Funding for this research was provided by:
National Natural Science Foundation of China (11871210, 11971215)
the SRF of Hunan Provincial Education Department (17A128)
National Natural Science Foundation of China (11671002)
Chinese University of Hong Kong (4053342, 4053405)
Research Grants Council, University Grants Committee (14300219, 14302920)
Research Grants Council, University Grants Committee (N_CUHK 415/19)
Article History
Received: 21 March 2019
Revised: 19 August 2020
Accepted: 12 October 2020
First Online: 24 October 2020