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Localized high-concentration electrolyte
A localized high-concentration electrolyte is a battery electrolyte made by diluting a concentrated lithium-salt electrolyte with a non-coordinating diluent, preserving concentrated-electrolyte interfacial chemistry at lower viscosity and cost.
Localizer Performance with Vertical Guidance
Localizer Performance with Vertical Guidance (LPV) is a GPS-based instrument approach using WAAS, flown like an ILS to a decision altitude as low as 200 feet.
Locally linear embedding
Locally linear embedding (LLE) is an unsupervised algorithm for nonlinear dimensionality reduction that maps high-dimensional data into a low-dimensional, neighborhood-preserving embedding, introduced by Roweis and Saul in 2000.
Locally listed building
A locally listed building is a building in England placed on a local heritage list by a local planning authority, a non-statutory designation covering assets of local heritage significance.
Location allocation model
A location allocation model is an operations research and facility-planning method that simultaneously chooses facility sites and assigns demand points to them, minimizing demand-weighted distance or cost.
Location area
A location area (LA) is a group of adjacent radio cells in a GSM or UMTS cellular network within which the network knows a mobile phone's approximate position.
Location identifier
A location identifier is a short code, usually three or four letters, standing in for an airport or facility in reservations, air traffic control, and weather reporting.
Locational marginal price
The locational marginal price (LMP) is the wholesale price of electric energy at a specific grid location, comprising energy, congestion, and loss components, used by RTOs and ISOs since 1998.
Lochinvar
Lochinvar is a freshwater loch in Kirkcudbrightshire, Scotland, about 3.5 miles from St John's Town of Dalry, converted into an impounding reservoir for public water supply in the 1960s.
Lochnagar mine
The Lochnagar mine, or Lochnagar crater, was a British explosive charge detonated under German lines at La Boisselle on 1 July 1916, opening the Battle of the Somme.
Lock (water navigation)
A lock, also called a ship lock or navigation lock, is an enclosed chamber with gates that raises or lowers boats between stretches of water at different levels.
Lock and Dam No. 1
Lock and Dam No. 1, also called the Ford Dam, is a lock and hydroelectric dam on the Mississippi River between Minneapolis and St. Paul, completed in 1917.
Lock and Dam No. 1 (Mississippi River)
Lock and Dam No. 1 is a twin-chamber lock and dam on the Mississippi River in Minneapolis, Minnesota, operated by the Army Corps of Engineers and completed in 1917.
Lock and Dam No. 19
Lock and Dam No. 19, also known as the Keokuk Dam, is a navigation lock and hydroelectric dam on the Mississippi River at Keokuk, Iowa, privately built in 1913.
Lock gates and operating mechanisms
Lock gates and operating mechanisms are the gates, valves, and drive machinery that close a navigation lock's chamber and let water in and out, moving vessels between water levels.
Lock keeper
A lock keeper, also called a lock tender or lock operator, operates a canal or river lock, raising and lowering boats between stretches of water at different levels.
Lock-and-dam navigation works
A lock-and-dam navigation work pairs a dam that maintains a minimum-depth pool with locks that lift or lower vessels, turning a free-flowing river into a staircase of navigable pools.
Lock-in thermography
Lock-in thermography (LIT) is an infrared nondestructive testing method in which heating is periodically modulated and detected, first published in 1988 and used on solar cells and integrated circuits.
LockBit
LockBit is a ransomware-as-a-service operation whose affiliates split ransoms with its developers; it was the world's most deployed ransomware until law enforcement disrupted it in February 2024.
Lockfile
A lockfile is a file generated by a package manager recording the exact resolved versions of all dependencies, so installs reproduce the same dependency set despite registry changes.
Lockheed A-12
The Lockheed A-12, known as the A-12 Oxcart, was a single-seat Mach 3 reconnaissance aircraft built for the CIA by Lockheed's Skunk Works and flown from 1967 to 1968.
Lockheed AC-130
The Lockheed AC-130, also known as Pave Spectre, is a heavily armed United States Air Force gunship built from the C-130 Hercules, first flown in combat over Vietnam in 1967.
Lockheed AH-56 Cheyenne
The Lockheed AH-56 Cheyenne, also known as the AH-56A Cheyenne, was a prototype high-speed attack helicopter developed for the United States Army, canceled in 1972 before production.
Lockheed bribery scandals
The Lockheed bribery scandals, also called the Lockheed affair, were the 1975 and 1976 revelations that Lockheed paid at least $25 million in bribes to foreign officials.
Lockheed C-130 Hercules
The Lockheed C-130 Hercules, also known as the TP 84, is a four-engine turboprop tactical airlifter that first flew in 1954, with over 2,700 delivered to 63 nations.
Lockheed C-141 Starlifter
The Lockheed C-141 Starlifter was a four-engine US Air Force jet strategic transport, the first jet designed to military standards for troops and cargo, serving from 1965 to 2006.
Lockheed C-5 Galaxy
The Lockheed C-5 Galaxy is a large American strategic airlift aircraft, the largest in the US Air Force inventory, serving since 1970 and carrying up to 270,000 pounds.
Lockheed Constellation
The Lockheed Constellation, nicknamed the Connie, is a four-engine pressurized piston airliner designed by Lockheed for TWA in 1939, recognizable by its dolphin-shaped fuselage and triple tail.
Lockheed Corporation
The Lockheed Corporation, originally the Lockheed Aircraft Company, was an American aerospace and defense company founded in 1926 that merged into Lockheed Martin in 1995.
Lockheed CP-140 Aurora
The Lockheed CP-140 Aurora is a long-range maritime patrol aircraft of the Royal Canadian Air Force, combining the P-3C Orion airframe with S-3A Viking avionics.