---
_id: '63512'
abstract:
- lang: eng
  text: "The state of the art shows that PBF-LB/M offers great potential for pressure-loaded
    parts, with significant weight reductions and simultaneous optimization of flow
    resistance. This study is aimed at applying existing calculation methods for pressure-loaded
    parts to additively manufactured pipe structures, considering the two materials
    EN AC-43000 (3.2381, AlSi10Mg) and AISI 316L (1.4404, X2CrNiMo17-12-2). For this
    purpose, systematic tensile tests are carried out for both materials. In addition,
    a statistical evaluation is performed to determine the design-relevant strength
    characteristics with a survival probability Ps of 97.5 % for both materials in
    the as-built and heat-treated condition.\r\nPipe specimens are manufactured, half
    of which are heat treated, geometrically measured and then subjected to a burst
    pressure test to experimentally determine the failure-critical internal pressure.
    These results are compared with calculated burst pressures. The calculations are
    based on the application-relevant methods identified in this study, considering
    the strength values determined for the respective material condition. This comparison
    is used to assess the suitability of the calculation methods for additively manufactured
    pipe structures, based on the materials investigated."
article_number: '105753'
author:
- first_name: Thorsten
  full_name: Koers, Thorsten
  id: '38077'
  last_name: Koers
- first_name: Balázs
  full_name: Magyar, Balázs
  id: '97759'
  last_name: Magyar
- first_name: Christian
  full_name: Bödger, Christian
  id: '93904'
  last_name: Bödger
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Koers T, Magyar B, Bödger C, Tröster T. Analytical and experimental determination
    of the failure-critical pressure of pipe structures manufactured by PBF-LB/M.
    <i>International Journal of Pressure Vessels and Piping</i>. Published online
    2026. doi:<a href="https://doi.org/10.1016/j.ijpvp.2026.105753">10.1016/j.ijpvp.2026.105753</a>
  apa: Koers, T., Magyar, B., Bödger, C., &#38; Tröster, T. (2026). Analytical and
    experimental determination of the failure-critical pressure of pipe structures
    manufactured by PBF-LB/M. <i>International Journal of Pressure Vessels and Piping</i>,
    Article 105753. <a href="https://doi.org/10.1016/j.ijpvp.2026.105753">https://doi.org/10.1016/j.ijpvp.2026.105753</a>
  bibtex: '@article{Koers_Magyar_Bödger_Tröster_2026, title={Analytical and experimental
    determination of the failure-critical pressure of pipe structures manufactured
    by PBF-LB/M}, DOI={<a href="https://doi.org/10.1016/j.ijpvp.2026.105753">10.1016/j.ijpvp.2026.105753</a>},
    number={105753}, journal={International Journal of Pressure Vessels and Piping},
    publisher={Elsevier BV}, author={Koers, Thorsten and Magyar, Balázs and Bödger,
    Christian and Tröster, Thomas}, year={2026} }'
  chicago: Koers, Thorsten, Balázs Magyar, Christian Bödger, and Thomas Tröster. “Analytical
    and Experimental Determination of the Failure-Critical Pressure of Pipe Structures
    Manufactured by PBF-LB/M.” <i>International Journal of Pressure Vessels and Piping</i>,
    2026. <a href="https://doi.org/10.1016/j.ijpvp.2026.105753">https://doi.org/10.1016/j.ijpvp.2026.105753</a>.
  ieee: 'T. Koers, B. Magyar, C. Bödger, and T. Tröster, “Analytical and experimental
    determination of the failure-critical pressure of pipe structures manufactured
    by PBF-LB/M,” <i>International Journal of Pressure Vessels and Piping</i>, Art.
    no. 105753, 2026, doi: <a href="https://doi.org/10.1016/j.ijpvp.2026.105753">10.1016/j.ijpvp.2026.105753</a>.'
  mla: Koers, Thorsten, et al. “Analytical and Experimental Determination of the Failure-Critical
    Pressure of Pipe Structures Manufactured by PBF-LB/M.” <i>International Journal
    of Pressure Vessels and Piping</i>, 105753, Elsevier BV, 2026, doi:<a href="https://doi.org/10.1016/j.ijpvp.2026.105753">10.1016/j.ijpvp.2026.105753</a>.
  short: T. Koers, B. Magyar, C. Bödger, T. Tröster, International Journal of Pressure
    Vessels and Piping (2026).
date_created: 2026-01-07T08:39:04Z
date_updated: 2026-01-14T11:56:01Z
department:
- _id: '146'
- _id: '9'
- _id: '624'
- _id: '149'
- _id: '321'
doi: 10.1016/j.ijpvp.2026.105753
keyword:
- PBF-LB/M
- Pipe structures
- Strength assessment
- Burst pressure test
- Geometrical deviations
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.1016/j.ijpvp.2026.105753
oa: '1'
publication: International Journal of Pressure Vessels and Piping
publication_identifier:
  issn:
  - 0308-0161
publication_status: published
publisher: Elsevier BV
quality_controlled: '1'
status: public
title: Analytical and experimental determination of the failure-critical pressure
  of pipe structures manufactured by PBF-LB/M
type: journal_article
user_id: '97759'
year: '2026'
...
---
_id: '63614'
author:
- first_name: Andreas
  full_name: Marchetti, Andreas
  id: '41561'
  last_name: Marchetti
citation:
  ama: Marchetti A. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends</i>. Konrad-Adenauer-Stiftung; 2026.
  apa: Marchetti, A. (2026). <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends</i>. Konrad-Adenauer-Stiftung.
  bibtex: '@book{Marchetti_2026, place={Paris}, title={Moderne Städte- und Gemeindepartnerschaften.
    Fördermöglichkeiten und Praxistrends}, publisher={Konrad-Adenauer-Stiftung}, author={Marchetti,
    Andreas}, year={2026} }'
  chicago: 'Marchetti, Andreas. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends</i>. Paris: Konrad-Adenauer-Stiftung, 2026.'
  ieee: 'A. Marchetti, <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends</i>. Paris: Konrad-Adenauer-Stiftung, 2026.'
  mla: Marchetti, Andreas. <i>Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends</i>. Konrad-Adenauer-Stiftung, 2026.
  short: A. Marchetti, Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten
    und Praxistrends, Konrad-Adenauer-Stiftung, Paris, 2026.
date_created: 2026-01-15T00:37:11Z
date_updated: 2026-01-15T00:38:59Z
department:
- _id: '16'
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.kas.de/de/web/frankreich/publikationen/einzeltitel/-/content/moderne-staedte-und-gemeindepartnerschaften-foerdermoeglichkeiten-und-praxistrends
oa: '1'
page: '70'
place: Paris
publisher: Konrad-Adenauer-Stiftung
status: public
title: Moderne Städte- und Gemeindepartnerschaften. Fördermöglichkeiten und Praxistrends
type: book
user_id: '41561'
year: '2026'
...
---
_id: '63661'
author:
- first_name: Sebastian
  full_name: Althoff, Sebastian
  id: '89772'
  last_name: Althoff
- first_name: Ragna
  full_name: Verhoeven, Ragna
  last_name: Verhoeven
citation:
  ama: 'Althoff S, Verhoeven R. <i>Tagungsbericht: Von Widerständigen Verweigerungen
    Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten</i>.;
    2026.'
  apa: 'Althoff, S., &#38; Verhoeven, R. (2026). <i>Tagungsbericht: Von widerständigen
    Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie
    zwischen (Un)Sichtbarkeiten</i>.'
  bibtex: '@book{Althoff_Verhoeven_2026, place={theorieblog.de}, title={Tagungsbericht:
    Von widerständigen Verweigerungen und vom (Über-)Leben in feindlichen Umgebungen.
    Politische Theorie zwischen (Un)Sichtbarkeiten}, author={Althoff, Sebastian and
    Verhoeven, Ragna}, year={2026} }'
  chicago: 'Althoff, Sebastian, and Ragna Verhoeven. <i>Tagungsbericht: Von Widerständigen
    Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie
    Zwischen (Un)Sichtbarkeiten</i>. theorieblog.de, 2026.'
  ieee: 'S. Althoff and R. Verhoeven, <i>Tagungsbericht: Von widerständigen Verweigerungen
    und vom (Über-)Leben in feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten</i>.
    theorieblog.de, 2026.'
  mla: 'Althoff, Sebastian, and Ragna Verhoeven. <i>Tagungsbericht: Von Widerständigen
    Verweigerungen Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie
    Zwischen (Un)Sichtbarkeiten</i>. 2026.'
  short: 'S. Althoff, R. Verhoeven, Tagungsbericht: Von Widerständigen Verweigerungen
    Und Vom (Über-)Leben in Feindlichen Umgebungen. Politische Theorie Zwischen (Un)Sichtbarkeiten,
    theorieblog.de, 2026.'
date_created: 2026-01-20T08:49:03Z
date_updated: 2026-01-20T08:49:18Z
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.theorieblog.de/index.php/2026/01/tagungsbericht-von-widerstaendigen-verweigerungen-und-vom-ueber-leben-in-feindlichen-umgebungen-politische-theorie-zwischen-unsichtbarkeiten/
oa: '1'
place: theorieblog.de
status: public
title: 'Tagungsbericht: Von widerständigen Verweigerungen und vom (Über-)Leben in
  feindlichen Umgebungen. Politische Theorie zwischen (Un)Sichtbarkeiten'
type: report
user_id: '89772'
year: '2026'
...
---
_id: '63674'
abstract:
- lang: ger
  text: 'Der Beitrag konzentriert sich am Beispiel des IVAR Planers auf die virtuellen
    Einrichtungstools des Einrichtungskonzerns IKEA und fragt danach, welche Politiken
    des Wohnens und Einrichtens sich aus der Medialität dieser virtuellen Umgebungen
    ergeben. Anhand von Stefan Riegers Überlegungen zum virtuellen Testen werden diese
    Planungstools einerseits als auf Dauer gestellte Testumgebungen verstanden, die
    es den Kund*innen erlauben, das eigene Zuhause – ökologisch wie ökonomisch niederschwellig
    – virtuell immer wieder einzurichten. Andererseits werden die Anrufungen zur Kreativität,
    die ständig an die Kund*innen gerichtet werden, in die Überlegungen mit einbezogen,
    weil sich daraus eine paradoxe Konstellation ergibt: Zum einen sollen so die virtuellen
    Einrichtungstools kreatives Potenzial und eigenständige Gestaltung aufrufen; zum
    anderen werden diese Aufrufe aber durch die Medialität der Tools eingehegt und
    damit zu einem Steuerungsregime.'
