Technology and the built world

Dining room

A dining room, also called a dining area, is a room in a home or hotel where meals are eaten, especially the major or more formal meals.

DINO (vision model family)

DINO is a family of self-supervised vision transformer models developed by Meta AI, first published in 2021 and extended as DINOv2 in 2023 and DINOv3 in 2025.

Dino 206 GT and 246 GT

The Dino 206 GT and 246 GT are two-seat mid-engined V6 sports cars built by Ferrari and sold under the Dino marque from 1968 to 1974.

Dino Di Carlo is an American bioengineer who chairs the Bioengineering Department at UCLA, known for pioneering inertial microfluidics and lab-on-a-particle technologies such as nanovials, and for co-founding several biotechnology startups.

Dinorwig Power Station

Dinorwig Power Station, also known as Electric Mountain, is a pumped-storage hydroelectric plant hidden inside Elidir Fawr mountain near Llanberis, Wales, opened in 1984 and capable of reaching full power, 1,800 MW, in under a minute.

Diocletian's Palace

Diocletian's Palace is a fortified Roman imperial residence in Split, Croatia, built around 300 as the retirement home of the emperor Diocletian; its streets now form Split's historic center.

Diode

A diode, also called a semiconductor diode, is a two-terminal electronic component that conducts current from anode to cathode and blocks reverse flow; types include rectifier, Zener, Schottky, and LED.

Diode bridge

A diode bridge, also called a Graetz bridge or bridge rectifier, is a circuit of four diodes that provides full-wave rectification in AC-to-DC power conversion.

Diode modeling

Diode modeling is the circuit-analysis practice of representing a diode's current–voltage behavior, charge storage, and breakdown with a compact set of equations, notably the Shockley equation, that SPICE-type simulators solve.

Diode modelling

Diode modeling is the construction of mathematical models representing a semiconductor diode in circuit simulators like SPICE, combining the Shockley equation with resistance, capacitance, and temperature terms.

Dion-Jacobson phase

The Dion-Jacobson phase is a family of layered perovskite compounds, with formulas like A′An−1BnO3n+1, where single interlayer cations bond both adjacent inorganic slabs, unlike the Ruddlesden-Popper phase.

Sep 20, 2026

Dionisios G. Vlachos

Dionisios G. Vlachos is a chemical and biomolecular engineer at the University of Delaware, a founder of multiscale modeling in catalysis and plastics upcycling research.

Dionysios D. Dionysiou

Dionysios D. Dionysiou (Greek: Διονύσιος Δ. Διονυσίου; 1966–2023) was a Cypriot-born environmental engineer and University of Cincinnati professor known for pioneering sulfate-radical advanced oxidation processes for water treatment.

Dip coating

Dip coating is a wet-chemical deposition method that forms thin films by immersing a substrate in a coating solution and withdrawing it at a controlled rate.

DIP switch

A DIP switch is a small bank of manual switches on a circuit board, set by hand to configure hardware. Developed in the early 1970s.

Dipan Kundu

Dipan Kundu is an Associate Professor of chemical engineering at UNSW Sydney known for aqueous rechargeable zinc batteries, including a high-capacity design published in Nature Energy in 2016.

Dipka Coal Mine

Dipka Coal Mine, also known as the Dipka Opencast Project, is a large opencast coal mine in Korba district, Chhattisgarh, India, operated by South Eastern Coalfields Limited.

Diplexer

A diplexer is a filter device that lets two signals at different frequency bands share one antenna and feeder, combining them for transmission or splitting them for reception.

Dipole antenna

A dipole antenna, also known as a Hertz antenna, is a wire antenna of two conductive elements fed at the center, first built by Heinrich Hertz in 1886.

Diran Apelian

Diran Apelian is an American materials engineer, Distinguished Professor at UC Irvine, known for solidification processing, powder metallurgy, and the aluminum alloys in the Audi A8.

Dirección de Vialidad

Dirección de Vialidad (Directorate of Roadways) is the road agency of Chile's Ministry of Public Works, created in 1953 to plan, build, and maintain roads outside the concession system.

Dirección General de Tráfico

The Dirección General de Tráfico (DGT) is Spain's traffic agency under the Ministry of the Interior, created in 1959, issuing driving licenses, vehicle registrations, and sanctions.

Direct ammonia fuel cell

A direct ammonia fuel cell (DAFC) is a fuel cell that feeds ammonia directly as fuel, converting its chemical energy to electricity without upstream hydrogen production.

Direct Anonymous Attestation

Direct Anonymous Attestation (DAA) is a cryptographic protocol letting a device such as a Trusted Platform Module authenticate remotely without revealing its identity, proposed in 2004.

Direct assessment (pipeline integrity)

Direct assessment (DA) is a pipeline integrity method that combines operating history, indirect survey data, and targeted excavation to examine exposed pipe directly for corrosion defects.

Direct bonding

Direct bonding is a wafer-joining method in which two mirror-polished surfaces, typically silicon or silicon dioxide, adhere spontaneously at room temperature without any adhesive or intermediate material.

Oct 22, 2026

Direct bonding of 2D materials

Direct bonding of 2D materials joins atomically thin crystals like graphene and MoS₂ to wafers or each other without adhesives, enabling integration with silicon circuits.

Oct 22, 2026

Direct cathode upcycling

Direct cathode upcycling is a battery-recycling approach that repairs and upgrades a spent lithium-ion cathode's chemistry while keeping its crystal structure, converting low-nickel into nickel-rich material.

Direct chill casting

Direct chill casting is a semi-continuous casting process in which molten metal is poured through a bottomless water-cooled mold and withdrawn downward as it solidifies.