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Impeller
An impeller is the rotating, vaned component of a pump, compressor, or water turbine that transfers energy from the drive shaft to a fluid, raising its velocity and pressure.
Imperative programming
Imperative programming, also known as the imperative paradigm, is a programming paradigm where a program is a sequence of statements that change program state, in contrast to declarative programming.
Imperial (automobile)
Imperial was Chrysler Corporation's top-line luxury automobile, first a Chrysler model from 1926, then a separate make from 1955 to 1975 meant to compete with Cadillac and Lincoln.
Imperial Airship Scheme
The Imperial Airship Scheme was a British government program announced in 1924 to link the empire by airship, ending when the R101 crashed in France in 1930.
Imperial Airways
Imperial Airways was a British airline formed in 1924 by a government-promoted merger of four carriers, flying routes across the British Empire until it merged into BOAC in 1940.
Imperial Brands
Imperial Brands, formerly Imperial Tobacco Group, is a British multinational tobacco company headquartered in Bristol, selling 160 brands including Davidoff and West across roughly 120 markets.
Imperial Canal (California–Mexico)
The Imperial Canal, also known as the Alamo Canal, was a gravity-diversion canal built in 1900 and 1901 to bring Colorado River water into California's Imperial Valley.
Imperial Chemical Industries
Imperial Chemical Industries (ICI) was a British chemical company formed in 1926, one of the UK's largest manufacturers until Akzo Nobel acquired it in 2008.
Imperial Hotel, Tokyo
The Imperial Hotel, Tokyo (帝国ホテル東京) is a luxury hotel in Hibiya, Tokyo, established in 1890 as Japan's guest house and known for its Frank Lloyd Wright building of 1923.
Imperial Irrigation District
The Imperial Irrigation District is a publicly chartered irrigation and electric utility in Imperial County, California, formed in 1911 and the largest single user of Colorado River water.
Imperial Japanese Navy Air Service (大日本帝国海軍航空隊)
The Imperial Japanese Navy Air Service (大日本帝国海軍航空隊) was the aviation arm of the Imperial Japanese Navy from 1916 until its dissolution at the end of 1945.
Imperial Oil
Imperial Oil is a Canadian integrated oil company founded in 1880 in London, Ontario, majority-owned by Exxon Mobil and marketing under the Esso and Mobil brands.
Imperial Palace, Tokyo
The Imperial Palace, Tokyo (Kōkyo), is the residence of the Emperor of Japan, built on the site of Edo Castle and home to the Emperor since 1868.
Impinj
Impinj is a Seattle-based technology company, founded in 2000 by Chris Diorio and Carver Mead, that sells RAIN RFID chips, readers, and software for wirelessly tracking everyday items.
Implementation
Implementation is the software engineering stage in which a designed system is built and made executable, spanning coding, testing, integration, and deployment into its operational environment.
Implenia
Implenia is a Swiss construction and real estate company formed in 2006 by the merger of Batigroup and Zschokke, specializing in large-scale tunnelling and underground works.
Implicit bias of gradient descent
Implicit bias of gradient descent is the tendency of gradient descent to select particular loss-minimizing solutions, such as low-norm or max-margin ones, without explicit regularization.
Implicit Q-Learning
Implicit Q-Learning (IQL) is an offline reinforcement learning algorithm introduced by Ilya Kostrikov, Ashvin Nair, and Sergey Levine in October 2021, achieving state-of-the-art results on D4RL.
Implosion-type nuclear weapon
An implosion-type nuclear weapon is a fission bomb design in which high explosives compress a subcritical pit of plutonium or uranium into a supercritical chain reaction.
Imply (company)
Imply Data, Inc. is a Burlingame, California software company founded in 2015 by the original creators of Apache Druid (Fangjin Yang, Gian Merlino, Vadim Ogievetsky), selling Polaris, Enterprise, and Lumi; it raised $100M Series D in 2022 at a $1.1B valuation and remains private. Not the Brazilian Imply technology firm founded 2003.
Imposition
Imposition is the printing step of arranging pages on a press sheet so that, once printed, folded, and trimmed, they fall into correct reading order in the finished book or pamphlet.
Impregilo
Impregilo S.p.A. was an Italian construction and civil engineering company headquartered in Milan, formed by merger in 1994, known for dams and metros worldwide, and renamed Salini Impregilo in 2014.
Imprensa Régia
The Imprensa Régia, also written Impressão Régia, was the royal printing office established in Rio de Janeiro in May 1808 by decree of D. João, the first press in Portuguese America.
Imprimerie nationale
The Imprimerie nationale, called IN Groupe since 2018, is the French state printing office, founded in 1640, holding the state monopoly on producing passports, visas, and identity cards.
Imprint lithography
Imprint lithography is a nanofabrication method that patterns a polymer resist by pressing a mold into it, replicating features cheaply and being tested for NAND flash chip manufacturing.
Improved cookstove
An improved cookstove is a cooking stove that replaces open fires and rudimentary stoves by burning biomass fuel more completely, reducing fuel use, smoke, and health harm.
Improved Mobile Telephone Service
Improved Mobile Telephone Service (IMTS) was a pre-cellular analog radiotelephone system in the United States, introduced in 1964, that gave car phones direct dialing before cellular service replaced it.
Improvised explosive device
An improvised explosive device (IED), often called a roadside bomb or homemade bomb, is a cheap, simply designed bomb made from commercial products or military munitions.
Improvised firearm
An improvised firearm, also known as an improvised gun or Paliuntod, is a gun made by hand from materials like pipe and scrap metal rather than manufactured industrially.
Impulse Space
Impulse Space is an American in-space mobility company founded in 2021 in Redondo Beach, California, by Tom Mueller, SpaceX's first employee, building spacecraft that move payloads between orbits.