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  1. No Access

    Article

    Improvement of edge effect of the wavelet time–frequency spectrum: application to the length-of-day series

     The edge effect in the wavelet time–frequency spectrum of a time series is treated. The time series is first extended on both ends by applying a non-linear model, namely the leap-step time series analysis (LS...

    D. Zheng, B. F. Chao, Y. Zhou, N. Yu in Journal of Geodesy (2000)

  2. No Access

    Article

    Contribution of new AAM data source to δLOD excitation

    Data sets of the changes of the length of day (ΔLOD) measured by space geodetic techniques and of the atmospheric angular momentum (AAM) derived from global meteorological data by the National Meteorological ...

    N. Yu, D. Zheng, H. Wu in Journal of Geodesy (1999)

  3. No Access

    Article

    Modeling the micromechanical aspects of composites

    P. K. Liaw, N. Yu in JOM (1996)