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G. Russell Sutherland
G. Russell Sutherland (Glenn Russell Sutherland) was an American agricultural machinery engineer at Deere & Company who held 27 patents and was elected to the National Academy of Engineering in 1984.
G.652 standard single-mode fiber
G.652 standard single-mode fiber, commonly called standard single-mode fiber (SSMF), is the most widely deployed single-mode optical fiber, defined by ITU-T Recommendation G.652 and optimized for 1310 nm.
G.654.E
G.654.E is a category of cut-off shifted single-mode optical fiber defined by the ITU-T, combining ultra-low attenuation with a large effective area for terrestrial 100 Gbit/s long-haul transmission.
G.711
G.711, titled Pulse code modulation of voice frequencies, is an ITU-T standard, first published in 1972, specifying the companded 8-bit digital encoding of telephone speech at 64 kbit/s used in the PSTN and voice over IP.
G.722
G.722 is an ITU-T speech coding standard, first approved in 1988, that transmits 7 kHz wideband audio over a 64 kbit/s channel using sub-band ADPCM.
G.723.1
G.723.1 is an ITU-T speech coding standard approved in 1996 that compresses speech to 5.3 or 6.3 kbit/s and served as the mandatory audio codec for H.324 videotelephony.
G.726
G.726 is an ITU-T speech coding standard, approved in 1990, that converts 64 kbit/s PCM voice to adaptive differential pulse code modulation at 40, 32, 24, and 16 kbit/s.
G.fast
G.fast, short for Fast access to subscriber terminals, is a DSL standard approved in 2014 that delivers up to 1 Gbit/s over copper lines shorter than 500 meters.
G.G. Allen Steam Plant
The G.G. Allen Steam Plant, also called the Allen Steam Station, was a five-unit coal-fired power plant in Belmont, North Carolina, owned by Duke Energy Carolinas.
G&L Musical Instruments
G&L Musical Instruments is an American guitar and bass manufacturer in Fullerton, California, founded by Leo Fender, which produced instruments from 1980 until its closure in 2025.
G12 (solar wafer)
G12 is a standard monocrystalline silicon solar wafer measuring 210 mm × 210 mm, the largest square format in mainstream photovoltaic manufacturing, introduced by Zhonghuan Semiconductor in 2019.
G15 Shenyang–Haikou Expressway
The G15 Shenyang–Haikou Expressway, known as the Shenhai Expressway, is a national expressway in China running along the coast from Shenyang, Liaoning, to Haikou, Hainan.
G2.com, Inc.
G2.com, Inc., formerly G2 Crowd, is a Chicago-based B2B software marketplace and review platform founded in 2012, where verified users review and score business software.
g2o
g2o (General Graph Optimization) is an open-source C++ framework for optimizing graph-based nonlinear least squares problems, created for robotics and computer vision and used by ORB-SLAM2 and ORB-SLAM3.
g³ (gas mixture)
g³, pronounced g-cubed, is a dielectric and arc-quenching gas mixture of carbon dioxide, oxygen, and fluoronitrile developed by GE Vernova and 3M to replace SF₆.
G42
G42 is an Abu Dhabi-based technology holding company, set up around 2018 to lead the emirate's technology push and overseen by a UAE royal family member.
G6 howitzer
The G6 howitzer, often called the G6 Rhino, is a South African 155 mm wheeled self-propelled gun-howitzer built by Denel, first used in combat in 1987.
GA-BP neural network
A GA-BP neural network is a hybrid training method in which a genetic algorithm finds good initial weights and thresholds that backpropagation then fine-tunes by gradient descent.
GaAs thin-film solar cell
A GaAs thin-film solar cell is a lightweight, flexible photovoltaic device whose few-micrometer gallium arsenide layer is separated from its wafer, usually by epitaxial lift-off, reaching 29.1% efficiency.
Gab (social network)
Gab is an American social network launched by Andrew Torba in 2016 that bills itself as a free-speech alternative to mainstream platforms and hosts far-right content.
Gabardine
Gabardine is a tightly woven, steep-diagonal twill fabric used for suits, uniforms, and rainwear, best known as Thomas Burberry's weatherproofed cloth of 1879 and the Burberry trench coat.
Gabčíkovo–Nagymaros Dams
The Gabčíkovo–Nagymaros Dams were a planned system of dams, locks, and hydroelectric plants on the Danube, agreed by Czechoslovakia and Hungary in 1977; only the Gabčíkovo portion was completed.
Gabion
A gabion, from the Italian gabbione meaning big cage, is a wire mesh basket filled with rock or soil and stacked into retaining walls, channel linings, and erosion controls.
Gable roof
A gable roof is a roof with a central ridge sloping in two directions, forming a triangular gable at each end wall; it is one of the two most common sloped roof types.
Gabor C. Temes
Gabor C. Temes is a Hungarian-born electrical engineer, professor at Oregon State University, known for pioneering work on switched-capacitor circuits and delta-sigma data conversion, elected to the National Academy of Engineering in 2015.
Gabor filter
A Gabor filter is a linear image filter, a sinusoidal wave modulated by a Gaussian envelope, that measures local orientation and frequency in images for texture analysis and biometric recognition.
Gabor transform
The Gabor transform is a time-frequency analysis method, the short-time Fourier transform taken with a Gaussian window, showing how a signal's frequencies change over time.
Gabriel Chike Ejebe
Gabriel Chike Ejebe is an American electric power systems engineer and Senior Project Manager at OATI in Minneapolis, elected to the National Academy of Engineering in 2018.
Gabriel Voisin
Gabriel Voisin (1880–1973) was a French aviation pioneer and aircraft manufacturer whose biplanes set early records and whose firm built thousands of WWI bombers before he turned to making Avions Voisin luxury automobiles.
GAC Group (广州汽车集团股份有限公司)
GAC Group, also known as Guangzhou Automobile Group, is a Chinese state-owned automaker in Guangzhou running joint ventures with Honda and Toyota and self-developed brands Trumpchi, Aion, and Hyptec.