허베이 스피리트호 유류유출사고 지역주민의 급성건강영향

이철헌,강영아,장규진,김창훈,허종일,김재연,이종구,Lee, Cheol-Heon,Kang, Young-A,Chang, Kyu-Jin,Kim, Chang-Hoon,Hur, Jong-Il,Kim, Jae-Youn,Lee, Jong-Koo 대한예방의학회 2010 예방의학회지 Vol.43 No.2

Objectives: On December 7, 2007, the Hebei Spirit oil tanker spilled out 12,547 kl of crude oil on the Yellow Sea 10 km away from the cost of Taean Province, Korea. As the coastline has been contaminated, local residents have been exposed to crude oil. Because the residents were showing many symptoms, we investigated the acute health effects of this oil spill on them. Methods: We conducted a cross-sectional study consisting of the heavy and moderately oil soaked area in Taean and the lightly oil soaked area in Seocheon. Ten seashore villages were selected from each area, and 10 male and female adults were selected from each village. We interviewed the subjects using a structured questionnaire on the characteristics of residents, the cleanup activities, the perception of oil hazard, depression and anxiety, and the physical symptoms. The odds ratios and 95% confidence intervals were analyzed using logistic regression analysis. The logistic regression model was adjusted for age, gender, education, smoking, the perception of oil hazard and anxiousness. Results: The more highly contaminated the area, the more likely it was for residents to be engaged in cleanup activities and have a greater chance of exposure to oil. The indexes of anxiety and depression were higher in the heavy and moderately oil soaked areas. The increased risks of headache, nausea, dizziness, fatigue, tingling of limb, hot flushing, sore throat, cough, runny nose, shortness of breath, itchy skin, rash, and sore eyes were significant. Conclusions: The results suggest that exposure to crude oil is associated with various acute physical symptoms. Long-term investigation is required to monitor the residents' health.

도로영상에서 움직이는 물체 추적을 위한 윤곽선 및 특징 파라미터 추출

이철헌,설성욱,주재흠,남기곤,Lee, Chul-Hun,Seol Sung-Wook,Joo Jae-Heum,Nam Ki-Gon 대한전자공학회 2000 電子工學會論文誌-CI (Computer and Information) Vol.37 No.1

This paper presents the method of extracting the contour and shape parameters for moving object tracking in traffic scenes. The contour is extracted by applying difference image method in reduction image and the features are extracted from original image to grow the accuracy of tracking. We used features such as circle distribution, center moment, and maximum and minimum ratio. Data association problem is solved by these features. Kalman filters are used for moving object tracking on real time. The simulation results indicate that the proposed algorithm appears to generate feature vectors good enough for multiple vehicle tracking. 본 논문은 도로영상에서 움직이는 물체 추적을 위한 윤곽선 및 형태 파라미터 추출방법을 제안코자 한다. 축소영상에서 차영상 방법을 이용하여 윤곽선을 추출하고 원영상에서 특징을 추출함으로써 추적의 정확성을 높이고자 한다. 사용된 특징은 물체화소의 원분포, 중심모멘트, 최대${\cdot}$최소비이다. 이를 이용하여 데이터 연상문제를 해결하였으며, 실시간 추적을 위하여 칼만필터를 사용하였다. 제안된 알고리즘에 의해 추출된 특징 벡터는 다중 차량 추적에 적합함을 실험을 통해 보였다.

머신비젼을 이용한 Cross Coil Movement 자동검사 시스템에 관한 연구

이철헌,설성욱,주재흠,이상찬,남기곤,Lee, Chul-Hun,Seol, Sung-Wook,Joo, Jae-Heum,Lee, Sang-Chan,Nam, Ki-Gon 대한전자공학회 1999 電子工學會論文誌, S Vol.s36 No.11

본 논문은 움직이는 물체가 존재하는 영상열에서 특정 물체만을 계속 추적하고자 하는 방법을 제안하였다. 밝기값과 동작(motion)경계점에 기반을 둔 윤곽선(contour) 추적 알고리즘을 이용하였다. 영상에서 움직이는 물체의 윤곽선의 동작은 이동, 회전, 크기변화를 나타내는 아핀 동작 모델에 의해 잘 묘사되어짐을 가정한다. 움직이는 물체의 윤곽선은 영상열을 따라 추정되는 B-스플라인에 의해 위치와 동작이 표현된다. 패턴인식을 이용하여 추적하고자하는 물체인지를 판별한다. 선형 칼만 필터를 사용하기 위해 아핀 동작 매개변수와 움직이는 물체의 윤곽선 모양(shape)의 두 필터로 추정과정을 나누었다. 차량계기판을 대상으로 한 실험영상에서 이 방법을 이용하여 방해물체가 존재하는 경우에도 안정된 동작의 추정과 추적된 궤적의 획득이 가능함을 보였다. In this paper we address the tracking method which tracks only target object in image sequence including moving object. We use a contour tracking algorithm based on intensity and motion boundaries. The motion of the moving object contour in the image is assumed to be well describable by an affine motion model with a translation, a change in scale and a rotation. The moving object contour is represented by B-spline, the position and motion of which is estimated along the image sequence. we use pattern recognition to identify target object. In order to use linear Kalman Filters we decompose the estimation process into two filters. One is estimating the affine motion parameters and the other the shape of moving object contour. In some experiments with dial plate we show that this method enables us to obtain the robust motion estimates and tracking trajectories even in case of including obstructive object.

