Steady-state productivity model for fractured gas well andvarying factor single point method for computing open-flow capacity;

Results In the process of gearbox fault diagnosis,the variable-coefficient method effectively prevents the influence that output layer′s error can not be transmitted back to the hidden layers and the WNN loses the ability of learning.

Evaluation of operational reliability for DC converter stations by using variation coefficient method;

The weights of the indices were determined by variation coefficient method,and the level was identified by using confidence rule according to the attribute measure values of single index and multiple indices.

To solve the question of performance evaluation on enterprise incubators,a set of index system is established used to evaluate the performance of enterprise incubators,and to decide the weight of indices by using variation coefficient method.

The objective appraisal method of clustering analysis, variance coefficient, combined with comprehensive appraisal of distance is advanced in the paper.

In this paper,an economic evaluation of land use in Hunan province is given comprehensively through counties with variance coefficient confirming weight value.

In the paper,a coefficients changing method of resulting unary multinomial division is put forward,its application in finding the greatest common factor and deciding whether two unary multinomial are relatively prime are popularized,and the examples are given by the author.