---
_id: '65487'
article_type: original
author:
- first_name: Laura
full_name: Drepper, Laura
last_name: Drepper
- first_name: Benjamin
full_name: Uhl, Benjamin
last_name: Uhl
citation:
ama: Drepper L, Uhl B. Deutschlehrkräfte als Co-Designer in der designbasierten
Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln. Mitteilungen
des Deutschen Germanistenverbandes. 2025;72(1):89-110. doi:10.13109/mdge.2025.72.1.89
apa: Drepper, L., & Uhl, B. (2025). Deutschlehrkräfte als Co-Designer in der
designbasierten Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln.
Mitteilungen des Deutschen Germanistenverbandes, 72(1), 89–110.
https://doi.org/10.13109/mdge.2025.72.1.89
bibtex: '@article{Drepper_Uhl_2025, title={Deutschlehrkräfte als Co-Designer in
der designbasierten Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln},
volume={72}, DOI={10.13109/mdge.2025.72.1.89},
number={1}, journal={Mitteilungen des Deutschen Germanistenverbandes}, author={Drepper,
Laura and Uhl, Benjamin}, year={2025}, pages={89–110} }'
chicago: 'Drepper, Laura, and Benjamin Uhl. “Deutschlehrkräfte als Co-Designer in
der designbasierten Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln.”
Mitteilungen des Deutschen Germanistenverbandes 72, no. 1 (2025): 89–110.
https://doi.org/10.13109/mdge.2025.72.1.89.'
ieee: 'L. Drepper and B. Uhl, “Deutschlehrkräfte als Co-Designer in der designbasierten
Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln,” Mitteilungen
des Deutschen Germanistenverbandes, vol. 72, no. 1, pp. 89–110, 2025, doi:
10.13109/mdge.2025.72.1.89.'
mla: Drepper, Laura, and Benjamin Uhl. “Deutschlehrkräfte als Co-Designer in der
designbasierten Forschung. Wie Theorie und Praxis den Deutschunterricht weiterentwickeln.”
Mitteilungen des Deutschen Germanistenverbandes, vol. 72, no. 1, 2025,
pp. 89–110, doi:10.13109/mdge.2025.72.1.89.
short: L. Drepper, B. Uhl, Mitteilungen des Deutschen Germanistenverbandes 72 (2025)
89–110.
date_created: 2026-04-22T09:42:41Z
date_updated: 2026-04-22T09:48:56Z
doi: 10.13109/mdge.2025.72.1.89
intvolume: ' 72'
issue: '1'
language:
- iso: ger
page: 89-110
publication: Mitteilungen des Deutschen Germanistenverbandes
publication_identifier:
issn:
- 0418-9426
- 2196-8756
publication_status: published
status: public
title: Deutschlehrkräfte als Co-Designer in der designbasierten Forschung. Wie Theorie
und Praxis den Deutschunterricht weiterentwickeln
type: journal_article
user_id: '40689'
volume: 72
year: '2025'
...
---
_id: '63250'
abstract:
- lang: eng
text: "Abstract\r\n \r\n An
initial-boundary value problem for\r\n \r\n
\ \r\n $$\\begin{aligned}
\\left\\{ \\begin{array}{ll}u_{tt} = \\big (\\gamma (\\Theta ) u_{xt}\\big )_x
+ au_{xx} - \\big (f(\\Theta )\\big )_x, \\qquad & x\\in \\Omega , \\ t>0,
\\\\[1mm] \\Theta _t = \\Theta _{xx} + \\gamma (\\Theta ) u_{xt}^2 - f(\\Theta
) u_{xt}, \\qquad & x\\in \\Omega , \\ t>0, \\end{array} \\right. \\end{aligned}$$\r\n
\ \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n u\r\n
\ \r\n tt\r\n
\ \r\n \r\n
\ =\r\n \r\n
\ (\r\n \r\n
\ γ\r\n \r\n
\ (\r\n Θ\r\n
\ )\r\n \r\n
\ \r\n u\r\n
\ \r\n xt\r\n
\ \r\n \r\n
\ \r\n \r\n
\ )\r\n \r\n
\ x\r\n \r\n
\ +\r\n a\r\n
\ \r\n u\r\n
\ \r\n xx\r\n
\ \r\n \r\n
\ -\r\n \r\n
\ (\r\n \r\n
\ f\r\n \r\n
\ (\r\n Θ\r\n
\ )\r\n \r\n
\ \r\n \r\n
\ )\r\n \r\n
\ x\r\n \r\n
\ ,\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ x\r\n ∈\r\n
\ Ω\r\n ,\r\n
\ \r\n t\r\n
\ >\r\n 0\r\n
\ ,\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n [\r\n
\ 1\r\n m\r\n
\ m\r\n ]\r\n
\ \r\n \r\n
\ Θ\r\n t\r\n
\ \r\n =\r\n
\ \r\n Θ\r\n
\ \r\n xx\r\n
\ \r\n \r\n
\ +\r\n γ\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ u\r\n \r\n
\ xt\r\n \r\n
\ 2\r\n \r\n
\ -\r\n f\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ u\r\n \r\n
\ xt\r\n \r\n
\ \r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n x\r\n
\ ∈\r\n Ω\r\n
\ ,\r\n \r\n
\ t\r\n >\r\n
\ 0\r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n is considered
in an open bounded real interval\r\n \r\n
\ \r\n $$\\Omega
$$\r\n \r\n
\ Ω\r\n \r\n
\ \r\n \r\n
\ . Under the assumption that\r\n \r\n
\ \r\n $$\\gamma
\\in C^0([0,\\infty ))$$\r\n \r\n \r\n
\ γ\r\n ∈\r\n
\ \r\n C\r\n
\ 0\r\n \r\n
\ \r\n (\r\n
\ \r\n [\r\n
\ 0\r\n ,\r\n
\ ∞\r\n )\r\n
\ \r\n )\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n and\r\n \r\n
\ \r\n $$f\\in
C^0([0,\\infty ))$$\r\n \r\n
\ \r\n f\r\n
\ ∈\r\n \r\n
\ C\r\n 0\r\n
\ \r\n \r\n
\ (\r\n \r\n
\ [\r\n 0\r\n
\ ,\r\n ∞\r\n
\ )\r\n \r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ are such that\r\n \r\n
\ \r\n $$f(0)=0$$\r\n
\ \r\n
\ \r\n f\r\n
\ (\r\n 0\r\n
\ )\r\n =\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n , and\r\n \r\n
\ \r\n $$k_\\gamma
\\le \\gamma \\le K_\\gamma $$\r\n \r\n \r\n
\ \r\n k\r\n
\ γ\r\n \r\n
\ ≤\r\n γ\r\n
\ ≤\r\n \r\n
\ K\r\n γ\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n as well as\r\n
\ \r\n \r\n
\ $$\\begin{aligned} |f(\\xi )| \\le K_f
\\cdot (\\xi +1)^\\alpha \\qquad \\hbox {for all } \\xi \\ge 0 \\end{aligned}$$\r\n
\ \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ |\r\n f\r\n
\ \r\n (\r\n
\ ξ\r\n )\r\n
\ \r\n |\r\n
\ \r\n ≤\r\n
\ \r\n K\r\n
\ f\r\n \r\n
\ ·\r\n \r\n
\ \r\n (\r\n
\ ξ\r\n +\r\n
\ 1\r\n )\r\n
\ \r\n α\r\n
\ \r\n \r\n
\ for all\r\n \r\n
\ ξ\r\n ≥\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n with some\r\n
\ \r\n \r\n
\ $$k_\\gamma>0, K_\\gamma>0, K_f>0$$\r\n
\ \r\n
\ \r\n \r\n
\ k\r\n γ\r\n
\ \r\n >\r\n
\ 0\r\n ,\r\n
\ \r\n K\r\n
\ γ\r\n \r\n
\ >\r\n 0\r\n
\ ,\r\n \r\n
\ K\r\n f\r\n
\ \r\n >\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n and\r\n \r\n
\ \r\n $$\\alpha
<\\frac{3}{2}$$\r\n \r\n
\ \r\n α\r\n
\ <\r\n \r\n
\ 3\r\n 2\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n , for all suitably
regular initial data of arbitrary size a statement on global existence of a global
weak solution is derived. By particularly covering the thermodynamically consistent
choice\r\n \r\n \r\n
\ $$f\\equiv id$$\r\n \r\n \r\n
\ f\r\n ≡\r\n
\ i\r\n d\r\n
\ \r\n \r\n
\ \r\n \r\n
\ of predominant physical relevance, this appears to go beyond
previous related literature which seems to either rely on independence of\r\n
\ \r\n \r\n
\ $$\\gamma $$\r\n \r\n γ\r\n
\ \r\n \r\n
\ \r\n on\r\n \r\n
\ \r\n $$\\Theta
$$\r\n \r\n
\ Θ\r\n \r\n
\ \r\n \r\n
\ , or to operate on finite time intervals.\r\n "
article_number: '192'
author:
- first_name: Michael
full_name: Winkler, Michael
id: '31496'
last_name: Winkler
citation:
ama: Winkler M. Large-data solutions in one-dimensional thermoviscoelasticity involving
temperature-dependent viscosities. Zeitschrift für angewandte Mathematik und
Physik. 2025;76(5). doi:10.1007/s00033-025-02582-y
apa: Winkler, M. (2025). Large-data solutions in one-dimensional thermoviscoelasticity
involving temperature-dependent viscosities. Zeitschrift Für Angewandte Mathematik
Und Physik, 76(5), Article 192. https://doi.org/10.1007/s00033-025-02582-y
bibtex: '@article{Winkler_2025, title={Large-data solutions in one-dimensional thermoviscoelasticity
involving temperature-dependent viscosities}, volume={76}, DOI={10.1007/s00033-025-02582-y},
number={5192}, journal={Zeitschrift für angewandte Mathematik und Physik}, publisher={Springer
Science and Business Media LLC}, author={Winkler, Michael}, year={2025} }'
chicago: Winkler, Michael. “Large-Data Solutions in One-Dimensional Thermoviscoelasticity
Involving Temperature-Dependent Viscosities.” Zeitschrift Für Angewandte Mathematik
Und Physik 76, no. 5 (2025). https://doi.org/10.1007/s00033-025-02582-y.
