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  2. Digital object identifier - Wikipedia

    en.wikipedia.org/wiki/Digital_object_identifier

    A DOI is a type of Handle System handle, which takes the form of a character string divided into two parts, a prefix and a suffix, separated by a slash.. prefix/suffix. The prefix identifies the registrant of the identifier and the suffix is chosen by the registrant and identifies the specific object associated with that DOI.

  3. Handle System - Wikipedia

    en.wikipedia.org/wiki/Handle_System

    The Handle System is defined in informational RFCs 3650, [1] 3651 [6] and 3652 [7] of the Internet Engineering Task Force (IETF); it includes an open set of protocols, a namespace, and a reference implementation of the protocols.

  4. Group coded recording - Wikipedia

    en.wikipedia.org/wiki/Group_coded_recording

    Offering GCR-compatible diskette drives and floppy disk controllers (like the 100163-51-8 and 100163-52-6 [12]), Micropolis endorsed data encoding with group coded recording [13] on 5¼-inch 100 tpi 77-track diskette drives to store twelve 512-byte sectors per track since 1977 or 1978.

  5. ASCII - Wikipedia

    en.wikipedia.org/wiki/ASCII

    ASCII (/ ˈ æ s k iː / ⓘ ASS-kee), [3]: 6 an acronym for American Standard Code for Information Interchange, is a character encoding standard for electronic communication. . ASCII codes represent text in computers, telecommunications equipment, and other devic

  6. Ethernet over twisted pair - Wikipedia

    en.wikipedia.org/wiki/Ethernet_over_twisted_pair

    Cable [D] Cable rating (MHz) Intended usage StarLAN-1 1BASE5: 802.3e-1987: obsolete 1 2 1 1 PE 1 1 250 voice grade ~12 LAN: StarLAN-10 802.3e-1988: obsolete 10 2 1 1 PE 10 10 ~100 voice grade ~12 LAN LattisNet: pre 802.3i-1990: obsolete 10 2 1 1 PE 10 10 100 voice grade ~12 LAN 10BASE-T: 802.3i-1990 (CL14) legacy 10 2 1 1 PE: 10 10 100 Cat 3: ...

  7. Units of textile measurement - Wikipedia

    en.wikipedia.org/wiki/Units_of_textile_measurement

    One momme = 4.340 g/m 2; 8 mommes is approximately 1 ounce per square yard or 35 g/m 2. The momme is based on the standard width of silk of 45 inches (1.1 m) wide (though silk is regularly produced in 55-inch (1.4 m) widths and uncommonly in larger widths). The usual range of momme weight for different weaves of silk are: Habutai—5 to 16 mm

  8. Electrical injury - Wikipedia

    en.wikipedia.org/wiki/Electrical_injury

    A person can sense electric current as low as 1 mA for 60 Hz AC and as low as 5 mA for DC. At around 10 mA, AC current passing through the arm of a 68-kilogram (150 lb) human can cause powerful muscle contractions; the victim is unable to voluntarily control muscles and cannot release an electrified object. [ 19 ]

  9. Zinc - Wikipedia

    en.wikipedia.org/wiki/Zinc

    About 1.1 million tonnes of metallic zinc and 130 thousand tonnes of lead were mined and smelted in the Belgian towns of La Calamine and Plombières between 1806 and 1882. [116] The dumps of the past mining operations leach zinc and cadmium, and the sediments of the Geul River contain non-trivial amounts of metals. [ 116 ]