All articles starting with R

RTFM (AI model)

RTFM (Real-Time Frame Model) is a real-time generative world model by World Labs, released as a research preview in October 2025, that generates explorable 3D worlds frame-by-frame.

RTG-2 (Rainbow Trout Gonad-2), also written RTG2, is the first permanent fish cell line, established from rainbow trout gonad by Wolf and Quimby in 1962; a fibroblast-like, spontaneously immortalized line (ATCC CCL-55) used in fish virology, ecotoxicology, and genotoxicity testing.

Oct 22, 2026

RTH zeolite

RTH is a zeolite framework type code in the International Zeolite Association database, describing a two-dimensional small-pore framework whose reference material is RUB-13 and whose 8-ring windows make it relevant to methanol-to-olefins catalysis.

RTHK (香港电台)

RTHK (香港電台), Radio Television Hong Kong, Hong Kong's sole public service broadcaster and oldest station (founded 1928), a government department running 8 radio and 5 TV channels, three relaying mainland output, funded via Head 160 appropriations.

RTI Connext DDS

RTI Connext DDS is a commercial implementation of the Data Distribution Service (DDS) standard from Real-Time Innovations of Sunnyvale, California, used in robotics, aerospace, and automotive systems.

RTI International

RTI International is an independent nonprofit research institute in Research Triangle Park, North Carolina. Founded in 1958, it is best known for discovering the anticancer compounds Taxol and camptothecin.

RTINGS

RTINGS, also known as RTINGS.com, is a Canadian website that independently laboratory-tests consumer electronics and other products, buying every unit it reviews, founded in 2011.

RTL (German TV channel)

RTL (RTL Television), formerly RTL plus, is a German free-to-air commercial TV channel in Cologne, flagship of Mediengruppe RTL Deutschland under RTL Group and Bertelsmann; launched 1984 from Luxembourg, market leader among 14-49 viewers since 1992.

RTL Group

RTL Group, also known as Radio Télévision Luxembourg, is a Luxembourg-based European media company in television, streaming, radio, and content production, majority-owned by Bertelsmann since 2001.

RTLinux

RTLinux is a hard real-time operating system that runs the standard Linux kernel as a low-priority thread beneath a small real-time core, created at New Mexico Tech in 1995.

rTMS trial (NCT07049211)

NCT07049211, Individualized rTMS Synchronized Task Training, is a randomized sham-controlled double-blind Ruijin Hospital trial of 51 stroke patients testing individualized online rTMS plus motor training for upper limb recovery.

RTN4

RTN4 (reticulon 4, Nogo), human gene at 2p16.1, encodes ER tubule-shaping proteins; its Nogo-A isoform inhibits CNS axon regeneration via the Nogo-66 loop and NgR receptor.

RTP (tokamak)

RTP (Rijnhuizen Tokamak Project) was a medium-sized tokamak at the FOM Institute in Nieuwegein, the Netherlands, studying electron heat transport until its closure in September 1998.

RTP Control Protocol

The RTP Control Protocol (RTCP), the companion control protocol to the Real-time Transport Protocol, carries periodic control packets that monitor quality of data delivery in RTP sessions.

RTR Vehicles

RTR Vehicles, short for Ready to Rock, is an American performance company founded by driver Vaughn Gittin Jr. in 2009, known for its Mustang RTR Spec series and Ford collaborations.

RTV silicone

RTV silicone (room-temperature vulcanizing silicone) is a silicone rubber that crosslinks into an elastomer at room temperature, either as a one-part material curing on contact with atmospheric moisture.

RTV-G-4 Bumper

The RTV-G-4 Bumper was the first large two-stage liquid-fueled rocket ever flown, an American project combining a captured German V-2 with a modified WAC Corporal upper stage.

RTX Corporation

RTX Corporation, formerly Raytheon Technologies, is an American aerospace and defense manufacturer headquartered in Arlington, Virginia, formed by the 2020 merger of United Technologies and Raytheon Company.