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김혜인,권예은,백승윤,황재영,손석우,박향숙,차은정,Hyein Kim,Yeeun Kwon,Seung-Yoon Back,Jaeyoung Hwang,Seok-Woo Son,HyangSuk Park,Eun-Jeong Cha 한국기상학회 2024 대기 Vol.34 No.2
Atmospheric rivers (ARs) are closely related to local precipitation which can be both beneficial and destructive. Although several studies have evaluated their predictability, there is a lack of studies on East Asian ARs. This study evaluates the prediction skill of East Asian ARs in the Korean Integrated Model (KIM) for 2020~2022 summer. The spatial distribution of AR frequency in KIM is qualitatively similar to the observation but overestimated. In particular, the model errors greatly increase along the boundary of the western North Pacific subtropical high as the forecast lead time increases. When the prediction skills are quantitatively verified by computing the Anomaly Correlation Coefficient and Mean Square Skill Score, the useful prediction skill of daily AR around the Korean Peninsula is found up to 5 days. Such prediction limit is primarily set by the wind field errors with a minor contribution of moisture distribution errors. This result suggests that the improved prediction of atmospheric circulation field can improve the prediction of East Asian summer ARs and the associated precipitation.
김혜인,추은주,김효열,김영근,김신우,장현하,차승익,이재희,기현균,정혜숙,유광하,류성열,권기태,이병기,김도진,강철인,정두련,백경란,송재훈,서지영,심태선,문치숙,이현경,박성연,오진영,정숙인,박경화,윤나라,윤성호,손경목,김연숙,정기석 대한의학회 2013 Journal of Korean medical science Vol.28 No.9
The pneumonia severity index (PSI) and CURB-65 are widely used tools for the prediction of community-acquired pneumonia (CAP). This study was conducted to evaluate validation of severity scoring system including the PSI and CURB-65 scores of Korean CAP patients. In the prospective CAP cohort (participated in by 14 hospitals in Korea from January 2009 to September 2011), 883 patients aged over 18 yr were studied. The 30-day mortalities of all patients were calculated with their PSI index classes and CURB scores. The overall mortality rate was 4.5% (40/883). The mortality rates per CURB-65 score were as follows: score 0,2.3% (6/260); score 1, 4.0% (12/300); score 2, 6.0% (13/216); score 3, 5.7% (5/88); score 4, 23.5% (4/17); and score 5, 0% (0/2). Mortality rate with PSI risk class were as follows: I,2.3% (4/174); II, 2.7% (5/182); III, 2.3% (5/213); IV, 4.5% (11/245); and V, 21.7%(15/69). The subgroup mortality rate of Korean CAP patients varies based on the severity scores and CURB-65 is more valid for the lower scores, and PSI, for the higher scores. Thus, these variations must be considered when using PSI and CURB-65 for CAP in Korean patients.
모조 태풍 합성 재분석 바람장을 이용한 북서태평양 극치 해상풍 추정
김혜인,문일주 한국해양과학기술원 2021 Ocean and Polar Research Vol.43 No.1
In this study, extreme wind speeds in the Western North Pacific (WNP) were estimated using reanalysis wind fields synthesized with an empirical typhoon vortex model. Reanalysis wind data used is the Fifth-generation European Centre for Medium-Range Weather Forecasts (ECMWF) reanalysis (ERA5) data, which was deemed to be the most suitable for extreme value analysis in this study. The empirical typhoon vortex model used has the advantage of being able to realistically reproduce the asymmetric winds of a typhoon by using the gale/storm-forced wind radii information in the 4 quadrants of a typhoon. Using a total of 39 years of the synthesized reanalysis wind fields in the WNP, extreme value analysis is applied to the General Pareto Distribution (GPD) model based on the Peak-Over-Threshold (POT) method, which can be used effectively in case of insufficient data. The results showed that the extreme analysis using the synthesized wind data significantly improved the tendency to underestimate the extreme wind speeds compared to using only reanalysis wind data. Considering the difficulty of obtaining long-term observational wind data at sea, the result of the synthesized wind field and extreme value analysis developed in this study can be used as basic data for the design of offshore structures.
[논문]천연염색에 관한 연구 -자근에 의한 면의 염색에서 농색화와 세탁견뢰도 향상-
김혜인,최해욱,박수민 釜山大學校生産技術硏究所 2008 生産技術硏究所論文集 Vol.67 No.-
천연의 금속매염염료인 자근에 의한 변의 염색에서 농후,견뢰염색을 목적으로 각종의 염색조건의 변화 및 변의 개질에 따른 염료의 염색성을 비교 ? 검토하였다. 그 결과 자근색소추출은 아세톤추출이 가장 적당하였으며,온도와 pH가 높을수록 염색시료가 bluish색상을 나타내었다. 카르복시메틸화면에 선매염후 67"C 에서의 염색이 염착량 증대 및 세탁견뢰도 향상에 효과적이었다.
김혜인,심기남,조형원,최주영,이신아,이민진,오다연,노선희,태정현,김성은,정혜경,김태헌,정성애,이선영,유권,문일환 이화여자대학교 의과학연구소 2010 EMJ (Ewha medical journal) Vol.33 No.2
저자들은 부주의에 의해 강알칼리를 마신 후 초기에 내시경 검사에서 식도, 위, 십이지장의 점막에서 IIa-IIa-0 정도의 손상을 보였던 환자가, 발생 9주째에 부식성 손상에 의한 상부 위장관 괴사로 진행되어 사망한 예를 경험하였기에 이에 대해 보고하는 바이다. Ingestion of corrosive substances can produce severe injury to the gastrointestinal tract and can even result in death in the acute phase. The extent and degree of damage depends on the type and amount of substances. There are occasional reports of severe contiguous injury to the esophagus and stomach caused by strong alkali ingestion in the acute phase. Usually the deaths occur within a couple of days due to multi-organ failure after ingestion of relatively much amount of agent for a suicidal attempt. But death due to late progression is very rare. We have reported a case of 60-year-old female patient who was diagnosed as corrosive esophagitis after accidental ingestion of strong alkali. Initial endoscopic findings were compatible with IIa-IIa-0(according to Zargar’s classification) in the esophagus, stomach and duodenum, respectively. After several weeks of supportive care, her subjective symptoms were much improved during she had been wating for the operation of colon interposition due to esophageal stricture. Metabolic acidosis and thrombocytopenia developed abruptly probably due to upper gastrointestinal tract necrosis and she died when 60 days had passed after the occurrence of initial esophageal injury.