Li, Yuanyuan
Zhu, Nan
Chen, Tong
Wei, Manman
Ma, Yulong
Funding for this research was provided by:
the National Natural Science Foundation of China Fund (21465019)
Research Project for Science and Technology of Higher Education of Ningxia Provine of China (NGY2014011)
Ningxia Natural Science Founds of China (NZ13011)
the Science and Technology Planning Project of Jiangsu Entry-exit Inspection Bureau of China (2014KJ33)
the National Natural Science Foundation of China Fund (21266023)