TY - JOUR T1 - Generation of AE signals and its waveform characteristics of gas leakage emanated on pipe with specific defects of different geometrical shapes JF - Philippine Engineering Journal A1 - Laodeno, Rem Nunez A2 - Yoshida, Kenichi LA - English YR - 2011 UL - https://tuklas.up.edu.ph/Record/IPP-00000642231 KW - Acoustic emission KW - Nondestructive testing KW - Gas leakage ER -