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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Novel methodologies for three-dimensional modelling of subject specific biomechanics : application to lumbopelvic mechanics in sitting and standing

Cargill, Sara C. January 2008 (has links)
This project presented a biomechanical model of the lumbosacral spine and pelvis, including novel methodologies associated with the measurement of human mechanics. This research has, for the first time, produced accurate three-dimensional geometric models of the human skeleton from living subjects using magnetic resonance imaging technology, enabling the prediction of physiological muscle action within individuals. The model was used to examine changes in the mechanics of the lumbopelvic musculoskeletal system between the standing and seated postures due to the increasing prevalence of the seated posture in the work and home environment. The outcomes of this research included a novel bone wrapping algorithm used to describe the effect of muscle-bone interactions. a novel method for creating three-dimensional in vivo spinal reconstructions using MRI, three dimensional in vivo helical axis measurements and subject specific normalised moment data.
2

¿Behaviour of semi-rigid composite beam ¿ column connections with steel beams and precast hollow core slabs.

Lam, Dennis, Fu, F. January 2006 (has links)
This paper is concerned with the behaviour of beam ¿ column connections of steel ¿ concrete composite beams with precast hollow core slabs. Experiments were carried out to investigate the joint rotation characteristics and ultimate moment capacity of these connections. Details of the test specimens, instrumentation, test set-up and test procedures are described. Results obtained for the connection moment capacity, rotation capacity and failure modes are presented. It is found that through proper design and detailing, these simple steel connections display the characteristics of a semi-rigid connection with very little extra cost.
3

児童の投球能力および投球動作における練習の効果

櫻井, 伸二, 池上, 康男, 布目, 寛幸 02 1900 (has links)
科学研究費補助金 研究種目:基盤研究(B)(2) 課題番号:10480007 研究代表者:櫻井 伸二 研究期間:1998-2000年度

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