V.O. Osipova1, N.A. Trefilov2, A.V. Shpak3, N.A. Alyoshkin4

1-3 RTU MIREA (Moscow, Russia)

4 BSTU “VOENMEH” named after D.F. Ustinov (Saint Petersburg, Russia

1 osipova@mirea.ru; 2 shpak@mirea.ru; 3 trefilov@mirea.ru; 4 ales_nikita@mail.ru