Publikationen

2021

• Entrepreneurship Education als Beitrag zur Weiterung der Horizonte

  Ebbers, I. (2021). Entrepreneurship Education als Beitrag zur Weiterung der Horizonte.

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  [... Der Beitrag] verfolgt die Frage, wie eine Entrepreneurship Education, verstanden als Erziehung zum unternehmerisches Denken und Handeln, im Rahmen allgemein-bildender Beschulung und mit dem Ziel einer allgemeinbildenden Wirksamkeit so angelegt werden kann, dass sie einen Beitrag zur Horizontweitung der Lernenden leisten kann. Um diese Frage beantworten zu können, soll im weiteren Verlauf der Bildungsbegriff nach Klafki genutzt werden. Er bezieht sich hier im Wesentlichen auf vier Aufgaben der Bildung, welche im Folgenden vor dem Hintergrund der hier gemeinten Entrepreneurship Education genauer betrachtet werden sollen. (DIPF/Orig.).

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  • Abteilung/Einrichtung

    • Jackstädt-Zentrum Flensburg (JZF)

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  • 2021
  • Miscellaneous
  • • Ilona Ebbers

• Towards evidence-based decision-making for identification and usage of assets in composite software: A research roadmap

  Wohlin, C., Papatheocharous, E., Carlson, J., Petersen, K., egroth, E. A., Axelsson, J., … others,. (2021). Towards evidence-based decision-making for identification and usage of assets in composite software: A research roadmap. Journal of Software: Evolution and Process, 33, e2345.

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  • Personenseiten

    • Petersen, Kai

  • Abteilung/Einrichtung

    • FLAIR - Flensburg Artificial Intelligence Research

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  • 2021
  • Journal Article
  • • Claes Wohlin
    • Efi Papatheocharous
    • Jan Carlson
    • Kai Petersen
    • Emil egroth
    • Jakob Axelsson
    • Deepika Badampudi
    • Markus Borg
    • Antonio Cicchetti
    • Federicio Ciccozzi
    • others

• C# für Newcomer

  Cordts, S., & Nasutta, M. (2021). C# für Newcomer. mana-Buch Verlag.

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  • Fachbereich

    • Fachbereich 4: Wirtschaft

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  • 2021
  • Book
  • • Sönke Cordts
    • Maren Nasutta

• Influence of Continuous Provision of Synthetic Inertia on the Mechanical Loads of a Wind Turbine

  Gloe, A., Jauch, C., Craciun, B., Zanter, A., & Winkelmann, J. (2021). Influence of Continuous Provision of Synthetic Inertia on the Mechanical Loads of a Wind Turbine. Energies, 14(16), 5185. http://doi.org/10.3390/en14165185

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  In many electrical grids, the share of renewable energy generation increases. As these generators are typically connected to the grid via inverters, the level of grid inertia decreases. Such grids may therefore suffer from high rates of change of frequency during power imbalances. Modern wind turbines can help in controlling the frequency in such grids by providing synthetic inertia. A controller to provide synthetic inertia with wind turbines was developed at the Wind Energy Technology Institute in collaboration with Suzlon Energy. For this controller the influence of providing synthetic inertia on the mechanical loads of the wind turbine is assessed for different grid frequency scenarios. Such a scenario-based load analysis has not been published before, especially as the scenarios are derived from real measurements. The effect of the loads strongly depends on the analyzed grid frequency behavior. Ten months of high quality grid frequency measurements of the Indian grid are analyzed in order to derive inputs for the load calculation. Different types of grid frequency abnormities are identified and categorized with respect to their severity. Based on the observed occurrences of the grid frequency abnormities, realistic scenarios for the load calculations are chosen. The load calculations are performed for a state-of-the-art Suzlon wind turbine generator. The load increases caused by the supply of synthetic inertia are calculated for individual components assuming an otherwise undisturbed power production of the wind turbine in turbulent wind. Furthermore, a hardware-in-the-loop test bench is used to show how the measured grid frequencies are actually perceived by the control system of a typical wind turbine. The original frequency data were recorded with high quality measurement equipment, which is faster and more accurate than a multi-function relay, often used in wind turbines. For exemplary time traces, the effect of the reduced measurement accuracy on the reaction of the wind turbine is shown. This aspect has not been investigated in the literature yet. The results show that wind turbines can provide synthetic inertia without a considerable effect on the lifetime of the wind turbine. However, there are still problems with providing synthetic inertia reliably at high power operating points, which have to be solved.

