---
_id: '45604'
article_type: letter_note
author:
- first_name: Isabel
  full_name: Steinhardt, Isabel
  id: '90339'
  last_name: Steinhardt
  orcid: https://orcid.org/0000-0002-2590-6189
- first_name: Sylvi
  full_name: Mauermeister, Sylvi
  id: '98032'
  last_name: Mauermeister
- first_name: Rebecca
  full_name: Schmidt, Rebecca
  id: '94416'
  last_name: Schmidt
  orcid: https://orcid.org/0000-0002-2516-359X
citation:
  ama: 'Steinhardt I, Mauermeister S, Schmidt R. Open Research Practices and Cultural
    Change: A Commentary on “(Why) Are Open Research Practices the Future for the
    Study of Language Learning?” <i>Language Learning</i>. Published online 2023.
    doi:<a href="https://doi.org/10.1111/lang.12583">10.1111/lang.12583</a>'
  apa: 'Steinhardt, I., Mauermeister, S., &#38; Schmidt, R. (2023). Open Research
    Practices and Cultural Change: A Commentary on “(Why) Are Open Research Practices
    the Future for the Study of Language Learning?” <i>Language Learning</i>. <a href="https://doi.org/10.1111/lang.12583">https://doi.org/10.1111/lang.12583</a>'
  bibtex: '@article{Steinhardt_Mauermeister_Schmidt_2023, title={Open Research Practices
    and Cultural Change: A Commentary on “(Why) Are Open Research Practices the Future
    for the Study of Language Learning?”}, DOI={<a href="https://doi.org/10.1111/lang.12583">10.1111/lang.12583</a>},
    journal={Language Learning}, publisher={Wiley}, author={Steinhardt, Isabel and
    Mauermeister, Sylvi and Schmidt, Rebecca}, year={2023} }'
  chicago: 'Steinhardt, Isabel, Sylvi Mauermeister, and Rebecca Schmidt. “Open Research
    Practices and Cultural Change: A Commentary on ‘(Why) Are Open Research Practices
    the Future for the Study of Language Learning?’” <i>Language Learning</i>, 2023.
    <a href="https://doi.org/10.1111/lang.12583">https://doi.org/10.1111/lang.12583</a>.'
  ieee: 'I. Steinhardt, S. Mauermeister, and R. Schmidt, “Open Research Practices
    and Cultural Change: A Commentary on ‘(Why) Are Open Research Practices the Future
    for the Study of Language Learning?,’” <i>Language Learning</i>, 2023, doi: <a
    href="https://doi.org/10.1111/lang.12583">10.1111/lang.12583</a>.'
  mla: 'Steinhardt, Isabel, et al. “Open Research Practices and Cultural Change: A
    Commentary on ‘(Why) Are Open Research Practices the Future for the Study of Language
    Learning?’” <i>Language Learning</i>, Wiley, 2023, doi:<a href="https://doi.org/10.1111/lang.12583">10.1111/lang.12583</a>.'
  short: I. Steinhardt, S. Mauermeister, R. Schmidt, Language Learning (2023).
date_created: 2023-06-14T10:52:12Z
date_updated: 2024-07-30T10:41:22Z
department:
- _id: '477'
- _id: '121'
doi: 10.1111/lang.12583
keyword:
- Open Science
- Open Science Practices
- Cultural Change
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Language Learning
publication_identifier:
  issn:
  - 0023-8333
  - 1467-9922
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'Open Research Practices and Cultural Change: A Commentary on “(Why) Are Open
  Research Practices the Future for the Study of Language Learning?”'
type: journal_article
user_id: '94416'
year: '2023'
...
---
_id: '55434'
author:
- first_name: Saskia
  full_name: Vandenbussche, Saskia
  id: '107802'
  last_name: Vandenbussche
citation:
  ama: Vandenbussche S. Heterolinguale humor in Fikry El Azzouzi’s trilogie Ayoub.
    <i>Internationale Neerlandistiek</i>. 2023;61(1):1-18. doi:<a href="https://doi.org/
    https://doi.org/10.5117/IN2023.1.001.VAND"> https://doi.org/10.5117/IN2023.1.001.VAND</a>
  apa: Vandenbussche, S. (2023). Heterolinguale humor in Fikry El Azzouzi’s trilogie
    Ayoub. <i>Internationale Neerlandistiek</i>, <i>61</i>(1), 1–18. <a href="https://doi.org/
    https://doi.org/10.5117/IN2023.1.001.VAND">https://doi.org/ https://doi.org/10.5117/IN2023.1.001.VAND</a>
  bibtex: '@article{Vandenbussche_2023, title={Heterolinguale humor in Fikry El Azzouzi’s
    trilogie Ayoub}, volume={61}, DOI={<a href="https://doi.org/ https://doi.org/10.5117/IN2023.1.001.VAND">
    https://doi.org/10.5117/IN2023.1.001.VAND</a>}, number={1}, journal={Internationale
    Neerlandistiek}, publisher={Amsterdam University Press}, author={Vandenbussche,
    Saskia}, year={2023}, pages={1–18} }'
  chicago: 'Vandenbussche, Saskia. “Heterolinguale humor in Fikry El Azzouzi’s trilogie
    Ayoub.” <i>Internationale Neerlandistiek</i> 61, no. 1 (2023): 1–18. <a href="https://doi.org/
    https://doi.org/10.5117/IN2023.1.001.VAND">https://doi.org/ https://doi.org/10.5117/IN2023.1.001.VAND</a>.'
  ieee: 'S. Vandenbussche, “Heterolinguale humor in Fikry El Azzouzi’s trilogie Ayoub,”
    <i>Internationale Neerlandistiek</i>, vol. 61, no. 1, pp. 1–18, 2023, doi: <a
    href="https://doi.org/ https://doi.org/10.5117/IN2023.1.001.VAND"> https://doi.org/10.5117/IN2023.1.001.VAND</a>.'
  mla: Vandenbussche, Saskia. “Heterolinguale humor in Fikry El Azzouzi’s trilogie
    Ayoub.” <i>Internationale Neerlandistiek</i>, vol. 61, no. 1, Amsterdam University
    Press, 2023, pp. 1–18, doi:<a href="https://doi.org/ https://doi.org/10.5117/IN2023.1.001.VAND">
    https://doi.org/10.5117/IN2023.1.001.VAND</a>.
  short: S. Vandenbussche, Internationale Neerlandistiek 61 (2023) 1–18.
date_created: 2024-07-30T10:54:13Z
date_updated: 2024-07-30T11:15:51Z
ddc:
- '890'
doi: ' https://doi.org/10.5117/IN2023.1.001.VAND'
extern: '1'
file:
- access_level: open_access
  content_type: application/pdf
  creator: saskiav
  date_created: 2024-07-30T10:54:09Z
  date_updated: 2024-07-30T10:54:09Z
  file_id: '55435'
  file_name: IN2023.1.001.VAND.pdf
  file_size: 206091
  relation: main_file
file_date_updated: 2024-07-30T10:54:09Z
has_accepted_license: '1'
intvolume: '        61'
issue: '1'
language:
- iso: dut
oa: '1'
page: 1-18
publication: Internationale Neerlandistiek
publication_status: published
publisher: Amsterdam University Press
quality_controlled: '1'
status: public
title: Heterolinguale humor in Fikry El Azzouzi's trilogie Ayoub
type: journal_article
user_id: '107802'
volume: 61
year: '2023'
...
---
_id: '54428'
abstract:
- lang: eng
  text: The article shows using the examples of the novels GRM. Brainfuck by Sibylle
    Berg and Quality-Land by Marc-Uwe Kling how concepts of diversity can turn into
    normative ideas about groups. Diversity as a positively valued descriptive category
    of societies aims to influence ideas about the normality of language and the cultural
    composition of societies. However, algorithmic systems based on artificial intelligence
    in particular can contribute to the separation of constructed groups. Quite contrary
    to the goals of an open and pluralistic society, ruptures in social groups can
    be strengthened in this way.
author:
- first_name: Swen
  full_name: Schulte Eickholt, Swen
  id: '7117'
  last_name: Schulte Eickholt
citation:
  ama: 'Schulte Eickholt S. Normative Diversität? Nahe Zukunft bei Sibylle Berg und
    Marc-Uwe Kling. In: Cosan L, Bazarkaya OK, Tekin H, eds. <i>Germanistik im Wandel
    1. Neue Einsichten und Perspektiven in der Literaturwissenschaft</i>. Logos; 2023:65-75.'
  apa: Schulte Eickholt, S. (2023). Normative Diversität? Nahe Zukunft bei Sibylle
    Berg und Marc-Uwe Kling. In L. Cosan, O. K. Bazarkaya, &#38; H. Tekin (Eds.),
    <i>Germanistik im Wandel 1. Neue Einsichten und Perspektiven in der Literaturwissenschaft</i>
    (pp. 65–75). Logos.
  bibtex: '@inbook{Schulte Eickholt_2023, place={Berlin}, title={Normative Diversität?
    Nahe Zukunft bei Sibylle Berg und Marc-Uwe Kling}, booktitle={Germanistik im Wandel
    1. Neue Einsichten und Perspektiven in der Literaturwissenschaft}, publisher={Logos},
    author={Schulte Eickholt, Swen}, editor={Cosan, Leyla and Bazarkaya, Onur Kemal
    and Tekin, Habib}, year={2023}, pages={65–75} }'
  chicago: 'Schulte Eickholt, Swen. “Normative Diversität? Nahe Zukunft bei Sibylle
    Berg und Marc-Uwe Kling.” In <i>Germanistik im Wandel 1. Neue Einsichten und Perspektiven
    in der Literaturwissenschaft</i>, edited by Leyla Cosan, Onur Kemal Bazarkaya,
    and Habib Tekin, 65–75. Berlin: Logos, 2023.'
  ieee: 'S. Schulte Eickholt, “Normative Diversität? Nahe Zukunft bei Sibylle Berg
    und Marc-Uwe Kling,” in <i>Germanistik im Wandel 1. Neue Einsichten und Perspektiven
    in der Literaturwissenschaft</i>, L. Cosan, O. K. Bazarkaya, and H. Tekin, Eds.
    Berlin: Logos, 2023, pp. 65–75.'
  mla: Schulte Eickholt, Swen. “Normative Diversität? Nahe Zukunft bei Sibylle Berg
    und Marc-Uwe Kling.” <i>Germanistik im Wandel 1. Neue Einsichten und Perspektiven
    in der Literaturwissenschaft</i>, edited by Leyla Cosan et al., Logos, 2023, pp.
