Xiaoyong, Ji
Sen, Bai
Guibin, Zhu
Bing, Yan
Funding for this research was provided by:
National Natural Science Foundation of China (No.61272043)
Basic and Frontier Project of Chongqing (No. cstc2013jjB40009)
Program for Innovative Research Team in University of Chongqing (No. KJTD201343)
innovation project of graduate students (CYS14203)