Based on the introduction of grey relational analysis,fuzzy comprehensive evaluation and matter element analysis,the water quality indicators of the intake of the Yellow River in the years of 1998—1999 are analyzed and evaluated by the three evaluation methods.

The grey relational analysis is used to determine the assessment result.

then mainly introduces the Analytic Hierarchy Process(AHP)、Entropy、Grey Relational Analysis(GRA) application on the assessment

Study on corrosion influence factors of offshore oil wells with grey correlation analysis method;

Materials and Methods Hospitalization expenses of 600 inpatients from Cangzhou City in 2004 are estimated,and standardization clinical paths of 10 diseases are developed,and hospitalization expense standard are proposed through grey correlation analysis.

The effect of different film-uncovering time on yield,output value,inner chemical components and quality of flue-cured tobacco in upland field was studied by the method of grey correlation analysis.

Comprehensive Evaluation of Marketing Risk Based on GAHP;

Considering the grey characterisitc of some qualitative factors,this paper firstly gets the weight of each distribution center by using GAHP on the basis of analyzing the factors.

The reasons for crowded stampede accidents are complex,so the paper uses GAHP to establish the GAHP model of crowded stampede accidents in large-scale activities,on the basis of objective classification of influencing factors of crowded stampede accidents in large-scale activities.

The well-known method of system engineering,grey matter element analysis,was introduced into scheme design process of heating and air-conditioning system for one economical residential district in Shanghai City.