ieee: 'M. Winkler, “Large-data solutions in one-dimensional thermoviscoelasticity
involving temperature-dependent viscosities,” Zeitschrift für angewandte Mathematik
und Physik, vol. 76, no. 5, Art. no. 192, 2025, doi: 10.1007/s00033-025-02582-y.'
mla: Winkler, Michael. “Large-Data Solutions in One-Dimensional Thermoviscoelasticity
Involving Temperature-Dependent Viscosities.” Zeitschrift Für Angewandte Mathematik
Und Physik, vol. 76, no. 5, 192, Springer Science and Business Media LLC,
2025, doi:10.1007/s00033-025-02582-y.
short: M. Winkler, Zeitschrift Für Angewandte Mathematik Und Physik 76 (2025).
date_created: 2025-12-18T19:03:19Z
date_updated: 2026-04-23T12:20:44Z
doi: 10.1007/s00033-025-02582-y
intvolume: ' 76'
issue: '5'
language:
- iso: eng
project:
- _id: '245'
name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken
für Leistungsschallanwendungen (NEPTUN)'
publication: Zeitschrift für angewandte Mathematik und Physik
publication_identifier:
issn:
- 0044-2275
- 1420-9039
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Large-data solutions in one-dimensional thermoviscoelasticity involving temperature-dependent
viscosities
type: journal_article
user_id: '31496'
volume: 76
year: '2025'
...
---
_id: '63249'
abstract:
- lang: eng
text: "Abstract\r\n \r\n The
model\r\n \r\n \r\n
\ $$\\begin{aligned} \\left\\{ \\begin{array}{l}u_{tt}
= \\big (\\gamma (\\Theta ) u_{xt}\\big )_x + au_{xx} - \\big (f(\\Theta )\\big
)_x, \\\\[1mm] \\Theta _t = \\Theta _{xx} + \\gamma (\\Theta ) u_{xt}^2 - f(\\Theta
) u_{xt}, \\end{array} \\right. \\end{aligned}$$\r\n \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ u\r\n \r\n
\ tt\r\n \r\n
\ \r\n =\r\n
\ \r\n (\r\n
\ \r\n γ\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ u\r\n \r\n
\ xt\r\n \r\n
\ \r\n \r\n
\ \r\n )\r\n
\ \r\n x\r\n
\ \r\n +\r\n
\ a\r\n \r\n
\ u\r\n \r\n
\ xx\r\n \r\n
\ \r\n -\r\n
\ \r\n (\r\n
\ \r\n f\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ \r\n )\r\n
\ \r\n x\r\n
\ \r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ [\r\n 1\r\n
\ m\r\n m\r\n
\ ]\r\n \r\n
\ \r\n Θ\r\n
\ t\r\n \r\n
\ =\r\n \r\n
\ Θ\r\n \r\n
\ xx\r\n \r\n
\ \r\n +\r\n
\ γ\r\n \r\n
\ (\r\n Θ\r\n
\ )\r\n \r\n
\ \r\n u\r\n
\ \r\n xt\r\n
\ \r\n 2\r\n
\ \r\n -\r\n
\ f\r\n \r\n
\ (\r\n Θ\r\n
\ )\r\n \r\n
\ \r\n u\r\n
\ \r\n xt\r\n
\ \r\n \r\n
\ ,\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ for thermoviscoelastic evolution in one-dimensional Kelvin–Voigt
materials is considered. By means of an approach based on maximal Sobolev regularity
theory of scalar parabolic equations, it is shown that if\r\n \r\n
\ \r\n $$\\gamma
_0>0$$\r\n \r\n
\ \r\n \r\n
\ γ\r\n 0\r\n
\ \r\n >\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n is fixed, then
there exists\r\n \r\n \r\n
\ $$\\delta =\\delta (\\gamma _0)>0$$\r\n
\ \r\n
\ \r\n δ\r\n
\ =\r\n δ\r\n
\ (\r\n \r\n
\ γ\r\n 0\r\n
\ \r\n )\r\n
\ >\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ with the property that for suitably regular initial data of
arbitrary size an associated initial boundary value problem posed in an open bounded
interval admits a global classical solution whenever\r\n \r\n
\ \r\n $$\\gamma
\\in C^2([0,\\infty ))$$\r\n \r\n \r\n
\ γ\r\n ∈\r\n
\ \r\n C\r\n
\ 2\r\n \r\n
\ \r\n (\r\n
\ \r\n [\r\n
\ 0\r\n ,\r\n
\ ∞\r\n )\r\n
\ \r\n )\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n and\r\n \r\n
\ \r\n $$f\\in
C^2([0,\\infty ))$$\r\n \r\n
\ \r\n f\r\n
\ ∈\r\n \r\n
\ C\r\n 2\r\n
\ \r\n \r\n
\ (\r\n \r\n
\ [\r\n 0\r\n
\ ,\r\n ∞\r\n
\ )\r\n \r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ are such that\r\n \r\n
\ \r\n $$f(0)=0$$\r\n
\ \r\n
\ \r\n f\r\n
\ (\r\n 0\r\n
\ )\r\n =\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n and\r\n \r\n
\ \r\n $$|f(\\xi
)| \\le K_f \\cdot (\\xi +1)^\\alpha $$\r\n \r\n \r\n
\ \r\n |\r\n
\ f\r\n \r\n
\ (\r\n ξ\r\n
\ )\r\n \r\n
\ |\r\n \r\n
\ ≤\r\n \r\n
\ K\r\n f\r\n
\ \r\n ·\r\n
\ \r\n \r\n
\ (\r\n ξ\r\n
\ +\r\n 1\r\n
\ )\r\n \r\n
\ α\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ for all\r\n \r\n \r\n
\ $$\\xi \\ge 0$$\r\n \r\n \r\n
\ ξ\r\n ≥\r\n
\ 0\r\n \r\n
\ \r\n \r\n
\ \r\n and some\r\n
\ \r\n \r\n
\ $$K_f>0$$\r\n \r\n \r\n
\ \r\n K\r\n
\ f\r\n \r\n
\ >\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ and\r\n \r\n \r\n
\ $$\\alpha <\\frac{3}{2}$$\r\n
\ \r\n
\ \r\n α\r\n
\ <\r\n \r\n
\ 3\r\n 2\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n , and that\r\n
\ \r\n \r\n
\ $$\\begin{aligned} \\gamma _0 \\le \\gamma
(\\xi ) \\le \\gamma _0 + \\delta \\qquad \\hbox {for all } \\xi \\ge 0. \\end{aligned}$$\r\n
\ \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ γ\r\n 0\r\n
\ \r\n ≤\r\n
\ γ\r\n \r\n
\ (\r\n ξ\r\n
\ )\r\n \r\n
\ ≤\r\n \r\n
\ γ\r\n 0\r\n
\ \r\n +\r\n
\ δ\r\n \r\n
\ for all\r\n \r\n
\ ξ\r\n ≥\r\n
\ 0\r\n .\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ This is supplemented by a statement on global existence of
certain strong solutions, particularly continuous in both components, under weaker
conditions on the initial data.\r\n "
article_number: '108'
author:
- first_name: Michael
full_name: Winkler, Michael
id: '31496'
last_name: Winkler
citation:
ama: Winkler M. Large-data regular solutions in a one-dimensional thermoviscoelastic
evolution problem involving temperature-dependent viscosities. Journal of Evolution
Equations. 2025;25(4). doi:10.1007/s00028-025-01144-z
apa: Winkler, M. (2025). Large-data regular solutions in a one-dimensional thermoviscoelastic
evolution problem involving temperature-dependent viscosities. Journal of Evolution
Equations, 25(4), Article 108. https://doi.org/10.1007/s00028-025-01144-z
bibtex: '@article{Winkler_2025, title={Large-data regular solutions in a one-dimensional
thermoviscoelastic evolution problem involving temperature-dependent viscosities},
volume={25}, DOI={10.1007/s00028-025-01144-z},
number={4108}, journal={Journal of Evolution Equations}, publisher={Springer Science
and Business Media LLC}, author={Winkler, Michael}, year={2025} }'
chicago: Winkler, Michael. “Large-Data Regular Solutions in a One-Dimensional Thermoviscoelastic
Evolution Problem Involving Temperature-Dependent Viscosities.” Journal of
Evolution Equations 25, no. 4 (2025). https://doi.org/10.1007/s00028-025-01144-z.
ieee: 'M. Winkler, “Large-data regular solutions in a one-dimensional thermoviscoelastic
evolution problem involving temperature-dependent viscosities,” Journal of
Evolution Equations, vol. 25, no. 4, Art. no. 108, 2025, doi: 10.1007/s00028-025-01144-z.'
mla: Winkler, Michael. “Large-Data Regular Solutions in a One-Dimensional Thermoviscoelastic
Evolution Problem Involving Temperature-Dependent Viscosities.” Journal of
Evolution Equations, vol. 25, no. 4, 108, Springer Science and Business Media
LLC, 2025, doi:10.1007/s00028-025-01144-z.
short: M. Winkler, Journal of Evolution Equations 25 (2025).
date_created: 2025-12-18T19:02:51Z
date_updated: 2026-04-23T12:19:51Z
doi: 10.1007/s00028-025-01144-z
intvolume: ' 25'
issue: '4'
language:
- iso: eng
project:
- _id: '245'
name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken
für Leistungsschallanwendungen (NEPTUN)'
publication: Journal of Evolution Equations
publication_identifier:
issn:
- 1424-3199
- 1424-3202
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Large-data regular solutions in a one-dimensional thermoviscoelastic evolution
problem involving temperature-dependent viscosities
type: journal_article
user_id: '31496'
volume: 25
year: '2025'
...