    65–75.
  short: 'S. Schulte Eickholt, in: L. Cosan, O.K. Bazarkaya, H. Tekin (Eds.), Germanistik
    im Wandel 1. Neue Einsichten und Perspektiven in der Literaturwissenschaft, Logos,
    Berlin, 2023, pp. 65–75.'
date_created: 2024-05-23T09:25:19Z
date_updated: 2024-07-31T07:51:08Z
department:
- _id: '465'
editor:
- first_name: Leyla
  full_name: Cosan, Leyla
  last_name: Cosan
- first_name: Onur Kemal
  full_name: Bazarkaya, Onur Kemal
  last_name: Bazarkaya
- first_name: Habib
  full_name: Tekin, Habib
  last_name: Tekin
keyword:
- diversity
- normality
- contemporary literature
- algorithm
- distopia
- Diversität
- Normalität
- Gegenwartsliteratur
- Algorithmus
- Dystopie
language:
- iso: ger
page: 65-75
place: Berlin
publication: Germanistik im Wandel 1. Neue Einsichten und Perspektiven in der Literaturwissenschaft
publication_status: published
publisher: Logos
quality_controlled: '1'
status: public
title: Normative Diversität? Nahe Zukunft bei Sibylle Berg und Marc-Uwe Kling
type: book_chapter
user_id: '7117'
year: '2023'
...
---
_id: '34803'
article_number: '50'
author:
- first_name: Elena
  full_name: Celledoni, Elena
  last_name: Celledoni
- first_name: Helge
  full_name: Glöckner, Helge
  id: '178'
  last_name: Glöckner
- first_name: Jørgen
  full_name: Riseth, Jørgen
  last_name: Riseth
- first_name: Alexander
  full_name: Schmeding, Alexander
  last_name: Schmeding
citation:
  ama: Celledoni E, Glöckner H, Riseth J, Schmeding A. Deep neural networks on diffeomorphism
    groups for optimal shape reparametrization. <i>BIT Numerical Mathematics</i>.
    2023;63. doi:<a href="https://doi.org/10.1007/s10543-023-00989-05">10.1007/s10543-023-00989-05</a>
  apa: Celledoni, E., Glöckner, H., Riseth, J., &#38; Schmeding, A. (2023). Deep neural
    networks on diffeomorphism groups for optimal shape reparametrization. <i>BIT
    Numerical Mathematics</i>, <i>63</i>, Article 50. <a href="https://doi.org/10.1007/s10543-023-00989-05">https://doi.org/10.1007/s10543-023-00989-05</a>
  bibtex: '@article{Celledoni_Glöckner_Riseth_Schmeding_2023, title={Deep neural networks
    on diffeomorphism groups for optimal shape reparametrization}, volume={63}, DOI={<a
    href="https://doi.org/10.1007/s10543-023-00989-05">10.1007/s10543-023-00989-05</a>},
    number={50}, journal={BIT Numerical Mathematics}, publisher={Springer}, author={Celledoni,
    Elena and Glöckner, Helge and Riseth, Jørgen and Schmeding, Alexander}, year={2023}
    }'
  chicago: Celledoni, Elena, Helge Glöckner, Jørgen Riseth, and Alexander Schmeding.
    “Deep Neural Networks on Diffeomorphism Groups for Optimal Shape Reparametrization.”
    <i>BIT Numerical Mathematics</i> 63 (2023). <a href="https://doi.org/10.1007/s10543-023-00989-05">https://doi.org/10.1007/s10543-023-00989-05</a>.
  ieee: 'E. Celledoni, H. Glöckner, J. Riseth, and A. Schmeding, “Deep neural networks
    on diffeomorphism groups for optimal shape reparametrization,” <i>BIT Numerical
    Mathematics</i>, vol. 63, Art. no. 50, 2023, doi: <a href="https://doi.org/10.1007/s10543-023-00989-05">10.1007/s10543-023-00989-05</a>.'
  mla: Celledoni, Elena, et al. “Deep Neural Networks on Diffeomorphism Groups for
    Optimal Shape Reparametrization.” <i>BIT Numerical Mathematics</i>, vol. 63, 50,
    Springer, 2023, doi:<a href="https://doi.org/10.1007/s10543-023-00989-05">10.1007/s10543-023-00989-05</a>.
  short: E. Celledoni, H. Glöckner, J. Riseth, A. Schmeding, BIT Numerical Mathematics
    63 (2023).
date_created: 2022-12-22T07:37:20Z
date_updated: 2024-08-09T08:48:06Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
doi: 10.1007/s10543-023-00989-05
external_id:
  arxiv:
  - '2207.11141'
intvolume: '        63'
language:
- iso: eng
publication: BIT Numerical Mathematics
publisher: Springer
quality_controlled: '1'
status: public
title: Deep neural networks on diffeomorphism groups for optimal shape reparametrization
type: journal_article
user_id: '178'
volume: 63
year: '2023'
...
---
_id: '34805'
abstract:
- lang: eng
  text: "Let $E$ be a finite-dimensional real vector space and $M\\subseteq E$ be
    a\r\nconvex polytope with non-empty interior. We turn the group of all\r\n$C^\\infty$-diffeomorphisms
    of $M$ into a regular Lie group."
author:
- first_name: Helge
  full_name: Glöckner, Helge
  id: '178'
  last_name: Glöckner
citation:
  ama: Glöckner H. Diffeomorphism groups of convex polytopes. <i>Journal of Convex
    Analysis</i>. 2023;30(1):343-358.
  apa: Glöckner, H. (2023). Diffeomorphism groups of convex polytopes. <i>Journal
    of Convex Analysis</i>, <i>30</i>(1), 343–358.
  bibtex: '@article{Glöckner_2023, title={Diffeomorphism groups of convex polytopes},
    volume={30}, number={1}, journal={Journal of Convex Analysis}, publisher={Heldermann},
    author={Glöckner, Helge}, year={2023}, pages={343–358} }'
  chicago: 'Glöckner, Helge. “Diffeomorphism Groups of Convex Polytopes.” <i>Journal
    of Convex Analysis</i> 30, no. 1 (2023): 343–58.'
  ieee: H. Glöckner, “Diffeomorphism groups of convex polytopes,” <i>Journal of Convex
    Analysis</i>, vol. 30, no. 1, pp. 343–358, 2023.
  mla: Glöckner, Helge. “Diffeomorphism Groups of Convex Polytopes.” <i>Journal of
    Convex Analysis</i>, vol. 30, no. 1, Heldermann, 2023, pp. 343–58.
  short: H. Glöckner, Journal of Convex Analysis 30 (2023) 343–358.
date_created: 2022-12-22T07:45:13Z
date_updated: 2024-08-09T08:49:17Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
external_id:
  arxiv:
  - '2203.09285'
intvolume: '        30'
issue: '1'
language:
- iso: eng
page: 343-358
publication: Journal of Convex Analysis
publisher: Heldermann
quality_controlled: '1'
status: public
title: Diffeomorphism groups of convex polytopes
type: journal_article
user_id: '178'
volume: 30
year: '2023'
...
---
_id: '34801'
author:
- first_name: Helge
  full_name: Glöckner, Helge
  id: '178'
  last_name: Glöckner
- first_name: Luis
  full_name: Tárrega, Luis
  last_name: Tárrega
citation:
  ama: Glöckner H, Tárrega L. Mapping groups associated with real-valued function
    spaces and direct limits of Sobolev-Lie groups . <i>Journal of Lie Theory</i>.
    2023;33(1):271-296.
  apa: Glöckner, H., &#38; Tárrega, L. (2023). Mapping groups associated with real-valued
    function spaces and direct limits of Sobolev-Lie groups . <i>Journal of Lie Theory</i>,
    <i>33</i>(1), 271–296.
  bibtex: '@article{Glöckner_Tárrega_2023, title={Mapping groups associated with real-valued
    function spaces and direct limits of Sobolev-Lie groups }, volume={33}, number={1},
    journal={Journal of Lie Theory}, publisher={Heldermann}, author={Glöckner, Helge
    and Tárrega, Luis}, year={2023}, pages={271–296} }'
  chicago: 'Glöckner, Helge, and Luis Tárrega. “Mapping Groups Associated with Real-Valued
    Function Spaces and Direct Limits of Sobolev-Lie Groups .” <i>Journal of Lie Theory</i>
    33, no. 1 (2023): 271–96.'
  ieee: H. Glöckner and L. Tárrega, “Mapping groups associated with real-valued function
    spaces and direct limits of Sobolev-Lie groups ,” <i>Journal of Lie Theory</i>,
    vol. 33, no. 1, pp. 271–296, 2023.
  mla: Glöckner, Helge, and Luis Tárrega. “Mapping Groups Associated with Real-Valued
    Function Spaces and Direct Limits of Sobolev-Lie Groups .” <i>Journal of Lie Theory</i>,
    vol. 33, no. 1, Heldermann, 2023, pp. 271–96.
  short: H. Glöckner, L. Tárrega, Journal of Lie Theory 33 (2023) 271–296.
date_created: 2022-12-22T07:23:57Z
date_updated: 2024-08-09T08:48:51Z
department:
- _id: '10'
- _id: '87'
- _id: '93'
external_id:
  arxiv:
  - '2210.01246'
intvolume: '        33'
issue: '1'
language:
- iso: eng
page: 271-296
publication: Journal of Lie Theory
publisher: Heldermann
quality_controlled: '1'
status: public
title: 'Mapping groups associated with real-valued function spaces and direct limits
  of Sobolev-Lie groups '
type: journal_article
user_id: '178'
volume: 33
year: '2023'
...
---
_id: '42163'
abstract:
- lang: eng
  text: 'The article shows how to learn models of dynamical systems from data which
    are governed by an unknown variational PDE. Rather than employing reduction techniques,
    we learn a discrete field theory governed by a discrete Lagrangian density $L_d$
    that is modelled as a neural network. Careful regularisation of the loss function
    for training $L_d$ is necessary to obtain a field theory that is suitable for
    numerical computations: we derive a regularisation term which optimises the solvability
    of the discrete Euler--Lagrange equations. Secondly, we develop a method to find
    solutions to machine learned discrete field theories which constitute travelling
    waves of the underlying continuous PDE.'
author:
- first_name: Christian
  full_name: Offen, Christian
  id: '85279'
  last_name: Offen
  orcid: 0000-0002-5940-8057
- first_name: Sina
  full_name: Ober-Blöbaum, Sina
  id: '16494'
  last_name: Ober-Blöbaum
citation:
  ama: 'Offen C, Ober-Blöbaum S. Learning discrete Lagrangians for variational PDEs
    from data and detection of travelling waves. In: Nielsen F, Barbaresco F, eds.
