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손민우 한국낙농육우협회 1999 낙농·육우 Vol.19 No.3
종축개량을 통한 고능력우 위주의 목장경영을 위해 '87년부터 종축개량을 실시하여 현재는 전 두수가 혈통등록이 되어 있고 젖소개량부로부터 검정등록을 실시하면서 검정성적을 기록 관리하며 개체별 관리를 철저히 하고 근친 및 형질개량을 위하여 우수한 고능력우의 정액을 이용하고 '90년도부터는 자가인공수정을 시키고 있다.
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손민우,성진영,정은성,전경수 한국수자원학회 2011 한국수자원학회논문집 Vol.44 No.3
본 연구에서는 기후변화 요소를 반영하여 홍수취약성지표 (Flood Vulnerability Index, FVI)를 개발하였고 이를 북한강 유역의 6개 중권역에 적용하였다. 기후변화 요소를 고려하기 위해 IPCC의 CGCM3 모형의 A1B와 A2 시나리오를 이용하였고 일단위로 축소화하기 위해 SDSM (Statistical Downscaling Model) 모형을 이용하였다. 홍수취약성 인자를 선정하기 위해 지속가능성 평가모형인 추진력-압력-상태-영향-반 This study aims to develop the Flood Vulnerability Index (FVI) and apply it to the Bukhan River Basin. A1B and A2 scenarios of CGCM3 of IPCC were adopted and SDSM (Statistical Downscaling Model) was used to downscale the original data to the daily data. D
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높은 레이놀즈수를 가진 난류 진동 경계층에서의 k-ε과 k-ω 난류모형의 비교
손민우,이관홍,이길성,이두한 한국수자원학회 2011 한국수자원학회논문집 Vol.44 No.3
본 연구는 난류현상의 모형화를 위해 널리 이용되는 k-과 k- 난류모형을 비교하는 것이 목적으로, 횡방향 흐름이 무시될 수 있는 U-튜브 모양의 터널형 수로 내 높은 레이놀즈수를 가진 진동 경계층 흐름에 두 난류해석방법을 적용하였다. 난류모형의 적용은 1차원 연직 모형을 통해 이루어지며, 수치 모의 결과, 유속의 분포와 난류운동에너지 (turbulent kinetic energy) 모두에서 두 모형이 매우 유사한 결과를 나타낸다. 이를 통하여, 횡방향 The aim of this study is to compare k- and k- closures under the condition of oscillatory layer flow at high Reynolds number. A one dimensional vertical model incorporated with flow momentum equations and turbulence models (k- and k-) is applied to the la
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손민우,문대인,신은혜,오홍근,홍선화,한상준,이현아,정영호,김옥진 충북대학교 동물의학연구소 2013 Journal of Biomedical and Translational Research Vol.14 No.1
The anti-diabetes mechanism of silkworm Bombyx mori L. powder and extracts was found to inhibit the activity of α-glycosidase. The major functional component of silkworm powder was 1-deoxynojirimycin (1-DNJ), which exerts a blood glucose-lowering effect. In this study, we aimed to compare the effects of the supplements, including red ginseng extract on the functional components of silkworm. Fifty silkworm larvae were divided into the control group (Con, N=50), group A (A, artificial diet 95% and mulberry leaf powder 5%), group B (B, artificial diet 95% and mulberry powder 5%), group C (C, artificial diet 95% and Rubus coreanus remainders 5%), group D (D, artificial diet 95% and red ginseng extract 5%), and group E (E, artificial diet 95% and yeast powder (Saccharomyces cerevisiae). Body weights and length of silkworm larvae showed significant improvement in group A, D. In particular, the growth rate in group D (artificial diet 95% and red ginseng extract 5%) was larger than that of Con. In addition, the results showed that 1-DNJ concentration was significantly largest in group D. From these results, it is concluded that the addition of red ginseng extract may be effective for larval growth and 1-DNJ accumulation in silkworm rearing with an artificial diet.
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손민우,김도용 한국도시환경학회 2020 한국도시환경학회지 Vol.20 No.1
In this study, the flow characteristics in building canyon by the surface flow regimes associated with air flow over buildings were numerically investigated using a computational fluid dynamics (CFD) model. The experimental conditions were constructed with the building arrays of increasing W (width of building canyon) / H (building height) ratios. The numerical analysis was conducted with vector fields and wind velocity components in building canyon. In the cases of W/H=1.0 and W/H=2.0, the vertical descending air current at leeward building side and the ascending air current at windward building side were distinctly presented with a single vertical vortex in building canyon, as the characteristics of the skimming flow (SF). In the cases of W/H=3.0 and W/H=4.0, the wake interference flow (WIF) was developed that the vertical ascending air current at the top (z/H=1.0) of leeward building and the separated horizontal flow with the positive/negative values for the wind velocity of x-direction at the middle layers were presented in building canyon. In the cases of W/H=5.0 and W/H=6.0, the separated horizontal flow of x-direction was expanded to the bottom of building canyon, as the characteristics of the isolated roughness flow(IRF).
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