The modeling course on prediction of uranium concentration in pregnant solution from in-situ leaching of uranium is described, a mathematical model based on grey sysytem theory is put forward, and a set of computer application software is correspondingly developed.

In this paper briefly discusses the kinetic characteristics of in situ leaching and expounds the variation of uranium concentration in the leaching out liquor and rational wellfield layout.

The principle,method and case history how to predict the average uranium mass concentration in lixivium of in-situ leaching are introduced and the existing problems are discussed.

Aerosol mass concentration algorithm based on the number of equivalent spherical particles;

Influence of temperature and relative humidity upon aerosol mass concentrations vertical distributions;

Analysis of aerosol number concentration and mass concentration using APS;

A non-linear mathematics model for the quality concentration C of paper pulps is given in this paper to make linear compensation for the temperature, pH and pulp quality.

Measuring mass concentration of gas-solid multiphase flow by triboelectricity;

Study on variational regularity of airborne dust concentration conversion factor(K-Factor) in tunnel under construct;

Raising seedlings test by sowing was conducted by immersing seed of lanthanon solution with 4 different concentrations and 2 immersed time,the results showed that:To the seedlings of 1-yr-old of Larix olgensis by,its growth in height and basal diameter,length of main root and amount of lateral roots,also in survival rate,can be greatly promoted by all treatment.

The relation between pumping volume of drilling hole and uranium concentration in pregnant solution;

SPUC-system on predicting uranium concentration based on GM model of gray system theory is developed,and the mathematical model,constitution,function and theory foundation of this system are introduced.