• 대한물리의학회지
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• 제3권3호
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• pp.151-160
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• 2008

Purpose : The purpose of this study is to know the muscle activation after sub-talar joint mobilition and active exercise, and the low leg muscle activity through the well-balanced interaction of ankle joint around muscle. Methods : For this study 61 experimental subjects are divided into 24 people of supination foot group, pronation foot group 17 people of, 20 people of control group through navicular drop test. Surface EMG was used in order to measure the muscle activities. following is the result of the data analysis about each experiment that has been carried on a week, 2 weeks, 3 weeks, 4 weeks before, and even comparing with pre-experimental state. Results : In electromyogram study, the higher muscle activation there was before the experiment, the more muscle activation increase there was after the experiment in Tibialis Anterior, Peroneus Longus, Peroneus Brevis.(p<.05). Conclusion : This study shows the balanced activation of foot and ankle-around muscle. It shows that foot shape affects the balanced activation recovery of lower leg muscles.

• 한국의류학회지
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• 제26권7호
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• pp.1026-1035
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• 2002

The purposes of this study were to classify the front view of trunk of adult males into several kinds of shape and to provide the characteristics and silhouette of each group which has same shape. As the sample, subjects were l290 males of 20 to 54 year-old. The procedure and results were follows; l. The principal component analysis was used to obtain the shape factor of the front of the trunk 8 factors in the front which explained 86.8% of total variance were extracted. 2. As the result of the cluster analysis of factor scores, the font of body was classified in 4 types. 4 types were named X, A, Y and H type in the front considering the characteristics of each type.

• Journal of the Korean Data and Information Science Society
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• 제18권1호
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• pp.247-257
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• 2007

In this paper, we develop the noninformative priors for the common shape parameter in the gamma distributions. We develop the matching priors and reveal that the second order matching prior does not exist. It turns out that the one-at-a-time reference prior and the two group reference prior satisfy a first order probability matching criterion. Some simulation study is peformed.

• 대한가정학회지
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• 제39권2호
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• pp.25-40
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• 2001

The purpose of this study is to provide for the basic data useful to the development of the quality of brassiere featuring a good wearing feeling and an effect of reinstating and correcting breast shape. For this purpose, 220 adult women aged between 20 and 59 were sampled to survey their actual breast shapes. The results of this study can be summarized as follows; 1 According to the increase of age, the items of height were decreased and items of width, depth, circumference and length were increased, being obeser and breast point were drooped. So volume and bottom are3 of breast of 40.50′s women′s age group were larger than 20.30′s women′s age group and breast point width of 40.50′s women was being wider by increase of interior dimensions of breast. 2. The components of adult women′s breast shape can be categorized into "obesity of breast", "upper dimensions of breast and drop", "lower dimensions of breast and drop", "location of breast point and vertical size of breast", "interior dimensions of breast", "exterior dimensions of breast" Such components of breast shape very in terms of weight or apparence depending on ages. Older women tend to have more droopy and widen breasts.

• 소성∙가공
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• 제24권4호
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• pp.234-240
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• 2015

Multi-pass shape drawing is very important to produce steel profiles in round samples. In the current study, a process design system is developed for a multi-pass shape drawing. In general, the number of passes for a multi-pass shape drawing is 2 to 3 when the reduction ratio, drawing stress, and productivity are considered. Therefore, calculating the drawing stress and designing the intermediated die shapes are very important. In order to calculate the drawing stress, a shape drawing load prediction method is proposed using a general axisymmetric drawing load prediction model. An intermediate die shape design method is proposed using the initial and the final product shapes. Based on this analysis, a process design system is developed for multi-pass shape drawing for steel profiles. The system works with AutoCAD. The system was applied to design a shape drawing of a spline.

• 대한지구과학교육학회지
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• 제5권2호
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• pp.197-203
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• 2012

The main purpose of this research is to search the effect of different types of advance organizers in elementary science classes, to the students in acquiring scientific concepts and its retentions. In order to proceed with the research, We have chosen 93 students of three different classes of fifth graders, studying in M elementary school in U metropolitan city. We have randomly chosen two classes as an experimental group and one class as a comparative group. In the first experimental group (Group1), advance organizer was put in a form of a sentence., and the second experimental group (Group2), advance organizer was put in a form of a picture. For the comparative group, We have not put any advance organizer, and the method of class was proceeded as it was before. The result of this research are as follows. Firstly, the result of 'One-way analysis of variance' on scientific concept grade, right after the experiment on three groups, has shown a meaningful difference that, the shape of advance organizer does affect the acquisition of elementary school students' scientific concept. Secondly, even though Group1, who was given with a sentence as an advance organizer, got higher scientific concept scores after the experiment than that of comparative group, However, there was not a meaningful difference between Group1 and comparative group. Thirdly, Group2, who was given with a picture as an advance organizer, has shown a meaningful difference from comparative group. Judging from the facts above, utilizing an advance organizer of a picture in elementary science class, will be very affective on students' acquiring scientific concept.

