---
_id: '47421'
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.
author:
- first_name: N'Dah Jean
full_name: Kouagou, N'Dah Jean
id: '87189'
last_name: Kouagou
- first_name: Stefan
full_name: Heindorf, Stefan
id: '11871'
last_name: Heindorf
orcid: 0000-0002-4525-6865
- first_name: Caglar
full_name: Demir, Caglar
id: '43817'
last_name: Demir
- first_name: Axel-Cyrille
full_name: Ngonga Ngomo, Axel-Cyrille
id: '65716'
last_name: Ngonga Ngomo
citation:
ama: 'Kouagou NJ, Heindorf S, Demir C, Ngonga Ngomo A-C. Neural Class Expression
Synthesis in ALCHIQ(D). In: Machine Learning and Knowledge Discovery in Databases:
Research Track. Springer Nature Switzerland; 2023. doi:10.1007/978-3-031-43421-1_12'
apa: 'Kouagou, N. J., Heindorf, S., Demir, C., & Ngonga Ngomo, A.-C. (2023).
Neural Class Expression Synthesis in ALCHIQ(D). In Machine Learning and Knowledge
Discovery in Databases: Research Track. European Conference on Machine Learning
and Principles and Practice of Knowledge Discovery in Databases, Turin. Springer
Nature Switzerland. https://doi.org/10.1007/978-3-031-43421-1_12'
bibtex: '@inbook{Kouagou_Heindorf_Demir_Ngonga Ngomo_2023, place={Cham}, title={Neural
Class Expression Synthesis in ALCHIQ(D)}, DOI={10.1007/978-3-031-43421-1_12},
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} }'
chicago: 'Kouagou, N’Dah Jean, Stefan Heindorf, Caglar Demir, and Axel-Cyrille Ngonga
Ngomo. “Neural Class Expression Synthesis in ALCHIQ(D).” In Machine Learning
and Knowledge Discovery in Databases: Research Track. Cham: Springer Nature
Switzerland, 2023. https://doi.org/10.1007/978-3-031-43421-1_12.'
ieee: 'N. J. Kouagou, S. Heindorf, C. Demir, and A.-C. Ngonga Ngomo, “Neural Class
Expression Synthesis in ALCHIQ(D),” in Machine Learning and Knowledge Discovery
in Databases: Research Track, Cham: Springer Nature Switzerland, 2023.'
mla: 'Kouagou, N’Dah Jean, et al. “Neural Class Expression Synthesis in ALCHIQ(D).”
Machine Learning and Knowledge Discovery in Databases: Research Track,
Springer Nature Switzerland, 2023, doi:10.1007/978-3-031-43421-1_12.'
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.'
conference:
end_date: 2023-09-22
location: Turin
name: European Conference on Machine Learning and Principles and Practice of Knowledge
Discovery in Databases
start_date: 2023-09-18
date_created: 2023-09-25T13:42:01Z
date_updated: 2024-05-22T10:48:24Z
ddc:
- '000'
department:
- _id: '760'
- _id: '574'
doi: 10.1007/978-3-031-43421-1_12
file:
- access_level: open_access
content_type: application/pdf
creator: heindorf
date_created: 2024-05-22T10:45:08Z
date_updated: 2024-05-22T10:46:58Z
file_id: '54417'
file_name: NCES2_public.pdf
file_size: 432708
relation: main_file
file_date_updated: 2024-05-22T10:46:58Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://papers.dice-research.org/2023/ECML_NCES2/NCES2_public.pdf
oa: '1'
place: Cham
publication: 'Machine Learning and Knowledge Discovery in Databases: Research Track'
publication_identifier:
isbn:
- '9783031434204'
- '9783031434211'
issn:
- 0302-9743
- 1611-3349
publication_status: published
publisher: Springer Nature Switzerland
status: public
title: Neural Class Expression Synthesis in ALCHIQ(D)
type: book_chapter
user_id: '11871'
year: '2023'
...
---
_id: '51338'
author:
- first_name: Jan
full_name: Schütte, Jan
id: '22109'
last_name: Schütte
orcid: 0000-0001-9025-9742
- first_name: Walter
full_name: Sextro, Walter
id: '21220'
last_name: Sextro
citation:
ama: 'Schütte J, Sextro W. Einfluss der Radhubkinematik auf den Reifenverschleiß.
In: 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn. Vol 2425. VDI-Berichte.
VDI Verlag GmbH; 2023:165-180.'
apa: Schütte, J., & Sextro, W. (2023). Einfluss der Radhubkinematik auf den
Reifenverschleiß. 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn, 2425,
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} }'
chicago: Schütte, Jan, and Walter Sextro. “Einfluss der Radhubkinematik auf den
Reifenverschleiß.” In 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn,
2425:165–80. VDI-Berichte. VDI Verlag GmbH, 2023.
ieee: J. Schütte and W. Sextro, “Einfluss der Radhubkinematik auf den Reifenverschleiß,”
in 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn, Karlsruhe, 2023, vol.
2425, pp. 165–180.
mla: Schütte, Jan, and Walter Sextro. “Einfluss der Radhubkinematik auf den Reifenverschleiß.”
20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn, vol. 2425, VDI Verlag
GmbH, 2023, pp. 165–80.
short: 'J. Schütte, W. Sextro, in: 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn,
VDI Verlag GmbH, 2023, pp. 165–180.'
conference:
end_date: 2023-11-09
location: Karlsruhe
name: 20. VDI Fachtagung Reifen - Fahrwerk - Fahrbahn
start_date: 2023-11-08
date_created: 2024-02-13T11:29:58Z
date_updated: 2024-05-27T07:48:26Z
department:
- _id: '151'
intvolume: ' 2425'
language:
- iso: ger
page: 165-180
publication: 20. VDI-Fachtagung Reifen - Fahrwerk - Fahrbahn
publication_identifier:
unknown:
- 978-3-18-092425-0
publication_status: published
publisher: VDI Verlag GmbH
series_title: VDI-Berichte
status: public
title: Einfluss der Radhubkinematik auf den Reifenverschleiß
type: conference
user_id: '22109'
volume: 2425
year: '2023'
...
---
_id: '54466'
author:
- first_name: Richard
full_name: Janus, Richard
id: '31047'
last_name: Janus
orcid: https://orcid.org/0009-0006-0365-4546
- first_name: Naciye
full_name: Kamcili-Yildiz, Naciye
id: '36874'
last_name: Kamcili-Yildiz
- first_name: Marion
full_name: Rose, Marion
last_name: Rose
citation:
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. Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert. Vol 26. Studien zur religiösen Bildung. Evangelischer
Verlagsanstalt; 2023:13-28.'
apa: Janus, R., Kamcili-Yildiz, N., & Rose, M. (2023). Krise, Katastrophe, Krieg.
