EPAM

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  • EPAM
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  • The Electron, Proton, and Alpha Monitor (EPAM) on the Advanced Composition Explorer (ACE) is composed of five telescope apertures of three different types. Two Low Energy Foil Spectrometers (LEFS) measure the flux and direction of electrons above 30 keV (geometry factor = 0.397 cm2 sr), two Low Energy Magnetic Spectrometers (LEMS) measure the flux and direction of ions greater than 50 keV (geometry factor = 0.48 cm2 sr), and the Composition Aperture (CA) measures the elemental composition of the ions (geometry factor = 0.24 cm2 sr). The telescopes use the spin of the spacecraft to sweep the full sky. Solid-state detectors are used to measure the energy and composition of the incoming particles. EPAM was designed and developed by ther Johns Hopkins Applied Physics Laboratory. See: http://sd-www.jhuapl.edu/ACE/EPAM/ Group: Instrument_Details Entry_ID: EPAM Group: Instrument_Identification Instrument_Category: Solar/Space Observing Instruments Instrument_Class: Particle Detectors Short_Name: EPAM Long_Name: Electron, Proton, and Alpha Monitor End_Group Group: Instrument_Associated_Sensors Short_Name: CA Short_Name: LEMS Short_Name: LEFS End_Group Group: Associated_Platforms Short_Name: ACE End_Group Online_Resource: http://sd-www.jhuapl.edu/ACE/EPAM/ Sample_Image: http://sd-www.jhuapl.edu/ACE/EPAM/pics/epam_image.jpg Group: Instrument_Logistics Data_Rate: 0.16 kpbs Instrument_Start_Date: 1997-08-25 Instrument_Owner: Johns Hopkins University, Applied Physics Lab End_Group End_Group
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  • Electron, Proton, and Alpha Monitor
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Abstract from DBPedia
    EPAM (Elementary Perceiver and Memorizer) is a psychological theory of learning and memory implemented as a computer program. Originally designed by Herbert A. Simon and Edward Feigenbaum to simulate phenomena in verbal learning, it has been later adapted to account for data on the psychology of expertise and concept formation. It was influential in formalizing the concept of a chunk. In EPAM, learning consists in the growth of a discrimination network.EPAM was written in IPL/V. The project was started in the late 1950s with the aim to learn nonsense syllables. The term nonsense is used because the learned patterns are not connected with a meaning but they are standing for their own. The software is working internally by creating a decision tree. An improved version is available under the name “EPAM-VI”.

    (Source: http://dbpedia.org/resource/EPAM)