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.

Atmospheric CO2 concentration was determined using LI-6400 portable photosynthetic system CO2 analyzer.

The environment of Zhang Jia-jie Kwan-yin Cave was investigated in detail,the main influencing factors impacting the environmental of Kwan-yin Cave including CO2 concentration,O2 concentration,temperature,relative humidity,wind speed,and the lighting system.

CO2 concentration in different depth of the soil was studied using CO2 test tube method for one year in Luota,west Hunan province.