---
_id: '65032'
abstract:
- lang: eng
  text: "Despite its status as a key enabling technology, the adoption of 5G in\r\nindustry
    remains limited, mainly due to a lack of expertise, which can be addressed\r\nby
    incorporating 5G training into vocational schools. Since Augmented Reality\r\n(AR)
    faces similar challenges, it is used as the 5G application. This research aims\r\nto
    determine the extent to which a learning unit using 5G and AR for collaborative\r\nwork
    can increase the intention to use these technologies in the vocational setting\r\nand
    gathers the factors that make up 5G acceptance. It is based on the Technology
    Acceptance Model 2 (TAM2). The sample includes 23 industrial mechanics\r\nstudents
    who participated in the developed learning unit. All items are scored on\r\nseven-tiered
    Likert scales (0 “totally disagree”; 6 “totally agree”).\r\nThe results showed
    a non-significant change in behavioural intention to use\r\n5G, with a mean of
    4.95 (SD: 1.18) for the pre-test and 4.43 (SD: 1.68) for the posttest. The change
    in intention to use AR did not change significantly either, from\r\n3.12 (SD:
    1.38) at pre-test to 3.37 (SD: 1.16) at post-test. The factors Perceived\r\nUsefulness,
    Image, and Relevance had the lowest mean scores, indicating areas for\r\ntargeted
    improvement. The significant change in Output Quality ratings is likely to\r\nreflect
    initial overestimation by students. The difference in Behavioural Intentions\r\nbetween
    5G and AR suggests that AR may not be an effective technology for\r\nincreasing
    5G adoption in educational contexts. One recommendation is to address\r\n5G in
    the learning unit not only indirectly."
author:
- first_name: Johannes
  full_name: Schäfers, Johannes
  id: '68949'
  last_name: Schäfers
- first_name: Katrin
  full_name: Temmen, Katrin
  id: '30086'
  last_name: Temmen
citation:
  ama: 'Schäfers J, Temmen K. The Influence of an Immersive-Collaborative Learning
    Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students.
    In: Auer ME, Rüütmann T, eds. <i>Proceedings of the 27th International Conference
    on Interactive Collaborative Learning (ICL2024), Volume 4</i>. Vol 1281. Lecture
    Notes in Networks and Systems. Springer Nature Switzerland; 2025:84 – 91. doi:<a
    href="https://doi.org/10.1007/978-3-031-83520-9_8">10.1007/978-3-031-83520-9_8</a>'
  apa: Schäfers, J., &#38; Temmen, K. (2025). The Influence of an Immersive-Collaborative
    Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic
    Students. In M. E. Auer &#38; T. Rüütmann (Eds.), <i>Proceedings of the 27th International
    Conference on Interactive Collaborative Learning (ICL2024), Volume 4</i> (Vol.
    1281, pp. 84 – 91). Springer Nature Switzerland. <a href="https://doi.org/10.1007/978-3-031-83520-9_8">https://doi.org/10.1007/978-3-031-83520-9_8</a>
  bibtex: '@inbook{Schäfers_Temmen_2025, place={Cham}, series={Lecture Notes in Networks
    and Systems}, title={The Influence of an Immersive-Collaborative Learning Unit
    on the Technology Acceptance of 5G and AR of Industrial Mechanic Students}, volume={1281},
    DOI={<a href="https://doi.org/10.1007/978-3-031-83520-9_8">10.1007/978-3-031-83520-9_8</a>},
    booktitle={Proceedings of the 27th International Conference on Interactive Collaborative
    Learning (ICL2024), Volume 4}, publisher={Springer Nature Switzerland}, author={Schäfers,
    Johannes and Temmen, Katrin}, editor={Auer, Michael E. and Rüütmann, Tiia}, year={2025},
    pages={84 – 91}, collection={Lecture Notes in Networks and Systems} }'
  chicago: 'Schäfers, Johannes, and Katrin Temmen. “The Influence of an Immersive-Collaborative
    Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic
    Students.” In <i>Proceedings of the 27th International Conference on Interactive
    Collaborative Learning (ICL2024), Volume 4</i>, edited by Michael E. Auer and
    Tiia Rüütmann, 1281:84 – 91. Lecture Notes in Networks and Systems. Cham: Springer
    Nature Switzerland, 2025. <a href="https://doi.org/10.1007/978-3-031-83520-9_8">https://doi.org/10.1007/978-3-031-83520-9_8</a>.'
  ieee: 'J. Schäfers and K. Temmen, “The Influence of an Immersive-Collaborative Learning
    Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic Students,”
    in <i>Proceedings of the 27th International Conference on Interactive Collaborative
    Learning (ICL2024), Volume 4</i>, vol. 1281, M. E. Auer and T. Rüütmann, Eds.
