• 제목/요약/키워드: Body Shape

검색결과 2,662건 처리시간 0.027초

Comparative analysis of sectioned-body morphometric characteristics of diploid and triploid marine medaka, Oryzias dancena

  • Park, In-Seok
    • Korean Journal of Environmental Biology
    • /
    • 제38권1호
    • /
    • pp.137-145
    • /
    • 2020
  • The sectioned-body morphometric characteristics of the diploid and triploid marine medaka, Oryzias dancena, of both sexes were examined to collect basic data on the significant differences between the diploid and triploid fish. Significant differences between the diploid and triploid fish in both sexes were observed in the body circumference anterior to the base of the pelvic fin, the body circumference anterior to the base of the anal fin, the body circumference anterior to the base of the dorsal fin, the area anterior to the base of the pelvic fin, the area anterior to the base of the anal fin, the area anterior to the base of the dorsal fin, the total height anterior to the base of the pelvic fin, the total height anterior to the base of the anal fin, the height anterior to the base of the pelvic fin, the height anterior to the base of the anal fin, the width anterior to the base of the anal fin, the belly thickness II anterior to the base of the anal fin, section shape 2-1, and section shape 4-1 (p<0.05). These measurements were greater in the triploid marine medaka of both sexes than those in the diploid marine medaka of both sexes, and they were also greater in the male diploid and triploid marine medaka than those in the corresponding female fish. Therefore, the sectioned-body morphometric dimensions were greater in the triploid males than those in the triploid females and the diploid fish in this study.

A Flow Analysis of Small Craft by Using CFD

  • Park, Ji-Yong;Jeong, Jin-Hee;Hwang, Tea-Wook;Lee, Sol-Ah;Kim, Kyung-Sung
    • Journal of Multimedia Information System
    • /
    • 제7권4호
    • /
    • pp.269-276
    • /
    • 2020
  • The small craft including jet-board for leisure are commonly smaller than the general commercial vessels. For the floating vessel, the motion analysis is significantly important component to design the shape. It is, however, hardly predicting its behavior by using conventional boundary element method due to violating small amplitude assumption for potential theory. The computational fluid dynamics method can afford to simulate such small craft, but its grid system was not able to calculate motion, because movable body disturbs the grid system by confliction. The dynamics fluid body interaction model with over-set mesh system can be dealt with movable floating body under irregular ocean wave. In this study, several cases were considered to reveal that DFBI is essential method to predict floating body motion. The single phase simulate was conducted to establish the shape perfection, and then the validated vessel was simulated with ocean waves weather DFBI option on or off. Through the comparison, the results between the cases of DFBI on and off shows significantly difference. It was claimed that the DFBI was necessary not only to calculation body motion, but also to predict accurate drag and lift force on the floating body for small size craft.

Development of Computer Vision System for Individual Recognition and Feature Information of Cow (II) - Analysis of body parameters using stereo image - (젖소의 개체인식 및 형상 정보화를 위한 컴퓨터 시각 시스템 개발(II) - 스테레오 영상을 이용한 체위 분석 -)

  • 이종환
    • Journal of Biosystems Engineering
    • /
    • 제28권1호
    • /
    • pp.65-76
    • /
    • 2003
  • The analysis of cow body parameters is important to provide some useful information fur cow management and cow evaluation. Present methods give many stresses to cows because they are invasive and constrain cow postures during measurement of body parameters. This study was conducted to develop the stereo vision system fur non-invasive analysis of cow body features. Body feature parameters of 16 heads at two farms(A, B) were measured using scales and nineteen stereo images of them with walking postures were captured under outdoor illumination. In this study, the camera calibration and inverse perspective transformation technique was established fer the stereo vision system. Two calibration results were presented for farm A and fm B, respectively because setup distances from camera to cow were 510 cm at farm A and 630cm at farm B. Calibration error values fer the stereo vision system were within 2 cm for farm A and less than 4.9 cm for farm B. Eleven feature points of cow body were extracted on stereo images interactively and five assistant points were determined by computer program. 3D world coordinates for these 15 points were calculated by computer program and also used for calculation of cow body parameters such as withers height. pelvic arch height. body length. slope body length. chest depth and chest width. Measured errors for body parameters were less than 10% for most cows. For a few cow. measured errors for slope body length and chest width were more than 10% due to searching errors fer their feature points at inside-body positions. Equation for chest girth estimated by chest depth and chest width was presented. Maximum of estimated error fur chest girth was within 10% of real values and mean value of estimated error was 8.2cm. The analysis of cow body parameters using stereo vision system were successful although body shape on the binocular stereo image was distorted due to cow movements.

