All articles starting with U
6,146 articles
Uniforms of the Confederate States Armed Forces
Uniforms of the Confederate States Armed Forces: Civil War army and navy dress of the CSA, from the 1861 cadet gray regulations to butternut-dyed, captured-blue, and Richmond Depot shell jackets.
Uniforms of the German Army (1935–1945)
Uniforms of the German Army (1935–1945), Heer feldgrau uniforms of the Wehrmacht: M36 feldbluse, wartime M40/M43/M44 simplifications, Schiffchen cap, HBT hot-weather wear, and 1937–1945 camouflage including Leibermuster.
Uniforms of the Imperial Japanese Army
Uniforms of the Imperial Japanese Army, 1868-1945: Western-style dress from the Boshin War, the Model 90 (1930) and Model 98 (1938) service uniforms, collar rank patches, field equipment, and tropical clothing.
Uniforms of the Indian Armed Forces
Uniforms of the Indian Armed Forces: Army, Navy, and Air Force dress from colonial khaki origins (Corps of Guides, 1846) through post-independence olive green to the 2022 digital combat uniform and Army Uniforms-2026 code.
Uniforms of the Royal Navy
Uniforms of the Royal Navy: regulated dress first prescribed for officers in April 1748, dark blue from civilian fashion (origin of 'navy blue'), with ratings' uniform from 1857, slops from 1627, and WRNS/WRINS dress.
Uniforms of the Russian Armed Forces
Uniforms of the Russian Armed Forces, regulated by Presidential Decree 293 (2010) and MoD Order 525 (2020): categories, rank insignia, and the uniform's evolution from the 1918 Red Army to 2026 rule changes.
Uniforms of the United States Air Force
Uniforms of the United States Air Force: regulated by DAFI 36-2903, ranging from OCP duty uniforms to blue service dress. First distinctive shade #84 blue uniform issued from 1950 after Army Quartermaster control; notable changes include the 1991 McPeak uniform and 2025-2026 guidance memoranda.
Uniforms of the United States Army
Uniforms of the United States Army: regulated combat (OCP ACU), service (ASU blues, AGSU greens), and mess/dress wear governed by AR 670-1, tracing from Washington's 1779 blue order to the 2018-2027 green uniform transition.
Uniforms of the United States Marine Corps
Uniforms of the United States Marine Corps: dress blues, service, and MCCUU utility uniforms under MCO 1020.34H. Distinctive blood stripe (Chapultepec 1847), 1804 gold buttons, proprietary MARPAT camouflage, and NexGen MCCUU testing in 2026.
Uniforms of the United States Navy
Uniforms of the United States Navy: the regulated clothing of U.S. Sailors under NAVPERS 15665J, from the 1776 Marine Committee regulation through the NWU Type III and the 2025-reestablished Navy Uniform Board.
UniFrac
UniFrac is a beta diversity distance metric in microbiome research, introduced by Catherine Lozupone and Rob Knight in 2005, that measures the fraction of phylogenetic tree branch length unique to one of two microbial communities.
UnifyApps
UnifyApps is a New York-based enterprise AI startup founded in 2023 by Pavitar Singh, former Sprinklr CTO, connecting corporate systems to large language models for automation and AI agents.
Unigel
Unigel is a Brazilian chemical and petrochemical group founded in São Paulo in 1966 by Henri Slezynger, once Latin America's largest styrenics producer, in judicial recovery since 2025.
Unihertz Jelly series
The Unihertz Jelly series is a line of unusually small Android smartphones made by Unihertz, starting in 2017 with a 2.45-inch 4G phone funded on Kickstarter for $79.
Unihertz Titan
The Unihertz Titan is a rugged Android smartphone with a fixed physical QWERTY keyboard, released through Kickstarter in 2019 by Shanghai-based Unihertz and modeled closely on the BlackBerry Passport.
Unikernel
A unikernel is a small, single-address-space machine image that compiles an application with only the operating system libraries it needs into one binary running directly under a hypervisor.
Unikitty!
Unikitty! is a Cartoon Network animated series (2017–2020) spun off from The LEGO Movie character, developed by Ed Skudder and Lynn Wang, with 104 eleven-minute 2D episodes and a LEGO toy line.
Unilateral adrenalectomy
Unilateral adrenalectomy is the surgical removal of one adrenal gland, performed to cure hormone overproduction from that gland, chiefly primary aldosteronism, cortisol-producing adenoma, and pheochromocytoma.
Unilateral Declaration of Egyptian Independence
The Unilateral Declaration of Egyptian Independence was a British statement of 28 February 1922 ending the protectorate and recognizing Egypt as an independent sovereign state.
Unilateral ocular duplication
Unilateral ocular duplication (triophthalmia, unilateral diplophthalmia) is a rare embryonic defect with a duplicated eye on one side, always with CNS and craniofacial anomalies, epilepsy, and intellectual disability.
Unilateral polymicrogyria
Unilateral polymicrogyria (unilateral PMG, ORPHA:268943) is a cerebral cortical malformation with excessive small folds and abnormal layering on one side of the brain; hemispheric or focal subtypes, perisylvian predominance, epilepsy, genetic or acquired causes.
Unilever
Unilever, British-Dutch multinational consumer goods company formed 1 January 1930 from the Lever Brothers and Margarine Unie merger; sells Dove, Knorr, Hellmann's and other brands in 190 countries; €50.5 billion 2025 turnover; demerged Ice Cream as The Magnum Ice Cream Company in December 2025.
Unilumin
Unilumin Group Co., Ltd. (洲明科技) is a Shenzhen-based Chinese manufacturer of LED displays and lighting, founded in 2004 and listed on the Shenzhen Stock Exchange since 2011.
UNIM-104
UNIM-104, a coded polyherbal Unani electuary (Maʿjūn) from India's CCRUM, dosed 5 g twice daily for 90 days; preliminary trials in non-alcoholic fatty liver (Tashahhum-e-Kabid) reported symptom relief, improved liver CT attenuation, and no adverse effects.
UNIM-401 (with topical UNIM-403)
UNIM-401 (oral) and UNIM-403 (topical neem-camphor oil) are coded Unani formulations for psoriasis; an AIIMS non-inferiority RCT found them non-inferior to PUVA sol with fewer side effects (2% vs 16.4%).
UniMás
UniMás (formerly TeleFutura) is TelevisaUnivision's second US Spanish-language broadcast network, launched January 14, 2002, rebranded January 7, 2013, targeting Hispanics 18-34 with sports, dramas and reality from Televisa, Caracol and RTI.
Unimate
Unimate was the first industrial robot, a hydraulic robotic arm by George Devol and Joseph Engelberger first used at a General Motors plant in 1961.
Unimicron
Unimicron (欣兴电子), or Unimicron Technology Corporation, is a Taiwanese printed circuit board and IC package substrate manufacturer founded in 1984, supplying Nvidia, Intel, Google, and Amazon.
Unimodular gravity
Unimodular gravity is a modification of general relativity that fixes the metric determinant, making the cosmological constant an integration constant rather than an action parameter.
Unimog
The Unimog is a Mercedes-Benz range of all-wheel-drive utility vehicles with portal axles and implement attachments, first series-produced in 1949, with more than 375,000 built for farming, municipal, firefighting, and road-rail work.