[{"department":[{"_id":"146"},{"_id":"9"},{"_id":"624"},{"_id":"149"},{"_id":"321"}],"user_id":"97759","_id":"63512","article_number":"105753","type":"journal_article","status":"public","author":[{"first_name":"Thorsten","last_name":"Koers","id":"38077","full_name":"Koers, Thorsten"},{"full_name":"Magyar, Balázs","id":"97759","last_name":"Magyar","first_name":"Balázs"},{"full_name":"Bödger, Christian","id":"93904","last_name":"Bödger","first_name":"Christian"},{"first_name":"Thomas","full_name":"Tröster, Thomas","id":"553","last_name":"Tröster"}],"oa":"1","date_updated":"2026-01-14T11:56:01Z","doi":"10.1016/j.ijpvp.2026.105753","main_file_link":[{"open_access":"1","url":"https://doi.org/10.1016/j.ijpvp.2026.105753"}],"publication_identifier":{"issn":["0308-0161"]},"publication_status":"published","citation":{"ieee":"T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M,” <i>International Journal of Pressure Vessels and Piping</i>, Art. no. 105753, 2026, doi: <a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">10.1016/j.ijpvp.2026.105753</a>.","chicago":"Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” <i>International Journal of Pressure Vessels and Piping</i>, 2026. <a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">https://doi.org/10.1016/j.ijpvp.2026.105753</a>.","ama":"Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. <i>International Journal of Pressure Vessels and Piping</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">10.1016/j.ijpvp.2026.105753</a>","mla":"Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical Pressure of Pipe Structures Manufactured by PBF-LB/M.” <i>International Journal of Pressure Vessels and Piping</i>, 105753, Elsevier BV, 2026, doi:<a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">10.1016/j.ijpvp.2026.105753</a>.","bibtex":"@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M}, DOI={<a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">10.1016/j.ijpvp.2026.105753</a>}, number={105753}, journal={International Journal of Pressure Vessels and Piping}, publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger, Christian and Tröster, Thomas}, year={2026} }","short":"T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure Vessels and Piping (2026).","apa":"Koers, T., Magyar, B., Bödger, C., &#38; Tröster, T. (2026). Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M. <i>International Journal of Pressure Vessels and Piping</i>, Article 105753. <a href=\"https://doi.org/10.1016/j.ijpvp.2026.105753\">https://doi.org/10.1016/j.ijpvp.2026.105753</a>"},"language":[{"iso":"eng"}],"keyword":["PBF-LB/M","Pipe structures","Strength assessment","Burst pressure test","Geometrical deviations"],"publication":"International Journal of Pressure Vessels and Piping","abstract":[{"text":"The state of the art shows that PBF-LB/M offers great potential for pressure-loaded parts, with significant weight reductions and simultaneous optimization of flow resistance. This study is aimed at applying existing calculation methods for pressure-loaded parts to additively manufactured pipe structures, considering the two materials EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this purpose, systematic tensile tests are carried out for both materials. In addition, a statistical evaluation is performed to determine the design-relevant strength characteristics with a survival probability Ps of 97.5 % for both materials in the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half of which are heat treated, geometrically measured and then subjected to a burst pressure test to experimentally determine the failure-critical internal pressure. These results are compared with calculated burst pressures. The calculations are based on the application-relevant methods identified in this study, considering the strength values determined for the respective material condition. This comparison is used to assess the suitability of the calculation methods for additively manufactured pipe structures, based on the materials investigated.","lang":"eng"}],"date_created":"2026-01-07T08:39:04Z","publisher":"Elsevier BV","title":"Analytical and experimental determination of the failure-critical pressure of pipe structures manufactured by PBF-LB/M","quality_controlled":"1","year":"2026"},{"type":"book","status":"public","_id":"63614","user_id":"41561","department":[{"_id":"16"}],"language":[{"iso":"ger"}],"year":"2026","place":"Paris","citation":{"ieee":"A. Marchetti, <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends</i>. Paris: Konrad-Adenauer-Stiftung, 2026.","chicago":"Marchetti, Andreas. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends</i>. Paris: Konrad-Adenauer-Stiftung, 2026.","ama":"Marchetti A. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends</i>. Konrad-Adenauer-Stiftung; 2026.","apa":"Marchetti, A. (2026). <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends</i>. Konrad-Adenauer-Stiftung.","bibtex":"@book{Marchetti_2026, place={Paris}, title={Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends}, publisher={Konrad-Adenauer-Stiftung}, author={Marchetti, Andreas}, year={2026} }","short":"A. Marchetti, Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends, Konrad-Adenauer-Stiftung, Paris, 2026.","mla":"Marchetti, Andreas. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends</i>. Konrad-Adenauer-Stiftung, 2026."},"page":"70","oa":"1","publisher":"Konrad-Adenauer-Stiftung","date_updated":"2026-01-15T00:38:59Z","date_created":"2026-01-15T00:37:11Z","author":[{"last_name":"Marchetti","id":"41561","full_name":"Marchetti, Andreas","first_name":"Andreas"}],"title":"Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends","main_file_link":[{"open_access":"1","url":"https://www.kas.de/de/web/frankreich/publikationen/einzeltitel/-/content/moderne-staedte-und-gemeindepartnerschaften-foerdermoeglichkeiten-und-praxistrends"}]},{"type":"report","status":"public","_id":"63661","user_id":"89772","language":[{"iso":"eng"}],"place":"theorieblog.de","year":"2026","citation":{"ieee":"S. Althoff and R. Verhoeven, <i>Tagungsbericht: Von widerständigen Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten</i>. theorieblog.de, 2026.","chicago":"Althoff, Sebastian, and Ragna Verhoeven. <i>Tagungsbericht: Von Widerständigen Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten</i>. theorieblog.de, 2026.","ama":"Althoff S, Verhoeven R. <i>Tagungsbericht: Von Widerständigen Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten</i>.; 2026.","bibtex":"@book{Althoff_Verhoeven_2026, place={theorieblog.de}, title={Tagungsbericht: Von widerständigen Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten}, author={Althoff, Sebastian and Verhoeven, Ragna}, year={2026} }","short":"S. Althoff, R. Verhoeven, Tagungsbericht: Von Widerständigen Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten, theorieblog.de, 2026.","mla":"Althoff, Sebastian, and Ragna Verhoeven. <i>Tagungsbericht: Von Widerständigen Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten</i>. 2026.","apa":"Althoff, S., &#38; Verhoeven, R. (2026). <i>Tagungsbericht: Von widerständigen Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten</i>."},"oa":"1","date_updated":"2026-01-20T08:49:18Z","date_created":"2026-01-20T08:49:03Z","author":[{"first_name":"Sebastian","last_name":"Althoff","id":"89772","full_name":"Althoff, Sebastian"},{"first_name":"Ragna","last_name":"Verhoeven","full_name":"Verhoeven, Ragna"}],"title":"Tagungsbericht: Von widerständigen Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten","main_file_link":[{"url":"https://www.theorieblog.de/index.php/2026/01/tagungsbericht-von-widerstaendigen-verweigerungen-und-vom-ueber-leben-in-feindlichen-umgebungen-politische-theorie-zwischen-unsichtbarkeiten/","open_access":"1"}]},{"series_title":"Digitale Gesellschaft","user_id":"25121","department":[{"_id":"11"}],"_id":"63674","type":"book_chapter","status":"public","editor":[{"first_name":"Christina","last_name":"Bartz","full_name":"Bartz, Christina"},{"full_name":"Cyrkel, Jakob","last_name":"Cyrkel","first_name":"Jakob"},{"last_name":"Hüttemann","full_name":"Hüttemann, Felix","first_name":"Felix"},{"first_name":"Monique","last_name":"Miggelbrink","full_name":"Miggelbrink, Monique"}],"author":[{"first_name":"Jakob","last_name":"Cyrkel","orcid":"0009-0006-7737-0845","id":"25121","full_name":"Cyrkel, Jakob"}],"volume":66,"oa":"1","date_updated":"2026-01-20T16:53:49Z","main_file_link":[{"open_access":"1","url":"https://www.transcript-verlag.de/978-3-8376-7115-5/computerwohnen/?number=978-3-8394-7115-9"}],"doi":"10.14361/9783839471159","publication_status":"published","publication_identifier":{"eisbn":["978-3-8394-7115-9"],"isbn":["978-3-8376-7115-5"]},"citation":{"ieee":"J. Cyrkel, “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer,” in <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>, vol. 66, C. Bartz, J. Cyrkel, F. Hüttemann, and M. Miggelbrink, Eds. Bielefeld: transcript Verlag, 2026, pp. 317–331.","chicago":"Cyrkel, Jakob. “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer.” In <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>, edited by Christina Bartz, Jakob Cyrkel, Felix Hüttemann, and Monique