%0 Journal Article %T Evaluating the operational efficiency of harvesters using an energy-based approach %A Golyakevich, S.. %K harvester, forwarder, operation, methodology, efficiency, technology, operation, conditions, manipulator, harvester head, concentration, felling, delimbing, bucking %J Forestry Engineering Journal %D 2026 %N 16 %P 20 %I FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov