With a method of regulation-gap analysis, the paper analyzes the purpose description on the policy feasibility study.

Listed companies should attach great importance to the feasibility study of new issues,and the authorities should strengthen the regulation of new issues by listed companies and establish and perfect the restraint mechanism.

It s very important on the quality assurance in feasibility demonstration of medical device,this paper study quality control of the medical device in feasibility demonstration from all its aspects.

Feasibility demonstration is the major constitution of real estate development project management and the significant means of real estat.

Based on the question of feasibility argumentation, the author put forwards technical route of the question in general land use planning, and analyzing the result of the prediction on constructive land scale in Yubei district by the way of rationality discussion.

The possible risk in water environment is defincd by means of possibility theory of fuzzy mathematics.

To deal with the practical need for uncertain time modeling and analysis in workflow management systems,concept of fuzzy time based on possibility theory was introduced and Extended Fuzzy Timing Workflow Nets(EFTWFN) was put forward,which was used to describe all uncertain time information in a workflow.