• Title/Summary/Keyword: S-shape

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A Study on the Classification of Lower Body Shape Type for Fit Evaluation of Slacks (슬랙스 맞음새 평가를 위한 하반신 체형 유형화에 관한 연구)

  • Kim, Seonyoung;Nam, Yunja
    • Journal of Fashion Business
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    • v.20 no.2
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    • pp.181-196
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    • 2016
  • This study intended to suggest criteria for selection of subjects by lower body shape types necessary for evaluating slacks. For this, the characteristics were examined by lower body parts which would influence the fit of slacks on 3D human body shape data of the front and sides of the lower body for lower body shaping. The frequency of subjects by lower body shape types and the boundary points for discrimination of each type were suggested so that they could be available in selecting subjects. Using the data from Size Korea(2004), indirect measurement values measured on the front and sides of the lower body among 3D human body shape data of 175 subjects were analyzed. Their height, waist, and hip circumference fell under the range of standard deviation based on the mean of women aged 18~24 years, and then lower body shaping was conducted by combining the front and side shapes of the lower body. The front of the lower body was classified into four sections: average waist/average hip type(F1), average waist/narrow hip tyle(F2), narrow waist/narrow hip type(F3) and narrow waist/wide hip type(F4) and the sides of the lower body were divided into four sections: average abdomen/average hip type(S1), flat abdomen/average hip type(S2), average abdomen/protrude hip type(S3)and round abdomen/flat hip type(S4), and thus total 16 lower body types were created by cross analysis. Besides, discriminant analysis suggested the boundary points for each shape type of the front and sides of the lower body as a criterion for deciding lower body shape type of each subject

Analysis of body shape and anthropometric measurements of US middle-aged women using 3D body scan data

  • Kim, Dong-Eun
    • The Research Journal of the Costume Culture
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    • v.23 no.4
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    • pp.726-736
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    • 2015
  • The apparel industry has recently been recognizing the important target market of middle-aged women. The aim of this study was to examine the anthropometric characteristics of US women of 46 to 65 years of age and identify distinctive body shape characteristics of US middle-aged women. A total of 1915 middle-aged women whose ages ranged from 46 to 65 were selected from the SizeUSA database. The age range was divided into two groups: 46-55 and 56-65. Twenty-four body measurements important for apparel development were chosen. Four factors-Girth Factor, Height Factor, Hip Drop Factor, and Bust Drop Factor-accounted for the US middle-aged women's body measurements. The body shapes were classified into four body shapes, which were Y-Shape in the overweight range, S-Shape in the overweight range, H-Shape in the overweight range, and the A-Shape in obese range. H-Shape, which was the least-defined waist in relation to the bust and hips with a short height, existed more in older middle-aged women than in younger middle-aged women. Y-Shape, S-Shape, and A-Shape existed more in the group of younger middle-aged women than in the group of older middle-aged women. In addition, compared with the younger middle-aged women, older middle-aged women had narrower shoulders, a larger waist, thinner legs, and a longer distance between side neck to bust point. The findings from the current study may be applied in the apparel industry for developing clothing sizing systems for US middle-aged women.

The Effect of Delamination Shape Factor, $f_s$ on the Delamination Growth Rate, $dA_D/da$ in FRMLs (층간분리 형상계수($F_s$)가 FRMLs의 층간분리 성장률($dA_D/da$)에 미치는 영향)

  • 송삼홍;이원평;김광래;김철웅
    • Proceedings of the Korean Society of Machine Tool Engineers Conference
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    • 2003.04a
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    • pp.398-404
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    • 2003
  • Most previous researches for the hybrid composite materials such as FRMLs(Al/AFRP, Al/GFRP) have evaluated the fatigue delamination behavior using the traditional fracture mechanism. However, most previous researches have not generally been firmed yet. Because delamination growth behavior in hybrid composite should be consider delamination growth rate, $dA_D$/da using the delamination shape factors, fs instead of traditional fracture mechanic parameters. The major purpose of this study was to evaluate the relationship between delamination shape factor, fs and delamination growth rate, $dA_D$ . And a propose parameter on the delamination aspect ratio, b/a. The details of the study are as follow : 1) Relationship between crack length, a and delamination width,b. 2) Relationship between delamination aspect ration, b/a and delamination area rate,($(A_D)_{N}(A_D)_{ALL}$. 3) Variation of delamination growth rate, $dA_D/da$ was attendant on delamination shape factors, $fs_1$, $fs_2$, $fs_3$. The test results indicated the delamination growth rate depends on delamination shape factors.

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Unveiling the Unconscious Mindset about the Ideal Body -Suggestions for Fashion Education

  • Jung Soo Lee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.47 no.3
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    • pp.409-424
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    • 2023
  • This study aimed to reveal prospective fashion designers' predominant perceptions regarding the ideal body size and shape and to suggest an educational guideline for the design process. Sketch tasks and surveys involving the college students in a fashion design department were conducted over the course of a year. A total of 113 participants designed a white cotton shirt for women in their 30s and 40s. Immediately after the sketching task, the participants answered survey questions on the specific body sizes and shapes they had been picturing. According to the results, the participants designed shirts for a medium-sized, hourglass body shape. As the percentage of women in their 30s and 40s with an hourglass shape is low, a discrepancy exists between the ideal design and the body of the actual consumer. Furthermore, 55% of the participants indicated that they would change the design for a woman with a different body shape. The majority of the participants agreed that understanding the body shape and size is important when initiating ideas. These findings can help educators understand the importance of improving designers' awareness of various body sizes and shapes; they also suggest new directions for fashion design education.

