TY JOUR TI Efficiency Improvement of Industrial Fans if Operating at Off-Design Modes KW ventilation systems KW axial fan KW rotary blades KW fan adjustment KW effectiveness of industrial ventilation systems. JO Safety in Technosphere AU Zamolodchikov, G.I. AU Tumashev, R.Z. AU Schegolev, N.L. AU Furashov, A.S. AU Semilet, N.A. PY 2018 IS 7 PB INFRA-M Academic Publishing LLC.