Changes in the geological environment and track wear. and deterioration of train bogies may lead to the looseness of subway fasteners. Identifying loose fasteners randomly distributed along the subway line is of great significance to avoid train derailment. This paper presents a convolutional autoencoder (CAE) network-based method for identifying fastener loosening features from the d... https://www.pomyslnaszycie.com/tillman-750-stick-welding-gloves-sale/