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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 ...
Electronic Miscellaneous Document. The Electronic Miscellaneous Document (EMD) is an International Air Transport Association (IATA) standard for electronically documenting ancillary revenue; that is, all other sales and transactions between airlines and passengers besides electronic tickets. It is a step toward moving the airline industry to ...
Usage. This template is used for Delta Air Lines-related articles.Add {{Delta Air Lines}} to the above the external links to bottom of the categories.This template's initial visibility currently defaults to autocollapse, meaning that if there is another collapsible item on the page (a navbox, sidebar, or table with the collapsible attribute), it is hidden apart from its title bar; if not, it ...
List of file signatures. This is a dynamic list and may never be able to satisfy particular standards for completeness. You can help by adding missing items with reliable sources. This is a list of file signatures, data used to identify or verify the content of a file. Such signatures are also known as magic numbers or Magic Bytes.
The Boeing Sonic Cruiser was a concept jet airliner with a delta wing – canard configuration. It was distinguished from conventional airliners by its delta wing and high- subsonic cruising speed of up to Mach 0.98. Boeing first proposed it in 2001, but airlines generally preferred lower operating costs over higher speed.
The Whitcomb area rule, named after NACA engineer Richard Whitcomb and also called the transonic area rule, is a design procedure used to reduce an aircraft 's drag at transonic speeds which occur between about Mach 0.75 and 1.2. For supersonic speeds a different procedure called the supersonic area rule, developed by NACA aerodynamicist Robert ...
DELTA (taxonomy) DELTA (DEscription Language for TAxonomy) is a data format used in taxonomy for recording descriptions of living things. It is designed for computer processing, allowing the generation of identification keys, diagnosis, etc. [1] It is widely accepted as a standard and many programs using this format are available for various ...
A content template is a document which provides a table of contents. It might be modified to correspond to the user's needs. The word "Template" here means "a pre-formatted file type that can be used to quickly create a specific file". Everything such as font, size, color and background pictures are pre-formatted but users can also edit them.