---
_id: '27426'
abstract:
- lang: eng
text: "Regularization is used in many different areas of optimization when solutions\r\nare
sought which not only minimize a given function, but also possess a certain\r\ndegree
of regularity. Popular applications are image denoising, sparse\r\nregression
and machine learning. Since the choice of the regularization\r\nparameter is crucial
but often difficult, path-following methods are used to\r\napproximate the entire
regularization path, i.e., the set of all possible\r\nsolutions for all regularization
parameters. Due to their nature, the\r\ndevelopment of these methods requires
structural results about the\r\nregularization path. The goal of this article
is to derive these results for\r\nthe case of a smooth objective function which
is penalized by a piecewise\r\ndifferentiable regularization term. We do this
by treating regularization as a\r\nmultiobjective optimization problem. Our results
suggest that even in this\r\ngeneral case, the regularization path is piecewise
smooth. Moreover, our theory\r\nallows for a classification of the nonsmooth features
that occur in between\r\nsmooth parts. This is demonstrated in two applications,
namely support-vector\r\nmachines and exact penalty methods."
author:
- first_name: Bennet
full_name: Gebken, Bennet
id: '32643'
last_name: Gebken
- first_name: Katharina
full_name: Bieker, Katharina
id: '32829'
last_name: Bieker
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
citation:
ama: Gebken B, Bieker K, Peitz S. On the structure of regularization paths for piecewise
differentiable regularization terms. Journal of Global Optimization. 2023;85(3):709-741.
doi:10.1007/s10898-022-01223-2
apa: Gebken, B., Bieker, K., & Peitz, S. (2023). On the structure of regularization
paths for piecewise differentiable regularization terms. Journal of Global
Optimization, 85(3), 709–741. https://doi.org/10.1007/s10898-022-01223-2
bibtex: '@article{Gebken_Bieker_Peitz_2023, title={On the structure of regularization
paths for piecewise differentiable regularization terms}, volume={85}, DOI={10.1007/s10898-022-01223-2},
number={3}, journal={Journal of Global Optimization}, author={Gebken, Bennet and
Bieker, Katharina and Peitz, Sebastian}, year={2023}, pages={709–741} }'
chicago: 'Gebken, Bennet, Katharina Bieker, and Sebastian Peitz. “On the Structure
of Regularization Paths for Piecewise Differentiable Regularization Terms.” Journal
of Global Optimization 85, no. 3 (2023): 709–41. https://doi.org/10.1007/s10898-022-01223-2.'
ieee: 'B. Gebken, K. Bieker, and S. Peitz, “On the structure of regularization paths
for piecewise differentiable regularization terms,” Journal of Global Optimization,
vol. 85, no. 3, pp. 709–741, 2023, doi: 10.1007/s10898-022-01223-2.'
mla: Gebken, Bennet, et al. “On the Structure of Regularization Paths for Piecewise
Differentiable Regularization Terms.” Journal of Global Optimization, vol.
85, no. 3, 2023, pp. 709–41, doi:10.1007/s10898-022-01223-2.
short: B. Gebken, K. Bieker, S. Peitz, Journal of Global Optimization 85 (2023)
709–741.
date_created: 2021-11-15T09:24:59Z
date_updated: 2023-03-11T17:16:33Z
department:
- _id: '101'
- _id: '655'
doi: 10.1007/s10898-022-01223-2
intvolume: ' 85'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/content/pdf/10.1007/s10898-022-01223-2.pdf
oa: '1'
page: 709-741
publication: Journal of Global Optimization
status: public
title: On the structure of regularization paths for piecewise differentiable regularization
terms
type: journal_article
user_id: '47427'
volume: 85
year: '2023'
...
---
_id: '43018'
article_number: '108557'
author:
- first_name: Samer
full_name: Alhaddad, Samer
id: '42456'
last_name: Alhaddad
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Yevgen
full_name: Grynko, Yevgen
id: '26059'
last_name: Grynko
citation:
ama: Alhaddad S, Förstner J, Grynko Y. Numerical study of light backscattering from
layers of absorbing irregular particles larger than the wavelength. Journal
of Quantitative Spectroscopy and Radiative Transfer. 2023;302. doi:10.1016/j.jqsrt.2023.108557
apa: Alhaddad, S., Förstner, J., & Grynko, Y. (2023). Numerical study of light
backscattering from layers of absorbing irregular particles larger than the wavelength.
Journal of Quantitative Spectroscopy and Radiative Transfer, 302,
Article 108557. https://doi.org/10.1016/j.jqsrt.2023.108557
bibtex: '@article{Alhaddad_Förstner_Grynko_2023, title={Numerical study of light
backscattering from layers of absorbing irregular particles larger than the wavelength},
volume={302}, DOI={10.1016/j.jqsrt.2023.108557},
number={108557}, journal={Journal of Quantitative Spectroscopy and Radiative Transfer},
publisher={Elsevier BV}, author={Alhaddad, Samer and Förstner, Jens and Grynko,
Yevgen}, year={2023} }'
chicago: Alhaddad, Samer, Jens Förstner, and Yevgen Grynko. “Numerical Study of
Light Backscattering from Layers of Absorbing Irregular Particles Larger than
the Wavelength.” Journal of Quantitative Spectroscopy and Radiative Transfer
302 (2023). https://doi.org/10.1016/j.jqsrt.2023.108557.
ieee: 'S. Alhaddad, J. Förstner, and Y. Grynko, “Numerical study of light backscattering
from layers of absorbing irregular particles larger than the wavelength,” Journal
of Quantitative Spectroscopy and Radiative Transfer, vol. 302, Art. no. 108557,
2023, doi: 10.1016/j.jqsrt.2023.108557.'
mla: Alhaddad, Samer, et al. “Numerical Study of Light Backscattering from Layers
of Absorbing Irregular Particles Larger than the Wavelength.” Journal of Quantitative
Spectroscopy and Radiative Transfer, vol. 302, 108557, Elsevier BV, 2023,
doi:10.1016/j.jqsrt.2023.108557.
short: S. Alhaddad, J. Förstner, Y. Grynko, Journal of Quantitative Spectroscopy
and Radiative Transfer 302 (2023).
date_created: 2023-03-14T12:32:54Z
date_updated: 2023-03-15T17:36:13Z
ddc:
- '530'
department:
- _id: '61'
doi: 10.1016/j.jqsrt.2023.108557
file:
- access_level: local
content_type: application/pdf
creator: fossie
date_created: 2023-03-15T15:58:15Z
date_updated: 2023-03-15T15:58:15Z
file_id: '43028'
file_name: 2023-03 Alhaddad - JQSRT - Numerical study of light backscattering from
layers of absorbing particles larger than the wavelength.pdf
file_size: 1508833
relation: main_file
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-03-15T17:35:29Z
date_updated: 2023-03-15T17:35:29Z
file_id: '43029'
file_name: 2023-03 Alhaddad - JQSRT - Numerical study of light backscattering from
layers of absorbing particles larger than the wavelength (accepted manuscript).pdf
file_size: 4254386
relation: main_file
file_date_updated: 2023-03-15T17:35:29Z
has_accepted_license: '1'
intvolume: ' 302'
keyword:
- tet_topic_scattering
language:
- iso: eng
license: https://creativecommons.org/licenses/by-nc-nd/4.0/
oa: '1'
project:
- _id: '52'
name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Journal of Quantitative Spectroscopy and Radiative Transfer
publication_identifier:
issn:
- 0022-4073
publication_status: published
publisher: Elsevier BV
status: public
title: Numerical study of light backscattering from layers of absorbing irregular
particles larger than the wavelength
type: journal_article
user_id: '158'
volume: 302
year: '2023'
...
---
_id: '31849'
author:
- first_name: Max
full_name: Hoffmann, Max
id: '32202'
last_name: Hoffmann
orcid: 0000-0002-6964-7123
- first_name: Rolf
full_name: Biehler, Rolf
id: '16274'
last_name: Biehler
citation:
ama: 'Hoffmann M, Biehler R. Student Teachers ’ Knowledge of Congruence before a
University Course on Geometry. In: Trigueros M, Barquero B, Hochmuth R, Peters
J, eds. Proceedings of the Fourth Conference of the International Network for
Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022).