• 한국정밀공학회지
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• 제28권5호
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• pp.578-584
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• 2011

In mechanical cutting process, burr was generated at workpiece by cutting tool generally. It is working disturbance during manufacturing process. Besides burr was taken shape relatively large size more micro scale machining than macro scale machining. Many researches have been studied to remove micro burr(de-burring), because it was negative effect for accuracy of machining shape. However, micro de-burring was constrained by burr height, micro feature and so on. In this paper, experimental research was carried out to compare de-burring characteristics of $Al_2O_3$ abrasive and polymer.

• 보건교육건강증진학회지
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• 제18권1호
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• pp.79-91
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• 2001

본 연구는 초등학교 6학년 아동을 대상으로 비만상태에 따른 체형만족도와 체형존중감과의 관계를 알아보기 위하여 1999년 5월 1일부터 5월31일까지 제천시 5개 초등학교 6학년 아동 669명을 대상으로 신체계측 자료와 설문지 조사를 이용하여 자료수집을 하였으며 그 결과는 다음과 같다. 1. 비만상태는 전체의 14.0%, 남자의 21.4%, 여자의 6.6%가 비만이었으며, 평균체중은 남자가 41.09kg(표준편차, 9.102), 여자가 39.99kg(표준편차, 7.743)이었고 평균신장은 남자가 147.51cm(표준편차, 7.122), 여자가 149.13cm (표준편차, 6.852)이었다. 2. 비만상태에 따른 체형만족도는 전체($chi^2$=110.31, p= .000), 남($chi^2$=99.97, p= .000), 여 ($chi^2$=62.23, p= .000) 모두 유의한 차이가 있었다. 전체에서는 저체중군의 38.8%, 정상체중군의 32.0%, 과 체중군의 24.29%, 비만군의 10.6%가 체형에 대해 만족하였고, 남자에서는 저체중군의 25.7%, 정상체중군의 28.8%, 과체중군의 31.7%, 비만군의 12.5%가 체형에 대해 만족하였으며, 여자에서는 저체중군의 42.3%, 정상체중군의 23.7%, 과체중군의 12.0%, 비만군의 4.5%가 체형에 대해 만족하였다. 3. 비만상태에 따른 체형존중감은 전체(F=8.634, p= .000), 남(F=11.738, p= .000), 여 (F=4.502, p= .004) 모두 유의한 차이가 있었다. 평균 체형존중감 점수는 전체에서 정상체중군이 12.764점(표준편차 5.344)으로 가장 높았고 비만군이 9.840점(표준편차 4.638)로 가장 낮았으며, 남자에서는 과체중군이 14.780점(표준편차 4.601), 여자에서는 저체중군이 12.284점(표준편차 4.604)으로 체형존중감이 가장 높았고, 남(평균 10.166점, 표준편차 4.246), 여(평균 8.772점, 표준편차 5.723) 모두 비만군에서 체형존중감이 가장 낮았다. 4. 비만도와 체형만족도 및 체형존중감과의 상관관계는 비만도와 체형만족도(r= -.2081, p= .000), 비만도와 체형존중감(r= -.2250, p= .000)은 유의한 역상관관계를 나타내어 비만도가 높을수록 체형만족도와 체형존중감이 낮았다. 5. 일반적 특성에 따른 비만상태는 전체에서는 성별($chi^2$=88.136, p=.000), 체형에 대한 인식($chi^2$=242.371, p= .000)에서, 남자에서는 부의 체형($chi^2$=15.11, p= .019), 체형에 대한 인식($chi^2$=138.95, p= .000)에서, 여자에서는 모의 학력($chi^2$=19.46, p= .022), 체형에 대한 인식($chi^2$=143.35, p= .000)에서 유의한 차이가 있었다. 전체에서 성별은 남자에서 비만은 21.4%, 여자에서 비만은 6.6%로 남자가 비만인 경우가 더 많았고, 체형에 대한 인식은 자신의 체형이 말랐다고 인식하는 경우 비만은 0.7%, 보통이라고 인식하는 경우 비만은 9.3%, 비만하다고 인식하는 경우 비만은 64.6%로 나타났다. 남자에서 부의 체형이 마른 경우 실제 비만인 학생은 21.20%, 보통인 경우 19.1%, 비만인 경우 42.9%로 나타났고, 자신의 체형에 대한 인식은 체형이 말랐다고 인식하는 경우 비만은 1.3%, 보통이라고 인식하는 경우 비만은 16.6%, 비만이라고 인식하는 경우 비만은 83.4% 이었다. 여자에서 모의 학력이 초등졸에서는 실제 비만은 없었고 중졸에서는 비만이 11.1%, 고졸에서는 4.9%, 대졸이상에서는 13.2%로 나타났고, 체형에 대한 인식에서는 말랐다고 인식하는 경우 실제 비만은 없었고, 보통이라고 인식한 경우 비만은 2.6%, 비만하다고 인식한 경우 비만은 43.3% 이었다.