    Cham: Springer Nature Switzerland, 2025, pp. 84 – 91.'
  mla: Schäfers, Johannes, and Katrin Temmen. “The Influence of an Immersive-Collaborative
    Learning Unit on the Technology Acceptance of 5G and AR of Industrial Mechanic
    Students.” <i>Proceedings of the 27th International Conference on Interactive
    Collaborative Learning (ICL2024), Volume 4</i>, edited by Michael E. Auer and
    Tiia Rüütmann, vol. 1281, Springer Nature Switzerland, 2025, pp. 84 – 91, doi:<a
    href="https://doi.org/10.1007/978-3-031-83520-9_8">10.1007/978-3-031-83520-9_8</a>.
  short: 'J. Schäfers, K. Temmen, in: M.E. Auer, T. Rüütmann (Eds.), Proceedings of
    the 27th International Conference on Interactive Collaborative Learning (ICL2024),
    Volume 4, Springer Nature Switzerland, Cham, 2025, pp. 84 – 91.'
conference:
  end_date: 2024-09-27
  location: Tallinn
  name: International Conference on Interactive Collaborative Learning
  start_date: 2024-09-24
date_created: 2026-03-17T13:39:04Z
date_updated: 2026-03-17T13:49:57Z
doi: 10.1007/978-3-031-83520-9_8
editor:
- first_name: Michael E.
  full_name: Auer, Michael E.
  last_name: Auer
- first_name: Tiia
  full_name: Rüütmann, Tiia
  last_name: Rüütmann
intvolume: '      1281'
keyword:
- 5G
- Key Technology
- TAM · Augmented Reality
- VET
language:
- iso: eng
main_file_link:
- url: https://link.springer.com/chapter/10.1007/978-3-031-83520-9_8
page: 84 – 91
place: Cham
publication: Proceedings of the 27th International Conference on Interactive Collaborative
  Learning (ICL2024), Volume 4
publication_identifier:
  isbn:
  - '9783031835193'
  - '9783031835209'
  issn:
  - 2367-3370
  - 2367-3389
publication_status: published
publisher: Springer Nature Switzerland
series_title: Lecture Notes in Networks and Systems
status: public
title: The Influence of an Immersive-Collaborative Learning Unit on the Technology
  Acceptance of 5G and AR of Industrial Mechanic Students
type: book_chapter
user_id: '68949'
volume: 1281
year: '2025'
...
---
_id: '29763'
abstract:
- lang: eng
  text: "Modern-day communication has become more and more digital. While this comes
    with many advantages such as a more efficient economy, it has also created more
    and more opportunities for various adversaries to manipulate communication or
    eavesdrop on it. The Snowden revelations in 2013 further highlighted the seriousness
    of these threats. To protect the communication of people, companies, and states
    from such threats, we require cryptography with strong security guarantees.\r\nDifferent
    applications may require different security properties from cryptographic schemes.
    For most applications, however, so-called adaptive security is considered a reasonable
    minimal requirement of security. Cryptographic schemes with adaptive security
    remain secure in the presence of an adversary that can corrupt communication partners
    to respond to messages of the adversaries choice, while the adversary may choose
    the messages based on previously observed interactions.\r\nWhile cryptography
    is associated the most with encryption, this is only one of many primitives that
    are essential for the security of digital interactions. This thesis presents novel
    identity-based encryption (IBE) schemes and verifiable random functions (VRFs)
    that achieve adaptive security as outlined above. Moreover, the cryptographic
    schemes presented in this thesis are proven secure in the standard model. That
    is without making use of idealized models like the random oracle model."
author:
- first_name: David
  full_name: Niehues, David
  id: '36113'
  last_name: Niehues
citation:
  ama: Niehues D. <i>More Efficient Techniques for Adaptively-Secure Cryptography</i>.;
    2022. doi:<a href="https://doi.org/10.25926/rdtq-jw45">10.25926/rdtq-jw45</a>
  apa: Niehues, D. (2022). <i>More Efficient Techniques for Adaptively-Secure Cryptography</i>.
