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Nonlocal metasurface
A nonlocal metasurface is an optical or mechanical surface built from subwavelength elements whose response depends on the incident wave vector, enabling resonant functions like spatial differentiation and edge detection.
Nonnegative matrix factorization
Nonnegative matrix factorization (NMF) approximates a nonnegative data matrix as the product of two smaller nonnegative matrices, giving additive, parts-based representations used for dimensionality reduction, topic extraction, and source separation.
Nonpoint source pollution
Nonpoint source pollution is water pollution from diffuse runoff of rainfall or snowmelt over land, rather than from a pipe, and it pollutes most impaired US waters.
Nonprehensile manipulation
Nonprehensile manipulation is robotic manipulation of objects without grasping them, using pushing, sliding, rolling, and flicking; its systematic study began with Matthew T. Mason's 1986 mechanics of pushing.
Nonreciprocal mechanical metamaterials
Nonreciprocal mechanical metamaterials are architected materials that push back differently when loaded from opposite sides, breaking classical reciprocity through engineered geometry and nonlinearities, with uses in mechanical diodes and one-way wave control.
Nonreciprocal metamaterials
Nonreciprocal metamaterials are artificial composite materials in which waves pass differently in each direction, enabling devices like isolators, circulators, and one-way mirrors for light and sound.
Nonsmooth contact dynamics
Nonsmooth contact dynamics is the branch of mechanics that models velocity jumps, set-valued forces, and discontinuities from impacts and Coulomb friction, applied to granular materials, masonry, and robotics.
Nonsolvent-induced phase separation
Nonsolvent-induced phase separation, also known as NIPS or wet-phase inversion, is a membrane fabrication process in which solvent-nonsolvent exchange demixes a cast polymer solution into a porous membrane.
NonStop (server computers)
NonStop, also known as Integrity NonStop, is a family of fault-tolerant server computers created by Tandem Computers in 1976 and now sold by Hewlett Packard Enterprise.
Nonsuch Palace
Nonsuch Palace, a Tudor royal palace built by Henry VIII from 1538 in Surrey on the cleared village of Cuddington, famed for Renaissance stucco panels, unfinished at his death, and demolished in the 1680s.
Noor Energy 1
Noor Energy 1 is a 950 MW hybrid solar power plant in Dubai, the fourth phase of the Mohammed bin Rashid Al Maktoum Solar Park.
Noor Ouarzazate Solar Complex
The Noor Ouarzazate Solar Complex, also called the Ouarzazate Solar Power Station, is a concentrated solar power complex near Ouarzazate, Morocco, with about 580 MW of capacity.
Noordoostpolder
The Noordoostpolder, or Northeast Polder, is a polder in the Dutch province of Flevoland reclaimed from the Zuiderzee between 1936 and 1942 as part of the Zuiderzee Works.
Noordwaard Polder depoldering
The Noordwaard Polder depoldering (ontpoldering Noordwaard) is a Dutch flood-risk project completed in 2015, which reopened about half of a 4,450-hectare polder near Werkendam to the Nieuwe Merwede river.
NoordzeeWind
NoordzeeWind is a Dutch offshore wind company, formed by Shell and Nuon, that built the Netherlands' first offshore wind farm at Egmond aan Zee, commissioned in 2007.
Nooros Gas Field
Nooros is a natural gas and condensate field in the Nile Delta of Egypt, discovered by Eni in 2015 and Egypt's largest active gas project.
Nooteboom
Nooteboom (Koninklijke Nooteboom Group) is a Dutch family-owned manufacturer of trailers for abnormal road transport, founded in 1881 as a blacksmith's shop near Rotterdam and now headquartered in Wijchen.
NOR gate
A NOR gate is a digital logic gate whose output is high only when all its inputs are low; it performs the complement of OR and is a universal gate.
Nord 4.1201 to 4.1272
The Nord 4.1201 to 4.1272 were 72 French 2-8-2 tank locomotives designed by Marc de Caso and built from 1932 to 1935, hauling Paris suburban trains until 1970.
Nord Pool
Nord Pool is a European power exchange headquartered at Lysaker, Norway, that operates day-ahead and intraday wholesale electricity markets in 15 countries, describing itself as the world's first power exchange and majority owned by Euronext.
Nord Stream
Nord Stream, also known as the North European Gas Pipeline, is a pair of undersea gas pipelines from Russia to Germany, destroyed by sabotage in 2022.
Nord Stream 2
Nord Stream 2 is a Gazprom-led Baltic Sea gas pipeline from Russia to Germany, completed in September 2021 but never placed into service, then damaged in 2022 explosions.
NordBalt
NordBalt is a 700 MW high-voltage direct current submarine electricity interconnector linking Klaipėda in Lithuania and Nybro in Sweden, owned by Litgrid and Svenska kraftnät and in service since 2016.
Norddeutscher Lloyd
Norddeutscher Lloyd, known in English as North German Lloyd, was a major German shipping company founded in Bremen in 1857 and merged with Hapag in 1970.
Norden bombsight
The Norden bombsight, also known as the Norden sight, was a gyrostabilized optical bombsight by Carl L. Norden, used by American bombers from the 1930s into the 1960s.
Nordex
Nordex is a German wind turbine manufacturer specializing in onshore turbines. Founded in 1985 in Denmark, it has installed over 57 GW of capacity in more than 40 markets.
Nordholz Naval Airbase
Nordholz Naval Airbase is a German Navy air base in Lower Saxony, a principal airship port from 1914 and home of the Naval Air Command since 1964.
Nordic Combat Uniform
The Nordic Combat Uniform (NCU) is a layered combat uniform system procured jointly by Norway, Denmark, Finland, and Sweden through NORDEFCO, signed with supplier Oskar Pedersen AS in 2022.
Nordic Mobile Telephone
Nordic Mobile Telephone (NMT, Nordisk MobilTelefoni) was a first-generation analog cellular system developed by the Nordic countries, launched in 1981 as the world's first multinational mobile standard.
Nordic nRF52
The Nordic nRF52 Series is a family of multiprotocol Bluetooth system-on-chips from Nordic Semiconductor, pairing an Arm Cortex-M4F CPU with an integrated 2.4 GHz radio transceiver.