---
_id: '24017'
abstract:
- lang: eng
  text: In developing complex technical systems, requirements are subject to continuous
    change. Systematic and holistic change impact analysis and proactive measures
    are required for reducing the number of requirement changes and their negative
    impact. There is no method to analyse the holistic impact of a requirement change
    in the context of developing complex technical systems. Holistic analysis requires
    to consider the local effects of requirement changes as well as effects from change
    propagation. To develop an approach for holistic change propagation and impact
    analysis, twelve performance goals are defined. Those are derived from a state
    of research analysis as well as an industry workshop. A three-step method is proposed.
    Firstly, requirement dependencies that cause change propagation are detected.
    Secondly, critical requirements are automatically identified based on a Page Rank
    algorithm. Thirdly, change impact of critical requirements is analysed based on
    a guideline. Validation proves that ten goals are fulfilled and two are partly
    fulfilled. The method addresses major shortcomings of preceding research and enables
    sound decision making for development engineers both before a change occurs and
    during decision process on a change request. This helps to reduce negative change
    impact in development projects and the risk of project failure.
author:
- first_name: Iris
  full_name: Gräßler, Iris
  id: '47565'
  last_name: Gräßler
  orcid: 0000-0001-5765-971X
- first_name: Christian
  full_name: Oleff, Christian
  id: '41188'
  last_name: Oleff
- first_name: Daniel
  full_name: Preuß, Daniel
  id: '40253'
  last_name: Preuß
citation:
  ama: 'Gräßler I, Oleff C, Preuß D. Holistic change propagation and impact analysis
    in requirements management. In: Wagner B, Wilson J, eds. ; 2021.'
  apa: Gräßler, I., Oleff, C., &#38; Preuß, D. (2021). <i>Holistic change propagation
    and impact analysis in requirements management</i> (B. Wagner &#38; J. Wilson,
    Eds.).
  bibtex: '@inproceedings{Gräßler_Oleff_Preuß_2021, title={Holistic change propagation
    and impact analysis in requirements management}, author={Gräßler, Iris and Oleff,
    Christian and Preuß, Daniel}, editor={Wagner, Beverly and Wilson, Juliette}, year={2021}
    }'
  chicago: Gräßler, Iris, Christian Oleff, and Daniel Preuß. “Holistic Change Propagation
    and Impact Analysis in Requirements Management.” edited by Beverly Wagner and
    Juliette Wilson, 2021.
  ieee: I. Gräßler, C. Oleff, and D. Preuß, “Holistic change propagation and impact
    analysis in requirements management,” Strathclyde/Glasgow, 2021.
  mla: Gräßler, Iris, et al. <i>Holistic Change Propagation and Impact Analysis in
    Requirements Management</i>. Edited by Beverly Wagner and Juliette Wilson, 2021.
  short: 'I. Gräßler, C. Oleff, D. Preuß, in: B. Wagner, J. Wilson (Eds.), 2021.'
conference:
  end_date: 2021-07-08
  location: Strathclyde/Glasgow
  name: R&D Management Conference
  start_date: 2021-07-07
date_created: 2021-09-09T11:49:38Z
date_updated: 2022-11-11T12:20:12Z
ddc:
- '620'
department:
- _id: '152'
editor:
- first_name: Beverly
  full_name: Wagner, Beverly
  last_name: Wagner
- first_name: Juliette
  full_name: Wilson, Juliette
  last_name: Wilson
file:
- access_level: open_access
  content_type: application/pdf
  creator: dpreuss
  date_created: 2022-04-19T07:59:22Z
  date_updated: 2022-11-11T12:20:11Z
  file_id: '30912'
  file_name: RD_2021_HolisticChangePropagation_ShortCompetitivePaper_graessler.pdf
  file_size: 571976
  relation: main_file
file_date_updated: 2022-11-11T12:20:11Z
has_accepted_license: '1'
language:
- iso: eng
oa: '1'
status: public
title: Holistic change propagation and impact analysis in requirements management
type: conference
user_id: '40253'
year: '2021'
...
---
_id: '31442'
author:
- first_name: Ruth
  full_name: Hagengruber, Ruth
  id: '198'
  last_name: Hagengruber
  orcid: https://orcid.org/0000-0003-3360-6335
citation:
  ama: Hagengruber R. Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers verleiht
    zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres. <i>Konsens</i>.
    Published online 2021:31.
  apa: Hagengruber, R. (2021). Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers
    verleiht zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres.
    <i>Konsens</i>, 31.
  bibtex: '@article{Hagengruber_2021, title={Vizepräsidentin a.D. des DAB, Prof. Dr.
    Ulrike Detmers verleiht zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin
    des Jahres}, journal={Konsens}, author={Hagengruber, Ruth}, year={2021}, pages={31}
    }'
  chicago: Hagengruber, Ruth. “Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers
    verleiht zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres.”
    <i>Konsens</i>, 2021, 31.
  ieee: R. Hagengruber, “Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers verleiht
    zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres,” <i>Konsens</i>,
    p. 31, 2021.
  mla: Hagengruber, Ruth. “Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers
    verleiht zum 20. Mal den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres.”
    <i>Konsens</i>, 2021, p. 31.
  short: R. Hagengruber, Konsens (2021) 31.
date_created: 2022-05-23T13:05:42Z
date_updated: 2022-11-25T19:29:24Z
department:
- _id: '519'
language:
- iso: ger
page: '31'
publication: Konsens
status: public
title: Vizepräsidentin a.D. des DAB, Prof. Dr. Ulrike Detmers verleiht zum 20. Mal
  den von ihr ins Leben gerufenen Preis‚ Managerin des Jahres
type: journal_article
user_id: '49063'
year: '2021'
...
---
_id: '34647'
article_number: '035204'
author:
- first_name: T
  full_name: Brögelmann, T
  last_name: Brögelmann
- first_name: K
  full_name: Bobzin, K
  last_name: Bobzin
- first_name: Guido
  full_name: Grundmeier, Guido
  id: '194'
  last_name: Grundmeier
- first_name: T
  full_name: de los Arcos, T
  last_name: de los Arcos
- first_name: N C
  full_name: Kruppe, N C
  last_name: Kruppe
- first_name: S
  full_name: Schwiderek, S
  last_name: Schwiderek
- first_name: M
  full_name: Carlet, M
  last_name: Carlet
citation:
  ama: 'Brögelmann T, Bobzin K, Grundmeier G, et al. Durability of nanolayer Ti–Al–O–N
    hard coatings under simulated polycarbonate melt processing conditions. <i>Journal
    of Physics D: Applied Physics</i>. 2021;55(3). doi:<a href="https://doi.org/10.1088/1361-6463/ac2e31">10.1088/1361-6463/ac2e31</a>'
  apa: 'Brögelmann, T., Bobzin, K., Grundmeier, G., de los Arcos, T., Kruppe, N. C.,
    Schwiderek, S., &#38; Carlet, M. (2021). Durability of nanolayer Ti–Al–O–N hard
    coatings under simulated polycarbonate melt processing conditions. <i>Journal
    of Physics D: Applied Physics</i>, <i>55</i>(3), Article 035204. <a href="https://doi.org/10.1088/1361-6463/ac2e31">https://doi.org/10.1088/1361-6463/ac2e31</a>'
  bibtex: '@article{Brögelmann_Bobzin_Grundmeier_de los Arcos_Kruppe_Schwiderek_Carlet_2021,
    title={Durability of nanolayer Ti–Al–O–N hard coatings under simulated polycarbonate
    melt processing conditions}, volume={55}, DOI={<a href="https://doi.org/10.1088/1361-6463/ac2e31">10.1088/1361-6463/ac2e31</a>},
    number={3035204}, journal={Journal of Physics D: Applied Physics}, publisher={IOP
    Publishing}, author={Brögelmann, T and Bobzin, K and Grundmeier, Guido and de
    los Arcos, T and Kruppe, N C and Schwiderek, S and Carlet, M}, year={2021} }'
  chicago: 'Brögelmann, T, K Bobzin, Guido Grundmeier, T de los Arcos, N C Kruppe,
    S Schwiderek, and M Carlet. “Durability of Nanolayer Ti–Al–O–N Hard Coatings under
    Simulated Polycarbonate Melt Processing Conditions.” <i>Journal of Physics D:
    Applied Physics</i> 55, no. 3 (2021). <a href="https://doi.org/10.1088/1361-6463/ac2e31">https://doi.org/10.1088/1361-6463/ac2e31</a>.'
  ieee: 'T. Brögelmann <i>et al.</i>, “Durability of nanolayer Ti–Al–O–N hard coatings
    under simulated polycarbonate melt processing conditions,” <i>Journal of Physics
    D: Applied Physics</i>, vol. 55, no. 3, Art. no. 035204, 2021, doi: <a href="https://doi.org/10.1088/1361-6463/ac2e31">10.1088/1361-6463/ac2e31</a>.'
  mla: 'Brögelmann, T., et al. “Durability of Nanolayer Ti–Al–O–N Hard Coatings under
    Simulated Polycarbonate Melt Processing Conditions.” <i>Journal of Physics D:
    Applied Physics</i>, vol. 55, no. 3, 035204, IOP Publishing, 2021, doi:<a href="https://doi.org/10.1088/1361-6463/ac2e31">10.1088/1361-6463/ac2e31</a>.'
  short: 'T. Brögelmann, K. Bobzin, G. Grundmeier, T. de los Arcos, N.C. Kruppe, S.
    Schwiderek, M. Carlet, Journal of Physics D: Applied Physics 55 (2021).'
date_created: 2022-12-21T09:32:09Z
date_updated: 2022-12-21T09:32:39Z
department:
- _id: '302'
doi: 10.1088/1361-6463/ac2e31
intvolume: '        55'
issue: '3'
keyword:
- Surfaces
- Coatings and Films
- Acoustics and Ultrasonics
- Condensed Matter Physics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
publication: 'Journal of Physics D: Applied Physics'
publication_identifier:
  issn:
  - 0022-3727
  - 1361-6463
publication_status: published
publisher: IOP Publishing
status: public
title: Durability of nanolayer Ti–Al–O–N hard coatings under simulated polycarbonate
  melt processing conditions
type: journal_article
user_id: '48864'
volume: 55
year: '2021'
...
