-multiperspektivischer-Blick-auf-Forschendes-Lernen-in-der-Lehrkraeftebildung-HSL2221W","open_access":"1"}],"language":[{"iso":"ger"}],"_id":"34198","doi":"10.3278/HSL2221W","user_id":"69383","volume":8},{"abstract":[{"text":"Das Ultraschall-Dickdrahtbonden mit Aluminiumdraht ist ein Standardverfahren zur elektrischenKontaktierung von Leistungshalbleitermodulen. Die steigenden Anforderungen an die Effizienzund Zuverlässigkeit der Module haben zu technologischen Weiterentwicklungen geführt und eswerden vermehrt Kupferdrähte mit wesentlich besseren elektrischen und thermischen Eigenschafteneingesetzt. Hieraus resultieren durch höhere Prozesskräfte und Ultraschallleistung neueHerausforderungen bei der Prozessentwicklung; hierfür wird ein Simulationsmodell zur Verbesserungder Prozessentwicklung entwickelt.In Ultraschall-Drahtbondversuchen mit 400 m Aluminium und Kupfer Drähten wurde der Einflussder Prozessparameter auf die Bondqualität untersucht; diese Ergebnisse und zusätzliche Messungender Drahtdeformation und Schwingungen wurden für die Formulierung der Anforderungenund zur Validierung der Ergebnisse des Simulationsmodells genutzt.Es wurde ein Prozessmodell, basierend auf einer Co-Simulation zwischen MATLAB und ANSYS,entwickelt; hierbei wurden die phyiskalischen Phänomene wie die Ultraschall Werkstoffentfestigung,der Verbindungsaufbau und die dynamischen Systemeigenschaften abgebildet.Basierend auf einer Zug-Druck-Prüfmaschine wurde ein Prüfstand zur Identifikation der Modellparameterentwickelt. In zusätzlichen Druckversuchen mit den Bonddrähten mit und ohneUltraschallanregung wurde die Reduktion der Umformkräfte unter Ultraschalleinfluss untersucht.Mit dem entwickelten Prozessmodell wurden die Parameterstudien aus den Ultraschall-Drahtbondversuchensimuliert und direkt mit den experimentellen Ergebnissen verglichen, wobei sich einerelativ gute Übereinstimmung zwischen Simulation und Messung sowohl für Aluminium, als auchfür Kupfer, erzielen ließ.","lang":"ger"},{"lang":"eng","text":"Ultrasonic heavy wire bonding with aluminium wire is a standard process to produce electricalcontacts in power semiconductor modules. The increasing demands on the efficiency and reliabilityof the modules have led to technological developments and copper wires with significantlybetter electrical and thermal properties are used more often nowadays. This results in new challengesin process development due to higher process forces and ultrasonic power; for this purpose,a simulation model is developed to improve process development.Ultrasonic wire bonding tests with 400 m aluminium and copper wires were carried out to investigatethe influence of the process parameters on the bond quality; these results and additionalmeasurements of wire deformation and vibrations were used to define the requirements for themodel and validate the results of the simulation.A process model based on a co-simulation was developed between MATLAB and ANSYS; thephysical phenomena such as ultrasonic softening of the wire material, bond formation and dynamicbehaviour of the components were considered.Based on a tensile-compression testing machine, a test rig was developed to identify the modelparameters. In additional compression tests with the wires with and without ultrasonic excitation,the reduction of the forming forces under ultrasonic influence was characterised.With the developed process model, the parameter studies from the ultrasonic wire bond testswere simulated and directly compared with the experimental results; a relative good agreementbetween simulation and measurement could be achieved for both aluminium and copper."