Moire 영상을 이용한 근골격계 질환의 한의학적 진단에 관한 연구

이은경,유승현,이수경,강성호,한종민,정명수,천은주,송용선,이기남,Lee Eun-Kyoung,Yu Seung-Hyun,Lee Su-Kyung,Kang Sung-Ho,Han Jong-Min,Chong Myong-Soo,Chun Eun-Joo,Song Yung-Sun,Lee Ki-Nam 대한예방한의학회 2000 대한예방한의학회지 Vol.4 No.2

This research has conducted studies on an Oriental medicine-based method of diagnosing of occupational musculoskeletal system diseases. This researcher has searched through existing relevant medical literature. Also, this researcher has worked on a moire topography using moire topography. In this course, this researcher has reached the following conclusion in relation to the possibility of using a moire topography as a diagnosing device of musculoskeletal system diseases under Oriental medicine . 1 The Western medicine outlines its criteria of screening occupational musculoskeletal system diseases as follows A. The occupational musculoskeletal diseases must clearly include one or more of the subjective symptoms characterized by pain, hypoesthesia dysaesthesia, anaesthesia. etc . B, There should be clinically admitted objective observations and diagnosis outlining that the disease concerned shows symptoms such as tenderness, induration. and edema that can appear with occupational musculoskeletal system diseases. dyscinesia should be admitted with the disease concerned, or there should be observations and diagnosis outlining that abnormality exists in electric muscular or nervous diagnosis and examination . C. It should be admitted that prior to the occurrence of symptoms or observations and diagnosis on musculoskeletal system-related diseases, a patient has been engaged in works with conditions requiring improper work posture or work movement. That is, this is an approach whereby they see abnormality in the musculoskeletal system come from material and structural defect, and adjust and control abnormality in the musculoskeletal system and secreta . 2. The Oriental medicines sees that a patient develops the pain of occupational musculoskeletal diseases as he cannot properly activate the flow of his life force and blood thus not only causing formation of lumps in the body and blocking the flow of life force and blood in some parts of the body. Hence, The Oriental medicine focuses on resolving the cause of weakening the flow of life force and blood, instead of taking material approach of correcting structural abnormality Furthermore , Oriental medicine sees that when muscle tension builds up, this presses blood vessels and nerves passing by, triggering circulation dyscrasia and neurological reaction and thus leading to lesion. Thus, instead of taking skeletal or neurophysiological approach. it seeks to fundamentally resolve the cause of the flow of the life force and blood in muscles not being activated. As a result Oriental medicine attributes the main cause of musculoskeletal system diseases to muscle tension and its build-up that stem from an individual's long formed chronicle habit and work environment. This approach considers not only the social structure aspect including companies owners and work environment that the existing methods have looked at, but also individual workers' responsibility and their environmental factors. Hence, this is a step forward method. 3 The diagnosis of musculoskeletal diseases under Oriental medicine is characterized by the fact that an Oriental medicine doctor uses not only photos taken by himself, but also various detection devices to gather information and pass comprehensive judgment on it. Thus, it is the core of diagnosis under Oriental medicine to develop diagnosing devices matching the characteristics of information to be induced and to interpret information so induced from the views of Oriental medicine. Diagnosis using diagnosing devices values the whole state of a patient and formal abnormality alike, and the whole balance and muscular state of a patient serves as the basis of diagnosis. Hence, this method, instead of depending on the information gathered from devices under Western medicine, requires devices that provide information on the whole state of a patient in addition to the local abnormality information that X-ray. CT, etc., can offer. This method sees muscle as the central par

산업보건에의 한의학적 참여방안에 관한 연구

이은경,정명수,천은주,김삼태,강성호,이수경,한종민,김성천,유택수,정재열,송용선,이기남,Lee E.K.,Chong M.S.,Chun E.J.,Kim S.T.,Kang S.H.,Lee S.K.,Han J.M.,Kim S.C.,Yu T.S.,Jeung J.Y.,Song Y.S.,Lee K.N. 대한예방한의학회 1999 대한예방한의학회지 Vol.3 No.2

Oriental Medical Service established foundation that Oriental medical clinic can take part in industrial health service by being specified industrial calamity medical treatment organ, but research which develope program that Oriental Medical Service approach on the occupational disease and industrial health only dealt in the Western Medical System was insufficient. So we studied on theoretical foundation and basic bearing about .program of oriental medical health examination in the workplace, it is based on explanation and assessment reformed by western medicine. We reached the conclusion as follows, 1. We must reconsider the concept that mind of Oriental medicine is preventive medicine, and assess positively result of social medicine. 2. Importance of industrial health is being enlarged in the category of health care. 3. Western medical health in including industrial health have faced much problems at this time, we can search by alternative proposal grafting on Oriental Medicine. 4. Oriental medical participation in the industrial health have various benefits at side satisfaction of workers, effect of prevention, efficiency of cost, and increasing rate of medical treatment and return to workplace of workers with industrial calamity. 5. We must consider Oriental Medical Health Examination as one way of health management program of workers, not as formality. 6. The advantage of Oriental Medical Health Examination can increase ability of individual health management in preventive medicine and the production in workers' health management.

