• Maxillofacial Plastic and Reconstructive Surgery
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• 제27권2호
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• pp.151-159
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• 2005

The purpose of this study was to evaluate the nasal deviation in mandibular prognathism with mandibulo-facial asymmetry. There were 40 patients whose mandibular prognathism with/without facial asymmetry were treated with orthognathic surgery from March 2002 to October 2003. The Group A(n=20) had a mandibulo-facial asymmetry over 6mm menton deviation in cephalogram PA and the Group B(n=20) had a mandibular prognathism. The preoperative frontal photograph, cephalogram PA and three dimensionalcomputed tomography(divided in hard tissuse image and soft tissue image) of two group was evaluated NDA(nasal deviation angle) and MDA(mandibular deviation angle). The NDA was statistical difference between asymmetry Group A and symmetry Group B(p<0.01), and was deviated in affected side of asymmetry. The MDA were also statistical difference between Group A and Group B(p<0.01), however the measurements of MDA between the frontal photograph, 3D-CT and cephalogram PA were similar to each others. The low correlation of NDA between frontal photograph and cephalogram PA in Group A and B demonstrate that we couldn't assess nasal deviation in cephalogram PA. It could be concluded that patients with mandibulo-facial asymmetry have a nasal deviation and clinician must remember this fact when they assess and treat patients.

• 한국초등과학교육학회지:초등과학교육
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• 제24권2호
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• pp.138-144
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• 2005

This study was intended to survey and analyze the illustrations of the elementary science textbooks in the』 7th revised education curriculum in Korea, and to compare the results with the illustration organization of the elementary science textbooks of Japan. The analysis criterion was composed of two categories, the kind of illustration and the role of illustration. The kind of illustration was divided into five subcategories such as photograph, picture, illustration, cartoon and diagram. The role of illustration was divided into four subcategories such as motive induction, guidance for learning, the supply of material, the presentation of results. According to the analyzing criterion, the frequencies of relevant subcategories of illustrations in science textbooks were checked and arranged and the resultant data were analyzed by grades. The findings of this study were as follows: 1. Korean science textbooks have about 3.29 illustrations per page whereas Japanese ones have 4.1l. Compared with Korean science textbooks, Japanese ones have more illustrations. 2. From the analysis of the kinds of the illustrations by grade basis, it was found that the order of percentage of illustrations is photograph, cartoon and picture in both countrys' science textbooks. Korean ones are highly dependent on photograph. As a contrast Japanese ones have more ratio of cartoon and picture than Korean science textbooks. 3. The analysis of the roles of the illustrations by grade basis showed that the role of guidance for learning is major in both countrys' science textbooks. The role of guidance for learning is prominent in Japanese ones, but in Korean ones, the role of guidance for learning is a little higher than that of the supply of material.

• 대한지구과학교육학회지
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• 제3권1호
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• pp.55-64
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• 2010

This study was intended to survey and analyze the illustrations of Chinese elementary science textbooks. The analysis criterion was composed of two categories, the kind of illustration and the role of illustration. The kind of illustration was divided into six subcategories categories such as photograph, picture, illustration, cartoon, diagram and recording sheet. The role of illustration was divided into four subcategories such as motive induction, guidance for learning, the supply of learning material, the presentation of learning result. The findings of this study were as follows. Chinese elementary science textbooks have about 3.55 illustrations per page. Compared with Korean ones, Chinese ones have more illustrations. From the analysis of the kinds of the illustrations on grade basis, it was found that the order of percentage of illustrations of Chinese elementary science textbooks is photograph, cartoon et al.. Photograph is prominent in entire grade. And From the analysis of the kinds of the illustrations on domain basis, the same results was founded. From the analysis of the roles of the illustrations on grade basis showed that both supply of learning material and guidance for learning are dominant in entire grade. The role of supply of learning material is a little more major than that of guidance for learning. From the analysis of the roles of the illustrations on domain basis, it was found that in domain of physics and chemistry the role of guidance for learning is major, and in domain of biology and earth science the role of supply of learning material is major.