---
_id: '63246'
abstract:
- lang: eng
text: "Abstract\r\n \r\n The
hyperbolic-parabolic model\r\n \r\n \r\n
\ $$\\begin{aligned} \\left\\{ \\begin{array}{ll}
u_{tt} = u_{xx} - \\big (f(\\Theta )\\big )_x, \\qquad & x\\in \\Omega ,
\\ t>0, \\\\ \\Theta _t = \\Theta _{xx} - f(\\Theta ) u_{xt}, \\qquad &
\ x\\in \\Omega , \\ t>0, \\end{array} \\right. \\end{aligned}$$\r\n
\ \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n u\r\n
\ \r\n tt\r\n
\ \r\n \r\n
\ =\r\n \r\n
\ u\r\n \r\n
\ xx\r\n \r\n
\ \r\n -\r\n
\ \r\n (\r\n
\ \r\n f\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ \r\n )\r\n
\ \r\n x\r\n
\ \r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n x\r\n
\ ∈\r\n Ω\r\n
\ ,\r\n \r\n
\ t\r\n >\r\n
\ 0\r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ Θ\r\n t\r\n
\ \r\n =\r\n
\ \r\n Θ\r\n
\ \r\n xx\r\n
\ \r\n \r\n
\ -\r\n f\r\n
\ \r\n (\r\n
\ Θ\r\n )\r\n
\ \r\n \r\n
\ u\r\n \r\n
\ xt\r\n \r\n
\ \r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n x\r\n
\ ∈\r\n Ω\r\n
\ ,\r\n \r\n
\ t\r\n >\r\n
\ 0\r\n ,\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n for the evolution
of the displacement variable\r\n u\r\n
\ and the temperature\r\n \r\n
\ \r\n $$\\Theta
\\ge 0$$\r\n \r\n
\ \r\n Θ\r\n
\ ≥\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ during thermoelastic interaction in a one-dimensional bounded
interval\r\n \r\n \r\n
\ $$\\Omega $$\r\n \r\n Ω\r\n
\ \r\n \r\n
\ \r\n is considered.
Whereas the literature has provided comprehensive results on global solutions
for sufficiently regular initial data\r\n \r\n
\ \r\n $$(u_0,u_{0t},\\Theta
_0)=(u,u_t,\\Theta )|_{t=0}$$\r\n \r\n \r\n
\ \r\n (\r\n
\ \r\n u\r\n
\ 0\r\n \r\n
\ ,\r\n \r\n
\ u\r\n \r\n
\ 0\r\n t\r\n
\ \r\n \r\n
\ ,\r\n \r\n
\ Θ\r\n 0\r\n
\ \r\n )\r\n
\ \r\n =\r\n
\ \r\n (\r\n
\ u\r\n ,\r\n
\ \r\n u\r\n
\ t\r\n \r\n
\ ,\r\n Θ\r\n
\ )\r\n \r\n
\ \r\n \r\n
\ |\r\n \r\n
\ \r\n t\r\n
\ =\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ when\r\n \r\n \r\n
\ $$f\\equiv id$$\r\n \r\n \r\n
\ f\r\n ≡\r\n
\ i\r\n d\r\n
\ \r\n \r\n
\ \r\n \r\n
\ , it seems to have remained open so far how far a solution
theory can be built solely on the two fundamental physical principles of energy
conservation and entropy nondecrease. The present manuscript addresses this by
asserting global existence of weak solutions under assumptions which are energy-
and entropy-minimal in the sense of allowing for any initial data\r\n \r\n
\ \r\n $$u_0\\in
W_0^{1,2}(\\Omega )$$\r\n \r\n
\ \r\n \r\n
\ u\r\n 0\r\n
\ \r\n ∈\r\n
\ \r\n W\r\n
\ 0\r\n \r\n
\ 1\r\n ,\r\n
\ 2\r\n \r\n
\ \r\n \r\n
\ (\r\n Ω\r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ ,\r\n \r\n \r\n
\ $$u_{0t} \\in L^2(\\Omega )$$\r\n
\ \r\n
\ \r\n \r\n
\ u\r\n \r\n
\ 0\r\n t\r\n
\ \r\n \r\n
\ ∈\r\n \r\n
\ L\r\n 2\r\n
\ \r\n \r\n
\ (\r\n Ω\r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ and\r\n \r\n \r\n
\ $$0\\le \\Theta _0\\in L^1(\\Omega )$$\r\n
\ \r\n
\ \r\n 0\r\n
\ ≤\r\n \r\n
\ Θ\r\n 0\r\n
\ \r\n ∈\r\n
\ \r\n L\r\n
\ 1\r\n \r\n
\ \r\n (\r\n
\ Ω\r\n )\r\n
\ \r\n \r\n
\ \r\n \r\n
\ \r\n , and which
apply to arbitrary\r\n \r\n \r\n
\ $$f\\in C^1([0,\\infty ))$$\r\n
\ \r\n
\ \r\n f\r\n
\ ∈\r\n \r\n
\ C\r\n 1\r\n
\ \r\n \r\n
\ (\r\n \r\n
\ [\r\n 0\r\n
\ ,\r\n ∞\r\n
\ )\r\n \r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n \r\n
\ with\r\n \r\n \r\n
\ $$f(0)=0$$\r\n \r\n \r\n
\ f\r\n (\r\n
\ 0\r\n )\r\n
\ =\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ and\r\n \r\n \r\n
\ $$f'>0$$\r\n \r\n \r\n
\ \r\n f\r\n
\ ′\r\n \r\n
\ >\r\n 0\r\n
\ \r\n \r\n
\ \r\n \r\n
\ on\r\n \r\n \r\n
\ $$[0,\\infty )$$\r\n \r\n \r\n
\ [\r\n 0\r\n
\ ,\r\n ∞\r\n
\ )\r\n \r\n
\ \r\n \r\n
\ \r\n .\r\n "
article_number: '1'
author:
- first_name: Michael
full_name: Winkler, Michael
id: '31496'
last_name: Winkler
citation:
ama: Winkler M. Rough solutions in one-dimensional nonlinear thermoelasticity. Calculus
of Variations and Partial Differential Equations. 2025;65(1). doi:10.1007/s00526-025-03170-8
apa: Winkler, M. (2025). Rough solutions in one-dimensional nonlinear thermoelasticity.
Calculus of Variations and Partial Differential Equations, 65(1),
Article 1. https://doi.org/10.1007/s00526-025-03170-8
bibtex: '@article{Winkler_2025, title={Rough solutions in one-dimensional nonlinear
thermoelasticity}, volume={65}, DOI={10.1007/s00526-025-03170-8},
number={11}, journal={Calculus of Variations and Partial Differential Equations},
publisher={Springer Science and Business Media LLC}, author={Winkler, Michael},
year={2025} }'
chicago: Winkler, Michael. “Rough Solutions in One-Dimensional Nonlinear Thermoelasticity.”
Calculus of Variations and Partial Differential Equations 65, no. 1 (2025).
https://doi.org/10.1007/s00526-025-03170-8.
ieee: 'M. Winkler, “Rough solutions in one-dimensional nonlinear thermoelasticity,”
Calculus of Variations and Partial Differential Equations, vol. 65, no.
1, Art. no. 1, 2025, doi: 10.1007/s00526-025-03170-8.'
mla: Winkler, Michael. “Rough Solutions in One-Dimensional Nonlinear Thermoelasticity.”
Calculus of Variations and Partial Differential Equations, vol. 65, no.
1, 1, Springer Science and Business Media LLC, 2025, doi:10.1007/s00526-025-03170-8.
short: M. Winkler, Calculus of Variations and Partial Differential Equations 65
(2025).
date_created: 2025-12-18T19:01:02Z
date_updated: 2026-04-23T12:18:59Z
doi: 10.1007/s00526-025-03170-8
intvolume: ' 65'
issue: '1'
language:
- iso: eng
project:
- _id: '245'
name: 'FOR 5208: Modellbasierte Bestimmung nichtlinearer Eigenschaften von Piezokeramiken
für Leistungsschallanwendungen (NEPTUN)'
publication: Calculus of Variations and Partial Differential Equations
publication_identifier:
issn:
- 0944-2669
- 1432-0835
publication_status: published
publisher: Springer Science and Business Media LLC
status: public
title: Rough solutions in one-dimensional nonlinear thermoelasticity
type: journal_article
user_id: '31496'
volume: 65
year: '2025'
...
