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  2. Average true range - Wikipedia

    en.wikipedia.org/wiki/Average_true_range

    Average true range (ATR) is a technical analysis volatility indicator originally developed by J. Welles Wilder, Jr. for commodities. [1] [2] The indicator does not provide an indication of price trend, simply the degree of price volatility. [3] The average true range is an N-period smoothed moving average (SMMA) of the true range values. Wilder ...

  3. Answer to reset - Wikipedia

    en.wikipedia.org/wiki/Answer_to_reset

    The ATR in asynchronous transmission is precisely normalized (in order to allow interoperability between cards and readers of different origin), and relatively complex to parse. Some Smart Cards (mostly of the asynchronous variety) send different ATR depending on if the reset is the first since power-up (Cold ATR) or not (Warm ATR).

  4. Attenuated total reflectance - Wikipedia

    en.wikipedia.org/wiki/Attenuated_total_reflectance

    An ATR accessory for IR spectroscopy. ATR uses a property of total internal reflection resulting in an evanescent wave. A beam of infrared light is passed through the ATR crystal in such a way that it reflects at least once off the internal surface in contact with the sample. This reflection forms the evanescent wave which extends into the sample.

  5. Infrared spectroscopy - Wikipedia

    en.wikipedia.org/wiki/Infrared_spectroscopy

    A useful way of analyzing solid samples without the need for cutting samples uses ATR or attenuated total reflectance spectroscopy. Using this approach, samples are pressed against the face of a single crystal. The infrared radiation passes through the crystal and only interacts with the sample at the interface between the two materials.

  6. ATR - Wikipedia

    en.wikipedia.org/wiki/ATR

    A US Navy hull classification symbol: Rescue tug (ATR) ATR: All Terrain Racing, a video game; ATR.1 certificate, in trade between the European Union and Turkey; ATR (company) (Auto-Teile-Ring), Germany; Average True Range, a market volatility indicator; ATR (TV channel), a Crimean Tatar television channel in Ukraine

  7. ARINC - Wikipedia

    en.wikipedia.org/wiki/ARINC

    ARINC 404 defines Air Transport Rack (ATR) form factors for avionics equipment installed in many types of aircraft. It defines air transport equipment cases and racking. [9] ARINC 407 is a manual for Synchro uses in aerospace systems

  8. Automatic target recognition - Wikipedia

    en.wikipedia.org/wiki/Automatic_target_recognition

    Automatic target recognition (ATR) is the ability for an algorithm or device to recognize targets or other objects based on data obtained from sensors.. Target recognition was initially done by using an audible representation of the received signal, where a trained operator who would decipher that sound to classify the target illuminated by the radar.

  9. Methane reformer - Wikipedia

    en.wikipedia.org/wiki/Methane_reformer

    The reaction takes place in a single chamber where the methane is partially oxidized. The reaction is exothermic due to the oxidation. When the ATR uses carbon dioxide the H 2:CO ratio produced is 1:1; when the ATR uses steam the H 2:CO ratio produced is 2.5:1 The reactions can be described in the following equations, using CO 2: