E.I. Dukhan, N.S Knyazeva, A.N. Averkiev, O.V. Gorbunova

E.I. Dukhan – Ph.D.(Eng.), Associate Professor, 

Ural Federal University named after the first President of Russia B.N.Yeltsin (Ekaterinburg)

N.S. Knyazeva – Post-graduate Student, 

Ural Federal University named after the first President of Russia B.N.Yeltsin (Ekaterinburg)

K.D. Solodun1

1 JSC “CNIRTI named after academician A.I. Berg” (Moscow, Russia)

1 kirs.110@ya.ru