Abstract—This paper reports an experimental investigation of the energy spectrum of turbulent velocity fields at low Reynolds numbers (Rλ) in grid turbulence. Hot wire measurements are carried out in grid turbulence with subjected to a 1.36:1 contraction of the wind tunnel. Three different grids are used: (i) large square perforated grid (mesh size 43.75 mm), (ii) small square perforated grid (...

objectives: indicators of oral health-related quality of life (ohrqol) in children are widely adopted to evaluate the effects of oral problems. recently, the scale of oral health outcomes for 5-year-old children (soho-5) was developed based on the children’s self-reports. this study aimed to evaluate the validity and reliability of the persian version of the questionnaire in a sample of iranian...

Abstract Background/Aim Measuring how hernia meshes shrink after implantation is a commonly used parameter in vivo mesh testing. We aim to use fibroblast populated collagen matrices (FPCMs) and their contraction assess different shrink. Methods/Materials 1 millilitre circular FPCMs were formed 24 well plates. Different placed halfway through the so that they embedded. Matrices seeded with immor...

INTRODUCTION Prosthetic mesh infection constitutes one of the major complications following hernia repair. Antimicrobial, non-antibiotic biomaterials have the potential to reduce bacterial adhesion to the mesh surface and adjacent tissues while avoiding the development of novel antibiotic resistance. This study assesses the efficacy of presoaking reticular polypropylene meshes in chlorhexidine ...

This paper describes an approach to construct unstructured tetrahedral and hexahedral meshes for a domain with multiple materials. We have developed an octree-based isocontouring method to construct unstructured 3D meshes for a single material domain. Based on it, we analyze each material change edge instead of sign change edge to figure out interfaces between two materials, and mesh each mater...

This paper describes an approach to construct unstructured tetrahedral and hexahedral meshes for a domain with multiple materials. In earlier works, we developed an octreebased isocontouring method to construct unstructured 3D meshes for a single-material domain. Based on this methodology, we introduce the notion of material change edge and use it to identify the interface between two or severa...

This paper presents an efficient technique to enhance the realism of character animation by adding muscle dynamics. Focusing on the isometric contraction of muscles, the proposed algorithm takes normal mesh and clenched mesh, and uses the disparity between them to simulate the skin vibration. The skin simulation algorithm is integrated with an example-based skinning, and shows real-time perform...

Abstract We consider a second-order elliptic boundary value problem with strongly monotone and Lipschitz-continuous nonlinearity. design study its adaptive numerical approximation interconnecting finite element discretization, the Banach–Picard linearization, contractive linear algebraic solver. In particular, we identify stopping criteria for solver that on one hand do not request an overly ti...

Because of its simplicity, the vertex pair contraction operation became very popular in mesh simplification. It allows for topological changes during simplification. In this paper we propose the use of the additional pair contractions of a vertex and an edge or a triangle and of two edges. The generalized contraction operations have several advantages over simple vertex pair contraction. They a...

This paper describes a comprehensive and high-fidelity finite element meshing approach for patient-specific arterial geometries from medical imaging data, with emphasis on cerebral aneurysm configurations. The meshes contain both the blood volume and solid arterial wall, and are compatible at the fluid-solid interface. There are four main stages for this meshing method: 1) Image segmentation an...