Korol V.I.1, Lankin M.V.2, Lankin A.M.3, Rudik E.A.4, Zdvizhkov F.V.5

1-5 Platov South-Russian State Polytechnic University (NPI) (Novocherkassk, Russia)

1corolvalera@yandex.ru, 2delete60@rambler.ru, 3lankinjohn@yandex.ru, 4mindcrysis_rd@mail.ru, 5felix.zdvizhkov@yandex.ru