• 대한방사선기술학회지:방사선기술과학
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• 제28권2호
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• pp.97-103
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• 2005

목 적 : 본 연구에서는 표준인 AP-WB(Weight-Bearing AP) 촬영법과 MTP(Semiflexed or metatarsophalangeal) 촬영법을 소개하고 판독 시 중요하게 여기는 관절간격과 신생골 묘출에 따른 항목을 각각 비교 고찰하여 골관절염 환자의 진단율을 향상시키고자 한다. 대상 및 방법 : 2004년 1월에서 2005년 1월까지 Knee Pain이 있는 환자로 본원의 류마티스내과에 내원한 220명(남:38명, 여:182명, 평균연령:57.3세)의 환자를 대상으로 표준인 AP-WB와 MTP검사를 병행하여 실시하였다. MTP검사는 20명의 모의환자로 발의 위치를 확인하며 슬개골이 슬관절부 정중앙에 위치하고, 관절강의 좌우대칭이 일치하도록 하였다. 관절간격과 신생골을 0(나쁨), 1(보통), 2(좋음), 3(아주좋음)점으로 구분하여 정형외과의사 3명, 류마티스 내과의사 2명, 방사선과 전문의 3명, 방사선사 5명이 PACS 모니터에서 영상을 Blind test하였다. 장비는 PHILIPS(Buckey Diagnostic-TH)를 사용하였고, 100 cm거리에서, 60 Kv, 8 mAs로 설정하였다. 결 과 : 위 방법으로 다음과 같은 결과를 얻을 수 있었다. 1. MTP 촬영법 : 발을 바깥쪽으로 $15^{\circ}$회전하고 무릎을 구부려 카세트 면에 대면 슬개골이 슬관절부의 정중앙에 위치하였고,관절강의 정렬에 따른 좌우대칭이 일치하였다. 2. 관절간격 점수 : AP-WB 촬영법; $1.32{\pm}0.050$, MTP 촬영법; $2.51{\pm}0.046$ 3. 신생골 점수 : AP-WB 촬영법; $2.14{\pm}0.054$, MTP 촬영법; $2.10{\pm}0.054$ 결론 및 고찰 : 이번 연구는 임상적인 판독 방법으로 관절간격과 신생골에 따른 점수를 비교 했을 때, MTP 촬영법이 가장 중요한 관절간격을 영상으로 표출하는데 있어서 기존의 AP-WB 촬영법보다 훨씬 더 우세하다는 결론을 갖게 되었다. 따라서 향후 골관절염 환자의 진단율을 향상시키는 데는 MTP촬영법이 유용할 것으로 사료된다.

• 한국콘텐츠학회논문지
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• 제8권12호
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• pp.109-117
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• 2008

본 연구는 극장용 애니메이션 관객의 집단별 관람동기와 정보원, 그리고 내용적 속성에 따른 관람선택 기준의 평균비교와 집단 간 차이를 분석하였다. 집단별 구성은 관람빈도에 근거하여 중관람자, 중간관람자, 그리고 경관람자로 분류하였다. 전체 집단의 평균비교 결과, 첫째, 관람동기에서는 "보고 싶은 애니메이션이 있어서", "여가활동이나 시간을 보내기 위해", "유쾌한 활동을 즐기기 위해", "다른 사람의 권유나 추천" 등의 순으로 나타났다. 둘째, 정보원적 속성에 대한 선택기준에서는 "주변 소문이나 평판", "예고편", "인터넷 평가/평점" 등의 순으로 나타났다. 마지막으로 내용적 속성에 대한 선택기준에서는 "스토리", "캐릭터", "특수효과", "배경음악", "배경미술", "감독/연출", "제작사/국가", 그리고 "성우더빙" 순으로 나타났다. 집단 간 차이에 대한 검증결과, 관람동기와 내용적 속성에 대한 선택기준에서는 집단별로 유의미한 차이가 나타났다. 반면, 정보원적 속성에 대한 선택기준에서는 집단별로 유의미한 차이가 나타나지 않았다.

