Ma, Tingfu
Ge, Yongbin https://orcid.org/0000-0001-9622-3134
Funding for this research was provided by:
the National Natural Science Foundation of China (11772165)
the National Natural Science Foundation of Ningxia (2018AAC02003)
the National Key Research and Development Program of Ningxia (2018BEE03007)
the Scientific Research Program in Higher Institution of Ningxia (NGY2020110)
Major Innovation Projects for Building First-class Universities in China’s Western Region (ZKZD2017009)
Article History
Received: 16 April 2020
Accepted: 6 September 2020
First Online: 25 September 2020
Competing interests
: The authors declare that they have no competing interests.