N.A. Borsuk1, T.A. Onufrieva2, L.V. Tsarev3, P.A. Deryugin4, A.Yu. Titov5

1–5 Kaluga Branch of Bauman Moscow State Technical University (Kaluga, Russia)

1 borsuk.65@yandex.ru, 2 onufrievata@mail.ru, 3 x174101@gmail.com,

4 shadowmadness792@mail.ru, 5 alexcandr40@mail.ru