• Title/Summary/Keyword: Physical shape

Search Result 1,342, Processing Time 0.036 seconds

The effects of body mass index and body shape perceptions of South Korean adults on weight control behaviors; Correlation with quality of sleep and residence of place

  • Kang, Nam E;Kim, Seung Ju;Oh, Yoon Sin;Jang, Se-Eun
    • Nutrition Research and Practice
    • /
    • v.14 no.2
    • /
    • pp.160-166
    • /
    • 2020
  • BACKGROUND/OBJECTIVES: The obese population is rapidly increasing because of reduced physical activity and a Westernized diet; consequently, various chronic diseases are more prevalent. With the increasing interest in body shape and appearance, research on body shape perceptions and accompanying weight control behaviors are needed for healthy weight management. SUBJECTS/METHODS: A cross-sectional survey was conducted on randomly selected 536 (209 men and 327 women) aged 20 to 65 years. Body mass index (BMI), body-shape perception, weight control behavior, quality of sleep, and place of residence were collected using self-reported questionnaires. Multivariable logistic regression analysis was conducted using complex design in each groups. Collected data were analyzed using the SAS 9.4 statistical package, and the significance level was set at P < 0.05. RESULTS: When these two variables were divided into four groups, they were found to influence dieting attempts. People with abnormal weights who were dissatisfied with their body shapes attempted dieting 5.23 times more than those with healthy weights and satisfaction with their body shapes. Further, those with normal weights but dissatisfaction with their bodies attempted dieting 4.45 times more than those who were satisfied with their shapes. Subjects in their 20s attempted dieting 2.53 times more than those in their 30s and 40s, and female subjects attempted dieting 2.24 times more than male subjects. CONCLUSIONS: A correct perception of one's shape can be an important factor for dietary behavior, as body shape perceptions and dieting attempts are strongly related. Additionally, healthy weight management and nutrition education are important elements to incorporate into a weight control program aimed at preventing excessive weight control behaviors and promoting correct perceptions of body shape.

The Analysis of 3-Dimensional Shape Using Non-Metric Cameras (비측량용 카메라를 이용한 3차원 형상 해석)

  • Jeong, Soo
    • Journal of Korean Society for Geospatial Information Science
    • /
    • v.17 no.2
    • /
    • pp.91-99
    • /
    • 2009
  • In the field of geospatial information, 3D shape information has been considered as a frame data for GIS. Many kind of physical shape information is, especially, required for the works related with space, such as planning, maintenance, management, etc. Conventional photogrammetry was implemented under the conditions with expensive metric cameras and analytical plotters operated by experts. Nowadays, however, the metric cameras and analytical plotters are replaced by low price non-metric digital cameras and personal computers by virtue of the progress in digital photogrammetry. This study aims to investigate the technology to easily and promptly produce 3D shape information required in geospatial information system using close-range photogrammetry with non-metric digital cameras. As the results of this study, 3D shape of an experimental object was made out with a common compact digital camera and only a known length of a line component in the object and the accuracy of the dimension of 3D shape was analyzed to be less than one pixel.

  • PDF

A Study on Body Shape for 3D Virtual Body Shape Transformation - Focusing on the Women with age of forties - (3차원 가상바디 변형을 위한 체형연구 - 40대 여성을 대상으로 -)

  • Shin, Ju-Young Annie;Nam, Yun-Ja
    • The Korean Fashion and Textile Research Journal
    • /
    • v.17 no.2
    • /
    • pp.265-277
    • /
    • 2015
  • The aim of this study was to successfully reflect human body changes on the transformation of the virtual body within 3D virtual fitting spaces. For this purpose, existing problems of shape transformation of the virtual body were analyzed and regression equations which provides useful basic data for transformation of the virtual body that can be applied usefully to the 3D virtual fitting system was developed. Necessary data for the analyses were body measurement and 3D scan data of women with average physical form between the ages of 40 through 49. The reason that we used human body changes of the female subjects in their forties was based on the recognition that fundamental female body changes start to occur from age of forty. Body shapes were largely divided into 3 groups according to obesity which was found to be the biggest factor of shape change. Seven factors were extracted based on factor analysis of 47 body measurement categories and regression equations were created to extract specific measurements for each BMI group based on these seven factors. The major contribution of this paper can be summarized as follows. First, the regression equations to extract specific measurements based on the 7 representative variables remediated existing problem of virtual bodies as it increased the number of body shape transformation areas. Second, the regression equations helped to overcome the problem of current failing to reflecting changes in body cross-section shape based on simple girth measurements based on analysis of cross-section distances.

Rotation Invariant Color-Shape Description Method using Complex Color Model (복소 색상 모델을 이용한 회전 불변 색상-모양 기술 방법)

  • Minseok CHoi
    • The Journal of the Convergence on Culture Technology
    • /
    • v.10 no.6
    • /
    • pp.869-874
    • /
    • 2024
  • The spread of various digital devices, the development of communication and network technologies, and the spread of personal media services have led to an explosive increase in the production and distribution of multimedia content. Recognition and search of multimedia data such as images and videos requires a content-based recognition and search method that analyzes and quantifies the physical characteristics of the data and compares them. In content-based search of images, color and shape become important visual features. In this paper, a method to describe and search the spatial distribution of color regardless of image rotation using the complex color model to intergrate color and shape features is proposed. It was confirmed through experiments that by applying a rotation-invariant shape descriptor to a complex color image converted according to a complex color model, color-shape could be expressed and recognized regardless of rotation.

