Salmonella 균 증식에 있어서 Ox-bile 의영향

권오필,고광균,이강순 순천향의학연구소 1995 Journal of Soonchunhyang Medical Science Vol.1 No.1

This study was performed to investigate the effect of bile on the growth of Salmonella spp., and to find out the reason for the seasonal changes of epidemics and the carrier of gallbladder in the infection of Salmonella typhi and the results were follows. 1. Salmonella typhi and Salmonella choleraesuis can remain alive in distilled water for more than 90 days, the other hand Salmonella enteritidis can survive for about 70days. 2. Salmonella spp. can persist for long periods in the stock media contained with 5% ox-bile. 3. This results suggest that the growth of Salmonella was not inhibited with ox-bile in broth and agar plate media. 4. We could not find out any relation between becoming a gallbladder carrier in Salmonella typhi infection and ox-bile. But Salmonella typhi survive longer than Salmonella choleraesuits and Salmonella enteritidis in the distilled water containing 20% oxbile.

무등산 도립공원의 개발에 관한 연구

권준오,신광철,이덕범 조선대학교 국토개발연구소 1994 국토개발연구 Vol.14 No.2

Mt. Mudeung is considered as one of the important tourist attractions to satisfy Kwangju citizens as well as tourists so this study on provincial parks shows following suggestions to help the development of tourist resources and the preparation of recreation space. The conclusions are : First, in developing tourist resources, native and available resources should be considered in relation to local characteristics. And then tourist route, space for receation, and paths up the mountain should be provided, in connection with tourist attractions. Second, the landscape ought to be designed in harmony with surrounding natural forests, so that it can show both its unity and variety coming out of characteristics of the space. Third, after grasping functions and characteristics of Mt. Mudeung, the strategy for development should be made. Fourth, experts are required to take care of cultural resources. Firth, as the silent pattern of tour and recreation have changed into active one, resources to developed. Besides, convenience facilities should be repaired and newly made. Sixth, visitors' purpose and motivation show that Mt. Mudeung, provincial park, is being used as a nearby park. Seventh, it is to destory nature and the scenery that Mt. MuDeung provincial park is exploit the openspace of tourism and leisure. Consequently the development of openspace for social tourism and leisure is enough considered with natural environment and it is well planned to don't destory the ecosystem in order to play the important role of developed space and citizen's park.

飮食物쓰레기의 效率的 管理를 위한 物理的 特性 및 處理

권효정,정영헌,김임경,심언봉,오광중 부산대학교 환경문제연구소 2003 環境硏究報 Vol.21 No.-

This study was conducted to manage food wastes in Korea efficiently. We carried out an experiments on food wastes generated from Yeonjae gu, Pusan as a representative boundary according to the measurement of apparent density, generation quantity, physical characteristics, proximate analysis, and elemental analysis as well as drying and carbonizing, and also tested the hazardous materials in fertilizer and compost from public and private recycling center in operation. The purposes of this study are to investigate current status of food wastes recycling methods and facilities, to examine the fuelization of food wastes, and to suggest the cost effective food wastes treatment plans. Based on the results of the analysis of apparent density and water content in food wastes, it was revealed that the apparent density of food wastes was in inverse proportion to the water content. The water content of food wastes was highly influenced by the fruit and vegetables such as watermelons. These results indicate that the food wastes with about 75 ~80wt% initial moisture content should be reduced under 70wt% moisture content by drying process pier to throwing away. Comparing the heating values of the food wastes which were calculated by Dulong's equation and Steuer's equation it was revealed that Steuer's equation(HHV 5,186 kcal/kg, LHV 880 kcal/kg) was more compatible than Dulong's equation(HHV 4,676 kcal/kg, LHV 330 kcal/kg) because the results of proximate analysis for the food wastes were very similar to those of sewage sludges. Additionally, to reduce water contents of food wastes under 60wt% as acceptable water contents for fuelization, it was also found that blending with 25wt% chars made from food wastes was more efficient than the drying of food wastes itself at 105°C, 45minutes in view of completion time. Furthermore, these chars generated from food wastes (about LHV 6,608 kcal/kg) comparable to commercial charcoal(LHV 7,134 kcal/kg) generated from oak trees and lower ash contents(under 15wt% of chars) than those.

대학병원의 외래진찰실 및 수술실 활용도 조사방법에 대한 연구 : 지방소재 J대학교 사례조사를 중심으로 Case study in J university hospital

오종희,권순정,김광현 대한건축학회 2004 대한건축학회논문집 Vol.20 No.3

The purpose of this study is to develop the survey method for the proper, effective space utilization and to analyze the utilization rate of the outpatient's consulting room and the operating room in the university hopsital. The utilization rate of the outpatient's consulting room could be got by the survey to investigate the outpatient's consulting room session utilization, doctor's behavior, time delay, special medical department's behavior etc. The utilization rate of the operating room could be got by the survey to investigate the every part of the process in the operation, that is operation time, preparation time, cleaning & arrangement time, eating time etc. Finally it was suggested that the department of internal medicine & rehabilitation medicine need to have more consulting room and surgery, othopedic surgery, neurosurgery need to reduce the number of consulting room. About the operating room, it was suggested that if the present utilization of the operating room got down to 90%, at least 3 more operating room would be needed.

가야산 국립공원일대의 식생 및 식물상 연구 : 단지봉 지역을 중심으로 Especially on the Danji-bong Area

박광우,권영한,최경,오승환,김동갑,김주환 한국환경생물학회 2005 환경생물 : 환경생물학회지 Vol.23 No.1

본 조사지역인 가야산국립공원은 지리학적으로는 북위 35?5′00″~35?9′30″, 동경 128?2′30″~128?09′30″에 위치하고, 행적구역상으로는 경상남도의 합천군과 거창군, 경상북도의 성주군, 고령군에 걸쳐 있으며, 총면적은 57.81 km꼬?이른다. 가야산은 우리나라 기후지역상 온대남부에 위치하고, 식물구계학적으로는 남부아구에, 식생구계학상으로는 냉온대에 속하는 것으로 알려져 있다. 또한, 전체면적의 약 82.5%가 해발 600m 이상이며, 1,000m이상이 약 10.3%에 해당된다. 가야산의 해인사-극락골-토신골 지역은 잘 보존된 소나무림이 우점하고 있고, 부분적으로 노각나무가 산생하는 것이 관찰되었으며, 해인사-진대밭골-두리봉 지역은 계곡에는 소나무와 졸참나무가 고지대에는 신갈나무 등이 부분적으로 군락을 형성하고 있었다. 또한 남산제일봉과 북사면은 각각 등산로와 임도가 형성되어 있어 소나무와 졸참나무, 신갈나무 등이 혼재된 양상을 나타내었고, 백운동계곡 주변은 다른 사면과 달리 식생의 발달정도가 소나무와 관목위주로 매우 단순했다. 특기할만한 점은 상왕봉 주변에서 흰참꽃, 설앵초, 네귀쓴풀, 백리향, 솔나리, 구름송이풀 등의 희귀 또는 고산성 식물들이 분포하는 것이 확인되었다. 가야산국립공원지역에 분포하는 양치식물 이상의 관속식물을 대상으로 조사한 결과 91과 268속 373종 1아종 75변종 12품종 4잡종으로 총 465분류군이 조사 확인되었으며, 이는 우리나라 관속식물 4,071 분류군의 11.4%에 해당되었다. 한국특산식물은 11과 15속 15분류군으로 조사지역내 분포하는 465분류군중 약 3.2%이며. 식물구계학적 특정식물은 17과 21속 25분류군으로 이는 가야산 소산식물 465분류군의 5.4%이었고, 조사지역에 분포하는 귀화식물은 5과 7속 7분류군으로 우리 나라전체 귀화식물종 177종류의 4%이다. 또한 가야산 단지봉(1,028.5m)에서 새로 발견된 산간습지 (forested wetland)와 자란초 자생 군락지에 대해 식생 및 층위별 종조성을 토대로 현존 식생 구조를 분석하였다. This study aims to investigate the flora of Mt. Gaya National Park, especially focused on the forested wetland vegetation of Danji-bong area. The flora of Mt. Gaya was investigated from April in 2003 to October in 2004. Vascular plants of this area consist of total 465 taxa, 4 hybrids, 12 forma, 75 varieties, 1 subspecies, 373 species, 268 genera, 91 families. It corresponds to 11.4% of totally 4,071 taxa appeared in Korea. Korean endemic plants were composed 11 families, 15 genera, 14 species, 1 variety and totaling 15 taxa. And also actual vegetation structures were analyzed the newly founded forested wetland and natural population Ajuga spectabilis on the Danji- bong area using the vegetation and the species composition by tree layer.

