%0 Journal Article %T Efficiency Improvement of Industrial Fans if Operating at Off-Design Modes %A Zamolodchikov, G.I. %A Tumashev, R.Z. %A Schegolev, N.L. %A Furashov, A.S. %A Semilet, N.A. %K ventilation systems, axial fan, rotary blades, fan adjustment, effectiveness of industrial ventilation systems. %J Safety in Technosphere %D 2018 %N 7 %P 8 %I INFRA-M Academic Publishing LLC.