1. Electrical & Computer Engineering Department, College of Engineering, Dhofar University, Salalah, Oman
2. Mechanical & Mechatronics Engineering Department, College of Engineering, Dhofar University, Salalah, Oman
3. School of Materials Science and Engineering, Sichuan University of Science and Engineering, Zigong, SC, P. R. China
4. Department of Metallurgical and Materials Engineering, Faculty of Petroleum and Mining Engineering, Suez University, Suez, Egypt
5. IRC-Hydrogen and Energy Storage, King Fahd University of Petroleum & Minerals, Dharan, Saudi Arabia
6. Department of Research and Development, Caravane Earth, Doha, Qatar