---
_id: '62181'
abstract:
- lang: eng
text: This research investigates how Artificial Intelligence (AI) can be systematically
integrated into existing business processes by combining suitable competencies
with graphical AI workflow modelling. While AI offers a high potential for automation
and increased efficiency, its implementation often fails due to a lack of interdisciplinary
competencies that bridge the gap between domain expertise and IT know-how. Low-code
platforms and visual modelling tools are increasingly recognised as enablers,
empowering non-programmers to intuitively create graphical AI- based workflows.
Nevertheless, specific competencies are required to realise the full potential
of AI, the domain specific knowledge and align technical understanding with AI
capabilities. The paper reviews the state of the art in AI-driven business process
automation and competencies for visual low-code approaches. It then presents a
practical solution to identify and systematise essential competence areas. Based
on this, a practical competence model is developed to support the design of user-friendly,
AI-enabled workflows. This is tested in a practical application context — emergency
management — where it supports critical decision-making processes and is validated
through expert feedback. The study concludes by offering actionable recommendations
to help organisations foster the necessary competencies and methods for competently
integrating AI into their digital processes.
author:
- first_name: Iris
full_name: Gräßler, Iris
id: '47565'
last_name: Gräßler
orcid: 0000-0001-5765-971X
- first_name: Deniz
full_name: Özcan, Deniz
id: '58595'
last_name: Özcan
citation:
ama: 'Gräßler I, Özcan D. Graphical AI workflow modelling: Identifying relevant
competencies in AI-based automation of business processes. In: AHFE International.
Vol 198. AHFE International; 2025. doi:10.54941/ahfe1006785'
apa: 'Gräßler, I., & Özcan, D. (2025). Graphical AI workflow modelling: Identifying
relevant competencies in AI-based automation of business processes. AHFE International,
198. https://doi.org/10.54941/ahfe1006785'
bibtex: '@inproceedings{Gräßler_Özcan_2025, title={Graphical AI workflow modelling:
Identifying relevant competencies in AI-based automation of business processes},
volume={198}, DOI={10.54941/ahfe1006785},
booktitle={AHFE International}, publisher={AHFE International}, author={Gräßler,
Iris and Özcan, Deniz}, year={2025} }'
chicago: 'Gräßler, Iris, and Deniz Özcan. “Graphical AI Workflow Modelling: Identifying
Relevant Competencies in AI-Based Automation of Business Processes.” In AHFE
International, Vol. 198. AHFE International, 2025. https://doi.org/10.54941/ahfe1006785.'
ieee: 'I. Gräßler and D. Özcan, “Graphical AI workflow modelling: Identifying relevant
competencies in AI-based automation of business processes,” in AHFE International,
Split, 2025, vol. 198, doi: 10.54941/ahfe1006785.'
mla: 'Gräßler, Iris, and Deniz Özcan. “Graphical AI Workflow Modelling: Identifying
Relevant Competencies in AI-Based Automation of Business Processes.” AHFE International,
vol. 198, AHFE International, 2025, doi:10.54941/ahfe1006785.'
short: 'I. Gräßler, D. Özcan, in: AHFE International, AHFE International, 2025.'
conference:
end_date: 2025-09-24
location: Split
name: '7th International Conference on Human Systems Engineering and Design: Future
Trends and Applications (IHSED 2025)'
start_date: 2025-09-22
date_created: 2025-11-13T16:37:59Z
date_updated: 2026-10-01T12:25:18Z
department:
- _id: '43'
- _id: '9'
- _id: '26'
- _id: '152'
doi: 10.54941/ahfe1006785
intvolume: ' 198'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: AHFE International
publication_identifier:
issn:
- 2771-0718
publication_status: published
publisher: AHFE International
quality_controlled: '1'
status: public
title: 'Graphical AI workflow modelling: Identifying relevant competencies in AI-based
automation of business processes'
type: conference
user_id: '58595'
volume: 198
year: '2025'
...
---
_id: '62182'
abstract:
- lang: eng
text: 'Die vorliegende Zukunftsstudie „Automation 2035“ gibt einen Ausblick auf
die Entwicklung der Automatisierungstechnik in den nächsten 10 Jahren. Neben der
Beschreibung von Trends wie Kreislaufwirtschaft, Automatisierung der Märkte, Biologisierung,
autonome Systeme und Robotik sowie IT-Sicherheit wird die zu erwartende Veränderung
in der Bildung beschrieben. Dazu verwenden wir Methoden der Zukunftsforschung
und arbeiten mit der Szenario-Technik, um Zukunftsperspektiven der Automation
aufzuzeigen. Personas werden eingesetzt, um die zukünftigen Entwicklungen plastisch
aus den Augen der Personen im Jahr 2025 und in der Zukunft im Jahr 2035 zu beschreiben.
Schlüsselthemen und Trends: ... ... Inhalt Executive summary 1 1 Einführung 3
2 Zukunftsfelder für die Automatisierungstechnik 2035 4 2.1 Kreislaufwirtschaft
4 2.2 Automatisierung der Märkte 7 2.3 Biologisierung 8 2.4 Autonome Systeme und
Robotik 10 2.5 Security 12 2.6 Veränderung der Ausbildung 13 3 Szenario der Automation
2035 16 4 Personas 18 4.1 Unternehmer 18 4.2 Ingenieurin 19 4.3 Schüler 20 5 Thesen
und Ausblick 22 Methodik 24 Autorenteam 25 Schrifttum 26... '
alternative_title:
- VDI-Studie
author:
- first_name: Iris
full_name: Gräßler, Iris
id: '47565'
last_name: Gräßler
orcid: 0000-0001-5765-971X
- first_name: Deniz
full_name: Özcan, Deniz
id: '58595'
last_name: Özcan
- first_name: Alena Marie
full_name: Tusek, Alena Marie
id: '59370'
last_name: Tusek
- first_name: Attila
full_name: Bilgic, Attila
last_name: Bilgic
- first_name: Christian
full_name: Lange, Christian
last_name: Lange
- first_name: Christian
full_name: Stich, Christian
last_name: Stich
- first_name: Christine
full_name: Maul, Christine
last_name: Maul
- first_name: Michael
full_name: Heizmann, Michael
last_name: Heizmann
- first_name: Michael
full_name: Weyrich, Michael
last_name: Weyrich
- first_name: Sascha
full_name: Dessel,, Sascha
last_name: Dessel,
- first_name: Torben
full_name: Miny, Torben
last_name: Miny
- first_name: Ulrich
full_name: Jumar, Ulrich
last_name: Jumar
citation:
ama: Gräßler I, Özcan D, Tusek AM, et al. Automation 2035. VDI Verlag; 2025.
doi:10.51202/9783911670180
apa: Gräßler, I., Özcan, D., Tusek, A. M., Bilgic, A., Lange, C., Stich, C., Maul,
C., Heizmann, M., Weyrich, M., Dessel, S., Miny, T., & Jumar, U. (2025). Automation
2035. VDI Verlag. https://doi.org/10.51202/9783911670180
bibtex: '@book{Gräßler_Özcan_Tusek_Bilgic_Lange_Stich_Maul_Heizmann_Weyrich_Dessel,_et
al._2025, title={Automation 2035}, DOI={10.51202/9783911670180},
publisher={VDI Verlag}, author={Gräßler, Iris and Özcan, Deniz and Tusek, Alena
Marie and Bilgic, Attila and Lange, Christian and Stich, Christian and Maul, Christine
and Heizmann, Michael and Weyrich, Michael and Dessel, Sascha and et al.}, year={2025}
}'
chicago: Gräßler, Iris, Deniz Özcan, Alena Marie Tusek, Attila Bilgic, Christian
Lange, Christian Stich, Christine Maul, et al. Automation 2035. VDI Verlag,
2025. https://doi.org/10.51202/9783911670180.
ieee: I. Gräßler et al., Automation 2035. VDI Verlag, 2025.
mla: Gräßler, Iris, et al. Automation 2035. VDI Verlag, 2025, doi:10.51202/9783911670180.
short: I. Gräßler, D. Özcan, A.M. Tusek, A. Bilgic, C. Lange, C. Stich, C. Maul,
M. Heizmann, M. Weyrich, S. Dessel, T. Miny, U. Jumar, Automation 2035, VDI Verlag,
2025.
date_created: 2025-11-13T16:43:05Z
date_updated: 2026-10-01T12:25:27Z
department:
- _id: '43'
- _id: '9'
- _id: '26'
- _id: '152'
doi: 10.51202/9783911670180
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication_identifier:
isbn:
- '9783911670180'
publication_status: published
publisher: VDI Verlag
quality_controlled: '1'
status: public
title: Automation 2035
type: book
user_id: '58595'
year: '2025'
...
---
_id: '59335'
abstract:
- lang: eng
text: Technological advancements and evolving value orientations reshape future
value creation and pose new requirements for service innovation. While a variety
of disciplines are developing new approaches to drive service innovation, this
is primarily done in isolation and generates only fragmented solutions. Sociological
theory has proposed “boundary objects” as an effective umbrella for communication
and cooperation among communities. Therefore, we introduce continuous value shaping
(CVS) as a boundary object describing service innovation approaches along five
principles. We reflect on this concept through the different disciplinary lenses
of researchers in service marketing, information systems, service engineering,
sociology of work, and innovation management. These perspectives highlight how
the CVS principles already connect to discourses within the individual disciplines.
