TY JOUR TI COMPARATIVE REVIEW AND ASSESSMENT OF THE RUSSIAN AND FOREIGN HYDRAULIC RAM SYSTEMS KW hydraulic ram KW hydropower potential KW renewable energy sources KW energy saving JO Bulletin of KSAU AU Saplin, L.A. AU Ptashkina-Girina, O.S. AU Volkova, O.S. PY 2015 IS PB Krasnoyarsk State Agrarian University