낙상으로 인한 좌심실 파열 후 생존한 환자 1례

배택환,김행재,정윤석,김준식,조준필,이철주 대한응급의학회 1995 대한응급의학회지 Vol.6 No.1

Blunt or nonpenetrating chest injuries are common after motor vehicle accidents or falls. Blunt injury to the heart ranges from contusion to rupture. Cardiac rupture, however, is un-common and associated with a very high mortality rate ; left ventricular rupture due to falling is even more rare. We experienced a case of left ventricular rupture of the heart caused by a fall, which the patient survived. A 63-year-old man fell off a ladder and presented with hypotension from left hemothorax and pericardial tamponade. The hemothorax was relieved via an emergency closed thoracostomy but dyspnea and hypotension continued. And so, echocardio-graphy was done and pericardial tamponade was detected. Emergency left thoracotomy was done to repair the rupture site. We believe that patients with cardiac rupture who reach the hospital alive can often be saved by prompt diagnosis and immediate surgical treatment.

Head-Space SPME에 의한 생체시료 중 메스암페타민류 분석(Ⅲ)

박미정,최상길,손행자,최화경,최영남,허상철,박종서,정희선 內務部 國立科學搜査硏究所 2002 國立 科學 搜査 硏究所 年報 Vol.34 No.-

解放後 濟州硏究槪觀(Ⅲ) : 社會科學分野

金榮敦,高南旭,夫萬根,申幸澈,金泰保,許鐵洙 제주대학교 탐라문화연구소 1985 탐라문화 Vol.0 No.4

Aesthetic Activity Occurring in Drinking Activities

Haeng Cheol Lee,Wan Sok Jang,Ming Hua Fan 한국차학회 2015 한국차학회지 Vol.- No.S

In recent years, the rapid development and wide application of Aesthetics fully demonstrates this trend of the times. High quality of life have become increasingly demanding of modern times, which naturally lead people to the tea drinking as a way to further improve the quality of life. This means the trend of aesthetic demands and development of tea drinking. “tea drinking activity” means in a space, using tea drinking tool, one or several people’s behavior of drinking tea. This may include all activities related to factors in the needs to drink tea. As Aesthetic Activities organized by diverse factors, Tea drinking can endogenous form a variety of Aesthetic Relations which can be independently stretched into different Aesthetic Activities. Tea drinking is the non-utilitarian, complex aesthetic carried out by a variety of Aesthetic Relations. Aesthetic occurred in tea drinking activities can be divided into appreciation aesthetic, artistic creativity aesthetic, emotional communicative aesthetic and cultivation aesthetic. This four kinds of Aesthetic are not independent but complex occurred.

