The distribution of nitrogen concentration and the microstructure of the nitrided layer were measured and observed by EPMA and SEM respectively.

The microstructure, phase, the distribution of nitrogen concentration, microhardness of the nitrided layer of 304 Austenitic stainless steel and 3Cr13 Martensite stainless steel was measured by SEM, EPMA, X-Ray, mic.

An analytical solution is presented to determined the distribution of concentration in a trapezoidal channel due to a stream of effluent discharging.

When there is contamination resource around a building, there is dose relationship between the distribution of concentration of contami-nation and the relative place between the contamination resource and the aerodynamic shadow zone.

Measurement of solid suspension density distribution in the furnace of a 75t/h circulating fluidized bed boiler (CFB) with the water cooled square separator was conducted with the probe developed by Tsinghua University.

Study on laws of ground layer meteorological elements variation and fungal concentration distribution in air in Beijing;

Study on laws of ground layer meteorologrical elements variation and bacteria in air concentration distribution in Beijing;

Study on settling slurry concentration distribution in inclined pipeline;

Study on Determination of Polymer Deterrent Concentration Profile in Gun Propellant by S~2 FT-IR PAS;

However, when dimensionless time is very small, this classical parabolic concentration profile would yield a negative profile within a particle, which is physically unrealistic.

A simplified dispersion model for predicting mass transfer coefficient ( K od a ) and concentration profile in CTRDC has been obtained and solved numerically.