TY JOUR TI IMPROVING THE EFFICIENCY OF FIRE EXTINGUISHING INSTALLATIONS BY SELECTING THE PREFERRED TYPE OF COMPRESSOR USING THE HIERARCHY ANALYSIS METHOD KW expert evaluation KW fire extinguishing units KW compressors KW method of hierarchy analysis JO Problems of risk management in the technosphere AU Sytdykov, M.R. AU Brusyanin, D.V. AU Abdullayeva, J.S. PY 2024 IS 2024 PB Saint-Petersburg University of State Fire Service of Emercom of Russia