---
_id: '62717'
abstract:
- lang: eng
text: Diese Dissertation untersucht, wie Menschen Entscheidungen in Interaktionen
sowohl mit anderen Personen als auch mit zunehmend verbreiteten algorithmischen
Systemen treffen. Unter Einbezug von Erkenntnissen aus der Verhaltensökonomie
und der Mensch-Maschine-Interaktion wird analysiert, wie kognitive Limitationen,
soziale Präferenzen und Wahrnehmungsverzerrungen das Verhalten in Kontexten von
Unehrlichkeit, Empfehlungsumsetzung, Feedbackverarbeitung und Selbsteinschätzung
prägen. Vier kontrollierte ökonomische Experimente zeigen, dass algorithmische
Intransparenz unehrliches Verhalten verstärken kann, die Einbindung von Nutzern
in das Training von KI-Systemen zwar deren Wahrnehmung verbessert, jedoch nicht
die tatsächliche Befolgung algorithmischer Ratschläge fördert, dass Echtzeit-Feedback
in Human-in-the-Loop-Systemen unbeabsichtigt Verhaltensverzerrungen verstärken
kann und dass gängige Messungen von Selbstüberschätzung stark von methodischen
Designentscheidungen abhängen. Die Dissertation unterstreicht die Notwendigkeit,
realistische Annahmen über menschliches Verhalten bei der Gestaltung von Prüfungsprozessen,
Empfehlungssystemen und interaktiven Technologien zu berücksichtigen und leistet
damit einen Beitrag zu einem besseren Verständnis menschlicher Entscheidungsprozesse
in einer zunehmend automatisierten Welt.
- lang: eng
text: This dissertation investigates how humans make decisions in interactions with
both other people and increasingly prevalent algorithmic systems. Integrating
insights from behavioral economics and human-machine interaction, it examines
how cognitive limitations, social preferences, and perceptual biases shape behavior
in contexts involving dishonesty, advice-taking, feedback, and self-assessment.
Across four controlled economic experiments, the studies show that algorithmic
opacity can increase dishonest behavior, user involvement in AI training improves
perceptions but not actual adherence to algorithmic advice, real-time feedback
in human-in-the-loop systems can unintentionally amplify behavioral biases, and
common measures of overconfidence are sensitive to methodological design. The
dissertation underscores the need to incorporate realistic behavioral assumptions
when designing verification processes, advisory algorithms, and interactive technologies,
contributing to a deeper understanding of human decision-making in an increasingly
automated world.
author:
- first_name: Marius
full_name: Protte, Marius
last_name: Protte
citation:
ama: Protte M. Behavioral Effects in Human-Machine and Human-Human Interactions.
LibreCat University; 2025. doi:10.17619/UNIPB/1-2448
apa: Protte, M. (2025). Behavioral effects in human-machine and human-human interactions.
LibreCat University. https://doi.org/10.17619/UNIPB/1-2448
bibtex: '@book{Protte_2025, title={Behavioral effects in human-machine and human-human
interactions}, DOI={10.17619/UNIPB/1-2448},
publisher={LibreCat University}, author={Protte, Marius}, year={2025} }'
chicago: Protte, Marius. Behavioral Effects in Human-Machine and Human-Human
Interactions. LibreCat University, 2025. https://doi.org/10.17619/UNIPB/1-2448.
ieee: M. Protte, Behavioral effects in human-machine and human-human interactions.
LibreCat University, 2025.
mla: Protte, Marius. Behavioral Effects in Human-Machine and Human-Human Interactions.
LibreCat University, 2025, doi:10.17619/UNIPB/1-2448.
short: M. Protte, Behavioral Effects in Human-Machine and Human-Human Interactions,
LibreCat University, 2025.
date_created: 2025-12-01T10:22:40Z
date_updated: 2026-04-27T12:12:35Z
doi: 10.17619/UNIPB/1-2448
language:
- iso: eng
publication_status: published
publisher: LibreCat University
status: public
title: Behavioral effects in human-machine and human-human interactions
type: dissertation
user_id: '44549'
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: '65510'
author:
- first_name: Felix
full_name: Rossmann, Felix
id: '98531'
last_name: Rossmann
citation:
ama: 'Rossmann F. Zum Verhältnis von nachhaltigkeitsbezogener Transparenz und strategischem
Sichtbarkeitsmanagement. In: Sturn R, Klüh U, eds. Jahrbuch Normative Und Institutionelle
Grundfragen Der Ökonomik. 22nd ed. Schattenwirtschaft – Schattenpolitik. Scheitert
die Transformation? Metropolis; 2025:15 pp.'
apa: Rossmann, F. (2025). Zum Verhältnis von nachhaltigkeitsbezogener Transparenz
und strategischem Sichtbarkeitsmanagement. In R. Sturn & U. Klüh (Eds.), Jahrbuch
Normative und institutionelle Grundfragen der Ökonomik (22nd ed., p. 15 pp.).
Metropolis.
bibtex: '@inbook{Rossmann_2025, edition={22}, series={Schattenwirtschaft – Schattenpolitik.
Scheitert die Transformation?}, title={Zum Verhältnis von nachhaltigkeitsbezogener
Transparenz und strategischem Sichtbarkeitsmanagement}, booktitle={Jahrbuch Normative
und institutionelle Grundfragen der Ökonomik}, publisher={Metropolis}, author={Rossmann,
Felix}, editor={Sturn, Richard and Klüh, Ulrich}, year={2025}, pages={15 pp.},
collection={Schattenwirtschaft – Schattenpolitik. Scheitert die Transformation?}
}'
chicago: Rossmann, Felix. “Zum Verhältnis von Nachhaltigkeitsbezogener Transparenz
Und Strategischem Sichtbarkeitsmanagement.” In Jahrbuch Normative Und Institutionelle
Grundfragen Der Ökonomik, edited by Richard Sturn and Ulrich Klüh, 22nd ed.,
15 pp. Schattenwirtschaft – Schattenpolitik. Scheitert Die Transformation? Metropolis,
2025.
ieee: F. Rossmann, “Zum Verhältnis von nachhaltigkeitsbezogener Transparenz und
strategischem Sichtbarkeitsmanagement,” in Jahrbuch Normative und institutionelle
Grundfragen der Ökonomik, 22nd ed., R. Sturn and U. Klüh, Eds. Metropolis,
2025, p. 15 pp.
mla: Rossmann, Felix. “Zum Verhältnis von Nachhaltigkeitsbezogener Transparenz Und
Strategischem Sichtbarkeitsmanagement.” Jahrbuch Normative Und Institutionelle
Grundfragen Der Ökonomik, edited by Richard Sturn and Ulrich Klüh, 22nd ed.,
Metropolis, 2025, p. 15 pp.
short: 'F. Rossmann, in: R. Sturn, U. Klüh (Eds.), Jahrbuch Normative Und Institutionelle
Grundfragen Der Ökonomik, 22nd ed., Metropolis, 2025, p. 15 pp.'
date_created: 2026-04-29T07:28:39Z
date_updated: 2026-04-29T07:28:53Z
edition: '22'
editor:
- first_name: Richard
full_name: Sturn, Richard
last_name: Sturn
- first_name: Ulrich
full_name: Klüh, Ulrich
last_name: Klüh
language:
- iso: eng
page: 15 pp.
publication: Jahrbuch Normative und institutionelle Grundfragen der Ökonomik
publication_identifier:
unknown:
- 978-3-7316-1623-8
publisher: Metropolis
series_title: Schattenwirtschaft – Schattenpolitik. Scheitert die Transformation?
status: public
title: Zum Verhältnis von nachhaltigkeitsbezogener Transparenz und strategischem Sichtbarkeitsmanagement
type: book_chapter
user_id: '98531'
year: '2025'
...
---
_id: '65509'
author:
- first_name: Felix Konstantin
full_name: Rossmann, Felix Konstantin
last_name: Rossmann
citation:
ama: Rossmann FK. Forschungsperspektiven zu Sustainable Finance in kleinen und mittleren
Unternehmen. ZfKE – Zeitschrift für KMU und Entrepreneurship. 2025;72(3–4):251-256.
doi:10.3790/zfke.2024.1465308
apa: Rossmann, F. K. (2025). Forschungsperspektiven zu Sustainable Finance in kleinen
und mittleren Unternehmen. ZfKE – Zeitschrift Für KMU Und Entrepreneurship,
72(3–4), 251–256. https://doi.org/10.3790/zfke.2024.1465308
bibtex: '@article{Rossmann_2025, title={Forschungsperspektiven zu Sustainable Finance
in kleinen und mittleren Unternehmen}, volume={72}, DOI={10.3790/zfke.2024.1465308},
number={3–4}, journal={ZfKE – Zeitschrift für KMU und Entrepreneurship}, publisher={Duncker
& Humblot GmbH}, author={Rossmann, Felix Konstantin}, year={2025}, pages={251–256}
}'
chicago: 'Rossmann, Felix Konstantin. “Forschungsperspektiven Zu Sustainable Finance
in Kleinen Und Mittleren Unternehmen.” ZfKE – Zeitschrift Für KMU Und Entrepreneurship
72, no. 3–4 (2025): 251–56. https://doi.org/10.3790/zfke.2024.1465308.'
ieee: 'F. K. Rossmann, “Forschungsperspektiven zu Sustainable Finance in kleinen
und mittleren Unternehmen,” ZfKE – Zeitschrift für KMU und Entrepreneurship,
vol. 72, no. 3–4, pp. 251–256, 2025, doi: 10.3790/zfke.2024.1465308.'
mla: Rossmann, Felix Konstantin. “Forschungsperspektiven Zu Sustainable Finance
in Kleinen Und Mittleren Unternehmen.” ZfKE – Zeitschrift Für KMU Und Entrepreneurship,
vol. 72, no. 3–4, Duncker & Humblot GmbH, 2025, pp. 251–56, doi:10.3790/zfke.2024.1465308.
short: F.K. Rossmann, ZfKE – Zeitschrift Für KMU Und Entrepreneurship 72 (2025)
251–256.
date_created: 2026-04-29T07:23:39Z
date_updated: 2026-04-29T07:28:58Z
doi: 10.3790/zfke.2024.1465308
intvolume: ' 72'
issue: 3–4
page: 251-256
publication: ZfKE – Zeitschrift für KMU und Entrepreneurship
publication_identifier:
issn:
- 1865-5114
- 1860-4633
publication_status: published
publisher: Duncker & Humblot GmbH
status: public
title: Forschungsperspektiven zu Sustainable Finance in kleinen und mittleren Unternehmen
type: journal_article
user_id: '98531'
volume: 72
year: '2025'
...
