조기심실수축으로 현훈 및 흉부 불편감을 호소하는 환자에 대한 가감삼령백출산의 효과 증례보고 1례

조재현,홍미나,박혜림,최진용,배고은,이인,권정남,한창우,김소연,최준용,박성하,윤영주,홍진우,Cho, Jae-hyun,Hong, Min-na,Park, Hye-lim,Choi, Jin-yong,Bae, Go-eun,Lee, In,Kwon, Jung-nam,Han, Chang-woo,Kim, So-yeon,Choi, Jun-yong,Park, Seong-ha 대한한방내과학회 2016 大韓韓方內科學會誌 Vol.37 No.5

Objective: To examine the effects of Gagam-Samryoungbeakchul-san (加減 蔘?白朮散) on a premature ventricular contraction patient with dizziness and chest discomfort. Methods: A patient diagnosed with premature ventricular contraction was treated with herbal medicine and acupuncture. The period of admission was 15 days, and we measured the electrocardiogram before and after treatment. We evaluated the improvement in symptoms by Global Assessment (G/A), and checked the pulse rate by oximetry three times a day. We estimated the efficacy of treatment by analyzing the relationship between the average pulse rate and symptoms. Results: After Gagam-Samryoungbeakchul-san treatment and acupuncture therapy, the average pulse rate increased from 36.5 to 58. This increase in average pulse rate was accompanied by a reduction in dizziness of 40%, chest discomfort of 30%, and frequency of bigeminy in the electrocardiogram. Conclusions: This case report confirmed the effectiveness of Gagam-Samryoungbeakchul-san on premature ventricular contraction, but further study is warranted.

추계학적 계획모형을 이용한 하천수질관리

조재현,Cho, Jae Heon 대한토목학회 1994 대한토목학회논문집 Vol.14 No.1

A stochastic programming model for river water quality management was developed. River water quality, river flow, quality and flowrate of the wastewater treatment plant inflow were treated as random variables in the model. Withdrawal for water supply and submerged weir reaeration were included in the model itself. A probabilistic model was formulated to compute the expectation and variance of water quality using Streeter-Phelps equation. Chance constraints of the optimization problem were converted to deterministic equivalents by chance constrained method. Objective function was total annual treatment cost of all wastewater treatment plants in the region. Construction cost function and O & M cost function were derived in the form of nonlinear equations that are functions of treatment efficiency and capacity of treatment plant. The optimization problem was solved by nonlinear programming. This model was applied to the lower Han River. The results show that the reliability to meet the DO standards of the year 1996 is about 50% when the treatment level of four wastewater treatment plants in Seoul is secondary treatment, and BOD load from the tributary inflows is the same as present time. And when BOD load from Tanchon, Jungrangchon, and Anyangchon is decreased to 50%, the reliability to meet the DO standards of the year 1996 is above 60%. This results indicated that for the sake of the water quality conservation of the lower Han River, water quality of the tributaries must be improved, and at least secondary level of treatment is required in the wastewater treatment plants. 본 연구에서는 하천본류의 유량과 수질, 하수처리장 유입수량과 유입수질을 확률변수로 두고, 취수 문제와 수중보에 의한 재포기현상을 포함하는 추계학적 하천수질관리모형을 개발하였다. Streeter-Phelps식을 이용해서 각 구간 하천수질의 기대값과 분산을 계산하는 확률모형을 만들고, 최적화문제의 확률적 제약식은 chance constrained 방법을 이용해서 확정적 제약식으로 변환한다. 목적함수는 지역내 하수처리장의 년간처리비용으로 두었다. 건설비용함수와 유지관리비함수는 처리효율과 처리용량의 함수인 비선형의 단일식으로 유도되었다. 최적화문제는 비선형계획법으로 해를 구하였다. 본 모형을 한강하류부에 적용한 결과 서울시내 4개 하수처리장에서 2차처리를 하고, 지천유입수의 BOD부하량이 현재와 같을 때, 1996년 DO수질기준을 만족하는 신뢰도는 50% 정도였다. 그리고 탄천, 중량천, 안양천의 BOD부하량을 현재보다 50% 감소시켰을 때 1996년 DO수질기준을 만족하는 신뢰도는 60% 이상이었다. 따라서 한강하류부의 수질보전을 위해서는 유입지천의 수질개선과 2차처리 이상의 하수처리가 요구된다.

