Results 21 to 30 of about 79,010 (265)

Collection tree-oriented mesh routing optimization for extending the lifetime of wireless sensor networks

open access: yesInternational Journal of Distributed Sensor Networks, 2022
Routing optimization in wireless sensor networks facilitates to reduce the overhead of the maintaining of wireless sensor networks and extend the lifetime of wireless sensor networks.
Li-Yong Yuan, Fei-Long Lin
doaj   +1 more source

Dynamic Optimization Using Local Collocation Methods and Improved Multiresolution Technique

open access: yesApplied Sciences, 2018
Dynamic optimization has wide applications in scientific and industrial researches. Multiresolution techniques provide an efficient way to solve dynamic optimization problems but have some disadvantages. An improved multiresolution technique is developed
Jisong Zhao, Teng Shang
doaj   +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

Optimization of P2 meshes and applications.

open access: yesComput. Aided Des., 2020
Mesh optimization techniques are a way to locally modify the mesh in order to improve it with respect to a given quality criterion. To this end, this work presents the generalization of two mesh quality-based optimization operators to P2 meshes. The generalized operators consist in mesh smoothing and generalized swapping.
Feuillet, Rémi   +2 more
openaire   +1 more source

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.
Nina Amenta   +2 more
openaire   +4 more sources

Comparison of percutaneous vertebroplasty and conservative treatment for one level thoracolumbar osteoporotic compression fracture in a 3-year study

open access: yesScientific Reports, 2023
The efficacy of Mesh optimized versus standard percutaneous vertebroplasty (PVP) for osteoporotic vertebral compression fractures. Grid optimization (102 cases; 38 men, 64 women aged 67.3 ± 8.5) and traditional PVP groups (94 cases) were identified from ...
Yanchun Xie   +4 more
doaj   +1 more source

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

Optimal emulation of meshes on meshes of trees [PDF]

open access: yes, 1995
Many problems can be solved more efficiently on a mesh of trees network than on a mesh. Until now it has been an open problem whether the mesh of trees is always at least as fast as the mesh. In this paper, we present an emulation of N-node meshes on O(N)-node meshes of trees with constant slowdown, even though any embedding of a mesh into a mesh of ...
openaire   +1 more source

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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