Miggelbrink, 66:317–31. Digitale Gesellschaft. Bielefeld: transcript Verlag, 2026. <a href=\"https://doi.org/10.14361/9783839471159\">https://doi.org/10.14361/9783839471159</a>.","ama":"Cyrkel J. »Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer. In: Bartz C, Cyrkel J, Hüttemann F, Miggelbrink M, eds. <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>. Vol 66. Digitale Gesellschaft. transcript Verlag; 2026:317-331. doi:<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>","apa":"Cyrkel, J. (2026). »Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer. In C. Bartz, J. Cyrkel, F. Hüttemann, &#38; M. Miggelbrink (Eds.), <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i> (Vol. 66, pp. 317–331). transcript Verlag. <a href=\"https://doi.org/10.14361/9783839471159\">https://doi.org/10.14361/9783839471159</a>","mla":"Cyrkel, Jakob. “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer.” <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>, edited by Christina Bartz et al., vol. 66, transcript Verlag, 2026, pp. 317–31, doi:<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>.","bibtex":"@inbook{Cyrkel_2026, place={Bielefeld}, series={Digitale Gesellschaft}, title={»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer}, volume={66}, DOI={<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>}, booktitle={ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz}, publisher={transcript Verlag}, author={Cyrkel, Jakob}, editor={Bartz, Christina and Cyrkel, Jakob and Hüttemann, Felix and Miggelbrink, Monique}, year={2026}, pages={317–331}, collection={Digitale Gesellschaft} }","short":"J. Cyrkel, in: C. Bartz, J. Cyrkel, F. Hüttemann, M. Miggelbrink (Eds.), ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz, transcript Verlag, Bielefeld, 2026, pp. 317–331."},"intvolume":"        66","page":"317-331","place":"Bielefeld","language":[{"iso":"ger"}],"publication":"ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz","abstract":[{"text":"Der Beitrag konzentriert sich am Beispiel des IVAR Planers auf die virtuellen Einrichtungstools des Einrichtungskonzerns IKEA und fragt danach, welche Politiken des Wohnens und Einrichtens sich aus der Medialität dieser virtuellen Umgebungen ergeben. Anhand von Stefan Riegers Überlegungen zum virtuellen Testen werden diese Planungstools einerseits als auf Dauer gestellte Testumgebungen verstanden, die es den Kund*innen erlauben, das eigene Zuhause – ökologisch wie ökonomisch niederschwellig – virtuell immer wieder einzurichten. Andererseits werden die Anrufungen zur Kreativität, die ständig an die Kund*innen gerichtet werden, in die Überlegungen mit einbezogen, weil sich daraus eine paradoxe Konstellation ergibt: Zum einen sollen so die virtuellen Einrichtungstools kreatives Potenzial und eigenständige Gestaltung aufrufen; zum anderen werden diese Aufrufe aber durch die Medialität der Tools eingehegt und damit zu einem Steuerungsregime.","lang":"ger"},{"text":"Using the example of the IVAR planner, the article focuses on the virtual furnishing tools of the furniture company IKEA and asks which policies of living and furnishing result from the mediality of these virtual environments. Based on Stefan Rieger’s reflections on virtual testing, these planning tools are understood on the one hand as permanent test environments that allow customers to furnish their own homes virtually again and again – in an ecologically and economically low-threshold way. On the other hand, the appeals for creativity that are constantly made to customers are included in the considerations because this results in a paradoxical constellation: On the one hand, the virtual furnishing tools are intended to invoke creative potential and independent design; on the other hand, however, these invocations are contained by the mediality of the tools and thus become a control regime.","lang":"eng"}],"date_created":"2026-01-20T16:22:07Z","publisher":"transcript Verlag","title":"»Inspiration & Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer","year":"2026"},{"editor":[{"full_name":"Bartz, Christina","id":"21546","last_name":"Bartz","first_name":"Christina"},{"orcid":"0009-0006-7737-0845","last_name":"Cyrkel","full_name":"Cyrkel, Jakob","id":"25121","first_name":"Jakob"},{"first_name":"Felix","last_name":"Hüttemann","id":"85501","full_name":"Hüttemann, Felix"},{"first_name":"Monique","id":"5042","full_name":"Miggelbrink, Monique","last_name":"Miggelbrink"}],"status":"public","type":"book_editor","_id":"63673","user_id":"25121","series_title":"Digitale Gesellschaft","department":[{"_id":"11"}],"place":"Bielefeld","citation":{"ama":"Bartz C, Cyrkel J, Hüttemann F, Miggelbrink M, eds. <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>. Vol 66. transcript Verlag; 2026. doi:<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>","ieee":"C. Bartz, J. Cyrkel, F. Hüttemann, and M. Miggelbrink, Eds., <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>, vol. 66. Bielefeld: transcript Verlag, 2026.","chicago":"Bartz, Christina, Jakob Cyrkel, Felix Hüttemann, and Monique Miggelbrink, eds. <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>. Vol. 66. Digitale Gesellschaft. Bielefeld: transcript Verlag, 2026. <a href=\"https://doi.org/10.14361/9783839471159\">https://doi.org/10.14361/9783839471159</a>.","apa":"Bartz, C., Cyrkel, J., Hüttemann, F., &#38; Miggelbrink, M. (Eds.). (2026). <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i> (Vol. 66). transcript Verlag. <a href=\"https://doi.org/10.14361/9783839471159\">https://doi.org/10.14361/9783839471159</a>","short":"C. Bartz, J. Cyrkel, F. Hüttemann, M. Miggelbrink, eds., ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz, transcript Verlag, Bielefeld, 2026.","mla":"Bartz, Christina, et al., editors. <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>. transcript Verlag, 2026, doi:<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>.","bibtex":"@book{Bartz_Cyrkel_Hüttemann_Miggelbrink_2026, place={Bielefeld}, series={Digitale Gesellschaft}, title={ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz}, volume={66}, DOI={<a href=\"https://doi.org/10.14361/9783839471159\">10.14361/9783839471159</a>}, publisher={transcript Verlag}, year={2026}, collection={Digitale Gesellschaft} }"},"intvolume":"        66","page":"336","publication_status":"published","publication_identifier":{"isbn":["978-3-8376-7115-5"],"eisbn":["978-3-8394-7115-9"]},"main_file_link":[{"open_access":"1","url":"https://www.transcript-verlag.de/978-3-8376-7115-5/computerwohnen/?number=978-3-8394-7115-9"}],"doi":"10.14361/9783839471159","date_updated":"2026-01-20T16:52:48Z","oa":"1","volume":66,"abstract":[{"text":"Unter welchen historischen Bedingungen und mit welchen Auswirkungen wurde der Computer zum Bestandteil des Wohnalltags? Und wie verhält es sich dabei mit Praktiken des Wohnens und Wohnungseinrichtens? Die Beiträger*innen werfen einen Blick auf die Computerisierung des Zuhauses und zeigen, wie sie sich vollzieht. Der Fokus ihrer Analysen liegt einerseits darauf, wie Arbeit und Assistenz das Wohnen im Hinblick auf den Computer prägen. Andererseits denken sie den Computer aus der Perspektive der Wohnumgebungen neu und geben so einen kompakten medienhistorischen Überblick über den Beginn des Smart Homes.","lang":"ger"}],"keyword":["Mediengeschichte","Digitale Medien","Design","Medien","Medienwissenschaft","Medienästhetik","Mediensoziologie","Medientheorie","Medienphilosophie","Architektur","Technikgeschichte","Technik","Kultur","Kulturwissenschaft","Kulturgeschichte","Kulturtheorie","Popkultur","Geschichte des 20. Jahrhunderts","Geschichtswissenschaft","Kultursoziologie","Gender Studies","Mode","Klang","Cultural Studies","Informatik"],"language":[{"iso":"ger"}],"year":"2026","title":"ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz","publisher":"transcript Verlag","date_created":"2026-01-20T16:07:44Z"},{"title":"Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D","date_created":"2026-01-20T19:33:40Z","publisher":"Wiley","year":"2026","issue":"2","quality_controlled":"1","language":[{"iso":"eng"}],"keyword":["electrocatalysis","Co3O4","EQCM-D","OER"],"abstract":[{"text":"Cobalt spinel (Co3O4) catalysts are widely studied in scope of the electrocatalytic oxygen evolution reaction (OER), yet the role of interfacial structural transformation under anodic bias remains under debate. Here, we employ an operando approach, combining a fast electrochemical quartz crystal microbalance with dissipation monitoring (EQCM-D), electrochemical impedance spectroscopy (EIS), and Raman spectroscopy to investigate interfacial transformations of Co3O4 nanoparticle electrodes in alkaline electrolyte. We identify two distinct regimes during the anodic sweep prior to the macroscopic OER onset. At lower potentials, the catalyst interface remains mechanically rigid while reversibly associating several OH−/H2O species per oxidized cobalt site. At higher potentials, pronounced softening of the interface occurs alongside further uptake of electrolyte species. This indicates amorphization and a ‘swelling process’ beyond simple adsorption. Notably, an electrochemical conditioning treatment can suppress mass and compliance hysteresis