University of Hannover and INDRUM.; 2023.'
apa: Hoffmann, M., & Biehler, R. (2023). Student Teachers ’ Knowledge of Congruence
before a University Course on Geometry. In M. Trigueros, B. Barquero, R. Hochmuth,
& J. Peters (Eds.), Proceedings of the Fourth Conference of the International
Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
2022). University of Hannover and INDRUM.
bibtex: '@inproceedings{Hoffmann_Biehler_2023, place={Hannover}, title={Student
Teachers ’ Knowledge of Congruence before a University Course on Geometry}, booktitle={Proceedings
of the Fourth Conference of the International Network for Didactic Research in
University Mathematics (INDRUM 2022, 19-22 October 2022)}, publisher={University
of Hannover and INDRUM.}, author={Hoffmann, Max and Biehler, Rolf}, editor={Trigueros,
Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023}
}'
chicago: 'Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence
before a University Course on Geometry.” In Proceedings of the Fourth Conference
of the International Network for Didactic Research in University Mathematics (INDRUM
2022, 19-22 October 2022), edited by Marı́a Trigueros, Berta Barquero, Reinhard
Hochmuth, and Jana Peters. Hannover: University of Hannover and INDRUM., 2023.'
ieee: M. Hoffmann and R. Biehler, “Student Teachers ’ Knowledge of Congruence before
a University Course on Geometry,” in Proceedings of the Fourth Conference of
the International Network for Didactic Research in University Mathematics (INDRUM
2022, 19-22 October 2022), 2023.
mla: Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence
before a University Course on Geometry.” Proceedings of the Fourth Conference
of the International Network for Didactic Research in University Mathematics (INDRUM
2022, 19-22 October 2022), edited by Marı́a Trigueros et al., University of
Hannover and INDRUM., 2023.
short: 'M. Hoffmann, R. Biehler, in: M. Trigueros, B. Barquero, R. Hochmuth, J.
Peters (Eds.), Proceedings of the Fourth Conference of the International Network
for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022),
University of Hannover and INDRUM., Hannover, 2023.'
date_created: 2022-06-12T11:07:34Z
date_updated: 2023-03-25T10:11:35Z
ddc:
- '370'
- '510'
department:
- _id: '97'
editor:
- first_name: Marı́a
full_name: Trigueros, Marı́a
last_name: Trigueros
- first_name: Berta
full_name: Barquero, Berta
last_name: Barquero
- first_name: Reinhard
full_name: Hochmuth, Reinhard
last_name: Hochmuth
- first_name: Jana
full_name: Peters, Jana
last_name: Peters
file:
- access_level: closed
content_type: application/pdf
creator: maxh
date_created: 2023-03-25T10:01:03Z
date_updated: 2023-03-25T10:01:03Z
file_id: '43096'
file_name: HoffmannBiehler2022_indrum_congruence.pdf
file_size: 201942
relation: main_file
success: 1
file_date_updated: 2023-03-25T10:01:03Z
has_accepted_license: '1'
keyword:
- Teaching and learning of specific topics in university mathematics
- Transition to
- across and from university mathematics
- Student Teachers
- Geometry
- Congruence
- Double Discontinuity.
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.univ-reims.fr/INDRUM2022/
oa: '1'
place: Hannover
publication: Proceedings of the Fourth Conference of the International Network for
Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)
publication_status: published
publisher: University of Hannover and INDRUM.
quality_controlled: '1'
status: public
title: Student Teachers ’ Knowledge of Congruence before a University Course on Geometry
type: conference
user_id: '32202'
year: '2023'
...
---
_id: '43097'
author:
- first_name: Ignasio
full_name: Florensa, Ignasio
last_name: Florensa
- first_name: Max
full_name: Hoffmann, Max
id: '32202'
last_name: Hoffmann
orcid: 0000-0002-6964-7123
- first_name: Avenilde
full_name: Romo Vázquez, Avenilde
last_name: Romo Vázquez
- first_name: Michelle
full_name: Zandieh, Michelle
last_name: Zandieh
- first_name: Rafael
full_name: Martínez-Planell, Rafael
last_name: Martínez-Planell
citation:
ama: 'Florensa I, Hoffmann M, Romo Vázquez A, Zandieh M, Martínez-Planell R. Innovations
in university teaching based on mathematic education research. In: Trigueros M,
Barquero B, Hochmuth R, Peters J, eds. Proceedings of the Fourth Conference
of the International Network for Didactic Research in University Mathematics (INDRUM
2022, 19-22 October 2022). ; 2023.'
apa: Florensa, I., Hoffmann, M., Romo Vázquez, A., Zandieh, M., & Martínez-Planell,
R. (2023). Innovations in university teaching based on mathematic education research.
In M. Trigueros, B. Barquero, R. Hochmuth, & J. Peters (Eds.), Proceedings
of the Fourth Conference of the International Network for Didactic Research in
University Mathematics (INDRUM 2022, 19-22 October 2022).
bibtex: '@inproceedings{Florensa_Hoffmann_Romo Vázquez_Zandieh_Martínez-Planell_2023,
place={Hannover}, title={Innovations in university teaching based on mathematic
education research}, booktitle={Proceedings of the Fourth Conference of the International
Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
2022)}, author={Florensa, Ignasio and Hoffmann, Max and Romo Vázquez, Avenilde
and Zandieh, Michelle and Martínez-Planell, Rafael}, editor={Trigueros, Marı́a
and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023} }'
chicago: Florensa, Ignasio, Max Hoffmann, Avenilde Romo Vázquez, Michelle Zandieh,
and Rafael Martínez-Planell. “Innovations in University Teaching Based on Mathematic
Education Research.” In Proceedings of the Fourth Conference of the International
Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
2022), edited by Marı́a Trigueros, Berta Barquero, Reinhard Hochmuth, and
Jana Peters. Hannover, 2023.
ieee: I. Florensa, M. Hoffmann, A. Romo Vázquez, M. Zandieh, and R. Martínez-Planell,
“Innovations in university teaching based on mathematic education research,” in
Proceedings of the Fourth Conference of the International Network for Didactic
Research in University Mathematics (INDRUM 2022, 19-22 October 2022), 2023.
mla: Florensa, Ignasio, et al. “Innovations in University Teaching Based on Mathematic
Education Research.” Proceedings of the Fourth Conference of the International
Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
2022), edited by Marı́a Trigueros et al., 2023.
short: 'I. Florensa, M. Hoffmann, A. Romo Vázquez, M. Zandieh, R. Martínez-Planell,
in: M. Trigueros, B. Barquero, R. Hochmuth, J. Peters (Eds.), Proceedings of the
Fourth Conference of the International Network for Didactic Research in University
Mathematics (INDRUM 2022, 19-22 October 2022), Hannover, 2023.'
date_created: 2023-03-25T10:09:06Z
date_updated: 2023-03-25T10:10:58Z
ddc:
- '370'
- '510'
department:
- _id: '97'
editor:
- first_name: Marı́a
full_name: Trigueros, Marı́a
last_name: Trigueros
- first_name: Berta
full_name: Barquero, Berta
last_name: Barquero
- first_name: Reinhard
full_name: Hochmuth, Reinhard
last_name: Hochmuth
- first_name: Jana
full_name: Peters, Jana
last_name: Peters
file:
- access_level: closed
content_type: application/pdf
creator: maxh
date_created: 2023-03-25T10:07:54Z
date_updated: 2023-03-25T10:07:54Z
file_id: '43098'
file_name: 2022_FlorensaEtAl_indrum_panelInnovations.pdf
file_size: 642388
relation: main_file
success: 1
file_date_updated: 2023-03-25T10:07:54Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://hal.univ-reims.fr/INDRUM2022/
oa: '1'
place: Hannover
publication: Proceedings of the Fourth Conference of the International Network for
Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)
quality_controlled: '1'
status: public
title: Innovations in university teaching based on mathematic education research
type: conference
user_id: '32202'
year: '2023'
...
---
_id: '43186'
author:
- first_name: Johannes
full_name: Süßmann, Johannes
id: '16220'
last_name: Süßmann
orcid: 0000-0001-5716-0863
citation:
ama: Süßmann J. Pantheon.; 2023.
apa: Süßmann, J. (2023). Pantheon.
bibtex: '@book{Süßmann_2023, place={Paderborn}, series={BloKK. Der Blog des Zentrums
für Komparative Theologie und Kulturwissenschaften}, title={Pantheon}, author={Süßmann,
Johannes}, year={2023}, collection={BloKK. Der Blog des Zentrums für Komparative
Theologie und Kulturwissenschaften} }'
chicago: Süßmann, Johannes. Pantheon. BloKK. Der Blog des Zentrums für Komparative
Theologie und Kulturwissenschaften. Paderborn, 2023.
ieee: J. Süßmann, Pantheon. Paderborn, 2023.
mla: Süßmann, Johannes. Pantheon. 2023.
short: J. Süßmann, Pantheon, Paderborn, 2023.
date_created: 2023-03-29T16:29:23Z
date_updated: 2023-03-29T16:39:21Z
department:
- _id: '446'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://blogs.uni-paderborn.de/zekkblog/2023/03/24/pantheon/
oa: '1'
place: Paderborn
publication_status: published
series_title: BloKK. Der Blog des Zentrums für Komparative Theologie und Kulturwissenschaften
status: public
title: Pantheon
type: misc
user_id: '16220'
year: '2023'
...
