O.V. Loginovskiy - Dr. Sc. (Eng.), Head of Department, South Ural State University (Chelyabinsk). E-mail: loginovskiyo@mail.ru A.A. Maksimov - Dr. Sc. (Eng.), Professor, South Ural State University (Chelyabinsk). E-mail: maximov@kfw.ru K.S. Khaldin - Post-graduate Student, South Ural State University (Chelyabinsk). E-mail: lar3811@yandex.ru