All articles starting with D
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DF-31
The DF-31 (Dong Feng-31, 东风-31; NATO reporting name CSS-10) is a Chinese road-mobile, three-stage, solid-fueled intercontinental ballistic missile with a range of 7,000 to over 11,000 km, first deployed in 2006.
DF-41
The DF-41, also called Dongfeng-41, is a Chinese road-mobile intercontinental ballistic missile capable of carrying MIRVs, with a range of 12,000 to 15,000 km, China's longest.
DF-5
The DF-5 (Dongfeng-5, "East Wind 5"; US designation CSS-4) is a Chinese two-stage, liquid-propellant intercontinental ballistic missile deployed in 1980 that became the basis for China's Long March 2 launch vehicles.
DF-61 (东风-61)
The DF-61 (东风-61, Dongfeng-61) is a Chinese road-mobile intercontinental ballistic missile first shown publicly at a Beijing military parade in September 2025, seen as a successor to the DF-41.
DFB-Pokal
DFB-Pokal, the German football association cup, a 64-team knockout competition; men's final at Berlin Olympiastadion since 1985 (extended to 2030); first held 1935 as Tschammer-Pokal; Bayern beat Stuttgart 3:0 in the 2026 final.
DFG trial
DFG trial (NCT03582540), Early Versus Delayed Double-guidewire Technique in Difficult Biliary Cannulation: French multicenter randomized ERCP trial by Société Française d'Endoscopie Digestive; early double-guidewire use achieved 84% vs 50% cannulation within 10 minutes.
DFH-3
DFH-3 (Dong Fang Hong 3, 东方红三号) is a Chinese three-axis stabilized geostationary communications satellite bus developed in the 1990s by the China Academy of Space Technology, whose platform later baseed 41 satellites.
DFH-3B
DFH-3B is a Chinese geostationary satellite bus from the China Academy of Space Technology, the platform for BeiDou-3 GEO and IGSO satellites and LaoSat 1.
DFH-4
DFH-4 (Dong Fang Hong 4) is a large geostationary communications satellite bus developed by the China Academy of Space Technology, first launched in 2006 and sold to international customers.
DFI (motherboard manufacturer)
DFI (友通) is a Taiwanese manufacturer of embedded motherboards, system-on-modules, and industrial computers, founded in 1981 as Diamond Flower International, headquartered in Taipei and listed on the Taiwan Stock Exchange as TWSE:2397.
Dfinity
Dfinity, formally the DFINITY Foundation, is a Swiss not-for-profit organization founded by Dominic Williams in Zug in 2016 that builds the Internet Computer blockchain network.
Dfj Growth Ai Investors
DFJ Growth AI Investors is a series of venture capital funds managed by DFJ Growth, a San Mateo, California firm that spun out of Draper Fisher Jurvetson in 2005.
Dfj Growth Spx Investors
DFJ Growth SPX Investors is a family of four Delaware venture capital fund vehicles, with 2018 to 2022 vintages, raised by DFJ Growth, a growth-stage firm in Menlo Park, California.
Dfj Venture
DFJ Venture refers to two early-stage venture capital funds, Venture XI and Venture XII, raised by Draper Fisher Jurvetson from its Menlo Park, California base in 2014 and 2016.
DFS Deutsche Flugsicherung
DFS Deutsche Flugsicherung (DFS) is the German air navigation service provider, a State-owned company that controls all IFR flights in German airspace from four control centers.
DFT matrix
The DFT matrix is a complex square matrix whose entries are powers of an N-th root of unity, so multiplying it by a vector computes the discrete Fourier transform.
DFT-based channel estimation
DFT-based channel estimation is a low-complexity method for estimating the channel frequency response in OFDM receivers, converting least-squares pilot estimates to the time domain to remove noise.
DFT-based microkinetic modeling
DFT-based microkinetic modeling (DFT-MKM) is a computational catalysis method that builds kinetic models from DFT-calculated elementary steps, predicting rates and selectivities for systems like CO2 hydrogenation, ammonia synthesis, and electrocatalysis.
DFT-D3
DFT-D3 is an empirical London dispersion correction for density functional theory and related quantum chemical methods, developed by Stefan Grimme and coworkers and published in the Journal of Chemical Physics in 2010.
DFT-spread OFDM precoding
DFT-spread OFDM precoding, also called DFT-s-OFDM, is a linear precoding technique that transforms data symbols with a DFT before OFDM mapping, lowering the peak-to-average power ratio.
DFTB3
DFTB3 is a semiempirical quantum-chemical method, the third-order extension of the self-consistent-charge density-functional tight-binding method (SCC-DFTB), improving hydrogen bonds and proton affinities and widely used in QM/MM biomolecular simulations.
Dfw Capital Partners
DFW Capital Partners is a lower-middle-market private equity firm founded in 1994 and headquartered in Teaneck, New Jersey, making control investments in healthcare and specialty pharmaceuticals companies.
DFZM
DFZM, the moniker of Dylan Zambrano, is a Colombian reggaeton and urbano singer from Buenaventura who went viral rapping from his house before appearing on the 2024 hit "+57".
DG Tau
DG Tau (DG Tauri) is a classical T Tauri star, a young low-mass star still accreting from its disk, in the Taurus Molecular Cloud about 120.8 parsecs away.
DG-S Bullfrog Opportunity II, LLC
DG-S Bullfrog Opportunity II, LLC is a Delaware pooled venture capital fund managed from Palo Alto, California, and signed by Meyer Malka, which raised $140,765,625 from 17 investors in 2021.
DGAT1
DGAT1 (diacylglycerol O-acyltransferase 1, gene at 8q24.3) is a membrane-bound MBOAT enzyme catalyzing the final step of triglyceride synthesis; biallelic loss causes congenital diarrhea, and its inhibition causes GI side effects.
DGC Records
DGC Records (David Geffen Company) was an American record label imprint of Geffen Records founded in 1990, known for Nirvana's Nevermind, Sonic Youth, Beck, and Weezer; wound down in 1999, relaunched 2007, merged into Geffen Records in 2021.
DGLAP evolution
DGLAP evolution, or the Altarelli-Parisi equations, is the set of perturbative QCD equations describing how parton distribution functions change with the energy scale of a scattering process.
DGNB
DGNB, or Deutsche Gesellschaft für Nachhaltiges Bauen, is the German Sustainable Building Council, founded in 2007 to certify buildings, districts, interiors, and construction sites for sustainability.
DGTL Festival
DGTL Festival, also billed as DGTL Amsterdam, is an electronic music festival founded in 2013 at the NDSM shipyard in Amsterdam, held each Easter weekend and known for its circular-sustainability program.