[{"date_created":"2022-02-15T07:32:10Z","file":[{"date_created":"2022-07-04T12:33:18Z","creator":"sego","content_type":"application/pdf","file_id":"32322","file_size":183185,"access_level":"open_access","file_name":"ICSA_CR.pdf","date_updated":"2022-07-04T12:34:52Z","relation":"main_file"}],"department":[{"_id":"66"},{"_id":"534"}],"keyword":["continuous experimentation","model-driven","component-based software architectures","self-adaptation"],"type":"conference","publication":"Proceedings of the 18th International Conference on Software Architecture Companion ","abstract":[{"lang":"eng","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."}],"language":[{"iso":"eng"}],"doi":"10.1109/ICSA-C54293.2022.00011","author":[{"full_name":"Gottschalk, Sebastian","first_name":"Sebastian","last_name":"Gottschalk","id":"47208"},{"first_name":"Enes","last_name":"Yigitbas","orcid":"0000-0002-5967-833X","full_name":"Yigitbas, Enes","id":"8447"},{"full_name":"Engels, Gregor","last_name":"Engels","first_name":"Gregor","id":"107"}],"year":"2022","title":"Model-driven Continuous Experimentation on Component-based Software Architectures ","date_updated":"2022-07-04T12:34:53Z","oa":"1","citation":{"ama":"Gottschalk S, Yigitbas E, Engels G. Model-driven Continuous Experimentation on Component-based Software Architectures . In: Proceedings of the 18th International Conference on Software Architecture Companion . IEEE; 2022. doi:10.1109/ICSA-C54293.2022.00011","bibtex":"@inproceedings{Gottschalk_Yigitbas_Engels_2022, title={Model-driven Continuous Experimentation on Component-based Software Architectures }, DOI={10.1109/ICSA-C54293.2022.00011}, 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 .” Proceedings of the 18th International Conference on Software Architecture Companion , IEEE, 2022, doi:10.1109/ICSA-C54293.2022.00011.","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 Proceedings of the 18th International Conference on Software Architecture Companion . IEEE, 2022. https://doi.org/10.1109/ICSA-C54293.2022.00011.","apa":"Gottschalk, S., Yigitbas, E., & Engels, G. (2022). Model-driven Continuous Experimentation on Component-based Software Architectures . Proceedings of the 18th International Conference on Software Architecture Companion . 18th International Conference on Software Architecture , Hawaii. https://doi.org/10.1109/ICSA-C54293.2022.00011","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: 10.1109/ICSA-C54293.2022.00011."},"file_date_updated":"2022-07-04T12:34:52Z","project":[{"name":"SFB 901: SFB 901","_id":"1"},{"_id":"4","name":"SFB 901 - C: SFB 901 - Project Area C"},{"_id":"17","name":"SFB 901 - C5: SFB 901 - Subproject C5"}],"_id":"29842","publisher":"IEEE","ddc":["000"],"user_id":"47208","conference":{"location":"Hawaii","name":"18th International Conference on Software Architecture ","start_date":"2022-03-12","end_date":"2022-03-15"},"status":"public","has_accepted_license":"1"},{"citation":{"mla":"Caruso, Carina, and Andreas Seifert. “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?” Österreichische Religionspädagogische Forum, vol. 30, no. 1, Universitätsbibliothek Graz, 2022, pp. 239–60, doi:10.30:2022.1.14.","ama":"Caruso C, Seifert A. Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch? Österreichische Religionspädagogische Forum. 2022;30(1):239-260. doi:10.30:2022.1.14","bibtex":"@article{Caruso_Seifert_2022, title={ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?}, volume={30}, DOI={10.30:2022.1.14}, number={1}, journal={Österreichische Religionspädagogische Forum}, publisher={Universitätsbibliothek Graz}, author={Caruso, Carina and Seifert, Andreas}, year={2022}, pages={239–260} }","apa":"Caruso, C., & Seifert, A. (2022). Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch? Österreichische Religionspädagogische Forum, 30(1), 239–260. https://doi.org/10.30:2022.1.14","ieee":"C. Caruso and A. Seifert, “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?,” Österreichische Religionspädagogische Forum, vol. 30, no. 1, pp. 239–260, 2022, doi: 10.30:2022.1.14.","short":"C. Caruso, A. Seifert, Österreichische Religionspädagogische Forum 30 (2022) 239–260.","chicago":"Caruso, Carina, and Andreas Seifert. “ Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?” Österreichische Religionspädagogische Forum 30, no. 1 (2022): 239–60. https://doi.org/10.30:2022.1.14."},"status":"public","publisher":"Universitätsbibliothek Graz","_id":"35136","page":"239-260","volume":30,"user_id":"86519","publication":"Österreichische Religionspädagogische Forum","issue":"1","abstract":[{"text":"Im Zentrum dieses Beitrags stehen Ergebnisse der Messung pädagogischer Kompetenzen Studierender der Theologie, die das Praxissemester in Deutschland absolviert haben. Das bildungswissenschaftliche Wissen, Kompetenzselbsteinschätzungen und ihre Entwicklung sowie die Einschätzung der im Praxissemester erreichten Ziele Studierender werden dabei unter Berücksichtigung der Ausrichtung des Lehramtsstudiums auf eine Schulform betrachtet. Um die Ergebnisse der Messung bildungswissenschaftlichen Wissens und die der Messung von Kompetenzselbsteinschätzungen zu kontextualisieren (N = 304), wird zuerst die Relevanz des (bildungswissenschaftlichen) Wissens als Ausgangspunkt des Könnens herausgearbeitet. Daran anschließend werden Befunde zur schulformspezifischen Professionalisierung resümiert. Anschließend werden Hypothesen hergeleitet, die Anlage der Studie sowie die Testinstrumente vorge- stellt, die Ergebnisse präsentiert und diskutiert. Die Ergebnisse zeigen wider Erwarten, dass sich weder das bildungswissenschaftliche Wissen, die Kompetenzselbsteinschätzungen und ihre Entwicklung noch die Einschätzung der im Praxissemester erreichten Ziele angehender Lehrkräfte in Abhängigkeit der Schulformen unterscheiden. Die Diskussion bezieht sich u.a. auf die Struktur der Lehramtsstudiengänge, die Denkfiguren zur Entwicklung von Können und die Konzeption der Messinstrumente.\r\n","lang":"ger"},{"text":"The focus of this article are the results of the measurement of pedagogical competencies of students of theology who have completed an internship in Germany. The educational knowledge, competence self-assessments and their development as well as the assessment of the goals achieved by students in the internship are considered, taking into account the orientation of the teacher education course towards a school type. In order to contextualize the results of the measurement of educational knowledge and those of the survey of competence self-assessments (N = 304), ideas are shown how the relationship between knowledge and ability is constituted and findings on the type of school-specific professionalization are summarized. Subsequently, hypotheses are derived, the design of the study, the method and the test instruments are described, the results are presented and discussed. Contrary to expectations, the results show that neither the educational science knowledge, the competence self-assessments and their development nor the assessment of the goals achieved in the internship by pros- pective teachers differ depending on the type of school. The discussion relates to on the structure of the teacher training courses, the mental figures for the development of skills and the conception of the measuring instruments.\r\n","lang":"eng"}],"date_created":"2023-01-03T12:41:20Z","type":"journal_article","keyword":["Bildungswissenschaftliches Wissen","Kompetenzmessung","Kompetenzselbsteinschätzung","Praxissemester","Professionalisierung / competence measurement","competence self-assessment","educational knowledge","internship","professionalization"],"author":[{"id":"23123","full_name":"Caruso, Carina","first_name":"Carina","last_name":"Caruso"},{"full_name":"Seifert, Andreas","last_name":"Seifert","first_name":"Andreas"}],"publication_identifier":{"issn":["1018-1539"]},"title":" Inwiefern ist die Professionalisierung in Praxisphasen schulformspezifisch?","year":"2022","intvolume":" 30","date_updated":"2023-01-06T12:08:14Z","publication_status":"published","language":[{"iso":"ger"}],"alternative_title":["Ergebnisse der Messung pädagogischer Kompetenzen Studierender in Deutschland"],"doi":"10.30:2022.1.14"},{"date_created":"2023-01-03T12:45:09Z","type":"journal_article","keyword":["Bildungswissenschaftliches Wissen","Kompetenzmessung","Kompetenzselbsteinschätzung","Praxissemester","Professionalisierung / competence measurement","competence self-assessment","educational knowledge","internship","professionalization"],"issue":"1","publication":"Religionspädagogische Beiträge. Journal for Religion in Education ","abstract":[{"lang":"ger","text":"Im Zentrum dieses Beitrags stehen Ergebnisse der Messung pädagogischer Kompetenzen Studierender. Dabei werden sowohl das bildungswissenschaftliche Wissen als auch die Entwicklung der Kompe­tenzselbsteinschätzungen in den Bereichen Unterrichten, Erziehen, Beurteilen und Innovieren unter Berücksichtigung individueller Voraussetzungen (Alter, Geschlecht, Abiturnote, Bachelornote, Konfession) betrachtet. Um die Ergeb­nisse hinsichtlich ihrer Bedeutung für die Professionalisierung angehender Lehrkräfte diskutieren zu können, wird, den empirischen Erkenntnissen voranstehend, die Bedeutung von Wissen für berufliches Können herausgearbeitet. Daran anschließend werden Hypothesen hergeleitet, die Anlage der Studie sowie die Testinstrumente vorgestellt, die Ergebnisse präsentiert und diskutiert. Die Ergebnisse zeigen, dass die Abitur- und Bachelornote die Varianz hinsichtlich des pädagogischen Wissens aufklären, sich eine signifikante Entwicklung der Kompetenzselbsteinschätzungen angehender Lehrkräfte feststellen lässt, aber sich angehende Religionslehrkräfte kaum von anderen Studierenden unterscheiden. Die Diskussion nimmt u. a. Rückbezug auf die Denkfiguren zur Entwicklung berufli­chen Könnens und benennt Limitationen, die mit der Studie und Kompetenzmessungen verbunden sind. Daran schließt die Formulierung eines Ausblicks an. Der Beitrag zielt insbesondere darauf, repräsentative Ergebnisse der Kompetenzmessung zu präsentieren und dabei potenzielle Einflussfaktoren auf die studentische Kompetenzent­wicklung zu beleuchten. Ein dadurch angereichertes Konglomerat belastbarer Erkenntnisse zielt darauf, langfristig zur Ableitung lehrerbildungsdidaktischer Überlegungen herangezogen werden zu können, die die studentische Professionalisierung unterstützen."