V.V. Prasitskiy - Dr. Sc. (Eng.), Director of the Ltd. «Ekolyum-Voschod» (Kaluga). E-mail: sintel40@yandex.ru G.V. Prasitskiy - Student, Kaluga branch of the Bauman MSTU. E-mail: akatosh74@yandex.ru K.G. Nikiforov - Dr. Sc. (Phys.-Math.), Professor, Tsiolkovsky Kaluga State University. E-mail: kgn@kspu.kaluga.ru S.M. Zhdanov - Dr. Sc. (Eng.), Professor, Kaluga branch of the Bauman MSTU. E-mail: fn2kf@list.ru