    <a href="https://doi.org/10.25926/rdtq-jw45">https://doi.org/10.25926/rdtq-jw45</a>
  bibtex: '@book{Niehues_2022, title={More Efficient Techniques for Adaptively-Secure
    Cryptography}, DOI={<a href="https://doi.org/10.25926/rdtq-jw45">10.25926/rdtq-jw45</a>},
    author={Niehues, David}, year={2022} }'
  chicago: Niehues, David. <i>More Efficient Techniques for Adaptively-Secure Cryptography</i>,
    2022. <a href="https://doi.org/10.25926/rdtq-jw45">https://doi.org/10.25926/rdtq-jw45</a>.
  ieee: D. Niehues, <i>More Efficient Techniques for Adaptively-Secure Cryptography</i>.
    2022.
  mla: Niehues, David. <i>More Efficient Techniques for Adaptively-Secure Cryptography</i>.
    2022, doi:<a href="https://doi.org/10.25926/rdtq-jw45">10.25926/rdtq-jw45</a>.
  short: D. Niehues, More Efficient Techniques for Adaptively-Secure Cryptography,
    2022.
date_created: 2022-02-07T13:29:07Z
date_updated: 2022-02-07T13:32:28Z
ddc:
- '000'
department:
- _id: '558'
doi: 10.25926/rdtq-jw45
file:
- access_level: closed
  content_type: application/pdf
  creator: davnie
  date_created: 2022-02-07T13:26:05Z
  date_updated: 2022-02-07T13:26:05Z
  file_id: '29764'
  file_name: de2107.pdf
  file_size: 1542089
  relation: main_file
  success: 1
file_date_updated: 2022-02-07T13:26:05Z
has_accepted_license: '1'
keyword:
- public-key cryptography
- lattices
- pairings
- verifiable random functions
- identity-based encryption
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://elpub.bib.uni-wuppertal.de/servlets/DerivateServlet/Derivate-14686/de2107.pdf
oa: '1'
project:
- _id: '1'
  name: 'SFB 901: SFB 901'
- _id: '4'
  name: 'SFB 901 - C: SFB 901 - Project Area C'
- _id: '13'
  name: 'SFB 901 - C1: SFB 901 - Subproject C1'
publication_status: published
status: public
supervisor:
- first_name: Tibor
  full_name: Jager, Tibor
  id: '64669'
  last_name: Jager
- first_name: Anja
  full_name: Lehmann, Anja
  last_name: Lehmann
title: More Efficient Techniques for Adaptively-Secure Cryptography
type: dissertation
user_id: '36113'
year: '2022'
...
---
_id: '40987'
abstract:
- lang: eng
  text: <The replacement of noble metal catalysts by abundant iron as an active compound
    in CO oxidation is of ecologic and economic interest. However, improvement of
    their catalytic performance to the same level as state-of-the-art noble metal
    catalysts requires an in depth understanding of their working principle on an
    atomic level. As a contribution to this aim, a series of iron oxide catalysts
    with varying Fe loadings from 1 to 20 wt% immobilized on a γ-Al2O3 support is
    presented here, and a multidimensional structure–activity correlation is established.
    The CO oxidation activity is correlated to structural details obtained by various
    spectroscopic, diffraction, and microscopic methods, such as PXRD, PDF analysis,
    DRUVS, Mössbauer spectroscopy, STEM-EDX, and XAS. Low Fe loadings lead to less
    agglomerated but high percentual amounts of isolated, tetrahedrally coordinated
    iron oxide species, while the absolute amount of isolated species reaches its
    maximum at high Fe loadings. Consequently, the highest CO oxidation activity in
    terms of turnover frequencies can be correlated to small, finely dispersed iron
    oxide species with a large amount of tetrahedrally oxygen coordinated iron sites,
    while the overall amount of isolated iron oxide species correlates with a lower
    light-off temperature.
article_number: '675'
author:
- first_name: Steffen
  full_name: Schlicher, Steffen
  last_name: Schlicher
- first_name: Nils
  full_name: Prinz, Nils
  last_name: Prinz
- first_name: Julius
  full_name: Bürger, Julius
  id: '46952'
  last_name: Bürger
- first_name: Andreas
  full_name: Omlor, Andreas
  last_name: Omlor
- first_name: Christian
  full_name: Singer, Christian
  last_name: Singer
- first_name: Mirijam
  full_name: Zobel, Mirijam
  last_name: Zobel
- first_name: Roland
  full_name: Schoch, Roland
  id: '48467'
  last_name: Schoch
  orcid: 0000-0003-2061-7289
- first_name: Jörg K. N.
  full_name: Lindner, Jörg K. N.
  id: '20797'
  last_name: Lindner
- first_name: Volker
  full_name: Schünemann, Volker
  last_name: Schünemann
- first_name: Sven
  full_name: Kureti, Sven
  last_name: Kureti
- first_name: Matthias
  full_name: Bauer, Matthias
  id: '47241'
  last_name: Bauer
  orcid: 0000-0002-9294-6076
citation:
  ama: Schlicher S, Prinz N, Bürger J, et al. Quality or Quantity? How Structural
    Parameters Affect Catalytic Activity of Iron Oxides for CO Oxidation. <i>Catalysts</i>.
