Objective To evaluate the level of T-lymphocyte subpopulations in blood of senior citizen with acute coronary syndromes(ACS) when the disease occurred.

A new method for SAPWM in direct current control of PWM rectifier;

Comment on modification and perfection of capital system of Chinese company;

A superficial talk about the experience and lession of construction of the Chengnan watersupply limned company in Rongxian county;

Analysing the essence of the managing mode company plus farmer household for the Deda company;

Problems and countermeasures of the board of directors in the corporation administrative structure;

Design/Manufacture level of Hydroelectric Equipments Corporation at Abroad;

On responsible property of corporation and establishment of related system;

After succeeded in answering “why enterprises exist?”,Neoinstitutional economist don t know how to reason the diversified organization structures between enterprise and market.

If the innovation of property right system is not thorough, the structure of juridical person management in enterprise will has no way to perfect, many system disfigurements would appear in the running process of enterprise, and the correcting error function of system in enterprise would abated.

This paper builds a framework for enterprise entrepreneur study, formulates and analyzes the framework and relevant findings, and proposes some new ideas.