Funding for this research was provided by:
Doctoral research foundation of Hunan University of Science and Technology (E51974)
the Scientific Research Foundation of Hunan Provincial Education Department of China (19B199)
Natural Science Foundation of Hunan Province (2020JJ4029)
Article History
Received: 17 September 2019
Revised: 23 June 2020
Accepted: 13 July 2020
First Online: 6 August 2020