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Exeed Sterra ET (星纪元)
The Exeed Sterra ET (星纪元ET) is a mid-to-large electric SUV from Chery's premium Exeed brand, launched in China in May 2024 and exported as the Exlantix ET.
Exelon
Exelon Corporation is a Chicago-based American utility holding company formed in 2000, serving more than 10.7 million electric and gas customers through six regulated utilities.
Exercise Red Flag
Exercise Red Flag, also known as Operation Red Flag, is a realistic US Air Force air combat training exercise run from Nellis AFB, Nevada, since 1975.
Exergy analysis
Exergy analysis is a second-law thermodynamic method that quantifies the useful work potential destroyed or lost in energy systems, ranking components by inefficiency to guide design improvement.
ExFAT
ExFAT (extensible File Allocation Table) is a Microsoft file system and the successor to FAT32, standard on SDXC memory cards and used for large files on USB drives.
Exhaust air heat pump
An exhaust air heat pump is an air-source heat pump that recovers heat from a building's ventilation exhaust air; because its capacity is limited, it needs a supplementary heat source.
Exhaust fan
An exhaust fan is a ventilation device that draws moist air, odors, and pollutants out of a room and discharges them outside, most often in bathrooms and kitchens.
Exhaust gas
Exhaust gas, also known as car exhaust or tailpipe emissions, is the mixture of gases and particles that leaves an internal combustion engine or boiler after fuel burns.
Exhaust gas recirculation
Exhaust gas recirculation (EGR) is an engine emission control technique that routes exhaust gas back into the intake, cutting combustion temperatures and nitrogen oxide emissions in diesel and gasoline engines.
Exhaust system
An exhaust system is the set of pipes and components that carries engine combustion gases to the tailpipe, using mufflers to cut noise and catalytic converters to cut pollution.
Exhaust system (steam locomotive)
The exhaust system of a steam locomotive, known as the front end, uses exhaust steam to draw air through the fire, setting the locomotive's power and fuel use.
Exide Industries
Exide Industries Limited, incorporated in 1947, is an Indian storage battery manufacturer headquartered in Kolkata, making lead-acid batteries for automotive and industrial applications and building a lithium-ion cell business.
Exide Technologies
Exide Technologies is a battery manufacturer founded in 1888 as the Electric Storage Battery Company, split into separate Americas and European businesses after its 2020 bankruptcy.
Exif
Exif, or Exchangeable Image File Format, is a standard for metadata embedded in image files such as JPEG and TIFF, recording camera settings, timestamps, and GPS location.
Existential type
An existential type packages a value with a hidden type and operations on it, the type-theoretic account of abstract data types, formalized by Mitchell and Plotkin in 1985.
EXIT chart
An EXIT chart, or extrinsic information transfer chart, is a graphical tool predicting the convergence of iterative decoding schemes, introduced by Stephan ten Brink around 1999.
EXL2 and ExLlamaV2
ExLlamaV2 is an MIT-licensed library for running local large language models on consumer NVIDIA GPUs, and EXL2 is its mixed-precision quantization format storing weights at 2 to 8 bits.
Exmor
Exmor is a Sony brand name for its CMOS image sensors, first applied in 2007 to designs with column-parallel A/D conversion and later extended to back-illuminated and stacked variants.
Exo commuter rail
Exo, officially the Réseau de transport métropolitain (RTM), is Greater Montreal's public transit authority, operating five commuter rail lines with 52 stations since it replaced the AMT in 2017.
exocad
exocad is a German dental CAD/CAM software company in Darmstadt, founded in 2010 as a Fraunhofer IGD spinoff and acquired by Align Technology, maker of Invisalign, in 2020.
Exocet
The Exocet is a family of French anti-ship cruise missiles produced by MBDA, launched from ships, aircraft, submarines, and ground platforms, with over 4,000 missiles built by 2024.
ExoMars
ExoMars, the ExoMars Programme, is a European Space Agency Mars exploration program seeking signs of past life, combining the 2016 Trace Gas Orbiter with a rover launching in 2028.
ExoMars Rosalind Franklin rover
Rosalind Franklin is a European Space Agency ExoMars rover that will drill up to 2 meters into Mars to look for signs of past and present life, launching in 2028.
ExoMars Trace Gas Orbiter
The ExoMars Trace Gas Orbiter (TGO) is a European Space Agency Mars orbiter, launched jointly with Roscosmos in 2016 to measure methane and other trace gases in the Martian atmosphere.
Exosat
Exosat, short for European X-ray Observatory SATellite, was a European Space Agency X-ray astronomy observatory launched in May 1983 that operated until 1986 and discovered quasi-periodic oscillations.
Expandable tubulars
Expandable tubulars are steel pipes and liners that are mechanically expanded in situ after being run into an oil or gas wellbore, keeping downhole size for zonal isolation and casing repair.
Expanded granular sludge bed digestion
Expanded granular sludge bed digestion is a high-rate anaerobic wastewater treatment process using a tall upflow reactor of granular sludge, developed from the UASB reactor in the late 1980s.
Expanded polystyrene
Expanded polystyrene (EPS) is a rigid, closed-cell thermoplastic foam made from polystyrene beads and about 98 percent air, used mainly for protective packaging, building insulation, and temperature-controlled containers.
Expanded rubber
Expanded rubber, also called sponge rubber, is a flexible cellular rubber produced by expanding a vulcanizable rubber compound with a gas-releasing blowing agent during curing.
Expander cycle
The expander cycle is a closed rocket-engine cycle in which hydrogen heated in the cooling jacket drives the turbine, with no gas generator, used in the RL10.