---
_id: '61276'
author:
- first_name: Christian
full_name: Fuchs, Christian
id: '21863'
last_name: Fuchs
orcid: 0000-0003-0589-4579
citation:
ama: 'Fuchs C. INNOVADE Press Release: INNOVADE Publishes an Interdisciplinary
Knowledge Base on Digital Democracy. LibreCat University; 2025. doi:10.5281/ZENODO.17119943'
apa: 'Fuchs, C. (2025). INNOVADE Press Release: INNOVADE publishes an Interdisciplinary
Knowledge Base on Digital Democracy. LibreCat University. https://doi.org/10.5281/ZENODO.17119943'
bibtex: '@book{Fuchs_2025, title={INNOVADE Press Release: INNOVADE publishes an
Interdisciplinary Knowledge Base on Digital Democracy}, DOI={10.5281/ZENODO.17119943},
publisher={LibreCat University}, author={Fuchs, Christian}, year={2025} }'
chicago: 'Fuchs, Christian. INNOVADE Press Release: INNOVADE Publishes an Interdisciplinary
Knowledge Base on Digital Democracy. LibreCat University, 2025. https://doi.org/10.5281/ZENODO.17119943.'
ieee: 'C. Fuchs, INNOVADE Press Release: INNOVADE publishes an Interdisciplinary
Knowledge Base on Digital Democracy. LibreCat University, 2025.'
mla: 'Fuchs, Christian. INNOVADE Press Release: INNOVADE Publishes an Interdisciplinary
Knowledge Base on Digital Democracy. LibreCat University, 2025, doi:10.5281/ZENODO.17119943.'
short: 'C. Fuchs, INNOVADE Press Release: INNOVADE Publishes an Interdisciplinary
Knowledge Base on Digital Democracy, LibreCat University, 2025.'
date_created: 2025-09-15T14:47:05Z
date_updated: 2026-04-17T05:07:50Z
department:
- _id: '136'
- _id: '11'
doi: 10.5281/ZENODO.17119943
project:
- _id: '1397'
name: INNOVAtive DEmocracy Through Digitalisation
publisher: LibreCat University
status: public
title: 'INNOVADE Press Release: INNOVADE publishes an Interdisciplinary Knowledge
Base on Digital Democracy'
type: research_data
user_id: '21863'
year: '2025'
...
---
_id: '58606'
article_type: original
author:
- first_name: Albert
full_name: Mathew, Albert
last_name: Mathew
- first_name: Rebecca
full_name: Aschwanden, Rebecca
last_name: Aschwanden
- first_name: Aditya
full_name: Tripathi, Aditya
last_name: Tripathi
- first_name: Piyush
full_name: Jangid, Piyush
last_name: Jangid
- first_name: Basudeb
full_name: Sain, Basudeb
last_name: Sain
- first_name: Thomas
full_name: Zentgraf, Thomas
id: '30525'
last_name: Zentgraf
orcid: 0000-0002-8662-1101
- first_name: Sergey
full_name: Kruk, Sergey
last_name: Kruk
citation:
ama: Mathew A, Aschwanden R, Tripathi A, et al. Nonreciprocal Metasurfaces with
Epsilon-Near-Zero Materials. Nano Letters. Published online 2025. doi:10.1021/acs.nanolett.4c06188
apa: Mathew, A., Aschwanden, R., Tripathi, A., Jangid, P., Sain, B., Zentgraf, T.,
& Kruk, S. (2025). Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials.
Nano Letters. https://doi.org/10.1021/acs.nanolett.4c06188
bibtex: '@article{Mathew_Aschwanden_Tripathi_Jangid_Sain_Zentgraf_Kruk_2025, title={Nonreciprocal
Metasurfaces with Epsilon-Near-Zero Materials}, DOI={10.1021/acs.nanolett.4c06188},
journal={Nano Letters}, publisher={American Chemical Society (ACS)}, author={Mathew,
Albert and Aschwanden, Rebecca and Tripathi, Aditya and Jangid, Piyush and Sain,
Basudeb and Zentgraf, Thomas and Kruk, Sergey}, year={2025} }'
chicago: Mathew, Albert, Rebecca Aschwanden, Aditya Tripathi, Piyush Jangid, Basudeb
Sain, Thomas Zentgraf, and Sergey Kruk. “Nonreciprocal Metasurfaces with Epsilon-Near-Zero
Materials.” Nano Letters, 2025. https://doi.org/10.1021/acs.nanolett.4c06188.
ieee: 'A. Mathew et al., “Nonreciprocal Metasurfaces with Epsilon-Near-Zero
Materials,” Nano Letters, 2025, doi: 10.1021/acs.nanolett.4c06188.'
mla: Mathew, Albert, et al. “Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials.”
Nano Letters, American Chemical Society (ACS), 2025, doi:10.1021/acs.nanolett.4c06188.
short: A. Mathew, R. Aschwanden, A. Tripathi, P. Jangid, B. Sain, T. Zentgraf, S.
Kruk, Nano Letters (2025).
date_created: 2025-02-12T12:54:41Z
date_updated: 2026-04-20T05:06:06Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1021/acs.nanolett.4c06188
external_id:
arxiv:
- '2501.11920'
keyword:
- metasurfaces
- nanophotonics
- nonreciprocity
- optical isolators
- silicon photonics
language:
- iso: eng
main_file_link:
- url: https://pubs.acs.org/doi/full/10.1021/acs.nanolett.4c06188
project:
- _id: '53'
name: 'TRR 142: TRR 142 - Maßgeschneiderte nichtlineare Photonik: Von grundlegenden
Konzepten zu funktionellen Strukturen'
- _id: '54'
name: 'TRR 142 - A: TRR 142 - Project Area A'
- _id: '55'
name: 'TRR 142 - B: TRR 142 - Project Area B'
- _id: '170'
name: 'TRR 142 - B09: TRR 142 - Effiziente Erzeugung mit maßgeschneiderter optischer
Phaselage der zweiten Harmonischen mittels Quasi-gebundener Zustände in GaAs Metaoberflächen
(B09*)'
- _id: '65'
name: 'TRR 142 - A08: TRR 142 - Nichtlineare Kopplung von Zwischenschicht-Exzitonen
in van der Waals-Heterostrukturen an plasmonische und dielektrische Nanokavitäten
(A08)'
publication: Nano Letters
publication_identifier:
issn:
- 1530-6984
- 1530-6992
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Nonreciprocal Metasurfaces with Epsilon-Near-Zero Materials
type: journal_article
user_id: '30525'
year: '2025'
...
---
_id: '64902'
abstract:
- lang: ger
text: 'Diese Dissertation behandelt die Entwicklung, Erprobung und Evaluation einer
mobilen Augmented Reality Anwendung (mAR-App) namens PEARL (Paderborner Elektrotechnik
AR Laborpraktikum), die als Vorbereitungsmaßnahme für elektrotechnische Laborpraktika
konzipiert wird. Ziel ist es, Studierenden eine zeitlich und örtlich flexible
Möglichkeit zu bieten, den realitätsnahen Umgang mit Laborgeräten - primär dem
Oszilloskop - zu erlernen. Die methodische Grundlage bilden der Makrozyklus von
Design-Based Research (DBR) als strukturierender Rahmen und das heuristische Modell
des Research Pentagons, das die Durchführung auf Mikroebene bestimmt. In insgesamt
vier Research Pentagons werden didaktische, technologische, motivationale und
evaluative Komponenten systematisch untersucht und weiterentwickelt. Das erste
Pentagon fokussiert die Entwicklung eines didaktisch fundierten Konzepts nach
dem Prinzip des Constructive Alignment, das Lernziele, Lernaktivitäten und Prüfungsformen
in fünf abgestufte Lernlevel überführt. Diese reichen von der initialen Orientierung
bis zur eigenständigen Problemlösung in einem freien Experimentiermodus. Im zweiten
Research Pentagon wird die technische Machbarkeit von Augmented - und Virtual
Reality (VR) im Laborumfeld anhand mehrerer funktionaler Prototypen evaluiert.
Während sich VR aufgrund technischer Einschränkungen als ungeeignet erweist, zeigt
AR - insbesondere in der markerlosen Ausführung mittels der Software Development
Kits (SDKs) ARCore und ARKit - ein hohes Potenzial für den praktischen Einsatz.
Im dritten Pentagon entsteht ein Onboarding-Modul, das auf die erste Version der
mobilen App (V0.17.01) aufsetzt und grundlegende Funktionen eines realen Oszilloskops
digital abbildet. Dabei werden Nutzer:innen schrittweise an das virtuelle Oszilloskop
herangeführt und lernen zugleich die zentralen Funktionen der mAR-App kennen.
