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Ultrasonic testing ( UT) is a family of non-destructive testing techniques based on the propagation of ultrasonic waves in the object or material tested. In most common UT applications, very short ultrasonic pulse waves with centre frequencies ranging from 0.1-15 MHz and occasionally up to 50 MHz, are transmitted into materials to detect ...
Industrial radiography is a modality of non-destructive testing that uses ionizing radiation to inspect materials and components with the objective of locating and quantifying defects and degradation in material properties that would lead to the failure of engineering structures. It plays an important role in the science and technology needed ...
Sonic logging is a well logging tool that provides a formation’s interval transit time, designated as , which is a measure of a how fast elastic seismic compressional and shear waves travel through the formations. Geologically, this capacity varies with many things including lithology and rock textures, most notably decreasing with an ...
Resonant ultrasound spectroscopy ( RUS) is a laboratory technique used in geology and material science to measure fundamental material properties involving elasticity. This technique relies on the fact that solid objects have natural frequencies at which they vibrate when mechanically excited. The natural frequency depends on the elasticity ...
Deltasonic. Deltasonic is a British record label based in Liverpool, England. Previously joint ventured with Sony Music, it is now totally independent. It was formed by Alan Wills, the former drummer with Liverpool bands Shack and Top, and associated with the ' cosmic Scouse ' and 'scallydelica' music scenes. [1] [2] [3]
“The FAA is investigating whether Boeing completed the inspections and whether company employees may have falsified aircraft records. At the same time, Boeing is reinspecting all 787 airplanes ...
Delta TechOps (Technical Operations) is the maintenance, repair and overhaul (MRO) division of Delta Air Lines, headquartered at Hartsfield-Jackson International Airport in Atlanta, Georgia. With more than 9,600 employees and 51 maintenance stations worldwide, Delta TechOps is a full-service maintenance provider for the more than 900 aircraft ...
Ultrasonic welding of thin metallic foils. The sonotrode is rotated along the weld seam. Ultrasonic welding is an industrial process whereby high-frequency ultrasonic acoustic vibrations are locally applied to work pieces being held together under pressure to create a solid-state weld. It is commonly used for plastics and metals, and especially ...