edgepedia

Technology and the built world

61,984 articles

DVD screensaver

The DVD screensaver, also known as the bouncing DVD logo, is an idle animation where the DVD Video logo bounces across the screen, changing color.

DVD-Video

DVD-Video (DVD-V) is the DVD application format for distributing movies on 120 mm optical discs, first played on players sold in Tokyo in November 1996.

DVL-aided inertial navigation

DVL-aided inertial navigation is the dominant navigation method for autonomous underwater vehicles: an inertial navigation system is continuously corrected with velocity measurements from a Doppler velocity log.

Dvorak keyboard layout

The Dvorak keyboard layout, patented by August Dvorak and William Dealey in 1936, is an alternative to QWERTY placing common letters on the home row for faster typing.

DVS study

DVS study: research on the Dynamic Vision Sensor, an event camera reporting pixel-level brightness changes at microsecond resolution. Covers origins (Mahowald and Mead silicon retina), tracking, driving datasets, and the CARLA sim-to-real gap.

DVS128

DVS128 is a 128 × 128 pixel event camera, a dynamic vision sensor whose pixels asynchronously report light changes as digital events, described in 2008 by ETH Zurich researchers.

Dwarf mongoose optimization

Dwarf mongoose optimization (DMO) is a swarm-based metaheuristic, introduced by Agushaka, Ezugwu, and Abualigah in 2022, that mimics dwarf mongoose foraging and sleeping-site behavior to solve optimization problems.

Dwarkadhish Temple

The Dwarkadhish Temple, also called Jagat Mandir, is a Hindu temple dedicated to Krishna at Dwarka in Gujarat, India, one of the Char Dham pilgrimage sites.

DWDM

Dense wavelength division multiplexing (DWDM) is an optical fiber technique combining many closely spaced light channels on one fiber, governed by the ITU-T G.694.1 grid.

Dwight C. Streit

Dwight C. Streit is an American electrical engineer at UCLA known for heterojunction transistors and millimeter-wave circuits, elected to the National Academy of Engineering in 2001.

Dwight F. Metzler

Dwight F. Metzler was an American sanitary engineer and Kansas health administrator who led New York's Clean Waters Program and joined the National Academy of Engineering in 1973.

DWLA-FM

DWLA-FM, known as True FM Manila and branded 105.9 True FM, is a Metro Manila news-and-talk radio station broadcasting on 105.9 MHz since November 2024.

Dworshak Dam

Dworshak Dam is a 717-foot-high concrete gravity dam on the North Fork Clearwater River at Ahsahka, Idaho, the third tallest dam in the United States.

Dworshak National Fish Hatchery

Dworshak National Fish Hatchery is a federal salmon and steelhead hatchery near Ahsahka, Idaho, built by the U.S. Army Corps of Engineers in 1969 to compensate for habitat blocked by Dworshak Dam.

DWS system (dimensioning, weighing, scanning)

A DWS system (dimensioning, weighing, scanning) is an automated logistics station that measures a parcel's dimensions, weighs it, and reads its barcode, feeding billing, sortation, and warehouse systems.

DXVK

DXVK is a Vulkan-based translation layer that lets Direct3D 8, 9, 10, and 11 games run on Linux through Wine, started by Philip Rebohle in 2017.

Dye

A dye is a soluble colorant absorbed into materials like textile fibers, leather, or paper, distinguished from insoluble surface pigments; about 800,000 tonnes are produced yearly.

Dye penetrant inspection

Dye penetrant inspection, also called liquid penetrant testing, is a nondestructive testing method that reveals surface defects in nonporous metals, ceramics, and plastics by drawing dye into the flaw.

Dye-sensitized photoelectrochemical cells

Dye-sensitized photoelectrochemical cells (DSPECs) use a molecular dye on a semiconductor electrode to absorb visible light and drive water splitting, producing hydrogen fuel, and can also convert CO2.

Dye-sensitized solar cell

A dye-sensitized solar cell, also called a Grätzel cell, is a photovoltaic device where dye on titanium dioxide absorbs light; invented at EPFL in 1991, it excels indoors.

Dyeing

Dyeing is the process of applying colorants to textile fibers, yarns, or fabrics so the color survives washing and wear; it accounts for 70 to 80% of textile industry wastewater.

Dyess Air Force Base

Dyess Air Force Base is a United States Air Force installation in Abilene, Texas, opened in 1956 and named for Lt. Col. William Dyess, a Bataan prisoner of war who escaped.

Dymaxion car

The Dymaxion car, also called the Fuller Dymaxion, was a streamlined three-wheeled prototype automobile designed by Buckminster Fuller and Starling Burgess, built in Bridgeport, Connecticut, in 1933 and 1934.

DynaArm

DynaArm is a 6-degree-of-freedom robotic arm developed at ETH Zurich's Robotic Systems Lab and now produced by Duatic, best known on the ALMA ANYmal D quadruped.

Dynabook (brand)

Dynabook Inc., the former PC business of Toshiba, is a Japanese laptop manufacturer wholly owned by Sharp Corporation, renamed after Toshiba launched the first commercial laptop, the T1100, in 1985.

Dynagas LNG Partners LP

Dynagas LNG Partners LP is a Marshall Islands limited partnership, listed on the NYSE as DLNG and spun off from Greek shipowner Georgios Prokopiou, that owns six LNG carriers on long-term charters.

Dynamic Adaptive Streaming over HTTP

Dynamic Adaptive Streaming over HTTP (DASH, or MPEG-DASH) is a standard, first published in 2012, for adaptive video streaming over ordinary HTTP servers and CDNs.

Dynamic application security testing

Dynamic application security testing (DAST) is a black-box security testing method that probes a running application from the outside, without source code access, to find exploitable vulnerabilities.

Dynamic ARP Inspection

Dynamic ARP inspection is a Layer 2 switch security feature that validates ARP packets against trusted IP-to-MAC bindings to prevent ARP spoofing and man-in-the-middle attacks.

Dynamic bandwidth allocation

Dynamic bandwidth allocation (DBA) is a resource management method that redistributes communication bandwidth among users in real time based on demand, notably in passive optical networks.