However, the CVS concept will not only provide an umbrella to embrace existing
activities in different academic disciplines. It also assists to identify research
themes that will benefit from uniting the power of these disciplines, and it can
serve as an integrating framework to conceptualize complex service innovation
approaches. Thus, the CVS concept should guide both researchers and practitioners
to develop and implement novel innovation and transformation efforts—in and across
organizations.
article_number: '27'
article_type: original
author:
- first_name: Tilo
full_name: Böhmann, Tilo
last_name: Böhmann
- first_name: Angela
full_name: Roth, Angela
last_name: Roth
- first_name: Gerhard
full_name: Satzger, Gerhard
last_name: Satzger
- first_name: Carina
full_name: Benz, Carina
last_name: Benz
- first_name: Daniel
full_name: Beverungen, Daniel
last_name: Beverungen
- first_name: Andreas
full_name: Boes, Andreas
last_name: Boes
- first_name: Christoph
full_name: Breidbach, Christoph
last_name: Breidbach
- first_name: Martin
full_name: Gersch, Martin
last_name: Gersch
- first_name: Gerhard
full_name: Gudergan, Gerhard
last_name: Gudergan
- first_name: Jens
full_name: Hogreve, Jens
last_name: Hogreve
- first_name: Christian
full_name: Kurtz, Christian
last_name: Kurtz
- first_name: Barbara
full_name: Langes, Barbara
last_name: Langes
- first_name: Jan Marco
full_name: Leimeister, Jan Marco
last_name: Leimeister
- first_name: Tom
full_name: Lewandowski, Tom
last_name: Lewandowski
- first_name: Thomas
full_name: Meiren, Thomas
last_name: Meiren
- first_name: Rainer
full_name: Nägele, Rainer
last_name: Nägele
- first_name: Stefanie
full_name: Paluch, Stefanie
last_name: Paluch
- first_name: Christoph
full_name: Peters, Christoph
last_name: Peters
- first_name: Jens
full_name: Poeppelbuss, Jens
last_name: Poeppelbuss
- first_name: Susanne
full_name: Robra-Bissantz, Susanne
last_name: Robra-Bissantz
- first_name: Carsten
full_name: Schultz, Carsten
last_name: Schultz
- first_name: Jan H.
full_name: Schumann, Jan H.
last_name: Schumann
- first_name: Jochen
full_name: Wirtz, Jochen
last_name: Wirtz
- first_name: Nancy V.
full_name: Wünderlich, Nancy V.
last_name: Wünderlich
citation:
ama: 'Böhmann T, Roth A, Satzger G, et al. Continuous value shaping: A boundary
concept for innovating service innovation approaches. Electronic Markets.
2025;35(1). doi:10.1007/s12525-025-00771-1'
apa: 'Böhmann, T., Roth, A., Satzger, G., Benz, C., Beverungen, D., Boes, A., Breidbach,
C., Gersch, M., Gudergan, G., Hogreve, J., Kurtz, C., Langes, B., Leimeister,
J. M., Lewandowski, T., Meiren, T., Nägele, R., Paluch, S., Peters, C., Poeppelbuss,
J., … Wünderlich, N. V. (2025). Continuous value shaping: A boundary concept for
innovating service innovation approaches. Electronic Markets, 35(1),
Article 27. https://doi.org/10.1007/s12525-025-00771-1'
bibtex: '@article{Böhmann_Roth_Satzger_Benz_Beverungen_Boes_Breidbach_Gersch_Gudergan_Hogreve_et
al._2025, title={Continuous value shaping: A boundary concept for innovating service
innovation approaches}, volume={35}, DOI={10.1007/s12525-025-00771-1},
number={127}, journal={Electronic Markets}, publisher={Springer Science and Business
Media LLC}, author={Böhmann, Tilo and Roth, Angela and Satzger, Gerhard and Benz,
Carina and Beverungen, Daniel and Boes, Andreas and Breidbach, Christoph and Gersch,
Martin and Gudergan, Gerhard and Hogreve, Jens and et al.}, year={2025} }'
chicago: 'Böhmann, Tilo, Angela Roth, Gerhard Satzger, Carina Benz, Daniel Beverungen,
Andreas Boes, Christoph Breidbach, et al. “Continuous Value Shaping: A Boundary
Concept for Innovating Service Innovation Approaches.” Electronic Markets
35, no. 1 (2025). https://doi.org/10.1007/s12525-025-00771-1.'
ieee: 'T. Böhmann et al., “Continuous value shaping: A boundary concept for
innovating service innovation approaches,” Electronic Markets, vol. 35,
no. 1, Art. no. 27, 2025, doi: 10.1007/s12525-025-00771-1.'
mla: 'Böhmann, Tilo, et al. “Continuous Value Shaping: A Boundary Concept for Innovating
Service Innovation Approaches.” Electronic Markets, vol. 35, no. 1, 27,
Springer Science and Business Media LLC, 2025, doi:10.1007/s12525-025-00771-1.'
short: T. Böhmann, A. Roth, G. Satzger, C. Benz, D. Beverungen, A. Boes, C. Breidbach,
M. Gersch, G. Gudergan, J. Hogreve, C. Kurtz, B. Langes, J.M. Leimeister, T. Lewandowski,
T. Meiren, R. Nägele, S. Paluch, C. Peters, J. Poeppelbuss, S. Robra-Bissantz,
C. Schultz, J.H. Schumann, J. Wirtz, N.V. Wünderlich, Electronic Markets 35 (2025).
date_created: 2025-04-04T06:10:26Z
date_updated: 2026-10-08T10:56:12Z
ddc:
- '380'
department:
- _id: '195'
doi: 10.1007/s12525-025-00771-1
external_id:
unknown:
- https://link.springer.com/article/10.1007/s12525-025-00771-1
file:
- access_level: closed
content_type: application/pdf
creator: dabe
date_created: 2025-04-04T06:19:38Z
date_updated: 2025-04-04T06:19:38Z
file_id: '59336'
file_name: Continuous Value Shaping - EM.pdf
file_size: 920032
relation: main_file
success: 1
file_date_updated: 2025-04-04T06:19:38Z
has_accepted_license: '1'
intvolume: ' 35'
issue: '1'
jel:
- M10
keyword:
- Continuous value shaping (CVS)
- Service research
- Service innovation
- Digitalization
- Sustainability
- Interdisciplinary research
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/article/10.1007/s12525-025-00771-1
oa: '1'
project:
- _id: '1250'
name: 'SHAPE : Gestaltung von Dienstleistungsentwicklungsprozessen und lnnovationspartnerschaften
mit Unternehmen'
publication: Electronic Markets
publication_identifier:
issn:
- 1019-6781
- 1422-8890
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: 'Continuous value shaping: A boundary concept for innovating service innovation
approaches'
type: journal_article
user_id: '59677'
volume: 35
year: '2025'
...
---
_id: '35659'
author:
- first_name: Yvonne
full_name: Webersen, Yvonne
id: '9605'
last_name: Webersen
orcid: 0009-0009-6583-8692
- first_name: Josef
full_name: Riese, Josef
id: '429'
last_name: Riese
orcid: 0000-0003-2927-2619
citation:
ama: 'Webersen Y, Riese J. „Die Erde ist eine Scheibe und wir waren nie auf dem
Mond!“? Ein Seminar zur Nature of Science und Techniken der Wissenschaftsleugnung.
In: van Vorst H, ed. Entdecken, lehren und forschen im Schülerlabor. Gesellschaft
für Didaktik der Chemie und Physik. Jahrestagung in Bochum 2024. ; 2025:764-767.'
apa: Webersen, Y., & Riese, J. (2025). „Die Erde ist eine Scheibe und wir waren
nie auf dem Mond!“? Ein Seminar zur Nature of Science und Techniken der Wissenschaftsleugnung.
In H. van Vorst (Ed.), Entdecken, lehren und forschen im Schülerlabor. Gesellschaft
für Didaktik der Chemie und Physik. Jahrestagung in Bochum 2024 (pp. 764–767).
bibtex: '@inproceedings{Webersen_Riese_2025, title={„Die Erde ist eine Scheibe und
wir waren nie auf dem Mond!“? Ein Seminar zur Nature of Science und Techniken
der Wissenschaftsleugnung}, booktitle={Entdecken, lehren und forschen im Schülerlabor.
Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Bochum 2024},
author={Webersen, Yvonne and Riese, Josef}, editor={van Vorst, Helena}, year={2025},
pages={764–767} }'
chicago: Webersen, Yvonne, and Josef Riese. “„Die Erde ist eine Scheibe und wir
waren nie auf dem Mond!“? Ein Seminar zur Nature of Science und Techniken der
Wissenschaftsleugnung.” In Entdecken, lehren und forschen im Schülerlabor.
Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung in Bochum 2024,
edited by Helena van Vorst, 764–67, 2025.
ieee: Y. Webersen and J. Riese, “„Die Erde ist eine Scheibe und wir waren nie auf
dem Mond!“? Ein Seminar zur Nature of Science und Techniken der Wissenschaftsleugnung,”
in Entdecken, lehren und forschen im Schülerlabor. Gesellschaft für Didaktik
der Chemie und Physik. Jahrestagung in Bochum 2024, 2025, pp. 764–767.
mla: Webersen, Yvonne, and Josef Riese. “„Die Erde ist eine Scheibe und wir waren
nie auf dem Mond!“? Ein Seminar zur Nature of Science und Techniken der Wissenschaftsleugnung.”
Entdecken, lehren und forschen im Schülerlabor. Gesellschaft für Didaktik der
Chemie und Physik. Jahrestagung in Bochum 2024, edited by Helena van Vorst,
2025, pp. 764–67.
short: 'Y. Webersen, J. Riese, in: H. van Vorst (Ed.), Entdecken, lehren und forschen
im Schülerlabor. Gesellschaft für Didaktik der Chemie und Physik. Jahrestagung
in Bochum 2024, 2025, pp. 764–767.'
date_created: 2023-01-10T08:31:39Z
date_updated: 2026-10-14T09:02:53Z
ddc:
- '370'
department:
- _id: '299'
editor:
- first_name: Helena
full_name: van Vorst, Helena
last_name: van Vorst
file:
- access_level: open_access
content_type: application/pdf
creator: ygramzow
date_created: 2025-02-17T11:08:45Z
date_updated: 2025-05-15T07:00:40Z
file_id: '58659'
file_name: P102_Webersen.pdf
file_size: 219702
relation: main_file
file_date_updated: 2025-05-15T07:00:40Z
has_accepted_license: '1'
language:
- iso: ger
oa: '1'
page: 764-767
publication: Entdecken, lehren und forschen im Schülerlabor. Gesellschaft für Didaktik
der Chemie und Physik. Jahrestagung in Bochum 2024
status: public
title: „Die Erde ist eine Scheibe und wir waren nie auf dem Mond!“? Ein Seminar zur
Nature of Science und Techniken der Wissenschaftsleugnung
type: conference
user_id: '9605'
year: '2025'
...
