Ever since the end of WW II,the issue of Japan’s security has been considered more and more from such angles as the country’s economy and the related fields,though with the economic security theories and policies at different stages showing different features.

Respect for different civilizations in the world is the presupposition of the diplomatic ideas of "harmonious world";Adherence to the principles of peaceful co-existence is the political basis for that idea;Development and prosperity is the economic guarantee for the harmonious world;Consultation and co-operation is the basic approach to a harmonious world.

Study and Simulation of Railway Safety Guarantee Technology;

The Performance Optimization and Safety Guarantee of Mobile Intelligent Network Products;

Based on the current and future situation of civil aviation safety management in China,this paper describes the theoris and the technology systems of the accident prevention,the accident rescue and the safety guarantee,which makes the research of civil aviation safety investigation systematic,theoretic,standard and sustainable.

Agricultural protection is the necessity to remove the agricultural risks and realize the largest agricultural security guarantee;

For the actual need of the transit lines security in Sichuan Province, transit lines security guarantee system for Sichuan province, which is based on GIS technology, has realized the store and management of transit lines and different disaster information along the lines.

Lack of network security guarantee is currently worried by the people around the world.