의류 생산 데이터 증강을 통한 딥러닝 알고리즘 신뢰도 검증 연구

이현수(H. S. Lee),방상민(S. M. Bang),김형중(H. J. Kim),정우균(W. K. Jung),김대현(D. H. Kim),이재원(J. W. Lee),박용철(Y. C. Park),안성훈(S.-H. Ahn) Korean Society for Precision Engineering 2020 한국정밀공학회 학술발표대회 논문집 Vol.2020 No.9월

단세포군 항체 OKT6를 이용한 태아의 표피 Langerhans 세포 출현에 관한 연구

이철헌(Cheol Heon Lee),윤재일(Jai Il Youn),이유신(Yoo Shin Lee),조사선(Sa Sun Cho) 대한피부과학회 1985 大韓皮膚科學會誌 Vol.23 No.1

Using a monoclonal antibody OKT 6, we nvestigated Langerhans cells by indirect immunoperoxidase technique in 60 skin specimens of fetuses from 3 months of gestation period to 10 months and 21 skin specimens of adults for the study of their development and the comparison of their density in fetus with adult. The results were as follows: 1. Langerhans cell population density of fetus was 52/mm in 4 months of gestation period, l07/mm in 5 months,136/mm in 6 months, l97/mm in 7 months, 235/mm in 8 months, and 311/mm in 10 months and there was a tendency to increase from 4 months to 1Q months. The earliest fetal skin specimen showing OKTg(+) Langerhans cell was that of 13 weeks and 2 days of gestation period. 3. Langerhans cell population density of back skin in fetus was 12.6% in 5 months, 16.0%, in 6 months, 20. 8% in 7 months, 26. 4% in 8 months and 36, 2% in 10 months of 900/mm in adult back skin. 4, Langerhans cell population density in adult was 432/mm in the skin of shin, 363/mm in prepuce, and 90Q/mm in back skin and there was statistically significant in difference between prepuce and back skin(p<0. 00l).

Laureth 9에 의한 접촉 피부염

이철헌(Cheol Heon Lee),신자경(Ja Kyoung Shin),박천욱(Chun Wook Park) 대한피부과학회 1993 대한피부과학회지 Vol.31 No.1

Laureth 9 is a nonionic surfactant and it is used as a sclerosing agen; in the treatment of esophageal and gastric varices and a local anesthetics. We report a 20-year-old male patient presenting with features of alergic contact dermatitis due to laureth 9 used in the oxoralen, ointment. (Kor J Dermstol 1993; 31(1): 95-98)

