Funding for this research was provided by:
Key Project of the Ministry of Science and Technology of China (2016YFA0301403)
National Natural Science Foundation of China (11504219, 61378010)
Shanxi 1331KSC
Program for the Outstanding Innovative Teams of Higher Learning Institutions of Shanxi
Article History
Received: 28 July 2018
Accepted: 8 November 2018
First Online: 14 November 2018