---
_id: '64610'
author:
- first_name: Amir Hossein
full_name: Hadipour, Amir Hossein
id: '110924'
last_name: Hadipour
- first_name: Atousa
full_name: Jafari, Atousa
id: '99966'
last_name: Jafari
- first_name: Muhammad
full_name: Awais, Muhammad
id: '64665'
last_name: Awais
orcid: https://orcid.org/0000-0003-4148-2969
- first_name: Marco
full_name: Platzner, Marco
id: '398'
last_name: Platzner
citation:
ama: 'Hadipour AH, Jafari A, Awais M, Platzner M. A Two-Stage Approximation Methodology
for Efficient DNN Hardware Implementation. In: 2025 IEEE 28th International
Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS).
IEEE; 2025. doi:10.1109/ddecs63720.2025.11006769'
apa: Hadipour, A. H., Jafari, A., Awais, M., & Platzner, M. (2025). A Two-Stage
Approximation Methodology for Efficient DNN Hardware Implementation. 2025 IEEE
28th International Symposium on Design and Diagnostics of Electronic Circuits
and Systems (DDECS). https://doi.org/10.1109/ddecs63720.2025.11006769
bibtex: '@inproceedings{Hadipour_Jafari_Awais_Platzner_2025, title={A Two-Stage
Approximation Methodology for Efficient DNN Hardware Implementation}, DOI={10.1109/ddecs63720.2025.11006769},
booktitle={2025 IEEE 28th International Symposium on Design and Diagnostics of
Electronic Circuits and Systems (DDECS)}, publisher={IEEE}, author={Hadipour,
Amir Hossein and Jafari, Atousa and Awais, Muhammad and Platzner, Marco}, year={2025}
}'
chicago: Hadipour, Amir Hossein, Atousa Jafari, Muhammad Awais, and Marco Platzner.
“A Two-Stage Approximation Methodology for Efficient DNN Hardware Implementation.”
In 2025 IEEE 28th International Symposium on Design and Diagnostics of Electronic
Circuits and Systems (DDECS). IEEE, 2025. https://doi.org/10.1109/ddecs63720.2025.11006769.
ieee: 'A. H. Hadipour, A. Jafari, M. Awais, and M. Platzner, “A Two-Stage Approximation
Methodology for Efficient DNN Hardware Implementation,” 2025, doi: 10.1109/ddecs63720.2025.11006769.'
mla: Hadipour, Amir Hossein, et al. “A Two-Stage Approximation Methodology for Efficient
DNN Hardware Implementation.” 2025 IEEE 28th International Symposium on Design
and Diagnostics of Electronic Circuits and Systems (DDECS), IEEE, 2025, doi:10.1109/ddecs63720.2025.11006769.
short: 'A.H. Hadipour, A. Jafari, M. Awais, M. Platzner, in: 2025 IEEE 28th International
Symposium on Design and Diagnostics of Electronic Circuits and Systems (DDECS),
IEEE, 2025.'
date_created: 2026-02-24T11:50:01Z
date_updated: 2026-04-29T13:13:41Z
doi: 10.1109/ddecs63720.2025.11006769
language:
- iso: eng
publication: 2025 IEEE 28th International Symposium on Design and Diagnostics of Electronic
Circuits and Systems (DDECS)
publication_status: published
publisher: IEEE
status: public
title: A Two-Stage Approximation Methodology for Efficient DNN Hardware Implementation
type: conference
user_id: '110924'
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: '65525'
author:
- first_name: Eileen
full_name: Reckmann, Eileen
id: '101166'
last_name: Reckmann
- first_name: Katrin
full_name: Temmen, Katrin
id: '30086'
last_name: Temmen
citation:
ama: 'Reckmann E, Temmen K. Beforschung eines MINT Clusters – erste Ergebnisse und
weitere Schritte. In: ; 2025.'
apa: Reckmann, E., & Temmen, K. (2025). Beforschung eines MINT Clusters –
erste Ergebnisse und weitere Schritte. 20. LeLa-Jahrestagung, Oldenburg.
bibtex: '@inproceedings{Reckmann_Temmen_2025, title={Beforschung eines MINT Clusters
– erste Ergebnisse und weitere Schritte}, author={Reckmann, Eileen and Temmen,
Katrin}, year={2025} }'
chicago: Reckmann, Eileen, and Katrin Temmen. “Beforschung Eines MINT Clusters –
Erste Ergebnisse Und Weitere Schritte,” 2025.
ieee: E. Reckmann and K. Temmen, “Beforschung eines MINT Clusters – erste Ergebnisse
und weitere Schritte,” presented at the 20. LeLa-Jahrestagung, Oldenburg, 2025.
mla: Reckmann, Eileen, and Katrin Temmen. Beforschung Eines MINT Clusters – Erste
Ergebnisse Und Weitere Schritte. 2025.
short: 'E. Reckmann, K. Temmen, in: 2025.'
conference:
end_date: 2025-03-11
location: Oldenburg
name: 20. LeLa-Jahrestagung
start_date: 2025-03-09
date_created: 2026-04-30T08:19:03Z
date_updated: 2026-04-30T08:19:21Z
language:
- iso: eng
status: public
title: Beforschung eines MINT Clusters – erste Ergebnisse und weitere Schritte
type: conference_abstract
user_id: '101166'
year: '2025'
...
---
_id: '65528'
article_number: '104362'
author:
- first_name: Adam
full_name: Janovsky, Adam
last_name: Janovsky
- first_name: Łukasz
full_name: Chmielewski, Łukasz
last_name: Chmielewski
- first_name: Petr
full_name: Svenda, Petr
last_name: Svenda
- first_name: Jan
full_name: Jancar, Jan
last_name: Jancar
- first_name: Vashek
full_name: Matyas, Vashek
last_name: Matyas
citation:
ama: Janovsky A, Chmielewski Ł, Svenda P, Jancar J, Matyas V. Revisiting the analysis
of references among Common Criteria certified products. Computers &
Security. 2025;152. doi:10.1016/j.cose.2025.104362
apa: Janovsky, A., Chmielewski, Ł., Svenda, P., Jancar, J., & Matyas, V. (2025).
Revisiting the analysis of references among Common Criteria certified products.
Computers & Security, 152, Article 104362. https://doi.org/10.1016/j.cose.2025.104362
bibtex: '@article{Janovsky_Chmielewski_Svenda_Jancar_Matyas_2025, title={Revisiting
the analysis of references among Common Criteria certified products}, volume={152},
DOI={10.1016/j.cose.2025.104362},
number={104362}, journal={Computers & Security}, publisher={Elsevier BV},
author={Janovsky, Adam and Chmielewski, Łukasz and Svenda, Petr and Jancar, Jan
and Matyas, Vashek}, year={2025} }'
chicago: Janovsky, Adam, Łukasz Chmielewski, Petr Svenda, Jan Jancar, and Vashek
Matyas. “Revisiting the Analysis of References among Common Criteria Certified
Products.” Computers & Security 152 (2025). https://doi.org/10.1016/j.cose.2025.104362.
ieee: 'A. Janovsky, Ł. Chmielewski, P. Svenda, J. Jancar, and V. Matyas, “Revisiting
the analysis of references among Common Criteria certified products,” Computers
& Security, vol. 152, Art. no. 104362, 2025, doi: 10.1016/j.cose.2025.104362.'
mla: Janovsky, Adam, et al. “Revisiting the Analysis of References among Common
Criteria Certified Products.” Computers & Security, vol. 152, 104362,
Elsevier BV, 2025, doi:10.1016/j.cose.2025.104362.
short: A. Janovsky, Ł. Chmielewski, P. Svenda, J. Jancar, V. Matyas, Computers &
Security 152 (2025).
date_created: 2026-04-30T09:26:42Z
date_updated: 2026-04-30T09:32:20Z
doi: 10.1016/j.cose.2025.104362
intvolume: ' 152'
language:
- iso: eng
publication: Computers & Security
publication_identifier:
issn:
- 0167-4048
publication_status: published
publisher: Elsevier BV
status: public
title: Revisiting the analysis of references among Common Criteria certified products
type: journal_article
user_id: '125442'
volume: 152
year: '2025'
...
---
_id: '65526'
author:
- first_name: Jan
full_name: JANCAR, Jan
last_name: JANCAR
- first_name: Petr
full_name: SVENDA, Petr
last_name: SVENDA
- first_name: Marek
full_name: SYS, Marek
last_name: SYS
citation:
ama: 'JANCAR J, SVENDA P, SYS M. ROCA and Minerva Vulnerabilities. In: Embedded
Cryptography 3. Wiley; 2025. doi:10.1002/9781394351930.ch10'
apa: JANCAR, J., SVENDA, P., & SYS, M. (2025). ROCA and Minerva Vulnerabilities.
In Embedded Cryptography 3. Wiley. https://doi.org/10.1002/9781394351930.ch10
bibtex: '@inbook{JANCAR_SVENDA_SYS_2025, title={ROCA and Minerva Vulnerabilities},
DOI={10.1002/9781394351930.ch10},
booktitle={Embedded Cryptography 3}, publisher={Wiley}, author={JANCAR, Jan and
SVENDA, Petr and SYS, Marek}, year={2025} }'
chicago: JANCAR, Jan, Petr SVENDA, and Marek SYS. “ROCA and Minerva Vulnerabilities.”
