• 제목/요약/키워드: body application

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Relationship between Representative Anthropometric Dimensions and Income Levels for Korean

  • Kee, Do-Hyung
    • 대한인간공학회지
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    • 제31권1호
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    • pp.255-259
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    • 2012
  • Objective: This study aims to investigate relationship between representative anthropometric dimensions and income levels for Korean from 1958 to 1989. The anthropometric dimensions include stature and body weight, and GNP per head was used as an index of income level. Background: Although anthropometric dimensions were affected by varying factors such as genetic, environmental and socioeconomic factors, most studies on anthropometry have focused on measurement methods, providing data and their characteristics. Method: Anthropometric data were retrieved from homepages of Korean Agency for Technology and Standards, and Ministry of Culture, Sports & Tourism, and GNPs per head by year from Korean Statistical Information Service. Results: During analysis period, statures and body weights for males and females increased by 6.4cm and 6.1cm, 10.7kg and 4.0kg, respectively. Infants' stature and body weight nearly linearly increased with GNPs per head. Anthropometric dimensions of stature and body weight were very positively correlated with GNPs per head. Conclusion: This study revealed that income levels significantly affect stature and body weight. Application: The results would be used as a valuable basic data when establishing government policies related to anthropometry.

알루미늄 경량 차체의 충돌에너지 흡수 성능 향상을 위한 설계 개선 연구 (Crashworthiness Design Concepts for the Improved Energy Absorbing Performance of an Aluminum Lightweight Vehicle Body)

  • 김범진;허승진
    • 한국자동차공학회논문집
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    • 제11권3호
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    • pp.155-160
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    • 2003
  • For the weight reduction of vehicle body up to 20∼30% compared to the conventional monocoque steel body·.in-white, most automotive manufacturers have attempted to develop the aluminum intensive body-in-white using an aluminum space frame. In this paper, the crush tests and simulations for the aluminum extrusions filled with the structural from are performed to evaluate the collapse characteristics of that light weighted material. From these studies. the effectiveness of structural for is evaluated in improving automotive crashworthiness. In order to improve the improve energy absorption capability of the aluminum space frame body, safety design modifications are performed and analyzed based on the suggested collapse initiator concepts and on the application of the aluminum extrusions filled with structural foam. The effectiveness of these design concepts on the frontal and side impact characteristics of the aluminum intensive vehicle structure is investigated and summarized.

APPLICATION OF WHOLE BODY COUNTER TO NEUTRON DOSE ASSESSMENT IN CRITICALITY ACCIDENTS

  • Kurihara, O.;Tsujimura, N.;Takasaki, K.;Momose, T.;Maruo, Y.
    • Journal of Radiation Protection and Research
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    • 제26권3호
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    • pp.249-253
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    • 2001
  • Neutron dose assessment in criticality accidents using Whole Body Counter (WBC) was proved to be an effective method as rapid neutron dose estimation at the JCO criticality accident in Tokai-mura. The 1.36MeV gamma-ray of $^{24}Na$ in a body can be detected easily by a germanium detector. The Minimum Detectable Activity (MDA) of $^{24}Na$ is approximately 50Bq for 10miniute measurement by the germanium-type whole body counter at JNC Tokai Works. Neutron energy spectra at the typical shielding conditions in criticality accidents were calculated and the conversion factor, whole body activity-to-organ mass weighted neutron absorbed dose, corresponding to each condition were determined. The conversion factor for uncollied fission spectrum is 7.7 $[(Bq^{24}Na/g^{23}Na)/mGy]$.

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동적-외연적 유한요소법을 이용한 차체 판넬 성형해석에 관한 연구 (A Study of Auto-body Panel Correction of Forming Analysis that Use Dynamic-extensive Finite Element Method)

  • 정동원;황재신
    • 한국정밀공학회지
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    • 제21권10호
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    • pp.115-126
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    • 2004
  • In the present work a finite element formulation using dynamic-explicit time integration scheme is used for numerical analysis of auto-body panel stamping processes. The lumping scheme is employed for the diagonal mass matrix and dynamic explicit formulation. Analyzed auto-body panel stomping process correction of forming using software called Dynaform using dynamic extensive method. Further, the simulated results for the auto-body panel stamping processes are shown and discussed. Its application is being increased especially in the automotive industrial area for the cost reduction, weight saving, and improvement of strength.

A numerical simulation method for the flow around floating bodies in regular waves using a three-dimensional rectilinear grid system

  • Jeong, Kwang-Leol;Lee, Young-Gill
    • International Journal of Naval Architecture and Ocean Engineering
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    • 제8권3호
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    • pp.277-300
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    • 2016
  • The motion of a floating body and the free surface flow are the most important design considerations for ships and offshore platforms. In the present research, a numerical method is developed to simulate the motion of a floating body and the free surface using a fixed rectilinear grid system. The governing equations are the continuity equation and Naviere-Stokes equations. The boundary of a moving body is defined by the interaction points of the body surface and the centerline of a grid. To simulate the free surface the Modified Marker-Density method is implemented. Ships advancing in regular waves, the interaction of waves by a fixed circular cylinder array and the response amplitude operators of an offshore platform are simulated and the results are compared with published research data to check the applicability. The numerical method developed in this research gives results good enough for application to the initial design stage.

The NURBS Human Body Modeling Using Local Knot Removal

  • Jo, Joon-Woo;Han, Sung-Soo
    • Fibers and Polymers
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    • 제6권4호
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    • pp.348-354
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    • 2005
  • These days consumers' various demands are accelerating research on apparel manufacturing system including automatic measurement, pattern generation, and clothing simulation. Accordingly, methods of reconstructing human body from point-clouds measured using a three dimensional scanning device are required for apparel CAD system to support these functions. In particular, we present in this study a human body reconstruction method focused on two issues, which are the decision of the number of control point for each sectional curve with error bound and the local knot removal for reducing the unusual concentration of control points. The approximation of sectional curves with error bounds as an approximation criterion leads all sectional curves to their own particular shapes apart from the number of control points. In addition, the application of the local knot removal to construction of human body sectional curves reduces the unusual concentration of control points effectively. The results may be used to produce an apparel CAD system as an automatic pattern generation system and a clothing simulation system through the low level control of NUBS or NURBS.