To solve this issue,this paper predicts the lifetime of each node in wireless ad hoc networks and also presents a method to get the mobility parameters of a node which represents the node\'s moving speed by monitoring the change of the node\'s link status periodically.

In order to popularize the safety mining experience under railway bridges,the movement and deformation rule of ground and bridge is analyzed based on observation data,obtaining some ground movement parameters and some predicting parameters for probability integral.

This paper introduces the observation methods of ground movement,data processing and surface movement parameters.

In the moving parameter model for single phase flow in heated pipes,the moving parameter function is only a function of the system characteristic time,so it can not accurately describe the system characteristics.

While the saturation magnetization M\-s and moving parameter α were improved two times,the major loops altered slightly,but the influence of the parameter γ was obvious and the slope of major loops increased with increasing parameter.

Research on surface movement parameters of strip-partial mining;

Because optimal surface movement parameters determine the accuracy of prediction, so requiring them is the main contents of this paper and how to gain surface movement parameters and dynamic parameters according to surface movement observational data of arbitrary observation line is the key in this paper.

In this paper, a load distribution function is introduced so as to make the compound loads depend on a single load parameter, and average anglar deflection is being used as the single displacement perturbation parameter.