Home > Research > Publications & Outputs
  1. 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

  2. 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

  3. 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

  4. 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

  5. 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

  6. 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

  7. Published

    A note on proactive password checking

    Yan, J., 2001, New Security Paradigms Workshop: proceedings : September 10th-13th, 2001, Cloudcroft, NM, USA . New York: ACM, p. 127-135 9 p. (Proceedings of the 2001 New Security Paradigms Workshop).

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

  8. Published

    Security design in human computation games (transcript of discussion)

    Yan, J., 2014, Security Protocols XVIII: 18th International Workshop, Cambridge, UK, March 24-26, 2010, Revised Selected Papers. Christianson, B. & Malcolm, J. (eds.). Berlin: Springer Verlag, p. 154-160 7 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 7061).

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

  9. Published

    Towards new security primitives based on hard ai problems (Transcript of discussion)

    Yan, J., 2013, Security Protocols XXI: 21st International Workshop, Cambridge, UK, March 19-20, 2013, Revised Selected Papers. Christianson, B., Malcolm, J., Stajano, F., Anderson, J. & Bonneau, J. (eds.). Berlin: Springer Verlag, p. 11-18 8 p. (Lecture Notes in Computer Science (including subseries Lecture Notes in Artificial Intelligence and Lecture Notes in Bioinformatics); vol. 8263 ).

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

  10. Published

    System security research at Newcastle

    Yan, J., 2011, Proceedings - 1st SysSec Workshop, SysSec 2011. IEEE, p. 94-95 2 p. 6092774

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

Back to top