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Risavika LNG Terminal
Risavika LNG Terminal, also known as the Stavanger LNG Terminal, is an operating small-scale LNG liquefaction and export terminal at the Port of Risavika near Stavanger, Norway.
RISC-V
RISC-V, an open standard instruction set architecture based on RISC principles, was started at UC Berkeley in 2010 and is maintained by RISC-V International as a royalty-free standard.
RISC-V BOOM
RISC-V BOOM, short for Berkeley Out-of-Order Machine, is an open-source, synthesizable out-of-order RISC-V processor core written in Chisel at UC Berkeley, with version 3 known as SonicBOOM.
RISC-V instruction listings
RISC-V instruction listings are tables and machine-readable files enumerating the binary encodings of the RISC-V instruction set, from the ISA manual and the riscv-opcodes repository.
RISC-V International
RISC-V International, founded in 2015 as the RISC-V Foundation and reincorporated in Switzerland in 2020, is a non-profit membership organization governing the open RISC-V instruction set architecture standard.
Rise Technology
Rise Technology was a fabless x86 microprocessor startup founded in Santa Clara, California, in 1993. Its only product, the mP6 processor for low-cost PCs, was sold briefly before SiS acquired its CPU technology in 1999.
Rise time
Rise time is the time a signal takes to transition from 10% to 90% of its final amplitude, the standard time-domain measure of edge speed in digital electronics.
Rise Tower
Rise Tower names several buildings: I Rise Tower, a 158 m Dubai office tower completed 2011; a proposed 2,008 m megatall in Riyadh's North Pole district; and Torre Rise, a 484 m skyscraper under construction in Monterrey, set to be Latin America's tallest.
RISE with SAP
RISE with SAP is a subscription offering launched in January 2021 that bundles software, infrastructure, and services for moving customers from on-premises SAP ERP to cloud-based S/4HANA.
Riser (stairs)
A riser is the vertical face between one stair tread and the tread above; its height is regulated for safety, with open risers prohibited under the ADA.
RisingWave
RisingWave is an open-source distributed SQL streaming database written in Rust by RisingWave Labs (formerly Singularity Data). PostgreSQL wire-compatible, Apache 2.0, Hummock S3 state store, incrementally maintained materialized views, exactly-once barrier checkpointing, 50+ connectors, Iceberg and vector search support.
Risk management
Risk management, also called risk analysis, is the coordinated set of activities by which an organization identifies, analyzes, evaluates, treats, and monitors risk, guided by standards such as ISO 31000.
Risk-based inspection
Risk-based inspection (RBI) is a maintenance planning method that prioritizes equipment inspection by the risk of failure, combining failure likelihood with consequence, mainly in the hydrocarbon and chemical process industries.
Risk-sensitive reinforcement learning
Risk-sensitive reinforcement learning is a family of reinforcement learning methods that optimize objectives over the return's distribution, such as variance or conditional value-at-risk, rather than the expected return.
Risto Miikkulainen
Risto Miikkulainen is a computer scientist, Professor of Computer Science at the University of Texas at Austin and VP of AI Research at Cognizant AI Lab, best known as co-inventor of the NEAT neuroevolution method.
Ritchie Valens
Ritchie Valens, born Richard Steven Valenzuela, was an American singer from Pacoima, California, and the first Mexican American rock and roll star, known for "La Bamba."
Ritchie Vink
Ritchie Vink is a Dutch engineer who created the Polars DataFrame library in Rust (first commit 23 June 2020) and co-founded Polars BV in Amsterdam with Chiel Peters in 2023, raising a $4M seed and a €18M Accel-led Series A.
Ritu Raman
Ritu Raman is an American mechanical engineer at MIT who works on biohybrid robotics and 4D tissue engineering, building machines powered by living muscle; she received the Presidential Early Career Award in 2025.
RIVA (pharmacy robot)
RIVA (Robotic IV Automation) is a fully automated pharmacy robot that compounds sterile intravenous medications in hospital pharmacies, developed in Winnipeg, Manitoba, and sold by ARxIUM.
River Bend (data center)
River Bend is an AI data center campus in St. Francisville, Louisiana, developed by Hut 8 with up to $10 billion in Phase I investment and Fluidstack as anchor tenant.
River Bend nuclear power plant
River Bend Station is a nuclear power plant near St. Francisville, Louisiana, operated by Entergy with a single boiling water reactor cooled by the Mississippi River.
River monitor
A river monitor, also called a riverine monitor, is a shallow-draft, heavily armed and armored warship built for rivers and inland waterways rather than the sea, a type named after the Civil War ironclad USS Monitor.
River View Coal Mine
River View Coal Mine is an underground bituminous coal mine in Union County, Kentucky, owned by Alliance Coal and producing about 9 million tons in 2024.
River-class destroyer
The River-class destroyer is a class of 15 warships being built for the Royal Canadian Navy by Irving Shipbuilding in Halifax, replacing its destroyers and frigates.
River-class patrol vessel
The River class is a class of offshore patrol vessels of the British Royal Navy, entering service in 2003–04 and used for fishery protection, border patrol, and disaster relief.
Riverboat
A riverboat is a vessel designed to carry passengers, freight, or both on rivers and inland waterways, most often evoking the shallow-draft paddlewheel steamboats of the nineteenth century.
Rivers and Harbors Act
The Rivers and Harbors Act names a series of United States federal statutes, beginning in 1824, that fund navigable water improvements, with the 1899 act still governing obstructions and refuse in navigable waters.
Riverside Church (New York City)
The Riverside Church in the City of New York is an interdenominational church in Morningside Heights, Manhattan, built 1927–1930 with funding from John D. Rockefeller, Jr.
Rivet
A rivet is a permanent mechanical fastener with a shank and head, installed by deforming the plain end into a second head, common in aircraft construction.
Riveting
Riveting is a permanent mechanical fastening method that joins parts by deforming a rivet, used in aircraft skins, aluminum car bodies, and historic iron and steel bridges.