[{"abstract":[{"lang":"eng","text":"Class expression learning in description logics has long been regarded as an iterative search problem in an infinite conceptual space. Each iteration of the search process invokes a reasoner and a heuristic function. The reasoner finds the instances of the current expression, and the heuristic function computes the information gain and decides on the next step to be taken. As the size of the background knowledge base grows, search-based approaches for class expression learning become prohibitively slow. Current neural class expression synthesis (NCES) approaches investigate the use of neural networks for class expression learning in the attributive language with complement (ALC). While they show significant improvements over search-based approaches in runtime and quality of the computed solutions, they rely on the availability of pretrained embeddings for the input knowledge base. Moreover, they are not applicable to ontologies in more expressive description logics. In this paper, we propose a novel NCES approach which extends the state of the art to the description logic ALCHIQ(D). Our extension, dubbed NCES2, comes with an improved training data generator and does not require pretrained embeddings for the input knowledge base as both the embedding model and the class expression synthesizer are trained jointly. Empirical results on benchmark datasets suggest that our approach inherits the scalability capability of current NCES instances with the additional advantage that it supports more complex learning problems. NCES2 achieves the highest performance overall when compared to search-based approaches and to its predecessor NCES. We provide our source code, datasets, and pretrained models at https://github.com/dice-group/NCES2."}],"publication":"Machine Learning and Knowledge Discovery in Databases: Research Track","department":[{"_id":"760"},{"_id":"574"}],"type":"book_chapter","date_created":"2023-09-25T13:42:01Z","file":[{"date_created":"2024-05-22T10:45:08Z","creator":"heindorf","content_type":"application/pdf","file_id":"54417","date_updated":"2024-05-22T10:46:58Z","relation":"main_file","access_level":"open_access","file_size":432708,"file_name":"NCES2_public.pdf"}],"date_updated":"2024-05-22T10:48:24Z","publication_status":"published","publication_identifier":{"issn":["0302-9743","1611-3349"],"isbn":["9783031434204","9783031434211"]},"author":[{"id":"87189","full_name":"Kouagou, N'Dah Jean","last_name":"Kouagou","first_name":"N'Dah Jean"},{"first_name":"Stefan","last_name":"Heindorf","orcid":"0000-0002-4525-6865","full_name":"Heindorf, Stefan","id":"11871"},{"full_name":"Demir, Caglar","first_name":"Caglar","last_name":"Demir","id":"43817"},{"last_name":"Ngonga Ngomo","first_name":"Axel-Cyrille","full_name":"Ngonga Ngomo, Axel-Cyrille","id":"65716"}],"year":"2023","title":"Neural Class Expression Synthesis in ALCHIQ(D)","doi":"10.1007/978-3-031-43421-1_12","language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1","url":"https://papers.dice-research.org/2023/ECML_NCES2/NCES2_public.pdf"}],"citation":{"chicago":"Kouagou, N’Dah Jean, Stefan Heindorf, Caglar Demir, and Axel-Cyrille Ngonga Ngomo. “Neural Class Expression Synthesis in ALCHIQ(D).” In <i>Machine Learning and Knowledge Discovery in Databases: Research Track</i>. Cham: Springer Nature Switzerland, 2023. <a href=\"https://doi.org/10.1007/978-3-031-43421-1_12\">https://doi.org/10.1007/978-3-031-43421-1_12</a>.","short":"N.J. Kouagou, S. Heindorf, C. Demir, A.-C. Ngonga Ngomo, in: Machine Learning and Knowledge Discovery in Databases: Research Track, Springer Nature Switzerland, Cham, 2023.","ieee":"N. J. Kouagou, S. Heindorf, C. Demir, and A.-C. Ngonga Ngomo, “Neural Class Expression Synthesis in ALCHIQ(D),” in <i>Machine Learning and Knowledge Discovery in Databases: Research Track</i>, Cham: Springer Nature Switzerland, 2023.","apa":"Kouagou, N. J., Heindorf, S., Demir, C., &#38; Ngonga Ngomo, A.-C. (2023). Neural Class Expression Synthesis in ALCHIQ(D). In <i>Machine Learning and Knowledge Discovery in Databases: Research Track</i>. European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases, Turin. Springer Nature Switzerland. <a href=\"https://doi.org/10.1007/978-3-031-43421-1_12\">https://doi.org/10.1007/978-3-031-43421-1_12</a>","bibtex":"@inbook{Kouagou_Heindorf_Demir_Ngonga Ngomo_2023, place={Cham}, title={Neural Class Expression Synthesis in ALCHIQ(D)}, DOI={<a href=\"https://doi.org/10.1007/978-3-031-43421-1_12\">10.1007/978-3-031-43421-1_12</a>}, booktitle={Machine Learning and Knowledge Discovery in Databases: Research Track}, publisher={Springer Nature Switzerland}, author={Kouagou, N’Dah Jean and Heindorf, Stefan and Demir, Caglar and Ngonga Ngomo, Axel-Cyrille}, year={2023} }","ama":"Kouagou NJ, Heindorf S, Demir C, Ngonga Ngomo A-C. Neural Class Expression Synthesis in ALCHIQ(D). In: <i>Machine Learning and Knowledge Discovery in Databases: Research Track</i>. Springer Nature Switzerland; 2023. doi:<a href=\"https://doi.org/10.1007/978-3-031-43421-1_12\">10.1007/978-3-031-43421-1_12</a>","mla":"Kouagou, N’Dah Jean, et al. “Neural Class Expression Synthesis in ALCHIQ(D).” <i>Machine Learning and Knowledge Discovery in Databases: Research Track</i>, Springer Nature Switzerland, 2023, doi:<a href=\"https://doi.org/10.1007/978-3-031-43421-1_12\">10.1007/978-3-031-43421-1_12</a>."},"file_date_updated":"2024-05-22T10:46:58Z","oa":"1","place":"Cham","has_accepted_license":"1","conference":{"location":"Turin","start_date":"2023-09-18","name":"European Conference on Machine Learning and Principles and Practice of Knowledge Discovery in Databases","end_date":"2023-09-22"},"status":"public","ddc":["000"],"user_id":"11871","publisher":"Springer Nature Switzerland","_id":"47421"},{"publication":"20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn","department":[{"_id":"151"}],"type":"conference","date_created":"2024-02-13T11:29:58Z","intvolume":"      2425","date_updated":"2024-05-27T07:48:26Z","publication_status":"published","publication_identifier":{"unknown":["978-3-18-092425-0"]},"author":[{"id":"22109","first_name":"Jan","orcid":"0000-0001-9025-9742","last_name":"Schütte","full_name":"Schütte, Jan"},{"id":"21220","full_name":"Sextro, Walter","first_name":"Walter","last_name":"Sextro"}],"title":"Einfluss der Radhubkinematik auf den Reifenverschleiß","year":"2023","language":[{"iso":"ger"}],"series_title":"VDI-Berichte","citation":{"chicago":"Schütte, Jan, and Walter Sextro. “Einfluss der Radhubkinematik auf den Reifenverschleiß.” In <i>20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn</i>, 2425:165–80. VDI-Berichte. VDI Verlag GmbH, 2023.","short":"J. Schütte, W. Sextro, in: 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn, VDI Verlag GmbH, 2023, pp. 165–180.","apa":"Schütte, J., &#38; Sextro, W. (2023). Einfluss der Radhubkinematik auf den Reifenverschleiß. <i>20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn</i>, <i>2425</i>, 165–180.","ieee":"J. Schütte and W. Sextro, “Einfluss der Radhubkinematik auf den Reifenverschleiß,” in <i>20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn</i>, Karlsruhe, 2023, vol. 2425, pp. 165–180.","ama":"Schütte J, Sextro W. Einfluss der Radhubkinematik auf den Reifenverschleiß. In: <i>20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn</i>. Vol 2425. VDI-Berichte. VDI Verlag GmbH; 2023:165-180.","bibtex":"@inproceedings{Schütte_Sextro_2023, series={VDI-Berichte}, title={Einfluss der Radhubkinematik auf den Reifenverschleiß}, volume={2425}, booktitle={20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn}, publisher={VDI Verlag GmbH}, author={Schütte, Jan and Sextro, Walter}, year={2023}, pages={165–180}, collection={VDI-Berichte} }","mla":"Schütte, Jan, and Walter Sextro. “Einfluss der Radhubkinematik auf den Reifenverschleiß.” <i>20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn</i>, vol. 2425, VDI Verlag GmbH, 2023, pp. 165–80."},"conference":{"end_date":"2023-11-09","start_date":"2023-11-08","name":"20. VDI Fachtagung Reifen - Fahrwerk - Fahrbahn","location":"Karlsruhe"},"status":"public","volume":2425,"user_id":"22109","publisher":"VDI Verlag GmbH","_id":"51338","page":"165-180"},{"date_created":"2024-05-27T15:00:52Z","department":[{"_id":"36"},{"_id":"20"},{"_id":"500"}],"type":"book_chapter","publication":"Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert","series_title":"Studien zur religiösen Bildung","language":[{"iso":"ger"}],"author":[{"id":"31047","full_name":"Janus, Richard","first_name":"Richard","orcid":"https://orcid.org/0009-0006-0365-4546","last_name":"Janus"},{"full_name":"Kamcili-Yildiz, Naciye","last_name":"Kamcili-Yildiz","first_name":"Naciye","id":"36874"},{"last_name":"Rose","first_name":"Marion","full_name":"Rose, Marion"}],"year":"2023","title":"Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung ","intvolume":"        26","date_updated":"2024-05-27T15:00:56Z","publication_status":"epub_ahead","place":"Leipzig","citation":{"bibtex":"@inbook{Janus_Kamcili-Yildiz_Rose_2023, place={Leipzig}, series={Studien zur religiösen Bildung}, title={Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung }, volume={26}, booktitle={Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}, publisher={Evangelischer Verlagsanstalt}, author={Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion}, editor={Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion and Schroeter-Witte, Harald}, year={2023}, pages={13–28}, collection={Studien zur religiösen Bildung} }","ama":"Janus R, Kamcili-Yildiz N, Rose M. Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung . In: Janus R, Kamcili-Yildiz N, Rose M, Schroeter-Witte H, eds. <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. Vol 26. Studien zur religiösen Bildung. Evangelischer Verlagsanstalt; 2023:13-28.","mla":"Janus, Richard, et al. “Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung .” <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, edited by Richard Janus et al., vol. 26, Evangelischer Verlagsanstalt, 2023, pp. 13–28.","short":"R. Janus, N. Kamcili-Yildiz, M. Rose, in: R. Janus, N. Kamcili-Yildiz, M. Rose, H. Schroeter-Witte (Eds.), Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, Evangelischer Verlagsanstalt, Leipzig, 2023, pp. 13–28.","chicago":"Janus, Richard, Naciye Kamcili-Yildiz, and Marion Rose. “Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung .” In <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, edited by Richard Janus, Naciye Kamcili-Yildiz, Marion Rose, and Harald Schroeter-Witte, 26:13–28. Studien zur religiösen Bildung. Leipzig: Evangelischer Verlagsanstalt, 2023.","ieee":"R. Janus, N. Kamcili-Yildiz, and M. Rose, “Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung ,” in <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, vol. 26, R. Janus, N. Kamcili-Yildiz, M. Rose, and H. Schroeter-Witte, Eds. Leipzig: Evangelischer Verlagsanstalt, 2023, pp. 13–28.","apa":"Janus, R., Kamcili-Yildiz, N., &#38; Rose, M. (2023). Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung . In R. Janus, N. Kamcili-Yildiz, M. Rose, &#38; H. Schroeter-Witte (Eds.), <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i> (Vol. 26, pp. 13–28). Evangelischer Verlagsanstalt."},"_id":"54466","publisher":"Evangelischer Verlagsanstalt","page":"13-28","editor":[{"last_name":"Janus","first_name":"Richard","full_name":"Janus, Richard"},{"last_name":"Kamcili-Yildiz","first_name":"Naciye","full_name":"Kamcili-Yildiz, Naciye"},{"first_name":"Marion","last_name":"Rose","full_name":"Rose, Marion"},{"full_name":"Schroeter-Witte, Harald","last_name":"Schroeter-Witte","first_name":"Harald"}],"volume":26,"user_id":"31047","status":"public"},{"date_created":"2024-05-27T14:50:46Z","department":[{"_id":"36"},{"_id":"20"},{"_id":"500"}],"type":"book_chapter","citation":{"apa":"Janus, R. (2023). Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag. In R. Janus, N. Kamcili-Yildiz, M. Rose, &#38; H. Schroeter-Witte (Eds.), <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i> (Vol. 26, pp. 201–212).","ieee":"R. Janus, “Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag,” in <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, vol. 26, R. Janus, N. Kamcili-Yildiz, M. Rose, and H. Schroeter-Witte, Eds. 2023, pp. 201–212.","short":"R. Janus, in: R. Janus, N. Kamcili-Yildiz, M. Rose, H. Schroeter-Witte (Eds.), Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, 2023, pp. 201–212.","chicago":"Janus, Richard. “Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag.” In <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, edited by Richard Janus, Naciye Kamcili-Yildiz, Marion Rose, and Harald Schroeter-Witte, 26:201–12. Studien zur religiösen Bildung, 2023.","mla":"Janus, Richard. “Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag.” <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>, edited by Richard Janus et al., vol. 26, 2023, pp. 201–12.","ama":"Janus R. Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag. In: Janus R, Kamcili-Yildiz N, Rose M, Schroeter-Witte H, eds. <i>Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. Vol 26. Studien zur religiösen Bildung. ; 2023:201-212.","bibtex":"@inbook{Janus_2023, series={Studien zur religiösen Bildung}, title={Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel und Kurt Freitag}, volume={26}, booktitle={Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}, author={Janus, Richard}, editor={Janus, Richard and Kamcili-Yildiz, Naciye and Rose, Marion and Schroeter-Witte, Harald}, year={2023}, pages={201–212}, collection={Studien zur religiösen Bildung} }"},"publication":"Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. 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Matthäus 27,33-54.","year":"2023","author":[{"id":"31047","first_name":"Richard","orcid":"https://orcid.org/0009-0006-0365-4546","last_name":"Janus","full_name":"Janus, Richard"}],"publication_status":"published","date_updated":"2024-05-27T15:03:24Z","page":"159-164","publisher":"Evangelischer Verlagsanstalt","_id":"54467","language":[{"iso":"ger"}],"user_id":"31047","editor":[{"full_name":"Schult, Maike","last_name":"Schult","first_name":"Maike"}],"publication":"Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1","citation":{"mla":"Janus, Richard. “Karfreitag. Matthäus 27,33-54.” <i>Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1</i>, edited by Maike Schult, Evangelischer Verlagsanstalt, 2023, pp. 159–64.","bibtex":"@inbook{Janus_2023, place={Leipzig}, title={Karfreitag. Matthäus 27,33-54.}, booktitle={Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1}, publisher={Evangelischer Verlagsanstalt}, author={Janus, Richard}, editor={Schult, Maike}, year={2023}, pages={159–164} }","ama":"Janus R. Karfreitag. Matthäus 27,33-54. In: Schult M, ed. <i>Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1</i>. Evangelischer Verlagsanstalt; 2023:159-164.","ieee":"R. Janus, “Karfreitag. Matthäus 27,33-54.,” in <i>Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1</i>, M. Schult, Ed. Leipzig: Evangelischer Verlagsanstalt, 2023, pp. 159–164.","apa":"Janus, R. (2023). Karfreitag. Matthäus 27,33-54. In M. Schult (Ed.), <i>Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1</i> (pp. 159–164). Evangelischer Verlagsanstalt.","short":"R. Janus, in: M. Schult (Ed.), Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1, Evangelischer Verlagsanstalt, Leipzig, 2023, pp. 159–164.","chicago":"Janus, Richard. “Karfreitag. Matthäus 27,33-54.” In <i>Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1</i>, edited by Maike Schult, 159–64. Leipzig: Evangelischer Verlagsanstalt, 2023."},"date_created":"2024-05-27T15:03:21Z","place":"Leipzig","type":"book_chapter","department":[{"_id":"36"},{"_id":"20"},{"_id":"500"}]},{"_id":"52855","publisher":"EVA","language":[{"iso":"ger"}],"page":"368","editor":[{"full_name":"Janus, Richard","last_name":"Janus","orcid":"https://orcid.org/0009-0006-0365-4546","first_name":"Richard","id":"31047"},{"full_name":"Schroeter-Wittke, Harald","last_name":"Schroeter-Wittke","first_name":"Harald","id":"480"},{"full_name":"Kamcili-Yildiz, Naciye","last_name":"Kamcili-Yildiz","first_name":"Naciye","id":"36874"},{"last_name":"Rose","first_name":"Marion","full_name":"Rose, Marion"}],"user_id":"31047","publication_identifier":{"isbn":["978-3-374-07442-6"]},"year":"2023","title":"Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert","status":"public","date_updated":"2024-05-27T14:52:00Z","publication_status":"published","place":"Leipzig","date_created":"2024-03-25T12:40:20Z","department":[{"_id":"497"}],"type":"book_editor","citation":{"chicago":"Janus, Richard, Harald Schroeter-Wittke, Naciye Kamcili-Yildiz, and Marion Rose, eds. <i>Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. Leipzig: EVA, 2023.","short":"R. Janus, H. Schroeter-Wittke, N. Kamcili-Yildiz, M. Rose, eds., Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, EVA, Leipzig, 2023.","apa":"Janus, R., Schroeter-Wittke, H., Kamcili-Yildiz, N., &#38; Rose, M. (Eds.). (2023). <i>Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. EVA.","ieee":"R. Janus, H. Schroeter-Wittke, N. Kamcili-Yildiz, and M. Rose, Eds., <i>Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. Leipzig: EVA, 2023.","ama":"Janus R, Schroeter-Wittke H, Kamcili-Yildiz N, Rose M, eds. <i>Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. EVA; 2023.","bibtex":"@book{Janus_Schroeter-Wittke_Kamcili-Yildiz_Rose_2023, place={Leipzig}, title={Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert}, publisher={EVA}, year={2023} }","mla":"Janus, Richard, et al., editors. <i>Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert</i>. EVA, 2023."}},{"status":"public","user_id":"51811","volume":30,"page":"4193-4220","publisher":"Emerald","_id":"53232","citation":{"chicago":"Namazi, Mehdi, Madjid Tavana, Emran Mohammadi, and Ali Bonyadi Naeini. “A New Strategic Approach for R&#38;D Project Portfolio Selection Using Efficiency-Uncertainty Maps.” <i>Benchmarking: An International Journal</i> 30, no. 10 (2023): 4193–4220. <a href=\"https://doi.org/10.1108/bij-02-2022-0129\">https://doi.org/10.1108/bij-02-2022-0129</a>.","short":"M. Namazi, M. Tavana, E. Mohammadi, A. Bonyadi Naeini, Benchmarking: An International Journal 30 (2023) 4193–4220.","apa":"Namazi, M., Tavana, M., Mohammadi, E., &#38; Bonyadi Naeini, A. (2023). A new strategic approach for R&#38;D project portfolio selection using efficiency-uncertainty maps. <i>Benchmarking: An International Journal</i>, <i>30</i>(10), 4193–4220. <a href=\"https://doi.org/10.1108/bij-02-2022-0129\">https://doi.org/10.1108/bij-02-2022-0129</a>","ieee":"M. Namazi, M. Tavana, E. Mohammadi, and A. Bonyadi Naeini, “A new strategic approach for R&#38;D project portfolio selection using efficiency-uncertainty maps,” <i>Benchmarking: An International Journal</i>, vol. 30, no. 10, pp. 4193–4220, 2023, doi: <a href=\"https://doi.org/10.1108/bij-02-2022-0129\">10.1108/bij-02-2022-0129</a>.","ama":"Namazi M, Tavana M, Mohammadi E, Bonyadi Naeini A. A new strategic approach for R&#38;D project portfolio selection using efficiency-uncertainty maps. <i>Benchmarking: An International Journal</i>. 