    <i>Geometric Science of Information</i>. Vol 14071. Lecture Notes in Computer
    Science (LNCS). Springer, Cham.; 2023:569-579. doi:<a href="https://doi.org/10.1007/978-3-031-38271-0_57">10.1007/978-3-031-38271-0_57</a>'
  apa: Offen, C., &#38; Ober-Blöbaum, S. (2023). Learning discrete Lagrangians for
    variational PDEs from data and detection of travelling waves. In F. Nielsen &#38;
    F. Barbaresco (Eds.), <i>Geometric Science of Information</i> (Vol. 14071, pp.
    569–579). Springer, Cham. <a href="https://doi.org/10.1007/978-3-031-38271-0_57">https://doi.org/10.1007/978-3-031-38271-0_57</a>
  bibtex: '@inproceedings{Offen_Ober-Blöbaum_2023, series={Lecture Notes in Computer
    Science (LNCS)}, title={Learning discrete Lagrangians for variational PDEs from
    data and detection of travelling waves}, volume={14071}, DOI={<a href="https://doi.org/10.1007/978-3-031-38271-0_57">10.1007/978-3-031-38271-0_57</a>},
    booktitle={Geometric Science of Information}, publisher={Springer, Cham.}, author={Offen,
    Christian and Ober-Blöbaum, Sina}, editor={Nielsen, F and Barbaresco, F}, year={2023},
    pages={569–579}, collection={Lecture Notes in Computer Science (LNCS)} }'
  chicago: Offen, Christian, and Sina Ober-Blöbaum. “Learning Discrete Lagrangians
    for Variational PDEs from Data and Detection of Travelling Waves.” In <i>Geometric
    Science of Information</i>, edited by F Nielsen and F Barbaresco, 14071:569–79.
    Lecture Notes in Computer Science (LNCS). Springer, Cham., 2023. <a href="https://doi.org/10.1007/978-3-031-38271-0_57">https://doi.org/10.1007/978-3-031-38271-0_57</a>.
  ieee: 'C. Offen and S. Ober-Blöbaum, “Learning discrete Lagrangians for variational
    PDEs from data and detection of travelling waves,” in <i>Geometric Science of
    Information</i>, Saint-Malo, Palais du Grand Large, France, 2023, vol. 14071,
    pp. 569–579, doi: <a href="https://doi.org/10.1007/978-3-031-38271-0_57">10.1007/978-3-031-38271-0_57</a>.'
  mla: Offen, Christian, and Sina Ober-Blöbaum. “Learning Discrete Lagrangians for
    Variational PDEs from Data and Detection of Travelling Waves.” <i>Geometric Science
    of Information</i>, edited by F Nielsen and F Barbaresco, vol. 14071, Springer,
    Cham., 2023, pp. 569–79, doi:<a href="https://doi.org/10.1007/978-3-031-38271-0_57">10.1007/978-3-031-38271-0_57</a>.
  short: 'C. Offen, S. Ober-Blöbaum, in: F. Nielsen, F. Barbaresco (Eds.), Geometric
    Science of Information, Springer, Cham., 2023, pp. 569–579.'
conference:
  end_date: 2023-09-01
  location: Saint-Malo, Palais du Grand Large, France
  name: '  GSI''23 6th International Conference on Geometric Science of Information'
  start_date: 2023-08-30
date_created: 2023-02-16T11:32:48Z
date_updated: 2024-08-12T13:46:29Z
ddc:
- '510'
department:
- _id: '636'
doi: 10.1007/978-3-031-38271-0_57
editor:
- first_name: F
  full_name: Nielsen, F
  last_name: Nielsen
- first_name: F
  full_name: Barbaresco, F
  last_name: Barbaresco
external_id:
  arxiv:
  - '2302.08232 '
file:
- access_level: open_access
  content_type: application/pdf
  creator: coffen
  date_created: 2023-08-02T12:04:17Z
  date_updated: 2023-08-02T12:04:17Z
  description: |-
    The article shows how to learn models of dynamical systems
    from data which are governed by an unknown variational PDE. Rather
    than employing reduction techniques, we learn a discrete field theory
    governed by a discrete Lagrangian density Ld that is modelled as a neural network. Careful regularisation of the loss function for training Ld is
    necessary to obtain a field theory that is suitable for numerical computations: we derive a regularisation term which optimises the solvability of
    the discrete Euler–Lagrange equations. Secondly, we develop a method to
    find solutions to machine learned discrete field theories which constitute
    travelling waves of the underlying continuous PDE.
  file_id: '46273'
  file_name: LDensityLearning.pdf
  file_size: 1938962
  relation: main_file
  title: Learning discrete Lagrangians for variational PDEs from data and detection
    of travelling waves
file_date_updated: 2023-08-02T12:04:17Z
has_accepted_license: '1'
intvolume: '     14071'
keyword:
- System identification
- discrete Lagrangians
- travelling waves
language:
- iso: eng
oa: '1'
page: 569-579
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Geometric Science of Information
publication_identifier:
  eisbn:
  - 978-3-031-38271-0
publication_status: published
publisher: Springer, Cham.
quality_controlled: '1'
related_material:
  link:
  - description: GitHub
    relation: software
    url: https://github.com/Christian-Offen/LagrangianDensityML
series_title: Lecture Notes in Computer Science (LNCS)
status: public
title: Learning discrete Lagrangians for variational PDEs from data and detection
  of travelling waves
type: conference
user_id: '85279'
volume: 14071
year: '2023'
...
---
_id: '47116'
abstract:
- lang: eng
  text: This paper presents a comprehensive study on diagnosing a spacecraft propulsion
    system utilizing data provided by the Prognostics and Health Management (PHM)
    society, specifically obtained as part of the Asia-Pacific PHM conference’s data
    challenge 2023. The objective of the challenge is to identify and diagnose known
    faults as well as unknown anomalies in the spacecraft’s propulsion system, which
    is critical for ensuring the spacecraft’s proper functionality and safety. To
    address this challenge, the proposed method follows a systematic approach of feature
    extraction, feature selection, and model development. The models employed in this
    study are kMeans clustering and decision trees combined to ensembles, enriched
    with expert knowledge. With the method presented, our team was capable of reaching
    high accuracy in identifying anomalies as well as diagnosing faults, resulting
    in attaining the seventh place with a score of 93.08 %.
author:
- first_name: Osarenren Kennedy
  full_name: Aimiyekagbon, Osarenren Kennedy
  id: '9557'
  last_name: Aimiyekagbon
- first_name: Alexander
  full_name: Löwen, Alexander
  id: '47233'
  last_name: Löwen
- first_name: Amelie
  full_name: Bender, Amelie
  id: '54290'
  last_name: Bender
- first_name: Lars
  full_name: Muth, Lars
  id: '77313'
  last_name: Muth
  orcid: 0000-0002-2938-5616
- first_name: Walter
  full_name: Sextro, Walter
  id: '21220'
  last_name: Sextro
citation:
  ama: 'Aimiyekagbon OK, Löwen A, Bender A, Muth L, Sextro W. Expert-Informed Hierarchical
    Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System. In: <i>Proceedings
    of the Asia Pacific Conference of the PHM Society 2023 </i>. Vol 4. ; 2023. doi:<a
    href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>'
  apa: Aimiyekagbon, O. K., Löwen, A., Bender, A., Muth, L., &#38; Sextro, W. (2023).
    Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft
    Propulsion System. <i>Proceedings of the Asia Pacific Conference of the PHM Society
    2023 </i>, <i>4</i>(1). <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>
  bibtex: '@inproceedings{Aimiyekagbon_Löwen_Bender_Muth_Sextro_2023, title={Expert-Informed
    Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System},
    volume={4}, DOI={<a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>},
    number={1}, booktitle={Proceedings of the Asia Pacific Conference of the PHM Society
    2023 }, author={Aimiyekagbon, Osarenren Kennedy and Löwen, Alexander and Bender,
    Amelie and Muth, Lars and Sextro, Walter}, year={2023} }'
  chicago: Aimiyekagbon, Osarenren Kennedy, Alexander Löwen, Amelie Bender, Lars Muth,
    and Walter Sextro. “Expert-Informed Hierarchical Diagnostics of Multiple Fault
    Modes of a Spacecraft Propulsion System.” In <i>Proceedings of the Asia Pacific
    Conference of the PHM Society 2023 </i>, Vol. 4, 2023. <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">https://doi.org/10.36001/phmap.2023.v4i1.3596</a>.
  ieee: 'O. K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, and W. Sextro, “Expert-Informed
    Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft Propulsion System,”
    in <i>Proceedings of the Asia Pacific Conference of the PHM Society 2023 </i>,
    2023, vol. 4, no. 1, doi: <a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>.'
  mla: Aimiyekagbon, Osarenren Kennedy, et al. “Expert-Informed Hierarchical Diagnostics
    of Multiple Fault Modes of a Spacecraft Propulsion System.” <i>Proceedings of
    the Asia Pacific Conference of the PHM Society 2023 </i>, vol. 4, no. 1, 2023,
    doi:<a href="https://doi.org/10.36001/phmap.2023.v4i1.3596">10.36001/phmap.2023.v4i1.3596</a>.
  short: 'O.K. Aimiyekagbon, A. Löwen, A. Bender, L. Muth, W. Sextro, in: Proceedings
    of the Asia Pacific Conference of the PHM Society 2023 , 2023.'
date_created: 2023-09-18T07:52:32Z
date_updated: 2024-08-19T07:39:12Z
department:
- _id: '151'
doi: 10.36001/phmap.2023.v4i1.3596
intvolume: '         4'
issue: '1'
keyword:
- PHM
- Fault Diagnostics
- Multiple Fault Modes
- Expert-Informed Diagnostics
- Anomaly Detection
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.papers.phmsociety.org/index.php/phmap/article/view/3596
oa: '1'
publication: 'Proceedings of the Asia Pacific Conference of the PHM Society 2023 '
quality_controlled: '1'
status: public
title: Expert-Informed Hierarchical Diagnostics of Multiple Fault Modes of a Spacecraft
  Propulsion System
type: conference
user_id: '9557'
volume: 4
year: '2023'
...
