Some empirical formulas of seismicity and fractal nature of time, space and source dimension are derived based on a simple hierarchy model of seismicity in this paper.
文章从一个简单的地震活动层次模型出发，推导地震活动性中几个经验公式以及地震活动的时、空和震源大小分维性质。
The fractal structure research of space-time distribution of earthquakes provides some new knowledge to this subject.
地震时空分布的分形结构研究为此提供了新的科学认识。
Further, through the phase space reconstruction of relating time series and fractal analysis, discussion to nonlinear evolution of the system with varying heating power is delivered.
通过对系统相关时序的相空间重构与分维分析，探讨了系统随加热功率变化的非线性演化规律。
The space-time distribution of earthquakes is usually multi-fractal Set.
地震时空分布通常是多重分形集。
Based on the fractal theory and method, the reduction of dimension value before strong earthquake occurrence for self-similar earthquake distribution in time and space has been discussed.
基于分维理论和方法，讨论了自相似的地震时空分布的分维和强震前的降维现象。
Based on the fractal theory and method, the reduction of dimension value before strong earthquake occurrence for self-similar earthquake distribution in time and space has been discussed.
基于分维理论和方法，讨论了自相似的地震时空分布的分维和强震前的降维现象。
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