- lang: eng
  text: 'Using the example of the IVAR planner, the article focuses on the virtual
    furnishing tools of the furniture company IKEA and asks which policies of living
    and furnishing result from the mediality of these virtual environments. Based
    on Stefan Rieger’s reflections on virtual testing, these planning tools are understood
    on the one hand as permanent test environments that allow customers to furnish
    their own homes virtually again and again – in an ecologically and economically
    low-threshold way. On the other hand, the appeals for creativity that are constantly
    made to customers are included in the considerations because this results in a
    paradoxical constellation: On the one hand, the virtual furnishing tools are intended
    to invoke creative potential and independent design; on the other hand, however,
    these invocations are contained by the mediality of the tools and thus become
    a control regime.'
author:
- first_name: Jakob
  full_name: Cyrkel, Jakob
  id: '25121'
  last_name: Cyrkel
  orcid: 0009-0006-7737-0845
citation:
  ama: 'Cyrkel J. »Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem
    IVAR Planer. In: Bartz C, Cyrkel J, Hüttemann F, Miggelbrink M, eds. <i>ComputerWohnen.
    Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>.
    Vol 66. Digitale Gesellschaft. transcript Verlag; 2026:317-331. doi:<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>'
  apa: Cyrkel, J. (2026). »Inspiration &#38; Planung« am Computer. Virtuelles Wohnen
    mit dem IVAR Planer. In C. Bartz, J. Cyrkel, F. Hüttemann, &#38; M. Miggelbrink
    (Eds.), <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen
    Arbeit und Assistenz</i> (Vol. 66, pp. 317–331). transcript Verlag. <a href="https://doi.org/10.14361/9783839471159">https://doi.org/10.14361/9783839471159</a>
  bibtex: '@inbook{Cyrkel_2026, place={Bielefeld}, series={Digitale Gesellschaft},
    title={»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit dem IVAR
    Planer}, volume={66}, DOI={<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>},
    booktitle={ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen
    Arbeit und Assistenz}, publisher={transcript Verlag}, author={Cyrkel, Jakob},
    editor={Bartz, Christina and Cyrkel, Jakob and Hüttemann, Felix and Miggelbrink,
    Monique}, year={2026}, pages={317–331}, collection={Digitale Gesellschaft} }'
  chicago: 'Cyrkel, Jakob. “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen
    mit dem IVAR Planer.” In <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen
    zwischen Arbeit und Assistenz</i>, edited by Christina Bartz, Jakob Cyrkel, Felix
    Hüttemann, and Monique Miggelbrink, 66:317–31. Digitale Gesellschaft. Bielefeld:
    transcript Verlag, 2026. <a href="https://doi.org/10.14361/9783839471159">https://doi.org/10.14361/9783839471159</a>.'
  ieee: 'J. Cyrkel, “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen mit
    dem IVAR Planer,” in <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen
    zwischen Arbeit und Assistenz</i>, vol. 66, C. Bartz, J. Cyrkel, F. Hüttemann,
    and M. Miggelbrink, Eds. Bielefeld: transcript Verlag, 2026, pp. 317–331.'
  mla: Cyrkel, Jakob. “»Inspiration &#38; Planung« am Computer. Virtuelles Wohnen
    mit dem IVAR Planer.” <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen
    zwischen Arbeit und Assistenz</i>, edited by Christina Bartz et al., vol. 66,
    transcript Verlag, 2026, pp. 317–31, doi:<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>.
  short: 'J. Cyrkel, in: C. Bartz, J. Cyrkel, F. Hüttemann, M. Miggelbrink (Eds.),
    ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit
    und Assistenz, transcript Verlag, Bielefeld, 2026, pp. 317–331.'
date_created: 2026-01-20T16:22:07Z
date_updated: 2026-01-20T16:53:49Z
department:
- _id: '11'
doi: 10.14361/9783839471159
editor:
- first_name: Christina
  full_name: Bartz, Christina
  last_name: Bartz
- first_name: Jakob
  full_name: Cyrkel, Jakob
  last_name: Cyrkel
- first_name: Felix
  full_name: Hüttemann, Felix
  last_name: Hüttemann
- first_name: Monique
  full_name: Miggelbrink, Monique
  last_name: Miggelbrink
intvolume: '        66'
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.transcript-verlag.de/978-3-8376-7115-5/computerwohnen/?number=978-3-8394-7115-9
oa: '1'
page: 317-331
place: Bielefeld
publication: ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen
  Arbeit und Assistenz
publication_identifier:
  eisbn:
  - 978-3-8394-7115-9
  isbn:
  - 978-3-8376-7115-5
publication_status: published
publisher: transcript Verlag
series_title: Digitale Gesellschaft
status: public
title: »Inspiration & Planung« am Computer. Virtuelles Wohnen mit dem IVAR Planer
type: book_chapter
user_id: '25121'
volume: 66
year: '2026'
...
---
_id: '63673'
abstract:
- lang: ger
  text: Unter welchen historischen Bedingungen und mit welchen Auswirkungen wurde
    der Computer zum Bestandteil des Wohnalltags? Und wie verhält es sich dabei mit
    Praktiken des Wohnens und Wohnungseinrichtens? Die Beiträger*innen werfen einen
    Blick auf die Computerisierung des Zuhauses und zeigen, wie sie sich vollzieht.
    Der Fokus ihrer Analysen liegt einerseits darauf, wie Arbeit und Assistenz das
    Wohnen im Hinblick auf den Computer prägen. Andererseits denken sie den Computer
    aus der Perspektive der Wohnumgebungen neu und geben so einen kompakten medienhistorischen
    Überblick über den Beginn des Smart Homes.
citation:
  ama: Bartz C, Cyrkel J, Hüttemann F, Miggelbrink M, eds. <i>ComputerWohnen. Zur
    Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>.
    Vol 66. transcript Verlag; 2026. doi:<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>
  apa: Bartz, C., Cyrkel, J., Hüttemann, F., &#38; Miggelbrink, M. (Eds.). (2026).
    <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit
    und Assistenz</i> (Vol. 66). transcript Verlag. <a href="https://doi.org/10.14361/9783839471159">https://doi.org/10.14361/9783839471159</a>
  bibtex: '@book{Bartz_Cyrkel_Hüttemann_Miggelbrink_2026, place={Bielefeld}, series={Digitale
    Gesellschaft}, title={ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen
    zwischen Arbeit und Assistenz}, volume={66}, DOI={<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>},
    publisher={transcript Verlag}, year={2026}, collection={Digitale Gesellschaft}
    }'
  chicago: 'Bartz, Christina, Jakob Cyrkel, Felix Hüttemann, and Monique Miggelbrink,
    eds. <i>ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen
    Arbeit und Assistenz</i>. Vol. 66. Digitale Gesellschaft. Bielefeld: transcript
    Verlag, 2026. <a href="https://doi.org/10.14361/9783839471159">https://doi.org/10.14361/9783839471159</a>.'
  ieee: 'C. Bartz, J. Cyrkel, F. Hüttemann, and M. Miggelbrink, Eds., <i>ComputerWohnen.
    Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz</i>,
    vol. 66. Bielefeld: transcript Verlag, 2026.'
  mla: Bartz, Christina, et al., editors. <i>ComputerWohnen. Zur Geschichte des Computers
    in Wohnumgebungen zwischen Arbeit und Assistenz</i>. transcript Verlag, 2026,
    doi:<a href="https://doi.org/10.14361/9783839471159">10.14361/9783839471159</a>.
  short: C. Bartz, J. Cyrkel, F. Hüttemann, M. Miggelbrink, eds., ComputerWohnen.
    Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit und Assistenz,
    transcript Verlag, Bielefeld, 2026.
date_created: 2026-01-20T16:07:44Z
date_updated: 2026-01-20T16:52:48Z
department:
- _id: '11'
doi: 10.14361/9783839471159
editor:
- first_name: Christina
  full_name: Bartz, Christina
  id: '21546'
  last_name: Bartz
- first_name: Jakob
  full_name: Cyrkel, Jakob
  id: '25121'
  last_name: Cyrkel
  orcid: 0009-0006-7737-0845
- first_name: Felix
  full_name: Hüttemann, Felix
  id: '85501'
  last_name: Hüttemann
- first_name: Monique
  full_name: Miggelbrink, Monique
  id: '5042'
  last_name: Miggelbrink
intvolume: '        66'
keyword:
- Mediengeschichte
- Digitale Medien
- Design
- Medien
- Medienwissenschaft
- Medienästhetik
- Mediensoziologie
- Medientheorie
- Medienphilosophie
- Architektur
- Technikgeschichte
- Technik
- Kultur
- Kulturwissenschaft
- Kulturgeschichte
- Kulturtheorie
- Popkultur
- Geschichte des 20. Jahrhunderts
- Geschichtswissenschaft
- Kultursoziologie
- Gender Studies
- Mode
- Klang
- Cultural Studies
- Informatik
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.transcript-verlag.de/978-3-8376-7115-5/computerwohnen/?number=978-3-8394-7115-9
oa: '1'
page: '336'
place: Bielefeld
publication_identifier:
  eisbn:
  - 978-3-8394-7115-9
  isbn:
  - 978-3-8376-7115-5
publication_status: published
publisher: transcript Verlag
series_title: Digitale Gesellschaft
status: public
title: ComputerWohnen. Zur Geschichte des Computers in Wohnumgebungen zwischen Arbeit
  und Assistenz
type: book_editor
user_id: '25121'
volume: 66
year: '2026'
...