Die Ergebnisse zeigen eine insgesamt neutrale bis leicht positive Nutzungserfahrung,
wobei technische Schwächen (z.B. Reaktionszeit oder Objektverankerung) die Effizienz
und Steuerbarkeit beeinträchtigen. Im Exkurs-Kapitel erfolgt eine Eye-Tracking-Studie
zur Untersuchung visueller Aufmerksamkeit und individueller Lösungsstrategien
von Expert:innen und Noviz:innen bei der Arbeit am realen Oszilloskop. Heatmaps
und Zeitverläufe in definierten Areas of Interest (AOI) liefern erste Hinweise
auf Unterschiede im Blickverhalten zwischen den Gruppen. Die algorithmischen Scanpfadanalysen
der Blickverläufe hingegen zeigen eine geringe Trennschärfe. Das Potenzial von
Eye-Tracking als Evaluationsmethode wird daher kritisch reflektiert, aber angesichts
technologischer Entwicklungen und verfügbarer Eye-Tracker in Mixed Reality (MR)
Brillen weiterhin als zukunftsrelevant eingeordnet. Die abschließende summative
Evaluation nutzt ein Prä‑Post-Test-Design mit Kontrollgruppenvergleich mit 70
Teilnehmenden, um die Lernwirksamkeit der überarbeiteten mAR-App mit klassischen
Materialien wie Videos und Handbüchern zu vergleichen. In der Interventionsgruppe
(IG) zeigen sich auf kognitiver und affektiver Ebene signifikant positive Veränderungen:
Die Leistungen steigen deutlich, insbesondere in den Taxonomiestufen Anwendung,
Verständnis und Analyse; zugleich nehmen experimentelles Selbstkonzept und experimentelles
Sachinteresse zu, während Überforderung und Ängstlichkeit im Hinblick auf die
Laborpraktika abnehmen. Als Einschränkung zeigt sich, dass die mAR-App keinen
klaren Vorsprung gegenüber der Kontrollgruppe (KG) erreicht, was sowohl auf die
sehr gut ausgearbeiteten Materialien und Videos der KG als auch auf technische
Begrenzungen der mobilen Umsetzung zurückzuführen ist: Kleine Displays, 2D-Oberflächen
für 3D-Geräte und unpräzise Touch-Interaktionen erschweren komplexe, feinmotorische
Aufgaben. In den begleitenden User Interface (UI) und User Experience (UX) Fragebögen
spiegeln sich diese Limitationen in gemischten Bewertungen der App wider. Die
Arbeit verdeutlicht, dass die mobile AR-Anwendung trotz technischer Einschränkungen
wertvolle Möglichkeiten für die Vorbereitung auf Laborpraktika und das Kennenlernen
von Laborgeräten bieten kann. Der Fokus bei der Entwicklung liegt von Beginn an
auf einer modularen und flexiblen App-Architektur, um sie mit neuen Geräten und
Aufgaben zu erweitern. Der Hauptnutzen liegt perspektivisch nicht in der mobilen
Anwendung selbst, sondern in der strategischen Ausrichtung auf zukunftsfähige,
skalierbare Lösungen für MR-Brillen. Diese erlauben eine authentische Gestensteuerung
und realitätsnahe Interaktionen.'
- lang: eng
text: 'This thesis examines the development, testing, and evaluation of a mobile
augmented reality application (mAR app), which is designed as a preparation tool
for electrical engineering laboratory courses. The aim is to offer students an
opportunity to work with laboratory equipment - primarily the oscilloscope - realistically
without location and time constraints. The methodological basis is formed by the
macrocycle of design-based research (DBR) as a structured framework and the heuristic
model of the research pentagon, which specifies the implementation at the micro
level. Didactic, technological, motivational, and evaluative components are systematically
examined and further developed in a total of four research pentagons. The first
pentagon focuses on the development of a didactically sound concept based on the
principle of constructive alignment, which incorporates learning objectives, learning
activities, and forms of assessment into five graduated learning levels. These
range from initial orientation to independent problem-solving in a free experimentation
mode. The second phase evaluates the technical feasibility of augmented and virtual
reality (VR) in the laboratory environment using several prototypes. While VR
turns out to be unsuitable due to technical limitations, AR - especially in the
markerless version using the ARCore and ARKit software development kits (SDKs)
- shows great potential for everyday use. In the third research pentagon, an onboarding
module is created based on the first version of the mobile app (V0.17.01), which
digitally maps the basic functions of a real oscilloscope. During this process,
users are introduced to the virtual oscilloscope and become familiar with the
main functions of the mAR app. The results show an overall neutral to slightly
positive user experience, although technical weaknesses (e.g., reaction time and
object fixing) negatively impact efficiency and controllability. In the fourth
research pentagon, an eye-tracking study is carried out to investigate visual
attention and individual solution strategies of expert and novice users when working
with real oscilloscopes. Heatmaps and time sequences in defined areas of interest
(AOI) provide first indications of differences in gaze behavior between the groups.
The algorithmic scan path analysis, on the other hand, reveals a low degree of
differentiation. The potential of eye tracking as an evaluation method is therefore
critically reflected, but it is still considered to be relevant for future studies
in light of technological advancements and the availability of eye trackers in
mixed reality (MR) glasses. The final summative evaluation is carried out in the
way of a pre-post test design with 70 participants and compares the usage of traditional
materials such as videos and manuals with the improved mAR app. In the intervention
group (IG), significant improvements emerge on both cognitive and affective levels:
performance increases particularly in the areas of application, understanding,
and analysis, while experimental self-concept and subject-related interest rise
and feelings of overload and anxiety regarding the lab courses decline. As a limitation,
the mAR app does not yield a clear advantage over the control group (CG), which
can be attributed both to the highly refined materials and videos used in the
CG and to technical constraints inherent to the mobile implementation: small displays,
2D interfaces on 3D devices, and imprecise touch interaction limit complex, sensitive
motor tasks. These limitations are also reflected in the accompanying user interface
(UI) and user experience (UX) questionnaires, which indicate mixed app ratings.
Both groups show significant learning gains - particularly in the areas of application,
understanding, and analysis. However, a significant advantage of the mAR App cannot
be proven. Affective characteristics such as experimental self-concept and general
experimental interests increase in both groups, while the feeling of fear before
conducting real laboratory work decreases. The app itself achieves average ratings
in user interface (UI) and user experience (UX) questionnaires. The thesis demonstrates
that, despite technical limitations, the mobile AR application can provide a valuable
alternative for preparing students for laboratory courses and familiarizing them
with laboratory equipment. From the very beginning, the primary goal during development
was a modular and flexible app architecture that can be extended with new devices,
tasks, and functions. The main benefit is not in the mobile application itself,
but in the strategic direction of future-oriented and scalable solutions for MR
glasses, which allow immersive and realistic gesture interactions.'
author:
- first_name: Mesut
full_name: Alptekin, Mesut
id: '11763'
last_name: Alptekin
orcid: 0009-0004-8545-1165
citation:
ama: Alptekin M. Entwicklung Einer Augmented Reality Basierten Anwendung Als
Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat University;
2025. doi:10.17619/UNIPB/1-2483
apa: Alptekin, M. (2025). Entwicklung einer Augmented Reality basierten Anwendung
als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat
University. https://doi.org/10.17619/UNIPB/1-2483
bibtex: '@book{Alptekin_2025, title={Entwicklung einer Augmented Reality basierten
Anwendung als Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik},
DOI={10.17619/UNIPB/1-2483},
publisher={LibreCat University}, author={Alptekin, Mesut}, year={2025} }'
chicago: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung
Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat
University, 2025. https://doi.org/10.17619/UNIPB/1-2483.
ieee: M. Alptekin, Entwicklung einer Augmented Reality basierten Anwendung als
Vorbereitungsmaßnahme zum Laborpraktikum in der Elektrotechnik. LibreCat University,
2025.
mla: Alptekin, Mesut. Entwicklung Einer Augmented Reality Basierten Anwendung
Als Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik. LibreCat
University, 2025, doi:10.17619/UNIPB/1-2483.
short: M. Alptekin, Entwicklung Einer Augmented Reality Basierten Anwendung Als
Vorbereitungsmaßnahme Zum Laborpraktikum in Der Elektrotechnik, LibreCat University,
2025.
date_created: 2026-03-11T11:05:08Z
date_updated: 2026-04-20T07:46:37Z
ddc:
- '620'
department:
- _id: '34'
- _id: '3'
- _id: '300'
doi: 10.17619/UNIPB/1-2483
publisher: LibreCat University
status: public
title: Entwicklung einer Augmented Reality basierten Anwendung als Vorbereitungsmaßnahme
zum Laborpraktikum in der Elektrotechnik
type: research_data
user_id: '14972'
year: '2025'
...
---
_id: '63855'
abstract:
- lang: ger
text: Elektronenenergieverlustspektroskopie (engl. EELS) ist eine fortgeschrittene
Analysemethode der Transmissionselektronenmikroskopie, die auf atomarer Ebene
Einblicke in Materialcharakteristika wie bspw. Eigenschaften des Elektronensystems
oder der Materialzusammensetzung erlaubt. Die Genauigkeit jeder EELS-Analyse ist
jedoch fundamental durch Rauschen und Unschärfe begrenzt. Diese Thesis beschreibt
solche Rauschphänomene im Detail. Vor allem bei strahlempfindlichen Materialien,
die kurze Bestrahlzeiten erfordern, aber auch bei Elektron-Materie-Wechselwirkungen
mit geringer Auftrittshäufigkeit, ist eine solche Beschreibung notwendig, da das
Rauschen solche Messungen dominiert. Zusätzlich spielen Korrelationen des Rauschens
eine Rolle, die durch Faltung des verrauschten Signals mit der Punktspreizfunktion
des Detektors entstehen und die sowohl theoretisch als auch experimentell beschrieben
werden. Methoden zur Messung der wichtigsten Rauschparameter bei typischen Detektorsystemen
werden vorgestellt und erlauben es, das Rauschmodel auf jeden beliebigen EELS-Detektor
anzupassen. Eine neue Entfaltungsmethode wird vorgeschlagen, die EELS-Messungen
schärft und entrauscht. Die Wirksamkeit dieser Methode wird an Simulations- und
Experimentaldaten dargelegt. Hierbei wird gezeigt, dass die neue Methode signifikant
bessere Ergebnisse liefert, als bisherige und somit eine Analyse von Messdaten
auf einem Level ermöglicht, das die Möglichkeiten der Elektronenmikroskopie deutlich
erweitert.