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  • Personenseiten

    • Gloe, Arne
    • Jauch, Clemens

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Journal Article
  • • Arne Gloe
    • Prof. Dr. Clemens Jauch
    • B. Craciun
    • Arvid Zanter
    • J. Winkelmann
  • • WETI

• Software-in-the-Loop Simulation of a Gas-Engine for the Design and Testing of a Wind Turbine Emulator

  Rohr, A., & Jauch, C. (2021). Software-in-the-Loop Simulation of a Gas-Engine for the Design and Testing of a Wind Turbine Emulator. Energies, 14. http://doi.org/10.3390/en14102898

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  In order to investigate the grid integration of wind turbines (WT) of various scales and designs, a wind turbine emulator (WTE) is being built in Flensburg within the state-funded project GrinSH. The special feature of this WTE is the use of a large gas engine instead of an electric motor to emulate the behavior of a WT. In order to develop the controls of this innovative WTE and to design the upcoming test runs under safe conditions, a software in the loop model (SILM) was applied. This SILM contained a mathematical model of the wind turbine, mathematical models of the gas engine with an integrated controller, and a model of the generator and frequency converter unit, as well as a preventive modulator of the reference signal (PMRS). The PMRS module converts the reference signal of the emulated WT in such a way that the dynamics of the engine components can be calculated and balanced in advance to enable the required behavior of the entire SILM despite the dynamics of the gas engine. It was found that the PMRS module, developed and tested in this work, increased the ability of the WTE, based on a gas engine, to reproduce the dynamics of a WT.

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    • Rohr, Alexander
    • Jauch, Clemens

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  • 2021
  • Journal Article
  • • Alexander Rohr
    • Prof. Dr. Clemens Jauch

• Ciona intestinalis in the spotlight of metabolomics and microbiomics : New insights into its invasiveness and the biotechnological potential of its associated microbiota

  Utermann, C., Tasdemir, D., & Labes, A. (2021). Ciona intestinalis in the spotlight of metabolomics and microbiomics : New insights into its invasiveness and the biotechnological potential of its associated microbiota (S. Online-Ressource). Kiel: Universitätsbibliothek Kiel.

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  • 2021
  • Book
  • • Caroline Utermann
    • Deniz Tasdemir
    • Antje Labes

• fluprodia (Fluid Property Diagram)

  Witte, F. (2021). fluprodia (Fluid Property Diagram). Zenodo. http://doi.org/10.5281/ZENODO.3795771

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  • Personenseiten

    • Witte, Francesco

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2021
  • Miscellaneous
  • • Francesco Witte
  • • Fluid Property Diagram
    • Thermodynamics
    • Phases
    • Isoline

• Development of a Lightweight Hydraulic-Pneumatic Flywheel System for Wind Turbine Rotors

  Alhrshy, L., Jauch, C., Schaffarczyk, A. P., & Bünning, N. (2021). Development of a Lightweight Hydraulic-Pneumatic Flywheel System for Wind Turbine Rotors. http://doi.org/10.13140/RG.2.2.13569.89447

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  • Personenseiten

    • Alhrshy, Laurence
    • Jauch, Clemens

  • Abteilung/Einrichtung

    • Wind Energy Technology Institute

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  • 2021
  • Report
  • • Laurence Alhrshy
    • Prof. Dr. Clemens Jauch
    • A. Schaffarczyk
    • N. Bünning
  • • WETI

• Context checklist for industrial software engineering research and practice

  Petersen, K., Carlson, J., Papatheocharous, E., & Wnuk, K. (2021). Context checklist for industrial software engineering research and practice. Computer Standards \& Interfaces, 78, 103541.

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    • Petersen, Kai

  • Abteilung/Einrichtung

    • FLAIR - Flensburg Artificial Intelligence Research

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  • 2021
  • Journal Article
  • • Kai Petersen
    • Jan Carlson
    • Efi Papatheocharous
    • Krzysztof Wnuk

• Automizing the manual link in maritime supply chains? An analysis of twistlock handling automation in container terminals

  Kugler, M., Brandenburg, M., & Limant, S. (2021). Automizing the manual link in maritime supply chains? An analysis of twistlock handling automation in container terminals. Maritime Transport Research, 2, 100017. http://doi.org/https://doi.org/10.1016/j.martra.2021.100017

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  The study at hand elaborates on potential barriers, prerequisites and optimization potentials for the automation of the twistlock handling process in container terminals. A case analysis enlightens latest automation developments of this essential task in container transport. Eight experts from different organizations in maritime logistics and seaport operations were interviewed in a qualitative multiple-case research design. The interviews were evaluated by qualitative-quantitative content analysis with MAXQDA software. Automated twistlock handling systems are hardly implemented, although they represent the missing link between other container handling technology in the automated container transport. The study reveals that most implementation barriers consist of technological issues, followed by economic and strategic barriers. The study identifies implementation strategies and their key success and shows that safety improvements and cost reductions are major benefits of this automation. An innovation framework for this field of automation is conceptualized as scientific contribution. Practical implications include recommendations for relevant stakeholders in container logistics.

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  • Personenseiten

    • Brandenburg, Marcus

  • Fachbereich

    • Fachbereich 4: Wirtschaft
    • Fachbereich 1: Maschinenbau, Verfahrenstechnik und Maritime Technologien

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  • 2021
  • Journal Article
  • • Michael Kugler
    • Marcus Brandenburg
    • Sander Limant
  • • Container logistics
    • Maritime logistics
    • Process automation
    • Twistlock handling
    • case study
    • Expert interviews