Motion estimation and compensation is an essential part of existing video coding systems. The mesh-based motion estimation (MME) produces smoother motion field, better subjective quality (free from blocking artifacts), and higher peak signal-to-noise ratio (PSNR) in many cases, especially at low bitrate video communications, compared to the conventional block matching algorithm (BMA). Howev...

In this paper, the role of molecular diffusion in mobilization of waterflood residual oil is examined. A moving mesh method is applied to solve the moving interface problem of residual oil blobs swelling by Co2 diffusion through a blocking water phase. The results of this modeling are compared with experimental results of a 2D glass micromodel experiment. Although, the solution method is applie...

Abstract Forming of tires during production is a challenging process for Lagrangian solid mechanics due to large changes in the geometry and material properties rubber layers. This paper extends Arbitrary Lagrangian–Eulerian (ALE) formulation thermomechanical inelastic models with special consideration rubber. The ALE approach based on tracking spatial meshes used, an operator-split employed wh...

The STEP stands for the standard for exchange of product model data. It represents ISO 10303. In the STEP, the parametric design methodology is supported by various Parts. The first Part is ISO 10303-55: integrated generic resource: procedural and hybrid representation. The second Part is 10303108: integrated application resource: parameterization and constraint for explicit geometric product m...

in this paper, the role of molecular diffusion in mobilization of waterflood residual oil is examined. a moving mesh method is applied to solve the moving interface problem of residual oil blobs swelling by co2 diffusion through a blocking water phase. the results of this modeling are compared with experimental results of a 2d glass micromodel experiment. although, the solution method is applie...

A new approach for constructing a smooth subdivision surface to interpolate the vertices of an arbitrary mesh is presented. The construction process does not require setting up any linear systems, nor any matrix computation, but is simply done by iteratively moving vertices of the given mesh locally until control mesh of the required interpolating surface is reached. The new interpolation metho...

This paper presents a composite programmable graph grammar model of the three dimensional self-adaptive hp Finite Element Method (hp-FEM) algorithms. The computational mesh composed of hexahedral finite elements is represented by a composite graph. The operations performed over the mesh are expressed by composite graph grammar productions. The three dimensional model is based on the extension o...

In order to realize massive point cloud data simplification, a new movable mesh generation algorithm was proposed. Firstly, point cloud model was divided into a number of spatial grids. Secondly, the mesh generation was made like the first step again but more finely and with respecting of the distance threshold, and then, each appropriate point of the grids generated by the second step was filt...

A new computational method for creating all-hex meshes of thin-walled solids is presented. The proposed method creates an all-hex mesh in a three-step process. First, a tet mesh of the target geometric domain is created, and a layer of prism elements is inserted on the boundary of the mesh. Second, a sequence of novel topological transformations and smoothing operations is applied to reduce the...