Variability,interaction and self-amendment are the three features of Contemporary Chinese,which requires a dynamic research rather than a static one.

This paper gives an enumeration formula W(n) about nonisomorphic and selfcomplementary tournaments,and corrects a falsity on existence of selfcomplementary tournaments.

Intelligent controller of power-factor automatic compensation based on PIC single chip;

Study of automatic compensation on the braking device of Down Belt Conveyor;

Generally support the water pressure adjustment and automatic compensation that strength can't according to mine well downfeed systems.

In the Presented paper the uncertainty caused by measure principle of the cylinder method for measuring the thermal conductivity of thermo-insulating materials with heating of self-compensation is analyzed with a numerical method.

A self-compensation method is proposed based on digital closed-loop control technology that eliminates the influences of the factors such as working conditions,circuitry parameters and so on.

Based on a self-compensation model involving the deep donor MGaVN,we calculate the hole concentration as a function of magnesium doping concentration NA,w.