N.А. Bondarenko, А.V. Kharlamov, О.I. Artyushin
N.A. Pulina, A.S. Kuznetsov, T.F. Odegova, R.R. Makhmudov
R.N. Nenashev - Post-graduate Student, Moscow Technological University (MIREA). E-mail: nenashev@mirea.ru
N.M. Kotova - Senior Engineer, Moscow Technological University (MIREA). Е-mail: kotova1953@yandex.ru