---
_id: '62291'
abstract:
- lang: eng
text: In [Jalowy, Kabluchko, Marynych, arXiv:2504.11593v1, 2025], the authors discuss
a user-friendly approach to determine the limiting empirical zero distribution
of a sequence of real-rooted polynomials, as the degree goes to ∞. In this note,
we aim to apply it to a vast range of examples of polynomials providing a unifying
source for limiting empirical zero distributions. We cover Touchard, Fubini, Eulerian,
Narayana and little q-Laguerre polynomials as well as hypergeometric polynomials
including the classical Hermite, Laguerre and Jacobi polynomials. We construct
polynomials whose empirical zero distributions converge to the free multiplicative
normal and Poisson distributions. Furthermore, we study polynomials generated
by some differential operators. As one inverse result, we derive coefficient asymptotics
of the characteristic polynomial of random covariance matrices.
author:
- first_name: Jonas
full_name: Jalowy, Jonas
last_name: Jalowy
- first_name: Zakhar
full_name: Kabluchko, Zakhar
last_name: Kabluchko
- first_name: Alexander
full_name: Marynych, Alexander
last_name: Marynych
citation:
ama: 'Jalowy J, Kabluchko Z, Marynych A. Zeros and exponential profiles of polynomials
II: Examples. Published online 2025.'
apa: 'Jalowy, J., Kabluchko, Z., & Marynych, A. (2025). Zeros and exponential
profiles of polynomials II: Examples.'
bibtex: '@article{Jalowy_Kabluchko_Marynych_2025, title={Zeros and exponential profiles
of polynomials II: Examples}, author={Jalowy, Jonas and Kabluchko, Zakhar and
Marynych, Alexander}, year={2025} }'
chicago: 'Jalowy, Jonas, Zakhar Kabluchko, and Alexander Marynych. “Zeros and Exponential
Profiles of Polynomials II: Examples,” 2025.'
ieee: 'J. Jalowy, Z. Kabluchko, and A. Marynych, “Zeros and exponential profiles
of polynomials II: Examples.” 2025.'
mla: 'Jalowy, Jonas, et al. Zeros and Exponential Profiles of Polynomials II:
Examples. 2025.'
short: J. Jalowy, Z. Kabluchko, A. Marynych, (2025).
date_created: 2025-11-24T13:55:55Z
date_updated: 2026-10-15T12:25:00Z
department:
- _id: '94'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2509.11248
oa: '1'
status: public
title: 'Zeros and exponential profiles of polynomials II: Examples'
type: preprint
user_id: '14972'
year: '2025'
...
---
_id: '66278'
author:
- first_name: Rolf
full_name: Biehler, Rolf
id: '16274'
last_name: Biehler
- first_name: Takashi
full_name: Kawakami, Takashi
last_name: Kawakami
- first_name: Erna
full_name: Lampen, Erna
last_name: Lampen
- first_name: Travis
full_name: Weiland, Travis
last_name: Weiland
- first_name: Lucía
full_name: Zapata-Cardona, Lucía
last_name: Zapata-Cardona
citation:
ama: Biehler R, Kawakami T, Lampen E, Weiland T, Zapata-Cardona L. Statistics and
data science education as a vehicle for empowering citizens–short summary of a
survey. European Mathematical Society Magazine. 2025;(136):49–52. doi:10.17619/UNIPB/1-2633
apa: Biehler, R., Kawakami, T., Lampen, E., Weiland, T., & Zapata-Cardona, L.
(2025). Statistics and data science education as a vehicle for empowering citizens–short
summary of a survey. European Mathematical Society Magazine, 136,
49–52. https://doi.org/10.17619/UNIPB/1-2633
bibtex: '@article{Biehler_Kawakami_Lampen_Weiland_Zapata-Cardona_2025, title={Statistics
and data science education as a vehicle for empowering citizens–short summary
of a survey}, DOI={10.17619/UNIPB/1-2633},
number={136}, journal={European Mathematical Society Magazine}, author={Biehler,
Rolf and Kawakami, Takashi and Lampen, Erna and Weiland, Travis and Zapata-Cardona,
Lucía}, year={2025}, pages={49–52} }'
chicago: 'Biehler, Rolf, Takashi Kawakami, Erna Lampen, Travis Weiland, and Lucía
Zapata-Cardona. “Statistics and Data Science Education as a Vehicle for Empowering
Citizens–Short Summary of a Survey.” European Mathematical Society Magazine,
no. 136 (2025): 49–52. https://doi.org/10.17619/UNIPB/1-2633.'
ieee: 'R. Biehler, T. Kawakami, E. Lampen, T. Weiland, and L. Zapata-Cardona, “Statistics
and data science education as a vehicle for empowering citizens–short summary
of a survey,” European Mathematical Society Magazine, no. 136, pp. 49–52,
2025, doi: 10.17619/UNIPB/1-2633.'
mla: Biehler, Rolf, et al. “Statistics and Data Science Education as a Vehicle for
Empowering Citizens–Short Summary of a Survey.” European Mathematical Society
Magazine, no. 136, 2025, pp. 49–52, doi:10.17619/UNIPB/1-2633.
short: R. Biehler, T. Kawakami, E. Lampen, T. Weiland, L. Zapata-Cardona, European
Mathematical Society Magazine (2025) 49–52.
date_created: 2026-07-06T08:40:10Z
date_updated: 2026-07-06T08:42:10Z
department:
- _id: '363'
doi: 10.17619/UNIPB/1-2633
issue: '136'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.17619/UNIPB/1-2633
oa: '1'
page: 49–52
publication: European Mathematical Society Magazine
status: public
title: Statistics and data science education as a vehicle for empowering citizens–short
summary of a survey
type: journal_article
user_id: '37888'
year: '2025'
...
---
_id: '58801'
abstract:
- lang: eng
text: Iran employs one of the most prominent Internet censors in the world. An important
part of Iran’s censorship apparatus is its analysis of unencrypted protocols such
as HTTP and DNS. During routine evaluations of Iran’s HTTP and DNS censorship,
we noticed several properties we believe to be unknown today. For instance, we
found injections of correct static IPs for some domains such as google.com on
the DNS level, unclear HTTP version parsing, and correlations between DNS and
HTTP censorship. In this paper, we present our findings to the community and discuss
possible takeaways for affected people and the censorship circumvention community.
As some of our findings left us bewildered, we hope to ignite a discussion about
Iran’s censorship behavior. We aim to use the discussion of our work to execute
a thorough analysis and explanation of Iran’s censorship behavior in the future.
author:
- first_name: Felix
full_name: Lange, Felix
id: '67893'
last_name: Lange
- first_name: Niklas
full_name: Niere, Niklas
id: '63563'
last_name: Niere
- first_name: Jonathan
full_name: von Niessen, Jonathan
last_name: von Niessen
- first_name: Dennis
full_name: Suermann, Dennis
last_name: Suermann
- first_name: Nico
full_name: Heitmann, Nico
id: '74619'
last_name: Heitmann
orcid: 0009-0003-7687-7044
- first_name: Juraj
full_name: Somorovsky, Juraj
id: '83504'
last_name: Somorovsky
orcid: 0000-0002-3593-7720
citation:
ama: 'Lange F, Niere N, von Niessen J, Suermann D, Heitmann N, Somorovsky J. I(ra)nconsistencies:
Novel Insights into Iran’s Censorship. In: Proceedings on Privacy Enhancing
Technologies. ; 2025.'
apa: 'Lange, F., Niere, N., von Niessen, J., Suermann, D., Heitmann, N., & Somorovsky,
J. (2025). I(ra)nconsistencies: Novel Insights into Iran’s Censorship. Proceedings
on Privacy Enhancing Technologies. Free and Open Communications on the Internet,
Virtual.'
bibtex: '@inproceedings{Lange_Niere_von Niessen_Suermann_Heitmann_Somorovsky_2025,
title={I(ra)nconsistencies: Novel Insights into Iran’s Censorship}, booktitle={Proceedings
on Privacy Enhancing Technologies}, author={Lange, Felix and Niere, Niklas and
von Niessen, Jonathan and Suermann, Dennis and Heitmann, Nico and Somorovsky,
Juraj}, year={2025} }'
chicago: 'Lange, Felix, Niklas Niere, Jonathan von Niessen, Dennis Suermann, Nico
Heitmann, and Juraj Somorovsky. “I(Ra)Nconsistencies: Novel Insights into Iran’s
Censorship.” In Proceedings on Privacy Enhancing Technologies, 2025.'
ieee: 'F. Lange, N. Niere, J. von Niessen, D. Suermann, N. Heitmann, and J. Somorovsky,
“I(ra)nconsistencies: Novel Insights into Iran’s Censorship,” presented at the
Free and Open Communications on the Internet, Virtual, 2025.'
mla: 'Lange, Felix, et al. “I(Ra)Nconsistencies: Novel Insights into Iran’s Censorship.”
