edgepedia

Technology and the built world

61,984 articles

Edwin L. Carstensen

Edwin L. Carstensen (1919–2016) was an American biophysicist at the University of Rochester who founded ultrasound contrast science and was elected to the National Academy of Engineering.

Edwin L. Harder

Edwin L. Harder, born in Buffalo, New York, in 1905, was an American power engineer at Westinghouse known for protective relays and the Anacom analog computer.

Edwin L. Thomas

Edwin L. Thomas, also known as Ned Thomas, is an American polymer materials scientist who determined block copolymer morphology, including the gyroid, and holds a chair at Texas A&M.

Edwin L. Zebroski

Edwin L. Zebroski, also known as Edwin Leopold Zebroski, is an American nuclear reactor engineer who led reactor development at General Electric and research at EPRI.

Edwin Leopold Zebroski

Edwin Leopold Zebroski, born 1921 in Chicago, is an American nuclear reactor engineer and National Academy of Engineering member who led reactor development at General Electric and later EPRI.

Edwin Lutyens

Sir Edwin Landseer Lutyens (1869–1944) was an English architect known for Arts and Crafts country houses, the planning of New Delhi, and war memorials led by the Cenotaph in Whitehall.

Edwin N. Lightfoot

Edwin N. Lightfoot was an American chemical and biochemical engineer at the University of Wisconsin–Madison who co-authored Transport Phenomena and received the 2004 National Medal of Science.

Edwin R. Gilliland

Edwin R. Gilliland (1909–1973) was an American chemical engineer and MIT professor known for the Gilliland correlation in distillation design and for fluid catalytic cracking.

Eelume

Eelume is a family of eel-like hybrid autonomous underwater vehicles from Trondheim, Norway, that swims like a snake and can bend into a robotic arm for subsea repair work.

EEM power station

The EEM power station, known in Dutch as the Eemshavencentrale, is a coal and biomass-fired power station operated by RWE at the port of Eemshaven in Groningen, the Netherlands, opened in 2015.

Eemshaven FSRU

The Eemshaven FSRU, operated as EemsEnergyTerminal, is a floating LNG import terminal at Eemshaven in Groningen, the Netherlands, a Gasunie and Vopak joint venture built in six months in 2022 to replace Russian pipeline gas.

Eemshaven power station

The Eemshaven power station is a 1,580 MW hard coal and biomass-fired power plant at the port of Eemshaven in Groningen, Netherlands, owned by RWE since 2014.

EEPROM

EEPROM (electrically erasable programmable read-only memory) is a non-volatile floating-gate memory erased and rewritten byte by byte electrically, unlike flash, which erases whole pages at once.

Eero (wireless networking brand)

Eero is an Amazon-owned brand of home mesh Wi-Fi systems founded in San Francisco in 2014, which it says was the first home mesh system, and acquired by Amazon in 2019.

Eero P. Simoncelli

Eero P. Simoncelli is a Silver Professor at New York University and inaugural director of the Flatiron Institute's Center for Computational Neuroscience, known for models of visual perception.

Eero Saarinen

Eero Saarinen (1910–1961) was a Finnish-American architect and industrial designer whose works include the Gateway Arch, the TWA Flight Center at JFK Airport, and the Tulip Chair.

Efacec

Efacec is a Portuguese manufacturer of transformers, switchgear, substation automation, railway solutions, and electric-vehicle chargers, founded in 1948 and headquartered in Porto, with operations in 87 countries.

Efes Beverage Group

Efes Beverage Group is the beer and soft drinks business of Anadolu Efes, a Turkish company founded in 1969, brewing in 21 breweries across six countries and ranking as Europe's fifth-largest brewer.

Effect of spaceflight on the human body

The effect of spaceflight on the human body is the set of physiological changes from weightlessness, radiation, and isolation, including bone loss and vision problems studied by NASA.

Effect system

An effect system is a static analysis, usually built into a type system, that tracks what side effects an expression may perform, such as I/O or exceptions.

Effective length factor

The effective length factor, usually written K, is a dimensionless coefficient in structural engineering that converts a compression member's actual length into an equivalent pinned-end length for buckling design.

Effective neutron multiplication factor

The effective neutron multiplication factor, written keff, measures neutrons produced per generation against those lost to absorption and leakage, deciding whether a chain reaction dies out, sustains itself, or grows.

Effective radiated power

Effective radiated power (ERP) is a standardized measure of a transmitter's directional radio-frequency power: the antenna input power multiplied by the antenna's gain relative to a half-wave dipole.

Effective SNR mapping

Effective SNR mapping (ESM) is a physical-layer abstraction in wireless communications that compresses per-subcarrier SINR values into one effective SNR, used in LTE, 5G NR, and WiMAX simulators.

Effects of Hurricane Katrina in New Orleans

The effects of Hurricane Katrina in New Orleans, also called the Great Flood of New Orleans, began when levee failures on August 29, 2005 flooded 80 percent of the city, killing hundreds.

Effects of nuclear explosions

The effects of nuclear explosions, or nuclear weapon effects, are the blast waves, thermal radiation, prompt radiation, electromagnetic pulse, and radioactive fallout from a nuclear detonation.

Effects unit

An effects unit, also called an effects processor or effects pedal, is an electronic device that alters an instrument's sound, in forms from stompbox pedals to rack-mounted processors.

Efficient energy use

Efficient energy use, or energy efficiency, delivers the same or better energy services, such as light and heat, with less energy, without reducing comfort, through long-lasting technologies.

EfficientDet

EfficientDet is a family of scalable object detection models from Google Research, introduced at CVPR 2020, using EfficientNet backbones with a bi-directional feature pyramid network and compound scaling.

EfficientNet

EfficientNet is a family of convolutional neural networks for image classification that scales depth, width, and resolution together, reported by Mingxing Tan and Quoc V. Le in 2019.