지역사회 재가불자의 사회참여

이철헌(Lee Cheol heon) 동국대학교 불교사회문화연구원 2009 불교문화연구 Vol.10 No.1

한국불교는 깨달음을 추구하면서 중생들을 구제한다는 대승불교를 지향하면서도 고통 받는 민중들에게 다다가 손을 내미는 데에는 아직도 인색한 게 사실이다. 기독교계의 적극적이고 광범위한 사회참여활동에 자극받아 불교계가 뒤늦게나마 사회참여의 중요성을 깨닫고 교단에서 사회참여에 대한 관심과 지원을 확대하고 있으니 다행한 일이다. 그러나 세속의 욕망을 끊고 출가하여 수행하는 출가자들이 복잡다난한 현실의 문제를 이해하고 해결하기에는 많은 제약이 있다. 오늘날 사회의 여러 문제점들은 전문화되고 다양화되었기 때문에 출가수행자보다는 재가불자들이 이해와 판단이 빠르고, 신속하고 효율적으로 해결할 수 있으므로 사회참여에 대한 재가불자들의 역할은 매우 중요하다. 중소도시의 지역사회는 정치·경제·사회·문화 전반에 걸쳐 대도시와 많은 차이를 가지고 있다. 수도권역에 모든 인구와 각종 시설이 집중됨으로써 그 외 지역사회는 소외되고 있으며, 대도시와 그 외 지역간의 소득과 문화 격차는 심각한 현실이 되었다. 지역사회는 여러 인맥으로 얽혀 있고, 지역 유지들이 기득권을 가지고 있으며, 지역이기주의 성향이 매우 강하고, 경제력이 미약하고, 주민들의 사회문제에 대한 인식수준이 낮으며, 노인층이 많고, 각종 정보수집이 어렵다. 그리고 지역불교사회는 주지의 독단적인 사찰운영, 신자들의 불교교리에 대한 무지와, 기복적인 신앙형태, 출가자와 재가신자들의 의식수준이 낮으며, 신도의 노령화로 사회참여에 많은 어려움이 있다. 이러한 지역사회에서 재가불자들이 사회참여를 하기 위해서는 먼저 불교에 대한 올바른 이해와 함께 보리심을 가져야 한다. 그리고 지역의 사찰과 연대하여 출가자와 재가불자가 함께 사회참여를 해야 하며, 지역의 특성에 맞도록 가능한 자원을 가지고 작게 천천히 시작해야 한다. 그리고 지역의 사회단체와 협력하면서 보다 많은 사람들이 참여하도록 하고 교육과 경험을 통해 전문가를 양성해야 한다. Korean Buddhism is stingy in giving its hands to the public even though it aims Mahāyāna Buddhism which practices the way of bodhisattva that redeems mankind pursuing enlightenment. Encouraged by the active and broad social engagement activities of Christianity, Buddhism realized the importance of social engagement and expanded support and interest in it. However, it s hard for monks to worry about and solve worldly problems since they became monks to cut off worldly desire and relations. In addition, the number of monks is insufficient to engage in diverse social problems. Because many problems of modern society are specialized and various, Buddhists who understand the problems well and have good judgment are more adequate in social engagement than monks. Communities of small and medium-sized cities have plenty of differences from major cities in politics, economy, culture etc. Communities are excluded due to the centralization of population and facilities in capital area. The cultural gap between major cities and the other regions became severe realities. Communities have many personal connections and community leaders have vested rights. Communities have regional self-centeredness, little economic power, and plenty of senior citizens. Members of the communities lack awareness of social problems and ability to gather information. Buddhism of local society have a great deal of difficulties in social engagement owing to a dogmatic management of chief buddhist monk, ignorance of buddhist doctrines, inconsistent form of faith, low awareness of buddhists, and aging of buddhists. For buddhists to engage in society they should have accurate understanding of Buddhism and mercy in advance. Buddhists should participate in society along with monks banded together with local temples. They should start slowly with enough resources to fit local needs. Lots of people should join and experts should be trained through education and experience.