Comparative Study of Diagnostic Accuracy Rate by Sasang Constitutions on Measurement Method of Body Shape (체형측정 방법에 따른 사상체질 진단정확률 비교 연구)

  • Kim, Jong-Won;Sul, Yu-Kyung;Choi, Jae-Jung;Kwon, Suk-Dong;Kim, Kyu-Kon;Lee, Yong-Tae
    • Journal of Physiology & Pathology in Korean Medicine
    • /
    • v.21 no.1
    • /
    • pp.338-346
    • /
    • 2007
  • For Objectivity development of the body shape that is an importance standard for the classification of sasang constitutional medicine diagnosis, We made a comparison between Automatic & Physical measuring. This study uses 2 attitude which lies down & standing. We measured the body of patients(Width 5 places and circumference 8 places) and analyzed the anthropometric data dividing into sex, age, BMI. 296 patients's data are used in the analysis.

Development of an Evaluation Protocol for a Bus Seat (버스 승객석의 인간공학적 평가 방법 개발)

  • Park, Jangwoon;Lee, Hyewon;Choi, Younggeun;Park, Kwangae;Kim, Moonjin;You, Heecheon
    • Journal of Korean Institute of Industrial Engineers
    • /
    • v.41 no.1
    • /
    • pp.74-78
    • /
    • 2015
  • A bus seat is required to be ergonomically designed in terms of its shape and physical properties to increase seating comfort. The present study is intended to develop a systematic bus seat evaluation protocol based on seating comfort. A total of 48 participants evaluated 12 parts (seat belt, recliner, armrest, headrest, upper-back support, lumbar support, seatback bolster, seatback overall, hip support, thigh support, seatpan bolster, and seatpan overall) of 12 bus seats with 17 subjective comfort measures (e.g., convenience of control, suitability of size, and overall comfort). Lastly, ergonomic features of shape and physical properties of each seat part were identified based on the subject evaluation analysis results. The developed bus seat evaluation protocol can be applied to evaluate various types of seats.

Wind loads on solar panels mounted parallel to pitched roofs, and acting on the underlying roof

  • Leitch, C.J.;Ginger, J.D.;Holmes, J.D.
    • Wind and Structures
    • /
    • v.22 no.3
    • /
    • pp.307-328
    • /
    • 2016
  • This paper describes an investigation of the net wind loads on solar panels and wind loads on the underlying roof surface for panels mounted parallel to pitched roofs of domestic buildings. Typical solar panel array configurations were studied in a wind tunnel and the aerodynamic shape factors on the panels were put in a form appropriate for the Australian/New Zealand Wind Actions Standard AS/NZS 1170.2:2011. The results can also be used to obtain more refined design data on individual panels within an array. They also suggest values for the aerodynamic shape factors on the roof surface under the panels, based on a gust wind speed at roof height, of ${\pm}0.5$ for wind blowing parallel to the ridge, and ${\pm}0.6$ for wind blowing perpendicular to the ridge. The net loads on solar arrays in the middle portion of the roof are larger than those on the same portion of the roof without any solar panels, thus resulting in increased loads on the underlying roof structure.

The Change of the Physical Properties of Rayon/Cotton Blend Fabrics Treated with Cellulase by Addition of Silicon (셀룰라아제 처리시 실리콘 첨가에 따른 레이온/면 혼방직물의 물성변화)

  • 이선화;송화순
    • Journal of the Korean Society of Clothing and Textiles
    • /
    • v.22 no.8
    • /
    • pp.1032-1042
    • /
    • 1998
  • The purpose of this study is to measure, compare, and investigate the physical properties of rayon/cotton blend fabrics treated with cellulase and cellulase & specific degeneration silicon and to present basic data which is in development a value-added fabric. The results are as follows. The condition for the treatment of cellulase was at 55$^{\circ}C$, pH 4 and the weight loss increased as the concentration of cellulase and the treated time increased. On treatment with cellulase, the crossectional view & longitudinal view of fiber noticed remarkable crack as weight loss increased and tensile strength and elongation decreased, and pilling was enhanced remarkably. KOSHI was increased, NUMERI and FUKURAMI were decreased as weight loss increased. In the basic characteristic value of clothing wearning, shape stability and drapability were decreased, but air content was improved. On treatment with cellulase & silicon, the degree of damage in the crossectional view & longitudinal view of the fiber reduced. Tensile strength, elongation, moisture regain improved. KOSHI and FUKURAMI were reduced, NUMERI was improved rather than when it was treated with cellulase. Therefore handle was improved. In the basic characteristic value of the clothing wearing, shape stability, air content, drapability were improved.

  • PDF

The Effects of Drawing Conditions on Physical Properties of the Drawn Worsted Yarns (I) (연신공정 조건이 소모연신사의 물성에 미치는 영향 (I))

  • Han, Won-Hee;Kim, Seung-Jin;Kim, Sang-Ryong
    • Textile Coloration and Finishing
    • /
    • v.22 no.1
    • /
    • pp.51-60
    • /
    • 2010
  • This research works on the effects of drawing conditions on the physical properties of the drawn worsted yarns. The drawn worsted yarns were made by the yarn drawing system under various drawing conditions such as concentration of reducing agent, draw ratio, setting time of drawn yarn, and concentration of oxidizing agent. The drawn worsted yarns from 2/80Nm to 2/90Nm were obtained from 2/60Nm worsted yarns, the surface and cross-sectional shapes and tensile properties of these various specimens were measured and discussed with the various drawing conditions. The drawing of worsted yarn made constituent wool fiber scratched and made it changing to polygonal cross-sectional shape. The tenacity and modulus were increased with draw ratio and concentration of reducing agent. And tensile strain was increased with draw ratio, which decreased with concentration of reducing agent.