적외선 분광법에 의한 양이온 교환된 Faujasite 의 T - O 결합특성

김명철,이시훈,김종택 한국화학공학회 1989 Korean Chemical Engineering Research(HWAHAK KONGHA Vol.27 No.5

양이온 교환된 faujasite에 대하여 적외선 분광법, X선 회절분석 및 X선 형광분석법을 이용하여 연구하였다. 적외선 흡수띠의 이동이나 Si/Al비 및 결정성의 정도를 고찰하였다. 양이온 교환된 faujasite에 대한 적외선 흡수띠를 분해하먼 T-O(T : Al 또는 Si)의 진동파수가 940-1051㎝^(-1)(띠 A), 1000-1100㎝^(-1)(띠 B), 1097-1190㎝^(-1)(띠 C), 680-730㎝^(-1)(띠 D), 748-780㎝^(-1)(띠 E) 영역에서 나타났다. 띠 A와 E는 각각 Al-O의 비대칭 신축진동(υ_1) 및 대칭 신축진동(υ_2)에 의한 것으로 볼 수 있다. 띠 C와 D는 Si-O의 비대칭 신측진동(υ_3)과 대칭 신축진동(υ_2)에 의한 것으로 각각 보여진다. 띠 B는 Si-O의 비대칭 신축진동(υ_1)과 Al-O의 비대칭 신축진동(υ_3)의 띠가 겹쳐져서 나타난 것으로 볼 수 있다. The cation-exchanged faujasite were characterized and studied by infrared spectrometer, X-ray fluorescence spectrometer and X-ray diffractometer. The shift of i.r. absorption band, Si/Al ratio and degree of crystallinity were studied respectively. The deconvoluted bands of spectra for the cation-exchanged faujasite corresponding T-O vibration frequency appeared at 940-1050 ㎝^(-1) (band A), 1000-1100 ㎝^-1 (band B), 1097-1190 ㎝^-1 (band C), 680-730 ㎝^-1 (band D), and 748-780 ㎝^-1 (band E). The bands A and E were assigned to the asymmetric stretching(υ_1) and symmetric stretching (υ_2) of Al-O respectively. The bands C and D were assigned to the asymmetric stretching (υ_3) and symmetric stretching (υ_2) of Si-O respectively. The band B was assigned to the overlapping of asymmetric stretching (υ_1) of Si-O and asymmetric stretching (υ_3) of Al-O.

들메나무 成長量의 幼老相關에 關한 硏究

金是璟,安鉉哲 진주산업대학교 1976 論文集 Vol.14 No.-

表1과 같은 環境에서 正常生長을 하고 있는 試料로서 樹幹析解를 하여 各種成長因子에 對하여 年次相關의 係數를 計算分析하여 初期成長量과 成熟期成長量과의 統計學的인 相關으로서 成熟期의 成長量을 推定할 수 있는 가장 어린 時期의 年令을 推定코자 本硏究를 實施한바 이를 要約하면 다음과 같다. 1. 들메나무에 있어서 直徑, 樹高 및 材積의 年次別相關係數의 變動을 分析한 結果 直徑은 樹高보다 더 높은 相關을 보였으며 材積은 가장 높은 相關을 보였다. 2. 5年을 基準으로 하여 이들 三形質에 關한 年次別相關을 分析한 結果 모두 0.9以上의 높은 相關의 信賴性을 相關 지을 수 있는 相關이 維持되는 것으로 보아 5年生정도로서 成熟期의 成長量으로 推定할 수 있다고 생각된다. Juvenile-mature correlation denotes in general sense the interdependence between qualitative or quantitative data collected at different intervals during the life cycle. The correlation can also be obtained through the stem analysis if there is the possibility of cutting sample trees needed amount. In the present study, the juvenile-mature correlation coefficients are calculated from the stem analysis data in the circumstance as table. 1. The results were as follows. I. In Fraxinus mandshurica Rups., the values of corre1ation coefficient between the successive age groups of height growth are lower in general than those values pertaiuing to diametar growth. and the correlatiou coefficients are presented higest in volumne growth, 2. The every possible values of correlation coefficient between the 5-year age groups as to diameter, height, and volume growth of Fraxinus mandshurica Rups. are over 0.9 and therefore at least 5 years growth character also will be deduced the mature-growth.