Irritant Patch Test with Sodium Lauryl Sulphate

이철헌 ( Cheol Heon Lee ) 한국피부장벽학회 1999 한국피부장벽학회지 Vol.1 No.1

나옹혜근의 고려말 불교 주도와 여말선초 나옹혜근 문도의 활약

이철헌(Lee Cheol-heon) 보조사상연구원 2021 보조사상 Vol.61 No.-

고려말 삼사 경한‧보우‧혜근 가운데 실질적으로 불교계를 주도한 이는 공민왕사 혜근이다. 혜근이 고려말 불교를 주도한 배경에는 서천 108조인 지공(指空, 1300~1361)의 후광과 공민왕이 주관한 공부선의 시험관 그리고 민중친화력이 있었다. 그리고 입적할 당시 많은 이적이 나타났고, 수많은 사리를 남겨 민중들이 열광적으로 추모했다. 혜근이 왕사가 된 이후 머물렀던 사찰로 대표 문도들이 주지를 했던 사찰 가운데 송광사와 회암사가 매우 중요한 사찰이다. 송광사는 고려중기 선종을 대표하는 지눌을 비롯해 수선사계의 많은 소승을 배출한 사굴산문의 대표 사찰로 동방제일도량이라 불렸다. 고려말 나옹혜근과 그 문도인 환암혼수·무학자초·혜암상총‧고봉법장이 주지를 했다. 송광사는 혜근의 선법을 이은 혼수와 증명삼화상의 계보를 이은 자초가 모두 주지를 하고 있다. 오늘날 송광사 16국사에 국사인 환암혼수는 제외하고 고봉법장을 넣어 16국사라 말한다. 법장은 국사가 아니었음에도 불구하고 조선초 송광사를 크게 중창한 인물로 국사전에 봉안되었기 때문이다. 기산(綺山)은 송광사연혁(松廣寺沿革)에서 고봉법장 대신에 환암혼수를 16국사에 넣고 있으며, 보조이하 수선사계의 법을 나옹과 무학이 잇고 있다고 했다. 16국사에 대한 역사적 배경을 살펴 16국사에 대한 인식을 바꾸어야 할 필요성을 제기하고 있다. 송광사는 ‘지눌-…-혜근-혼수’의 국내 조계선 법맥을 이어온 사찰이고, 회암사는 ‘지공-나옹-무학’ 삼화상의 법맥을 이어온 사찰이다. ‘혜근-혼수’가 공부선을 통한 사법전등이라면 ‘혜근-자초’는 민중친화의 교화전등이라 할 수 있다. 회암사는 폐사되어 사라졌으니 이제 송광사가 조계선과 삼화상 법맥을 모두 아우르는 중심사찰이 되어야 한다. Among the three monks of the Late Goryeo Dynasty, Gyeonghan, Bowoo, and Hyegeon, the one who actually led the Buddhist society was Hyegeon, the mentor of King Gongmin. In the background of Hyegeon leading Buddhism in the late Goryeo Dynasty, there were the halo of Jigong, the 108th of the Indian Lineage, the examiner of Kunghu zen, which was supervised by King Gongmin, and the friendliness of the people. When he died, many miracles appeared, and he left many relics, which the people enthusiastically commemorated. Songkwang temple and Hoiam temple are very important temples among the temples that Hyegeon stayed at after becoming the mentor of king and where Hyegeon’s leading disciples became the chief priest. Songkwang temple was called the best temple of Korea as the representative temple of Sakulsanmoon, which produced many monks of the Sooseon Temple Lineage, including Jinul who represented the Zen sect of the middle Goryeo Dynasty. At the end of the Goryeo Dynasty, Naong Hyegeon and his disciples, Hwanam Honsoo, Muhak Jacho, Hyeam Sangchong, and Gobong Beobjang became the chief priest at the temple. Honsoo, who succeeded Hyegeon s Zen Linage, and Jacho, who inherited the genealogy of the three monks become the chief priest at Songkwang temple. Today, 16 National Preceptors of Songkwang temple are called 16 National Preceptors by adding Gobong Beobjang, excluding Hwanam Honsoo, a National Preceptor. This is because, although Beobjang was not a National Preceptor, he was enshrined in the house of National Preceptors as an important figure who rebuilt Songkwang temple in the early Joseon Dynasty. Gisan said that in The History of Songkwang temple, Hwanam Honsoo is included in the 16 National Preceptors of Songkwang temple instead of Gobong Beobjang, and Naong and Muhak succeeded the law of the Suseonsagye after Bojo. By examining the historical background of the 16 National Preceptors, the necessity of changing the perception of the history of the 16 National Preceptors is raised. Songkwang temple is a temple that has continued the Lineage of domestic Jogye Zen of ‘Jinul-…-Hyegeon-Honsoo’, and Hoiam temple is a temple that has continued the Lineage of the three monks, ‘Jigong-Naong-Muhak’. If ‘Hyegeon-Honsoo’ is the transmission of Zen, ‘Hyegeon-Jacho’ is the people-friendly transmission of enlightenment. Since Hoiam temple was ruined and disappeared, Songkwang temple should now become the central temple encompassing the Lineage of Jogye Zen and the three monks.

자극성 접촉 피부염을 위한 피부검사

이철헌 ( Cheol Heon Lee ) 대한피부과학회 1997 대한피부과학회지 Vol.35 No.1

Irritant contact, dermati is causes significant disability to numerous consumers and individuals in industry. Irritant contact dermatitis accounts for more than half of contact dermatitis in the general population and this is highest in industrialized countries. The incidence of irritant contact dermatitis is difficult to evaluate because of majority of these patients never seek medical advice for their problem. Only a fev, typical characteristics for an irritant contact dermatitis can be stated. The diagnosis is generally made on the basis of the clinical picture. Several non-invasive bioengineering methods for quantifying and obtaining information that is not detectable clinically have been developed in recent decades. Recently rnany reports on experimental irritant contact de matitis using these new non-invasive bioengineering methods have been published. Irritancy test rported by many authors have been performed using various exposure methods and evaluated by several clinical scoring systems. It is not surprising therefore that there is nowadays a multitude of irritancy testing methods, which hampers the interpretation of results from different laboratories. This article reviews the various irritancy testing methods and patch test procedures t,hat affect the skin react,ion in exper mental irritant cont,act dermatitis. (Kor J Dermatol 1997;35:<1>: 1~10)