Proceedings on Privacy Enhancing Technologies, 2025.'
short: 'F. Lange, N. Niere, J. von Niessen, D. Suermann, N. Heitmann, J. Somorovsky,
in: Proceedings on Privacy Enhancing Technologies, 2025.'
conference:
end_date: 2025-02-20
location: Virtual
name: Free and Open Communications on the Internet
start_date: 2025-02-20
date_created: 2025-02-24T08:09:56Z
date_updated: 2026-08-17T07:40:31Z
ddc:
- '006'
department:
- _id: '632'
file:
- access_level: local
content_type: application/pdf
creator: flange
date_created: 2025-02-24T08:07:59Z
date_updated: 2026-08-17T07:40:31Z
file_id: '58802'
file_name: foci-2025-0002.pdf
file_size: 535700
relation: main_file
file_date_updated: 2026-08-17T07:40:31Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.petsymposium.org/foci/2025/foci-2025-0002.pdf
oa: '1'
publication: Proceedings on Privacy Enhancing Technologies
quality_controlled: '1'
status: public
title: 'I(ra)nconsistencies: Novel Insights into Iran’s Censorship'
type: conference
user_id: '63563'
year: '2025'
...
---
_id: '60503'
abstract:
- lang: eng
text: 'Censors have long censored Transport Layer Security (TLS) traffic by inspecting
the domain name in the unencrypted Server Name Indication (SNI) extension. By
encrypting the SNI extension, the Encrypted ClientHello (ECH) prevents censors
from blocking TLS traffic to certain domains. Despite this promising outlook,
ECH’s current capability to contest TLS censorship is unclear; for instance, Russia
has started censoring ECH connections successfully. This paper clarifies ECH’s
current role for TLS censorship. To this end, we evaluate servers’ support for
ECH and its analysis and subsequent blocking by censors. We determine Cloudflare
as the only major provider supporting ECH. Additionally, we affirm previously
known ECH censorship in Russia and uncover indirect censorship of ECH through
encrypted DNS censorship in China and Iran. Our findings suggest that ECH’s contribution
to censorship circumvention is currently limited: we consider ECH’s dependence
on encrypted DNS especially challenging for ECH’s capability to circumvent censorship.
We stress the importance of censorship-resistant ECH to solve the long-known problem
of SNI-based TLS censorship.'
author:
- first_name: Niklas
full_name: Niere, Niklas
id: '63563'
last_name: Niere
- first_name: Felix
full_name: Lange, Felix
id: '67893'
last_name: Lange
- first_name: Nico
full_name: Heitmann, Nico
id: '74619'
last_name: Heitmann
orcid: 0009-0003-7687-7044
- first_name: Juraj
full_name: Somorovsky, Juraj
id: '83504'
last_name: Somorovsky
orcid: 0000-0002-3593-7720
citation:
ama: 'Niere N, Lange F, Heitmann N, Somorovsky J. Encrypted Client Hello (ECH) in
Censorship Circumvention. In: ; 2025.'
apa: Niere, N., Lange, F., Heitmann, N., & Somorovsky, J. (2025). Encrypted
Client Hello (ECH) in Censorship Circumvention. Free and Open Communications
on the Internet, Washington, D.C.
bibtex: '@inproceedings{Niere_Lange_Heitmann_Somorovsky_2025, title={Encrypted Client
Hello (ECH) in Censorship Circumvention}, author={Niere, Niklas and Lange, Felix
and Heitmann, Nico and Somorovsky, Juraj}, year={2025} }'
chicago: Niere, Niklas, Felix Lange, Nico Heitmann, and Juraj Somorovsky. “Encrypted
Client Hello (ECH) in Censorship Circumvention,” 2025.
ieee: N. Niere, F. Lange, N. Heitmann, and J. Somorovsky, “Encrypted Client Hello
(ECH) in Censorship Circumvention,” presented at the Free and Open Communications
on the Internet, Washington, D.C., 2025.
mla: Niere, Niklas, et al. Encrypted Client Hello (ECH) in Censorship Circumvention.
2025.
short: 'N. Niere, F. Lange, N. Heitmann, J. Somorovsky, in: 2025.'
conference:
end_date: 2025-07-14
location: Washington, D.C.
name: Free and Open Communications on the Internet
start_date: 2025-07-14
date_created: 2025-07-03T07:14:00Z
date_updated: 2026-08-17T07:40:46Z
ddc:
- '006'
file:
- access_level: local
content_type: application/pdf
creator: nniklas
date_created: 2025-07-03T07:11:14Z
date_updated: 2026-08-17T07:40:46Z
file_id: '60505'
file_name: foci-2025-0016.pdf
file_size: 755171
relation: main_file
file_date_updated: 2026-08-17T07:40:46Z
has_accepted_license: '1'
keyword:
- censorship
- circumvention
- ECH
- TLS
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.petsymposium.org/foci/2025/foci-2025-0016.pdf
oa: '1'
status: public
title: Encrypted Client Hello (ECH) in Censorship Circumvention
type: conference
user_id: '63563'
year: '2025'
...
---
_id: '66685'
abstract:
- lang: spa
text: Basado en una encuesta en línea efectuada a futuros docentes en Badajoz (España)
y Posadas (Argentina), el presente artículo explora competencias multilingües
y formas de educación intercultural más allá de las fronteras nacionales. Los
datos cuantitativos obtenidos demuestran que, en ambas ciudades, la gran mayoría
de los futuros docentes considera que los conocimientos sobre sistemas educativos
de otros países, la inclusión de recursos didácticos bi- o multilingües y la inclusión
de temas interculturales son importantes o muy importantes. Además, muchos de
los futuros profesionales de la educación cuentan con capital intercultural que
se podría aplicar en diferentes contextos nacionales y transnacionales de enseñanza
y aprendizaje interculturales. Sin embargo, para poder aprovechar plenamente su
potencial, es crucial crear contextos educativos más equitativos e incluyentes
que traten de superar los desequilibrios sistemáticos en las oportunidades de
realización del capital intercultural.
article_type: original
author:
- first_name: Andreas
full_name: Pöllmann, Andreas
id: '77437'
last_name: Pöllmann
orcid: 0000-0002-9090-2547
citation:
ama: 'Pöllmann A. Dimensiones transnacionales y multilingües de la educación intercultural:
Resultados de una encuesta a futuros docentes en Badajoz (España) y Posadas (Argentina).
Revista La Rivada. 2025;13(25):22-41.'
apa: 'Pöllmann, A. (2025). Dimensiones transnacionales y multilingües de la educación
intercultural: Resultados de una encuesta a futuros docentes en Badajoz (España)
y Posadas (Argentina). Revista La Rivada, 13(25), 22–41.'
bibtex: '@article{Pöllmann_2025, title={Dimensiones transnacionales y multilingües
de la educación intercultural: Resultados de una encuesta a futuros docentes en
Badajoz (España) y Posadas (Argentina)}, volume={13}, number={25}, journal={Revista
La Rivada}, publisher={Universidad Nacional de Misiones}, author={Pöllmann, Andreas},
year={2025}, pages={22–41} }'
chicago: 'Pöllmann, Andreas. “Dimensiones transnacionales y multilingües de la educación
intercultural: Resultados de una encuesta a futuros docentes en Badajoz (España)
y Posadas (Argentina).” Revista La Rivada 13, no. 25 (2025): 22–41.'
ieee: 'A. Pöllmann, “Dimensiones transnacionales y multilingües de la educación
intercultural: Resultados de una encuesta a futuros docentes en Badajoz (España)
y Posadas (Argentina),” Revista La Rivada, vol. 13, no. 25, pp. 22–41,
2025.'
mla: 'Pöllmann, Andreas. “Dimensiones transnacionales y multilingües de la educación
intercultural: Resultados de una encuesta a futuros docentes en Badajoz (España)
y Posadas (Argentina).” Revista La Rivada, vol. 13, no. 25, Universidad
Nacional de Misiones, 2025, pp. 22–41.'
short: A. Pöllmann, Revista La Rivada 13 (2025) 22–41.
date_created: 2026-08-08T07:53:38Z
date_updated: 2026-08-23T16:03:37Z
ddc:
- '300'
file:
- access_level: open_access
content_type: application/pdf
creator: poellman
date_created: 2026-08-08T07:53:12Z
date_updated: 2026-08-08T07:53:12Z
file_id: '66686'
file_name: La Rivada_AP.pdf
file_size: 3616733
relation: main_file
file_date_updated: 2026-08-08T07:53:12Z
has_accepted_license: '1'
intvolume: ' 13'
issue: '25'
keyword:
- educación intercultural
- capital intercultural
- encuesta comparativa
- futuros docentes
- multilingüismo
- transnacionalidad
language:
- iso: spa
oa: '1'
page: 22-41
publication: Revista La Rivada
publication_identifier:
issn:
- 2347-1085
publication_status: published
publisher: Universidad Nacional de Misiones
quality_controlled: '1'
status: public
title: 'Dimensiones transnacionales y multilingües de la educación intercultural:
Resultados de una encuesta a futuros docentes en Badajoz (España) y Posadas (Argentina)'
type: journal_article
user_id: '77437'
volume: 13
year: '2025'
...
---
_id: '65863'
abstract:
- lang: eng
text: We investigate the impact of Brexit on the corporate bond market by analyzing
a comprehensive database covering corporate bond listings on European and UK trading
venues. We find a significant shift in bond market activity, evidenced by a 49%
increase in the number of bond listings in the EEA30 countries relative to the
UK market after Brexit. Country-level analyses reveal a staggered effect on market
activity, with predominantly international issuers adjusting their bond listings
between the initially scheduled Brexit date and the final withdrawal date. At
the issuer level, our findings indicate that the relative attractiveness of the
EEA30 market has increased post-Brexit. Overall, these results suggest that the
European capital market has successfully adapted to the loss of its largest financial
center and exhibits a rising corporate bond market activity.
author:
- first_name: Benedikt
full_name: Franke, Benedikt
last_name: Franke
- first_name: Urska
full_name: Kosi, Urska
id: '54068'
last_name: Kosi
orcid: 0009-0009-2545-5929
- first_name: Pia
full_name: Stoczek, Pia
last_name: Stoczek
citation:
ama: Franke B, Kosi U, Stoczek P. Brexit and European Corporate Bond Markets.