- lang: eng
text: Electron energy-loss spectroscopy (EELS) is an advanced analytical technique
in transmission electron microscopy, as it provides insights into material characteristics,
such as electronic properties or elemental composition, at the atomic scale. The
precision of every EELS analysis, however, is inherently limited by noises and
blur. This thesis offers a comprehensive understanding of the noise, which is
particularly valuable at low dwell times necessary for beam sensitive materials
and for electron-matter interactions with low frequency of occurrence, where the
noise dominates the measurement. Additionally, correlations encountered in the
noise of an EELS measurement are described from both a theoretical and experimental
perspective. These correlations are caused by a convolution of the noisy signal
with the detector point spread function. Methods for characterizing key noise
parameters of typical detectors are described, allowing the noise model to be
tailored to any EELS detector. Ultimately, a novel deconvolution method enabling
significant sharpening and denoising of EELS measurements is introduced and demonstrated.
Its efficiency is further validated on both simulation and experimental data.
The described advancement offered by the proposed deconvolution method enables
the extension of current electron microscope capabilities, facilitating analysis
that would be unfeasible with existing deconvolution techniques.
author:
- first_name: Christian
full_name: Zietlow, Christian
id: '77368'
last_name: Zietlow
orcid: https://orcid.org/0000-0001-9696-619X
citation:
ama: Zietlow C. A Novel Lagrangian-Based Method for the Deconvolution of Electron
Energy-Loss Spectra. Universitätsbibliothek Paderborn; 2025. doi:10.17619/UNIPB/1-2438
apa: Zietlow, C. (2025). A novel Lagrangian-based method for the deconvolution
of electron energy-loss spectra. Universitätsbibliothek Paderborn. https://doi.org/10.17619/UNIPB/1-2438
bibtex: '@book{Zietlow_2025, title={A novel Lagrangian-based method for the deconvolution
of electron energy-loss spectra}, DOI={10.17619/UNIPB/1-2438},
publisher={Universitätsbibliothek Paderborn}, author={Zietlow, Christian}, year={2025}
}'
chicago: Zietlow, Christian. A Novel Lagrangian-Based Method for the Deconvolution
of Electron Energy-Loss Spectra. Universitätsbibliothek Paderborn, 2025. https://doi.org/10.17619/UNIPB/1-2438.
ieee: C. Zietlow, A novel Lagrangian-based method for the deconvolution of electron
energy-loss spectra. Universitätsbibliothek Paderborn, 2025.
mla: Zietlow, Christian. A Novel Lagrangian-Based Method for the Deconvolution
of Electron Energy-Loss Spectra. Universitätsbibliothek Paderborn, 2025, doi:10.17619/UNIPB/1-2438.
short: C. Zietlow, A Novel Lagrangian-Based Method for the Deconvolution of Electron
Energy-Loss Spectra, Universitätsbibliothek Paderborn, 2025.
date_created: 2026-02-04T06:54:14Z
date_updated: 2026-04-20T07:42:57Z
department:
- _id: '15'
doi: 10.17619/UNIPB/1-2438
publisher: Universitätsbibliothek Paderborn
status: public
title: A novel Lagrangian-based method for the deconvolution of electron energy-loss
spectra
type: research_data
user_id: '14972'
year: '2025'
...
---
_id: '65466'
author:
- first_name: Fabian
full_name: Bäumer, Fabian
last_name: Bäumer
- first_name: Marcus
full_name: Brinkmann, Marcus
last_name: Brinkmann
- first_name: Maximilian
full_name: Radoy, Maximilian
last_name: Radoy
- first_name: Jörg
full_name: Schwenk, Jörg
last_name: Schwenk
- first_name: Juraj
full_name: Somorovsky, Juraj
last_name: Somorovsky
citation:
ama: 'Bäumer F, Brinkmann M, Radoy M, Schwenk J, Somorovsky J. On the Security of
SSH Client Signatures. In: Proceedings of the 2025 ACM SIGSAC Conference on
Computer and Communications Security. ACM; 2025. doi:10.1145/3719027.3765079'
apa: Bäumer, F., Brinkmann, M., Radoy, M., Schwenk, J., & Somorovsky, J. (2025).
On the Security of SSH Client Signatures. Proceedings of the 2025 ACM SIGSAC
Conference on Computer and Communications Security. https://doi.org/10.1145/3719027.3765079
bibtex: '@inproceedings{Bäumer_Brinkmann_Radoy_Schwenk_Somorovsky_2025, title={On
the Security of SSH Client Signatures}, DOI={10.1145/3719027.3765079},
booktitle={Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications
Security}, publisher={ACM}, author={Bäumer, Fabian and Brinkmann, Marcus and Radoy,
Maximilian and Schwenk, Jörg and Somorovsky, Juraj}, year={2025} }'
chicago: Bäumer, Fabian, Marcus Brinkmann, Maximilian Radoy, Jörg Schwenk, and Juraj
Somorovsky. “On the Security of SSH Client Signatures.” In Proceedings of the
2025 ACM SIGSAC Conference on Computer and Communications Security. ACM, 2025.
https://doi.org/10.1145/3719027.3765079.
ieee: 'F. Bäumer, M. Brinkmann, M. Radoy, J. Schwenk, and J. Somorovsky, “On the
Security of SSH Client Signatures,” 2025, doi: 10.1145/3719027.3765079.'
mla: Bäumer, Fabian, et al. “On the Security of SSH Client Signatures.” Proceedings
of the 2025 ACM SIGSAC Conference on Computer and Communications Security,
ACM, 2025, doi:10.1145/3719027.3765079.
short: 'F. Bäumer, M. Brinkmann, M. Radoy, J. Schwenk, J. Somorovsky, in: Proceedings
of the 2025 ACM SIGSAC Conference on Computer and Communications Security, ACM,
2025.'
date_created: 2026-04-20T13:09:17Z
date_updated: 2026-04-20T13:09:29Z
department:
- _id: '632'
- _id: '632'
doi: 10.1145/3719027.3765079
publication: Proceedings of the 2025 ACM SIGSAC Conference on Computer and Communications
Security
publication_status: published
publisher: ACM
status: public
title: On the Security of SSH Client Signatures
type: conference
user_id: '68826'
year: '2025'
...
---
_id: '65413'
author:
- first_name: P.
full_name: Avramovic, P.
last_name: Avramovic
- first_name: J.
full_name: Quinting, J.
last_name: Quinting
- first_name: S.
full_name: Brassel, S.
last_name: Brassel
- first_name: M.
full_name: Brunner, M.
last_name: Brunner
- first_name: Kristina
full_name: Jonas, Kristina
id: '94540'
last_name: Jonas
orcid: 0000-0002-1067-9139
- first_name: R.
full_name: Rietdijk, R.
last_name: Rietdijk
- first_name: I.
full_name: Rubi-Fessen, I.
last_name: Rubi-Fessen
- first_name: 'P. '
full_name: 'Stenneken, P. '
last_name: Stenneken
- first_name: L.
full_name: Togher, L.
last_name: Togher
citation:
ama: 'Avramovic P, Quinting J, Brassel S, et al. ’Co-CALIBRATE: Developing a Culturally
Sensitive Framework for Adapting ABI Interventions in Diverse Population. In:
4th CCD Symposium, Coventry, UK. ; 2025.'
apa: 'Avramovic, P., Quinting, J., Brassel, S., Brunner, M., Jonas, K., Rietdijk,
R., Rubi-Fessen, I., Stenneken, P., & Togher, L. (2025). ’Co-CALIBRATE: Developing
a Culturally Sensitive Framework for Adapting ABI Interventions in Diverse Population.
4th CCD Symposium, Coventry, UK.'
bibtex: '@inproceedings{Avramovic_Quinting_Brassel_Brunner_Jonas_Rietdijk_Rubi-Fessen_Stenneken_Togher_2025,
title={’Co-CALIBRATE: Developing a Culturally Sensitive Framework for Adapting
ABI Interventions in Diverse Population}, booktitle={4th CCD Symposium, Coventry,
UK.}, author={Avramovic, P. and Quinting, J. and Brassel, S. and Brunner, M. and
Jonas, Kristina and Rietdijk, R. and Rubi-Fessen, I. and Stenneken, P. and Togher,
L.}, year={2025} }'
chicago: 'Avramovic, P., J. Quinting, S. Brassel, M. Brunner, Kristina Jonas, R.
Rietdijk, I. Rubi-Fessen, P. Stenneken, and L. Togher. “’Co-CALIBRATE: Developing
a Culturally Sensitive Framework for Adapting ABI Interventions in Diverse Population.”
In 4th CCD Symposium, Coventry, UK., 2025.'
ieee: 'P. Avramovic et al., “’Co-CALIBRATE: Developing a Culturally Sensitive
Framework for Adapting ABI Interventions in Diverse Population,” 2025.'
mla: 'Avramovic, P., et al. “’Co-CALIBRATE: Developing a Culturally Sensitive Framework
for Adapting ABI Interventions in Diverse Population.” 4th CCD Symposium, Coventry,
UK., 2025.'
short: 'P. Avramovic, J. Quinting, S. Brassel, M. Brunner, K. Jonas, R. Rietdijk,
I. Rubi-Fessen, P. Stenneken, L. Togher, in: 4th CCD Symposium, Coventry, UK.,
2025.'
date_created: 2026-04-13T13:10:22Z
date_updated: 2026-04-20T11:56:11Z
department:
- _id: '5'
- _id: '890'
language:
- iso: eng
publication: 4th CCD Symposium, Coventry, UK.
status: public
title: '''Co-CALIBRATE: Developing a Culturally Sensitive Framework for Adapting ABI
Interventions in Diverse Population'
type: conference
user_id: '61071'
year: '2025'
...