},{"text":"This paper focuses on the results of the measurement of pedagogical competences of students. In doing so, both the knowledge of the educational sciences and the development of competence self-assessments in the fields of teaching, education, assessment andinnovating are taken into account. The study makes use of the following individual requirements: age, sex, Abitur grade, Bachelor grade, Confession. In order to be able to discuss the re-sults regarding their importance for the professionalization of prospective teachers, the importance of knowledge for professional skills is highlighted, preceded by empirical findings. Subsequently, hypotheses are derived, the plan of the study as well as the test instruments are presented, the results presented and discussed. The results show that the Abitur and Bachelor grades clarify the variance in pedagogical knowledge, that there is a significant development in the competence self-assessments of prospective teachers, and that prospective religious teachers are not different from other students. The discussion takes into account, among other things, the ideas for the devel-opment of professional skills and identifies limitations associated with the study. This is followed by the formula-tion of an outlook. The main aim of the paper is to present representative results of the competence measurement and to examine potential influencing factors on student competence development. A conglomerate of resilient knowledge enriched by this aims to be used in the long term to derive teacher training didactic considerations that support student professionalization.","lang":"eng"}],"language":[{"iso":"ger"}],"doi":"10.20377/rpb-101","author":[{"id":"23123","first_name":"Carina","last_name":"Caruso","full_name":"Caruso, Carina"},{"first_name":"Andreas","last_name":"Seifert","full_name":"Seifert, Andreas"}],"publication_identifier":{"issn":["2750 - 3941"]},"year":"2022","title":"Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen","intvolume":" 45","date_updated":"2023-01-06T12:21:07Z","publication_status":"published","citation":{"mla":"Caruso, Carina, and Andreas Seifert. “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen.” Religionspädagogische Beiträge. Journal for Religion in Education , vol. 45, no. 1, University of Bamberg Press, 2022, pp. 3–15, doi:10.20377/rpb-101.","bibtex":"@article{Caruso_Seifert_2022, title={Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen}, volume={45}, DOI={10.20377/rpb-101}, number={1}, journal={Religionspädagogische Beiträge. Journal for Religion in Education }, publisher={University of Bamberg Press}, author={Caruso, Carina and Seifert, Andreas}, year={2022}, pages={3–15} }","ama":"Caruso C, Seifert A. Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen. Religionspädagogische Beiträge Journal for Religion in Education . 2022;45(1):3-15. doi:10.20377/rpb-101","ieee":"C. Caruso and A. Seifert, “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen,” Religionspädagogische Beiträge. Journal for Religion in Education , vol. 45, no. 1, pp. 3–15, 2022, doi: 10.20377/rpb-101.","apa":"Caruso, C., & Seifert, A. (2022). Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen. Religionspädagogische Beiträge. Journal for Religion in Education , 45(1), 3–15. https://doi.org/10.20377/rpb-101","short":"C. Caruso, A. Seifert, Religionspädagogische Beiträge. Journal for Religion in Education 45 (2022) 3–15.","chicago":"Caruso, Carina, and Andreas Seifert. “Pädagogische Kompetenz als Ausgangspunkt beruflichen Könnens!? Ergebnisse der Kompetenzmessung angehender Lehrkräfte unter Berücksichtigung individueller Voraussetzungen.” Religionspädagogische Beiträge. Journal for Religion in Education 45, no. 1 (2022): 3–15. https://doi.org/10.20377/rpb-101."},"publisher":"University of Bamberg Press","_id":"35137","page":"3-15","volume":45,"user_id":"86519","status":"public"},{"place":"St. John’s, Newfoundland and Labrador, Canada","quality_controlled":"1","citation":{"mla":"Schröer, Franz, and Claudia Tenberge. “How to Enable Pre-Service Teachers to Design Technological Teaching and Learning Inclusively? – On the Nature and Consideration of Basic Needs in Teacher Training.” PATT39 - PATT on the Edge Technology, Innovation and Education, edited by David Gill et al., 2022, pp. 49–57.","ama":"Schröer F, Tenberge C. How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training. In: Gill D, Tuff J, Kennedy T, Pendergast S, Jamil S, eds. PATT39 - PATT on the Edge Technology, Innovation and Education. PATT Proceedings. ; 2022:49-57.","bibtex":"@inproceedings{Schröer_Tenberge_2022, place={St. John’s, Newfoundland and Labrador, Canada}, series={PATT Proceedings}, title={How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training}, booktitle={PATT39 - PATT on the Edge Technology, Innovation and Education}, author={Schröer, Franz and Tenberge, Claudia}, editor={Gill, David and Tuff, Jim and Kennedy, Thomas and Pendergast, Shawn and Jamil, Sana}, year={2022}, pages={49–57}, collection={PATT Proceedings} }","apa":"Schröer, F., & Tenberge, C. (2022). How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training. In D. Gill, J. Tuff, T. Kennedy, S. Pendergast, & S. Jamil (Eds.), PATT39 - PATT on the Edge Technology, Innovation and Education (pp. 49–57).","ieee":"F. Schröer and C. Tenberge, “How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training,” in PATT39 - PATT on the Edge Technology, Innovation and Education, St. John’s, Newfoundland and Labrador, Canada, 2022, pp. 49–57.","short":"F. Schröer, C. Tenberge, in: D. Gill, J. Tuff, T. Kennedy, S. Pendergast, S. Jamil (Eds.), PATT39 - PATT on the Edge Technology, Innovation and Education, St. John’s, Newfoundland and Labrador, Canada, 2022, pp. 49–57.","chicago":"Schröer, Franz, and Claudia Tenberge. “How to Enable Pre-Service Teachers to Design Technological Teaching and Learning Inclusively? – On the Nature and Consideration of Basic Needs in Teacher Training.” In PATT39 - PATT on the Edge Technology, Innovation and Education, edited by David Gill, Jim Tuff, Thomas Kennedy, Shawn Pendergast, and Sana Jamil, 49–57. PATT Proceedings. St. John’s, Newfoundland and Labrador, Canada, 2022."},"editor":[{"full_name":"Gill, David","last_name":"Gill","first_name":"David"},{"full_name":"Tuff, Jim","last_name":"Tuff","first_name":"Jim"},{"first_name":"Thomas","last_name":"Kennedy","full_name":"Kennedy, Thomas"},{"last_name":"Pendergast","first_name":"Shawn","full_name":"Pendergast, Shawn"},{"last_name":"Jamil","first_name":"Sana","full_name":"Jamil, Sana"}],"user_id":"71764","_id":"40046","page":"49-57","conference":{"end_date":"2022-06-24","start_date":"2022-06-21","name":"PATT39 - PATT on the Edge Technology, Innovation and Education","location":"St. John’s, Newfoundland and Labrador, Canada"},"status":"public","department":[{"_id":"588"}],"type":"conference","keyword":["Inclusion","basic needs","pre-service teacher training","interest","self-efficacy"],"date_created":"2023-01-25T15:13:45Z","abstract":[{"lang":"eng","text":"Theoretical approaches to the transformation towards an inclusive educational system in Germany mostly agree on the involvement of developmental tasks in subject related research (Hinz, 2011). The common understanding of inclusion as a process geared towards equal participation of all children (Booth, 2012) requires a reflexive questioning of established values, attitudes and practices in order to develop inclusive subject related research, teacher training and teaching and learning (Pech & Schomaker, 2013). Among other things, this results in consequences for the design of pre- service teacher training. To a large extent, teacher education is driven by the promotion of central competencies, interests and self-efficacy (Baumert & Kunter, 2011). It aims towards the development and realisation of inclusive interdisciplinary science and social studies (‘Sachunterricht’) in primary education (Moser, 2018). In conjunction with largely acknowledged constructivist approaches to teaching and learning (Möller, 2001), the development of personality, the consideration of basic needs (Deci & Ryan, 1993) and promotion of individual potentials are repeatedly fundamentally represented in subject related and pedagogical considerations (Feuser, 1989; GDSU, 2013). Therefore, the aforementioned constructivist approach is connected to several certain key paradigms for teaching and learning processes (e.g., Vygotskij, 1978; Posner et al., 1982; van de Pol et al., 2010). In this regard, the nature of primary school students’ basic needs have empirically not been sufficiently studied yet. Theoretical frameworks from motivational psychology (Deci & Ryan, 1993) do not explicitly address how individual needs differ and how the diversity of needs can be included in joint-learning, multi-perspective technology education classes. The research project the present paper is part of aims to develop a research-based concept for the professionalisation of pre-service teachers in a seminar course. Therefore, the promotion of the pre- service teachers’ interests and self-efficacy expectations have been assessed in a pre-post research design with a control group visiting another course not related to technology education and inclusion. The present paper describes and discusses first results of the project and will give an outlook on subsequent developmental tasks."}],"publication":"PATT39 - PATT on the Edge Technology, Innovation and Education","series_title":"PATT Proceedings","language":[{"iso":"eng"}],"main_file_link":[{"url":"https://research.edgehill.ac.uk/ws/portalfiles/portal/50821651/patt39_proceedings_june_17_2022.pdf"}],"date_updated":"2023-01-25T15:13:57Z","publication_status":"published","author":[{"id":"71764","first_name":"Franz","last_name":"Schröer","full_name":"Schröer, Franz"},{"id":"67302","last_name":"Tenberge","first_name":"Claudia","full_name":"Tenberge, Claudia"}],"publication_identifier":{"unknown":["https://research.edgehill.ac.uk/ws/portalfiles/portal/50821651/patt39_proceedings_june_17_2022.pdf"]},"title":"How to enable pre-service teachers to design technological teaching and learning inclusively? – On the nature and consideration of basic needs in teacher training","year":"2022"},{"publication":"European Journal of Information Systems","citation":{"chicago":"Constantiou, Ioanna, Alivelu Mukkamala, Mimmi Sjöklint, and Matthias Trier. “Engaging with Self-Tracking Applications: How Do Users Respond to Their Performance Data?” European Journal of Information Systems, 2022, 1–21. https://doi.org/10.1080/0960085x.2022.2081096.","short":"I. Constantiou, A. Mukkamala, M. Sjöklint, M. Trier, European Journal of Information Systems (2022) 1–21.","ama":"Constantiou I, Mukkamala A, Sjöklint M, Trier M. Engaging with self-tracking applications: how do users respond to their performance data? European Journal of Information Systems. Published online 2022:1-21. doi:10.1080/0960085x.2022.2081096","bibtex":"@article{Constantiou_Mukkamala_Sjöklint_Trier_2022, title={Engaging with self-tracking applications: how do users respond to their performance data?