Several problems on extralow cycle variable amplitude fatigue fracture design;

The relationship of cycle times of fracture to the loading manner,geometry of the notch,and loading frequency was discussed and the suitable parameters of fracture design for medium-carbon steel in extra-low axial fatigue loading were presented.

The concept and properties of stress blanking are discussed on the basis of the conceptis of creak technique and fracture design.

How to realize transition from safety design to design safety in city building;

The Safety Design of Web Courses Based on ASP.NET;

Accident consequence-based safety design of chemical plant layout

Baseden risk analysis and evaluation,the author discusses safe design of the system,and points out that by carefullydesigning,taking suitable safety precautionary measure,it is possible to prevent possible risk and ensure the safeproduction.

Hereby this paper researches the likely issue in curve widen,horizontal slope and center traffic line,and presents correspond advice of road safe design.

This article mentioned the computer network from each level security hidden danger, and it has researched the safe design proposal in each level of computer network.

Main considerations in security design of recovery system of yellow phosphorus tail gas;

This paper introduced the American security design system from the aspect such as site survey,threat analysis,security level classification and site security countermeasures.

This study provides experimental foundations for the security design of utility tunnel with natural.