---
_id: '30680'
author:
- first_name: D.
  full_name: Weiß, D.
  last_name: Weiß
- first_name: B.
  full_name: Schramm, B.
  last_name: Schramm
- first_name: G.
  full_name: Kullmer, G.
  last_name: Kullmer
citation:
  ama: Weiß D, Schramm B, Kullmer G. Numerical and Experimental Fracture Mechanical
    Investigations of Clinchable Sheet Metals Made of HCT590X. <i>Key Engineering
    Materials</i>. 2021;883:127-132. doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>
  apa: Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Numerical and Experimental
    Fracture Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.
    <i>Key Engineering Materials</i>, <i>883</i>, 127–132. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>
  bibtex: '@article{Weiß_Schramm_Kullmer_2021, title={Numerical and Experimental Fracture
    Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X}, volume={883},
    DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>},
    journal={Key Engineering Materials}, author={Weiß, D. and Schramm, B. and Kullmer,
    G.}, year={2021}, pages={127–132} }'
  chicago: 'Weiß, D., B. Schramm, and G. Kullmer. “Numerical and Experimental Fracture
    Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X.” <i>Key
    Engineering Materials</i> 883 (2021): 127–32. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">https://doi.org/10.4028/www.scientific.net/kem.883.127</a>.'
  ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Numerical and Experimental Fracture
    Mechanical Investigations of Clinchable Sheet Metals Made of HCT590X,” <i>Key
    Engineering Materials</i>, vol. 883, pp. 127–132, 2021, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.'
  mla: Weiß, D., et al. “Numerical and Experimental Fracture Mechanical Investigations
    of Clinchable Sheet Metals Made of HCT590X.” <i>Key Engineering Materials</i>,
    vol. 883, 2021, pp. 127–32, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.127">10.4028/www.scientific.net/kem.883.127</a>.
  short: D. Weiß, B. Schramm, G. Kullmer, Key Engineering Materials 883 (2021) 127–132.
date_created: 2022-03-29T08:43:23Z
date_updated: 2023-01-02T10:33:13Z
doi: 10.4028/www.scientific.net/kem.883.127
intvolume: '       883'
language:
- iso: eng
page: 127-132
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '132'
  name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
  name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Key Engineering Materials
status: public
title: Numerical and Experimental Fracture Mechanical Investigations of Clinchable
  Sheet Metals Made of HCT590X
type: journal_article
user_id: '14931'
volume: 883
year: '2021'
...
---
_id: '29217'
abstract:
- lang: eng
  text: The circuit design and measurement results of a mixed-signal receiver baseband
    circuit for a wireless high data rate communication system are presented. The
    circuit design of the two most important system blocks of the sliced receiver
    baseband architecture, namely the broadband, programmable code-generator circuit,
    and the integrate and dump correlator circuit are explained. Using parallel sequence
    spread spectrum (PSSS) with PAM-4 modulated data, a net data rate of 2.22 Gbps
    is demonstrated with a single receiver baseband slice circuit working with a chip
    rate of 20 Gcps. A total of 15 slices are required to recover all 15 parallelly
    transmitted symbols resulting in the net data rate of 33.33 Gbps. This is the
    first reported implementation of a mixed-signal PSSS baseband circuit.
author:
- first_name: Abdul Rehman
  full_name: Javed, Abdul Rehman
  last_name: Javed
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
citation:
  ama: 'Javed AR, Scheytt JC. Mixed-Signal Receiver Baseband Slice for High-Data-Rate
    Communication Using 130 nm SiGe BiCMOS Technology. In: <i>2021 IEEE International
    Midwest Symposium on Circuits and Systems (MWSCAS)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">10.1109/MWSCAS47672.2021.9531711</a>'
  apa: Javed, A. R., &#38; Scheytt, J. C. (2021). Mixed-Signal Receiver Baseband Slice
    for High-Data-Rate Communication Using 130 nm SiGe BiCMOS Technology. <i>2021
    IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)</i>. <a
    href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">https://doi.org/10.1109/MWSCAS47672.2021.9531711</a>
  bibtex: '@inproceedings{Javed_Scheytt_2021, place={ Lansing, MI, USA}, title={Mixed-Signal
    Receiver Baseband Slice for High-Data-Rate Communication Using 130 nm SiGe BiCMOS
    Technology}, DOI={<a href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">10.1109/MWSCAS47672.2021.9531711</a>},
    booktitle={2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)},
    publisher={IEEE}, author={Javed, Abdul Rehman and Scheytt, J. Christoph}, year={2021}
    }'
  chicago: 'Javed, Abdul Rehman, and J. Christoph Scheytt. “Mixed-Signal Receiver
    Baseband Slice for High-Data-Rate Communication Using 130 Nm SiGe BiCMOS Technology.”
    In <i>2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)</i>.  Lansing,
    MI, USA: IEEE, 2021. <a href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">https://doi.org/10.1109/MWSCAS47672.2021.9531711</a>.'
  ieee: 'A. R. Javed and J. C. Scheytt, “Mixed-Signal Receiver Baseband Slice for
    High-Data-Rate Communication Using 130 nm SiGe BiCMOS Technology,” 2021, doi:
    <a href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">10.1109/MWSCAS47672.2021.9531711</a>.'
  mla: Javed, Abdul Rehman, and J. Christoph Scheytt. “Mixed-Signal Receiver Baseband
    Slice for High-Data-Rate Communication Using 130 Nm SiGe BiCMOS Technology.” <i>2021
    IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)</i>, IEEE,
    2021, doi:<a href="https://doi.org/10.1109/MWSCAS47672.2021.9531711">10.1109/MWSCAS47672.2021.9531711</a>.
  short: 'A.R. Javed, J.C. Scheytt, in: 2021 IEEE International Midwest Symposium
    on Circuits and Systems (MWSCAS), IEEE,  Lansing, MI, USA, 2021.'
date_created: 2022-01-11T08:08:33Z
date_updated: 2022-01-11T08:10:29Z
department:
- _id: '58'
doi: 10.1109/MWSCAS47672.2021.9531711
language:
- iso: eng
place: ' Lansing, MI, USA'
publication: 2021 IEEE International Midwest Symposium on Circuits and Systems (MWSCAS)
publication_identifier:
  eisbn:
  - 978-1-6654-2461-5
publisher: IEEE
related_material:
  link:
  - relation: confirmation
    url: https://ieeexplore.ieee.org/document/9531711/authors#authors
status: public
title: Mixed-Signal Receiver Baseband Slice for High-Data-Rate Communication Using
  130 nm SiGe BiCMOS Technology
type: conference
user_id: '15931'
year: '2021'
...
---
_id: '29221'
abstract:
- lang: eng
  text: An m-sequence radar with a high chip rate of 20 Gcps is presented that makes
    use of the large bandwidth available in the V-band (40-75 GHz) or at 240 GHz to
    reduce the detection resolution to 7.5 mm. Measurement results of a mixed-signal
    radar receiver baseband (BB) integrated circuit designed using 130 nm SiGe BiCMOS
    technology are presented along with a novel radar ranging concept for the mixed-signal
    radar BB.
author:
- first_name: Abdul Rehman
  full_name: Javed, Abdul Rehman
  last_name: Javed
- first_name: J. Christoph
  full_name: Scheytt, J. Christoph
  id: '37144'
  last_name: Scheytt
citation:
  ama: 'Javed AR, Scheytt JC. M-Sequence Radar for High Resolution Ranging with Mixed-Signal
    Radar Receiver Baseband Using 130nm SiGe BiCMOS Technology. In: <i>2020 17th European
    Radar Conference (EuRAD)</i>. IEEE; 2021. doi:<a href="https://doi.org/10.1109/EuRAD48048.2021.00029">10.1109/EuRAD48048.2021.00029</a>'
  apa: Javed, A. R., &#38; Scheytt, J. C. (2021). M-Sequence Radar for High Resolution
    Ranging with Mixed-Signal Radar Receiver Baseband Using 130nm SiGe BiCMOS Technology.
    <i>2020 17th European Radar Conference (EuRAD)</i>. <a href="https://doi.org/10.1109/EuRAD48048.2021.00029">https://doi.org/10.1109/EuRAD48048.2021.00029</a>
  bibtex: '@inproceedings{Javed_Scheytt_2021, place={Utrecht, Netherlands }, title={M-Sequence
    Radar for High Resolution Ranging with Mixed-Signal Radar Receiver Baseband Using
    130nm SiGe BiCMOS Technology}, DOI={<a href="https://doi.org/10.1109/EuRAD48048.2021.00029">10.1109/EuRAD48048.2021.00029</a>},
    booktitle={2020 17th European Radar Conference (EuRAD)}, publisher={IEEE}, author={Javed,
    Abdul Rehman and Scheytt, J. Christoph}, year={2021} }'
  chicago: 'Javed, Abdul Rehman, and J. Christoph Scheytt. “M-Sequence Radar for High
    Resolution Ranging with Mixed-Signal Radar Receiver Baseband Using 130nm SiGe
    BiCMOS Technology.” In <i>2020 17th European Radar Conference (EuRAD)</i>. Utrecht,
    Netherlands : IEEE, 2021. <a href="https://doi.org/10.1109/EuRAD48048.2021.00029">https://doi.org/10.1109/EuRAD48048.2021.00029</a>.'
  ieee: 'A. R. Javed and J. C. Scheytt, “M-Sequence Radar for High Resolution Ranging
    with Mixed-Signal Radar Receiver Baseband Using 130nm SiGe BiCMOS Technology,”
    2021, doi: <a href="https://doi.org/10.1109/EuRAD48048.2021.00029">10.1109/EuRAD48048.2021.00029</a>.'
  mla: Javed, Abdul Rehman, and J. Christoph Scheytt. “M-Sequence Radar for High Resolution
    Ranging with Mixed-Signal Radar Receiver Baseband Using 130nm SiGe BiCMOS Technology.”
    <i>2020 17th European Radar Conference (EuRAD)</i>, IEEE, 2021, doi:<a href="https://doi.org/10.1109/EuRAD48048.2021.00029">10.1109/EuRAD48048.2021.00029</a>.
  short: 'A.R. Javed, J.C. Scheytt, in: 2020 17th European Radar Conference (EuRAD),
    IEEE, Utrecht, Netherlands , 2021.'
conference:
  end_date: 15.01.2021
  start_date: 10.01.2021
date_created: 2022-01-11T08:37:46Z
date_updated: 2022-01-11T08:40:56Z
department:
- _id: '58'
doi: 10.1109/EuRAD48048.2021.00029
language:
- iso: eng
place: 'Utrecht, Netherlands '
publication: 2020 17th European Radar Conference (EuRAD)
publication_identifier:
  eisbn:
  - 978-2-87487-061-3
publisher: IEEE
related_material:
  link:
  - relation: confirmation
    url: https://ieeexplore.ieee.org/document/9337354/authors#authors
status: public
title: M-Sequence Radar for High Resolution Ranging with Mixed-Signal Radar Receiver
  Baseband Using 130nm SiGe BiCMOS Technology
type: conference
user_id: '15931'
year: '2021'
...
