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Lay-up process (composite manufacturing)
Lay-up is a composite manufacturing method in which layers of fiber reinforcement and resin are stacked on a tool and consolidated into a solid laminate, the baseline route for aerospace structures.
Layang Oil and Gas Field
The Layang Oil and Gas Field is an operating oil and gas field in Block SK10, offshore Sarawak, Malaysia, producing natural gas since 2017 and crude oil since 2019.
Laycan
Laycan, short for laydays/canceling, is the two-date window in a voyage charterparty within which a vessel must arrive at the load port and be ready to load.
Layer 2 Tunneling Protocol
The Layer 2 Tunneling Protocol (L2TP) is an Internet standard, specified in RFC 2661 in 1999, that tunnels PPP frames across IP networks, commonly paired with IPsec in VPNs.
Layer jamming
Layer jamming, also called laminar jamming, is a variable-stiffness technique in soft robotics where compressed stacked layers lock together by friction and stiffen a structure.
Layer normalization
Layer normalization is a deep learning technique that standardizes a neural network layer's activations per example, introduced by Jimmy Lei Ba and Geoffrey Hinton in 2016 and widely used in transformers.
Layer picking
Layer picking is a warehouse automation method in which a robotic gripper lifts whole layers of cases between pallets, building mixed rainbow pallets for food and retail distribution.
Layer-wise relevance propagation
Layer-wise relevance propagation (LRP) is an explainability technique for neural networks that decomposes a prediction into relevance scores per input component, introduced by Bach and colleagues in 2015.
Layered double hydroxide electrocatalysts
Layered double hydroxide electrocatalysts are catalysts made from layered double hydroxides, two-dimensional anionic clays, used in water splitting, especially the oxygen evolution reaction for hydrogen production.
Laying of the Indo-European telegraph cables (Red Sea and India routes)
The Red Sea and India telegraph routes were submarine cables laid from 1859 to 1870 to connect Britain with India via the Mediterranean and Red Sea.
Layout versus schematic
Layout versus schematic (LVS) is a physical verification check in integrated circuit design that compares the layout netlist with the schematic to verify the layout implements the intended circuit.
Laytime
Laytime is the period contractually allowed to a charterer for loading and discharging cargo under a voyage charterparty, after which the charterer pays demurrage to the shipowner.
Layyah power station
Layyah power station, also written Al Layyah power plant (محطة كهرباء اللية), is a gas-fired power and water desalination station in Sharjah, UAE, owned by SEWA.
Lazy Dog (bomb)
The Lazy Dog, also called the Red Dot Bomb, was a small unguided kinetic antipersonnel projectile dropped from United States aircraft in the Korean and Vietnam Wars.
Lazy evaluation
Lazy evaluation, also called call by need, is an evaluation strategy that delays computing an expression until its value is required, allowing infinite data structures and defaulting in Haskell and R.
Lazy loading
Lazy loading is a web performance technique that defers loading of non-critical resources, usually images and iframes, until needed, typically when the user scrolls them near the viewport.
LB&SCR E2 class
The LB&SCR E2 class, or Billinton E2, was a class of ten 0-6-0 tank steam locomotives designed by Lawson Billinton and built at Brighton Works between 1913 and 1916.
LBJ Express (I-635, Dallas)
The LBJ Express is a system of dynamically priced tolled express lanes along 13 miles of Interstate 635 and part of I-35E in north Dallas, opened in 2015.
LCD television
An LCD television, also known as an LCD TV, is a flat-panel television using a liquid crystal display panel with a backlight, the dominant TV technology since the 2000s.
LCROSS
LCROSS (Lunar Crater Observation and Sensing Satellite) was a NASA mission that crashed a Centaur rocket into a lunar polar crater in 2009, confirming water ice.
LCVP (United States)
The Landing Craft, Vehicle, Personnel (LCVP), widely known as the Higgins boat, was an American wooden landing craft that carried 36 troops ashore, used from D-Day to Korea.
LDAC
LDAC is a proprietary audio coding technology developed by Sony for streaming high-resolution audio over Bluetooth. It transmits about three times the data of the standard SBC codec, allowing 96 kHz/24-bit playback.
LDACS
LDACS (L-band Digital Aeronautical Communication System) is a broadband terrestrial air-ground data link for civil aviation in the L-band around 1 GHz, offering far greater capacity than the current VDLm2 link.
LDMOS
LDMOS, or laterally diffused metal oxide semiconductor, is a power MOSFET structure and the dominant silicon technology for high-power RF amplifiers in cellular base stations below 3 GHz.
LDMOS power amplifier
An LDMOS power amplifier is a radio-frequency power amplifier built around a laterally diffused MOSFET transistor, the standard device for cellular base stations and broadcast transmitters since the 1990s.
Le Chat
Le Chat is an AI assistant built by the French company Mistral, launched in web beta in 2024 and positioned as Europe's alternative to ChatGPT.
Le Corbusier
Le Corbusier, born Charles-Édouard Jeanneret in Switzerland in 1887, was a Swiss-born French architect and leading figure of twentieth-century modern architecture, known for Villa Savoye and Chandigarh.
Le Creuset
Le Creuset is a French cookware manufacturer founded in 1925 in Fresnoy-le-Grand, best known for its enameled cast-iron Dutch ovens and its signature orange Flame color.
Le Havre FSRU
The Le Havre FSRU was France's first floating LNG import terminal, a moored ship injecting gas into the French grid from late 2023 to January 2026.
Le Méridien
Le Méridien, also known as Le Méridien Hotels and Resorts, is a hotel brand founded by Air France in 1972 and now owned by Marriott International.