Eine thematische Hinführung zur Tagung . In R. Janus, N. Kamcili-Yildiz, M. Rose,
& H. Schroeter-Witte (Eds.), Katastrophen. Religiöse Bildung angesichts
Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert (Vol. 26, pp. 13–28).
Evangelischer Verlagsanstalt.
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}
}'
chicago: 'Janus, Richard, Naciye Kamcili-Yildiz, and Marion Rose. “Krise, Katastrophe,
Krieg. Eine thematische Hinführung zur Tagung .” In Katastrophen. Religiöse
Bildung angesichts Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert,
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 Katastrophen. Religiöse Bildung angesichts
Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, vol. 26, R. Janus,
N. Kamcili-Yildiz, M. Rose, and H. Schroeter-Witte, Eds. Leipzig: Evangelischer
Verlagsanstalt, 2023, pp. 13–28.'
mla: Janus, Richard, et al. “Krise, Katastrophe, Krieg. Eine thematische Hinführung
zur Tagung .” Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert, 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.'
date_created: 2024-05-27T15:00:52Z
date_updated: 2024-05-27T15:00:56Z
department:
- _id: '36'
- _id: '20'
- _id: '500'
editor:
- first_name: Richard
full_name: Janus, Richard
last_name: Janus
- first_name: Naciye
full_name: Kamcili-Yildiz, Naciye
last_name: Kamcili-Yildiz
- first_name: Marion
full_name: Rose, Marion
last_name: Rose
- first_name: Harald
full_name: Schroeter-Witte, Harald
last_name: Schroeter-Witte
intvolume: ' 26'
language:
- iso: ger
page: 13-28
place: Leipzig
publication: Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert
publication_status: epub_ahead
publisher: Evangelischer Verlagsanstalt
series_title: Studien zur religiösen Bildung
status: public
title: 'Krise, Katastrophe, Krieg. Eine thematische Hinführung zur Tagung '
type: book_chapter
user_id: '31047'
volume: 26
year: '2023'
...
---
_id: '54465'
author:
- first_name: Richard
full_name: Janus, Richard
id: '31047'
last_name: Janus
orcid: https://orcid.org/0009-0006-0365-4546
citation:
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. Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert. Vol 26. Studien zur religiösen Bildung. ; 2023:201-212.'
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, &
H. Schroeter-Witte (Eds.), Katastrophen. Religiöse Bildung angesichts Kriegs-
und Krisenerfahrungen im 19. und 20. Jahrhundert (Vol. 26, pp. 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} }'
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 Katastrophen. Religiöse Bildung angesichts
Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, edited by Richard
Janus, Naciye Kamcili-Yildiz, Marion Rose, and Harald Schroeter-Witte, 26:201–12.
Studien zur religiösen Bildung, 2023.
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 Katastrophen. Religiöse Bildung angesichts
Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, vol. 26, R. Janus,
N. Kamcili-Yildiz, M. Rose, and H. Schroeter-Witte, Eds. 2023, pp. 201–212.
mla: Janus, Richard. “Der Religionsunterricht vor der Judenfrage. Antisemitismus
als Kriterium für die Beschreibung der Religionspädagogik im Nationalsozialismus
bei Hermann Tögel und Kurt Freitag.” Katastrophen. Religiöse Bildung angesichts
Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert, edited by Richard
Janus et al., vol. 26, 2023, pp. 201–12.
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.'
date_created: 2024-05-27T14:50:46Z
date_updated: 2024-05-27T14:50:56Z
department:
- _id: '36'
- _id: '20'
- _id: '500'
editor:
- first_name: Richard
full_name: Janus, Richard
last_name: Janus
- first_name: Naciye
full_name: Kamcili-Yildiz, Naciye
last_name: Kamcili-Yildiz
- first_name: Marion
full_name: Rose, Marion
last_name: Rose
- first_name: Harald
full_name: Schroeter-Witte, Harald
last_name: Schroeter-Witte
intvolume: ' 26'
language:
- iso: ger
page: 201-212
publication: Katastrophen. Religiöse Bildung angesichts Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert
publication_status: published
series_title: Studien zur religiösen Bildung
status: public
title: Der Religionsunterricht vor der Judenfrage. Antisemitismus als Kriterium für
die Beschreibung der Religionspädagogik im Nationalsozialismus bei Hermann Tögel
und Kurt Freitag
type: book_chapter
user_id: '31047'
volume: 26
year: '2023'
...
---
_id: '54467'
author:
- first_name: Richard
full_name: Janus, Richard
id: '31047'
last_name: Janus
orcid: https://orcid.org/0009-0006-0365-4546
citation:
ama: 'Janus R. Karfreitag. Matthäus 27,33-54. In: Schult M, ed. Er ist unser
Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1.
Evangelischer Verlagsanstalt; 2023:159-164.'
apa: Janus, R. (2023). Karfreitag. Matthäus 27,33-54. In M. Schult (Ed.), Er
ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe
VI/1 (pp. 159–164). Evangelischer Verlagsanstalt.
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} }'
chicago: 'Janus, Richard. “Karfreitag. Matthäus 27,33-54.” In Er ist unser Friede.
Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1, edited
by Maike Schult, 159–64. Leipzig: Evangelischer Verlagsanstalt, 2023.'
ieee: 'R. Janus, “Karfreitag. Matthäus 27,33-54.,” in Er ist unser Friede. Lesepredigten
1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1, M. Schult, Ed. Leipzig:
Evangelischer Verlagsanstalt, 2023, pp. 159–164.'
mla: Janus, Richard. “Karfreitag. Matthäus 27,33-54.” Er ist unser Friede. Lesepredigten
1. Advent 2023 bis Pfingstmontag 2024. Textreihe VI/1, edited by Maike Schult,
Evangelischer Verlagsanstalt, 2023, pp. 159–64.
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.'
date_created: 2024-05-27T15:03:21Z
date_updated: 2024-05-27T15:03:24Z
department:
- _id: '36'
- _id: '20'
- _id: '500'
editor:
- first_name: Maike
full_name: Schult, Maike
last_name: Schult
language:
- iso: ger
page: 159-164
place: Leipzig
publication: Er ist unser Friede. Lesepredigten 1. Advent 2023 bis Pfingstmontag 2024.
Textreihe VI/1
publication_status: published
publisher: Evangelischer Verlagsanstalt
status: public
title: Karfreitag. Matthäus 27,33-54.
type: book_chapter
user_id: '31047'
year: '2023'
...
