Results 91 to 100 of about 25,453 (205)

A Method for Damage Detecting of Large Reflector Antennas Wheel-Rail Based on Electromagnetic Ultrasonic Technology

IEEE Access
The azimuth wheel-rail of large reflector antennas is one of the key components, it not only supports the whole weight of the antenna, but also directly affects the antennas’ pointing performance by its surface accuracy.
Cong Jin, You Ban, Shufei Feng
doaj   +1 more source

Effects of Ultrasonic Surface Rolling Processing and Subsequent Recovery Treatment on the Wear Resistance of AZ91D Mg Alloy. [PDF]

Materials (Basel), 2020
Zhao X, Liu K, Xu D, Liu Y, Hu C.
europepmc   +1 more source

Measuring Dislocation Density in Aluminum with Resonant Ultrasound Spectroscopy

, 2008
Dislocations in a material will, when present in enough numbers, change the speed of propagation of elastic waves. Consequently, two material samples, differing only in dislocation density, will have different elastic constants, a quantity that can be ...
ALEJANDRO JARA, ANDRES CARU, FELIPE BARRA, FERNANDO LUND, Granato A. V., Koehler J. S., MARIA TERESA CERDA, Migliori A., NICOLAS MUJICA, RODRIGO ESPINOZA, Stix T. H., Williams D. B.   +11 more
core   +1 more source

Effects of Ultrasonic Surface Rolling on the Localized Corrosion Behavior of 7B50-T7751 Aluminum Alloy. [PDF]

Materials (Basel), 2020
Xu X, Liu D, Zhang X, Liu C, Liu D, Ma A.   +5 more
europepmc   +1 more source

Technology transfer-transportation [PDF]

Problems in the public transportation industry and refining methods for decreasing the time gap between the development and the marketing of new technology are considered.
Anyos, T., Lizak, R., Wilhelm, J.
core   +1 more source

Feasibility Assessment of Guided Wave Generation in Rail Using Electromagnetic Acoustic Transducers for In-Service Inspection

e-Journal of Nondestructive Testing
The use of electromagnetic acoustic transducers for the generation of ultrasonic guided waves for in-service rail testing could help overcoming some of the current limitations characterizing state of the art conventional (bulk) ultrasonic testing by ...
Andrea Appiani, Michele Carboni
doaj   +1 more source

Methodological peculiarities of defectoscopy of the sortament of the rollers of rolling mill after their restoration [PDF]

, 2018
В работе представлены результаты разработки методики ультразвуковой диагностики состояния дефектности малыхпартий роликов прокатного стана разного сортамента, на разных стадиях их восстановления после разрушения рабочей поверхности в процессе ...
Безымянный, Юрий Георгиевич, Козирацкий, Евгений Александрович, Колесников, Анатолий Николаевич, Комаров, Константин Андреевич, Талько, Оксана Викторовна   +4 more
core  

Index to NASA Tech Briefs, 1975 [PDF]

, 1976
This index contains abstracts and four indexes--subject, personal author, originating Center, and Tech Brief number--for 1975 Tech ...

core   +1 more source

Methods and apparatus employing vibratory energy for wrenching Patent [PDF]

, 1970
Ultrasonic wrench for applying vibratory energy to mechanical ...
Blaise, H. T., Maropis, N., Wilson, W. A.   +2 more
core   +1 more source

Slipping friction of an optically and magnetically manipulated microsphere rolling at a glass-water interface

, 2008
The motion of submerged magnetic microspheres rolling at a glass-water interface has been studied using magnetic rotation and optical tweezers combined with bright-field microscopy particle tracking techniques.
Caroli C., Raoul Kopelman, Rodney Ray Agayan, Ron Gordon Smith, Siegman A. E., Strogatz S. H., van de Ven T. G. M.   +6 more
core   +1 more source