In Embedded Cryptography 3. Wiley, 2025. https://doi.org/10.1002/9781394351930.ch10.
ieee: J. JANCAR, P. SVENDA, and M. SYS, “ROCA and Minerva Vulnerabilities,” in Embedded
Cryptography 3, Wiley, 2025.
mla: JANCAR, Jan, et al. “ROCA and Minerva Vulnerabilities.” Embedded Cryptography
3, Wiley, 2025, doi:10.1002/9781394351930.ch10.
short: 'J. JANCAR, P. SVENDA, M. SYS, in: Embedded Cryptography 3, Wiley, 2025.'
date_created: 2026-04-30T09:26:23Z
date_updated: 2026-04-30T09:32:17Z
doi: 10.1002/9781394351930.ch10
language:
- iso: eng
publication: Embedded Cryptography 3
publication_identifier:
isbn:
- '9781789452150'
- '9781394351930'
publication_status: published
publisher: Wiley
status: public
title: ROCA and Minerva Vulnerabilities
type: book_chapter
user_id: '125442'
year: '2025'
...
---
_id: '65537'
abstract:
- lang: eng
text: 'It is a widely accepted standard practice to implement cryptographic
software so that secret inputs do not influence the cycle count. Software following
this paradigm is often referred to as “constant-time” software and typically involves
following three rules: 1) never branch on a secret-dependent condition, 2) never
access memory at a secret-dependent location, and 3) avoid variable-time arithmetic
operations on secret data. The third rule requires knowledge about such variable-time
arithmetic instructions, or vice versa, which operations are safe to use on secret
inputs. For a long time, this knowledge was based on either documentation or microbenchmarks,
but critically, there were never any guarantees for future microarchitectures.
This changed with the introduction of the data-operand-independent-timing (DOIT)
mode on Intel CPUs and, to some extent, the data-independent-timing (DIT) mode
on Arm CPUs. Both Intel and Arm document a subset of their respective instruction
sets that are intended to leak no information about their inputs through timing,
even on future microarchitectures if the CPU is set to run in a dedicated DOIT
(or DIT) mode.In this paper, we present a principled solution that leverages DOIT
to enable cryptographic software that is future-proof constant-time, in the sense
that it ensures that only instructions from the DOIT subset are used to operate
on secret data, even during speculative execution after a mispredicted branch
or function return location. For this solution, we build on top of existing security
type systems in the Jasmin framework for high-assurance cryptography.We then use
our solution to evaluate the extent to which existing cryptographic software built
to be “constant-time” is already secure in this stricter paradigm implied by DOIT
and what the performance impact is to move from constant-time to future-proof
constant-time.'
author:
- first_name: Santiago
full_name: Arranz-Olmos, Santiago
last_name: Arranz-Olmos
- first_name: Gilles
full_name: Barthe, Gilles
last_name: Barthe
- first_name: Benjamin
full_name: Grégoire, Benjamin
last_name: Grégoire
- first_name: Jan
full_name: Jancar, Jan
last_name: Jancar
- first_name: Vincent
full_name: Laporte, Vincent
last_name: Laporte
- first_name: Tiago
full_name: Oliveira, Tiago
last_name: Oliveira
- first_name: Peter
full_name: Schwabe, Peter
last_name: Schwabe
citation:
ama: 'Arranz-Olmos S, Barthe G, Grégoire B, et al. Let’s DOIT: Using Intel’s Extended
HW/SW Contract for Secure Compilation of Crypto Code. IACR Transactions on
Cryptographic Hardware and Embedded Systems. 2025;2025(3):644-667. doi:10.46586/tches.v2025.i3.644-667'
apa: 'Arranz-Olmos, S., Barthe, G., Grégoire, B., Jancar, J., Laporte, V., Oliveira,
T., & Schwabe, P. (2025). Let’s DOIT: Using Intel’s Extended HW/SW Contract
for Secure Compilation of Crypto Code. IACR Transactions on Cryptographic Hardware
and Embedded Systems, 2025(3), 644–667. https://doi.org/10.46586/tches.v2025.i3.644-667'
bibtex: '@article{Arranz-Olmos_Barthe_Grégoire_Jancar_Laporte_Oliveira_Schwabe_2025,
title={Let’s DOIT: Using Intel’s Extended HW/SW Contract for Secure Compilation
of Crypto Code}, volume={2025}, DOI={10.46586/tches.v2025.i3.644-667},
number={3}, journal={IACR Transactions on Cryptographic Hardware and Embedded
Systems}, publisher={Universitatsbibliothek der Ruhr-Universitat Bochum}, author={Arranz-Olmos,
Santiago and Barthe, Gilles and Grégoire, Benjamin and Jancar, Jan and Laporte,
Vincent and Oliveira, Tiago and Schwabe, Peter}, year={2025}, pages={644–667}
}'
chicago: 'Arranz-Olmos, Santiago, Gilles Barthe, Benjamin Grégoire, Jan Jancar,
Vincent Laporte, Tiago Oliveira, and Peter Schwabe. “Let’s DOIT: Using Intel’s
Extended HW/SW Contract for Secure Compilation of Crypto Code.” IACR Transactions
on Cryptographic Hardware and Embedded Systems 2025, no. 3 (2025): 644–67.
https://doi.org/10.46586/tches.v2025.i3.644-667.'
ieee: 'S. Arranz-Olmos et al., “Let’s DOIT: Using Intel’s Extended HW/SW
Contract for Secure Compilation of Crypto Code,” IACR Transactions on Cryptographic
Hardware and Embedded Systems, vol. 2025, no. 3, pp. 644–667, 2025, doi: 10.46586/tches.v2025.i3.644-667.'
mla: 'Arranz-Olmos, Santiago, et al. “Let’s DOIT: Using Intel’s Extended HW/SW Contract
for Secure Compilation of Crypto Code.” IACR Transactions on Cryptographic
Hardware and Embedded Systems, vol. 2025, no. 3, Universitatsbibliothek der
Ruhr-Universitat Bochum, 2025, pp. 644–67, doi:10.46586/tches.v2025.i3.644-667.'
short: S. Arranz-Olmos, G. Barthe, B. Grégoire, J. Jancar, V. Laporte, T. Oliveira,
P. Schwabe, IACR Transactions on Cryptographic Hardware and Embedded Systems 2025
(2025) 644–667.
date_created: 2026-04-30T09:31:53Z
date_updated: 2026-04-30T09:32:27Z
doi: 10.46586/tches.v2025.i3.644-667
intvolume: ' 2025'
issue: '3'
page: 644-667
publication: IACR Transactions on Cryptographic Hardware and Embedded Systems
publication_identifier:
issn:
- 2569-2925
publication_status: published
publisher: Universitatsbibliothek der Ruhr-Universitat Bochum
status: public
title: 'Let’s DOIT: Using Intel’s Extended HW/SW Contract for Secure Compilation of
Crypto Code'
type: journal_article
user_id: '125442'
volume: 2025
year: '2025'
...
---
_id: '65538'
abstract:
- lang: eng
text: Developers implementing elliptic curve cryptography (ECC) face a wide
range of implementation choices created by decades of research into elliptic curves.
The literature on elliptic curves offers a plethora of curve models, scalar multipliers,
and addition formulas, but this comes with the price of enabling attacks to also
use the rich structure of these techniques. Navigating through this area is not
an easy task and developers often obscure their choices, especially in black-box
hardware implementations. Since side-channel attackers rely on the knowledge of
the implementation details, reverse engineering becomes a crucial part of attacks.This
work presents ECTester – a tool for testing black-box ECC implementations. Through
various test suites, ECTester observes the behavior of the target implementation
against known attacks but also non-standard inputs and elliptic curve parameters.
We analyze popular ECC libraries and smartcards and show that some libraries and
most smartcards do not check the order of the input points and improperly handle
the infinity point. Based on these observations, we design new techniques for
reverse engineering scalar randomization countermeasures that are able to distinguish
between group scalar randomization, additive, multiplicative or Euclidean splitting.
Our techniques do not require side-channel measurements; they only require the
ability to set custom domain parameters, and are able to extract not only the
size but also the exact value of the random mask used. Using the techniques, we
successfully reverse-engineered the countermeasures on 13 cryptographic smartcards
from 5 major manufacturers – all but one we tested on. Finally, we discuss what
mitigations can be applied to prevent such reverse engineering, and whether it
is possible at all.
author:
- first_name: Vojtech
full_name: Suchanek, Vojtech
last_name: Suchanek
- first_name: Jan
full_name: Jancar, Jan
last_name: Jancar
- first_name: Jan
full_name: Kvapil, Jan
last_name: Kvapil
- first_name: Petr
full_name: Svenda, Petr
last_name: Svenda
- first_name: Łukasz
full_name: Chmielewski, Łukasz
last_name: Chmielewski
citation:
ama: 'Suchanek V, Jancar J, Kvapil J, Svenda P, Chmielewski Ł. ECTester: Reverse-engineering
side-channel countermeasures of ECC implementations. IACR Transactions on Cryptographic
Hardware and Embedded Systems. 2025;2025(4):290-316. doi:10.46586/tches.v2025.i4.290-316'
apa: 'Suchanek, V., Jancar, J., Kvapil, J., Svenda, P., & Chmielewski, Ł. (2025).
ECTester: Reverse-engineering side-channel countermeasures of ECC implementations.
