This paper discusses the theory of displacement back analysis from analyzing stress field of rock initial place and carrying out regressive calculation of ground stress,illustrates the application of displacement back analysis in engineering through examples,and studies its application prospect,in order to promote its application.

This paper researches the level of visual luminance through the measured value of floodlights luminance of building facade in Shang Hai and Chongqing, and made a diagnosis on people s subjective factor, also made a regression calculation by use the glare index expression.

A unified approach for the recursive computation of weighted generalized inverses;