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As a positive response to the national energy-saving emission reduction policies to promote, line loss management company, the Henan province electric power company (hereinafter referred to as "the company") launched the Henan power grid construction project management system. This project has realized the on line calculation of theoretical line loss, line loss "four" management, decision support, to reduce the loss of line loss analysis of eight functions, and continue to demonstrate in the running process, formed the application mode of Henan power network line loss management system. This paper mainly Introduction Company in recent years the framework, work and the status line loss management system function and practical application etc..

In this paper, we combine local and global technology to simulate the behaviors of crowd. In the local, an improved weighting method to calculate preferred velocity is proposed, which reflects the current motion trend of a pedestrian. In the global, a decision tree is implemented to model the dynamic decision-making process, which plays an important role in choosing between several paths to destination. At the same time, we consider the influence of safety signs and information sharing on the behavior of pedestrians and give good security analysis to evacuation planning.

The hardness of P91 for HP loop pipes was lower than required in standard in a power plant which has run for about 35,000 hours. The experiments about Metallographic and conventional mechanical properties were done in this paper. The results show that the metallographic of P91 with low hardness was abnormal, creep damage was not found, and mechanical properties were poor.So the HP loop pipe with low hardness cant continue to be used safely.After re-heat treatment for HP loop pipe with low hardness,the results about metallographic and mechanical tests show that the performance of the pipe is good,and can continue to be used.