TY CONF TI THE RESULTS OF THE STUDY OF THE NON-STATIONARY PART OF THE RESISTANCE OF THE UNSTEADY MOVEMENT OF THE LOGS RAFTING UNITS KW rafting unit KW water tractive resistance KW unsteady motion KW coefficient of resistance KW nonstationarity factor JO ENERGY-SAVING AND ENVIRONMENTALLY SAFE TECHNOLOGIES OF THE TIMBER INDUSTRY – 2025 AU Manukovsky, A.Y. AU Shadrina, Y.V. PY 2025 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov