О. V. Andreeva - Assiatant, Nizhniy Novgorod State Technical University n.a. R.E. Alekseev. E-mail: andreevaov@gmail.com
D. V. Dmitriev - Ph.D. (Eng.), Associate Professor, Nizhniy Novgorod State Technical University n.a. R.E. Alekseev. E-mail: dmitdmit@mail.ru V. V. Andreev - Dr.Sc. (Eng.), Associate Professor, Head of Department, Nizhniy Novgorod State Technical University n.a. R.E. Alekseev. E-mail: vyach.andreev@mail.ru