}, DOI={10.1080/0960085x.2022.2081096}, journal={European Journal of Information Systems}, publisher={Informa UK Limited}, author={Constantiou, Ioanna and Mukkamala, Alivelu and Sjöklint, Mimmi and Trier, Matthias}, year={2022}, pages={1–21} }","apa":"Constantiou, I., Mukkamala, A., Sjöklint, M., & Trier, M. (2022). Engaging with self-tracking applications: how do users respond to their performance data? European Journal of Information Systems, 1–21. https://doi.org/10.1080/0960085x.2022.2081096","mla":"Constantiou, Ioanna, et al. “Engaging with Self-Tracking Applications: How Do Users Respond to Their Performance Data?” European Journal of Information Systems, Informa UK Limited, 2022, pp. 1–21, doi:10.1080/0960085x.2022.2081096.","ieee":"I. Constantiou, A. Mukkamala, M. Sjöklint, and M. Trier, “Engaging with self-tracking applications: how do users respond to their performance data?,” European Journal of Information Systems, pp. 1–21, 2022, doi: 10.1080/0960085x.2022.2081096."},"type":"journal_article","keyword":["Library and Information Sciences","Information Systems","Self-Tracking","User Behaviour","Discontinuance"],"department":[{"_id":"195"}],"date_created":"2023-01-11T12:13:54Z","date_updated":"2023-01-29T23:05:59Z","publication_status":"published","title":"Engaging with self-tracking applications: how do users respond to their performance data?","status":"public","year":"2022","author":[{"last_name":"Constantiou","first_name":"Ioanna","full_name":"Constantiou, Ioanna"},{"last_name":"Mukkamala","first_name":"Alivelu","full_name":"Mukkamala, Alivelu"},{"first_name":"Mimmi","last_name":"Sjöklint","full_name":"Sjöklint, Mimmi"},{"id":"72744","first_name":"Matthias","last_name":"Trier","full_name":"Trier, Matthias"}],"publication_identifier":{"issn":["0960-085X","1476-9344"]},"doi":"10.1080/0960085x.2022.2081096","user_id":"14931","page":"1-21","language":[{"iso":"eng"}],"_id":"36083","publisher":"Informa UK Limited"},{"status":"public","has_accepted_license":"1","page":"74-91","_id":"34614","ddc":["040"],"user_id":"33185","volume":6,"file_date_updated":"2022-12-20T14:23:57Z","citation":{"ieee":"F. M. Schloots, “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker,” ffk Journal, vol. 6, no. 7, pp. 74–91, 2022, doi: 10.25969/MEDIAREP/18238.","apa":"Schloots, F. M. (2022). ‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker. ffk Journal, 6(7), 74–91. https://doi.org/10.25969/MEDIAREP/18238","short":"F.M. Schloots, ffk Journal 6 (2022) 74–91.","chicago":"Schloots, Franziska Margarete. “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker.” ffk Journal 6, no. 7 (2022): 74–91. https://doi.org/10.25969/MEDIAREP/18238.","mla":"Schloots, Franziska Margarete. “‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker.” ffk Journal, vol. 6, no. 7, 2022, pp. 74–91, doi:10.25969/MEDIAREP/18238.","bibtex":"@article{Schloots_2022, title={‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker}, volume={6}, DOI={10.25969/MEDIAREP/18238}, number={7}, journal={ffk Journal}, author={Schloots, Franziska Margarete}, year={2022}, pages={74–91} }","ama":"Schloots FM. ‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker. ffk Journal. 2022;6(7):74-91. doi:10.25969/MEDIAREP/18238"},"title":"‚Understand what’s happening within‘. Selbstkontrolle mit Personenwaage, Wearable und habit tracker","year":"2022","author":[{"full_name":"Schloots, Franziska Margarete","orcid":"0009-0008-9673-2615","first_name":"Franziska Margarete","last_name":"Schloots","id":"33185"}],"date_updated":"2024-11-22T10:09:55Z","publication_status":"published","intvolume":" 6","article_type":"original","language":[{"iso":"ger"}],"doi":"10.25969/MEDIAREP/18238","issue":"7","publication":"ffk Journal","abstract":[{"text":"Mit steigenden Optimierungsanforderungen an das Individuum wächst auch das indivi-\r\nduelle Bedürfnis nach Kontrolle. Dieses kann u. a. durch self tracking-Technologien erfüllt werden.\r\nAnhand von drei Fallbeispielen – der Personenwaage, dem Wearable und dem habit tracker – zeigt\r\ndieser Aufsatz, wie sich medienbasierte Selbsttechnologien im historischen Verlauf intensiviert und\r\nstärker in den Alltag integriert haben. Ein besonderer Fokus liegt dabei auf der Ambivalenz dieser\r\nMedien: Ermöglichen sie auf der einen Seite zwar eine Selbstkontrolle und stellen so potenziell sta-\r\nbilisierende Ressourcen für das Individuum dar, schaffen sie auf der anderen Seite auch neue\r\nAnforderungen, die es zu erfüllen gilt.","lang":"ger"}],"file":[{"creator":"fms","date_created":"2022-12-20T14:23:57Z","relation":"main_file","date_updated":"2022-12-20T14:23:57Z","file_name":"ffk_journal_07_74-91_Schloots_Selbstkontrolle_.pdf","file_size":530069,"access_level":"closed","file_id":"34616","success":1,"content_type":"application/pdf"}],"date_created":"2022-12-20T14:20:56Z","keyword":["self-tracking","Selbsttechnologien","Wearable","Bullet Journal","Personenwaage","Selbstvermessung"],"type":"journal_article","department":[{"_id":"574"}]},{"project":[{"name":"SFB 901","_id":"1"},{"name":"SFB 901 - Project Area C","_id":"4"},{"name":"SFB 901 - Subproject C4","_id":"16"}],"file_date_updated":"2021-04-27T08:01:26Z","citation":{"mla":"Schneider, Stefan Balthasar, et al. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” Transactions on Network and Service Management, IEEE, 2021, doi:10.1109/TNSM.2021.3076503.","ama":"Schneider SB, Khalili R, Manzoor A, et al. Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. Transactions on Network and Service Management. 2021. doi:10.1109/TNSM.2021.3076503","bibtex":"@article{Schneider_Khalili_Manzoor_Qarawlus_Schellenberg_Karl_Hecker_2021, title={Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning}, DOI={10.1109/TNSM.2021.3076503}, journal={Transactions on Network and Service Management}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Khalili, Ramin and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Hecker, Artur}, year={2021} }","apa":"Schneider, S. B., Khalili, R., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., & Hecker, A. (2021). Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning. Transactions on Network and Service Management. https://doi.org/10.1109/TNSM.2021.3076503","ieee":"S. B. Schneider et al., “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning,” Transactions on Network and Service Management, 2021.","chicago":"Schneider, Stefan Balthasar, Ramin Khalili, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, and Artur Hecker. “Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning.” Transactions on Network and Service Management, 2021. https://doi.org/10.1109/TNSM.2021.3076503.","short":"S.B. Schneider, R. Khalili, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, A. Hecker, Transactions on Network and Service Management (2021)."},"oa":"1","has_accepted_license":"1","status":"public","ddc":["000"],"user_id":"35343","publisher":"IEEE","_id":"21808","abstract":[{"text":"Modern services consist of interconnected components,e.g., microservices in a service mesh or machine learning functions in a pipeline. These services can scale and run across multiple network nodes on demand. To process incoming traffic, service components have to be instantiated and traffic assigned to these instances, taking capacities, changing demands, and Quality of Service (QoS) requirements into account. This challenge is usually solved with custom approaches designed by experts. While this typically works well for the considered scenario, the models often rely on unrealistic assumptions or on knowledge that is not available in practice (e.g., a priori knowledge).\r\n\r\nWe propose DeepCoord, a novel deep reinforcement learning approach that learns how to best coordinate services and is geared towards realistic assumptions. It interacts with the network and relies on available, possibly delayed monitoring information. Rather than defining a complex model or an algorithm on how to achieve an objective, our model-free approach adapts to various objectives and traffic patterns. An agent is trained offline without expert knowledge and then applied online with minimal overhead. Compared to a state-of-the-art heuristic, DeepCoord significantly improves flow throughput (up to 76%) and overall network utility (more than 2x) on realworld network topologies and traffic traces. It also supports optimizing multiple, possibly competing objectives, learns to respect QoS requirements, generalizes to scenarios with unseen, stochastic traffic, and scales to large real-world networks. For reproducibility and reuse, our code is publicly available.","lang":"eng"}],"publication":"Transactions on Network and Service Management","type":"journal_article","keyword":["network management","service management","coordination","reinforcement learning","self-learning","self-adaptation","multi-objective"],"department":[{"_id":"75"}],"file":[{"description":"Author version of the accepted paper","date_created":"2021-04-27T08:01:26Z","creator":"stschn","content_type":"application/pdf","file_id":"21809","date_updated":"2021-04-27T08:01:26Z","relation":"main_file","file_size":4172270,"access_level":"open_access","file_name":"ris-accepted-version.pdf"}],"date_created":"2021-04-27T08:04:16Z","date_updated":"2022-01-06T06:55:15Z","article_type":"original","year":"2021","title":"Self-Learning Multi-Objective Service Coordination Using Deep Reinforcement Learning","author":[{"full_name":"Schneider, Stefan Balthasar","last_name":"Schneider","first_name":"Stefan Balthasar","orcid":"0000-0001-8210-4011","id":"35343"},{"last_name":"Khalili","first_name":"Ramin","full_name":"Khalili, Ramin"},{"last_name":"Manzoor","first_name":"Adnan","full_name":"Manzoor, Adnan"},{"last_name":"Qarawlus","first_name":"Haydar","full_name":"Qarawlus, Haydar"},{"full_name":"Schellenberg, Rafael","last_name":"Schellenberg","first_name":"Rafael"},{"full_name":"Karl, Holger","last_name":"Karl","first_name":"Holger","id":"126"},{"first_name":"Artur","last_name":"Hecker","full_name":"Hecker, Artur"}],"doi":"10.1109/TNSM.2021.3076503","language":[{"iso":"eng"}]},{"_id":"33854","language":[{"iso":"eng"}],"user_id":"477","ddc":["004"],"author":[{"id":"35343","full_name":"Schneider, Stefan Balthasar","first_name":"Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011"},{"id":"126","last_name":"Karl","first_name":"Holger","full_name":"Karl, Holger"},{"last_name":"Khalili","first_name":"Ramin","full_name":"Khalili, Ramin"},{"full_name":"Hecker, Artur","last_name":"Hecker","first_name":"Artur"}],"year":"2021","status":"public","title":"DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning","has_accepted_license":"1","date_updated":"2022-11-18T09:59:27Z","date_created":"2022-10-20T16:44:19Z","file":[{"content_type":"application/pdf","file_id":"33855","date_updated":"2022-10-20T16:41:10Z","relation":"main_file","access_level":"open_access","file_size":2521656,"file_name":"preprint.pdf","date_created":"2022-10-20T16:41:10Z","creator":"stschn"}],"department":[{"_id":"75"}],"oa":"1","type":"working_paper","keyword":["mobility management","coordinated multipoint","CoMP","cell selection","resource management","reinforcement learning","multi agent","MARL","self-learning","self-adaptation","QoE"],"citation":{"bibtex":"@book{Schneider_Karl_Khalili_Hecker_2021, title={DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning}, author={Schneider, Stefan Balthasar and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2021} }","ama":"Schneider SB, Karl H, Khalili R, Hecker A. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning.; 2021.","mla":"Schneider, Stefan Balthasar, et al. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning. 2021.","chicago":"Schneider, Stefan Balthasar, Holger Karl, Ramin Khalili, and Artur Hecker. DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","short":"S.B. Schneider, H. Karl, R. Khalili, A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning, 2021.","ieee":"S. B. Schneider, H. Karl, R. Khalili, and A. Hecker, DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning. 2021.","apa":"Schneider, S. B., Karl, H., Khalili, R., & Hecker, A. (2021). DeepCoMP: Coordinated Multipoint Using Multi-Agent Deep Reinforcement Learning."},"file_date_updated":"2022-10-20T16:41:10Z","project":[{"name":"SFB 901 - C: SFB 901 - Project Area C","_id":"4"},{"_id":"16","name":"SFB 901 - C4: SFB 901 - Subproject C4"},{"name":"SFB 901: SFB 901","_id":"1"}],"abstract":[{"lang":"eng","text":"Macrodiversity is a key technique to increase the capacity of mobile networks. It can be realized using coordinated multipoint (CoMP), simultaneously connecting users to multiple overlapping cells. Selecting which users to serve by how many and which cells is NP-hard but needs to happen continuously in real time as users move and channel state changes. Existing approaches often require strict assumptions about or perfect knowledge of the underlying radio system, its resource allocation scheme, or user movements, none of which is readily available in practice.\r\n\r\nInstead, we propose three novel self-learning and self-adapting approaches using model-free deep reinforcement learning (DRL): DeepCoMP, DD-CoMP, and D3-CoMP. DeepCoMP leverages central observations and control of all users to select cells almost optimally. DD-CoMP and D3-CoMP use multi-agent DRL, which allows distributed, robust, and highly scalable coordination. All three approaches learn from experience and self-adapt to varying scenarios, reaching 2x higher Quality of Experience than other approaches. They have very few built-in assumptions and do not need prior system knowledge, making them more robust to change and better applicable in practice than existing approaches."}]},{"publication":"Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.","abstract":[{"text":"Self-piercing riveting is an established technique for joining multi-material structures in car body manufacturing. Rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and their surface condition. To shorten the manufacturing process by omitting the heat treatment and the coating process, the authors have elaborated a concept for the use of stainless steel with high strain hardening as a rivet material. The focus of the present investigation is on the evaluation of the influences of the rivet’s geometry and material on its deformation behaviour. Conventional rivets of types P and HD2, a rivet with an improved geometry made of treatable steel 38B2, and rivets made of the stainless steels 1.3815 and 1.4541 are examined. The analysis is conducted by means of multi-step joining tests for two material combinations comprising high-strength steel HCT70X and aluminium EN AW-5083. The joints are cut to provide a cross-section and the deformation behaviour of the different rivets is analysed on the basis of the measured changes in geometry and hardness. In parallel, an examination of the force-stroke curves provides further insights. It can be demonstrated that, besides the geometry, the material strength, in particular, has a significant influence on the deformation behaviour of the rivet. The strength of steel 1.4541 is seen to be too low for the joining task, while the strength of steel 1.3815 is sufficient, and hence the investigation confirms the capability of rivets made of 1.3815 for joining even challenging material combinations.","lang":"eng"}],"date_created":"2021-08-04T14:02:32Z","department":[{"_id":"157"}],"type":"book_chapter","keyword":["Self-piercing riveting","Lightweight design","Deformation behaviour","Stainless steel","High nitrogen steel"],"author":[{"full_name":"Uhe, Benedikt","first_name":"Benedikt","last_name":"Uhe","id":"38131"},{"first_name":"Clara-Maria","last_name":"Kuball","full_name":"Kuball, Clara-Maria"},{"full_name":"Merklein, Marion","last_name":"Merklein","first_name":"Marion"},{"first_name":"Gerson","orcid":"0000-0002-2763-1246","last_name":"Meschut","full_name":"Meschut, Gerson","id":"32056"}],"year":"2021","title":"Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening","publication_status":"published","date_updated":"2026-02-27T10:40:39Z","language":[{"iso":"eng"}],"doi":"10.1007/978-3-030-75381-8_124","citation":{"mla":"Uhe, Benedikt, et al. “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening.” Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series., edited by Glenn Daehn et al., Springer, 2021, pp. 1495–506, doi:10.1007/978-3-030-75381-8_124.","bibtex":"@inbook{Uhe_Kuball_Merklein_Meschut_2021, place={Cham}, title={Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening}, DOI={10.1007/978-3-030-75381-8_124}, booktitle={Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series.}, publisher={Springer}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, editor={Daehn, Glenn and Cao, Jian and Kinsey, Brad and Tekkaya, Erman and Vivek, Anupam and Yoshida, Yoshinori}, year={2021}, pages={1495–1506} }","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening. In: Daehn G, Cao J, Kinsey B, Tekkaya E, Vivek A, Yoshida Y, eds. Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series. Springer; 2021:1495-1506. doi:10.1007/978-3-030-75381-8_124","ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening,” in Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series., G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, and Y. Yoshida, Eds. Cham: Springer, 2021, pp. 1495–1506.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2021). Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening. In G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, & Y. Yoshida (Eds.), Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series. (pp. 1495–1506). Springer. https://doi.org/10.1007/978-3-030-75381-8_124","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: G. Daehn, J. Cao, B. Kinsey, E. Tekkaya, A. Vivek, Y. Yoshida (Eds.), Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series., Springer, Cham, 2021, pp. 1495–1506.","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Self-Piercing Riveting Using Rivets Made of Stainless Steel with High Strain Hardening.” In Forming the Future - Proceedings of the 13th International Conference on the Technology of Plasticity. The Minerals, Metals & Materials Series., edited by Glenn Daehn, Jian Cao, Brad Kinsey, Erman Tekkaya, Anupam Vivek, and Yoshinori Yoshida, 1495–1506. Cham: Springer, 2021. https://doi.org/10.1007/978-3-030-75381-8_124."},"quality_controlled":"1","place":"Cham","status":"public","publisher":"Springer","_id":"22930","page":"1495-1506","editor":[{"last_name":"Daehn","first_name":"Glenn","full_name":"Daehn, Glenn"},{"first_name":"Jian","last_name":"Cao","full_name":"Cao, Jian"},{"first_name":"Brad","last_name":"Kinsey","full_name":"Kinsey, Brad"},{"full_name":"Tekkaya, Erman","last_name":"Tekkaya","first_name":"Erman"},{"full_name":"Vivek, Anupam","last_name":"Vivek","first_name":"Anupam"},{"full_name":"Yoshida, Yoshinori","first_name":"Yoshinori","last_name":"Yoshida"}],"user_id":"53912"},{"type":"conference","keyword":["Self-piercing Riveting","Joining Technology","Rivet Geometry","Rivet Material","High Nitrogen Steel","Joint Strength"],"department":[{"_id":"157"}],"date_created":"2021-05-31T10:17:37Z","abstract":[{"lang":"eng","text":"The use of high-strength steel and aluminium is rising due to the intensified efforts being made in lightweight design, and self-piercing riveting is becoming increasingly important. Conventional rivets for self-piercing riveting differ in their geometry, the material used, the condition of the material and the coating. To shorten the manufacturing process, the use of stainless steel with high strain hardening as the rivet material represents a promising approach. This allows the coating of the rivets to be omitted due to the corrosion resistance of the material and, since the strength of the stainless steel is achieved by cold forming, heat treatment is no longer required. In addition, it is possible to adjust the local strength within the rivet. Because of that, the authors have elaborated a concept for using high nitrogen steel 1.3815 as the rivet material. The present investigation focusses on the joint strength in order to evaluate the capability of rivets in high nitrogen steel by comparison to conventional rivets made of treatable steel. Due to certain challenges in the forming process of the high nitrogen steel rivets, deviations result from the targeted rivet geometry. Mainly these deviations cause a lower joint strength with these rivets, which is, however, adequate. All in all, the capability of the new rivet is proven by the results of this investigation. "}],"quality_controlled":"1","citation":{"ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel,” presented at the 24th International Conference on Material Forming (ESAFORM), Liège, Belgien, 2021, doi: 10.25518/esaform21.1911.","mla":"Uhe, Benedikt, et al. Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets Made of High Nitrogen Steel. 2021, doi:10.25518/esaform21.1911.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2021). Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel. 24th International Conference on Material Forming (ESAFORM), Liège, Belgien. https://doi.org/10.25518/esaform21.1911","bibtex":"@inproceedings{Uhe_Kuball_Merklein_Meschut_2021, title={Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel}, DOI={10.25518/esaform21.1911}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2021} }","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel. In: ; 2021. doi:10.25518/esaform21.1911","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, in: 2021.","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Strength of Self-Piercing Riveted Joints with Conventional Rivets and Rivets Made of High Nitrogen Steel,” 2021. https://doi.org/10.25518/esaform21.1911."},"doi":"10.25518/esaform21.1911","user_id":"53912","language":[{"iso":"eng"}],"_id":"22274","date_updated":"2026-02-27T10:25:13Z","title":"Strength of self-piercing riveted Joints with conventional Rivets and Rivets made of High Nitrogen Steel","year":"2021","status":"public","conference":{"name":"24th International Conference on Material Forming (ESAFORM)","start_date":"2021-04-14","location":"Liège, Belgien","end_date":"2021-04-16"},"author":[{"full_name":"Uhe, Benedikt","first_name":"Benedikt","last_name":"Uhe","id":"38131"},{"last_name":"Kuball","first_name":"Clara-Maria","full_name":"Kuball, Clara-Maria"},{"full_name":"Merklein, Marion","first_name":"Marion","last_name":"Merklein"},{"id":"32056","orcid":"0000-0002-2763-1246","first_name":"Gerson","last_name":"Meschut","full_name":"Meschut, Gerson"}]},{"issue":"2","publication":"Learning Environments Research","abstract":[{"lang":"eng","text":"With the rapid progress of technological development, self-efficacy in reference to digital devices (i.e., information and computer technology [ICT] self-efficacy) is an important driver that helps students to deal with technological problems and support their lifelong learning processes. Schools, peers, and home learning environments are important sources for the development of positive self-efficacy. Expanding on previous research, we investigated the associations between different aspects of the digital home learning environment and students’ ICT self-efficacy. The moderation effects of gender were also tested. A total of 651 children answered a questionnaire about different digital home learning environment dimensions and estimated their ICT self-efficacy using an adapted scale—Schwarzer and Jerusalem’s (1999) general self-efficacy scale. Using the structural equation modeling technique, a digital home learning environment containing six different qualities of parental support was investigated. Families’ cultural capital, parents’ attitudes toward the Internet, and shared Internet activities at home contributed positively to ICT self-efficacy. We observed small gender differences, with the moderation effect being nonsignificant. The results help researchers and practitioners to understand how different dimensions of the digital home learning environment support ICT self-efficacy. We will discuss how parents can enhance the home learning environment and how teachers can integrate this knowledge into formal education."}],"date_created":"2022-08-03T05:53:48Z","type":"journal_article","keyword":["Digital media use","Gender","Home learning environment","ICT self-efcacy","Motivation","Parental involvement"],"department":[{"_id":"427"}],"year":"2021","title":"The digital home learning environment and its relation to children’s ICT self-efficacy","author":[{"last_name":"Bonanati","first_name":"Sabrina","full_name":"Bonanati, Sabrina"},{"id":"27152","full_name":"Buhl, Heike M.","last_name":"Buhl","first_name":"Heike M."}],"publication_identifier":{"issn":["1387-1579","1573-1855"]},"publication_status":"published","date_updated":"2025-07-16T08:38:51Z","intvolume":" 25","main_file_link":[{"url":"https://link.springer.com/content/pdf/10.1007/s10984-021-09377-8.pdf","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1007/s10984-021-09377-8","citation":{"mla":"Bonanati, Sabrina, and Heike M. Buhl. “The Digital Home Learning Environment and Its Relation to Children’s ICT Self-Efficacy.” Learning Environments Research, vol. 25, no. 2, Springer Science and Business Media LLC, 2021, pp. 485–505, doi:10.1007/s10984-021-09377-8.","bibtex":"@article{Bonanati_Buhl_2021, title={The digital home learning environment and its relation to children’s ICT self-efficacy}, volume={25}, DOI={10.1007/s10984-021-09377-8}, number={2}, journal={Learning Environments Research}, publisher={Springer Science and Business Media LLC}, author={Bonanati, Sabrina and Buhl, Heike M.}, year={2021}, pages={485–505} }","ama":"Bonanati S, Buhl HM. The digital home learning environment and its relation to children’s ICT self-efficacy. Learning Environments Research. 2021;25(2):485-505. doi:10.1007/s10984-021-09377-8","ieee":"S. Bonanati and H. M. Buhl, “The digital home learning environment and its relation to children’s ICT self-efficacy,” Learning Environments Research, vol. 25, no. 2, pp. 485–505, 2021, doi: 10.1007/s10984-021-09377-8.","apa":"Bonanati, S., & Buhl, H. M. (2021). The digital home learning environment and its relation to children’s ICT self-efficacy. Learning Environments Research, 25(2), 485–505. https://doi.org/10.1007/s10984-021-09377-8","chicago":"Bonanati, Sabrina, and Heike M. Buhl. “The Digital Home Learning Environment and Its Relation to Children’s ICT Self-Efficacy.” Learning Environments Research 25, no. 2 (2021): 485–505. https://doi.org/10.1007/s10984-021-09377-8.","short":"S. Bonanati, H.M. Buhl, Learning Environments Research 25 (2021) 485–505."},"project":[{"grant_number":"01JD1814A","_id":"378","name":"DigHomE: DigHomE: Digital Home Learning Environment – Gelingensbedingungen elterlicher Unterstützung bei der informationsorientierten Internetnutzung"}],"oa":"1","status":"public","page":"485-505","publisher":"Springer Science and Business Media LLC","_id":"32558","user_id":"27152","volume":25},{"author":[{"full_name":"Schneider, Stefan Balthasar","last_name":"Schneider","orcid":"0000-0001-8210-4011","first_name":"Stefan Balthasar","id":"35343"},{"last_name":"Manzoor","first_name":"Adnan","full_name":"Manzoor, Adnan"},{"last_name":"Qarawlus","first_name":"Haydar","full_name":"Qarawlus, Haydar"},{"first_name":"Rafael","last_name":"Schellenberg","full_name":"Schellenberg, Rafael"},{"full_name":"Karl, Holger","first_name":"Holger","last_name":"Karl","id":"126"},{"first_name":"Ramin","last_name":"Khalili","full_name":"Khalili, Ramin"},{"last_name":"Hecker","first_name":"Artur","full_name":"Hecker, Artur"}],"year":"2020","title":"Self-Driving Network and Service Coordination Using Deep Reinforcement Learning","date_updated":"2022-01-06T06:54:08Z","language":[{"iso":"eng"}],"publication":"IEEE International Conference on Network and Service Management (CNSM)","abstract":[{"lang":"eng","text":"Modern services comprise interconnected components,\r\ne.g., microservices in a service mesh, that can scale and\r\nrun on multiple nodes across the network on demand. To process\r\nincoming traffic, service components have to be instantiated and\r\ntraffic assigned to these instances, taking capacities and changing\r\ndemands into account. This challenge is usually solved with\r\ncustom approaches designed by experts. While this typically\r\nworks well for the considered scenario, the models often rely\r\non unrealistic assumptions or on knowledge that is not available\r\nin practice (e.g., a priori knowledge).\r\n\r\nWe propose a novel deep reinforcement learning approach that\r\nlearns how to best coordinate services and is geared towards\r\nrealistic assumptions. It interacts with the network and relies on\r\navailable, possibly delayed monitoring information. Rather than\r\ndefining a complex model or an algorithm how to achieve an\r\nobjective, our model-free approach adapts to various objectives\r\nand traffic patterns. An agent is trained offline without expert\r\nknowledge and then applied online with minimal overhead. Compared\r\nto a state-of-the-art heuristic, it significantly improves flow\r\nthroughput and overall network utility on real-world network\r\ntopologies and traffic traces. It also learns to optimize different\r\nobjectives, generalizes to scenarios with unseen, stochastic traffic\r\npatterns, and scales to large real-world networks."}],"date_created":"2020-09-22T06:28:22Z","file":[{"file_id":"19610","content_type":"application/pdf","file_name":"ris_with_copyright.pdf","access_level":"open_access","file_size":642999,"relation":"main_file","date_updated":"2020-09-22T06:36:00Z","date_created":"2020-09-22T06:29:16Z","creator":"stschn"}],"department":[{"_id":"75"}],"keyword":["self-driving networks","self-learning","network coordination","service coordination","reinforcement learning","deep learning","nfv"],"type":"conference","status":"public","has_accepted_license":"1","publisher":"IEEE","_id":"19609","user_id":"35343","ddc":["006"],"citation":{"chicago":"Schneider, Stefan Balthasar, Adnan Manzoor, Haydar Qarawlus, Rafael Schellenberg, Holger Karl, Ramin Khalili, and Artur Hecker. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” In IEEE International Conference on Network and Service Management (CNSM). IEEE, 2020.","short":"S.B. Schneider, A. Manzoor, H. Qarawlus, R. Schellenberg, H. Karl, R. Khalili, A. Hecker, in: IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020.","ieee":"S. B. Schneider et al., “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning,” in IEEE International Conference on Network and Service Management (CNSM), 2020.","apa":"Schneider, S. B., Manzoor, A., Qarawlus, H., Schellenberg, R., Karl, H., Khalili, R., & Hecker, A. (2020). Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In IEEE International Conference on Network and Service Management (CNSM). IEEE.","bibtex":"@inproceedings{Schneider_Manzoor_Qarawlus_Schellenberg_Karl_Khalili_Hecker_2020, title={Self-Driving Network and Service Coordination Using Deep Reinforcement Learning}, booktitle={IEEE International Conference on Network and Service Management (CNSM)}, publisher={IEEE}, author={Schneider, Stefan Balthasar and Manzoor, Adnan and Qarawlus, Haydar and Schellenberg, Rafael and Karl, Holger and Khalili, Ramin and Hecker, Artur}, year={2020} }","ama":"Schneider SB, Manzoor A, Qarawlus H, et al. Self-Driving Network and Service Coordination Using Deep Reinforcement Learning. In: IEEE International Conference on Network and Service Management (CNSM). IEEE; 2020.","mla":"Schneider, Stefan Balthasar, et al. “Self-Driving Network and Service Coordination Using Deep Reinforcement Learning.” IEEE International Conference on Network and Service Management (CNSM), IEEE, 2020."},"file_date_updated":"2020-09-22T06:36:00Z","project":[{"_id":"1","name":"SFB 901"},{"_id":"4","name":"SFB 901 - Project Area C"},{"_id":"16","name":"SFB 901 - Subproject C4"}],"oa":"1"},{"doi":"10.1016/j.jajp.2020.100015","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"intvolume":" 1","date_updated":"2022-04-25T07:49:50Z","author":[{"id":"71269","orcid":"0000-0002-8652-9209","first_name":"Mortaza","last_name":"Otroshi","full_name":"Otroshi, Mortaza"},{"full_name":"Rossel, Moritz","last_name":"Rossel","first_name":"Moritz"},{"id":"32056","last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246","full_name":"Meschut, Gerson"}],"title":"Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model","year":"2020","department":[{"_id":"157"}],"keyword":["Self-pierce riveting","Ductile fracture","Damage modeling","GISSMO damage model"],"type":"journal_article","date_created":"2020-10-20T14:49:15Z","publication":"Journal of Advanced Joining Processes","volume":1,"user_id":"71269","_id":"20143","publisher":"Elsevier","status":"public","oa":"1","quality_controlled":"1","citation":{"mla":"Otroshi, Mortaza, et al. “Stress State Dependent Damage Modeling of Self-Pierce Riveting Process Simulation Using GISSMO Damage Model.” Journal of Advanced Joining Processes, vol. 1, Elsevier, 2020, doi:10.1016/j.jajp.2020.100015.","ama":"Otroshi M, Rossel M, Meschut G. Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model. Journal of Advanced Joining Processes. 2020;1. doi:10.1016/j.jajp.2020.100015","bibtex":"@article{Otroshi_Rossel_Meschut_2020, title={Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model}, volume={1}, DOI={10.1016/j.jajp.2020.100015}, journal={Journal of Advanced Joining Processes}, publisher={Elsevier}, author={Otroshi, Mortaza and Rossel, Moritz and Meschut, Gerson}, year={2020} }","apa":"Otroshi, M., Rossel, M., & Meschut, G. (2020). Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model. Journal of Advanced Joining Processes, 1. https://doi.org/10.1016/j.jajp.2020.100015","ieee":"M. Otroshi, M. Rossel, and G. Meschut, “Stress state dependent damage modeling of self-pierce riveting process simulation using GISSMO damage model,” Journal of Advanced Joining Processes, vol. 1, 2020, doi: 10.1016/j.jajp.2020.100015.","chicago":"Otroshi, Mortaza, Moritz Rossel, and Gerson Meschut. “Stress State Dependent Damage Modeling of Self-Pierce Riveting Process Simulation Using GISSMO Damage Model.” Journal of Advanced Joining Processes 1 (2020). https://doi.org/10.1016/j.jajp.2020.100015.","short":"M. Otroshi, M. Rossel, G. Meschut, Journal of Advanced Joining Processes 1 (2020)."}},{"issue":"1","publication":"Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion","abstract":[{"text":"Im Artikel werden drei verschiedene Lernzugänge (kom-petenzorientiertes, ästhetisches und biographisches Lernen) vorgestellt und aus theoretischer Perspektive deren motivierender Gehalt für selbstreguliertes Lernen in Praxisphasen des Lehramtsstudiumsherausgearbeitet. Als theoretische Grund-lage dient die Selbstbestimmungstheorie als zentrale motivationale Theorie zur Erklärung selbstbestimmten Handelns.","lang":"ger"},{"lang":"eng","text":"The article addresses how motivational learning approaches (competency-oriented, aesthetic and biographical) can contribute to the professionalization of preservice teachers during a long-term internship. As a theoretical basis, the self-determination theory serves as a central motivational theory for explaining self-determined action."}],"date_created":"2023-01-05T13:58:28Z","type":"journal_article","keyword":["ästhetische Forschung","Biographiearbeit","Praxissemester","Professionalisierung","selbstreguliertes Lernen","Motivation / aesthetic research","biographical work","long-term internship","profes-sionalization","self-regulated learning","motivation"],"title":"Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen","year":"2020","author":[{"full_name":"Caruso, Carina","first_name":"Carina","last_name":"Caruso","id":"23123"},{"last_name":"Adammek","first_name":"Christine","full_name":"Adammek, Christine"},{"first_name":"Sabrina","last_name":"Bonanati","full_name":"Bonanati, Sabrina"},{"last_name":"Wiescholek","first_name":"Sybille","full_name":"Wiescholek, Sybille"}],"publication_identifier":{"issn":["2625-0675"]},"date_updated":"2023-01-06T12:18:16Z","publication_status":"published","intvolume":" 3","language":[{"iso":"other"}],"doi":"10.4119/hlz-2540","alternative_title":["Ein Blick auf kompetenzorientiertes, ästhetisches und biographisches Lernen im Lehramtsstudium"],"citation":{"short":"C. Caruso, C. Adammek, S. Bonanati, S. Wiescholek, Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion 3 (2020) 18–33.","chicago":"Caruso, Carina, Christine Adammek, Sabrina Bonanati, and Sybille Wiescholek. “Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen.” Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion 3, no. 1 (2020): 18–33. https://doi.org/10.4119/hlz-2540.","ieee":"C. Caruso, C. Adammek, S. Bonanati, and S. Wiescholek, “Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen,” Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion, vol. 3, no. 1, pp. 18–33, 2020, doi: 10.4119/hlz-2540.","apa":"Caruso, C., Adammek, C., Bonanati, S., & Wiescholek, S. (2020). Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen. Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion, 3(1), 18–33. https://doi.org/10.4119/hlz-2540","bibtex":"@article{Caruso_Adammek_Bonanati_Wiescholek_2020, title={Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen}, volume={3}, DOI={10.4119/hlz-2540}, number={1}, journal={Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion}, author={Caruso, Carina and Adammek, Christine and Bonanati, Sabrina and Wiescholek, Sybille}, year={2020}, pages={18–33} }","ama":"Caruso C, Adammek C, Bonanati S, Wiescholek S. Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen. Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion. 2020;3(1):18-33. doi:10.4119/hlz-2540","mla":"Caruso, Carina, et al. “Motivierende Lernzugänge als Ausgangspunkt der Professionalisierung angehender Lehrer_innen.” Herausforderung Lehrer*innenbildung - Zeitschrift Zur Konzeption, Gestaltung Und Diskussion, vol. 3, no. 1, 2020, pp. 18–33, doi:10.4119/hlz-2540."},"status":"public","page":"18-33","_id":"35298","user_id":"86519","volume":3},{"status":"public","page":"280-285","_id":"19976","user_id":"53912","editor":[{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"id":"38131","full_name":"Uhe, Benedikt","first_name":"Benedikt","last_name":"Uhe"},{"id":"32056","full_name":"Meschut, Gerson","last_name":"Meschut","first_name":"Gerson","orcid":"0000-0002-2763-1246"},{"first_name":"Marion","last_name":"Merklein","full_name":"Merklein, Marion"}],"volume":50,"citation":{"mla":"Kuball, Clara-Maria, et al., editors. Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel. 2020, pp. 280–85, doi:10.1016/j.promfg.2020.08.052.","bibtex":"@book{Kuball_Uhe_Meschut_Merklein_2020, series={Procedia Manufacturing}, title={Process design for the forming of semi-tubular self-piercing rivets made of high nitrogen steel}, volume={50}, DOI={10.1016/j.promfg.2020.08.052}, year={2020}, pages={280–285}, collection={Procedia Manufacturing} }","ama":"Kuball C-M, Uhe B, Meschut G, Merklein M, eds. Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel. Vol 50.; 2020:280-285. doi:10.1016/j.promfg.2020.08.052","ieee":"C.-M. Kuball, B. Uhe, G. Meschut, and M. Merklein, Eds., Process design for the forming of semi-tubular self-piercing rivets made of high nitrogen steel, vol. 50. 2020, pp. 280–285.","apa":"Kuball, C.-M., Uhe, B., Meschut, G., & Merklein, M. (Eds.). (2020). Process design for the forming of semi-tubular self-piercing rivets made of high nitrogen steel (Vol. 50, pp. 280–285). https://doi.org/10.1016/j.promfg.2020.08.052","chicago":"Kuball, Clara-Maria, Benedikt Uhe, Gerson Meschut, and Marion Merklein, eds. Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel. Vol. 50. Procedia Manufacturing, 2020. https://doi.org/10.1016/j.promfg.2020.08.052.","short":"C.-M. Kuball, B. Uhe, G. Meschut, M. Merklein, eds., Process Design for the Forming of Semi-Tubular Self-Piercing Rivets Made of High Nitrogen Steel, 2020."},"quality_controlled":"1","title":"Process design for the forming of semi-tubular self-piercing rivets made of high nitrogen steel","year":"2020","date_updated":"2026-02-27T10:43:48Z","publication_status":"published","intvolume":" 50","language":[{"iso":"eng"}],"series_title":"Procedia Manufacturing","doi":"10.1016/j.promfg.2020.08.052","abstract":[{"lang":"eng","text":"The aim to reduce pollutant emission has led to a trend towards lightweight construction in car body development during the last years. As a consequence of the resulting need for multi-material design, mechanical joining technologies become increasingly important. Mechanical joining allows for the combination of dissimilar materials, while thermic joining techniques reach their limits. Self-piercing riveting enables the joining of dissimilar materials by using semi-tubular rivets as mechanical fasteners. The rivet production, however, is costly and time-consuming, as the rivets generally have to be hardened, tempered and coated after forming, in order to achieve an adequate strength and corrosion resistance. A promising approach to improve the efficiency of the rivet manufacturing is the use of high-strength high nitrogen steel as rivet material because these additional process steps would not be necessary anymore. As a result of the comparatively high nitrogen content, such steels have various beneficial properties like higher strength, good ductility and improved corrosion resistance. By cold bulk forming of high nitrogen steels high-strength parts can be manufactured due to the strengthening which is caused by the high strain hardening. However, high tool loads thereby have to be expected and are a major challenge during the production process. Consequently, there is a need for appropriate forming strategies. This paper presents key aspects concerning the process design for the manufacturing of semi-tubular self-piercing rivets made of high-strength steel. The aim is to produce the rivets in several forming stages without intermediate heat treatment between the single stages. Due to the high strain hardening of the material, a two stage forming concept will be investigated. Cup-backward extrusion is chosen as the first process step in order to form the rivet shank without forming the rivet foot. Thus, the strain hardening effects in the area of the rivet foot are minimized and the tool loads during the following process step can be reduced. During the second and final forming stage the detailed geometry of the rivet foot and the rivet head is formed. In this context, the effect of different variations, for example concerning the final geometry of the rivet foot, on the tool load is investigated using multistage numerical analysis. Furthermore, the influence of the process temperature on occurring stresses is analysed. Based on the results of the investigations, an adequate forming strategy and a tool concept for the manufacturing of semi-tubular self-piercing rivets made of high-strength steel are presented."