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김태철,Kim, Tae-Cheol 벤처기업협회 2006 벤처다이제스트 Vol.90 No.-
2005년 세계 경제시장의 화두는 BRICs(브라질, 러시아, 인도, 중국)였다. 많은 인구, 넓은 영토, 풍부한 자원이라는 공통점을 가진 이들 4개국은 포화된 기존 시장의 한계를 대체할 수 있는 신천지로 인식되었다. 한국의 기업들은 BRICs 시장에 발 빠르게 접근했고, 몇몇 기업은 높은 경쟁력을 유지하며 선전하고 있다. 하지만 BRICs 4국 중 러시아 시장에서는 아직까지 한국기업의 활동사항이 미미한 실정이다.
농촌유역에서의 초기강우손실 특성분석과 계수 산정식 개발 - 금강.삽교천 중소유역을 중심으로-
김태철,이정선,Kim, Tai-Cheol,Lee, Jeong-Seon 한국농공학회 2008 한국농공학회논문집 Vol.50 No.6
It is important to estimate accurate effective rainfall to analyse flood flow and long-term runoff for the rational planning, design, and management of water resource. The initial abstraction is also important to estimate effective rainfall. The Soil Conservation Service (SCS) has developed a procedure and it has been most commonly applied to estimate effective rainfall. But the SCS method still has weak points, because of unnatural assumptions such as antecedent moisture conditions and initial abstraction. The coefficient of initial abstraction(K) is depending on the soil moisture condition and antecedent rainfall. The maximum storage capacity of Umax which is calibrated by stream flow data in the proposed watershed was derived from the DAWAST(DAily WAtershed STreamflow) model. The values of K obtained from 69 storm events at the five watersheds are ranging from 0.133 to 0.365 and its mean value is 0.207. Effective rainfall could be estimated more reasonably by introducing new concept of initial abstraction. The equation of $K=0.076Sa^{0.255}$ was recommended instead of 0.2 and it could be applicable to the small-medium rural watersheds.
김태철,Kim, Tae-Cheol 벤처기업협회 2006 벤처다이제스트 Vol.91 No.-
한국과 러시아는 정치, 경제, 문화, 통일 등 여러 부문에서 동반자 관계를 확립해야 한다. 그러나 아직 한국이 러시아의 발전 속도에 적절히 대응하지 못하고 있는 것이 현실이며, 이에 2006년은 한국 기업들의 러시아 진출 원년이 되어야 할 것이다.
김태철,이상훈,김동호,배도환,허민,Kim, Tae-Cheol,Lee, Sang-Hoon,Kim, Dong-Ho,Bae, Do-Hwan,Hur, Min 대한생식의학회 1999 Clinical and Experimental Reproductive Medicine Vol.26 No.1
This study was performed to identify the effect of the hydrosalpinx fluid on sperm motility. It has been reported that the patients with hydrosalpinx show the outstandingly lower success rate than other patients having infertility by different factors. It is unclear that the cause of it is influenced by hydrosalpinx fluid directly or by secondary chronic inflammation of endometrium. We wanted to know if the hydrosalpinx fluid influences sperm motility parameters directly such that it is related to the development of infertility. Therefore, using computer assisted semen analyzer (CASA), we observed, from February to July, 1997, how sperm motility, sperm progressive motility, sperm curvilinear velocity, sperm lateral head displacement, sperm straightness and sperm linearity change after treating normal sperm with hydrosalpinx fluid to evaluate sperm function on infertility. The result was that the study group (n=32) has the tendency to differ from the control group (n=32) on sperm motility, progressive motility, curvilinear velocity, lateral head displacement, straightness and linearity. We concluded that the hydrosalpinx fluid, with varying degree, directly has the harmful effects on sperm motility parameters, that is, curvilinear velocity, lateral head displacement and linearity of sperm which are related to the hyperactivation, hence decreased capacitation.
김태철,박성우,Kim, Tai-Cheol,Park, Sung-Woo 한국농공학회 1984 한국농공학회논문집 Vol.26 No.2
Monthly streanflow of watersheds is one of the most important elements for the planning, design, and management of water resources development projects, e.g., determination of storage requirement of reservoirs and control of release-water in lowflow rivers. Modeling of longterm runoff is theoretically based on water-balance analysis for a certain time interval. The effect of the casual factors of rainfall, evaporation, and soil-moisture storage on streamflow might be explained by multiple regression analysis. Using the basic concepts of water-balance and regression analysis, it was possible to develop a generalized model called the Regionalized Regression Model for Monthly Streamflow in Korean Watersheds. Based on model verification, it is felt that the model can be reliably applied to any proposed station in Korean watersheds to estimate monthly streamflow for the planning, design, and management of water resources development projects, especially those involving irrigation. Modeling processes and properties are summarized as follows; 1. From a simplified equation of water-balance on a watershed a regression model for monthly streamflow using the variables of rainfall, pan evaporation, and previous-month streamflow was formulated. 2. The hydrologic response of a watershed was represented lumpedly, qualitatively, and deductively using the regression coefficients of the water-balance regression model. 3. Regionalization was carried out to classify 33 watersheds on the basis of similarity through cluster analysis and resulted in 4 regional groups. 4. Prediction equations for the regional coefficients were derived from the stepwise regression analysis of watershed characteristics. It was also possible to explain geographic influences on streamflow through those prediction equations. 5. A model requiring the simple input of the data for rainfall, pan evaporation, and geographic factors was developed to estimate monthly streamflow at ungaged stations. The results of evaluating the performance of the model generally satisfactory.
용담댐에 의한 유역변경이 하류 대청댐 저수량 관리에 미치는 영향 경감 방안 연구
김태철,박정남,Kim Tai Cheol,Park Jung Nam 한국관개배수위원회 2000 한국관개배수논문집 Vol.7 No.2
As more water becomes necessary for agricultural, industrial and other purposes, certain regions are facing the water shortage. Accordingly, it is needed to transfer water over long distances from surplus to deficit areas. But, this inter-regional water t