---
_id: '44502'
abstract:
- lang: eng
  text: In order to follow the 1.5 degree path of the Paris Climate Agreement, drastic
    greenhouse gas reduction measures are needed in the transport sector. The potential
    of public transport and new mobility services to reduce transport-related greenhouse
    gas emissions cannot yet be fully exploited, especially in rural regions. This
    paper presents the concept of an innovative mobility system, called NeMo.bil,
    that intends to fill the gap between individual and public transport to create
    a demand-oriented and sustainable mobility offer. The concept is based on convoy
    formation of autonomously driving lightweight vehicles serving the first and last
    mile and a larger towing vehicle carrying enough power and energy to move the
    convoy over longer distances at higher speeds. This combination of two different
    vehicles, intelligently controlled by a digital ecosystem, aims to significantly
    increasing energy, resource and cost efficiency. Based on an analysis of previous
    approaches for innovative mobility solutions, the concept is derived from a technical
    and sociological perspective and its potential for reducing energy demand is calculated.
author:
- first_name: Moritz
  full_name: Ostermann, Moritz
  id: '44763'
  last_name: Ostermann
  orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Jonathan
  full_name: Behm, Jonathan
  id: '50525'
  last_name: Behm
- first_name: Thorsten
  full_name: Marten, Thorsten
  id: '338'
  last_name: Marten
  orcid: 0009-0001-6433-7839
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Johannes
  full_name: Weyer, Johannes
  last_name: Weyer
- first_name: Kay
  full_name: Cepera, Kay
  last_name: Cepera
- first_name: Fabian
  full_name: Adelt, Fabian
  last_name: Adelt
citation:
  ama: 'Ostermann M, Behm J, Marten T, et al. Individualization of Public Transport
    – Integration of Technical and Social Dimensions of Sustainable Mobility. In:
    Proff H, ed. <i>Towards the New Normal in Mobility</i>. Springer Fachmedien Wiesbaden;
    2023. doi:<a href="https://doi.org/10.1007/978-3-658-39438-7_25">10.1007/978-3-658-39438-7_25</a>'
  apa: Ostermann, M., Behm, J., Marten, T., Tröster, T., Weyer, J., Cepera, K., &#38;
    Adelt, F. (2023). Individualization of Public Transport – Integration of Technical
    and Social Dimensions of Sustainable Mobility. In H. Proff (Ed.), <i>Towards the
    New Normal in Mobility</i>. Springer Fachmedien Wiesbaden. <a href="https://doi.org/10.1007/978-3-658-39438-7_25">https://doi.org/10.1007/978-3-658-39438-7_25</a>
  bibtex: '@inbook{Ostermann_Behm_Marten_Tröster_Weyer_Cepera_Adelt_2023, place={Wiesbaden},
    title={Individualization of Public Transport – Integration of Technical and Social
    Dimensions of Sustainable Mobility}, DOI={<a href="https://doi.org/10.1007/978-3-658-39438-7_25">10.1007/978-3-658-39438-7_25</a>},
    booktitle={Towards the New Normal in Mobility}, publisher={Springer Fachmedien
    Wiesbaden}, author={Ostermann, Moritz and Behm, Jonathan and Marten, Thorsten
    and Tröster, Thomas and Weyer, Johannes and Cepera, Kay and Adelt, Fabian}, editor={Proff,
    Heike}, year={2023} }'
  chicago: 'Ostermann, Moritz, Jonathan Behm, Thorsten Marten, Thomas Tröster, Johannes
    Weyer, Kay Cepera, and Fabian Adelt. “Individualization of Public Transport –
    Integration of Technical and Social Dimensions of Sustainable Mobility.” In <i>Towards
    the New Normal in Mobility</i>, edited by Heike Proff. Wiesbaden: Springer Fachmedien
    Wiesbaden, 2023. <a href="https://doi.org/10.1007/978-3-658-39438-7_25">https://doi.org/10.1007/978-3-658-39438-7_25</a>.'
  ieee: 'M. Ostermann <i>et al.</i>, “Individualization of Public Transport – Integration
    of Technical and Social Dimensions of Sustainable Mobility,” in <i>Towards the
    New Normal in Mobility</i>, H. Proff, Ed. Wiesbaden: Springer Fachmedien Wiesbaden,
    2023.'
  mla: Ostermann, Moritz, et al. “Individualization of Public Transport – Integration
    of Technical and Social Dimensions of Sustainable Mobility.” <i>Towards the New
    Normal in Mobility</i>, edited by Heike Proff, Springer Fachmedien Wiesbaden,
    2023, doi:<a href="https://doi.org/10.1007/978-3-658-39438-7_25">10.1007/978-3-658-39438-7_25</a>.
  short: 'M. Ostermann, J. Behm, T. Marten, T. Tröster, J. Weyer, K. Cepera, F. Adelt,
    in: H. Proff (Ed.), Towards the New Normal in Mobility, Springer Fachmedien Wiesbaden,
    Wiesbaden, 2023.'
conference:
  end_date: 2022-06-23
  location: Duisburg
  name: 14. Wissenschaftsforum Mobilität
  start_date: 2022-06-23
date_created: 2023-05-05T07:19:14Z
date_updated: 2024-08-23T06:32:38Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.1007/978-3-658-39438-7_25
editor:
- first_name: Heike
  full_name: Proff, Heike
  last_name: Proff
language:
- iso: eng
place: Wiesbaden
publication: Towards the New Normal in Mobility
publication_identifier:
  isbn:
  - '9783658394370'
  - '9783658394387'
publication_status: published
publisher: Springer Fachmedien Wiesbaden
quality_controlled: '1'
status: public
title: Individualization of Public Transport – Integration of Technical and Social
  Dimensions of Sustainable Mobility
type: book_chapter
user_id: '44763'
year: '2023'
...
---
_id: '36839'
author:
- first_name: Stefan
  full_name: Neumann, Stefan
  id: '54897'
  last_name: Neumann
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
- first_name: Mortaza
  full_name: Otroshi, Mortaza
  id: '71269'
  last_name: Otroshi
  orcid: 0000-0002-8652-9209
- first_name: Florian
  full_name: Kneuper, Florian
  last_name: Kneuper
- first_name: Andre
  full_name: Schulze, Andre
  last_name: Schulze
- first_name: Erman
  full_name: Tekkaya, Erman
  last_name: Tekkaya
citation:
  ama: Neumann S, Meschut G, Otroshi M, Kneuper F, Schulze A, Tekkaya E. Mechanically
    Joined Extrusion Profiles for Battery Trays.
  apa: Neumann, S., Meschut, G., Otroshi, M., Kneuper, F., Schulze, A., &#38; Tekkaya,
    E. (n.d.). <i>Mechanically Joined Extrusion Profiles for Battery Trays</i>.
  bibtex: '@inproceedings{Neumann_Meschut_Otroshi_Kneuper_Schulze_Tekkaya, title={Mechanically
    Joined Extrusion Profiles for Battery Trays}, author={Neumann, Stefan and Meschut,
    Gerson and Otroshi, Mortaza and Kneuper, Florian and Schulze, Andre and Tekkaya,
    Erman} }'
  chicago: Neumann, Stefan, Gerson Meschut, Mortaza Otroshi, Florian Kneuper, Andre
    Schulze, and Erman Tekkaya. “Mechanically Joined Extrusion Profiles for Battery
    Trays,” n.d.
  ieee: S. Neumann, G. Meschut, M. Otroshi, F. Kneuper, A. Schulze, and E. Tekkaya,
    “Mechanically Joined Extrusion Profiles for Battery Trays.”
  mla: Neumann, Stefan, et al. <i>Mechanically Joined Extrusion Profiles for Battery
    Trays</i>.
  short: 'S. Neumann, G. Meschut, M. Otroshi, F. Kneuper, A. Schulze, E. Tekkaya,
    in: n.d.'
date_created: 2023-01-14T14:38:24Z
date_updated: 2023-01-17T13:24:19Z
department:
- _id: '157'
language:
- iso: eng
publication_status: submitted
quality_controlled: '1'
status: public
title: Mechanically Joined Extrusion Profiles for Battery Trays
type: conference
user_id: '54897'
year: '2023'
...
---
_id: '42636'
abstract:
- lang: eng
  text: <jats:p> Laser additive manufacturing processes are used for the production
    of highly complex geometric structures due to their high geometric freedom. Additive
    manufacturing processes, in particular powder-based selective laser melting, are
    used to produce metallic additive manufactured components for the automotive and
    aerospace industries. Different materials are often joined together to realize
    sustainable lightweight construction. The production of such mixed construction
    joints is often realized using mechanical joining technology (e.g. self-piercing
    riveting). However, there is currently very little experience with the mechanical
    joining of metallic additive manufacturing components. Furthermore, there is insufficient
    knowledge about the effects that occur during the mechanical joining of additive
    manufacturing components. In this article, a method is presented to investigate
    the joinability of additively manufactured components with conventionally manufactured
    components using a numerical simulation of the self-piercing riveting process.
    For this purpose, the additive manufacturing materials are characterized experimentally,
    the simulation model is configured, and the joining process with additive manufacturing
    materials is represented in the numerical simulation. Furthermore, the influence
    of the building direction on the mechanical properties is shown using miniature
    tensile specimens. Besides the configuration of the simulation model, the influence
    of heat treatment on the self-piercing riveting process is presented. </jats:p>
article_number: '146442072311582'
author:
- first_name: Per
  full_name: Heyser, Per
  id: '40450'
  last_name: Heyser
- first_name: Rudolf
  full_name: Petker, Rudolf
  last_name: Petker
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: 'Heyser P, Petker R, Meschut G. Development of a numerical simulation model
    for self-piercing riveting of additive manufactured AlSi10Mg. <i>Proceedings of
    the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
    and Applications</i>. Published online 2023. doi:<a href="https://doi.org/10.1177/14644207231158213">10.1177/14644207231158213</a>'
  apa: 'Heyser, P., Petker, R., &#38; Meschut, G. (2023). Development of a numerical
    simulation model for self-piercing riveting of additive manufactured AlSi10Mg.
    <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
    Materials: Design and Applications</i>, Article 146442072311582. <a href="https://doi.org/10.1177/14644207231158213">https://doi.org/10.1177/14644207231158213</a>'
  bibtex: '@article{Heyser_Petker_Meschut_2023, title={Development of a numerical
    simulation model for self-piercing riveting of additive manufactured AlSi10Mg},
    DOI={<a href="https://doi.org/10.1177/14644207231158213">10.1177/14644207231158213</a>},
    number={146442072311582}, journal={Proceedings of the Institution of Mechanical
    Engineers, Part L: Journal of Materials: Design and Applications}, publisher={SAGE
    Publications}, author={Heyser, Per and Petker, Rudolf and Meschut, Gerson}, year={2023}
    }'
  chicago: 'Heyser, Per, Rudolf Petker, and Gerson Meschut. “Development of a Numerical
    Simulation Model for Self-Piercing Riveting of Additive Manufactured AlSi10Mg.”
