TY JOUR TI Automated Ultrasonic Inspection of Adhesive Joints and Three-Layer Structures Made of Polymer Composite Materials KW polymer compounds KW UT KW transducer KW mode KW adaptive quantization KW probability distribution KW ultrasonic signal thresholding JO NDT World AU Ivanov, V.G. AU Starikovsky, G.P. AU Boitsov, A.A. AU Zagumennova, A.E. AU Kruchinkin, N.V. AU Tyshov, E.V. PY 2021 IS 24 PB LLC SVEN