Acoustic emission (AE) technique is a common approach to identify the damage of the refractories; however. there is a complex problem since there are as many as fifteen involved parameters. which calls for effective data processing and classification algorithms to reduce the level of complexity. In this paper. https://www.bekindtopets.com/limited-stock-Original-U-S-Vietnam-War-Era-Operation-Igloo-White-Seismic-Sensor-Inert-Rocket-great-price/