    <i>Proceedings of the Institution of Mechanical Engineers, Part L: Journal of
    Materials: Design and Applications</i>, 2023. <a href="https://doi.org/10.1177/14644207231158213">https://doi.org/10.1177/14644207231158213</a>.'
  ieee: 'P. Heyser, R. Petker, and G. Meschut, “Development of a numerical simulation
    model for self-piercing riveting of additive manufactured AlSi10Mg,” <i>Proceedings
    of the Institution of Mechanical Engineers, Part L: Journal of Materials: Design
    and Applications</i>, Art. no. 146442072311582, 2023, doi: <a href="https://doi.org/10.1177/14644207231158213">10.1177/14644207231158213</a>.'
  mla: 'Heyser, Per, et al. “Development of a Numerical Simulation Model for Self-Piercing
    Riveting of Additive Manufactured AlSi10Mg.” <i>Proceedings of the Institution
    of Mechanical Engineers, Part L: Journal of Materials: Design and Applications</i>,
    146442072311582, SAGE Publications, 2023, doi:<a href="https://doi.org/10.1177/14644207231158213">10.1177/14644207231158213</a>.'
  short: 'P. Heyser, R. Petker, G. Meschut, Proceedings of the Institution of Mechanical
    Engineers, Part L: Journal of Materials: Design and Applications (2023).'
date_created: 2023-02-28T10:52:49Z
date_updated: 2023-02-28T10:55:03Z
department:
- _id: '157'
doi: 10.1177/14644207231158213
keyword:
- Mechanical Engineering
- General Materials Science
language:
- iso: eng
publication: 'Proceedings of the Institution of Mechanical Engineers, Part L: Journal
  of Materials: Design and Applications'
publication_identifier:
  issn:
  - 1464-4207
  - 2041-3076
publication_status: epub_ahead
publisher: SAGE Publications
quality_controlled: '1'
status: public
title: Development of a numerical simulation model for self-piercing riveting of additive
  manufactured AlSi10Mg
type: journal_article
user_id: '40450'
year: '2023'
...
---
_id: '42872'
article_type: original
author:
- first_name: Johannes
  full_name: Göddecke, Johannes
  id: '59070'
  last_name: Göddecke
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
- first_name: Jannis
  full_name: Damm, Jannis
  last_name: Damm
- first_name: Matthias
  full_name: Albiez, Matthias
  last_name: Albiez
- first_name: Thomas
  full_name: Ummenhofer, Thomas
  last_name: Ummenhofer
- first_name: Fabian
  full_name: Kötz, Fabian
  last_name: Kötz
- first_name: Anton
  full_name: Matzenmiller, Anton
  last_name: Matzenmiller
citation:
  ama: Göddecke J, Meschut G, Damm J, et al. Experimental and numerical investigation
    of the damping properties of adhesively bonded tubular steel joints. <i>The Journal
    of Adhesion</i>. Published online 2023:1-31. doi:<a href="https://doi.org/10.1080/00218464.2023.2178909">10.1080/00218464.2023.2178909</a>
  apa: Göddecke, J., Meschut, G., Damm, J., Albiez, M., Ummenhofer, T., Kötz, F.,
    &#38; Matzenmiller, A. (2023). Experimental and numerical investigation of the
    damping properties of adhesively bonded tubular steel joints. <i>The Journal of
    Adhesion</i>, 1–31. <a href="https://doi.org/10.1080/00218464.2023.2178909">https://doi.org/10.1080/00218464.2023.2178909</a>
  bibtex: '@article{Göddecke_Meschut_Damm_Albiez_Ummenhofer_Kötz_Matzenmiller_2023,
    title={Experimental and numerical investigation of the damping properties of adhesively
    bonded tubular steel joints}, DOI={<a href="https://doi.org/10.1080/00218464.2023.2178909">10.1080/00218464.2023.2178909</a>},
    journal={The Journal of Adhesion}, publisher={Informa UK Limited}, author={Göddecke,
    Johannes and Meschut, Gerson and Damm, Jannis and Albiez, Matthias and Ummenhofer,
    Thomas and Kötz, Fabian and Matzenmiller, Anton}, year={2023}, pages={1–31} }'
  chicago: Göddecke, Johannes, Gerson Meschut, Jannis Damm, Matthias Albiez, Thomas
    Ummenhofer, Fabian Kötz, and Anton Matzenmiller. “Experimental and Numerical Investigation
    of the Damping Properties of Adhesively Bonded Tubular Steel Joints.” <i>The Journal
    of Adhesion</i>, 2023, 1–31. <a href="https://doi.org/10.1080/00218464.2023.2178909">https://doi.org/10.1080/00218464.2023.2178909</a>.
  ieee: 'J. Göddecke <i>et al.</i>, “Experimental and numerical investigation of the
    damping properties of adhesively bonded tubular steel joints,” <i>The Journal
    of Adhesion</i>, pp. 1–31, 2023, doi: <a href="https://doi.org/10.1080/00218464.2023.2178909">10.1080/00218464.2023.2178909</a>.'
  mla: Göddecke, Johannes, et al. “Experimental and Numerical Investigation of the
    Damping Properties of Adhesively Bonded Tubular Steel Joints.” <i>The Journal
    of Adhesion</i>, Informa UK Limited, 2023, pp. 1–31, doi:<a href="https://doi.org/10.1080/00218464.2023.2178909">10.1080/00218464.2023.2178909</a>.
  short: J. Göddecke, G. Meschut, J. Damm, M. Albiez, T. Ummenhofer, F. Kötz, A. Matzenmiller,
    The Journal of Adhesion (2023) 1–31.
date_created: 2023-03-08T16:36:35Z
date_updated: 2023-03-08T16:41:32Z
department:
- _id: '157'
doi: 10.1080/00218464.2023.2178909
language:
- iso: eng
page: 1-31
publication: The Journal of Adhesion
publication_identifier:
  issn:
  - 0021-8464
  - 1545-5823
publication_status: published
publisher: Informa UK Limited
quality_controlled: '1'
status: public
title: Experimental and numerical investigation of the damping properties of adhesively
  bonded tubular steel joints
type: journal_article
user_id: '59070'
year: '2023'
...
---
_id: '31849'
author:
- first_name: Max
  full_name: Hoffmann, Max
  id: '32202'
  last_name: Hoffmann
  orcid: 0000-0002-6964-7123
- first_name: Rolf
  full_name: Biehler, Rolf
  id: '16274'
  last_name: Biehler
citation:
  ama: 'Hoffmann M, Biehler R. Student Teachers ’ Knowledge of Congruence before a
    University Course on Geometry. In: Trigueros M, Barquero B, Hochmuth R, Peters
    J, eds. <i>Proceedings of the Fourth Conference of the International Network for
    Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>.
    University of Hannover and INDRUM.; 2023.'
  apa: Hoffmann, M., &#38; Biehler, R. (2023). Student Teachers ’ Knowledge of Congruence
    before a University Course on Geometry. In M. Trigueros, B. Barquero, R. Hochmuth,
    &#38; J. Peters (Eds.), <i>Proceedings of the Fourth Conference of the International
    Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
    2022)</i>. University of Hannover and INDRUM.
  bibtex: '@inproceedings{Hoffmann_Biehler_2023, place={Hannover}, title={Student
    Teachers ’ Knowledge of Congruence before a University Course on Geometry}, booktitle={Proceedings
    of the Fourth Conference of the International Network for Didactic Research in
    University Mathematics (INDRUM 2022, 19-22 October 2022)}, publisher={University
    of Hannover and INDRUM.}, author={Hoffmann, Max and Biehler, Rolf}, editor={Trigueros,
    Marı́a and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023}
    }'
  chicago: 'Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence
    before a University Course on Geometry.” In <i>Proceedings of the Fourth Conference
    of the International Network for Didactic Research in University Mathematics (INDRUM
    2022, 19-22 October 2022)</i>, edited by Marı́a Trigueros, Berta Barquero, Reinhard
    Hochmuth, and Jana Peters. Hannover: University of Hannover and INDRUM., 2023.'
  ieee: M. Hoffmann and R. Biehler, “Student Teachers ’ Knowledge of Congruence before
    a University Course on Geometry,” in <i>Proceedings of the Fourth Conference of
    the International Network for Didactic Research in University Mathematics (INDRUM
    2022, 19-22 October 2022)</i>, 2023.
  mla: Hoffmann, Max, and Rolf Biehler. “Student Teachers ’ Knowledge of Congruence
    before a University Course on Geometry.” <i>Proceedings of the Fourth Conference
    of the International Network for Didactic Research in University Mathematics (INDRUM
    2022, 19-22 October 2022)</i>, edited by Marı́a Trigueros et al., University of
    Hannover and INDRUM., 2023.
  short: 'M. Hoffmann, R. Biehler, in: M. Trigueros, B. Barquero, R. Hochmuth, J.
    Peters (Eds.), Proceedings of the Fourth Conference of the International Network
    for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022),
    University of Hannover and INDRUM., Hannover, 2023.'
date_created: 2022-06-12T11:07:34Z
date_updated: 2023-03-25T10:11:35Z
ddc:
- '370'
- '510'
department:
- _id: '97'
editor:
- first_name: Marı́a
  full_name: Trigueros, Marı́a
  last_name: Trigueros
- first_name: Berta
  full_name: Barquero, Berta
  last_name: Barquero
- first_name: Reinhard
  full_name: Hochmuth, Reinhard
  last_name: Hochmuth
- first_name: Jana
  full_name: Peters, Jana
  last_name: Peters
file:
- access_level: closed
  content_type: application/pdf
  creator: maxh
  date_created: 2023-03-25T10:01:03Z
  date_updated: 2023-03-25T10:01:03Z
  file_id: '43096'
  file_name: HoffmannBiehler2022_indrum_congruence.pdf
  file_size: 201942
  relation: main_file
  success: 1
file_date_updated: 2023-03-25T10:01:03Z
has_accepted_license: '1'
keyword:
- Teaching and learning of specific topics in university mathematics
- Transition to
- across and from university mathematics
- Student Teachers
- Geometry
- Congruence
- Double Discontinuity.
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hal.univ-reims.fr/INDRUM2022/
oa: '1'
place: Hannover
publication: Proceedings of the Fourth Conference of the International Network for
  Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)
publication_status: published
publisher: University of Hannover and INDRUM.
quality_controlled: '1'
status: public
title: Student Teachers ’ Knowledge of Congruence before a University Course on Geometry
type: conference
user_id: '32202'
year: '2023'
...
