Yu.M. Iskanderov1, A.A. Butsanets2, S.V. Smolentsev3, E.B. Mazakov4, K.V. Matrokhina5, V.Ya. Trofimets6

1 St. Petersburg Federal Research Center of the Russian Academy of Sciences (St. Petersburg, Russia)

2,3 Admiral Makarov State University of Maritime and Inland Shipping (St. Petersburg, Russia)

4–6 St. Petersburg Mining University (St. Petersburg, Russia)

1 iskanderov_y_m@mail.ru, 2 butsanetsaa@gumrf.ru, 3 SmolencevSV@gumrf.ru, 4 mazakov_eb@pers.spmi.ru 5 k.matrokhina@mail.ru, 6 zemifort@inbox.ru