Techniques for spherical osteotomy, such as rotational acetabular osteotomy, can help orthopaedic surgeons correct bony deformities and remove spherical acetabular components. Curved chisels are used during a spherical osteotomy, but they require skill and have a potential risk of damaging blood vessels or nerves. In order to perform a precise, quick and safe spherical osteotomy, we have develo...

in river meandering, when flow passes through a bend, reduction of flow velocity and rising hydrostatic pressure cause super elevation phenomena at outer side and reduction of water surface at inner-side of the bend. a helical motion results, causing erosion of the outer side of the bend. installation of submerged vanes on the stream bed can reduce erosion of the outer bank significantly. in th...

................................................................................................................................... xi Acknowledgements ................................................................................................................. xii Chapter 1 General Introduction ...................................................................................................

We demonstrate experimentally the x-ray lithography techniques to fabricate micro structures on curved surfaces such as convex and cylinder surfaces. In order to realize fabricate micro structures on curved surface, two x-ray lithography methods are described. One method is double x-ray exposures method with moving resist stage, the other is flexible mask on curved surface with rotating the res...

conclusions the current study showed the effectiveness of hbm in adoption of nutrition and walking behaviors as well as the increase of bone density to prevent osteoporosis. results immediately and six months after the intervention, a significant increase was found in the intervention group’s health beliefs, nutrition, and walking performances to prevent osteoporosis. six months after the inter...

A method is developed for solving the two dimensional Helmholtz equation in a duct with varying cross-section region bounded by a curved top and flat bottom, having one region inside. To compute the propagation of sound waves in a curved duct with a curved internal interface is difficult problem. One method is to transform the wave equation into a solvable form and making the curved interface p...

Visual discrimination, categorical identification, and categorical rating measurements were made on sets of curved-line stimuli drawn from a theoretically uniform continuum with curvature parameter s. In Experiment 1, discriminability of pairs of curved lines separated by a constant distance on the s scale was measured at successive points along the scale. Curved lines were presented four at a ...

background motor intervention plays an important role in reducing the disabilities of down syndrome (ds). a lack of balance and postural control has created motor problems in ds patients. therefore, the aim of this study was to examine the effect of backward walking on postural stability of ds patients. materials and methods sixteen ds children with 8-10 age range were selected by convenience s...