variable-difference method

A New Method of Nondestructive Testing and size Classfication for Synthetic Crystal Materials& Heavy Liquid and Variable Temperature Technique

人工晶体材料无损检测与分选的新方法&重液变温法

Variable velocity DMO formula which is analOgous to constant velocity DMO formula and Hale's squeezing DMO is derived from the time-distance equation of CRP gather data-The method is a revised version of constant velocity DMO;

本文从共反射点时距曲线方程出发，导出了类似于常速DMO公式的变速DMO公式（与Hale等称之的squeezingDMO相类似）。

Finally, for complex variable background noise, the adaptive threshold is proposed to improve the constant threshold test method of hypothesis testing to detect the RF signal in low SNR.

最后针对复杂时变背景噪声，提出采用自适应门限以改进恒定门限检验的假设检验方法，在低信噪比下对射频信号进行检测。

By means of the support of data, using the method of multivariable linear regression, we can test the level of significance of the explaining variable.

在有数据支持时，线性多元回归方法，可以检验决策者初步选择的解释变量是否有显著性，也可以用来检验未解释部分的比重，促使寻求其它属性的支持。

Prepared method and radiative properties of a thermochromic variable emittance material thermal activity

热致变色可变发射率材料的制备与辐射特性研究