• 한국항공우주학회지
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• 제39권7호
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• pp.643-651
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• 2011

본 논문에서는 전단하중을 받는 다양한 알루미늄 샌드위치 체결부의 파손 특성에 대한 시험 연구를 수행하였다. 3종류의 인서트 형식 체결부와 2종류의 포팅 형식 체결부에 대해 총 60개의 시편을 제작하여 시험을 수행하였다. 시험 결과, 인서트 형식 체결부의 경우 쓰루 클리어런스(through-clearance) 인서트를 사용한 경우의 파손하중이 가장 높게 나타났으며 포팅 형식 체결부의 경우 딤플 와셔(dimple washer)가 있을 때 전단하중이 약10% 향상되는 것을 확인할 수 있었다. 예상대로 면재의 두께가 증가할수록 전단파손하중도 증가하고, 특히 하중치구와 접촉하고 있는 상부 면재의 효과가 지배적인 것을 확인하였다.

• 대한치과교정학회지
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• 제16권1호
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• pp.167-177
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• 1986

This study was undertaken to compare the main differences and its effects of the 4 first bicuspid extraction on the face and dental arch of the class II div 1 malocclusion. The subjects consisted of twenty two class II div 1 malocclusion, four males, eighteen females, were 14 Years 2 Months old at the stan of the treatment 16 Year 3 Months old at the end of the treatment. (mean age) Twenty one variables were observed by comparing the statistical data of the pretreatment records with postteratment records, which were consited of eight varibles on the study model digitation, thirteen variables on the tracing of the lateral cephalogram. The following results were obtained. 1. No significant change was observed in the intercanine width. 2. Intercuspal widths of the 1st. premolar and 2nd. premolar were decreased. 3. Change of the overjet was dependant upon upper anterior rather than lower anterior. 4. No significant changes were observed in facial plane angle and ANB angle. 5. Uprighting of the lower 1st. molar had an effect on the increase of the facial height.

• 복식
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• 제19권
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• pp.195-207
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• 1992

palestein had been a part of Islamic culture before Israel was established after World War II and their daily lives had been totally affected by the Korean, Consequently, the idea of clothing, types of women clothes and it's characteristics reflected in the Koran have been studied and the results are as follows: First, the idea of clothing reflected in the Koran emphasizes the equality of the sexed and treats women as men's equal partner. Second, in the Koran there is almost no reference on men's clothes, but it only recommends women to wear veil to cover their faces and bodies when they go out. The Koran argues that it is not to restrict women but to protect them. Third, due to it's geographical location, Palestinian clothes had been affected by it's neighboring areas, and the gumbaz-a kind of coat - is one of the examples of Turkish origin. In the beginning the gumbaz had been worn by upper class Palestinian women and subsquently by urban Nazareth women. They used to slip on gumbaz on their heads and shoulders. Fourth, In Palestein they wore jacket over coat or dress. The emboridered jacket from Bethlehem was mostly worn their wedding dress. Fifth, the headdress and face-veil in Palestein are the most unique ones and married women decorated headdress and face-veil with gold or silver coins which they received as wedding presents, and wrapped all their coin decorations in black cloth when husbands are dead. Bedouins decorated not only with coins but also with shells, buttons, stones and beads to articulate their chastity, social status, aestheticism, religion and magic.

• 사상체질의학회지
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• 제29권1호
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• pp.29-39
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• 2017

Objectives Facial features can be utilized as an indicator of Korean medical diagnosis. They are often measured by using the diagnostic device for an objective diagnosis. Accordingly, it is necessary to verify the reliability of the features which are obtained from the device for the accurate diagnosis. In this study, we attempt to evaluate the repeatability of facial feature variables using the Sasang Constitutional Analysis Tool(SCAT) for the Sasang Constitutional face diagnosis. Methods Facial pictures of two subjects were taken 24 times respectively for two days according to a standard guideline. In order to evaluate the repeatability, the coefficient of variation was calculated for the facial features extracted from frontal and profile images. Results The coefficient of variation was less than 10% in most of the facial features except the upper lip, trichion, and chins related features. Conclusions It was confirmed that the coefficient of variation was small in most of the features which enables the objective and reliable analysis of face. However, some features showed the low reliability because the location of facial landmarks related to them is ambiguous. In order to solve the problem, a clear basis for the location discussion is required.

• 복식
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• 제51권5호
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• pp.5-16
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• 2001

The purpose of the study was to investigate the body cathexis, ideal body shape, clothing satisfaction and their interrelationships. The subjects were 445 middle- and high- school girls. The findings were as follows : the subjects were more satisfied with their face appearance than body parts. They were very unsatisfied with thigh. leg and weight. Generally they were more satisfied with upper body than lower body, and more satisfied with length measurements than girth measurements. They accepted 169.19cm as ideal height and 49.18kg as ideal weight. The middle-school girls wanted to be taller than high-school girls by 3cm. But the ideal weight of both were almost same. The Rohrer indices indicated that the subjects were normal to slender type. But the Rohrer indices calculated using ideal height and ideal weight showed that the subjects thought extremely slender type as ideal body shape. The attitude of body was evaluated by two factors. the awareness of body shape and the physical attractiveness. The awareness of body shape was deeply influenced by girth measurements and lower body parts. And physical attractiveness was severely affected by face appearance. Weight was more important than height in regard to body cathexis. The ideal body shape was independent of individual situation but was formed by social value. The satisfaction of clothing in terms of design related aspects was influenced by body cathexis. Also the more satisfied with their body. the more they felt comfortable for their clothing. The body cathexis was interrelated with the satisfaction of clothing in some aspects.