Plasma Paste Boronizing법에 의한 Ni-Cr-Mo강의 붕화물층 생성거동과 내 토사마모특성에 관한 특성

조재현,박학균,손근수,윤재홍,김현수,김창규,Cho J. H,Park H. K,Son K. S,Yoon J. H,Kim H. S,Kim C. G 한국재료학회 2004 한국재료학회지 Vol.14 No.1

The surface property and formation behavior of a boride layer formed on Ni-Cr-Mo steel in a plasma paste boronizing treatment were investigated. The plasma paste boronizing treatment was carried out at 973~1273 K for 1-7 hrs under the gas ratio of Ar:H$_2$ (2:1). The thickness of the boride layer increased with increasing temperature and time in the boronizing treatment. The cross-section of the boride layer was a tooth structure and the hardness was Hv 2000~2500. XRD analysis revealed that the compound was identified as FeB, $Fe_2$B, and mixed phase of FeB/$Fe_2$B in the boride layer formed at 973~1073 K, 1173K, and 1273K, respectively. The Ni-Cr-Mo alloy boronized at 1173-1273 K showed the best excellent wear resistance against the sand. As a results of corrosion test in 1 M $H_2$$SO_4$ solution, $Fe_2$B formed on the matrix alloy exhibited higher corrosion resistance than FeB.

보행장애 및 현훈을 호소하는 진행성 핵상마비 환자 치험 1례

조재현,박혜림,홍미나,이혜윤,이지혜,김소연,최준용,한창우,윤영주,박성하,홍진우,이인,권정남,Cho, Jae Hyun,Park, Hye Lim,Hong, Minna,Lee, Hye Yoon,Lee, Ji Hye,Kim, So Yeon,Choi, Jun Yong,Han, Chang Woo,Yun, Young Ju,Park, Seong Ha,Hong, Jin W 대한중풍순환신경학회 2015 대한중풍.순환신경학회지 Vol.16 No.1

■ Objectives The purpose of this case report is to show the effect of korean medicine on a progressive supranuclear palsy patient with gait disturbance and dizziness. ■ Methods A patient with gait disturbance and dizziness diagnosed as progressive supranuclear palsy was treated with herbal medicine, acupuncture, electro-acupuncture, moxibustion. The period of admission is 16 days and we evauated the improvements of symptoms by the Unified Parkinson's Disease Rating Scale(UPDRS), Numeric Rating Scale(NRS) and Global Assessment(G/A). ■ Results After taking Modified Bosimhwan andbeing treated by acupuncture therapy, improvements of gait disturbance and dizziness are observed. ■ Conclusion This case report proved the effect of Korean medicine on progressive supranuclear palsy.

비골화성 섬유종 및 섬유성 피질골 결손의 새로운 진단적 소견

조재현,이기범,서정호,김대웅,김병석,Cho, Jae-Hyun,Lee, Kyi-Beom,Suh, Jung-Ho,Kim, Dae-Woong,Kim, Byoung-Suck 대한근골격종양학회 1999 대한골관절종양학회지 Vol.5 No.3

비골화성 섬유종에서 피질골 관(cortical tract)과 개구관(opening tract), 섬유성 피질골 결손에서 피질골내 병소의 존재는 두 병소의 형태학적인 중요한 특징이며, 이 질환을 진단하는데 중요한 단서로 활용될 수 있으리라 사료된다. This study was performed to document the morphologic relationships between non-ossifying fibroma (NOF) and fibrous cortical defect (FCD), as well as to determine any new diagnostic clues. Eighteen patients with 21 NOFs and 14 patients with 15 FCDs found incidentally on radiography were included. The authors prospectively performed CT, MRI, or both on all subjects. The study included size, location, sclerotic property and contour of the periphery, as well as calcification of the matrix of the lesions and the distance from the lesion to the growth plate. The morphologic characteristics were thoroughly reviewed focusing on the presence of the cortical tract in the lesions. The size of the lesion and the distance from the growth plate were not correlated with the patient' age. The presence of the cortical tract was noted in 18(85.7%) out of 21 NOFs, and 10(66.7%) out of 15 FCDs. The presence of the cortical tract was correlated with the longitudinal length of the lesion and the distance from the growth plate. The presence of the cortical tract may be one of the important characteristics in NOF and FCD, and if the diagnosis of bony lesions is obscure by radiologic finding, its exsitence may be a good indicator of diagnosis for NOF or FCD.

