Grey correlation analysis indicates that the correlative sequence of the pH with alkali cations in rainwater is NH~+_4>Ca~(2+)>Mg~(2+)>K~+>Na~+ and that of (pH′) with acidic anions in rainwater is F~->Cl~->SO~(2-)_4>NO~-_3.
Grey relation grade analysis showed: for the varieties which compositive chacter performed well: such as number 2 TH-IBON S-22, number 8 TH-IBON S-3, number 14 TH-IBON S-30, after introducing experiment can attended area experiment directly;
The content of Na, Mg, K, P, Al, Si. Ti, Cr, Mn, Fe, Zn, Co, Ni and Cu in tiger's bone and other animal bones was used as analytical index. Similarities of bear's bone,leopard's bone, cattle's bone, pig's bone, dog's bone and cat's bone to tiger's bone on trace element components were studied with grey relation analysis method.
In this paper,the grey relational degree and analytic hierarchy process are used to select excellent tree species of different clones willow for pulp and pitwood. The result is for pulp wood J 903 >J 799 >J 172 >J 308 >J 795 >J 802 ,for pitwood wood J 903 >J 799 >J 308 >J 172 >J 795 >J 802 ,so this paper can provide imformation and scientific basis for wood industry.
By grey relational analysis, the mechanical properties that influence the crease resistance of fabric are linearity of loadextension curve (LT), compressionthickness curve (LC), tensile resilience (RT), compression resilience (RC), shear stiffness (G), coefficient of friction (MIU), thickness (T) and weight (W).
Grey relational analysis is applied to the primary and secondary factor analysis of uniform design for chemical experiments. The consistency of regression coefficient strikingness F i in regression model and grey relational degree γ i are compared with examples.
The main function of investment risk analysis system is the gray correlation identification on the disturbed factors influencing investment and the main function of investment dynamic analysis system is to set up the gray dynamic forecast model based on the fundamental principle of metabolism GM (1,1).
The IGM model used the synthesizing grey correlation degree as weights to modify the results from GM (1, 1) models based on long and short son data sequence from the identical original data.
It was integrated of Association for Healthcare Philanthropy (AHP), grey correlation analysis, grey statistics and fuzzy judgment.
Based on chosen principal components, the river water quality in Jilin Province was evaluated by means of synthetic index method, fuzzy mathematical method, and grey correlation.
Based on the surveys and the statistic data during 1980-2003, the variation character of grain yield per unit area in Northeast China and its main factors have been discussed by the methods of statistics and grey correlation analysis.
Application of grey correlation method to evaluate potential groundwater recharge sites
Application of grey relational analysis in sheet metal forming for multi-response quality characteristics
In this paper, the use of grey relational analysis for optimizing the square hole flanging process parameters with considerations of the multiple response (the average flanging height, regular flanging and maximum strain) is introduced.
Optimal process parameters are determined by the grey relational grade obtained from the grey relational analysis for multi-performance characteristics (flanging height, regular flanging and maximum strain).
Analysis of variance (ANOVA) for the grey relational grade is implemented.
Grey relational analysis can be applied in multiple response optimization designs.