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Sökning: WFRF:(Abeysekera John D.A.) > (1985-1989)

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  • Abeysekera, John D.A., et al. (författare)
  • A head-model reconstruction based upon photogrammetric data from Sri Lankan adult males relevant to the design of headgear
  • 1989
  • Ingår i: Journal of Human Ergology. - 0300-8134. ; 18:2, s. 199-211
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>Due to the large variability in heads and faces in one population, the standard anthropometric dimensions of the head, measured from anatomical landmarks alone, may not suffice for the design of fitting headgear, e.g., helmets. To provide adequate data of the shapes and contours of the head to the designer, appropriate head models sculptured using comprehensive head dimensions, must be developed. This paper describes (a) a procedure of collecting comprehensive anthropometric data of the head using a photogrammetric method and (b) a simple sculpturing technique to reconstruct a head model of the user population</p>
  • Abeysekera, John D.A., et al. (författare)
  • Body size variability between people in developed and developing countries and its impact on the use of imported goods
  • 1989
  • Ingår i: International Journal of Industrial Ergonomics. - 0169-8141 .- 1872-8219. ; 4:2, s. 139-149
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>The Industrially Developing Countries (IDC) today, to a great extent, depend on Industrialized Countries (IC) for the supply of most industrial goods. An attempt has been made to ascertain the degree of design incompatibility experienced by users of these imported goods due to differences in the body sizes of people in producer and user countries. A comparative study of variations in body sizes is made from data available in literature and from anthropometric surveys. The results reveal differences in almost every part of the human body. The need for reliable anthropometric data in respect of IDC is stressed. Urgent measures are required to introduce changes in equipment, particularly for the benefit of users in IDC.</p>
  • Abeysekera, John D.A., et al. (författare)
  • Effect of the hot environment on man
  • 1988
  • Ingår i: International Symposium on Work in a Hot Environment and Heat Related Disorders, Khartoum 27-31 Jan. 1988.
  • Konferensbidrag (övrigt vetenskapligt)
  • Abeysekera, John D.A., et al. (författare)
  • Ergonomics assessment of selected dust respirators : their use in the tropics
  • 1987
  • Ingår i: Applied Ergonomics. - 0003-6870 .- 1872-9126. ; 18:4, s. 266-72
  • Tidskriftsartikel (refereegranskat)abstract
    • <p>The suitability and effectiveness of four different types of British made respirators were studied with respect to comfort, convenience and fit on wearers in Sri Lanka (a developing country). Objective and subjective assessments were made to evaluate the degree of discomfort and interferences to the use of senses. The study revealed that factors such as breathing resistance, work-rate and activity period affected the physiological responses. The weight of the respirator and the skin temperature had no direct relationship with the cardiovascular stress. Positive-pressure respirators that gave lower face temperatures than negative-pressure masks gave this type of respirator an additional advantage in hot environments. Respirators that restricted jaw movement affected the speech intelligibility of the wearer. Orinasal masks restricted vision more than the other types. The problem of fit was found negligible though head and face dimensions significantly differed between the British and the Sri Lankans. Subjective assessment correlated well with objective tests.</p>
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Abeysekera, John D.A ... (17)
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