XIAO Jian-feng was born in 1973. He received the B. S. degree from Xi'an Jiaotong University. In 2005, he received the Engineering Master degree from Cbongqing University. His research had focused on the lightning protection, insulation technical supervision and condition-based maintenance for power transmission and transformation equipment, etc. CHEN Xin was born in Wanzhou, Chongqing, China, in 1984. He received the B. S. degree in electrical engineering from Chongqing University in 2006. He is presently a graduate student at the College of Electrical Engineering in Chongqing University. His research has focused on the development of biomedicine apparatus and simulation in electric field. E-mail: cee1102067@163. com MI Yan was born in 1978. He received the B. S. and M. S. degree from Chongqing University, in 2000 and 2003, respectively. He is currently persuing the Ph. D. degree in the same University. He is presently a lecturer at the College of Electrical Engineering in Chongqing University. His areas of research include new technology of electrical engineering in biomedicine and its treatment apparatus. LI Cheng-xiang was born in 1979. He received the B. S. and M. S. degree from Chongqing University, in 2002 and 2005, respectively. He is currently persuing the Ph. D. degree in the same University. He is presently an associate professor in Chongqing University. His areas of research interests include biological effect of electromagnetic field on animal, modeling and simulation in electric field,killing effect of electric pulse on tumor. YAO Chen-guo was born in 1975. He received the t3. S. degree, M. S. degree and the.Ph. D. degree from Chongqing University in 1997, 2000 and 2003, respectively. He became an associate professor in Chongqing University in 2004. His current works include new electrical engineering in biomedical engineering and its treatment apparatus.