Investigation on optimized gas recovery velocity of natural gas storage in salt rock layer by numerical simulation;

The mining rate affects the results of stress distribution,deformation and failure process in surrounding rocks in mechanized top-caving mining face.

Based on the fusion of the combination multiple model(IMM) and the probabilistic data association(PDA) algorithm,the paper fuses IMM-PDA with the adaptive sampling rate algorithm,and then presents the adaptive sampling rate interactive multiple model probabilistic data association(AIMMPDA) algorithm,which has good performance to track high maneuvering target.

Two equivalent criterions to the ex- isting theorem on the bandpass sampling rate f_s are offered in order to be applied to some engineering cases more conveniently.

This paper discussed the conflict between the sampling rate and the cost in dynamic vehicle weighing instrument and put forward the realization method of a new dynamic vehicle weighing instrument.

The uncertainty of evaluation results of sampling rates of linear measurement system by using the data number counting method in one standard signal period,the courses of analysis and evaluation of uncertainty of sampling rate are described in this paper.