A Study on Formation of Sleeves - Centering around daydress in England - (소매의 조형성에 관한 연구 -영국의 daydress를 중심으로-)

  • 김현순
    • Journal of the Korean Society of Costume
    • /
    • 제50권7호
    • /
    • pp.235-247
    • /
    • 2000
  • This study was conducted to consider the formation of sleeves from the point of view that dress is one of expressive arts. The formative meaning of a sleeve and its chronological formation according to its formative changes as an evidence showing the Internal changes of social culture were examined, centering around day dress of England in the 11th to 19th centuries. Then, sleeves were formatively classified and their aesthetic values were considered to help do formative, aesthetic expression of dress design in the present times. Literatures and references concerning the history of domestic and foreign dress were used as a method of study. The results of this study are summarized as follows. 1. In the women's dress, the formation of the sleeve focuses on aesthetic decoration. This means that in the androgentric society the status of women are subordinate socioculturally. 2. Sleeves were classified into a fitted shape and a extension shape according to the aesthetic formation. The fluted shape expressed the beauty of body with emphasis old natural body, whereas the extension shape represented aesthetic expression of decoration. 3. The formation of a sleeve has influence on forming an image of dress by making the silhouette of dress natural or distorted, expresses the harmonious beauty of the whole dress, and produces the expressional beauty that gives a distinct characteristic to a dress.

  • PDF

A Study on Bodyshape Factor according to Age Group of Adult Women (성인 여성의 연령대별 신체 형태 구성 인자의 고찰)

  • 이순원;최유경
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • 제21권2호
    • /
    • pp.292-301
    • /
    • 1997
  • The purpose of this study was to consider the bodyshape factor of adult women according to their age groups. Age groups were 20's, the first half of 30's, the last half of 30's, 40's, 50's. Factor analysis was performed and bodyshape factors were abstracted at sight of front and side line of the body. Results indicate that the bodyshape factors were different to each age groups, so, age is very important component to the change of body shape of adult women. A suggestion is when they make standard sizes of women's ready-made clothes, it is important to reflect thier characteristics of body shape according to each age groups and age can be a standard to classify the body types of adult women.

  • PDF

Study on muscle deformation and human body modeling (근육 변형 및 인체 모델링에 관한 연구)

  • 이환용;김명수;박찬모
    • 제어로봇시스템학회:학술대회논문집
    • /
    • 제어로봇시스템학회 1991년도 한국자동제어학술회의논문집(국내학술편); KOEX, Seoul; 22-24 Oct. 1991
    • /
    • pp.752-757
    • /
    • 1991
  • Recently, human body modeling with muscle deformation has become an attractive research area in computer animation. There are many modeling tools available for solids such as mechanical part. However, there are many limitations of these conventional methods in modeling flexible objects with delicate motions and shapes such as human bodies. In this paper we present a new modeling technique for human body with muscle deformation. Each muscle is represented as a generalized cylinder and its shape deformation is computed using simple algorithm. The human body is a union of muscles, bones, organs, etc. The modeling data are obtained from the information on the human anatomy. To demonstrate the feasibility of our method, we model several arm muscles and simulate the skin deformation. As a result we have obtained a realistic shape deformation.

