1. School of Energy and Power Engineering, Jiangsu University, Zhenjiang, P.R. China
2. Department of Mathematics, University of Jeddah, Jeddah, Saudi Arabia
3. Key Laboratory of Advanced Reactor Engineering and Safety, Ministry of Education, Tsinghua University, Beijing, P.R. China
4. Department of Mathematics, College of Science, Taif University, Saudi Arabia
5. Department of Chemistry, Faculty of Science, King Khalid University, Abha, Saudi Arabia