without affecting OER activity, suggesting that most incorporated electrolyte species do not participate in the OER. EIS further reveals that OER intermediates form well below the apparent OER onset potential. These results advance our mechanistic understanding of interfacial transformations in cobalt-based OER catalysts and establish EQCM-D as a sensitive operando technique for probing electrocatalyst transformations.","lang":"eng"}],"publication":"ChemCatChem","doi":"10.1002/cctc.202501104","main_file_link":[{"open_access":"1"}],"volume":18,"author":[{"first_name":"Christian","last_name":"Leppin","full_name":"Leppin, Christian","id":"117722"},{"last_name":"Placke‐Yan","full_name":"Placke‐Yan, Carsten","first_name":"Carsten"},{"first_name":"Georg","last_name":"Bendt","full_name":"Bendt, Georg"},{"first_name":"Sheila","last_name":"Hernandez","full_name":"Hernandez, Sheila"},{"first_name":"Kristina","full_name":"Tschulik, Kristina","last_name":"Tschulik"},{"full_name":"Schulz, Stephan","last_name":"Schulz","first_name":"Stephan"},{"last_name":"Linnemann","orcid":"0000-0001-6883-5424","full_name":"Linnemann, Julia","id":"116779","first_name":"Julia"}],"date_updated":"2026-01-20T19:36:51Z","oa":"1","intvolume":"        18","citation":{"short":"C. Leppin, C. Placke‐Yan, G. Bendt, S. Hernandez, K. Tschulik, S. Schulz, J. Linnemann, ChemCatChem 18 (2026).","mla":"Leppin, Christian, et al. “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D.” <i>ChemCatChem</i>, vol. 18, no. 2, e01104, Wiley, 2026, doi:<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>.","bibtex":"@article{Leppin_Placke‐Yan_Bendt_Hernandez_Tschulik_Schulz_Linnemann_2026, title={Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D}, volume={18}, DOI={<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>}, number={2e01104}, journal={ChemCatChem}, publisher={Wiley}, author={Leppin, Christian and Placke‐Yan, Carsten and Bendt, Georg and Hernandez, Sheila and Tschulik, Kristina and Schulz, Stephan and Linnemann, Julia}, year={2026} }","apa":"Leppin, C., Placke‐Yan, C., Bendt, G., Hernandez, S., Tschulik, K., Schulz, S., &#38; Linnemann, J. (2026). Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D. <i>ChemCatChem</i>, <i>18</i>(2), Article e01104. <a href=\"https://doi.org/10.1002/cctc.202501104\">https://doi.org/10.1002/cctc.202501104</a>","ama":"Leppin C, Placke‐Yan C, Bendt G, et al. Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D. <i>ChemCatChem</i>. 2026;18(2). doi:<a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>","ieee":"C. Leppin <i>et al.</i>, “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D,” <i>ChemCatChem</i>, vol. 18, no. 2, Art. no. e01104, 2026, doi: <a href=\"https://doi.org/10.1002/cctc.202501104\">10.1002/cctc.202501104</a>.","chicago":"Leppin, Christian, Carsten Placke‐Yan, Georg Bendt, Sheila Hernandez, Kristina Tschulik, Stephan Schulz, and Julia Linnemann. “Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D.” <i>ChemCatChem</i> 18, no. 2 (2026). <a href=\"https://doi.org/10.1002/cctc.202501104\">https://doi.org/10.1002/cctc.202501104</a>."},"publication_identifier":{"issn":["1867-3880","1867-3899"]},"publication_status":"published","article_number":"e01104","department":[{"_id":"985"}],"user_id":"116779","_id":"63675","status":"public","type":"journal_article"},{"popular_science":"1","type":"book","abstract":[{"text":"Translated from German, The Handbook of Qualitative and Quantitative Content Analysis is a comprehensive handbook which offers an application-orientated introduction to qualitative and quantitative content analysis methods.\r\n\r\nThe book provides explanations for beginners from bachelor level onwards on how to select an appropriate qualitative or quantitative content analysis method and how to use the chosen method(s) depending on research interest and amount of data. Part 1 defines the basics of qualitative and quantitative content analysis and empirical research, including research quality conventions and how to do interpretation; Part 2 is a practical guide to classical qualitative content analysis and semi-automated quantitative content analysis; and Part 3 introduces Python alongside automated techniques such as correspondence analysis, semantic network analysis, sentiment analysis, and topic modelling using generative and deep learning algorithms. Each of these sections are enriched with extensive examples and cover a range of software applications, including AntConc, MAXQDA, Python, and VosViewer.\r\n\r\nThis is the ideal resource for anyone interested in content analysis research methods across the social sciences, humanities, and data sciences.","lang":"eng"}],"status":"public","_id":"63686","user_id":"90339","department":[{"_id":"121"}],"alternative_title":["Introduction to Classical, Digital, AI-supported, and Automated Data Analysis"],"language":[{"iso":"eng"}],"publication_status":"published","publication_identifier":{"isbn":["9781003496397"]},"year":"2026","place":"London","citation":{"ama":"Schneijderberg C, Wieczorek O, Steinhardt I. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge; 2026. doi:<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>","chicago":"Schneijderberg, Christian, Oliver Wieczorek, and Isabel Steinhardt. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. London: Routledge, 2026. <a href=\"https://doi.org/10.4324/9781003496397\">https://doi.org/10.4324/9781003496397</a>.","ieee":"C. Schneijderberg, O. Wieczorek, and I. Steinhardt, <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. London: Routledge, 2026.","short":"C. Schneijderberg, O. Wieczorek, I. Steinhardt, The Handbook of Qualitative and Quantitative Content Analysis, Routledge, London, 2026.","bibtex":"@book{Schneijderberg_Wieczorek_Steinhardt_2026, place={London}, title={The Handbook of Qualitative and Quantitative Content Analysis}, DOI={<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>}, publisher={Routledge}, author={Schneijderberg, Christian and Wieczorek, Oliver and Steinhardt, Isabel}, year={2026} }","mla":"Schneijderberg, Christian, et al. <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge, 2026, doi:<a href=\"https://doi.org/10.4324/9781003496397\">10.4324/9781003496397</a>.","apa":"Schneijderberg, C., Wieczorek, O., &#38; Steinhardt, I. (2026). <i>The Handbook of Qualitative and Quantitative Content Analysis</i>. Routledge. <a href=\"https://doi.org/10.4324/9781003496397\">https://doi.org/10.4324/9781003496397</a>"},"date_updated":"2026-01-21T10:50:44Z","oa":"1","publisher":"Routledge","date_created":"2026-01-21T10:48:39Z","author":[{"full_name":"Schneijderberg, Christian","last_name":"Schneijderberg","first_name":"Christian"},{"first_name":"Oliver","full_name":"Wieczorek, Oliver","last_name":"Wieczorek"},{"first_name":"Isabel","orcid":"https://orcid.org/0000-0002-2590-6189","last_name":"Steinhardt","full_name":"Steinhardt, Isabel","id":"90339"}],"title":"The Handbook of Qualitative and Quantitative Content Analysis","main_file_link":[{"url":"https://www.taylorfrancis.com/books/9781003496397","open_access":"1"}],"doi":"10.4324/9781003496397"},{"citation":{"ieee":"I. D. Kunert, “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren,” <i>die hochschullehre</i>, vol. 12, pp. 81–96, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>.","chicago":"Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.” <i>die hochschullehre</i> 12 (2026): 81–96. <a href=\"https://doi.org/10.3278/HSL2607W\">https://doi.org/10.3278/HSL2607W</a>.","ama":"Kunert ID. Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren. <i>die hochschullehre</i>. 2026;12:81-96. doi:<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>","apa":"Kunert, I. D. (2026). Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren. <i>die hochschullehre</i>, <i>12</i>, 81–96. <a href=\"https://doi.org/10.3278/HSL2607W\">https://doi.org/10.3278/HSL2607W</a>","mla":"Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.” <i>die hochschullehre</i>, vol. 12, 2026, pp. 81–96, doi:<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>.","bibtex":"@article{Kunert_2026, title={Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren}, volume={12}, DOI={<a href=\"https://doi.org/10.3278/HSL2607W\">10.3278/HSL2607W</a>}, journal={die hochschullehre}, author={Kunert, Irene Dorothea}, year={2026}, pages={81–96} }","short":"I.D. Kunert, die hochschullehre 12 (2026) 81–96."},"page":"81-96","intvolume":"        12","year":"2026","date_created":"2026-01-21T13:12:47Z","author":[{"first_name":"Irene Dorothea","full_name":"Kunert, Irene Dorothea","id":"84452","last_name":"Kunert"}],"volume":12,"oa":"1","date_updated":"2026-01-21T13:13:00Z","main_file_link":[{"open_access":"1","url":"https://die-hochschullehre.de/articles/349/files/6968cf812df64.pdf"}],"doi":"10.3278/HSL2607W","title":"Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren","type":"journal_article","publication":"die hochschullehre","status":"public","user_id":"84452","_id":"63694","language":[{"iso":"ger"}]},{"quality_controlled":"1","citation":{"mla":"Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis.” <i>International Journal of Game Theory</i>, vol. 55, Springer, 2026, doi:<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>.","short":"C.