• 한방안이비인후피부과학회지
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• 제30권4호
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• pp.97-103
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• 2017

Objectives : To identify whether pattern identification using nasal endoscopy for rhinitis can be applied as a tool for evaluating rhinitis in routine care setting, we performed a inter-rater reliability study on this pattern identification. Methods : Two Korean medicine doctors assessed 290 left/right nasal endoscopy photograph cases of rhinitis patients with pattern identification using nasal endoscopy. This pattern identification consist of four assessment items, nasal membrane color(pale/hyperemia), nasal membrane humidity(dryness/dampness), rhinorrhea(watery/yellow), and turbinate membrane edema(atrophic/edematous). Cohen's kappa statistic and Percentage agreement were used to evaluate the inter-rater reliability. Results : Inter-rater percentage agreement and Kappa coefficient for left nasal endoscopy photograph cases was from 'slight' to 'moderate'(% agreement: 40.00-67.59%/Kappa: 0.06-0.407). Only the agreement of 'rhinorrhea (watery/yellow)' item was moderate(% agreement: 67.59%/Kappa: 0.407). Inter-rater percentage agreement and Kappa coefficient for right nasal endoscopy photograph cases was also from 'slight' to 'moderate'(% agreement: 42.41-68.97%/Kappa: 0.109-0.465). Only the agreement of 'rhinorrhea(watery/yellow)' item was moderate(% agreement: 68.97%/Kappa: 0.465). Conclusions : It is necessary to resolve problems such as cut-off value setting, bipolar evaluation values(pale/hyperemia, dryness/dampness, watery/yellow, atrophic/edematous) and weighting items. Further rigorous studies that overcome the limitations of the current research are warranted.

• 한국콘텐츠학회논문지
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• 제14권3호
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• pp.103-112
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• 2014

오형근은 우리나라를 대표하는 초상사진가이다. 여성의 초상을 다룬 <아줌마>, <소녀연기>, <화장소녀>는 과거 초상사진이 인물의 외양을 묘사한 것과 조금 다른 모습을 보인다. 작가는 인물의 겉모습과 더불어 '가정과 사회' '아이와 여성' 중간에서 갈등하고 불안해하는 내면의 모습을 표현하였다. 즉 비슷한 사진을 반복적으로 보여주면서 아줌마와 소녀 인물군 전체가 내뿜는 특정 아우라(aura)를 담아내, 우리는 '아줌마'와 '소녀'를 보고 알게 된다. 오형근 초상사진의 중요한 기법은 이미지의 '반복'이다. 작가는 인물을 정면에서 똑바로 응시하고 비슷한 프레임의 사진을 반복적으로 보여주면서 사진의 의미를 전달한다. 이러한 작품의 형식과 내용은 증명사진처럼 매우 단순해 자칫 지루하게 느껴질 수도 있다. 그러나 흘러가는 시간과 이동하는 공간을 표현한 영상보다 고정된 자리에서 움직임 없는 액자 속의 사진은 작품의 의미를 더욱 명확히 전달해, 우리는 오히려 작가가 전달하려는 메시지를 빨리 파악할 수 있다. 이미지 변형이 주를 이루는 사진 제작 환경에서 정통 오리지널 작업방식의 오형근 작품은 단연 눈에 띈다. 아줌마와 소녀의 초상을 통해 작가는 우리 사회의 한 단면을 이야기하고 우리는 그가 만든 초상을 통해 현실을 재확인한다.