• 한국차세대컴퓨팅학회논문지
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• 제14권6호
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• pp.7-14
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• 2018

다중 뷰 비디오로부터 두드러진 정보 추출은 인터뷰, 인트라 뷰간 상관관계와 계산 비용 때문에 매우 어려운 영역입니다. 매우 높은 계산 복잡성을 지닌 멀티 뷰 비디오에서 키프레임을 추출하기 위해 개발된 몇 가지 기술이 있습니다. 이 논문에서, 우리는 내부에 존재하는 엔트로피와 복잡한 정보를 사용하여 멀티 뷰 비디오의 키프레임 추출 접근 방식을 제시합니다. 첫 번째 단계에서는 프레임 사이의 SSIM값을 기반으로 각 보기에서 전체 비디오의 대표 샷을 추출합니다. 두 번째 단계에서는 서로 다른 보기의 모든 샷 프레임에 대한 엔트로피와 복잡성 점수가 계산됩니다. 마지막으로 엔트로피와 복잡성 점수가 가장 높은 프레임은 키 프레임으로 간주됩니다. 제안된 시스템은 사용 가능한 Office벤치마크 데이터 세에서 주관적으로 평가되며, 정확성과 시간 복잡성의 측면에서 결과는 편리합니다.

• 대한방사선기술학회지:방사선기술과학
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• 제33권2호
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• pp.93-96
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• 2010

슬관절 후방십자인대 손상이 의심되는 응급환자의 슬대퇴 관절을 촬영하기 위한 보조기구를 제작하고 그 유용성을 평가하고자 하였다. 실험 방법은 2006년 1월부터 2006년 12월까지 슬관절 손상으로 을지대학병원에 내원한 환자 중 후방십자인대 손상 의증으로 Knee post stress view와 Knee Merchant view 그리고 보조기구를 이용한 Knee post stress view를 모두 촬영하고, 무릎 MRI(Knee MRI)검사를 시행한 17명을 대상으로 하였다. $170{\times}50{\times}70\;cm$의 보조 기구를 제작하였으며 Knee post stress view와 보조기구를 이용한 Knee Seo's view에서 경골의 후방전위 간격을 측정하여 유용성을 평가하였다. 그 결과 보조기구를 이용한 Knee Seo's view가 기존의 Knee post stress view에 비해 후방십자인대 손상 여부의 판단이 더 정확한 것으로 나타났다. 기존 촬영법의 경골 후방전위 간격 차이는 $6.17{\pm}3.04$이었으며, 보조기구를 이용한 촬영법의 경골 후방전위 간격 차이는 $8.74{\pm}4.47$이었다. 결론적으로 자체 제작 보조기구를 이용한 슬대퇴 관절 촬영법은 기존에 슬관절면 손상을 보기 위한 Knee Merchant view와 후방십자인대 손상을 보기 위한 Knee post stress view를 동시에 1회 촬영으로 끝낼 수 있었으며, 기존의 Knee post stress view 보다 후방십자인대 손상 여부를 보다 정확하게 알 수 있었다. 따라서 후방십자인대 및 슬대퇴 관절 손상이 의심되는 응급환자에서 talometer나 MRI 검사의 선행 검사로 유용하게 이용될 수 있을 것으로 사료된다.

• 대한전자공학회논문지
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• 제23권4호
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• pp.535-542
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• 1986

In this paper, a hidden surface removal algorithm that generates a perspective view of three space plane-faced objects using scan line coherence is proposed. In particular, the proposed algorithm deals with hidden surface elimination of penetrating objects by using the optimum span division method with minimum test for priority test of segments. Also, a hidden surface redmoval method for representing sectional view of solids by using boolean difference is described.

• 한국환경교육학회지:환경교육
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• 제12권1호
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• pp.322-334
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• 1999

In environmental value education, the difference between Ecological and Economic view-point about environmentmust should be considered. Usually, although the differences are unavoidable, because our lifes are inclined to Economic life. But this propensity have become great obstacles to Environmental value education by diluting the fundamental reasons which the nature should be preserved. Furthermore we can't say that environmental problems are not solved just by economic approach, owing to its limits of solving by incentives. So we can say that it is very important to have equalized view-points in the relations of economics and ecology for balanced environmental value education. This study is to alternative environmental value education program, to have equalized view-points in the relations of economics and ecology through the small community located in Japan. The exact name of that program is GENSANGGAI. They have persued to attain a spiritual state of complete absence of ego through this program, and this spiritual state can be important environmental value educaton goal, which make the student to see the evironment with equalized view-points in the interdependence between economics and ecology. we can say that this program can be a kind affective (sentimentally perceived) environmental education program. It can be good environmental education program in affective domain. we can say that equalized view-points is to attain a spiritual state of complete absence of ego. This program is some similar to Kohlberg's latter term theory and Open educationin theory in substantial aspect, he persued Just Community Approach through Kibbutz in Israel. From the basis of his theory, if the GENSANGGAI program, which means harmony between socialization and development of moral stage, individualism and communism.

