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Technology and the built world

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LS Electric

LS Electric (엘에스일렉트릭) is a South Korean manufacturer of electric power equipment and industrial automation systems, founded in 1974 and part of the LS Group. Its products span switchgear, transformers, HVDC transmission systems, and railway signaling.

LS Power Development

LS Power Development is a New York-based, family and employee-owned company that develops, acquires, and operates North American power generation and high-voltage transmission since its 1990 founding.

LS-DYNA

LS-DYNA is a general-purpose finite element software package for simulating large-deformation static and dynamic structural response, best known for crashworthiness, occupant safety, and metal forming simulation.

LTE (telecommunication)

LTE (Long-Term Evolution) is a wireless broadband standard for mobile devices developed by 3GPP, first specified in Release 8 in 2008 and marketed worldwide as 4G, with about 4.5 billion subscriptions by 2026.

LTE Advanced

LTE Advanced (LTE-A) is the enhancement of the LTE mobile broadband standard introduced in 3GPP Release 10 to meet the ITU's 4G requirements, officially designated IMT-Advanced in January 2012.

LTE Broadcast

LTE Broadcast is the commercial name for delivering the same content simultaneously to many users over an LTE cellular network using eMBMS, suited to live video at crowded events.

LTE Direct

LTE Direct is a device-to-device proximal discovery technology developed by Qualcomm and standardized in 3GPP LTE Release 12, letting phones discover nearby services within about 500 meters.

LTE frequency bands

LTE frequency bands, also known as LTE bands, are the numbered radio-frequency ranges, defined in 3GPP specification TS 36.101, in which LTE (4G) equipment operates.

LTE TDD

LTE TDD, also marketed as TD-LTE, is the time division duplex variant of the LTE mobile broadband standard, in which uplink and downlink share one frequency in different time slots.

LTE-M

LTE-M, or enhanced machine-type communication (eMTC), is a low-power wide-area cellular technology for battery-powered IoT devices, standardized in 3GPP Release 13, supporting mobility, voice, and 10-year battery targets.

LTIMindtree

LTIMindtree is an Indian technology consulting and digital solutions company headquartered in Mumbai, formed in 2022 through the merger of LTI and Mindtree and renamed LTM Limited in 2026.

LTPO

LTPO (low-temperature polycrystalline oxide) is a thin-film transistor backplane for OLED displays that combines LTPS and oxide transistors to cut power consumption at low refresh rates.

LTPS TFT

An LTPS TFT is a thin-film transistor whose channel is low-temperature polycrystalline silicon, crystallized on glass below 600 °C; its high mobility makes it the standard backplane for smartphone and wearable OLED and LCD displays.

LTspice

LTspice, also known as SwitcherCAD, is a free SPICE circuit simulator, schematic capture program, and waveform viewer developed by Linear Technology and now maintained by Analog Devices.

LTV A-7 Corsair II

The LTV A-7 Corsair II, also known as the Vought A-7, is an American carrier-capable light attack aircraft developed from the F-8 Crusader and flown from 1967 to 2014.

LTV XC-142

The LTV XC-142 was an American experimental tilt-wing V/STOL transport, built in five examples in the 1960s for a joint Army, Navy, and Air Force program.

LTX Video

LTX Video is a family of open-weights, diffusion-transformer video generation models by Lightricks. It supports text, image, and audio-video generation at up to 4K/50 FPS.

Lu Ke

Lu Ke (卢柯, born 1965) is a Chinese materials scientist at the Institute of Metal Research, Chinese Academy of Sciences, known for nano-twin strengthening and gradient nanostructures in metals.

Lu'an power station

Lu'an power station is a coal-fired power station in Yu'an District, Lu'an, Anhui Province, China, with two 660 MW ultra-supercritical Huadian units commissioned in 2014.

Lu'an Wangzhuang Coal Mine

Wangzhuang Coal Mine (王庄煤矿) is a large underground coal mine at Changzhi in Shanxi, China, operated by Lu'an Group and known for thick-seam mining technology trials.

Lua

Lua is a lightweight, embeddable scripting language created in 1993 at PUC-Rio in Brazil by Roberto Ierusalimschy, Luiz Henrique de Figueiredo, and Waldemar Celes, designed to extend host programs.

Luanhe Cogen power station

Luanhe Cogen power station is a coal-fired cogeneration plant in Chengde, Hebei, China, founded in 1958 and now running three 330 MW units for 990 MW total.

Luas

Luas is the light rail tram system serving Dublin, Ireland, opened in 2004 and running on two lines, the Red Line and the Green Line.

Luau (programming language)

Luau is a fast, gradually typed scripting language derived from Lua 5.1, developed by Roblox as the scripting language for its platform and open-sourced in 2021.

Lubiatowo-Kopalino nuclear power plant

The Lubiatowo-Kopalino nuclear power plant is a planned station in Choczewo commune, Pomerania, which will be Poland's first, with three Westinghouse AP1000 reactors totaling 3,750 MWe.

Lublin Coal Basin

The Lublin Coal Basin (Lubelskie Zagłębie Węglowe, LZW) is a Carboniferous hard coal basin in eastern Poland, mined since 1982 at its only active mine, LW Bogdanka.

Lubmin FSRU

The Lubmin FSRU was a floating storage and regasification unit at the port of Lubmin on Germany's Baltic coast, injecting LNG into the German grid from January 2023.

Lubnor

Lubnor, or Refinaria Lubrificantes e Derivados do Nordeste, is a small specialty oil refinery owned by Petrobras in Fortaleza, Ceará, Brazil, inaugurated in 1966 as Asfor.

Lubricant

A lubricant is any material applied between surfaces in relative motion to reduce friction and wear; liquid lubricants such as engine oils are the most widely used type.

Lubricating oil

Lubricating oil is a petroleum-derived or synthetic liquid applied between moving surfaces to reduce friction and wear, and it also removes heat, seals out contaminants, and inhibits corrosion.