• 한국환경복원기술학회지
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• 제21권4호
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• pp.65-73
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• 2018

Although the road construction in forest is increasing and there is a need for development ecological restoration on deforest area, no consideration has been given to individual trees in there. This study analyzed aerial photographs of deforest area before and after road construction for determining the degree of forest destruction by extracting individual trees. Study area was selected in the sites where are damaged by road construction in GongJu-si, YuSung-gu, and YeongDong-gun. The aerial photograph taken 1979 before construction is panchromatic image of 80cm in GSD (Ground Sample Distance) and other photograph taken 2016 after construction is multi-spectral image of 10cm in GSD. In order to minimize the difference of GSD, we conducted image re-sampling process for setting to same GSD for the two photographs. After that we carried out visual interpretation method for determining to change of individual tree. The result found that for GongJu-si of the number of individual tree was 1,014 in 1979 and 886 in 2016, which decreased by 128 (12.6%) and the average width of those decreased from 5.77m to 5.75m by 0.47%. In case of YoungDong-gun, the number of it was 761 in 1979 and 746 in 2016, which decreased by 2.0% and the average width of it decreased from 8.99mm to 8.90m by 1.1%. Lastly in case of YuSung-gu, the number of it was 1,578 in 1979 and 988 in 2016, which decreased by 37.4% and the average width of it decreased from 7.09m to 6.65m by 6.21%. these result imply that road construction causes destruction of forests. Since there are limitations such as errors due to researcher, it is necessary to construct a quantitative analysis method for the change of the deforest area. It is need to study the method of extracting individual tree in deforest area more accurately using high-resolution image of GSD 10cm or more as well. This study can be used as a basic data for the ecological restoration of the deforest area considering characteristics of individual tree such as height, diameter at breast height, and biomass.

• 한국문화재보존과학회:학술대회논문집
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• 한국문화재보존과학회 2003년도 제17회 학술대회 발표 논문집
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• pp.36-37
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• 2003

• 한국기계연구소 소보
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• 통권18호
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• pp.99-104
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• 1988

The method of simulation for ballistic feeding mechanical system is presented. Taking photograph of roller drived by a force of explosion, searches the motion of roller. The algorithm that a motion of roller is converted into a motion of cam is presented. Using central difference method, the angular velocity and acceleration of cam is evaluated.

• 한국초등과학교육학회지:초등과학교육
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• 제26권4호
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• pp.459-467
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• 2007

The purpose of this study was to compare the illustrations used in elementary science textbooks of Korea and BSCS in USA, and analyze the types, role, and characteristics of the illustrations. For the analysis, we used 8 elementary science textbooks of the 7th curriculum of science education in Korea from 3rd through 6th grade, and 16 volumes (stage 2 to stage 5) used in BSCS in USA. We examined types of illustrations, including photograph, picture, graphic, cartoon, chart, and their 4 roles such as, motivation, introducing the lesson activity, providing the materials, presenting the learning result. The results were as follows: First, Korean textbooks have more "photograph" type of illustration than BSCS. In BSCS textbooks, diverse types of illustrations were used compared to Korean textbooks. Second, large portion of illustrations in Korean textbooks took a role of providing materials. In BSCS textbooks, the roles of illustrations were more diverse. In BSCS, there were many illustrations to describe students working together with the disabled children, and to explicitly encourage cooperative learning. Considering the findings in this study, educational implications were discussed.

• 한국정보과학회논문지:소프트웨어및응용
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• 제31권6호
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• pp.817-828
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• 2004

본 논문에서는 몽타주 기법과 음영합성 기법을 이용한, 디자이너(예술가)의 감각을 살린 벡터 기반의 얼굴 생성 시스템을 제안한다. 제안하는 시스템은 사진으로부터 얼굴의 특징정보를 추출하여 사람의 얼굴과 유사한 얼굴을 자동으로 생성해 주는 시스템이며, 윤곽선만을 사용하던 기존의 얼굴 생성 시스템과 달리 컬러 기반이며, 음영을 사진으로부터 추출하여 이를 이목구비 이미지와 합성하여 생성하는 방식이다. 따라서 실사형에 좀 더 근접한 얼굴을 생성할 수 있다는 장점을 갖는다. 또, 벡터를 기반으로 하기 때문에 사이즈에 제한 얼이 자유로운 변형이 가능할 뿐만 아니라 디자이너 또는 그림 작가의 느낌을 결과물에 그대로 유지할 수 있도록 한다는 점에서 타 접근방식과의 차별성을 갖는다. 또, 2D 아바타에 자유로운 표정을 적용하는 데에도 쉽게 적용이 가능하다.