TY JOUR TI IDENTIFICATION IN FORM OF STATES SPACE AND INITIAL CONDITIONS IMPACT UPON ITS RESULTS KW identification KW states space KW initial conditions KW leucosapphire KW convective heat exchange KW Matlab JO Bulletin of Bryansk state technical university AU Shvyrikov, I.N. AU Yudin, A.V. PY 2019 IS 2019 PB Bryansk State Technical University