The thesis based on random fractal theory, utilizing fractional Brownian motion model, using R/S analysis technique and wavelet transform method to estimate Hurst exponent which dep.
基于随机分形理论，采用分数布朗运动模型，应用R/S分析技术和基于小波变换的谱参数估计方法计算地震道信号的赫斯特指数。
A fractal prediction model of sliding friction forces was derived based on the fractal geometry theory. The validity of the model was verified theoretically.
基于分形几何理论，推导出了滑动摩擦力分形预测模型，并从理论上对该模型的正确性进行了分析。
Natural fracture system is a fractal system, and an actual model can be built up by means of fractal theory.
天然裂缝系统是一个分形体系，可用分形理论建立裂缝分布的实际模型。
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