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        1950년대 서울番地案內圖와 서울商界略圖에 대한 지도학 및 역사지리학적 고찰

        양보경,장은미 서울시립대학교 부설 서울학연구소 2005 서울학연구 Vol.- No.24

        This paper aims to analyze Seoul Address Map published in 1956 and Seoul Commercial Map published in 1955 after Korean War. Two maps are converted into a raster format and partly vectorized to explore the contents of maps in cartographic aspects and advertisement items depicted with the map in historical-geographical aspect. The Seoul Address Map map is being housed at the map library of University of Kansas, while 1955 map at the map library at Yale University. Published by a private company (Daehan Annae Sa), it is different from the previous maps published (luring the period of Japanese conquest. The Seoul Address Map inclined about 45.58˚(stdev= 0.997) for Jongro street and 44.5479 (stdev= 3.031) for Euljiro from the horizontal line while the Seoul Commercial Map has the same inclination with modern digital maps and address Map published in 2001 with north side up. The Seoul Address Map does show less pictorial description for geographic features than Seoul Commercial Map. Seoul Address Map includes 64 advertisements most of which were hospitals, and securities(banking) located in Junggu and Jongrogu. The Commercial Map includes 67 advertisements, of which are other industrial product such as furniture, food and clothes with higher variety than the other map. Maps on Korea are scattered and housed at other countries and antique bookstores need to be monitored and digitalized for further studies for realistic reconstruction of space of genre de vie.

      • 초음속 과소팽창제트의 벽면 충돌에 관한 수치적 연구

        심은보 國立金烏工科大學校附設生産技術硏究所 1996 産業技術開發硏究 Vol.12 No.-

        In this study, a finite volume scheme has been developed to simulate the viscous supersonic underexpanded jet flows impinging into a wall. For the computation, the compressible axisymmetric Navier-Stokes equations are solved using a LU factored upwind method. Harten Yee's upwind TVD scheme is used for the inviscid explicit flux, whereas the implicit operator is reduced by Steger-Warming splitting and LU factorization. We have computed the underexpanded jet flow(Ma=2.2 and pressure ratio=1.2) for various nozzle-to-plate spacings and compared its results with the experiment to demonstrate the accuracy of the present algorithm. The numerical results show that a stagnation bubble exists near the stagnation point and its strength increases as nozzle-to-plate spacing decreases. Therefore, the viscous effects are very important in this region and thus viscous flow computations are inevitable for more accurate solutions.

      • 황토와 생석회의 혼합비율에 따른 축산폐수 처리에 관한 연구

        김보국,신은섭,원찬희 全北大學校 附設 都市및環境硏究所 1999 都市 및 環境硏究 Vol.14 No.1

        This study was conducted in order to investigate removal efficiency of turbidity, organic matter, nitrogen and phosphorus to reduce environmental pollution of treatment livestock wastewater with mixed proportion of loess and lime. The result of study, the removal of turbidity, COD_Cr and T-P increased along the dosage, and was to be fixed above the appropriate dosage. In the removal turbidity, the appropriate mixed proportion of loess and lime was Loess:Lime = 3:7, the appropriate dosage was 30g. In the removal COD_Cr, T-P and TKN was Loess:Lime = 3:7, 30g, Loess:Lime = 5:5, 20g, Loess:Lime = 5:5, 40g, respectively.

      • 한국형 인공심장 내의 혈류에 대한 수치해석적 연구

        심은보,박명수,여종영,고형종,박찬영,민병구 제주대학교 인공심장이식연구소 2001 인공심장 연구 Vol.2 No.1

        한국형 인공심장 내의 혈액 유동을 유한요소 코드인 ADINA를 사용하여 수치적으로 조사하였다. 그 동안 많은 실험을 통해서 밝혀진 중요한 문제점들 중의 하나는 바로 혈전 생성이다. 이것은 혈액 주머니내의 작용하는 과도한 높은 전단응력 또는 정체 영역과 밀접한 관련이 있다. 한국형 인공심장 내의 혈류는 액추에이터와 혈액주머니, 그리고 혈액의 상호작용에 의하여 정의될 수 있다. 여기에서 혈액은 비압축성, 뉴우턴 유체로 가정하였으며, 혈액주머니는 등방성 선형 고체재질로 가정하였다. 2차원 모델은 액추에이터와 혈액 주머니 사이의 접측 문제 및 고체-유체 상호작용 문제를 전부 고려하였다. 3차원 모델에서는 액추에이터에 의한 변형을 접촉문제를 혈액주머니 외부에 작용하는 압력조건으로 단순화하였다. 2차원 모델 계산결과에 의하면, 입구 및 출구 부근, 그리고 모서리 부근에서 전단응력의 세기가 매우 크다는 것을 발견할 수 있었다. 또한 위쪽 돌출부에서 속도가 매우 느려지는 정체 영역이 형성되었으며, 이는 실험에서 관찰된 혈전 생성영역과 거의 일치한다. 3차원 계산의 경우에도 역시 입구와 출구 부분에서 재순환 영역이 발견되었으며, 수축시에는 입구의 아래쪽에서, 이완시에는 출구의 아래쪽에서 정체영역이 생성됨을 알 수 있었다. One of the crucial problems which make the artificial heart operate improperly is the thrombus formation. Many experimental results show the thrombus formation is strongly retated with a high shear stress and the stagnation in the blood flow. Therefore study on the blood flow in artificial hearts is very important in a practical point of view. This thesis deals with the two- and three-dimensional unsteady blood flows in the Korean total artificial hearts(KTAH). It is numerically investigated by using the commercial finite element code ADINA. The flow in the sac of artificial heart results from the mutual interaction of the acuator, sac, and blood. Blood is assumed as an incompressible viscous Newtonian fluid, while the sac is considered to be elastic and isotropic solid material. The contact problem between the actuator and sac is included in the two-dimensional modelling. Because of the tremendously calculation time, the action of the actuator is replaced by the imposition of the time-varying pressure on the outer surface of the sac. Numerical results show a high shear stress distribution near the inlet and outlet corners of the sac. From two-dimensional calculation flow stagnation is seen to be found in the upper convex part of the sac. By comparing the numerical results with the experimental ones we can conclude the thrombus is generated in regions where blood flow stagnates or is very slow.

      • 보행훈련방법이 편마비 환자의 보행요소와 족저압에 미치는 영향

        김은정,황보각,권혁철 대구대학교 특수교육재활과학연구소 2009 再活科學硏究 Vol.27 No.2

        이 연구는 뇌졸중으로 인한 편마비 환자에게 보행훈련방법을 달리하였을 때, 일반적인 지면과 트레드밀, 불안정면을 이용한 보행훈련이 보행요소와 족저압에 미치는 영향을 알아보기 위하여 편마비 환자 30명을 지면과 트레드밀, 불안정면 보행훈련군으로 무작위 배정하고 각 치료군들은 주 5회, 8주 간의 보행훈련을 실시하였다. 실험 전과 후, 보행요소를 알아보기 위하여 보행속도, 보장, 보각과 족저압을 측정하여 수집된 자료를 분석하여 다음과 같은 결과를 얻었다. 이 연구의 결과를 종합해 보면 보행훈련방법에 따라 지면 보행훈련은 보행속도와 족저압 전족부, 트레드밀 보행훈련군은 보행속도와 보각, 족저압 중족부, 불안정면 보행훈련군은 보행속도와 보장, 보각에서 유의한 증가를 보였다. 이러한 결과는 뇌졸중으로 인한 편마비 환자에게 보행훈련방법을 달리함에 따라 많은 영향을 끼치어, 환경의 변화와 다양한 과제에 대한 적절한 반응을 만들어 낼 수 있음을 의미하며, 기능 회복의 임상적 접근에서 치료 중재의 시점과 기간, 제공되는 환경, 과제의 선택에 대한 광범위한 연구가 필요할 것으로 생각되어진다. Purpose : This study was performed for effects of gait component and plantar foot pressure on gait training way needed in gait with hemiplegic patients caused by cerebrovascular accident. Methods : Three groups of adult hemiplegia(n=30) were allocated randomly in this study : group I(TGT : treadmill gait training), group II(USGT : unstable surface gait training) and group III(SGT : surface gait training). The gait training was provided to experimental groups for 8 weeks(5 times a week). Measurements of pre and post experiment were gait velocity, step length, toe out angle, foot plantar pressure which demonstrate temporal-spatial parameter of gait component. Results : The results of this study showed that in comparison of pre and post changes of gait training, SGT group has statistically significant differences in gait velocity, metatarsal area of foot plantar pressure, TGT group has statistically significant differences in gait velocity, toe out angle, midfoot of foot plantar pressure. USGT group has statistically significant differences in gait velocity, step length, toe out angle. Conclusion : These results mean gait training resulted by gait training way provides effective gait, with stroke, and therefore proper response about environmental changes and various tasks could be made.