---
_id: '29699'
author:
- first_name: S. Alireza
  full_name: Ghasemi, S. Alireza
  last_name: Ghasemi
- first_name: Thomas D.
  full_name: Kühne, Thomas D.
  last_name: Kühne
citation:
  ama: Ghasemi SA, Kühne TD. Artificial neural networks for the kinetic energy functional
    of non-interacting fermions. <i>The Journal of Chemical Physics</i>. 2021;154(7):074107.
    doi:<a href="https://doi.org/10.1063/5.0037319">10.1063/5.0037319</a>
  apa: Ghasemi, S. A., &#38; Kühne, T. D. (2021). Artificial neural networks for the
    kinetic energy functional of non-interacting fermions. <i>The Journal of Chemical
    Physics</i>, <i>154</i>(7), 074107. <a href="https://doi.org/10.1063/5.0037319">https://doi.org/10.1063/5.0037319</a>
  bibtex: '@article{Ghasemi_Kühne_2021, title={Artificial neural networks for the
    kinetic energy functional of non-interacting fermions}, volume={154}, DOI={<a
    href="https://doi.org/10.1063/5.0037319">10.1063/5.0037319</a>}, number={7}, journal={The
    Journal of Chemical Physics}, author={Ghasemi, S. Alireza and Kühne, Thomas D.},
    year={2021}, pages={074107} }'
  chicago: 'Ghasemi, S. Alireza, and Thomas D. Kühne. “Artificial Neural Networks
    for the Kinetic Energy Functional of Non-Interacting Fermions.” <i>The Journal
    of Chemical Physics</i> 154, no. 7 (2021): 074107. <a href="https://doi.org/10.1063/5.0037319">https://doi.org/10.1063/5.0037319</a>.'
  ieee: 'S. A. Ghasemi and T. D. Kühne, “Artificial neural networks for the kinetic
    energy functional of non-interacting fermions,” <i>The Journal of Chemical Physics</i>,
    vol. 154, no. 7, p. 074107, 2021, doi: <a href="https://doi.org/10.1063/5.0037319">10.1063/5.0037319</a>.'
  mla: Ghasemi, S. Alireza, and Thomas D. Kühne. “Artificial Neural Networks for the
    Kinetic Energy Functional of Non-Interacting Fermions.” <i>The Journal of Chemical
    Physics</i>, vol. 154, no. 7, 2021, p. 074107, doi:<a href="https://doi.org/10.1063/5.0037319">10.1063/5.0037319</a>.
  short: S.A. Ghasemi, T.D. Kühne, The Journal of Chemical Physics 154 (2021) 074107.
date_created: 2022-01-31T10:59:01Z
date_updated: 2022-01-31T10:59:48Z
department:
- _id: '304'
doi: 10.1063/5.0037319
intvolume: '       154'
issue: '7'
language:
- iso: eng
page: '074107'
project:
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: The Journal of Chemical Physics
status: public
title: Artificial neural networks for the kinetic energy functional of non-interacting
  fermions
type: journal_article
user_id: '71692'
volume: 154
year: '2021'
...
---
_id: '31261'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>For a compact
    Riemannian locally symmetric space $\\mathcal M$ of rank 1 and an associated vector
    bundle $\\mathbf V_{\\tau }$ over the unit cosphere bundle $S^{\\ast }\\mathcal
    M$, we give a precise description of those classical (Pollicott–Ruelle) resonant
    states on $\\mathbf V_{\\tau }$ that vanish under covariant derivatives in the
    Anosov-unstable directions of the chaotic geodesic flow on $S^{\\ast }\\mathcal
    M$. In particular, we show that they are isomorphically mapped by natural pushforwards
    into generalized common eigenspaces of the algebra of invariant differential operators
    $D(G,\\sigma )$ on compatible associated vector bundles $\\mathbf W_{\\sigma }$
    over $\\mathcal M$. As a consequence of this description, we obtain an exact band
    structure of the Pollicott–Ruelle spectrum. Further, under some mild assumptions
    on the representations $\\tau$ and $\\sigma$ defining the bundles $\\mathbf V_{\\tau
    }$ and $\\mathbf W_{\\sigma }$, we obtain a very explicit description of the generalized
    common eigenspaces. This allows us to relate classical Pollicott–Ruelle resonances
    to quantum eigenvalues of a Laplacian in a suitable Hilbert space of sections
    of $\\mathbf W_{\\sigma }$. Our methods of proof are based on representation theory
    and Lie theory.</jats:p>"
author:
- first_name: Benjamin
  full_name: Küster, Benjamin
  last_name: Küster
- first_name: Tobias
  full_name: Weich, Tobias
  last_name: Weich
citation:
  ama: Küster B, Weich T. Quantum-Classical Correspondence on Associated Vector Bundles
    Over Locally Symmetric Spaces. <i>International Mathematics Research Notices</i>.
    2021;2021(11):8225-8296. doi:<a href="https://doi.org/10.1093/imrn/rnz068">10.1093/imrn/rnz068</a>
  apa: Küster, B., &#38; Weich, T. (2021). Quantum-Classical Correspondence on Associated
    Vector Bundles Over Locally Symmetric Spaces. <i>International Mathematics Research
    Notices</i>, <i>2021</i>(11), 8225–8296. <a href="https://doi.org/10.1093/imrn/rnz068">https://doi.org/10.1093/imrn/rnz068</a>
  bibtex: '@article{Küster_Weich_2021, title={Quantum-Classical Correspondence on
    Associated Vector Bundles Over Locally Symmetric Spaces}, volume={2021}, DOI={<a
    href="https://doi.org/10.1093/imrn/rnz068">10.1093/imrn/rnz068</a>}, number={11},
    journal={International Mathematics Research Notices}, publisher={Oxford University
    Press (OUP)}, author={Küster, Benjamin and Weich, Tobias}, year={2021}, pages={8225–8296}
    }'
  chicago: 'Küster, Benjamin, and Tobias Weich. “Quantum-Classical Correspondence
    on Associated Vector Bundles Over Locally Symmetric Spaces.” <i>International
    Mathematics Research Notices</i> 2021, no. 11 (2021): 8225–96. <a href="https://doi.org/10.1093/imrn/rnz068">https://doi.org/10.1093/imrn/rnz068</a>.'
  ieee: 'B. Küster and T. Weich, “Quantum-Classical Correspondence on Associated Vector
    Bundles Over Locally Symmetric Spaces,” <i>International Mathematics Research
    Notices</i>, vol. 2021, no. 11, pp. 8225–8296, 2021, doi: <a href="https://doi.org/10.1093/imrn/rnz068">10.1093/imrn/rnz068</a>.'
  mla: Küster, Benjamin, and Tobias Weich. “Quantum-Classical Correspondence on Associated
    Vector Bundles Over Locally Symmetric Spaces.” <i>International Mathematics Research
    Notices</i>, vol. 2021, no. 11, Oxford University Press (OUP), 2021, pp. 8225–96,
    doi:<a href="https://doi.org/10.1093/imrn/rnz068">10.1093/imrn/rnz068</a>.
  short: B. Küster, T. Weich, International Mathematics Research Notices 2021 (2021)
    8225–8296.
date_created: 2022-05-17T12:00:36Z
date_updated: 2022-05-25T06:42:01Z
department:
- _id: '10'
- _id: '623'
- _id: '548'
doi: 10.1093/imrn/rnz068
external_id:
  arxiv:
  - '1710.04625'
intvolume: '      2021'
issue: '11'
keyword:
- General Mathematics
language:
- iso: eng
page: 8225-8296
publication: International Mathematics Research Notices
publication_identifier:
  issn:
  - 1073-7928
  - 1687-0247
publication_status: published
publisher: Oxford University Press (OUP)
status: public
title: Quantum-Classical Correspondence on Associated Vector Bundles Over Locally
  Symmetric Spaces
type: journal_article
user_id: '49178'
volume: 2021
year: '2021'
...
---
_id: '27571'
abstract:
- lang: eng
  text: '<jats:p>(1) Background: Evidence has accumulated that patients with anorexia
    nervosa (AN) are at higher risk for vitamin D deficiency than healthy controls.
    In epidemiologic studies, low 25(OH) vitamin D (25(OH)D) levels were associated
    with depression. This study analyzed the relationship between 25(OH)D serum levels
    in adolescent patients and AN and depressive symptoms over the course of treatment.
    (2) Methods: 25(OH)D levels and depressive symptoms were analyzed in 93 adolescent
    (in-)patients with AN from the Anorexia Nervosa Day patient versus Inpatient (ANDI)
    multicenter trial at clinic admission, discharge, and 1 year follow up. Mixed
    regression models were used to analyze the relationship between 25(OH)D levels
    and depressive symptoms assessed by the Beck Depression Inventory (BDI-II). (3)
    Results: Although mean 25(OH)D levels constantly remained in recommended ranges
    (≥50 nmol/L) during AN treatment, levels decreased from (in)patient admission
    to 1 year follow up. Levels of 25(OH)D were neither cross-sectionally, prospectively,
    nor longitudinally associated with the BDI-II score. (4) Conclusions: This study
    did not confirm that 25(OH)D levels are associated with depressive symptoms in
    patients with AN. However, increasing risks of vitamin D deficiency over the course
    of AN treatment indicate that clinicians should monitor 25(OH)D levels.</jats:p>'
article_number: '2356'
author:
- first_name: Manuel
  full_name: Föcker, Manuel
  last_name: Föcker
- first_name: Nina
  full_name: Timmesfeld, Nina
  last_name: Timmesfeld
- first_name: Judith
  full_name: Bühlmeier, Judith
  id: '89838'
  last_name: Bühlmeier
- first_name: Denise
  full_name: Zwanziger, Denise
  last_name: Zwanziger
- first_name: Dagmar
  full_name: Führer, Dagmar
  last_name: Führer
- first_name: Corinna
  full_name: Grasemann, Corinna
  last_name: Grasemann
- first_name: Stefan
  full_name: Ehrlich, Stefan
  last_name: Ehrlich
- first_name: Karin
  full_name: Egberts, Karin
  last_name: Egberts
- first_name: Christian
  full_name: Fleischhaker, Christian
  last_name: Fleischhaker
- first_name: Christoph
  full_name: Wewetzer, Christoph
  last_name: Wewetzer
- first_name: Ida
  full_name: Wessing, Ida
  last_name: Wessing
- first_name: Jochen
  full_name: Seitz, Jochen
  last_name: Seitz
- first_name: Beate
  full_name: Herpertz-Dahlmann, Beate
  last_name: Herpertz-Dahlmann
- first_name: Johannes
  full_name: Hebebrand, Johannes
  last_name: Hebebrand
- first_name: Lars
  full_name: Libuda, Lars
  id: '88682'
  last_name: Libuda
  orcid: 0000-0003-1603-3133
citation:
  ama: 'Föcker M, Timmesfeld N, Bühlmeier J, et al. Vitamin D Level Trajectories of
    Adolescent Patients with Anorexia Nervosa at Inpatient Admission, during Treatment,
    and at One Year Follow Up: Association with Depressive Symptoms. <i>Nutrients</i>.