---
_id: '63675'
abstract:
- lang: eng
  text: Cobalt spinel (Co3O4) catalysts are widely studied in scope of the electrocatalytic
    oxygen evolution reaction (OER), yet the role of interfacial structural transformation
    under anodic bias remains under debate. Here, we employ an operando approach,
    combining a fast electrochemical quartz crystal microbalance with dissipation
    monitoring (EQCM-D), electrochemical impedance spectroscopy (EIS), and Raman spectroscopy
    to investigate interfacial transformations of Co3O4 nanoparticle electrodes in
    alkaline electrolyte. We identify two distinct regimes during the anodic sweep
    prior to the macroscopic OER onset. At lower potentials, the catalyst interface
    remains mechanically rigid while reversibly associating several OH−/H2O species
    per oxidized cobalt site. At higher potentials, pronounced softening of the interface
    occurs alongside further uptake of electrolyte species. This indicates amorphization
    and a ‘swelling process’ beyond simple adsorption. Notably, an electrochemical
    conditioning treatment can suppress mass and compliance hysteresis without affecting
    OER activity, suggesting that most incorporated electrolyte species do not participate
    in the OER. EIS further reveals that OER intermediates form well below the apparent
    OER onset potential. These results advance our mechanistic understanding of interfacial
    transformations in cobalt-based OER catalysts and establish EQCM-D as a sensitive
    operando technique for probing electrocatalyst transformations.
article_number: e01104
author:
- first_name: Christian
  full_name: Leppin, Christian
  id: '117722'
  last_name: Leppin
- first_name: Carsten
  full_name: Placke‐Yan, Carsten
  last_name: Placke‐Yan
- first_name: Georg
  full_name: Bendt, Georg
  last_name: Bendt
- first_name: Sheila
  full_name: Hernandez, Sheila
  last_name: Hernandez
- first_name: Kristina
  full_name: Tschulik, Kristina
  last_name: Tschulik
- first_name: Stephan
  full_name: Schulz, Stephan
  last_name: Schulz
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
citation:
  ama: 'Leppin C, Placke‐Yan C, Bendt G, et al. Interfacial Softening and Electrolyte
    Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i>
    Spectroscopy and Fast EQCM‐D. <i>ChemCatChem</i>. 2026;18(2). doi:<a href="https://doi.org/10.1002/cctc.202501104">10.1002/cctc.202501104</a>'
  apa: 'Leppin, C., Placke‐Yan, C., Bendt, G., Hernandez, S., Tschulik, K., Schulz,
    S., &#38; Linnemann, J. (2026). Interfacial Softening and Electrolyte Uptake in
    Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy
    and Fast EQCM‐D. <i>ChemCatChem</i>, <i>18</i>(2), Article e01104. <a href="https://doi.org/10.1002/cctc.202501104">https://doi.org/10.1002/cctc.202501104</a>'
  bibtex: '@article{Leppin_Placke‐Yan_Bendt_Hernandez_Tschulik_Schulz_Linnemann_2026,
    title={Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub>
    OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D}, volume={18},
    DOI={<a href="https://doi.org/10.1002/cctc.202501104">10.1002/cctc.202501104</a>},
    number={2e01104}, journal={ChemCatChem}, publisher={Wiley}, author={Leppin, Christian
    and Placke‐Yan, Carsten and Bendt, Georg and Hernandez, Sheila and Tschulik, Kristina
    and Schulz, Stephan and Linnemann, Julia}, year={2026} }'
  chicago: 'Leppin, Christian, Carsten Placke‐Yan, Georg Bendt, Sheila Hernandez,
    Kristina Tschulik, Stephan Schulz, and Julia Linnemann. “Interfacial Softening
    and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from
    <i>Operando</i> Spectroscopy and Fast EQCM‐D.” <i>ChemCatChem</i> 18, no. 2 (2026).
    <a href="https://doi.org/10.1002/cctc.202501104">https://doi.org/10.1002/cctc.202501104</a>.'
  ieee: 'C. Leppin <i>et al.</i>, “Interfacial Softening and Electrolyte Uptake in
    Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy
    and Fast EQCM‐D,” <i>ChemCatChem</i>, vol. 18, no. 2, Art. no. e01104, 2026, doi:
    <a href="https://doi.org/10.1002/cctc.202501104">10.1002/cctc.202501104</a>.'
  mla: 'Leppin, Christian, et al. “Interfacial Softening and Electrolyte Uptake in
    Co<sub>3</sub>O<sub>4</sub> OER Catalysts: Insight from <i>Operando</i> Spectroscopy
    and Fast EQCM‐D.” <i>ChemCatChem</i>, vol. 18, no. 2, e01104, Wiley, 2026, doi:<a
    href="https://doi.org/10.1002/cctc.202501104">10.1002/cctc.202501104</a>.'
  short: C. Leppin, C. Placke‐Yan, G. Bendt, S. Hernandez, K. Tschulik, S. Schulz,
    J. Linnemann, ChemCatChem 18 (2026).
date_created: 2026-01-20T19:33:40Z
date_updated: 2026-01-20T19:36:51Z
department:
- _id: '985'
doi: 10.1002/cctc.202501104
intvolume: '        18'
issue: '2'
keyword:
- electrocatalysis
- Co3O4
- EQCM-D
- OER
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: ChemCatChem
publication_identifier:
  issn:
  - 1867-3880
  - 1867-3899
publication_status: published
publisher: Wiley
quality_controlled: '1'
status: public
title: 'Interfacial Softening and Electrolyte Uptake in Co<sub>3</sub>O<sub>4</sub>
  OER Catalysts: Insight from <i>Operando</i> Spectroscopy and Fast EQCM‐D'
type: journal_article
user_id: '116779'
volume: 18
year: '2026'
...
---
_id: '63686'
abstract:
- lang: eng
  text: "Translated from German, The Handbook of Qualitative and Quantitative Content
    Analysis is a comprehensive handbook which offers an application-orientated introduction
    to qualitative and quantitative content analysis methods.\r\n\r\nThe book provides
    explanations for beginners from bachelor level onwards on how to select an appropriate
    qualitative or quantitative content analysis method and how to use the chosen
    method(s) depending on research interest and amount of data. Part 1 defines the
    basics of qualitative and quantitative content analysis and empirical research,
    including research quality conventions and how to do interpretation; Part 2 is
    a practical guide to classical qualitative content analysis and semi-automated
    quantitative content analysis; and Part 3 introduces Python alongside automated
    techniques such as correspondence analysis, semantic network analysis, sentiment
    analysis, and topic modelling using generative and deep learning algorithms. Each
    of these sections are enriched with extensive examples and cover a range of software
    applications, including AntConc, MAXQDA, Python, and VosViewer.\r\n\r\nThis is
    the ideal resource for anyone interested in content analysis research methods
    across the social sciences, humanities, and data sciences."
alternative_title:
- Introduction to Classical, Digital, AI-supported, and Automated Data Analysis
author:
- first_name: Christian
  full_name: Schneijderberg, Christian
  last_name: Schneijderberg
- first_name: Oliver
  full_name: Wieczorek, Oliver
  last_name: Wieczorek
- first_name: Isabel
  full_name: Steinhardt, Isabel
  id: '90339'
  last_name: Steinhardt
  orcid: https://orcid.org/0000-0002-2590-6189
citation:
  ama: Schneijderberg C, Wieczorek O, Steinhardt I. <i>The Handbook of Qualitative
    and Quantitative Content Analysis</i>. Routledge; 2026. doi:<a href="https://doi.org/10.4324/9781003496397">10.4324/9781003496397</a>
  apa: Schneijderberg, C., Wieczorek, O., &#38; Steinhardt, I. (2026). <i>The Handbook
    of Qualitative and Quantitative Content Analysis</i>. Routledge. <a href="https://doi.org/10.4324/9781003496397">https://doi.org/10.4324/9781003496397</a>
  bibtex: '@book{Schneijderberg_Wieczorek_Steinhardt_2026, place={London}, title={The
    Handbook of Qualitative and Quantitative Content Analysis}, DOI={<a href="https://doi.org/10.4324/9781003496397">10.4324/9781003496397</a>},
    publisher={Routledge}, author={Schneijderberg, Christian and Wieczorek, Oliver
    and Steinhardt, Isabel}, year={2026} }'
  chicago: 'Schneijderberg, Christian, Oliver Wieczorek, and Isabel Steinhardt. <i>The
    Handbook of Qualitative and Quantitative Content Analysis</i>. London: Routledge,
    2026. <a href="https://doi.org/10.4324/9781003496397">https://doi.org/10.4324/9781003496397</a>.'
  ieee: 'C. Schneijderberg, O. Wieczorek, and I. Steinhardt, <i>The Handbook of Qualitative
    and Quantitative Content Analysis</i>. London: Routledge, 2026.'
  mla: Schneijderberg, Christian, et al. <i>The Handbook of Qualitative and Quantitative
    Content Analysis</i>. Routledge, 2026, doi:<a href="https://doi.org/10.4324/9781003496397">10.4324/9781003496397</a>.
  short: C. Schneijderberg, O. Wieczorek, I. Steinhardt, The Handbook of Qualitative
    and Quantitative Content Analysis, Routledge, London, 2026.
date_created: 2026-01-21T10:48:39Z
date_updated: 2026-01-21T10:50:44Z
department:
- _id: '121'
doi: 10.4324/9781003496397
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.taylorfrancis.com/books/9781003496397
oa: '1'
place: London
popular_science: '1'
publication_identifier:
  isbn:
  - '9781003496397'
publication_status: published
publisher: Routledge
status: public
title: The Handbook of Qualitative and Quantitative Content Analysis
type: book
user_id: '90339'
year: '2026'
...
---
_id: '63694'
author:
- first_name: Irene Dorothea
  full_name: Kunert, Irene Dorothea
  id: '84452'
  last_name: Kunert
citation:
  ama: Kunert ID. Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.
    <i>die hochschullehre</i>. 2026;12:81-96. doi:<a href="https://doi.org/10.3278/HSL2607W">10.3278/HSL2607W</a>
  apa: Kunert, I. D. (2026). Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren.
    <i>die hochschullehre</i>, <i>12</i>, 81–96. <a href="https://doi.org/10.3278/HSL2607W">https://doi.org/10.3278/HSL2607W</a>
  bibtex: '@article{Kunert_2026, title={Erbwort oder Buchwort? Decoding the Disciplines
    in Romanistikseminaren}, volume={12}, DOI={<a href="https://doi.org/10.3278/HSL2607W">10.3278/HSL2607W</a>},
    journal={die hochschullehre}, author={Kunert, Irene Dorothea}, year={2026}, pages={81–96}
    }'
  chicago: 'Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines
    in Romanistikseminaren.” <i>die hochschullehre</i> 12 (2026): 81–96. <a href="https://doi.org/10.3278/HSL2607W">https://doi.org/10.3278/HSL2607W</a>.'
  ieee: 'I. D. Kunert, “Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren,”
    <i>die hochschullehre</i>, vol. 12, pp. 81–96, 2026, doi: <a href="https://doi.org/10.3278/HSL2607W">10.3278/HSL2607W</a>.'
  mla: Kunert, Irene Dorothea. “Erbwort oder Buchwort? Decoding the Disciplines in
    Romanistikseminaren.” <i>die hochschullehre</i>, vol. 12, 2026, pp. 81–96, doi:<a
    href="https://doi.org/10.3278/HSL2607W">10.3278/HSL2607W</a>.
  short: I.D. Kunert, die hochschullehre 12 (2026) 81–96.
date_created: 2026-01-21T13:12:47Z
date_updated: 2026-01-21T13:13:00Z
doi: 10.3278/HSL2607W
intvolume: '        12'
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://die-hochschullehre.de/articles/349/files/6968cf812df64.pdf
oa: '1'
page: 81-96
publication: die hochschullehre
status: public
title: Erbwort oder Buchwort? Decoding the Disciplines in Romanistikseminaren
type: journal_article
user_id: '84452'
volume: 12
year: '2026'
...