    2022;12(6). doi:<a href="https://doi.org/10.3390/catal12060675">10.3390/catal12060675</a>
  apa: Schlicher, S., Prinz, N., Bürger, J., Omlor, A., Singer, C., Zobel, M., Schoch,
    R., Lindner, J. K. N., Schünemann, V., Kureti, S., &#38; Bauer, M. (2022). Quality
    or Quantity? How Structural Parameters Affect Catalytic Activity of Iron Oxides
    for CO Oxidation. <i>Catalysts</i>, <i>12</i>(6), Article 675. <a href="https://doi.org/10.3390/catal12060675">https://doi.org/10.3390/catal12060675</a>
  bibtex: '@article{Schlicher_Prinz_Bürger_Omlor_Singer_Zobel_Schoch_Lindner_Schünemann_Kureti_et
    al._2022, title={Quality or Quantity? How Structural Parameters Affect Catalytic
    Activity of Iron Oxides for CO Oxidation}, volume={12}, DOI={<a href="https://doi.org/10.3390/catal12060675">10.3390/catal12060675</a>},
    number={6675}, journal={Catalysts}, publisher={MDPI AG}, author={Schlicher, Steffen
    and Prinz, Nils and Bürger, Julius and Omlor, Andreas and Singer, Christian and
    Zobel, Mirijam and Schoch, Roland and Lindner, Jörg K. N. and Schünemann, Volker
    and Kureti, Sven and et al.}, year={2022} }'
  chicago: Schlicher, Steffen, Nils Prinz, Julius Bürger, Andreas Omlor, Christian
    Singer, Mirijam Zobel, Roland Schoch, et al. “Quality or Quantity? How Structural
    Parameters Affect Catalytic Activity of Iron Oxides for CO Oxidation.” <i>Catalysts</i>
    12, no. 6 (2022). <a href="https://doi.org/10.3390/catal12060675">https://doi.org/10.3390/catal12060675</a>.
  ieee: 'S. Schlicher <i>et al.</i>, “Quality or Quantity? How Structural Parameters
    Affect Catalytic Activity of Iron Oxides for CO Oxidation,” <i>Catalysts</i>,
    vol. 12, no. 6, Art. no. 675, 2022, doi: <a href="https://doi.org/10.3390/catal12060675">10.3390/catal12060675</a>.'
  mla: Schlicher, Steffen, et al. “Quality or Quantity? How Structural Parameters
    Affect Catalytic Activity of Iron Oxides for CO Oxidation.” <i>Catalysts</i>,
    vol. 12, no. 6, 675, MDPI AG, 2022, doi:<a href="https://doi.org/10.3390/catal12060675">10.3390/catal12060675</a>.
  short: S. Schlicher, N. Prinz, J. Bürger, A. Omlor, C. Singer, M. Zobel, R. Schoch,
    J.K.N. Lindner, V. Schünemann, S. Kureti, M. Bauer, Catalysts 12 (2022).
date_created: 2023-01-30T16:24:41Z
date_updated: 2023-08-17T06:57:31Z
department:
- _id: '35'
- _id: '306'
- _id: '15'
doi: 10.3390/catal12060675
intvolume: '        12'
issue: '6'
keyword:
- Physical and Theoretical Chemistry
- Catalysis
- General Environmental Science
- Key
language:
- iso: eng
publication: Catalysts
publication_identifier:
  issn:
  - 2073-4344
publication_status: published
publisher: MDPI AG
status: public
title: Quality or Quantity? How Structural Parameters Affect Catalytic Activity of
  Iron Oxides for CO Oxidation
type: journal_article
user_id: '14931'
volume: 12
year: '2022'
...