---
_id: '43464'
abstract:
- lang: eng
text: Lightweight design is a common approach to reduce energy demand in
the use stage of vehicles. The production of lightweight materials is usually
associated with an increase in energy demand, so the environmental impacts of
lightweight structures need to be assessed holistically using a life cycle assessment.
To estimate the life cycle environmental impacts of a product in its developmental
stage, for example, by life cycle engineering, future changes in relevant influencing
factors must be considered. Prospective life cycle assessment provides methods
for integrating future scenarios into life cycle assessment studies. However,
approaches for integrating prospective life cycle assessment into product development
are limited. The objective of this work is to provide the methodological foundation
for integrating future scenarios of relevant influencing factors in the development
of lightweight structures. The applicability of the novel methodology is demonstrated
by a case study of a structural component in a steel, aluminium, and hybrid design.
The results show that appropriate decarbonisation measures can reduce the life
cycle greenhouse gas emissions by up to 95 percent until 2050. We also found that
shifts in the environmentally optimal design are possible in future scenarios.
Therefore, the methodology and data provided contribute to improved decision-making
in product development.
article_number: '3371'
author:
- first_name: Moritz
full_name: Ostermann, Moritz
id: '44763'
last_name: Ostermann
orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Julian
full_name: Grenz, Julian
last_name: Grenz
- first_name: Marcel
full_name: Triebus, Marcel
id: '66036'
last_name: Triebus
- first_name: Felipe
full_name: Cerdas, Felipe
last_name: Cerdas
- first_name: Thorsten
full_name: Marten, Thorsten
id: '338'
last_name: Marten
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
- first_name: Christoph
full_name: Herrmann, Christoph
last_name: Herrmann
citation:
ama: 'Ostermann M, Grenz J, Triebus M, et al. Integrating Prospective Scenarios
in Life Cycle Engineering: Case Study of Lightweight Structures. Energies.
2023;16(8). doi:10.3390/en16083371'
apa: 'Ostermann, M., Grenz, J., Triebus, M., Cerdas, F., Marten, T., Tröster, T.,
& Herrmann, C. (2023). Integrating Prospective Scenarios in Life Cycle Engineering:
Case Study of Lightweight Structures. Energies, 16(8), Article 3371.
https://doi.org/10.3390/en16083371'
bibtex: '@article{Ostermann_Grenz_Triebus_Cerdas_Marten_Tröster_Herrmann_2023, title={Integrating
Prospective Scenarios in Life Cycle Engineering: Case Study of Lightweight Structures},
volume={16}, DOI={10.3390/en16083371},
number={83371}, journal={Energies}, publisher={MDPI AG}, author={Ostermann, Moritz
and Grenz, Julian and Triebus, Marcel and Cerdas, Felipe and Marten, Thorsten
and Tröster, Thomas and Herrmann, Christoph}, year={2023} }'
chicago: 'Ostermann, Moritz, Julian Grenz, Marcel Triebus, Felipe Cerdas, Thorsten
Marten, Thomas Tröster, and Christoph Herrmann. “Integrating Prospective Scenarios
in Life Cycle Engineering: Case Study of Lightweight Structures.” Energies
16, no. 8 (2023). https://doi.org/10.3390/en16083371.'
ieee: 'M. Ostermann et al., “Integrating Prospective Scenarios in Life Cycle
Engineering: Case Study of Lightweight Structures,” Energies, vol. 16,
no. 8, Art. no. 3371, 2023, doi: 10.3390/en16083371.'
mla: 'Ostermann, Moritz, et al. “Integrating Prospective Scenarios in Life Cycle
Engineering: Case Study of Lightweight Structures.” Energies, vol. 16,
no. 8, 3371, MDPI AG, 2023, doi:10.3390/en16083371.'
short: M. Ostermann, J. Grenz, M. Triebus, F. Cerdas, T. Marten, T. Tröster, C.
Herrmann, Energies 16 (2023).
date_created: 2023-04-13T09:11:33Z
date_updated: 2023-04-13T09:19:56Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/en16083371
intvolume: ' 16'
issue: '8'
keyword:
- Life Cycle Engineering
- Life Cycle Assessment
- Lightweight Design
- Prospective LCA
- Future-oriented LCA
- Energy System
- Material production
- Sustainable production
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/1996-1073/16/8/3371
oa: '1'
publication: Energies
publication_identifier:
issn:
- 1996-1073
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Integrating Prospective Scenarios in Life Cycle Engineering: Case Study of
Lightweight Structures'
type: journal_article
user_id: '44763'
volume: 16
year: '2023'
...
---
_id: '44058'
abstract:
- lang: eng
text: "A relatively small body of research has been conducted on the near-
and long-term effects of study abroad (SA) to date. This existing research suggests
that SA effects on language skills tend to be volatile, while the impact on various
aspects of learners’ personal, academic, and professional development may be longer-lasting.
Yet, learner perspectives on the dynamics and durability of such effects, in particular
in the context of short-term SA programs, remain largely unexplored. This study
hence investigates the near-term impact of short-term SA programs as experienced
by students within the first months and years following their sojourns. A qualitative
case-study design is employed to examine the accounts of four American students
of German, who studied abroad in Austria for four weeks and were interviewed repeatedly
over a period of up to 40 months after their sojourns. The results suggest that,
from the students’ perspective, many effects deteriorate in the near term, although
the overall sojourn experience still appears influential.\r\nAbstract in German\r\nNur
wenige Forschungsvorhaben haben sich bislang den mittel- bis langfristigen Auswirkungen
studentischer Auslandsaufenthalte gewidmet; die bisherige Datenlage deutet jedoch
darauf hin, dass die Auswirkungen auf sprachliche Kompetenzen eher unbeständig
sind, wohingegen die persönliche, studiums- und berufsbezogene Entwicklung der
Lernenden länger von einem Auslandsaufenthalt beeinflusst wird. Die Dynamik und
Beständigkeit derartiger Auswirkungen wurden jedoch kaum mit Blick auf kurze Auslandsaufenthalte
(≤ acht Wochen) sowie aus der Perspektive der Studierenden erforscht, was die
vorliegende Studie insbesondere hinsichtlich mittelfristiger Effekte fokussiert.
Mittels eines qualitativen Fallstudiendesigns werden die Interviewdaten vier amerikanischer
Deutschlernender untersucht, die sich vier Wochen in Österreich aufhielten und
in einem Zeitraum von bis zu 40 Monaten nach ihrem Aufenthalt wiederholt befragt
wurden. Die Ergebnisse zeigen, dass viele Auswirkungen eines solchen Aufenthalts
aus studentischer Perspektive mittelfristig verblassen, auch wenn der Auslandsaufenthalt
im Gesamten weiterhin als einflussreiche Erfahrung wahrgenommen wird."
author:
- first_name: Mareike
full_name: Müller, Mareike
id: '71540'
last_name: Müller
orcid: 0000-0002-4940-0297
citation:
ama: 'Müller M. Near-Term Effects of Short-Term Study Abroad: A Longitudinal Examination
of Learner Perceptions. Frontiers: The Interdisciplinary Journal of Study Abroad.
2023;35(1):275-304. doi:10.36366/frontiers.v35i1.684'
apa: 'Müller, M. (2023). Near-Term Effects of Short-Term Study Abroad: A Longitudinal
Examination of Learner Perceptions. Frontiers: The Interdisciplinary Journal
of Study Abroad, 35(1), 275–304. https://doi.org/10.36366/frontiers.v35i1.684'
bibtex: '@article{Müller_2023, title={Near-Term Effects of Short-Term Study Abroad:
A Longitudinal Examination of Learner Perceptions}, volume={35}, DOI={10.36366/frontiers.v35i1.684},
number={1}, journal={Frontiers: The Interdisciplinary Journal of Study Abroad},
publisher={The Forum on Education Abroad}, author={Müller, Mareike}, year={2023},
pages={275–304} }'
chicago: 'Müller, Mareike. “Near-Term Effects of Short-Term Study Abroad: A Longitudinal
Examination of Learner Perceptions.” Frontiers: The Interdisciplinary Journal
of Study Abroad 35, no. 1 (2023): 275–304. https://doi.org/10.36366/frontiers.v35i1.684.'
ieee: 'M. Müller, “Near-Term Effects of Short-Term Study Abroad: A Longitudinal
Examination of Learner Perceptions,” Frontiers: The Interdisciplinary Journal
of Study Abroad, vol. 35, no. 1, pp. 275–304, 2023, doi: 10.36366/frontiers.v35i1.684.'
mla: 'Müller, Mareike. “Near-Term Effects of Short-Term Study Abroad: A Longitudinal
Examination of Learner Perceptions.” Frontiers: The Interdisciplinary Journal
of Study Abroad, vol. 35, no. 1, The Forum on Education Abroad, 2023, pp.
