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  2. High-availability Seamless Redundancy - Wikipedia

    en.wikipedia.org/wiki/High-availability_Seamless...

    An HSR network node (DANH) has at least two Ethernet ports, each attached to a neighbour HSR node, so that always two paths exist between two nodes. Therefore, as long as one path is operational, the destination application always receives one frame. HSR nodes check the redundancy continuously to detect lurking failures.

  3. Parallel Redundancy Protocol - Wikipedia

    en.wikipedia.org/wiki/Parallel_Redundancy_Protocol

    This is in contrast to the companion standard HSR (IEC 62439-3 Clause 5), with which PRP shares the operating principle. PRP and HSR are independent of the application-protocol and can be used by most Industrial Ethernet protocols in the IEC 61784 suite. PRP and HSR are standardized by the IEC 62439-3:2016 [1]).

  4. List of high-speed railway lines - Wikipedia

    en.wikipedia.org/wiki/List_of_high-speed_railway...

    This article provides a list of operational and under construction (or approved) high-speed rail networks, listed by country or region. While the International Union of Railways defines high-speed rail as public transport by rail at speeds of at least 200 km/h (124 mph) for upgraded tracks and 250 km/h (155 mph) or faster for new tracks, this article lists all the systems and lines that ...

  5. Ferroresonance in electricity networks - Wikipedia

    en.wikipedia.org/wiki/Ferroresonance_in...

    Ferroresonance or nonlinear resonance is a rare [1] type of resonance in electric circuits which occurs when a circuit containing a nonlinear inductance is fed from a source that has series capacitance, and the circuit is subjected to a disturbance such as opening of a switch. [2]

  6. Eidolon - Wikipedia

    en.wikipedia.org/wiki/Eidolon

    Achilles' sacrifice of Trojan prisoners, 4th-century BC fresco from Vulci.The eidolon of Patroclus is second from left.. In ancient Greek literature, an eidolon (/ aɪ ˈ d oʊ l ɒ n /; [1] Ancient Greek: εἴδωλον 'image, idol, double, apparition, phantom, ghost'; plural: eidola or eidolons) is a spirit-image of a living or dead person; a shade or phantom look-alike of the human form.

  7. National High Speed Rail Corporation Limited - Wikipedia

    en.wikipedia.org/wiki/National_High_Speed_Rail...

    NHSRCL was formed under the Companies Act, 2013. The objective of this body is the development and implementation of high-speed rail projects in India. The corporation is a ' special purpose vehicle ' (SPV) in the joint sector with equity participation of the Ministry of Railways, Government of India and two State Governments – Gujarat and ...

  8. HEMU-430X - Wikipedia

    en.wikipedia.org/wiki/HEMU-430X

    In a project, South Korean government research institutes and rail industry companies were directed in 1996 to fully localise high-speed rail technology. The know-how gained in the technology transfer for the KTX-I was used as the basis to develop the experimental train HSR-350x , [ 7 ] which was to be tested at up to 385 km/h (239 mph) so that ...

  9. Eidolon (disambiguation) - Wikipedia

    en.wikipedia.org/wiki/Eidolon_(disambiguation)

    Eidolons, a type of summoned companions in Aura Kingdom; Eidolons, a type of Summoned Monster in several Final Fantasy games; Eidolon, the main antagonist in the video game Hexen II; The Plains of Eidolon and the Eidolons, an open world area and a class of bosses respectively in the online game Warframe