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신일선 忠州大學校 2002 한국교통대학교 논문집 Vol.37 No.2
This paper explores the quantitative relation between the reliability of slope aspect, gradient, and form mapped from a DEM with each grid sizes using GIS. Grid DEMs initially interpolated from contours of digital map were sampled to five other resolution levels. The topographic variables mapped at these grid sizes were compared with each other. It is found that mapped slope aspect and gradient is gradually affected by grid size. By comparison, slope form is more susceptible to grid size in this study
신일선 한국농공학회 1984 한국농공학회논문집 Vol.26 No.3
This study was carried out to find physical and mechanical properties of soil in Yongsan project area to support basic data for tidalland reclamation. The main results are as follows. 1. Most of the soils in this area consist of clay and silt, and inorganic materials. 2. Natural moisture contents are ranged from 42.2% to 92.9% initial void ratio, from 1.4 to 2.3 Therefore it takes a longtime in Settlement of considerable depth. 3. Wet unit weights decrease with increasing of the nataral moistare contents as rt=2. 005-0. 0065wn.4. The relationships between compression index. and liquid limit, initial void ratio and natural moisture contents are found as follows respectively. Cc =0. 046+0. O12LL Cc=-0. 068+0.367eo Cc =0. 056+0. OO8Wn 5. Natural moisture content, plastic limit, plastic index, initial void ratio and liquid :limit are directly proportional to clay content ratio. The relationships are found as Wn=26. 083+0. 797Cy PL=14. 223+0. 128Cy P1=0. 457+0. 492Cy eo=0. 757+0. O2Ocy LL=14. 695+0. 620Cy. 6. Initial void ratio and liquid limit are directly proportional to natural moisture con-tent as follows. eo=0. 310+0.022wn LL=6. 275+0.592wn
辛逸善 충주대학교 1977 한국교통대학교 논문집 Vol.10 No.1
The quality of concrete differs according to the technique of construction and the aggregate using when concreting and the rate of mixing, too. In case of construction of concrete, aggregate forms 70-80 percent of the volume of concrete, and according to various qualities of aggregate has a great influence upon the strength of concrete and the persistence etc. and upon the cost of construction. In this paper I examined various conditions with the mixing of the economical concrete and the differences. from aggregates. Especially I attached importance to the aggregate of the Chung-Ju district.
격자 DEM과 TEN자료를 이용한 경사도 비교분석에 관한 연구
辛逸善 충주대학교 1997 한국교통대학교 논문집 Vol.32 No.2
The appearance of Geographic Information System made a management of spatial information more dasily. Recently, it is possible to model accurately physical process about complex the land surface environment. The slope analysis for a hydrology analysis in basin is an improtant parameter. Generally, a slope analysis using GIS can be applied with grid structure DEM and TIN. In study, we input a contour line ever 20 meters in a map of scale 1: 50000 and analyze the slope with grid structure DEM and TIN. AS a result of the slope analysis using two data structures, it is descibed that the maximum of grid DEM is 60.60˚and TIN is 89.92˚,while the minimum slope is 0˚. Also,the mean slope is described to the same one.
Charles Bonnet 증후군에서 유발된 환시의 Quetiapine 치료 증례
신일선,김재민,김성완,양수진,신희영,신재웅,윤진상 대한정신약물학회 2009 대한정신약물학회지 Vol.20 No.6
The case of a 77-year-old man with Charles Bonnet syndrome was presented. This patient lost his vision due to glaucoma, and he subsequently developed complex visual hallucinations. No other psychotic symptoms (e.g., delusions, perceptual disturbances) and no evidence of cognitive impairment or neurological diseases were reported. The visual hallucinations disappeared after treatment with quetiapine, an atypical antipsychotic, without any side effects. The visual hallucinations reappeared after quetiapine was discontinued. Treatment with a small dose of quetiapine has been maintained to prevent the exacerbation of symptoms. 저자들은 Charles Bonnet 증후군으로 추정되는 환자에서 발생된 환시에 대한 quetiapine 치료 1예를 경험하였다. 환자는 양측 눈을 녹내장으로 실명한 후 복합성 환시를 보였다. 환자는 환시 외의 지각장애나 망상 등의 정신과적 증상은 없었고, 두드러진 인지기능장애나 신경학적 이상은 발견되지 않았다. 비전형 항정신병약물인 quetiapine을 도입하여 약물의 부작용 없이 환시가 소실되었다. quetiapine을 중단하면 환시가 재발되어 증상 조절을 위해 소량의 quetiapine을 유지하고 있다. 지금까지 CBS 환시의 약물치료는 항정신병약물 외에 다양한 약물들의 효과가 보고되었지만 모두 증례보고 수준이어서 향후 체계적인 연구가 필요하겠다.