---
_id: '52855'
citation:
ama: Janus R, Schroeter-Wittke H, Kamcili-Yildiz N, Rose M, eds. Katastrophen.
Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20.
Jahrhundert. EVA; 2023.
apa: Janus, R., Schroeter-Wittke, H., Kamcili-Yildiz, N., & Rose, M. (Eds.).
(2023). Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert. EVA.
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} }'
chicago: 'Janus, Richard, Harald Schroeter-Wittke, Naciye Kamcili-Yildiz, and Marion
Rose, eds. Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert. Leipzig: EVA, 2023.'
ieee: 'R. Janus, H. Schroeter-Wittke, N. Kamcili-Yildiz, and M. Rose, Eds., Katastrophen.
Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen im 19. und 20.
Jahrhundert. Leipzig: EVA, 2023.'
mla: Janus, Richard, et al., editors. Katastrophen. Religiöse Bildung angesichts
von Kriegs- und Krisenerfahrungen im 19. und 20. Jahrhundert. 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.
date_created: 2024-03-25T12:40:20Z
date_updated: 2024-05-27T14:52:00Z
department:
- _id: '497'
editor:
- first_name: Richard
full_name: Janus, Richard
id: '31047'
last_name: Janus
orcid: https://orcid.org/0009-0006-0365-4546
- first_name: Harald
full_name: Schroeter-Wittke, Harald
id: '480'
last_name: Schroeter-Wittke
- first_name: Naciye
full_name: Kamcili-Yildiz, Naciye
id: '36874'
last_name: Kamcili-Yildiz
- first_name: Marion
full_name: Rose, Marion
last_name: Rose
language:
- iso: ger
page: '368'
place: Leipzig
publication_identifier:
isbn:
- 978-3-374-07442-6
publication_status: published
publisher: EVA
status: public
title: Katastrophen. Religiöse Bildung angesichts von Kriegs- und Krisenerfahrungen
im 19. und 20. Jahrhundert
type: book_editor
user_id: '31047'
year: '2023'
...
---
_id: '53232'
abstract:
- lang: eng
text: 'PurposeNew
business practices and the globalization of markets force firms to take innovation
as the fundamental pillar of their competitive strategy. Research and Development
(R&D) plays a vital role in innovation. As technology advances and product
life cycles become shorter, firms rely on R&D as a strategy to invigorate
innovation. R&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&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&D professionals to assist managers in making informed and effective
decisions. It also provides a framework for aligning the portfolio of R&D
projects with the organizational vision and mission.Design/methodology/approachThis
article proposes a new strategic approach for R&D project portfolio selection
using efficiency-uncertainty maps.FindingsThe
proposed strategy plane helps decision-makers align R&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.Originality/valueThe 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&D projects.'
author:
- first_name: Mehdi
full_name: Namazi, Mehdi
last_name: Namazi
- first_name: Madjid
full_name: Tavana, Madjid
id: '31858'
last_name: Tavana
- first_name: Emran
full_name: Mohammadi, Emran
last_name: Mohammadi
- first_name: Ali
full_name: Bonyadi Naeini, Ali
last_name: Bonyadi Naeini
citation:
ama: 'Namazi M, Tavana M, Mohammadi E, Bonyadi Naeini A. A new strategic approach
for R&D project portfolio selection using efficiency-uncertainty maps. Benchmarking:
An International Journal. 2023;30(10):4193-4220. doi:10.1108/bij-02-2022-0129'
apa: 'Namazi, M., Tavana, M., Mohammadi, E., & Bonyadi Naeini, A. (2023). A
new strategic approach for R&D project portfolio selection using efficiency-uncertainty
maps. Benchmarking: An International Journal, 30(10), 4193–4220.
https://doi.org/10.1108/bij-02-2022-0129'
bibtex: '@article{Namazi_Tavana_Mohammadi_Bonyadi Naeini_2023, title={A new strategic
approach for R&D project portfolio selection using efficiency-uncertainty
maps}, volume={30}, DOI={10.1108/bij-02-2022-0129},
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} }'
chicago: 'Namazi, Mehdi, Madjid Tavana, Emran Mohammadi, and Ali Bonyadi Naeini.
“A New Strategic Approach for R&D Project Portfolio Selection Using Efficiency-Uncertainty
Maps.” Benchmarking: An International Journal 30, no. 10 (2023): 4193–4220.
https://doi.org/10.1108/bij-02-2022-0129.'
ieee: 'M. Namazi, M. Tavana, E. Mohammadi, and A. Bonyadi Naeini, “A new strategic
approach for R&D project portfolio selection using efficiency-uncertainty
maps,” Benchmarking: An International Journal, vol. 30, no. 10, pp. 4193–4220,
2023, doi: 10.1108/bij-02-2022-0129.'
mla: 'Namazi, Mehdi, et al. “A New Strategic Approach for R&D Project Portfolio
Selection Using Efficiency-Uncertainty Maps.” Benchmarking: An International
Journal, vol. 30, no. 10, Emerald, 2023, pp. 4193–220, doi:10.1108/bij-02-2022-0129.'
short: 'M. Namazi, M. Tavana, E. Mohammadi, A. Bonyadi Naeini, Benchmarking: An
International Journal 30 (2023) 4193–4220.'
date_created: 2024-04-04T14:03:24Z
date_updated: 2024-05-28T09:31:36Z
department:
- _id: '277'
doi: 10.1108/bij-02-2022-0129
intvolume: ' 30'
issue: '10'
keyword:
- Business and International Management
- Strategy and Management
language:
- iso: eng
page: 4193-4220
publication: 'Benchmarking: An International Journal'
publication_identifier:
issn:
- 1463-5771
publication_status: published
publisher: Emerald
status: public
title: A new strategic approach for R&D project portfolio selection using efficiency-uncertainty
maps
type: journal_article
user_id: '51811'
volume: 30
year: '2023'
...
---
_id: '50603'
abstract:
- lang: eng
text: 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 & 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.
author:
- first_name: Jens
full_name: Hälterlein, Jens
id: '94837'
last_name: Hälterlein
citation:
ama: Hälterlein J. Agentenbasierte Modellierung und Simulation im Pandemiemanagement.
TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis.
2023;32(1):30-35. doi:10.14512/tatup.32.1.30
apa: Hälterlein, J. (2023). Agentenbasierte Modellierung und Simulation im Pandemiemanagement.
TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis,
32(1), 30–35. https://doi.org/10.14512/tatup.32.1.30
bibtex: '@article{Hälterlein_2023, title={Agentenbasierte Modellierung und Simulation
im Pandemiemanagement}, volume={32}, DOI={10.14512/tatup.32.1.30},
number={1}, journal={TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie
und Praxis}, publisher={Oekom Publishers GmbH}, author={Hälterlein, Jens}, year={2023},
pages={30–35} }'
chicago: 'Hälterlein, Jens. “Agentenbasierte Modellierung Und Simulation Im Pandemiemanagement.”
TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis
32, no. 1 (2023): 30–35. https://doi.org/10.14512/tatup.32.1.30.'
ieee: 'J. Hälterlein, “Agentenbasierte Modellierung und Simulation im Pandemiemanagement,”
TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis,
vol. 32, no. 1, pp. 30–35, 2023, doi: 10.14512/tatup.32.1.30.'
mla: Hälterlein, Jens. “Agentenbasierte Modellierung Und Simulation Im Pandemiemanagement.”
TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie Und Praxis,
vol. 32, no. 1, Oekom Publishers GmbH, 2023, pp. 30–35, doi:10.14512/tatup.32.1.30.
short: J. Hälterlein, TATuP - Zeitschrift Für Technikfolgenabschätzung in Theorie
Und Praxis 32 (2023) 30–35.
date_created: 2024-01-18T14:05:23Z
date_updated: 2024-07-03T08:08:24Z
department:
- _id: '36'
- _id: '11'
doi: 10.14512/tatup.32.1.30
intvolume: ' 32'
issue: '1'
keyword:
- General Medicine
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 30-35
publication: TATuP - Zeitschrift für Technikfolgenabschätzung in Theorie und Praxis
publication_identifier:
issn:
- 2567-8833
- 2568-020X
publication_status: published
publisher: Oekom Publishers GmbH
quality_controlled: '1'
related_material:
link:
- relation: confirmation
url: https://www.tatup.de/index.php/tatup/article/view/7038
status: public
title: Agentenbasierte Modellierung und Simulation im Pandemiemanagement
type: journal_article
user_id: '94837'
volume: 32
year: '2023'
...
---
_id: '54398'
abstract:
- lang: eng
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.
author:
- first_name: Alexander
full_name: Trautmann, Alexander
last_name: Trautmann
- first_name: Markus
full_name: Stein, Markus
last_name: Stein
- first_name: Felix
full_name: Schäfer, Felix
last_name: Schäfer
- first_name: Daniel
full_name: Anders, Daniel
last_name: Anders
- first_name: Cong
full_name: Ngo, Cong
last_name: Ngo
- first_name: Johannes Tilmann
full_name: Steiner, Johannes Tilmann
last_name: Steiner
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: Sangam
full_name: Chatterjee, Sangam
last_name: Chatterjee
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
citation:
ama: Trautmann A, Stein M, Schäfer F, et al. Analysis of the Nonlinear Optical
Response of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.
LibreCat University; 2023. doi:10.5281/ZENODO.7757178
apa: Trautmann, A., Stein, M., Schäfer, F., Anders, D., Ngo, C., Steiner, J. T.,
Reichelt, M., Chatterjee, S., & Meier, T. (2023). Analysis of the nonlinear
optical response of excitons in type-I and type-II quantum wells including many-body
correlations. LibreCat University. https://doi.org/10.5281/ZENODO.7757178
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={10.5281/ZENODO.7757178},
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}
}'
chicago: Trautmann, Alexander, Markus Stein, Felix Schäfer, Daniel Anders, Cong
Ngo, Johannes Tilmann Steiner, Matthias Reichelt, Sangam Chatterjee, and Torsten
Meier. Analysis of the Nonlinear Optical Response of Excitons in Type-I and
Type-II Quantum Wells Including Many-Body Correlations. LibreCat University,
2023. https://doi.org/10.5281/ZENODO.7757178.
ieee: A. Trautmann et al., 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. Analysis of the Nonlinear Optical Response
of Excitons in Type-I and Type-II Quantum Wells Including Many-Body Correlations.
LibreCat University, 2023, doi:10.5281/ZENODO.7757178.
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.
date_created: 2024-05-21T14:19:32Z
date_updated: 2024-07-15T09:37:35Z
department:
- _id: '15'
- _id: '170'
- _id: '293'
- _id: '35'
- _id: '230'
doi: 10.5281/ZENODO.7757178
publisher: LibreCat University
status: public
title: Analysis of the nonlinear optical response of excitons in type-I and type-II
quantum wells including many-body correlations
type: research_data
user_id: '16199'
year: '2023'
...
---
_id: '55836'
abstract:
- lang: eng
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.'
citation:
ama: 'Roland PD, Kepper J, eds. MEI: The Music Encoding Initiative Guidelines
(PDF). Zenodo; 2023. doi:10.5281/ZENODO.10040258'
apa: 'Roland, P. D., & Kepper, J. (Eds.). (2023). MEI: The Music Encoding
Initiative Guidelines (PDF). Zenodo. https://doi.org/10.5281/ZENODO.10040258'
bibtex: '@book{Roland_Kepper_2023, title={MEI: The Music Encoding Initiative Guidelines
(PDF)}, DOI={10.5281/ZENODO.10040258},
publisher={Zenodo}, year={2023} }'
chicago: 'Roland, Perry D., and Johannes Kepper, eds. MEI: The Music Encoding
Initiative Guidelines (PDF). Zenodo, 2023. https://doi.org/10.5281/ZENODO.10040258.'
ieee: 'P. D. Roland and J. Kepper, Eds., MEI: The Music Encoding Initiative Guidelines
(PDF). Zenodo, 2023.'
mla: 'Roland, Perry D., and Johannes Kepper, editors. MEI: The Music Encoding
Initiative Guidelines (PDF). Zenodo, 2023, doi:10.5281/ZENODO.10040258.'
short: 'P.D. Roland, J. Kepper, eds., MEI: The Music Encoding Initiative Guidelines
(PDF), Zenodo, 2023.'
date_created: 2024-08-28T11:43:51Z
date_updated: 2024-08-28T14:08:24Z
department:
- _id: '874'
doi: 10.5281/ZENODO.10040258
editor:
- first_name: Perry D.
full_name: Roland, Perry D.
last_name: Roland
- first_name: Johannes
full_name: Kepper, Johannes
id: '1684'
last_name: Kepper
orcid: 0000-0003-4891-260X
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://music-encoding.org/guidelines/v5/MEI_Guidelines_v5.0.pdf
oa: '1'
publication_status: published
publisher: Zenodo
status: public
title: 'MEI: The Music Encoding Initiative Guidelines (PDF)'
type: book_editor
user_id: '1684'
year: '2023'
...