275–304, doi:10.36366/frontiers.v35i1.684.'
short: 'M. Müller, Frontiers: The Interdisciplinary Journal of Study Abroad 35 (2023)
275–304.'
date_created: 2023-04-19T07:21:28Z
date_updated: 2023-04-19T07:25:03Z
department:
- _id: '468'
doi: 10.36366/frontiers.v35i1.684
intvolume: ' 35'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://frontiersjournal.org/index.php/Frontiers/article/view/684
oa: '1'
page: 275-304
publication: 'Frontiers: The Interdisciplinary Journal of Study Abroad'
publication_identifier:
issn:
- 2380-8144
- 1085-4568
publication_status: published
publisher: The Forum on Education Abroad
status: public
title: 'Near-Term Effects of Short-Term Study Abroad: A Longitudinal Examination of
Learner Perceptions'
type: journal_article
user_id: '71540'
volume: 35
year: '2023'
...
---
_id: '42252'
abstract:
- lang: ger
text: Die Wirtschaftlichkeit von Wärmemotoren wird maßgeblich durch die Rückführung
von Wärme in Rekuperatoren beeinflusst. Beim isobaren Expansionsmotor vom Bush-Typ,
einem Wärmemotor, welcher bereits mit Wärmequellen ab 60°C betrieben werden kann,
steigt der thermische Wirkungsgrad durch den Einsatz von Rekuperatoren signifikant.
Gleichzeitig wirken sich das Fluidvolumen des Wärmeübertragers sowie der beim
Betrieb auftretende Druckverlust negativ auf den thermischen Wirkungsrad aus.
In dieser Arbeit wird der Zusammenhang von Totvolumen, Druckverlust und Wärmerückgewinnung
untersucht und Empfehlungen für den Betrieb von Rekuperatoren am isobaren Expansionsmotor
gegeben.
author:
- first_name: Nils
full_name: Mügge, Nils
id: '72972'
last_name: Mügge
- first_name: Alexander
full_name: Kronberg, Alexander
last_name: Kronberg
- first_name: Maxim
full_name: Glushenkov, Maxim
last_name: Glushenkov
- first_name: Eugeny Y.
full_name: Kenig, Eugeny Y.
id: '665'
last_name: Kenig
citation:
ama: Mügge N, Kronberg A, Glushenkov M, Kenig EY. Untersuchung überlagerter Effekte
von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor.
Chemie Ingenieur Technik. 2023;95(5). doi:10.1002/cite.202200243
apa: Mügge, N., Kronberg, A., Glushenkov, M., & Kenig, E. Y. (2023). Untersuchung
überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren
Expansionsmotor. Chemie Ingenieur Technik, 95(5). https://doi.org/10.1002/cite.202200243
bibtex: '@article{Mügge_Kronberg_Glushenkov_Kenig_2023, title={Untersuchung überlagerter
Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor},
volume={95}, DOI={10.1002/cite.202200243},
number={5}, journal={Chemie Ingenieur Technik}, publisher={Wiley}, author={Mügge,
Nils and Kronberg, Alexander and Glushenkov, Maxim and Kenig, Eugeny Y.}, year={2023}
}'
chicago: Mügge, Nils, Alexander Kronberg, Maxim Glushenkov, and Eugeny Y. Kenig.
“Untersuchung überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation
am isobaren Expansionsmotor.” Chemie Ingenieur Technik 95, no. 5 (2023).
https://doi.org/10.1002/cite.202200243.
ieee: 'N. Mügge, A. Kronberg, M. Glushenkov, and E. Y. Kenig, “Untersuchung überlagerter
Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor,”
Chemie Ingenieur Technik, vol. 95, no. 5, 2023, doi: 10.1002/cite.202200243.'
mla: Mügge, Nils, et al. “Untersuchung überlagerter Effekte von Druckverlust und
Totvolumen durch Rekuperation am isobaren Expansionsmotor.” Chemie Ingenieur
Technik, vol. 95, no. 5, Wiley, 2023, doi:10.1002/cite.202200243.
short: N. Mügge, A. Kronberg, M. Glushenkov, E.Y. Kenig, Chemie Ingenieur Technik
95 (2023).
date_created: 2023-02-22T06:35:52Z
date_updated: 2023-04-27T07:26:18Z
department:
- _id: '9'
- _id: '145'
doi: 10.1002/cite.202200243
intvolume: ' 95'
issue: '5'
keyword:
- Isobarer Expansionsmotor
- Dynamische Wärmeübertragungsmodellierung
- Phasenwechsel
- dichte Arbeitsmedien
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://onlinelibrary.wiley.com/doi/10.1002/cite.202200243
oa: '1'
publication: Chemie Ingenieur Technik
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Untersuchung überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation
am isobaren Expansionsmotor
type: journal_article
user_id: '72972'
volume: 95
year: '2023'
...
---
_id: '36983'
abstract:
- lang: eng
text: "AbstractThe use of structured measuring
systems to prevent wall slip is a common approach to obtain absolute rheological
values. Typically, only the minimum distance between the measuring surfaces is
used for further calculation, implying that no flow occurs between the structural
elements. But this assumption is misleading, and a gap correction is necessary.
To determine the radius correction $$\\Delta
r$$\r\n
\ \r\n Δ\r\n r\r\n
\ \r\n
for specific geometries, we conducted investigations on three Newtonian fluids
(two silicon oils and one suspension considered to be Newtonian in the relevant
shear rate range). The results show that $$\\Delta
r$$\r\n
\ \r\n Δ\r\n r\r\n
\ \r\n
is not only shear- and material-independent, but geometry-dependent, providing
a Newtonian flow behaviour in a similar viscosity range. Therefore, a correction
value can be determined with only minute deviations in different Newtonian fluids.
As the conducted laboratory measurements are very time-consuming and expensive,
a CFD-approach with only very small deviations was additionally developed and
compared for validation purposes. Therefore, simulation is an effective and resource-efficient
alternative to the presented laboratory measurements to determine $$\\Delta
r$$\r\n
\ \r\n Δ\r\n r\r\n
\ \r\n
for the correction of structured coaxial geometries even for non-Newtonian fluids
in the future."
article_type: original
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: Christopher
full_name: Dechert, Christopher
id: '69828'
last_name: Dechert
- 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, Dechert C, Schmid H-J. Experimental and simulative
determination and correction of the effective gap extension in structured coaxial
measuring systems. Rheologica Acta. Published online 2023. doi:10.1007/s00397-023-01383-2
apa: Josch, S., Jesinghausen, S., Dechert, C., & Schmid, H.-J. (2023). Experimental
and simulative determination and correction of the effective gap extension in
structured coaxial measuring systems. Rheologica Acta. https://doi.org/10.1007/s00397-023-01383-2
bibtex: '@article{Josch_Jesinghausen_Dechert_Schmid_2023, title={Experimental and
simulative determination and correction of the effective gap extension in structured
coaxial measuring systems}, DOI={10.1007/s00397-023-01383-2},
journal={Rheologica Acta}, publisher={Springer Science and Business Media LLC},
author={Josch, Sebastian and Jesinghausen, Steffen and Dechert, Christopher and
Schmid, Hans-Joachim}, year={2023} }'
chicago: Josch, Sebastian, Steffen Jesinghausen, Christopher Dechert, and Hans-Joachim
Schmid. “Experimental and Simulative Determination and Correction of the Effective
Gap Extension in Structured Coaxial Measuring Systems.” Rheologica Acta,
2023. https://doi.org/10.1007/s00397-023-01383-2.
ieee: 'S. Josch, S. Jesinghausen, C. Dechert, and H.-J. Schmid, “Experimental and
simulative determination and correction of the effective gap extension in structured
coaxial measuring systems,” Rheologica Acta, 2023, doi: 10.1007/s00397-023-01383-2.'
mla: Josch, Sebastian, et al. “Experimental and Simulative Determination and Correction
of the Effective Gap Extension in Structured Coaxial Measuring Systems.” Rheologica
Acta, Springer Science and Business Media LLC, 2023, doi:10.1007/s00397-023-01383-2.
short: S. Josch, S. Jesinghausen, C. Dechert, H.-J. Schmid, Rheologica Acta (2023).
date_created: 2023-01-17T08:04:24Z
date_updated: 2023-03-14T07:41:28Z
department:
- _id: '150'
doi: 10.1007/s00397-023-01383-2
keyword:
- rheology
- rheometry
- suspension
- coaxial
- correction
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s00397-023-01383-2
oa: '1'
publication: Rheologica Acta
publication_identifier:
issn:
- 0035-4511
- 1435-1528
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Experimental and simulative determination and correction of the effective gap
extension in structured coaxial measuring systems
type: journal_article
user_id: '3959'
year: '2023'
...
