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Technology and the built world

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Drunk driving law by country

Drunk driving law by country, also called drunk driving laws throughout the world, covers national legal limits on blood alcohol concentration for drivers and their penalties.

Drunk driving recidivism

Drunk driving recidivism is the repetition of an impaired-driving offense (DWI, DUI, or OWI) by a person already arrested or convicted for one, typically measured by rearrest.

Drupal

Drupal is a free, open-source content management system and framework written in PHP, begun by Dries Buytaert in Belgium and released in 2001, now powering more than one million websites.

Druzhba Oil Pipeline

The Druzhba oil pipeline (Дружба, "Friendship") is one of the world's largest crude oil pipelines, carrying Russian oil from the Volga-Ural region through Belarus and Ukraine to Central Europe since 1963.

Druzhnoye Oil and Gas Field

Druzhnoye (Дружное) field is an oil field in the Surgut district of West Siberia, Russia, discovered in 1983 and developed since 1985 by LUKOIL-Western Siberia.

Dry anaerobic digestion

Dry anaerobic digestion, or high-solids anaerobic digestion, breaks down organic waste such as food waste and manure without oxygen at 15–40% solids, producing methane-rich biogas.

Dry cask storage

Dry cask storage stores spent nuclear fuel in sealed steel cylinders surrounded by concrete for radiation shielding, first licensed by the NRC at Virginia's Surry plant in 1986.

Dry cell

A dry cell is an electrochemical battery with a paste electrolyte instead of free liquid, making it spill-proof; alkaline and carbon-zinc cells power flashlights and remotes.

Dry cleaning

Dry cleaning, despite its name, washes garments in liquid organic solvents like perchloroethylene rather than water, a trade dating to turpentine spot cleaning in 1690.

Dry coating (battery manufacturing)

Dry coating, also called dry battery electrode (DBE) processing, is a solvent-free method of making lithium-ion battery electrodes by forming dry powder into a film applied directly to the foil.

Dry Combat Submersible

The Dry Combat Submersible (DCS) is a Lockheed Martin-built mini-submarine that carries US special operations forces in dry, one-atmosphere comfort, reaching initial operational capability in 2023.

Dry dock

A dry dock, also called a graving dock, is a basin from which water is pumped out so a ship's hull below the waterline can be repaired.

Dry electrode processing

Dry electrode processing is a solvent-free method of making lithium-ion battery electrodes from dry powders instead of slurry coating, eliminating toxic solvents like NMP and cutting drying costs.

Dry etching

Dry etching removes material from a substrate using plasma-generated reactive radicals and energetic ions instead of liquid chemicals, transferring lithographic mask patterns into films such as silicon and silicon dioxide.

Dry machining

Dry machining is metal cutting without cutting fluid, relying on coated tools, tool geometry, and adjusted cutting parameters to manage heat, cutting fluid costs, and health hazards.

Dry milling (ethanol production)

Dry milling, also called the dry-grind process, is the dominant method of producing fuel ethanol from corn in the United States, accounting for about 90% of U.S. ethanol output.

Dry pressing

Dry pressing, also called conventional powder pressing, is a ceramic forming process in which a nearly dry powder is compacted in a rigid die and then sintered.

Dry reforming of methane

Dry reforming of methane (DRM) is a catalytic process converting methane and carbon dioxide into synthesis gas, a hydrogen and carbon monoxide mixture usable for fuels.

Dry stack tailings

Dry stack tailings, also called filtered tailings, are mine tailings dewatered to a moist, transportable cake and compacted into stable, unsaturated stacks that need no retaining dam or tailings pond.

Dry sump

A dry sump, or dry sump lubrication, is an engine lubrication system storing oil in an external tank, with scavenge pumps keeping the crankcase dry; widely used in aircraft.

Dry van trailer

A dry van trailer is an enclosed, unrefrigerated semi-trailer that hauls palletized freight needing weather protection but no temperature control, the most common type in North American trucking.

Dry well

A dry well, also called a soak well or soak pit, is an underground structure that disposes of stormwater runoff by infiltrating it into the soil.

Dry-type transformer

A dry-type transformer is a power or distribution transformer insulated and cooled by air and solid materials like epoxy resin instead of oil, favored indoors for fire safety.

Dryburgh Abbey

Dryburgh Abbey is the ruin of a Premonstratensian monastery founded in 1150 on the River Tweed in Roxburghshire, Scotland, and the burial place of Sir Walter Scott.

Drywall

Drywall, also known as Sheetrock or plasterboard, is a fire-resistant panel of gypsum faced with paper, used for interior walls and ceilings; modern wallboard was invented in 1916 by United States Gypsum.

DS (satellite bus)

The DS (Dnepropetrovsk Sputnik) was a family of small standardized Soviet satellite buses developed from 1961 by OKB-586 in Dnepropetrovsk for scientific and military missions flown largely under the Kosmos and Interkosmos programs.

DS Automobiles

DS Automobiles is a French premium car marque founded in Paris in 2014, positioned above Citroën within PSA and now Stellantis, selling the DS 3, N°4, N°7, and N°8 in 40 countries.

DS No. 4

The DS No. 4, also styled DS N°4, is a compact premium hatchback from DS Automobiles, Stellantis's premium marque, sold as the DS 4 until the 2025 facelift.

DS No. 8

The DS No. 8 (DS N°8) is a battery-electric SUV coupé and flagship of DS Automobiles, unveiled in December 2024 with a WLTP range of up to 466 miles.

DS-1000

DS-1000 is a code generation benchmark of 1,000 data-science problems spanning seven Python libraries, built from real Stack Overflow questions and scored by executing generated code against test cases.