---
_id: '43097'
author:
- first_name: Ignasio
  full_name: Florensa, Ignasio
  last_name: Florensa
- first_name: Max
  full_name: Hoffmann, Max
  id: '32202'
  last_name: Hoffmann
  orcid: 0000-0002-6964-7123
- first_name: Avenilde
  full_name: Romo Vázquez, Avenilde
  last_name: Romo Vázquez
- first_name: Michelle
  full_name: Zandieh, Michelle
  last_name: Zandieh
- first_name: Rafael
  full_name: Martínez-Planell, Rafael
  last_name: Martínez-Planell
citation:
  ama: 'Florensa I, Hoffmann M, Romo Vázquez A, Zandieh M, Martínez-Planell R. Innovations
    in university teaching based on mathematic education research. In: Trigueros M,
    Barquero B, Hochmuth R, Peters J, eds. <i>Proceedings of the Fourth Conference
    of the International Network for Didactic Research in University Mathematics (INDRUM
    2022, 19-22 October 2022)</i>. ; 2023.'
  apa: Florensa, I., Hoffmann, M., Romo Vázquez, A., Zandieh, M., &#38; Martínez-Planell,
    R. (2023). Innovations in university teaching based on mathematic education research.
    In M. Trigueros, B. Barquero, R. Hochmuth, &#38; J. Peters (Eds.), <i>Proceedings
    of the Fourth Conference of the International Network for Didactic Research in
    University Mathematics (INDRUM 2022, 19-22 October 2022)</i>.
  bibtex: '@inproceedings{Florensa_Hoffmann_Romo Vázquez_Zandieh_Martínez-Planell_2023,
    place={Hannover}, title={Innovations in university teaching based on mathematic
    education research}, booktitle={Proceedings of the Fourth Conference of the International
    Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
    2022)}, author={Florensa, Ignasio and Hoffmann, Max and Romo Vázquez, Avenilde
    and Zandieh, Michelle and Martínez-Planell, Rafael}, editor={Trigueros, Marı́a
    and Barquero, Berta and Hochmuth, Reinhard and Peters, Jana}, year={2023} }'
  chicago: Florensa, Ignasio, Max Hoffmann, Avenilde Romo Vázquez, Michelle Zandieh,
    and Rafael Martínez-Planell. “Innovations in University Teaching Based on Mathematic
    Education Research.” In <i>Proceedings of the Fourth Conference of the International
    Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
    2022)</i>, edited by Marı́a Trigueros, Berta Barquero, Reinhard Hochmuth, and
    Jana Peters. Hannover, 2023.
  ieee: I. Florensa, M. Hoffmann, A. Romo Vázquez, M. Zandieh, and R. Martínez-Planell,
    “Innovations in university teaching based on mathematic education research,” in
    <i>Proceedings of the Fourth Conference of the International Network for Didactic
    Research in University Mathematics (INDRUM 2022, 19-22 October 2022)</i>, 2023.
  mla: Florensa, Ignasio, et al. “Innovations in University Teaching Based on Mathematic
    Education Research.” <i>Proceedings of the Fourth Conference of the International
    Network for Didactic Research in University Mathematics (INDRUM 2022, 19-22 October
    2022)</i>, edited by Marı́a Trigueros et al., 2023.
  short: 'I. Florensa, M. Hoffmann, A. Romo Vázquez, M. Zandieh, R. Martínez-Planell,
    in: M. Trigueros, B. Barquero, R. Hochmuth, J. Peters (Eds.), Proceedings of the
    Fourth Conference of the International Network for Didactic Research in University
    Mathematics (INDRUM 2022, 19-22 October 2022), Hannover, 2023.'
date_created: 2023-03-25T10:09:06Z
date_updated: 2023-03-25T10:10:58Z
ddc:
- '370'
- '510'
department:
- _id: '97'
editor:
- first_name: Marı́a
  full_name: Trigueros, Marı́a
  last_name: Trigueros
- first_name: Berta
  full_name: Barquero, Berta
  last_name: Barquero
- first_name: Reinhard
  full_name: Hochmuth, Reinhard
  last_name: Hochmuth
- first_name: Jana
  full_name: Peters, Jana
  last_name: Peters
file:
- access_level: closed
  content_type: application/pdf
  creator: maxh
  date_created: 2023-03-25T10:07:54Z
  date_updated: 2023-03-25T10:07:54Z
  file_id: '43098'
  file_name: 2022_FlorensaEtAl_indrum_panelInnovations.pdf
  file_size: 642388
  relation: main_file
  success: 1
file_date_updated: 2023-03-25T10:07:54Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://hal.univ-reims.fr/INDRUM2022/
oa: '1'
place: Hannover
publication: Proceedings of the Fourth Conference of the International Network for
  Didactic Research in University Mathematics (INDRUM 2022, 19-22 October 2022)
quality_controlled: '1'
status: public
title: Innovations in university teaching based on mathematic education research
type: conference
user_id: '32202'
year: '2023'
...
---
_id: '43421'
abstract:
- lang: eng
  text: The achievement of a flat metasurface has realized extraordinary control over
    light–matter interaction at the nanoscale, enabling widespread use in imaging,
    holography, and biophotonics. However, three-dimensional metasurfaces with the
    potential to provide additional light–matter manipulation flexibility attract
    only little interest. Here, we demonstrate a three-dimensional metasurface scheme
    capable of providing dual phase control through out-of-plane plasmonic resonance
    of L-shape antennas. Under circularly polarized excitation at a specific wavelength,
    the L-shape antennas with rotating orientation angle act as spatially variant
    three-dimensional tilted dipoles and are able to generate desire phase delay for
    different polarization components. Generalized Snell's law is achieved for both
    in-plane and out-of-plane dipole components through arranging such L-shape antennas
    into arrays. These three-dimensional metasurfaces suggest a route for wavefront
    modulation and a variety of nanophotonic applications.
article_number: '141702'
article_type: original
author:
- first_name: Tianyou
  full_name: Li, Tianyou
  last_name: Li
- first_name: Yanjie
  full_name: Chen, Yanjie
  last_name: Chen
- first_name: Yongtian
  full_name: Wang, Yongtian
  last_name: Wang
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Lingling
  full_name: Huang, Lingling
  last_name: Huang
citation:
  ama: Li T, Chen Y, Wang Y, Zentgraf T, Huang L. Three-dimensional dipole momentum
    analog based on L-shape metasurface. <i>Applied Physics Letters</i>. 2023;122(14).
    doi:<a href="https://doi.org/10.1063/5.0142389">10.1063/5.0142389</a>
  apa: Li, T., Chen, Y., Wang, Y., Zentgraf, T., &#38; Huang, L. (2023). Three-dimensional
    dipole momentum analog based on L-shape metasurface. <i>Applied Physics Letters</i>,
    <i>122</i>(14), Article 141702. <a href="https://doi.org/10.1063/5.0142389">https://doi.org/10.1063/5.0142389</a>
  bibtex: '@article{Li_Chen_Wang_Zentgraf_Huang_2023, title={Three-dimensional dipole
    momentum analog based on L-shape metasurface}, volume={122}, DOI={<a href="https://doi.org/10.1063/5.0142389">10.1063/5.0142389</a>},
    number={14141702}, journal={Applied Physics Letters}, publisher={AIP Publishing},
    author={Li, Tianyou and Chen, Yanjie and Wang, Yongtian and Zentgraf, Thomas and
    Huang, Lingling}, year={2023} }'
  chicago: Li, Tianyou, Yanjie Chen, Yongtian Wang, Thomas Zentgraf, and Lingling
    Huang. “Three-Dimensional Dipole Momentum Analog Based on L-Shape Metasurface.”
    <i>Applied Physics Letters</i> 122, no. 14 (2023). <a href="https://doi.org/10.1063/5.0142389">https://doi.org/10.1063/5.0142389</a>.
  ieee: 'T. Li, Y. Chen, Y. Wang, T. Zentgraf, and L. Huang, “Three-dimensional dipole
    momentum analog based on L-shape metasurface,” <i>Applied Physics Letters</i>,
    vol. 122, no. 14, Art. no. 141702, 2023, doi: <a href="https://doi.org/10.1063/5.0142389">10.1063/5.0142389</a>.'
  mla: Li, Tianyou, et al. “Three-Dimensional Dipole Momentum Analog Based on L-Shape
    Metasurface.” <i>Applied Physics Letters</i>, vol. 122, no. 14, 141702, AIP Publishing,
    2023, doi:<a href="https://doi.org/10.1063/5.0142389">10.1063/5.0142389</a>.
  short: T. Li, Y. Chen, Y. Wang, T. Zentgraf, L. Huang, Applied Physics Letters 122
    (2023).
date_created: 2023-04-06T06:01:06Z
date_updated: 2023-04-06T06:02:58Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
doi: 10.1063/5.0142389
intvolume: '       122'
issue: '14'
keyword:
- Physics and Astronomy (miscellaneous)
language:
- iso: eng
publication: Applied Physics Letters
publication_identifier:
  issn:
  - 0003-6951
  - 1077-3118
publication_status: published
publisher: AIP Publishing
quality_controlled: '1'
status: public
title: Three-dimensional dipole momentum analog based on L-shape metasurface
type: journal_article
user_id: '30525'
volume: 122
year: '2023'
...
---
_id: '43464'
abstract:
- lang: eng
  text: <jats:p>Lightweight design is a common approach to reduce energy demand in
    the use stage of vehicles. The production of lightweight materials is usually
    associated with an increase in energy demand, so the environmental impacts of
    lightweight structures need to be assessed holistically using a life cycle assessment.
    To estimate the life cycle environmental impacts of a product in its developmental
    stage, for example, by life cycle engineering, future changes in relevant influencing
    factors must be considered. Prospective life cycle assessment provides methods
    for integrating future scenarios into life cycle assessment studies. However,
    approaches for integrating prospective life cycle assessment into product development
    are limited. The objective of this work is to provide the methodological foundation
    for integrating future scenarios of relevant influencing factors in the development
    of lightweight structures. The applicability of the novel methodology is demonstrated
    by a case study of a structural component in a steel, aluminium, and hybrid design.
    The results show that appropriate decarbonisation measures can reduce the life
    cycle greenhouse gas emissions by up to 95 percent until 2050. We also found that
    shifts in the environmentally optimal design are possible in future scenarios.
    Therefore, the methodology and data provided contribute to improved decision-making
    in product development.</jats:p>
article_number: '3371'
author:
- first_name: Moritz
  full_name: Ostermann, Moritz
  id: '44763'
  last_name: Ostermann
  orcid: https://orcid.org/0000-0003-1146-0443
- first_name: Julian
  full_name: Grenz, Julian
  last_name: Grenz
- first_name: Marcel
  full_name: Triebus, Marcel
  id: '66036'
  last_name: Triebus
- first_name: Felipe
  full_name: Cerdas, Felipe
  last_name: Cerdas
- first_name: Thorsten
  full_name: Marten, Thorsten
  id: '338'
  last_name: Marten
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
- first_name: Christoph
  full_name: Herrmann, Christoph
  last_name: Herrmann
citation:
  ama: 'Ostermann M, Grenz J, Triebus M, et al. Integrating Prospective Scenarios
    in Life Cycle Engineering: Case Study of Lightweight Structures. <i>Energies</i>.
    2023;16(8). doi:<a href="https://doi.org/10.3390/en16083371">10.3390/en16083371</a>'
  apa: 'Ostermann, M., Grenz, J., Triebus, M., Cerdas, F., Marten, T., Tröster, T.,
    &#38; Herrmann, C. (2023). Integrating Prospective Scenarios in Life Cycle Engineering:
    Case Study of Lightweight Structures. <i>Energies</i>, <i>16</i>(8), Article 3371.
