N.A. Alipova - Assistant, Nizhny Novgorod State Technical University n.a. R.E. Alekseev. E-mail: alipovana@mail.ru V.G. Baranov - Ph.D. (Eng.), Professor, Nizhny Novgorod State Technical University n.a. R.E. Alekseev. E-mail: esvm@nntu.nnov.ru V.R. Milov - Dr. Sc. (Eng.), Professor, Head of Department, Nizhny Novgorod State Technical University n.a. R.E. Alekseev. E-mail: vladimir.milov@gmail.com