As an important means of medical imaging, elastic imaging is indispensable part mobile telemedicine. Ultrasound elastography has become a research hotspot because it can accurately measure soft tissue lesions. Displacement estimation the most step in ultrasound elastography. At present, phase zero search method accurate and fast displacement method. However, when exceeds 1/4 wavelength, invalid...

This paper presents the effect of centrifugal load in functionally graded (FG) hollow sphere subjected to uniform magnetic field. Analytical solution for stresses and perturbation of the magnetic field vector are determined using the direct method and the power series method. The material stiffness, the magnetic permeability and the density vary continuously across the thickness direction accor...

In this paper, the interface crack of two non-homogenous functionally graded materials is studied. Subsequently, with employing the displacement method for fracture of mixed-mode stress intensity factors, the continuous variation of material properties are calculated. In this investigation, the displacements are derived with employing of the functional graded material programming and analysis o...

in this paper, a thermoelasticity solution for steady state response of thick cylinders which are subjected to pressure and external heat flux in inner surface is presented. displacement field obeys the kinematics of the first order shear deformation theory (fsdt). it is assumed that the temperature varies both along the length and the thickness. the variation of the temperature occurs linearly...

A new method for moving target detection, localization, and velocity estimation using SAR raw data is presented which allows the determination of the target’s complete velocity vector. The method is applicable if the target has either a tangential velocity ( I l l # 0) or a radial acceleration ( ~ I R # 0), or both. It is based on the analysis of the Doppler rate map which is obtained from the ...

Trivariate data arise in a wide range of industrial and medical applications. Some of the most powerful techniques for visualizing these data involve computing piece-wise linear approximations to isocontours of the data WMW86, LC87]. This paper describes a simple optimization that may be applied to the piecewise linear approximations produced by these techniques. The beneets of this optimizatio...