}],"date_created":"2020-10-12T08:30:08Z","type":"conference_editor","keyword":["high nitrogen steel","self-piercing riveting","joining by forming","bulk forming","tool design"],"department":[{"_id":"157"}]},{"publication":"Production Engineering","abstract":[{"lang":"eng","text":"As a result of lightweight design, increased use is being made of high-strength steel and aluminium in car bodies. Self-piercing riveting is an established technique for joining these materials. The dissimilar properties of the two materials have led to a number of different rivet geometries in the past. Each rivet geometry fulfils the requirements of the materials within a limited range. In the present investigation, an improved rivet geometry is developed, which permits the reliable joining of two material combinations that could only be joined by two different rivet geometries up until now. Material combination 1 consists of high-strength steel on both sides, while material combination 2 comprises aluminium on the punch side and high-strength steel on the die side. The material flow and the stress and strain conditions prevailing during the joining process are analysed by means of numerical simulation. The rivet geometry is then improved step-by-step on the basis of this analysis. Finally, the improved rivet geometry is manufactured and the findings of the investigation are verified in experimental joining tests."}],"date_created":"2020-10-12T08:14:13Z","type":"journal_article","keyword":["Self-piercing riveting","Joining technology","Rivet geometry","Multi-material design","High-strength steel","Aluminium"],"department":[{"_id":"157"}],"title":"Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints","year":"2020","author":[{"full_name":"Uhe, Benedikt","first_name":"Benedikt","last_name":"Uhe","id":"38131"},{"first_name":"Clara-Maria","last_name":"Kuball","full_name":"Kuball, Clara-Maria"},{"last_name":"Merklein","first_name":"Marion","full_name":"Merklein, Marion"},{"orcid":"0000-0002-2763-1246","last_name":"Meschut","first_name":"Gerson","full_name":"Meschut, Gerson","id":"32056"}],"date_updated":"2026-02-27T10:41:55Z","publication_status":"published","intvolume":" 14","article_type":"original","language":[{"iso":"eng"}],"doi":"10.1007/s11740-020-00973-w","citation":{"ieee":"B. Uhe, C.-M. Kuball, M. Merklein, and G. Meschut, “Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints,” Production Engineering, vol. 14, pp. 417–423, 2020, doi: 10.1007/s11740-020-00973-w.","apa":"Uhe, B., Kuball, C.-M., Merklein, M., & Meschut, G. (2020). Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints. Production Engineering, 14, 417–423. https://doi.org/10.1007/s11740-020-00973-w","chicago":"Uhe, Benedikt, Clara-Maria Kuball, Marion Merklein, and Gerson Meschut. “Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength Steel and Multi-Material Joints.” Production Engineering 14 (2020): 417–23. https://doi.org/10.1007/s11740-020-00973-w.","short":"B. Uhe, C.-M. Kuball, M. Merklein, G. Meschut, Production Engineering 14 (2020) 417–423.","mla":"Uhe, Benedikt, et al. “Improvement of a Rivet Geometry for the Self-Piercing Riveting of High-Strength Steel and Multi-Material Joints.” Production Engineering, vol. 14, 2020, pp. 417–23, doi:10.1007/s11740-020-00973-w.","bibtex":"@article{Uhe_Kuball_Merklein_Meschut_2020, title={Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints}, volume={14}, DOI={10.1007/s11740-020-00973-w}, journal={Production Engineering}, author={Uhe, Benedikt and Kuball, Clara-Maria and Merklein, Marion and Meschut, Gerson}, year={2020}, pages={417–423} }","ama":"Uhe B, Kuball C-M, Merklein M, Meschut G. Improvement of a rivet geometry for the self-piercing riveting of high-strength steel and multi-material joints. Production Engineering. 2020;14:417-423. doi:10.1007/s11740-020-00973-w"},"quality_controlled":"1","status":"public","page":"417-423","_id":"19973","user_id":"53912","volume":14},{"user_id":"53912","editor":[{"full_name":"Kuball, Clara-Maria","last_name":"Kuball","first_name":"Clara-Maria"},{"first_name":"R","last_name":"Jung","full_name":"Jung, R"},{"first_name":"Benedikt","last_name":"Uhe","full_name":"Uhe, Benedikt","id":"38131"},{"full_name":"Meschut, Gerson","last_name":"Meschut","orcid":"0000-0002-2763-1246","first_name":"Gerson","id":"32056"},{"full_name":"Merklein, Marion","last_name":"Merklein","first_name":"Marion"}],"volume":1,"_id":"19974","status":"public","quality_controlled":"1","citation":{"short":"C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, M. Merklein, eds., Influence of the Process Temperature on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen Steel, 2020.","chicago":"Kuball, Clara-Maria, R Jung, Benedikt Uhe, Gerson Meschut, and Marion Merklein, eds. Influence of the Process Temperature on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen Steel. Vol. 1. Journal of Advanced Joining Processes, 2020. https://doi.org/10.1016/j.jajp.2020.100023.","ieee":"C.-M. Kuball, R. Jung, B. Uhe, G. Meschut, and M. Merklein, Eds., Influence of the process temperature on the forming behaviour and the friction during bulk forming of high nitrogen steel, vol. 1. 2020.","apa":"Kuball, C.-M., Jung, R., Uhe, B., Meschut, G., & Merklein, M. (Eds.). (2020). Influence of the process temperature on the forming behaviour and the friction during bulk forming of high nitrogen steel (No. 100023; Vol. 1). https://doi.org/10.1016/j.jajp.2020.100023","bibtex":"@book{Kuball_Jung_Uhe_Meschut_Merklein_2020, series={Journal of Advanced Joining Processes}, title={Influence of the process temperature on the forming behaviour and the friction during bulk forming of high nitrogen steel}, volume={1}, DOI={10.1016/j.jajp.2020.100023}, number={100023}, year={2020}, collection={Journal of Advanced Joining Processes} }","ama":"Kuball C-M, Jung R, Uhe B, Meschut G, Merklein M, eds. Influence of the Process Temperature on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen Steel. Vol 1.; 2020. doi:10.1016/j.jajp.2020.100023","mla":"Kuball, Clara-Maria, et al., editors. Influence of the Process Temperature on the Forming Behaviour and the Friction during Bulk Forming of High Nitrogen Steel. 100023, 2020, doi:10.1016/j.jajp.2020.100023."},"doi":"10.1016/j.jajp.2020.100023","article_number":"100023","language":[{"iso":"eng"}],"series_title":"Journal of Advanced Joining Processes","date_updated":"2026-02-27T10:45:08Z","publication_status":"published","intvolume":" 1","title":"Influence of the process temperature on the forming behaviour and the friction during bulk forming of high nitrogen steel","year":"2020","type":"conference_editor","keyword":["High nitrogen steel","Self-piercing riveting","Joining by forming","Bulk forming","Strain hardening"],"department":[{"_id":"157"}],"date_created":"2020-10-12T08:23:27Z","abstract":[{"lang":"eng","text":"Due to the trend towards lightweight design in car body development mechanical joining technologies become increasingly important. These techniques allow for the joining of dissimilar materials and thus enable multi-material design, while thermic joining methods reach their limits. Semi-tubular self-piercing riveting is an important mechanical joining technology. The rivet production, however, is costly and time-consuming, as the process consists of several process steps including the heat treatment and coating of the rivets in order to achieve an adequate strength and corrosion resistance. The use of high nitrogen steel as rivet material leads to the possibility of reducing process steps and hence increasing the efficiency of the process. However, the high tool loads being expected due to the high strain hardening of the material are a major challenge during the rivet production. Thus, there is a need for appropriate forming strategies, such as the manufacturing of the rivets at elevated temperatures. Prior investigations led to the conclusion that forming already at 200 °C results in a distinct reduction of the yield strength. To create a deeper understanding of the forming behaviour of high nitrogen steel at elevated temperatures, compression tests were conducted in a temperature range between room temperature and 200 °C. The determined true stress – true strain curves are the basis for the further process and tool design of the rivet production. Another key factor for the rivet manufacturing at elevated temperatures is the influence of the process temperature on the tribological conditions. For this reason, ring compression tests at room temperature and 200 °C are carried out. The friction factors are determined on the basis of calibration curves resulting from the numerical analysis of the ring compression process. The investigations indicate that the friction factor at 200 °C is significantly higher compared to room temperature. This essential fact has to be taken into account for the process and tool design for the rivet production using high nitrogen steel."