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가감대보탕(加減大補湯)이 백서(白鼠)의 갑상선기능저하증(甲狀腺機能低下症)에 미치는 영향(影響)
김용성,김철중,Kim, Yong-Seong,Kim, Cheul-Jung 대한한방내과학회 1994 大韓韓方內科學會誌 Vol.15 No.2
To study the effect of Kamidaebotang on the hypothyroidism induced by thiourea in SD(Splague Dawley) rats, the weight of thyroid gland, the level of serum $T_3\;and\;T_4$. total cholesterol, hematological changes and histopathological findings were measured. The following results were obtained. 1. Thyroid gland weight of the Kamidaebotang B treated group was significantly increased as compared with that of control group(p<0.05). 2. The level of serum $T_3$ of the Kamidaebotang B treated group was slightly increased as compared with that of control group. But no significant changes appeared between two groups. 3. The level of serum $T_4$ of the Kamidaebotang A, B treated groups were significantly increased as compared with that of control group(p<0.05). 4. Total cholesterol of the Kamidaebotang A, B treated groups were not significant changes as compared with that of control group. 5. Hematological data of the Kamidaebotang A, B treated groups were not significant changes as compared with that of control group. 6. Histopathologically, Kamidaebotang B administration recovered effectly the dystropy, degeneration of thyroid follicle induced by thiourea. From above results, it is suggested that Kamidaebotang B is available to the hypothyroidism induced by thiourea in rats. Therefore, Kamidabotang B seems to be applicable to hypothyroidism in clinical practice.
김용성,Kim , Yong-Seong 한국농공학회 2004 한국농공학회논문집 Vol.46 No.5
A risk analysis on the cutting slope of roads near Cheongju area was carried out with the data from geological map, field investigation, and laboratory test and with the Geographic Information System. A risk analysis method on the cutting slope of road using the Geographic Information System was developed with the data from geological map, field investigation and laboratory tests. In the GIS, road factors which are safety factor, class of road, slake index, slope-protection works, and height of slope in the cutting slopes are classified into some ranks, and their weighting factors were taken into account. This method can be applied effectively to a road management.
반응성 RF 마그네트론 스퍼터링 법을 이용한 AIN/SiC 구조의 제작 및 특성
김용성,김광호,Kim, Yong-Seong,Kim, Kwang-Ho 한국전기전자재료학회 2005 전기전자재료학회논문지 Vol.18 No.11
Al/AlN/n-type 6H-SiC (0001) MIS structures were prepared by AlN layers on vicinal 6H-SiC(0001) substrates with reactive RF magnetron sputtering method. The AlN films were annealed at $900^{\circ}C$, $N_2$ atmosphere lot 1 minutes showed the best result. With XRD analysis, AlN(0002) peak was clearly found. The typical dielectric constant value of the AlN film in the MIS capacitors was obtained as 8.4 from photo C-V. Also, the gate leakage current density of the MlS capacitor was $10^{-10}\;A/cm^2$ order within the electric field of 1.8 MV/cm. Finally, the amount of interface trap densities, $D_{it}$, was evaluated as $5.3\times10^{10}\;eV^{-1}cm^{-2}$ at (Ec-0.85) eV.
표준간극비를 이용한 콘크리트 표면차수벽형 석괴댐 축조재료의 다짐 관리
김용성,Kim Yong-Seong 한국농공학회 2006 한국농공학회논문집 Vol.48 No.4
In this study, construction modulus, void ratio and settlement characteristics of 38 CFRD in domestic and foreign countries were investigated from monitoring data. The effect of field dry density and void ratio to dam body was analyzed. The standard void ratio of CFRD that can be easily used by dam designers and field engineers was proposed from the monitoring data. It was confirmed that we can get the degree of compaction needed for reasonable compaction of dam body by calculating the field dry density from inverse operation of the standard void ratio. It was thought that the void ratio of CFRD depends on shape coefficient and in case of a high shape coefficient, the void ratio was high with its void ratio 0.17 -0.38.