Abstract: A novel vibrating bristled vehicle for small pipes is proposed. Its drive mechanism with rotating eccentric weight is simulated and analyzed. The investigation shows that the vibrating bristled ...

Abstract: The accuracy of slit-ray position measurement on an image plane of a TV camera is improved to the order of one-hundredth of pixel spacing by a regression analysis and an error analysis. Also, ...

Abstract: A quick-setting resin mortar has been developed to accomplish a new small diameter shield tunneling method. A nondestructive testing method employing ultrasonic pulses is used for estimating the ...