There is significant correlation between physical and mental awareness and physical exercise effect, but exercise time, duration and intensity have different significant correlation.
各种主要慢性病及人们对自身身体和心理感觉的认识与体育锻炼的综合效果有显著相关，但与锻炼次数、时间、强度有不同相关特征。
By using backward difference of space-time intensity correlation function with respect to time delay, the two-dimensional velocity vector of a moving diffuser can be measured.
利用远场时变散斑空-时强度相关函致的有限差商可以测量散射体运动的二维速度矢量。
The specific space-time intensity correlation function of dynamic speckle has been derived and opens out the mechanism of the dynamic speckle modulated by ultrasound in scattering medium.
通过数学运算和近似处理，得到了动态散斑强度涨落的空-时相关函数的解析表达式，从理论上揭示了散斑受超声调制的过程，对散射介质中的声光调制机制做出了新的诠释。
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