Li, Jian
Yan, Yulian
Xie, Xiaojun
Funding for this research was provided by:
the Natural Science Foundation of Chongqing (No.cstc2013jjB80008)
the Fundamental Research Funds for the Central Universities (No.XDJK2016C156)
the Start-up Research Grant from Qinzhou University (No.2017KYQD107)
Article History
Received: 12 November 2017
Accepted: 6 February 2018
First Online: 14 February 2018