망막 세포 특성에 의한 영상인식에 관한 연구

조재현,김도현,김광백,Cho, Jae-Hyun,Kim, Do-Hyeon,Kim, Kwang-Baek 한국정보통신학회 2007 한국정보통신학회논문지 Vol.11 No.11

최근 시각 장애인을 위한 인공망막 모델 구현에 관한 연구 중 시피질 자극기 기술은 시각 자극 전달의 중간 단계를 생략하고 직접 뇌세포를 자극하는 것이다. 본 논문에서는 망막에서 시각 피질로 시각정보를 전달할 때 발생하는 시각 피질의 특성, 즉 방향성에 대한 반응 특성을 특징 데이터로 구성하여 인식함으로써 인간 시각 정보 처리와 유사한 영상 추출 및 인식 모델을 제안한다. 제안된 방법은 영상의 특징을 추출 한 후 Delta-bar-delta 기반 오류 역전파 알고리즘을 적용하여 영상의 특징들을 인식한다. 제시된 방법의 성능을 분석하기 위하여 다양한 숫자 패턴들을 대상으로 실험한 결과, 제안된 망막 세포로부터 전달된 정보를 방향성에 대한 민감성을 고려하여 영상의 특성을 추출하여 인식하는 모델이 기존의 영상 추출 및 인식 모델보다 인식률에 있어서는 별 차이가 없지만 다양한 실험에서 확인할 수 있듯이 인간 시각과 같이 인식 성능이 민감하지 않는 것을 알 수 있었다. Visual Cortex Stimulator is among artificial retina prosthesis for blind man, is the method that stimulate the brain cell directly without processing the information from retina to visual cortex. In this paper, we propose image construction and recognition model that is similar to human visual processing by recognizing the feature data with orientation information, that is, the characteristics of visual cortex. Back propagation algorithm based on Delta-bar delta is used to recognize after extracting image feature by Kirsh edge detector. Various numerical patterns are used to analyze the performance of proposed method. In experiment, the proposed recognition model to extract image characteristics with the orientation of information from retinal cells to visual cortex makes a little difference in a recognition rate but shows that it is not sensitive in a variety of learning rates similar to human vision system.

수천을 동반한 뇌교출혈 환자의 한의학적 치료 증례보고 1례

조재현,배고은,최진용,서희정,심소현,한창우,김소연,최준용,박성하,윤영주,이인,홍진우,권정남,Cho, Jae-hyun,Bae, Go-eun,Choi, Jin-yong,Seo, Hee-jeong,Shim, So-hyun,Han, Chang-woo,Kim, So-yeon,Choi, Jun-yong,Park, Seong-ha,Yun, Young-ju,Lee, In 대한한방내과학회 2017 大韓韓方內科學會誌 Vol.38 No.5

Objectives: We examined the effects of Sinbi-tang on a patient with pontine hemorrhage and respiratory disturbance. Methods: A patient diagnosed with pontine hemorrhage and respiratory disturbance was treated with herbal medicine and acupuncture. We checked the peripheral oxygen saturation ($SpO^2$) by oximetry three times a day, and obtained an average value. We evaluated the improvement of symptoms by changes in the average applied $O^2$ and average $SpO^2$. Results: After taking Sinbi-tang and treatment with acupuncture therapy, the patient showed improvement in respiratory disturbance. Applied $O^2$ was gradually decreased from 4 L/min to 0 L/min and $SpO^2$ was stabilized. Conclusions: Korean medicine may provide effective treatment for respiratory disturbance in patients with pontine hemorrhage, but further study is needed.