-J. Haake, M. Schneider, International Journal of Game Theory 55 (2026).","bibtex":"@article{Haake_Schneider_2026, title={An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis}, volume={55}, DOI={<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>}, journal={International Journal of Game Theory}, publisher={Springer}, author={Haake, Claus-Jochen and Schneider, Martin}, year={2026} }","apa":"Haake, C.-J., &#38; Schneider, M. (2026). An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis. <i>International Journal of Game Theory</i>, <i>55</i>. <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">https://doi.org/10.1007/s00182-026-00978-2</a>","chicago":"Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis.” <i>International Journal of Game Theory</i> 55 (2026). <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">https://doi.org/10.1007/s00182-026-00978-2</a>.","ieee":"C.-J. Haake and M. Schneider, “An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis,” <i>International Journal of Game Theory</i>, vol. 55, 2026, doi: <a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>.","ama":"Haake C-J, Schneider M. An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis. <i>International Journal of Game Theory</i>. 2026;55. doi:<a href=\"https://doi.org/10.1007/s00182-026-00978-2\">10.1007/s00182-026-00978-2</a>"},"intvolume":"        55","year":"2026","author":[{"first_name":"Claus-Jochen","last_name":"Haake","full_name":"Haake, Claus-Jochen","id":"20801"},{"first_name":"Martin","last_name":"Schneider","orcid":"https://orcid.org/0000-0002-6961-3716","full_name":"Schneider, Martin","id":"471"}],"date_created":"2026-01-26T12:30:50Z","volume":55,"oa":"1","publisher":"Springer","date_updated":"2026-01-26T12:42:04Z","main_file_link":[{"open_access":"1","url":"https://link.springer.com/article/10.1007/s00182-026-00978-2#citeas"}],"doi":"10.1007/s00182-026-00978-2","title":"An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative Comparative Analysis","type":"journal_article","publication":"International Journal of Game Theory","status":"public","abstract":[{"lang":"eng","text":"The Banzhaf power index can be used to quantify the explanatory power of single conditions in a configurational analysis that aims at identifying whether combinations of conditions are sufficient for an outcome. The latter method is an integral part of the Qualitative Comparative Analysis (QCA) approach. It is widely used in the literature, e.g., in the field of International Management. Haake and Schneider (2023) give a rigorous description of the connection between the empirical and game theoretic modeling. To justify that the Banzhaf index is an appropriate tool to measure the influence of a condition, this paper discusses a novel axiomatization of the Banzhaf index that uses axioms that are directly linked to the QCA methodology. As a side result, we demonstrate that in our model the Banzhaf index can be reinterpreted as an average of Shapley-Shubik indices."}],"user_id":"20801","department":[{"_id":"205"},{"_id":"475"},{"_id":"185"}],"_id":"63731","language":[{"iso":"eng"}],"keyword":["Banzhaf index","axiomatization","QCA","explanatory power"]},{"page":"113904","intvolume":"       247","citation":{"chicago":"Itner, Dominik, Dmitrij Dreiling, Hauke Gravenkamp, Bernd Henning, and Carolin Birk. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i> 247 (2026): 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","ieee":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, and C. Birk, “A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses,” <i>Mechanical Systems and Signal Processing</i>, vol. 247, p. 113904, 2026, doi: <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","ama":"Itner D, Dreiling D, Gravenkamp H, Henning B, Birk C. A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>. 2026;247:113904. doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>","mla":"Itner, Dominik, et al. “A Modified Levenberg–Marquardt Method for Estimating the Elastic Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i>, vol. 247, 2026, p. 113904, doi:<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>.","short":"D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems and Signal Processing 247 (2026) 113904.","bibtex":"@article{Itner_Dreiling_Gravenkamp_Henning_Birk_2026, title={A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses}, volume={247}, DOI={<a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>}, journal={Mechanical Systems and Signal Processing}, author={Itner, Dominik and Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin}, year={2026}, pages={113904} }","apa":"Itner, D., Dreiling, D., Gravenkamp, H., Henning, B., &#38; Birk, C. (2026). A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses. <i>Mechanical Systems and Signal Processing</i>, <i>247</i>, 113904. <a href=\"https://doi.org/10.1016/j.ymssp.2026.113904\">https://doi.org/10.1016/j.ymssp.2026.113904</a>"},"publication_identifier":{"issn":["0888-3270"]},"publication_status":"published","doi":"https://doi.org/10.1016/j.ymssp.2026.113904","main_file_link":[{"open_access":"1","url":"https://www.sciencedirect.com/science/article/pii/S0888327026000610/pdfft?md5=16e8493b44527f4ab0a6d13f634a01c3&pid=1-s2.0-S0888327026000610-main.pdf"}],"volume":247,"author":[{"first_name":"Dominik","full_name":"Itner, Dominik","last_name":"Itner"},{"first_name":"Dmitrij","last_name":"Dreiling","full_name":"Dreiling, Dmitrij","id":"32616"},{"last_name":"Gravenkamp","full_name":"Gravenkamp, Hauke","first_name":"Hauke"},{"last_name":"Henning","full_name":"Henning, Bernd","id":"213","first_name":"Bernd"},{"full_name":"Birk, Carolin","last_name":"Birk","first_name":"Carolin"}],"oa":"1","date_updated":"2026-02-02T12:44:47Z","status":"public","type":"journal_article","department":[{"_id":"49"}],"user_id":"32616","_id":"63800","project":[{"name":"Vollständige Bestimmung der akustischen Materialparameter von Polymeren","_id":"89"}],"year":"2026","title":"A modified Levenberg–Marquardt method for estimating the elastic material parameters of polymer waveguides using residuals between autocorrelated frequency responses","date_created":"2026-01-29T08:53:42Z","abstract":[{"text":"In this contribution, we address the estimation of the frequency-dependent elastic parameters of polymers in the ultrasound range, which is formulated as an inverse problem. This inverse problem is implemented as a nonlinear regression-type optimization problem, in which the simulation signals are fitted to the measurement signals. These signals consist of displacement responses in waveguides, focusing on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate the optimization and reduce the number of model evaluations and wait times, we propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt method derived from a geometrical interpretation of the least-squares optimization problem. Second, we introduce an improved objective function based on the autocorrelated envelopes of the measurement and simulation signals. Given that this study primarily relies on simulation data to quantify optimization convergence, we aggregate the expected ranges of realistic material parameters and derive their distributions to ensure the reproducibility of optimizations with proper measurements. We demonstrate the effectiveness of our objective function modification and step adaptation for various materials with isotropic material symmetry by comparing them with the Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the total number of model evaluations, thereby shortening the time to identify the material parameters.","lang":"eng"}],"publication":"Mechanical Systems and Signal Processing","language":[{"iso":"eng"}],"keyword":["Material parameter estimation","Waveguide","Nonlinear optimization","Inverse problem","Least squares"]},{"publication":"Photonics","abstract":[{"lang":"eng","text":"Light-emitting diodes (LEDs) are becoming increasingly important across various sectors of the lighting industry and are being used more frequently. In the field of symbolic projection, research is increasingly focusing on implementing light modulation using energy-efficient, incoherent LEDs rather than lasers. Since light modulation in micro- and nano-optics is typically achieved through phase modulation, Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The objective of this article is to investigate different approaches for approximating incoherent monochromatic light sources within FDTD simulations. To this end, two approaches based on dipole sources are considered, as well as a method involving plane waves with modulated wavefronts based on Cosine–Fourier functions and a method based on the superposition of Gaussian beams. These methods are evaluated in terms of their accuracy using a two-dimensional double-slit configuration and are compared against a fully incoherent analytical reference."