Wang, Gang
Niu, Min-Yao
Fu, Fang-Wei
Funding for this research was provided by:
National Natural Science Foundation of China (No.61171082, 61301137)
the Ph.D. Candidate Research Innovation Fund of Nankai University (No.91822144)
Article History
Received: 3 April 2018
Accepted: 10 September 2018
First Online: 13 September 2018