S.E. Surzhikova - Post-graduate Student, Federal State Budgetary Institution VO Southwest State University, Kursk, Russia E-mail: moi_lanchik@mail.ru Yu.B. Mukhatayev - Post-graduate Student, Federal State Budgetary Institution VO Southwest State University, Kursk, Russia L.V. Pleskanos - Ph.D. (Eng.), Associate Professor, Federal State Budgetary Institution VO Southwest State University, Kursk, Russia O.V. Shatalova - Ph.D. (Eng.), Associate Professor, Federal State Budgetary Institution VO Southwest State University, Kursk, Russia E-mail: shatolg@mail.ru