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Dynamic Structures (company)
Dynamic Structures is a Canadian engineering and heavy-fabrication company in Port Coquitlam, British Columbia, founded in 1926, that builds theme park ride systems for Disney and Universal and telescope enclosures.
Dynamic Systems Development Method
The Dynamic Systems Development Method (DSDM) is an Agile project delivery framework created in 1994 by a consortium seeking to add quality and control to Rapid Application Development, now maintained by the Agile Business Consortium.
Dynamic testing
Dynamic testing is software testing in which a test item is evaluated by executing it with selected inputs and observing its runtime behavior, as defined by ISO/IEC/IEEE 29119.
Dynamic time warping
Dynamic time warping, or DTW, is a similarity measure for time series that finds the optimal nonlinear alignment between two sequences, developed by Sakoe and Chiba for speech recognition.
Dynamic topology optimization
Dynamic topology optimization is a structural design method that distributes material within a design domain to maximize stiffness or dynamic performance under vibration, harmonic, or transient loads.
Dynamic typing
Dynamic typing is a property of programming languages where type checks happen at run time rather than before the program runs, as in Python and JavaScript.
Dynamic voltage and frequency scaling
Dynamic voltage and frequency scaling (DVFS) is a power management technique that adjusts a processor's supply voltage and clock frequency at runtime to match the current workload and save energy.
Dynamic voltage restorer
A dynamic voltage restorer (DVR) is a series-connected custom power device that injects corrective voltage to protect sensitive loads from sags, swells, and other disturbances, but not outages.
Dynamic wake meandering
Dynamic wake meandering (DWM) is a mid-fidelity engineering wake model developed at the Technical University of Denmark that treats a turbine wake deficit as a passive tracer carried by large-scale turbulence.
Dynamic web page
A dynamic web page generates its content at request time rather than serving a fixed file, typically by combining database data with HTML templates on the server.
Dynamic window approach
The dynamic window approach (DWA) is a local obstacle-avoidance method for mobile robots, introduced by Fox, Burgard, and Thrun in 1997 and used as the default local planner in the ROS navigation stack.
Dynamic Yield
Dynamic Yield is a Tel Aviv-founded personalization software company whose Experience OS platform tailors digital content in real time, owned by Mastercard since 2022 after McDonald's bought it in 2019.
Dynamic-link library
A dynamic-link library (DLL), also called a dynamically linked library, is a shared library in Microsoft Windows containing functions and data used by applications and other DLLs.
DynaMIT
DynaMIT (Dynamic Network Assignment for the Management of Information to Travelers) is a simulation-based traffic estimation and prediction system developed at MIT, whose prototype appeared in 1998.
Dynamite
Dynamite is a class of high explosives in which nitroglycerin is absorbed into an inert filler to form a stable, moldable solid, patented by Alfred Nobel in 1867.
Dynamo
A dynamo, or dynamo-electric machine, is a direct-current generator converting mechanical energy to DC by electromagnetic induction. Descended from Faraday's 1831 disk, it powered early lighting before alternators displaced it.
Dynamometer
A dynamometer is a device that applies a controlled load to an engine or motor while measuring its torque and speed to determine power output.
Dynamometer car
A dynamometer car is a rolling laboratory railroad car coupled directly behind a locomotive to measure and record drawbar pull, speed, and train performance on real track.
Dynapac
Dynapac is a Swedish manufacturer of road construction equipment, principally soil and asphalt rollers, pavers, and planers, headquartered in Karlskrona and owned since 2017 by France's Fayat Group.
DYNASMART
DYNASMART is a simulation-based dynamic traffic assignment model developed at the University of Texas at Austin that combines network traffic simulation with routing of individual vehicles.
Dynatrace
Dynatrace is an American-listed software company selling an AI-powered observability platform for monitoring applications, infrastructure, logs, and security, founded in 2005 in Linz, Austria, and listed on the NYSE since 2019.
Dynegy
Dynegy Inc. was an American independent power producer and retail electricity supplier headquartered in Houston, Texas. It merged into Vistra Energy in 2018, with the Dynegy name surviving as a retail brand.
Dynegy Moss Landing power plant
Natural gas-fired generating and battery storage complex at Moss Landing, California, combining a 1,060 MW combined-cycle plant with one of the world's largest battery storage facilities.
Dyno Nobel
Dyno Nobel is an Australian-headquartered commercial explosives and blasting company tracing its origins to Alfred Nobel, and the largest explosives distributor in North America by earnings.
Dyson (company)
Dyson, also known as Dyson Limited, is a British technology company founded by Sir James Dyson, best known for bagless cyclonic vacuum cleaners and now selling hair care and air treatment products.
Dyson sphere
A Dyson sphere, also called a Dyson shell or Stapledon sphere, is a hypothetical megastructure around a star collecting its energy, proposed by Freeman Dyson in 1960.
Dzong architecture
Dzong architecture (Dzongkha: རྫོང་) is the Bhutanese tradition of building massive fortified complexes housing both a monastic community and district government offices, a form systematized in the 17th century by Zhabdrung Ngawang Namgyal.
E (New York City Subway service)
The E is a 24-hour New York City Subway service between Jamaica Center, Queens, and World Trade Center, Manhattan, express in Queens and local on Eighth Avenue.
E Ink
E Ink (electronic ink) is a reflective, bi-stable display technology created at the MIT Media Lab in 1997, used in most e-readers and electronic shelf labels.
E ticket
E ticket (electronic ticket, e-ticket): a ticket held as an electronic record instead of paper. First issued by United Airlines in 1994; standardized by IATA, validated via QR codes, barcodes, or NFC.