Optimization of extraction process of compound Clematidis Radix spray by support vector machine Application of information entropy theory in optimization of extraction technology for Lonicerae Flos and Gardeniae Fructus in Reduning Oral Preparation Optimization of extraction technology for Xiaochuan Decoction based on information entropy theory Effects of ginkgo diterpene lactones meglumine injection‘s activated carbon adsorption technology on officinal components Stability of traditional Chinese medicinal materials′ quality adhered to regularity of biogenetic polymorphism Intra-annual Vegetation Change Characteristics in the NDVI-Ts Space: Application to Farming-Pastoral Zone in North China