}],"related_material":{"link":[{"url":"https://www.shaker.eu/en/content/catalogue/index.asp?lang=en&ID=8&ISBN=978-3-8440-8527-3&search=yes","relation":"dissertation_contains"}]},"type":"dissertation","department":[{"_id":"151"}],"date_created":"2022-12-07T14:03:17Z","publication_status":"published","date_updated":"2022-12-07T14:15:23Z","intvolume":"        13","year":"2022","title":"Enhanced process development by simulation of ultrasonic heavy wire bonding","publication_identifier":{"isbn":["\t978-3-8440-8527-3"]},"author":[{"full_name":"Schemmel, Reinhard","last_name":"Schemmel","first_name":"Reinhard","id":"28647"}],"doi":"10.17619/UNIPB/1-1280","main_file_link":[{"open_access":"1","url":"https://digital.ub.uni-paderborn.de/hs/id/6223291"}],"series_title":"Schriften des Lehrstuhls für Dynamik und Mechatronik","language":[{"iso":"eng"}],"citation":{"mla":"Schemmel, Reinhard. <i>Enhanced Process Development by Simulation of Ultrasonic Heavy Wire Bonding</i>. Shaker, 2022, doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1280\">10.17619/UNIPB/1-1280</a>.","ama":"Schemmel R. <i>Enhanced Process Development by Simulation of Ultrasonic Heavy Wire Bonding</i>. Vol 13. Shaker; 2022. doi:<a href=\"https://doi.org/10.17619/UNIPB/1-1280\">10.17619/UNIPB/1-1280</a>","bibtex":"@book{Schemmel_2022, series={Schriften des Lehrstuhls für Dynamik und Mechatronik}, title={Enhanced process development by simulation of ultrasonic heavy wire bonding}, volume={13}, DOI={<a href=\"https://doi.org/10.17619/UNIPB/1-1280\">10.17619/UNIPB/1-1280</a>}, publisher={Shaker}, author={Schemmel, Reinhard}, year={2022}, collection={Schriften des Lehrstuhls für Dynamik und Mechatronik} }","apa":"Schemmel, R. (2022). <i>Enhanced process development by simulation of ultrasonic heavy wire bonding</i> (Vol. 13). Shaker. <a href=\"https://doi.org/10.17619/UNIPB/1-1280\">https://doi.org/10.17619/UNIPB/1-1280</a>","ieee":"R. Schemmel, <i>Enhanced process development by simulation of ultrasonic heavy wire bonding</i>, vol. 13. Shaker, 2022.","short":"R. Schemmel, Enhanced Process Development by Simulation of Ultrasonic Heavy Wire Bonding, Shaker, 2022.","chicago":"Schemmel, Reinhard. <i>Enhanced Process Development by Simulation of Ultrasonic Heavy Wire Bonding</i>. Vol. 13. Schriften Des Lehrstuhls Für Dynamik Und Mechatronik. Shaker, 2022. <a href=\"https://doi.org/10.17619/UNIPB/1-1280\">https://doi.org/10.17619/UNIPB/1-1280</a>."},"supervisor":[{"full_name":"Sextro, Walter","last_name":"Sextro","first_name":"Walter","id":"21220"}],"oa":"1","status":"public","user_id":"210","volume":13,"page":"174","_id":"34272","publisher":"Shaker"},{"abstract":[{"lang":"ger","text":"Eines der Lernziele des Physikstudiums stellt der Erwerb literaler Fähigkeiten für das Verfassen wissenschaftlicher Arbeiten dar. Die Student:innen werden allerdings im Rahmen ihres Studiums bisher kaum systematisch beim Erwerb dieser Fähigkeiten unterstützt. Eine Übungsgelegenheit für das Verfassen von Texten nach wissenschaftlichem Vorbild stellt das Laborpraktikum dar, in dem die Student:innen zu den absolvierten Experimenten Laborberichte verfassen. Im Paderborner Physik Praktikum 3P wurden in den letzten Jahren vier unterschiedliche Unterstützungsangebote für das Erlernen des wissenschaftlichen Schreibens entwickelt und mittels Zufriedenheitswerten evaluiert. In dem Beitrag werden die vier Angebote auf inhaltlicher Ebene hinsichtlich der Lernwirksamkeit mittels einer schriftproduktbasierten Evaluation analysiert. Durch die vergleichende Analyse können Potenziale und Grenzen der Angebote diskutiert und Implikationen für die Gestaltung von Unterstützungsangeboten zum Erlernen des wissenschaftlichen Schreibens in der Physik abgeleitet werden."}],"publication":"PhyDid A - Physik und Didaktik in Schule und Hochschule ","issue":"1","department":[{"_id":"299"},{"_id":"576"},{"_id":"651"}],"keyword":["Laborpraktikum","Schreiben"],"type":"journal_article","date_created":"2022-12-09T15:45:40Z","article_type":"original","intvolume":"        21","publication_status":"published","date_updated":"2022-12-09T15:46:02Z","publication_identifier":{"unknown":["1865-5521"]},"author":[{"first_name":"Anna Brigitte","last_name":"Bauer","orcid":"0000-0002-1742-3099","full_name":"Bauer, Anna Brigitte","id":"24755"},{"full_name":"Lahme, Simon Zacharias","first_name":"Simon