Publikationen

2020

• Simulation of Intraoperative Fluoroscopy in an Immersive Virtual Operating Room to Enhance Training Opportunities and Increase Radiation Awareness

  Teistler, M., Süncksen, M., Reinhold, S., Bott, O., & Dresing, K. (2020). Simulation of Intraoperative Fluoroscopy in an Immersive Virtual Operating Room to Enhance Training Opportunities and Increase Radiation Awareness. In 106th Scientific Assembly and Annual Meeting (RSNA 2020). Chicago, IL, USA: Radiological Society of North America. Abgerufen von https://archive.rsna.org/2020/20015344.html (Original work published Dezember 2020)

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    • Teistler, Michael

  • Forschungsprojekt

    • Computerbasierte Ausbildung in der Medizinischen Bildgebung durch virtuelle und spielbasierte Lernumgebungen

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Profilbereich

    • Informatik und Gestaltung

  • Forschungsfeld

    • Digitalisierung im Gesundheitswesen
    • Human-Computer-Interaction

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Conference Paper
  • • Michael Teistler
    • Matthias Süncksen
    • Sascha Reinhold
    • Oliver Bott
    • Klaus Dresing

• Spotlight on Women in Tech: Fostering an Inclusive Workforce when Exploring and Exploiting Digital Innovation Potentials

  Schmitt, F., Sundermeier, J., Bohn, N., & Sasso, A. M. (2020). Spotlight on Women in Tech: Fostering an Inclusive Workforce when Exploring and Exploiting Digital Innovation Potentials. In .

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  • 2020
  • Conference Paper
  • • Franziska Schmitt
    • Janina Sundermeier
    • Nicolai Bohn
    • Ariane Sasso

• Das Physikalische Optimum als Bewertungsmethode für Sauerstoffherstellungsverfahren

  Weber, S., & Volta, D. (2020). Das Physikalische Optimum als Bewertungsmethode für Sauerstoffherstellungsverfahren. Web: VDI-Expertenforum - Effizienzsteigerungen durch grenzwertorientierte Kennzahlen in der Praxis. (Original work published September 2020)

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    • Rohm, Samanta Alena
    • Volta, Dirk

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2020
  • Presentation
  • • Samanta Weber
    • Dirk Volta
  • • Energieeffizienz

• Bewertung der Drucklufterzeugung durch das Physikalische Optimum

  Weber, S., & Volta, D. (2020). Bewertung der Drucklufterzeugung durch das Physikalische Optimum. Web-Konferenz: VDI-Expertenforum - Effizienzsteigerungen durch grenzwertorientierte Kennzahlen in der Praxis. (Original work published September 2020)

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    • Rohm, Samanta Alena

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2020
  • Presentation
  • • Samanta Weber
    • Dirk Volta
  • • Energieeffizienz

• Higgs-mass predictions in the MSSM and beyond

  Slavich, P., Heinemeyer, S., Bagnaschi, E., Bahl, H., Goodsell, M., Haber, H. E., … Staub, F. (2020). Higgs-mass predictions in the MSSM and beyond. The European Physical Journal C, 81, 71. http://doi.org/10.1140/epjc/s10052-021-09198-2 (Original work published Mai 2022)

  Abstract

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  Predictions for the Higgs masses are a distinctive feature of supersymmetric extensions of the Standard Model, where they play a crucial role in constraining the parameter space. The discovery of a Higgs boson and the remarkably precise measurement of its mass at the LHC have spurred new efforts aimed at improving the accuracy of the theoretical predictions for the Higgs masses in supersymmetric models. The "Precision SUSY Higgs Mass Calculation Initiative" (KUTS) was launched in 2014 to provide a forum for discussions between the different groups involved in these efforts. This report aims to present a comprehensive overview of the current status of Higgs-mass calculations in supersymmetric models, to document the many advances that were achieved in recent years and were discussed during the KUTS meetings, and to outline the prospects for future improvements in these calculations.