제7차 수학과 교육과정에 따른 수업모델 개발 : 10-나 단계의 ‘규칙성과 함수’ 영역을 중심으로

김광회,권정순,박수오,김윤배 전주대학교 교육문제연구소 2001 敎育論叢 Vol.16 No.-

HDPE 개질 아스팔트 혼합물의 강도 및 변형특성

김광우,이기호,권오선,고태영 강원대학교 부설 석재복합신소재 제품연구센터 2004 석재연 논문집 Vol.9 No.-

본 연구는 폐비닐 펠렛을 도로포장재료로 재활용하여 자원절약 및 아스팔트 혼합물의 품질향상을 위한 연구이다. 이를 위하여 폐비닐의 첨가량별 배합설계를 수행하여 적정 폐비닐 첨가량과 최적 아스팔트 함량으로 편마암과 화강암 2가지 골재와 폐비닐인 RHDPE의 함량을 4가지로 혼합물을 제작하여 8종류의 재질 혼합물과 2종류의 무개질 혼합물을 제작하였다. 그리고 이 공시체에 대하여 마샬안정도, 간접인장강도 및 Kim test와 반복주행시험 등 실내시험을 통하여 혼합물의 특성을 분석하였다. 폐비닐 첨가량은 RHDPE가 8%일 때 안정도와 간접인장강도 모두 가장 우수한 것으로 나타났고 취성도 나타나지 않았다. RHDPE를 첨가한 혼합물에 대하여 Kim test를 수행한 결과 DR과 DS 모두 높은 상관성을 보였다. 그리고 반복주행시험에서는 RHDPE를 첨가한 혼합물이 일반 혼합물보다 우수하였다. 향후 많은 실험을 통해 RHDPE의 우수성을 입증한다면 소성변형 저항성에 우수한 재료로 이용될 수 있을 것이다. This study is a fundamental research for recycled high-density polyethylene (RHDPE) in asphalt mixture for improving roadway pavement. Marshall mix design was conducted and optimum asphalt content(OAC) was determined for dense-graded surface course mixture by RHDPE content. Marshall stability test, indirect tensile strength (ITS) test, wheel tracking trest and Kim-test were carried out to measure the characteristics of RHDPE-added asphalt concretes. From the results of this study, RHDPE in asphalt mixture if possible. It could be considered that adding too much RHDPE in asphalt mixture is not proper. The optimum content of RHDPE was appeared to be 8%. In Kim-test, statistical analysis was performed for each loading head and aggregate to find out correlation between S_(D) values and each rut parameter. The analysis result showed that S_(D) had very high coefficient of determination with rut parameters on the average.

한복지의 소비성능에 관한 연구

성수광,권오경,황지영 한국의류학회 1991 한국의류학회지 Vol.15 No.2

In this paper, the fabrics for Korean folk clothes(KFC) undergoes repeated laundering under given condition. After this cyclic laundering was applied, the mechanical properties of the specimen were measured using KES-F system in order to evaluated the end-use performance of fabrics for KFC. And also, the crease recovery of fabrics for KFC were measured by shirley crease recovery tester. 78 different kinds of commercial silk fabrics and polyester fabrics for KFC were used for this study. The experimental results were analysed statistically to relate the mechanical properties and the crease recovery of fabrics for KFC. Furthermore, these changes in dimensional stability, mechanical properties and handle of fabrics for KFC were discussed in comparison with those values for silk fabrics and polyester fabrics. The results obtained are as follows. 1. Regardless of materials, remarkable increase are observed in shrinkage of the fabrics for KFC about repeated laundering, but dull increase are observed in shrinkage after 10 cycles of the repeated laundering. On the other hand, slack extend are observed in dimensions after 20 cycles of the repeated laundering. The shrinkage of fabrics for KFC after 10 cycles of the lundering showed that the silk fabrics are 1.74±0.33% (warp direction) and 1.35±0.23% (weft direction) and the polyester fabrics are 1.45±0.22% (warp direction) and 1.25±0.23% (weft direction). 2. Except for tensile property, these changes in mechanical properties of fabrics for KFC by laundering have ±16 range of bending, shearing, compression, surface, thickness & weight as compared with before laundering. Particularly, the LT and RT about 1∼3 cycles of the repeated laundering showed remarkable decrease. And SMD, WC, T & W of fabrics for KFC by the laundering were more increased than one for original fabrics. But B, 2HB, G, 2HG, 2HG5 were decreased more than one for original fabrics. 3. "Stiffness", "Anti-drape", "Crispness" and "Scroop" hand values decrease and"Fullness & softness", "Flexibility & softness" hand values increase with repeated laundering. 4. Remarkable decrease are observed in crease recoveries about 1∼5 cycles of the repeated lundering, but slack decrease are observed in crease recoveries after 5 cycles of repeated laundering. The crease recovery of fabrics for KFC have negative(-) correlation with LT, RT, G, RC and MMD, This fact implies that the smaller these values, the larger the crease recovery. The crease recovery of fabrics for KFC has a high degree of correlation with the mechanical properties such as shearing, compression, surface property. And also, the crease recovery are expected by measuring the mechanical properties such as G, 2HG, 2HG5, RC, WC, LC, MIU, MMD and SMD, according to the obtained regression equation.

