1. Mechanical Engineering Doctoral School, Szent István Campus, MATE University, Páter Károly u. 1, 2100 Gödöllő, Hungary
2. Baquba Technical Institute, Middle Technical University (MTU), Muasker Al-Rashid Street, Baghdad 10074, Iraq
3. Department of Power Engineering, Aleppo University, Myrdian Street, Aleppo 999, Syria
4. Institute of Technology, Szent István Campus, MATE University, Páter Károly u. 1, 2100 Gödöllő, Hungary