Based on sampling and analysis of particulate mercury in two districts of ChongQing in winter and spring 2004,this paper discussed the condition of mercury pollution in ChongQing from the particulate angle,analyzed the character of the pollution and assessed the flux of dry mercury deposition in ChongQing using the theoretical model.

From July 1999 to January 2000, the particulate mercury(Hg (p) ) concentration of five function sites and one contrast site were determinated.

ome measurement campaigns were carried out to determine trace total particulate mercury(TPM) in the atmosphere using a new miniaturized trap in April,July,August,November and December,2004.

Based on theories of grains size and dense packing,our research took oil-well cement with high-resistance to sulfur,Jiahua G,and hematite as basic materials and prepared a kind of cement slurry with density varying from 2.

The paper summarizes the formation,movement model of the debris and grain,the condition and mechanism of the oxides formation in the course of thermal wear of the metal composites.

Characteristics Analysis of Forces on Dispersal Particles in Swirling Flow Field;

Study on relationship between microcosmic fractal dimension of cement particles and macroscopical fluidity of cement;

Multi-scale analysis of acoustic emissions and measurement of particle mass flowrate in pipeline;

SEM analysis of particles and its effects in arc ion plating;

Research on design and application of image analysis system for micro particles;

Influences of vortices on impaction and distribution of small ash particles on rear side surface of boiler tube;

The relationship of viscosity and properties of SiC_p particulates reinforced heat resistant alumina matrix composites;

Compressive properites and microstructure of in-situ TiB whisker and TiC particulate mixture-reinforced Ti composite;

Study on the Resistance Characteristic of the Exhaust Particulate Filter for Diesel Engines;