---
_id: '65474'
author:
- first_name: Jeroen
full_name: Rook, Jeroen
id: '102977'
last_name: Rook
- first_name: Manuel
full_name: López-Ibáñez, Manuel
last_name: López-Ibáñez
citation:
ama: 'Rook J, López-Ibáñez M. Advanced Use of Automatic Algorithm Configuration:
Single- and Multi-Objective Approaches. In: Filipic B, ed. Proceedings of the
Genetic and Evolutionary Computation Conference Companion, GECCO 2025, NH Malaga
Hotel, Malaga, Spain, July 14-18, 2025. ACM; 2025:1617–1642. doi:10.1145/3712255.3716537'
apa: 'Rook, J., & López-Ibáñez, M. (2025). Advanced Use of Automatic Algorithm
Configuration: Single- and Multi-Objective Approaches. In B. Filipic (Ed.), Proceedings
of the Genetic and Evolutionary Computation Conference Companion, GECCO 2025,
NH Malaga Hotel, Malaga, Spain, July 14-18, 2025 (pp. 1617–1642). ACM. https://doi.org/10.1145/3712255.3716537'
bibtex: '@inproceedings{Rook_López-Ibáñez_2025, title={Advanced Use of Automatic
Algorithm Configuration: Single- and Multi-Objective Approaches}, DOI={10.1145/3712255.3716537},
booktitle={Proceedings of the Genetic and Evolutionary Computation Conference
Companion, GECCO 2025, NH Malaga Hotel, Malaga, Spain, July 14-18, 2025}, publisher={ACM},
author={Rook, Jeroen and López-Ibáñez, Manuel}, editor={Filipic, Bogdan}, year={2025},
pages={1617–1642} }'
chicago: 'Rook, Jeroen, and Manuel López-Ibáñez. “Advanced Use of Automatic Algorithm
Configuration: Single- and Multi-Objective Approaches.” In Proceedings of the
Genetic and Evolutionary Computation Conference Companion, GECCO 2025, NH Malaga
Hotel, Malaga, Spain, July 14-18, 2025, edited by Bogdan Filipic, 1617–1642.
ACM, 2025. https://doi.org/10.1145/3712255.3716537.'
ieee: 'J. Rook and M. López-Ibáñez, “Advanced Use of Automatic Algorithm Configuration:
Single- and Multi-Objective Approaches,” in Proceedings of the Genetic and
Evolutionary Computation Conference Companion, GECCO 2025, NH Malaga Hotel, Malaga,
Spain, July 14-18, 2025, 2025, pp. 1617–1642, doi: 10.1145/3712255.3716537.'
mla: 'Rook, Jeroen, and Manuel López-Ibáñez. “Advanced Use of Automatic Algorithm
Configuration: Single- and Multi-Objective Approaches.” Proceedings of the
Genetic and Evolutionary Computation Conference Companion, GECCO 2025, NH Malaga
Hotel, Malaga, Spain, July 14-18, 2025, edited by Bogdan Filipic, ACM, 2025,
pp. 1617–1642, doi:10.1145/3712255.3716537.'
short: 'J. Rook, M. López-Ibáñez, in: B. Filipic (Ed.), Proceedings of the Genetic
and Evolutionary Computation Conference Companion, GECCO 2025, NH Malaga Hotel,
Malaga, Spain, July 14-18, 2025, ACM, 2025, pp. 1617–1642.'
date_created: 2026-04-21T11:50:48Z
date_updated: 2026-04-21T11:51:59Z
department:
- _id: '819'
doi: 10.1145/3712255.3716537
editor:
- first_name: Bogdan
full_name: Filipic, Bogdan
last_name: Filipic
language:
- iso: eng
page: 1617–1642
publication: Proceedings of the Genetic and Evolutionary Computation Conference Companion,
GECCO 2025, NH Malaga Hotel, Malaga, Spain, July 14-18, 2025
publisher: ACM
status: public
title: 'Advanced Use of Automatic Algorithm Configuration: Single- and Multi-Objective
Approaches'
type: conference
user_id: '15504'
year: '2025'
...
---
_id: '59088'
abstract:
- lang: eng
text: "This paper deals with the implementation and results of the application of
a multi-stage traffic light control system which includes a simulation-based traffic
estimation and model predictive control.\r\nThe traffic light control system incorporates
a fuzzy system for traffic light phase preselection, followed by a model predictive
control to optimise phase combinations and switching times. Predefined phases
are selected without restrictions in the order according to a multi-objective
optimisation to adapt to the traffic as freely as possible. Initially, the system
is tested in simulations and compared with existing methods and analysed afterwards
for its effectiveness in a prototype commissioning in field tests. Results indicate
high potentials for reducing emissions and waiting times, highlighting the system's
value. However, further refinement is necessary for standard implementation. This
comprehensive approach demonstrates advancements in traffic management technology,
showcasing the potential for enhancing urban mobility and reducing environmental
impact."
author:
- first_name: Kevin
full_name: Malena, Kevin
id: '36303'
last_name: Malena
orcid: 0000-0003-1183-4679
- first_name: Christopher
full_name: Link, Christopher
id: '38249'
last_name: Link
- first_name: Sandra
full_name: Gausemeier, Sandra
id: '17793'
last_name: Gausemeier
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
citation:
ama: 'Malena K, Link C, Gausemeier S, Trächtler A. Implementation and Results of
a Multi-Stage Model Predictive Traffic Light Control System. In: 2024 IEEE
27th International Conference on Intelligent Transportation Systems (ITSC).
Vol 27. IEEE; 2025. doi:10.1109/itsc58415.2024.10919569'
apa: Malena, K., Link, C., Gausemeier, S., & Trächtler, A. (2025). Implementation
and Results of a Multi-Stage Model Predictive Traffic Light Control System. 2024
IEEE 27th International Conference on Intelligent Transportation Systems (ITSC),
27. https://doi.org/10.1109/itsc58415.2024.10919569
bibtex: '@inproceedings{Malena_Link_Gausemeier_Trächtler_2025, title={Implementation
and Results of a Multi-Stage Model Predictive Traffic Light Control System}, volume={27},
DOI={10.1109/itsc58415.2024.10919569},
booktitle={2024 IEEE 27th International Conference on Intelligent Transportation
Systems (ITSC)}, publisher={IEEE}, author={Malena, Kevin and Link, Christopher
and Gausemeier, Sandra and Trächtler, Ansgar}, year={2025} }'
chicago: Malena, Kevin, Christopher Link, Sandra Gausemeier, and Ansgar Trächtler.
“Implementation and Results of a Multi-Stage Model Predictive Traffic Light Control
System.” In 2024 IEEE 27th International Conference on Intelligent Transportation
Systems (ITSC), Vol. 27. IEEE, 2025. https://doi.org/10.1109/itsc58415.2024.10919569.
ieee: 'K. Malena, C. Link, S. Gausemeier, and A. Trächtler, “Implementation and
Results of a Multi-Stage Model Predictive Traffic Light Control System,” in 2024
IEEE 27th International Conference on Intelligent Transportation Systems (ITSC),
Edmonton (Canada), 2025, vol. 27, doi: 10.1109/itsc58415.2024.10919569.'
mla: Malena, Kevin, et al. “Implementation and Results of a Multi-Stage Model Predictive
Traffic Light Control System.” 2024 IEEE 27th International Conference on Intelligent
Transportation Systems (ITSC), vol. 27, IEEE, 2025, doi:10.1109/itsc58415.2024.10919569.
short: 'K. Malena, C. Link, S. Gausemeier, A. Trächtler, in: 2024 IEEE 27th International
Conference on Intelligent Transportation Systems (ITSC), IEEE, 2025.'
conference:
end_date: 2024-09-27
location: Edmonton (Canada)
name: 27th International Conference on Intelligent Transportation Systems (ITSC)
start_date: 2024-09-24
date_created: 2025-03-24T08:57:08Z
date_updated: 2026-04-29T08:49:46Z
department:
- _id: '153'
doi: 10.1109/itsc58415.2024.10919569
intvolume: ' 27'
keyword:
- MPC
language:
- iso: eng
publication: 2024 IEEE 27th International Conference on Intelligent Transportation
Systems (ITSC)
publication_identifier:
issn:
- 2153-0017
publication_status: published
publisher: IEEE
quality_controlled: '1'
related_material:
link:
- relation: confirmation
url: https://ieeexplore.ieee.org/document/10919569
status: public
title: Implementation and Results of a Multi-Stage Model Predictive Traffic Light
Control System
type: conference
user_id: '36303'
volume: 27
year: '2025'
...
---
_id: '59895'
abstract:
- lang: eng
text: The generation of optically broadband Nyquist pulse sequences using an integrated
Mach-Zehnder modulator (MZM) in a thin-film lithium-niobate (TFLN) platform with
repetition rates of 5 to 32 GHz and optical bandwidths of up to 160 GHz is demonstrated.
Nyquist pulse sequences with high optical bandwidth can be used as synchronization
and control signals in quantum sources based on photon pair generation.
author:
- first_name: Christian
full_name: Kress, Christian
id: '13256'
last_name: Kress
orcid: 0000-0002-4403-2237
- first_name: Martin Miroslavov
full_name: Mihaylov, Martin Miroslavov
id: '42449'
last_name: Mihaylov
- first_name: Tobias
full_name: Schwabe, Tobias
id: '39217'
last_name: Schwabe
- first_name: Christine
full_name: Silberhorn, Christine
id: '26263'
last_name: Silberhorn
- first_name: J. Christoph
full_name: Scheytt, J. Christoph
id: '37144'
last_name: Scheytt
orcid: '0000-0002-5950-6618 '
citation:
ama: 'Kress C, Mihaylov MM, Schwabe T, Silberhorn C, Scheytt JC. Broadband Nyquist
Pulse Generation on TFLN Platform for Integrated Quantum Source. In: PIERS
Proceedings . PhotonIcs and Electromagnetics Research Symposium (PIERS). doi:10.1109/PIERS-Spring66516.2025.11276835'
apa: Kress, C., Mihaylov, M. M., Schwabe, T., Silberhorn, C., & Scheytt, J.