    Published online 2021. doi:<a href="https://doi.org/10.3390/nu13072356">10.3390/nu13072356</a>'
  apa: 'Föcker, M., Timmesfeld, N., Bühlmeier, J., Zwanziger, D., Führer, D., Grasemann,
    C., Ehrlich, S., Egberts, K., Fleischhaker, C., Wewetzer, C., Wessing, I., Seitz,
    J., Herpertz-Dahlmann, B., Hebebrand, J., &#38; Libuda, L. (2021). Vitamin D Level
    Trajectories of Adolescent Patients with Anorexia Nervosa at Inpatient Admission,
    during Treatment, and at One Year Follow Up: Association with Depressive Symptoms.
    <i>Nutrients</i>, Article 2356. <a href="https://doi.org/10.3390/nu13072356">https://doi.org/10.3390/nu13072356</a>'
  bibtex: '@article{Föcker_Timmesfeld_Bühlmeier_Zwanziger_Führer_Grasemann_Ehrlich_Egberts_Fleischhaker_Wewetzer_et
    al._2021, title={Vitamin D Level Trajectories of Adolescent Patients with Anorexia
    Nervosa at Inpatient Admission, during Treatment, and at One Year Follow Up: Association
    with Depressive Symptoms}, DOI={<a href="https://doi.org/10.3390/nu13072356">10.3390/nu13072356</a>},
    number={2356}, journal={Nutrients}, author={Föcker, Manuel and Timmesfeld, Nina
    and Bühlmeier, Judith and Zwanziger, Denise and Führer, Dagmar and Grasemann,
    Corinna and Ehrlich, Stefan and Egberts, Karin and Fleischhaker, Christian and
    Wewetzer, Christoph and et al.}, year={2021} }'
  chicago: 'Föcker, Manuel, Nina Timmesfeld, Judith Bühlmeier, Denise Zwanziger, Dagmar
    Führer, Corinna Grasemann, Stefan Ehrlich, et al. “Vitamin D Level Trajectories
    of Adolescent Patients with Anorexia Nervosa at Inpatient Admission, during Treatment,
    and at One Year Follow Up: Association with Depressive Symptoms.” <i>Nutrients</i>,
    2021. <a href="https://doi.org/10.3390/nu13072356">https://doi.org/10.3390/nu13072356</a>.'
  ieee: 'M. Föcker <i>et al.</i>, “Vitamin D Level Trajectories of Adolescent Patients
    with Anorexia Nervosa at Inpatient Admission, during Treatment, and at One Year
    Follow Up: Association with Depressive Symptoms,” <i>Nutrients</i>, Art. no. 2356,
    2021, doi: <a href="https://doi.org/10.3390/nu13072356">10.3390/nu13072356</a>.'
  mla: 'Föcker, Manuel, et al. “Vitamin D Level Trajectories of Adolescent Patients
    with Anorexia Nervosa at Inpatient Admission, during Treatment, and at One Year
    Follow Up: Association with Depressive Symptoms.” <i>Nutrients</i>, 2356, 2021,
    doi:<a href="https://doi.org/10.3390/nu13072356">10.3390/nu13072356</a>.'
  short: M. Föcker, N. Timmesfeld, J. Bühlmeier, D. Zwanziger, D. Führer, C. Grasemann,
    S. Ehrlich, K. Egberts, C. Fleischhaker, C. Wewetzer, I. Wessing, J. Seitz, B.
    Herpertz-Dahlmann, J. Hebebrand, L. Libuda, Nutrients (2021).
date_created: 2021-11-18T19:23:23Z
date_updated: 2022-09-15T09:42:11Z
department:
- _id: '35'
- _id: '22'
- _id: '395'
doi: 10.3390/nu13072356
extern: '1'
language:
- iso: eng
publication: Nutrients
publication_identifier:
  issn:
  - 2072-6643
publication_status: published
status: public
title: 'Vitamin D Level Trajectories of Adolescent Patients with Anorexia Nervosa
  at Inpatient Admission, during Treatment, and at One Year Follow Up: Association
  with Depressive Symptoms'
type: journal_article
user_id: '89838'
year: '2021'
...
---
_id: '26632'
abstract:
- lang: eng
  text: <jats:title>Abstract</jats:title><jats:p>Anorexia nervosa (AN) is a severe
    eating disorder and often associated with altered humoral immune responses. However,
    distinct B cell maturation stages in peripheral blood in adolescents with AN have
    not been characterized. Treatment effects and the relationship between clinical
    and B cell parameters are also not fully understood. Here we investigated the
    phenotype of circulating B cell subsets and the relationship with body composition
    in adolescents with AN before (T0, n = 24) and after 6 weeks (T1, n = 20) of treatment.
    Using multi-parameter flow cytometry, we found increased percentages of antigen-experienced
    B cells and plasmablasts in patients with AN compared to healthy controls (n = 20).
    In contrast, percentages of CD1d<jats:sup>+</jats:sup>CD5<jats:sup>+</jats:sup>
    B cells and transitional B cells with immunoregulatory roles were reduced at T0
    and T1. These B cell frequencies correlated positively with fat mass, fat mass
    index (FMI), free fat mass index, and body mass index standard deviation score.
    In addition, scavenger-like receptor CD5 expression levels were downregulated
    on transitional B cells and correlated with fat mass and FMI in AN. Our findings
    that regulatory B cell subgroups were reduced in AN and their strong relationship
    with body composition parameters point toward an impact of immunoregulatory B
    cells in the pathogenesis of AN.</jats:p>
author:
- first_name: Jana
  full_name: Freff, Jana
  last_name: Freff
- first_name: Kathrin
  full_name: Schwarte, Kathrin
  last_name: Schwarte
- first_name: Lisa
  full_name: Bröker, Lisa
  last_name: Bröker
- first_name: Judith
  full_name: Bühlmeier, Judith
  id: '89838'
  last_name: Bühlmeier
- first_name: Isabelle
  full_name: Kraft, Isabelle
  last_name: Kraft
- first_name: Dana
  full_name: Öztürk, Dana
  last_name: Öztürk
- first_name: Anke
  full_name: Hinney, Anke
  last_name: Hinney
- first_name: Volker
  full_name: Arolt, Volker
  last_name: Arolt
- first_name: Udo
  full_name: Dannlowski, Udo
  last_name: Dannlowski
- first_name: Georg
  full_name: Romer, Georg
  last_name: Romer
- first_name: Bernhard T.
  full_name: Baune, Bernhard T.
  last_name: Baune
- first_name: Johannes
  full_name: Hebebrand, Johannes
  last_name: Hebebrand
- first_name: Manuel
  full_name: Föcker, Manuel
  last_name: Föcker
- first_name: Judith
  full_name: Alferink, Judith
  last_name: Alferink
citation:
  ama: Freff J, Schwarte K, Bröker L, et al. Alterations in B cell subsets correlate
    with body composition parameters in female adolescents with anorexia nervosa.
    <i>Scientific Reports</i>. Published online 2021. doi:<a href="https://doi.org/10.1038/s41598-020-80693-4">10.1038/s41598-020-80693-4</a>
  apa: Freff, J., Schwarte, K., Bröker, L., Bühlmeier, J., Kraft, I., Öztürk, D.,
    Hinney, A., Arolt, V., Dannlowski, U., Romer, G., Baune, B. T., Hebebrand, J.,
    Föcker, M., &#38; Alferink, J. (2021). Alterations in B cell subsets correlate
    with body composition parameters in female adolescents with anorexia nervosa.
    <i>Scientific Reports</i>. <a href="https://doi.org/10.1038/s41598-020-80693-4">https://doi.org/10.1038/s41598-020-80693-4</a>
  bibtex: '@article{Freff_Schwarte_Bröker_Bühlmeier_Kraft_Öztürk_Hinney_Arolt_Dannlowski_Romer_et
    al._2021, title={Alterations in B cell subsets correlate with body composition
    parameters in female adolescents with anorexia nervosa}, DOI={<a href="https://doi.org/10.1038/s41598-020-80693-4">10.1038/s41598-020-80693-4</a>},
    journal={Scientific Reports}, author={Freff, Jana and Schwarte, Kathrin and Bröker,
    Lisa and Bühlmeier, Judith and Kraft, Isabelle and Öztürk, Dana and Hinney, Anke
    and Arolt, Volker and Dannlowski, Udo and Romer, Georg and et al.}, year={2021}
    }'
  chicago: Freff, Jana, Kathrin Schwarte, Lisa Bröker, Judith Bühlmeier, Isabelle
    Kraft, Dana Öztürk, Anke Hinney, et al. “Alterations in B Cell Subsets Correlate
    with Body Composition Parameters in Female Adolescents with Anorexia Nervosa.”
