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임용우(Y. W. Rim),김기용(K. Y. Kim),김맹중(M. J. Kim),성병렬(B. R. Sung),임영철(Y. C. Lim),정의수(E. S. Chung),신홍균(H. K. Shin),김용선(Y. S. Kim) 한국잡초학회·한국잔디학회 2003 Weed & Turfgrass Science Vol.17 No.2,3
Growth characteristics such as density(quality), covering speed, green period, disease resistance, heading existence(number of seeds) and other characteristics were examined for selection of superior lines among the 133 zoysiagrass lines collected in 2001. Six superior lines were selected and the results were summarized as follows.<br/> Superior line, J01067 was longest for green period among the 133 zoysiagrasses and stayed green until the beginning of November. Leaf width of J01106 and J01129 lines was very narrow as 1.5㎜ and 2㎜, respectively and superior for density(quality), covering speed and disease resistance. J01122 line was selected for strongest disease resistance among the lines of Zoysia japonica. Leaf width of J01128 was 3.2㎜ showing midium type and similar to standard cultivar, Sunburst. This line also showed higher density and strong disease resistance like J01106 and J01129.<br/> Five growth characteristics for morphological classification of 133 zoysiagrass lines<br/> was used and divided into 3 cluster groups. Of 133 lines, 6 standard cultivars and 6 superior lines were classified as follows. First cluster group contained Belare, Meyer, Anyang-jungji, J01067, J01122, and second group contained S-94 and J01105, and third group contained Sunburst, Konhee, J01106, J01128 and J01129.<br/> <br/>
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김정중(J.J. Kim),김형태(H. T. Kim) 한국전산유체공학회 1998 한국전산유체공학회 학술대회논문집 Vol.1998 No.-
In this paper. incompressible two-dimensional Navier-Stokes equations are numerically solved for the study of steady laminar flow around a body with the wall effect. A second-order finite difference method is used for the spatial discretization on the nonstaggered grid system and the 4-stage Runge-Kutta scheme for the numerical integration in time. The pressure field is obtained by solving the pressure-Poisson equation with the Neumann boundary condition. To investigate the wall effect. numerical computations are carried out for the NACA 0012 section at the various blockage ratios. The pressure and skin friction on the foil surface. velocity profile in its wake and drag coefficient are investigated as functions of the blockage ratio.
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김정중(J.J. Kim),김형태(H.T. Kim),반석호(S.H. Van) 한국전산유체공학회 1998 한국전산유체공학회 학술대회논문집 Vol.1998 No.-
A computer code has been developed for the computation of the viscous flow around a ship model with the free surface. In this code, the incompressible Reynolds-averaged Navier-Stokes equations are solved numerically by a finite difference method which employes second-order finite differences for the spatial discretization and a four-stage Runge- Kutta scheme for the temporal integration of the governing equations. For the turbulence closure, a modified version of the Baldwin-Lomax model is exploited. The location of the free surface is determined by solving the equation of the kinematic free-surface condition using the Lax-Wendroff scheme and the boundary-fitted grid is generated at each time step so that one of the grid surfaces always coincides with the free surface. An inviscid approximation of the dynamic free-surface boundary condition is applied as the boundary conditions for the velocity and pressure on the free surface. To validate the computational method and the computer code developed in the present study, the numerical computations are carried out for both Wigley parabolic hull and Series 60 CB=0.6 ship model and the computational results are compared with the experimental data.
