All articles starting with S
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Supercritical fluid chromatography–mass spectrometry
Supercritical fluid chromatography–mass spectrometry (SFC–MS) is an analytical technique that separates compounds using supercritical carbon dioxide and identifies them by mass spectrometry, widely used in pharmaceutical research and lipidomics.
Supercritical fluid extraction
Supercritical fluid extraction (SFE) is a separation process that uses fluids above their critical point, usually carbon dioxide, to extract compounds for coffee decaffeination, hop extraction, and flavor recovery.
Supercritical fluid extraction–supercritical fluid chromatography
Supercritical fluid extraction–supercritical fluid chromatography (SFE-SFC) is an analytical workflow that extracts analytes with supercritical carbon dioxide, then separates them directly on an SFC column.
Supercritical methanol method
The supercritical methanol method, also called the Saka method, is a catalyst-free process for making biodiesel, introduced in 2001 by Shiro Saka and Dadan Kusdiana at Kyoto University.
Supercritical steam cycle
A supercritical steam cycle is a Rankine power cycle operating above water's critical point of 374 °C and 22.1 MPa, the standard high-efficiency configuration of large coal-fired power plants.
Supercritical water gasification
Supercritical water gasification (SCWG) is a thermochemical process that converts wet biomass and waste into hydrogen-rich gas with water above its critical point, requiring no drying.
Supercritical water gasification of biomass
Supercritical water gasification (SCWG) of biomass is a thermochemical process that gasifies wet biomass in water above its critical point into hydrogen-rich gas, pioneered at MIT in 1978.
Supercritical water oxidation
Supercritical water oxidation is a waste treatment method that destroys organic contaminants in water above its critical point, converting them to carbon dioxide and water.
Supercritical water reactor
The supercritical water reactor (SCWR) is a Generation IV nuclear reactor concept whose water coolant operates above 374 °C and 22.1 MPa, reaching about 45% thermal efficiency.
Supercruise
Supercruise, also called super cruising or supersonic cruising, is sustained supersonic flight on engine thrust alone, without the fuel-hungry afterburner; the F-22 demonstrated it in 1999.
Supercup
Supercup: a short football competition matching the winners of a region's two main competitions. Covers the UEFA Super Cup (since 1973), CAF Super Cup (1993, Al Ahly record 8 titles), and the Egyptian Super Cup (2001, Al Ahly 16 titles).
Superdeformation
Superdeformation is an extreme, stable elongation of an atomic nucleus into a prolate ellipsoid roughly 2:1 in axis ratio, first seen as fission isomers in the actinides.
Superdelegate
Superdelegates, formally unpledged party leaders and elected officials, are Democratic convention delegates seated by office or party position rather than primaries. Created by the 1982 Hunt Commission, first used in 1984, barred from first-ballot voting in 2018.
Superdense coding
Superdense coding, also known as quantum dense coding, is a quantum communication protocol that transmits two classical bits by sending one qubit, proposed by Bennett and Wiesner in 1992.
Superdeterminism
Superdeterminism: quantum interpretations that explain Bell-test correlations locally and deterministically by rejecting statistical independence between hidden variables and measurement settings. Coined by John Bell; key model is 't Hooft's Cellular Automaton Interpretation; criticized as conspiratorial, defended by Hossenfelder and Palmer.
Superdollar
A superdollar, also called a supernote, is a high-quality counterfeit US $50 or $100 bill, first detected in the Philippines in 1989 and often passing ordinary inspection.
Superdrag
Superdrag is a power pop band from Knoxville, Tennessee, formed in 1992 by John Davis, known for the 1996 hit "Sucked Out" from Regretfully Yours on Elektra, later Arena Rock albums, breakups, and reunions.
Superdry
Superdry is a British premium casualwear brand and retailer founded in 2003 by Julian Dunkerton and James Holder, known for vintage Americana styling with Japanese graphics, floated in 2010, restructured after heavy losses, and now trading as Superdry & Co.
Superelevation
Superelevation, also called banking, is the cross slope built into a roadway on a horizontal curve, supplying part of the lateral acceleration needed to follow it and serving as a controlling design criterion in highway engineering.
Superestrella
Superestrella is a 2025 song by Spanish singer Aitana from Cuarto azul, written with Gale and Nico Cotton; never a single, it became Spain's 2026 World Cup anthem and a Billboard and LOS40 number one.
Superettan
Superettan, Sweden's second-tier men's football league since 2000, formed by merging Division 1 Norra and Södra; 16 clubs, 30 rounds, top two promoted to Allsvenskan.
Superexchange
Superexchange is a magnetic exchange interaction between magnetic ions too far apart to couple directly, mediated by virtual electron hopping through a non-magnetic ion such as oxygen.
SuperF*ckers
SuperF*ckers is a James Kochalka satirical superhero comic from Top Shelf (2005–2007, issues 271–279) and its 2012–2013 Cartoon Hangover animated web series of 12 five-minute episodes directed by Fran Krause.
Superfakes
Superfakes is an upcoming A24/UCP crime drama series created by Alice Ju for Peacock, starring Lucy Liu as a Chinatown counterfeit dealer drawn into New York's black market; filming began January 2026, expected 2027, UK on Sky and NOW.
Superfamilies 3–6 helicases (SF3–SF6)
Superfamilies 3–6 helicases (SF3–SF6) are the four classes of hexameric helicases, ring-shaped enzymes that couple ATP hydrolysis to movement of nucleic acid through a central channel.
Superfamily 1 helicases
Superfamily 1 (SF1) helicases, also called Superfamily 1 RNA helicases, are motor proteins that use ATP to unwind DNA or RNA during replication, repair, recombination, and RNA processing.
Superfast!
Superfast! is a 2015 American parody comedy spoofing the Fast and the Furious franchise, written and directed by Jason Friedberg and Aaron Seltzer, starring Alex Ashbaugh and Dale Pavinski, budgeted at $20 million and grossing about $2 million.
Superfecundation
Superfecundation: fertilization of two or more ova from the same cycle by sperm from separate acts of intercourse; heteropaternal superfecundation means twins with different fathers, confirmed by DNA testing, distinct from superfetation.
Superfest
Superfest, originally marketed as CEVERIT, was a chemically strengthened drinking glass made in East Germany from 1980 to 1990, several times more durable than ordinary glass.
Superficial bacterial folliculitis
Superficial bacterial folliculitis, also called Bockhart impetigo, is a Staphylococcus aureus infection of the hair follicle opening causing pustules; treated with topical mupirocin, clindamycin, or benzoyl peroxide, distinct from deep boils.