Funding for this research was provided by:
the Project of Science and Technology Plan of Changsha (kc1809023)
the Scientific Research Project of Hunan Province Department of Education (19B 060, 18A373)
the Scientific Research Project of Hunan Province Department of Education (19c0539)
the Start-up Funds for Talent Introduction and Scientific Research of Changsha University 2015 (SF1504)
Training Program for Excellent Young Innovators of Changsha (kq1905005)
Article History
Received: 18 May 2020
Accepted: 28 July 2020
First Online: 24 August 2020