• 한국지형공간정보학회:학술대회논문집
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• 2002.03a
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• pp.145-149
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• 2002

CORONA는 미국이 1960년에서 1972년까지 냉전시대 관심지역에 대한 첩보영상을 취득하기 위하여 운영한 영상취득시스템으로 1995년 일반에 자료가 공개됨에 따라 과거의 고해상도 영상자료를 이용할 수 있는 길이 열리게 되었다. 그러나 현재까지 CORONA 영상처리를 위한 모듈을 제공하는 원격탐측 소프트웨어가 개발되어 있지 않기 때문에 CORONA 영상을 이용하여 수치표고모형이나 정사영상을 제작하기 위해서는 적절한 모델링 방법이 필요하다. CORONA 영상은 파노라마 영상으로 필름 가장자리로 갈수록 왜곡이 많이 생기며 사진기 지표가 없고 위성의 궤도와 위치, 자세, 속도, IMC(Image Motion Compensation)에 대한 자세한 자료를 제공하지 않는 문제점이 있다. 따라서 본 논문에서는 지형복원을 위하여 지상기준점을 이용하는 2가지 모델링 방법을 이용하였다. 첫 번째는 파노라마 왜곡과 촬영 비행체 이동에 의한 왜곡, IMC에 의한 왜곡을 보정하는 모형식을 구성하여 이용하였으며, 두 번째는 위성과 센서에 대한 정보를 필요로 하지 않는 다항식비례모형(RFM; Rational Function Model)을 이용하였다. 대상지역은 서울지역의 입체영상으로 대략 $33km{\times}26km$ 지역이다. 영상은 지상해상도 약 2.7m로 스캐닝하였고 1:1000 수치지도를 통해 20개의 기준점과 36개의 검사점을 관측하였다. 검사점의 위치정확도를 평가해 본 결과 첫 번째 방법은 수평방향으로 평균 3.9m(X), 2.8m(Y)의 오차를 보였으며 표고의 경우 4.2m의 오차를 보여주었다. 두 번째 방법은 수평방향으로 평균 3.2m(X), 2.8m(Y)의 오차를 보였으며 표고의 경우 5.5m의 오차를 보여주었다. 지형복원 정확도를 검증하기 위하여 첫 번째 방법을 이용하여 대상지역 중 일부인 서울 남산지역에 대해 정사영상과 10m간격의 DEM을 제작하였으며 1:1000 수치지도를 통해 제작된 DEM과 비교한 결과 총 43990개 격자점의 표고 차이는 평균 5.98m였다.

• Korean Journal of Applied Biomechanics
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• v.19 no.3
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• pp.529-538
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• 2009

The purpose of this study was to investigate correlation between BBS(Berg balance scale), SPPB(short physical performance battery,) TUG(timed up and go) and COP(center of pressure) during quiet standing in elderly women. Ten elderly women aged 65 to 75 years participated in this study. Subjects were measured physical functional test and they were stood in quiet stance on force platform positioned in one of three different fixed positions(flat, downward, upward). The COP range and mean velocity data were calculated using an experimental setup with the ground reaction force system. COP range and mean velocity of AP direction showed significant more expanded than ML direction of all slope types. Physical performance scores were significant correlated between COP range and mean velocity according to surface slopes. After all elderly women get high score of physical performance that brought decreased on one's COP range and mean velocity. This study suggests that clinical therapist have application to COP parameters as well as BBS, SPPB, TUG of balance assessment in elderly women.

• The Journal of the Korean life insurance medical association
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• v.25
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• pp.103-118
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• 2006

