TY JOUR TI MODELING ON THE DIAGNOSIS OF PNEUMATIC BRAKE DRIVE KW modeling of dynamic processes at work pneumatic brake KW factor determining the serviceability of a pneumatic actuator JO Problems of risk management in the technosphere AU Alekseik, E.B. AU Skripka, A.V. AU Marchenko, M.A. PY 2013 IS PB Saint-Petersburg University of State Fire Service of Emercom of Russia