• 제목/요약/키워드: Cho Ji-Hoon

검색결과 698건 처리시간 0.043초

미치광이 풀 중독에 의해 발생한 조증 (The Cases of Toxicity Caused By Scopolia Japonica Ingestion)

  • 최기훈;안희철;안무업;정재봉;김성은;배지훈;서정열;조준휘;박찬우;옥택근
    • 대한임상독성학회지
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    • 제2권1호
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    • pp.37-40
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    • 2004
  • In emergency department, the clinicians occasionally meet some patients with toxicity caused by ingestion of unknown wild edible greens or herbal agents. Due to there was few quantitative or qualitative studies about the mechanism or clinical features of these materials, it' s hard to approach to the patients and start the initial management in emergency department. Authors experienced the case of poisoning by Scopolia Japonica ingestion. We report this case with review of Scopolia Japonica.

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전력전자 회로해석을 위한 라이브러리 개발 (Library development for power electronics circuit analysis)

  • 서영수;송호빈;황락훈;이상용;김종래;장병곤;나승권;조문택
    • 대한전기학회:학술대회논문집
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    • 대한전기학회 1999년도 하계학술대회 논문집 F
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    • pp.2584-2586
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    • 1999
  • The purpose of this paper is to verify the appropriation of power electronics circuit by applying the most powerful and widely used simulator PSPICE and SIMULINK for adapted variable control technics. Power semiconductor macro modeled by SIMULINK such as DC motor and AC induction motor. Furthermore DC motor & AC induction motor are modeled by PSPICE through their algorithms. For proved these modelings accurate, simulation techniques which are generally used in the field of power electronics circuits are adapted in power electronics and systems

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The Vector Control of Induction Motor drives Speed Sensorless using a Fuzzy Algorithm

  • Seo, Young-Soo;Lee, Chun-Sang;Hwang, Lak-Hoon;Kim, Jong-Lae;Byong gon Jang;Kim, Joo-Lae;Cho, Moon-Tack;Park, Ki-Soo
    • 대한전자공학회:학술대회논문집
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    • 대한전자공학회 2000년도 ITC-CSCC -2
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    • pp.1013-1016
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    • 2000
  • In this study, the estimate speed of rotor in the induction motor with Model Reference Adaptive control System (MARC) principle and to study that vector control system feedbacks speed estimated to speed control system and its result is as follows; Considering with explanation an influence of speed estimation mechanism depend on error about the second resistance size established, it estimates the deviation of the second resistance establishment and exhibits a compensation method, what is more, it designs a reparation program using the fuzzy algorithm and testifies the result with the computer simulation. And besides, it composes the load torque estimation and estimates the load torque, as the result, feedback-compensating the result of estimation, it improves the efficiency. In consequence, it makes a good result for more powerful vector control system about the outside trouble.

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건선 영역 분할기법 비교분석 (Comparative Analysis of Segmentation Methods in Psoriasis Area)

  • 유현종;이지원;문초이;김은빈;백유상;장상훈;이언석
    • 한국정보처리학회:학술대회논문집
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    • 한국정보처리학회 2019년도 추계학술발표대회
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    • pp.657-659
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    • 2019
  • 본 논문에서는 피부 이미지에서 건선 병변만을 가장 효과적으로 분할 할 수 있는 분할기법 선별을 목표로 한다. Interactive graph cuts (IGC)와 Level set method (LSM)를 사용하여 건선 영역을 분할한 후 Jaccard Index (JI)와 Dice Similarity Coefficient (DSC)을 사용하여 건선 영역에 효과적인 분할 방법을 제안한다.

Synthesis of N,N',N"-Trisubstituted Thiourea Derivatives and their Antagonistic Effect on the Vanilloid Receptor

  • Park, Hyeung-Geun;Park, Mi-Kyung;Choi, Ji-Yeon;Choi, Sea-Hoon;Lee, Ji-Hye;Suh, Young-Ger;Cho, Ha-Won;Oh, Uh-Taek;Lee, Jee-Woo
    • 대한약학회:학술대회논문집
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    • 대한약학회 2003년도 Proceedings of the Convention of the Pharmaceutical Society of Korea Vol.1
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    • pp.253.1-253.1
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    • 2003
  • Twenty-seven N,N',N"-trisubstituted thiourea derivatives were prepared. Among them, 1- [3-(4'-hydroxy-3'-methoxy-phenyl)-propyl] -1,3-diphenethyl-thiourea (81, IC$\sub$50/= 0,32 $\mu\textrm{m}$), showed 2-fold higher antagonistic activity than that of capsazepine (3, IC$\sub$50/= 0,65 $\mu\textrm{m}$) against the vanilloid receptor in a Ca$\^$2+/ -influx assay.

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