명대(明代)후기 산차(散茶)문화 성립과정에 대한 고찰

이행철(Haeng-cheol Lee),맹주방(Shu-fang Meng) 한국차학회 2020 한국차학회지 Vol.26 No.2

본 논문은 산차와 초청제법의 맹아기인 송·원대를 지나, 명초기 태조의 “단차폐지령” 이후 150년 이상의과도기를 거쳐, 명대 후기에 이르러 초청법과 호포법으로 대표되는 산차문화로 정립되는 과정을 고찰하는데 목적을 두고 있다. 이를 위해, 우선 송·원대부터 단병차와 함께 존재했던 초차(산차), 산차 자다법 등을 여러 관련문헌기록들을 통해 명대 산차문화로의 전환에 대한 시대적 배경을 고찰하였다. 그리고 명대 산차문화가 정착된16세기말 이전의 다서들를 중심자료로 삼아, 산차와 말차의 공존, 증청법과 초청법의 공존, 산차 점다법, 촬포법, 산차 자다법, 산차 포다법 등의 상호 관계와 전개과정을 파악하고 정리하였다. 결국, 명대 포다법은 절강지역에서 유행한 찻그릇을 이용한 산차 점다법(촬포법)과 강소지역에서 성행한 다호를 이용한 산차 자다법이라는 두가지 흐름에서 기원하였음을 알 수 있다. 또한, 명대 후기 자사호가 호포법의 핵심 다호로 대두되는 데에 문인다인들의 심미관이 큰 영향을 주었음을 밝히고 있다. This paper reports the Method of San tea brewing in the Ming dynasty after an approximately 150-year transition period after emperor Taizu issued the Repeal order of Tuan tea. To this end, through various relevant documents, this study first investigated the background of the transition from the Cao tea (San tea) and the method of loose tea brewing, which existed at the same time in the Song-Yuan dynasty, to the loose tea culture in the Ming dynasty. Taking the tea books before the establishment of loose tea culture in the Ming dynasty in 1600 as the central data, the author respectively understood and sorted out the mutual relations and development process between loose tea and dust tea, steamed green tea and stir-fried green tea, the point tea method of loose tea, blister method, the boiling tea method, and brewing tea method of loose tea. Through this process, the origin of tea making in the Ming dynasty can be attributed to two trends: the popular tea bowl method in Hangzhou and the popular teapot method in Suzhou. In addition, under the influence of literati in the late Ming Dynasty, the paper examines the process in which zisha teapots became the core tea prop of the pot brewing method of loose tea.

LabVIEW를 이용한 무인항공기용 소형 터보제트 엔진의 Fuzzy-PID 제어기 설계

신행철 ( Haeng Cheol Shin ),지민석 ( Min Seok Jie ) 한국항행학회 2016 韓國航行學會論文誌 Vol.20 No.3

본 논문에서는 무인항공기용 소형 터보제트엔진에 대해 압축기 서지현상 및 화염소실을 방지하면서 과도응답 특성을 개선하는 제어기를 설계하였다. 터보제트 엔진의 가·감속 시 서지현상과 flame-out 현상을 방지하기 위해 연료 유량 제어 입력을 Fuzzy-PID 제어기로 생성하고 신속하고 안전하게 원하는 속도로 수렴할 수 있도록 제어기 설계한다. LabVIEW을 이용한 시뮬레이션을 통해 PID와의 응답특성 비교 분석 및 신속하고 안전하게 원하는 속도로 수렴하는 제어 성능을 확인하였다. In this paper, Propose to prevent compressor surge and improve the transient response of the fuel flow control system of turbojet engine. Turbojet engine controller is designed by applying Fuzzy-PID control algorithm. To prevent any surge or a flame out event during the engine acceleration or deceleration, the Fuzzy-PID controller effectively controls the fuel flow input of the control system. Fuzzy-PID results are used as the fuel flow control inputs to prevent compressor surge and flame-out for turbo-jet engine and the controller is designed to converge to the desired speed quickly and safely. Using LabVIEW to perform computer simulations verified the performance of the proposed controller. Response characteristics pursuant to the gain were analyzed by simulation.

임상연구 : Sevoflurane 흡입마취유도시 신속한 기관내 삽관을 위한 Rocuronium의 적정 용량

이행철 ( Haeng Cheol Lee ),양종윤 ( Jong Yoon Yang ),고신옥 ( Shin Ok Koh ),신양식 ( Yang Sik Shin ) 대한마취과학회 2003 Korean Journal of Anesthesiology Vol.44 No.5

