The effect of policy on stock market is great, especially around apex and vale, because it may change the direction of the original price so as to produce great fluctuation in price.

Ecological problems of primary dry valleys is Southwest China and advances in the researches into them;

Differences in growth and reproductive characters of Rosa hugonis in the dry valley of the Upper Minjiang River,Sichuan;

Species diversity and floristic characteristics of woody plants in the dry valley of the Bailong River,China;

Infrared-radiative ceramics materials for grain drying;

Intelligent real-time on-line measuring system for moisture content during grain drying;

Energy consumption for grain drying in China;