TY JOUR TI ENSURING THE EFFICIENT OPERATION OF THE FIRE HOSES IN MODERN CONDITIONS KW concept KW technical maintenance of fire hoses KW mathematical model KW experimental development of the technology of vacuum-thermal drying JO Problems of risk management in the technosphere AU Elfimova, M.V. AU Arhipov, G.F. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia