Fuzzy-stochastic damage increment functional was formulated on the basis of fuzzy attenuation algorithm model by the help of concentrating-damage vector,with which realized was the general expression on unloading model of viscous-elasto-plasto fuzzy-stochastic damage increment functional.

Stratal absorption attenuation model for southeastern Qiong area in South China Sea.;

(2) According to the attenuation model,there was .

A new distance attenuation model for land classification—comprehensive attenuation model was presented in order to improve the accuracy of attenuation distance.

In order to analyze the distributing situation of the residual chlorine density of city water supply network in the entire pipe network,the computing formula of residual chlorine concentration on node is developed,based on the decay model of residual chlorine in pipe and substance conservation law on node.

Mathematic model simulation indicated that mass based transfer model is more appropriate than experiential decay model to explain the results of chamber test.