Figure 1: Variable FOV sampling patterns and resulting PSFs: (top) 2D PR elliptical FOV, (middle) PROPELLER oval FOV, (bottom) 3D PR cylinder with an elliptical base. Introduction: Radial-based imaging trajectories, such as projection-reconstruction, cones, and PROPELLER, have many applications [1-4] because of their increased robustness to motion and flow over Cartesian trajectories, and suppo...

Heavy-duty vehicle hydrodynamic mechanical automatic transmission shifting operation system was designed, mathematical model of its simplified hydraulic system was established and simulation model of shifting operation system was established with AMESim, the simulation experiment was carried out, then oil pressure curves of each clutch hydraulic cylinder were obtained when giving forward gear o...

in this paper, simulation and analysis of thin steel cylindrical shells with elliptical cutouts under oblique loading were studied using finite element method. first, the numerical results were validated by the results of experimental test performed by an instron 8802 servo hydraulic machine. also, the effect of cutout angle (θ), cutout size, cutout position (l0/l) and cutout aspect ratios (b/a...

This research presents a method to design non-circular planetary gear. Therein the satellite gear block consists of eccentric cycloidal and elliptical gear, which have been given. The mathematical equations two ring gears are set up according gearing theory considering undercutting conditions. A numerical calculation program was written in Matlab calculate dynamically analyze this examples pres...

A sequence of rainbows is produced in light scattering by a particle of high symmetry in the short-wavelength limit, and a supernumerary interference pattern occurs to one side of each rainbow. Using both a ray-tracing procedure and the Debye-series decomposition of first-order perturbation wave theory, I examine the spacing of the supernumerary maxima and minima as a function of the cylinder r...

In this research, the behavior and characteristics of the wake of flow in an elliptic cylinder with zero angle of attack in the presence of a tripping wire were investigated experimentally. For this purpose, the used an Aluminum cylinder with an elliptical cross section of the major and minor axis of 42.4 mm and 21.2 mm, respectively, and of the height of 390 mm. The cylinder model was examined...