TY JOUR TI Optimization of Train Speed Profile for Minimum Energy Consumption on the Basis of Uzbekistan Railway KW optimization KW train schedule KW train motion resistance KW braking KW energy efficiency JO Bulletin of scientific research results AU Lesov, A.T. AU Ivaschenko, V.O. PY 2022 IS 2022 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"