---
_id: '30125'
abstract:
- lang: eng
text: We present an approach for guaranteed constraint satisfaction by means of
data-based optimal control, where the model is unknown and has to be obtained
from measurement data. To this end, we utilize the Koopman framework and an eDMD-based
bilinear surrogate modeling approach for control systems to show an error bound
on predicted observables, i.e., functions of the state. This result is then applied
to the constraints of the optimal control problem to show that satisfaction of
tightened constraints in the purely data-based surrogate model implies constraint
satisfaction for the original system.
author:
- first_name: Manuel
full_name: Schaller, Manuel
last_name: Schaller
- first_name: Karl
full_name: Worthmann, Karl
last_name: Worthmann
- first_name: Friedrich
full_name: Philipp, Friedrich
last_name: Philipp
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
- first_name: Feliks
full_name: Nüske, Feliks
id: '81513'
last_name: Nüske
orcid: 0000-0003-2444-7889
citation:
ama: 'Schaller M, Worthmann K, Philipp F, Peitz S, Nüske F. Towards reliable data-based
optimal and predictive control using extended DMD. In: IFAC-PapersOnLine.
Vol 56. ; 2023:169-174. doi:10.1016/j.ifacol.2023.02.029'
apa: Schaller, M., Worthmann, K., Philipp, F., Peitz, S., & Nüske, F. (2023).
Towards reliable data-based optimal and predictive control using extended DMD.
IFAC-PapersOnLine, 56(1), 169–174. https://doi.org/10.1016/j.ifacol.2023.02.029
bibtex: '@inproceedings{Schaller_Worthmann_Philipp_Peitz_Nüske_2023, title={Towards
reliable data-based optimal and predictive control using extended DMD}, volume={56},
DOI={10.1016/j.ifacol.2023.02.029},
number={1}, booktitle={IFAC-PapersOnLine}, author={Schaller, Manuel and Worthmann,
Karl and Philipp, Friedrich and Peitz, Sebastian and Nüske, Feliks}, year={2023},
pages={169–174} }'
chicago: Schaller, Manuel, Karl Worthmann, Friedrich Philipp, Sebastian Peitz, and
Feliks Nüske. “Towards Reliable Data-Based Optimal and Predictive Control Using
Extended DMD.” In IFAC-PapersOnLine, 56:169–74, 2023. https://doi.org/10.1016/j.ifacol.2023.02.029.
ieee: 'M. Schaller, K. Worthmann, F. Philipp, S. Peitz, and F. Nüske, “Towards reliable
data-based optimal and predictive control using extended DMD,” in IFAC-PapersOnLine,
2023, vol. 56, no. 1, pp. 169–174, doi: 10.1016/j.ifacol.2023.02.029.'
mla: Schaller, Manuel, et al. “Towards Reliable Data-Based Optimal and Predictive
Control Using Extended DMD.” IFAC-PapersOnLine, vol. 56, no. 1, 2023, pp.
169–74, doi:10.1016/j.ifacol.2023.02.029.
short: 'M. Schaller, K. Worthmann, F. Philipp, S. Peitz, F. Nüske, in: IFAC-PapersOnLine,
2023, pp. 169–174.'
conference:
name: 12th IFAC Symposium on Nonlinear Control Systems (NOLCOS)
date_created: 2022-02-25T17:14:58Z
date_updated: 2023-03-17T15:55:33Z
department:
- _id: '655'
doi: 10.1016/j.ifacol.2023.02.029
external_id:
arxiv:
- '2202.09084'
intvolume: ' 56'
issue: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S2405896323002173/pdf?md5=164ee9a0343a1bd0e0b9ac4187e44b77&pid=1-s2.0-S2405896323002173-main.pdf
oa: '1'
page: 169-174
publication: IFAC-PapersOnLine
publication_status: published
status: public
title: Towards reliable data-based optimal and predictive control using extended DMD
type: conference
user_id: '47427'
volume: 56
year: '2023'
...
---
_id: '43094'
abstract:
- lang: eng
text:
article_type: letter_note
author:
- first_name: Tamara
full_name: Heck, Tamara
last_name: Heck
- first_name: Isabel
full_name: Steinhardt, Isabel
id: '90339'
last_name: Steinhardt
orcid: https://orcid.org/0000-0002-2590-6189
- first_name: Rima-Maria
full_name: Rahal, Rima-Maria
last_name: Rahal
- first_name: Moritz
full_name: Schubotz, Moritz
last_name: Schubotz
- first_name: Dominik
full_name: Scholl, Dominik
last_name: Scholl
- first_name: Sarah
full_name: Behrens, Sarah
last_name: Behrens
citation:
ama: 'Heck T, Steinhardt I, Rahal R-M, Schubotz M, Scholl D, Behrens S. Bootstrapping
the Open Science culture: The fellowship approach. Research Ideas and Outcomes.
2023;9. doi:10.3897/rio.9.e103675'
apa: 'Heck, T., Steinhardt, I., Rahal, R.-M., Schubotz, M., Scholl, D., & Behrens,
S. (2023). Bootstrapping the Open Science culture: The fellowship approach. Research
Ideas and Outcomes, 9. https://doi.org/10.3897/rio.9.e103675'
bibtex: '@article{Heck_Steinhardt_Rahal_Schubotz_Scholl_Behrens_2023, title={Bootstrapping
the Open Science culture: The fellowship approach}, volume={9}, DOI={10.3897/rio.9.e103675},
journal={Research Ideas and Outcomes}, publisher={Pensoft Publishers}, author={Heck,
Tamara and Steinhardt, Isabel and Rahal, Rima-Maria and Schubotz, Moritz and Scholl,
Dominik and Behrens, Sarah}, year={2023} }'
chicago: 'Heck, Tamara, Isabel Steinhardt, Rima-Maria Rahal, Moritz Schubotz, Dominik
Scholl, and Sarah Behrens. “Bootstrapping the Open Science Culture: The Fellowship
Approach.” Research Ideas and Outcomes 9 (2023). https://doi.org/10.3897/rio.9.e103675.'
ieee: 'T. Heck, I. Steinhardt, R.-M. Rahal, M. Schubotz, D. Scholl, and S. Behrens,
“Bootstrapping the Open Science culture: The fellowship approach,” Research
Ideas and Outcomes, vol. 9, 2023, doi: 10.3897/rio.9.e103675.'
mla: 'Heck, Tamara, et al. “Bootstrapping the Open Science Culture: The Fellowship
Approach.” Research Ideas and Outcomes, vol. 9, Pensoft Publishers, 2023,
doi:10.3897/rio.9.e103675.'
short: T. Heck, I. Steinhardt, R.-M. Rahal, M. Schubotz, D. Scholl, S. Behrens,
Research Ideas and Outcomes 9 (2023).
date_created: 2023-03-24T06:40:51Z
date_updated: 2023-03-24T06:43:01Z
department:
- _id: '121'
doi: 10.3897/rio.9.e103675
intvolume: ' 9'
keyword:
- Open Science
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://riojournal.com/article/103675/
oa: '1'
publication: Research Ideas and Outcomes
publication_identifier:
issn:
- 2367-7163
publication_status: published
publisher: Pensoft Publishers
status: public
title: 'Bootstrapping the Open Science culture: The fellowship approach'
type: journal_article
user_id: '90339'
volume: 9
year: '2023'
...
---
_id: '35062'
citation:
ama: Meine S, Otto A, Süßmann J, eds. Musiklandschaften zwischen Rhein und Weser.
Pluralisierung und Verflechtung entlang des Hellwegs in der Frühen Neuzeit. Unter
Mitarbeit v. Markus Lauert. Vol 13. Königshausen & Neumann; 2023. doi:https://doi.org/10.36202/9783826077920
apa: Meine, S., Otto, A., & Süßmann, J. (Eds.). (2023). Musiklandschaften
zwischen Rhein und Weser. Pluralisierung und Verflechtung entlang des Hellwegs
in der Frühen Neuzeit. Unter Mitarbeit v. Markus Lauert (Vol. 13). Königshausen
& Neumann. https://doi.org/10.36202/9783826077920
bibtex: '@book{Meine_Otto_Süßmann_2023, place={Würzburg}, series={Musik – Kultur
– Geschichte}, title={Musiklandschaften zwischen Rhein und Weser. Pluralisierung
und Verflechtung entlang des Hellwegs in der Frühen Neuzeit. Unter Mitarbeit v.
Markus Lauert}, volume={13}, DOI={https://doi.org/10.36202/9783826077920},
publisher={Königshausen & Neumann}, year={2023}, collection={Musik – Kultur
– Geschichte} }'
chicago: 'Meine, Sabine, Arnold Otto, and Johannes Süßmann, eds. Musiklandschaften
zwischen Rhein und Weser. Pluralisierung und Verflechtung entlang des Hellwegs
in der Frühen Neuzeit. Unter Mitarbeit v. Markus Lauert. Vol. 13. Musik –
Kultur – Geschichte. Würzburg: Königshausen & Neumann, 2023. https://doi.org/10.36202/9783826077920.'
ieee: 'S. Meine, A. Otto, and J. Süßmann, Eds., Musiklandschaften zwischen Rhein
und Weser. Pluralisierung und Verflechtung entlang des Hellwegs in der Frühen
Neuzeit. Unter Mitarbeit v. Markus Lauert, vol. 13. Würzburg: Königshausen
& Neumann, 2023.'
mla: Meine, Sabine, et al., editors. Musiklandschaften zwischen Rhein und Weser.