국민연금기금의 복지관광사업 투자평가를 위한 비용·편익분석 모형에 관한 연구

김시중,오흥철 우송대학교 1997 우송대학교 논문집 Vol.2 No.-

The objective of this study was to help decision-makers to be able to make a decision on a social tourism investment, based on the reasonable estimate standard. This was possible by introducing the estimate method for the effectiveness of investment on social tourism project and by using this method on the analysis of the alternative investment projects. For the analysis and estimate of welfare tourism investment, the advanced cost-benefit model was developed, based on the previous traditional cost-benefit analysis. This new cost-benefit model supplemented the weakness fo traditional cost-benefit model by utilizing the concept of total-social-benefit and total-social-cost.

진세노사이드 Rd와 사포닌 대사물인 compound K의 항지질과산화 효과

김경현,성금수,문연자,박시준,신미란,장재철 한국전통의학연구소 2006 한국전통의학지 Vol.15 No.1

To study on antioxidant effects in the liver of 40-week-old mouse, the sample were orally pretreated 5mg/kg/day for 5 days with red ginseng saponin components(total saponin, protopanaxadiol saponin, protopanaxatriol saponin, ginsenoside-Rd, ginsenoside-Re, compound-K) for 5 days. The ability of saponin to protect the mouse liver from oxidative damage was examined by determining the activity of superoxide dismutase(SOD), glutathione peroxidase(GPx) and the contents of glutathione, the level of malondialdehyde. The only protopanaxadiol among the ginseng saponin fractions was significantly increased the hepatic SOD activity(p<0.01). The red ginseng saponin induced a slight increase of GPx activity, especially ginsenoside Rd, compound K and protopanaxatriol treatments significantly increased its activity. The content of glutathione was significantly increased by total saponin, protopanaxadiol and ginsenoside Rd(p<0.01), but the oxidized glutathione level was lowered in all the red ginseng saponin. Finally, the level of malondialdehyde was significantly decreased by ginsenoside Rd and protopanaxadiol. In conclusion, protopanaxadiol and ginsenoside Rd among the saponin fraction were especially increased in the activity of hepatic antioxidative enzyme and decreased the lipid peroxidation that was expressed in term of MDA formation. This comprehensive antioxidant effects of red ginseng saponin seems to be by a certain action of saponin other than a direct antioxidant action.

승모판 대치술후에 발생한 좌심실유출로 폐색 1예

김도연,조홍근,정익모,박시훈,박성훈,신길자,정병철 대한순환기학회 1998 Korean Circulation Journal Vol.28 No.1

고소 기저동맥 첨단부 뇌동맥류의 협골 접근법 : 증례 보고 Case Report

김철진,배시현 대한신경외과학회 1992 Journal of Korean neurosurgical society Vol.21 No.7

The surgical approach to high placed basilar tip aneurysm presents a special technical problem. The author experienced the case of a 70-year-old female who developed subarachnoid hemorrhage due to rupture of superposteriorly projecting and high placed basilar tip aneurysm. For the purpose of minimal brain retraction and excellent exposure, the author used a technique which was a combination of the detachment of the zygomatic arch and pterional approach. This aneurysm was clipped successfully and easily with the zygomatic approach, but under the anesthesia there was a severe subcutaneous emphysema and pneumothorax which was produced through a tracheostomy site.

Koebner 현상이 동반된 전신성 광택태선 1예

김기준,김시용,김영조,최규철,정병수 조선대학교 부설 의학연구소 1999 The Medical Journal of Chosun University Vol.24 No.1

Lichen nitidus is a rare chronic dermatitis of unknown etiology. It is characterized by round, flat-topped, flesh-colored papules 2 to 3 mm in diameter that may occur in groups but do not coalesce. The lesions of lichen nitidus are usually localized to the upper extremities, genitalia, chest, and abdomen, but less commonly, they may be generalized. Although the eruption is usually asymptomatic, it is sometimes mild pruritic, and the Koebner phenomenon may be observed very exceptionally. We reported a case of generalized lichen nitidus with Koebner phenomenon.

