Funding for this research was provided by:
National Natural Science Foundation of China (51637001, 51307001)
Natural Science Research Key Program of Anhui University (KJ2017A001)
Young Core Teacher Program of Anhui University (J01005126)
Article History
Received: 10 April 2019
Revised: 6 August 2019
Accepted: 24 August 2019
First Online: 16 September 2019