방향정보처리에 의한 영상 인식에 관한 연구

조재현,김진환,이종희,Cho, Jae-Hyun,Kim, Jin-Hwan,Lee, Jong-Hee 한국정보통신학회 2009 한국정보통신학회논문지 Vol.13 No.11

인간의 시각정보처리는 망막에서 입력된 영상을 시각피질에 전달될 때 많은 특성을 가지고 있다. 그 중에서 확대성질과 방향성에 대한 민감도를 분석하여 영상인식에 미치는 영향을 분석하고자 한다. 확대성질은 중심와의 영역이 시각피질에서 확대영역으로 할당되는 사실을 확대배율이라고 부른다. 방향수직반응의 가중치와 수평 및 대각선반응의 가중치를 여러 가지로 변동하여 영상의 인식률을 비교함으로써 수직반응 정도에 매우 민감함을 보이며 차후 인간시각모델 구성에 적용하고자 한다. There are a lot of characteristics in Human visual information processing when image information is transmitted from retina to visual cortex. Among them, we analyze the sensibility of the orientation and cortical magnification on an image. The fact that the small fovea is allotted a large area on the cortex is called the cortical magnification factor. We compare recognition rates by weight of vertical, horizontal and diagonal response. In statistics analysis, we show that a particular simple cell responds best to a bar with a vertical orientation. After then, we will apply the characteristics to Human visual system.

색상히스토그램 클러스터링을 이용한 심리분석

조재현,Cho, Jae-Hyun 한국전자통신학회 2013 한국전자통신학회 논문지 Vol.8 No.3

현재 색상에 관한 인간의 감성과 심리상태에 많은 연구가 진행 중이다. 그중에서 아동의 그림은 자신의 감정을 표출하는 수단이 될 수 있다. 그림에 사용된 색채와 그림의 위치는 무의식적으로 자신의 내면 심리 상태를 나타내는 경우가 많다. 본논문에서는 아동의 그림에 대한 심리를 분석하기 위하여 색채정보와 위치정보를 추출하는 방법을 제안한다. 색채정보는 히스토그램 클러스터링을 이용하여 추출하고 위치정보는 에지 정보를 구한 뒤 9등분 된 영역 내부의 에지 양을 계산하여 추출하였다. 색채정보와 위치정보에 따른 심리상태를 분석한 결과 일반적인 심리분석과 별 차이가 없음을 알 수 있었다. In recent, many researches have been studying sensitivity and psychology of human on color. Among them, a picture of children can be a tool to represent their emotion. Information of colors and direction on a child's picture often represent his internal psychological states unconsciously. In this paper, we propose the method that extract the color and direction information in order to analyze the psychology in the picture of children. Histogram clustering is used for color information detection. Direction information extract from inner edge value. In the result of experiments, we shows that our method is similar to the pattern classification of the general method.

퍼지 추론 기법을 이용한 색상 추출과 심리 분석

조재현,Cho, Jae-Hyun 한국전자통신학회 2015 한국전자통신학회 논문지 Vol.10 No.3

최근에 색상에 관한 인간의 감성과 심리상태에 대한 많은 연구가 진행 중이며 색채 심리 치료의 필요성이 급증하고 있다. 그중에서 아동의 그림은 자신의 감정을 표출하는 수단이 될 수 있다. 그림에 사용된 색채는 무의식적으로 자신의 내면 심리 상태를 나타내는 경우가 많고 또한 색채의 밝기에 따라 심리상태가 다르다. 본 논문에서는 퍼지추론을 사용하여 색채이미지 공간 순색의 분류 및 밝기 정도에 따른 세분화를 통해 주조색을 추출하는 방법을 제안하고 실험을 통하여 아동 그림에서의 주조색에 따른 심리적 의미를 분석할 수 있음을 보이고자 한다. In recent, many researches have been studying sensitivity and psychology of human being on color and the necessity of psychology therapy by color. Among them, a picture of children can be a tool to represent their emotion. Information of colors and direction on a child's picture often represent his internal psychological states unconsciously and is different from the brightness of a color. In this paper, we propose a method to extract domain colors by color classification and subdivision the classes of brightness using fuzzy inference. In addition, it is shown that our method is used for analysing the psychology status of children through their pictures.