TY JOUR TI Methodology and principles of searching solutions to ensure safe operation of welders in confined spaces and hard-to-reach places KW heat and mass transfer KW modeling KW harmful substances KW safety KW deepwater welding. JO Vestnik of Don State Technical University AU Koronchik , D.. AU Rogozin , D.. AU Gaydenko, A.. AU Bulygin, Y.. AU Legkonogikh, A.. PY 2016 IS 16 PB Don state technical University