---
_id: '55960'
author:
- first_name: Moritz Sebastian
full_name: Rossel, Moritz Sebastian
id: '44503'
last_name: Rossel
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- first_name: Mortaza
full_name: Otroshi, Mortaza
last_name: Otroshi
citation:
ama: Rossel MS, Meschut G, Bielak CR, Otroshi M. Methodenentwicklung zur Verbesserung
der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer
Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung.
Vol 610. Europäische Forschungsgesellschaft für Blechverarbeitung e.V.; 2023.
apa: Rossel, M. S., Meschut, G., Bielak, C. R., & Otroshi, M. (2023). Methodenentwicklung
zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation
mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung
(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}
}'
chicago: Rossel, Moritz Sebastian, Gerson Meschut, Christian Roman Bielak, and Mortaza
Otroshi. Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in
der numerischen 3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung
der fügeinduzierten Vorbeanspruchung. Vol. 610. EFB-Forschungsbericht. Europäische
Forschungsgesellschaft für Blechverarbeitung e.V., 2023.
ieee: M. S. Rossel, G. Meschut, C. R. Bielak, and M. Otroshi, Methodenentwicklung
zur Verbesserung der Schädigungsmodellierung in der numerischen 3D-Belastungssimulation
mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung,
vol. 610. Europäische Forschungsgesellschaft für Blechverarbeitung e.V., 2023.
mla: Rossel, Moritz Sebastian, et al. Methodenentwicklung zur Verbesserung der
Schädigungsmodellierung in der numerischen 3D-Belastungssimulation mechanischer
Fügeverfahren unter Berücksichtigung der fügeinduzierten Vorbeanspruchung. Europäische
Forschungsgesellschaft für Blechverarbeitung e.V., 2023.
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.
date_created: 2024-09-02T10:29:03Z
date_updated: 2024-09-02T10:29:38Z
department:
- _id: '157'
intvolume: ' 610'
language:
- iso: ger
page: '124'
publication_identifier:
isbn:
- '9783867766791'
publication_status: published
publisher: ' Europäische Forschungsgesellschaft für Blechverarbeitung e.V.'
series_title: EFB-Forschungsbericht
status: public
title: Methodenentwicklung zur Verbesserung der Schädigungsmodellierung in der numerischen
3D-Belastungssimulation mechanischer Fügeverfahren unter Berücksichtigung der fügeinduzierten
Vorbeanspruchung
type: book
user_id: '44503'
volume: 610
year: '2023'
...
---
_id: '41119'
author:
- first_name: Sabine
full_name: Schmitz, Sabine
id: '21675'
last_name: Schmitz
citation:
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. Letteratura Come Ponte? Littérature Comme Pont? Literatur
Als Brücke? Zur Frage von Migration Und Literatur. Viella Libreria Editrice;
2023:28.'
apa: Schmitz, S. (2023). Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen
Arbeitsmigration des 20. Jahrhunderts im aktuellen belgischen Comic. In B. Kuhn
& M. Liebermann (Eds.), Letteratura come ponte? Littérature comme pont?
Literatur als Brücke? Zur Frage von Migration und Literatur (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} }'
chicago: 'Schmitz, Sabine. “Brückenbau Oder Steg Der Erinnerung? Narrationen Zur
Italienischen Arbeitsmigration Des 20. Jahrhunderts Im Aktuellen Belgischen Comic.”
In Letteratura Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur
Frage von Migration Und Literatur, 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 Letteratura
come ponte? Littérature comme pont? Literatur als Brücke? Zur Frage von Migration
und Literatur, B. Kuhn and M. Liebermann, Eds. Rom: Viella Libreria Editrice,
2023, p. 28.'
mla: Schmitz, Sabine. “Brückenbau Oder Steg Der Erinnerung? Narrationen Zur Italienischen
Arbeitsmigration Des 20. Jahrhunderts Im Aktuellen Belgischen Comic.” Letteratura
Come Ponte? Littérature Comme Pont? Literatur Als Brücke? Zur Frage von Migration
Und Literatur, edited by Barbara Kuhn and Marita Liebermann, Viella Libreria
Editrice, 2023, p. 28.
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.'
date_created: 2023-01-31T08:15:21Z
date_updated: 2024-09-03T10:29:15Z
editor:
- first_name: Barbara
full_name: Kuhn, Barbara
last_name: Kuhn
- first_name: Marita
full_name: Liebermann, Marita
last_name: Liebermann
language:
- iso: eng
page: '28'
place: Rom
publication: Letteratura come ponte? Littérature comme pont? Literatur als Brücke?
Zur Frage von Migration und Literatur
publisher: Viella Libreria Editrice
status: public
title: Brückenbau oder Steg der Erinnerung? Narrationen zur italienischen Arbeitsmigration
des 20. Jahrhunderts im aktuellen belgischen Comic
type: book_chapter
user_id: '21675'
year: '2023'
...
---
_id: '36834'
abstract:
- lang: eng
text: "AbstractIncreasing 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"
author:
- first_name: Kerstin K.
full_name: Zander, Kerstin K.
last_name: Zander
- first_name: Jonas
full_name: Rieskamp, Jonas
id: '77643'
last_name: Rieskamp
- first_name: Milad
full_name: Mirbabaie, Milad
id: '88691'
last_name: Mirbabaie
- first_name: Mamoun
full_name: Alazab, Mamoun
last_name: Alazab
- first_name: Duy
full_name: Nguyen, Duy
last_name: Nguyen
citation:
ama: 'Zander KK, Rieskamp J, Mirbabaie M, Alazab M, Nguyen D. Responses to heat
waves: what can Twitter data tell us? Natural Hazards. Published online
2023. doi:10.1007/s11069-023-05824-2'
apa: 'Zander, K. K., Rieskamp, J., Mirbabaie, M., Alazab, M., & Nguyen, D. (2023).