정자기장이 MC3T3-E1 세포의 골결절형성에 미치는 영향

김광덕,권오원,류현모 대한치과교정학회 1998 대한치과교정학회지 Vol.28 No.1

정자기장이 MC3T3-E1 세포의 골생성능력에 어떠한 영향을 미치는지 알아보기 위하여 MC3T3-E1 세포를 4well세포배양접시에 SmCo5 영구자석을 이용하여 76.4mT의 정자기장을 가한 상태에서 5일, 7일, 11일, 15일 및 21일간 배양한 후 세포의 ALP 활성도를 측정하고 Alizarin red S 염색을 통하여 골결절양상을 관찰하여 다음과 같은 결과를 얻었다. ·정자기장을 가한 군중 7일군, 11일군 및 15일 군에서 MC3T3-E1 세포의 ALP활성도가 대조군에 비해 낮게 나타났으며(P<0.01) 그중 11일군에서 가장 억제효과가 많았다. ·Alizarin red S 염색을 통한 골결절 양상은 11군까지는 실험군과 대조군 모두에서 염색양상이 나타나지 않았고 15일 군에서 대조군은 소량의 골결절이 염색되었으며 실험군은 골결절 염색이 되지 않았으며 21일 군에서는 실험군과 대조군 모두에서 골결절이 염색되었으나 대조군에서 약간 더 염색된 양상을 나타내었다. To evaluate the effect of a static magnetic field on the bone producing potential of MC3T3-E1 cells, the alkaline phosphatase activity was measured after the cells having been cultured under 76.4mT static magnetic field using a SmCo5 magnets for 5days, 7days, 11days, 15days and 21 days for each cell culture group. Also, the amount of bone nodule stained with Alizarin red S was observed. The results were as follows . The alkaline phosphatase activity of the 7, 11, and 15 days group among the experimental groups was decreased as compared with the control groups, and the decrease of alkaline phosphatase activity in the 11 days group was the most evident among them. . Any stained bone nodules of both groups had not been observed until the 11th day. The stained bone nodules in the control groups were found on the 15th day, but not in the experimental groups. The stained bone nodules were observed in both groups on the 21st day, but the control groups have more bone nodules than the experimental groups.

CORE 편포의 세탁에 따른 열적 특성의 변화

성수광,김연희,권오경 대구효성가톨릭대학교 1992 연구논문집 Vol.45 No.1

This study was carried out to investigate the changes of thermal properties such as warmth retaining and contact warm/cool feeling of a core knitted fabric by repeated washing. Three kinds of knitted fabric such as core, polyester/cotton(P/C), and cotton were repeatedly washed, and then used as specimen. Thermo Labo Ⅱ type was employed to measure the thermal properties of warmth retaining and contact warm/cool feeling. And also, the experimental results were analysed statistically to related the thermal properties and structural properties such as thickness, weight, bulk density, porosity, cover factor, and air permeability. The results are as follows. 1. The warmth retaining and the contact warm/cool feeling were remarkably changed at early washing, and after further washing no changes occured. The change rate of the materials to repeated washing was in the order of cotton>P/C>core knitted fabrics. 2. In case the knitted fabric of the same thickness and of the same weight have been considered, the warmth retaining was in the order of P/C>core cotton knitted fabrics. And also, the contact warm/cool feeling was in reverse order of the warmth retaining. 3. The warmth retaining showed positive correlation with thickness, weight, porosity, and cover factor and negative correlation with bulk density, and air permeability. And also, the contact warm/cool feeling showed an opposite trend to the warmth retaining 4. The warmth retaining and the contact warm/cool feeling were expected by measuring the structural properties such as thickness, weight, bulk density, porosity, cover factor, and air permeability according to the obtained regression equation.