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체질(體質)에 따른 혈중(血中) 성분(成分)의 차이(差異)에 관(關)한 실험적(實驗的) 고찰(考察)
최문규,Choi, Moon-Kyu 대한한방내과학회 1992 大韓韓方內科學會誌 Vol.13 No.2
Comparative blook analysis was carried out to investigate the difference of blood constituent in four types of physical constitution. Isoleucine(Ile), Alanine(Ala), Cysteine(Cys), Tyrosine(Tyr), Methionine(Met) were measured. And the following results were obtained: 1. The value of Isoleucine(Ile) on the constitution didn't shown significant difference, but between the value of SO-YANG-IN and SO-EUM-IN showed significant difference. 2. The value of Alanine(Ala) on the constitution didn't shown significant difference. 3. The value of Cysteine(Cys) on the constitution didn't shown significant difference, but between the value of SO-YANG-IN and SO-EUM-IN showed significant difference. 4. Between the value of control group and SO-YANG-IN showed significant difference, and between the value of SO-YANG-IN and TAE-EUM-IN, SO-YANG-IN and SO-EUM-IN showed significant difference. 5. Between the value of control group and SO-YANG-IN showed significant difference.
지진해일 전파 수치해석을 위한 실용적인 분산보정기법 적용
최문규,하태민,조용식,Choi, Moon-Kyu,Ha, Tae-Min,Cho, Yong-Sik 한국방재학회 2008 한국방재학회논문집 Vol.8 No.4
지진해일의 초기 파장은 수십에서 수백 킬로미터에 이른다. 따라서 보다 정확한 지진해일 전파 수치모의를 위해 파장의 크기에 따라 중요성이 변하는 분산효과를 고려하여야 한다. 최근에 분산효과를 고려할 수 있는 실용적인 분산보정기법이 개발되었다(Cho 등, 2007). 분산보정기법은 일정 수심에서 해석해와 비교함으로서 검증되었다. 하지만 아직 수심이 변화하는 실제지형에 적용이 되지 않았다. 본 연구에서는 개발된 모형의 실제 지형에서의 적용성을 검토하였다. 모형의 적용성 검토를 위해 역사 지진해일인 1983 동해 중부 지진해일과 1993 북해도 남서 외해 지진해일을 재현하였다. 대상 지역은 당시 검조기록이 존재하는 속초, 묵호, 포항항이고 지진해일 첫 파 도착시간과 검조소 위치에서의 최대 파고를 비교함으로서 적용성을 검토하였다. The initial wave lengths of tsunamis can be several tens to hundreds kilometers. Thus, the importance of the frequency dispersive effects in proportion to variation of the wave length, and should be properly considered in numerical simulation of tsunami propagation for a better accuracy. Recently, a practical dispersion-correction scheme has been developed by adding dispersion-correction terms(Cho et al., 2007). The new model employing the numerical technique has been verified by comparing numerical results with available analytic solutions, however, the new model has not yet been applied on a real topography. In this study, the new model is applied on a real topography and its applicability is examined. To study the applicability of the new model, two historical tsunami events are simulated for Sokcho, Mukho and Pohang harbors, with the tide gage records. Numerical results, the arrival time and the maximum water level at the tidal stations, are compared with observed data at each harbor.
지진해일 해석을 위한 실용적인 기법의 적용 - 부산 신항만 지역
최문규,조용식,Choi,Moon-Kyu,Cho,Yong-Sik 한국방재학회 2007 한국방재학회 학술발표대회논문집 Vol.2007 No.1
In this study, new dispersion-correction terms are added to leap-frog finite difference scheme for the linear shallow-water equations with the purpose of considering the dispersion effects of the linear Boussinesq equations for the propagation of tsunamis. The new model is applied to near Gadeok island in Pusan about The Central East Sea Tsunami in 1983 and The Hokkaldo Nansei Oki Earthquake Tsunami in 1993 one simulated in the study.
지진해일 전파특성을 고려한 실용적인 분산보정 기법의 적용 - 속초항
최문규,이욱한,이성재,조용식,Choi. Moon-Kyu,Lee. Uk-Han,Lee. Sung-Jae,Cho. Yong-Sik 한국방재학회 2008 한국방재학회 학술발표대회논문집 Vol.2008 No.1
Pratical dispersion-correction scheme is applicated to simulate the distant propagation of tsunami. This scheme is based on the leap-frog finite difference scheme for the linear shallow-water equations. The new scheme has the advantage of using the constant spatial grid size and time step size even in area of variable depths. And this new model constructed by using the 2nd upwind scheme, dynamic linking method, and staggered grid system. This model is simulated to near Sokcho harbor about The Central East Sea Tsunami in 1983. And this result is compared to tide gage and result of former model.
최문규(Moon-Kyu Choi),송성태(Sung-Tae Song),장호환(Ho-Hwan Jang) 한국철도학회 2013 한국철도학회 학술발표대회논문집 Vol.2013 No.5
정거장의 위치 및 역간거리는 노선, 열차평균속도, 수요, 운송수입 등에 가장 큰 영향을 미치는 요소로 고속화, 기존선 개량 및 신선 건설시 주요 논의의 대상이 되고 있으며, 우리나라의 평균 역간거리는 고속철도 46km, 일반철도 6.7km, 광역철도 2.1km로 외국의 59~84% 정도로 짧은 수준으로, 과다한 정차역은 속도경쟁력을 저하, 사업비를 증가시켜 철도투자를 저해하는 주요 요인으로 작용하고 있다. 이를 개선하기 위해 외국 10개국의 역간거리를 조사하여 비교하고, 열차 최고 운행속도, 표정속도, 수요 및 사업비 기준으로 적정 역간거리를 산정한 결과, 고속철도는 57.1km, 일반철도는 7.3km, 광역철도는 2.2km 이상이 적정한 것으로 분석되었다. 본 연구를 통해 그 동안 철도건설 단계에서 논란이 되어 온 철도역의 설치 위치 등에 대해 노선별로 적정한 역간거리를 제시함으로써 역 신설과 관련된 소모적 갈등을 최소화하고 경제적이고 쾌적한 철도를 건설하는데 활용하고자 한다. The location and spacing of railway stations, which have a significant effect on planning routes, average train speed, demand, and transportation revenue, have been one of the major issues in the speed-up, renewal of conventional lines, and the construction of new lines. The length of the average spacing of the railway stations in South Korea is 46km for high-speed lines, 6.7km for conventional lines, and 2.1km for inter-city lines, which is about 59~84% level of surveyed countries. Against this backdrop, building too many stations, which brings a huge increase in project costs, is obstacles to the investment in the railway industry and has lowered the competitiveness compared with other transportation modes in terms of speed. In order to improve this situation, we have researched the average spacing of the stations of ten foreign countries and the influential factors, such as maximum train speed, commercial speed, demand, and project costs, for determining their spacing. This study has concluded that the proper spacing of the railway station is 57.1km for high-speed lines, 7.3km for conventional lines, and 2.2km for inter-city lines. Thus, this study, which offers the proper spacing of the stations, will contribute to enhancing efficient and economic railway construction, minimizing the conflict amid building additional stations.