TRR 266 Accounting for Transparency ; 2025. doi:10.2139/ssrn.5230141
apa: Franke, B., Kosi, U., & Stoczek, P. (2025). Brexit and European Corporate
Bond Markets. TRR 266 Accounting for Transparency . https://doi.org/10.2139/ssrn.5230141
bibtex: '@book{Franke_Kosi_Stoczek_2025, series={TRR 266 Accounting for Transparency
Working Paper Series No. 190}, title={Brexit and European Corporate Bond Markets},
DOI={10.2139/ssrn.5230141},
publisher={TRR 266 Accounting for Transparency }, author={Franke, Benedikt and
Kosi, Urska and Stoczek, Pia}, year={2025}, collection={TRR 266 Accounting for
Transparency Working Paper Series No. 190} }'
chicago: Franke, Benedikt, Urska Kosi, and Pia Stoczek. Brexit and European Corporate
Bond Markets. TRR 266 Accounting for Transparency Working Paper Series No.
190. TRR 266 Accounting for Transparency , 2025. https://doi.org/10.2139/ssrn.5230141.
ieee: B. Franke, U. Kosi, and P. Stoczek, Brexit and European Corporate Bond
Markets. TRR 266 Accounting for Transparency , 2025.
mla: Franke, Benedikt, et al. Brexit and European Corporate Bond Markets.
TRR 266 Accounting for Transparency , 2025, doi:10.2139/ssrn.5230141.
short: B. Franke, U. Kosi, P. Stoczek, Brexit and European Corporate Bond Markets,
TRR 266 Accounting for Transparency , 2025.
date_created: 2026-06-15T08:29:09Z
date_updated: 2026-08-25T09:51:35Z
department:
- _id: '186'
- _id: '551'
- _id: '635'
doi: 10.2139/ssrn.5230141
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://dx.doi.org/10.2139/ssrn.5230141
oa: '1'
publication_status: published
publisher: 'TRR 266 Accounting for Transparency '
series_title: TRR 266 Accounting for Transparency Working Paper Series No. 190
status: public
title: Brexit and European Corporate Bond Markets
type: working_paper
user_id: '15866'
year: '2025'
...
---
_id: '60891'
abstract:
- lang: eng
text: Straight dielectric waveguide channels made from slabs of thin-film lithium
niobate (TFLN), or lithium niobate on insulator (LNOI), are investigated in the
linear regime, for channels of rib and strip type with common trapezoidal cross
sections, in Z-cut and X-cut samples at varying on-chip orientation. We clarify
the theoretical basis for the waveguides with potentially non-diagonal core permittivity.
Symmetry classes can be distinguished that differ in their consequences for potential
modal degeneracy and polarization conversion. Our rigorous numerical analysis
by means of a finite-element solver takes the anisotropy of the lithium niobate
cores rigorously into account. We discuss extensive data for effective indices,
polarization properties, and hybridization of guided modes, in single- and multimode
channels. Scans over the waveguide width and orientation as primary parameters
are complemented by a series of illustrations of vectorial mode profiles. These
turn out to be essentially complex in cases of X-cut channels at non-crystal-axis-aligned
orientations.
author:
- first_name: Manfred
full_name: Hammer, Manfred
id: '48077'
last_name: Hammer
orcid: 0000-0002-6331-9348
- first_name: Shahriar
full_name: Khan, Shahriar
last_name: Khan
- first_name: Behnood
full_name: Taheri, Behnood
last_name: Taheri
- first_name: Henna
full_name: Farheen, Henna
id: '53444'
last_name: Farheen
orcid: 0000-0001-7730-3489
- first_name: Jens
full_name: Förstner, Jens
id: '158'
last_name: Förstner
orcid: 0000-0001-7059-9862
citation:
ama: 'Hammer M, Khan S, Taheri B, Farheen H, Förstner J. TFLN channel waveguides
of rib and strip type: Properties of guided modes. Optics Continuum. 2025;4(10):2356.
doi:10.1364/optcon.569959'
apa: 'Hammer, M., Khan, S., Taheri, B., Farheen, H., & Förstner, J. (2025).
TFLN channel waveguides of rib and strip type: Properties of guided modes. Optics
Continuum, 4(10), 2356. https://doi.org/10.1364/optcon.569959'
bibtex: '@article{Hammer_Khan_Taheri_Farheen_Förstner_2025, title={TFLN channel
waveguides of rib and strip type: Properties of guided modes}, volume={4}, DOI={10.1364/optcon.569959}, number={10},
journal={Optics Continuum}, publisher={Optica Publishing Group}, author={Hammer,
Manfred and Khan, Shahriar and Taheri, Behnood and Farheen, Henna and Förstner,
Jens}, year={2025}, pages={2356} }'
chicago: 'Hammer, Manfred, Shahriar Khan, Behnood Taheri, Henna Farheen, and Jens
Förstner. “TFLN Channel Waveguides of Rib and Strip Type: Properties of Guided
Modes.” Optics Continuum 4, no. 10 (2025): 2356. https://doi.org/10.1364/optcon.569959.'
ieee: 'M. Hammer, S. Khan, B. Taheri, H. Farheen, and J. Förstner, “TFLN channel
waveguides of rib and strip type: Properties of guided modes,” Optics Continuum,
vol. 4, no. 10, p. 2356, 2025, doi: 10.1364/optcon.569959.'
mla: 'Hammer, Manfred, et al. “TFLN Channel Waveguides of Rib and Strip Type: Properties
of Guided Modes.” Optics Continuum, vol. 4, no. 10, Optica Publishing Group,
2025, p. 2356, doi:10.1364/optcon.569959.'
short: M. Hammer, S. Khan, B. Taheri, H. Farheen, J. Förstner, Optics Continuum
4 (2025) 2356.
date_created: 2025-08-06T09:36:30Z
date_updated: 2026-09-03T09:07:47Z
ddc:
- '530'
department:
- _id: '61'
- _id: '230'
- _id: '429'
- _id: '623'
doi: 10.1364/optcon.569959
file:
- access_level: closed
content_type: application/pdf
creator: fossie
date_created: 2025-10-05T11:48:25Z
date_updated: 2025-10-05T11:48:25Z
file_id: '61516'
file_name: 2025-08 Hammer - Optics Continuum - TFLN channel waveguides of rib and
strip type. Properties of guided modes (official version).pdf
file_size: 5417636
relation: main_file
success: 1
file_date_updated: 2025-10-05T11:48:25Z
has_accepted_license: '1'
intvolume: ' 4'
issue: '10'
keyword:
- tet_topic_waveguide
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
page: '2356'
publication: Optics Continuum
publication_identifier:
issn:
- 2770-0208
publication_status: published
publisher: Optica Publishing Group
status: public
title: 'TFLN channel waveguides of rib and strip type: Properties of guided modes'
type: journal_article
user_id: '77496'
volume: 4
year: '2025'
...
---
_id: '51158'
abstract:
- lang: eng
text: "Extended Dynamic Mode Decomposition (EDMD) is a popular data-driven method
to\r\napproximate the Koopman operator for deterministic and stochastic (control)\r\nsystems.
This operator is linear and encompasses full information on the\r\n(expected stochastic)
dynamics. In this paper, we analyze a kernel-based EDMD\r\nalgorithm, known as
kEDMD, where the dictionary consists of the canonical\r\nkernel features at the
data points. The latter are acquired by i.i.d. samples\r\nfrom a user-defined
and application-driven distribution on a compact set. We\r\nprove bounds on the
prediction error of the kEDMD estimator when sampling from\r\nthis (not necessarily
ergodic) distribution. The error analysis is further\r\nextended to control-affine
systems, where the considered invariance of the\r\nReproducing Kernel Hilbert
Space is significantly less restrictive in\r\ncomparison to invariance assumptions
on an a-priori chosen dictionary."
article_number: '92'
author:
- first_name: Friedrich
full_name: Philipp, Friedrich
last_name: Philipp
- first_name: Manuel
full_name: Schaller, Manuel
last_name: Schaller
- first_name: Karl
full_name: Worthmann, Karl
last_name: Worthmann
- first_name: Sebastian
full_name: Peitz, Sebastian
id: '47427'
last_name: Peitz
orcid: 0000-0002-3389-793X
- first_name: Feliks
full_name: Nüske, Feliks
last_name: Nüske
citation:
ama: Philipp F, Schaller M, Worthmann K, Peitz S, Nüske F. Error analysis of kernel
EDMD for prediction and control in the Koopman framework. ournal of Nonlinear
Science. 2025;35. doi:10.1007/s00332-025-10182-3
apa: Philipp, F., Schaller, M., Worthmann, K., Peitz, S., & Nüske, F. (2025).
Error analysis of kernel EDMD for prediction and control in the Koopman framework.
