Funding for this research was provided by:
National Natural Science Foundation of China (61571285, U1301257)
Scientific Research Staring Foundation (055-170002004)
Key Project on Anhui Provincial Natural Science Study by Colleges and Universities (KJ2018A0361)
Article History
Received: 7 November 2017
Revised: 29 May 2018
Accepted: 6 June 2018
First Online: 14 June 2018