C. (n.d.). Broadband Nyquist Pulse Generation on TFLN Platform for Integrated
Quantum Source. PIERS Proceedings . PhotonIcs and Electromagnetics Research
Symposium (PIERS), Abu Dhabi. https://doi.org/10.1109/PIERS-Spring66516.2025.11276835
bibtex: '@inproceedings{Kress_Mihaylov_Schwabe_Silberhorn_Scheytt, title={Broadband
Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source}, DOI={10.1109/PIERS-Spring66516.2025.11276835},
booktitle={PIERS Proceedings }, publisher={PhotonIcs and Electromagnetics Research
Symposium (PIERS)}, author={Kress, Christian and Mihaylov, Martin Miroslavov and
Schwabe, Tobias and Silberhorn, Christine and Scheytt, J. Christoph} }'
chicago: Kress, Christian, Martin Miroslavov Mihaylov, Tobias Schwabe, Christine
Silberhorn, and J. Christoph Scheytt. “Broadband Nyquist Pulse Generation on TFLN
Platform for Integrated Quantum Source.” In PIERS Proceedings . PhotonIcs
and Electromagnetics Research Symposium (PIERS), n.d. https://doi.org/10.1109/PIERS-Spring66516.2025.11276835.
ieee: 'C. Kress, M. M. Mihaylov, T. Schwabe, C. Silberhorn, and J. C. Scheytt, “Broadband
Nyquist Pulse Generation on TFLN Platform for Integrated Quantum Source,” presented
at the PhotonIcs and Electromagnetics Research Symposium (PIERS), Abu Dhabi, doi:
10.1109/PIERS-Spring66516.2025.11276835.'
mla: Kress, Christian, et al. “Broadband Nyquist Pulse Generation on TFLN Platform
for Integrated Quantum Source.” PIERS Proceedings , PhotonIcs and Electromagnetics
Research Symposium (PIERS), doi:10.1109/PIERS-Spring66516.2025.11276835.
short: 'C. Kress, M.M. Mihaylov, T. Schwabe, C. Silberhorn, J.C. Scheytt, in: PIERS
Proceedings , PhotonIcs and Electromagnetics Research Symposium (PIERS), n.d.'
conference:
end_date: 2025-05-09
location: Abu Dhabi
name: PhotonIcs and Electromagnetics Research Symposium (PIERS)
start_date: 2025-05-03
date_created: 2025-05-14T09:59:50Z
date_updated: 2026-04-29T14:27:08Z
department:
- _id: '58'
- _id: '623'
doi: 10.1109/PIERS-Spring66516.2025.11276835
language:
- iso: eng
project:
- _id: '302'
name: 'PONyDAC: SPP 2111 - PONyDAC II - Präziser Optischer Nyquist-Puls-Synthesizer
DAC'
- _id: '175'
name: 'TRR 142 - C11: TRR 142 - Kompakte Photonenpaar-Quelle mit ultraschnellen
Modulatoren auf Basis von CMOS und LNOI (C11*)'
publication: 'PIERS Proceedings '
publication_status: accepted
publisher: PhotonIcs and Electromagnetics Research Symposium (PIERS)
status: public
title: Broadband Nyquist Pulse Generation on TFLN Platform for Integrated Quantum
Source
type: conference
user_id: '13256'
year: '2025'
...
---
_id: '61778'
abstract:
- lang: eng
text: "Understanding the entanglement structure of local Hamiltonian ground spaces\r\nis
a physically motivated problem, with applications ranging from tensor\r\nnetwork
design to quantum error-correcting codes. To this end, we study the\r\ncomplexity
of estimating ground state entanglement, and more generally entropy\r\nestimation
for low energy states and Gibbs states. We find, in particular, that\r\nthe classes
qq-QAM [Kobayashi, le Gall, Nishimura, SICOMP 2019] (a quantum\r\nanalogue of
public-coin AM) and QMA(2) (QMA with unentangled proofs) play a\r\ncrucial role
for such problems, showing: (1) Detecting a high-entanglement\r\nground state
is qq-QAM-complete, (2) computing an additive error approximation\r\nto the Helmholtz
free energy (equivalently, a multiplicative error\r\napproximation to the partition
function) is in qq-QAM, (3) detecting a\r\nlow-entanglement ground state is QMA(2)-hard,
and (4) detecting low energy\r\nstates which are close to product states can range
from QMA-complete to\r\nQMA(2)-complete. Our results make progress on an open
question of [Bravyi,\r\nChowdhury, Gosset and Wocjan, Nature Physics 2022] on
free energy, and yield\r\nthe first QMA(2)-complete Hamiltonian problem using
local Hamiltonians (cf. the\r\nsparse QMA(2)-complete Hamiltonian problem of [Chailloux,
Sattath, CCC 2012])."
author:
- first_name: Sevag
full_name: Gharibian, Sevag
id: '71541'
last_name: Gharibian
orcid: 0000-0002-9992-3379
- first_name: Jonas
full_name: Kamminga, Jonas
last_name: Kamminga
citation:
ama: Gharibian S, Kamminga J. On the complexity of estimating ground state entanglement
and free energy. arXiv:251006796. Published online 2025.
apa: Gharibian, S., & Kamminga, J. (2025). On the complexity of estimating ground
state entanglement and free energy. In arXiv:2510.06796.
bibtex: '@article{Gharibian_Kamminga_2025, title={On the complexity of estimating
ground state entanglement and free energy}, journal={arXiv:2510.06796}, author={Gharibian,
Sevag and Kamminga, Jonas}, year={2025} }'
chicago: Gharibian, Sevag, and Jonas Kamminga. “On the Complexity of Estimating
Ground State Entanglement and Free Energy.” ArXiv:2510.06796, 2025.
ieee: S. Gharibian and J. Kamminga, “On the complexity of estimating ground state
entanglement and free energy,” arXiv:2510.06796. 2025.
mla: Gharibian, Sevag, and Jonas Kamminga. “On the Complexity of Estimating Ground
State Entanglement and Free Energy.” ArXiv:2510.06796, 2025.
short: S. Gharibian, J. Kamminga, ArXiv:2510.06796 (2025).
date_created: 2025-10-10T13:45:28Z
date_updated: 2026-04-30T14:08:44Z
department:
- _id: '7'
- _id: '623'
external_id:
arxiv:
- '2510.06796'
language:
- iso: eng
publication: arXiv:2510.06796
status: public
title: On the complexity of estimating ground state entanglement and free energy
type: preprint
user_id: '71541'
year: '2025'
...
---
_id: '62108'
author:
- first_name: Lars
full_name: Luchterhandt, Lars
last_name: Luchterhandt
- first_name: Vivek
full_name: Govindasamy, Vivek
last_name: Govindasamy
- first_name: Yutong
full_name: Wang, Yutong
last_name: Wang
- first_name: Christoph
full_name: Scheytt, Christoph
last_name: Scheytt
- first_name: Wolfgang
full_name: Mueller, Wolfgang
last_name: Mueller
- first_name: Rainer
full_name: Dömer, Rainer
last_name: Dömer
citation:
ama: 'Luchterhandt L, Govindasamy V, Wang Y, Scheytt C, Mueller W, Dömer R. A Quantitative
Guide to Navigate Speed/Accuracy Tradeoffs in System Level Design of RISC-V Processor
Grids. In: 2025 Forum on Specification & Design Languages (FDL). IEEE;
2025. doi:10.1109/fdl68117.2025.11165408'
apa: Luchterhandt, L., Govindasamy, V., Wang, Y., Scheytt, C., Mueller, W., &
Dömer, R. (2025). A Quantitative Guide to Navigate Speed/Accuracy Tradeoffs in
System Level Design of RISC-V Processor Grids. 2025 Forum on Specification
& Design Languages (FDL). https://doi.org/10.1109/fdl68117.2025.11165408
bibtex: '@inproceedings{Luchterhandt_Govindasamy_Wang_Scheytt_Mueller_Dömer_2025,
title={A Quantitative Guide to Navigate Speed/Accuracy Tradeoffs in System Level
Design of RISC-V Processor Grids}, DOI={10.1109/fdl68117.2025.11165408},
booktitle={2025 Forum on Specification & Design Languages (FDL)}, publisher={IEEE},
author={Luchterhandt, Lars and Govindasamy, Vivek and Wang, Yutong and Scheytt,
Christoph and Mueller, Wolfgang and Dömer, Rainer}, year={2025} }'
chicago: Luchterhandt, Lars, Vivek Govindasamy, Yutong Wang, Christoph Scheytt,
Wolfgang Mueller, and Rainer Dömer. “A Quantitative Guide to Navigate Speed/Accuracy
Tradeoffs in System Level Design of RISC-V Processor Grids.” In 2025 Forum
on Specification & Design Languages (FDL). IEEE, 2025. https://doi.org/10.1109/fdl68117.2025.11165408.
ieee: 'L. Luchterhandt, V. Govindasamy, Y. Wang, C. Scheytt, W. Mueller, and R.