Ournal of Nonlinear Science, 35, Article 92. https://doi.org/10.1007/s00332-025-10182-3
bibtex: '@article{Philipp_Schaller_Worthmann_Peitz_Nüske_2025, title={Error analysis
of kernel EDMD for prediction and control in the Koopman framework}, volume={35},
DOI={10.1007/s00332-025-10182-3},
number={92}, journal={ournal of Nonlinear Science}, author={Philipp, Friedrich
and Schaller, Manuel and Worthmann, Karl and Peitz, Sebastian and Nüske, Feliks},
year={2025} }'
chicago: Philipp, Friedrich, Manuel Schaller, Karl Worthmann, Sebastian Peitz, and
Feliks Nüske. “Error Analysis of Kernel EDMD for Prediction and Control in the
Koopman Framework.” Ournal of Nonlinear Science 35 (2025). https://doi.org/10.1007/s00332-025-10182-3.
ieee: 'F. Philipp, M. Schaller, K. Worthmann, S. Peitz, and F. Nüske, “Error analysis
of kernel EDMD for prediction and control in the Koopman framework,” ournal
of Nonlinear Science, vol. 35, Art. no. 92, 2025, doi: 10.1007/s00332-025-10182-3.'
mla: Philipp, Friedrich, et al. “Error Analysis of Kernel EDMD for Prediction and
Control in the Koopman Framework.” Ournal of Nonlinear Science, vol. 35,
92, 2025, doi:10.1007/s00332-025-10182-3.
short: F. Philipp, M. Schaller, K. Worthmann, S. Peitz, F. Nüske, Ournal of Nonlinear
Science 35 (2025).
date_created: 2024-02-06T08:49:50Z
date_updated: 2026-10-01T11:28:01Z
department:
- _id: '655'
doi: 10.1007/s00332-025-10182-3
external_id:
arxiv:
- '2312.10460'
intvolume: ' 35'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://link.springer.com/content/pdf/10.1007/s00332-025-10182-3.pdf
oa: '1'
publication: ournal of Nonlinear Science
status: public
title: Error analysis of kernel EDMD for prediction and control in the Koopman framework
type: journal_article
user_id: '47427'
volume: 35
year: '2025'
...
---
_id: '60290'
abstract:
- lang: eng
text: The constantly increasing demand for climate protection and resource conservation
requires innovative and versatile joining processes that improve adaptability
to the joining task and robustness to enable flexible manufacturing on a production
line. Therefore, the versatile SPR (V-SPR) and tumbling SPR (T-SPR) were developed.
Using the example of a mixed material combination HCT590X+Z (t0 = 1.0 mm) / EN
AW-6014 T4 (t0 = 2.0 mm), these processes were examined and compared with regard
to the binding mechanisms form closure and force closure using micrographs, non-destructive
resistance measurements and destructive torsion tests. For this purpose, a new
sample geometry was defined, and the methods were adapted to the SPR process variants.
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Simon
full_name: Wituschek, Simon
last_name: Wituschek
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Michael
full_name: Lechner, Michael
last_name: Lechner
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
citation:
ama: 'Lüder S, Holtkamp PK, Wituschek S, et al. Analysis of the binding mechanisms
depending on versatile process variants of self-piercing riveting. In: Meschut
G, Bobbert M, Duflou J, et al., eds. Materials Research Proceedings. Vol
52. Sheet Metal 2025. Materials Research Forum LLC; 2025:101-108. doi:10.21741/9781644903551-13'
apa: Lüder, S., Holtkamp, P. K., Wituschek, S., Bobbert, M., Meschut, G., Lechner,
M., & Schmale, H. C. (2025). Analysis of the binding mechanisms depending
on versatile process variants of self-piercing riveting. In G. Meschut, M. Bobbert,
J. Duflou, L. Fratini, H. Hagenah, P. A. F. Martins, M. Merklein, & F. Micari
(Eds.), Materials Research Proceedings (Vol. 52, pp. 101–108). Materials
Research Forum LLC. https://doi.org/10.21741/9781644903551-13
bibtex: '@inproceedings{Lüder_Holtkamp_Wituschek_Bobbert_Meschut_Lechner_Schmale_2025,
place={Millersville}, series={Sheet Metal 2025}, title={Analysis of the binding
mechanisms depending on versatile process variants of self-piercing riveting},
volume={52}, DOI={10.21741/9781644903551-13},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Lüder, Stephan and Holtkamp, Pia Katharina and Wituschek, Simon
and Bobbert, Mathias and Meschut, Gerson and Lechner, Michael and Schmale, Hans
Christian}, editor={Meschut, Gerson and Bobbert, Mathias and Duflou, Joost and
Fratini, Livan and Hagenah, Hinnerk and Martins, Paulo A. F. and Merklein, Marion
and Micari, Fabrizio}, year={2025}, pages={101–108}, collection={Sheet Metal 2025}
}'
chicago: 'Lüder, Stephan, Pia Katharina Holtkamp, Simon Wituschek, Mathias Bobbert,
Gerson Meschut, Michael Lechner, and Hans Christian Schmale. “Analysis of the
Binding Mechanisms Depending on Versatile Process Variants of Self-Piercing Riveting.”
In Materials Research Proceedings, edited by Gerson Meschut, Mathias Bobbert,
Joost Duflou, Livan Fratini, Hinnerk Hagenah, Paulo A. F. Martins, Marion Merklein,
and Fabrizio Micari, 52:101–8. Sheet Metal 2025. Millersville: Materials Research
Forum LLC, 2025. https://doi.org/10.21741/9781644903551-13.'
ieee: 'S. Lüder et al., “Analysis of the binding mechanisms depending on
versatile process variants of self-piercing riveting,” in Materials Research
Proceedings, Paderborn, 2025, vol. 52, pp. 101–108, doi: 10.21741/9781644903551-13.'
mla: Lüder, Stephan, et al. “Analysis of the Binding Mechanisms Depending on Versatile
Process Variants of Self-Piercing Riveting.” Materials Research Proceedings,
edited by Gerson Meschut et al., vol. 52, Materials Research Forum LLC, 2025,
pp. 101–08, doi:10.21741/9781644903551-13.
short: 'S. Lüder, P.K. Holtkamp, S. Wituschek, M. Bobbert, G. Meschut, M. Lechner,
H.C. Schmale, in: G. Meschut, M. Bobbert, J. Duflou, L. Fratini, H. Hagenah, P.A.F.
Martins, M. Merklein, F. Micari (Eds.), Materials Research Proceedings, Materials
Research Forum LLC, Millersville, 2025, pp. 101–108.'
conference:
end_date: 2025-04-03
location: Paderborn
name: 21st International Conference on Sheet Metal
start_date: 2025-04-01
date_created: 2025-06-20T10:13:22Z
date_updated: 2026-10-14T11:36:03Z
department:
- _id: '630'
- _id: '43'
- _id: '157'
doi: 10.21741/9781644903551-13
editor:
- first_name: Gerson
full_name: Meschut, Gerson
last_name: Meschut
- first_name: Mathias
full_name: Bobbert, Mathias
last_name: Bobbert
- first_name: Joost
full_name: Duflou, Joost
last_name: Duflou
- first_name: Livan
full_name: Fratini, Livan
last_name: Fratini
- first_name: Hinnerk
full_name: Hagenah, Hinnerk
last_name: Hagenah
- first_name: Paulo A. F.
full_name: Martins, Paulo A. F.
last_name: Martins
- first_name: Marion
full_name: Merklein, Marion
last_name: Merklein
- first_name: Fabrizio
full_name: Micari, Fabrizio
last_name: Micari
extern: '1'
intvolume: ' 52'
keyword:
- Joining
- Self-Piercing Riveting
- Sheet Metal
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://mrforum.com/wp-content/uploads/open_access/9781644903551/13.pdf?
oa: '1'
page: 101 - 108
place: Millersville
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '133'
name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '146'
name: 'TRR 285 – C02: TRR 285 - Subproject C02'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Materials Research Proceedings
publication_identifier:
issn:
- 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
series_title: Sheet Metal 2025
status: public
title: Analysis of the binding mechanisms depending on versatile process variants
of self-piercing riveting
type: conference
user_id: '104468'
volume: 52
year: '2025'
...
---
_id: '60285'
abstract:
- lang: eng
text: This paper examines the impact of a rotationally superimposed punch stroke
on the binding mechanisms of clinched joints of aluminum sheets. As part of the
development of a method for ensuring the versatility of clinching, an additional
rotational movement of the punch was introduced as a control variable to influence
friction in the mechanical joining process. The effect of rotational superimposition
on the force-displacement curve of the clinching processes was investigated using
four test variants with different kinematics. The primary objective was to evaluate
the binding mechanisms that maintain the integrity of the clinched joint. To evaluate
the force closure of the resulting joint, two testing methods were employed throughout
the course of the research, non-destructive resistance measurement using four-wire
sensing method and destructive torsion testing. A crucial factor influencing the
efficacy of the process is surface cleanliness, as contaminants between joining
partners can impede the effectiveness of the clinched joint. Therefore, all specimens
were meticulously cleaned prior to experimentation. This method exhibits promising
potential in creating clinched joints that align with the demands of flexible
manufacturing environments.
article_number: '01086'
author:
- first_name: Stephan
full_name: Lüder, Stephan
last_name: Lüder
- first_name: Eugen
full_name: Wolf, Eugen
last_name: Wolf
- first_name: Hans Christian
full_name: Schmale, Hans Christian
last_name: Schmale
- first_name: Alexander
full_name: Brosius, Alexander
last_name: Brosius
citation:
ama: 'Lüder S, Wolf E, Schmale HC, Brosius A. Investigation of the impact of a rotationally
superimposed punch stroke on the binding mechanisms of a clinched joint. In: MATEC
Web of Conferences. Vol 408. EDP Sciences; 2025. doi:10.1051/matecconf/202540801086'
apa: Lüder, S., Wolf, E., Schmale, H. C., & Brosius, A. (2025). Investigation
of the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint. MATEC Web of Conferences, 408, Article 01086.
https://doi.org/10.1051/matecconf/202540801086
bibtex: '@inproceedings{Lüder_Wolf_Schmale_Brosius_2025, title={Investigation of
the impact of a rotationally superimposed punch stroke on the binding mechanisms
of a clinched joint}, volume={408}, DOI={10.1051/matecconf/202540801086},
number={01086}, booktitle={MATEC Web of Conferences}, publisher={EDP Sciences},
author={Lüder, Stephan and Wolf, Eugen and Schmale, Hans Christian and Brosius,
Alexander}, year={2025} }'
chicago: Lüder, Stephan, Eugen Wolf, Hans Christian Schmale, and Alexander Brosius.
“Investigation of the Impact of a Rotationally Superimposed Punch Stroke on the
Binding Mechanisms of a Clinched Joint.” In MATEC Web of Conferences, Vol.