  • PDF

A Study of Preference about Wedding Dress Design according to Body Shape for Adult Women (성인 여성의 체형 특성에 따른 웨딩드레스 디자인 선호도 연구)

  • Park, Jin-Hee;Suh, Mi-A
    • The Research Journal of the Costume Culture
    • /
    • 제14권4호
    • /
    • pp.625-634
    • /
    • 2006
  • The purpose of this study is to preview artistic presentation, factors of designing and ornamentation, to provide useful information to the wedding dress industry in developing consumer-oriented design of wedding dress. Also, this study is to investigate relativity between individual characteristics, such as demographic character and body figures, and preference of consumers, in order to learn if there is any pattern of consumers decision making, and to help consumers by giving tips for their wedding dress shopping. According to this study, I can see that when modern South-Korean adult women choose their wedding dress, they consider many factors just like silhouette, detail, fabric material and so on, then they select their own best dress by grasping their body characteristics.

  • PDF

Finite Element Springback Analysis of Vertically-Walled Auto-Body Part (수직벽을 가진 자동차 부품 성형공정의 스프링백 유한요소 해석)

  • 이두환;윤치상;신철수;조원석;구본영;금영탁
    • Transactions of Materials Processing
    • /
    • 제9권6호
    • /
    • pp.574-581
    • /
    • 2000
  • A vertically-walled auto-body part is one of the most difficult stamping parts because of angle change, wall curl, and twisting of the blank after springback as well as fracture and wrinkle. In this study, computational simulations of the vertically-walled auto-body part are carried out focusing on angle change, wall curl, and twisting after springback. Binderwrap blank shape is used in forming analysis for precise initial contacts between punch and blank. An adaptive mesh method is used in springback analysis for precise calculation of bending moments. In springback analysis, the differences of 2 and 3 dimensional analysis are compared and the effects of blank holdig force and friction coefficient are evaluated. In order to verify the validity of simulation results, they are compared with measured ones. The predicted thickness distribution and formed shape are agreed well with those of the measurement. The Predicted springback amount is less than that of the measurement.

  • PDF

Vibration of elastic and viscoelastic multilayered spaces

  • Karasudhi, P.;Liu, Y.C.
    • Structural Engineering and Mechanics
    • /
    • 제1권1호
    • /
    • pp.103-118
    • /
    • 1993
  • The near field is discretized into finite elements, and the far field into infinite elements. Closed form far-field solutions to three fundamental problems are used as the shape functions of the infinite elements. Such infinite elements are capable of transmitting all surface and body waves. An efficient scheme to integrate numerically the stiffness and mass matrices of these elements in presented. Results agree closely with those obtained by others.

A study on the torso body size and body shape classification of obese adult women (비만 성인 여성의 토르소 신체 치수 및 체형 분석)

  • Sohn, Jae-Min;Kim, Dong-Eun
    • The Research Journal of the Costume Culture
    • /
    • 제25권5호
    • /
    • pp.561-576
    • /
    • 2017
  • The purpose of this study was to classify the upper torso body types of obese Korean adult women using the 7th Korea National Anthropometric Study data and compare the body type differences according to three age groups: 20s~30s, 40s~50s, and 60s. A total of 548 adult women whose BMI was in the obese range of 25 or higher and whose age ranged from 20s to 60s were selected from the anthropometric database. Twenty-nine body measurements related to torso and arm areas important for torso and sleeve pattern development were chosen. Five drop values by differences between bust, waist, and hip circumferences were also chosen for analysis. The number of obese women increased with age. The results revealed seven factors according to the factor analysis and three obese body types based on the cluster analysis. Body type 1 (47.3% of obese women) was characterized by narrow shoulders, a small or medium torso, and a straight waist. Body type 2 (42.4% of obese women) was characterized by a defined waist and a larger lower torso than upper torso. Body type 3 (10.3% of obese women), the largest obese body type among the three types, was characterized by a large bust, large abdomen area, and long upper torso. Women in their 20s to 30s were most likely to have body type 2, women in their 40s to 50s were evenly distributed between body types 2 and 3, and women in their 60s were most likely to have body type 1.