Dömer, “A Quantitative Guide to Navigate Speed/Accuracy Tradeoffs in System Level
Design of RISC-V Processor Grids,” 2025, doi: 10.1109/fdl68117.2025.11165408.'
mla: Luchterhandt, Lars, et al. “A Quantitative Guide to Navigate Speed/Accuracy
Tradeoffs in System Level Design of RISC-V Processor Grids.” 2025 Forum on
Specification & Design Languages (FDL), IEEE, 2025, doi:10.1109/fdl68117.2025.11165408.
short: 'L. Luchterhandt, V. Govindasamy, Y. Wang, C. Scheytt, W. Mueller, R. Dömer,
in: 2025 Forum on Specification & Design Languages (FDL), IEEE, 2025.'
date_created: 2025-11-06T09:47:40Z
date_updated: 2026-05-08T09:12:31Z
department:
- _id: '58'
doi: 10.1109/fdl68117.2025.11165408
language:
- iso: eng
publication: 2025 Forum on Specification & Design Languages (FDL)
publication_status: published
publisher: IEEE
status: public
title: A Quantitative Guide to Navigate Speed/Accuracy Tradeoffs in System Level Design
of RISC-V Processor Grids
type: conference
user_id: '16243'
year: '2025'
...
---
_id: '65559'
abstract:
- lang: ger
text: Dieser Artikel spiegelt die dreißigjährige Geschichte der Zeitschrift Tertium
Comparationis, indem er eine der zentralen Vergleichseinheiten Vergleichender
Erziehungswissenschaft in den Blick nimmt. Themenhefte und Einzelbeiträge der
Zeitschrift Tertium Comparationis haben über die Jahrzehnte immer wieder reflexive
Blicke auf die Vergleichseinheit Land und/oder Nation geworfen, aber auch – ohne
Bezüge zu solchen Diskursen – Länder- und Nationenvergleiche in unterschiedlichen
Vorgehensweisen präsentiert. Bei der intensiven und analytischen Lektüre der Themen
und Inhalte ergeben sich Cluster der Perspektivsetzungen und damit verbundene
Diskurse, von denen einige aufgrund ihrer Häufigkeit und Intensität besonders
relevant erscheinen. Die aufzufindenden Diskurse und Cluster werden im Beitrag
präsentiert und anhand normativer, kritischer und innovativer Beiträge verifiziert.
Trotz konstant wiederholter Kritik und konzeptueller Änderungen, bleiben Land
und Nation zentrale Kategorien Vergleichender Erziehungswissenschaft.
author:
- first_name: Christine
full_name: Freitag, Christine
id: '20560'
last_name: Freitag
citation:
ama: 'Freitag C. Land und Nation: Perspektiven vergleichender Forschung in ausgewählten
Diskursen der Zeitschrift Tertium Comparationis. Tertium Comparationis.
2025;31(2):156-167. doi:10.31244/tc.2025.02.02'
apa: 'Freitag, C. (2025). Land und Nation: Perspektiven vergleichender Forschung
in ausgewählten Diskursen der Zeitschrift Tertium Comparationis. Tertium Comparationis,
31(2), 156–167. https://doi.org/10.31244/tc.2025.02.02'
bibtex: '@article{Freitag_2025, title={Land und Nation: Perspektiven vergleichender
Forschung in ausgewählten Diskursen der Zeitschrift Tertium Comparationis}, volume={31},
DOI={10.31244/tc.2025.02.02},
number={2}, journal={Tertium Comparationis}, publisher={Waxmann}, author={Freitag,
Christine}, year={2025}, pages={156–167} }'
chicago: 'Freitag, Christine. “Land und Nation: Perspektiven vergleichender Forschung
in ausgewählten Diskursen der Zeitschrift Tertium Comparationis.” Tertium
Comparationis 31, no. 2 (2025): 156–67. https://doi.org/10.31244/tc.2025.02.02.'
ieee: 'C. Freitag, “Land und Nation: Perspektiven vergleichender Forschung in ausgewählten
Diskursen der Zeitschrift Tertium Comparationis,” Tertium Comparationis,
vol. 31, no. 2, pp. 156–167, 2025, doi: 10.31244/tc.2025.02.02.'
mla: 'Freitag, Christine. “Land und Nation: Perspektiven vergleichender Forschung
in ausgewählten Diskursen der Zeitschrift Tertium Comparationis.” Tertium
Comparationis, vol. 31, no. 2, Waxmann, 2025, pp. 156–67, doi:10.31244/tc.2025.02.02.'
short: C. Freitag, Tertium Comparationis 31 (2025) 156–167.
date_created: 2026-05-05T12:12:35Z
date_updated: 2026-05-08T11:47:40Z
department:
- _id: '453'
doi: 10.31244/tc.2025.02.02
intvolume: ' 31'
issue: '2'
keyword:
- Tertium Comparationis
- Land
- Nation
- Vergleichende Erziehungswissenschaft
- Diskurse
language:
- iso: ger
main_file_link:
- open_access: '1'
url: https://www.waxmann.com/shop/download?tx_p2waxmann_download%5Baction%5D=download&tx_p2waxmann_download%5Bcontroller%5D=Zeitschrift&tx_p2waxmann_download%5Bid_artikel%5D=ART106580&tx_p2waxmann_download%5Buid%5D=frei&cHash=8bebe3e88a1eab177e7c65196dbb1715
oa: '1'
page: 156-167
publication: Tertium Comparationis
publication_identifier:
issn:
- 0947-9732
- 1434-1697
publication_status: published
publisher: Waxmann
status: public
title: 'Land und Nation: Perspektiven vergleichender Forschung in ausgewählten Diskursen
der Zeitschrift Tertium Comparationis'
type: journal_article
user_id: '10831'
volume: 31
year: '2025'
...
---
_id: '59671'
author:
- first_name: Mohammed
full_name: Abdelrahem, Mohammed
id: '95179'
last_name: Abdelrahem
orcid: 0000-0002-0545-9799
citation:
ama: Abdelrahem M. Die Menschheitsfamilie und der Begriff der Umma – Islamische
Perspektiven im interreligiösen Dialog. Zekk-Bolg; 2025.
apa: Abdelrahem, M. (2025). Die Menschheitsfamilie und der Begriff der Umma –
Islamische Perspektiven im interreligiösen Dialog. Zekk-Bolg.
bibtex: '@book{Abdelrahem_2025, place={Paderborn}, title={Die Menschheitsfamilie
und der Begriff der Umma – Islamische Perspektiven im interreligiösen Dialog},
publisher={Zekk-Bolg}, author={Abdelrahem, Mohammed}, year={2025} }'
chicago: 'Abdelrahem, Mohammed. Die Menschheitsfamilie und der Begriff der Umma
– Islamische Perspektiven im interreligiösen Dialog. Paderborn: Zekk-Bolg,
2025.'
ieee: 'M. Abdelrahem, Die Menschheitsfamilie und der Begriff der Umma – Islamische
Perspektiven im interreligiösen Dialog. Paderborn: Zekk-Bolg, 2025.'
mla: Abdelrahem, Mohammed. Die Menschheitsfamilie und der Begriff der Umma –
Islamische Perspektiven im interreligiösen Dialog. Zekk-Bolg, 2025.
short: M. Abdelrahem, Die Menschheitsfamilie und der Begriff der Umma – Islamische
Perspektiven im interreligiösen Dialog, Zekk-Bolg, Paderborn, 2025.
date_created: 2025-04-25T00:06:45Z
date_updated: 2026-05-08T13:34:20Z
department:
- _id: '469'
language:
- iso: ger
main_file_link:
- url: https://blogs.uni-paderborn.de/zekkblog/2025/04/18/die-menschheitsfamilie-und-der-begriff-der-umma-islamische-perspektiven-im-interreligioesen-dialog/
place: Paderborn
publisher: Zekk-Bolg
status: public
title: Die Menschheitsfamilie und der Begriff der Umma – Islamische Perspektiven im
interreligiösen Dialog
type: misc
user_id: '95179'
year: '2025'
...
---
_id: '60942'
abstract:
- lang: ger
text: BloKK-Beitrag für das ZeKK, 11.07.2025
author:
- first_name: Sarah
full_name: Lebock, Sarah
id: '53425'
last_name: Lebock
orcid: 0009-0005-7485-1902
citation:
ama: Lebock S. “Komparative Theologie und Soziale Arbeit?!”; 2025.
apa: Lebock, S. (2025). “Komparative Theologie und Soziale Arbeit?!”
bibtex: '@book{Lebock_2025, place={BloKK-Beitrag für das ZeKK, 11.07.2025}, title={“Komparative
Theologie und Soziale Arbeit?!”}, author={Lebock, Sarah}, year={2025} }'
chicago: Lebock, Sarah. “Komparative Theologie und Soziale Arbeit?!” BloKK-Beitrag
für das ZeKK, 11.07.2025, 2025.
ieee: S. Lebock, “Komparative Theologie und Soziale Arbeit?!” BloKK-Beitrag
für das ZeKK, 11.07.2025, 2025.
mla: Lebock, Sarah. “Komparative Theologie und Soziale Arbeit?!” 2025.
short: S. Lebock, “Komparative Theologie und Soziale Arbeit?!,” BloKK-Beitrag für
das ZeKK, 11.07.2025, 2025.
date_created: 2025-08-19T01:09:06Z
date_updated: 2026-05-10T12:10:04Z
department:
- _id: '550'
language:
- iso: ger
place: BloKK-Beitrag für das ZeKK, 11.07.2025
related_material:
link:
- relation: confirmation
url: https://blogs.uni-paderborn.de/zekkblog/2025/07/11/komparative-theologie-und-soziale-arbeit/
status: public
title: '"Komparative Theologie und Soziale Arbeit?!"'
type: misc
user_id: '53425'
year: '2025'
...