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    • Fachbereich 2: Energy and Life Science

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  • 2020
  • Journal Article
  • • Pietro Slavich
    • Sven Heinemeyer
    • Emanuele Bagnaschi
    • Henning Bahl
    • Mark Goodsell
    • Howard Haber
    • Thomas Hahn
    • Robert Harlander
    • Wolfgang Hollik
    • Gabriel Lee
    • Margarete Mühlleitner
    • Sebastian Paßehr
    • Heidi Rzehak
    • Dominik Stöckinger
    • Alexander Voigt
    • Carlos Wagner
    • Georg Weiglein
    • Ben Allanach
    • Thomas Biekötter
    • Sophia Borowka
    • Johannes Braathen
    • Marcela Carena
    • Thi Dao
    • Guiseppe Degrassi
    • Florian Domingo
    • Peter Drechsel
    • Ulrich Ellwanger
    • Martin Gabelmann
    • Ramona Gröber
    • Jonas Klappert
    • Thomas Kwasnitza
    • Daniel Meuser
    • Luminita Mihaila
    • Nick Murphy
    • Kilian Nickel
    • Werner Porod
    • E. Rojas
    • Ivan Sobolev
    • Florian Staub
  • • arXiv
    • Teilchenphysik
    • Higgs

• Determining the Load Inertia Contribution from Different Power Consumer Groups

  Thiesen, H., & Jauch, C. (2020). Determining the Load Inertia Contribution from Different Power Consumer Groups. Energies, 13(7). http://doi.org/10.3390/en13071588 (Original work published April 2020)

  Abstract

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  Power system inertia is a vital part of power system stability. The inertia response within the first seconds after a power imbalance reduces the velocity of which the grid frequency changes. At present, large shares of power system inertia are provided by synchronously rotating masses of conventional power plants. A minor part of power system inertia is supplied by power consumers. The energy system transformation results in an overall decreasing amount of power system inertia. Hence, inertia has to be provided synthetically in future power systems. In depth knowledge about the amount of inertia provided by power consumers is very important for a future application of units supplying synthetic inertia. It strongly promotes the technical efficiency and cost effective application. A blackout in the city of Flensburg allows for a detailed research on the inertia contribution from power consumers. Therefore, power consumer categories are introduced and the inertia contribution is calculated for each category. Overall, the inertia constant for different power consumers is in the range of 0.09 to 4.24 s if inertia constant calculations are based on the power demand. If inertia constant calculations are based on the apparent generator power, the load inertia constant is in the range of 0.01 to 0.19 s.

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    • Thiesen, Henning
    • Jauch, Clemens

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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  • 2020
  • Journal Article
  • • Henning Thiesen
    • Prof. Dr. Clemens Jauch

• Simulation of scattered radiation during intraoperative imaging in a virtual reality learning environment

  Süncksen, M., Bott, O., Dresing, K., & Teistler, M. (2020). Simulation of scattered radiation during intraoperative imaging in a virtual reality learning environment. International Journal of Computer Assisted Radiology and Surgery , 15, 691–701. http://doi.org/10.1007/s11548-020-02126-x (Original work published April 2020)

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  Purpose Scattered radiation, which occurs when using a C-arm for intraoperative radiography, can be better understood through interactive visualization. We developed a virtual reality (VR) approach for the simulation of scattered radiation (SSR) as part of a C-arm training system. In VR, it is important to avoid cyber sickness, which is often caused by increased latency between head motion and image presentation inside the head-mounted display. As the latency requirement interferes with the computational complexity of the SSR, the goal has been to maintain a low latency during the simultaneous computation of the SSR on moderate-cost consumer hardware. Methods For use with a VR C-arm simulator, a CUDA-based Monte Carlo SSR has been improved to utilize GPU resources unused by the VR image generation. Resulting SSR data are visualized through volume rendering with pseudo-colored scattered radiation superimposed onto the virtual operating room. The resulting interactive VR–SSR environment was evaluated with operating room personnel (ORP) and surgeons using questionnaires. Results Depending on the imaged body part and computation parameters, the required computation time to complete one SSR run was between 1.6 and 4.2 s (ankle) and between 7.9 and 14.9 s (thigh), and VR frame times from 11 to 12 ms (95th percentile). The system was evaluated with ORP (n = 46) and surgeons (n = 25). The median of professional C-arm experience was 5 (range 1 to 34) years (ORP) and 12.5 (range 2 to 48) years (surgeons), respectively. The demonstrated prototype was found useful by 78% of ORP and 88% of the surgeons. On a Likert scale, more than 90% of both groups “agreed fully” that the presented way of visualizing SSR in VR helps understanding intraoperative exposure to scattered radiation. Conclusions Leveraging off-the-shelf computer equipment, the feasibility of SSR and VR for interactive training has been demonstrated. Evaluation participants showed a high interest for the presented approach. Feedback suggests that the visualization experienced by the users helps understanding radiation hazards in the operating room.