Pluralisierung und Verflechtung entlang des Hellwegs in der Frühen Neuzeit. Unter
Mitarbeit v. Markus Lauert. Königshausen & Neumann, 2023, doi:https://doi.org/10.36202/9783826077920.
short: S. Meine, A. Otto, J. Süßmann, eds., Musiklandschaften zwischen Rhein und
Weser. Pluralisierung und Verflechtung entlang des Hellwegs in der Frühen Neuzeit.
Unter Mitarbeit v. Markus Lauert, Königshausen & Neumann, Würzburg, 2023.
date_created: 2022-12-28T21:08:19Z
date_updated: 2023-04-03T17:11:35Z
department:
- _id: '446'
doi: https://doi.org/10.36202/9783826077920
editor:
- first_name: Sabine
full_name: Meine, Sabine
last_name: Meine
- first_name: Arnold
full_name: Otto, Arnold
last_name: Otto
- first_name: Johannes
full_name: Süßmann, Johannes
id: '16220'
last_name: Süßmann
orcid: 0000-0001-5716-0863
intvolume: ' 13'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://verlag.koenigshausen-neumann.de/oaopen/81726
oa: '1'
place: Würzburg
publication_identifier:
isbn:
- 978-3-8260-7218-5
- 3-8260-7218-9
- 978-3-8260-7792-0
publication_status: published
publisher: Königshausen & Neumann
series_title: Musik – Kultur – Geschichte
status: public
title: Musiklandschaften zwischen Rhein und Weser. Pluralisierung und Verflechtung
entlang des Hellwegs in der Frühen Neuzeit. Unter Mitarbeit v. Markus Lauert
type: conference_editor
user_id: '16220'
volume: 13
year: '2023'
...
---
_id: '43245'
abstract:
- lang: eng
text: High-contrast slab waveguide Bragg gratings with 1D periodicity are investigated.
For specific oblique excitation by semi-guided waves at sufficiently high angles
of incidence, the idealized structures do not exhibit any radiative losses, such
that reflectance and transmittance for the single port mode add strictly up to
one. We consider a series of symmetric, fully and partly etched finite gratings,
for parameters found in integrated silicon photonics. These can act as spectral
filters with a reasonably flattop response. Apodization can lead to more box shaped
reflectance and transmittance spectra. Together with a narrowband Fabry–Perot
filter, these configurations are characterized by reflection bands, or transmittance
peaks, with widths that span three orders of magnitude.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Henna
full_name: Farheen, Henna
last_name: Farheen
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: Hammer M, Farheen H, Förstner J. How to suppress radiative losses in high-contrast
integrated Bragg gratings. Journal of the Optical Society of America B.
2023;40(4):862. doi:10.1364/josab.485725
apa: Hammer, M., Farheen, H., & Förstner, J. (2023). How to suppress radiative
losses in high-contrast integrated Bragg gratings. Journal of the Optical Society
of America B, 40(4), 862. https://doi.org/10.1364/josab.485725
bibtex: '@article{Hammer_Farheen_Förstner_2023, title={How to suppress radiative
losses in high-contrast integrated Bragg gratings}, volume={40}, DOI={10.1364/josab.485725},
number={4}, journal={Journal of the Optical Society of America B}, publisher={Optica
Publishing Group}, author={Hammer, Manfred and Farheen, Henna and Förstner, Jens},
year={2023}, pages={862} }'
chicago: 'Hammer, Manfred, Henna Farheen, and Jens Förstner. “How to Suppress Radiative
Losses in High-Contrast Integrated Bragg Gratings.” Journal of the Optical
Society of America B 40, no. 4 (2023): 862. https://doi.org/10.1364/josab.485725.'
ieee: 'M. Hammer, H. Farheen, and J. Förstner, “How to suppress radiative losses
in high-contrast integrated Bragg gratings,” Journal of the Optical Society
of America B, vol. 40, no. 4, p. 862, 2023, doi: 10.1364/josab.485725.'
mla: Hammer, Manfred, et al. “How to Suppress Radiative Losses in High-Contrast
Integrated Bragg Gratings.” Journal of the Optical Society of America B,
vol. 40, no. 4, Optica Publishing Group, 2023, p. 862, doi:10.1364/josab.485725.
short: M. Hammer, H. Farheen, J. Förstner, Journal of the Optical Society of America
B 40 (2023) 862.
date_created: 2023-03-31T13:04:43Z
date_updated: 2023-04-20T10:03:40Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: 10.1364/josab.485725
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-03-31T13:14:59Z
date_updated: 2023-03-31T13:14:59Z
file_id: '43247'
file_name: ogr-afterreview.pdf
file_size: 1982311
relation: main_file
file_date_updated: 2023-03-31T13:14:59Z
has_accepted_license: '1'
intvolume: ' 40'
issue: '4'
keyword:
- tet_topic_waveguide
language:
- iso: eng
oa: '1'
page: '862'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '167'
name: 'TRR 142 - B06: TRR 142 - Subproject B06'
publication: Journal of the Optical Society of America B
publication_identifier:
issn:
- 0740-3224
- 1520-8540
publication_status: published
publisher: Optica Publishing Group
status: public
title: How to suppress radiative losses in high-contrast integrated Bragg gratings
type: journal_article
user_id: '158'
volume: 40
year: '2023'
...
---
_id: '43132'
author:
- first_name: Torsten
full_name: Meier, Torsten
id: '344'
last_name: Meier
orcid: 0000-0001-8864-2072
- first_name: S.
full_name: Grisard, S.
last_name: Grisard
- first_name: A.V.
full_name: Trifonov, A.V.
last_name: Trifonov
- first_name: Hendrik
full_name: Rose, Hendrik
id: '55958'
last_name: Rose
orcid: 0000-0002-3079-5428
- first_name: R.
full_name: Reichhardt, R.
last_name: Reichhardt
- first_name: Matthias
full_name: Reichelt, Matthias
id: '138'
last_name: Reichelt
- first_name: C.
full_name: Schneider, C.
last_name: Schneider
- first_name: M.
full_name: Kamp, M.
last_name: Kamp
- first_name: S.
full_name: Höfling, S.
last_name: Höfling
- first_name: M.
full_name: Bayer, M.
last_name: Bayer
- first_name: I.A
full_name: Akimov, I.A
last_name: Akimov
citation:
ama: Meier T, Grisard S, Trifonov AV, et al. Temporal sorting of optical multi-wave-mixing
processes in semiconductor quantum dots. arxiv:230202480. Published online
2023.
apa: Meier, T., Grisard, S., Trifonov, A. V., Rose, H., Reichhardt, R., Reichelt,
M., Schneider, C., Kamp, M., Höfling, S., Bayer, M., & Akimov, I. A. (2023).
Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum
dots. In arxiv:2302.02480.
bibtex: '@article{Meier_Grisard_Trifonov_Rose_Reichhardt_Reichelt_Schneider_Kamp_Höfling_Bayer_et
al._2023, title={Temporal sorting of optical multi-wave-mixing processes in semiconductor
quantum dots}, journal={arxiv:2302.02480}, author={Meier, Torsten and Grisard,
S. and Trifonov, A.V. and Rose, Hendrik and Reichhardt, R. and Reichelt, Matthias
and Schneider, C. and Kamp, M. and Höfling, S. and Bayer, M. and et al.}, year={2023}
}'
chicago: Meier, Torsten, S. Grisard, A.V. Trifonov, Hendrik Rose, R. Reichhardt,
Matthias Reichelt, C. Schneider, et al. “Temporal Sorting of Optical Multi-Wave-Mixing
Processes in Semiconductor Quantum Dots.” Arxiv:2302.02480, 2023.
ieee: T. Meier et al., “Temporal sorting of optical multi-wave-mixing processes
in semiconductor quantum dots,” arxiv:2302.02480. 2023.
mla: Meier, Torsten, et al. “Temporal Sorting of Optical Multi-Wave-Mixing Processes
in Semiconductor Quantum Dots.” Arxiv:2302.02480, 2023.
short: T. Meier, S. Grisard, A.V. Trifonov, H. Rose, R. Reichhardt, M. Reichelt,
C. Schneider, M. Kamp, S. Höfling, M. Bayer, I.A. Akimov, Arxiv:2302.02480 (2023).
date_created: 2023-03-28T12:45:46Z
date_updated: 2023-04-20T14:45:05Z
department:
- _id: '293'
- _id: '35'
- _id: '15'
- _id: '170'
- _id: '230'
- _id: '429'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.48550/arXiv.2302.02480
oa: '1'
project:
- _id: '53'
name: 'TRR 142: TRR 142'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '59'
name: 'TRR 142 - A02: TRR 142 - Subproject A02'
- _id: '165'
name: 'TRR 142 - A10: TRR 142 - Subproject A10'
publication: arxiv:2302.02480
status: public
title: Temporal sorting of optical multi-wave-mixing processes in semiconductor quantum
dots
type: preprint
user_id: '16199'
year: '2023'
...
