All articles A–Z
519,064 articles
DualDisc
DualDisc is a two-sided music disc introduced by major record labels in 2004, pairing a CD album with DVD-Audio, videos, and other DVD content on one disc.
Dualism
Dualism is the philosophy of mind theory that mind and body are fundamentally different kinds of things, most famously advanced by Descartes in his Meditations of 1641.
Dualite
Dualite is a rare yellow zircono-titanosilicate mineral of the eudialyte group, approved by the International Mineralogical Association in 2005 and found at Mount Alluaiv, Russia.
Duality (optimization)
Duality in optimization, notably Lagrangian duality, pairs a primal minimization problem with a dual maximization problem whose value bounds the primal and usually equals it for convex problems.
Dualizing sheaf
The dualizing sheaf is a coherent sheaf on a Noetherian scheme representing duality on coherent sheaves, generalizing the canonical bundle to singular spaces and underlying Serre and Grothendieck duality.
DualShock
The DualShock, also known as Sony DualShock, is a line of PlayStation game controllers by Sony defined by two analog sticks and vibration feedback, introduced in 1997.
Duan Chengshi
Duan Chengshi (段成式), courtesy name Kegu, was a Tang dynasty literatus and official who died in 863, best known as the author of the thirty-juan miscellany Youyang Zazu.
Duan Clan of Dali
The Duan Clan of Dali (大理段氏) was the former royal house of the Dali kingdom, which the Mongols retained as hereditary Dali zongguan administrators of western Yunnan from 1274.
Duan inkstone
The Duan inkstone (端砚) is a Chinese inkstone carved from Duan stone quarried at Zhaoqing, Guangdong, and prized since the Tang dynasty for grinding ink finely.
Duan Jiong's suppression of the Qiang
Duan Jiong's suppression of the Qiang (段颎平羌) was a series of Eastern Han campaigns from 159 to 169 in which general Duan Jiong crushed rebellious Qiang tribes.
Duan Qirui
Duan Qirui (段祺瑞) was a Chinese warlord and statesman who led the Anhui clique and served as premier and head of state of the Republic of China.
Duan Shao
Duan Shao (段韶), courtesy name Xiaoxian, was a general and statesman of Northern Qi who defended Jinyang against Zhou and Turkic armies, relieved the siege of Luoyang, and died as Left Chancellor and Prince of Pingyuan.
Duan Siping
Duan Siping (段思平) was a military officer of the late Nanzhao kingdom who founded the Kingdom of Dali in 937, overthrowing Yang Ganzhen's Dayining state.
Duan Wenzhen
Duan Wenzhen (段文振) was a Sui dynasty general and Minister of War under Emperor Yang, who died in camp during the Liaodong campaign against Goguryeo.
Duan Yongji
Duan Yongji (段永基), born 1946, is a Chinese electronics entrepreneur who led Beijing's Stone Group, dominated Chinese-character word processing in the 1980s, and steered its bet on Sina.
Duan Yongping
Duan Yongping (段永平), born in 1961, is a Chinese entrepreneur who founded Subor and BBK Electronics, the source of OPPO and vivo, and later became a value investor in the United States.
Duan Yucai
Duan Yucai (段玉裁, 1735–1815) was a Qing dynasty philologist and classicist, a student of Dai Zhen, whose commentary on the Han dictionary Shuowen jiezi became the standard annotation.
Duanchang Ji
Duanchang Ji (断肠集), or Collection of Broken Guts, is a Song dynasty poetry collection by woman poet Zhu Shuzhen, compiled after her death in 1182.
Duane A. Compton
Duane A. Compton is an American cell and cancer biologist who served as Dean of Dartmouth's Geisel School of Medicine and studies chromosomal instability in tumors.
Duane Allen
Duane Allen (born 1943, Taylortown, Texas) is lead singer of the Oak Ridge Boys since 1966, a classically trained vocalist who led the gospel quartet's shift to country, co-producer of its later albums, and member of the Country Music Hall of Fame.
Duane Allman
Duane Allman (1946–1971), nicknamed Skydog, was an American slide guitarist and session musician who founded and led the Allman Brothers Band from 1969 until his death in a Macon, Georgia motorcycle crash at 24; also famed for Muscle Shoals session work and Eric Clapton's Layla album.
Duane Arnold nuclear power plant
The Duane Arnold nuclear power plant is a single-unit boiling water reactor in Palo, Iowa, that operated from 1974 to 2020 and is planned to restart by 2029.
Duane Arnold Solar
Duane Arnold Solar, later renamed Pleasant Creek Solar, is a 200 MW solar farm with 75 MW of battery storage in Linn County, Iowa, completed in 2024.
Duane Chapman
Duane Chapman, "Dog the Bounty Hunter" (born 1953, Denver), is an American bail bondsman and bounty hunter who captured Andrew Luster in Mexico in 2003 and starred in A&E's Dog the Bounty Hunter (2004–2012).
Duane Eddy
Duane Eddy (1938-2024), American guitarist nicknamed the Sultan of Twang, pioneer of instrumental rock's twang sound on Gretsch 6120 bass strings; 15 Top 40 hits 1958-63, Rebel Rouser, Peter Gunn, Rock and Roll Hall of Fame 1994.
Duane Hanson
Duane Hanson (1925–1996) was an American sculptor best known for life-size, lifelike figures of ordinary Americans, cast from live models and dressed in real clothes so convincingly that museum visitors mistake them for living people.
Duane Henry
Duane Henry (born 1985, Birmingham, England) is an English actor known for playing MI6 officer Clayton Reeves on NCIS (2016–2018), and for roles in The Dark Knight Rises, Captain Marvel, and The Road to Guantanamo.
Duane Jones
Duane Jones (1937 or 1936 – 1988) was an American actor and educator, best known as Ben in Night of the Living Dead (1968), the first horror film with a Black lead hero; also starred in Ganja & Hess and Losing Ground.
Duane Kuang
Duane Kuang is a founding managing partner of Qiming Venture Partners, the Shanghai venture capital firm he co-founded in 2006, known for investments including Xiaomi, Roborock, and WeRide.
Duane Ludwig
Duane "Bang" Ludwig (born 1978), American MMA coach and retired kickboxer and MMA fighter; held the UFC's fastest-knockout record with a six-second KO of Jonathan Goulet (2006), later 2013 Coach of the Year at Team Alpha Male and founder of Bang Muay Thai.