    <a href="https://doi.org/10.3390/en16083371">https://doi.org/10.3390/en16083371</a>'
  bibtex: '@article{Ostermann_Grenz_Triebus_Cerdas_Marten_Tröster_Herrmann_2023, title={Integrating
    Prospective Scenarios in Life Cycle Engineering: Case Study of Lightweight Structures},
    volume={16}, DOI={<a href="https://doi.org/10.3390/en16083371">10.3390/en16083371</a>},
    number={83371}, journal={Energies}, publisher={MDPI AG}, author={Ostermann, Moritz
    and Grenz, Julian and Triebus, Marcel and Cerdas, Felipe and Marten, Thorsten
    and Tröster, Thomas and Herrmann, Christoph}, year={2023} }'
  chicago: 'Ostermann, Moritz, Julian Grenz, Marcel Triebus, Felipe Cerdas, Thorsten
    Marten, Thomas Tröster, and Christoph Herrmann. “Integrating Prospective Scenarios
    in Life Cycle Engineering: Case Study of Lightweight Structures.” <i>Energies</i>
    16, no. 8 (2023). <a href="https://doi.org/10.3390/en16083371">https://doi.org/10.3390/en16083371</a>.'
  ieee: 'M. Ostermann <i>et al.</i>, “Integrating Prospective Scenarios in Life Cycle
    Engineering: Case Study of Lightweight Structures,” <i>Energies</i>, vol. 16,
    no. 8, Art. no. 3371, 2023, doi: <a href="https://doi.org/10.3390/en16083371">10.3390/en16083371</a>.'
  mla: 'Ostermann, Moritz, et al. “Integrating Prospective Scenarios in Life Cycle
    Engineering: Case Study of Lightweight Structures.” <i>Energies</i>, vol. 16,
    no. 8, 3371, MDPI AG, 2023, doi:<a href="https://doi.org/10.3390/en16083371">10.3390/en16083371</a>.'
  short: M. Ostermann, J. Grenz, M. Triebus, F. Cerdas, T. Marten, T. Tröster, C.
    Herrmann, Energies 16 (2023).
date_created: 2023-04-13T09:11:33Z
date_updated: 2023-04-13T09:19:56Z
department:
- _id: '9'
- _id: '321'
- _id: '149'
doi: 10.3390/en16083371
intvolume: '        16'
issue: '8'
keyword:
- Life Cycle Engineering
- Life Cycle Assessment
- Lightweight Design
- Prospective LCA
- Future-oriented LCA
- Energy System
- Material production
- Sustainable production
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.mdpi.com/1996-1073/16/8/3371
oa: '1'
publication: Energies
publication_identifier:
  issn:
  - 1996-1073
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: 'Integrating Prospective Scenarios in Life Cycle Engineering: Case Study of
  Lightweight Structures'
type: journal_article
user_id: '44763'
volume: 16
year: '2023'
...
---
_id: '44036'
abstract:
- lang: eng
  text: <jats:p>Abstract. In order to reduce global energy consumption in production
    and industry along with the associated CO2 emissions, existing resources must
    be used more efficiently. This includes the energy-efficient and comprehensive
    recycling of a wide range of metals. Especially for the production of aluminium,
    there is a large potential for saving energy using efficient recycling processes.
    With regard to the recycling of aluminium studies have shown that solid-state
    recycling processes are significantly more efficient considering the used energy
    and resources compared to the conventional, smelting-metallurgical recycling process.
    In this paper, the direct and energy-efficient friction-induced recycling process
    (FIRP) based on the conform process is further described and analysed in terms
    of the temperature-property relationships. For this purpose, the influence of
    the processing temperature on the microstructure and properties of the recycled
    semi-finished products is investigated using the toll system that enables an ECAP
    forming. Specific sections of the (in theory) infinite, recycled semi-finished
    product are taken and analysed at different process temperatures of the solid
    state recycling process. Based on these sections, the properties in terms of mechanical
    hardness, strength, ductility and grain size are analysed and a degressive relationship
    between process temperature and mechanical hardness up to a temperature of 270
    °C can be shown. Applying the Hall-Petch relationship, it is analysed whether
    there is a correlation between the strength and the microstructure in the form
    of the grain size. </jats:p>
author:
- first_name: Thomas
  full_name: Borgert, Thomas
  id: '83141'
  last_name: Borgert
- first_name: Werner
  full_name: Homberg, Werner
  id: '233'
  last_name: Homberg
citation:
  ama: 'Borgert T, Homberg W. Analysis of temperature effect on strength and microstructure
    in friction induced recycling process (FIRP). In: <i>Materials Research Proceedings</i>.
    Materials Research Forum LLC; 2023. doi:<a href="https://doi.org/10.21741/9781644902479-211">10.21741/9781644902479-211</a>'
  apa: Borgert, T., &#38; Homberg, W. (2023). Analysis of temperature effect on strength
    and microstructure in friction induced recycling process (FIRP). <i>Materials
    Research Proceedings</i>. ESAFORM 2023, Kraków. <a href="https://doi.org/10.21741/9781644902479-211">https://doi.org/10.21741/9781644902479-211</a>
  bibtex: '@inproceedings{Borgert_Homberg_2023, title={Analysis of temperature effect
    on strength and microstructure in friction induced recycling process (FIRP)},
    DOI={<a href="https://doi.org/10.21741/9781644902479-211">10.21741/9781644902479-211</a>},
    booktitle={Materials Research Proceedings}, publisher={Materials Research Forum
    LLC}, author={Borgert, Thomas and Homberg, Werner}, year={2023} }'
  chicago: Borgert, Thomas, and Werner Homberg. “Analysis of Temperature Effect on
    Strength and Microstructure in Friction Induced Recycling Process (FIRP).” In
    <i>Materials Research Proceedings</i>. Materials Research Forum LLC, 2023. <a
    href="https://doi.org/10.21741/9781644902479-211">https://doi.org/10.21741/9781644902479-211</a>.
  ieee: 'T. Borgert and W. Homberg, “Analysis of temperature effect on strength and
    microstructure in friction induced recycling process (FIRP),” presented at the
    ESAFORM 2023, Kraków, 2023, doi: <a href="https://doi.org/10.21741/9781644902479-211">10.21741/9781644902479-211</a>.'
  mla: Borgert, Thomas, and Werner Homberg. “Analysis of Temperature Effect on Strength
    and Microstructure in Friction Induced Recycling Process (FIRP).” <i>Materials
    Research Proceedings</i>, Materials Research Forum LLC, 2023, doi:<a href="https://doi.org/10.21741/9781644902479-211">10.21741/9781644902479-211</a>.
  short: 'T. Borgert, W. Homberg, in: Materials Research Proceedings, Materials Research
    Forum LLC, 2023.'
conference:
  location: Kraków
  name: ESAFORM 2023
date_created: 2023-04-17T08:00:28Z
date_updated: 2023-04-26T13:26:22Z
department:
- _id: '156'
doi: 10.21741/9781644902479-211
keyword:
- Recycling
- Aluminium
- Friction-Induced
- Energy Efficiency
language:
- iso: eng
publication: Materials Research Proceedings
publication_identifier:
  issn:
  - 2474-395X
publication_status: published
publisher: Materials Research Forum LLC
quality_controlled: '1'
status: public
title: Analysis of temperature effect on strength and microstructure in friction induced
  recycling process (FIRP)
type: conference
user_id: '83141'
year: '2023'
...
---
_id: '42252'
abstract:
- lang: ger
  text: Die Wirtschaftlichkeit von Wärmemotoren wird maßgeblich durch die Rückführung
    von Wärme in Rekuperatoren beeinflusst. Beim isobaren Expansionsmotor vom Bush-Typ,
    einem Wärmemotor, welcher bereits mit Wärmequellen ab 60°C betrieben werden kann,
    steigt der thermische Wirkungsgrad durch den Einsatz von Rekuperatoren signifikant.
    Gleichzeitig wirken sich das Fluidvolumen des Wärmeübertragers sowie der beim
    Betrieb auftretende Druckverlust negativ auf den thermischen Wirkungsrad aus.
    In dieser Arbeit wird der Zusammenhang von Totvolumen, Druckverlust und Wärmerückgewinnung
    untersucht und Empfehlungen für den Betrieb von Rekuperatoren am isobaren Expansionsmotor
    gegeben.
author:
- first_name: Nils
  full_name: Mügge, Nils
  id: '72972'
  last_name: Mügge
- first_name: Alexander
  full_name: Kronberg, Alexander
  last_name: Kronberg
- first_name: Maxim
  full_name: Glushenkov, Maxim
  last_name: Glushenkov
- first_name: Eugeny Y.
  full_name: Kenig, Eugeny Y.
  id: '665'
  last_name: Kenig
citation:
  ama: Mügge N, Kronberg A, Glushenkov M, Kenig EY. Untersuchung überlagerter Effekte
    von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor.
    <i>Chemie Ingenieur Technik</i>. 2023;95(5). doi:<a href="https://doi.org/10.1002/cite.202200243">10.1002/cite.202200243</a>
  apa: Mügge, N., Kronberg, A., Glushenkov, M., &#38; Kenig, E. Y. (2023). Untersuchung
    überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren
    Expansionsmotor. <i>Chemie Ingenieur Technik</i>, <i>95</i>(5). <a href="https://doi.org/10.1002/cite.202200243">https://doi.org/10.1002/cite.202200243</a>
  bibtex: '@article{Mügge_Kronberg_Glushenkov_Kenig_2023, title={Untersuchung überlagerter
    Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor},
    volume={95}, DOI={<a href="https://doi.org/10.1002/cite.202200243">10.1002/cite.202200243</a>},
    number={5}, journal={Chemie Ingenieur Technik}, publisher={Wiley}, author={Mügge,
    Nils and Kronberg, Alexander and Glushenkov, Maxim and Kenig, Eugeny Y.}, year={2023}
    }'
  chicago: Mügge, Nils, Alexander Kronberg, Maxim Glushenkov, and Eugeny Y. Kenig.
    “Untersuchung überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation
    am isobaren Expansionsmotor.” <i>Chemie Ingenieur Technik</i> 95, no. 5 (2023).
