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  2. Radar beacon - Wikipedia

    en.wikipedia.org/wiki/Radar_beacon

    Radar beacon. Racon signal as seen on a radar screen. This beacon receives using sidelobe suppression and transmits the letter "Q" in Morse code near Boston Harbor (Nahant) 17 January 1985. Radar beacon (short: racon) is – according to article 1.103 of the International Telecommunication Union's (ITU) ITU Radio Regulations (RR) [1 ...

  3. List of ISO 3166 country codes - Wikipedia

    en.wikipedia.org/wiki/List_of_ISO_3166_country_codes

    See the ISO 3166-3 standard for former country codes. British Virgin Islands – See Virgin Islands (British) . Burma – See Myanmar . Cape Verde – See Cabo Verde . Caribbean Netherlands – See Bonaire, Sint Eustatius and Saba . China, The Republic of – See Taiwan (Province of China) . Democratic People's Republic of Korea – See Korea ...

  4. List of Dewey Decimal classes - Wikipedia

    en.wikipedia.org/wiki/List_of_Dewey_Decimal_classes

    As a system of library classification the DDC is "arranged by discipline, not subject", so a topic like clothing is classed based on its disciplinary treatment (psychological influence of clothing at 155.95, customs associated with clothing at 391, and fashion design of clothing at 746.92) within the conceptual framework.

  5. Fetal alcohol spectrum disorder - Wikipedia

    en.wikipedia.org/wiki/Fetal_alcohol_spectrum...

    0.2 and 9 per 1,000 (FAS) Fetal alcohol spectrum disorders ( FASDs) are a group of conditions that can occur in a person who is exposed to alcohol during gestation, as a result of their mother drinking alcohol during pregnancy. [1] The several forms of the condition (in order of most severe to least severe) are: fetal alcohol syndrome (FAS ...

  6. Look-down/shoot-down - Wikipedia

    en.wikipedia.org/wiki/Look-down/shoot-down

    Look-down/shoot-down radars have been enhanced with electronic programs that process the radar image and search for moving objects, which are detected by looking for Doppler shifts in the radar return. See moving target indication. The radar removes all stationary objects (e.g. the ground and buildings) from the display and shows only moving ...

  7. ISO 3166-1 - Wikipedia

    en.wikipedia.org/wiki/ISO_3166-1

    ISO 3166-1 ( Codes for the representation of names of countries and their subdivisions – Part 1: Country codes) is a standard defining codes for the names of countries, dependent territories, and special areas of geographical interest. It is the first part of the ISO 3166 standard published by the International Organization for Standardization .

  8. Library of Congress Control Number - Wikipedia

    en.wikipedia.org/wiki/Library_of_Congress...

    Library of Congress Control Number. The Library of Congress Control Number ( LCCN) is a serially based system of numbering cataloged records in the Library of Congress, in the United States. It is not related to the contents of any book, and should not be confused with Library of Congress Classification (LCC).

  9. North American Industry Classification System - Wikipedia

    en.wikipedia.org/wiki/North_American_Industry...

    The North American Industry Classification System or NAICS ( / neɪks /) [1] is a classification of business establishments by type of economic activity (the process of production). It is used by governments and business in Canada, Mexico, and the United States of America. It has largely replaced the older Standard Industrial Classification ...

  10. Standard Industrial Classification - Wikipedia

    en.wikipedia.org/wiki/Standard_Industrial...

    The Standard Industrial Classification (SIC) was a system for classifying industries by a four-digit code as a method of standardizing industry classification for statistical purposes across agencies. Established in the United States in 1937, it is used by government agencies to classify industry areas. Similar SIC systems are also used by ...

  11. International Code of Signals - Wikipedia

    en.wikipedia.org/wiki/International_Code_of_Signals

    The International Code of Signals (INTERCO) is an international system of signals and codes for use by vessels to communicate important messages regarding safety of navigation and related matters. Signals can be sent by flaghoist , signal lamp ("blinker"), flag semaphore , radiotelegraphy, and radiotelephony.