http://chineseinput.net/에서 pinyin(병음)방식으로 중국어를 변환할 수 있습니다.
변환된 중국어를 복사하여 사용하시면 됩니다.
통계적 분석 방법을 이용한 국가지하수수질측정망의 오염 등급 정량화 및 평가
윤희성,배광옥,이강근,Yoon, Hee-Sung,Bae, Gwang-Ok,Lee, Kang-Kun 한국지하수토양환경학회 2012 지하수토양환경 Vol.17 No.1
This study suggests a method to grade groundwater quality quantitatively using statistical approaches for evaluating the quality of groundwater in wells included in the Groundwater Quality Monitoring Network (GQMN). The proposed analysis method is applied to GQMN data from 2001 to 2008 for nitrate nitrogen, chloride, trichloroethylene, potential of hydrogen (pH), and electrical conductivity. The analysis results are obtained as groundwater quality grades of the groundwater representing each of the monitoring stations. The degree of groundwater contamination is analysed for water quality parameters, district, and usage. The results show that the degree of groundwater contamination is relatively high by nitrate nitrogen, bacteria and electrical conductivity and at Seoul, Incheon, Gwangju, Gyeonggido and Jeollado. The degree of contamination by nitrate nitrogen and trichloroethylene is especially high when the groundwater is used for agricultural and industrial water, respectively. It is evaluated that potable groudnwater in GQMN is significantly vulnerable to nitrate nitrogen and bacteria contamination.
백서(白鼠)에 유도된 알러지성 피부염에 대한 초감탕(椒甘湯)의 효과
윤희성,박외숙,김희정,김규석,김윤범,Yoon, Hui-Sung,Park, Owe-Suk,Kim, Hee-Jeong,Kim, Keoo-Seok,Kim, Yoon-Bum 대한한방안이비인후피부과학회 2005 한방안이비인후피부과학회지 Vol.18 No.3
Background and Objectives: Allergic contact dermatitis is a common environmental health issue and seriously affect the patient's quality of life. The more our environment industrialized, the number of material that could cause the allergic contact dermatitis has been increased, consequently the prevalence of allergic contact dermatitis has been increased. In oriental medicine, clinically Chogam-Tang has been used fur the treatment of allergic dermatitis, eczema, atopic dermatitis etc. The objective of this study is to investigate the effects of Chogam-Tang on allergic contact dermatitis Meterial and Methods: Fifteen Sprague-Dawley rats were divided into three groups: normal, control, experimental group. Control and experimental group were induced allergic contact dermatitis, by DNCB. Experimental group was orally administered the Chogam-Tang. Each group was observed after 24, 48 and 72 hours. Contact hypersensitivity assay, melanin-erythema measurement, pH measurement skin moisture measurement and biopsy were performed. Results: 1. In contact hypersensitivity assay, experimental group showed decreased ear swelling compared with control group at 48hours. 2. ln melanin measurement there was no difference in three groups. 3. In erythema measurement experimental group showed reduction at 48. 72 hours. 4. In pH measurement, experimental group and control group showed increase in pH but there was no statistical significance. 5. In skin moisture measurement, experimental group showed higher skin moisture level than control group at 24 hours and showed lower skin moisture level at 72 hours, but there was no statistical significance. 6. In biopsy, experimental group showed decrement of Iymphocyte as time goes by, and regeneration of keratin layer was increased compared with normal group. Conclusions: Chogam-Tang shows anti-inflammatory effect in biopsy, improves hydration levels of skin, decreases erythema level on allergic contact dermatitis.
A Service System Design to Support Medical Tourism in South Korea
윤희성,조성욱,비쟈얀 수구마란,Yoon, Hee Sung,Cho, Sung Woock,Sugumaran, Vijayan 한국경영정보학회 2013 Information systems review Vol.15 No.2
인간의 수명연장에 따라 의료비는 꾸준히 상승하고 있고 이에 따라 의료관광시장도 급 성정하고 있다. 한국은 우수한 의료진과 의료인프라를 기반으로 하여 세계의료관광시장에서 두각을 나타내고 있으며 정부에서도 전략성장산업으로 육성, 지원하고 있다. 의료관광산업의 성패는 '의료정보'와 '관광정보'의 접근용이성에 크게 영향을 받을 수밖에 없다. 건강보험공단 등이 많은 의료관련정보를 보유하고 있고 관광관련기관에서도 많은 관광관련정보를 보유하고 있지만 이들 정보가 의료관광객에게 효과적으로 제공되지는 못하고 있는 실정이다. 여기서는 의료관광에 있어 환자와 정보가 의료분야와 관광 분야에서 전달되는지 에 대한 명확한 도표와 서비스 수요자와 공급자의 필요에 대한 것들을 설명하고 있다. 본 논문에서는 의료관광의 소비자와 공급자간에 원활한 정보소통과 효과적 서비스전달을 위한 의료관광 서비스시스템 디자인을 제안하고자 한다. Healthcare costs are continuously increasing due to longer life expectancy and providing global healthcare services through medical tourism is new service growth engine for Korea. Several countries have well established programs and infrastructure dedicated to medical tourism. South Korea is attempting to become a major player in this domain by undertaking broad initiatives. The success of medical tourism is greatly impacted by easy access to two types of information, namely, medical and travel information. The National Health Insurance System in Korea collects huge amount of clinical and financial information from all hospitals. However, this information does not get used effectively in health and travel information systems to support medical tourism. This paper provide clear process map of medical tourism to understand how the patient and information process both medical and tourism fields also describe the need of customer and service provider. In this paper, we develop a medical tourism service system that will promote information exchange and service delivery.