---
_id: '63731'
abstract:
- lang: eng
  text: The Banzhaf power index can be used to quantify the explanatory power of single
    conditions in a configurational analysis that aims at identifying whether combinations
    of conditions are sufficient for an outcome. The latter method is an integral
    part of the Qualitative Comparative Analysis (QCA) approach. It is widely used
    in the literature, e.g., in the field of International Management. Haake and Schneider
    (2023) give a rigorous description of the connection between the empirical and
    game theoretic modeling. To justify that the Banzhaf index is an appropriate tool
    to measure the influence of a condition, this paper discusses a novel axiomatization
    of the Banzhaf index that uses axioms that are directly linked to the QCA methodology.
    As a side result, we demonstrate that in our model the Banzhaf index can be reinterpreted
    as an average of Shapley-Shubik indices.
author:
- first_name: Claus-Jochen
  full_name: Haake, Claus-Jochen
  id: '20801'
  last_name: Haake
- first_name: Martin
  full_name: Schneider, Martin
  id: '471'
  last_name: Schneider
  orcid: https://orcid.org/0000-0002-6961-3716
citation:
  ama: Haake C-J, Schneider M. An Axiomatization of the Banzhaf Index to Measure Influence
    in Qualitative Comparative Analysis. <i>International Journal of Game Theory</i>.
    2026;55. doi:<a href="https://doi.org/10.1007/s00182-026-00978-2">10.1007/s00182-026-00978-2</a>
  apa: Haake, C.-J., &#38; Schneider, M. (2026). An Axiomatization of the Banzhaf
    Index to Measure Influence in Qualitative Comparative Analysis. <i>International
    Journal of Game Theory</i>, <i>55</i>. <a href="https://doi.org/10.1007/s00182-026-00978-2">https://doi.org/10.1007/s00182-026-00978-2</a>
  bibtex: '@article{Haake_Schneider_2026, title={An Axiomatization of the Banzhaf
    Index to Measure Influence in Qualitative Comparative Analysis}, volume={55},
    DOI={<a href="https://doi.org/10.1007/s00182-026-00978-2">10.1007/s00182-026-00978-2</a>},
    journal={International Journal of Game Theory}, publisher={Springer}, author={Haake,
    Claus-Jochen and Schneider, Martin}, year={2026} }'
  chicago: Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf
    Index to Measure Influence in Qualitative Comparative Analysis.” <i>International
    Journal of Game Theory</i> 55 (2026). <a href="https://doi.org/10.1007/s00182-026-00978-2">https://doi.org/10.1007/s00182-026-00978-2</a>.
  ieee: 'C.-J. Haake and M. Schneider, “An Axiomatization of the Banzhaf Index to
    Measure Influence in Qualitative Comparative Analysis,” <i>International Journal
    of Game Theory</i>, vol. 55, 2026, doi: <a href="https://doi.org/10.1007/s00182-026-00978-2">10.1007/s00182-026-00978-2</a>.'
  mla: Haake, Claus-Jochen, and Martin Schneider. “An Axiomatization of the Banzhaf
    Index to Measure Influence in Qualitative Comparative Analysis.” <i>International
    Journal of Game Theory</i>, vol. 55, Springer, 2026, doi:<a href="https://doi.org/10.1007/s00182-026-00978-2">10.1007/s00182-026-00978-2</a>.
  short: C.-J. Haake, M. Schneider, International Journal of Game Theory 55 (2026).
date_created: 2026-01-26T12:30:50Z
date_updated: 2026-01-26T12:42:04Z
department:
- _id: '205'
- _id: '475'
- _id: '185'
doi: 10.1007/s00182-026-00978-2
intvolume: '        55'
keyword:
- Banzhaf index
- axiomatization
- QCA
- explanatory power
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://link.springer.com/article/10.1007/s00182-026-00978-2#citeas
oa: '1'
publication: International Journal of Game Theory
publisher: Springer
quality_controlled: '1'
status: public
title: An Axiomatization of the Banzhaf Index to Measure Influence in Qualitative
  Comparative Analysis
type: journal_article
user_id: '20801'
volume: 55
year: '2026'
...
---
_id: '63800'
abstract:
- lang: eng
  text: In this contribution, we address the estimation of the frequency-dependent
    elastic parameters of polymers in the ultrasound range, which is formulated as
    an inverse problem. This inverse problem is implemented as a nonlinear regression-type
    optimization problem, in which the simulation signals are fitted to the measurement
    signals. These signals consist of displacement responses in waveguides, focusing
    on hollow cylindrical geometries to enhance the simulation efficiency. To accelerate
    the optimization and reduce the number of model evaluations and wait times, we
    propose two novel methods. First, we introduce an adaptation of the Levenberg–Marquardt
    method derived from a geometrical interpretation of the least-squares optimization
    problem. Second, we introduce an improved objective function based on the autocorrelated
    envelopes of the measurement and simulation signals. Given that this study primarily
    relies on simulation data to quantify optimization convergence, we aggregate the
    expected ranges of realistic material parameters and derive their distributions
    to ensure the reproducibility of optimizations with proper measurements. We demonstrate
    the effectiveness of our objective function modification and step adaptation for
    various materials with isotropic material symmetry by comparing them with the
    Broyden–Fletcher–Goldfarb–Shanno method. In all cases, our method reduces the
    total number of model evaluations, thereby shortening the time to identify the
    material parameters.
author:
- first_name: Dominik
  full_name: Itner, Dominik
  last_name: Itner
- first_name: Dmitrij
  full_name: Dreiling, Dmitrij
  id: '32616'
  last_name: Dreiling
- first_name: Hauke
  full_name: Gravenkamp, Hauke
  last_name: Gravenkamp
- first_name: Bernd
  full_name: Henning, Bernd
  id: '213'
  last_name: Henning
- first_name: Carolin
  full_name: Birk, Carolin
  last_name: Birk
citation:
  ama: Itner D, Dreiling D, Gravenkamp H, Henning B, Birk C. A modified Levenberg–Marquardt
    method for estimating the elastic material parameters of polymer waveguides using
    residuals between autocorrelated frequency responses. <i>Mechanical Systems and
    Signal Processing</i>. 2026;247:113904. doi:<a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>
  apa: Itner, D., Dreiling, D., Gravenkamp, H., Henning, B., &#38; Birk, C. (2026).
    A modified Levenberg–Marquardt method for estimating the elastic material parameters
    of polymer waveguides using residuals between autocorrelated frequency responses.
    <i>Mechanical Systems and Signal Processing</i>, <i>247</i>, 113904. <a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>
  bibtex: '@article{Itner_Dreiling_Gravenkamp_Henning_Birk_2026, title={A modified
    Levenberg–Marquardt method for estimating the elastic material parameters of polymer
    waveguides using residuals between autocorrelated frequency responses}, volume={247},
    DOI={<a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>},
    journal={Mechanical Systems and Signal Processing}, author={Itner, Dominik and
    Dreiling, Dmitrij and Gravenkamp, Hauke and Henning, Bernd and Birk, Carolin},
    year={2026}, pages={113904} }'
  chicago: 'Itner, Dominik, Dmitrij Dreiling, Hauke Gravenkamp, Bernd Henning, and
    Carolin Birk. “A Modified Levenberg–Marquardt Method for Estimating the Elastic
    Material Parameters of Polymer Waveguides Using Residuals between Autocorrelated
    Frequency Responses.” <i>Mechanical Systems and Signal Processing</i> 247 (2026):
    113904. <a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>.'
  ieee: 'D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, and C. Birk, “A modified
    Levenberg–Marquardt method for estimating the elastic material parameters of polymer
    waveguides using residuals between autocorrelated frequency responses,” <i>Mechanical
    Systems and Signal Processing</i>, vol. 247, p. 113904, 2026, doi: <a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>.'
  mla: Itner, Dominik, et al. “A Modified Levenberg–Marquardt Method for Estimating
    the Elastic Material Parameters of Polymer Waveguides Using Residuals between
    Autocorrelated Frequency Responses.” <i>Mechanical Systems and Signal Processing</i>,
    vol. 247, 2026, p. 113904, doi:<a href="https://doi.org/10.1016/j.ymssp.2026.113904">https://doi.org/10.1016/j.ymssp.2026.113904</a>.
  short: D. Itner, D. Dreiling, H. Gravenkamp, B. Henning, C. Birk, Mechanical Systems
    and Signal Processing 247 (2026) 113904.
date_created: 2026-01-29T08:53:42Z
date_updated: 2026-02-02T12:44:47Z
department:
- _id: '49'
doi: https://doi.org/10.1016/j.ymssp.2026.113904
intvolume: '       247'
keyword:
- Material parameter estimation
- Waveguide
- Nonlinear optimization
- Inverse problem
- Least squares
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.sciencedirect.com/science/article/pii/S0888327026000610/pdfft?md5=16e8493b44527f4ab0a6d13f634a01c3&pid=1-s2.0-S0888327026000610-main.pdf
oa: '1'
page: '113904'
project:
- _id: '89'
  name: Vollständige Bestimmung der akustischen Materialparameter von Polymeren
publication: Mechanical Systems and Signal Processing
publication_identifier:
  issn:
  - 0888-3270
publication_status: published
status: public
title: A modified Levenberg–Marquardt method for estimating the elastic material parameters
  of polymer waveguides using residuals between autocorrelated frequency responses
type: journal_article
user_id: '32616'
volume: 247
year: '2026'
...
