4 research outputs found

    Observation of Air Shower in Uijeongbu Area using the COREA Prototype Detector System

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    We report the study of high energy cosmic rays in Uijeongbu area using a cosmic-ray detector array system. The array consists of three detector stations, each of which contains a set of three scintillators and PMTs, a GPS antenna along with data acquisition system. To identify air shower signals originating from a single cosmic ray, time coincidence information is used. We devised a method for estimating the energy range of air shower data detected by an array of only three detectors, using air shower simulation and citing already known energy spectrum. Also, Fast Fourier Transform(FFT) was applied to study isotropy

    초대칭과 초중력의 우주론적 측면

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    Thesis (doctoral)--서울대학교 대학원 :물리학과,1995.Docto

    A Study on the Current Characteristic of Full Bridge Series Inverter

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    Performance Improvement of a Mechanical Hydraulic Governor for Marine Diesel Engines

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