M.E. Botov1, I.V. Pakhomov2, I.V. Gurin3, N.S. Kucheryavykh4, E.O. Garanin5

1-5 Don State Technical University (Rostov-on-Don, Russia)

1 GurinIV86@yandex.ru; 2 kucheryavyh.n@gs.donstu.ru; 3 vbif.27@yandex.ru; 4 ipahomov@donstu.ru, 5 egaranin@donstu.ru