근래에 한국의 생명보험 시장에는 주요 질병의 보장을 위한 상품들이 연일 쏟아져 나오고 있다. 그러나 이와 함께 증가될 수 있는 리스크에 대한 대비는 상대적으로 부족한 실정이다. 특히 간질환에 의한 급부발생이 타질환에 비하여 현격하게 높은 국내 실정에 맞게 언더라이팅 초점이 맞추어져야 할 필요가 있다. 간질환 유발인자로 대표적인 것은 B형 간염이지만, 과다한 알코올 섭취에 의한 간질환 역시 매해 빠른 속도로 증가하는 추세이다. 따라서 본 논문에서는 알코올에 의한 질환의 종류와 이와 관련된 보험금 청구 통계, 그리고 음주로 인한 교통사고의 폐해에 대해 살펴보고, 알코올 남용자를 사전에 판별할 방법을 찾아보고자 한다. 일반적으로 알려져 있는 알코올 관련 질환으로는 지방간, 알코올성 간염, 알코올성 간경변이 있으며, 이로 인한 급부발생율은 급격히 증가하고 있다. 음주로 인한 폐해는 단순히 간질환에 그치지 않고 있으며, 교통사고의 상당수가 음주와 관련이 되어있다. 이러한 리스크에 대해 국내의 상당수 보험사들은 혈액검사를 통하여 간기능에 대한 기준을 설정하여 언더라이팅을 하고 있다. 현재 주로 시행되고 있는 간기능 검사들에 대한 정확도에 대해서는 논란이 있을 수 있다. 따라서 보다 정밀한 검사법들에 대한 연구가 필요할 것이다. 외국의 경우, 보험을 가입하고자 하는 보험 대상자들은 직업이나 흡연, 위험 취미뿐만 아니라 알코올과 관련된 일정한 양식의 질문표에 대하여 성실하게 고지하도록 하고 있다. 국내에도 알코올과 관련된 자세한 고지항목을 첨부하여, 일정 기준에 미치지 못하는 가입자에 대하여 표준미달체로 분류하여 보다 정밀한 검진을 통해 세밀한 언더라이팅이 이루어져야 하겠다. 이와 아울러, 알코올로 인한 사회적 폐해의 심각성에 대한 인식 확대를 위한 각 보험사 및 유관기관의 노력이 전개된다면, 음주에 대한 진사 절차가 수월해질 것으로 기대된다.

• Korean Journal of Clinical Laboratory Science
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• v.50 no.2
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• pp.211-215
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• 2018

The aim of this study was to preserve the corticospinal tract during surgery and assess more accurately the motor performance in brain tumor patients around the motor cortex. TceMEP is not entirely reliable, even though there has been no change in waveforms due to a mixture of false positive and false negative signals. For a more detailed examination, DCS was employed to selectively stimulate the motor cortex. In both cases, the indications could find the region to which the cortex was responsible, and constantly check and examine the changes in amplitude, thereby preserving the motor pathway and performing surgery. On the other hand, patients who did not implement the DCS but did implement the TceMEP experienced a decrease in their postoperative motor performance. DCS is a very useful examination and it is a method that can reduce the post-surgery disorder that may occur in patients with the TceMEP in brain tumor surgery.

• Clinical and Experimental Pediatrics
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• v.45 no.9
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• pp.1065-1074
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• 2002

Purpose : The purpose of this study is to analyze the epidemiologic characteristics of sudden unexpected death in infancy and to evaluate the importance of postmortem autopsy. Methods : We reviewed, retrospectively, medical records of 34 infants admitted to Kangnam General Hospital from January 1987 to December 2001 because of sudden unexpected death. We investigated the cause of death through medical history, death scene examination, autopsy findings, acylcarnitine and organic acid analysis. Results : Among the total 34 infants, 18 were male(52.9%) and 16 were female(47.1%). Thirty infants(88%) were below the six months of age. Winter was the most affected season(38.2%). Eighteen infants(52.9%) died between 6 and 12AM. The prone sleeping position was observed more frequently than the supine position at death; nine cases in the prone position, six cases in the supine position. The cause of death of 23 cases could not be found by only history and death scene examination. Autopsy was done in 13 cases. Seven cases of them were thought to be SIDS. In six cases, we explained the cause of death with autosy findings. They were an endocardial fibroelastosis, a nesidioblastosis, a subdural hematoma, a bronchopneumonia and two fatty changes of liver. Metabolic screening tests performed in three cases to rule out metabolic disorder since 2000 were all normal. Conclusion : We concluded that autopsy and metabolic screening test should be performed to find out the cause of death in sudden unexpected death in infancy.