}]},{"date_updated":"2023-09-15T12:23:55Z","title":"Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen","year":"2019","status":"public","author":[{"full_name":"Bornmann, Peter","first_name":"Peter","last_name":"Bornmann"}],"user_id":"210","language":[{"iso":"eng"}],"_id":"10000","publisher":"Shaker","abstract":[{"text":"Ultraschall wird zur Effizienzsteigerung in verfahrenstechnischen Prozessen eingesetzt. Die Betriebsparamter der Ultraschallsysteme werden empirisch ermittelt, da derzeit keine systematische Analyse der Wechselwirkung zwischen Ultraschallwandler und Schallfeld sowie kein Verfahren zur Messung der Kavitationsaktivität ohne zusätzlichen Sensor existieren. Auf Basis einer experimentellen Analyse des betrachteten sonochemischen Reaktors wird ein Finite-Elemente-Modell aufgebaut, das die Wechselwirkung zwischen Schallfeld und Ultraschallwandler berücksichtigt. Die modellbasierte Analyse zeigt, dass wegen der akustischen Eigenschaften des Autoklavs nur direkt an der Sonotrode Kavitation entsteht. Die Wechselwirkung zwischen Ultraschallwandler und Schallfeld ermöglicht Aussagen über das Schallfeld und die Kavitationsaktivität auf Basis der Rückwirkung auf den Ultraschallwandler. Die lineare Schalldruckverteilung ermöglicht eine Prognose über die Verteilung von Kavitationszonen. Das beschriebene Modell liefert wertvolle Erkenntnisse für die Auslegung, Analyse und Skalierung sonochemischer Reaktoren. Auf Grund der rauen Prozessrandbedingungen ist die Applikation von Sensoren zur Überwachung der Kavitationsaktivität in vielen sonochemischen Prozessen nicht möglich. Zur prozessbegleitenden Messung der Kavitationsaktivität wird ein Verfahren entwickelt, das die Bewertung der Kavitationsaktivität durch Auswertung der Rückwirkung auf den Ultraschallwandler erlaubt. Das Messverfahren ermöglicht eine vorhersagbare und reproduzierbare Durchführung kavitationsbasierter Prozesse und stellt eine wichtige Erweiterung für bestehende und neue Ultraschallsysteme dar.","lang":"eng"}],"citation":{"apa":"Bornmann, P. (2019). Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen. Shaker.","ieee":"P. Bornmann, Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen. Shaker, 2019.","short":"P. Bornmann, Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen, Shaker, 2019.","chicago":"Bornmann, Peter. Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen. Shaker, 2019.","mla":"Bornmann, Peter. Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen. Shaker, 2019.","ama":"Bornmann P. Modellierung Und Experimentelle Charakterisierung Der Wechselwirkung Zwischen Ultraschallwandler Und Flüssigkeit in Kavitationsbasierten Prozessen. Shaker; 2019.","bibtex":"@book{Bornmann_2019, title={Modellierung und experimentelle Charakterisierung der Wechselwirkung zwischen Ultraschallwandler und Flüssigkeit in kavitationsbasierten Prozessen}, publisher={Shaker}, author={Bornmann, Peter}, year={2019} }"},"type":"dissertation","keyword":["Sonochemie","Akustische Kavitation","Kavitationsmessung","Kavitationsdetektion","FEM-Simulation Ultraschallwandler","Prozessüberwachung","FEM-Simulation Schallfeld","Self-Sensing","Piezoelektrische Ultraschallwandler","Ultraschallreinigung"],"department":[{"_id":"151"}],"date_created":"2019-05-27T10:29:53Z"},{"citation":{"ama":"Rötzmeier-Keuper J, Hendricks J, Wünderlich N, Schmitz G. Triadic relationships in the context of services for animal companions. Journal of Business Research. 2018;(85):295--303.","bibtex":"@article{Rötzmeier-Keuper_Hendricks_Wünderlich_Schmitz_2018, title={Triadic relationships in the context of services for animal companions}, number={85}, journal={Journal of Business Research}, publisher={Elsevier}, author={Rötzmeier-Keuper, Julia and Hendricks, Jennifer and Wünderlich, Nancy and Schmitz, Gertrud}, year={2018}, pages={295--303} }","mla":"Rötzmeier-Keuper, Julia, et al. “Triadic Relationships in the Context of Services for Animal Companions.” Journal of Business Research, no. 85, Elsevier, 2018, pp. 295--303.","short":"J. Rötzmeier-Keuper, J. Hendricks, N. Wünderlich, G. Schmitz, Journal of Business Research (2018) 295--303.","chicago":"Rötzmeier-Keuper, Julia, Jennifer Hendricks, Nancy Wünderlich, and Gertrud Schmitz. “Triadic Relationships in the Context of Services for Animal Companions.” Journal of Business Research, no. 85 (2018): 295--303.","apa":"Rötzmeier-Keuper, J., Hendricks, J., Wünderlich, N., & Schmitz, G. (2018). Triadic relationships in the context of services for animal companions. Journal of Business Research, (85), 295--303.","ieee":"J. Rötzmeier-Keuper, J. Hendricks, N. Wünderlich, and G. Schmitz, “Triadic relationships in the context of services for animal companions,” Journal of Business Research, no. 85, pp. 295--303, 2018."},"publication":"Journal of Business Research","issue":"85","abstract":[{"text":"Triadic service relationships comprise complex relationships in which not only the customer and provider are involved as partners but also other individuals with caregiving relationships with the customer. A triadic constellation may arise in the context of services for animal companions, for example, when veterinarians provide counsel and treatment to the animal companion and its owner. Through interviews with both owners of animal companions and providers of services for animal companions, this study explores typical constellations and characteristics of the three relationships in this service triad. In line with balance theory, the results show that four distinct types of triadic relationships exist in services for animal companions: the harmonious, the dysfunctional, the challenging, and the doubtful triad. The study highlights the potential conflicts and dynamics in the triads to advise providers on how to address customers depending on the types of triads to which they belong.","lang":"eng"}],"date_created":"2018-07-10T07:15:45Z","department":[{"_id":"181"}],"type":"journal_article","keyword":["Triadic relationships","Balance theory","Pet-related services","Animal companions","Service relationship typology","Service triads"],"author":[{"full_name":"Rötzmeier-Keuper, Julia","first_name":"Julia","last_name":"Rötzmeier-Keuper","id":"24869"},{"first_name":"Jennifer","last_name":"Hendricks","full_name":"Hendricks, Jennifer"},{"first_name":"Nancy","last_name":"Wünderlich","full_name":"Wünderlich, Nancy","id":"36392"},{"first_name":"Gertrud","last_name":"Schmitz","full_name":"Schmitz, Gertrud"}],"status":"public","title":"Triadic relationships in the context of services for animal companions","year":"2018","article_type":"original","date_updated":"2022-01-06T06:59:21Z","publication_status":"published","_id":"3516","language":[{"iso":"eng"}],"publisher":"Elsevier","page":"295--303","user_id":"37741"},{"publisher":"IEEE","_id":"1163","user_id":"11319","ddc":["040"],"status":"public","conference":{"end_date":"2018-5-24","location":"Vancouver","start_date":"2018-5-22","name":"32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS)"},"has_accepted_license":"1","external_id":{"arxiv":["1710.08128"]},"file_date_updated":"2018-10-31T13:25:37Z","citation":{"chicago":"Feldmann, Michael, Christina Kolb, Christian Scheideler, and Thim Frederik Strothmann. “Self-Stabilizing Supervised Publish-Subscribe Systems.” In Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS). IEEE, 2018. https://doi.org/10.1109/IPDPS.2018.00114.","short":"M. Feldmann, C. Kolb, C. Scheideler, T.F. Strothmann, in: Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS), IEEE, 2018.","ama":"Feldmann M, Kolb C, Scheideler C, Strothmann TF. Self-Stabilizing Supervised Publish-Subscribe Systems. In: Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS). IEEE; 2018. doi:10.1109/IPDPS.2018.00114","bibtex":"@inproceedings{Feldmann_Kolb_Scheideler_Strothmann_2018, title={Self-Stabilizing Supervised Publish-Subscribe Systems}, DOI={10.1109/IPDPS.2018.00114}, booktitle={Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS)}, publisher={IEEE}, author={Feldmann, Michael and Kolb, Christina and Scheideler, Christian and Strothmann, Thim Frederik}, year={2018} }","mla":"Feldmann, Michael, et al. “Self-Stabilizing Supervised Publish-Subscribe Systems.” Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS), IEEE, 2018, doi:10.1109/IPDPS.2018.00114.","apa":"Feldmann, M., Kolb, C., Scheideler, C., & Strothmann, T. F. (2018). Self-Stabilizing Supervised Publish-Subscribe Systems. In Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS). Vancouver: IEEE. https://doi.org/10.1109/IPDPS.2018.00114","ieee":"M. Feldmann, C. Kolb, C. Scheideler, and T. F. Strothmann, “Self-Stabilizing Supervised Publish-Subscribe Systems,” in Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS), Vancouver, 2018."},"project":[{"_id":"1","name":"SFB 901"},{"_id":"2","name":"SFB 901 - Project Area A"},{"_id":"5","name":"SFB 901 - Subproject A1"}],"language":[{"iso":"eng"}],"doi":"10.1109/IPDPS.2018.00114","year":"2018","title":"Self-Stabilizing Supervised Publish-Subscribe Systems","author":[{"id":"23538","last_name":"Feldmann","first_name":"Michael","full_name":"Feldmann, Michael"},{"last_name":"Kolb","first_name":"Christina","full_name":"Kolb, Christina","id":"43647"},{"full_name":"Scheideler, Christian","first_name":"Christian","last_name":"Scheideler","id":"20792"},{"last_name":"Strothmann","first_name":"Thim Frederik","full_name":"Strothmann, Thim Frederik","id":"11319"}],"date_updated":"2022-01-06T06:51:05Z","file":[{"file_id":"5211","success":1,"content_type":"application/pdf","relation":"main_file","date_updated":"2018-10-31T13:25:37Z","file_name":"08425258.pdf","access_level":"closed","file_size":239559,"date_created":"2018-10-31T13:25:37Z","creator":"mfeldma2"}],"date_created":"2018-02-01T13:56:01Z","keyword":["Topological Self-stabilization","Supervised Overlay","Publish-Subscribe System"],"type":"conference","department":[{"_id":"79"},{"_id":"66"}],"publication":"Proceedings of the 32nd IEEE International Parallel & Distributed Processing Symposium (IPDPS)","abstract":[{"lang":"eng","text":"In this paper we present two major results:\r\nFirst, we introduce the first self-stabilizing version of a supervised overlay network (as introduced in~\\cite{DBLP:conf/ispan/KothapalliS05}) by presenting a self-stabilizing supervised skip ring.\r\nSecondly, we show how to use the self-stabilizing supervised skip ring to construct an efficient self-stabilizing publish-subscribe system.\r\nThat is, in addition to stabilizing the overlay network, every subscriber of a topic will eventually know all of the publications that have been issued so far for that topic. The communication work needed to processes a subscribe or unsubscribe operation is just a constant in a legitimate state, and the communication work of checking whether the system is still in a legitimate state is just a constant on expectation for the supervisor as well as any process in the system.\r\n"}]}]