• Title/Summary/Keyword: college of science-engineering

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RNA viruses in Pleurotus ostreatus

  • Lee, Jung-Sun;Lee, Nam-Joo;Ha, Si-Jung;Kim, So-Yeon;Kang, Eun-Joo;Kang, Dong-Suk;Rho, Hyun-Su;Chang, Moo-Ung;Lee, Jong-Kyu;Lee, Kyung-Hee;Lee, Hyun-Sook
    • Proceedings of the Korean Society of Plant Pathology Conference
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    • 2004.10a
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    • pp.46-46
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    • 2004

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Optical Method to Determine Gait Parameters Using Position Sensitive Detector

  • Jung, Gu-In;Kim, Ji-Sun;Lee, Tae-Hee;Choi, Ju-Hyeon;Oh, Han-Byeol;Kim, A-Hee;Goh, Bong-Jun;Kim, Jun-Sik;Lee, Eun-Suk;Jun, Jae-Hoon
    • Journal of Electrical Engineering and Technology
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    • v.10 no.5
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    • pp.2155-2161
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    • 2015

  • This study suggests an optical method to measure cardinal of gait (step width, step length, and stride length) with position sensitive detector (PSD). The effect of reflector’s shape (flat and cylinder) on the PSD output voltage was examined for the application of the suggested system to real situations with a curved shape reflector (e.g. shoes). Various mathematical models were evaluated to find the optimal equation for the distance measurement. Considering the effect of shape on detected signal, the inverse polynomial model was developed. The suggested method is simple to operate, low in cost, small in size, and can evaluate gait parameters in real time. This method is expected to be useful in the field of rehabilitation and sport science

  • https://doi.org/10.5370/JEET.2015.10.5.2155 인용 PDF KSCI KPUBS HTML

A Study on Angle Measurements Using an Optical Fiber (광섬유를 이용한 각도 측정 연구)

  • Kim, A-Hee;Kim, Ji-Sun;Oh, Han-Byeol;Kim, Jun-Sik;Goh, Bong-Jun;Lee, Eun-Suk;Jung, Hyon-Chel;Choi, Ju-Hyeon;Baek, Jin-Young;Jun, Jae-Hoon
    • The Transactions of The Korean Institute of Electrical Engineers
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    • v.64 no.4
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    • pp.605-611
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    • 2015

  • The measurement and analysis of angular change have been studied in many fields. This study developed an angle measurement technique with optical fiber and photodiode. The position and attached angle of photodiode were investigated to find the proper combination of parameter. The results showed that the increased measuring range was achieved when the position of detector was away from the center of rotation. Inverse mathematical model was used to obtain angular changes with an optical fiber. The applications of this study include in optical sensor, joint angle measurement, and sport science.

  • https://doi.org/10.5370/KIEE.2015.64.4.605 인용 PDF KSCI KPUBS HTML