V.P. Marin - Dr. Sc. (Eng.), Professor, Moscow Technological University (MIREA) E-mail: martan1966@gmail.com S.N. Nikulina - Ph. D. (Eng.), Associate Professor, Kaluga branch of the Bauman MSTU E-mail: Voinsveta579@mail.ru A.V. Chelenko - Post-graduate Student, Kaluga branch of the Bauman MSTU E-mail: apererva@yandex.ru O.A. Padalka - Post-graduate Student, Kaluga branch of the Bauman MSTU E-mail: konola.pad@mail.ru