Responses to heat waves: what can Twitter data tell us? Natural Hazards.
https://doi.org/10.1007/s11069-023-05824-2'
bibtex: '@article{Zander_Rieskamp_Mirbabaie_Alazab_Nguyen_2023, title={Responses
to heat waves: what can Twitter data tell us?}, DOI={10.1007/s11069-023-05824-2},
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} }'
chicago: 'Zander, Kerstin K., Jonas Rieskamp, Milad Mirbabaie, Mamoun Alazab, and
Duy Nguyen. “Responses to Heat Waves: What Can Twitter Data Tell Us?” Natural
Hazards, 2023. https://doi.org/10.1007/s11069-023-05824-2.'
ieee: 'K. K. Zander, J. Rieskamp, M. Mirbabaie, M. Alazab, and D. Nguyen, “Responses
to heat waves: what can Twitter data tell us?,” Natural Hazards, 2023,
doi: 10.1007/s11069-023-05824-2.'
mla: 'Zander, Kerstin K., et al. “Responses to Heat Waves: What Can Twitter Data
Tell Us?” Natural Hazards, Springer Science and Business Media LLC, 2023,
doi:10.1007/s11069-023-05824-2.'
short: K.K. Zander, J. Rieskamp, M. Mirbabaie, M. Alazab, D. Nguyen, Natural Hazards
(2023).
date_created: 2023-01-14T10:51:36Z
date_updated: 2023-01-14T10:52:35Z
doi: 10.1007/s11069-023-05824-2
keyword:
- Earth and Planetary Sciences (miscellaneous)
- Atmospheric Science
- Water Science and Technology
language:
- iso: eng
publication: Natural Hazards
publication_identifier:
issn:
- 0921-030X
- 1573-0840
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: 'Responses to heat waves: what can Twitter data tell us?'
type: journal_article
user_id: '77643'
year: '2023'
...
---
_id: '42049'
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."
author:
- first_name: Guo-Dong
full_name: Cui, Guo-Dong
last_name: Cui
- first_name: Lucas
full_name: Schweickert, Lucas
last_name: Schweickert
- first_name: Klaus D.
full_name: Jöns, Klaus D.
id: '85353'
last_name: Jöns
- first_name: Mehdi
full_name: Namazi, Mehdi
last_name: Namazi
- first_name: Thomas
full_name: Lettner, Thomas
last_name: Lettner
- first_name: Katharina D.
full_name: Zeuner, Katharina D.
last_name: Zeuner
- first_name: Lara Scavuzzo
full_name: Montaña, Lara Scavuzzo
last_name: Montaña
- first_name: Saimon Filipe Covre da
full_name: Silva, Saimon Filipe Covre da
last_name: Silva
- first_name: Marcus
full_name: Reindl, Marcus
last_name: Reindl
- first_name: Huiying
full_name: Huang, Huiying
last_name: Huang
- first_name: Rinaldo
full_name: Trotta, Rinaldo
last_name: Trotta
- first_name: Armando
full_name: Rastelli, Armando
last_name: Rastelli
- first_name: Val
full_name: Zwiller, Val
last_name: Zwiller
- first_name: Eden
full_name: Figueroa, Eden
last_name: Figueroa
citation:
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. arXiv:230110326.
Published online 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., & Figueroa, E. (2023). Coherent Quantum Interconnection
between On-Demand Quantum Dot Single Photons and a Resonant Atomic Quantum Memory.
In arXiv:2301.10326.
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}
}'
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.”
ArXiv:2301.10326, 2023.
ieee: G.-D. Cui et al., “Coherent Quantum Interconnection between On-Demand
Quantum Dot Single Photons and a Resonant Atomic Quantum Memory,” arXiv:2301.10326.
2023.
mla: Cui, Guo-Dong, et al. “Coherent Quantum Interconnection between On-Demand Quantum
Dot Single Photons and a Resonant Atomic Quantum Memory.” ArXiv:2301.10326,
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).
date_created: 2023-02-13T11:25:45Z
date_updated: 2023-02-13T11:28:56Z
department:
- _id: '642'
external_id:
arxiv:
- '2301.10326'
language:
- iso: eng
publication: arXiv:2301.10326
status: public
title: Coherent Quantum Interconnection between On-Demand Quantum Dot Single Photons
and a Resonant Atomic Quantum Memory
type: preprint
user_id: '14931'
year: '2023'
...
---
_id: '42638'
abstract:
- lang: eng
text: 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)
author:
- first_name: Benjamin
full_name: Balsmeier, Benjamin
last_name: Balsmeier
- first_name: Lee
full_name: Fleming, Lee
last_name: Fleming
- first_name: Sonja
full_name: Lück, Sonja
id: '950'
last_name: Lück
orcid: 0000-0003-0380-1965
citation:
ama: 'Balsmeier B, Fleming L, Lück S. Isolating Personal Knowledge Spillovers: Coinventor
Deaths and Spatial Citation Differentials. American Economic Review: Insights.
2023;5(1):21-33. doi:10.1257/aeri.20210275'
apa: 'Balsmeier, B., Fleming, L., & Lück, S. (2023). Isolating Personal Knowledge
Spillovers: Coinventor Deaths and Spatial Citation Differentials. American
Economic Review: Insights, 5(1), 21–33. https://doi.org/10.1257/aeri.20210275'
bibtex: '@article{Balsmeier_Fleming_Lück_2023, title={Isolating Personal Knowledge
Spillovers: Coinventor Deaths and Spatial Citation Differentials}, volume={5},
DOI={10.1257/aeri.20210275},
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} }'
chicago: 'Balsmeier, Benjamin, Lee Fleming, and Sonja Lück. “Isolating Personal
Knowledge Spillovers: Coinventor Deaths and Spatial Citation Differentials.” American
Economic Review: Insights 5, no. 1 (2023): 21–33. https://doi.org/10.1257/aeri.20210275.'
ieee: 'B. Balsmeier, L. Fleming, and S. Lück, “Isolating Personal Knowledge Spillovers:
Coinventor Deaths and Spatial Citation Differentials,” American Economic Review:
Insights, vol. 5, no. 1, pp. 21–33, 2023, doi: 10.1257/aeri.20210275.'
mla: 'Balsmeier, Benjamin, et al. “Isolating Personal Knowledge Spillovers: Coinventor
Deaths and Spatial Citation Differentials.” American Economic Review: Insights,
vol. 5, no. 1, American Economic Association, 2023, pp. 21–33, doi:10.1257/aeri.20210275.'
short: 'B. Balsmeier, L. Fleming, S. Lück, American Economic Review: Insights 5
(2023) 21–33.'
date_created: 2023-02-28T20:28:16Z
date_updated: 2023-02-28T20:35:11Z
department:
- _id: '200'
- _id: '281'
- _id: '475'
doi: 10.1257/aeri.20210275
intvolume: ' 5'
issue: '1'
keyword:
- Management
- Monitoring
- Policy and Law
- Geography
- Planning and Development
language:
- iso: eng
page: 21-33
publication: 'American Economic Review: Insights'
publication_identifier:
issn:
- 2640-205X
- 2640-2068
publication_status: published
publisher: American Economic Association
status: public
title: 'Isolating Personal Knowledge Spillovers: Coinventor Deaths and Spatial Citation
Differentials'
type: journal_article
user_id: '950'
volume: 5
year: '2023'
...
