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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. 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 ...

  4. RTX Corporation - Wikipedia

    en.wikipedia.org/wiki/RTX_Corporation

    RTX Corporation, formerly Raytheon Technologies Corporation, is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia.It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitalization, as well as one of the largest providers of intelligence services.

  5. SCED Finder | Fast access to school codes

    nces.ed.gov/scedfinder/(X(1)S(biqyvuszkr0xesl5...

    The SCED Finder can help users select each element of a complete SCED identifier, from subject area to sequence. It includes search features to aid in identifying subject areas and course codes (the first five digits of the SCED identifier), and collects information for the SCED elements of course level, credit or grade span, and sequence.

  6. UIC identification marking for tractive stock - Wikipedia

    en.wikipedia.org/wiki/UIC_identification_marking...

    The UIC identification marking for tractive stock is a standard for identifying train stock like locomotives that supply tractive force primarily in Europe. Since the beginning of 2007 locomotives or other traction units in Europe have been given a 12-digit number. Vehicle numbering is now governed by the Intergovernmental Organisation for ...

  7. Global Medical Device Nomenclature - Wikipedia

    en.wikipedia.org/wiki/Global_Medical_Device...

    Global Medical Device Nomenclature ( GMDN) is a system of internationally agreed generic descriptors used to identify all medical device products. This nomenclature is a naming system for products which include those used for the diagnosis, prevention, monitoring, treatment or alleviation of disease or injury in humans.

  8. Public Elementary/Secondary School Locale Code Files

    www2.ed.gov/NCES/ccd/CCDLocaleCode.asp

    ZIP (1.1 MB) SAS File (3.9 MB) ZIP (1.1 MB) 3 CSV Files (1.3 MB each) 1 For unrevised data and documentation click here. 2 Word files. If you have any questions on this data set please contact the ED Facts team. CCD Data Files. CCD Data Resources: Public Elementary/Secondary School Locale Code Files, Information on Public Schools and School ...

  9. Specific Area Message Encoding - Wikipedia

    en.wikipedia.org/wiki/Specific_Area_Message_Encoding

    Specific Area Message Encoding (SAME) is a protocol used for framing and classification of broadcasting emergency warning messages. It was developed by the United States National Weather Service for use on its NOAA Weather Radio (NWR) network, and was later adopted by the Federal Communications Commission for the Emergency Alert System, then subsequently by Environment Canada for use on its ...

  10. Electronic Product Code - Wikipedia

    en.wikipedia.org/wiki/Electronic_Product_Code

    An EPC RFID tag used by Wal-Mart. The Electronic Product Code ( EPC) is designed as a universal identifier (using an idiosyncratic numerical code for each different commodity [1]) that provides a unique identity for every physical object anywhere in the world, for all time. The EPC structure is defined in the EPCglobal Tag Data Standard, [2 ...

  11. DX encoding - Wikipedia

    en.wikipedia.org/wiki/DX_encoding

    DX encoding. 135 Film Cartridge with DX barcode (top) and DX CAS code. The CAS code shows this is (top row) ISO 125 film, (bottom row) 24 exposures, +3/−1 f-stop exposure tolerance. The DX barcode reads 017563, showing DX number 109-12, 24 exposures. DX ( D igital inde X) encoding is an ANSI and I3A standard, originally introduced by Kodak in ...