IACR Transactions on Cryptographic Hardware and Embedded Systems, 2025(4),
290–316. https://doi.org/10.46586/tches.v2025.i4.290-316'
bibtex: '@article{Suchanek_Jancar_Kvapil_Svenda_Chmielewski_2025, title={ECTester:
Reverse-engineering side-channel countermeasures of ECC implementations}, volume={2025},
DOI={10.46586/tches.v2025.i4.290-316},
number={4}, journal={IACR Transactions on Cryptographic Hardware and Embedded
Systems}, publisher={Universitatsbibliothek der Ruhr-Universitat Bochum}, author={Suchanek,
Vojtech and Jancar, Jan and Kvapil, Jan and Svenda, Petr and Chmielewski, Łukasz},
year={2025}, pages={290–316} }'
chicago: 'Suchanek, Vojtech, Jan Jancar, Jan Kvapil, Petr Svenda, and Łukasz Chmielewski.
“ECTester: Reverse-Engineering Side-Channel Countermeasures of ECC Implementations.”
IACR Transactions on Cryptographic Hardware and Embedded Systems 2025,
no. 4 (2025): 290–316. https://doi.org/10.46586/tches.v2025.i4.290-316.'
ieee: 'V. Suchanek, J. Jancar, J. Kvapil, P. Svenda, and Ł. Chmielewski, “ECTester:
Reverse-engineering side-channel countermeasures of ECC implementations,” IACR
Transactions on Cryptographic Hardware and Embedded Systems, vol. 2025, no.
4, pp. 290–316, 2025, doi: 10.46586/tches.v2025.i4.290-316.'
mla: 'Suchanek, Vojtech, et al. “ECTester: Reverse-Engineering Side-Channel Countermeasures
of ECC Implementations.” IACR Transactions on Cryptographic Hardware and Embedded
Systems, vol. 2025, no. 4, Universitatsbibliothek der Ruhr-Universitat Bochum,
2025, pp. 290–316, doi:10.46586/tches.v2025.i4.290-316.'
short: V. Suchanek, J. Jancar, J. Kvapil, P. Svenda, Ł. Chmielewski, IACR Transactions
on Cryptographic Hardware and Embedded Systems 2025 (2025) 290–316.
date_created: 2026-04-30T09:31:59Z
date_updated: 2026-04-30T09:32:25Z
doi: 10.46586/tches.v2025.i4.290-316
intvolume: ' 2025'
issue: '4'
page: 290-316
publication: IACR Transactions on Cryptographic Hardware and Embedded Systems
publication_identifier:
issn:
- 2569-2925
publication_status: published
publisher: Universitatsbibliothek der Ruhr-Universitat Bochum
status: public
title: 'ECTester: Reverse-engineering side-channel countermeasures of ECC implementations'
type: journal_article
user_id: '125442'
volume: 2025
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: '61164'
abstract:
- lang: eng
text: Building on and methodologically extending conceptual metaphor theory,
the article examines how personal agency as a discursively produced sociopsychological
phenomenon can be studied in elicited metaphors through a discourse-analytical
approach. More concretely, the study illustrates how early-career researchers
experience and express their agency in research writing through personal metaphors
of academic writing such as riding a roller coaster or baking a wedding cake.
A two-step discursive analysis adapts Hopper and Thompson's multidimensional approach
to linguistic transitivity to study agency in language. The analytical approach
involves both an in-depth parametrized analysis of all metaphors in the sample
and a qualitative cross-analysis of the data. The results show that the participants'
metaphors reflect both nuanced personal experiences and cultural expectations
of academic writing, the writer, and the text. This emphasizes that research writing
is not only a highly subjective practice but also one that is socially and culturally
influenced. The article argues that research on agency thus needs elaborate methodological
tools to trace discursive and sociopsychological trajectories of complex socio-cognitive
practices like academic writing. This has implications not only for the nexus
of research writing, identity, and academic enculturation but also for other fields
focusing on agency in language.
article_number: '1567498'
author:
- first_name: Andrea
full_name: Karsten, Andrea
last_name: Karsten
citation:
ama: Karsten A. Understanding personal agency through metaphor, or Why academic
writing is (not) like a roller-coaster ride. Frontiers in Language Sciences.
2025;4. doi:10.3389/flang.2025.1567498
apa: Karsten, A. (2025). Understanding personal agency through metaphor, or Why
academic writing is (not) like a roller-coaster ride. Frontiers in Language
Sciences, 4, Article 1567498. https://doi.org/10.3389/flang.2025.1567498
bibtex: '@article{Karsten_2025, title={Understanding personal agency through metaphor,
or Why academic writing is (not) like a roller-coaster ride}, volume={4}, DOI={10.3389/flang.2025.1567498},
number={1567498}, journal={Frontiers in Language Sciences}, publisher={Frontiers
Media SA}, author={Karsten, Andrea}, year={2025} }'
chicago: Karsten, Andrea. “Understanding Personal Agency through Metaphor, or Why
Academic Writing Is (Not) like a Roller-Coaster Ride.” Frontiers in Language
Sciences 4 (2025). https://doi.org/10.3389/flang.2025.1567498.
ieee: 'A. Karsten, “Understanding personal agency through metaphor, or Why academic
writing is (not) like a roller-coaster ride,” Frontiers in Language Sciences,
vol. 4, Art. no. 1567498, 2025, doi: 10.3389/flang.2025.1567498.'
mla: Karsten, Andrea. “Understanding Personal Agency through Metaphor, or Why Academic
Writing Is (Not) like a Roller-Coaster Ride.” Frontiers in Language Sciences,
vol. 4, 1567498, Frontiers Media SA, 2025, doi:10.3389/flang.2025.1567498.
short: A. Karsten, Frontiers in Language Sciences 4 (2025).
date_created: 2025-09-10T10:50:30Z
date_updated: 2026-05-06T08:37:28Z
doi: 10.3389/flang.2025.1567498
intvolume: ' 4'
publication: Frontiers in Language Sciences
publication_identifier:
issn:
- 2813-4605
publication_status: published
publisher: Frontiers Media SA
status: public
title: Understanding personal agency through metaphor, or Why academic writing is
(not) like a roller-coaster ride
type: journal_article
user_id: '53917'
volume: 4
year: '2025'
...
---
_id: '65564'
author:
- first_name: Stefan Teodorov
full_name: Lazarov, Stefan Teodorov
id: '90345'
last_name: Lazarov
orcid: 0009-0009-0892-9483
- first_name: Olcay
full_name: Türk, Olcay
last_name: Türk
- first_name: Angela
full_name: Grimminger, Angela
id: '57578'
last_name: Grimminger
- first_name: 'Petra '
full_name: 'Wagner, Petra '
last_name: Wagner
- first_name: Hendrik
full_name: Buschmeier, Hendrik
last_name: Buschmeier
citation:
ama: Lazarov ST, Türk O, Grimminger A, Wagner P, Buschmeier H. Annotation Schemes
Project A02 “Monitoring the Understanding of Explanations.” LibreCat University;
2025. doi:10.17605/OSF.IO/J2DHA
apa: Lazarov, S. T., Türk, O., Grimminger, A., Wagner, P., & Buschmeier, H.
(2025). Annotation Schemes Project A02 “Monitoring the understanding of explanations.”
LibreCat University. https://doi.org/10.17605/OSF.IO/J2DHA
bibtex: '@book{Lazarov_Türk_Grimminger_Wagner_Buschmeier_2025, title={Annotation
Schemes Project A02 “Monitoring the understanding of explanations”}, DOI={10.17605/OSF.IO/J2DHA},
publisher={LibreCat University}, author={Lazarov, Stefan Teodorov and Türk, Olcay
and Grimminger, Angela and Wagner, Petra and Buschmeier, Hendrik}, year={2025}
}'
chicago: Lazarov, Stefan Teodorov, Olcay Türk, Angela Grimminger, Petra Wagner,
and Hendrik Buschmeier. Annotation Schemes Project A02 “Monitoring the Understanding
of Explanations.” LibreCat University, 2025. https://doi.org/10.17605/OSF.IO/J2DHA.
ieee: S. T. Lazarov, O. Türk, A. Grimminger, P. Wagner, and H. Buschmeier, Annotation
Schemes Project A02 “Monitoring the understanding of explanations.” LibreCat
University, 2025.
mla: Lazarov, Stefan Teodorov, et al. Annotation Schemes Project A02 “Monitoring
the Understanding of Explanations.” LibreCat University, 2025, doi:10.17605/OSF.IO/J2DHA.
short: S.T. Lazarov, O. Türk, A. Grimminger, P. Wagner, H. Buschmeier, Annotation
Schemes Project A02 “Monitoring the Understanding of Explanations,” LibreCat University,
2025.
date_created: 2026-05-05T14:09:18Z
date_updated: 2026-05-05T14:18:35Z
doi: 10.17605/OSF.IO/J2DHA
language:
- iso: eng
project:
- _id: '112'
name: 'TRR 318; TP A02: Verstehensprozess einer Erklärung beobachten und auswerten'
publication_status: published
publisher: LibreCat University
status: public
title: Annotation Schemes Project A02 "Monitoring the understanding of explanations"
type: misc
user_id: '90345'
year: '2025'
...
---
_id: '61165'
abstract:
- lang: eng
text: Building on and methodologically extending conceptual metaphor theory,
the article examines how personal agency as a discursively produced sociopsychological
phenomenon can be studied in elicited metaphors through a discourse-analytical
approach. More concretely, the study illustrates how early-career researchers
experience and express their agency in research writing through personal metaphors
of academic writing such as riding a roller coaster or baking a wedding cake.