• Journal of the Korea Convergence Society
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• v.11 no.2
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• pp.53-60
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• 2020

The purpose of this paper is to evaluate the image of the Styrofoam Wedge that can minimize the position change by supporting the wrist during the True PA and lateral examination of the wrist. In 50 people, the gap between the distal radius joint facet and the wrist bone was measured after the wrist True PA and lateral images were obtained using a general examination(vertical), tube angle(vertical:10°, lateral:20°) and Styrofoam Wedge(vertical). When joint spacing was measured in the True PA and lateral images of the wrist, general examination(5.54mm, 9.42mm), tube angle(2.05mm, 5.07mm) and Styrofoam Wedge(1.79mm, 5.46mm) were shown to be small. The smaller the joint spacing, the easier it is to observe that is open. Therefore, True PA and lateral imaging of the wrist Styrofoam Wedge can reduce the distortion of the image and thus acquire images of high diagnostic value. In addition, it may be possible to reduce the deviation caused by the change of patient's position during re-projection.

• The Journal of Korean Physical Therapy
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• v.11 no.3
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• pp.151-158
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• 1999

Neuropathy is a common and often debilitating complication of diabetes, Diabetic peripheral neuropathy(DN) includes a variety of different disorders that affect the peripheral nervous system. The most common type of DN is the predominantly sensory distal polyneuropathy. Typically, symptoms begin in the foot and proximally during the course of the discease, reflecting the fact that longer fibres are involved earlier that shorter ones. Reviewed the pathogenesis, the diagnosis of DN, the gait pattern and the excercise, the treatment of pain in DN patient.

• Journal of The Korean Association of Information Education
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• v.11 no.3
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• pp.349-358
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• 2007

This study is to develop a web-based career guidance system to be a help making a decision on one's occupation, which is important for a person's life. As career development education for higher grades of elementary school aims at providing basic knowledge necessary for career choice and forming a basic attitude toward occupation and values, it is desirable to carry out the guidance of a variety of occupations on the basis of personal interest and aptitude of individual students. Previously, however, most studies have remained at the level where simply test results are notified. Therefore, the study administered a career development test fit for higher grades of elementary school who are at the stage of potential career choice and developed a web-based career guidance system in which suitable occupation types are advised of based on the results. Beyond notifying test results, the developed career guidance system presents 3 excellent intelligences, rather than converting test results into scores. Thus, it is expected that the system will help students understand their areas of excellent intelligence, efficiently study related occupation types and duties, and learn to have awareness and make a better decision in relation to their career.

• The Journal of the Korea Contents Association
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• v.8 no.9
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• pp.194-203
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• 2008

CIMT(Constraint Induced Movement Therapy) is to improve the function and use of damaged upper limbs by not only confinement of unaffected limbs' exercise but also inducement of affected limbs' one. The purpose of the study is to verify the effect of CIMT by means of motor behaviour test and immunohistochemistry, using animal models. This study was analyzed using 40 male Sprague-Dawley rats as the experimental groups and 40 ones as the control groups. The rats were divided into two random groups : one group as an experimental group which was operated on under anesthesia and removed somatomotor regions with CIMT and the other as the control group without CIMT.Postural Reflex Test, Beam Walking Test, Limb Placement Test and Immunohistochemistry were run on the day 1, 3 , 7 and day 14 following surgery to each 10 rat. As a result, this study demonstrates that CIMT might be an effect method to verify the plasticity of central nervous system as motor behaviour test made all high scores (p<.05) and BDNF was high too in experimental groups.

• Korean Journal of Clinical Laboratory Science
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• v.51 no.2
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• pp.270-275
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• 2019

The incidence of degenerative valve disease also increasing with the increasing life expectancy of the elderly population. Rheumatic valve disease is decreasing gradually and the incidence of calcified degenerative aortic stenosis (AS) is growing. Echocardiography is a very important tool for evaluating the prognosis and treatment method as well as the time of operation and diagnosis of heart valve disease. When evaluating valvular heart disease, 2-dimensional echocardiography, which observes all heart valves in detail, should take precedence. Understanding the clinical findings of degenerative valve disease and performing precise echocardiography are extremely important. In addition, an assessment of the severity of aortic stenosis is necessary to determine the surgical indications. An assessment of the severity by echocardiography was explained with three cases of degenerative aortic stenosis. To perform echocardiography accurately, it is necessary to understand degenerative valve disease and its clinical findings accurately.