Yang, Longhai
Chao, Xiaolian
Wei, Lingling
Zhao, Nan
Yang, Zupei
Funding for this research was provided by:
National Science Foundation of China (NSFC) (51172136, 21401123)
the Fundamental Research Funds for the Central Universities (GK201403006, GK201402061, GK201301002, GK201101003, GK201101004)
the Science and Technology Program of Shaanxi Province (Grant No. 2013K09-26)
Scientific and Technology Research Project in Xi’an (Program No. CXY1342(4))