TY CONF TI SOLAR POWERED AIRCRAFT KW solar energy KW aviation KW unmanned aerial vehicles (UAVs) KW atmospheric satellite KW solar panels KW Sunrise I KW Solara KW Solar Impulse KW alternative energy sources JO INDUSTRIAL THERMAL POWER ENGINEERING AU Ryzhkov, V.V. AU Koltsova, A.V. AU Zolotarev, A.V. PY 2026 PB FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov