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채영진,남호현,이석모,여성원,한성규,이재원,안민식,정헌영,금경수 한국전통의학연구소 2003 한국전통의학지 Vol.13 No.1
The six kinds of natural factors(It refers to wind, cold, summer-heat, dampness, dryness and fire.) is constantly moving to maintain the balance of whole climate of one year. Four seasons are the largest mediation of whole climate of one year. The cold and the heat have the relationship of mutual intervention. The dampness and the dryness have it also. In this process they raise various climate appearance. And that various climate appearance influence the whole lives on the earth. This paper is concerned with the classification of them.
이주용,조준,박호권,장상근,문창택,한혜승,이경룡 건국대학교 의과학연구소 2004 건국의과학학술지 Vol.14 No.-
The authors in this manuscript aimed to provide a practical importance of the differential diagnosis of intracranial brain tumor with emphasis on non-neoplastic abnormalities such as cytotoxic edema of the penumbra zone in strokes. The well known SOLs are cerebral ischemic, inflammatory and dysplastic lesions, which intraaxially imitate glioma and other neurogenic tumors. Brain tumor is the one of common intracranial space-occupying lesions (SOLs) on the diagnostic images. However, many non-neoplastic lesions may be indistinguishable from tumors. Especially, early mortality used to be caused by space-occupying hyperacute ischemic stroke, brain edema and herniations. For the retrospective analysis, the authors reviewed the patient charts, the emergency brain Computerized Tomography (CT), magnetic resonance imaging (MRI), clinical stroke history. From Jan. 2003 to Dec. 2003, we managed total 61 acute strokes in ICU. Even though we operated six decompressive craniotomies, nine stereotactic craniotomies including two procedures of brain biopsy and three extraventricular drainage procedures, three patients (4.91%) were finally expired out from the induced herniation and medullary failure by those aggressive strokes. 43 patients (70.5%) were recovered good from stroke attack. 15 patients (24.6%) were improved with residual neurologic deficits. In conclusion, aside from growing efforts of the radiologist to make the early diagnostic impression, the authors suggest that urgent neurosurgical explorations with the pathologic diagnostic decision should be requested to decrease the fatality.
사각단면 강기둥 모서리 곡률의 국부좌굴 강도에 대한 영향평가
한금호(Han Keum Ho),김기언(Kim Ki Un),김종헌(Kim Jong Heon),강영종(Kang Young Jong) 한국철도학회 2004 한국철도학회 학술발표대회논문집 Vol.- No.-
Generally, the buckling of thin-walled structures has studied for rectangular sections or circular sections. Rectangular sections have small stiffness and circular sections have large stiffness when they are compared with rectangular sections for local buckling. But both of them have similar stiffness to column buckling. Therefore in this paper, we are going to analyze the local buckling for the box section with rounded corner and compare with rectangular section. Also we confirm that the rounded corner section has larger local buckling strength than rectangular section.
琴東赫,韓宗昊 成均館大學校 科學技術硏究所 1986 論文集 Vol.37 No.1
This study was performed to develop a simulation model for rice circulating dryer and to analyze the effect of the performance factors on the energy consumption, drying rate and crack ratio by using the developed model. The results obtained are summarized as follows. 1. Simulation model for rice circulating dryer was developed and validated by comparison with experimental results. The developed model was found suitable for predicting grain moisture content during drying process. 2. Drying rate was increased by increasing the layer thickness(0.1∼0.5m). Fuel energy was decreased and electric energy was increased as the layer thickness increased. Therefore, the total energy can be reduced by increasing the layer thickness. 3. Drying rate was increased with the increased grain flow rate. The fuel energy and the electric energy were decreased with the increased grain flow rate. Therefore, the energy consumption can be reduced by decreasing the grain flow rate(5㎥/hr) used in the current continuous flow rice dryer. 4. Energy consumption was increased rapidly with the increased airflow rate, but its effect on the drying rate was much less. 5. The effect of the drying air temperature on the energy consumption varied with the ambient air conditions. If rough rice was dried at nighttime of late in September and early in October, the total energy consumption was decreased by increasing the drying air temperature. But in the daytime, the total energy consumption was jncreased by increasing the drying air temperature up to 40℃. 6. When maximum drying rate regarded as 1.5% w. b. /hr, considering rough rice damage, drying air temperature could be increased up to 60℃. Drying process carried at this temperature was the best operating condition in view of energy consumption. 7. About 15% of drying energy consumption could be reduced operating in the daytime rather than in the nighttime in case of the ambient air conditions at Suwon region.