1. The Arts Faculty, North University of China, 3 Xueyuan Rd., Taiyuan, Shanxi Province, 030051, China
2. Total Scheduling of Xishan Coal Electricity Group Co., Ltd, 335 Xikuang St., Wanbolin, Taiyuan, Shanxi Province, 030053, China (Corresponding author), e-mail: lijianjun751@163.com, https://orcid.org/0000-0002-9027-4114