By means of the investigation and analysis of environmental noise level in the northeast industrial district of Shijiazhuang city, the statistical characteristics, the distributive rule and the countermeasures of enviromental noise level in the industrial district are explored.

The statistical characteristics of DFT algorithms for synchronous sampling and asynchronous sampling under stochastic condition are studied.

The statistical characteristics of the four earthquake ground motion models are compared with each other.

The Statistical Characteristic Analysis of the Ocean Return Signal from the Spaceborne Ocean Altimeter;

The energy and statistical characteristic、space-time distribution and people subjective reaction for the traffic noise from Haikou roads are analyzed in this paper.

The flexural strength of an advanced ceramic tool material and its statistical characteristics have been studied experimentally in this paper, according to which hot pressing parameters are optimized and the fracture feature is also analysed.

Statistical properties analysis of dynamic speckles produced by a rotating cylindrical surface;

Numerical stimulations of startup and statistical properties of SASE FEL;

First-order statistical properties of ultrasonic speckles back-scatteredfrom a kind of weak scattering interface;