TY JOUR TI INCREASING THE EFFICIENCY OF MOBILE DELIVERY UNITS OF SPECIALIZED EQUIPMENT AND PERSONNEL FOR FIRE FIGHTING KW mobile vehicle KW power unit KW reliability KW efficiency KW fire extinguishing JO Problems of risk management in the technosphere AU Gavkalyuk, B.V. AU Lozhkin, V.N. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia