نتایج جستجو برای: longitudinal strength
تعداد نتایج: 330662 فیلتر نتایج به سال:
The present study aims to establish comprehensive test methods to evaluate the mechanical properties of the intravascular coronary stent with a closed cell design. We focused on three important mechanical properties required to the stent, bending flexibility, radial strength, and longitudinal strength. Test apparatuses and testing procedures were then developed for precise evaluation of those p...
BACKGROUND The DNA methylation-based 'epigenetic clock' correlates strongly with chronological age, but it is currently unclear what drives individual differences. We examine cross-sectional and longitudinal associations between the epigenetic clock and four mortality-linked markers of physical and mental fitness: lung function, walking speed, grip strength and cognitive ability. METHODS DNA ...
Conservative treatment is ineffective for ossification of the posterior longitudinal ligament (OPLL) in the thoracic spine, and surgical treatment is indicated for most cases, while such cases are not often experienced. In the present study, the results of surgical management involving mainly posterior decompression for this disease were evaluated clinically. The study included 9 patients (1 ma...
Models to estimate longitudinal compressive strength of Brazilian hardwood based on apparent density
As wood is an orthotropic and natural material, there are several properties required for its use in civil construction. The apparent density has been used to estimate physical mechanical of wood, as it easy determine experimentally, unlike other determinations, which involve the equipment available only large research centers. Using Brazilian standard ABNT NBR 7190 linear non-linear regression...
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