The changing law of retention index with temperature from chromatographic thermal function resulted from the variation of the different entropy and enthalpy during the chromatographic separation.
The application of TOPSIS method in seeking the optimum mixture ratio of blended coal is described in much detail by confirming the weight of index with entropy.
This article mainly introduces the method of TOPSIS and describes in much detail the application of TOPSIS in supplier evaluation by confirming the weight of index with entropy.