우즈베키스탄 한방병원에서 진행한 한의약 비만관리 프로그램의 효과

이은경,정명수,유영진,권동현,이준석,장보형,윤진원,박유리,박해모,이선동,고성규,Lee, Eun-Kyoung,Chong, Myongsoo,Ryu, Young Jin,Kwon, Donghyun,Lee, Joonseok,Jang, Bo-Hyoung,Yun, Jin Won,Park, Yu Lee,Park, Haemo,Lee, Sundong,Ko, Seong-Gyu 대한예방한의학회 2015 대한예방한의학회지 Vol.19 No.2

Objective : As part of the Korean Medicine Official Development Assistance(ODA) and Public Health Project, we implemented a obesity management program(OMP) using Korean medicine in Uzbekistan and its follow-up study was conducted to evaluate the effectiveness of the program. Method : We recruited the participants of whose Body Mass Index(BMI) were over $25kg/m^2$ and who agreed to participate in the program at the South Korea-Uzbekistan Friendship Korean Medical Hospital in Uzbekistan. The program consisted of auricular acupuncture, functional food, and education program on diet and exercise. It was provided once a week during 7-week period. Anthropometric measurements and blood test measuring total cholesterol, triglyceride, and glucose were performed at the baseline, the end of the program, and 10-month follow-up. At the end of the program and the follow-up, survey on satisfaction and self-evaluation of the effectiveness of the program was additionally conducted. Results : 43 out of 78 participants completed the program and were included in the analysis. The analysis of the main outcomes showed that there were significant decreases in anthropometric measurements such as body weight, waist circumference, body mass index (BMI) and body fat content as well as blood test including triglycerides, total cholesterol and blood glucose levels. In the follow-up study, 24 subjects participated and 19 subjects (79.1%) reported that they succeeded in weight control. Furthermore, many participants reported that they maintained healthy lifestyles like healthy diet and regular exercise. The satisfaction with the program was also relatively high, and the education program was selected as the most motivating intervention for weight control. The outcomes such as body weight, BMI, body fat content, and blood glucose level were maintained to be at the decreased level; however, waist circumference, total cholesterol and triglycerides levels either returned back to the baseline level or were elevated to the level higher than the baseline. Conclusion : This study suggests that the OMP using Korean medicine may contribute to weight control of obese population in Uzbekistan. It is meaningful in that the study shows the possibility of implementing health promotion programs using Korean medicine in other countries with different cultures. In the future, more efforts to evaluate the effectiveness of the programs using rigorous methodologies and utilize the effective programs in ODA project will be needed.

저밀도내피세포 환자에서 회전진동방식의 초음파유화술을 이용한 백내장 수술 시 단기 임상결과

이은경,김미금,위원량,이진학,Eun Kyoung Lee,Mee Kum Kim,Won Ryang Wee,Jin Hak Lee 대한안과학회 2011 대한안과학회지 Vol.52 No.4

Purpose: To evaluate the short-term clinical outcome of cataract surgery using torsional mode phacoemulsification for patients with low endothelial cell density. Methods: Fifty-seven eyes of 52 patients who underwent torsional phacoemulsification and intraocular lens insertion were included in the present study. Patients were divided into groups according to endothelial cell density (ECD). The control group was comprised of patients with more than 2500/mm of ECD and was compared with the low ECD group (LECD) comprised of patients with less than 1600/mm of ECD. The LECD group was further divided into a very low ECD group (VLECD) comprised of patients with less than 1000/mm of ECD, and a PK-VLECD group comprised of patients with less than 1000/mm of ECD after penetrating keratoplasty. Measurement of ECD, cell-size variation coefficient, hexagonality, and central corneal thickness were performed preoperatively and 1 month after surgery. Results: The only one patient who had undergone penetrating keratoplasty with remaining low endothelial density and grade 4 nuclear sclerosis developed overt corneal edema after cataract surgery. No statistically significant differences in the change of endothelial cell characteristics and central corneal thickness before and after surgery were observed between the control and LECD group and between the VLECD and PK-VLECD group. Conclusions: Even in patients with low ECD, torsional phacoemulsification appears to have a similar effect on the short-term change of endothelial cells, suggesting cataract surgery can be conducted with a staged approach when the density of nucleus is moderate or less dense. J Korean Ophthalmol Soc 2011;52(4):434-441