}],"language":[{"iso":"eng"}],"keyword":["tet_topic_opticalantenna","tet_topic_numerics","tet_topic_meta"],"issue":"2","quality_controlled":"1","year":"2026","date_created":"2026-02-02T07:18:03Z","publisher":"MDPI AG","title":"Approximating Incoherent Monochromatic Light Sources in FDTD Simulations","type":"journal_article","status":"public","department":[{"_id":"15"},{"_id":"230"},{"_id":"289"},{"_id":"623"},{"_id":"61"}],"user_id":"158","_id":"63827","article_type":"original","article_number":"128","publication_identifier":{"issn":["2304-6732"]},"publication_status":"published","intvolume":"        13","citation":{"apa":"Metzner, D., Potthoff, J., Zentgraf, T., &#38; Förstner, J. (2026). Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. <i>Photonics</i>, <i>13</i>(2), Article 128. <a href=\"https://doi.org/10.3390/photonics13020128\">https://doi.org/10.3390/photonics13020128</a>","bibtex":"@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>}, number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }","mla":"Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” <i>Photonics</i>, vol. 13, no. 2, 128, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>.","short":"D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026).","chicago":"Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations.” <i>Photonics</i> 13, no. 2 (2026). <a href=\"https://doi.org/10.3390/photonics13020128\">https://doi.org/10.3390/photonics13020128</a>.","ieee":"D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent Monochromatic Light Sources in FDTD Simulations,” <i>Photonics</i>, vol. 13, no. 2, Art. no. 128, 2026, doi: <a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>.","ama":"Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic Light Sources in FDTD Simulations. <i>Photonics</i>. 2026;13(2). doi:<a href=\"https://doi.org/10.3390/photonics13020128\">10.3390/photonics13020128</a>"},"volume":13,"author":[{"full_name":"Metzner, Dominik","last_name":"Metzner","first_name":"Dominik"},{"full_name":"Potthoff, Jens","last_name":"Potthoff","first_name":"Jens"},{"first_name":"Thomas","full_name":"Zentgraf, Thomas","id":"30525","orcid":"0000-0002-8662-1101","last_name":"Zentgraf"},{"first_name":"Jens","orcid":"0000-0001-7059-9862","last_name":"Förstner","id":"158","full_name":"Förstner, Jens"}],"oa":"1","date_updated":"2026-02-02T21:38:34Z","doi":"10.3390/photonics13020128","main_file_link":[{"url":"https://www.mdpi.com/2304-6732/13/2/128","open_access":"1"}]},{"title":"Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft","date_created":"2025-09-29T12:34:48Z","publisher":"wbv","year":"2026","quality_controlled":"1","language":[{"iso":"ger"}],"keyword":["Portfolioarbeit","portfolio work","vernetztes Wissen","knowledge networks","Beobachtung","naturalistic observation","Inhaltsanalyse","content analysis"],"abstract":[{"text":"Vernetztes Wissen ist ein zentrales Lernziel des Hochschulstudiums, insbesondere im interdisziplinär angelegten Studienfach Komparatistik. Um den Aufbau vernetzten Wissens bei Bachelorstudierenden der Komparatistik zu unterstützen, ist in diesem Projekt Portfolioarbeit eingesetzt worden, die als Methode selbsttätigen und selbstreflexiven Lernens geeignet erscheint, zur Auseinandersetzung mit Lerninhalten zu motivieren und zur Kompetenzentwicklung der Studierenden beizutragen. Mittels unstrukturierter Beobachtungen der Portfolioarbeit im Seminar sind inhaltliche Effekte und methodische Entwicklungen erfasst worden. Anhand anteilig quantitativer, überwiegend qualitativer Inhaltsanalysen der Portfolios sind konkrete Vernetzungen zwischen Lerninhalten ermittelt worden. Die Explorationsstudie zeigt veränderte Perspektiven und geweckte Interessen bei den Studierenden durch die Portfolioarbeit sowie vielfältige Kontextualisierungen, Vergleiche und Verknüpfungen in den Portfolios auf und bietet hierdurch einen möglichen Ansatzpunkt für strukturelle Empfehlungen für das Studienfach Komparatistik.","lang":"ger"},{"lang":"eng","text":"Knowledge networks are a central learning objective in higher education, especially in the inherently interdisciplinary discipline of comparative literary and cultural studies. To support the development of knowledge networks with undergraduate students of comparative literary and cultural studies, this project utilized portfolio work as a method of self-actuating and self-reflective learning suitable for motivating examinations of learning contents and contributing to students’ skill development. Using naturalistic observations of the portfolio work within the seminar, effects and developments were recorded. With partly quantitative, predominantly qualitative content analyses of the portfolios, concrete connections between learning contents were determined. The explorative study shows changed perspectives and peaked interests of the students because of portfolio work as well as diverse contextualisations, comparisons and connections in the portfolios, thus offering a possible starting point for structural recommendations for the discipline of comparative literary and cultural studies."}],"publication":"die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre","main_file_link":[{"url":"https://www.wbv.de/shop/Paderborner-Beitraege-2025-HSLT2601W","open_access":"1"}],"doi":"10.3278/HSL2606W","author":[{"last_name":"Hannebohm","id":"27419","full_name":"Hannebohm, Ronja","first_name":"Ronja"}],"volume":12,"oa":"1","date_updated":"2026-02-03T10:59:36Z","citation":{"apa":"Hannebohm, R. (2026). Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, <i>12</i>, 65–80. <a href=\"https://doi.org/10.3278/HSL2606W\">https://doi.org/10.3278/HSL2606W</a>","mla":"Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, vol. 12, wbv, 2026, pp. 65–80, doi:<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>.","bibtex":"@article{Hannebohm_2026, title={Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft}, volume={12}, DOI={<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>}, journal={die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre}, publisher={wbv}, author={Hannebohm, Ronja}, year={2026}, pages={65–80} }","short":"R. Hannebohm, die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre 12 (2026) 65–80.","ama":"Hannebohm R. Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>. 2026;12:65-80. doi:<a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>","chicago":"Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i> 12 (2026): 65–80. <a href=\"https://doi.org/10.3278/HSL2606W\">https://doi.org/10.3278/HSL2606W</a>.","ieee":"R. Hannebohm, “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und Kulturwissenschaft,” <i>die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre</i>, vol. 12, pp. 65–80, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2606W\">10.3278/HSL2606W</a>."},"intvolume":"        12","page":"65-80","publication_status":"published","publication_identifier":{"issn":["2199–8825"]},"article_type":"original","user_id":"27419","department":[{"_id":"116"}],"_id":"61463","status":"public","type":"journal_article"},{"title":"Proton-Conducting Sulfonated Periodic Mesoporous Organosilica","date_created":"2026-02-05T09:46:20Z","publisher":"MDPI AG","year":"2026","issue":"3","quality_controlled":"1","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"Proton exchange membranes (PEMs) are essential for fuel cells, yet conventional materials like Nafion suffer from humidity dependence and limited thermal stability. This study introduces sulfonated phenylene-bridged periodic mesoporous organosilicas (PMOs) as promising inorganic–organic hybrid PEMs, synthesized via surfactant-templating with varying alkyl chain lengths for different mesopore sizes. Post-synthetic functionalization involves nitration of phenylene moieties, reduction to amines, and ring-opening of propane or butane sultones to graft sulfonic acid groups via flexible spacers, achieving homogeneous distribution along pore walls. Post-functionalization is confirmed by powder X-ray diffraction (PXRD), revealing preserved 2D hexagonal p6mm ordering and phenylene stacking. N2 physisorption shows type IV isotherms with reduced pore volumes and pore sizes. 1H NMR is used to quantify functionalization degrees. Impedance spectroscopy on pressed pellets demonstrates proton conductivities up to 2 × 10−3 S cm−1 at 30 °C and 90% RH, depending on the functionalization degree, confirming sulfonic acid-mediated conduction."}],"publication":"Nanomaterials","doi":"10.3390/nano16030203","main_file_link":[{"open_access":"1"}],"volume":16,"author":[{"full_name":"Wagner, Tobias","last_name":"Wagner","first_name":"Tobias"},{"first_name":"Michael","last_name":"Tiemann","orcid":"0000-0003-1711-2722","id":"23547","full_name":"Tiemann, Michael"}],"oa":"1","date_updated":"2026-02-05T09:48:27Z","intvolume":"        16","citation":{"mla":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i>, vol. 16, no. 3, 203, MDPI AG, 2026, doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","short":"T. Wagner, M. Tiemann, Nanomaterials 16 (2026).","bibtex":"@article{Wagner_Tiemann_2026, title={Proton-Conducting Sulfonated Periodic Mesoporous Organosilica}, volume={16}, DOI={<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>}, number={3203}, journal={Nanomaterials}, publisher={MDPI AG}, author={Wagner, Tobias and Tiemann, Michael}, year={2026} }","apa":"Wagner, T., &#38; Tiemann, M. (2026). Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>, <i>16</i>(3), Article 203. <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>","ama":"Wagner T, Tiemann M. Proton-Conducting Sulfonated Periodic Mesoporous Organosilica. <i>Nanomaterials</i>. 2026;16(3). doi:<a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>","ieee":"T. Wagner and M. Tiemann, “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica,” <i>Nanomaterials</i>, vol. 16, no. 3, Art. no. 203, 2026, doi: <a href=\"https://doi.org/10.3390/nano16030203\">10.3390/nano16030203</a>.","chicago":"Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.” <i>Nanomaterials</i> 16, no. 3 (2026). <a href=\"https://doi.org/10.3390/nano16030203\">https://doi.org/10.3390/nano16030203</a>."},"publication_identifier":{"issn":["2079-4991"]},"publication_status":"published","article_number":"203","department":[{"_id":"35"},{"_id":"2"},{"_id":"307"}],"user_id":"23547","_id":"63883","status":"public","type":"journal_article"},{"volume":84,"author":[{"last_name":"Markewitz","full_name":"Markewitz, Friedrich","id":"67227","first_name":"Friedrich"}],"date_created":"2026-02-06T07:59:43Z","date_updated":"2026-02-06T07:59:49Z","oa":"1","main_file_link":[{"url":"https://www.degruyterbrill.com/document/doi/10.1515/zfal-2026-2009/html","open_access":"1"}],"title":"Langrezension zu James McElvennys 'Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg'","publication_status":"epub_ahead","intvolume":"        84","citation":{"apa":"Markewitz, F. (2026). Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” In <i>Zeitschrift für Angewandte Linguistik</i> (Vol. 84).","mla":"Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’” <i>Zeitschrift für Angewandte Linguistik</i>, vol. 84, 2026.","short":"F. Markewitz, Zeitschrift für Angewandte Linguistik 84 (2026).","bibtex":"@article{Markewitz_2026, title={Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg”}, volume={84}, journal={Zeitschrift für Angewandte Linguistik}, author={Markewitz, Friedrich}, year={2026} }","chicago":"Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’” <i>Zeitschrift für Angewandte Linguistik</i>, 2026.","ieee":"F. Markewitz, “Langrezension zu James McElvennys ‘Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg,’” <i>Zeitschrift für Angewandte Linguistik</i>, vol. 84. 2026.","ama":"Markewitz F. Langrezension zu James McElvennys “Entstehung und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” <i>Zeitschrift für Angewandte Linguistik</i>. 2026;84."},"year":"2026","user_id":"67227","_id":"63898","language":[{"iso":"ger"}],"publication":"Zeitschrift für Angewandte Linguistik","type":"review","status":"public"},{"author":[{"full_name":"Das, Pallabee","last_name":"Das","first_name":"Pallabee"},{"first_name":"Stefan","orcid":"0000-0002-4525-6865","last_name":"Heindorf","full_name":"Heindorf, Stefan","id":"11871"}],"date_created":"2026-02-06T18:44:34Z","publisher":"ACM","date_updated":"2026-02-06T18:47:38Z","oa":"1","main_file_link":[{"url":"https://arxiv.org/pdf/2508.08458","open_access":"1"}],"conference":{"name":"The Web Conference","start_date":"2026-04-13","end_date":"2026-04-17","location":"Dubai, United Arab Emirates"},"title":"Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features","citation":{"ama":"Das P, Heindorf S. Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features. In: <i>Proceedings of the ACM Web Conference 2026 (WWW ’26)</i>. ACM; 2026.","chicago":"Das, Pallabee, and Stefan Heindorf. “Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features.” In <i>Proceedings of the ACM Web Conference 2026 (WWW ’26)</i>. ACM, 2026.","ieee":"P. Das and S. Heindorf, “Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features,” presented at the The Web Conference, Dubai, United Arab Emirates, 2026.","apa":"Das, P., &#38; Heindorf, S. (2026). Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features. <i>Proceedings of the ACM Web Conference 2026 (WWW ’26)</i>. The Web Conference, Dubai, United Arab Emirates.","mla":"Das, Pallabee, and Stefan Heindorf. “Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features.” <i>Proceedings of the ACM Web Conference 2026 (WWW ’26)</i>, ACM, 2026.","bibtex":"@inproceedings{Das_Heindorf_2026, title={Discrete Diffusion-Based Model-Level Explanation of Heterogeneous GNNs with Node Features}, booktitle={Proceedings of the ACM Web Conference 2026 (WWW ’26)}, publisher={ACM}, author={Das, Pallabee and Heindorf, Stefan}, year={2026} }","short":"P. Das, S. Heindorf, in: Proceedings of the ACM Web Conference 2026 (WWW ’26), ACM, 2026."},"year":"2026","user_id":"11871","department":[{"_id":"760"}],"_id":"63918","external_id":{"arxiv":["2508.08458"]},"language":[{"iso":"eng"}],"type":"conference","publication":"Proceedings of the ACM Web Conference 2026 (WWW ’26)","status":"public","abstract":[{"lang":"eng","text":"Many real-world datasets, such as citation networks, social networks, and molecular structures, are naturally represented as heterogeneous graphs, where nodes belong to different types and have additional features. For example, in a citation network, nodes representing \"Paper\" or \"Author\" may include attributes like keywords or affiliations. A critical machine learning task on these graphs is node classification, which is useful for applications such as fake news detection, corporate risk assessment, and molecular property prediction. Although Heterogeneous Graph Neural Networks (HGNNs) perform well in these contexts, their predictions remain opaque. Existing post-hoc explanation methods lack support for actual node features beyond one-hot encoding of node type and often fail to generate realistic, faithful explanations. To address these gaps, we propose DiGNNExplainer, a model-level explanation approach that synthesizes heterogeneous graphs with realistic node features via discrete denoising diffusion. In particular, we generate realistic discrete features (e.g., bag-of-words features) using diffusion models within a discrete space, whereas previous approaches are limited to continuous spaces. We evaluate our approach on multiple datasets and show that DiGNNExplainer produces explanations that are realistic and faithful to the model's decision-making, outperforming state-of-the-art methods."}]},{"title":"Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität","main_file_link":[{"open_access":"1","url":"https://www.wbv.de/shop/Selbstgesteuertes-Lernen-Partizipation-und-das-4K-Modell.-Lehre-in-der-Kultur-der-Digitalitaet-HSL2602W"}],"doi":"10.3278/HSL2602W","date_updated":"2026-02-11T12:09:42Z","oa":"1","author":[{"full_name":" Hallmann, Nicole","last_name":" Hallmann","first_name":"Nicole"},{"first_name":"Marie","full_name":"Mahs, Marie","last_name":"Mahs"},{"first_name":"Lloyd-Spencer","full_name":"Grant , Lloyd-Spencer","last_name":"Grant "},{"last_name":"Baier","id":"68193","full_name":"Baier, Marla Ricarda","first_name":"Marla Ricarda"},{"first_name":"Alina Luisa","last_name":" Cerezo Alarcon","full_name":" Cerezo Alarcon, Alina Luisa"},{"full_name":"Kepper, Florian ","last_name":"Kepper","first_name":"Florian "},{"first_name":"Isabel","orcid":"https://orcid.org/0000-0002-2590-6189","last_name":"Steinhardt","full_name":"Steinhardt, Isabel","id":"90339"}],"date_created":"2026-01-27T16:18:34Z","year":"2026","citation":{"ama":"Hallmann N, Mahs M, Grant  L-S, et al. Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>die hochschullehre</i>. Published online 2026. doi:<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>","chicago":"Hallmann, Nicole, Marie Mahs, Lloyd-Spencer Grant , Marla Ricarda Baier, Alina Luisa  Cerezo Alarcon, Florian  Kepper, and Isabel Steinhardt. “Selbstgesteuertes Lernen, Partizipation Und Das 4K-Modell. Lehre in Der Kultur Der Digitalität.” <i>Die Hochschullehre</i>, 2026. <a href=\"https://doi.org/10.3278/HSL2602W\">https://doi.org/10.3278/HSL2602W</a>.","ieee":"N.  Hallmann <i>et al.</i>, “Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität,” <i>die hochschullehre</i>, 2026, doi: <a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>.","apa":"Hallmann, N., Mahs, M., Grant , L.-S., Baier, M. R.,  Cerezo Alarcon, A. L., Kepper, F., &#38; Steinhardt, I. (2026). Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>Die Hochschullehre</i>. <a href=\"https://doi.org/10.3278/HSL2602W\">https://doi.org/10.3278/HSL2602W</a>","mla":"Hallmann, Nicole, et al. “Selbstgesteuertes Lernen, Partizipation Und Das 4K-Modell. Lehre in Der Kultur Der Digitalität.” <i>Die Hochschullehre</i>, 2026, doi:<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>.","short":"N.  Hallmann, M. Mahs, L.-S. Grant , M.R. Baier, A.L.  Cerezo Alarcon, F. Kepper, I. Steinhardt, Die Hochschullehre (2026).","bibtex":"@article{ Hallmann_Mahs_Grant _Baier_ Cerezo Alarcon_Kepper_Steinhardt_2026, title={Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur der Digitalität}, DOI={<a href=\"https://doi.org/10.3278/HSL2602W\">10.3278/HSL2602W</a>}, journal={die hochschullehre}, author={ Hallmann, Nicole and Mahs, Marie and Grant , Lloyd-Spencer and Baier, Marla Ricarda and  Cerezo Alarcon, Alina Luisa and Kepper, Florian  and Steinhardt, Isabel}, year={2026} }"},"language":[{"iso":"eng"}],"_id":"63777","user_id":"68193","department":[{"_id":"477"}],"status":"public","type":"journal_article","publication":"die hochschullehre"},{"citation":{"ama":"Butzhammer L, Braun MRO, Herath C, Hausotte T. Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface. In: <i>E-Journal of Nondestructive Testing</i>. Vol 31. NDT.net GmbH &#38; Co. KG; 2026. doi:<a href=\"https://doi.org/10.58286/32560\">10.58286/32560</a>","chicago":"Butzhammer, Lorenz, Matthias Robert Oskar Braun, Colin Herath, and Tino Hausotte. “Higher Accuracy with Fewer Projections? Automated Scan Angle Selection for Dimensional Computed Tomography Based on a Simple Data Completeness Measure for the Part Surface.” In <i>E-Journal of Nondestructive Testing</i>, Vol. 31. NDT.net GmbH &#38; Co. KG, 2026. <a href=\"https://doi.org/10.58286/32560\">https://doi.org/10.58286/32560</a>.","ieee":"L. Butzhammer, M. R. O. Braun, C. Herath, and T. Hausotte, “Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface,” in <i>e-Journal of Nondestructive Testing</i>, Linz, 2026, vol. 31, no. 3, doi: <a href=\"https://doi.org/10.58286/32560\">10.58286/32560</a>.","mla":"Butzhammer, Lorenz, et al. “Higher Accuracy with Fewer Projections? Automated Scan Angle Selection for Dimensional Computed Tomography Based on a Simple Data Completeness Measure for the Part Surface.” <i>E-Journal of Nondestructive Testing</i>, vol. 31, no. 3, NDT.net GmbH &#38; Co. KG, 2026, doi:<a href=\"https://doi.org/10.58286/32560\">10.58286/32560</a>.","bibtex":"@inproceedings{Butzhammer_Braun_Herath_Hausotte_2026, title={Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface}, volume={31}, DOI={<a href=\"https://doi.org/10.58286/32560\">10.58286/32560</a>}, number={3}, booktitle={e-Journal of Nondestructive Testing}, publisher={NDT.net GmbH &#38; Co. KG}, author={Butzhammer, Lorenz and Braun, Matthias Robert Oskar and Herath, Colin and Hausotte, Tino}, year={2026} }","short":"L. Butzhammer, M.R.O. Braun, C. Herath, T. Hausotte, in: E-Journal of Nondestructive Testing, NDT.net GmbH &#38; Co. KG, 2026.","apa":"Butzhammer, L., Braun, M. R. O., Herath, C., &#38; Hausotte, T. (2026). Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface. <i>E-Journal of Nondestructive Testing</i>, <i>31</i>(3). <a href=\"https://doi.org/10.58286/32560\">https://doi.org/10.58286/32560</a>"},"intvolume":"        31","publication_status":"published","publication_identifier":{"issn":["1435-4934"]},"main_file_link":[{"url":"https://www.ndt.net/article/ctc2026/papers/ict26_Contribution_184.pdf","open_access":"1"}],"doi":"10.58286/32560","conference":{"name":"15th Conference on Industrial Computed Tomography (iCT)","location":"Linz"},"author":[{"first_name":"Lorenz","last_name":"Butzhammer","full_name":"Butzhammer, Lorenz"},{"full_name":"Braun, Matthias Robert Oskar","last_name":"Braun","first_name":"Matthias Robert Oskar"},{"first_name":"Colin","full_name":"Herath, Colin","last_name":"Herath"},{"first_name":"Tino","last_name":"Hausotte","full_name":"Hausotte, Tino"}],"volume":31,"oa":"1","date_updated":"2026-02-12T10:41:45Z","status":"public","type":"conference","user_id":"93720","department":[{"_id":"630"}],"project":[{"name":"TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen Prozessketten","_id":"130"},{"_id":"133","name":"TRR 285 - Project Area C"},{"name":"TRR 285 - Subproject C05","_id":"149"}],"_id":"64129","year":"2026","issue":"3","quality_controlled":"1","title":"Higher accuracy with fewer projections? Automated scan angle selection for dimensional Computed Tomography based on a simple data completeness measure for the part surface","date_created":"2026-02-12T10:11:08Z","publisher":"NDT.net GmbH & Co. KG","abstract":[{"lang":"eng","text":"<jats:p>Selecting scan angles such that surface segments are aligned with straight X-ray paths (i.e., rays are tangential to the surface and therefore perpendicular to the local surface normal) is known to produce sharper transitions of those surface segments in the reconstructed volume. This enhances dimensional accuracy in sparse-view computed tomography (CT). However, existing approaches offer no direct means to exploit this criterion for automatic scan-angle optimization. We propose a method that uses a virtual representation of the CT setup, including an STL surface model of the inspected part, to automatically identify taskspecific scan angles. Using elementary vector calculus, the algorithm determines projection directions that generate tangential X-rays for targeted surface segments. To support different levels of geometric complexity, we introduce two variants of the angle-selection procedure. The methods were experimentally validated on two objects with distinct absorption and geometric characteristics. For a steel gauge block, employing the minimum number of task-specific projections required for surface-data completeness substantially outperformed a conventional high-projection scan. For a geometrically more complex test object, surface-related errors were still reduced within the region of interest. The proposed approach – particularly suited for flat surface structures and not accounting for image-degrading factors other than cone-beam artifacts – shows promise for high-throughput dimensional metrology of mono-material parts.</jats:p>"}],"publication":"e-Journal of Nondestructive Testing","language":[{"iso":"eng"}]},{"citation":{"apa":"Scharf, C. H., Chandraraj, A., Dyk, K., Stebner, F., Lepin, S., Tian, J., El Bergmi Byaz, L., Stettner, J., Leppin, C., Kotova, A., Reinke, S., Linnemann, J., Maroun, F., &#38; Magnussen, O. M. (2026). Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts. <i>ACS Catalysis</i>, Article acscatal.5c08785. <a href=\"https://doi.org/10.1021/acscatal.5c08785\">https://doi.org/10.1021/acscatal.5c08785</a>","short":"C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun, O.M. Magnussen, ACS Catalysis (2026).","mla":"Scharf, Carl Hendric, et al. “Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts.” <i>ACS Catalysis</i>, acscatal.5c08785, American Chemical Society (ACS), 2026, doi:<a href=\"https://doi.org/10.1021/acscatal.5c08785\">10.1021/acscatal.5c08785</a>.","bibtex":"@article{Scharf_Chandraraj_Dyk_Stebner_Lepin_Tian_El Bergmi Byaz_Stettner_Leppin_Kotova_et al._2026, title={Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts}, DOI={<a href=\"https://doi.org/10.1021/acscatal.5c08785\">10.1021/acscatal.5c08785</a>}, number={acscatal.5c08785}, journal={ACS Catalysis}, publisher={American Chemical Society (ACS)}, author={Scharf, Carl Hendric and Chandraraj, Alex and Dyk, Konrad and Stebner, Felix and Lepin, Sören and Tian, Jing and El Bergmi Byaz, Laila and Stettner, Jochim and Leppin, Christian and Kotova, Anastasiia and et al.}, year={2026} }","ama":"Scharf CH, Chandraraj A, Dyk K, et al. Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts. <i>ACS Catalysis</i>. Published online 2026. doi:<a href=\"https://doi.org/10.1021/acscatal.5c08785\">10.1021/acscatal.5c08785</a>","chicago":"Scharf, Carl Hendric, Alex Chandraraj, Konrad Dyk, Felix Stebner, Sören Lepin, Jing Tian, Laila El Bergmi Byaz, et al. “Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts.” <i>ACS Catalysis</i>, 2026. <a href=\"https://doi.org/10.1021/acscatal.5c08785\">https://doi.org/10.1021/acscatal.5c08785</a>.","ieee":"C. H. Scharf <i>et al.</i>, “Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts,” <i>ACS Catalysis</i>, Art. no. acscatal.5c08785, 2026, doi: <a href=\"https://doi.org/10.1021/acscatal.5c08785\">10.1021/acscatal.5c08785</a>."},"publication_identifier":{"issn":["2155-5435","2155-5435"]},"publication_status":"published","doi":"10.1021/acscatal.5c08785","main_file_link":[{"open_access":"1","url":"https://pubs.acs.org/doi/10.1021/acscatal.5c08785"}],"oa":"1","date_updated":"2026-02-16T14:25:00Z","author":[{"first_name":"Carl Hendric","last_name":"Scharf","full_name":"Scharf, Carl Hendric"},{"first_name":"Alex","full_name":"Chandraraj, Alex","last_name":"Chandraraj"},{"full_name":"Dyk, Konrad","last_name":"Dyk","first_name":"Konrad"},{"first_name":"Felix","full_name":"Stebner, Felix","last_name":"Stebner"},{"first_name":"Sören","full_name":"Lepin, Sören","last_name":"Lepin"},{"full_name":"Tian, Jing","last_name":"Tian","first_name":"Jing"},{"full_name":"El Bergmi Byaz, Laila","last_name":"El Bergmi Byaz","first_name":"Laila"},{"full_name":"Stettner, Jochim","last_name":"Stettner","first_name":"Jochim"},{"full_name":"Leppin, Christian","id":"117722","last_name":"Leppin","first_name":"Christian"},{"full_name":"Kotova, Anastasiia","last_name":"Kotova","first_name":"Anastasiia"},{"id":"117727","full_name":"Reinke, Sebastian","last_name":"Reinke","first_name":"Sebastian"},{"last_name":"Linnemann","orcid":"0000-0001-6883-5424","full_name":"Linnemann, Julia","id":"116779","first_name":"Julia"},{"last_name":"Maroun","full_name":"Maroun, Fouad","first_name":"Fouad"},{"full_name":"Magnussen, Olaf M.","last_name":"Magnussen","first_name":"Olaf M."