In this paper, the oscillating two-dimensional laminar flow about a cylinder and the oscillation of a cylinder in still water are studied. A finite volume method is applied to solve the Navier Stokes equations using SIMPLEC algorithm on a body fitted co-located O-type grid. In this study, the non-dimensional flow numbers, Keulegan-Carpenter and Stokes’ numbers are chosen over a range where diff...

Background: An oscillating bone saw is rarely used to perform laminectomy. The purpose of this study was to describea relatively quick and harmless technique for multilevel laminectomy in patients with lumbar spinal stenosis (LSS) usingan oscillating bone saw to find out how this instrument affects the time of surgery and rate of complications.Methods: This prospective study w...

In this paper we study the global dynamics of inverted spherical pendulum with a vertically vibrating suspension point in presence an external horizontal periodic force field. We do not assume that field is weak or rapidly oscillating. prove there always exists non-falling solution, i.e., initial condition such rod never becomes along corresponding solution. also show numerically asymptotically...