Zacharias","last_name":"Lahme"},{"id":"26883","full_name":"Sacher, Marc","first_name":"Marc","last_name":"Sacher"}],"year":"2022","title":"Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P","language":[{"iso":"ger"}],"main_file_link":[{"open_access":"1","url":"http://phydid.physik.fu-berlin.de/index.php/phydid/article/view/1200"}],"quality_controlled":"1","citation":{"bibtex":"@article{Bauer_Lahme_Sacher_2022, title={Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P}, volume={21}, number={1}, journal={PhyDid A - Physik und Didaktik in Schule und Hochschule }, author={Bauer, Anna Brigitte and Lahme, Simon Zacharias and Sacher, Marc}, year={2022}, pages={23–34} }","ama":"Bauer AB, Lahme SZ, Sacher M. Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P. <i>PhyDid A - Physik und Didaktik in Schule und Hochschule </i>. 2022;21(1):23-34.","mla":"Bauer, Anna Brigitte, et al. “Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P.” <i>PhyDid A - Physik und Didaktik in Schule und Hochschule </i>, vol. 21, no. 1, 2022, pp. 23–34.","short":"A.B. Bauer, S.Z. Lahme, M. Sacher, PhyDid A - Physik und Didaktik in Schule und Hochschule  21 (2022) 23–34.","chicago":"Bauer, Anna Brigitte, Simon Zacharias Lahme, and Marc Sacher. “Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P.” <i>PhyDid A - Physik und Didaktik in Schule und Hochschule </i> 21, no. 1 (2022): 23–34.","ieee":"A. B. Bauer, S. Z. Lahme, and M. Sacher, “Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P,” <i>PhyDid A - Physik und Didaktik in Schule und Hochschule </i>, vol. 21, no. 1, pp. 23–34, 2022.","apa":"Bauer, A. B., Lahme, S. Z., &#38; Sacher, M. (2022). Potenziale und Grenzen von Unterstützungsmaßnahmen zum wissenschaftlichen Schreiben im Paderborner Physik Praktikum 3P. <i>PhyDid A - Physik und Didaktik in Schule und Hochschule </i>, <i>21</i>(1), 23–34."},"oa":"1","status":"public","volume":21,"user_id":"24755","_id":"34316","page":"23-34"},{"date_created":"2022-12-14T12:32:29Z","keyword":["Industrial and Manufacturing Engineering"],"type":"journal_article","issue":"4","publication":"AI","abstract":[{"lang":"eng","text":"Given strict emission targets and legal requirements, especially in the automotive industry, environmentally friendly and simultaneously versatile applicable production technologies are gaining importance. In this regard, the use of mechanical joining processes, such as clinching, enable assembly sheet metals to achieve strength properties similar to those of established thermal joining technologies. However, to guarantee a high reliability of the generated joint connection, the selection of a best-fitting joining technology as well as the meaningful description of individual joint properties is essential. In the context of clinching, few contributions have to date investigated the metamodel-based estimation and optimization of joint characteristics, such as neck or interlock thickness, by applying machine learning and genetic algorithms. Therefore, several regression models have been trained on varying databases and amounts of input parameters. However, if product engineers can only provide limited data for a new joining task, such as incomplete information on applied joining tool dimensions, previously trained metamodels often reach their limits. This often results in a significant loss of prediction quality and leads to increasing uncertainties and inaccuracies within the metamodel-based design of a clinch joint connection. Motivated by this, the presented contribution investigates different machine learning algorithms regarding their ability to achieve a satisfying estimation accuracy on limited input data applying a statistically based feature selection method. Through this, it is possible to identify which regression models are suitable to predict clinch joint characteristics considering only a minimum set of required input features. Thus, in addition to the opportunity to decrease the training effort as well as the model complexity, the subsequent formulation of design equations can pave the way to a more versatile application and reuse of pretrained metamodels on varying tool configurations for a given clinch joining task."