2023;30(10):4193-4220. doi:<a href=\"https://doi.org/10.1108/bij-02-2022-0129\">10.1108/bij-02-2022-0129</a>","bibtex":"@article{Namazi_Tavana_Mohammadi_Bonyadi Naeini_2023, title={A new strategic approach for R&#38;D project portfolio selection using efficiency-uncertainty maps}, volume={30}, DOI={<a href=\"https://doi.org/10.1108/bij-02-2022-0129\">10.1108/bij-02-2022-0129</a>}, number={10}, journal={Benchmarking: An International Journal}, publisher={Emerald}, author={Namazi, Mehdi and Tavana, Madjid and Mohammadi, Emran and Bonyadi Naeini, Ali}, year={2023}, pages={4193–4220} }","mla":"Namazi, Mehdi, et al. “A New Strategic Approach for R&#38;D Project Portfolio Selection Using Efficiency-Uncertainty Maps.” <i>Benchmarking: An International Journal</i>, vol. 30, no. 10, Emerald, 2023, pp. 4193–220, doi:<a href=\"https://doi.org/10.1108/bij-02-2022-0129\">10.1108/bij-02-2022-0129</a>."},"date_updated":"2024-05-28T09:31:36Z","publication_status":"published","intvolume":"        30","year":"2023","title":"A new strategic approach for R&D project portfolio selection using efficiency-uncertainty maps","publication_identifier":{"issn":["1463-5771"]},"author":[{"first_name":"Mehdi","last_name":"Namazi","full_name":"Namazi, Mehdi"},{"id":"31858","full_name":"Tavana, Madjid","first_name":"Madjid","last_name":"Tavana"},{"first_name":"Emran","last_name":"Mohammadi","full_name":"Mohammadi, Emran"},{"full_name":"Bonyadi Naeini, Ali","last_name":"Bonyadi Naeini","first_name":"Ali"}],"doi":"10.1108/bij-02-2022-0129","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:sec><jats:title content-type=\"abstract-subheading\">Purpose</jats:title><jats:p>New business practices and the globalization of markets force firms to take innovation as the fundamental pillar of their competitive strategy. Research and Development (R&amp;D) plays a vital role in innovation. As technology advances and product life cycles become shorter, firms rely on R&amp;D as a strategy to invigorate innovation. R&amp;D project portfolio selection is a complex and challenging task. Despite the management's efforts to implement the best project portfolio selection practices, many projects continue to fail or miss their target. The problem is that selecting R&amp;D projects requires a deep understanding of strategic vision and technical capabilities. However, many decision-makers lack technological insight or strategic vision. This article aims to provide a method to capitalize on the expertise of R&amp;D professionals to assist managers in making informed and effective decisions. It also provides a framework for aligning the portfolio of R&amp;D projects with the organizational vision and mission.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Design/methodology/approach</jats:title><jats:p>This article proposes a new strategic approach for R&amp;D project portfolio selection using efficiency-uncertainty maps.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Findings</jats:title><jats:p>The proposed strategy plane helps decision-makers align R&amp;D project portfolios with their strategies to combine a strategic view and numerical analysis in this research. The proposed strategy plane consists of four areas: Exploitation Zone, Challenge Zone, Desperation Zone and Discretion Zone. Mapping the project into this strategic plane would help decision-makers align their project portfolio according to the corporate perspectives.</jats:p></jats:sec><jats:sec><jats:title content-type=\"abstract-subheading\">Originality/value</jats:title><jats:p>The new approach combines the efficiency and uncertainty dimensions in portfolio selection into an integrated framework that: (i) provides a complete representation of the stochastic decision-making processes, (ii) models the endogenous uncertainty inherent in the project selection process and (iii) proposes a computationally practical and visually unique solution procedure for classifying desirable and undesirable R&amp;D projects.</jats:p></jats:sec>"}],"publication":"Benchmarking: An International Journal","issue":"10","type":"journal_article","keyword":["Business and International Management","Strategy and Management"],"department":[{"_id":"277"}],"date_created":"2024-04-04T14:03:24Z"},{"oa":"1","citation":{"ama":"Hälterlein J. Agentenbasierte Modellierung und Simulation im Pandemiemanagement. <i>TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis</i>. 2023;32(1):30-35. doi:<a href=\"https://doi.org/10.14512/tatup.32.1.30\">10.14512/tatup.32.1.30</a>","bibtex":"@article{Hälterlein_2023, title={Agentenbasierte Modellierung und Simulation im Pandemiemanagement}, volume={32}, DOI={<a href=\"https://doi.org/10.14512/tatup.32.1.30\">10.14512/tatup.32.1.30</a>}, number={1}, journal={TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis}, publisher={Oekom Publishers GmbH}, author={Hälterlein, Jens}, year={2023}, pages={30–35} }","mla":"Hälterlein, Jens. “Agentenbasierte Modellierung Und Simulation Im Pandemiemanagement.” <i>TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis</i>, vol. 32, no. 1, Oekom Publishers GmbH, 2023, pp. 30–35, doi:<a href=\"https://doi.org/10.14512/tatup.32.1.30\">10.14512/tatup.32.1.30</a>.","short":"J. Hälterlein, TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis 32 (2023) 30–35.","chicago":"Hälterlein, Jens. “Agentenbasierte Modellierung Und Simulation Im Pandemiemanagement.” <i>TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis</i> 32, no. 1 (2023): 30–35. <a href=\"https://doi.org/10.14512/tatup.32.1.30\">https://doi.org/10.14512/tatup.32.1.30</a>.","apa":"Hälterlein, J. (2023). Agentenbasierte Modellierung und Simulation im Pandemiemanagement. <i>TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis</i>, <i>32</i>(1), 30–35. <a href=\"https://doi.org/10.14512/tatup.32.1.30\">https://doi.org/10.14512/tatup.32.1.30</a>","ieee":"J. Hälterlein, “Agentenbasierte Modellierung und Simulation im Pandemiemanagement,” <i>TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis</i>, vol. 32, no. 1, pp. 30–35, 2023, doi: <a href=\"https://doi.org/10.14512/tatup.32.1.30\">10.14512/tatup.32.1.30</a>."},"quality_controlled":"1","_id":"50603","publisher":"Oekom Publishers GmbH","page":"30-35","volume":32,"user_id":"94837","status":"public","date_created":"2024-01-18T14:05:23Z","department":[{"_id":"36"},{"_id":"11"}],"type":"journal_article","keyword":["General Medicine"],"issue":"1","publication":"TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis","related_material":{"link":[{"url":"https://www.tatup.de/index.php/tatup/article/view/7038","relation":"confirmation"}]},"abstract":[{"lang":"eng","text":"<jats:p>Mathematical models and computer simulations play a crucial role in the context of the COVID-19 crisis for knowledge about the possible course of the pandemic and for appropriate policy decisions. The paper presents results from an ethnographic study of a government-funded R &amp; D project dealing with agent-based modeling and simulation (ABMS) in the context of pandemic management. Based on the assumption that the use of computer simulations in pandemic management is not only a means to an end for political or epidemiological goals but also plays a significant role in determining which goals and strategies appear politically legitimate, the paper reconstructs how insights into the pandemic are generated in ABMS and specifically in the researched project and made accessible for decision-making.</jats:p>"}],"language":[{"iso":"eng"}],"main_file_link":[{"open_access":"1"}],"doi":"10.14512/tatup.32.1.30","publication_identifier":{"issn":["2567-8833","2568-020X"]},"author":[{"id":"94837","last_name":"Hälterlein","first_name":"Jens","full_name":"Hälterlein, Jens"}],"title":"Agentenbasierte Modellierung und Simulation im Pandemiemanagement","year":"2023","intvolume":"        32","date_updated":"2024-07-03T08:08:24Z","publication_status":"published"},{"user_id":"16199","doi":"10.5281/ZENODO.7757178","_id":"54398","publisher":"LibreCat University","date_updated":"2024-07-15T09:37:35Z","title":"Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations","year":"2023","status":"public","author":[{"last_name":"Trautmann","first_name":"Alexander","full_name":"Trautmann, Alexander"},{"full_name":"Stein, Markus","last_name":"Stein","first_name":"Markus"},{"last_name":"Schäfer","first_name":"Felix","full_name":"Schäfer, Felix"},{"last_name":"Anders","first_name":"Daniel","full_name":"Anders, Daniel"},{"first_name":"Cong","last_name":"Ngo","full_name":"Ngo, Cong"},{"first_name":"Johannes Tilmann","last_name":"Steiner","full_name":"Steiner, Johannes Tilmann"},{"id":"138","first_name":"Matthias","last_name":"Reichelt","full_name":"Reichelt, Matthias"},{"full_name":"Chatterjee, Sangam","first_name":"Sangam","last_name":"Chatterjee"},{"first_name":"Torsten","last_name":"Meier","orcid":"0000-0001-8864-2072","full_name":"Meier, Torsten","id":"344"}],"type":"research_data","department":[{"_id":"15"},{"_id":"170"},{"_id":"293"},{"_id":"35"},{"_id":"230"}],"date_created":"2024-05-21T14:19:32Z","abstract":[{"text":"Dataset of the publication “Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations”, A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J. T. Steiner, M. Reichelt, S. Chatterjee, and T. Meier, Proc. SPIE 12419, Ultrafast Phenomena and Nanophotonics XXVII, 124190A (2023) ( https://doi.org/10.1117/12.2650169 ). The zip file includes the data on which the plots are based.","lang":"eng"}],"citation":{"ieee":"A. Trautmann <i>et al.