TY JOUR TI VARIABILITY OF APPROACHES TO MATHEMATICAL MODELING OF THE THERMAL PROCESSING PROCESSES OF THE PENOTECOLE SHIELD KW foam glass; mathematical models; heat treatment KW heat transfer JO Bulletin of Belgorod State Technological University named after. V. G. Shukhov AU Fedosov, S.V. AU Bakanov, M.O. AU Nikishov, S.N. PY 2017 IS 2 PB Belgorod State Technological University named after V.G. Shukhov