This article has studied the aeration character of the porous pipe and the changing rule of the internal barometric when the porous is in even aeration in the diffusion adding oxygen system of the porous pipe.

Application of time-space dependent digital gain system to seismic data processing;

The design of the program-controlled high frequency gain preamplifier and its application in medical instruments;

A Probe to the Multiple-gain Buildup and Real Time Calibration for Wide-range Measuring System;

This article mainly elaborates on the server selection algorithm based on plus model in multisever,a performance test through emulational experiment and comparison with other algorithms.

It gives sensitive analysis for PSS on and off in important zones, opens out those zones whose dynamic stability are weak, optimize the plus of PSS in Guangzhou Pumped Storage Power Station, in addition, this paper studies and compares weak damp ratio characteristic of inter-area and inner-area in Guangdong Power Grid when using different load models.