L.M. Vdovin - Ph.D. (Eng.), Division Head, JSC «POLYOT Research and Production Company», V.R. Milov - Dr.Sc. (Eng.), Professor, Head of Department Nizhny Novgorod State Technical University n.a. R.E. Alek-seev T.I. Goriacheva - Ph.D. (Eng.), Associate Professor, Nizhny Novgorod State Technical University n.a. R.E. Alekseev D.V. Milov - Post-graduate Student, Nizhny Novgorod State Technical University n.a. R.E. Alekseev