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    Article

    Statistical analysis on energy field of seismicity in Ningxia and its neighborhood region

    The random function theory is used in the paper. Taking the regional seismicity energy as the random function of space and time, the features of small seismicity field in Ningxia and its neighborhood region ar...

    Ming-zhi Yang, Wei-ming Zhao in Acta Seismologica Sinica (2004)

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    Article

    Application of non-stationary Poisson model prediction on seismic belts in northwestern of China

    Ying Li, Wei-ming Zhao, Wen-xiao Zhang, He-qing Ma, Xue-mei Ren in Acta Seismologica Sinica (2003)

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    Article

    Characteristics of coda Q-value in the midnorthern part of Ningxia

    On the basis of previous studies, this paper, in studying the coda Q-value of near shocks, has proposed using the sampling depth to describe the effect of lapse time on the Q-value, and has investigated the depen...

    Wei-ming Zhao, Ming-zhi Yang, Yan-long **, Wen-jun Xu in Acta Seismologica Sinica (2000)

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    Article

    Inversion of 3-D crustal P-wave velocity structure in Ningxia and its neighborhood by using direct, reflected and refracted waves

    In this paper, simultaneous inversions for hypocentres and three-dimensional (3-D) crustral P-wave velocity structure of Ningxia and its neighborhood are performed, by using the data of direct P wave, reflecte...

    Yan-Long **, Ming-Zhi Yang, Wei-Ming Zhao, **ng-Jue Shi in Acta Seismologica Sinica (1999)

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    Article

    An improvement on the method of the pattern recognition ICHAM and its application

    In this paper, an improvement is made on the method of the pattern recognition ICHAM. It is proposed to use the iterative centre as the Hamming kernel. And new weight coefficient calculating the Euclidean dist...

    Wei-Ming Zhao, Yan-Long ** in Acta Seismologica Sinica (1994)