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Circular-to-Rectangular Transition Duct 내부의 3차원 유동장에 관한 연구
조수용(S. Y. Cho),정희택(H. T. Chung),손호재(H. J. Son) 한국전산유체공학회 1999 한국전산유체공학회지 Vol.3 No.2
Predictive behaviors by the extended k-ε turbulence model and the standard k- e turbulence model are compared. Grid dependency is tested with the H-type grid as well as the O-type grid. Computations have been performed on a circular-to-rectangular transition duct. The Reynolds number is 390,000 based on the bulk velocity at the inlet. The computed axial velocity contours. transverse velocity profiles, static pressure contours, peripheral skin friction coefficient, peripheral wall static pressure distributions and turbulence kinetic energy have been compared with experimental results. The computed results obtained with the extended k-ε turbulence model show better agreement with experimental results than those obtained with the standard k-ε turbulence model. Comparing to the computed results obtained with the H-type grid and O-type grid, those with H-type grid seem to agree well with experimental results.
LCD Panel 불량 검사를 위한 영상처리 알고리즘 연구
조수용(S. Y. Cho),고국원(K. W. Ko),고경철(K. C. KO) 한국정밀공학회 2006 한국정밀공학회 학술발표대회 논문집 Vol.2006 No.5월
It is bringing out the importance of automated LCD testing equipment that satisfy a definite quality, confidence and testing speed, as LCD enterprises are recently expanding the production and facility investment in proportion to the sudden increase of LCD demand. So far, LCD inspection is however conducted by manual, or the confidence of existing testing equipment falls short of LCD enterprises"s standard. It is therefore important to develop the testing equipment that determines the quality of product for produvtion of an excellent LCD.
Circular-to-Rectangular Transition Duct 내부의 3차원 유동장에 관한 연구
조수용(S. Y. Cho),정희택(H. T. Chung),손호재(H. J. Son) 한국전산유체공학회 1999 한국전산유체공학회지 Vol.3 No.2
Predictive behaviors by the extended k-ε turbulence model and the standard k- e turbulence model are compared. Grid dependency is tested with the H-type grid as well as the O-type grid. Computations have been performed on a circular-to-rectangular transition duct. The Reynolds number is 390,000 based on the bulk velocity at the inlet. The computed axial velocity contours. transverse velocity profiles, static pressure contours, peripheral skin friction coefficient, peripheral wall static pressure distributions and turbulence kinetic energy have been compared with experimental results. The computed results obtained with the extended k-ε turbulence model show better agreement with experimental results than those obtained with the standard k-ε turbulence model. Comparing to the computed results obtained with the H-type grid and O-type grid, those with H-type grid seem to agree well with experimental results.
나정아(J. A. Na),이미정(M. J. Lee),김인호(I. H. Kim),김순규(S. K. Kim),허준용(J. Y. Hur),서호석(H. S. Saw),박용균(Y. K. Park),조수용(S. Y. Cho),주갑순(K. S. Ju) 대한산부인과학회 1999 Obstetrics & Gynecology Science Vol.42 No.10
We report a case of mos 45, X/46,XY mixed gonadal dysgenesis. An 22-year old female patient was admitted to our department for evaluation of primary amenorrhea. The chromosome karyotype of the patient was mos 45, X/46, XY. On the laparotomy there was an infantile uterus, fallopian tubes, and streak gonads. Bilateral gonadectomies were taken. Gonads showed tubular patterns and ovarian-like stroma histologically in left and right respectively so as to be diagnosed as mixed gonadal dysgenesis. The follow-up treatment has been combined estrogen-progesterone replacement therapy so far.