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김은희,김철규,이순교,김순덕,이혜옥,권정순,이경미,이민미,심순미,유용만,신종식,강은희,이상일,김병식,오성태,육정환,박수길 한국의료QA학회 2003 한국의료질향상학회지 Vol.10 No.2
Background : Gastric cancer is the most common malignant tumor in Korea. surgical operation is one of the major treatment modalities for gastric cancer patients. Therefore, gastrectomy is one of the most common procedures in General Surgery. There were variation in length of hospital stay and medical treatment for gastrectomy between three surgeons at Asan Medical Center. Clinical pathways have received considerable attention as a tool for recucing the medical practice variation, increasing the efficiency of care process, and improving the quality of care. The aim of this study was to evaluate the effect of a clinical pathway for gastrectomy in gastric cancer patients. Methods : The clinical pathway for gastrectomy was developed and implemented by a multidisciplinary group in Asan Medical Center. A computerized clinical pathway program was developed and revised after a pilot test. A total of 145 patients underwent gastrectomy by three surgeons at Asan Medical Center. We compared the length of hospital stay, patient satisfaction, and unplanned readmission rate between the pre-pathway group(n=67) and the post-pathway group(n=78). We also investigated the degree of satisfaction among the physicians and nurses who were main end-users of the clinical pathway. Results : The clinical pathway was applied to all target patients. The average length of hospital stay was shortened from 12.7days to 10.6days(p<0.01). The degree of patient satisfaction with the care process changed from 90.3% to 89.2% after the implementation of the clinical pathway, but the difference was of satistically significant(p=0.761). Unplanned readmission rate was 2.9% in the pre-pathway group. More than 90% of physicians and nurses answered that the clinical pathway had been a useful tool in their medical practice. Conclusions : The findings of the study demonstrated that implementation of the clinical pathway for gastrectomy produced substantial reduction in the length of hospital stay while improving the quality of patient outcomes. The computerized clinical pathway program can be used as one of the powerful patient management tools for reducing the practice variations and increasing the efficiency of care process in Korea hospital settings.
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신우석,최규하,정만규 건국대학교 산업기술연구원 1994 건국기술연구논문지 Vol.19 No.-
This paper describes voltage-controlled delta-modulation scheme for active power filters, which is to control the harmonic-compensating current indirectly by adjusting the capacitor voltage to be sinusoidal. The overall control system has two feedback loops : one is the outer proportional feedback for loop regulating the de current of the active filter and the other is the inner feedback loop for maintaining the ac current waveform to be sinusoidal, and to have zero power factor angle(i. e. unity power factor). The characteristics of the proposed scheme are investigated by digital simulation using ACSL.
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명정구,조선형,박정호,백상규,김종만,강필선 한국어류학회 2003 韓國魚類學會誌 Vol.15 No.3
1. 2002년 10월 16∼17일에 스쿠버다이빙, 수중 촬영을 통하여 전라남도 신안군 가거도 주변 가을철 연안의 어류상을 조사한 결과 총 5목 23과 40종이 확인되었고, 지금까지 기재 된 어종 이외에 18종이 추가로 확인되었다. 2. 어종 구성으로 보면 양볼락과가 7종으로 가장 많았으며, 그 다음으로 둑중개과가 4종, 자리돔과가 3종 순이었다. 3. 가거도 주변에서 지금까지 확인된 어종들은 온대성 어종이 대부분이었지만, 그 외에 노랑자리돔, 청황베도라치 및 파랑돔 등 난류성 또는 아열대 어종이 확인되어 제주도나 독도와 마찬가지로 대마난류의 영향도 받고 있음을 나타내었다. The fish fauna in the coastal waters of Gageodo Island, South-west Sea, was investigated by SCUBA diving in October 16 and 17, 2002. The fishes observed were classified into 40 species in 23 families. In Autumn, subtropical fishes in such as families as Pomacentridae, Pomacanthidae and Apogonidae, represented 12.5% of the total, while eurythermal species represented 72.5%.
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Analysis of PWM Converter for V-I Output Characteristics of Solar Cell
Jeong-Man Han,Byung-Hwan Jeong,Jae-Seok Gho,Gyu-Ha Choe 전력전자학회 2003 JOURNAL OF POWER ELECTRONICS Vol.3 No.1
Recently, photovoltaic system has been studied widely as a renewable energy system, because it does not produce environmental pollution and it has infinity energy souice from the sun. A study on photovoltaic system has a lot of problems like as reappearance and repetition of some situation in the laboratory experiment for development of MPPT algorithm and islanding detection algorithm, because output characteristics of solar cell are vaned by irradiation and surface temperature of solar cell Therefore, the assistant equipment which emulates the solar cell characteristics Which can be controlled arbitrarily by researcher is require to the ieseaichers for reliable experimental data In this paper, the virtual implement of solar cell (VISC) system is proposed to solve these problems and to achieve reliable experimental result on photovoltaic system. VISC system emulates the solar cell output characteristics, and this system can substitute solar cell in laboratory experiment system To realize the VISC, mathematical model of solar cell is studied for driving converter and the DC/DC converters are compared in viewpoint of tracking error using computer simulation Output dynamic characteristic of PV array is vaned by iriadiation and PWM converter performance is studied using PSIM simulator<br/>
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Jeong, Lak Shin,Yoo, Su Jeong,Lee, Kang Man,Koo, Mi Jeong,Choi, Won Jun,Kim, Hea Ok,Moon, Hyung Ryong,Lee, Min Young,Park, Jae Gyu,Lee, Sang Kook,Chun, Moon Woo 梨花女子大學校 藥學硏究所 2003 藥學硏究論文集 Vol.- No.12
Fluoroneplanocin A (12) was designed as a novel mechanism-based inhibitor of S-adenosylhomocysteine hydrolase (SAH) and efficiently synthesized via an electrophilic vinyl fluorination reaction (n-BuLi, N-fluorobenzenesulfonimide at -78℃). Fluoroneplanocin A exhibited 2-fold more potent SAH Inhibitory activity than the parent neplanocin A. A new mechanism of irreversible Inhibition discovered in this work might provide new alternatives in the design of a different class of antiviral agents operating via SAH inhibition.
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Epoxy Resin/ESO(Epoxidized Soybean Oil)의 혼합 함량에 따른 열적, 기계적, 전기적 절연파괴 특성 연구
김규만(Gyu- Man Kim),김수환(Soo-Hwan Kim),김정철(Jeong-Cheol Kim),김회창(Hoe-Chang Kim),문명진(Myeong-Jin Moon),배승열(Seung-Yeol Bae),변주희(Joo-Hee Byun),신규철(Gyu-Cheol Shin),이형원(Hyoung-Won Lee),전완수(Wan-Su Jeon),박재준(Jae- 대한전기학회 2022 대한전기학회 학술대회 논문집 Vol.2022 No.7
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