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    • Teistler, Michael

  • Forschungsprojekt

    • Computerbasierte Ausbildung in der Medizinischen Bildgebung durch virtuelle und spielbasierte Lernumgebungen

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Profilbereich

    • Informatik und Gestaltung

  • Forschungsfeld

    • Digitalisierung im Gesundheitswesen
    • Human-Computer-Interaction

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Journal Article
  • • Matthias Süncksen
    • Oliver Bott
    • Klaus Dresing
    • Michael Teistler

• Not up to Standard! Creating a Global Assessment Framework and Universal Proficiency Test for Maritime English.

  Noble, A., Van Son, L., & John, P. (2020). Not up to Standard! Creating a Global Assessment Framework and Universal Proficiency Test for Maritime English. In Strategies and Analyses of Language and Communication in Multilingual and International Contexts (S. 10). Cambridge (UK): Cambridge Scholars Publishing. Abgerufen von https://www.cambridgescholars.com/product/978-1-5275-4324-9 (Original work published Februar 2020)

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  • Personenseiten

    • John, Peter

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Book Chapter
  • • Alison Noble
    • Ludwina Van Son
    • Peter John

• First Eigenmodes Simulation Model of a Wind Turbine - for Control Algorithm Design

  Jauch, C. (2020). First Eigenmodes Simulation Model of a Wind Turbine - for Control Algorithm Design. http://doi.org/10.13140/RG.2.2.17192.19204

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    • Jauch, Clemens

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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  • 2020
  • Report
  • • Prof. Dr. Clemens Jauch
  • • WETI

• A gender issue? - How touch-based interactions with dynamic spatial objects support performance and motivation of secondary school students

  Zander, S., Montag, M., Wetzel, S., & Bertel, S. (2020). A gender issue? - How touch-based interactions with dynamic spatial objects support performance and motivation of secondary school students. Computers & Education, 143, 103677. http://doi.org/https://doi.org/10.1016/j.compedu.2019.103677

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  Mobile devices are seen to incorporate characteristics which can support learning and problem solving in general and specific abilities, such as spatial ones (e.g. mental rotation). Central relevant characteristics of these devices are the availability of multiple representations (e.g. dynamic and static) and the direct interaction via touch, pointing and tracing with displayed information. The primary aim of the present study was to investigate the effectiveness of direct interactive, dynamic interactions with spatial tasks on mobile devices as compared to purely static, non-interactive versions of the same tasks. We expected that dynamic, interactive tasks support mental processes while solving spatial tasks would be especially helpful for learners with difficulties in mental rotation and low expectancies regarding their spatial abilities. Therefore, the second focus of the study was to examine whether the expected beneficial effects of dynamic interactions were equally beneficial for both genders. This was motivated by previous studies that revealed gender differences in performance and motivational beliefs regarding spatial tasks to the disadvantage of females. We used a mixed within-between subject design with presentation format (static vs. dynamic) and gender (female vs. male) as factors and success rate, mental effort, intrinsic motivation, and frustration as dependent variables. The study was conducted in four classes (7th grade, N = 46) in two secondary schools. To test gender related pre-assumptions, spatial abilities and motivation were assessed before solving the actual rotation tasks. A MANOVA with single-comparison follow-up tests revealed increased success rates and decreased mental effort for both genders in the dynamic condition, whereas beneficial effects for intrinsic motivation and frustration were restricted to female students. Process data for rotation behavior was registered for dynamic tasks: an analysis hinted at more exploratory ways of solving spatial tasks for females and at more goal-oriented approaches for male students.

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  • Personenseiten

    • Bertel, Sven

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2020
  • Journal Article
  • • Steffi Zander
    • Michael Montag
    • Stefanie Wetzel
    • Sven Bertel
  • • Touch interaction
    • Dynamic representations
    • Spatial abilities
    • Gender differences
    • Motivation