    <i>Scientific Reports</i>, 2021. <a href="https://doi.org/10.1038/s41598-020-80693-4">https://doi.org/10.1038/s41598-020-80693-4</a>.
  ieee: 'J. Freff <i>et al.</i>, “Alterations in B cell subsets correlate with body
    composition parameters in female adolescents with anorexia nervosa,” <i>Scientific
    Reports</i>, 2021, doi: <a href="https://doi.org/10.1038/s41598-020-80693-4">10.1038/s41598-020-80693-4</a>.'
  mla: Freff, Jana, et al. “Alterations in B Cell Subsets Correlate with Body Composition
    Parameters in Female Adolescents with Anorexia Nervosa.” <i>Scientific Reports</i>,
    2021, doi:<a href="https://doi.org/10.1038/s41598-020-80693-4">10.1038/s41598-020-80693-4</a>.
  short: J. Freff, K. Schwarte, L. Bröker, J. Bühlmeier, I. Kraft, D. Öztürk, A. Hinney,
    V. Arolt, U. Dannlowski, G. Romer, B.T. Baune, J. Hebebrand, M. Föcker, J. Alferink,
    Scientific Reports (2021).
date_created: 2021-10-20T18:56:17Z
date_updated: 2022-09-15T09:50:35Z
department:
- _id: '35'
- _id: '22'
- _id: '395'
doi: 10.1038/s41598-020-80693-4
extern: '1'
language:
- iso: eng
publication: Scientific Reports
publication_identifier:
  issn:
  - 2045-2322
publication_status: published
status: public
title: Alterations in B cell subsets correlate with body composition parameters in
  female adolescents with anorexia nervosa
type: journal_article
user_id: '89838'
year: '2021'
...
---
_id: '33434'
author:
- first_name: Margarita
  full_name: Knickenberg, Margarita
  id: '12978'
  last_name: Knickenberg
- first_name: Carmen
  full_name: Zurbriggen, Carmen
  last_name: Zurbriggen
citation:
  ama: 'Knickenberg M, Zurbriggen C. Die Bedeutsamkeit von Peers für Jugendliche in
    der Sekundarstufe und in der Freizeit. In: Hagenauer G, Raufelder D, eds. <i>G.
    Hagenauer &#38; D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen
    im Fokus von Schule und Lehrer*innenbildung</i>. Waxmann; 2021:335-350.'
  apa: Knickenberg, M., &#38; Zurbriggen, C. (2021). Die Bedeutsamkeit von Peers für
    Jugendliche in der Sekundarstufe und in der Freizeit. In G. Hagenauer &#38; D.
    Raufelder (Eds.), <i>G. Hagenauer &#38; D. Raufelder (Hrsg.), Soziale Eingebundenheit.
    Sozialbeziehungen im Fokus von Schule und Lehrer*innenbildung</i> (pp. 335–350).
    Waxmann.
  bibtex: '@inbook{Knickenberg_Zurbriggen_2021, place={Münster / New York}, title={Die
    Bedeutsamkeit von Peers für Jugendliche in der Sekundarstufe und in der Freizeit},
    booktitle={G. Hagenauer &#38; D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen
    im Fokus von Schule und Lehrer*innenbildung}, publisher={Waxmann}, author={Knickenberg,
    Margarita and Zurbriggen, Carmen}, editor={Hagenauer, G and Raufelder, D}, year={2021},
    pages={335–350} }'
  chicago: 'Knickenberg, Margarita, and Carmen Zurbriggen. “Die Bedeutsamkeit von
    Peers für Jugendliche in der Sekundarstufe und in der Freizeit.” In <i>G. Hagenauer
    &#38; D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen im Fokus
    von Schule und Lehrer*innenbildung</i>, edited by G Hagenauer and D Raufelder,
    335–50. Münster / New York: Waxmann, 2021.'
  ieee: 'M. Knickenberg and C. Zurbriggen, “Die Bedeutsamkeit von Peers für Jugendliche
    in der Sekundarstufe und in der Freizeit,” in <i>G. Hagenauer &#38; D. Raufelder
    (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen im Fokus von Schule und Lehrer*innenbildung</i>,
    G. Hagenauer and D. Raufelder, Eds. Münster / New York: Waxmann, 2021, pp. 335–350.'
  mla: Knickenberg, Margarita, and Carmen Zurbriggen. “Die Bedeutsamkeit von Peers
    für Jugendliche in der Sekundarstufe und in der Freizeit.” <i>G. Hagenauer &#38;
    D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen im Fokus von
    Schule und Lehrer*innenbildung</i>, edited by G Hagenauer and D Raufelder, Waxmann,
    2021, pp. 335–50.
  short: 'M. Knickenberg, C. Zurbriggen, in: G. Hagenauer, D. Raufelder (Eds.), G.
    Hagenauer &#38; D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen
    im Fokus von Schule und Lehrer*innenbildung, Waxmann, Münster / New York, 2021,
    pp. 335–350.'
date_created: 2022-09-17T09:17:48Z
date_updated: 2022-09-17T09:25:22Z
editor:
- first_name: G
  full_name: Hagenauer, G
  last_name: Hagenauer
- first_name: D
  full_name: Raufelder, D
  last_name: Raufelder
extern: '1'
language:
- iso: ger
page: 335-350
place: Münster / New York
publication: G. Hagenauer & D. Raufelder (Hrsg.), Soziale Eingebundenheit. Sozialbeziehungen
  im Fokus von Schule und Lehrer*innenbildung
publication_status: published
publisher: Waxmann
status: public
title: Die Bedeutsamkeit von Peers für Jugendliche in der Sekundarstufe und in der
  Freizeit
type: book_chapter
user_id: '74211'
year: '2021'
...
---
_id: '33587'
abstract:
- lang: eng
  text: "<jats:title>Abstract</jats:title>\r\n               <jats:p>We performed
    a virtual materials screening to identify promising topological materials for
    photocatalytic water splitting under visible light irradiation. Topological compounds
    were screened based on band gap, band edge energy, and thermodynamics stability
    criteria. In addition, topological types for our final candidates were computed
    based on electronic structures calculated usingthe hybrid density functional theory
    including exact Hartree–Fock exchange. Our final list contains materials which
    have band gaps between 1.0 and 2.7 eV in addition to band edge energies suitable
    for water oxidation and reduction. However, the topological types of these compounds
    calculated with the hybrid functional differ from those reported previously. To
    that end, we discuss the importance of computational methods for the calculation
    of atomic and electronic structures in materials screening processes.</jats:p>"
article_number: '015001'
author:
- first_name: Ahmad
  full_name: Ranjbar, Ahmad
  last_name: Ranjbar
- first_name: Hossein
  full_name: Mirhosseini, Hossein
  last_name: Mirhosseini
- first_name: Thomas D
  full_name: Kühne, Thomas D
  last_name: Kühne
citation:
  ama: 'Ranjbar A, Mirhosseini H, Kühne TD. On topological materials as photocatalysts
    for water splitting by visible light. <i>Journal of Physics: Materials</i>. 2021;5(1).
    doi:<a href="https://doi.org/10.1088/2515-7639/ac363d">10.1088/2515-7639/ac363d</a>'
  apa: 'Ranjbar, A., Mirhosseini, H., &#38; Kühne, T. D. (2021). On topological materials
    as photocatalysts for water splitting by visible light. <i>Journal of Physics:
    Materials</i>, <i>5</i>(1), Article 015001. <a href="https://doi.org/10.1088/2515-7639/ac363d">https://doi.org/10.1088/2515-7639/ac363d</a>'
  bibtex: '@article{Ranjbar_Mirhosseini_Kühne_2021, title={On topological materials
    as photocatalysts for water splitting by visible light}, volume={5}, DOI={<a href="https://doi.org/10.1088/2515-7639/ac363d">10.1088/2515-7639/ac363d</a>},
    number={1015001}, journal={Journal of Physics: Materials}, publisher={IOP Publishing},
    author={Ranjbar, Ahmad and Mirhosseini, Hossein and Kühne, Thomas D}, year={2021}
    }'
  chicago: 'Ranjbar, Ahmad, Hossein Mirhosseini, and Thomas D Kühne. “On Topological
    Materials as Photocatalysts for Water Splitting by Visible Light.” <i>Journal
    of Physics: Materials</i> 5, no. 1 (2021). <a href="https://doi.org/10.1088/2515-7639/ac363d">https://doi.org/10.1088/2515-7639/ac363d</a>.'
  ieee: 'A. Ranjbar, H. Mirhosseini, and T. D. Kühne, “On topological materials as
    photocatalysts for water splitting by visible light,” <i>Journal of Physics: Materials</i>,
    vol. 5, no. 1, Art. no. 015001, 2021, doi: <a href="https://doi.org/10.1088/2515-7639/ac363d">10.1088/2515-7639/ac363d</a>.'
  mla: 'Ranjbar, Ahmad, et al. “On Topological Materials as Photocatalysts for Water
    Splitting by Visible Light.” <i>Journal of Physics: Materials</i>, vol. 5, no.
    1, 015001, IOP Publishing, 2021, doi:<a href="https://doi.org/10.1088/2515-7639/ac363d">10.1088/2515-7639/ac363d</a>.'
  short: 'A. Ranjbar, H. Mirhosseini, T.D. Kühne, Journal of Physics: Materials 5
    (2021).'
date_created: 2022-10-09T15:25:09Z
date_updated: 2022-10-09T15:25:19Z
department:
- _id: '613'
doi: 10.1088/2515-7639/ac363d
intvolume: '         5'
issue: '1'
keyword:
- Condensed Matter Physics
- General Materials Science
- Atomic and Molecular Physics
- and Optics
language:
- iso: eng
publication: 'Journal of Physics: Materials'
publication_identifier:
  issn:
  - 2515-7639
publication_status: published
publisher: IOP Publishing
status: public
title: On topological materials as photocatalysts for water splitting by visible light
type: journal_article
user_id: '71051'
volume: 5
year: '2021'
...
