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  2. Electron-transfer dissociation - Wikipedia

    en.wikipedia.org/wiki/Electron-transfer_dissociation

    Electron-transfer dissociation (ETD) is a method of fragmenting multiply-charged gaseous macromolecules in a mass spectrometer between the stages of tandem mass spectrometry (MS/MS). [1] Similar to electron-capture dissociation , ETD induces fragmentation of large, multiply-charged cations by transferring electrons to them. [ 2 ]

  3. Exoplanet Transit Database - Wikipedia

    en.wikipedia.org/wiki/Exoplanet_Transit_Database

    The ETD gives information about mid-transit time, duration, and depth of transit, among other parameters. [3] Together with the NASA Exoplanet Archive, it is considered one of the main databases that allows astronomers to predict transit events and schedule observation sessions. The database includes transit light curves of exoplanets that are ...

  4. Explosives trace detector - Wikipedia

    en.wikipedia.org/wiki/Explosives_trace_detector

    Explosives trace detectors (ETD) are explosive detection equipment able to detect explosives of small magnitude. The detection is accomplished by sampling non-visible "trace" amounts of particulates. The detection is accomplished by sampling non-visible "trace" amounts of particulates.

  5. Everhart–Thornley detector - Wikipedia

    en.wikipedia.org/wiki/Everhart–Thornley_detector

    Disassembled Everhard-Thornley detector from (Philips XL30), showing (from left) the +300V grid and tube, transparent cylindrical light guide, golden clamping nut, and the internal assembly with scintillator disc (+10 kV) on the top.

  6. End-of-train device - Wikipedia

    en.wikipedia.org/wiki/End-of-train_device

    An ETD on a container train in 2005. The end of train device (ETD), sometimes referred to as an EOT, flashing rear-end device (FRED) or sense and braking unit (SBU) is an electronic device mounted on the end of freight trains in replacement of a caboose.

  7. List of futures exchanges - Wikipedia

    en.wikipedia.org/wiki/List_of_futures_exchanges

    Below is a ranking of major exchange groups that offer exchange-traded derivatives (ETD), according to "Trends in ETD Trading Annual Review – 2023" published by the Futures Industry Association (FIA) on 31 January 2024. [1] [2]

  8. Estimated time of arrival - Wikipedia

    en.wikipedia.org/wiki/Estimated_Time_of_Arrival

    [citation needed] In this respect, the phrase or its abbreviation is often paired with its complement, estimated time of departure (ETD), to indicate the expected start time of a particular journey. This information is often conveyed to a passenger information system as part of the core functionality of intelligent transportation systems .

  9. ETD - Wikipedia

    en.wikipedia.org/wiki/ETD

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