Zheng, Zhihao
Huang, Zhiren
Zhang, Fan
Wang, Pu
Funding for this research was provided by:
National Natural Science Foundation of China (61473320)
Project of Innovation-driven Plan in Central South University (2016CSX014)
National Key Research and Development Program of China (2016YFB1200400)
Hunan Science and Technology Plan Project (2015RS4011)
Article History
Received: 7 December 2017
Accepted: 26 June 2018
First Online: 11 July 2018
Competing interests
: The authors declare that they have no competing interests.