---
_id: '39027'
abstract:
- lang: eng
  text: We experimentally investigate the generation of continuous-wave optical squeezing
    from a titanium-indiffused lithium niobate waveguide resonator at low and high
    frequencies. The device promises integration with different platform chips for
    more complex optical systems.
author:
- first_name: Renato R.
  full_name: Domeneguetti, Renato R.
  last_name: Domeneguetti
- first_name: Hauke
  full_name: Conradi, Hauke
  last_name: Conradi
- first_name: Moritz
  full_name: Kleinert, Moritz
  last_name: Kleinert
- first_name: Christian
  full_name: Kießler, Christian
  id: '44252'
  last_name: Kießler
- first_name: Michael
  full_name: Stefszky, Michael
  id: '42777'
  last_name: Stefszky
- first_name: Harald
  full_name: Herrmann, Harald
  id: '216'
  last_name: Herrmann
- first_name: Christine
  full_name: Silberhorn, Christine
  id: '26263'
  last_name: Silberhorn
- first_name: Ulrik L.
  full_name: Andersen, Ulrik L.
  last_name: Andersen
- first_name: Jonas Schou
  full_name: Neergaard-Nielsen, Jonas Schou
  last_name: Neergaard-Nielsen
- first_name: Tobias
  full_name: Gehring, Tobias
  last_name: Gehring
citation:
  ama: 'Domeneguetti RR, Conradi H, Kleinert M, et al. Nonlinear waveguides for integrated
    quantum light source. In: <i>2021 Conference on Lasers and Electro-Optics Europe
    and European Quantum Electronics Conference</i>. Optica Publishing Group; 2021:eb_4_1.'
  apa: Domeneguetti, R. R., Conradi, H., Kleinert, M., Kießler, C., Stefszky, M.,
    Herrmann, H., Silberhorn, C., Andersen, U. L., Neergaard-Nielsen, J. S., &#38;
    Gehring, T. (2021). Nonlinear waveguides for integrated quantum light source.
    <i>2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
    Conference</i>, eb_4_1.
  bibtex: '@inproceedings{Domeneguetti_Conradi_Kleinert_Kießler_Stefszky_Herrmann_Silberhorn_Andersen_Neergaard-Nielsen_Gehring_2021,
    title={Nonlinear waveguides for integrated quantum light source}, booktitle={2021
    Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
    Conference}, publisher={Optica Publishing Group}, author={Domeneguetti, Renato
    R. and Conradi, Hauke and Kleinert, Moritz and Kießler, Christian and Stefszky,
    Michael and Herrmann, Harald and Silberhorn, Christine and Andersen, Ulrik L.
    and Neergaard-Nielsen, Jonas Schou and Gehring, Tobias}, year={2021}, pages={eb_4_1}
    }'
  chicago: Domeneguetti, Renato R., Hauke Conradi, Moritz Kleinert, Christian Kießler,
    Michael Stefszky, Harald Herrmann, Christine Silberhorn, Ulrik L. Andersen, Jonas
    Schou Neergaard-Nielsen, and Tobias Gehring. “Nonlinear Waveguides for Integrated
    Quantum Light Source.” In <i>2021 Conference on Lasers and Electro-Optics Europe
    and European Quantum Electronics Conference</i>, eb_4_1. Optica Publishing Group,
    2021.
  ieee: R. R. Domeneguetti <i>et al.</i>, “Nonlinear waveguides for integrated quantum
    light source,” in <i>2021 Conference on Lasers and Electro-Optics Europe and European
    Quantum Electronics Conference</i>, 2021, p. eb_4_1.
  mla: Domeneguetti, Renato R., et al. “Nonlinear Waveguides for Integrated Quantum
    Light Source.” <i>2021 Conference on Lasers and Electro-Optics Europe and European
    Quantum Electronics Conference</i>, Optica Publishing Group, 2021, p. eb_4_1.
  short: 'R.R. Domeneguetti, H. Conradi, M. Kleinert, C. Kießler, M. Stefszky, H.
    Herrmann, C. Silberhorn, U.L. Andersen, J.S. Neergaard-Nielsen, T. Gehring, in:
    2021 Conference on Lasers and Electro-Optics Europe and European Quantum Electronics
    Conference, Optica Publishing Group, 2021, p. eb_4_1.'
date_created: 2023-01-24T08:06:33Z
date_updated: 2026-01-16T10:21:27Z
department:
- _id: '15'
- _id: '288'
keyword:
- Optical systems
- Polymer waveguides
- Quantum key distribution
- Quantum light sources
- Squeezed states
- Waveguides
language:
- iso: eng
page: eb_4_1
publication: 2021 Conference on Lasers and Electro-Optics Europe and European Quantum
  Electronics Conference
publisher: Optica Publishing Group
status: public
title: Nonlinear waveguides for integrated quantum light source
type: conference
user_id: '42777'
year: '2021'
...