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Ocelote Oil and Gas Field
The Ocelote Oil and Gas Field (Campo Ocelote) is an oil field in the Llanos Orientales basin of Colombia, operated by Hocol since its discovery in 2007.
Ocensa Oil Pipeline
The Ocensa Oil Pipeline (Oleoducto Central) is Colombia's largest crude oil pipeline, an 836-kilometer line from the Cusiana and Cupiagua fields in Casanare to Coveñas on the Caribbean coast.
Och Oil and Gas Field
Och Oil and Gas Field is a light crude oil field in Mexican Gulf of Mexico waters, discovered in 1985, operated by Pemex, and developed with the Uech and Kax fields.
Ochigufu Oil Field
Ochigufu Oil Field is a deepwater oil field about 150 km offshore Angola, discovered by Eni in 2014 and producing 24,000 barrels per day since 2018.
OCI Global
OCI Global, formerly OCI N.V., is a Netherlands-based chemical company that grew out of Egypt's Orascom group and has been selling its nitrogen and methanol assets since 2023.
OCLC
OCLC, also known as Online Computer Library Center, is a nonprofit library organization in Dublin, Ohio, founded in 1967, serving nearly 30,000 libraries in more than 100 countries through WorldCat.
OCO-2
OCO-2 (Orbiting Carbon Observatory-2) is a NASA satellite launched July 2014 that measures atmospheric carbon dioxide by recording absorption of reflected sunlight in near-infrared bands.
OCO-3
OCO-3 (Orbiting Carbon Observatory-3) is a NASA spectrometer mounted on the International Space Station that measures atmospheric carbon dioxide and plant fluorescence, launched in 2019.
Oconee Nuclear Station
Oconee Nuclear Station is a three-unit nuclear power plant on Lake Keowee near Seneca, South Carolina, operated by Duke Energy; its units began operation in 1973 and 1974.
OCP Global Summit
The OCP Global Summit is the annual conference of the Open Compute Project Foundation, held in San Jose, California, where hyperscale operators standardize open data center hardware designs.
OCP Group
OCP Group, originally the Office Chérifien des Phosphates, is a Moroccan state-owned mining and chemicals company founded in 1920 that holds a legal monopoly on Morocco's phosphate.
OCR-free document understanding
OCR-free document understanding reads document images directly with a vision encoder and text decoder, without an OCR step, introduced by Clova AI's Donut in 2021.
Octagon house
An octagon house is an eight-sided dwelling briefly popular in the United States and Canada in the 1850s, promoted by phrenologist Orson Squire Fowler's 1848 book.
Octane rating
The octane rating, or octane number, is a number measuring a spark-ignition fuel's resistance to knocking, defined on a scale where iso-octane is 100 and n-heptane is 0.
Octave Levenspiel
Octave Levenspiel is a chemical engineer and Oregon State University professor known as the founder of chemical reaction engineering and author of its standard 1962 textbook.
Octávio Frias de Oliveira Bridge
The Octávio Frias de Oliveira Bridge, known locally as the Ponte Estaiada, is a cable-stayed bridge over the Pinheiros River in São Paulo, Brazil, opened in 2008.
Octli Oil and Gas Field
The Octli Oil and Gas Field is an offshore oil and gas field in shallow water off Mexico, discovered in 2017 and operated by Petróleos Mexicanos.
Octo (robot foundation model)
Octo is an open-source generalist robot policy that maps camera images and task specifications to robot actions, pretrained on 800,000 demonstrations and released in May 2024.
October Oil and Gas Field
The October Oil and Gas Field is an offshore oil field in the north-central Gulf of Suez, Egypt, discovered in 1977 and once Egypt's largest oil producer.
Octol
Octol is a melt-cast military high explosive of HMX and TNT, developed in 1952 and used where more power than Composition B is needed, such as shaped-charge warheads.
OctoMap
OctoMap is an open-source C++ framework for probabilistic 3D occupancy mapping based on octrees, developed at the University of Freiburg and used for collision checking and path planning on robots.
Octopus (yacht)
Octopus is a 126-meter explorer motor yacht built by Lürssen in 2003 for Microsoft co-founder Paul Allen, later used in the discovery of the battleship Musashi.
Octopus-inspired adhesive patch
An octopus-inspired adhesive patch is a synthetic patch patterned with miniature suction cups copied from octopus suckers, allowing reversible attachment to dry, wet, and underwater surfaces without chemical adhesives.
Octree
An octree is a tree data structure in which each internal node has exactly eight children, recursively subdividing 3-D space into eight subcubes, or octants.
Oculus Rift CV1
The Oculus Rift CV1 (Consumer Version 1) is a PC-tethered virtual reality headset developed by Oculus VR, then a Facebook subsidiary, first shipped in 2016 at $599.
Oda Oil and Gas Field
Oda is an oil field in the southern Norwegian North Sea, discovered in 2011 and producing since 2019 through a subsea tieback to the Ula field.
Ōdachi (大太刀)
Ōdachi (大太刀), also called nodachi, is a traditionally made Japanese sword with a blade of about 90 cm or longer, far exceeding the standard katana.
Odakyu Electric Railway
Odakyu Electric Railway (小田急電鉄) is a Japanese private railway company operating commuter and limited-express services from Shinjuku in Tokyo to Kanagawa Prefecture and the tourist destinations of Hakone and Enoshima.
OData
OData (Open Data Protocol) is an OASIS and ISO-standard application-level protocol for RESTful APIs, in which services describe their data model so generic clients can query and edit the data over HTTP.
Odd Magnus Faltinsen
Odd Magnus Faltinsen, born 1944 in Stavanger, Norway, is a Norwegian marine hydrodynamicist and Professor Emeritus at NTNU, known for wave loads, slamming, and sloshing theories.