All articles starting with X
1,563 articles
XSKY (北京星辰天合)
XSKY (北京星辰天合), formally Beijing XSKY Technology Co., Ltd., is a Beijing data storage software company founded in 2015 that builds software-defined and distributed storage systems and filed for a Hong Kong listing in 2026.
XSLT
XSLT (Extensible Stylesheet Language Transformations) is a declarative, XML-based W3C language for transforming XML documents, expressed as stylesheets executed by a processor, with versions 1.0, 2.0, and 3.0.
Xspray Pharma AB
Xspray Pharma AB is a Swedish pharmaceutical technology company in Solna, founded in 2003, that develops amorphous versions of marketed cancer drugs using its HyNap particle technology.
XSTest
XSTest is a benchmark of 250 hand-crafted safe prompts that look risky, released in August 2023 to measure exaggerated safety behavior, meaning over-refusal, in large language models.
Xtampak
Xtampak (Santa Rosa Xtampak), Maya archaeological zone in Hopelchén, Campeche, Mexico; Chenes regional capital 600-900 AD, over 100 buildings, 44-room Palace with two interior staircases, stelae dated 646-911 CE.
Xtant Medical Holdings
Xtant Medical Holdings, formerly Bacterin, Inc., is a Belgrade, Montana medical technology company making orthobiologics and spinal implant fixation systems; founded in 1998 as a Montana State University spinout, it trades on NYSE American as XTNT.
XTB S.A.
XTB S.A., formerly X-Trade Brokers, is a Polish online broker headquartered in Warsaw, listed on the Warsaw Stock Exchange since 2016, offering stocks, ETFs, and CFDs.
XTC
XTC were an English new wave band from Swindon led by Andy Partridge and Colin Moulding, formed mid-1970s, known for Drums and Wires, Skylarking, Dear God, and ceasing touring in 1982.
XTE J1118+480
XTE J1118+480, also known as KV Ursae Majoris, is a black hole X-ray binary discovered by the Rossi X-ray Timing Explorer in 2000, the first firmly identified black hole system in the Galactic halo.
XTE J1550-564
XTE J1550-564, also designated V381 Nor, is a low-mass X-ray binary in the constellation Norma with a confirmed stellar-mass black hole, discovered in 1998 by RXTE.
XTE J1650-500
XTE J1650-500 is a Galactic low-mass X-ray binary containing a stellar-mass black hole, discovered by RXTE in 2001 and observed through a single outburst in 2001-2002.
XTE J17464-3213
XTE J17464-3213, also known as H1743-322, is a recurrent transient low-mass X-ray binary near the Galactic center harboring a stellar-mass black hole, discovered in 1977 and prone to repeated X-ray outbursts.
XTE J1859+226
XTE J1859+226, also known as V406 Vul, is a Galactic black hole X-ray transient discovered by the Rossi X-Ray Timing Explorer on October 9, 1999.
Xtend
Xtend is an Israeli-founded defense-technology company, founded in Tel Aviv in 2018, that builds AI-guided drones and ground robots controlled through its proprietary XOS operating system.
Xtep
Xtep (特步) is a Chinese multi-brand sportswear company founded in 2001 in Jinjiang, Fujian, by Ding Shuibo, known for its 160X running shoes and listed in Hong Kong since 2008.
Xterminator
Xterminator Records is a Jamaican reggae and dancehall label founded by producer Philip 'Fatis' Burrell, whose stable of Sizzla, Luciano, and Capleton drove the mid-1990s roots revival.
Xtoh Mons
Xtoh Mons is a 110-km-diameter mountain on Venus at 39.70°N, 194.20°E in the Ganiki Planitia quadrangle (V-14), named by the IAU in 2006 for the Quiche (Guatemala) goddess of weather and rain; its lobate flows and radiating dike lineaments predate plains unit pr3.
Xtreme
Xtreme is a New York bachata duo of Danny Mejia and Steven Tejada, formed in 2003, whose 2006 album Haciendo Historia went platinum on the strength of "Shorty, Shorty".
Xtreme Pro Wrestling
Xtreme Pro Wrestling (XPW), founded 1999 in Los Angeles by porn producer Rob Black and Lizzie Borden, was a hardcore wrestling promotion tied to Extreme Associates that pushed sex and violence beyond ECW, warred with CZW in Philadelphia in 2002, and collapsed amid obscenity prosecution.
XTTS
XTTS is a family of open text-to-speech and voice-cloning models by Coqui, released in 2023 and best known through XTTS-v2, which clones a voice from a short audio clip in 17 languages.
Xtube
Xtube was a Canadian adult video-sharing website, launched in 2006, that let users upload and sell amateur pornographic videos; it was shut down by MindGeek in 2021.
XTX Markets
XTX Markets is a London-based algorithmic market-making firm founded in 2015 by Alexander Gerko, quoting prices in equities, currencies, and cryptocurrencies, with over $250 billion traded daily.
Xu Anqi
Xu Anqi (许安琪), born 1992 in Nanjing, is a Chinese right-handed épée fencer; Olympic team gold 2012 and silver 2016, world team champion 2015 and 2019, three-time Olympian.
Xu Beihong
Xu Beihong (徐悲鸿, 1895–1953) was a Chinese painter and art educator born in Yixing, Jiangsu, who studied in France from 1919 to 1927 and promoted Western academic realism to reform Chinese painting.
Xu Bing (徐冰)
Xu Bing (徐冰), Chinese contemporary conceptual artist born 1955 in Chongqing, known for Book from the Sky (4,000+ false characters), Square Word Calligraphy, Book from the Ground, Phoenix, and Dragonfly Eyes; MacArthur Fellow 1999, former CAFA vice president.
Xu Can
Xu Can (徐灿, courtesy name Xiangpin, ca. 1610–1678) was a Chinese woman ci poet and painter of the late Ming and early Qing often compared with Li Qingzhao.
Xu Cao
Xu Cao is a molecular bone-biology researcher who is the Lee Riley Professor of Orthopaedic Surgery at Johns Hopkins, known for work on bone remodeling and osteoarthritis.
Xu Chao
Xu Chao (徐潮, 1647–1715) was a Qing dynasty official from Hangzhou who rose under the Kangxi Emperor to Minister of Revenue and Minister of Personnel, capping surtaxes in Henan.
Xu Chenye
Xu Chenye, also known as Daniel Xu (许晨晔), is a Chinese executive who co-founded Tencent in Shenzhen in 1998 and serves as Chief Information Officer.
Xu Chu
Xu Chu (许褚), courtesy name Zhongkang, was a warrior of the late Han dynasty famed for his strength who became the chief personal guard of Cao Cao.