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실시간 침입 탐지 및 대응을 위한 String Matching 알고리즘 개발
김주엽(J.Y. Kim),김준기(J.G. Kim),한나래(N.R. Han),강성훈(S.H Kang),이상후(S.H. Lee),예홍진(H.J. Yeh) 한국정보과학회 2004 한국정보과학회 학술발표논문집 Vol.31 No.1A
최근 들어 웜 바이러스의 출현과 더불어, 인터넷 대란과 같은 서비스 거부 공격의 피해 사례가 급증하고 있다. 이에 따라 네트워크 보안이 많은 관심을 받고 있는데, 보안의 여러 분야 가운데에서도 특히 침입탐지와 대응에 관한 연구가 활발히 이루어지고 있다. 또한 이러한 작업들을 자동화하기 위한 도구들이 개발되고 있지만 그 정확성이 아직 신뢰할 만한 수준에 이르지 못하고 있는 것이 지금의 현실이다. 본 논문에서는 이벤트 로그를 분석하여 침입 패턴을 예측하고, 이를 기반으로 자동화된 침입 탐지 및 대응을 구현할 수 있는 String Matching 알고리즘을 제안하고자 한다.
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육우 수정란의 간역동결 및 융해방법에 관한 연구 4 . 내동제에 sucrose 첨가시 간역동결과 식빙방법이 FDA test 에 의한 가토수정란 생존율에 미치는 영향
김중계(J . K . Kim),김철균(C . K . Kim),강만종(M . J . Kang),장덕지(D . J . Chang),김승호(S . H . Kim) 한국축산학회 1988 한국축산학회지 Vol.30 No.10
Effects of simplified procedures of freezing in a liquid nitrogen container and seeding on rabbit embryo survival rates were determined using the FDA test. The results found are summarized as follows: 1. When a single-step addition and removal of a cryoprotectant and a diluent, both containing 10% sucrose was used, seeding with a pincette resulted in a lower FDA test score (2.8) than that without seeding (3.2), but there was no significant differences. 2. Test score was 3.1, 3.2, 3.3 or 3.0 for embryos frozen in a liquid nitrogen container at the rate of 0.3℃, 3^5℃, 15℃/min or frozen in the gas phase 2∼5 mm above the liquid nitrogen and then inserted them into the liquid nitrogen, respectively. No significant differences were found between the freezing methods. 3. The FDA test was considered to be a simple and inexpensive procedure, as compared to the conventional test of embryo survival after culturing in CO₂ incubator.
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대한소아외과학회 회원의 1995년도 진료현황 및 수련경력 설문조사
김우기,김상윤,김신곤,김인구,김재억,김종석,김현학,박귀원,박영식,박우현,박주섭,송영택,양정우,오수명,이두선,이명덕,이석구,이성철,장수일,정성은,정풍만,최금자,최순옥,허영수,황의호,Kim, W.K.,Kim, S.Y.,Kim, S.K.,Kim, I.K.,Kim, J.E.,Kim, C.S.,Kim, H.H.,Park, K.W.,Park, Y.S.,Park, W. 대한소아외과학회 1997 소아외과 Vol.3 No.1
To understand the current status of pediatric surgical practice of the members of the Korean Association of Pediatric Surgeons, a survey of the practice of the 31 members in both 1994 and 1995. Twenty five members(80%) representing 20 hospitals responded. An average of four hundred and seventy four cases pediatric surgical operations were performed at individual institution in 1995 with 40 newborn cases. Eighteen members(72%) are currently working at university hospital. Fourteen institutions(70%) are currently classified as tertiary by the health insurance agency. The majority(15 to 60%) of members are working in the metropolitan Seoul area, while five in Taegu area. Sixteen members reported having the title of department head/director. Four members reported occasional non-pediatric surgical practice. Nine members out of 20 reported having independent pediatric surgical out-patient clinic before the establishment of the association(1985). Eight out of 15 members reported being appointed chief of pediatric surgery before 1985. In 20 institutions, 34 full time physicians(27 members, reportedly) are working in pediatric surgery. In regarding to pediatric surgical training, 16 members(64%) received an average of 16 months of training abroad, 5 members trained at home and abroad, and 4 from only at home. There are no differences in length of training periods in these groups. Twenty one members received their basic pediatric surgical training before 1985, the year of inauguration of the association. Twelve members received post-pediatric surgery refresher courses averaging 11 months' duration, after 2-11 years. Thirteen participants of this study belongs to the founding members of the association.
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