A new technique of residual-type a posteriori error analysis is developed for the lowestorder Raviart-Thomas mixed finite element discretizations of convection-diffusion-reaction equations in twoor three-dimension. Both centered mixed scheme and upwind-weighted mixed scheme are considered. The a posteriori error estimators, derived for the stress variable error plus scalar displacement error in...

A set of equilibrium equations for a biphasic polymer gel are considered with the end purpose of studying stress and deformation in confinement problems encountered in connection with biomedical implants. The existence of minimizers for the gel energy is established first. Further, the small-strain equations are derived and related to the linear elasticity equations with parameters dependent on...

• While the safety and efficacy of Gore-Tex in vocal fold medialization surgeries has been wellestablished, various complications have also been seen, including prolonged hospital observation, infection, extrusion, dyspnea, and bleeding.1 The incidence of implant extrusion for all types of implants has been reported to be as high as 8.6% in earlier series;2 however, larger and more recent studi...

In this paper, a rate-distortion framework is proposed to define a jointly optimal displacement vector field estimation(DVFE) and quadtree segmentation technique for video coding. This technique achieves maximum reconstructed image quality under the constraint of a target bit rate for the coding of the displacement vector field, quadtree segmentation information, and the residual signal. A fast...

Character displacement is typically identified by comparing phenotypic differences in sympatry and allopatry. Recently, however, Goldberg and Lande (2006) pointed out that when phenotypic characters vary along an environmental gradient, the standard approach may fail to identify sympatric character divergence. Here we present a general analytical procedure for identifying sympatric character di...

Dose calculation for radiotherapy with protons and heavier ions deals with a large volume of path integrals involving a scattering power of body tissue. This work provides a simple model for such demanding applications. There is an approximate linearity between RMS end-point displacement and range of incident particles in water, empirically found in measurements and detailed calculations. This ...

The aim of this work is to propose a new multiphysics mode synthesis (MMS) for the thermomechanical vibration problem. present model based on state-space formulation, which consists displacement, velocity, and temperature shift. formulation symmetric unlike conventional non-symmetric displacement In proposed MMS, structural variables, are first reduced, then applied coupling term in thermal par...

A two-dimensional experimental setup has been designed to investigate the influence of process parameters during WAAM operation. This study also as a benchmark for numerical investigations such thermal-mechanical ones. Indeed, several measurements have done in-situ welding current and voltage, temperature, weld pool images local displacement. Some realized ex-situ: micro-structure residual stre...