N.A. Korenevsky Dr.Sc. (Eng.), Professor, Southwest state university, Kursk. E-mail: kstu-bmi@yandex.ru A.N. Shutkin Ph.D. (Phys.-Math.), Voronezh Institute of the State Fire Service, Voronezh. E-mail: kstu-bmi@yandex.ru E.A. Boytsova Ph.D. (Eng.), Associate Professor, Head of the Department of Mathematics, Southwestern State University, Kursk. E-mail: kstu-bmi@yandex.ru L.V. Starodubtseva Ph.D. (Eng.), Associate Professor, Department Biomedical engineering, Southest state university, Kursk. E-mail: kstu-bmi@yandex.ru