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Disulfide exchange self-healing elastomers
Disulfide exchange self-healing elastomers are crosslinked rubbery polymers in which reversible disulfide bonds rebuild the network after damage, first demonstrated by Canadell, Goossens, and Klumperman in 2011.
Disused sealed radioactive source
A disused sealed radioactive source is a sealed radioactive source no longer used and not intended to be used again, often from medicine, industry, or research.
Dito Telecommunity
Dito Telecommunity (DITO), formerly the Mislatel Consortium, is the third major telecommunications provider in the Philippines, launched in 2021 by a consortium led by Dennis Uy with China Telecom.
Dive bomber
A dive bomber is a combat aircraft that drops its bomb in a steep dive for accuracy, used most by the US Navy in World War II.
Dive support vessel
A dive support vessel is a ship with a saturation diving system that places commercial divers at subsea work sites to build and repair offshore structures.
Diverging diamond interchange
A diverging diamond interchange (DDI), or double crossover diamond, is a highway interchange where traffic briefly drives on the left so left turns onto freeway ramps cross no oncoming traffic.
Diversion dam
A diversion dam, also called a diversionary dam, is a low barrier across a river that raises the water level to divert flow into canals or ditches for irrigation.
Diversity collapse in RLHF
Diversity collapse in RLHF is the documented narrowing of a language model's output diversity after preference-based post-training, first quantified by Kirk et al. in a 2023 study published at ICLR 2024.
Diversity reception
Diversity reception is a wireless technique in which a receiver combines two or more independent copies of the same signal to reduce fading and improve reliability.
Divertor Tokamak Test
The Divertor Tokamak Test (DTT) is an experimental fusion facility under construction at the ENEA Frascati Research Centre near Rome, Italy, testing power-exhaust solutions for the ITER and DEMO reactors.
Divide-and-conquer algorithm
The divide-and-conquer method solves a problem by recursively breaking it into smaller subproblems, solving them independently, and combining the solutions; merge sort and quicksort are classic examples.
Diving bell
A diving bell is a rigid chamber lowered underwater carrying a pocket of breathing gas, used to transport divers between the surface and a work site under pressure.
Diving chamber
A diving chamber, also called a compression chamber, is a pressure vessel for human occupancy used for treating injured divers, surface decompression, saturation diving, and hyperbaric oxygen therapy.
Divinity Engine
The Divinity Engine is the game engine and editor toolset Larian Studios ships with its Divinity: Original Sin role-playing games, letting owners build levels and publish mods.
Divriği Great Mosque
The Divriği Great Mosque (Turkish: Divriği Ulu Camii) is a 13th-century mosque in Divriği, central eastern Turkey, built in 1228–1229 by the Mengücekid emir Ahmed Shah.
Divya Desam (திவ்ய தேசம்)
Divya Desam (திவ்ய தேசம்), meaning "divine place," is one of the 108 Vishnu temples glorified in the Naalayira Divya Prabandham, the hymns of twelve Tamil Alvar poet-saints.
Diwan Chaman Lall
Diwan Chaman Lall (1892–1973) was an Indian barrister, poet, and trade unionist who founded the All-India Trade Union Congress in 1920 and served as Indian Ambassador to Turkey.
Dixie Highway
The Dixie Highway was a network of parallel north-south auto trails, conceived by Carl Fisher in 1915, linking the Midwest and Great Lakes with Florida.
DIY Drones
DIY Drones is an online community for amateur unmanned aerial vehicles, founded in May 2007 by Chris Anderson of Wired magazine, and became the birthplace of the open-source autopilot ArduPilot.
Django (web framework)
Django is a free and open-source Python web framework for building database-driven web applications quickly, created at a Kansas newspaper and first released in 2005.
Django REST Framework
Django REST Framework (DRF) is a Python toolkit for building Web APIs on top of Django, providing serializers, authentication, permissions, and pagination, created by Tom Christie in 2011.
Djarum
Djarum is an Indonesian cigarette manufacturer based in Kudus, Central Java, founded by Oei Wie Gwan in 1951 and best known for producing clove-mixed kretek cigarettes.
Djarum Black
Djarum Black is a brand of kretek, the Indonesian clove cigarette, produced by PT Djarum in Kudus, Central Java, first launched in the United States in 1996.
DJI
DJI (大疆创新, Dajiang Innovations), Shenzhen-based private company founded 2006 by Frank Wang, is the world's largest drone maker with over 70% global market share, maker of Phantom, Mavic, Matrice, AGRAS, and Osmo products.
DJI Air
DJI Air, originally Mavic Air, is a series of folding camera drones made by DJI, running from the 2018 Mavic Air to the Air 3S of 2024.
DJI Air 3
The DJI Air 3 is a folding consumer camera drone made by DJI, announced in 2023 as the first Air Series model with a dual camera system.
DJI Air series
The DJI Air series is a line of folding consumer camera drones made by DJI, sitting between the Mini and Mavic series with larger sensors and dual-camera zoom.
DJI Dock
DJI Dock is a family of automated drone-in-a-box base stations made by DJI, first announced in 2022, that houses, launches, and recharges compatible Matrice drones for remote missions.
DJI Flame Wheel F450
The DJI Flame Wheel F450 is a 450 mm quadcopter frame kit from DJI, sold almost-ready-to-fly with motors, ESCs, and propellers; production stopped in May 2017.
DJI FlyCart
DJI FlyCart 30 is a heavy-lift cargo drone by DJI, launched globally in 2024, carrying 30 kg payloads and first flown for delivery on Mount Everest.