• Parasites, Hosts and Diseases
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• 제25권2호
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• pp.99-109
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• 1987

The present study was carried out to examine the effect of a calcinogen, aflatoxin B1 on the ultrastructural changes of ciliary epithelial cells in mice infected with Clonerchis sinensis. A total of 93 male albino mice(BALB/c strain) was divided into 3 groups; group I, treated with 1.0 ppm aflatoxin Bl for 12 weeks; group II, given 50 C. sinensis n;etacercariae, and group III, given 50 metacercariae and treated with 1.0 ppm aflatoxin Bl for 12 weeks. Three mice served for untreated-uninfected controls. From 4 weeks after the treatsment and/or in(ection, three mice from each group were sacrificed at 4 week intervals up to the 40th week, and their hepatobiliary tissues were prepared for transmission electron microscopy. The most prominent ultrastructural changes in group I were remarkable enlargement of nuclear size, separation of nucleolus, dispersed chromatin granules in nuclei and increased dense granules along the inner membrane of nuclei. In the cytoplasm there was slight proliferation of mitochondria and endoplasmic reticulum (ER) at earlier stage. At the 12th week separation of fibrillar and granular components of the nucleolus was a characteristic finding. As the time elapsed, epithelial cells showed fiattened-cuboidal form and a tendency of atrophy. Most of the nuclei were elongated and polygonal in shape. In group II the appearance of elaborate interwoven folds of lateral cytoplasm forming a labyrinth of interconnected intercellular space and variety in nuclear shape were the prominent fadings at earlier stage. The cytoplasm showed slight proliferation and dilatation of mitochondria and ER, and a small number of mucin droplets. In the basement membrane scanty fibrous cells were seen. With time, variety in nuclear shape, marked proliferation and dilatation of rough ER and some collagen fibrils were demonstrated. Other features of intracellular organelles and mucin droplets persisted. In group III cuboidal epithelial cells showed their remarkably enlarged and irregular nuclei, increased chromatin granules in the nuclei, separated nucleoli, proliferated and dilated rough ER. With time, sequestered mitochondria showed blob-like evaginations which lacked cristae and dense matrix, and were limited by a single membrane. Since the 20th week, microvilli were relatively scanty and poorly developed. Organelles and inclusions in the cytoplasm of metaplastic cells were poor. Nuclei were variable in shape. The nlost prominent changes at later stage were separation of nuclei from the cytoplasm, and appearance of numerous and irregularly angled electron dense granules in the nuclei.

• 한국의류학회지
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• 제33권6호
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• pp.938-948
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• 2009

본 연구는 2003년에서 2004년에 실시된 제 5차 한국인 인체치수 조사사업을 통해 확보된 측정사진 중 성인여성 20, 30, 40, 50대 각 150명, 총 600명의 정면과 측면 얼굴사진을 대상으로 얼굴의 연령별 특성을 파악하는데 필요하다고 판단되는 62개의 측정항목과 보다 세부적인 얼굴형태의 분석에 활용될 수 있는 21개의 지수 및 계산항목 총 83개 항목을 본 연구자가 선정한 후 Size Kroea 사업 중 얼굴의 측정 프로그램으로 사용되었던 "Venus face2D"를 이용하여 2차원 간접 측정하였다. 간접 측정기간은 2006년 3월 1일부터 6월 30일까지였다. 연구의 결과는 다음과 같다. 성인여성의 주요 측정항목에 대한 평균 측정치는 얼굴길이 196mm, 상안 62.3mm, 중안 68.9mm, 하안 66.5mm이었고, 이마너비는 125.1mm, 눈살수평너비는 141.2mm, 옆광대점너비 150.8mm 턱아래점너비 124.4mm였다. 이를 바탕으로 우리나라 성인여성 얼굴의 세부항목에 대한 연령집단별 차이를 분석하였으며, 전체 성인여성의 평균 얼굴형과 더불어 각 연령집단별 평균 얼굴형을 제시하였다. 본 연구는 정량화된 수치와 비율을 이용하여 우리나라 성인여성 및 각 연령별 평균 얼굴형을 제시하고, 연령별 얼굴특성을 분석하였다는데 연구의 의의가 있다.