</i>, <i>Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations</i>. LibreCat University, 2023.","apa":"Trautmann, A., Stein, M., Schäfer, F., Anders, D., Ngo, C., Steiner, J. T., Reichelt, M., Chatterjee, S., &#38; Meier, T. (2023). <i>Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations</i>. LibreCat University. <a href=\"https://doi.org/10.5281/ZENODO.7757178\">https://doi.org/10.5281/ZENODO.7757178</a>","chicago":"Trautmann, Alexander, Markus Stein, Felix Schäfer, Daniel Anders, Cong Ngo, Johannes Tilmann Steiner, Matthias Reichelt, Sangam Chatterjee, and Torsten Meier. <i>Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations</i>. LibreCat University, 2023. <a href=\"https://doi.org/10.5281/ZENODO.7757178\">https://doi.org/10.5281/ZENODO.7757178</a>.","short":"A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J.T. Steiner, M. Reichelt, S. Chatterjee, T. Meier, Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations, LibreCat University, 2023.","mla":"Trautmann, Alexander, et al. <i>Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations</i>. LibreCat University, 2023, doi:<a href=\"https://doi.org/10.5281/ZENODO.7757178\">10.5281/ZENODO.7757178</a>.","bibtex":"@book{Trautmann_Stein_Schäfer_Anders_Ngo_Steiner_Reichelt_Chatterjee_Meier_2023, title={Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations}, DOI={<a href=\"https://doi.org/10.5281/ZENODO.7757178\">10.5281/ZENODO.7757178</a>}, publisher={LibreCat University}, author={Trautmann, Alexander and Stein, Markus and Schäfer, Felix and Anders, Daniel and Ngo, Cong and Steiner, Johannes Tilmann and Reichelt, Matthias and Chatterjee, Sangam and Meier, Torsten}, year={2023} }","ama":"Trautmann A, Stein M, Schäfer F, et al. <i>Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations</i>. LibreCat University; 2023. doi:<a href=\"https://doi.org/10.5281/ZENODO.7757178\">10.5281/ZENODO.7757178</a>"}},{"abstract":[{"text":"PDF versions of the Music Encoding Initiative Guidelines 5.0 [2023]: This version represents the 5.0 release of the Music Encoding Initiative Guidelines.","lang":"eng"}],"citation":{"apa":"Roland, P. D., &#38; Kepper, J. (Eds.). (2023). <i>MEI: The Music Encoding Initiative Guidelines (PDF)</i>. Zenodo. <a href=\"https://doi.org/10.5281/ZENODO.10040258\">https://doi.org/10.5281/ZENODO.10040258</a>","mla":"Roland, Perry D., and Johannes Kepper, editors. <i>MEI: The Music Encoding Initiative Guidelines (PDF)</i>. Zenodo, 2023, doi:<a href=\"https://doi.org/10.5281/ZENODO.10040258\">10.5281/ZENODO.10040258</a>.","ieee":"P. D. Roland and J. Kepper, Eds., <i>MEI: The Music Encoding Initiative Guidelines (PDF)</i>. Zenodo, 2023.","short":"P.D. Roland, J. Kepper, eds., MEI: The Music Encoding Initiative Guidelines (PDF), Zenodo, 2023.","ama":"Roland PD, Kepper J, eds. <i>MEI: The Music Encoding Initiative Guidelines (PDF)</i>. Zenodo; 2023. doi:<a href=\"https://doi.org/10.5281/ZENODO.10040258\">10.5281/ZENODO.10040258</a>","chicago":"Roland, Perry D., and Johannes Kepper, eds. <i>MEI: The Music Encoding Initiative Guidelines (PDF)</i>. Zenodo, 2023. <a href=\"https://doi.org/10.5281/ZENODO.10040258\">https://doi.org/10.5281/ZENODO.10040258</a>.","bibtex":"@book{Roland_Kepper_2023, title={MEI: The Music Encoding Initiative Guidelines (PDF)}, DOI={<a href=\"https://doi.org/10.5281/ZENODO.10040258\">10.5281/ZENODO.10040258</a>}, publisher={Zenodo}, year={2023} }"},"type":"book_editor","department":[{"_id":"874"}],"oa":"1","date_created":"2024-08-28T11:43:51Z","publication_status":"published","date_updated":"2024-08-28T14:08:24Z","year":"2023","status":"public","title":"MEI: The Music Encoding Initiative Guidelines (PDF)","user_id":"1684","doi":"10.5281/ZENODO.10040258","editor":[{"full_name":"Roland, Perry D.","first_name":"Perry D.","last_name":"Roland"},{"id":"1684","full_name":"Kepper, Johannes","first_name":"Johannes","last_name":"Kepper","orcid":"0000-0003-4891-260X"}],"main_file_link":[{"open_access":"1","url":"https://music-encoding.org/guidelines/v5/MEI_Guidelines_v5.0.pdf"}],"_id":"55836","language":[{"iso":"eng"}],"publisher":"Zenodo"},{"date_created":"2024-09-02T10:29:03Z","department":[{"_id":"157"}],"type":"book","citation":{"ieee":"M. S. Rossel, G. Meschut, C. R. Bielak, and M. Otroshi, <i>Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung</i>, vol. 610.  Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2023.","mla":"Rossel, Moritz Sebastian, et al. <i>Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung</i>.  Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2023.","apa":"Rossel, M. S., Meschut, G., Bielak, C. R., &#38; Otroshi, M. (2023). <i>Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung</i> (Vol. 610).  Europäische Forschungsgesellschaft für Blechverarbeitung e.V.","bibtex":"@book{Rossel_Meschut_Bielak_Otroshi_2023, series={EFB-Forschungsbericht}, title={Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung}, volume={610}, publisher={ Europäische Forschungsgesellschaft für Blechverarbeitung e.V.}, author={Rossel, Moritz Sebastian and Meschut, Gerson and Bielak, Christian Roman and Otroshi, Mortaza}, year={2023}, collection={EFB-Forschungsbericht} }","short":"M.S. Rossel, G. Meschut, C.R. Bielak, M. Otroshi, Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung,  Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2023.","ama":"Rossel MS, Meschut G, Bielak CR, Otroshi M. <i>Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung</i>. Vol 610.  Europäische Forschungsgesellschaft für Blechverarbeitung e.V.; 2023.","chicago":"Rossel, Moritz Sebastian, Gerson Meschut, Christian Roman Bielak, and Mortaza Otroshi. <i>Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung</i>. Vol. 610. EFB-Forschungsbericht.  Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2023."},"series_title":"EFB-Forschungsbericht","_id":"55960","publisher":" Europäische Forschungsgesellschaft für Blechverarbeitung e.V.","language":[{"iso":"ger"}],"page":"124","volume":610,"user_id":"44503","publication_identifier":{"isbn":["9783867766791"]},"author":[{"full_name":"Rossel, Moritz Sebastian","first_name":"Moritz Sebastian","last_name":"Rossel","id":"44503"},{"id":"32056","full_name":"Meschut, Gerson","orcid":"0000-0002-2763-1246","first_name":"Gerson","last_name":"Meschut"},{"full_name":"Bielak, Christian Roman","last_name":"Bielak","first_name":"Christian Roman","id":"34782"},{"last_name":"Otroshi","first_name":"Mortaza","full_name":"Otroshi, Mortaza"}],"status":"public","title":"Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung","year":"2023","intvolume":"       610","date_updated":"2024-09-02T10:29:38Z","publication_status":"published"},{"user_id":"21675","editor":[{"full_name":"Kuhn, Barbara","first_name":"Barbara","last_name":"Kuhn"},{"first_name":"Marita","last_name":"Liebermann","full_name":"Liebermann, Marita"}],"page":"28","publisher":"Viella Libreria Editrice","_id":"41119","language":[{"iso":"eng"}],"date_updated":"2024-09-03T10:29:15Z","title":"Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic","year":"2023","status":"public","author":[{"id":"21675","first_name":"Sabine","last_name":"Schmitz","full_name":"Schmitz, Sabine"}],"type":"book_chapter","date_created":"2023-01-31T08:15:21Z","place":"Rom","publication":"Letteratura come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration und Literatur","citation":{"short":"S. Schmitz, in: B. Kuhn, M. Liebermann (Eds.), Letteratura Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur Frage von Migration Und Literatur, Viella Libreria Editrice, Rom, 2023, p. 28.","chicago":"Schmitz, Sabine. “Brückenbau Oder Steg Der Erinnerung? Narrationen Zur Italienischen Arbeitsmigration Des 20. Jahrhunderts Im Aktuellen Belgischen Comic.” In <i>Letteratura Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur Frage von Migration Und Literatur</i>, edited by Barbara Kuhn and Marita Liebermann, 28. Rom: Viella Libreria Editrice, 2023.","ieee":"S. Schmitz, “Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic,” in <i>Letteratura come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration und Literatur</i>, B. Kuhn and M. Liebermann, Eds. Rom: Viella Libreria Editrice, 2023, p. 28.","apa":"Schmitz, S. (2023). Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic. In B. Kuhn &#38; M. Liebermann (Eds.), <i>Letteratura come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration und Literatur</i> (p. 28). Viella Libreria Editrice.","bibtex":"@inbook{Schmitz_2023, place={Rom}, title={Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic}, booktitle={Letteratura come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration und Literatur}, publisher={Viella Libreria Editrice}, author={Schmitz, Sabine}, editor={Kuhn, Barbara and Liebermann, Marita}, year={2023}, pages={28} }","ama":"Schmitz S. Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic. In: Kuhn B, Liebermann M, eds. <i>Letteratura Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur Frage von Migration Und Literatur</i>. Viella Libreria Editrice; 2023:28.","mla":"Schmitz, Sabine. “Brückenbau Oder Steg Der Erinnerung? Narrationen Zur Italienischen Arbeitsmigration Des 20. Jahrhunderts Im Aktuellen Belgischen Comic.” <i>Letteratura Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur Frage von Migration Und Literatur</i>, edited by Barbara Kuhn and Marita Liebermann, Viella Libreria Editrice, 2023, p. 28."}},{"author":[{"last_name":"Zander","first_name":"Kerstin K.","full_name":"Zander, Kerstin K."},{"id":"77643","last_name":"Rieskamp","first_name":"Jonas","full_name":"Rieskamp, Jonas"},{"full_name":"Mirbabaie, Milad","last_name":"Mirbabaie","first_name":"Milad","id":"88691"},{"full_name":"Alazab, Mamoun","last_name":"Alazab","first_name":"Mamoun"},{"last_name":"Nguyen","first_name":"Duy","full_name":"Nguyen, Duy"}],"publication_identifier":{"issn":["0921-030X","1573-0840"]},"year":"2023","status":"public","title":"Responses to heat waves: what can Twitter data tell us?","publication_status":"published","date_updated":"2023-01-14T10:52:35Z","publisher":"Springer Science and Business Media LLC","_id":"36834","language":[{"iso":"eng"}],"user_id":"77643","doi":"10.1007/s11069-023-05824-2","citation":{"mla":"Zander, Kerstin K., et al. “Responses to Heat Waves: What Can Twitter Data Tell Us?” <i>Natural Hazards</i>, Springer Science and Business Media LLC, 2023, doi:<a href=\"https://doi.org/10.1007/s11069-023-05824-2\">10.1007/s11069-023-05824-2</a>.","ama":"Zander KK, Rieskamp J, Mirbabaie M, Alazab M, Nguyen D. Responses to heat waves: what can Twitter data tell us? <i>Natural Hazards</i>. Published online 2023. doi:<a href=\"https://doi.org/10.1007/s11069-023-05824-2\">10.1007/s11069-023-05824-2</a>","bibtex":"@article{Zander_Rieskamp_Mirbabaie_Alazab_Nguyen_2023, title={Responses to heat waves: what can Twitter data tell us?}, DOI={<a href=\"https://doi.org/10.1007/s11069-023-05824-2\">10.1007/s11069-023-05824-2</a>}, journal={Natural Hazards}, publisher={Springer Science and Business Media LLC}, author={Zander, Kerstin K. and Rieskamp, Jonas and Mirbabaie, Milad and Alazab, Mamoun and Nguyen, Duy}, year={2023} }","apa":"Zander, K. K., Rieskamp, J., Mirbabaie, M., Alazab, M., &#38; Nguyen, D. (2023). Responses to heat waves: what can Twitter data tell us? <i>Natural Hazards</i>. <a href=\"https://doi.org/10.1007/s11069-023-05824-2\">https://doi.org/10.1007/s11069-023-05824-2</a>","ieee":"K. K. Zander, J. Rieskamp, M. Mirbabaie, M. Alazab, and D. Nguyen, “Responses to heat waves: what can Twitter data tell us?,” <i>Natural Hazards</i>, 2023, doi: <a href=\"https://doi.org/10.1007/s11069-023-05824-2\">10.1007/s11069-023-05824-2</a>.","short":"K.K. Zander, J. Rieskamp, M. Mirbabaie, M. Alazab, D. Nguyen, Natural Hazards (2023).","chicago":"Zander, Kerstin K., Jonas Rieskamp, Milad Mirbabaie, Mamoun Alazab, and Duy Nguyen. “Responses to Heat Waves: What Can Twitter Data Tell Us?” <i>Natural Hazards</i>, 2023. <a href=\"https://doi.org/10.1007/s11069-023-05824-2\">https://doi.org/10.1007/s11069-023-05824-2</a>."},"publication":"Natural Hazards","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title><jats:p>Increasing average temperatures and heat waves are having devasting impacts on human health and well-being but studies of heat impacts and how people adapt are rare and often confined to specific locations. In this study, we explore how analysis of conversations on social media can be used to understand how people feel about heat waves and how they respond. We collected global Twitter data over four months (from January to April 2022) using predefined hashtags about heat waves. Topic modelling identified five topics. The largest (one-third of all tweets) was related to sports events. The remaining two-thirds could be allocated to four topics connected to communication about climate-related heat or heat waves. Two of these were on the impacts of heat and heat waves (health impacts 20%; social impacts 16%), one was on extreme weather and climate change attribution (17%) and the last one was on perceptions and warning (13%). The number of tweets in each week corresponded well with major heat wave occurrences in Argentina, Australia, the USA and South Asia (India and Pakistan), indicating that people posting tweets were aware of the threat from heat and its impacts on the society. Among the words frequently used within the topic ‘Social impacts’ were ‘air-conditioning’ and ‘electricity’, suggesting links between coping strategies and financial pressure. Apart from analysing the content of tweets, new insights were also obtained from analysing how people engaged with Twitter tweets about heat or heat waves. We found that tweets posted early, and which were then shared by other influential Twitter users, were among the most popular. Finally, we found that the most popular tweets belonged to individual scientists or respected news outlets, with no evidence that misinformation about climate change-related heat is widespread.\r\n</jats:p>"}],"date_created":"2023-01-14T10:51:36Z","keyword":["Earth and Planetary Sciences (miscellaneous)","Atmospheric Science","Water Science and Technology"],"type":"journal_article"},{"status":"public","title":"Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory","year":"2023","author":[{"full_name":"Cui, Guo-Dong","first_name":"Guo-Dong","last_name":"Cui"},{"full_name":"Schweickert, Lucas","last_name":"Schweickert","first_name":"Lucas"},{"id":"85353","first_name":"Klaus D.","last_name":"Jöns","full_name":"Jöns, Klaus D."},{"full_name":"Namazi, Mehdi","last_name":"Namazi","first_name":"Mehdi"},{"first_name":"Thomas","last_name":"Lettner","full_name":"Lettner, Thomas"},{"first_name":"Katharina D.","last_name":"Zeuner","full_name":"Zeuner, Katharina D."},{"full_name":"Montaña, Lara Scavuzzo","first_name":"Lara Scavuzzo","last_name":"Montaña"},{"first_name":"Saimon Filipe Covre da","last_name":"Silva","full_name":"Silva, Saimon Filipe Covre da"},{"first_name":"Marcus","last_name":"Reindl","full_name":"Reindl, Marcus"},{"full_name":"Huang, Huiying","last_name":"Huang","first_name":"Huiying"},{"last_name":"Trotta","first_name":"Rinaldo","full_name":"Trotta, Rinaldo"},{"full_name":"Rastelli, Armando","last_name":"Rastelli","first_name":"Armando"},{"first_name":"Val","last_name":"Zwiller","full_name":"Zwiller, Val"},{"full_name":"Figueroa, Eden","first_name":"Eden","last_name":"Figueroa"}],"date_updated":"2023-02-13T11:28:56Z","_id":"42049","language":[{"iso":"eng"}],"user_id":"14931","publication":"arXiv:2301.10326","citation":{"mla":"Cui, Guo-Dong, et al. “Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory.” <i>ArXiv:2301.10326</i>, 2023.","bibtex":"@article{Cui_Schweickert_Jöns_Namazi_Lettner_Zeuner_Montaña_Silva_Reindl_Huang_et al._2023, title={Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory}, journal={arXiv:2301.10326}, author={Cui, Guo-Dong and Schweickert, Lucas and Jöns, Klaus D. and Namazi, Mehdi and Lettner, Thomas and Zeuner, Katharina D. and Montaña, Lara Scavuzzo and Silva, Saimon Filipe Covre da and Reindl, Marcus and Huang, Huiying and et al.}, year={2023} }","ama":"Cui G-D, Schweickert L, Jöns KD, et al. Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory. <i>arXiv:230110326</i>. Published online 2023.","ieee":"G.-D. Cui <i>et al.</i>, “Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory,” <i>arXiv:2301.10326</i>. 2023.","apa":"Cui, G.-D., Schweickert, L., Jöns, K. D., Namazi, M., Lettner, T., Zeuner, K. D., Montaña, L. S., Silva, S. F. C. da, Reindl, M., Huang, H., Trotta, R., Rastelli, A., Zwiller, V., &#38; Figueroa, E. (2023). Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory. In <i>arXiv:2301.10326</i>.","chicago":"Cui, Guo-Dong, Lucas Schweickert, Klaus D. Jöns, Mehdi Namazi, Thomas Lettner, Katharina D. Zeuner, Lara Scavuzzo Montaña, et al. “Coherent Quantum Interconnection between On-Demand Quantum Dot Single  Photons and a Resonant Atomic Quantum Memory.” <i>ArXiv:2301.10326</i>, 2023.","short":"G.-D. Cui, L. Schweickert, K.D. Jöns, M. Namazi, T. Lettner, K.D. Zeuner, L.S. Montaña, S.F.C. da Silva, M. Reindl, H. Huang, R. Trotta, A. Rastelli, V. Zwiller, E. Figueroa, ArXiv:2301.10326 (2023)."