%0 Journal Article %T JUSTIFICATION OF THE MECHANISM OF THE FIRE EXTINGUISHING ACTION OF THE POWDER BASED ON AN ANALYSIS OF ITS FRACTIONAL COMPOSITION IN A NON-STATIONARY GAS-POWDER FLOW %A Kozhevin, D.F. %K fractional composition, fire extinguishing powder composition, heat absorption power, powder extinguishing effect %J Problems of risk management in the technosphere %D 2025 %N 2025 %P 14 %I Saint-Petersburg University of State Fire Service of Emercom of Russia