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  2. Technetium-99m generator - Wikipedia

    en.wikipedia.org/wiki/Technetium-99m_generator

    Download QR code; Wikidata item; Print/export Download as PDF; ... Five modern technetium-99m generators The first technetium-99m generator, unshielded, 1958.

  3. Marx generator - Wikipedia

    en.wikipedia.org/wiki/Marx_generator

    Download QR code; Wikidata item; Print/export Download as PDF; Printable version; ... A Marx generator is an electrical circuit first described by Erwin Otto Marx in ...

  4. SnapTag - Wikipedia

    en.wikipedia.org/wiki/SnapTag

    SnapTag, invented by SpyderLynk, is a 2D mobile barcode alternative similar to a QR code, but that uses an icon or company logo and code ring rather than a square pattern of black dots. [ 1 ] [ 2 ]

  5. Vortex generator - Wikipedia

    en.wikipedia.org/wiki/Vortex_generator

    Vortex generators are most often used to delay flow separation.To accomplish this they are often placed on the external surfaces of vehicles [4] and wind turbine blades. On both aircraft and wind turbine blades they are usually installed quite close to the leading edge of the aerofoil in order to maintain steady airflow over the control surfaces at the trailing edge. [3]

  6. Hamming code - Wikipedia

    en.wikipedia.org/wiki/Hamming_code

    Hence the rate of Hamming codes is R = k / n = 1 − r / (2 r − 1), which is the highest possible for codes with minimum distance of three (i.e., the minimal number of bit changes needed to go from any code word to any other code word is three) and block length 2 r − 1.

  7. Van de Graaff generator - Wikipedia

    en.wikipedia.org/wiki/Van_de_Graaff_generator

    Download QR code; Wikidata item; Print/export ... A Van de Graaff generator is an electrostatic generator which uses a moving belt to accumulate electric charge on a ...

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