}],"status":"public","type":"journal_article","article_number":"acscatal.5c08785","article_type":"original","_id":"64182","department":[{"_id":"985"}],"user_id":"116779","year":"2026","quality_controlled":"1","title":"Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts","publisher":"American Chemical Society (ACS)","date_created":"2026-02-16T14:22:15Z","abstract":[{"text":"Overcoming the slow kinetics of the oxygen evolution reaction at the anode is a key challenge for the production of hydrogen via electrolysis. This reaction operates at very positive potentials, where the electrocatalyst is exposed to highly oxidative conditions and prone to potential-dependent transformation of the near-surface region. While substantial evidence for such surface restructuring exists, its extent and relevance for the catalyst’s activity are unclear. We address this topic for the case of Co3O4, one of the best-known electrocatalysts exhibiting surface restructuring, by studies of epitaxial (111)-ordered electrodeposited films with combined operando X-ray surface diffraction and absorption spectroscopy, electrochemical impedance spectroscopy, and electrochemical measurements on rotating disk electrodes. Comparison of the as-prepared and annealed state of the same samples, which both are stable even under long-term oxygen evolution conditions, provides clear insight into the role of surface defects. Our results show that defect-free annealed Co3O4(111) surfaces are structurally stable over a wide potential range and hydroxylate via adsorption at surface oxygen and Co sites. Potential-induced surface restructuring of the Co3O4 lattice occurs only in the presence of surface defects, leading to the formation of the well-known nanometer-thick oxyhydroxide skin layer. The presence of this skin layer promotes oxygen evolution at low overpotentials but results in higher Tafel slopes. As a result, highly ordered Co3O4(111) surfaces are more active at high current densities than defective Co3O4 surfaces that undergo surface restructuring. These results highlight that strategies for catalyst surface defect engineering need to be application-oriented.","lang":"eng"}],"publication":"ACS Catalysis","keyword":["electrocatalysis","oxygen evolution reaction","cobalt spinel","operando characterization"],"language":[{"iso":"eng"}]},{"abstract":[{"text":"Obwohl Förderpläne schon seit den 1990er Jahren umgesetzt werden, es mittlerweile recht viele Publikationen mit Beschreibungen des Konzepts Förderplanung gibt und diese in allen Bundesländern Deutschlands rechtlich für Schülerinnen und Schüler mit einem festgestellten Bedarf an sonderpädagogischer Unterstützung vorgeschrieben sind, gibt es recht wenige empirische Studien über die tatsächliche Umsetzung in der Praxis. Dieser Beitrag möchte die große Lücke schließen, indem die Praxis der Förderplanung an Allgemeinen Schulen und an Förderschulen in Form einer digitalen Befragung in NRW in den Blick genommen wird. Insbesondere die Frage, wie und in welcher Form Förderpläne erstellt, umgesetzt, evaluiert und fortgeschrieben werden, steht im Mittelpunkt dieser Studie. Zentrale Ergebnisse zeigen, dass Förderpläne zwar i.d.R. aufgrund der rechtlichen Vorschrift erstellt werden, aber auch für die Strukturierung des Förderprozesses fachlich-inhaltlich genutzt werden. Hierbei wird deutlich, dass von den Allgemeinen Schulen eher die Grundschulen Förderpläne auch im weiteren fachlichen Sinn nutzen. Es wird aber auch deutlich, dass einige der befragten Schulen Förderpläne gezielt nutzen, um ein Feststellungsverfahren zu eröffnen und Ressourcen zu generieren und Förderpläne damit auch defizitorientierter schreiben als im Falle der fachlichen und inhaltlichen Strukturierung von Förderprozessen.","lang":"ger"}],"file":[{"relation":"main_file","content_type":"application/pdf","file_size":871882,"file_name":"zfh_02.2026_neumann.pdf","file_id":"64190","access_level":"open_access","date_updated":"2026-02-18T08:46:35Z","date_created":"2026-02-18T08:44:45Z","creator":"pneu"}],"publication":"Zeitschrift für Heilpädagogik","keyword":["Sonderpädagogik","Inklusion","Sonderpädagogische Förderung","Förderplanung","Förderpläne","Kooperation"],"ddc":["370"],"language":[{"iso":"ger"}],"year":"2026","issue":"2","title":"Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen","date_created":"2026-02-17T20:36:44Z","status":"public","type":"journal_article","article_type":"original","file_date_updated":"2026-02-18T08:46:35Z","_id":"64189","department":[{"_id":"479"}],"user_id":"95559","intvolume":"        77","page":"61-74","citation":{"ama":"Neumann P, Bunte C, Melzer C. Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen. <i>Zeitschrift für Heilpädagogik</i>. 2026;77(2):61-74.","ieee":"P. Neumann, C. Bunte, and C. Melzer, “Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen,” <i>Zeitschrift für Heilpädagogik</i>, vol. 77, no. 2, pp. 61–74, 2026.","chicago":"Neumann, Phillip, Charline Bunte, and Conny Melzer. “Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen.” <i>Zeitschrift für Heilpädagogik</i> 77, no. 2 (2026): 61–74.","apa":"Neumann, P., Bunte, C., &#38; Melzer, C. (2026). Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen. <i>Zeitschrift für Heilpädagogik</i>, <i>77</i>(2), 61–74.","bibtex":"@article{Neumann_Bunte_Melzer_2026, title={Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen}, volume={77}, number={2}, journal={Zeitschrift für Heilpädagogik}, author={Neumann, Phillip and Bunte, Charline and Melzer, Conny}, year={2026}, pages={61–74} }","short":"P. Neumann, C. Bunte, C. Melzer, Zeitschrift für Heilpädagogik 77 (2026) 61–74.","mla":"Neumann, Phillip, et al. “Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen.” <i>Zeitschrift für Heilpädagogik</i>, vol. 77, no. 2, 2026, pp. 61–74."},"publication_identifier":{"issn":["0513-9066"]},"has_accepted_license":"1","publication_status":"published","date_updated":"2026-02-18T08:46:36Z","oa":"1","volume":77,"author":[{"last_name":"Neumann","full_name":"Neumann, Phillip","id":"95559","first_name":"Phillip"},{"first_name":"Charline","last_name":"Bunte","id":"70772","full_name":"Bunte, Charline"},{"first_name":"Conny","full_name":"Melzer, Conny","last_name":"Melzer"}]},{"has_accepted_license":"1","year":"2026","citation":{"chicago":"Lange, Felix, Niklas Niere, and Juraj Somorovsky. “Towards Automated DNS Censorship Circumvention,” 2026.","ieee":"F. Lange, N. Niere, and J. Somorovsky, “Towards Automated DNS Censorship Circumvention,” presented at the Free and Open Communications on the Internet, Virtual, 2026.","bibtex":"@inproceedings{Lange_Niere_Somorovsky_2026, title={Towards Automated DNS Censorship Circumvention}, author={Lange, Felix and Niere, Niklas and Somorovsky, Juraj}, year={2026} }","short":"F. Lange, N. Niere, J. Somorovsky, in: 2026.","mla":"Lange, Felix, et al. <i>Towards Automated DNS Censorship Circumvention</i>. 2026.","ama":"Lange F, Niere N, Somorovsky J. Towards Automated DNS Censorship Circumvention. In: ; 2026.","apa":"Lange, F., Niere, N., &#38; Somorovsky, J. (2026). <i>Towards Automated DNS Censorship Circumvention</i>. Free and Open Communications on the Internet, Virtual."},"oa":"1","date_updated":"2026-02-21T10:20:16Z","author":[{"id":"67893","full_name":"Lange, Felix","last_name":"Lange","first_name":"Felix"},{"last_name":"Niere","id":"63563","full_name":"Niere, Niklas","first_name":"Niklas"},{"last_name":"Somorovsky","orcid":"0000-0002-3593-7720","id":"83504","full_name":"Somorovsky, Juraj","first_name":"Juraj"}],"date_created":"2026-02-20T14:35:34Z","title":"Towards Automated DNS Censorship Circumvention","conference":{"end_date":"2026-02-19","location":"Virtual","name":"Free and Open Communications on the Internet","start_date":"2026-02-19"},"main_file_link":[{"open_access":"1","url":"https://www.petsymposium.org/foci/2026/foci-2026-0001.pdf"}],"type":"conference","abstract":[{"lang":"eng","text":"Censorship is employed by many governments and ISPs worldwide, with an increasing trend in recent years. One of the most censored protocols is DNS: censors target unencrypted and encrypted DNS to prevent clients from resolving the domain name of unwanted websites. Despite much research on DNS censorship, only a few tools can circumvent it.To support users affected by DNS censorship, we present DPYProxy-DNS, a DNS resolver that automatically detects and employs a working DNS censorship circumvention. We demonstrate the effectiveness of DPYProxy-DNS by automatically circumventing DNS censorship in China and Iran and analyzing DNS censorship mechanisms in these countries. Our analyses re veal that DNS censorship in Iran is ineffective against encrypted DNS. In China, DPYProxy-DNS revealed two consistently working circumvention techniques for unencrypted DNS: TCP segmentation for DNS over TCP and ignoring DNS responses injected by the Great Firewall of China (GFW). Our findings reveal varying levels of DNS censorship across different countries, underscoring the importance of the automated circumvention approach we provide with DPYProxy-DNS."}],"status":"public","file":[{"content_type":"application/pdf","relation":"main_file","date_updated":"2026-02-21T10:20:16Z","creator":"nniklas","date_created":"2026-02-20T14:34:05Z","file_size":775133,"file_name":"foci-2026-0001.pdf","access_level":"open_access","file_id":"64568"}],"_id":"64566","user_id":"63563","ddc":["006"],"file_date_updated":"2026-02-21T10:20:16Z","language":[{"iso":"eng"}]}]