---
_id: '33643'
abstract:
- lang: eng
  text: <jats:p>The origin of strong interactions between water molecules and porous
    C<jats:sub>2</jats:sub>N surfaces is investigated by using a combination of model
    materials, volumetric physisorption measurements, solid-state NMR spectroscopy,
    and DFT calculations.</jats:p>
author:
- first_name: Julian Joachim
  full_name: Heske, Julian Joachim
  id: '53238'
  last_name: Heske
- first_name: Ralf
  full_name: Walczak, Ralf
  last_name: Walczak
- first_name: Jan D.
  full_name: Epping, Jan D.
  last_name: Epping
- first_name: Sol
  full_name: Youk, Sol
  last_name: Youk
- first_name: Sudhir K.
  full_name: Sahoo, Sudhir K.
  last_name: Sahoo
- first_name: Markus
  full_name: Antonietti, Markus
  last_name: Antonietti
- first_name: Thomas
  full_name: Kühne, Thomas
  id: '49079'
  last_name: Kühne
- first_name: Martin
  full_name: Oschatz, Martin
  last_name: Oschatz
citation:
  ama: Heske JJ, Walczak R, Epping JD, et al. When water becomes an integral part
    of carbon – combining theory and experiment to understand the zeolite-like water
    adsorption properties of porous C<sub>2</sub>N materials. <i>Journal of Materials
    Chemistry A</i>. 2021;9(39):22563-22572. doi:<a href="https://doi.org/10.1039/d1ta05122a">10.1039/d1ta05122a</a>
  apa: Heske, J. J., Walczak, R., Epping, J. D., Youk, S., Sahoo, S. K., Antonietti,
    M., Kühne, T., &#38; Oschatz, M. (2021). When water becomes an integral part of
    carbon – combining theory and experiment to understand the zeolite-like water
    adsorption properties of porous C<sub>2</sub>N materials. <i>Journal of Materials
    Chemistry A</i>, <i>9</i>(39), 22563–22572. <a href="https://doi.org/10.1039/d1ta05122a">https://doi.org/10.1039/d1ta05122a</a>
  bibtex: '@article{Heske_Walczak_Epping_Youk_Sahoo_Antonietti_Kühne_Oschatz_2021,
    title={When water becomes an integral part of carbon – combining theory and experiment
    to understand the zeolite-like water adsorption properties of porous C<sub>2</sub>N
    materials}, volume={9}, DOI={<a href="https://doi.org/10.1039/d1ta05122a">10.1039/d1ta05122a</a>},
    number={39}, journal={Journal of Materials Chemistry A}, publisher={Royal Society
    of Chemistry (RSC)}, author={Heske, Julian Joachim and Walczak, Ralf and Epping,
    Jan D. and Youk, Sol and Sahoo, Sudhir K. and Antonietti, Markus and Kühne, Thomas
    and Oschatz, Martin}, year={2021}, pages={22563–22572} }'
  chicago: 'Heske, Julian Joachim, Ralf Walczak, Jan D. Epping, Sol Youk, Sudhir K.
    Sahoo, Markus Antonietti, Thomas Kühne, and Martin Oschatz. “When Water Becomes
    an Integral Part of Carbon – Combining Theory and Experiment to Understand the
    Zeolite-like Water Adsorption Properties of Porous C<sub>2</sub>N Materials.”
    <i>Journal of Materials Chemistry A</i> 9, no. 39 (2021): 22563–72. <a href="https://doi.org/10.1039/d1ta05122a">https://doi.org/10.1039/d1ta05122a</a>.'
  ieee: 'J. J. Heske <i>et al.</i>, “When water becomes an integral part of carbon
    – combining theory and experiment to understand the zeolite-like water adsorption
    properties of porous C<sub>2</sub>N materials,” <i>Journal of Materials Chemistry
    A</i>, vol. 9, no. 39, pp. 22563–22572, 2021, doi: <a href="https://doi.org/10.1039/d1ta05122a">10.1039/d1ta05122a</a>.'
  mla: Heske, Julian Joachim, et al. “When Water Becomes an Integral Part of Carbon
    – Combining Theory and Experiment to Understand the Zeolite-like Water Adsorption
    Properties of Porous C<sub>2</sub>N Materials.” <i>Journal of Materials Chemistry
    A</i>, vol. 9, no. 39, Royal Society of Chemistry (RSC), 2021, pp. 22563–72, doi:<a
    href="https://doi.org/10.1039/d1ta05122a">10.1039/d1ta05122a</a>.
  short: J.J. Heske, R. Walczak, J.D. Epping, S. Youk, S.K. Sahoo, M. Antonietti,
    T. Kühne, M. Oschatz, Journal of Materials Chemistry A 9 (2021) 22563–22572.
date_created: 2022-10-10T08:08:53Z
date_updated: 2022-10-10T08:09:44Z
department:
- _id: '613'
doi: 10.1039/d1ta05122a
intvolume: '         9'
issue: '39'
keyword:
- General Materials Science
- Renewable Energy
- Sustainability and the Environment
- General Chemistry
language:
- iso: eng
page: 22563-22572
publication: Journal of Materials Chemistry A
publication_identifier:
  issn:
  - 2050-7488
  - 2050-7496
publication_status: published
publisher: Royal Society of Chemistry (RSC)
status: public
title: When water becomes an integral part of carbon – combining theory and experiment
  to understand the zeolite-like water adsorption properties of porous C<sub>2</sub>N
  materials
type: journal_article
user_id: '71051'
volume: 9
year: '2021'
...
---
_id: '21509'
author:
- first_name: Stefanie Jutta Marianne
  full_name: Müller, Stefanie Jutta Marianne
  id: '70858'
  last_name: Müller
- first_name: Dennis
  full_name: Kundisch, Dennis
  id: '21117'
  last_name: Kundisch
citation:
  ama: 'Müller SJM, Kundisch D. Gesellschaftliche Transformationen durch die Steigerung
    (popmusik)kultureller Teil-habe mittels innovativer Preiskonzepte – ein interdisziplinärer
    Literaturüberblick. In: ; 2021.'
  apa: Müller, S. J. M., &#38; Kundisch, D. (2021). <i>Gesellschaftliche Transformationen
    durch die Steigerung (popmusik)kultureller Teil-habe mittels innovativer Preiskonzepte
    – ein interdisziplinärer Literaturüberblick</i>. 4th IASPM D-A-CH Conference,
    Virtual Conference/Workshop.
  bibtex: '@inproceedings{Müller_Kundisch_2021, title={Gesellschaftliche Transformationen
    durch die Steigerung (popmusik)kultureller Teil-habe mittels innovativer Preiskonzepte
    – ein interdisziplinärer Literaturüberblick}, author={Müller, Stefanie Jutta Marianne
    and Kundisch, Dennis}, year={2021} }'
  chicago: Müller, Stefanie Jutta Marianne, and Dennis Kundisch. “Gesellschaftliche
    Transformationen durch die Steigerung (popmusik)kultureller Teil-habe mittels
    innovativer Preiskonzepte – ein interdisziplinärer Literaturüberblick,” 2021.
  ieee: S. J. M. Müller and D. Kundisch, “Gesellschaftliche Transformationen durch
    die Steigerung (popmusik)kultureller Teil-habe mittels innovativer Preiskonzepte
    – ein interdisziplinärer Literaturüberblick,” presented at the 4th IASPM D-A-CH
    Conference, Virtual Conference/Workshop, 2021.
  mla: Müller, Stefanie Jutta Marianne, and Dennis Kundisch. <i>Gesellschaftliche
    Transformationen durch die Steigerung (popmusik)kultureller Teil-habe mittels
    innovativer Preiskonzepte – ein interdisziplinärer Literaturüberblick</i>. 2021.
  short: 'S.J.M. Müller, D. Kundisch, in: 2021.'
conference:
  location: Virtual Conference/Workshop
  name: 4th IASPM D-A-CH Conference
date_created: 2021-03-15T14:33:50Z
date_updated: 2022-10-26T10:01:17Z
department:
- _id: '276'
language:
- iso: ger
status: public
title: Gesellschaftliche Transformationen durch die Steigerung (popmusik)kultureller
  Teil-habe mittels innovativer Preiskonzepte – ein interdisziplinärer Literaturüberblick
type: conference_abstract
user_id: '16205'
year: '2021'
...
---
_id: '33895'
abstract:
- lang: eng
  text: <jats:p>Heat-assisted forming processes are becoming increasingly important
    in the manufacturing of sheet metal parts for body-in-white applications. However,
    the non-isothermal nature of these processes leads to challenges in evaluating
    the forming limits, since established methods such as Forming Limit Curves (FLCs)
    only allow the assessment of critical forming strains for steady temperatures.
    For this reason, a temperature-dependent extension of the well-established GISSMO
    (Generalized Incremental Stress State Dependent Damage Model) fracture indicator
    framework is developed by the authors to predict forming failures under non-isothermal
    conditions. In this paper, a general approach to combine several isothermal FLCs
    within the temperature-extended GISSMO model into a temperature-dependent forming
    limit surface is investigated. The general capabilities of the model are tested
    in a coupled thermo-mechanical FEA using the example of warm forming of an AA5182-O
    sheet metal cross-die cup. The obtained results are then compared with state of
    the art of evaluation methods. By taking the strain and temperature path into
    account, GISSMO predicts greater drawing depths by up to 20% than established
    methods. In this way the forming and so the lightweight potential of sheet metal
    parts can by fully exploited. Moreover, the risk and locus of failure can be evaluated
    directly on the part geometry by a contour plot. An additional advantage of the
    GISSMO model is the applicability for low triaxialities as well as the possibility
    to predict the materials behavior beyond necking up to ductile fracture.</jats:p>
article_number: '5106'
author:
- first_name: Alan Adam
  full_name: Camberg, Alan Adam
  id: '60544'
  last_name: Camberg
- first_name: Tobias
  full_name: Erhart, Tobias
  last_name: Erhart
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Camberg AA, Erhart T, Tröster T. A Generalized Stress State and Temperature
    Dependent Damage Indicator Framework for Ductile Failure Prediction in Heat-Assisted
    Forming Operations. <i>Materials</i>. 2021;14(17). doi:<a href="https://doi.org/10.3390/ma14175106">10.3390/ma14175106</a>
  apa: Camberg, A. A., Erhart, T., &#38; Tröster, T. (2021). A Generalized Stress
    State and Temperature Dependent Damage Indicator Framework for Ductile Failure
    Prediction in Heat-Assisted Forming Operations. <i>Materials</i>, <i>14</i>(17),
    Article 5106. <a href="https://doi.org/10.3390/ma14175106">https://doi.org/10.3390/ma14175106</a>
  bibtex: '@article{Camberg_Erhart_Tröster_2021, title={A Generalized Stress State
    and Temperature Dependent Damage Indicator Framework for Ductile Failure Prediction
    in Heat-Assisted Forming Operations}, volume={14}, DOI={<a href="https://doi.org/10.3390/ma14175106">10.3390/ma14175106</a>},
    number={175106}, journal={Materials}, publisher={MDPI AG}, author={Camberg, Alan
    Adam and Erhart, Tobias and Tröster, Thomas}, year={2021} }'
  chicago: Camberg, Alan Adam, Tobias Erhart, and Thomas Tröster. “A Generalized Stress
    State and Temperature Dependent Damage Indicator Framework for Ductile Failure
    Prediction in Heat-Assisted Forming Operations.” <i>Materials</i> 14, no. 17 (2021).