롤투롤 인쇄공정 적용을 위한 차세대 나노입자 소결 기술

이은경,은경태,안영석,김용택,천민우,좌성훈,Lee, Eun Kyung,Eun, Kyoungtae,Ahn, Young Seok,Kim, Yong Taek,Chon, Min-Woo,Choa, Sung-Hoon 한국마이크로전자및패키징학회 2014 마이크로전자 및 패키징학회지 Vol.21 No.4

Recently, a variety of printing technologies, including ink jet, gravure, and roll-to-roll (R2R) printing, has generated intensive interest in the application of flexible and wearable electronic devices. However, the actual use of printing technique is much limited because the sintering process of the printed nanoparticle inks remains as a huge practical drawback. In the fabrication of the conductive metal film, a post-sintering process is required to achieve high conductivity of the printed film. The conventional thermal sintering takes considerable sintering times, and requires high temperatures. For application to flexible devices, the sintering temperature should be as low as possible to minimize the damage of polymer substrate. Several alternative sintering methods were suggested, such as laser, halogen lamp, infrared, plasma, ohmic, microwave, and etc. Eventually, the new sintering technique should be applicable to large area, R2R, and polymer substrate as well as low cost. This article reviews progress in recent technologies for several sintering methods. The advantages and disadvantages of each technology will be reviewed. Several issues for the application in R2R process are discussed.

브라운다리 근사를 통한 확산모형의 우도 근사법

이은경,심송용,이윤동,Lee, Eun-kyung,Sim, Songyong,Lee, Yoon Dong 한국통계학회 2015 응용통계연구 Vol.28 No.5

확산모형은 입자의 운동현상과 금융자산의 미시적 가격변동을 설명하기 위하여 사용되는 수리적 모형이다. 확산모형의 추정방법에 관한 논의는 다양한 분야에서 이루어져 왔다. 통계학적 관점에서 우도적 방법에 기반한 확산모형의 추정방법을 개발하려는 시도가 계속되어 왔다. 이산시간 간격으로 관측된 자료를 이용하여 확산모형을 추정할 때 최대우도 추정법을 적용하기 위해서는 확산모형에 대한 전이확률 밀도함수를 구해야 한다. 본 연구에서는 확산모형의 전이확률밀도를 근사하기 위하여, 정규분포를 따르는 확률변수를 이용하여 브라운다리 확률과정에 대한 경로적분을 대체하는 방법을 제안하고, 그 수치적 성질을 다른 방법들과 비교한다. Diffusion is a mathematical tool to explain the fluctuation of financial assets and the movement of particles in a micro time scale. There are ongoing statistical trials to develop an estimation method for diffusion models based on likelihood. When we estimate diffusion models by applying the maximum likelihood estimation method on data observed at discrete time points, we need to know the transition density of the diffusion. In order to approximate the transition densities of diffusion models, we suggests the method to approximate the path integral of the random process with normal random variables, and compare the numerical properties of the method with other approximation methods.

얼랑분포의 축차확률비검정과 관련된 적분 방정식의 해

이은경,나명환,이윤동,Lee Eun-Kyung,Na Myung Hwan,Lee Yoon-Dong 한국통계학회 2005 응용통계연구 Vol.18 No.1

본 연구에서는 얼랑(Erlang)분포의 규모모수에 대 한 축차확률비검정(SPRT)과 관련된 적분방정식의 정학한 해를 구하는 법을 살펴보기로 한다. 축차확률비검정에서 그 평균 표본 개수, 그리고 1종 오류 확률과 2종 오류 확률은 프레돔 형태의 적분 방정식으로 나타나게 된다. 이러한 적분 방정식은 보통 가우시안 쿼드러쳐(qudrature)를 이용하여 근사적으로 그 해를 구하는 것이 일반적이다. 얼랑분포의 경우 이러한 적분방정식의 해가 정확하게 구할 수 있음이 알려져 있다. 본 연구에서는 얼랑분포에서 그 해를 구하는 구체적 방법을 살펴보기로 한다. In this paper, we propose a method to evaluate the solutions of the renewal equations related to SPRT for Erlang distribution. In SPRT, the Average Sample Number(ASN) and type I or type II error probabilities are shown in Fredholm type integral equations. The integral equations are generally solved by the approximation method using Gaussian quadrature. For Erlang distribution, it has been known that the exact solutions of the equations exist. We propose the algorithm to solve the equations.

