6Experimental analysis of temperature distributions on the CPC's absorberZHANG Xiao-dong, CHENG Ke, ZHANG He-fei28-31
7Research of solar energy electronic ballast for 400W high pressure sodium lampLI Gui-chen, SU Jian-hui, ZHANG Guo-rong32-34
8Increase water pump efficiency through controling the blade fold - angle in triangle method designZHANG Peng, WANG Xiao-jing35-37