1. Candida Oancea Institute, Polytechnic University of Bucharest, Bucharest, Romania
2. Romanian Academy, Calea Victoriei 125, Bucharest, Romania
3. Department of Power Mechanics, Al-Furat Al-Awsat Technical University, Technical College Najaf, Najaf, Iraq
4. Department of Thermodynamics, Engines, Thermal and Refrigeration equipment, Faculty of Mechanical Engineering and Mechatronics, Polytechnic University of Bucharest, Bucharest, Romania