Model-based drug development Systemac Concept and Dcvelopment Model for the Production Base of Gynostemma pentaphyllum(Thunb.)Madino Preliminary study on population stucture and its dynamic development of Pentaphylax euryoides in the hilly country of Northeast Guangxi ON THE ESTABLISHMENT AND APPLICATION OF A SIMULATION MODEL FOR INSECT POPULATION DEVELOPMENT Model-based drug development Impacts of economic development models on ecosystem service values: a case study of three mountain villages in Middle Shandong, China Classification of development modes of recycle agriculture in China Regional programming and development models for touring agriculture in hilly an of Taihang Mountains- A case study from Hebei Province Research on progress of rainwater harvesting agriculture on the Loess Plateau of China Discussion on innovation model of Chinese materia medica based on “preceded pharmacokinetics” Development model and photoperiod sensitive parameters in barley Development mode of Cangzhou National Agricultural Science and Technology Park in Hebei Province, China