D.V. Klimenko1, A.B. Nikitin2, A.A. Stroganov3, I.A. Tsikin4

1 Special Technological Center Ltd, (St. Petersburg, Russia)

2-4 Peter the Great St. Petersburg Polytechnic University (St. Petersburg, Russia)

1 devklimenko@stc-spb.ru; 2 nikitin@mail.spbstu.ru; 3 stroganov.aa@edu.spbstu.ru; 4 tsikin@mail.spbstu.ru