Wu, Shixun
Xu, Dengyuan
Wang, Honggang
Funding for this research was provided by:
The Science and Technology Research Project of Chongqing Municipal Education Commission (KJ1400305)
Foundation and Frontier Research Project of Chongqing (cstc2013jcyjA30016)
Natural Science Foudation of Chongqing (cstc2012jja40065)