This thesis thoroughly studied the techonology of online dielectric loss factor measurement, pointed out the shortcomings of conventional methods, and analyzed the reason for reducing the measurement errors by relative comparison method.

By fundamentals analysis of linearity surveyor of domestic and international and relatively surveyor, design deep-hole linearity surveying system based on relatively surveyor, and study structure and software of that system, for linearity examination have certainly actual significance in deep-hole machining.

Based on the change of their relative comparative advantage during 1993-2001,the article analyzes the structure adjustment between grain and economic crops.

According to the comparative advantage theory in interna-tional trade, the paper elaborates that this joint form of school running is beneficial to the development of worldeducation.

A dynamic incentive model of relative performance evaluation in supply chain;

In order to study the effect of relative performance evaluation on behavior of venture entrepreneur under reputation incentive mechanism of venture capital investment,the product function of venture firms was improved,and dynamic game models were constructed.

This paper analyses the optimal incentive contracts between stockholders and executives under asymmetric information condition through mathematical analytic methods with ability and relative performance evaluation consid- ered.