Publikationen

2004

• "Out-of-equilibrium evolution of quantum fields in the hybrid model with quantum back reaction"

  Baacke, J. ", & Heinen, A. (2004). "Out-of-equilibrium evolution of quantum fields in the hybrid model with quantum back reaction". "Phys. Rev. D", "69", "083523". http://doi.org/"10.1103/PhysRevD.69.083523" (Original work published November 2003)

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  • 2004
  • Journal Article
  • • Jurgen Baacke
    • Andreas Heinen

• "Characterizing inflationary perturbations: The Uniform approximation"

  Habib, S. ", Heinen, A., Heitmann, K., Jungman, G., & Molina-Paris, C. (2004). "Characterizing inflationary perturbations: The Uniform approximation". "Phys. Rev. D", "70", "083507". http://doi.org/"10.1103/PhysRevD.70.083507" (Original work published Juni 2004)

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  • 2004
  • Journal Article
  • • Salman Habib
    • Andreas Heinen
    • Katrin Heitmann
    • Gerard Jungman
    • Carmen" Molina-Paris

• International review of grid connection requirements for wind turbines

  Jauch, C., Sørensen, P., & Bak-Jensen, B. (2004). International review of grid connection requirements for wind turbines. Nordic wind power conference 2004 (NWPC 04). (Original work published März 2004)

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    • Jauch, Clemens

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  • 2004
  • Conference Proceedings
  • • Prof. Dr. Clemens Jauch
    • P. Sørensen
    • B. Bak-Jensen

• Advanced tools for modeling, design and optimization of wind turbine systems

  Jauch, C. (2004). Advanced tools for modeling, design and optimization of wind turbine systems. Nordic wind power conference 2004 (NWPC 04). (Original work published März 2004)

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    • Jauch, Clemens

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  • 2004
  • Conference Proceedings
  • • Prof. Dr. Clemens Jauch

• Current source IGBT-inverter for low inductive synchronous machines

  Hinrichsen, F., Koch, I., & Canders, W.-R. (2004). Current source IGBT-inverter for low inductive synchronous machines. In 2004 IEEE 35th Annual Power Electronics Specialists Conference (IEEE Cat. No.04CH37551) (Bd. 4, S. 2849–2853). Aachen, Germany . http://doi.org/10.1109/PESC.2004.1355285

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  Synchronous machines with air-gap permanent magnet excitation are advantageous in many modern applications. As a result of the construction principle the stator inductivities are often very low. Therefore, common voltage source inverters with sinusoidal output currents are not automatically the best supply solution for these machines. Either load reactors have to be used to smooth the output current or the high du/dt-rates of faster switches produce EMI problems and overvoltages at the machine windings. Investigations have shown that sine-wave machine currents are not the most effective way to feed these drives. This paper presents a novel way to overcome these problems by using a current source IGBT-inverter. The investigated system consists of a pulse-rectifier, a DC-current-link and an inverter with an output capacitor bank to decouple the stator currents from the DC-link. A simple, modular inverter construction is proposed. It makes no use of snubbers and is scalable over a wide power range. Practical experiments to prove the feasibility have been carried out with positive results.

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  • 2004
  • Conference Paper
  • • Frank Hinrichsen
    • I. Koch
    • W.-R. Canders
  • • Insulated gate bipolar transistors
    • Synchronous machines
    • Inverters
    • Stators
    • Air gaps
    • Permanent magnets
    • Low voltage
    • Inductors
    • Switches
    • Electromagnetic interference

• Ubersetzung von XQuery-Ausdrücken nach XSLT-Stylesheets

  Klein, N. (2004). Ubersetzung von XQuery-Ausdrücken nach XSLT-Stylesheets.

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    • Klein, Niklas

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  • 2004
  • Miscellaneous
  • • Niklas Klein
  • • niklas.klein nkleinpub

• Simulation Model of an Active-Stall Fixed-Speed Wind Turbine Controller

  Jauch, C., Hansen, A. D., Sørensen, P., & Blaabjerg, F. (2004). Simulation Model of an Active-Stall Fixed-Speed Wind Turbine Controller. WIND ENGINEERING, 28(2), 19.

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    • Jauch, Clemens

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  • 2004
  • Journal Article
  • • Prof. Dr. Clemens Jauch
    • A. Hansen
    • P. Sørensen
    • F. Blaabjerg

• Richtlinie für den Eignungsnachweis zum Verstärken von Betonbauteilen durch in Schlitze verklebte CFK-Lamellen

  Faber, P. D.-I. T. (2004). Richtlinie für den Eignungsnachweis zum Verstärken von Betonbauteilen durch in Schlitze verklebte CFK-Lamellen.

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    • Faber, Torsten

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  • 2004
  • Report
  • • Prof. Dr.-Ing. Torsten Faber

• Integrating collaborative planning and supply chain optimization for the chemical process industry (I)—methodology

  Berning, G., Brandenburg, M., Gürsoy, K., Kussi, J. S., Mehta, V., & Tölle, F.-J. (2004). Integrating collaborative planning and supply chain optimization for the chemical process industry (I)—methodology. Computers & Chemical Engineering, 28, 913–927. http://doi.org/10.1016/j.compchemeng.2003.09.004

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  We consider a complex scheduling problem in the chemical process industry involving batch production. The application described comprises a network of production plants with interdependent production schedules, multi-stage production at multi-purpose facilities, and chain production. The paper addresses three distinct aspects: (i) a scheduling solution obtained from a genetic algorithm (GA) based optimizer, (ii) a mechanism for collaborative planning among the involved plants, and (iii) a tool for manual updates and schedule changes. The tailor made optimization algorithm simultaneously considers alternative production paths and facility selection as well as product and resource specific parameters such as batch sizes, and setup and cleanup times. The collaborative planning concept allows all the plants to work simultaneously as partners in a supply chain resulting in higher transparency, greater flexibility, and reduced response time as a whole. The user interface supports monitoring production schedules graphically and provides custom-built utilities for manual changes to the production schedule, investigation of various what-if scenarios, and marketing queries.

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    • Brandenburg, Marcus

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  • 2004
  • Journal Article
  • • Guido Berning
    • Marcus Brandenburg
    • Korhan Gürsoy
    • Jürgen Kussi
    • Vipul Mehta
    • Franz-Josef Tölle
  • • Supply chain management
    • Collaborative planning
    • Genetic algorithm
    • Scheduling

• Searching for Deadlocks While Debugging Concurrent Haskell Programs

  Christiansen, J., & Huch, F. (2004). Searching for Deadlocks While Debugging Concurrent Haskell Programs. In Proceedings of the Ninth ACM SIGPLAN International Conference on Functional Programming (S. 28–39). ACM. http://doi.org/10.1145/1016850.1016858

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    • Christiansen, Jan

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2004
  • Conference Paper
  • • Jan Christiansen
    • Frank Huch
  • • concurrent haskell
    • deadlock
    • debugging
    • detecting deadlocks