---
_id: '44097'
abstract:
- lang: eng
text: We present strong enhancement of third harmonic generation in an amorphous
silicon metasurface consisting of elliptical nano resonators. We show that this
enhancement originates from a new type of multi-mode Fano mechanism. These ‘Super-Fano’
resonances are investigated numerically in great detail using full-wave simulations.
The theoretically predicted behavior of the metasurface is experimentally verified
by linear and nonlinear transmission spectroscopy. Moreover, quantitative nonlinear
measurements are performed, in which an absolute conversion efficiency as high
as ηmax ≈ 2.8 × 10−7 a peak power intensity of 1.2 GW cm−2 is found. Compared
to an unpatterned silicon film of the same thickness amplification factors of
up to ~900 are demonstrated. Our results pave the way to exploiting a strong Fano-type
multi-mode coupling in metasurfaces for high THG in potential applications.
article_type: original
author:
- first_name: David
full_name: Hähnel, David
last_name: Hähnel
- first_name: Christian
full_name: Golla, Christian
last_name: Golla
- first_name: Maximilian
full_name: Albert, Maximilian
last_name: Albert
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Viktor
full_name: Myroshnychenko, Viktor
id: '46371'
last_name: Myroshnychenko
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
- first_name: Cedrik
full_name: Meier, Cedrik
id: '20798'
last_name: Meier
orcid: https://orcid.org/0000-0002-3787-3572
citation:
ama: 'Hähnel D, Golla C, Albert M, et al. A multi-mode super-fano mechanism for
enhanced third harmonic generation in silicon metasurfaces. Light: Science
& Applications. 2023;12(1):97. doi:https://doi.org/10.1038/s41377-023-01134-1'
apa: 'Hähnel, D., Golla, C., Albert, M., Zentgraf, T., Myroshnychenko, V., Förstner,
J., & Meier, C. (2023). A multi-mode super-fano mechanism for enhanced third
harmonic generation in silicon metasurfaces. Light: Science & Applications,
12(1), 97. https://doi.org/10.1038/s41377-023-01134-1'
bibtex: '@article{Hähnel_Golla_Albert_Zentgraf_Myroshnychenko_Förstner_Meier_2023,
title={A multi-mode super-fano mechanism for enhanced third harmonic generation
in silicon metasurfaces}, volume={12}, DOI={https://doi.org/10.1038/s41377-023-01134-1},
number={1}, journal={Light: Science & Applications}, publisher={Springer Nature},
author={Hähnel, David and Golla, Christian and Albert, Maximilian and Zentgraf,
Thomas and Myroshnychenko, Viktor and Förstner, Jens and Meier, Cedrik}, year={2023},
pages={97} }'
chicago: 'Hähnel, David, Christian Golla, Maximilian Albert, Thomas Zentgraf, Viktor
Myroshnychenko, Jens Förstner, and Cedrik Meier. “A Multi-Mode Super-Fano Mechanism
for Enhanced Third Harmonic Generation in Silicon Metasurfaces.” Light: Science
& Applications 12, no. 1 (2023): 97. https://doi.org/10.1038/s41377-023-01134-1.'
ieee: 'D. Hähnel et al., “A multi-mode super-fano mechanism for enhanced
third harmonic generation in silicon metasurfaces,” Light: Science & Applications,
vol. 12, no. 1, p. 97, 2023, doi: https://doi.org/10.1038/s41377-023-01134-1.'
mla: 'Hähnel, David, et al. “A Multi-Mode Super-Fano Mechanism for Enhanced Third
Harmonic Generation in Silicon Metasurfaces.” Light: Science & Applications,
vol. 12, no. 1, Springer Nature, 2023, p. 97, doi:https://doi.org/10.1038/s41377-023-01134-1.'
short: 'D. Hähnel, C. Golla, M. Albert, T. Zentgraf, V. Myroshnychenko, J. Förstner,
C. Meier, Light: Science & Applications 12 (2023) 97.'
date_created: 2023-04-21T09:45:07Z
date_updated: 2023-04-21T10:04:05Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
doi: https://doi.org/10.1038/s41377-023-01134-1
file:
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-04-21T10:00:27Z
date_updated: 2023-04-21T10:00:27Z
file_id: '44098'
file_name: 2023-04 Hähnel - LSA - Multimode Fano THG.pdf
file_size: 2088874
relation: main_file
- access_level: open_access
content_type: application/pdf
creator: fossie
date_created: 2023-04-21T10:03:30Z
date_updated: 2023-04-21T10:03:30Z
file_id: '44099'
file_name: 2023-04 Hähnel - LSA - Multimode Fano THG (supplementary information).pdf
file_size: 986743
relation: supplementary_material
file_date_updated: 2023-04-21T10:03:30Z
has_accepted_license: '1'
intvolume: ' 12'
issue: '1'
keyword:
- tet_topic_meta
language:
- iso: eng
oa: '1'
page: '97'
publication: 'Light: Science & Applications'
publication_identifier:
issn:
- 2047-7538
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
status: public
title: A multi-mode super-fano mechanism for enhanced third harmonic generation in
silicon metasurfaces
type: journal_article
user_id: '158'
volume: 12
year: '2023'
...
---
_id: '44083'
author:
- first_name: Anna Brigitte
full_name: Bauer, Anna Brigitte
id: '24755'
last_name: Bauer
orcid: 0000-0002-1742-3099
citation:
ama: Bauer AB. Experimentelle Kompetenz Physikstudierender. Entwicklung und erste
Erprobung eines performanzorientierten Kompetenzstrukturmodells unter Nutzung
qualitativer Methoden. Vol 352. Logos Verlag Berlin GmbH; 2023. doi:10.30819/5625
apa: Bauer, A. B. (2023). Experimentelle Kompetenz Physikstudierender. Entwicklung
und erste Erprobung eines performanzorientierten Kompetenzstrukturmodells unter
Nutzung qualitativer Methoden (Vol. 352). Logos Verlag Berlin GmbH. https://doi.org/10.30819/5625
bibtex: '@book{Bauer_2023, place={Berlin}, series={Studien zum Physik- und Chemielernen},
title={Experimentelle Kompetenz Physikstudierender. Entwicklung und erste Erprobung
eines performanzorientierten Kompetenzstrukturmodells unter Nutzung qualitativer
Methoden}, volume={352}, DOI={10.30819/5625},
publisher={Logos Verlag Berlin GmbH}, author={Bauer, Anna Brigitte}, year={2023},
collection={Studien zum Physik- und Chemielernen} }'
chicago: 'Bauer, Anna Brigitte. Experimentelle Kompetenz Physikstudierender.
Entwicklung und erste Erprobung eines performanzorientierten Kompetenzstrukturmodells
unter Nutzung qualitativer Methoden. Vol. 352. Studien zum Physik- und Chemielernen.
Berlin: Logos Verlag Berlin GmbH, 2023. https://doi.org/10.30819/5625.'
ieee: 'A. B. Bauer, Experimentelle Kompetenz Physikstudierender. Entwicklung
und erste Erprobung eines performanzorientierten Kompetenzstrukturmodells unter
Nutzung qualitativer Methoden, vol. 352. Berlin: Logos Verlag Berlin GmbH,
2023.'
mla: Bauer, Anna Brigitte. Experimentelle Kompetenz Physikstudierender. Entwicklung
und erste Erprobung eines performanzorientierten Kompetenzstrukturmodells unter
Nutzung qualitativer Methoden. Logos Verlag Berlin GmbH, 2023, doi:10.30819/5625.
short: A.B. Bauer, Experimentelle Kompetenz Physikstudierender. Entwicklung und
erste Erprobung eines performanzorientierten Kompetenzstrukturmodells unter Nutzung
qualitativer Methoden, Logos Verlag Berlin GmbH, Berlin, 2023.
date_created: 2023-04-20T12:47:01Z
date_updated: 2023-04-26T06:41:56Z
department:
- _id: '299'
- _id: '576'
- _id: '651'
doi: 10.30819/5625
intvolume: ' 352'
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.logos-verlag.de/cgi-bin/engbuchmid?isbn=5625&lng=deu&id=%3D
oa: '1'
place: Berlin
publication_identifier:
isbn:
- 978-3-8325-5625-9
publication_status: published
publisher: Logos Verlag Berlin GmbH
series_title: Studien zum Physik- und Chemielernen
status: public
title: Experimentelle Kompetenz Physikstudierender. Entwicklung und erste Erprobung
eines performanzorientierten Kompetenzstrukturmodells unter Nutzung qualitativer
Methoden
type: book
user_id: '24755'
volume: 352
year: '2023'
...
