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Combat Ban – Testing and evaluation of the Air Force Vought A-7D aircraft, cancelled. Combat Beef – Build-up of a strategic reserve within the USA for Tactical Air Command units in South Vietnam (also called Beef Broth) Combat Bonus – Test activities associated with AF exploitation programs, cancelled.
Nondestructive testing. X-ray vault used in Radiography. Nondestructive testing ( NDT) is any of a wide group of analysis techniques used in science and technology industry to evaluate the properties of a material, component or system without causing damage. [ 1] The terms nondestructive examination ( NDE ), nondestructive inspection ( NDI ...
The Graduate Record Examinations ( GRE) is a standardized test that is part of the admissions process for many graduate schools [ 8] in the United States and Canada [ 9] and a few other countries. The GRE is owned and administered by Educational Testing Service (ETS). [ 10] The test was established in 1936 by the Carnegie Foundation for the ...
Ray-Ban is a brand of luxury sunglasses and eyeglasses created in 1936 by Bausch & Lomb. The brand is best known for its Wayfarer and Aviator lines of sunglasses. In 1999, Bausch & Lomb sold the brand to Italian eyewear conglomerate Luxottica Group for a reported $640 million.
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 ...
Reproduction of an early electron microscope constructed by Ernst Ruska in the 1930s. Many developments laid the groundwork of the electron optics used in microscopes. [2] One significant step was the work of Hertz in 1883 [3] who made a cathode-ray tube with electrostatic and magnetic deflection, demonstrating manipulation of the direction of an electron beam.
Wide-angle X-ray scattering. In X-ray crystallography, wide-angle X-ray scattering ( WAXS) or wide-angle X-ray diffraction ( WAXD) is the analysis of Bragg peaks scattered to wide angles, which (by Bragg's law) are caused by sub-nanometer-sized structures. [ 1] It is an X-ray-diffraction [ 2] method and commonly used to determine a range of ...
In analytical chemistry, sample preparation (working-up) refers to the ways in which a sample is treated prior to its analyses. Preparation is a very important step in most analytical techniques, because the techniques are often not responsive to the analyte in its in-situ form, or the results are distorted by interfering species. Sample ...