• 제목/요약/키워드: Yoon Ho

검색결과 12,338건 처리시간 0.06초

Absorbed Dose Distribution of Ho-166 Patch

  • Joh, Chul-Woo;Yoon, Seok-Nam;Yoon, Joon-Kee;An, Young-Sil;Hong, Sun-Pyo;Park, Kwang-Shin;Kim, Mi-Hwa;Choi, Kyung-Sik;Han, Hyun-Soo;Park, Kyung-Bae;Ryu, Jei-Man;Shin, Dong-Hyuk;Ye, Sung-Joon
    • 한국의학물리학회:학술대회논문집
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    • 한국의학물리학회 2006년도 제33회 추계학술대회 발표논문집
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    • pp.103-103
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    • 2006
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열상카메라를 이용한 애자의 열화에 관한 연구 (A Study on the Degradation of Insulators using Thermal Image Camera)

  • 김정태;김지홍;구자윤;윤지호;함길호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.1933-1935
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    • 2000
  • In this paper, it was tried to find out the minimum measurement range in the diagnosis of insulators using thermal image camera, for the purpose, leakage currents and thermal images were observed simultaneously for the insulators of which surface had been artificially polluted by salt fog. As a result. the surface temperature was increased with leakage currents. Also, the results of AC breakdown tests for the insulator of which temperature rise was more than 1 $^{\circ}C$ showed to be bad. Therefore, through the study on the relationship between leakage current, temperature rise and AC breakdown voltages, the diagnosis of the insulator in site would be possible using the thermal image camera.

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도체접속부 열화에 대한 수명온도상승 모델 (Lifetime Temperature Rise Model for the Degradation of Electric Connections/Contacts)

  • 김정태;김지홍;구자윤;윤지호;함길호
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 2000년도 하계학술대회 논문집 C
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    • pp.1611-1613
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    • 2000
  • In this study in order to find out the trends and the residual lifetime for electric connections/contacts using infrared image camera, "lifetime temperature rise model" is theoretically proposed on the base of "lifetime resistance model" and to prove this theory, experiments have been performed for various kinds of electric connections/contacts. Two suggestions have been builded up or the "lifetime temperature rise model" ; one is the linear relationship between the temperature rise $\Delta K$ and contact resistance, and the other is the functional relationship between the temperature of electric connections/contacts and the operating time which ascribed in the "lifetime resistance model". From the experimental results, measured values were quite similar to the theoretical value so that two suggestions in "lifetime temperature rise model" were appeared to be correct.

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Vision-Based Real-Time Motion Capture System

  • Kim, Tae-Ho;Jo, Kang-Hyun;Yoon, Yeo-Hong;Kang, Hyun-Duk;Kim, Dae-Nyeon;Kim, Se-Yoon;Lee, In-Ho;Park, Chang-Jun;Leem Nan-Hee;Kim, Sung-Een
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2001년도 ICCAS
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    • pp.171.5-171
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    • 2001
  • Information that is acquired by adhered sensors on a body has been commonly used for the three-dimensional real-time motion capture algorithm. This paper describes realtime motion capture algorithm using computer vision. In a real-time image sequence, human body silhouette is extracted use a background subtraction between background image and the reference image. Then a human standing posture whether forward or backward is estimated by extraction of skin region in the silhoutte. After then, the principal axis is calculated in the torso and the face region is estimated on the principal axis. Feature points, which are essential condition to track the human gesture, are obtained ...

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퍼지 알고리즘을 이용한 DC 모터 속도제어 (DC Motor Speed Control Using Fuzzy Algorithm)

  • 김윤호;윤병도;조성진
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1992년도 하계학술대회 논문집 B
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    • pp.1238-1241
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    • 1992
  • The series type DC motor is normally nonlinearly modeled, but in this paper, the nonlinear model is linearized for the speed control. The proposed algorithm is constructed by the fuzzy logic controllers. Then the system is investigated for the effects of changes by the scale factor, and fuzziness of fuzzy variables.

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