Shen, Mingyu
Yu, Pengfei
Wang, Ronggui
Yang, Juan
Xue, Lixia
Hu, Min
Funding for this research was provided by:
National Natural Science Foundation of China (61672202)
Article History
Received: 18 June 2018
Revised: 28 December 2018
Accepted: 4 February 2019
First Online: 15 February 2019
Compliance with ethical standards
:
: The whole authors are fulltime teachers of Hefei University of Technology besides the second author Pengfei Yu, and he is the fulltime student of Hefei University of Technology. The whole authors declare that we have no conflicts of interest to this work.