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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]
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.
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]).
A secular resonance is a type of orbital resonance between two bodies with synchronized precessional frequencies. In celestial mechanics , secular refers to the long-term motion of a system, and resonance is periods or frequencies being a simple numerical ratio of small integers .
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 inductive and resonance properties compete with each other but the resonance effect dominates for purposes of directing the sites of reactivity. For nitration, for example, fluorine directs strongly to the para position because the ortho position is inductively deactivated (86% para , 13% ortho , 0.6% meta ).
Solitary wave in a laboratory wave channel. In mathematics and physics, a soliton is a nonlinear, self-reinforcing, localized wave packet that is strongly stable, in that it preserves its shape while propagating freely, at constant velocity, and recovers it even after collisions with other such localized wave packets.
The TRIMprob (Tissue Resonance InterferoMeter Probe) is a portable system for non-invasive diagnosis of biological diseases invented by Italian physicist Clarbruno Vedruccio. [ 1 ] [ 2 ] It consists of a computer-controlled radio frequency interferometer detecting differences in electromagnetic properties in cancerous tissue.