TY JOUR TI DETECTION OF FIRE SITUATIONS BY CONTROL OF GASSING AND AEROSOL NANOPARTICLES KW gas analysis KW gas analyzer KW aerosol KW particle counter JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Meshalkina, M.N. AU Tsvetkov, V.A. AU Popov, B.I. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia