TY JOUR TI A Computer Program for Determining the Parameters of Ultrasonic Testing of Welded Joints in Railway and Oil and Gas Transportation Systems KW ultrasonic testing KW welded joints KW acoustic parameters KW non-destructive testing JO Proceedings of Petersburg Transport University AU Afanas'eva, V.D. AU Vorob'ev, A.A. AU Konshina, V.N. AU Nikolaev, S.V. PY 2026 IS 23 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"