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Enzyme-embedded self-degrading plastics
Enzyme-embedded self-degrading plastics are biodegradable polyesters containing plastic-degrading enzymes dispersed during manufacture, so moisture and warmth activate the enzyme to cut the polymer apart from within.
Enzyme-powered nanomotor
An enzyme-powered nanomotor (EMNM) is a micro- or nanoscale device that converts chemical energy into motion using enzymes as biocatalysts, propelling itself on fuels such as glucose or urea.
Eolian (company)
Eolian is a United States standalone grid-scale battery storage developer and operator founded in 2020 by Aaron Zubaty, operating over 300 MW of batteries in the Texas ERCOT market.
Eoptolink Technology
Eoptolink Technology, known in China as Xinyisheng, is a Chinese manufacturer of optical transceiver modules headquartered in Chengdu, serving AI clusters and cloud data centers since its 2008 founding.
Eos Energy Enterprises
Eos Energy Enterprises is an American company making zinc-based batteries for 3 to 12-hour utility and commercial energy storage, headquartered in Edison, New Jersey, and trading as NASDAQ: EOSE.
EOS-05
EOS-05, also known as GISAT-1A, is an Indian Earth observation satellite operated by ISRO, India's first imaging satellite in geosynchronous orbit, launched in September 2026.
EPAM Systems
EPAM Systems is an American IT services company headquartered in Newtown, Pennsylvania, founded in Minsk in 1993 by Arkadiy Dobkin, providing software engineering, cloud, and AI-enabled services to large enterprises.
EPB (Chattanooga)
EPB, formally the Electric Power Board of Chattanooga, is a municipally owned utility providing electric power and fiber internet, known as America's first "Gig City."
EPCC (supercomputing centre)
EPCC, formally the Edinburgh Parallel Computing Centre, is a supercomputing center at the University of Edinburgh, designated the UK's first National Supercomputing Centre in 2025.
EPCglobal
EPCglobal was a not-for-profit GS1 initiative, established in 2003 from the MIT Auto-ID Center, best known for the EPC Gen2 RFID air interface standard and EPCIS.
EPCOR
EPCOR is a Canadian utility company, created by the City of Edmonton in 1995, that builds and operates electricity, gas, and water networks across Canada and the United States.
Ephraim M. Sparrow
Ephraim M. Sparrow (1928–2019) was an American mechanical engineer in heat transfer and fluid mechanics who spent six decades on the University of Minnesota faculty.
EPIC NGL Pipeline
The EPIC NGL Pipeline, formally the EPIC Y-Grade Pipeline, is a natural gas liquids pipeline in Texas running from the Permian Basin and Eagle Ford to the Gulf Coast.
Epic Systems
Epic Systems Corporation is a privately held company in Verona, Wisconsin, that develops electronic health record software. Founded by Judy Faulkner in 1979, it is the largest US EHR vendor.
Epic-Kitchens
Epic-Kitchens is a large-scale egocentric video benchmark of unscripted kitchen activities, released in 2018 by researchers in Bristol, Toronto, and Catania and extended in 2020 into EPIC-KITCHENS-100, with 100 hours of densely annotated footage.
Epicor
Epicor is a privately held American enterprise software company headquartered in Austin, Texas. It develops industry-specific ERP software for manufacturing, distribution, retail, building supply, and automotive businesses.
Epicyclic gearing
Epicyclic gearing, also called planetary gearing, is a gear train in which one or more gears orbit the central axis, giving large speed or torque ratios in a compact package.
Epiphone
Epiphone, also known as Epiphone Guitars, is an American guitar brand founded in 1873 by the Stathopoulo family, now owned by Gibson and known for the Casino and affordable versions of Gibson models.
Epipolar geometry
Epipolar geometry is the projective geometry relating two perspective views of the same scene, restricting where a point's corresponding match appears in the other image to a single epipolar line.
Epitaxy
Epitaxy, also called epitaxial growth or deposition, is crystal growth in which a deposited layer continues the crystal structure of the substrate beneath it, enabling precisely layered semiconductor devices.
Epitaxy of two-dimensional materials
Epitaxy of two-dimensional materials is the growth of atomically thin crystals such as graphene, h-BN, and TMDs in registered orientation on single-crystalline substrates, enabling wafer-scale single-crystal films for electronics.
Epoch AI
Epoch AI is a nonprofit research organization founded in April 2022 that tracks trends in AI development and builds independent benchmarks for frontier models, including FrontierMath.
Epoxidized natural rubber
Epoxidized natural rubber (ENR) is natural rubber modified with epoxy groups along its backbone, a renewable elastomer whose polarity bonds directly to silica fillers in tire treads.
Epoxy asphalt
Epoxy asphalt is a paving binder in which thermosetting epoxy resin cures within conventional asphalt, gaining strength over time and used chiefly on orthotropic steel bridge decks.
EPR (nuclear reactor)
The EPR, or European Pressurized Reactor, is a 1,600 MWe generation III+ pressurized water reactor developed by France and Germany; four are operating as of 2025.
ePrivacy Directive
The ePrivacy Directive, Directive 2002/58/EC, is a European Union directive adopted in 2002 governing personal data and privacy in electronic communications, including the cookie consent rule.
ePrivacy Regulation
The ePrivacy Regulation was a proposed European Union regulation protecting private life and personal data in electronic communications, presented by the European Commission in 2017 to replace the 2002 ePrivacy Directive.
EPROM
EPROM, or erasable programmable read-only memory, is non-volatile semiconductor memory storing bits on a floating gate, erased by ultraviolet light; Intel introduced the first device, the 1702, in 1971.
Epsilon (イプシロン) (rocket)
Epsilon (イプシロン) is a Japanese solid-propellant launch vehicle developed by JAXA to launch small satellites at low cost, first flown from the Uchinoura Space Center in 2013.
Epson (セイコーエプソン株式会社)
Epson (Seiko Epson Corporation, セイコーエプソン株式会社) is a Japanese electronics company in Suwa, Nagano, making inkjet printers, projectors, and industrial robots, founded in 1942 as Daiwa Kogyo.