1. Department of Electrical and Electronics Engineering, University of West Attic
2. Dept. of Electrical and Electronics Engineering,University of West Attica
3. Department of Electrical and Electronics Engineering, University of West Attica
4. Department of Music Technology & Acoustics, Hellenic Mediterranean University
5. Institute of Astronomy, Space and Earth Science,Kolkata, India
6. Department of Space Science and Engineering, National Central University, Taiwan
7. Hayakawa Institute of Seismo Electromagnetics