    <a href="https://doi.org/10.1002/cite.202200243">https://doi.org/10.1002/cite.202200243</a>.
  ieee: 'N. Mügge, A. Kronberg, M. Glushenkov, and E. Y. Kenig, “Untersuchung überlagerter
    Effekte von Druckverlust und Totvolumen durch Rekuperation am isobaren Expansionsmotor,”
    <i>Chemie Ingenieur Technik</i>, vol. 95, no. 5, 2023, doi: <a href="https://doi.org/10.1002/cite.202200243">10.1002/cite.202200243</a>.'
  mla: Mügge, Nils, et al. “Untersuchung überlagerter Effekte von Druckverlust und
    Totvolumen durch Rekuperation am isobaren Expansionsmotor.” <i>Chemie Ingenieur
    Technik</i>, vol. 95, no. 5, Wiley, 2023, doi:<a href="https://doi.org/10.1002/cite.202200243">10.1002/cite.202200243</a>.
  short: N. Mügge, A. Kronberg, M. Glushenkov, E.Y. Kenig, Chemie Ingenieur Technik
    95 (2023).
date_created: 2023-02-22T06:35:52Z
date_updated: 2023-04-27T07:26:18Z
department:
- _id: '9'
- _id: '145'
doi: 10.1002/cite.202200243
intvolume: '        95'
issue: '5'
keyword:
- Isobarer Expansionsmotor
- Dynamische Wärmeübertragungsmodellierung
- Phasenwechsel
- dichte Arbeitsmedien
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://onlinelibrary.wiley.com/doi/10.1002/cite.202200243
oa: '1'
publication: Chemie Ingenieur Technik
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: Untersuchung überlagerter Effekte von Druckverlust und Totvolumen durch Rekuperation
  am isobaren Expansionsmotor
type: journal_article
user_id: '72972'
volume: 95
year: '2023'
...
---
_id: '43130'
article_type: review
author:
- first_name: Tobias
  full_name: Schmolke, Tobias
  id: '44759'
  last_name: Schmolke
- first_name: Dominik
  full_name: Teutenberg, Dominik
  id: '537'
  last_name: Teutenberg
- first_name: Gerson
  full_name: Meschut, Gerson
  id: '32056'
  last_name: Meschut
  orcid: 0000-0002-2763-1246
citation:
  ama: Schmolke T, Teutenberg D, Meschut G. Investigation of the leak tightness of
    structural adhesive joints for use in battery housings considering mechanical
    and corrosive loads. <i>The Journal of Adhesion</i>. Published online 2023. doi:<a
    href="https://doi.org/10.1080/00218464.2023.2195556">10.1080/00218464.2023.2195556</a>
  apa: Schmolke, T., Teutenberg, D., &#38; Meschut, G. (2023). Investigation of the
    leak tightness of structural adhesive joints for use in battery housings considering
    mechanical and corrosive loads. <i>The Journal of Adhesion</i>. <a href="https://doi.org/10.1080/00218464.2023.2195556">https://doi.org/10.1080/00218464.2023.2195556</a>
  bibtex: '@article{Schmolke_Teutenberg_Meschut_2023, title={Investigation of the
    leak tightness of structural adhesive joints for use in battery housings considering
    mechanical and corrosive loads}, DOI={<a href="https://doi.org/10.1080/00218464.2023.2195556">10.1080/00218464.2023.2195556</a>},
    journal={The Journal of Adhesion}, publisher={Taylor &#38; Francis}, author={Schmolke,
    Tobias and Teutenberg, Dominik and Meschut, Gerson}, year={2023} }'
  chicago: Schmolke, Tobias, Dominik Teutenberg, and Gerson Meschut. “Investigation
    of the Leak Tightness of Structural Adhesive Joints for Use in Battery Housings
    Considering Mechanical and Corrosive Loads.” <i>The Journal of Adhesion</i>, 2023.
    <a href="https://doi.org/10.1080/00218464.2023.2195556">https://doi.org/10.1080/00218464.2023.2195556</a>.
  ieee: 'T. Schmolke, D. Teutenberg, and G. Meschut, “Investigation of the leak tightness
    of structural adhesive joints for use in battery housings considering mechanical
    and corrosive loads,” <i>The Journal of Adhesion</i>, 2023, doi: <a href="https://doi.org/10.1080/00218464.2023.2195556">10.1080/00218464.2023.2195556</a>.'
  mla: Schmolke, Tobias, et al. “Investigation of the Leak Tightness of Structural
    Adhesive Joints for Use in Battery Housings Considering Mechanical and Corrosive
    Loads.” <i>The Journal of Adhesion</i>, Taylor &#38; Francis, 2023, doi:<a href="https://doi.org/10.1080/00218464.2023.2195556">10.1080/00218464.2023.2195556</a>.
  short: T. Schmolke, D. Teutenberg, G. Meschut, The Journal of Adhesion (2023).
date_created: 2023-03-28T12:01:34Z
date_updated: 2023-04-27T09:01:15Z
department:
- _id: '157'
doi: 10.1080/00218464.2023.2195556
language:
- iso: eng
publication: The Journal of Adhesion
publication_status: published
publisher: Taylor & Francis
quality_controlled: '1'
status: public
title: Investigation of the leak tightness of structural adhesive joints for use in
  battery housings considering mechanical and corrosive loads
type: journal_article
user_id: '44759'
year: '2023'
...
---
_id: '36983'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title><jats:p>The use of structured measuring
    systems to prevent wall slip is a common approach to obtain absolute rheological
    values. Typically, only the minimum distance between the measuring surfaces is
    used for further calculation, implying that no flow occurs between the structural
    elements. But this assumption is misleading, and a gap correction is necessary.
    To determine the radius correction <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\Delta
    r$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \               <mml:mrow>\r\n                  <mml:mi>Δ</mml:mi>\r\n                  <mml:mi>r</mml:mi>\r\n
    \               </mml:mrow>\r\n              </mml:math></jats:alternatives></jats:inline-formula>
    for specific geometries, we conducted investigations on three Newtonian fluids
    (two silicon oils and one suspension considered to be Newtonian in the relevant
    shear rate range). The results show that <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\Delta
    r$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \               <mml:mrow>\r\n                  <mml:mi>Δ</mml:mi>\r\n                  <mml:mi>r</mml:mi>\r\n
    \               </mml:mrow>\r\n              </mml:math></jats:alternatives></jats:inline-formula>
    is not only shear- and material-independent, but geometry-dependent, providing
    a Newtonian flow behaviour in a similar viscosity range. Therefore, a correction
    value can be determined with only minute deviations in different Newtonian fluids.
    As the conducted laboratory measurements are very time-consuming and expensive,
    a CFD-approach with only very small deviations was additionally developed and
    compared for validation purposes. Therefore, simulation is an effective and resource-efficient
    alternative to the presented laboratory measurements to determine <jats:inline-formula><jats:alternatives><jats:tex-math>$$\\Delta
    r$$</jats:tex-math><mml:math xmlns:mml=\"http://www.w3.org/1998/Math/MathML\">\r\n
    \               <mml:mrow>\r\n                  <mml:mi>Δ</mml:mi>\r\n                  <mml:mi>r</mml:mi>\r\n
    \               </mml:mrow>\r\n              </mml:math></jats:alternatives></jats:inline-formula>
    for the correction of structured coaxial geometries even for non-Newtonian fluids
    in the future.</jats:p>"
article_type: original
author:
- first_name: Sebastian
  full_name: Josch, Sebastian
  id: '38243'
  last_name: Josch
- first_name: Steffen
  full_name: Jesinghausen, Steffen
  id: '3959'
  last_name: Jesinghausen
  orcid: https://orcid.org/0000-0003-2611-5298
- first_name: Christopher
  full_name: Dechert, Christopher
  id: '69828'
  last_name: Dechert
- first_name: Hans-Joachim
  full_name: Schmid, Hans-Joachim
  id: '464'
  last_name: Schmid
  orcid: 000-0001-8590-1921
citation:
  ama: Josch S, Jesinghausen S, Dechert C, Schmid H-J. Experimental and simulative
    determination and correction of the effective gap extension in structured coaxial
    measuring systems. <i>Rheologica Acta</i>. Published online 2023. doi:<a href="https://doi.org/10.1007/s00397-023-01383-2">10.1007/s00397-023-01383-2</a>
  apa: Josch, S., Jesinghausen, S., Dechert, C., &#38; Schmid, H.-J. (2023). Experimental
    and simulative determination and correction of the effective gap extension in
    structured coaxial measuring systems. <i>Rheologica Acta</i>. <a href="https://doi.org/10.1007/s00397-023-01383-2">https://doi.org/10.1007/s00397-023-01383-2</a>
  bibtex: '@article{Josch_Jesinghausen_Dechert_Schmid_2023, title={Experimental and
    simulative determination and correction of the effective gap extension in structured
    coaxial measuring systems}, DOI={<a href="https://doi.org/10.1007/s00397-023-01383-2">10.1007/s00397-023-01383-2</a>},
    journal={Rheologica Acta}, publisher={Springer Science and Business Media LLC},
    author={Josch, Sebastian and Jesinghausen, Steffen and Dechert, Christopher and
    Schmid, Hans-Joachim}, year={2023} }'
  chicago: Josch, Sebastian, Steffen Jesinghausen, Christopher Dechert, and Hans-Joachim
    Schmid. “Experimental and Simulative Determination and Correction of the Effective
    Gap Extension in Structured Coaxial Measuring Systems.” <i>Rheologica Acta</i>,
    2023. <a href="https://doi.org/10.1007/s00397-023-01383-2">https://doi.org/10.1007/s00397-023-01383-2</a>.
  ieee: 'S. Josch, S. Jesinghausen, C. Dechert, and H.-J. Schmid, “Experimental and
    simulative determination and correction of the effective gap extension in structured
    coaxial measuring systems,” <i>Rheologica Acta</i>, 2023, doi: <a href="https://doi.org/10.1007/s00397-023-01383-2">10.1007/s00397-023-01383-2</a>.'
  mla: Josch, Sebastian, et al. “Experimental and Simulative Determination and Correction
    of the Effective Gap Extension in Structured Coaxial Measuring Systems.” <i>Rheologica
    Acta</i>, Springer Science and Business Media LLC, 2023, doi:<a href="https://doi.org/10.1007/s00397-023-01383-2">10.1007/s00397-023-01383-2</a>.
  short: S. Josch, S. Jesinghausen, C. Dechert, H.-J. Schmid, Rheologica Acta (2023).
date_created: 2023-01-17T08:04:24Z
date_updated: 2023-03-14T07:41:28Z
department:
- _id: '150'
doi: 10.1007/s00397-023-01383-2
keyword:
- rheology
- rheometry
- suspension
- coaxial
- correction
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/article/10.1007/s00397-023-01383-2
oa: '1'
publication: Rheologica Acta
publication_identifier:
  issn:
  - 0035-4511
  - 1435-1528
publication_status: published
publisher: Springer Science and Business Media LLC
quality_controlled: '1'
status: public
title: Experimental and simulative determination and correction of the effective gap
  extension in structured coaxial measuring systems
type: journal_article
user_id: '3959'
year: '2023'
...