---
_id: '43189'
abstract:
- lang: eng
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.
article_number: '1241909'
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: M.
full_name: Stein, M.
last_name: Stein
- first_name: F.
full_name: Schäfer, F.
last_name: Schäfer
- first_name: D.
full_name: Anders, D.
last_name: Anders
- first_name: J. H.
full_name: Littmann, J. H.
last_name: Littmann
- first_name: M.
full_name: Fey, M.
last_name: Fey
- first_name: Alexander
full_name: Trautmann, Alexander
id: '38163'
last_name: Trautmann
- first_name: C.
full_name: Ngo, C.
last_name: Ngo
- first_name: J. T.
full_name: Steiner, J. T.
last_name: Steiner
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: C.
full_name: Fuchs, C.
last_name: Fuchs
- first_name: K.
full_name: Volz, K.
last_name: Volz
- first_name: S.
full_name: Chatterjee, S.
last_name: Chatterjee
citation:
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: Ultrafast Phenomena and Nanophotonics
XXVII. Vol 12419. SPIE Proceedings. SPIE ; 2023. doi:10.1117/12.2650291'
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., & 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. Ultrafast Phenomena and Nanophotonics XXVII, 12419, Article
1241909. https://doi.org/10.1117/12.2650291
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={10.1117/12.2650291},
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} }'
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 Ultrafast Phenomena and Nanophotonics XXVII,
Vol. 12419. SPIE Proceedings. SPIE , 2023. https://doi.org/10.1117/12.2650291.
ieee: 'T. Meier 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 Ultrafast Phenomena and Nanophotonics
XXVII, 2023, vol. 12419, doi: 10.1117/12.2650291.'
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.” Ultrafast Phenomena and Nanophotonics XXVII, vol.
12419, 1241909, SPIE , 2023, doi:10.1117/12.2650291.
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.'
date_created: 2023-03-29T20:15:43Z
date_updated: 2023-04-20T14:42:33Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1117/12.2650291
intvolume: ' 12419'
language:
- iso: eng
publication: Ultrafast Phenomena and Nanophotonics XXVII
publication_status: published
publisher: 'SPIE '
series_title: SPIE Proceedings
status: public
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
type: conference
user_id: '16199'
volume: 12419
year: '2023'
...
---
_id: '43190'
abstract:
- lang: eng
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.
article_number: 124190A
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: Alexander
full_name: Trautmann, Alexander
id: '38163'
last_name: Trautmann
- first_name: M.
full_name: Stein, M.
last_name: Stein
- first_name: F.
full_name: Schäfer, F.
last_name: Schäfer
- first_name: D.
full_name: Anders, D.
last_name: Anders
- first_name: C.
full_name: Ngo, C.
last_name: Ngo
- first_name: J. T.
full_name: Steiner, J. T.
last_name: Steiner
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: S.
full_name: Chatterjee, S.
last_name: Chatterjee
citation:
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: Ultrafast Phenomena and Nanophotonics XXVII. Vol 12419. SPIE Proceedings.
SPIE; 2023. doi:10.1117/12.2650169'
apa: Meier, T., Trautmann, A., Stein, M., Schäfer, F., Anders, D., Ngo, C., Steiner,
J. T., Reichelt, M., & Chatterjee, S. (2023). Analysis of the nonlinear optical
response of excitons in type-I and type-II quantum wells including many-body correlations.
Ultrafast Phenomena and Nanophotonics XXVII, 12419, Article 124190A.
https://doi.org/10.1117/12.2650169
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={10.1117/12.2650169},
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} }'
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 Ultrafast Phenomena and Nanophotonics XXVII, Vol. 12419.
SPIE Proceedings. SPIE, 2023. https://doi.org/10.1117/12.2650169.
ieee: 'T. Meier et al., “Analysis of the nonlinear optical response of excitons
in type-I and type-II quantum wells including many-body correlations,” in Ultrafast
Phenomena and Nanophotonics XXVII, 2023, vol. 12419, doi: 10.1117/12.2650169.'
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.” Ultrafast
Phenomena and Nanophotonics XXVII, vol. 12419, 124190A, SPIE, 2023, doi:10.1117/12.2650169.
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.'
date_created: 2023-03-29T20:22:19Z
date_updated: 2023-04-20T14:41:53Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
doi: 10.1117/12.2650169
intvolume: ' 12419'
language:
- iso: eng
publication: Ultrafast Phenomena and Nanophotonics XXVII
publication_status: published
publisher: SPIE
series_title: SPIE Proceedings
status: public
title: Analysis of the nonlinear optical response of excitons in type-I and type-II
quantum wells including many-body correlations
type: conference
user_id: '16199'
volume: 12419
year: '2023'
...
---
_id: '43034'
abstract:
- lang: eng
text: "Abstract\r\n 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 \r\n \r\n
\ \r\n \r\n \r\n
\ \r\n d\r\n
\ \r\n \r\n
\ max\r\n \r\n
\ \r\n =\r\n
\ 5.5\r\n \r\n mm\r\n
\ \r\n {d}_{{\\rm{\\max
}}}=5.5\\hspace{.5em}{\\rm{mm}}\r\n \r\n
\ . 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."
author:
- first_name: Sebastian
full_name: Josch, Sebastian
id: '38243'
last_name: Josch
- first_name: Steffen
full_name: Jesinghausen, Steffen
id: '3959'
last_name: Jesinghausen
orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Hans-Joachim
full_name: Schmid, Hans-Joachim
id: '464'
last_name: Schmid
orcid: 000-0001-8590-1921
citation:
ama: Josch S, Jesinghausen S, Schmid H-J. Development of an adaptive coaxial concrete
rheometer and rheological characterisation of fresh concrete. Applied Rheology.
