Funding for this research was provided by:
National Natural Science Foundation of China (61901511, 61871471)
Natural Science Foundation of Shaanxi Province (2019JM-322)
Natural Science Basic Research Plan in Shaanxi Province of China (2020JQ-478)
Research Program of National University of Defense Technology (ZK19-10)
Article History
Received: 21 February 2020
Revised: 28 September 2020
Accepted: 6 October 2020
First Online: 5 November 2020
Compliance with Ethical Standards
:
: The authors declare no conflicts of interest.
: The program and code used in this manuscript are available. If anyone wants to use these programs, please contact the author directly. The author will send the program to anyone who requests it through email for the first time after receiving the request.