V.I. Kristya - Dr. Sc. (Phys.-Math.), Professor, Kaluga branch of the Bauman MSTU E-mail: kristya@bmstu-kaluga.ru V.V. Prasitsky - Dr. Sc. (Eng.), Professor, Kaluga branch of the Bauman MSTU E-mail: sintel40@yandex.ru G.V. Prasitsky - Student, Kaluga branch of the Bauman MSTU E-mail: akatosh74@yandex.ru Kyaw Zay - Post-graduate Student, Kaluga branch of the Bauman MSTU E-mail: kyawzay49@gmail.com