Li, H. J.
Liang, X. F.
Yu, H. J.
Yang, D. Q.
Yang, S. Y.
Funding for this research was provided by:
Science Foundation of Southwest University of Science and Technology (11zx7157)
the Scientific Research Fund of SiChuan Provincial Education Department (14ZA0105)
Postgraduate Innovation Fund Project by Southwest University of Science and Technology (14ycx018)