• 대한가정학회지
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• 제39권1호
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• pp.137-149
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• 2001

Matemal behaviors of Korean mothers of one-year-old infants (26 boys and 21 girls) were observed at home. Mothers were from middle to upper-middle class families in Seoul. Trained observers visited the infant's home for 3 to 4 hours and observed infant-mother interactions in natural situation. After the home visit, observers sorted the Maternal Behavior Q-set into 9 piles, from most characteristics to least characteristics of the mothers. In general, Korean mothers were quite sensitive and responsive in their interactions with one-year-old babies. Mothers interpreted baby's cues correctly, noticed when baby was distressed, and slowed pace down to wait for baby's response. Maternal behaviors were somewhat different according to whether they interacted with boys or girls. Mothers of boys were observed to be less sensitive in their interactions than mothers of girls. Mothers of boys were more unaware of or insensitive to baby's signs of distress, their responses were more delayed, and provided baby to constant and unphased barrage of stimulation thus made baby overwhelmed. In contrast, mothers of girls enjoyed face-to-face interactions, slowed pace down, and their interactions revolved around baby's tempo and state.

• 한국지반환경공학회 논문집
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• 제6권2호
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• pp.15-20
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• 2005

도로 주변 절토사면 상부에 시공되는 산마루 측구는 상부로부터 흘러내리는 지표수를 원활히 배수시켜 절개면으로 유입되는 것을 방지한다. 국내의 경우 전 국토의 70%이상이 산악지로 구성되어 있어 도로 개설에 따른 절개면의 발생은 필연적이다. 여름 집중호우와 간극수압의 증가로 인하여 절개면의 불안정성은 증가된다. 그러나 절토사면 상부에 시공되어 있는 산마루측구는 품질관리의 어려움과 배수능력 부족 등의 문제점들이 있다. 따라서, 본 논문에서는 산마루 측구의 깊이와 투수계수에 따른 절토사면의 안전율 변화를 분석하였으며 적절한 측구 설치깊이를 결정하였다.

• 한국정보과학회논문지:소프트웨어및응용
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• 제29권5호
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• pp.311-318
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• 2002

이 논문은 눈동자와 입술을 효과적으로 인식하는 방법을 제안하였다. 얼굴에서 가장 어두운 부분 중의 하나인 눈동자와 밝은 부분인 흰자위로 구성되는 눈의 형태적인 특징과 눈동자와 눈썹 사이의 관계를 반영하는 평가함수를 이용하여 눈동자를 인식하였다. 입술 형태, 입술과 인접한 피부와의 밝기 차이를 반영하는 가중치 벡터들을 사용하여 두 입술 사이의 경계선과 입술의 4개 특징점(양 끝점 및 위와 아래의 끝점)을 찾았다. 여러 영상들에 대해 실험하여 좋은 결과를 얻었다.

• 화약ㆍ발파
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• 제20권2호
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• pp.7-19
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• 2002

The cut is placed high up in the section, the 1st sloping holes below the cut, and divided all the holes located below the 1st sloping holes into a certain area with longitudinal section, to lower pollution made from tunnel blasting. With the sequential blasting machine, after I first blasted holes around the cut holes by a pre-splitting method, blasted the cut area and the 1st sloping holes. The 1st and 2nd sloping holes divided areas are initiated gradually to free face upwards made by the cut. Especially, I pre-splinted contour holes previous blast the before sloping holes from the contours. The ground vibration from the earth surface just over the advance face decreased about 42.0% compare with the down blasting method under the condition of equal charge weight per delay. I controlled the crack and over break of the mother rock by pre-splitting contour holes before blast the first sloping holes from the contours. The peak values of noise and air blast by blasting decreased about 10dB more than the down blasting method. the noise and air blast diminished gradually as a round. The throw distance of the fly rock was decreased about 55%.

• Journal of Welding and Joining
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• 제17권2호
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• pp.66-75
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• 1999

Weld bead quality in tailored blank(TB) is critically affected by edge preparation of sheets. The edge quality of prepared sheets for TB can be classified into straightness and the cross section quality of sheared plane such as a ratio of shear face, shear plane angle, etc. In order to have a good edg quality for butt-welding sheets, precision shearing will be recommended. In this paper, the feasibility of a conventional mechanical shearing as the edge preparation for tailored blanks is studyied. It reveals that fine shearing may not be the unique solution as it is generally accepted. To obtain the good shearing condition with a conventional mechanical shearing, experiments were carried out using Tahuchi method. The major parameters affecting a sheared contour are the clearance between upper blade and lower blade, and shear angle. The optimal shearing condition yields a very good straightness along the entire length of the cut, which gives a butt joint gap less than 10% of the base material thickness. The good cross section of sheared plane is also achieved in the optimal shearing condition such as a ratio of the shear face above 65%, a cross section's shear plane angle above 85%, little burr, which is providing finally good weld beads.