TY JOUR TI CREATION OF AN INNOVATIVE MOBILE UNIVERSAL FIRE EXTINGUISHING SYSTEM: ECONOMIC FEASIBILITY, COMPREHENSIVE COST AND BENEFIT ANALYSIS KW fire extinguishing KW economic feasibility KW mathematical model KW costs KW calculation algorithm KW damage prevention KW universal fire extinguishing system JO Problems of risk management in the technosphere AU Sytdykov, M.R. AU Shilov, A.G. AU Krutolapov, A.S. PY 2026 IS 2025 PB Saint-Petersburg University of State Fire Service of Emercom of Russia