---
_id: '63827'
abstract:
- lang: eng
  text: Light-emitting diodes (LEDs) are becoming increasingly important across various
    sectors of the lighting industry and are being used more frequently. In the field
    of symbolic projection, research is increasingly focusing on implementing light
    modulation using energy-efficient, incoherent LEDs rather than lasers. Since light
    modulation in micro- and nano-optics is typically achieved through phase modulation,
    Finite-Difference Time-Domain (FDTD) simulations are employed for analysis. The
    objective of this article is to investigate different approaches for approximating
    incoherent monochromatic light sources within FDTD simulations. To this end, two
    approaches based on dipole sources are considered, as well as a method involving
    plane waves with modulated wavefronts based on Cosine–Fourier functions and a
    method based on the superposition of Gaussian beams. These methods are evaluated
    in terms of their accuracy using a two-dimensional double-slit configuration and
    are compared against a fully incoherent analytical reference.
article_number: '128'
article_type: original
author:
- first_name: Dominik
  full_name: Metzner, Dominik
  last_name: Metzner
- first_name: Jens
  full_name: Potthoff, Jens
  last_name: Potthoff
- first_name: Thomas
  full_name: Zentgraf, Thomas
  id: '30525'
  last_name: Zentgraf
  orcid: 0000-0002-8662-1101
- first_name: Jens
  full_name: Förstner, Jens
  id: '158'
  last_name: Förstner
  orcid: 0000-0001-7059-9862
citation:
  ama: Metzner D, Potthoff J, Zentgraf T, Förstner J. Approximating Incoherent Monochromatic
    Light Sources in FDTD Simulations. <i>Photonics</i>. 2026;13(2). doi:<a href="https://doi.org/10.3390/photonics13020128">10.3390/photonics13020128</a>
  apa: Metzner, D., Potthoff, J., Zentgraf, T., &#38; Förstner, J. (2026). Approximating
    Incoherent Monochromatic Light Sources in FDTD Simulations. <i>Photonics</i>,
    <i>13</i>(2), Article 128. <a href="https://doi.org/10.3390/photonics13020128">https://doi.org/10.3390/photonics13020128</a>
  bibtex: '@article{Metzner_Potthoff_Zentgraf_Förstner_2026, title={Approximating
    Incoherent Monochromatic Light Sources in FDTD Simulations}, volume={13}, DOI={<a
    href="https://doi.org/10.3390/photonics13020128">10.3390/photonics13020128</a>},
    number={2128}, journal={Photonics}, publisher={MDPI AG}, author={Metzner, Dominik
    and Potthoff, Jens and Zentgraf, Thomas and Förstner, Jens}, year={2026} }'
  chicago: Metzner, Dominik, Jens Potthoff, Thomas Zentgraf, and Jens Förstner. “Approximating
    Incoherent Monochromatic Light Sources in FDTD Simulations.” <i>Photonics</i>
    13, no. 2 (2026). <a href="https://doi.org/10.3390/photonics13020128">https://doi.org/10.3390/photonics13020128</a>.
  ieee: 'D. Metzner, J. Potthoff, T. Zentgraf, and J. Förstner, “Approximating Incoherent
    Monochromatic Light Sources in FDTD Simulations,” <i>Photonics</i>, vol. 13, no.
    2, Art. no. 128, 2026, doi: <a href="https://doi.org/10.3390/photonics13020128">10.3390/photonics13020128</a>.'
  mla: Metzner, Dominik, et al. “Approximating Incoherent Monochromatic Light Sources
    in FDTD Simulations.” <i>Photonics</i>, vol. 13, no. 2, 128, MDPI AG, 2026, doi:<a
    href="https://doi.org/10.3390/photonics13020128">10.3390/photonics13020128</a>.
  short: D. Metzner, J. Potthoff, T. Zentgraf, J. Förstner, Photonics 13 (2026).
date_created: 2026-02-02T07:18:03Z
date_updated: 2026-02-02T21:38:34Z
department:
- _id: '15'
- _id: '230'
- _id: '289'
- _id: '623'
- _id: '61'
doi: 10.3390/photonics13020128
intvolume: '        13'
issue: '2'
keyword:
- tet_topic_opticalantenna
- tet_topic_numerics
- tet_topic_meta
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.mdpi.com/2304-6732/13/2/128
oa: '1'
publication: Photonics
publication_identifier:
  issn:
  - 2304-6732
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Approximating Incoherent Monochromatic Light Sources in FDTD Simulations
type: journal_article
user_id: '158'
volume: 13
year: '2026'
...
---
_id: '61463'
abstract:
- lang: ger
  text: Vernetztes Wissen ist ein zentrales Lernziel des Hochschulstudiums, insbesondere
    im interdisziplinär angelegten Studienfach Komparatistik. Um den Aufbau vernetzten
    Wissens bei Bachelorstudierenden der Komparatistik zu unterstützen, ist in diesem
    Projekt Portfolioarbeit eingesetzt worden, die als Methode selbsttätigen und selbstreflexiven
    Lernens geeignet erscheint, zur Auseinandersetzung mit Lerninhalten zu motivieren
    und zur Kompetenzentwicklung der Studierenden beizutragen. Mittels unstrukturierter
    Beobachtungen der Portfolioarbeit im Seminar sind inhaltliche Effekte und methodische
    Entwicklungen erfasst worden. Anhand anteilig quantitativer, überwiegend qualitativer
    Inhaltsanalysen der Portfolios sind konkrete Vernetzungen zwischen Lerninhalten
    ermittelt worden. Die Explorationsstudie zeigt veränderte Perspektiven und geweckte
    Interessen bei den Studierenden durch die Portfolioarbeit sowie vielfältige Kontextualisierungen,
    Vergleiche und Verknüpfungen in den Portfolios auf und bietet hierdurch einen
    möglichen Ansatzpunkt für strukturelle Empfehlungen für das Studienfach Komparatistik.
- lang: eng
  text: Knowledge networks are a central learning objective in higher education, especially
    in the inherently interdisciplinary discipline of comparative literary and cultural
    studies. To support the development of knowledge networks with undergraduate students
    of comparative literary and cultural studies, this project utilized portfolio
    work as a method of self-actuating and self-reflective learning suitable for motivating
    examinations of learning contents and contributing to students’ skill development.
    Using naturalistic observations of the portfolio work within the seminar, effects
    and developments were recorded. With partly quantitative, predominantly qualitative
    content analyses of the portfolios, concrete connections between learning contents
    were determined. The explorative study shows changed perspectives and peaked interests
    of the students because of portfolio work as well as diverse contextualisations,
    comparisons and connections in the portfolios, thus offering a possible starting
    point for structural recommendations for the discipline of comparative literary
    and cultural studies.
article_type: original
author:
- first_name: Ronja
  full_name: Hannebohm, Ronja
  id: '27419'
  last_name: Hannebohm
citation:
  ama: 'Hannebohm R. Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens
    im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende
    Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift
    für Studium und Lehre</i>. 2026;12:65-80. doi:<a href="https://doi.org/10.3278/HSL2606W">10.3278/HSL2606W</a>'
  apa: 'Hannebohm, R. (2026). Potenziale der Portfolioarbeit für den Aufbau vernetzten
    Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende
    Literatur- und Kulturwissenschaft. <i>die hochschullehre: Interdisziplinäre Zeitschrift
    für Studium und Lehre</i>, <i>12</i>, 65–80. <a href="https://doi.org/10.3278/HSL2606W">https://doi.org/10.3278/HSL2606W</a>'
  bibtex: '@article{Hannebohm_2026, title={Potenziale der Portfolioarbeit für den
    Aufbau vernetzten Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach
    Komparatistik/Vergleichende Literatur- und Kulturwissenschaft}, volume={12}, DOI={<a
    href="https://doi.org/10.3278/HSL2606W">10.3278/HSL2606W</a>}, journal={die hochschullehre:
    Interdisziplinäre Zeitschrift für Studium und Lehre}, publisher={wbv}, author={Hannebohm,
    Ronja}, year={2026}, pages={65–80} }'
  chicago: 'Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten
    Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende
    Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift
    für Studium und Lehre</i> 12 (2026): 65–80. <a href="https://doi.org/10.3278/HSL2606W">https://doi.org/10.3278/HSL2606W</a>.'
  ieee: 'R. Hannebohm, “Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens
    im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende
    Literatur- und Kulturwissenschaft,” <i>die hochschullehre: Interdisziplinäre Zeitschrift
    für Studium und Lehre</i>, vol. 12, pp. 65–80, 2026, doi: <a href="https://doi.org/10.3278/HSL2606W">10.3278/HSL2606W</a>.'
  mla: 'Hannebohm, Ronja. “Potenziale der Portfolioarbeit für den Aufbau vernetzten
    Wissens im Bachelorstudium: Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende
    Literatur- und Kulturwissenschaft.” <i>die hochschullehre: Interdisziplinäre Zeitschrift
    für Studium und Lehre</i>, vol. 12, wbv, 2026, pp. 65–80, doi:<a href="https://doi.org/10.3278/HSL2606W">10.3278/HSL2606W</a>.'
  short: 'R. Hannebohm, die hochschullehre: Interdisziplinäre Zeitschrift für Studium
    und Lehre 12 (2026) 65–80.'
date_created: 2025-09-29T12:34:48Z
date_updated: 2026-02-03T10:59:36Z
department:
- _id: '116'
doi: 10.3278/HSL2606W
intvolume: '        12'
keyword:
- Portfolioarbeit
- portfolio work
- vernetztes Wissen
- knowledge networks
- Beobachtung
- naturalistic observation
- Inhaltsanalyse
- content analysis
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.wbv.de/shop/Paderborner-Beitraege-2025-HSLT2601W
oa: '1'
page: 65-80
publication: 'die hochschullehre: Interdisziplinäre Zeitschrift für Studium und Lehre'
publication_identifier:
  issn:
  - 2199–8825
publication_status: published
publisher: wbv
quality_controlled: '1'
status: public
title: 'Potenziale der Portfolioarbeit für den Aufbau vernetzten Wissens im Bachelorstudium:
  Eine Explorationsstudie im Studienfach Komparatistik/Vergleichende Literatur- und
  Kulturwissenschaft'
type: journal_article
user_id: '27419'
volume: 12
year: '2026'
...
---
_id: '63883'
abstract:
- lang: eng
  text: Proton exchange membranes (PEMs) are essential for fuel cells, yet conventional
    materials like Nafion suffer from humidity dependence and limited thermal stability.
    This study introduces sulfonated phenylene-bridged periodic mesoporous organosilicas
    (PMOs) as promising inorganic–organic hybrid PEMs, synthesized via surfactant-templating
    with varying alkyl chain lengths for different mesopore sizes. Post-synthetic
    functionalization involves nitration of phenylene moieties, reduction to amines,
    and ring-opening of propane or butane sultones to graft sulfonic acid groups via
    flexible spacers, achieving homogeneous distribution along pore walls. Post-functionalization
    is confirmed by powder X-ray diffraction (PXRD), revealing preserved 2D hexagonal
    p6mm ordering and phenylene stacking. N2 physisorption shows type IV isotherms
    with reduced pore volumes and pore sizes. 1H NMR is used to quantify functionalization
    degrees. Impedance spectroscopy on pressed pellets demonstrates proton conductivities
    up to 2 × 10−3 S cm−1 at 30 °C and 90% RH, depending on the functionalization
    degree, confirming sulfonic acid-mediated conduction.
article_number: '203'
author:
- first_name: Tobias
  full_name: Wagner, Tobias
  last_name: Wagner
- first_name: Michael
  full_name: Tiemann, Michael
  id: '23547'
  last_name: Tiemann
  orcid: 0000-0003-1711-2722
citation:
  ama: Wagner T, Tiemann M. Proton-Conducting Sulfonated Periodic Mesoporous Organosilica.