408. EDP Sciences, 2025. https://doi.org/10.1051/matecconf/202540801086.
ieee: 'S. Lüder, E. Wolf, H. C. Schmale, and A. Brosius, “Investigation of the impact
of a rotationally superimposed punch stroke on the binding mechanisms of a clinched
joint,” in MATEC Web of Conferences, Lisbon, 2025, vol. 408, doi: 10.1051/matecconf/202540801086.'
mla: Lüder, Stephan, et al. “Investigation of the Impact of a Rotationally Superimposed
Punch Stroke on the Binding Mechanisms of a Clinched Joint.” MATEC Web of Conferences,
vol. 408, 01086, EDP Sciences, 2025, doi:10.1051/matecconf/202540801086.
short: 'S. Lüder, E. Wolf, H.C. Schmale, A. Brosius, in: MATEC Web of Conferences,
EDP Sciences, 2025.'
conference:
end_date: 2025-06-05
location: Lisbon
name: '44th Conference of the International Deep Drawing Research Group (IDDRG 2025) '
start_date: 2025-06-01
date_created: 2025-06-20T06:57:16Z
date_updated: 2026-10-14T11:37:06Z
department:
- _id: '630'
doi: 10.1051/matecconf/202540801086
extern: '1'
intvolume: ' 408'
keyword:
- Joining
- Sheet Metal
- Tribology
- Clinching
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.matec-conferences.org/articles/matecconf/pdf/2025/02/matecconf_iddrg2025_01086.pdf
oa: '1'
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '138'
name: 'TRR 285 – A04: TRR 285 - Subproject A04'
- _id: '132'
name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '140'
name: 'TRR 285 – B01: TRR 285 - Subproject B01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: MATEC Web of Conferences
publication_identifier:
issn:
- 2261-236X
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
status: public
title: Investigation of the impact of a rotationally superimposed punch stroke on
the binding mechanisms of a clinched joint
type: conference
user_id: '104468'
volume: 408
year: '2025'
...
---
_id: '50301'
author:
- first_name: Guido
full_name: Schryen, Guido
last_name: Schryen
citation:
ama: 'Schryen G. Speedup and efficiency of computational parallelization: A unifying
approach and asymptotic analysis. Journal of Parallel and Distributed Computing.
Published online 2024.'
apa: 'Schryen, G. (2024). Speedup and efficiency of computational parallelization:
A unifying approach and asymptotic analysis. Journal of Parallel and Distributed
Computing.'
bibtex: '@article{Schryen_2024, title={Speedup and efficiency of computational parallelization:
A unifying approach and asymptotic analysis}, journal={Journal of Parallel and
Distributed Computing}, author={Schryen, Guido}, year={2024} }'
chicago: 'Schryen, Guido. “Speedup and Efficiency of Computational Parallelization:
A Unifying Approach and Asymptotic Analysis.” Journal of Parallel and Distributed
Computing, 2024.'
ieee: 'G. Schryen, “Speedup and efficiency of computational parallelization: A unifying
approach and asymptotic analysis,” Journal of Parallel and Distributed Computing,
2024.'
mla: 'Schryen, Guido. “Speedup and Efficiency of Computational Parallelization:
A Unifying Approach and Asymptotic Analysis.” Journal of Parallel and Distributed
Computing, 2024.'
short: G. Schryen, Journal of Parallel and Distributed Computing (2024).
date_created: 2024-01-09T10:40:44Z
date_updated: 2024-01-09T10:40:55Z
ddc:
- '000'
department:
- _id: '277'
file:
- access_level: open_access
content_type: application/pdf
creator: mateskam
date_created: 2024-01-09T10:39:33Z
date_updated: 2024-01-09T10:39:33Z
file_id: '50375'
file_name: ParallelScalabilityAnalysis__Preprint.pdf
file_size: 989773
relation: main_file
file_date_updated: 2024-01-09T10:39:33Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
publication: Journal of Parallel and Distributed Computing
status: public
title: 'Speedup and efficiency of computational parallelization: A unifying approach
and asymptotic analysis'
type: journal_article
user_id: '51811'
year: '2024'
...
---
_id: '50101'
author:
- first_name: Domenik
full_name: Domenik Ackermann
id: '103893'
last_name: Ackermann
orcid: https://orcid.org/0000-0002-3453-4989
citation:
ama: Ackermann D. New Quick And Easy Publication - Will be edited by LibreCat team.
Quick And Easy Journal Title. Published online 2024.
apa: Ackermann, D. (2024). New Quick And Easy Publication - Will be edited by LibreCat
team. Quick And Easy Journal Title.
bibtex: '@article{Ackermann_2024, title={New Quick And Easy Publication - Will be
edited by LibreCat team}, journal={Quick And Easy Journal Title}, author={Ackermann,
Domenik}, year={2024} }'
chicago: Ackermann, Domenik. “New Quick And Easy Publication - Will Be Edited by
LibreCat Team.” Quick And Easy Journal Title, 2024.
ieee: D. Ackermann, “New Quick And Easy Publication - Will be edited by LibreCat
team,” Quick And Easy Journal Title, 2024.
mla: Ackermann, Domenik. “New Quick And Easy Publication - Will Be Edited by LibreCat
Team.” Quick And Easy Journal Title, 2024.
short: D. Ackermann, Quick And Easy Journal Title (2024).
date_created: 2024-01-03T00:54:39Z
date_updated: 2024-01-10T14:21:10Z
file:
- access_level: open_access
content_type: application/pdf
creator: doac
date_created: 2024-01-03T00:54:25Z
date_updated: 2024-01-03T00:54:25Z
file_id: '50102'
file_name: 643-Article Text-2497-1-10-20220327.pdf
file_size: 156111
relation: main_file
file_date_updated: 2024-01-03T00:54:25Z
has_accepted_license: 1
oa: '1'
publication: Quick And Easy Journal Title
status: public
title: New Quick And Easy Publication - Will be edited by LibreCat team
type: journal_article
user_id: '103893'
year: '2024'
...
---
_id: '50099'
author:
- first_name: Domenik
full_name: Domenik Ackermann
id: '103893'
last_name: Ackermann
orcid: https://orcid.org/0000-0002-3453-4989
citation:
ama: Ackermann D. New Quick And Easy Publication - Will be edited by LibreCat team.
Quick And Easy Journal Title. Published online 2024.
apa: Ackermann, D. (2024). New Quick And Easy Publication - Will be edited by LibreCat
team. Quick And Easy Journal Title.
bibtex: '@article{Ackermann_2024, title={New Quick And Easy Publication - Will be
edited by LibreCat team}, journal={Quick And Easy Journal Title}, author={Ackermann,
Domenik}, year={2024} }'
chicago: Ackermann, Domenik. “New Quick And Easy Publication - Will Be Edited by
LibreCat Team.” Quick And Easy Journal Title, 2024.
ieee: D. Ackermann, “New Quick And Easy Publication - Will be edited by LibreCat
team,” Quick And Easy Journal Title, 2024.
mla: Ackermann, Domenik. “New Quick And Easy Publication - Will Be Edited by LibreCat
Team.” Quick And Easy Journal Title, 2024.
short: D. Ackermann, Quick And Easy Journal Title (2024).
date_created: 2024-01-03T00:53:22Z
date_updated: 2024-01-10T14:21:02Z
file:
- access_level: open_access
content_type: application/pdf
creator: doac
date_created: 2024-01-03T00:52:47Z
date_updated: 2024-01-03T00:52:47Z
file_id: '50100'
file_name: 681-Article Text-2841-1-10-20220820.pdf
file_size: 186879
relation: main_file
file_date_updated: 2024-01-03T00:52:47Z
has_accepted_license: 1
oa: '1'
publication: Quick And Easy Journal Title
status: public
title: New Quick And Easy Publication - Will be edited by LibreCat team
type: journal_article
user_id: '103893'
year: '2024'
...
---
_id: '49772'
author:
- first_name: Yves
full_name: Huybrechts, Yves
id: '78579'
last_name: Huybrechts
orcid: 0009-0009-2166-9794
- first_name: Resul
full_name: Karaca, Resul
last_name: Karaca
citation:
ama: Huybrechts Y, Karaca R. BelgienNet – une plateforme pour l’accès aux langues
et cultures de la Belgique. Synergies Pays germanophones. 2024;16:119-131.
apa: Huybrechts, Y., & Karaca, R. (2024). BelgienNet – une plateforme pour l’accès
aux langues et cultures de la Belgique. Synergies Pays germanophones, 16,
119–131.
bibtex: '@article{Huybrechts_Karaca_2024, title={BelgienNet – une plateforme pour
l’accès aux langues et cultures de la Belgique}, volume={16}, journal={Synergies
Pays germanophones}, publisher={GERFLINT}, author={Huybrechts, Yves and Karaca,
Resul}, year={2024}, pages={119–131} }'
chicago: 'Huybrechts, Yves, and Resul Karaca. “BelgienNet – une plateforme pour
l’accès aux langues et cultures de la Belgique.” Synergies Pays germanophones
16 (2024): 119–31.'
ieee: Y. Huybrechts and R. Karaca, “BelgienNet – une plateforme pour l’accès aux
langues et cultures de la Belgique,” Synergies Pays germanophones, vol.
16, pp. 119–131, 2024.
mla: Huybrechts, Yves, and Resul Karaca. “BelgienNet – une plateforme pour l’accès
aux langues et cultures de la Belgique.” Synergies Pays germanophones,
vol. 16, GERFLINT, 2024, pp. 119–31.
short: Y. Huybrechts, R. Karaca, Synergies Pays germanophones 16 (2024) 119–131.
date_created: 2023-12-18T10:07:39Z
date_updated: 2024-01-26T19:38:47Z
department:
- _id: '448'
intvolume: ' 16'
language:
- iso: fre
main_file_link:
- open_access: '1'
url: https://gerflint.fr/images/revues/Paysgermanophones/SPG_16/karaca_huybrecht.pdf
oa: '1'
page: 119-131
publication: Synergies Pays germanophones
publication_identifier:
issn:
- 1866-5268
publication_status: published
publisher: GERFLINT
status: public
title: BelgienNet – une plateforme pour l’accès aux langues et cultures de la Belgique
type: journal_article
user_id: '78579'
volume: 16
year: '2024'
...
