• 제목/요약/키워드: Shape factor

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Plus-size 여성의 상반신 체형연구 (A Study on Body Shapes from Classification of Plus-Sized Women)

  • 성옥진;하희정
    • 복식
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    • 제56권2호
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    • pp.101-111
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    • 2006
  • The purpose of this research is to define body shapes of Plus-sized women at ages between 21 and 69 whose satisfied the Plus-sized judgment criteria took part in this study. This research also classifies different body types, and provides basic data for designing prototypes according to each body type. Based on factor analysis of the measured data, nine key factors are grouped. And four different body types are classified based on the cluster analysis using factor marks. Type 1 refers to those who are tall and characterized by 'Y' body shape when looked from the front. Looking from the side, this type is comparatively balanced obese type which has flat breast and abdomen, and which has a jutting back and buttocks. Type 2 refers to those who are the shortest of all the obese with 'X' front. This type is Sway-back shape which has jutting back and abdomen but flat buttocks when looked from the side. Type 3 is characterized by 'H' body shape when looked from the front. This type is Pway-back shape which has flat back, abdomen and buttocks when looked from the side. The prominent breast part of this type is the most outstanding figure. Type 4 is characterized by 'X' when looked from the front. This type has a jutting waist and prominent buttocks when looked from the side.

자동차 브레이크용 튜브의 끝단 성형 공정 설계에 관한 연구 (A Study on Design of Forming Process of Tube-end for Brake of Automobiles)

  • 제원수;예상돈;민병현
    • 한국기계가공학회지
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    • 제7권4호
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    • pp.155-160
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    • 2008
  • End part of the brake tube formed with the shape of snake head is important for the braking of automobile in safety because it has to prevent crack, fracture and defects occurred during the forming process. Especially, the shape of tube end has influence on the ability of brake. Based on the procedure of process design, in this paper, the forming operation is done by finite element method and the design variables are analyzed by Taguchi method. Design variables such as the outer angle of tube end with the shape of snake head(A), the inner angle to make a hole at tube end with the shape of snake head(B) and the forming distance at tube end(C) are used. Optimization of design variables is performed to minimize the damage factor of the tube end occurred during the forming process. The value of damage factor of 0.327 was obtained under the optimal condition like $A=114^{\circ},\;B=80^{\circ}$ and C=5.3mm, respectively.

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의복원형설계를 위한 성인여성 두.견부의 형태분류 -20대 여성을 중심으로- (A Study on the Shapes of the Neck and the Shoulder in Dressmaking; young wonen age group)

  • 김희숙
    • 대한가정학회지
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    • 제36권12호
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    • pp.43-54
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    • 1998
  • From the viewpoint of clothing construction, it is necessary to grasp exactly the shapes of the neck and the shouder, such as the line of the neck base, the neck gradient, the shoulder gradient, the shape of the scapular, and the shape of the breast. In this report, factor analysis was applied to 39 items of neck & shoulder level measurements, including stature, weight, but grith, waist girth, to demonstrate the most relevant measurements for collar and bodice pattern designing, and to classify the neck and shoulder level shapes. The subjects investigated were 126 women of the age 20-29. The main results are follows : 1. For factors of body form were extracted by the factor analysis. The 1st principal component can be interpreted as "size" component, the 2nd-3th principal component is "shape" component relating to neck and shoulder level, and the 4th principal component is "shoulder shape" component. 2. With regard to factor loadings, we were able to extract the most relevant measurements for collar and bodice pattern designing. M16, M22, S26, S30, S34, S35, S36, C37, C38, C39.

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압력용기 소재에서의 표면균열의 형상변화 (Variation of Surface Crack Shape in Pressure Vessel Materials)

  • 허용학;이주진;이해무
    • 대한기계학회논문집
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    • 제14권3호
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    • pp.617-623
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    • 1990
  • 본 연구에서는 표면방향과 깊이 방향으로 표면균열의 피로성장률이 다르게 나 타나고 있는 경우의 표면균열 형상변화를 표면균열의 균열 열림을 고려하여 해석할 수 있는 식이 수정 제안되었으며, 압력용기 소재에서 측정된 표면균열의 형상변화와 본 연구에서 제안된 형상 변화식에 의한 예측과 비교 분석하였다. 또한 균열 성장과 형 상변화를 평균 응력강도계수에 대해 분석하였고 다른 표면균열 형상 변화식들에 의한 표면균열 형상변화해석이 같이 비교 검토되었다.