    <i>Nanomaterials</i>. 2026;16(3). doi:<a href="https://doi.org/10.3390/nano16030203">10.3390/nano16030203</a>
  apa: Wagner, T., &#38; Tiemann, M. (2026). Proton-Conducting Sulfonated Periodic
    Mesoporous Organosilica. <i>Nanomaterials</i>, <i>16</i>(3), Article 203. <a href="https://doi.org/10.3390/nano16030203">https://doi.org/10.3390/nano16030203</a>
  bibtex: '@article{Wagner_Tiemann_2026, title={Proton-Conducting Sulfonated Periodic
    Mesoporous Organosilica}, volume={16}, DOI={<a href="https://doi.org/10.3390/nano16030203">10.3390/nano16030203</a>},
    number={3203}, journal={Nanomaterials}, publisher={MDPI AG}, author={Wagner, Tobias
    and Tiemann, Michael}, year={2026} }'
  chicago: Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic
    Mesoporous Organosilica.” <i>Nanomaterials</i> 16, no. 3 (2026). <a href="https://doi.org/10.3390/nano16030203">https://doi.org/10.3390/nano16030203</a>.
  ieee: 'T. Wagner and M. Tiemann, “Proton-Conducting Sulfonated Periodic Mesoporous
    Organosilica,” <i>Nanomaterials</i>, vol. 16, no. 3, Art. no. 203, 2026, doi:
    <a href="https://doi.org/10.3390/nano16030203">10.3390/nano16030203</a>.'
  mla: Wagner, Tobias, and Michael Tiemann. “Proton-Conducting Sulfonated Periodic
    Mesoporous Organosilica.” <i>Nanomaterials</i>, vol. 16, no. 3, 203, MDPI AG,
    2026, doi:<a href="https://doi.org/10.3390/nano16030203">10.3390/nano16030203</a>.
  short: T. Wagner, M. Tiemann, Nanomaterials 16 (2026).
date_created: 2026-02-05T09:46:20Z
date_updated: 2026-02-05T09:48:27Z
department:
- _id: '35'
- _id: '2'
- _id: '307'
doi: 10.3390/nano16030203
intvolume: '        16'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
oa: '1'
publication: Nanomaterials
publication_identifier:
  issn:
  - 2079-4991
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Proton-Conducting Sulfonated Periodic Mesoporous Organosilica
type: journal_article
user_id: '23547'
volume: 16
year: '2026'
...
---
_id: '63898'
author:
- first_name: Friedrich
  full_name: Markewitz, Friedrich
  id: '67227'
  last_name: Markewitz
citation:
  ama: Markewitz F. Langrezension zu James McElvennys “Entstehung und Entwicklung
    der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” <i>Zeitschrift
    für Angewandte Linguistik</i>. 2026;84.
  apa: Markewitz, F. (2026). Langrezension zu James McElvennys “Entstehung und Entwicklung
    der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.” In <i>Zeitschrift
    für Angewandte Linguistik</i> (Vol. 84).
  bibtex: '@article{Markewitz_2026, title={Langrezension zu James McElvennys “Entstehung
    und Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg”},
    volume={84}, journal={Zeitschrift für Angewandte Linguistik}, author={Markewitz,
    Friedrich}, year={2026} }'
  chicago: Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und
    Entwicklung der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’”
    <i>Zeitschrift für Angewandte Linguistik</i>, 2026.
  ieee: F. Markewitz, “Langrezension zu James McElvennys ‘Entstehung und Entwicklung
    der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg,’” <i>Zeitschrift
    für Angewandte Linguistik</i>, vol. 84. 2026.
  mla: Markewitz, Friedrich. “Langrezension zu James McElvennys ‘Entstehung und Entwicklung
    der modernen Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg.’” <i>Zeitschrift
    für Angewandte Linguistik</i>, vol. 84, 2026.
  short: F. Markewitz, Zeitschrift für Angewandte Linguistik 84 (2026).
date_created: 2026-02-06T07:59:43Z
date_updated: 2026-02-06T07:59:49Z
intvolume: '        84'
language:
- iso: ger
main_file_link:
- open_access: '1'
  url: https://www.degruyterbrill.com/document/doi/10.1515/zfal-2026-2009/html
oa: '1'
publication: Zeitschrift für Angewandte Linguistik
publication_status: epub_ahead
status: public
title: Langrezension zu James McElvennys 'Entstehung und Entwicklung der modernen
  Linguistik. Von den Anfängen bis zum Zweiten Weltkrieg'
type: review
user_id: '67227'
volume: 84
year: '2026'
...
---
_id: '63777'
author:
- first_name: Nicole
  full_name: ' Hallmann, Nicole'
  last_name: ' Hallmann'
- first_name: Marie
  full_name: Mahs, Marie
  last_name: Mahs
- first_name: Lloyd-Spencer
  full_name: Grant , Lloyd-Spencer
  last_name: 'Grant '
- first_name: Marla Ricarda
  full_name: Baier, Marla Ricarda
  id: '68193'
  last_name: Baier
- first_name: Alina Luisa
  full_name: ' Cerezo Alarcon, Alina Luisa'
  last_name: ' Cerezo Alarcon'
- first_name: 'Florian '
  full_name: 'Kepper, Florian '
  last_name: Kepper
- first_name: Isabel
  full_name: Steinhardt, Isabel
  id: '90339'
  last_name: Steinhardt
  orcid: https://orcid.org/0000-0002-2590-6189
citation:
  ama: Hallmann N, Mahs M, Grant  L-S, et al. Selbstgesteuertes Lernen, Partizipation
    und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>die hochschullehre</i>.
    Published online 2026. doi:<a href="https://doi.org/10.3278/HSL2602W">10.3278/HSL2602W</a>
  apa: Hallmann, N., Mahs, M., Grant , L.-S., Baier, M. R.,  Cerezo Alarcon, A. L.,
    Kepper, F., &#38; Steinhardt, I. (2026). Selbstgesteuertes Lernen, Partizipation
    und das 4K-Modell. Lehre in der Kultur der Digitalität. <i>Die Hochschullehre</i>.
    <a href="https://doi.org/10.3278/HSL2602W">https://doi.org/10.3278/HSL2602W</a>
  bibtex: '@article{ Hallmann_Mahs_Grant _Baier_ Cerezo Alarcon_Kepper_Steinhardt_2026,
    title={Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der
    Kultur der Digitalität}, DOI={<a href="https://doi.org/10.3278/HSL2602W">10.3278/HSL2602W</a>},
    journal={die hochschullehre}, author={ Hallmann, Nicole and Mahs, Marie and Grant
    , Lloyd-Spencer and Baier, Marla Ricarda and  Cerezo Alarcon, Alina Luisa and
    Kepper, Florian  and Steinhardt, Isabel}, year={2026} }'
  chicago: Hallmann, Nicole, Marie Mahs, Lloyd-Spencer Grant , Marla Ricarda Baier,
    Alina Luisa  Cerezo Alarcon, Florian  Kepper, and Isabel Steinhardt. “Selbstgesteuertes
    Lernen, Partizipation Und Das 4K-Modell. Lehre in Der Kultur Der Digitalität.”
    <i>Die Hochschullehre</i>, 2026. <a href="https://doi.org/10.3278/HSL2602W">https://doi.org/10.3278/HSL2602W</a>.
  ieee: 'N.  Hallmann <i>et al.</i>, “Selbstgesteuertes Lernen, Partizipation und
    das 4K-Modell. Lehre in der Kultur der Digitalität,” <i>die hochschullehre</i>,
    2026, doi: <a href="https://doi.org/10.3278/HSL2602W">10.3278/HSL2602W</a>.'
  mla: Hallmann, Nicole, et al. “Selbstgesteuertes Lernen, Partizipation Und Das 4K-Modell.
    Lehre in Der Kultur Der Digitalität.” <i>Die Hochschullehre</i>, 2026, doi:<a
    href="https://doi.org/10.3278/HSL2602W">10.3278/HSL2602W</a>.
  short: N.  Hallmann, M. Mahs, L.-S. Grant , M.R. Baier, A.L.  Cerezo Alarcon, F.
    Kepper, I. Steinhardt, Die Hochschullehre (2026).
date_created: 2026-01-27T16:18:34Z
date_updated: 2026-02-11T12:09:42Z
department:
- _id: '477'
doi: 10.3278/HSL2602W
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.wbv.de/shop/Selbstgesteuertes-Lernen-Partizipation-und-das-4K-Modell.-Lehre-in-der-Kultur-der-Digitalitaet-HSL2602W
oa: '1'
publication: die hochschullehre
status: public
title: Selbstgesteuertes Lernen, Partizipation und das 4K-Modell. Lehre in der Kultur
  der Digitalität
type: journal_article
user_id: '68193'
year: '2026'
...
---
_id: '64129'
abstract:
- lang: eng
  text: <jats:p>Selecting scan angles such that surface segments are aligned with
    straight X-ray paths (i.e., rays are tangential to the surface and therefore perpendicular
    to the local surface normal) is known to produce sharper transitions of those
    surface segments in the reconstructed volume. This enhances dimensional accuracy
    in sparse-view computed tomography (CT). However, existing approaches offer no
    direct means to exploit this criterion for automatic scan-angle optimization.
    We propose a method that uses a virtual representation of the CT setup, including
    an STL surface model of the inspected part, to automatically identify taskspecific
    scan angles. Using elementary vector calculus, the algorithm determines projection
    directions that generate tangential X-rays for targeted surface segments. To support
    different levels of geometric complexity, we introduce two variants of the angle-selection
    procedure. The methods were experimentally validated on two objects with distinct
    absorption and geometric characteristics. For a steel gauge block, employing the
    minimum number of task-specific projections required for surface-data completeness
    substantially outperformed a conventional high-projection scan. For a geometrically
    more complex test object, surface-related errors were still reduced within the
    region of interest. The proposed approach – particularly suited for flat surface
    structures and not accounting for image-degrading factors other than cone-beam
    artifacts – shows promise for high-throughput dimensional metrology of mono-material
    parts.</jats:p>
author:
- first_name: Lorenz
  full_name: Butzhammer, Lorenz
  last_name: Butzhammer
- first_name: Matthias Robert Oskar
  full_name: Braun, Matthias Robert Oskar
  last_name: Braun
- first_name: Colin
  full_name: Herath, Colin
  last_name: Herath
- first_name: Tino
  full_name: Hausotte, Tino
  last_name: Hausotte
citation:
  ama: 'Butzhammer L, Braun MRO, Herath C, Hausotte T. Higher accuracy with fewer
    projections? Automated scan angle selection for dimensional Computed Tomography
    based on a simple data completeness measure for the part surface. In: <i>E-Journal
    of Nondestructive Testing</i>. Vol 31. NDT.net GmbH &#38; Co. KG; 2026. doi:<a
    href="https://doi.org/10.58286/32560">10.58286/32560</a>'
  apa: Butzhammer, L., Braun, M. R. O., Herath, C., &#38; Hausotte, T. (2026). Higher
    accuracy with fewer projections? Automated scan angle selection for dimensional
    Computed Tomography based on a simple data completeness measure for the part surface.