윤희성(Hee-Sung Yoon),오율권(Yool-Kwon Oh) 한국생산제조학회 2011 한국생산제조학회지 Vol.20 No.5
This study was numerically investigated on thermal deformation of AC4C and AC7A aluminum alloy casting material for manufacturing the automobile tire mold. The metal casting device was used in order to manufacture the mold product of automobile tire at the actual industrial field. The temperature distribution and the cooling time of these materials were numerically calculated by finite element analysis. Thermal deformation with stress distribution was also calculated form the temperature distribution results. The thermal deformation was closely related to the temperature difference between the surface and inside of the casting. As shown by numerical analysis result, the thermal deformation of AC7A casting material became higher than AC4C casting material. In addition, the results of displacement and stress distributions appeared to be larger at the center parts of casting than on its sides because of the shrinkage caused by the cooling speed difference.
윤희성(Hee-Sung Yoon),오율권(Yool-Kwon Oh) 한국생산제조학회 2011 한국생산제조시스템학회 학술발표대회 논문집 Vol.2011 No.4
This study was numerically investigated on thermal deformation of AC4C and AC7A aluminum alloy casting material for manufacturing the automobile tire mold. The AC4C and AC7A casting material which used one of the aluminum alloy was selected as a casting material and the metal casting device was used in order to manufacture the mold product of automobile tire in the actual industrial field. The temperature distribution and the cooling time of these materials were numerically calculated by finite element analysis(FEA). Also, thermal deformation such as displacement and stress distribution was calculated form the temperature distribution results. The thermal deformation was closely related to the temperature difference between the surface and inside of the casting. The numerical analysis result occurred that the thermal deformation of AC7A casting material was higher than AC4C casting material. In addition, the results of displacement and stress distributions appeared to be larger at the center parts of casting than on its sides because of the shrinkage caused by the cooling speed difference.
윤희성(Hee Sung Yoon),황인성(In Sung Hwang),고창섭(Chang Seop Koh),김동수(Dong Soo Kim),윤소남(So Nam Yun) 대한전기학회 2006 대한전기학회 학술대회 논문집 Vol.2006 No.7
DC솔레노이드 밸브의 성능을 나타내기 위해 여러 가지 중요한 파라메터들이 존재한다. 최소 혹은 최대 스트로크 시의 흡입력, 온도상승, 소비전력 그리고 동작시간 등이 있다. 본 논문에서는 동작시간을 최소화시키기 위해 반응표면법을 이용하여 DC솔레노이드 밸브의 형상 최적화를 수행하였고 그 결과를 유한요소법을 이용하여 검증한다.
스마트카드 자료를 이용한 서울시 시내버스 단일노선 회복탄력성 평가방법 연구
윤희성(YOON, Hee Sung),이영인(LEE, Young Ihn) 대한교통학회 2015 대한교통학회 학술대회지 Vol.72 No.-
대중교통은 정시성 유지를 통해 승객의 통행권을 보장하는 것을 큰 목표로 한다. 때문에 운영상에 부정적인 영향을 미치는 사건 (Incident)에 대해 시스템의 기능을 얼마나 잘 유지하는지가 중요하다. 본 연구는 대중교통(시내버스 단일노선)의 회복탄력성에 관한 내용을 다루고 있다. 본 연구의 목적은 대중교통의 회복탄력성을 정의하고, 이를 정량적으로 평가할 수 있는 방법론을 제시하는 것 이다. 이를 위해 회복도와 취약도의 개념을 이용한 회복탄력성 지표의 개발을 통해 버스노선의 정류장 구간별 회복탄력성을 평가하 는 방법론을 제시하였다. 그리고 이 방법론을 토대로, 서울시 스마트카드 자료를 이용해 실제 운영되고 있는 버스노선(간선버스 350, 360번)의 일부 구간에 대하여, 회복도와 취약도 측정을 통해 운영상의 회복탄력성을 평가하였다. 분석결과 노선별로 각각 서울 교대앞/서울교육대학교 구간, 반포역/고속터미널 구간의 취약도 및 회복도 수치가 가장 높게 산출되었다. 이후 두 지표 산출값에 대 한 상관분석을 통해 지표 간 동일한 교통상황 해석여부에 대한 검증을 실시하였다.