---
_id: '50841'
article_type: original
author:
- first_name: 'Giordano '
full_name: 'Moretto, Giordano '
last_name: Moretto
- first_name: 'Nicolas '
full_name: 'Schnell, Nicolas '
last_name: Schnell
- first_name: 'Jonathan '
full_name: 'Frey, Jonathan '
last_name: Frey
- first_name: Yasin
full_name: Karakaya, Yasin
id: '95069'
last_name: Karakaya
- first_name: Alois
full_name: Amstutz, Alois
last_name: Amstutz
- first_name: Moritz
full_name: Diehl, Moritz
last_name: Diehl
- first_name: Tina
full_name: Kasper, Tina
id: '94562'
last_name: Kasper
orcid: '0000-0003-3993-5316 '
- first_name: Christopher
full_name: Onder, Christopher
last_name: Onder
citation:
ama: Moretto G, Schnell N, Frey J, et al. Fast model-based calibration of multiple
injections for a CI engine using nonlinear optimal control. Control Engineering
Practice. 2024;145:105848. doi:10.1016/j.conengprac.2024.105848
apa: Moretto, G., Schnell, N., Frey, J., Karakaya, Y., Amstutz, A., Diehl, M., Kasper,
T., & Onder, C. (2024). Fast model-based calibration of multiple injections
for a CI engine using nonlinear optimal control. Control Engineering Practice,
145, 105848. https://doi.org/10.1016/j.conengprac.2024.105848
bibtex: '@article{Moretto_Schnell_Frey_Karakaya_Amstutz_Diehl_Kasper_Onder_2024,
title={Fast model-based calibration of multiple injections for a CI engine using
nonlinear optimal control}, volume={145}, DOI={10.1016/j.conengprac.2024.105848},
journal={Control Engineering Practice}, author={Moretto, Giordano and Schnell,
Nicolas and Frey, Jonathan and Karakaya, Yasin and Amstutz, Alois and Diehl,
Moritz and Kasper, Tina and Onder, Christopher}, year={2024}, pages={105848} }'
chicago: 'Moretto, Giordano , Nicolas Schnell, Jonathan Frey, Yasin Karakaya,
Alois Amstutz, Moritz Diehl, Tina Kasper, and Christopher Onder. “Fast Model-Based
Calibration of Multiple Injections for a CI Engine Using Nonlinear Optimal Control.”
Control Engineering Practice 145 (2024): 105848. https://doi.org/10.1016/j.conengprac.2024.105848.'
ieee: 'G. Moretto et al., “Fast model-based calibration of multiple injections
for a CI engine using nonlinear optimal control,” Control Engineering Practice,
vol. 145, p. 105848, 2024, doi: 10.1016/j.conengprac.2024.105848.'
mla: Moretto, Giordano, et al. “Fast Model-Based Calibration of Multiple Injections
for a CI Engine Using Nonlinear Optimal Control.” Control Engineering Practice,
vol. 145, 2024, p. 105848, doi:10.1016/j.conengprac.2024.105848.
short: G. Moretto, N. Schnell, J. Frey, Y. Karakaya, A. Amstutz, M. Diehl, T. Kasper,
C. Onder, Control Engineering Practice 145 (2024) 105848.
date_created: 2024-01-25T16:23:36Z
date_updated: 2024-01-30T10:26:44Z
department:
- _id: '728'
doi: 10.1016/j.conengprac.2024.105848
intvolume: ' 145'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.sciencedirect.com/science/article/pii/S096706612400008X
oa: '1'
page: '105848'
publication: Control Engineering Practice
publication_status: published
quality_controlled: '1'
status: public
title: Fast model-based calibration of multiple injections for a CI engine using nonlinear
optimal control
type: journal_article
user_id: '95069'
volume: 145
year: '2024'
...
---
_id: '51156'
abstract:
- lang: eng
text: 'Ferroelectric domain wall (DW) conductivity (DWC) can be attributed to two
separate mechanisms: (a) the injection/ejection of charge carriers across the
Schottky barrier formed at the (metal-)electrode-DW junction and (b) the transport
of those charge carriers along the DW. Current-voltage (I-U) characteristics,
recorded at variable temperatures from LiNbO3 (LNO) DWs, are clearly able to differentiate
between these two contributions. Practically, they allow us to directly quantify
the physical parameters relevant to the two mechanisms (a) and (b) mentioned above.
These are, for example, the resistance of the DW, the saturation current, the
ideality factor, and the Schottky barrier height of the electrode-DW junction.
Furthermore, the activation energies needed to initiate the thermally activated
electronic transport along the DWs can be extracted. In addition, we show that
electronic transport along LNO DWs can be elegantly viewed and interpreted in
an adapted semiconductor picture based on a double-diode, double-resistor equivalent-circuit
model, the R2D2 model. Finally, our R2D2 model was checked for its universality
by successfully fitting the I-U curves of not only z-cut LNO bulk DWs, but equally
of z-cut thin-film LNO DWs, and of x-cut thin-film DWs as reported in literature.'
article_number: '024007'
article_type: original
author:
- first_name: Manuel
full_name: Zahn, Manuel
last_name: Zahn
- first_name: Elke
full_name: Beyreuther, Elke
last_name: Beyreuther
- first_name: Iuliia
full_name: Kiseleva, Iuliia
last_name: Kiseleva
- first_name: Ahmed Samir
full_name: Lotfy, Ahmed Samir
last_name: Lotfy
- first_name: Conor J.
full_name: McCluskey, Conor J.
last_name: McCluskey
- first_name: Jesi R.
full_name: Maguire, Jesi R.
last_name: Maguire
- first_name: Ahmet
full_name: Suna, Ahmet
last_name: Suna
- first_name: Michael
full_name: Rüsing, Michael
id: '22501'
last_name: Rüsing
orcid: 0000-0003-4682-4577
- first_name: J. Marty
full_name: Gregg, J. Marty
last_name: Gregg
- first_name: Lukas M.
full_name: Eng, Lukas M.
last_name: Eng
citation:
ama: Zahn M, Beyreuther E, Kiseleva I, et al. Equivalent-circuit model that quantitatively
describes domain-wall conductivity in ferroelectric lithium . Physical Review
Applied. 2024;21(2). doi:10.1103/physrevapplied.21.024007
apa: Zahn, M., Beyreuther, E., Kiseleva, I., Lotfy, A. S., McCluskey, C. J., Maguire,
J. R., Suna, A., Rüsing, M., Gregg, J. M., & Eng, L. M. (2024). Equivalent-circuit
model that quantitatively describes domain-wall conductivity in ferroelectric
lithium . Physical Review Applied, 21(2), Article 024007. https://doi.org/10.1103/physrevapplied.21.024007
bibtex: '@article{Zahn_Beyreuther_Kiseleva_Lotfy_McCluskey_Maguire_Suna_Rüsing_Gregg_Eng_2024,
title={Equivalent-circuit model that quantitatively describes domain-wall conductivity
in ferroelectric lithium }, volume={21}, DOI={10.1103/physrevapplied.21.024007},
number={2024007}, journal={Physical Review Applied}, publisher={American Physical
Society (APS)}, author={Zahn, Manuel and Beyreuther, Elke and Kiseleva, Iuliia
and Lotfy, Ahmed Samir and McCluskey, Conor J. and Maguire, Jesi R. and Suna,
Ahmet and Rüsing, Michael and Gregg, J. Marty and Eng, Lukas M.}, year={2024}
}'
chicago: Zahn, Manuel, Elke Beyreuther, Iuliia Kiseleva, Ahmed Samir Lotfy, Conor
J. McCluskey, Jesi R. Maguire, Ahmet Suna, Michael Rüsing, J. Marty Gregg, and
Lukas M. Eng. “Equivalent-Circuit Model That Quantitatively Describes Domain-Wall
Conductivity in Ferroelectric Lithium .” Physical Review Applied 21, no.
2 (2024). https://doi.org/10.1103/physrevapplied.21.024007.
ieee: 'M. Zahn et al., “Equivalent-circuit model that quantitatively describes
domain-wall conductivity in ferroelectric lithium ,” Physical Review Applied,
vol. 21, no. 2, Art. no. 024007, 2024, doi: 10.1103/physrevapplied.21.024007.'
mla: Zahn, Manuel, et al. “Equivalent-Circuit Model That Quantitatively Describes
Domain-Wall Conductivity in Ferroelectric Lithium .” Physical Review Applied,
vol. 21, no. 2, 024007, American Physical Society (APS), 2024, doi:10.1103/physrevapplied.21.024007.
short: M. Zahn, E. Beyreuther, I. Kiseleva, A.S. Lotfy, C.J. McCluskey, J.R. Maguire,
A. Suna, M. Rüsing, J.M. Gregg, L.M. Eng, Physical Review Applied 21 (2024).
date_created: 2024-02-06T08:02:15Z
date_updated: 2024-02-06T08:08:09Z
department:
- _id: '15'
- _id: '169'
- _id: '623'
- _id: '288'
doi: 10.1103/physrevapplied.21.024007
intvolume: ' 21'
issue: '2'
keyword:
- General Physics and Astronomy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2307.10322
oa: '1'
publication: Physical Review Applied
publication_identifier:
issn:
- 2331-7019
publication_status: published
publisher: American Physical Society (APS)
quality_controlled: '1'
status: public
title: 'Equivalent-circuit model that quantitatively describes domain-wall conductivity
in ferroelectric lithium '
type: journal_article
user_id: '22501'
volume: 21
year: '2024'
...