    <i>E-Journal of Nondestructive Testing</i>, <i>31</i>(3). <a href="https://doi.org/10.58286/32560">https://doi.org/10.58286/32560</a>
  bibtex: '@inproceedings{Butzhammer_Braun_Herath_Hausotte_2026, title={Higher accuracy
    with fewer projections? Automated scan angle selection for dimensional Computed
    Tomography based on a simple data completeness measure for the part surface},
    volume={31}, DOI={<a href="https://doi.org/10.58286/32560">10.58286/32560</a>},
    number={3}, booktitle={e-Journal of Nondestructive Testing}, publisher={NDT.net
    GmbH &#38; Co. KG}, author={Butzhammer, Lorenz and Braun, Matthias Robert Oskar
    and Herath, Colin and Hausotte, Tino}, year={2026} }'
  chicago: Butzhammer, Lorenz, Matthias Robert Oskar Braun, Colin Herath, and Tino
    Hausotte. “Higher Accuracy with Fewer Projections? Automated Scan Angle Selection
    for Dimensional Computed Tomography Based on a Simple Data Completeness Measure
    for the Part Surface.” In <i>E-Journal of Nondestructive Testing</i>, Vol. 31.
    NDT.net GmbH &#38; Co. KG, 2026. <a href="https://doi.org/10.58286/32560">https://doi.org/10.58286/32560</a>.
  ieee: 'L. Butzhammer, M. R. O. Braun, C. Herath, and T. Hausotte, “Higher accuracy
    with fewer projections? Automated scan angle selection for dimensional Computed
    Tomography based on a simple data completeness measure for the part surface,”
    in <i>e-Journal of Nondestructive Testing</i>, Linz, 2026, vol. 31, no. 3, doi:
    <a href="https://doi.org/10.58286/32560">10.58286/32560</a>.'
  mla: Butzhammer, Lorenz, et al. “Higher Accuracy with Fewer Projections? Automated
    Scan Angle Selection for Dimensional Computed Tomography Based on a Simple Data
    Completeness Measure for the Part Surface.” <i>E-Journal of Nondestructive Testing</i>,
    vol. 31, no. 3, NDT.net GmbH &#38; Co. KG, 2026, doi:<a href="https://doi.org/10.58286/32560">10.58286/32560</a>.
  short: 'L. Butzhammer, M.R.O. Braun, C. Herath, T. Hausotte, in: E-Journal of Nondestructive
    Testing, NDT.net GmbH &#38; Co. KG, 2026.'
conference:
  location: Linz
  name: 15th Conference on Industrial Computed Tomography (iCT)
date_created: 2026-02-12T10:11:08Z
date_updated: 2026-02-12T10:41:45Z
department:
- _id: '630'
doi: 10.58286/32560
intvolume: '        31'
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.ndt.net/article/ctc2026/papers/ict26_Contribution_184.pdf
oa: '1'
project:
- _id: '130'
  name: 'TRR 285:  Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
    Prozessketten'
- _id: '133'
  name: TRR 285 - Project Area C
- _id: '149'
  name: TRR 285 - Subproject C05
publication: e-Journal of Nondestructive Testing
publication_identifier:
  issn:
  - 1435-4934
publication_status: published
publisher: NDT.net GmbH & Co. KG
quality_controlled: '1'
status: public
title: Higher accuracy with fewer projections? Automated scan angle selection for
  dimensional Computed Tomography based on a simple data completeness measure for
  the part surface
type: conference
user_id: '93720'
volume: 31
year: '2026'
...
---
_id: '64182'
abstract:
- lang: eng
  text: Overcoming the slow kinetics of the oxygen evolution reaction at the anode
    is a key challenge for the production of hydrogen via electrolysis. This reaction
    operates at very positive potentials, where the electrocatalyst is exposed to
    highly oxidative conditions and prone to potential-dependent transformation of
    the near-surface region. While substantial evidence for such surface restructuring
    exists, its extent and relevance for the catalyst’s activity are unclear. We address
    this topic for the case of Co3O4, one of the best-known electrocatalysts exhibiting
    surface restructuring, by studies of epitaxial (111)-ordered electrodeposited
    films with combined operando X-ray surface diffraction and absorption spectroscopy,
    electrochemical impedance spectroscopy, and electrochemical measurements on rotating
    disk electrodes. Comparison of the as-prepared and annealed state of the same
    samples, which both are stable even under long-term oxygen evolution conditions,
    provides clear insight into the role of surface defects. Our results show that
    defect-free annealed Co3O4(111) surfaces are structurally stable over a wide potential
    range and hydroxylate via adsorption at surface oxygen and Co sites. Potential-induced
    surface restructuring of the Co3O4 lattice occurs only in the presence of surface
    defects, leading to the formation of the well-known nanometer-thick oxyhydroxide
    skin layer. The presence of this skin layer promotes oxygen evolution at low overpotentials
    but results in higher Tafel slopes. As a result, highly ordered Co3O4(111) surfaces
    are more active at high current densities than defective Co3O4 surfaces that undergo
    surface restructuring. These results highlight that strategies for catalyst surface
    defect engineering need to be application-oriented.
article_number: acscatal.5c08785
article_type: original
author:
- first_name: Carl Hendric
  full_name: Scharf, Carl Hendric
  last_name: Scharf
- first_name: Alex
  full_name: Chandraraj, Alex
  last_name: Chandraraj
- first_name: Konrad
  full_name: Dyk, Konrad
  last_name: Dyk
- first_name: Felix
  full_name: Stebner, Felix
  last_name: Stebner
- first_name: Sören
  full_name: Lepin, Sören
  last_name: Lepin
- first_name: Jing
  full_name: Tian, Jing
  last_name: Tian
- first_name: Laila
  full_name: El Bergmi Byaz, Laila
  last_name: El Bergmi Byaz
- first_name: Jochim
  full_name: Stettner, Jochim
  last_name: Stettner
- first_name: Christian
  full_name: Leppin, Christian
  id: '117722'
  last_name: Leppin
- first_name: Anastasiia
  full_name: Kotova, Anastasiia
  last_name: Kotova
- first_name: Sebastian
  full_name: Reinke, Sebastian
  id: '117727'
  last_name: Reinke
- first_name: Julia
  full_name: Linnemann, Julia
  id: '116779'
  last_name: Linnemann
  orcid: 0000-0001-6883-5424
- first_name: Fouad
  full_name: Maroun, Fouad
  last_name: Maroun
- first_name: Olaf M.
  full_name: Magnussen, Olaf M.
  last_name: Magnussen
citation:
  ama: Scharf CH, Chandraraj A, Dyk K, et al. Role of Defects in Reversible Surface
    Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts.
    <i>ACS Catalysis</i>. Published online 2026. doi:<a href="https://doi.org/10.1021/acscatal.5c08785">10.1021/acscatal.5c08785</a>
  apa: Scharf, C. H., Chandraraj, A., Dyk, K., Stebner, F., Lepin, S., Tian, J., El
    Bergmi Byaz, L., Stettner, J., Leppin, C., Kotova, A., Reinke, S., Linnemann,
    J., Maroun, F., &#38; Magnussen, O. M. (2026). Role of Defects in Reversible Surface
    Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts.
    <i>ACS Catalysis</i>, Article acscatal.5c08785. <a href="https://doi.org/10.1021/acscatal.5c08785">https://doi.org/10.1021/acscatal.5c08785</a>
  bibtex: '@article{Scharf_Chandraraj_Dyk_Stebner_Lepin_Tian_El Bergmi Byaz_Stettner_Leppin_Kotova_et
    al._2026, title={Role of Defects in Reversible Surface Restructuring and Activity
    of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts}, DOI={<a href="https://doi.org/10.1021/acscatal.5c08785">10.1021/acscatal.5c08785</a>},
    number={acscatal.5c08785}, journal={ACS Catalysis}, publisher={American Chemical
    Society (ACS)}, author={Scharf, Carl Hendric and Chandraraj, Alex and Dyk, Konrad
    and Stebner, Felix and Lepin, Sören and Tian, Jing and El Bergmi Byaz, Laila and
    Stettner, Jochim and Leppin, Christian and Kotova, Anastasiia and et al.}, year={2026}
    }'
  chicago: Scharf, Carl Hendric, Alex Chandraraj, Konrad Dyk, Felix Stebner, Sören
    Lepin, Jing Tian, Laila El Bergmi Byaz, et al. “Role of Defects in Reversible
    Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution
    Electrocatalysts.” <i>ACS Catalysis</i>, 2026. <a href="https://doi.org/10.1021/acscatal.5c08785">https://doi.org/10.1021/acscatal.5c08785</a>.
  ieee: 'C. H. Scharf <i>et al.</i>, “Role of Defects in Reversible Surface Restructuring
    and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts,”
    <i>ACS Catalysis</i>, Art. no. acscatal.5c08785, 2026, doi: <a href="https://doi.org/10.1021/acscatal.5c08785">10.1021/acscatal.5c08785</a>.'
  mla: Scharf, Carl Hendric, et al. “Role of Defects in Reversible Surface Restructuring
    and Activity of Co<sub>3</sub>O<sub>4</sub> Oxygen Evolution Electrocatalysts.”
    <i>ACS Catalysis</i>, acscatal.5c08785, American Chemical Society (ACS), 2026,
    doi:<a href="https://doi.org/10.1021/acscatal.5c08785">10.1021/acscatal.5c08785</a>.
  short: C.H. Scharf, A. Chandraraj, K. Dyk, F. Stebner, S. Lepin, J. Tian, L. El
    Bergmi Byaz, J. Stettner, C. Leppin, A. Kotova, S. Reinke, J. Linnemann, F. Maroun,
    O.M. Magnussen, ACS Catalysis (2026).
date_created: 2026-02-16T14:22:15Z
date_updated: 2026-02-16T14:25:00Z
department:
- _id: '985'
doi: 10.1021/acscatal.5c08785
keyword:
- electrocatalysis
- oxygen evolution reaction
- cobalt spinel
- operando characterization
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://pubs.acs.org/doi/10.1021/acscatal.5c08785
oa: '1'
publication: ACS Catalysis
publication_identifier:
  issn:
  - 2155-5435
  - 2155-5435
publication_status: published
publisher: American Chemical Society (ACS)
quality_controlled: '1'
status: public
title: Role of Defects in Reversible Surface Restructuring and Activity of Co<sub>3</sub>O<sub>4</sub>
  Oxygen Evolution Electrocatalysts
type: journal_article
user_id: '116779'
year: '2026'
...
