1. Office of Academic Affairs, Hebei University of Engineering, Handan, Hebei 056038, China
2. School of Earth and Engineering, Hebei University of Engineering, Handan, Hebei 056038, China
3. Organization Department, Hebei University of Engineering, Handan, Hebei 056038, China
4. Information Technology Department, Bank of Handan, Handan, Hebei 056001, China