단일항 안장점근사법에 의한 확산모형의 추정

이은경,이윤동,최영수,Lee, Eun-Kyung,Lee, Yoon-Dong,Choi, Young-Soo 한국통계학회 2010 Communications for statistical applications and me Vol.17 No.3

최근 확산모형의 추정을 위한 매우 다양한 방법론들이 제시되고 연구 되어 왔다. 본 연구에서는 제안된 확산모형의 추정 방법 중에서, 안장점근사법을 이용한 확산모형의 모수 추정방법에 대하여 살펴보게 되고, 가장 단순한 형태의 안장점근사법인 단일항 안장점근사법의 사용을 제안하게 된다. 단일항 안장점근사법은 오일러근사법과 마찬가지로 계산속도가 빠르고, 다양한 모형에 적용이 가능하면서도 최대우도추정량과 마찬가지로 성능이 우수한 특성을 갖고 있음을 살펴보게 된다. OU 확산모형을 대상으로 한 시뮬레이션 연구를 통하여 단일항 안장점근사를 이용한 추정량과 다른 추정량들과의 성질을 비교한다. Recently various methods were suggested and reviewed for estimating diffusion processes. Out of suggested estimation method, we mainly concerns on the estimation method using saddlepoint approximation method, and we suggest a term saddlepoint approximation(ASP) method which is the simplest saddlepoint approximation method. We will show that ASP method provides fast estimator as much as Euler approximation method(EAM) in computing, and the estimator also has good statistical properties comparable to the maximum likelihood estimator(MLE). By simulation study we compare the properties of ASP estimator with MLE and EAM, for Ornstein-Uhlenbeck diffusion processes.

집단 약동학 모형을 위한 모형 진단과 적합도 검정에 대한 고찰

이은경,Lee, Eun-Kyung 한국통계학회 2012 응용통계연구 Vol.25 No.1

집단 약동학 모형 추정의 결과는 환자에게 투약학 약물의 용량결정에 직접적 영향을 미치므로 추정 모형에 대한 타당도와 적합도의 검증이 중요하다. 본 논문에서는 다양한 집단 약동학 모형 적합도 검증을 위한 방법들을 비교, 분석하고 실제 임상자료를 이용하여 최적의 집단 약동학 모형을 찾고 이에 대하여 다양한 타당도, 적합도 검정을 실시하여 모형을 진단해 본다. The result of the analysis of a population pharmacokinetic model can directly influence the decision of the dose level applied to the targeted patients. Therefore the validation procedure of the final model is very important in this area. This paper reviews the validation methods of population pharmacokinetic models from a statistical viewpoint. In addition, the whole procedure of the analysis of population pharmacokinetics, from the base model to the final model (that includes various validation procedures for the final model) is tested with real clinical data.

실시간 손 인식 기법을 인용한 건반 연주 시스템

이은경,하정희,서은성,박소영,김성훈,Lee, Eun-Kyung,Ha, Jung-Hee,Seo, Eun-Sung,Park, So-Young,Kim, Seong-Hoon 한국정보통신학회 2009 한국정보통신학회논문지 Vol.13 No.11

As parents are interested in music education for infants in these days, they require systems to help these infants to actively play music. In this paper, we propose a keyboard solo system using a real time hand recognition method. In order to enable the infants to use the system easily, the proposed system plays some sounds whenever the infants move their fingers on a paper piano. For the purpose of minimizing cost to play music, the proposed system utilizes a general PC with only a paper piano, a web camera, and a speaker. With the aim of precisely and efficiently recognizing both a hand and each key on keyboard, the proposed system divides a recognition step into a hand recognition step and a keyboard recognition step. Also, the hand recognition step considers only skin color, and the keyboard recognition step considers only black and white without other colors. 요즘 부모들이 유아들의 음악 교육에 대해서 관심이 많아지면서, 유아들이 능동적으로 음악을 즐길 수 있도록 지원하는 시스템이 요구되고 있다. 따라서 본 논문에서는 실시간 손 인식 기법을 이용한 건반 연주 시스템을 제안한다. 제안하는 시스템은 유아들이 쉽게 사용할 수 있도록, 종이 건반위에서 손가락을 움직이기만 하면 음원이 재생되어 연주하는 환경을 제공한다. 그리고, 제안하는 시스템은 연주에 필요한 비용을 최소화하기 위해서, 보급형 컴퓨터와 종이건반, 웹 카메라, 스피커만을 이용한다. 또한, 효율적이고 정확하게 건반과 손가락을 인식하기 위해서, 건반 인식 단계와 손가락 인식 단계를 구분한다. 건반 인식 단계에서는 건반을 구성하는 검정색과 흰색만 고려하여 건반을 인식하고, 손가락 인식단계에서 는 피부색만 고려하여 손가락을 인식한다.