      • KCI등재

        황사 기간 동안에 어린이, 성인, 노인에서의 자각증상과 예방행동에 대한 조사연구

        이보은,하은희,박혜숙,권지숙,신경림 韓國學校保健學會 2005 韓國學校保健學會誌 Vol.18 No.1

        Purpose: Recently there are scientific evidences for the health effects of Asian dust-storms. Particularly in 2002, the daily average of PM_(10) exceeded 600 and 700 ㎍/㎥ in March and April respectively. We examined the effects of Asian dust-storms on perceived symptoms and preventive behaviors among children, adults, and elders. Method: The subjects of this study were 425 children, 444 adults and 60 elders. A questionnaire survey was carried out on the children and the adults by teachers and on the elders by interviewers to obtain information on demographic variables, perceived symptoms and preventive behaviors, previous respiratory disease, environmental tobacco smoke, and proximity between the house and the road during Asian dust-storms. We analyzed using descriptive statistics, X_(2) test and multiple logistic regression models. After adjustment for potential confounders, we estimated the odds ratios and 95% confidence intervals of the children and the elders for perceived symptoms and preventive behaviors. Result: The elders had a significantly higher prevalence of respiratory symptoms than the other groups. The children had a significantly higher prevalence than the adults in getting URI (1.51), coughing (1.68), rhinorrhea (1.46), fever (2.39) and medication for allergy or asthma (1.90). The children had better behaviors than the elders in closing windows (3.57), taking less outdoor recreational activity (2.59) and staying home (2.60).

      • KCI등재

        主要 眺望點에서 바라본 港灣景觀의 注視特性에 관한 硏究

        김은일,정성구,윤진보,신남수 대한건축학회 2004 대한건축학회논문집 Vol.20 No.7

        It is necessary to research for environmental features of regions rather than each building and scenery to form desirable city landscape that describes placeness concretely. In case of Korea, vast harbors and industry complex are generally located in the waterfront of port cities because the waterfront is noticed as one factor which supplies a fresh ground. So, waterfront forms a wide and long blackout curtain that causes the destruction of nature, shapes a factory structure curtain, and completely covers hinterland landscape. It makes hard for citizens to access to the seaside, depriving capacity of waterfront for water-familiar, and destructing beautiful seashore environment. This research project is to provide those architects or planners with the design guidelines of improving port and hinterland landscape. To do so, this study is carried out the physiological evaluation making eye fixation behaviors. The main results were summarized as follows: 1) Satisfaction with the ports' scenery turned out being given high estimation according as the objections being seen is more natural, a scale of ports' landscape elements is larger, and shape of landscape elements are simpler. 2) Distribution of a visual point is concentrated on facilities that have unique shapes and is under the influence of seashore line, letters carved in buildings and conspicuous colors. In addition, it tends to gather a visual point that facility's movement would be expected. 3) Eye fixation behaviors stops at unique shapes, structural lines of the physical elements and color factors of the objects. And it was judged that human recognized the object through this. 4) Scenery that include large natural element has a flexible movement of view and make general populace see the object for more long time. Therefore, it is necessary to examine the vista point on view-distance with research on improving port's naturality.

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