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Elastic recoil detection
Elastic recoil detection, also called forward recoil scattering, is an ion beam analysis technique first reported in 1976 that measures light elements, especially hydrogen, in thin films.
Elastic scattering
Elastic scattering is a collision between particles in which the system's kinetic energy is conserved, so particles deflect or exchange momentum without exciting, ionizing, or creating anything new.
Elastic therapeutic tape
Elastic therapeutic tape, or kinesiology tape (Kinesio Tape, developed by Kenzo Kase in 1979), is a stretchy cotton adhesive tape used for pain, swelling, and sports support; systematic reviews find little benefit over sham tape.
Elastic training
Elastic training is a distributed machine learning technique where a training job adjusts its number of workers while running, shrinking when nodes fail and growing when capacity returns.
Elastic wave cloaking
Elastic wave cloaking uses engineered metamaterials to steer elastic waves, such as seismic and flexural waves, around a region so it remains undetected by the wave field.
Elastic weight consolidation
Elastic weight consolidation (EWC) is a continual learning algorithm introduced by James Kirkpatrick and colleagues at Google DeepMind in 2017 to overcome catastrophic forgetting in neural networks.
Elastic-rebound theory
Elastic-rebound theory explains earthquakes as the sudden release of elastic strain that builds up in rock around a locked fault, proposed by Harry Fielding Reid after the 1906 San Francisco earthquake.
Elastica
Elastica: English Britpop-era rock band formed in London in 1992 by Justine Frischmann and Justin Welch after leaving Suede; 1995 self-titled debut topped the UK chart, second album The Menace (2000), dissolved in 2001.
Elastica (album)
Elastica is the 1995 self-titled debut album by Britpop band Elastica (Justine Frischmann, Donna Matthews, Annie Holland, Justin Welch). Released 13 March 1995 on Deceptive/DGC, it topped the UK chart as the fastest-selling British debut, with singles Stutter, Line Up, Connection, Car Song, and Waking Up.
ElasticFusion
ElasticFusion is a real-time dense visual SLAM system that builds surfel-based 3D maps of rooms from RGB-D camera video, correcting drift by deforming the map itself.
Elasticity (economics)
Elasticity in economics measures how strongly one economic quantity responds when another changes, expressed as a unit-free ratio of percentage changes, formalized by Alfred Marshall.
Elasticity (physics)
Elasticity in physics is the property of a solid by which deformation from applied forces reverses when the forces are removed, quantified through stress, strain, and elastic moduli.
Elasticity coefficient
Elasticity coefficient (MCA): local sensitivity of an enzyme reaction rate to a substrate, product, or effector, defined as the relative rate change per relative change in that factor; introduced by Kacser and Burns and Heinrich and Rapoport in 1970s metabolic control analysis.
Elasticity imaging
Elasticity imaging is a family of medical imaging techniques that noninvasively map the stiffness of biological tissue using ultrasound or MRI, used mainly to stage liver fibrosis and characterize tumors.
Elasticity tensor
The elasticity tensor is the fourth-rank tensor relating stress to strain in a solid, the tensorial statement of Hooke's law with 21 independent constants at most.
ElasticRun
ElasticRun is a Pune-based logistics and fulfillment company founded in 2016 by former Amazon executives, which became a unicorn in 2022 at a $1.5 billion valuation.
Elasticsearch
Elasticsearch is a distributed search and analytics engine built on Apache Lucene that stores JSON documents searchable in near real time, created by Shay Banon and released in 2010.
Elastin
Elastin, from the precursor tropoelastin (ELN gene, chromosome 7), is the cross-linked protein of elastic fibers giving recoil to arteries, lungs, and skin; ~1.1 MPa modulus, desmosine cross-links, no adult synthesis.
Elasto-inertial turbulence
Elasto-inertial turbulence (EIT) is a chaotic flow state in viscoelastic fluids, named in 2013, in which polymer elastic stresses and flow inertia sustain disordered motion. It is linked to maximum drag reduction.
Elastocaloric effect
The elastocaloric effect is the reversible temperature change produced in a material by applying or removing mechanical stress, the basis of solid-state cooling using shape-memory alloys.
Elastocaloric heat pump
An elastocaloric heat pump is a solid-state heating and cooling device that pumps heat by mechanically loading shape-memory alloys, needing no compressor or fluorinated refrigerant.
Elastocapillarity
Elastocapillarity is the coupling between capillary forces and elastic deformation of soft solids; the elastocapillary length, surface tension over elastic modulus, separates capillarity- from elasticity-dominated scales.
Elastoderma
Elastoderma (ORPHA:228240) is an extremely rare acquired skin disorder with localized skin laxity and delayed recoil on elbows, knees, or neck, caused by dermal accumulation of pleomorphic elastic fibers without calcification; cause unknown, no standard therapy.
Elastofibroma dorsi
Elastofibroma dorsi (elastofibroma) is a benign, slow-growing fibroelastic soft-tissue tumor of the infrascapular chest wall, first described by Järvi and Saxén in 1961, common in elderly women, bilateral in about a third of cases, and treated conservatively unless symptomatic.
Elastography
Elastography, also known as tactile imaging, is a non-invasive medical imaging technique that measures tissue stiffness using ultrasound or MRI, most commonly to detect liver fibrosis.
Elastohydrodynamic lubrication
Elastohydrodynamic lubrication (EHL) is a form of hydrodynamic lubrication where elastic deformation of the surfaces and a sharp rise in lubricant viscosity under pressure create the separating film.
Elastoma
Elastoma, also called nevus elasticus or juvenile elastoma (Weidman), is a rare connective tissue nevus of dermal elastic fibers causing firm skin-colored to yellowish papules; isolated or with osteopoikilosis as Buschke-Ollendorff syndrome.
Elastomer
An elastomer is a polymer that displays rubber-like elasticity, stretching to twice its length and returning to shape; examples include natural rubber, neoprene, and SBR.
Elastoplastic model
An elastoplastic model is a constitutive model of solid mechanics that describes deformation as a recoverable elastic part plus a permanent plastic part once a yield criterion is reached.
Elastosis perforans serpiginosa
Elastosis perforans serpiginosa (EPS) is a rare perforating skin disorder in which abnormal elastic fibers are pushed through the epidermis, forming reddish bumps in snake-like or ring patterns, often on the neck.