---
_id: '64189'
abstract:
- lang: ger
  text: Obwohl Förderpläne schon seit den 1990er Jahren umgesetzt werden, es mittlerweile
    recht viele Publikationen mit Beschreibungen des Konzepts Förderplanung gibt und
    diese in allen Bundesländern Deutschlands rechtlich für Schülerinnen und Schüler
    mit einem festgestellten Bedarf an sonderpädagogischer Unterstützung vorgeschrieben
    sind, gibt es recht wenige empirische Studien über die tatsächliche Umsetzung
    in der Praxis. Dieser Beitrag möchte die große Lücke schließen, indem die Praxis
    der Förderplanung an Allgemeinen Schulen und an Förderschulen in Form einer digitalen
    Befragung in NRW in den Blick genommen wird. Insbesondere die Frage, wie und in
    welcher Form Förderpläne erstellt, umgesetzt, evaluiert und fortgeschrieben werden,
    steht im Mittelpunkt dieser Studie. Zentrale Ergebnisse zeigen, dass Förderpläne
    zwar i.d.R. aufgrund der rechtlichen Vorschrift erstellt werden, aber auch für
    die Strukturierung des Förderprozesses fachlich-inhaltlich genutzt werden. Hierbei
    wird deutlich, dass von den Allgemeinen Schulen eher die Grundschulen Förderpläne
    auch im weiteren fachlichen Sinn nutzen. Es wird aber auch deutlich, dass einige
    der befragten Schulen Förderpläne gezielt nutzen, um ein Feststellungsverfahren
    zu eröffnen und Ressourcen zu generieren und Förderpläne damit auch defizitorientierter
    schreiben als im Falle der fachlichen und inhaltlichen Strukturierung von Förderprozessen.
article_type: original
author:
- first_name: Phillip
  full_name: Neumann, Phillip
  id: '95559'
  last_name: Neumann
- first_name: Charline
  full_name: Bunte, Charline
  id: '70772'
  last_name: Bunte
- first_name: Conny
  full_name: Melzer, Conny
  last_name: Melzer
citation:
  ama: Neumann P, Bunte C, Melzer C. Zwischen Förderkonzept und Vorschrift – Eine
    empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen.
    <i>Zeitschrift für Heilpädagogik</i>. 2026;77(2):61-74.
  apa: Neumann, P., Bunte, C., &#38; Melzer, C. (2026). Zwischen Förderkonzept und
    Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen in
    Nordrhein-Westfalen. <i>Zeitschrift für Heilpädagogik</i>, <i>77</i>(2), 61–74.
  bibtex: '@article{Neumann_Bunte_Melzer_2026, title={Zwischen Förderkonzept und Vorschrift
    – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen},
    volume={77}, number={2}, journal={Zeitschrift für Heilpädagogik}, author={Neumann,
    Phillip and Bunte, Charline and Melzer, Conny}, year={2026}, pages={61–74} }'
  chicago: 'Neumann, Phillip, Charline Bunte, and Conny Melzer. “Zwischen Förderkonzept
    und Vorschrift – Eine empirische Studie zur Praxis der Förderplanung an Schulen
    in Nordrhein-Westfalen.” <i>Zeitschrift für Heilpädagogik</i> 77, no. 2 (2026):
    61–74.'
  ieee: P. Neumann, C. Bunte, and C. Melzer, “Zwischen Förderkonzept und Vorschrift
    – Eine empirische Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen,”
    <i>Zeitschrift für Heilpädagogik</i>, vol. 77, no. 2, pp. 61–74, 2026.
  mla: Neumann, Phillip, et al. “Zwischen Förderkonzept und Vorschrift – Eine empirische
    Studie zur Praxis der Förderplanung an Schulen in Nordrhein-Westfalen.” <i>Zeitschrift
    für Heilpädagogik</i>, vol. 77, no. 2, 2026, pp. 61–74.
  short: P. Neumann, C. Bunte, C. Melzer, Zeitschrift für Heilpädagogik 77 (2026)
    61–74.
date_created: 2026-02-17T20:36:44Z
date_updated: 2026-02-18T08:46:36Z
ddc:
- '370'
department:
- _id: '479'
file:
- access_level: open_access
  content_type: application/pdf
  creator: pneu
  date_created: 2026-02-18T08:44:45Z
  date_updated: 2026-02-18T08:46:35Z
  file_id: '64190'
  file_name: zfh_02.2026_neumann.pdf
  file_size: 871882
  relation: main_file
file_date_updated: 2026-02-18T08:46:35Z
has_accepted_license: '1'
intvolume: '        77'
issue: '2'
keyword:
- Sonderpädagogik
- Inklusion
- Sonderpädagogische Förderung
- Förderplanung
- Förderpläne
- Kooperation
language:
- iso: ger
oa: '1'
page: 61-74
publication: Zeitschrift für Heilpädagogik
publication_identifier:
  issn:
  - 0513-9066
publication_status: published
status: public
title: Zwischen Förderkonzept und Vorschrift – Eine empirische Studie zur Praxis der
  Förderplanung an Schulen in Nordrhein-Westfalen
type: journal_article
user_id: '95559'
volume: 77
year: '2026'
...
---
_id: '64566'
abstract:
- lang: eng
  text: 'Censorship is employed by many governments and ISPs worldwide, with an increasing
    trend in recent years. One of the most censored protocols is DNS: censors target
    unencrypted and encrypted DNS to prevent clients from resolving the domain name
    of unwanted websites. Despite much research on DNS censorship, only a few tools
    can circumvent it.To support users affected by DNS censorship, we present DPYProxy-DNS,
    a DNS resolver that automatically detects and employs a working DNS censorship
    circumvention. We demonstrate the effectiveness of DPYProxy-DNS by automatically
    circumventing DNS censorship in China and Iran and analyzing DNS censorship mechanisms
    in these countries. Our analyses re veal that DNS censorship in Iran is ineffective
    against encrypted DNS. In China, DPYProxy-DNS revealed two consistently working
    circumvention techniques for unencrypted DNS: TCP segmentation for DNS over TCP
    and ignoring DNS responses injected by the Great Firewall of China (GFW). Our
    findings reveal varying levels of DNS censorship across different countries, underscoring
    the importance of the automated circumvention approach we provide with DPYProxy-DNS.'
author:
- first_name: Felix
  full_name: Lange, Felix
  id: '67893'
  last_name: Lange
- first_name: Niklas
  full_name: Niere, Niklas
  id: '63563'
  last_name: Niere
- first_name: Juraj
  full_name: Somorovsky, Juraj
  id: '83504'
  last_name: Somorovsky
  orcid: 0000-0002-3593-7720
citation:
  ama: 'Lange F, Niere N, Somorovsky J. Towards Automated DNS Censorship Circumvention.
    In: ; 2026.'
  apa: Lange, F., Niere, N., &#38; Somorovsky, J. (2026). <i>Towards Automated DNS
    Censorship Circumvention</i>. Free and Open Communications on the Internet, Virtual.
  bibtex: '@inproceedings{Lange_Niere_Somorovsky_2026, title={Towards Automated DNS
    Censorship Circumvention}, author={Lange, Felix and Niere, Niklas and Somorovsky,
    Juraj}, year={2026} }'
  chicago: Lange, Felix, Niklas Niere, and Juraj Somorovsky. “Towards Automated DNS
    Censorship Circumvention,” 2026.
  ieee: F. Lange, N. Niere, and J. Somorovsky, “Towards Automated DNS Censorship Circumvention,”
    presented at the Free and Open Communications on the Internet, Virtual, 2026.
  mla: Lange, Felix, et al. <i>Towards Automated DNS Censorship Circumvention</i>.
    2026.
  short: 'F. Lange, N. Niere, J. Somorovsky, in: 2026.'
conference:
  end_date: 2026-02-19
  location: Virtual
  name: Free and Open Communications on the Internet
  start_date: 2026-02-19
date_created: 2026-02-20T14:35:34Z
date_updated: 2026-02-21T10:20:16Z
ddc:
- '006'
file:
- access_level: open_access
  content_type: application/pdf
  creator: nniklas
  date_created: 2026-02-20T14:34:05Z
  date_updated: 2026-02-21T10:20:16Z
  file_id: '64568'
  file_name: foci-2026-0001.pdf
  file_size: 775133
  relation: main_file
file_date_updated: 2026-02-21T10:20:16Z
has_accepted_license: '1'
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://www.petsymposium.org/foci/2026/foci-2026-0001.pdf
oa: '1'
status: public
title: Towards Automated DNS Censorship Circumvention
type: conference
user_id: '63563'
year: '2026'
...
---
_id: '63831'
author:
- first_name: Orlando
  full_name: Orlando Massopo
  id: '98419'
  last_name: Massopo
citation:
  ama: Massopo O. New Quick And Easy Publication - Will be edited by LibreCat team.
    <i>Quick And Easy Journal Title</i>. Published online 2026.
  apa: Massopo, O. (2026). New Quick And Easy Publication - Will be edited by LibreCat
    team. <i>Quick And Easy Journal Title</i>.
  bibtex: '@article{Massopo_2026, title={New Quick And Easy Publication - Will be
    edited by LibreCat team}, journal={Quick And Easy Journal Title}, author={Massopo,
    Orlando}, year={2026} }'
  chicago: Massopo, Orlando. “New Quick And Easy Publication - Will Be Edited by LibreCat
    Team.” <i>Quick And Easy Journal Title</i>, 2026.
  ieee: O. Massopo, “New Quick And Easy Publication - Will be edited by LibreCat team,”
    <i>Quick And Easy Journal Title</i>, 2026.
  mla: Massopo, Orlando. “New Quick And Easy Publication - Will Be Edited by LibreCat
    Team.” <i>Quick And Easy Journal Title</i>, 2026.
  short: O. Massopo, Quick And Easy Journal Title (2026).
date_created: 2026-02-02T11:44:15Z
date_updated: 2026-02-25T07:47:24Z
file:
- access_level: open_access
  content_type: application/pdf
  creator: massopo
  date_created: 2026-02-02T11:43:49Z
  date_updated: 2026-02-02T11:43:49Z
  file_id: '63832'
  file_name: 1-s2.0-S0032591025013877-main.pdf
  file_size: 10512045
  relation: main_file
file_date_updated: 2026-02-02T11:43:49Z
has_accepted_license: 1
oa: '1'
publication: Quick And Easy Journal Title
status: public
title: New Quick And Easy Publication - Will be edited by LibreCat team
type: journal_article
user_id: '98419'
year: '2026'
...
