A. I. Popov
Peter the Great St. Petersburg Polytechnic University
Russian Federation

Alexander I. Popov, Cand.Sci. (Eng.), Associate Professor of the Higher School of Mechanical Engineering

29, Politekhnicheskaya Str., St. Petersburg, 195251

V. I. Novikov
Peter the Great St. Petersburg Polytechnic University; St. Petersburg State University of Architecture and Civil Engineering
Russian Federation

Vitaly I. Novikov, Cand.Sci. (Eng.), Associate Professor of the Higher School of Mechanical Engineering, Peter the Great St. Petersburg Polytechnic University, Associate Professor of the Department of Forensic Science, St. Petersburg State University of Architecture and Civil Engineering

29, Politekhnicheskaya Str., St. Petersburg, 195251,

4, 2nd Krasnoarmeiskaya Str., St. Petersburg, 190005

D. N. Ivanov
Peter the Great St. Petersburg Polytechnic University
Russian Federation

Dmitry N. Ivanov, Postgraduate Student, Higher School of Mechanical Engineering

29, Politekhnicheskaya Str., St. Petersburg, 195251

I. A. Kozyrskiy
Peter the Great St. Petersburg Polytechnic University
Russian Federation

Igor A. Kozyrskiy, 4th year student majoring in Mechanical Engineering Technology, Higher School of Mechanical Engineering

29, Politekhnicheskaya Str., St. Petersburg, 195251