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李炳坤 慶北大學校 1984 論文集 Vol.37 No.-
The purpose of this study is to clarify some climatological aspects of winds in Korea using the wind statistics. The results are as follows: 1. The annual march of the wind velocity was presented using the mean value of every half decades. Types of the annual march are grouped into six: (1) Yellow sea side type (2) Korean strait side type (3) Donghae sea side type (4) Inland type (5) Highland type (6) Island type 2. In the number of days with wind velocity by class (1) Island, Yellow sea side, and Korean strait side type have high value in the occurrence freguency of days with daily maximum wind velocity of more than 10m/s, but Donghae sea side and Inland type show the low value. This fact means that it reflect well the effects of the direction of air flow into the Korea and topograpical features. (2) The scale of wind velocity corresponding to each number of days has some trends with the regional distribution of the occurrence frequency of daily maximum wind velocity of more than 10m/s. 3. The annual march of the daily variation in wind velocity could be classified into three types. (1) Ⅰ type: annual variation is more pronounced than daily variation. (2) Ⅱ type: daily variation is more pronounced than annual variation. (3) Ⅲ type: both daily and annual variation is pronounced. 4. In distributional characteristics of the monthly mean wind vector (1) The monthly mean value rotate, as a whole, conunterclockwise direction through the whole year. (2) In the case of east-west components of the monthly mean wind vector, Yellow seside, Korean strait side and Inland show the high value of west wind components, while Donghe sea side shows the high value of east wind components. (3) Especially it is noted that the components of north-west wind and south-east wind are extremely weak.
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李炳坤,文永守 慶北大學校 1985 論文集 Vol.39 No.-
According to the series of several recent studies, it has been clear that the urban climate in Korea has its own characteristics due to the industrial development and population growth since 1960's. By analyzing the secular variation of climatic elements of the four cities chosen in this study and comparing these with those of rural areas near the cities, it is attempted to clarify quantitatively the characteristics of the urban climate. The results are summarized as follows: (1) The annual mean temperature shows an increasing tendency in urban area. While it decreases in august, it increases in January. (2) The amount of annual precipitation in urban area seems to decrease. However, there is much more precipitation in cities than in rural area in August. (3) The relative humidity in urban area is slightly decreasing. The urban area is less humid than rural area, particularly in August. (4) The number of fog days shows no noticeable change in the secular variation of urban area. However, they are noticeably fewer in urban area than in rural area, particularly in August. (5) The mean wind velocity shows no conspicuous change in urban area. However, it is stronger than that of rural area in August. (6) In urban area there is a tendency that the annual mean percentage of sunshine has decreased for ten years since 1965, and it has increased again after that. However, it is worth noting that the percentage in August in urban area has decrease steadily since 1965. Furthermore it is lower than that in rural area, particularly in August.
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地形測量과 Contour 設定에 關한 硏究 : 慶北大學校 敷地測量의 例 An example at the KNU site surverying
李炳坤,金又寬 慶北大學校 1968 論文集 Vol.12 No.-
In the synthetic research of area, scientific correctness of maps is highly required. In the establishment of land development planning, especially in the grasp of a vast area scale, it is Possible to perform by using the various topographic maps Published already, but it is difficult to plan the land use and to understand the geographical features without Micro-topo graphical maps. The purpose of this research is in making a Micro-topographic map established one contour line at five meters intervals, for the KNU site is small in tis area scale and so hilly in its ladform. We can make the map in a shortest time by using Air Photo, but it is not used for small area scale due to the defects of falling into errors without the advanced countries usually using it because of the time saving. While the plane table surveying can be advantageously used in small area scale than in vast one in respect that we can directly approach the land. Taking account of this point, the result gained by the plane table surveying and the level surveying in KNU site are as follows; 1. Established a sea level point 43.595 meters of this KNU site at rotary. 2. Discovered many errors committed by photo surveying (Aerial Surveying) in topographic map published already. 3. The highest spot is 60 meters and lowest spot 30 meters in this KNU site, in consequence, the local relief is 34 meters. 4. The level of road and of building base floor coincides with the network of the topographic survey forming the backbone of land surface, due to its hilly topography. 5. For making the scientific photo map, it must be supplemented with the Precise plan table surveying. In the respect of above, fostering an able engineer is urgent and if we take the fortes of the photo surveying and the plane table surveying, we can cultivate a new phase to make the descrable maps, and they will be much wore available to perform the land use planning and land development as a base map.
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李炳坤 경북대학교 문리과대학 지리학회 1977 洛東地理 Vol.- No.2-3
본 연구는 도시기후의 의의와 특성 및 그의 영향의 파악과 우리나라 주요도시의 도시기후현상을 기후요소별로 구명하였다. 본 연구의 결과를 요약하면 다음과 같다. 1) 소기후 및 도시기후 연구에는 자료 및 노력 경비 등 애로점이 많다. 2) 도시기후에 대한 요소별 분포실태 및 원인규명 등에 있어서는 많은 연구의 여지가 있으며 우리나라는 이 분야의 연구가 거의 없는 상태이다. 3) 도시기후의 특성은 자체의 특성으로서 그치는 것이 아니라 타 도시특성과 결함 상승하여 인간 및 인간생활에 크게 영향을 미친다. 따라서 도시기후는 명백하고 건전한 도시건설을 위해서도 앞으로 상세한 연구가 있어야 할 것이다. 4) 기온은 연평균 최고기온과 하계 평균기온은 아무런 경향성이 보이지 않으니 연평균기온은 약간의 그리고 연평균최저기온과 동계 평균기온은 현저한 상승경향을 찾아볼 수 있다. 5) 바람의 연평균풍속은 별 경향성은 없으나 최대풍속의 평균은 감소의 경향을 보인다. 6) 온도는 연평균 및 계절평균 등 모두 전혀 경년변화의 경향성이 보이지 않을뿐더러 최근은 오히려 증가의 이단현상을 나타내고 있다.
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이병곤,김태영,김종문 대한신경외과학회 1996 Journal of Korean neurosurgical society Vol.25 No.1
A case of a mature, cystic teratoma in posterior cranial fossa presenting as a hyperdense lesion on precontrast computed tomography(CT) is reported. Although typical cysts of epidermoid, dermoid and teratoma appear on CT scans as areas of decreased attenuation, the cyst of this case showed increased density on precontrast CT scan. The underlying cause for this CT appearance is discussed after literature related to teratomas that are located in the midline posterior fossa are reviewed.
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