},"abstract":[{"lang":"eng","text":"Long-range quantum communication requires the development of in-out\r\nlight-matter interfaces to achieve a quantum advantage in entanglement\r\ndistribution. Ideally, these quantum interconnections should be as fast as\r\npossible to achieve high-rate entangled qubits distribution. Here, we\r\ndemonstrate the coherent quanta exchange between single photons generated\r\non-demand from a GaAs quantum dot and atomic ensemble in a $^{87}$Rb vapor\r\nquantum memory. Through an open quantum system analysis, we demonstrate the\r\nmapping between the quantized electric field of photons and the coherence of\r\nthe atomic ensemble. Our results play a pivotal role in understanding quantum\r\nlight-matter interactions at the short time scales required to build fast\r\nhybrid quantum networks."}],"external_id":{"arxiv":["2301.10326"]},"date_created":"2023-02-13T11:25:45Z","type":"preprint","department":[{"_id":"642"}]},{"language":[{"iso":"eng"}],"doi":"10.1257/aeri.20210275","author":[{"full_name":"Balsmeier, Benjamin","first_name":"Benjamin","last_name":"Balsmeier"},{"full_name":"Fleming, Lee","first_name":"Lee","last_name":"Fleming"},{"first_name":"Sonja","last_name":"Lück","orcid":"0000-0003-0380-1965","full_name":"Lück, Sonja","id":"950"}],"publication_identifier":{"issn":["2640-205X","2640-2068"]},"year":"2023","title":"Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials","intvolume":"         5","publication_status":"published","date_updated":"2023-02-28T20:35:11Z","date_created":"2023-02-28T20:28:16Z","department":[{"_id":"200"},{"_id":"281"},{"_id":"475"}],"keyword":["Management","Monitoring","Policy and Law","Geography","Planning and Development"],"type":"journal_article","issue":"1","publication":"American Economic Review: Insights","abstract":[{"lang":"eng","text":"<jats:p> We propose a new method to estimate and isolate the localization of knowledge spillovers due to the physical presence of a person, using after-application but pre-grant deaths of differently located coinventors of the same patent. The approach estimates the differences in local citations between the deceased and still-living inventors at increasingly distant radii. Patents receive 26 percent fewer citations from within a radius of 20 miles around the deceased, relative to still-living coinventors. Differences attenuate with time and distance, are stronger when still-living coinventors live farther from the deceased, and hold for a subsample of possibly premature deaths. (JEL O31, O33, O34, R32) </jats:p>"}],"publisher":"American Economic Association","_id":"42638","page":"21-33","volume":5,"user_id":"950","status":"public","citation":{"bibtex":"@article{Balsmeier_Fleming_Lück_2023, title={Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials}, volume={5}, DOI={<a href=\"https://doi.org/10.1257/aeri.20210275\">10.1257/aeri.20210275</a>}, number={1}, journal={American Economic Review: Insights}, publisher={American Economic Association}, author={Balsmeier, Benjamin and Fleming, Lee and Lück, Sonja}, year={2023}, pages={21–33} }","ama":"Balsmeier B, Fleming L, Lück S. Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials. <i>American Economic Review: Insights</i>. 2023;5(1):21-33. doi:<a href=\"https://doi.org/10.1257/aeri.20210275\">10.1257/aeri.20210275</a>","mla":"Balsmeier, Benjamin, et al. “Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials.” <i>American Economic Review: Insights</i>, vol. 5, no. 1, American Economic Association, 2023, pp. 21–33, doi:<a href=\"https://doi.org/10.1257/aeri.20210275\">10.1257/aeri.20210275</a>.","chicago":"Balsmeier, Benjamin, Lee Fleming, and Sonja Lück. “Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials.” <i>American Economic Review: Insights</i> 5, no. 1 (2023): 21–33. <a href=\"https://doi.org/10.1257/aeri.20210275\">https://doi.org/10.1257/aeri.20210275</a>.","short":"B. Balsmeier, L. Fleming, S. Lück, American Economic Review: Insights 5 (2023) 21–33.","ieee":"B. Balsmeier, L. Fleming, and S. Lück, “Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials,” <i>American Economic Review: Insights</i>, vol. 5, no. 1, pp. 21–33, 2023, doi: <a href=\"https://doi.org/10.1257/aeri.20210275\">10.1257/aeri.20210275</a>.","apa":"Balsmeier, B., Fleming, L., &#38; Lück, S. (2023). Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials. <i>American Economic Review: Insights</i>, <i>5</i>(1), 21–33. <a href=\"https://doi.org/10.1257/aeri.20210275\">https://doi.org/10.1257/aeri.20210275</a>"}},{"_id":"43189","publisher":"SPIE ","user_id":"16199","volume":12419,"status":"public","citation":{"ieee":"T. Meier <i>et al.</i>, “Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields,” in <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, 2023, vol. 12419, doi: <a href=\"https://doi.org/10.1117/12.2650291\">10.1117/12.2650291</a>.","apa":"Meier, T., Stein, M., Schäfer, F., Anders, D., Littmann, J. H., Fey, M., Trautmann, A., Ngo, C., Steiner, J. T., Reichelt, M., Fuchs, C., Volz, K., &#38; Chatterjee, S. (2023). Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields. <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, <i>12419</i>, Article 1241909. <a href=\"https://doi.org/10.1117/12.2650291\">https://doi.org/10.1117/12.2650291</a>","chicago":"Meier, Torsten, M. Stein, F. Schäfer, D. Anders, J. H. Littmann, M. Fey, Alexander Trautmann, et al. “Experimental Studies of the Excitonic Nonlinear Response of GaAs-Based Type-I and Type-II Quantum Well Structures Interacting with Optical and Terahertz Fields.” In <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, Vol. 12419. SPIE Proceedings. SPIE , 2023. <a href=\"https://doi.org/10.1117/12.2650291\">https://doi.org/10.1117/12.2650291</a>.","short":"T. Meier, M. Stein, F. Schäfer, D. Anders, J.H. Littmann, M. Fey, A. Trautmann, C. Ngo, J.T. Steiner, M. Reichelt, C. Fuchs, K. Volz, S. Chatterjee, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE , 2023.","mla":"Meier, Torsten, et al. “Experimental Studies of the Excitonic Nonlinear Response of GaAs-Based Type-I and Type-II Quantum Well Structures Interacting with Optical and Terahertz Fields.” <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, vol. 12419, 1241909, SPIE , 2023, doi:<a href=\"https://doi.org/10.1117/12.2650291\">10.1117/12.2650291</a>.","bibtex":"@inproceedings{Meier_Stein_Schäfer_Anders_Littmann_Fey_Trautmann_Ngo_Steiner_Reichelt_et al._2023, series={SPIE Proceedings}, title={Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields}, volume={12419}, DOI={<a href=\"https://doi.org/10.1117/12.2650291\">10.1117/12.2650291</a>}, number={1241909}, booktitle={Ultrafast Phenomena and Nanophotonics XXVII}, publisher={SPIE }, author={Meier, Torsten and Stein, M. and Schäfer, F. and Anders, D. and Littmann, J. H. and Fey, M. and Trautmann, Alexander and Ngo, C. and Steiner, J. T. and Reichelt, Matthias and et al.}, year={2023}, collection={SPIE Proceedings} }","ama":"Meier T, Stein M, Schäfer F, et al. Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields. In: <i>Ultrafast Phenomena and Nanophotonics XXVII</i>. Vol 12419. SPIE Proceedings. SPIE ; 2023. doi:<a href=\"https://doi.org/10.1117/12.2650291\">10.1117/12.2650291</a>"},"article_number":"1241909","series_title":"SPIE Proceedings","language":[{"iso":"eng"}],"doi":"10.1117/12.2650291","year":"2023","title":"Experimental studies of the excitonic nonlinear response of GaAs-based type-I and type-II quantum well structures interacting with optical and terahertz fields","author":[{"full_name":"Meier, Torsten","orcid":"0000-0001-8864-2072","first_name":"Torsten","last_name":"Meier","id":"344"},{"last_name":"Stein","first_name":"M.","full_name":"Stein, M."},{"full_name":"Schäfer, F.","first_name":"F.","last_name":"Schäfer"},{"last_name":"Anders","first_name":"D.","full_name":"Anders, D."},{"full_name":"Littmann, J. H.","first_name":"J. H.","last_name":"Littmann"},{"last_name":"Fey","first_name":"M.","full_name":"Fey, M."},{"first_name":"Alexander","last_name":"Trautmann","full_name":"Trautmann, Alexander","id":"38163"},{"full_name":"Ngo, C.","last_name":"Ngo","first_name":"C."},{"first_name":"J. T.","last_name":"Steiner","full_name":"Steiner, J. T."},{"first_name":"Matthias","last_name":"Reichelt","full_name":"Reichelt, Matthias","id":"138"},{"last_name":"Fuchs","first_name":"C.","full_name":"Fuchs, C."},{"first_name":"K.","last_name":"Volz","full_name":"Volz, K."},{"full_name":"Chatterjee, S.","last_name":"Chatterjee","first_name":"S."}],"date_updated":"2023-04-20T14:42:33Z","publication_status":"published","intvolume":"     12419","date_created":"2023-03-29T20:15:43Z","type":"conference","department":[{"_id":"293"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"publication":"Ultrafast Phenomena and Nanophotonics XXVII","abstract":[{"text":"The nonlinear optical response of quantum well excitons is investigated experimentally using polarization resolved four wave mixing, optical-pump optical-probe, and optical-pump Terahertz-probe spectroscopy. The four-wave mixing data reveal clear signatures of coherent biexcitons which concur with straight-forward polarization selection rules at the Γ point. The type-I samples show the well-established time-domain beating signatures in the transients as well as the corresponding spectral signatures clearly. The latter are also present in type-II samples; however, the smaller exciton and biexciton binding energies in these structures infer longer beating times which, in turn, are accompanied by faster dephasing of the type-II exciton coherences. Furthermore, the THz absorption following spectrally narrow, picosecond excitation at energies in the vicinity of the 1s exciton resonance are discussed. Here, the optical signatures yield the well-established redshifts and blueshifts for the appropriate polarization geometries in type-I quantum well samples also termed “AC Stark Effect”. The THz probe reveals intriguing spectral features which can be ascribed to coherent negative absorption following an excitation into a virtual state for an excitation below the 1s exciton resonance. Furthermore, the scattering and ionization of excitons is discussed for several excitation geometries yielding control rules for elastic and inelastic quasiparticle collisions.","lang":"eng"}]},{"citation":{"apa":"Meier, T., Trautmann, A., Stein, M., Schäfer, F., Anders, D., Ngo, C., Steiner, J. T., Reichelt, M., &#38; Chatterjee, S. (2023). Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations. <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, <i>12419</i>, Article 124190A. <a href=\"https://doi.org/10.1117/12.2650169\">https://doi.org/10.1117/12.2650169</a>","ieee":"T. Meier <i>et al.</i>, “Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations,” in <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, 2023, vol. 12419, doi: <a href=\"https://doi.org/10.1117/12.2650169\">10.1117/12.2650169</a>.","chicago":"Meier, Torsten, Alexander Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J. T. Steiner, Matthias Reichelt, and S. Chatterjee. “Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.” In <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, Vol. 12419. SPIE Proceedings. SPIE, 2023. <a href=\"https://doi.org/10.1117/12.2650169\">https://doi.org/10.1117/12.2650169</a>.","short":"T. Meier, A. Trautmann, M. Stein, F. Schäfer, D. Anders, C. Ngo, J.T. Steiner, M. Reichelt, S. Chatterjee, in: Ultrafast Phenomena and Nanophotonics XXVII, SPIE, 2023.","mla":"Meier, Torsten, et al. “Analysis of the Nonlinear Optical Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.” <i>Ultrafast Phenomena and Nanophotonics XXVII</i>, vol. 12419, 124190A, SPIE, 2023, doi:<a href=\"https://doi.org/10.1117/12.2650169\">10.1117/12.2650169</a>.","ama":"Meier T, Trautmann A, Stein M, et al. Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations. In: <i>Ultrafast Phenomena and Nanophotonics XXVII</i>. Vol 12419. SPIE Proceedings. SPIE; 2023. doi:<a href=\"https://doi.org/10.1117/12.2650169\">10.1117/12.2650169</a>","bibtex":"@inproceedings{Meier_Trautmann_Stein_Schäfer_Anders_Ngo_Steiner_Reichelt_Chatterjee_2023, series={SPIE Proceedings}, title={Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations}, volume={12419}, DOI={<a href=\"https://doi.org/10.1117/12.2650169\">10.1117/12.2650169</a>}, number={124190A}, booktitle={Ultrafast Phenomena and Nanophotonics XXVII}, publisher={SPIE}, author={Meier, Torsten and Trautmann, Alexander and Stein, M. and Schäfer, F. and Anders, D. and Ngo, C. and Steiner, J. T. and Reichelt, Matthias and Chatterjee, S.}, year={2023}, collection={SPIE Proceedings} }"},"user_id":"16199","volume":12419,"_id":"43190","publisher":"SPIE","status":"public","type":"conference","department":[{"_id":"293"},{"_id":"35"},{"_id":"15"},{"_id":"170"},{"_id":"230"}],"date_created":"2023-03-29T20:22:19Z","abstract":[{"text":"The nonlinear optical response of quantum well excitons excited by optical fields is analyzed by numerical solutions of the semiconductor Bloch equations. Differential absorption spectra are computed for resonant pumping at the exciton resonance and the dependence of the absorption changes on the polarization directions of the pump and probe pulses is investigated. Coherent biexcitonic many-body correlations are included in our approach up to third-order in the optical fields. Results are presented for spatially-direct type-I and spatiallyindirect type-II quantum well systems. Due to the spatial inhomogeneity, in type-II structures a finite coupling between excitons of opposite spins exists already on the Hartree-Fock level and contributes to the absorption changes for the case of opposite circularly polarized pump and probe pulses.","lang":"eng"}],"publication":"Ultrafast Phenomena and Nanophotonics XXVII","doi":"10.1117/12.2650169","article_number":"124190A","language":[{"iso":"eng"}],"series_title":"SPIE Proceedings","publication_status":"published","date_updated":"2023-04-20T14:41:53Z","intvolume":"     12419","year":"2023","title":"Analysis of the nonlinear optical response of excitons in type-I and type-II quantum wells including many-body correlations","author":[{"id":"344","full_name":"Meier, Torsten","first_name":"Torsten","orcid":"0000-0001-8864-2072","last_name":"Meier"},{"full_name":"Trautmann, Alexander","last_name":"Trautmann","first_name":"Alexander","id":"38163"},{"full_name":"Stein, M.","last_name":"Stein","first_name":"M."},{"first_name":"F.","last_name":"Schäfer","full_name":"Schäfer, F."},{"first_name":"D.","last_name":"Anders","full_name":"Anders, D."},{"full_name":"Ngo, C.","last_name":"Ngo","first_name":"C."},{"last_name":"Steiner","first_name":"J. T.","full_name":"Steiner, J. T."},{"id":"138","last_name":"Reichelt","first_name":"Matthias","full_name":"Reichelt, Matthias"},{"first_name":"S.","last_name":"Chatterjee","full_name":"Chatterjee, S."}]},{"year":"2023","title":"Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete","author":[{"full_name":"Josch, Sebastian","last_name":"Josch","first_name":"Sebastian","id":"38243"},{"full_name":"Jesinghausen, Steffen","orcid":"https://orcid.org/0000-0003-2611-5298","last_name":"Jesinghausen","first_name":"Steffen","id":"3959"},{"id":"464","last_name":"Schmid","first_name":"Hans-Joachim","orcid":"000-0001-8590-1921","full_name":"Schmid, Hans-Joachim"}],"publication_identifier":{"issn":["1617-8106"]},"date_updated":"2023-04-27T11:19:08Z","publication_status":"published","intvolume":"        33","main_file_link":[{"url":"https://www.degruyter.com/document/doi/10.1515/arh-2022-0140/html","open_access":"1"}],"language":[{"iso":"eng"}],"doi":"10.1515/arh-2022-0140","issue":"1","publication":"Applied Rheology","abstract":[{"lang":"eng","text":"<jats:title>Abstract</jats:title>\r\n               <jats:p>The accessibility to rheological parameters for concrete is becoming more and more relevant. This is mainly related to the constantly emerging challenges, such as not only the development of high-strength concretes is progressing very fast but also the simulation of the flow behaviour is of high importance. The main problem, however, is that the rheological characterisation of fresh concrete is not possible via commercial rheometers. The so-called concrete rheometers provide valuable relative values for comparing different concretes, but they cannot measure absolute values. Therefore, we developed an adaptive coaxial concrete rheometer (ACCR) that allows the measurement of fresh concrete with particles up to <jats:inline-formula>\r\n                     <jats:alternatives>\r\n                        <jats:inline-graphic xmlns:xlink=\"http://www.w3.org/1999/xlink\" xlink:href=\"graphic/j_arh-2022-0140_eq_001.png\" />\r\n                        <m:math xmlns:m=\"http://www.w3.org/1998/Math/MathML\">\r\n                           <m:msub>\r\n                              <m:mrow>\r\n                                 <m:mi>d</m:mi>\r\n                              </m:mrow>\r\n                              <m:mrow>\r\n                                 <m:mi mathvariant=\"normal\">max</m:mi>\r\n                              </m:mrow>\r\n                           </m:msub>\r\n                           <m:mo>=</m:mo>\r\n                           <m:mn>5.5</m:mn>\r\n                           <m:mspace width=\".5em\" />\r\n                           <m:mi mathvariant=\"normal\">mm</m:mi>\r\n                        </m:math>\r\n                        <jats:tex-math>{d}_{{\\rm{\\max }}}=5.5\\hspace{.5em}{\\rm{mm}}</jats:tex-math>\r\n                     </jats:alternatives>\r\n                  </jats:inline-formula>. The comparison of the ACCR with a commercial rheometer showed very good agreement for selected test materials (Newtonian fluid, shear thinning fluid, suspension, and yield stress fluid), so that self-compacting concrete was subsequently measured. Since these measurements showed a very high reproducibility, the rheological properties of the fresh concrete could be determined with high accuracy. The common flow models (Bingham (B), Herschel–Bulkley, modified Bingham (MB) models) were also tested for their applicability, with the Bingham and the modified Bingham model proving to be the best suitable ones.</jats:p>"}],"date_created":"2023-03-16T19:06:49Z","type":"journal_article","keyword":["Condensed Matter Physics","General Materials Science"],"department":[{"_id":"150"}],"status":"public","_id":"43034","publisher":"Walter de Gruyter GmbH","user_id":"3959","volume":33,"citation":{"ieee":"S. Josch, S. Jesinghausen, and H.-J. Schmid, “Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete,” <i>Applied Rheology</i>, vol. 33, no. 1, 2023, doi: <a href=\"https://doi.org/10.1515/arh-2022-0140\">10.1515/arh-2022-0140</a>.","apa":"Josch, S., Jesinghausen, S., &#38; Schmid, H.-J. (2023). Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete. <i>Applied Rheology</i>, <i>33</i>(1). <a href=\"https://doi.org/10.1515/arh-2022-0140\">https://doi.org/10.1515/arh-2022-0140</a>","chicago":"Josch, Sebastian, Steffen Jesinghausen, and Hans-Joachim Schmid. “Development of an Adaptive Coaxial Concrete Rheometer and Rheological Characterisation of Fresh Concrete.” <i>Applied Rheology</i> 33, no. 1 (2023). <a href=\"https://doi.org/10.1515/arh-2022-0140\">https://doi.org/10.1515/arh-2022-0140</a>.","short":"S. Josch, S. Jesinghausen, H.-J. Schmid, Applied Rheology 33 (2023).","mla":"Josch, Sebastian, et al. “Development of an Adaptive Coaxial Concrete Rheometer and Rheological Characterisation of Fresh Concrete.” <i>Applied Rheology</i>, vol. 33, no. 1, Walter de Gruyter GmbH, 2023, doi:<a href=\"https://doi.org/10.1515/arh-2022-0140\">10.1515/arh-2022-0140</a>.","bibtex":"@article{Josch_Jesinghausen_Schmid_2023, title={Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete}, volume={33}, DOI={<a href=\"https://doi.org/10.1515/arh-2022-0140\">10.1515/arh-2022-0140</a>}, number={1}, journal={Applied Rheology}, publisher={Walter de Gruyter GmbH}, author={Josch, Sebastian and Jesinghausen, Steffen and Schmid, Hans-Joachim}, year={2023} }","ama":"Josch S, Jesinghausen S, Schmid H-J. Development of an adaptive coaxial concrete rheometer and rheological characterisation of fresh concrete. <i>Applied Rheology</i>. 2023;33(1). doi:<a href=\"https://doi.org/10.1515/arh-2022-0140\">10.1515/arh-2022-0140</a>"},"quality_controlled":"1","oa":"1"},{"publication_status":"published","date_updated":"2023-05-02T11:40:24Z","intvolume":"        25","title":"Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming","year":"2023","publication_identifier":{"issn":["2474-395X"]},"author":[{"full_name":"Holzmüller, Maik","first_name":"Maik","last_name":"Holzmüller","id":"82645"},{"full_name":"Linnemann, Maik","first_name":"Maik","last_name":"Linnemann"},{"last_name":"Homberg","first_name":"Werner","full_name":"Homberg, Werner","id":"233"},{"first_name":"Verena","last_name":"Psyk","full_name":"Psyk, Verena"},{"last_name":"Kräusel","first_name":"Verena ","full_name":"Kräusel, Verena "},{"first_name":"Janika","last_name":"Kroos","full_name":"Kroos, Janika"}],"doi":"10.21741/9781644902417-2","language":[{"iso":"eng"}],"abstract":[{"lang":"eng","text":"<jats:p>Abstract. The combination of incremental sheet metal forming and high-speed forming offers new possibilities for flexible forming processes in the production of large sheet metal components of increased complexity with relatively low forming energies. In this paper, the general feasibility and process differences between the pulse-driven high-speed forming technologies of electrohydraulic and electromagnetic forming were investigated. An example component made of EN AW 6016 aluminum sheet metal was thus formed incrementally by both processes and the forming result evaluated by an optical 3D measurement system. For this purpose, a forming strategy for electromagnetic incremental forming (EMIF) was developed, tested and adapted to the electrohydraulic incremental forming process (EHIF). The discharge energy, the tool displacement and the pressure field of the forming zone were determined as relevant parameters for the definition of an adequate tool path strategy. It was found that the EHIF process is less affected by larger distances between the tool and the blank, while this is a critical variable for force application to the component during EMIF. On the other hand, the more uniform pressure distribution of the EMIF process is advantageous for forming large steady component areas. </jats:p>"}],"publication":"Materials Research Proceedings","keyword":["Incremental Sheet Forming","Aluminium","High-Speed Forming"],"type":"conference","department":[{"_id":"156"}],"date_created":"2023-03-17T10:23:18Z","status":"public","conference":{"end_date":"2023-04-05","start_date":"2023-04-02","name":"20th International Conference on Sheet Metal 2023","location":"Nürnberg"},"user_id":"82645","volume":25,"page":"11-18","publisher":"Materials Research Forum LLC","_id":"43044","quality_controlled":"1","citation":{"ama":"Holzmüller M, Linnemann M, Homberg W, Psyk V, Kräusel V, Kroos J. Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. In: <i>Materials Research Proceedings</i>. Vol 25. Materials Research Forum LLC; 2023:11-18. doi:<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>","bibtex":"@inproceedings{Holzmüller_Linnemann_Homberg_Psyk_Kräusel_Kroos_2023, title={Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming}, volume={25}, DOI={<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>}, booktitle={Materials Research Proceedings}, publisher={Materials Research Forum LLC}, author={Holzmüller, Maik and Linnemann, Maik and Homberg, Werner and Psyk, Verena and Kräusel, Verena  and Kroos, Janika}, year={2023}, pages={11–18} }","mla":"Holzmüller, Maik, et al. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” <i>Materials Research Proceedings</i>, vol. 25, Materials Research Forum LLC, 2023, pp. 11–18, doi:<a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>.","short":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, J. Kroos, in: Materials Research Proceedings, Materials Research Forum LLC, 2023, pp. 11–18.","chicago":"Holzmüller, Maik, Maik Linnemann, Werner Homberg, Verena Psyk, Verena  Kräusel, and Janika Kroos. “Proof of Concept for Incremental Sheet Metal Forming by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” In <i>Materials Research Proceedings</i>, 25:11–18. Materials Research Forum LLC, 2023. <a href=\"https://doi.org/10.21741/9781644902417-2\">https://doi.org/10.21741/9781644902417-2</a>.","apa":"Holzmüller, M., Linnemann, M., Homberg, W., Psyk, V., Kräusel, V., &#38; Kroos, J. (2023). Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming. <i>Materials Research Proceedings</i>, <i>25</i>, 11–18. <a href=\"https://doi.org/10.21741/9781644902417-2\">https://doi.org/10.21741/9781644902417-2</a>","ieee":"M. Holzmüller, M. Linnemann, W. Homberg, V. Psyk, V. Kräusel, and J. Kroos, “Proof of concept for incremental sheet metal forming by means of electromagnetic and electrohydraulic high-speed forming,” in <i>Materials Research Proceedings</i>, Nürnberg, 2023, vol. 25, pp. 11–18, doi: <a href=\"https://doi.org/10.21741/9781644902417-2\">10.21741/9781644902417-2</a>."}},{"citation":{"mla":"Codescu, M. A., et al. “Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole.” <i>J. Phys. Chem. Lett.</i>, vol. 14, 2023, pp. 4775–85, doi:<a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">10.1021/acs.jpclett.3c00595</a>.","ama":"Codescu M-A, Kunze T, Weiß M, et al. Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole. <i>J Phys Chem Lett</i>. 2023;14:4775-4785. doi:<a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">10.1021/acs.jpclett.3c00595</a>","bibtex":"@article{Codescu_Kunze_Weiß_Brehm_Kornilov_Sebastiani_Nibbering_2023, title={Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole}, volume={14}, DOI={<a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">10.1021/acs.jpclett.3c00595</a>}, journal={J. Phys. Chem. Lett.}, author={Codescu, M.-A. and Kunze, T. and Weiß, M. and Brehm, Martin and Kornilov, O. and Sebastiani, D. and Nibbering, E. T. J.}, year={2023}, pages={4775–4785} }","apa":"Codescu, M.-A., Kunze, T., Weiß, M., Brehm, M., Kornilov, O., Sebastiani, D., &#38; Nibbering, E. T. J. (2023). Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole. <i>J. Phys. Chem. Lett.</i>, <i>14</i>, 4775–4785. <a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">https://doi.org/10.1021/acs.jpclett.3c00595</a>","ieee":"M.-A. Codescu <i>et al.</i>, “Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole,” <i>J. Phys. Chem. Lett.</i>, vol. 14, pp. 4775–4785, 2023, doi: <a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">10.1021/acs.jpclett.3c00595</a>.","chicago":"Codescu, M.-A., T. Kunze, M. Weiß, Martin Brehm, O. Kornilov, D. Sebastiani, and E. T. J. Nibbering. “Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole.” <i>J. Phys. Chem. Lett.</i> 14 (2023): 4775–85. <a href=\"https://doi.org/10.1021/acs.jpclett.3c00595\">https://doi.org/10.1021/acs.jpclett.3c00595</a>.","short":"M.-A. Codescu, T. Kunze, M. Weiß, M. Brehm, O. Kornilov, D. Sebastiani, E.T.J. Nibbering, J. Phys. Chem. Lett. 14 (2023) 4775–4785."},"publication":"J. Phys. Chem. Lett.","extern":"1","date_created":"2023-05-16T20:22:06Z","department":[{"_id":"803"}],"type":"journal_article","author":[{"first_name":"M.-A.","last_name":"Codescu","full_name":"Codescu, M.-A."},{"first_name":"T.","last_name":"Kunze","full_name":"Kunze, T."},{"last_name":"Weiß","first_name":"M.","full_name":"Weiß, M."},{"full_name":"Brehm, Martin","first_name":"Martin","last_name":"Brehm","id":"100167"},{"first_name":"O.","last_name":"Kornilov","full_name":"Kornilov, O."},{"full_name":"Sebastiani, D.","first_name":"D.","last_name":"Sebastiani"},{"full_name":"Nibbering, E. T. J.","first_name":"E. T. J.","last_name":"Nibbering"}],"status":"public","year":"2023","title":"Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole","intvolume":"        14","date_updated":"2023-05-16T20:49:18Z","language":[{"iso":"eng"}],"_id":"45013","page":"4775-4785","volume":14,"user_id":"100167","doi":"10.1021/acs.jpclett.3c00595"}]