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In mass spectrometry, direct analysis in real time (DART) is an ion source that produces electronically or vibronically excited-state species from gases such as helium, argon, or nitrogen that ionize atmospheric molecules or dopant molecules. The ions generated from atmospheric or dopant molecules undergo ion-molecule reactions with the sample ...
The Double Asteroid Redirection Test (DART) was a NASA space mission aimed at testing a method of planetary defense against near-Earth objects (NEOs). [ 4 ] [ 5 ] It was designed to assess how much a spacecraft impact deflects an asteroid through its transfer of momentum when hitting the asteroid head-on. [ 6 ]
2G refers to the second-generation of cellular network technology, which were rolled out globally starting in the early 1990s. The main differentiator to previous mobile telephone systems, retrospectively dubbed 1G , is that the radio signals of 2G networks are digital rather than analog , for communication between mobile devices and base ...
Dart Manufacturing Company was founded in 1937 by William F. Dart as a machine shop, manufacturing key rings, steel tape measures, and dog tags for the Department of Defense. [5] When his son, William A. Dart, came out of the University of Michigan with three degrees ( metallurgy , mathematics , and engineering ), he worked for DuPont briefly ...
Dart was a manufacturer of commercial vehicles in Waterloo, Iowa, that was established around 1910. History. The company began with light commercial vehicles for ...
The UK currently has the world's biggest digital radio network, with about 500 transmitters, two nationwide DAB ensembles and 48 local and regional DAB ensembles, broadcasting over 250 commercial and 34 BBC radio stations; about 100 stations can be received in London. On DAB digital radio most listeners can receive around 30 additional stations.
BBC National DAB is a digital audio broadcasting multiplex in the UK, for a number of radio stations which have UK wide coverage. The multiplex is owned and operated by the BBC and is transmitted from a number of transmitter sites across the country; it only carries BBC radio stations.
Burton made his first appearance at the PDC World Darts Championship after earning one of three spots in the Tour Card Holder qualifier for the 2019 World Championship. [5] In the first round, he was whitewashed by Ryan Searle 3–0 in sets. [6] After losing his tour card, he won two titles on the PDC Challenge Tour at Event Two and Event Eight ...