1. V. Chavchanidze Institute of Cybernetics of the Georgian Technical University, Z. Anjaparidze 5, Tbilisi 0186, Georgia
2. Department of Physics, College of Science, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 City Dammam, Saudi Arabia
3. Basic and Applied Scientific Research Center, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, 31441 Dammam, Saudi Arabia