To the problem of the lead times of retailer stochastically fluctuating according to stock-out quantity of supplier,the optimal decision that supplier and retailer choose their safety factors is analyzed.

After discussing some important factors effecting the evaluation standards of indoor air qrality and methods,the author introduces some new ideas,for example,using threshold value to divide the threshold of man,using weight net to analyze comfort and using safety factor to improve safety prop.

This paper makes some beneficial approaches to safety factor optimization and coordination of twostage supply chain based on modeling research.

Implementation and dynamic management of safety control program of construction project;

Carry out OSHMS system to strengthen safety control for project management;

The safety control of structure projects back out;

Research on Security Control Strategy Based on Grid Security Technology;

Research on Security Control Technology of Navigation Positioning Satellite System Server;

First, the authors analyze and design rocket safety controlling architecture.

distributed information processing and safety controlling in the system.

Based on the main safety threat of the accounting information system under the electronic data processing condition, the paper deals with the safety controlling of the system.

This paper controls through module,interface engine,safe control and correspondence of analyze the bank comprehensive business system etc.

There has very important practical value to study the statistic character of fatigue load on steel crane structures and of fatigue resistance on all kinds of structural joints and to analysis the fatigue reliability of structural detail, which can be used to fatigue safe control.