TY JOUR TI ENERGY SAVING OF THE RUNNING SYSTEM OF A WIDE-RANGE SPRINKLER MACHINE KW sprinkler machine "Kuban-LK1" KW energy-intensive gearbox KW independent electric drive KW torque KW strain gauge KW energy efficiency JO INTERNATIONAL AGRICULTURAL JOURNAL AU Ryazantsev, A.I. AU Evseev, E.Y. AU Antipov, A.O. AU Mal'ko, I.V. PY 2026 IS 9 PB Electronic science