A two-step discursive analysis adapts Hopper and Thompson's multidimensional approach
to linguistic transitivity to study agency in language. The analytical approach
involves both an in-depth parametrized analysis of all metaphors in the sample
and a qualitative cross-analysis of the data. The results show that the participants'
metaphors reflect both nuanced personal experiences and cultural expectations
of academic writing, the writer, and the text. This emphasizes that research writing
is not only a highly subjective practice but also one that is socially and culturally
influenced. The article argues that research on agency thus needs elaborate methodological
tools to trace discursive and sociopsychological trajectories of complex socio-cognitive
practices like academic writing. This has implications not only for the nexus
of research writing, identity, and academic enculturation but also for other fields
focusing on agency in language.
article_number: '1567498'
author:
- first_name: Andrea Ramona
full_name: Karsten, Andrea Ramona
id: '53917'
last_name: Karsten
orcid: 0000-0003-0194-2000
citation:
ama: Karsten AR. Understanding personal agency through metaphor, or Why academic
writing is (not) like a roller-coaster ride. Frontiers in Language Sciences.
2025;4. doi:10.3389/flang.2025.1567498
apa: Karsten, A. R. (2025). Understanding personal agency through metaphor, or Why
academic writing is (not) like a roller-coaster ride. Frontiers in Language
Sciences, 4, Article 1567498. https://doi.org/10.3389/flang.2025.1567498
bibtex: '@article{Karsten_2025, title={Understanding personal agency through metaphor,
or Why academic writing is (not) like a roller-coaster ride}, volume={4}, DOI={10.3389/flang.2025.1567498},
number={1567498}, journal={Frontiers in Language Sciences}, publisher={Frontiers
Media SA}, author={Karsten, Andrea Ramona}, year={2025} }'
chicago: Karsten, Andrea Ramona. “Understanding Personal Agency through Metaphor,
or Why Academic Writing Is (Not) like a Roller-Coaster Ride.” Frontiers in
Language Sciences 4 (2025). https://doi.org/10.3389/flang.2025.1567498.
ieee: 'A. R. Karsten, “Understanding personal agency through metaphor, or Why academic
writing is (not) like a roller-coaster ride,” Frontiers in Language Sciences,
vol. 4, Art. no. 1567498, 2025, doi: 10.3389/flang.2025.1567498.'
mla: Karsten, Andrea Ramona. “Understanding Personal Agency through Metaphor, or
Why Academic Writing Is (Not) like a Roller-Coaster Ride.” Frontiers in Language
Sciences, vol. 4, 1567498, Frontiers Media SA, 2025, doi:10.3389/flang.2025.1567498.
short: A.R. Karsten, Frontiers in Language Sciences 4 (2025).
date_created: 2025-09-10T10:51:29Z
date_updated: 2026-05-06T08:42:08Z
doi: 10.3389/flang.2025.1567498
intvolume: ' 4'
language:
- iso: eng
project:
- _id: '120'
name: 'TRR 318: Project Area RTG - Integriertes Graduiertenkolleg'
publication: Frontiers in Language Sciences
publication_identifier:
issn:
- 2813-4605
publication_status: published
publisher: Frontiers Media SA
related_material:
link:
- relation: confirmation
url: https://www.frontiersin.org/articles/10.3389/flang.2025.1567498/full#supplementary-material
status: public
title: Understanding personal agency through metaphor, or Why academic writing is
(not) like a roller-coaster ride
type: journal_article
user_id: '53917'
volume: 4
year: '2025'
...
---
_id: '61149'
abstract:
- lang: eng
text: The use of continuous fiber-reinforced thermoplastics (FRTP) in automotive
industry increases due to their excellent material properties and possibility
of rapid processing. The scale spanning heterogeneity of their material structure
and its influence on the material behavior, however, presents significant challenges
for most joining technologies, such as self-piercing riveting (SPR). During mechanical
joining, the material structure is significantly altered within and around the
joining zone, heavily influencing the material behavior. A comprehensive understanding
of the underlying phenomena of material alteration during the SPR process is essential
as basis for validating numerical simulations. This study examines the material
structure at ten stages of a step-setting test of SPR with two FRTP sheets with
glass-fiber reinforcement. Utilizing X-ray computed tomography (CT), the damage
phenomena within different areas of the setting test are analyzed three-dimensionally
and key parameters are quantified. Dominating phenomena during the penetration
of the rivet into the laminate are fiber failure (FF), interfiber failure (IFF)
and fiber bending, while delamination, fiber kinking and roving splitting are
also observed. At the final stages, the bottom layers of the second sheet collapse
and form a bulge into the cavity of the die.
author:
- first_name: Alrik
full_name: Dargel, Alrik
id: '114764'
last_name: Dargel
- first_name: Benjamin
full_name: Gröger, Benjamin
last_name: Gröger
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Johannes
full_name: Gerritzen, Johannes
id: '105344'
last_name: Gerritzen
orcid: 0000-0002-0169-8602
- first_name: Daniel
full_name: Köhler, Daniel
id: '83408'
last_name: Köhler
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Maik
full_name: Gude, Maik
last_name: Gude
- first_name: Robert
full_name: Kupfer, Robert
last_name: Kupfer
citation:
ama: 'Dargel A, Gröger B, Schlichter MC, et al. Local Deformation and Failure of
Composites during Self-Piercing Riveting: A CT-Based Microstructure Investigation.
In: Gomes JFS, Meguid SA, eds. Proceedings of the 8th International Conference
on Integrity-Reliability-Failure (IRF2025). FEUP; 2025. doi:10.24840/978-972-752-323-8'
apa: 'Dargel, A., Gröger, B., Schlichter, M. C., Gerritzen, J., Köhler, D., Meschut,
G., Gude, M., & Kupfer, R. (2025). Local Deformation and Failure of Composites
during Self-Piercing Riveting: A CT-Based Microstructure Investigation. In J.
F. S. Gomes & S. A. Meguid (Eds.), Proceedings of the 8th International
Conference on Integrity-Reliability-Failure (IRF2025). FEUP. https://doi.org/10.24840/978-972-752-323-8'
bibtex: '@inproceedings{Dargel_Gröger_Schlichter_Gerritzen_Köhler_Meschut_Gude_Kupfer_2025,
place={Porto}, title={Local Deformation and Failure of Composites during Self-Piercing
Riveting: A CT-Based Microstructure Investigation}, DOI={10.24840/978-972-752-323-8},
booktitle={Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025)}, publisher={FEUP}, author={Dargel, Alrik and Gröger, Benjamin and Schlichter,
Malte Christian and Gerritzen, Johannes and Köhler, Daniel and Meschut, Gerson
and Gude, Maik and Kupfer, Robert}, editor={Gomes, J.F. Silva and Meguid, Shaker
A.}, year={2025} }'
chicago: 'Dargel, Alrik, Benjamin Gröger, Malte Christian Schlichter, Johannes Gerritzen,
Daniel Köhler, Gerson Meschut, Maik Gude, and Robert Kupfer. “Local Deformation
and Failure of Composites during Self-Piercing Riveting: A CT-Based Microstructure
Investigation.” In Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025), edited by J.F. Silva Gomes and Shaker A. Meguid. Porto: FEUP, 2025.
https://doi.org/10.24840/978-972-752-323-8.'
ieee: 'A. Dargel et al., “Local Deformation and Failure of Composites during
Self-Piercing Riveting: A CT-Based Microstructure Investigation,” in Proceedings
of the 8th International Conference on Integrity-Reliability-Failure (IRF2025),
Porto, 2025, doi: 10.24840/978-972-752-323-8.'
mla: 'Dargel, Alrik, et al. “Local Deformation and Failure of Composites during
Self-Piercing Riveting: A CT-Based Microstructure Investigation.” Proceedings
of the 8th International Conference on Integrity-Reliability-Failure (IRF2025),
edited by J.F. Silva Gomes and Shaker A. Meguid, FEUP, 2025, doi:10.24840/978-972-752-323-8.'
short: 'A. Dargel, B. Gröger, M.C. Schlichter, J. Gerritzen, D. Köhler, G. Meschut,
M. Gude, R. Kupfer, in: J.F.S. Gomes, S.A. Meguid (Eds.), Proceedings of the 8th
International Conference on Integrity-Reliability-Failure (IRF2025), FEUP, Porto,
2025.'
conference:
end_date: 2025-07-18
location: Porto
name: 8th International Conference on Integrity-Reliability-Failure (IRF2025)
start_date: 2025-07-15
date_created: 2025-09-08T11:52:45Z
date_updated: 2026-05-07T08:40:51Z
doi: 10.24840/978-972-752-323-8
editor:
- first_name: J.F. Silva
full_name: Gomes, J.F. Silva
last_name: Gomes
- first_name: Shaker A.
full_name: Meguid, Shaker A.
last_name: Meguid
keyword:
- self-piercing riveting
- computed tomography
- thermoplastic composites
- process-structure-interaction
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.researchgate.net/publication/395593556_LOCAL_DEFORMATION_AND_FAILURE_OF_COMPOSITES_DURING_SELF-PIERCING_RIVETING_A_CT_BASED_MICROSTRUCTURE_INVESTIGATION
oa: '1'
place: Porto
project:
- _id: '133'
name: TRR 285 - Project Area C
- _id: '148'
name: TRR 285 - Subproject C04
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
- _id: '131'
name: TRR 285 - Project Area A
- _id: '137'
name: TRR 285 - Subproject A03
- _id: '135'
name: TRR 285 - Subproject A01
publication: Proceedings of the 8th International Conference on Integrity-Reliability-Failure
(IRF2025)
publication_identifier:
isbn:
- '9789727523238'
publication_status: published
publisher: FEUP
status: public
title: 'Local Deformation and Failure of Composites during Self-Piercing Riveting:
A CT-Based Microstructure Investigation'
type: conference
user_id: '114764'
year: '2025'
...