}],"main_file_link":[{"url":"https://www.mdpi.com/2673-2688/3/4/59","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.3390/ai3040059","title":"Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels","year":"2022","publication_identifier":{"issn":["2673-2688"]},"author":[{"full_name":"Zirngibl, Christoph","first_name":"Christoph","last_name":"Zirngibl"},{"full_name":"Schleich, Benjamin","last_name":"Schleich","first_name":"Benjamin"},{"full_name":"Wartzack, Sandro","last_name":"Wartzack","first_name":"Sandro"}],"publication_status":"published","date_updated":"2022-12-14T13:43:53Z","intvolume":"         3","oa":"1","citation":{"bibtex":"@article{Zirngibl_Schleich_Wartzack_2022, title={Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels}, volume={3}, DOI={<a href=\"https://doi.org/10.3390/ai3040059\">10.3390/ai3040059</a>}, number={4}, journal={AI}, publisher={MDPI AG}, author={Zirngibl, Christoph and Schleich, Benjamin and Wartzack, Sandro}, year={2022}, pages={990–1006} }","ama":"Zirngibl C, Schleich B, Wartzack S. Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels. <i>AI</i>. 2022;3(4):990-1006. doi:<a href=\"https://doi.org/10.3390/ai3040059\">10.3390/ai3040059</a>","mla":"Zirngibl, Christoph, et al. “Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels.” <i>AI</i>, vol. 3, no. 4, MDPI AG, 2022, pp. 990–1006, doi:<a href=\"https://doi.org/10.3390/ai3040059\">10.3390/ai3040059</a>.","short":"C. Zirngibl, B. Schleich, S. Wartzack, AI 3 (2022) 990–1006.","chicago":"Zirngibl, Christoph, Benjamin Schleich, and Sandro Wartzack. “Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels.” <i>AI</i> 3, no. 4 (2022): 990–1006. <a href=\"https://doi.org/10.3390/ai3040059\">https://doi.org/10.3390/ai3040059</a>.","ieee":"C. Zirngibl, B. Schleich, and S. Wartzack, “Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels,” <i>AI</i>, vol. 3, no. 4, pp. 990–1006, 2022, doi: <a href=\"https://doi.org/10.3390/ai3040059\">10.3390/ai3040059</a>.","apa":"Zirngibl, C., Schleich, B., &#38; Wartzack, S. (2022). Estimation of Clinch Joint Characteristics Based on Limited Input Data Using Pre-Trained Metamodels. <i>AI</i>, <i>3</i>(4), 990–1006. <a href=\"https://doi.org/10.3390/ai3040059\">https://doi.org/10.3390/ai3040059</a>"},"project":[{"_id":"130","grant_number":"418701707","name":"TRR 285: TRR 285"},{"_id":"132","name":"TRR 285 - B: TRR 285 - Project Area B"},{"_id":"144","name":"TRR 285 – B05: TRR 285 - Subproject B05"}],"page":"990-1006","publisher":"MDPI AG","_id":"34417","user_id":"7850","volume":3,"status":"public"},{"citation":{"apa":"Schönhärl, K. (2022). Review on: Daniel Benedikt Stienen: Verkauftes Vaterland. In <i>Sehepunkte</i> (Vol. 22, Issue 11).","ieee":"K. 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Review on: Daniel Benedikt Stienen: Verkauftes Vaterland. <i>Sehepunkte</i>. 2022;22(11).","bibtex":"@article{Schönhärl_2022, title={Review on: Daniel Benedikt Stienen: Verkauftes Vaterland}, volume={22}, number={11}, journal={Sehepunkte}, author={Schönhärl, Korinna}, year={2022} }"},"publication":"Sehepunkte","issue":"11","quality_controlled":"1","date_created":"2022-12-19T11:01:46Z","department":[{"_id":"445"}],"oa":"1","type":"review","author":[{"full_name":"Schönhärl, Korinna","orcid":"0000-0002-7967-3261","last_name":"Schönhärl","first_name":"Korinna","id":"89037"}],"year":"2022","status":"public","title":"Review on: Daniel Benedikt Stienen: Verkauftes Vaterland","intvolume":"        22","date_updated":"2022-12-19T11:01:55Z","language":[{"iso":"eng"}],"_id":"34549","main_file_link":[{"open_access":"1","url":"http://www.sehepunkte.de /2022/11/36727.html"}],"volume":22,"user_id":"89037","publication_date":"2022-11-15"},{"user_id":"89037","publication_date":"2022-6-23","main_file_link":[{"open_access":"1"}],"_id":"34554","language":[{"iso":"eng"}],"date_updated":"2022-12-19T11:13:13Z","title":"Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach ","status":"public","year":"2022","author":[{"id":"89037","last_name":"Schönhärl","first_name":"Korinna","orcid":"0000-0002-7967-3261","full_name":"Schönhärl, Korinna"}],"type":"review","department":[{"_id":"445"}],"oa":"1","date_created":"2022-12-19T11:13:08Z","related_material":{"link":[{"url":"https://www.hsozkult.de/publicationreview/id/reb-115613","relation":"confirmation"}]},"quality_controlled":"1","publication":"HSozKult","citation":{"short":"K. Schönhärl, HSozKult (2022).","chicago":"Schönhärl, Korinna. “Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach .” <i>HSozKult</i>, 2022.","ieee":"K. Schönhärl, “Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach ,” <i>HSozKult</i>. 2022.","apa":"Schönhärl, K. (2022). Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach . In <i>HSozKult</i>.","bibtex":"@article{Schönhärl_2022, title={Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach }, journal={HSozKult}, author={Schönhärl, Korinna}, year={2022} }","ama":"Schönhärl K. Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach . <i>HSozKult</i>. Published online 2022.","mla":"Schönhärl, Korinna. “Review on: Sven Steinmo: Willing to Pay? A Reasonable Choice Approach .” <i>HSozKult</i>, 2022."}},{"external_id":{"arxiv":["2210.04579"]},"date_created":"2022-12-20T15:25:17Z","type":"preprint","oa":"1","department":[{"_id":"101"}],"publication":"arXiv:2210.04579","citation":{"ieee":"B. Gebken, “Using second-order information in gradient sampling methods for  nonsmooth optimization,” <i>arXiv:2210.04579</i>. 2022.","apa":"Gebken, B. (2022). Using second-order information in gradient sampling methods for  nonsmooth optimization. In <i>arXiv:2210.04579</i>.","chicago":"Gebken, Bennet. “Using Second-Order Information in Gradient Sampling Methods for  Nonsmooth Optimization.” <i>ArXiv:2210.04579</i>, 2022.","short":"B. Gebken, ArXiv:2210.04579 (2022).","mla":"Gebken, Bennet. “Using Second-Order Information in Gradient Sampling Methods for  Nonsmooth Optimization.” <i>ArXiv:2210.04579</i>, 2022.","bibtex":"@article{Gebken_2022, title={Using second-order information in gradient sampling methods for  nonsmooth optimization}, journal={arXiv:2210.04579}, author={Gebken, Bennet}, year={2022} }","ama":"Gebken B. Using second-order information in gradient sampling methods for  nonsmooth optimization. <i>arXiv:221004579</i>. Published online 2022."},"abstract":[{"text":"In this article, we show how second-order derivative information can be\r\nincorporated into gradient sampling methods for nonsmooth optimization. The\r\nsecond-order information we consider is essentially the set of coefficients of\r\nall second-order Taylor expansions of the objective in a closed ball around a\r\ngiven point. Based on this concept, we define a model of the objective as the\r\nmaximum of these Taylor expansions. Iteratively minimizing this model\r\n(constrained to the closed ball) results in a simple descent method, for which\r\nwe prove convergence to minimal points in case the objective is convex. To\r\nobtain an implementable method, we construct an approximation scheme for the\r\nsecond-order information based on sampling objective values, gradients and\r\nHessian matrices at finitely many points. Using a set of test problems, we\r\ncompare the resulting method to five other available solvers. Considering the\r\nnumber of function evaluations, the results suggest that the method we propose\r\nis superior to the standard gradient sampling method, and competitive compared\r\nto other methods.","lang":"eng"}],"main_file_link":[{"open_access":"1","url":"https://arxiv.org/pdf/2210.04579"}],"_id":"34618","language":[{"iso":"eng"}],"user_id":"32643","year":"2022","status":"public","title":"Using second-order information in gradient sampling methods for  nonsmooth optimization","author":[{"last_name":"Gebken","first_name":"Bennet","full_name":"Gebken, Bennet","id":"32643"}],"date_updated":"2022-12-20T15:28:54Z"}]