It was found that the size of emulsion particle became smaller as the increase of emulsification pressure, reaction time, mass ratio of emulsifier to oligomeric polydimethylsiloxanols, and mass ratio of emuls.

The static viscosity of the starch paste increases with increasing particle size and decreases with prolonging grinding time;and the static elasticity follows the same trend.

By means of optical microscopy analysis system,the effect on the particle size of clay in high-salt and high-iron water caused by concentration of NaCl,CaCl_2,Fe~(2+) and adding volume of H_2O_2 was investigated.

Dynamic smoke aerosol of five European standard test fire,including open wood fire(TF1),smoldering cotton fire(TF3),polyurethane fire(TF4),N-heptan fire(TF5),and methylated spirits fire(TF6),was measured by Scanning Mobility Particle Sizer Spectrometer,and smoke particle size distribution and particle number concentration were recorded and analyzed for studying the smoke dynamic coagultion effect.

It has been shown that the heat transfer factor is closely related to the surface temperature,but the degree of correlation depends on the particle diameter and sieve range adopted.

Based on the statistical principle and image analysis theory, a new particle image method for measuring the particle diameters in flows is developed.

The experimental results show that the polymer particle diameter can be increased if the concentration of initiator increases at the range of between 1 mol/l and 3 mol/l.