O. G. Dobroserdov, E. A. Titenko

A.G. Kurochkin - Head of Department, Southwest State University (Kursk). E-mail: ak.kursk@gmail.com S.G. Emelianov - Dr. Sc. (Eng.), Professor, rector of Southwest State University (Kursk) E-mail: rector@swsu.ru E.A. Titenko - Ph. D. (Eng.), Associate Professor, Southwest State University (Kursk). E-mail: johntit@mail.ru