    <a href="https://doi.org/10.3390/ma14175106">https://doi.org/10.3390/ma14175106</a>.
  ieee: 'A. A. Camberg, T. Erhart, and T. Tröster, “A Generalized Stress State and
    Temperature Dependent Damage Indicator Framework for Ductile Failure Prediction
    in Heat-Assisted Forming Operations,” <i>Materials</i>, vol. 14, no. 17, Art.
    no. 5106, 2021, doi: <a href="https://doi.org/10.3390/ma14175106">10.3390/ma14175106</a>.'
  mla: Camberg, Alan Adam, et al. “A Generalized Stress State and Temperature Dependent
    Damage Indicator Framework for Ductile Failure Prediction in Heat-Assisted Forming
    Operations.” <i>Materials</i>, vol. 14, no. 17, 5106, MDPI AG, 2021, doi:<a href="https://doi.org/10.3390/ma14175106">10.3390/ma14175106</a>.
  short: A.A. Camberg, T. Erhart, T. Tröster, Materials 14 (2021).
date_created: 2022-10-27T10:04:46Z
date_updated: 2022-10-27T10:05:36Z
department:
- _id: '9'
- _id: '149'
- _id: '321'
doi: 10.3390/ma14175106
intvolume: '        14'
issue: '17'
keyword:
- General Materials Science
language:
- iso: eng
publication: Materials
publication_identifier:
  issn:
  - 1996-1944
publication_status: published
publisher: MDPI AG
status: public
title: A Generalized Stress State and Temperature Dependent Damage Indicator Framework
  for Ductile Failure Prediction in Heat-Assisted Forming Operations
type: journal_article
user_id: '15952'
volume: 14
year: '2021'
...
---
_id: '30698'
author:
- first_name: B.
  full_name: Gröger, B.
  last_name: Gröger
- first_name: D.
  full_name: Köhler, D.
  last_name: Köhler
- first_name: J.
  full_name: Vorderbrüggen, J.
  last_name: Vorderbrüggen
- first_name: J.
  full_name: Troschitz, J.
  last_name: Troschitz
- first_name: R.
  full_name: Kupfer, R.
  last_name: Kupfer
- first_name: G.
  full_name: Meschut, G.
  last_name: Meschut
- first_name: M.
  full_name: Gude, M.
  last_name: Gude
citation:
  ama: Gröger B, Köhler D, Vorderbrüggen J, et al. Computed tomography investigation
    of the material structure in clinch joints in aluminium fibre-reinforced thermoplastic
    sheets. <i>Production Engineering</i>. Published online 2021. doi:<a href="https://doi.org/10.1007/s11740-021-01091-x">10.1007/s11740-021-01091-x</a>
  apa: Gröger, B., Köhler, D., Vorderbrüggen, J., Troschitz, J., Kupfer, R., Meschut,
    G., &#38; Gude, M. (2021). Computed tomography investigation of the material structure
    in clinch joints in aluminium fibre-reinforced thermoplastic sheets. <i>Production
    Engineering</i>. <a href="https://doi.org/10.1007/s11740-021-01091-x">https://doi.org/10.1007/s11740-021-01091-x</a>
  bibtex: '@article{Gröger_Köhler_Vorderbrüggen_Troschitz_Kupfer_Meschut_Gude_2021,
    title={Computed tomography investigation of the material structure in clinch joints
    in aluminium fibre-reinforced thermoplastic sheets}, DOI={<a href="https://doi.org/10.1007/s11740-021-01091-x">10.1007/s11740-021-01091-x</a>},
    journal={Production Engineering}, author={Gröger, B. and Köhler, D. and Vorderbrüggen,
    J. and Troschitz, J. and Kupfer, R. and Meschut, G. and Gude, M.}, year={2021}
    }'
  chicago: Gröger, B., D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut,
    and M. Gude. “Computed Tomography Investigation of the Material Structure in Clinch
    Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” <i>Production Engineering</i>,
    2021. <a href="https://doi.org/10.1007/s11740-021-01091-x">https://doi.org/10.1007/s11740-021-01091-x</a>.
  ieee: 'B. Gröger <i>et al.</i>, “Computed tomography investigation of the material
    structure in clinch joints in aluminium fibre-reinforced thermoplastic sheets,”
    <i>Production Engineering</i>, 2021, doi: <a href="https://doi.org/10.1007/s11740-021-01091-x">10.1007/s11740-021-01091-x</a>.'
  mla: Gröger, B., et al. “Computed Tomography Investigation of the Material Structure
    in Clinch Joints in Aluminium Fibre-Reinforced Thermoplastic Sheets.” <i>Production
    Engineering</i>, 2021, doi:<a href="https://doi.org/10.1007/s11740-021-01091-x">10.1007/s11740-021-01091-x</a>.
  short: B. Gröger, D. Köhler, J. Vorderbrüggen, J. Troschitz, R. Kupfer, G. Meschut,
    M. Gude, Production Engineering (2021).
date_created: 2022-03-29T09:15:36Z
date_updated: 2023-01-02T11:18:51Z
department:
- _id: '157'
- _id: '630'
doi: 10.1007/s11740-021-01091-x
language:
- iso: eng
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '131'
  name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '137'
  name: 'TRR 285 – A03: TRR 285 - Subproject A03'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '148'
  name: 'TRR 285 – C04: TRR 285 - Subproject C04'
publication: Production Engineering
status: public
title: Computed tomography investigation of the material structure in clinch joints
  in aluminium fibre-reinforced thermoplastic sheets
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30699'
author:
- first_name: D.
  full_name: Weiß, D.
  last_name: Weiß
- first_name: B.
  full_name: Schramm, B.
  last_name: Schramm
- first_name: G.
  full_name: Kullmer, G.
  last_name: Kullmer
citation:
  ama: Weiß D, Schramm B, Kullmer G. Holistic investigation chain for the experimental
    determination of fracture mechanical material parameters with special specimens.
    <i>Production Engineering</i>. Published online 2021. doi:<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>
  apa: Weiß, D., Schramm, B., &#38; Kullmer, G. (2021). Holistic investigation chain
    for the experimental determination of fracture mechanical material parameters
    with special specimens. <i>Production Engineering</i>. <a href="https://doi.org/10.1007/s11740-021-01096-6">https://doi.org/10.1007/s11740-021-01096-6</a>
  bibtex: '@article{Weiß_Schramm_Kullmer_2021, title={Holistic investigation chain
    for the experimental determination of fracture mechanical material parameters
    with special specimens}, DOI={<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>},
    journal={Production Engineering}, author={Weiß, D. and Schramm, B. and Kullmer,
    G.}, year={2021} }'
  chicago: Weiß, D., B. Schramm, and G. Kullmer. “Holistic Investigation Chain for
    the Experimental Determination of Fracture Mechanical Material Parameters with
    Special Specimens.” <i>Production Engineering</i>, 2021. <a href="https://doi.org/10.1007/s11740-021-01096-6">https://doi.org/10.1007/s11740-021-01096-6</a>.
  ieee: 'D. Weiß, B. Schramm, and G. Kullmer, “Holistic investigation chain for the
    experimental determination of fracture mechanical material parameters with special
    specimens,” <i>Production Engineering</i>, 2021, doi: <a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>.'
  mla: Weiß, D., et al. “Holistic Investigation Chain for the Experimental Determination
    of Fracture Mechanical Material Parameters with Special Specimens.” <i>Production
    Engineering</i>, 2021, doi:<a href="https://doi.org/10.1007/s11740-021-01096-6">10.1007/s11740-021-01096-6</a>.
  short: D. Weiß, B. Schramm, G. Kullmer, Production Engineering (2021).
date_created: 2022-03-29T09:17:55Z
date_updated: 2023-01-02T11:19:11Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01096-6
language:
- iso: eng
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '132'
  name: 'TRR 285 - B: TRR 285 - Project Area B'
- _id: '143'
  name: 'TRR 285 – B04: TRR 285 - Subproject B04'
publication: Production Engineering
status: public
title: Holistic investigation chain for the experimental determination of fracture
  mechanical material parameters with special specimens
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30701'
author:
- first_name: D.
  full_name: Römisch, D.
  last_name: Römisch
- first_name: J.
  full_name: Popp, J.
  last_name: Popp
- first_name: D.
  full_name: Drummer, D.
  last_name: Drummer
- first_name: M.
  full_name: Merklein, M.
  last_name: Merklein
citation:
  ama: Römisch D, Popp J, Drummer D, Merklein M. Joining of CFRT-steel hybrid parts
    via hole-forming and subsequent pin caulking. <i>Production Engineering</i>. Published
    online 2021. doi:<a href="https://doi.org/10.1007/s11740-021-01093-9">10.1007/s11740-021-01093-9</a>
  apa: Römisch, D., Popp, J., Drummer, D., &#38; Merklein, M. (2021). Joining of CFRT-steel
    hybrid parts via hole-forming and subsequent pin caulking. <i>Production Engineering</i>.
    <a href="https://doi.org/10.1007/s11740-021-01093-9">https://doi.org/10.1007/s11740-021-01093-9</a>
  bibtex: '@article{Römisch_Popp_Drummer_Merklein_2021, title={Joining of CFRT-steel
    hybrid parts via hole-forming and subsequent pin caulking}, DOI={<a href="https://doi.org/10.1007/s11740-021-01093-9">10.1007/s11740-021-01093-9</a>},
    journal={Production Engineering}, author={Römisch, D. and Popp, J. and Drummer,
    D. and Merklein, M.}, year={2021} }'
  chicago: Römisch, D., J. Popp, D. Drummer, and M. Merklein. “Joining of CFRT-Steel
    Hybrid Parts via Hole-Forming and Subsequent Pin Caulking.” <i>Production Engineering</i>,
    2021. <a href="https://doi.org/10.1007/s11740-021-01093-9">https://doi.org/10.1007/s11740-021-01093-9</a>.
  ieee: 'D. Römisch, J. Popp, D. Drummer, and M. Merklein, “Joining of CFRT-steel
    hybrid parts via hole-forming and subsequent pin caulking,” <i>Production Engineering</i>,
    2021, doi: <a href="https://doi.org/10.1007/s11740-021-01093-9">10.1007/s11740-021-01093-9</a>.'
  mla: Römisch, D., et al. “Joining of CFRT-Steel Hybrid Parts via Hole-Forming and
    Subsequent Pin Caulking.” <i>Production Engineering</i>, 2021, doi:<a href="https://doi.org/10.1007/s11740-021-01093-9">10.1007/s11740-021-01093-9</a>.
  short: D. Römisch, J. Popp, D. Drummer, M. Merklein, Production Engineering (2021).
date_created: 2022-03-29T09:21:36Z
date_updated: 2023-01-02T11:20:14Z
department:
- _id: '630'
doi: 10.1007/s11740-021-01093-9
language:
- iso: eng
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
  name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Production Engineering
status: public
title: Joining of CFRT-steel hybrid parts via hole-forming and subsequent pin caulking
type: journal_article
user_id: '14931'
year: '2021'
...
