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High-availability Seamless Redundancy (HSR) is a network protocol for Ethernet that provides seamless failover against failure of any single network component. PRP and HSR are independent of the application-protocol and can be used by most Industrial Ethernet protocols in the IEC 61784 suite.
Hamilton Street Railway, a transit agency in Ontario, Canada; High-speed rail. Higher-speed rail; High-Speed Research Program, a 1990–1999 NASA supersonic jet program; Hisar Junction railway station, in Haryana, India
Resonance made visible with black seeds on a harpsichord soundboard Cornstarch and water solution under the influence of sine wave vibration A demonstration of sand forming cymatic patterns on a metal plate. Cymatics (from Ancient Greek: κῦμα, romanized: kŷma, lit. 'wave') is a subset of modal vibrational phenomena.
[8] [9] These nested ring resonators are designed to enhance the quality factor (Q-factor) and extend the effective light-matter interaction length. These nested cavity configurations enable light to traverse the nested cavity multiple times, a number equal to the round trips of the main cavity multiplied by the round trips of the nested cavity ...
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.
The sequence number, the frame size, the path identifier and an Ethertype are appended just before the Ethernet checksum in a 6-octet PRP trailer. This trailer is ignored (considered as padding) by all nodes that are unaware of the PRP protocol, and therefore these singly attached nodes (SAN) can operate in the same network.
Eidolon was a Canadian power metal band formed in 1993 by brothers Shawn and Glen Drover (who both went on to become members of Megadeth). [1] [2] [3] The band was signed to Metal Blade Records, and released four records on that Label. Eidolon signed soon after to Escapi Records. [1] The band has released seven studio albums to date.
Resonant ultrasound spectroscopy (RUS) is a laboratory technique used in geology and material science to measure fundamental material properties involving elasticity.This technique relies on the fact that solid objects have natural frequencies at which they vibrate when mechanically excited.