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병원 웹사이트 품질 인식(사용용이, 의료정보, 심미성, 안전성)이 고객충성도에 미치는 영향(신뢰를 조절변수로)
민순 ( Soon Min ),김혜숙 ( Hye Sook Kim ),김희영 ( Hee Young Kim ),하윤주 ( Yoon Ju Ha ),김은아 ( Eun A Kim ),김금희 ( Geum Hee Kim ) 한국병원경영학회 2011 병원경영학회지 Vol.16 No.2
The research was to investigate the effect of quality cognition(usage, medical information, aesthetic, safety) of the web site of the facility on customer loyalty and moderating role of trust variable. The respondents was 201 patients and caregivers. Data were collected from March 1 to 31, 2010 at C university hospital in G city. In relationship between quality cognition of facility web site and customer loyalty, the results of quality cognition on customer loyalty showed 43.1% (F=36.912) in model 1, 46.3%(F=33.454) in model 2, and 46.8%(F=18.580) in model 3. In relationship between web site quality cognition and customer loyalty, moderate effect of trust was not considerable. As results, quality is the leading fact for customer loyalty more than trust. Therefore, customer loyalty leaves its possibility of increment when facility web site is designated depending on medical information, usage and aesthetic.
쓴메밀 종자의 추출방법에 따른 루틴 및 퀘세틴 함량 비교
김수정(Su Jeong Kim),손황배(Hwang Bae Sohn),김금희(Geum Hee Kim),이유영(Yu Young Lee),홍수영(Su Young Hong),김기덕(Ki Deog Kim),남정환(Jeong Hwan Nam),장동칠(Dong Chil Chang),서종택(Jong Taek Suh),구본철(Bon Cheol Koo),김율호(Yul Ho 한국식품과학회 2017 한국식품과학회지 Vol.49 No.3
본 연구는 초고성능액체크로마토그래피(Ultra Performance Liquid Chromatography, UPLC)를 이용하여 쓴메밀 종자에서 루틴 및 퀘세틴 함량을 신속 정확히 평가하기 위한 효율적인 추출방법을 구명하고자 수행하였다. 추출방법으로 환류냉각추출, 초음파추출, 상온교반추출, 초음파후 환류냉각추출, 상온교반 후 환류냉각추출, 상온교반후 초음파추출, 상온교반과 초음파 후 환류냉각추출 등 7가지 방법을 비교하였다. 루틴 함량에서 7가지 추출방법은 통계적으로 유의한 차이를 보였으나, 퀘세틴 함량에서 추출방법 간 유의차가 없었다. 환류냉각추출의 루틴과 퀘세틴 함량은 각각 2,277, 158 mg/100 g으로 추출방법 중 함량이 가장 많아 추출수율이 높았으며 검출횟수도 가장 높았다. 반면, 초음파 추출의 루틴과 퀘세틴의 함량이 처리구 중 가장 낮았으며, 검출횟수도 가장 적었다. 환류냉각추출에서 일내 반복성(intra-day repeatablility)과 일간 정밀성(inter-day precision)은 상대적표준편차(relative standard deviation, RSD)가 0.4-3.2%로 안정적으로 추출되었고, 정확도는 88.8-102.4%로 국제적 회수율 권고치 기준에 부합하였다. 따라서, 쓴메밀 루틴 추출방법으로는 추출 소요시간이 1시간 이내로 짧으면서 루틴 함량이 가장 안정적으로 많이 추출되는 환류냉각추출이 가장 적합하였다. The stability and accuracy of ultra-performance liquid chromatography (UPLC) used for evaluating the contents of rutin and quercetin in tartary buckwheat (Fagopyrum tataricum Gaertn.) seeds extracted by seven different extraction methods were determined. The seven extraction methods were reflux extraction (RE), ultra-sonification extraction (UE), stirrer extraction (SE), RE after UE (UE+RE), RE after SE (SE+RE), UE after SE (SE+UE), and RE with UE after SE (SE+UE+RE). Among the seven extraction methods used, RE yielded comparatively higher contents of rutin (2,277 mg/100 g) and quercetin (158 mg/100 g) than those yielded by other six extraction methods. The intra-day repeatability and inter-day precision of RE was 0.4-3.2% considering relative standard deviation (RSD), while accuracy was 88.8-102.4%. Therefore, RE with UPLC would be a rapid, accurate, and stable method for analyzing rutin and quercetin contents in tartary buckwheat.
제트팬 노즐 형상 변화에 따른 기류 및 전력 사용량 특성비교
권혁민(Kwon, Hyuk-Min),김금희(Kim, Geum-Hee),박제규(Park, Jea-Kyu),양정훈(Yang, Jeong-Hoon) 대한건축학회 2016 대한건축학회논문집 Vol.32 No.8
Recently, residents living in high-density residential zones have been ever increasing, with floor area ratios growing higher following the industrial development and the enhancement of our living standards. Consequently, there is an insufficient number parking spaces. In order to solve the lack of parking spaces an increasing number of underground parking lots are being constructed. Nowadays, jet fan ventilation systems utilizing the airflow induced by jet fans are being widely used for the ventilation of large areas such as underground parking lots and tunnels. The purpose of this actual study is to present a jet fan that is designed to reduce electric power consumption and carbon dioxide emissions through the enhancement of its performance. The airflow characteristics of a jet fan that is widely used for the ventilation of underground parking lots and large spaces were realized during the experiments performed in this study. In order to enhance the performance of the existing jet fan, alternative cases were fabricated and their airflow characteristics, etc. were measured. In addition, the power consumption for each case was also measured, thereby predicting the correct amount of carbon dioxide (CO2) emissions. Case 1 (inside guide type) presented as an alternative for the basic case was found to be the most superior type. It was considered to be more effective when reducing the power consumption and carbon dioxide emissions by approximately 30% in comparison to the basic case. It is thought that a better performance than that of an existing jet fan can be realized by simply replacing its nozzle part with a new one..