The current study focuses on the modeling and analysis of acoustic scattering from an elastic membrane disc located in a cylindrical waveguide that may involve structural discontinuities. physical problem is governed by Helmholtz’s equation involves higher order boundary conditions at interfaces. Mode-Matching (MM) method conjunction with Galerkin formulation developed to solve governing value ...

Abu Dhabi’s government has taken several initiatives to improve the safety of city’s highways, such as reducing traffic accident occurrence, red light violations, and property damage associated with accidents. However, intersections are still many severe accidents, violations. To help authorities pinpoint major contributors deterioration performance signalized junctions, this study employed a n...

The paper presents the results of experimental work on assessment 3D geometry surface stereometry obtained as a result Water Jet (AWJ) water-abrasive beam cutting using an Eckert Opal WaterJet COMBO hydro-abrasive cutter. Studies geometric structures were conducted Alicona Infinite Focus microscope. article analyses selected spatial roughness parameters multilayer structure surfaces combined vu...