다양한 형상의 충전물로 채워진 충전층 집진기의 집진성능 예측 (Prediction of collection performance for a granular bed filter filled with various shapes of packing material)

  • 박재현;이명화
    • 한국입자에어로졸학회지
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    • 제19권4호
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    • pp.145-154
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    • 2023
  • Granular bed filters are widely used to remove particulate matter in flue gas and are filled with various shapes of packing material. The packing material plays an important role in determining the overall collection performance, such as pressure drop and collection efficiency. The pressure drop of a granular bed filter has been calculated using the Ergun equation, while the collection efficiency has been predicted using the log-penetration equation based on the single sphere theory. However, a prediction equation of collection efficiency for a granular bed filter filled with non-spherical packing materials has not been suggested yet. Therefore, in this study, three different shapes of packing materials (sphere, cylinder, and irregular) were prepared to propose a prediction equation. The pressure drop and collection efficiency in a granular bed filter filled with each shape of packing material were measured experimentally and compared with theoretically predicted values. We found that experimentally measured pressure drops matched well with values theoretically predicted using the Ergun equation considering the shape factor. However, experimental collection efficiencies were higher than theoretical ones predicted by the log-penetration equation using the single sphere theory. We modified the log-penetration equation by employing a shape factor and found a good relationship between experimental and theoretical collection efficiencies.

2축 편심 축하중을 받는 직사각형 고강도 RC기둥의 거동에 대한 실험적연구 (An Experimental Study in Rectangular High Strength Concrete Columns under Both Axial Load and Biaxial Bending)

  • 이종원;조문희;한경돈;유석형;반병열;신성우
    • 한국콘크리트학회:학술대회논문집
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    • 한국콘크리트학회 2001년도 가을 학술발표회 논문집
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    • pp.209-214
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    • 2001
  • Most reinforce concrete Columns of Building structure are subjected to both axial load and biaxial bending. However, It is hard to estimate the moment capacity of biaxial bending by exact solution. Thus, columns under biaxial bending are designed by approximate methods in practice. The purpose of this study is to compare experimental result with approximate methods and exact solution by computer. Parameters of the present test are compressive strength of concrete (350, 585, 650kgf/$\textrm{cm}^2$) and shape ratio of rectangular section. Ultimately, an experimental shape factor for rectangular RC column section is obtained through the test program. The shape of load contour is dominated by this shape factor obtained experimentally. So, reasonable design of RC columns subjected to both axial compression and biaxial bending depends on load contour.

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성문파형이 모음음소합성에 미치는 영향 (Effect of Glottal Wave Shape on the Vowel Phoneme Synthesis)

  • 안점영;김명기
    • 한국통신학회논문지
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    • 제10권4호
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    • pp.159-167
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    • 1985
  • 男性話者가 發音한 韓國語 母音/아, 에, 이, 오, 우/의 聲門波를 직접 抽出하여 音聲에 따라 성문파가 각각 다르다는 것을 확인하였다. 具現한 5가지의 성문파로 母音을 다시 合成하여 聲門波形이 音聲合成에 미치는 영향을 波形的으로 비교하였다. 상문파의 모양, 개방시간과 폐쇄기간에 따라 合成音聲波形은 變化가 있었으며, 聲門波形이 合成音質向上의 중요 factor로 作用함을 알 수 있었다.

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CONIFER FOREST BIOMASS ESTIMATION USING MULTI ANGLE SPECTRUM OBSERVATION

  • Kajiwara, Koji;Ono, Yuhsaku;Honda, Yoshiaki
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2008년도 International Symposium on Remote Sensing
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    • pp.394-397
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    • 2008
  • This research aimed at developing a technique for estimating the tree height using BRF (Bi-directional Reflectance Factor) through the clarification of the relation between shape of the tree crown and the tree height and the relations between the shape of the tree crown and BRF. This paper, reports the results of analyses of data acquired by field measurements done to clarify relation between crown shape and tree height.

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A STUDY ON 3D STRUCTURE DETECTION FOR FOREST TREES USING REFLECTED SPECTRUM INFORMATION

  • Ono, Yuhsaku;Kajiwara, Koji;Honda, Yoshiaki
    • 대한원격탐사학회:학술대회논문집
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    • 대한원격탐사학회 2007년도 Proceedings of ISRS 2007
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    • pp.345-348
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    • 2007
  • This research aimed at developing a technique for estimating the tree height using BRF (Bi-directional Reflectance Factor) through the clarification of the relation between shape of the tree crown and the tree height and the relations between the shape of the tree crown and BRF. This paper, reports the results of analyses of data acquired by field measurements done to clarify relation between crown shape and tree height.

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Robust Three-step facial landmark localization under the complicated condition via ASM and POEM

  • Li, Weisheng;Peng, Lai;Zhou, Lifang
    • KSII Transactions on Internet and Information Systems (TIIS)
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    • 제9권9호
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    • pp.3685-3700
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    • 2015
  • To avoid influences caused by pose, illumination and facial expression variations, we propose a robust three-step algorithm based on ASM and POEM for facial landmark localization. Firstly, Model Selection Factor is utilized to achieve a pose-free initialized shape. Then, we use the global shape model of ASM to describe the whole face and the texture model POEM to adjust the position of each landmark. Thirdly, a second localization is presented to discriminatively refine the subtle shape variation for some organs and contours. Experiments are conducted in four main face datasets, and the results demonstrate that the proposed method accurately localizes facial landmarks and outperforms other state-of-the-art methods.