리기다소나무의 높이別 年輪幅에 나타나는 生長의 패턴에 關한 硏究

金是璟,安鉉哲 진주산업대학교 1979 論文集 Vol.17 No.-

本硏究는 리기다소나무를 資料로하여 林木의 높이別 年輪幅의 生長패턴을 해석하고 또한 植栽密度가 年輪生長에 어떤 影響을 미쳤는가를 調査한 것이다. 그 結果를 要約하면 다음과 같다. 1. 斜面方向系列의 年輪幅生長패턴은 樹幹內에 存在하는 營養勾配와 密接한 關係가 있는 것으로 調査되었다. 2. 垂直方向의 系列은 年輪幅의 變化가 아주 不規則한 것으로보아 外部境境 要因에 依한 生長의 變化가 反映된 것으로 생각되며 固有한 生長패턴이 없는 것 같다. 그러나 年輪幅增減추세를 보아 植栽密度別로 樹冠競合의 差가 3年程度가 있는 것으로 調査되었다. 3. 水平方向의 系列은 斜面方向 및 垂直方向 系列의 性質을 同時에 가지고 있고, 特히 根株部와 胸高位置의 年輪幅增減 추세를 볼 때 植栽密度別 樹冠競合의 差가 역시 3年程度 있는 것으로 調査되었다. 4. 垂直方向 및 水平方向系列의 年輪幅增減추세를 보아 密植地는 8年生때 普通植栽地는 11年生때 間伐로서 울폐도 調節이 要求되었다. These studies were carried out to know the growth patterns appearing in annual ring width at different heights and the influence of planting density on growth in annual ring of Pinus rigida Mill. The results are summarized as follows: ① The coefficient correlations between the growth patterns appearing in annual ring width of oblique sequence and the nutrition slope in stem showed to be high significant by stand. ② The vertical sequence did not have a peculiar growth pattern owing to be irregular in the variation of annualring width, and it should be affect on the variation of growth by emironment factors, but 9 conclude that the difference of the crown conflict of different planting density was recognized to be the period of 3 years by the tendency of the increase and decrease in annual ring width. ③ Horizontal seguence contained both its quality of oblique sequence and vertical sequence, and also the difference of the crown conflict of different planting density was recognized to be the period of 3 years, as it was shown the tendency of the increase and decrease in annual ring width of the part of stump and the position of breast height. ④ The proper thinning time was showed to be the period of 8 years in case of closely spaced plantation by the tendency of the increase and decrease in annual ring width of vertical sequence and horizontal sequence, and then we should be control the crown density.

어깨 근막통 증후군에서 어깨 관절운동범위에 대한 분석

김정수,김인아,이수진,김용규,박시복,고재우,송재철 大韓産業醫學會 2005 대한직업환경의학회지 Vol.17 No.4

Objective: This study was carried out to investigate if the measurement of range of motion(ROM) could be applied in the diagnosis of Myofascial Pain Syndrome(MPS) and to determine the severity by analyzing ROM in MPS patients. Methods: The study subjects were 476 female telephone number information service workers. Southampton Protocol and Pittsburgh Protocol were used to diagnose MPS and to measure ROM. ROMs were measured by 2 inclinometers exercising each shoulder passively and actively in 5 directions ; abduction, forward flexion, extension, external rotation, and internal rotation. Results: Compared to the normal group (n=147), the mean of right side ROM in the subjects (n=270) with same side MPS was 2.1˚ (SD=11.5) lesser in active extension and 1.7˚ (SD=10.4) lesser in passive extension. Compared to the mild group (n=210), the mean of right side ROM in the patients with same side severe MPS (N=58) was lesser in all directions. Especially in active forward flexion, passive forward flexion, active extension, passive extension and active external rotation, ROM in the subjects with severe MPS was lesser by 6.5˚ (SD=13.1), 5.1˚ (SD=12.8), 5.9˚ (SD=11.8), 5.0˚ (SD=10.6) and 3.9˚ (SD=9.8), respectively, than those of the subjects with mild MPS. Compared to the subjects with left side mild MPS(n=172), ROM in the subjects with left side severe MPS (n=59) was 5.3˚ (SD=13.3) lesser in active forward flexion. Conclusions: In this study, ROMs in the subjects with severe MPS tended to be lesser than those in mild patients. This tendency was more prominent in the right side than the left, active range of motion than passive and forward flexion and extension than others. The results of this study are expected to help diagnose shoulder MPS and determine severity.

내경동맥의 후하방동맥류 수술시 Ring Clip의 이용 : Report of Five Cases

배시현,김철진,이정청 대한신경외과학회 1993 Journal of Korean neurosurgical society Vol.22 No.12

The development of more appropriate shapes of aneurysm clips will hopefully enable excellent clipping of most types of difficult aneurysms. The clipping of internal carotid artery(ICA) aneurysms protruding inferiorly is relatively difficult and has the high risk of premature rupture during operation using conventional clips. We report five cases of ICA aneurysms protruding inferiorly in the operative field. All aneurysms were successfully clipped with ring clips without difficulty. Our results suggest that the ring clips rather than conventional clips were appropriate in the ICA aneurysm protruding inferiorly in the operative field.