국민대표회 ( 1921 - 1923 ) 연구 - 개조파 . 창조파의 민족해방운동론을 중심으로 -

조철행 ( Haeng Cho Cheol ) 고려대학교 역사연구소 1995 사총 Vol.44 No.-

『한국차학회지』 연구논문(2010-2020)에 기초한 차과학 연구 동향의 분석

이행철(Haeng-Cheol Lee),송관정(Kwan Jeong Song) 한국차학회 2021 한국차학회지 Vol.27 No.3

본 연구는 2010년부터 2020년까지 11년간 『한국차학회지』에 게재된 논문에 대한 분석을 통해 차과학 분야의 연구 동향과 선도 연구기관을 파악하고자 수행하였다. 지난 11년간 한국차학회지에 게재된 차과학 분야의 논문 편수는 270편이며, 6개 연구 분야에 대한 분류에서 차화학 분야가 가장 많은 논문 편수를 차지하였고, 차식물학, 차종합이용, 대용차, 제다가공, 관능평가 순으로 나타났다. 이들 연구 영역에서의 주요 주제는 녹차와 홍차에 관한 것이었다. 지역별로는 차주산지인 전라남도, 경상남도 및 제주도와 소비지인 서울, 부산 및 대구 순으로 나타났으며, 차주산지의 연구는 차식물학 및 재배 중심으로, 소비지의 연구는 차화학 및 효능 중심으로 수행되어, 전문화와 차별화가 나타났다. 이들 연구동향은 차의 소비 패턴 및 제품개발과 긴밀하게 연계되어 나타나는 것으로 보인다. 이는 향후 차산업 활성화를 위한 국가 및 지자체의 정책 개발과 연구 지원 방안 수립에 소중한 참고자료로 이용될 수 있을 것이다. This study was conducted to identify the research trends and leading research organizations in tea science based on the Journal of the Korean Tea Society (JKTS) publications for 11 years from 2010 to 2020. The number of research papers published in the JKTS for the last 11 years was 270. They were further classified into six categories, and the highest number was recorded in tea chemistry, followed by tea botany, tea utilization, herbal teas, manufacture and processing, and sensory evaluation in order. The major subjects in these categories were green tea and black tea. One of the two main centers of tea science research was tea botany and cultivation in the major regions of tea growing and production, including South Jeolla, South Gyeongsang, and Jeju Provinces. The other center of tea science research was tea chemistry and efficacy in the major regions of tea consumption, including Seoul, Busan, and Daegu city. These individual observations indicated research specialization and differentiation. The above trends of tea science researches were closely related to the tea consumption pattern and product development. The results indicate that these analytic data could importantly refer to establishing policy development and research support strategy by the central and local governments in the future.

광주지역 주요하천에서 TOC 특성과 수질오염지표와의 상관성에 관한 연구

양윤철 ( Yoon-cheol Yang ),이대행 ( Dae-haeng Lee ),이경석 ( Kyung-seog Lee ),안상수 ( Sang-su An ),송형명 ( Hyeong-myeong Song ),이세행 ( Se-haeng Lee ),윤상훈 ( Sang-hoon Yoon ),김선정 ( Sun Jung Kim ),전홍대 ( Hong-dae Jeon 한국물환경학회(구 한국수질보전학회) 2017 한국물환경학회지 Vol.33 No.2

This study was performed to verify the replacement of COD with TOC, which is more accurate and reliable in analysis, as the water quality pollution index, and to investigate the characteristics of water quality and the correlations among organic matter, suspended solids and nutrient materials from 2012 to 2015. The oxidation rates were compared by calculating the values of BOD-C/TOC and COD-C/TOC. The average value of TOC was 3.4 mg/L (range, 1.1 - 8.0 mg/L) at 14 sites during the period. The ratios of BOD-C/TOC and COD-C/TOC, that indicate the resolvability amounts among all carbon materials, were 28.8% and 62.7%, respectively. The correlation coefficient of TOC to COD at all sites was 0.718 (p<0.01), the highest value on comparing all items. The correlation coefficient of TOC to COD in the Gwangju stream was 0.753 (p<0.01), which was the highest compared to the values in other rivers. The correlation coefficient of TOC to COD was 0.757 (p<0.01) at all sites in the range of TP-III (0.1≤TP), and the correlation coefficient value was 0.762 (p<0.01) in the range of TN-II (2.0≤TP<3.0). As a result, TOC can be used as a water pollution index of organic matter instead of COD.