Results 51 to 60 of about 1,741,379 (297)

Effects of cropping, smoothing, triangle count, and mesh resolution on 6 dental topographic metrics.

PLoS ONE, 2019
Dental topography is a widely used method for quantifying dental morphology and inferring dietary ecology in animals. Differences in methodology have brought into question the comparability of different studies. Using primate mandibular second molars, we
Michael A Berthaume, Julia Winchester, Kornelius Kupczik   +2 more
doaj   +1 more source

A Data-Driven Approach for Simultaneous Mesh Untangling and Smoothing Using Pointer Networks

IEEE Access, 2020
Poorly-shaped and/or inverted elements negatively affect numerical simulation accuracy and efficiency. Most current approaches consider mesh quality improvement and mesh untangling problems as numerical optimization problems and solve them using ...
Jibum Kim, Junhyeok Choi, Woochul Kang
doaj   +1 more source

A Hybrid Approach for Optimizing Planar Triangular Meshes

, 2012
Modified Direct Method (MDM) is an iterative scheme based on Jacobi iterations for smoothing planar meshes [4]. The basic idea behind MDM is to make any triangular element be as close to an equilateral triangle as possible.
Mei, Gang, Tipper, John C., Xu, Nengxiong   +2 more
core   +1 more source

Finite element based surface roughness study for ohmic contact of microswitches [PDF]

, 2012
Finite element method (FEM) is used to model ohmic contact in microswitches. A determinist approach is adopted, including atomic force microscope (AFM) scanning real contact surfaces and generating rough surfaces with three-dimensional mesh.
Broue, Adrien, Colin, Stephane, Leray, Dimitri, Liu, Hong, Pons, Patrick   +4 more
core   +3 more sources

Improved Mesh Reconstruction With an Edge Quality Enhancement Using Multiple Inward Depth Streams

IEEE Access, 2022
This paper presents a complete 3D model reconstruction of an object with edge quality enhancements using multiple inward depth sensors to create closed 3D model.
Sasadara B. Adikari, Naleen Ganegoda, Ravinda Meegama, Indika L. Wanniarachchi   +3 more
doaj   +1 more source

Multi-compartment head modeling in EEG: Unstructured boundary-fitted tetra meshing with subcortical structures.

PLoS ONE, 2023
This paper introduces an automated approach for generating a finite element (FE) discretization of a multi-compartment human head model for electroencephalographic (EEG) source localization.
Fernando Galaz Prieto, Joonas Lahtinen, Maryam Samavaki, Sampsa Pursiainen   +3 more
doaj   +1 more source

Local high-order regularization and applications to hp-methods

, 2015
We develop a regularization operator based on smoothing on a locally defined length scale. This operator is defined on $L_1$ and has approximation properties that are given by the local regularity of the function it is applied to and the local length ...
Karkulik, Michael, Melenk, Jens Markus
core   +2 more sources

Feasibility and Tolerability of Performing Portable MRI for Neurological Disorders in an Outpatient Neurology Clinic: A Prospective Cohort

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Accessing brain magnetic resonance imaging (MRI) can be challenging, especially for underserved patients, which may lead to disparities in neurological diagnosis. Method This mixed‐methods study enrolled adults with one of four neurological disorders: mild cognitive impairment or dementia of the Alzheimer type, multiple sclerosis ...
Maya L. Mastick, Nomin Enkhtsetseg, Joseph Sadok, Matheus Mochetti, Annabel Sorby Adams, Jennifer Guo, Cristina Trapaga Hacker, Isabella Gomez Hjerthen, Seungwon Lee, Siddharth Satish, Andrew S. Ham, Justin Hill, Denis Balaban, Kevin Kyle, Rebecca L. Gillani, Marcelo Matiello, Aleksandar Videnovic, Eric C. Klawiter, W. Taylor Kimberly, Farrah J. Mateen   +19 more
wiley   +1 more source

Medical image upsampling algorithm to reduce errors in grid-based ultrasound simulation [PDF]

JASA Express Letters
Clinical imaging resolution is often insufficient for accurate ultrasound simulation in personalised treatment planning. Naive image upsampling algorithms introduce artifacts that reduce simulation accuracy. We develop a Gaussian smoothing and mesh-based
Donny Liangpu Liu, Rui Xu
doaj   +1 more source

h-multigrid agglomeration based solution strategies for discontinuous Galerkin discretizations of incompressible flow problems [PDF]

, 2017
In this work we exploit agglomeration based $h$-multigrid preconditioners to speed-up the iterative solution of discontinuous Galerkin discretizations of the Stokes and Navier-Stokes equations.
Bassi, Francesco, Botti, Lorenzo, Colombo, Alessandro   +2 more
core   +2 more sources