---
_id: '43374'
author:
- first_name: Patrick
full_name: Schürmann, Patrick
last_name: Schürmann
citation:
ama: Schürmann P. A Formal Comparison of Advanced Digital Signature Primitives.;
2023.
apa: Schürmann, P. (2023). A Formal Comparison of Advanced Digital Signature
Primitives.
bibtex: '@book{Schürmann_2023, title={ A Formal Comparison of Advanced Digital Signature
Primitives}, author={Schürmann, Patrick}, year={2023} }'
chicago: Schürmann, Patrick. A Formal Comparison of Advanced Digital Signature
Primitives, 2023.
ieee: P. Schürmann, A Formal Comparison of Advanced Digital Signature Primitives.
2023.
mla: Schürmann, Patrick. A Formal Comparison of Advanced Digital Signature Primitives.
2023.
short: P. Schürmann, A Formal Comparison of Advanced Digital Signature Primitives,
2023.
date_created: 2023-04-03T14:07:32Z
date_updated: 2023-04-25T22:43:21Z
ddc:
- '000'
department:
- _id: '64'
file:
- access_level: open_access
content_type: application/pdf
creator: bhenrik
date_created: 2023-04-25T10:49:36Z
date_updated: 2023-04-25T10:49:36Z
file_id: '44177'
file_name: masters_thesis_schuermann.pdf
file_size: 1367369
relation: main_file
title: ' A Formal Comparison of Advanced Digital Signature Primitives'
file_date_updated: 2023-04-25T10:49:36Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
project:
- _id: '1'
name: 'SFB 901: SFB 901'
- _id: '4'
name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '13'
name: 'SFB 901 - C1: SFB 901 - Subproject C1'
status: public
supervisor:
- first_name: Johannes
full_name: Blömer, Johannes
id: '23'
last_name: Blömer
title: ' A Formal Comparison of Advanced Digital Signature Primitives'
type: mastersthesis
user_id: '41047'
year: '2023'
...
---
_id: '42515'
abstract:
- lang: eng
text: Microcellular wood fiber reinforced polymers offer the possibility
to reduce the use of fossil raw materials. In particular, thick-walled structures
with thicknesses greater than 6 mm offer a high potential for weight savings.
This study investigates the cell structures and mechanical properties of injection-molded
test specimens. The influence of different thicknesses (6–10 mm) along with different
chemical blowing agents (endothermic, exothermic) with varying dosages (0–2 wt%)
is analyzed. The investigations reveal that exothermic chemical blowing agents
form finer cells consistently to thin-walled structures than endothermic ones.
Higher foaming agent content leads to higher pore fractions, with many small cells
coalescing into a large open-pore cell network. The mechanical properties depend
mainly on the pore content of the sample. The specific tensile properties deteriorate
with the use of chemical blowing agents (CFA), whereas the sandwich structure
produced with compact edge layers has a positive influence on the specific flexural
properties.
author:
- first_name: Elmar
full_name: Moritzer, Elmar
id: '20531'
last_name: Moritzer
- first_name: Felix
full_name: Flachmann, Felix
id: '38212'
last_name: Flachmann
orcid: 0000-0002-7651-7028
citation:
ama: Moritzer E, Flachmann F. Morphological and mechanical properties of foamed
thick-walled Wood-Plastic-Composite structures. Journal of Cellular Plastics.
2023;59(3):187-199. doi:10.1177/0021955x231161175
apa: Moritzer, E., & Flachmann, F. (2023). Morphological and mechanical properties
of foamed thick-walled Wood-Plastic-Composite structures. Journal of Cellular
Plastics, 59(3), 187–199. https://doi.org/10.1177/0021955x231161175
bibtex: '@article{Moritzer_Flachmann_2023, title={Morphological and mechanical properties
of foamed thick-walled Wood-Plastic-Composite structures}, volume={59}, DOI={10.1177/0021955x231161175},
number={3}, journal={Journal of Cellular Plastics}, publisher={SAGE Publications},
author={Moritzer, Elmar and Flachmann, Felix}, year={2023}, pages={187–199} }'
chicago: 'Moritzer, Elmar, and Felix Flachmann. “Morphological and Mechanical Properties
of Foamed Thick-Walled Wood-Plastic-Composite Structures.” Journal of Cellular
Plastics 59, no. 3 (2023): 187–99. https://doi.org/10.1177/0021955x231161175.'
ieee: 'E. Moritzer and F. Flachmann, “Morphological and mechanical properties of
foamed thick-walled Wood-Plastic-Composite structures,” Journal of Cellular
Plastics, vol. 59, no. 3, pp. 187–199, 2023, doi: 10.1177/0021955x231161175.'
mla: Moritzer, Elmar, and Felix Flachmann. “Morphological and Mechanical Properties
of Foamed Thick-Walled Wood-Plastic-Composite Structures.” Journal of Cellular
Plastics, vol. 59, no. 3, SAGE Publications, 2023, pp. 187–99, doi:10.1177/0021955x231161175.
short: E. Moritzer, F. Flachmann, Journal of Cellular Plastics 59 (2023) 187–199.
date_created: 2023-02-27T07:11:52Z
date_updated: 2023-04-26T13:40:19Z
department:
- _id: '321'
- _id: '9'
- _id: '367'
- _id: '147'
doi: 10.1177/0021955x231161175
intvolume: ' 59'
issue: '3'
keyword:
- Materials Chemistry
- Polymers and Plastics
- General Chemistry
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: 187-199
publication: Journal of Cellular Plastics
publication_identifier:
issn:
- 0021-955X
- 1530-7999
publication_status: published
publisher: SAGE Publications
quality_controlled: '1'
status: public
title: Morphological and mechanical properties of foamed thick-walled Wood-Plastic-Composite
structures
type: journal_article
user_id: '38212'
volume: 59
year: '2023'
...
---
_id: '42179'
author:
- first_name: Sascha Christian
full_name: Burmeister, Sascha Christian
id: '32685'
last_name: Burmeister
- first_name: Guido
full_name: Schryen, Guido
id: '72850'
last_name: Schryen
citation:
ama: 'Burmeister SC, Schryen G. Distribution Network Optimization: Predicting computation
times to design scenario analysis for network operators. Energy Systems.
Published online 2023. doi:10.1007/s12667-023-00572-5'
apa: 'Burmeister, S. C., & Schryen, G. (2023). Distribution Network Optimization:
Predicting computation times to design scenario analysis for network operators.
Energy Systems. https://doi.org/10.1007/s12667-023-00572-5'
bibtex: '@article{Burmeister_Schryen_2023, title={Distribution Network Optimization:
Predicting computation times to design scenario analysis for network operators},
DOI={10.1007/s12667-023-00572-5},
journal={Energy Systems}, publisher={Springer}, author={Burmeister, Sascha Christian
and Schryen, Guido}, year={2023} }'
chicago: 'Burmeister, Sascha Christian, and Guido Schryen. “Distribution Network
Optimization: Predicting Computation Times to Design Scenario Analysis for Network
Operators.” Energy Systems, 2023. https://doi.org/10.1007/s12667-023-00572-5.'
ieee: 'S. C. Burmeister and G. Schryen, “Distribution Network Optimization: Predicting
computation times to design scenario analysis for network operators,” Energy
Systems, 2023, doi: 10.1007/s12667-023-00572-5.'
mla: 'Burmeister, Sascha Christian, and Guido Schryen. “Distribution Network Optimization:
Predicting Computation Times to Design Scenario Analysis for Network Operators.”
Energy Systems, Springer, 2023, doi:10.1007/s12667-023-00572-5.'
short: S.C. Burmeister, G. Schryen, Energy Systems (2023).
date_created: 2023-02-17T09:44:49Z
date_updated: 2023-04-26T14:38:43Z
ddc:
- '000'
department:
- _id: '277'
doi: 10.1007/s12667-023-00572-5
file:
- access_level: open_access
content_type: application/pdf
creator: hsiemes
date_created: 2023-03-14T13:44:07Z
date_updated: 2023-03-14T13:44:07Z
file_id: '43022'
file_name: s12667-023-00572-5.pdf
file_size: 1521348
relation: main_file
file_date_updated: 2023-03-14T13:44:07Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Energy Systems
publisher: Springer
status: public
title: 'Distribution Network Optimization: Predicting computation times to design
scenario analysis for network operators'
type: journal_article
user_id: '61579'
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'
...