---
_id: '30684'
abstract:
- lang: eng
  text: Due to stricter emission targets in the mobility sector and the resulting
    trend towards lightweight construction in order to reduce weight and consequently
    emissions, multi-material systems that allow a material to be placed in the right
    quantity and in the right place are becoming increasingly important. One major
    challenge that is holding back the rapid and widespread use of multi-material
    systems is the lack of adequate joining processes that are suitable for joining
    dissimilar materials. Joining processes without auxiliary elements have the advantage
    of a reduced assembly effort and no additional added weight. Conventional joining
    processes without auxiliary elements, such as welding, clinching, or the use of
    adhesives, reach their limits due to different mechanical properties and chemical
    incompatibilities. A process with potential in the field of joining dissimilar
    materials is joining without an auxiliary element using pin structures. However,
    current pin manufacturing processes are mostly time-consuming or can only be integrated
    barely into existing industrial manufacturing processes due to their specific
    properties. For this reason, the present work investigates the production of single-
    and multi-pin structures from high-strength dual-phase steel HCT590X + Z (DP600,
    t0 = 1.5 mm) by cold extrusion directly out of the sheet metal. These structures
    are subsequently joined with an aluminium sheet (EN AW-6014-T4, t0 = 1.5 mm) by
    direct pin pressing. For a quantitative evaluation of the joint quality, tensile
    shear tests are carried out and the influence of different pin heights, pin number,
    and pin arrangements, as well as different joining strategies on the joint strength
    is experimentally evaluated. It is proven that a single pin structure with a diameter
    of 1.5 mm and an average height of 1.86 mm achieves a maximum tensile shear force
    of 1025 N. The results reveal that the formation of a form-fit during direct pin
    pressing is essential for the joint strength. By increasing the number of pins,
    a linear increase in force could be demonstrated, which is independent of the
    arrangement of the pin structures.
author:
- first_name: D.
  full_name: Römisch, D.
  last_name: Römisch
- first_name: M.
  full_name: Kraus, M.
  last_name: Kraus
- first_name: M.
  full_name: Merklein, M.
  last_name: Merklein
citation:
  ama: Römisch D, Kraus M, Merklein M. Experimental study on joining by forming of
    hct590x + z and en-aw 6014 sheets using cold extruded pin structures. <i>Journal
    of Manufacturing and Materials Processing</i>. 2021;5:25. doi:<a href="https://doi.org/10.3390/jmmp5010025">10.3390/jmmp5010025</a>
  apa: Römisch, D., Kraus, M., &#38; Merklein, M. (2021). Experimental study on joining
    by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures.
    <i>Journal of Manufacturing and Materials Processing</i>, <i>5</i>, 25. <a href="https://doi.org/10.3390/jmmp5010025">https://doi.org/10.3390/jmmp5010025</a>
  bibtex: '@article{Römisch_Kraus_Merklein_2021, title={Experimental study on joining
    by forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures},
    volume={5}, DOI={<a href="https://doi.org/10.3390/jmmp5010025">10.3390/jmmp5010025</a>},
    journal={Journal of Manufacturing and Materials Processing}, author={Römisch,
    D. and Kraus, M. and Merklein, M.}, year={2021}, pages={25} }'
  chicago: 'Römisch, D., M. Kraus, and M. Merklein. “Experimental Study on Joining
    by Forming of Hct590x + z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.”
    <i>Journal of Manufacturing and Materials Processing</i> 5 (2021): 25. <a href="https://doi.org/10.3390/jmmp5010025">https://doi.org/10.3390/jmmp5010025</a>.'
  ieee: 'D. Römisch, M. Kraus, and M. Merklein, “Experimental study on joining by
    forming of hct590x + z and en-aw 6014 sheets using cold extruded pin structures,”
    <i>Journal of Manufacturing and Materials Processing</i>, vol. 5, p. 25, 2021,
    doi: <a href="https://doi.org/10.3390/jmmp5010025">10.3390/jmmp5010025</a>.'
  mla: Römisch, D., et al. “Experimental Study on Joining by Forming of Hct590x +
    z and En-Aw 6014 Sheets Using Cold Extruded Pin Structures.” <i>Journal of Manufacturing
    and Materials Processing</i>, vol. 5, 2021, p. 25, doi:<a href="https://doi.org/10.3390/jmmp5010025">10.3390/jmmp5010025</a>.
  short: D. Römisch, M. Kraus, M. Merklein, Journal of Manufacturing and Materials
    Processing 5 (2021) 25.
date_created: 2022-03-29T08:48:14Z
date_updated: 2023-01-02T11:47:27Z
department:
- _id: '630'
doi: 10.3390/jmmp5010025
intvolume: '         5'
language:
- iso: eng
page: '25'
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
  name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Journal of Manufacturing and Materials Processing
status: public
title: Experimental study on joining by forming of hct590x + z and en-aw 6014 sheets
  using cold extruded pin structures
type: journal_article
user_id: '14931'
volume: 5
year: '2021'
...
---
_id: '30682'
abstract:
- lang: eng
  text: 'Lightweight constructions become more and more important, especially in the
    mobility sector. In this industry, the increasingly strict regulations regarding
    the emissions of carbon dioxide can be achieved to a certain extent by reducing
    the vehicle weight. Thus, multi-material systems are used. Conventional joining
    techniques reach their limits when joining different materials due to different
    thermal expansion, unequal stiffness or chemical incompatibilities. This is why
    additional joining elements or adhesives are used. These must be viewed critically
    regarding a lightweight and resource-efficient production, since they add weight
    or complicate the recycling process of these components. Consequently, there is
    a great and growing need for new versatile joining technologies in order to overcome
    these challenges and to be able to react to changing process parameters and boundary
    conditions. Joining without an auxiliary element using pin structures formed directly
    from the sheet metal plane is one approach to meet these challenges. These pin
    structures are then joined by direct pressing into the joining partner. This is
    possible with a variety of material combinations, but is advantageous with regard
    to continuous fibre-reinforced thermoplastic composites (CFRTP), as the fibres
    do not have to be cut when joining CFRTP using pin structures. In this paper,
    the formability of pin structures made of a dual-phase steel DP600 (HCT590X +
    Z) is investigated. The extruded pin structures are joined by direct pin pressing
    with an EN AW-6014 to form tensile shear specimens. Different joining strategies
    are investigated to compare their influence on the joint strength. The results
    have shown that it is feasible to form suitable pins from a DP600 dual-phase steel
    to produce reliable connections with an aluminium sheet joined by direct pin pressing. '
author:
- first_name: D.
  full_name: Römisch, D.
  last_name: Römisch
- first_name: M.
  full_name: Kraus, M.
  last_name: Kraus
- first_name: M.
  full_name: Merklein, M.
  last_name: Merklein
citation:
  ama: Römisch D, Kraus M, Merklein M. Investigation of Different Joining by Forming
    Strategies when Connecting Different Metals without Auxiliary Elements. <i>Key
    Engineering Materials</i>. 2021;883:19-26. doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">10.4028/www.scientific.net/kem.883.19</a>
  apa: Römisch, D., Kraus, M., &#38; Merklein, M. (2021). Investigation of Different
    Joining by Forming Strategies when Connecting Different Metals without Auxiliary
    Elements. <i>Key Engineering Materials</i>, <i>883</i>, 19–26. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">https://doi.org/10.4028/www.scientific.net/kem.883.19</a>
  bibtex: '@article{Römisch_Kraus_Merklein_2021, title={Investigation of Different
    Joining by Forming Strategies when Connecting Different Metals without Auxiliary
    Elements}, volume={883}, DOI={<a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">10.4028/www.scientific.net/kem.883.19</a>},
    journal={Key Engineering Materials}, author={Römisch, D. and Kraus, M. and Merklein,
    M.}, year={2021}, pages={19–26} }'
  chicago: 'Römisch, D., M. Kraus, and M. Merklein. “Investigation of Different Joining
    by Forming Strategies When Connecting Different Metals without Auxiliary Elements.”
    <i>Key Engineering Materials</i> 883 (2021): 19–26. <a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">https://doi.org/10.4028/www.scientific.net/kem.883.19</a>.'
  ieee: 'D. Römisch, M. Kraus, and M. Merklein, “Investigation of Different Joining
    by Forming Strategies when Connecting Different Metals without Auxiliary Elements,”
    <i>Key Engineering Materials</i>, vol. 883, pp. 19–26, 2021, doi: <a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">10.4028/www.scientific.net/kem.883.19</a>.'
  mla: Römisch, D., et al. “Investigation of Different Joining by Forming Strategies
    When Connecting Different Metals without Auxiliary Elements.” <i>Key Engineering
    Materials</i>, vol. 883, 2021, pp. 19–26, doi:<a href="https://doi.org/10.4028/www.scientific.net/kem.883.19">10.4028/www.scientific.net/kem.883.19</a>.
  short: D. Römisch, M. Kraus, M. Merklein, Key Engineering Materials 883 (2021) 19–26.
date_created: 2022-03-29T08:45:16Z
date_updated: 2023-01-02T11:47:47Z
department:
- _id: '630'
doi: 10.4028/www.scientific.net/kem.883.19
intvolume: '       883'
language:
- iso: eng
page: 19-26
project:
- _id: '130'
  grant_number: '418701707'
  name: 'TRR 285: TRR 285'
- _id: '133'
  name: 'TRR 285 - C: TRR 285 - Project Area C'
- _id: '145'
  name: 'TRR 285 – C01: TRR 285 - Subproject C01'
publication: Key Engineering Materials
status: public
title: Investigation of Different Joining by Forming Strategies when Connecting Different
  Metals without Auxiliary Elements
type: journal_article
user_id: '14931'
volume: 883
year: '2021'
...
