• 제목/요약/키워드: college of science and 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
    • 한국식물병리학회:학술대회논문집
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    • 한국식물병리학회 2004년도 The 2004 KSPP Annual Meeting & International Symposium
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    • pp.46-46
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    • 2004
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광섬유를 이용한 각도 측정 연구 (A Study on Angle Measurements Using an Optical Fiber)

  • 김아희;김지선;오한별;김준식;고봉준;이은숙;정현철;최주현;백진영;전재훈
    • 전기학회논문지
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    • 제64권4호
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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.

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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    • 제10권5호
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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

Facile Synthesis of CdTe Nanorods from the Growth of Te Nanorods

  • Xu, Weiwei;Niu, Jinzhong;Zheng, Shuang;Tian, Guimin;Wu, Xinghui;Cheng, Yongguang;Hu, Xiaoyang;Liu, Shuaishuai;Hao, Haoshan
    • 대한화학회지
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    • 제61권4호
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    • pp.185-190
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    • 2017
  • One-dimensional CdTe nanorods (NRs) are obtained by the reaction of various Cd precursors with single crystalline Te nanorod templates, which are pre-synthesized from Te precursors by a simple and reproducible solvothermal method. Throughout the process, the diffraction intensity of different crystal facets of single crystalline Te NRs varied with reaction times. Finally, by alloying Cd ions along the axial direction of Te NRs, polycrystalline cubic phase CdTe NRs with diameters of 80-150 nm and length up to $1.2-2.4{\mu}m$ are obtained. The nucleation and growth processes of Te and CdTe NRs are discussed in details, and their properties are characterized by XRD, SEM, TEM, Raman scattering, and UV-vis absorption spectra. It was found that the key elements of synthesizing CdTe NRs such as reaction temperatures and Cd sources will strongly influence the final shape of CdTe NRs.