Aerodynamic Characteristics for various front shapes of High Speed Train (고속열차의 선두부 형상에 따른 공력특성 변화)

  • Lee S. C.;Kim S. L.;Hur N.
    • 한국전산유체공학회:학술대회논문집
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    • 1995.10a
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    • pp.49-54
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    • 1995
  • A numerical analysis on the effect of the front shape on the aerodynamic characteristics of HST model is made, using FVM based general purpose 3D Navier-Stokes eq. solver, TURBO-3D program. Numerical solutions are compared with each case of different front shape for HST model. The result shows a good quantitative aerodynamic characteristic tendencies for variation of front shape of HST. Thus it may be used as a basis in the design of the shape of real HST.

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NUMERICAL SOLUTION OF A KYNAMIC SHAPE CONTROL PROBLEM

  • Choi, Wan-Sik;Belbas, Stavros A.
    • 제어로봇시스템학회:학술대회논문집
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    • 1995.10a
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    • pp.275-278
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    • 1995
  • In this paper, we consider a dynamic shape control problem with an example of controlling a flexible beam shape. Mathematical formulations are obtained by employing the Green's function approach. Necessary conditions for optimality are derived by considering the quadratic performance criteria. Numerical results for both of the dynamic and the static cases are obtained and compared.

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A Design Optimization Study of Diffuser Shape in a Supersonic Inlet

  • Lim, S.;Koh, D.H.;Kim, S.D.;Song, D.J.
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • 2008.03a
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    • pp.756-760
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    • 2008
  • Optimum shape of Double-cone supersonic inlet is studied by using numerical methods. Double-cone intake shape is used for the design optimization study. And the total pressure recovery at the exit is used to assess the aerodynamic performance of the inlet.

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A Study on Foot Shape by 3D Data of Female High School Students (3차원 데이터에 의한 여고생의 발 형태에 관한 연구)

  • Lee, Jeong-Eun;Do, Wol-Hee
    • Journal of the Korean Society of Clothing and Textiles
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    • v.38 no.4
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    • pp.572-583
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    • 2014
  • This study analyzes the foot shape of female high school students using 3D foot scan data based on a comparison with adult women (20s'-30s'). Data were collected from the foot anthropometry of 199 female high school students in Gwangju and Jeollanam-do. The right foot was measured indirectly by 3D laser scanner. There are 16 items in the foot anthropometric measurements. The $6^{th}$ Size Korea (measured by 3D scan data) is used for women's foot data. The results of the 3D measurements data investigation show that the foot length and foot width became longer and wider as the age increased. It is classified by three types after analyzing foot shape. Type 1 (28.1%) represented the shortest foot length, the narrowest foot width as well as the thick foot and long ankle shape. Type 2 (4.3%) represented the wide foot width such as the wide lateral ball width and semi-thickness shape. Type 3 (67.7%) referred to the widest foot width, flat foot and short ankle shape.

Research on Perception of Pre-service Teachers in Experiments of 'the Earth's Shape' of Each Stage of School (학교 급별에 적합한 '지구의 모양' 실험에 대한 예비교사의 인식 연구)

  • Han, Je-jun;Chae, Dong-hyun
    • Journal of the Korean Society of Earth Science Education
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    • v.11 no.2
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    • pp.107-115
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    • 2018
  • To learn the Earth's shape is a very important achievement standard in the earth science education. The purpose of this study is for helping school experiments by investigating effective experiments of the Earth's shape of each stage of school. Researchers suggest various experiment methods to learn the Earth's shape and investigated appropriate experiments to stage of elementary school, secondary school, high school and university for 26 pre-service teachers. As a result, there is difference between schools in effective experiments of the Earth's shape. Pre-service teachers thought that to observe a sail of ship to come back to a harbour is effective for elementary school students. And they responded that to compare the altitude of the polar star by latitudes is good for the secondary and high school students and to compare difference of sight according to height of the ground is effective for university students. They thought that level of the experiment method, abstract thinking and depth of background knowledge should be considered when teachers choose an effective experiment of the Earth's shape.

Minimization of Crop Length by Sizing Press in Hot Rolling Mill (열간 조압연 공정에서 2단 사이징 프레스에 의한 크롭 최소화)

  • Heo, S.J.;Lee, S.H.;Lee, S.J.;Lee, J.B.;Kim, B.M.
    • Transactions of Materials Processing
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    • v.17 no.8
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    • pp.619-626
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    • 2008
  • In this study, design methodology to determine optimal shape of the anvil in sizing press process has been proposed to minimize crop length of the AISI 1010 slab in horizontal rolling after width reduction. Shape of anvil were selected to 12 cases by design of experiment, and the dog-bone shapes and the crop length were determined by FE-analysis. Also, the anvil shape, which has minimum crop length, were determined by artificial neural network(ANN). As a result of FE-analysis, it can be seen that the crop length was increased with increasing center thickness in the dog-bone shape after width reduction. The anvil shape which has minimum crop length, was estimated to ${\theta}_{1}=21^{\circ}{\theta}_{2}=14^{\circ}$ by FE-analysis and ANN.