All articles starting with K
16,083 articles
Keyboard technology
Keyboard technology covers how computer keyboards convert a keypress into a character, from switch types and layouts to USB HID reports, rollover limits, and latency.
Keychain
A keychain, also called a keyring, is a small device, usually a metal split ring, that holds keys together and attaches them to a pocket, bag, or belt.
Keychain (software)
Keychain, also called Apple Keychain, is the encrypted credential-storage system built into Apple's operating systems, storing passwords, cryptographic keys, and certificates, with iCloud Keychain syncing them across devices.
KeyCorp
KeyCorp is a Cleveland, Ohio-based bank holding company whose main subsidiary, KeyBank, traces its roots to 1832 and held about $187 billion in assets at the end of 2024.
Keye Luke (陆锡麟)
Keye Luke (陆锡麟, 1904-1991), Chinese-American actor and artist: Lee Chan in the Charlie Chan films, original Kato in The Green Hornet serials, Master Po on Kung Fu, and a Hollywood commercial artist.
Keyence
Keyence Corporation (株式会社キーエンス) is a Japanese maker of factory automation equipment, including sensors, machine-vision systems, and measuring instruments, founded by Takemitsu Takizaki in 1974 and serving over 350,000 customers in about 110 countries.
Keyera
Keyera Corp. is a Canadian midstream energy company based in Calgary, Alberta, that gathers and processes natural gas and operates NGL infrastructure around Edmonton and Fort Saskatchewan.
Keygen
Keygen was an HTML form element, invented by Netscape, that generated a public/private key pair on form submission; it has been removed from all major browsers.
Keyhole limpet hemocyanin
Keyhole limpet hemocyanin (KLH) is a very large copper-containing protein from the hemolymph of the giant keyhole limpet, used widely in immunology as a carrier protein and model antigen.
Keyhole Markup Language
Keyhole Markup Language (KML): XML format for geographic annotation and visualization in Earth browsers, created by Keyhole Inc. for EarthViewer, adopted by Google in 2004, OGC standard since 2008 (KML 2.2, then 2.3).
Keyhole porosity dynamics in laser powder bed fusion
Keyhole porosity is a void defect in laser powder bed fusion metal printing, formed when the laser's vapor cavity collapses and traps bubbles that degrade fatigue life.
Keyi Pharmaceutical (科弈药业)
Keyi Pharmaceutical (科弈药业) is a Chinese biotechnology company founded in 2018 and based in Anji County, Zhejiang, developing bispecific antibodies, nano bispecific ADCs, and CAR-T therapies for tumor immunotherapy.
Keying (signal modulation)
Keying is a digital modulation method that switches a carrier signal's amplitude, frequency, or phase between discrete states to encode digital data, yielding ASK, FSK, and PSK.
Keyliane Abdallah
Keyliane Hikram Abdallah (born 2006) is a French left-footed right winger for Olympique de Marseille, nephew of Toifilou Maoulida, who rose via a 2026 loan to Gimnàstic de Tarragona into Marseille's 2026/27 rotation.
Keylor Navas
Keylor Navas (Keilor Antonio Navas Gamboa), Costa Rican goalkeeper born 1986; starred at 2014 World Cup, won three Champions Leagues with Real Madrid, later PSG, Nottingham Forest, Newell's, and Pumas UNAM.
Keymed Biosciences (康诺亚生物)
Keymed Biosciences (康诺亚) is a Chinese biopharmaceutical company founded in Chengdu in 2016, listed in Hong Kong since 2021, known for the antibody drug stapokibart.
Keynesian beauty contest
A Keynesian beauty contest is a competition won by anticipating others' average judgment, from Keynes's 1936 analogy to investors pricing assets by forecasting market opinion.
Keynesian cross
The Keynesian cross, also called the expenditure-output model, is a macroeconomic diagram that determines equilibrium real GDP where planned expenditure equals output, formulated after Keynes's 1936 General Theory.
Keynesian economics
Keynesian economics, also known as Keynesian theory, is the school of macroeconomic thought founded on John Maynard Keynes's work, which holds that demand drives short-run output and employment.
Keynote (presentation software)
Keynote, also known as Apple Keynote, is Apple's presentation software for Mac, iPhone, iPad, and web browsers, unveiled in 2003 as a rival to Microsoft PowerPoint.
KEYNOTE B36 trial
KEYNOTE B36 (EF-36, NCT04892472): Novocure-sponsored phase 2 pilot trial of Tumor Treating Fields (150 kHz, NovoTTF-200T) plus pembrolizumab versus pembrolizumab alone as first-line treatment of PD-L1-positive advanced or metastatic NSCLC; amended to randomized design, later terminated.
KEYNOTE-001 trial
KEYNOTE-001 (NCT01295827) was pembrolizumab's first-in-human phase 1 trial in advanced solid tumors, melanoma, and NSCLC; its 1260-patient multi-cohort design supported the drug's first two FDA accelerated approvals and the 22C3 companion diagnostic.
Keynsham
Keynsham, Somerset, a town between Bristol and Bath, site of the possible Roman town Traiectus at Somerdale, the Durley Hill courtyard villa excavated 1922-24, and medieval Keynsham Abbey.
Keyon Martin
Keyon Martin (born 2001, Fort Lauderdale, FL) is a Baltimore Ravens cornerback, #38, 5-9, 171 lb, from Youngstown State and Louisiana-Lafayette; undrafted 2025, 23 tackles and 1 sack as a rookie.
Keyouzhong power station
Keyouzhong power station, also known as Xing'an Meng Youzhong power station, is a 1,320 MW coal-fired power station in Hinggan League, Inner Mongolia, China, operating since 2022.
Keyphrase extraction
Keyphrase extraction is a natural language processing method that identifies the small set of phrases best describing a document, returning a ranked list drawn from the text.
Keypoint detection
Keypoint detection is a computer vision method that identifies distinctive points of interest, such as corners, in an image so the same locations can be found again in other images.
Keypunch
A keypunch is a keyboard-operated machine that punches data onto cards for tabulating machines and early computers, standard from the early 1900s to the 1970s.
Keyron Crawford
Keyron Crawford (born 2003) is an NFL defensive end, Memphis native, drafted 67th overall in 2026 by the Las Vegas Raiders after Arkansas State and Auburn, third-team All-SEC in 2025.
Keys of Heaven
The Keys of Heaven, also called the Keys of St. Peter, are the keys Christ promised to Peter in Matthew 16:19, symbolizing the Church's authority.