2023;33(1). doi:10.1515/arh-2022-0140
apa: Josch, S., Jesinghausen, S., & Schmid, H.-J. (2023). Development of an
adaptive coaxial concrete rheometer and rheological characterisation of fresh
concrete. Applied Rheology, 33(1). https://doi.org/10.1515/arh-2022-0140
bibtex: '@article{Josch_Jesinghausen_Schmid_2023, title={Development of an adaptive
coaxial concrete rheometer and rheological characterisation of fresh concrete},
volume={33}, DOI={10.1515/arh-2022-0140},
number={1}, journal={Applied Rheology}, publisher={Walter de Gruyter GmbH}, author={Josch,
Sebastian and Jesinghausen, Steffen and Schmid, Hans-Joachim}, year={2023} }'
chicago: Josch, Sebastian, Steffen Jesinghausen, and Hans-Joachim Schmid. “Development
of an Adaptive Coaxial Concrete Rheometer and Rheological Characterisation of
Fresh Concrete.” Applied Rheology 33, no. 1 (2023). https://doi.org/10.1515/arh-2022-0140.
ieee: 'S. Josch, S. Jesinghausen, and H.-J. Schmid, “Development of an adaptive
coaxial concrete rheometer and rheological characterisation of fresh concrete,”
Applied Rheology, vol. 33, no. 1, 2023, doi: 10.1515/arh-2022-0140.'
mla: Josch, Sebastian, et al. “Development of an Adaptive Coaxial Concrete Rheometer
and Rheological Characterisation of Fresh Concrete.” Applied Rheology,
vol. 33, no. 1, Walter de Gruyter GmbH, 2023, doi:10.1515/arh-2022-0140.
short: S. Josch, S. Jesinghausen, H.-J. Schmid, Applied Rheology 33 (2023).
date_created: 2023-03-16T19:06:49Z
date_updated: 2023-04-27T11:19:08Z
department:
- _id: '150'
doi: 10.1515/arh-2022-0140
intvolume: ' 33'
issue: '1'
keyword:
- Condensed Matter Physics
- General Materials Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.degruyter.com/document/doi/10.1515/arh-2022-0140/html
oa: '1'
publication: Applied Rheology
publication_identifier:
issn:
- 1617-8106
publication_status: published
publisher: Walter de Gruyter GmbH
quality_controlled: '1'
status: public
title: Development of an adaptive coaxial concrete rheometer and rheological characterisation
of fresh concrete
type: journal_article
user_id: '3959'
volume: 33
year: '2023'
...
---
_id: '43044'
abstract:
- lang: eng
text: 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.
author:
- first_name: Maik
full_name: Holzmüller, Maik
id: '82645'
last_name: Holzmüller
- first_name: Maik
full_name: Linnemann, Maik
last_name: Linnemann
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Verena
full_name: Psyk, Verena
last_name: Psyk
- first_name: 'Verena '
full_name: 'Kräusel, Verena '
last_name: Kräusel
- first_name: Janika
full_name: Kroos, Janika
last_name: Kroos
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: Materials Research Proceedings. Vol 25. Materials
Research Forum LLC; 2023:11-18. doi:10.21741/9781644902417-2'
apa: Holzmüller, M., Linnemann, M., Homberg, W., Psyk, V., Kräusel, V., & Kroos,
J. (2023). Proof of concept for incremental sheet metal forming by means of electromagnetic
and electrohydraulic high-speed forming. Materials Research Proceedings,
25, 11–18. https://doi.org/10.21741/9781644902417-2
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={10.21741/9781644902417-2},
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} }'
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 Materials Research
Proceedings, 25:11–18. Materials Research Forum LLC, 2023. https://doi.org/10.21741/9781644902417-2.
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 Materials Research Proceedings,
Nürnberg, 2023, vol. 25, pp. 11–18, doi: 10.21741/9781644902417-2.'
mla: Holzmüller, Maik, et al. “Proof of Concept for Incremental Sheet Metal Forming
by Means of Electromagnetic and Electrohydraulic High-Speed Forming.” Materials
Research Proceedings, vol. 25, Materials Research Forum LLC, 2023, pp. 11–18,
doi:10.21741/9781644902417-2.
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.'
conference:
end_date: 2023-04-05
location: Nürnberg
name: 20th International Conference on Sheet Metal 2023
start_date: 2023-04-02
date_created: 2023-03-17T10:23:18Z
date_updated: 2023-05-02T11:40:24Z
department:
- _id: '156'
doi: 10.21741/9781644902417-2
intvolume: ' 25'
keyword:
- Incremental Sheet Forming
- Aluminium
- High-Speed Forming
language:
- iso: eng
page: 11-18
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Proof of concept for incremental sheet metal forming by means of electromagnetic
and electrohydraulic high-speed forming
type: conference
user_id: '82645'
volume: 25
year: '2023'
...
---
_id: '45013'
author:
- first_name: M.-A.
full_name: Codescu, M.-A.
last_name: Codescu
- first_name: T.
full_name: Kunze, T.
last_name: Kunze
- first_name: M.
full_name: Weiß, M.
last_name: Weiß
- first_name: Martin
full_name: Brehm, Martin
id: '100167'
last_name: Brehm
- first_name: O.
full_name: Kornilov, O.
last_name: Kornilov
- first_name: D.
full_name: Sebastiani, D.
last_name: Sebastiani
- first_name: E. T. J.
full_name: Nibbering, E. T. J.
last_name: Nibbering
citation:
ama: Codescu M-A, Kunze T, Weiß M, et al. Ultrafast Proton Transfer Pathways Mediated
by Amphoteric Imidazole. J Phys Chem Lett. 2023;14:4775-4785. doi:10.1021/acs.jpclett.3c00595
apa: Codescu, M.-A., Kunze, T., Weiß, M., Brehm, M., Kornilov, O., Sebastiani, D.,
& Nibbering, E. T. J. (2023). Ultrafast Proton Transfer Pathways Mediated
by Amphoteric Imidazole. J. Phys. Chem. Lett., 14, 4775–4785. https://doi.org/10.1021/acs.jpclett.3c00595
bibtex: '@article{Codescu_Kunze_Weiß_Brehm_Kornilov_Sebastiani_Nibbering_2023, title={Ultrafast
Proton Transfer Pathways Mediated by Amphoteric Imidazole}, volume={14}, DOI={10.1021/acs.jpclett.3c00595},
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} }'
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.” J. Phys. Chem. Lett. 14 (2023): 4775–85. https://doi.org/10.1021/acs.jpclett.3c00595.'
ieee: 'M.-A. Codescu et al., “Ultrafast Proton Transfer Pathways Mediated
by Amphoteric Imidazole,” J. Phys. Chem. Lett., vol. 14, pp. 4775–4785,
2023, doi: 10.1021/acs.jpclett.3c00595.'
mla: Codescu, M. A., et al. “Ultrafast Proton Transfer Pathways Mediated by Amphoteric
Imidazole.” J. Phys. Chem. Lett., vol. 14, 2023, pp. 4775–85, doi:10.1021/acs.jpclett.3c00595.
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.
date_created: 2023-05-16T20:22:06Z
date_updated: 2023-05-16T20:49:18Z
department:
- _id: '803'
doi: 10.1021/acs.jpclett.3c00595
extern: '1'
intvolume: ' 14'
language:
- iso: eng
page: 4775-4785
publication: J. Phys. Chem. Lett.
status: public
title: Ultrafast Proton Transfer Pathways Mediated by Amphoteric Imidazole
type: journal_article
user_id: '100167'
volume: 14
year: '2023'
...