---
_id: '58807'
abstract:
- lang: eng
text: "One of the most important strategies for reducing CO2 emissions in the mobility
sector is lightweight construction. In particular, the car body offers several
opportunities for weight reduction. Multi-material designs are increasingly being
applied to select the most suitable material for the respective load and ultimately
achieve synergy effects. For example, aluminium castings are used at the nodes
of a spaceframe body. Subsequently, these are joined with profiles to form the
bodyshell. To join different materials mechanical joining techniques, such as
semi-tubular self-piercing riveting, are deployed. According to the current state
of the art, cracks occur in the aluminium castings during the mechanical joining
process as a result of the high degree of deformation. Although the aluminium
casting alloys of the AlSi-system exhibit low ductility, these alloys reveal excellent
castability. In particular, the ability to cast thin structural parts is enabled
by the low liquidus point of the near eutectic aluminium casting alloys.\r\nThis
study addresses the mechanical joining properties of the near eutectic aluminium
casting alloy AlSi12, depending on different microstructures. These are achieved
by annealing processes and modifying agents. Through an adapted heat treatment,
the previously lamellar morphology can be transformed into a globular morphology,
which leads to increased ductility and prevents the formation of cracks during
the self-piercing riveting (SPR). The joinability is investigated using different
die geometries, whereas the joint formation is analysed regarding crack initiation.
To evaluate the increased ductility, microstructural and mechanical tests are
performed and finally, a microstructure-joinability correlation is established."
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Pia Katharina
full_name: Holtkamp, Pia Katharina
id: '44935'
last_name: Holtkamp
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Fabian
full_name: Kappe, Fabian
id: '66459'
last_name: Kappe
- first_name: Safak
full_name: Yildiz, Safak
last_name: Yildiz
- 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: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'Neuser M, Holtkamp PK, Hoyer K-P, et al. Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. Published online 2025. doi:10.1177/14644207251319922'
apa: 'Neuser, M., Holtkamp, P. K., Hoyer, K.-P., Kappe, F., Yildiz, S., Bobbert,
M., Meschut, G., & Schaper, M. (2025). Mechanical properties and joinability
of the near-eutectic aluminium casting alloy AlSi12. The Journal of Materials:
Design and Applications, Part L. 5th International Conference on Materials
Design and Applications 2024, Porto, Portugal. https://doi.org/10.1177/14644207251319922'
bibtex: '@article{Neuser_Holtkamp_Hoyer_Kappe_Yildiz_Bobbert_Meschut_Schaper_2025,
title={Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12}, DOI={10.1177/14644207251319922},
journal={The Journal of Materials: Design and Applications, Part L}, publisher={Sage
Publications}, author={Neuser, Moritz and Holtkamp, Pia Katharina and Hoyer, Kay-Peter
and Kappe, Fabian and Yildiz, Safak and Bobbert, Mathias and Meschut, Gerson and
Schaper, Mirko}, year={2025} }'
chicago: 'Neuser, Moritz, Pia Katharina Holtkamp, Kay-Peter Hoyer, Fabian Kappe,
Safak Yildiz, Mathias Bobbert, Gerson Meschut, and Mirko Schaper. “Mechanical
Properties and Joinability of the Near-Eutectic Aluminium Casting Alloy AlSi12.”
The Journal of Materials: Design and Applications, Part L, 2025. https://doi.org/10.1177/14644207251319922.'
ieee: 'M. Neuser et al., “Mechanical properties and joinability of the near-eutectic
aluminium casting alloy AlSi12,” The Journal of Materials: Design and Applications,
Part L, 2025, doi: 10.1177/14644207251319922.'
mla: 'Neuser, Moritz, et al. “Mechanical Properties and Joinability of the Near-Eutectic
Aluminium Casting Alloy AlSi12.” The Journal of Materials: Design and Applications,
Part L, Sage Publications, 2025, doi:10.1177/14644207251319922.'
short: 'M. Neuser, P.K. Holtkamp, K.-P. Hoyer, F. Kappe, S. Yildiz, M. Bobbert,
G. Meschut, M. Schaper, The Journal of Materials: Design and Applications, Part
L (2025).'
conference:
end_date: 2024-07-05
location: Porto, Portugal
name: 5th International Conference on Materials Design and Applications 2024
start_date: 2024-07-04
date_created: 2025-02-24T10:25:31Z
date_updated: 2026-05-12T12:13:31Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1177/14644207251319922
has_accepted_license: '1'
keyword:
- aluminium
- casting
- microstructure
- joinability
- self-piercing riveting
language:
- iso: eng
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _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: 'The Journal of Materials: Design and Applications, Part L'
publication_status: published
publisher: Sage Publications
quality_controlled: '1'
status: public
title: Mechanical properties and joinability of the near-eutectic aluminium casting
alloy AlSi12
type: journal_article
user_id: '7850'
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: 2026-05-12T12:12:36Z
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
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: '7850'
volume: 52
year: '2025'
...
---
_id: '63662'
abstract:
- lang: eng
text: The accurate prediction of crack initiation and propagation is essential for
assessing the structural integrity of mechanically joined components and other
complex assemblies. To overcome the limitations of existing finite element tools,
a modular Python framework has been developed to automate three-dimensional crack
growth simulations. The program combines geometric reconstruction, adaptive remeshing,
and the numerical evaluation of fracture mechanics parameters within a single,
fully automated workflow. The framework builds on open-source components and remains
solver-independent, enabling straightforward integration with commercial or research
finite element codes. A dedicated sequence of modules performs all required steps,
from mesh separation and crack insertion to local submodeling, stress and displacement
mapping, and iterative crack-front update, without manual interaction. The methodology
was verified using a mini-compact tension (Mini-CT) specimen as a benchmark case.
The numerical results demonstrate the accurate reproduction of stress intensity
factors and energy release rates while achieving high computational efficiency
through localized refinement. The developed approach provides a robust basis for
crack growth simulations of geometrically complex or residual stress-affected
structures. Its high degree of automation and flexibility makes it particularly
suited for analyzing cracks in clinched and riveted joints, supporting the predictive
design and durability assessment of joined lightweight structures.
article_number: '384'
author:
- first_name: Sven
full_name: Krome, Sven
id: '57245'
last_name: Krome
- first_name: Tobias
full_name: Duffe, Tobias
id: '41322'
last_name: Duffe
- first_name: Gunter
full_name: Kullmer, Gunter
id: '291'
last_name: Kullmer
- first_name: Britta
full_name: Schramm, Britta
id: '4668'
last_name: Schramm
- first_name: Richard
full_name: Ostwald, Richard
id: '106876'
last_name: Ostwald
orcid: 0000-0003-2147-8444
citation:
ama: Krome S, Duffe T, Kullmer G, Schramm B, Ostwald R. Validation and Verification
of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D. Applied
Sciences. 2025;16(1). doi:10.3390/app16010384
apa: Krome, S., Duffe, T., Kullmer, G., Schramm, B., & Ostwald, R. (2025). Validation
and Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D.
Applied Sciences, 16(1), Article 384. https://doi.org/10.3390/app16010384
bibtex: '@article{Krome_Duffe_Kullmer_Schramm_Ostwald_2025, title={Validation and
Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D},
volume={16}, DOI={10.3390/app16010384},
number={1384}, journal={Applied Sciences}, publisher={MDPI AG}, author={Krome,
Sven and Duffe, Tobias and Kullmer, Gunter and Schramm, Britta and Ostwald, Richard},
year={2025} }'
chicago: Krome, Sven, Tobias Duffe, Gunter Kullmer, Britta Schramm, and Richard
Ostwald. “Validation and Verification of Novel Three-Dimensional Crack Growth
Simulation Software GmshCrack3D.” Applied Sciences 16, no. 1 (2025). https://doi.org/10.3390/app16010384.
ieee: 'S. Krome, T. Duffe, G. Kullmer, B. Schramm, and R. Ostwald, “Validation and
Verification of Novel Three-Dimensional Crack Growth Simulation Software GmshCrack3D,”
Applied Sciences, vol. 16, no. 1, Art. no. 384, 2025, doi: 10.3390/app16010384.'
mla: Krome, Sven, et al. “Validation and Verification of Novel Three-Dimensional
Crack Growth Simulation Software GmshCrack3D.” Applied Sciences, vol. 16,
no. 1, 384, MDPI AG, 2025, doi:10.3390/app16010384.
short: S. Krome, T. Duffe, G. Kullmer, B. Schramm, R. Ostwald, Applied Sciences
16 (2025).
date_created: 2026-01-20T08:47:40Z
date_updated: 2026-05-12T12:46:22Z
department:
- _id: '9'
- _id: '952'
- _id: '321'
doi: 10.3390/app16010384
intvolume: ' 16'
issue: '1'
language:
- iso: eng
project:
- _id: '132'
name: TRR 285 - Project Area B
- _id: '143'
name: TRR 285 - Subproject B04
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: Applied Sciences
publication_identifier:
issn:
- 2076-3417
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Validation and Verification of Novel Three-Dimensional Crack Growth Simulation
Software GmshCrack3D
type: journal_article
user_id: '7850'
volume: 16
year: '2025'
...
---
_id: '62172'
author:
- first_name: Stephan Matthias
full_name: Kokew, Stephan Matthias
id: '111362'
last_name: Kokew
orcid: 0009-0005-6980-2727
- first_name: Raid
full_name: Al-Daghistani, Raid
last_name: Al-Daghistani
citation:
ama: 'Kokew SM, Al-Daghistani R. Bericht: Ressourcen für Resilienz in islamischer
Tradition. Theologische, ethische und mystische Perspektiven. Cibedo-Beiträge.