• KIEAE Journal
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• 제9권6호
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• pp.57-64
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• 2009

To make a prediction for a change of residential environment caused by the building code in Seoul which includes loosening the distance between multi-residential buildings, proposals of the four main building arrangements by analyzing examples were selected and then, amount of daylight and view efficiency were analyzed and presented through computer simulation for the proposals. In the result of the analysis, there was a difference among the arrangements but, when the distance between buildings was applied 0.8H as the least, residential environment like daylight and view efficiency per unit significantly decreased in quality. Particularly, for the middle stories(6-15) and the high stories(16~24), when the distance between buildings decreased from the current measurement, 1.0H, to 0.8H, the analysis indicated that 28% of daylight and 7% of view efficiency were reduced. In the building arrangements, an order of the best residential environment was followed in this sequence; balanced arrangement of flat type as the best, combined arrangement between L-shape and tower types, balanced arrangement of tower type, combined arrangement between flat and Y-shape types, grid arrangement of flat type, and combined arrangement between Y-shape and tower types as the least.

• Imaging Science in Dentistry
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• 제32권3호
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• pp.153-157
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• 2002

Purpose : This study was performed to determine the proper reference line for taking axial computed tomograms from which the good cross-sectional views can be reformatted by multiplanar reconstruction. Methods : Three dry mandibles with implanted gutta percha cones in the extracted socket were scanned axially according to 6 reference lines of 2 mandibular positions with computed tomogram Hitachi W550. The accuracy of measurements of the lengths of implanted gutta perch a cones in the each cross-sectional view reformatted from axial computed tomogram by multiplanar reconstruction was evaluated. Results: The difference between the measurements and the real length of implant was smallest in the bucco-lingual views reformatted from the axial views scanned according to the reference line of group V-a. The smaller the angle difference between reference line and occlusal line was, the smaller the difference between the measurements in the bucco-lingual views reformatted from axial views and the real length of implant. The majority of measured widths of implants in the bucco-lingually reformatted views were larger than the actual values. Conclusions : When the mandible is inclined within the limitation of gantry angle and scanned with the reference line coincident with occlusal plane, the bucco-lingual view can be reformatted without deformation of images from the axially scanned images.

• 한국임상수의학회지
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• 제19권2호
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• pp.139-146
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• 2002

The purpose of this study was to construct fundamental information for the usefulness and effects of thermography in Thoroughbred horses. total 10 horses were examined to determine a normal thermal pattern before and after sedation in lower limbs and ophthalmic area, and to investigate the effects of thermography during 42 days after induced wound and arthritis. In normal horses, the range of temperature difference(${\Delta}T$) of symmetry site in lower limbs was 0.20 to $0.68^{\circ}C$ on pre-sedation, which was simillar to that of post sedation, 0.17 to $0.74^{\circ}C$, and eyeball area was 0.34 to $0.68^{\circ}C$. Thermographically, the warmest area in normal limbs were coronary band of frontal view and the region between heel bulbs of back view. And temperature difference(${\Delta}T$) after clipping in left forelimb was increased 1 to $3^{\circ}C$ more than before clipping. However, there was no significant change of the temperature difference and degree of clinical signs by the process of inflammation healing during the experiment period in the all groups. These results suggest that the thermography was especially helpful in following clinical course of a disease because the thermal pattern will return to normal with declining clinical signs and healing of the lesion.

• 한국가정과학회지
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• 제3권2호
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• pp.13-26
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• 2000

The purpose of present study were to find the general trends of mate selecting factors and. marital satisfaction. concentrated on married women, to examine the difference among mate selection factors and marital satisfaction according to socio-demographic variables and Psychological variables and to analyze the effects of these variables influencing marital satisfaction. The subjects were 276 wives, living in Kwangju that having passed under S years after marriage without divorce experience. The major findings were as follows . 1. In mate selection, factor of high-degree was personality. view of value. personal relations, achievement, emotional mature. self-differentiation. degree of affection's expression. sense of humor, charms and condition of health Respondents'marital satisfaction score showed 91.75 and this score was higher than median score(62.5) 2. The external factor of mate selection showed significant difference according to degree of education. career. order. and sex-role attitude. The internal factor of mate selection showed significant difference according to degree of education, career, order, self-differentiation, self-esteem, and sex-role attitude 3. As correlating mate selectional factors to marital satisfaction, the significance appears in the mate's personality. view of value, emotional mature. personal relations. self-differentiation, condition of health. achievement. charm, sense of humor and degree of affection's expression. 4. Married women's marital satisfaction was influenced by self-esteem, personality and child's number that were explained about 38% by these variables. In conclusion, to happy marital life must be loved her own self. and above all considered internal factors like personality than external factors in mate selection.