Wei, Li
Agarwal, Ravi P
Wong, Patricia JY
Funding for this research was provided by:
National Natural Science Foundation of China (11071053)
Natural Science Foundation of Hebei Province (A2014207010)
Key Project of Science and Research of Hebei Education Department (ZH2012080)
Key Project of Science and Research of Hebei University of Economics and Business (2015KYZ03)