2025;2/2025:88–89.'
apa: 'Kokew, S. M., & Al-Daghistani, R. (2025). Bericht: Ressourcen für Resilienz
in islamischer Tradition. Theologische, ethische und mystische Perspektiven. Cibedo-Beiträge,
2/2025, 88–89.'
bibtex: '@article{Kokew_Al-Daghistani_2025, title={Bericht: Ressourcen für Resilienz
in islamischer Tradition. Theologische, ethische und mystische Perspektiven},
volume={2/2025}, journal={Cibedo-Beiträge}, publisher={Aschendorff}, author={Kokew,
Stephan Matthias and Al-Daghistani, Raid}, year={2025}, pages={88–89.} }'
chicago: 'Kokew, Stephan Matthias, and Raid Al-Daghistani. “Bericht: Ressourcen
für Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven.”
Cibedo-Beiträge 2/2025 (2025): 88–89.'
ieee: 'S. M. Kokew and R. Al-Daghistani, “Bericht: Ressourcen für Resilienz in islamischer
Tradition. Theologische, ethische und mystische Perspektiven,” Cibedo-Beiträge,
vol. 2/2025, pp. 88–89., 2025.'
mla: 'Kokew, Stephan Matthias, and Raid Al-Daghistani. “Bericht: Ressourcen für
Resilienz in islamischer Tradition. Theologische, ethische und mystische Perspektiven.”
Cibedo-Beiträge, vol. 2/2025, Aschendorff, 2025, pp. 88–89.'
short: S.M. Kokew, R. Al-Daghistani, Cibedo-Beiträge 2/2025 (2025) 88–89.
date_created: 2025-11-12T21:25:04Z
date_updated: 2026-05-12T13:41:38Z
department:
- _id: '469'
language:
- iso: ger
page: 88–89.
popular_science: '1'
publication: Cibedo-Beiträge
publication_identifier:
issn:
- 1864-9483
publication_status: published
publisher: Aschendorff
status: public
title: 'Bericht: Ressourcen für Resilienz in islamischer Tradition. Theologische,
ethische und mystische Perspektiven'
type: journal_article
user_id: '111362'
volume: 2/2025
year: '2025'
...
---
_id: '65618'
author:
- first_name: Mika
full_name: Bröker, Mika
last_name: Bröker
- first_name: Johannes
full_name: Menzel, Johannes
last_name: Menzel
- first_name: Christian
full_name: Plessl, Christian
id: '16153'
last_name: Plessl
orcid: 0000-0001-5728-9982
citation:
ama: 'Bröker M, Menzel J, Plessl C. Evaluating the Strong Scaling Potential of AI
Engines for Molecular Dynamics Simulations. In: Proceedings of the 15th International
Symposium on Highly Efficient Accelerators and Reconfigurable Technologies.
ACM; 2025. doi:10.1145/3728179.3728187'
apa: Bröker, M., Menzel, J., & Plessl, C. (2025). Evaluating the Strong Scaling
Potential of AI Engines for Molecular Dynamics Simulations. Proceedings of
the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable
Technologies. https://doi.org/10.1145/3728179.3728187
bibtex: '@inproceedings{Bröker_Menzel_Plessl_2025, title={Evaluating the Strong
Scaling Potential of AI Engines for Molecular Dynamics Simulations}, DOI={10.1145/3728179.3728187},
booktitle={Proceedings of the 15th International Symposium on Highly Efficient
Accelerators and Reconfigurable Technologies}, publisher={ACM}, author={Bröker,
Mika and Menzel, Johannes and Plessl, Christian}, year={2025} }'
chicago: Bröker, Mika, Johannes Menzel, and Christian Plessl. “Evaluating the Strong
Scaling Potential of AI Engines for Molecular Dynamics Simulations.” In Proceedings
of the 15th International Symposium on Highly Efficient Accelerators and Reconfigurable
Technologies. ACM, 2025. https://doi.org/10.1145/3728179.3728187.
ieee: 'M. Bröker, J. Menzel, and C. Plessl, “Evaluating the Strong Scaling Potential
of AI Engines for Molecular Dynamics Simulations,” 2025, doi: 10.1145/3728179.3728187.'
mla: Bröker, Mika, et al. “Evaluating the Strong Scaling Potential of AI Engines
for Molecular Dynamics Simulations.” Proceedings of the 15th International
Symposium on Highly Efficient Accelerators and Reconfigurable Technologies,
ACM, 2025, doi:10.1145/3728179.3728187.
short: 'M. Bröker, J. Menzel, C. Plessl, in: Proceedings of the 15th International
Symposium on Highly Efficient Accelerators and Reconfigurable Technologies, ACM,
2025.'
date_created: 2026-05-13T09:44:21Z
date_updated: 2026-05-13T09:45:17Z
department:
- _id: '27'
- _id: '518'
doi: 10.1145/3728179.3728187
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Proceedings of the 15th International Symposium on Highly Efficient Accelerators
and Reconfigurable Technologies
publication_status: published
publisher: ACM
status: public
title: Evaluating the Strong Scaling Potential of AI Engines for Molecular Dynamics
Simulations
type: conference
user_id: '16153'
year: '2025'
...
---
_id: '59878'
abstract:
- lang: eng
text: Abstract. In the development of advanced lightweight automotive solutions,
self-piercing riveting (SPR) offers the possibility of joining multi-material
structures to fulfil a wide variety of requirements. With regard to the entire
process chain, production-related pre-deformations of the parts to be joined can
influence the geometric shape and load capacity of SPR joints. Various studies
have investigated the influence of pre-stretched sheet materials, in the sense
of pre-drawing processes, on the formation of SPR joints. The impact of pre-stretching
sheet metals on the formation of their geometrical characteristics and the shear-tensile
strength of SPR processes was observed [1]. Pre-rolled semi-finished products
are also joined together in mixed material automotive structures, e.g. tailor
rolled blanks. This work aims to investigate the influence of pre-rolled joining
parts on the geometric formation and load-carrying capacity of SPR joints. For
this purpose, sheets of metal are cold-formed using a rolling process to induce
a defined strain-hardening state in the material and then joined in various combinations.
As the degree of deformation increases, the rolling of samples can lead to minimal
accumulation of damage in the sheet materials, which can influence the joint behaviour.
The rolling process, as well as the subsequent joining process, are also investigated
by FEM. The influence of pre-rolled semi-finished products on the strength of
the SPR joints is investigated.
author:
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Özcan
full_name: Harabati, Özcan
last_name: Harabati
- first_name: Jean-Patrick
full_name: Ludwig, Jean-Patrick
id: '76631'
last_name: Ludwig
- first_name: Max
full_name: Böhnke, Max
id: '45779'
last_name: Böhnke
- first_name: Christian Roman
full_name: Bielak, Christian Roman
id: '34782'
last_name: Bielak
- 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
citation:
ama: 'Schlichter MC, Harabati Ö, Ludwig J-P, et al. Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints. In:
Materials Research Proceedings. Vol 54. Materials Research Forum LLC; 2025.
doi:10.21741/9781644903599-148'
apa: Schlichter, M. C., Harabati, Ö., Ludwig, J.-P., Böhnke, M., Bielak, C. R.,
Bobbert, M., & Meschut, G. (2025). Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints. Materials
Research Proceedings, 54. https://doi.org/10.21741/9781644903599-148
bibtex: '@inproceedings{Schlichter_Harabati_Ludwig_Böhnke_Bielak_Bobbert_Meschut_2025,
place={Paestum}, title={Experimental and numerical investigation of the influence
of rolling-induced sheet metal deformation on SPR joints}, volume={54}, DOI={10.21741/9781644903599-148},
booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
LLC}, author={Schlichter, Malte Christian and Harabati, Özcan and Ludwig, Jean-Patrick
and Böhnke, Max and Bielak, Christian Roman and Bobbert, Mathias and Meschut,
Gerson}, year={2025} }'
chicago: 'Schlichter, Malte Christian, Özcan Harabati, Jean-Patrick Ludwig, Max
Böhnke, Christian Roman Bielak, Mathias Bobbert, and Gerson Meschut. “Experimental
and Numerical Investigation of the Influence of Rolling-Induced Sheet Metal Deformation
on SPR Joints.” In Materials Research Proceedings, Vol. 54. Paestum: Materials
Research Forum LLC, 2025. https://doi.org/10.21741/9781644903599-148.'
ieee: 'M. C. Schlichter et al., “Experimental and numerical investigation
of the influence of rolling-induced sheet metal deformation on SPR joints,” in
Materials Research Proceedings, 2025, vol. 54, doi: 10.21741/9781644903599-148.'
mla: Schlichter, Malte Christian, et al. “Experimental and Numerical Investigation
of the Influence of Rolling-Induced Sheet Metal Deformation on SPR Joints.” Materials
Research Proceedings, vol. 54, Materials Research Forum LLC, 2025, doi:10.21741/9781644903599-148.
short: 'M.C. Schlichter, Ö. Harabati, J.-P. Ludwig, M. Böhnke, C.R. Bielak, M. Bobbert,
G. Meschut, in: Materials Research Proceedings, Materials Research Forum LLC,
Paestum, 2025.'
date_created: 2025-05-13T06:54:20Z
date_updated: 2026-05-13T13:50:44Z
department:
- _id: '157'
doi: 10.21741/9781644903599-148
intvolume: ' 54'
language:
- iso: eng
place: Paestum
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _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'
status: public
title: Experimental and numerical investigation of the influence of rolling-induced
sheet metal deformation on SPR joints
type: conference
user_id: '61977'
volume: 54
year: '2025'
...