1. Dept. of Biosystems & Agricultural Engineering, School of Agricultural Sciences, Univ. of Patras, Mesologhi 302 00, Greece (corresponding author). ORCID: .
2. High Voltage Laboratory, Dept. of Electrical & Computer Engineering, Univ. of Patras, Rion, Patras 26 504, Greece. ORCID:
3. School of Science and Technology, Hellenic Open Univ., 26 222 Patras, Greece.
4. Dept. of Mechanical Engineering & Aeronautics, Univ. of Patras, Rion, Patras 26 504, Greece. ORCID: .
5. Dept. of Physics, Univ. of Patras, Rion, Patras 26 504, Greece.