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  1. Published

    Ground magnetic effects of the equatorial electrojet simulated by the TIE-GCM driven by TIMED satellite data

    Yamazaki, Y., Richmond, A. D., Maute, A., Wu, Q., Ortland, D. A., Yoshikawa, A., Adimula, I. A., Rabiu, B., Kunitake, M. & Tsugawa, T., 04/2014, In: Journal of Geophysical Research: Space Physics. 119, 4, p. 3150-3161 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  2. Published

    A theory of ionospheric response to upward-propagating tides: electrodynamic effects and tidal mixing effects

    Yamazaki (YY), Y. & Richmond, A., 09/2013, In: Journal of Geophysical Research: Space Physics. 118, 9, p. 5891-5905 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  3. Published

    Solar and lunar ionospheric electrodynamic effects during stratospheric sudden warmings

    Yamazaki (YY), Y., 11/2014, In: Journal of Atmospheric and Solar-Terrestrial Physics. 119, p. 138-146 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  4. Published

    Evidence for stratospheric sudden warming effects on the upper thermosphere derived from satellite orbital decay data during 1967–2013

    Yamazaki (YY), Y., Kosch, M. & Emmert, J., 13/08/2015, In: Geophysical Research Letters. 42, 15, p. 1-9 9 p.

    Research output: Contribution to journalJournal articlepeer-review

  5. Published

    A model of high-latitude thermospheric density

    Yamazaki (YY), Y., Kosch, M. & Sutton, E., 09/2015, In: Journal of Geophysical Research: Space Physics. 120, 9, p. 7903-7917 15 p.

    Research output: Contribution to journalJournal articlepeer-review

  6. Published

    The equatorial electrojet during geomagnetic storms and substorms

    Yamazaki (YY), Y. & Kosch, M., 03/2015, In: Journal of Geophysical Research: Space Physics. 120, 3, p. 2276-2287 12 p.

    Research output: Contribution to journalJournal articlepeer-review

  7. Published

    On the day-to-day variation of the equatorial electrojet during quiet periods

    Yamazaki (YY), Y., Richmond, A., Maute, A., Liu, H., Pedatella, N. & Sassi, F., 08/2014, In: Journal of Geophysical Research: Space Physics. 119, 8, p. 6966-6980 15 p.

    Research output: Contribution to journalJournal article

  8. Published

    A low-cost attack on a Microsoft captcha

    Yan, J. & El Ahmad, A. S., 2008, Proceedings of the 15th ACM conference on Computer and communications security - CCS '08. New York: ACM, p. 543-554 12 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

  9. Published

    Captcha robustness: a security engineering perspective

    Yan, J. & El Ahmad, A. S., 02/2011, In: Computer. 44, 2, p. 54-60 7 p., 5601666.

    Research output: Contribution to journalJournal articlepeer-review

  10. Published

    Usability of CAPTCHAs or usability issues in CAPTCHA design

    Yan, J. & El Ahmad, A. S., 2008, SOUPS 2008 - Proceedings of the 4th Symposium on Usable Privacy and Security. New York: ACM, p. 44-52 9 p.

    Research output: Contribution in Book/Report/Proceedings - With ISBN/ISSNConference contribution/Paperpeer-review

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