1. School of Physical Science and Technology
2. Southwest University
3. Chongqing 400715
4. China
5. Laboratoire de Physique Quantique de la Matiere et de Modelisation Mathematique
6. Université de Mascara
7. Mascara 29000
8. Algeria
9. College of Resources and Environment
10. Huazhong Agricultural University
11. Wuhan 430070
12. College of Sciences
13. Hebei North University
14. Zhangjiakou 075000