All articles starting with U
6,146 articles
u-blox ZED-F9P
The u-blox ZED-F9P is a multi-band GNSS receiver module by u-blox of Thalwil, Switzerland, announced in 2018 as the first mass-market receiver using GPS, GLONASS, Galileo, and BeiDou together for centimeter-level RTK accuracy.
U-boat
U-boat, from the German Unterseeboot (undersea boat), is the English term for German military submarines of the World Wars, whose Atlantic campaigns sank over 5,000 ships in the First and 3,500 in the Second.
U-box domain
U-box domain: a ~70-amino-acid modified RING-finger E3 ubiquitin ligase domain lacking zinc coordination, stabilized by hydrogen bonds and salt bridges; prototype yeast Ufd2 (E4); 8 human U-box E3s including CHIP and PRP19.
U-duality
U-duality is the largest discrete duality symmetry of string theory and M-theory on a torus, combining T-duality with S-duality; for M-theory on T^d the group is E_d(d)(Z).
U-ENDURE trial
U-ENDURE (NCT03345823) is AbbVie's phase 3, 52-week randomized withdrawal maintenance trial of oral upadacitinib 15 mg and 30 mg versus placebo in Crohn's disease responders to U-EXCEL/U-EXCEED induction, showing superior clinical remission and endoscopic response.
U-factor
The U-factor, or thermal transmittance, is the rate of heat flow through a building assembly or glazing per unit area and temperature difference, the reciprocal of R-value.
U-God
U-God, also known as Golden Arms, is the stage name of Lamont Jody Hawkins, an American rapper and founding member of the Wu-Tang Clan, formed on Staten Island in the early 1990s.
U-Haul
U-Haul is an American moving and storage company founded in 1945 that rents trucks and trailers and runs one of the largest self-storage networks in North America.
U-Haul lesbian
U-Haul lesbian: lesbian-culture slang and stereotype for moving in with a new partner almost immediately, from the Lea DeLaria second-date joke, popularized via her 1997 album Box Lunch and 1990s TV.
U-KISS (유키스)
U-KISS (유키스), Korean International Idol Superstar, is a second-generation K-pop boy group formed in 2008 under NH Media, known for "Man Man Ha ni," Japanese Oricon success with "Tick Tack" and the No. 1 album "Action," and now a three-member lineup under Tango Music.
U-Maqoma
U-Maqoma was a nineteenth-century Xhosa chief and war leader of the AmaNgqika clan, a foremost figure of resistance to British colonial expansion who died on Robben Island in 1873.
U-matic
U-matic is an analog videocassette format using 3/4-inch tape, developed by Sony with Matsushita and JVC and released in the early 1970s as the first cassette-based videotape format.
U-Net
U-Net is a convolutional neural network for image segmentation, published in 2015 by Olaf Ronneberger, Philipp Fischer, and Thomas Brox at the University of Freiburg.
U-Samson
U-Samson (uSamson) was a short Xhosa-language novel by Samuel Edward Krune Mqhayi, published in South Africa in 1907. It is recognized as the first Xhosa novel, and no copy survives.
U-space
U-space is the European regulatory framework and set of digital services for managing drone traffic alongside manned aviation, based on regulations applicable from 26 January 2023.
U-statistic
A U-statistic is an estimator averaging a kernel function over all subsamples of fixed size m from the data, introduced by Wassily Hoeffding in 1948 and underlying the Mann–Whitney and Wilcoxon tests.
U-Tapao International Airport
U-Tapao International Airport (ท่าอากาศยานอู่ตะเภา), also called U-Tapao Rayong-Pattaya International Airport, is a joint civil-military airport in Rayong Province, Thailand, near Pattaya, built as a US air base in 1966 and now slated for major expansion.
U-turn
A U-turn is a driving maneuver in which a vehicle turns around to proceed in the opposite direction, distinct from the three-point turn used on narrower roads.
U. A. Khader
U. A. Khader (യു.എ. ഖാദർ), full name Ussangaantakathu Abdul Khader, was an Indian Malayalam writer of fiction about rural Malabar, known for Thrikkottur Peruma; he died in 2020.
U. Benjamin Kaupp
U. Benjamin Kaupp, born 1949, is a biophysical chemist at the University of Bonn and Max Planck Institute known for work on ion channels in sensory cells and sperm.
U. G. Krishnamurti (ఉప్పలూరి గోపాల కృష్ణమూర్తి)
U. G. Krishnamurti, born Uppaluri Gopala Krishnamurti, was an Indian speaker and writer who denied enlightenment, rejected the guru role, and described his own transformation as a bodily "natural state".
U. R. Ananthamurthy
U. R. Ananthamurthy (1932–2014) was an Indian writer, critic, and professor who pioneered the Navya modernist movement in Kannada literature and won the Jnanpith Award in 1994.
U. Sagayam
U. Sagayam (Ubagarampillai Sagayam), retired Tamil Nadu cadre IAS officer, exposed the Madurai granite mining scam as collector and as Madras High Court special commissioner, estimating losses over Rs 1 lakh crore.
U. T. Khader (ಯು. ಟಿ. ಖಾದರ್ ಫರೀದ್)
U. T. Khader (ಯು. ಟಿ. ಖಾದರ್ ಫರೀದ್), born 1969, is an INC politician representing Mangalore in the Karnataka Assembly since a 2007 by-election; former health and urban development minister, Speaker until August 2026, then Shivakumar cabinet minister.
U. V. Swaminatha Iyer
U. V. Swaminatha Iyer (உ. வே. சாமிநாதையர்), known as Tamil Thatha, was a Tamil scholar who recovered classical Tamil literature from palm-leaf manuscripts, publishing annotated editions from 1887 to 1937.
U.D.O.
U.D.O. is a European power metal band formed in 1987 by singer Udo Dirkschneider after he left Accept, and it still tours on Accept classics like "Balls to the Wall".
U.K. (band)
U.K. (band): British progressive rock supergroup, 1977–1980, formed by John Wetton and Bill Bruford of King Crimson with Eddie Jobson and Allan Holdsworth; albums U.K., Danger Money, Night After Night; Terry Bozzio replaced Bruford; reunions 2011–2015.
U.N.C.L.E.
U.N.C.L.E. (United Network Command for Law and Enforcement) is the fictional spy agency of The Man from U.N.C.L.E. (NBC, 1964-68), fielding agents Napoleon Solo and Illya Kuryakin against THRUSH, later revived in a 1983 TV movie and a 2015 film.
U.P. Rajya Vidyut Utpadan Nigam
U.P. Rajya Vidyut Utpadan Nigam (UPRVUNL) is the wholly owned thermal power generation company of the Government of Uttar Pradesh, India, incorporated in 1980 and operating coal-fired stations at Anpara, Obra, Parichha, and Harduaganj.
U.S. Acres
U.S. Acres (Orson's Farm outside the U.S., Orson's Place in Canada) is a Jim Davis comic strip about barnyard animals led by Orson Pig, launched March 3, 1986 in 505 newspapers and ended in 1989, later animated in Garfield and Friends.