Publikationen

2019

• IEA Wind Task 32: Wind Lidar

  Clifton, A., & Schlipf, D. (2019). IEA Wind Task 32: Wind Lidar. http://doi.org/10.5281/zenodo.3482839 (Original work published 2026)

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    • Schlipf, David

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  • 2019
  • Miscellaneous
  • • Andrew Clifton
    • David Schlipf

• Integration of Flow Temperatures in Unit Commitment Models of Future District Heating Systems

  Boysen, C., Kaldemeyer, C., Hilpert, S., & Tuschy, I. (2019). Integration of Flow Temperatures in Unit Commitment Models of Future District Heating Systems. Energies, 12, 1061. http://doi.org/10.3390/en12061061 (Original work published 2026)

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    • Tuschy, Ilja

  • Fachbereich

    • Fachbereich 2: Energy and Life Science

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  • 2019
  • Journal Article
  • • Cynthia Boysen
    • Cord Kaldemeyer
    • Simon Hilpert
    • Ilja Tuschy

• Wind turbine controller to mitigate structural loads on a floating wind turbine platform

  Fleming, P. A., Peiffer, A., & Schlipf, D. (2019). Wind turbine controller to mitigate structural loads on a floating wind turbine platform. Journal of Offshore Mechanics and Arctic Engineering, 141. http://doi.org/10.1115/1.4042938 (Original work published 2026)

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    • Schlipf, David

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  • 2019
  • Journal Article
  • • Paul Fleming
    • Antoine Peiffer
    • David Schlipf

• Method and system for contextualizing and targeting inquiries in remote meetings

  Wallbaum, T., Girgensohn, A., Wilcox, L. D., Shipman, F. M. , III, & Susanne, B.-W. (2019). Method and system for contextualizing and targeting inquiries in remote meetings.

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    • Wallbaum, Torben

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    • Fachbereich 3: Information und Kommunikation

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  • 2019
  • Miscellaneous
  • • Torben Wallbaum
    • Andreas Girgensohn
    • Lynn Wilcox
    • Frank Shipman III
    • BOLL-WESTERMANN Susanne

• Minute-scale forecasting of wind power results from the collaborative workshop of IEA wind task 32 and 36

  Würth, I., Valldecabres, L., Simon, E., Möhrlen, C., Uzunoğlu, B., Gilbert, C., … Kaifel, A. (2019). Minute-scale forecasting of wind power results from the collaborative workshop of IEA wind task 32 and 36. Energies, 12, 712. http://doi.org/10.3390/en12040712 (Original work published 2026)

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    • Schlipf, David

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  • 2019
  • Journal Article
  • • Ines Würth
    • Laura Valldecabres
    • Elliot Simon
    • Corinna Möhrlen
    • Bahri Uzunoğlu
    • Ciaran Gilbert
    • Gregor Giebel
    • David Schlipf
    • Anton Kaifel

• Set-Point-Fading for Wind Turbine Control

  Schlipf, D. (2019). Set-Point-Fading for Wind Turbine Control. http://doi.org/10.5281/zenodo.5567358 (Original work published 2026)

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    • Schlipf, David

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  • 2019
  • Miscellaneous
  • • David Schlipf

• Comments on “verifiable outsourced attribute-based signature scheme”

  Uzunkol, O. (2019). Comments on “verifiable outsourced attribute-based signature scheme”. Multimedia Tools and Applications , 78(9), 11735–11742,. http://doi.org/10.1007/s11042-018-6725-7

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  Ren and Jiang recently published a “verifiable outsourced attribute-based signature scheme” in Multimedia Tools and Applications. In this note, we first provide two attacks on the verifiability of the semi-signatures of this scheme by showing that a malicious signing-cloud service provider (S-CSP) can always cheat the signer unlike the authors’ claim. Moreover, one of these attacks also implies that an untrusted S-CSP can always forge signatures contrary to the claimed unforgeability against chosen message attacks. Therefore, this scheme unfortunately does not satisfy the main security properties for a delegated signature scheme.

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    • Uzunkol, Osmanbey

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2019
  • Journal Article
  • • Osmanbey Uzunkol

• Secure delegation of group exponentiations: Efficient and fully verifiable schemes with two servers

  Moritz, S., & Uzunkol, O. (2019). Secure delegation of group exponentiations: Efficient and fully verifiable schemes with two servers. Security and Privacy, n/a, e70. http://doi.org/https://doi.org/10.1002/spy2.70 (Original work published 2019)

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  Abstract Recent interactions between cloud service providers and mobile resource-constrained devices have increased the interest on the delegation of expensive computations to powerful external server providers. At the same time, security and verifiability of the delegated computation are challenging though highly demanded requirements for various application scenarios. Many security solutions using advanced cryptographic technologies require a large number of highly expensive group exponentiations (GEs). In this paper, we address the problems regarding secure and verifiable delegation of GEs. We first analyze two delegation schemes for GEs both introduced recently in Cluster Computing by Fu et al with the claim that they both provide full verifiability. Particularly, we show that the first scheme is only verifiable with a probability at most 2/3, and the second scheme is totally unverifiable. Then, we propose a secure, efficient and fully verifiable delegation scheme InvDel for a GE using two servers, where one of which is malicious. With InvDel the delegator does not require computations of any group inversions (GIs) while providing full verifiability. Then, we extend InvDel to SimInvDel which is the first, efficient and secure delegation scheme for n-simultaneous GEs achieving full verifiability for n > 1. Secondly, we give implementation results of InvDel and SimInvDel using an Android application together with a comprehensive efficiency analysis of computation and communication with the previous schemes. For instance, when the required CPU costs for a single GE are compared with a 4092-bit modulus, InvDel is more than 220-times (resp. more than two times) more efficient than the local computation (resp. using a previous fully verifiable scheme proposed in the literature). Finally, we also utilize InvDel and SimInvDel to speed-up the verification of Schnorr s signature and Cramer-Shoup encryption schemes.

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    • Uzunkol, Osmanbey

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    • Fachbereich 3: Information und Kommunikation

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  • 2019
  • Journal Article
  • • Stephan Moritz
    • Osmanbey Uzunkol
  • • cloud security
    • lightweight cryptography for mobile security
    • secure delegation
    • verifiable computation

• Flexible hydropneumatische Kolbenspeicher aus kohlefaserverstärktem Kunststoff zum Einsatz in Rotorblätter von Windenergieanlagen

  Jauch, C., Alhrshy, L., & Kloft, P. (2019). Flexible hydropneumatische Kolbenspeicher aus kohlefaserverstärktem Kunststoff zum Einsatz in Rotorblätter von Windenergieanlagen. Ingenieurspiegel , 4, 3. (Original work published November 2019)

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    • Jauch, Clemens
    • Alhrshy, Laurence

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  • 2019
  • Magazine Article
  • • Prof. Dr. Clemens Jauch
    • Laurence Alhrshy
    • P. Kloft
  • • WETI

• Lingua controllata e traduzione (automatica) nella comunicazione tecnica

  Wittkowsky, M. (2019). Lingua controllata e traduzione (automatica) nella comunicazione tecnica. In MACHINE TRANSLATION - COME USARLA IN MODO PROFESSIONALE (S. 8). Aracne editrice. http://doi.org/10.4399/97888255287495 (Original work published November 2019)

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  • Personenseiten

    • Wittkowsky, Marion

  • Abteilung/Einrichtung

    • CIVU – Center for Interaction, Visualization and Usability

  • Fachbereich

    • Fachbereich 3: Information und Kommunikation

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  • 2019
  • Book Chapter
  • • Marion Wittkowsky