Results 41 to 50 of about 5,478,967 (327)

Numerical product design: Springback prediction, compensation and optimization [PDF]

open access: yes, 2007
Numerical simulations are being deployed widely for product design. However, the accuracy of the numerical tools is not yet always sufficiently accurate and reliable.
Bonte, M.H.A.   +3 more
core   +3 more sources

Optimal Point Placement for Mesh Smoothing [PDF]

open access: yesJournal of Algorithms, 1999
12 pages, 3 figures. A preliminary version of this paper was presented at the 8th ACM/SIAM Symp. on Discrete Algorithms (SODA '97). This is the final version, and will appear in a special issue of J.
Amenta, Nina   +2 more
openaire   +3 more sources

Impact of 3D EM model configuration on the direct optimization of microstrip structures [PDF]

open access: yes, 2013
We apply the classical Nelder-Mead optimization algorithm to a low fidelity EM model, using different mesh and bounding-box configurations. We demonstrate that the interaction of the coarse mesh with the bounding box size can determine whether the ...
Brito-Brito, Zabdiel   +3 more
core   +1 more source

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

open access: yesIEEE 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

Incremental Visual-Inertial 3D Mesh Generation with Structural Regularities

open access: yes, 2019
Visual-Inertial Odometry (VIO) algorithms typically rely on a point cloud representation of the scene that does not model the topology of the environment. A 3D mesh instead offers a richer, yet lightweight, model.
Carlone, Luca   +3 more
core   +1 more source

On the Virtual Element Method for Topology Optimization on polygonal meshes: a numerical study [PDF]

open access: yes, 2016
It is well known that the solution of topology optimization problems may be affected both by the geometric properties of the computational mesh, which can steer the minimization process towards local (and non-physical) minima, and by the accuracy of the ...
Antonietti, Paola F.   +3 more
core   +2 more sources

A Novel Hybrid Harris Hawk-Arithmetic Optimization Algorithm for Industrial Wireless Mesh Networks

open access: yesSensors, 2023
A novel hybrid Harris Hawk-Arithmetic Optimization Algorithm (HHAOA) for optimizing the Industrial Wireless Mesh Networks (WMNs) and real-time pressure process control was proposed in this research article.
P. Arun Mozhi Devan   +4 more
doaj   +1 more source

A simulated annealing algorithm for router nodes placement problem in Wireless Mesh Networks [PDF]

open access: yes, 2011
Mesh router nodes placement is a central problem in Wireless Mesh Networks (WMNs). An efficient placement of mesh router nodes is indispensable for achieving network performance in terms of both network connectivity and user coverage.
Barolli, Admir   +3 more
core   +2 more sources

VEM AND TOPOLOGY OPTIMIZATION ON POLYGONAL MESHES [PDF]

open access: yesProceedings of the VII European Congress on Computational Methods in Applied Sciences and Engineering (ECCOMAS Congress 2016), 2016
Topology optimization is a fertile area of research that is mainly concerned with the automatic generation of optimal layouts to solve design problems in Engineering. The classical formulation addresses the problem of finding the best distribution of an isotropic material that minimizes the work of the external loads at equilibrium, while respecting a ...
ANTONIETTI, PAOLA FRANCESCA   +3 more
openaire   +3 more sources

Mesh Sensitivity Analysis of Axisymmetric Models for Smooth–Turbulent Transient Flows

open access: yesFluids
The current paper focuses on the assessment of radial mesh influence on the description of the transient event obtained by an axisymmetric model. The objective is to reduce computational effort while accurately calculating hydraulic transients in smooth ...
Pedro Leite Ferreira   +1 more
doaj   +1 more source

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