In this work, a novel high-speed railway fastener detector is introduced. This fully convolutional network, dubbed FasteNet, foregoes the notion of bounding boxes and performs detection directly on predicted saliency map. FasteNet uses transposed convolutions skips connections, effective receptive field network 1.5\(\times \) larger than average size fastener, enabling to make predictions with ...

Controlled compliance and accommodation matrix techniques are considered for robust insertion of threaded fasteners. Errors in translational positioning are shown to be easily corrected. Errors in the angle of tilt between the threaded parts are shown to be much more diicult to correct and constrain the region of convergence for simple linear techniques.

© 1999 Kaiser Foundation Health Plan of Washington. All Rights Reserved. . Back to Top Kaiser Foundation Health Plan of Washington Clinical Review Criteria Bariatric Surgery  Adjustable gastric banding, Laparoscopic or Open (Lap Band)  EndoGastric Solutions Stomaphy XTM Endoluminal Fastener  Gastric Bypass for GERD  Gastric Electrical Stimulator  Intragastric Balloons  Laparoscopic Sleeve...

A deterministic mechanical model based on physical tool parameters was used for estimating static and dynamic hand forces from kinematic measurements. We investigated the effects of target torque (25, 40, and 55 Nm) and threaded fastener joint hardness (35-, 150-, 300-, 500-, and 900-ms torque buildup time) on hand force. Estimated hand force was affected by target torque and joint hardness. Pe...

Fatigue cracking in metallic aircraft structure often originates at fastener holes and can be detected using the nondestructive inspection technique of bolt-hole eddy-current (BHEC) testing. BHEC testing is based on detection of a disturbance in the induced current or magnetic field caused by a surface-breaking crack in the bore of the hole. However, if the surface of the hole contains benign m...

Fastener technology is a key of Ballastless track structure in high-speed railway, and the elastic strip component to realize fastener function. To this end, special loading fixture fabricated explore performance under fatigue load. The working state was simulated through testing machine, stress-controlled modes four amplitudes (25±5kN, 25±7.5kN, 25±10kN, 25±12.5kN) are investigated. The p...