1. Graduate Student, Dept. of Mechanical and Industrial Engineering, Univ. of Thessaly, Volos 38334, Greece.
2. Assistant Professor, Dept. of Mechanical and Industrial Engineering, Univ. of Thessaly, Volos 38334, Greece.
3. Assistant Professor, Dept. of Mechanical and Industrial Engineering, Univ. of Thessaly, Volos 38334, Greece (corresponding author).