Results 21 to 30 of about 188,550 (196)

Visualizing temperature-dependent phase stability in high entropy alloys

open access: yesnpj Computational Materials, 2021
High entropy alloys (HEAs) contain near equimolar amounts of five or more elements and are a compelling space for materials design. In the design of HEAs, great emphasis is placed on identifying thermodynamic conditions for single-phase and multi-phase ...
Daniel Evans   +5 more
doaj   +1 more source

Obtaining The Finite Difference Approximation of The Lame System By Using Barycentric Coordinates

open access: yesCumhuriyet Science Journal, 2023
The elasto-plastic contact problem with an unknown contact domain (UCD) has attracted mathematicians, mechanics and engineers for decades. So, the problem of determining the stresses in the UCD is very important nowadays in terms of engineering and ...
Vildan Yazıcı
doaj   +1 more source

Three-dimensional evaluations of preoperative planning reproducibility for the osteosynthesis of distal radius fractures

open access: yesJournal of Orthopaedic Surgery and Research, 2021
Background Three-dimensional preoperative planning was applied for the osteosynthesis of distal radius fractures. The objective of this study was to evaluate the reproducibility of three-dimensional preoperative planning for the osteosynthesis of distal ...
Yuichi Yoshii   +5 more
doaj   +1 more source

Learning of Continuous and Piecewise-Linear Functions With Hessian Total-Variation Regularization

open access: yesIEEE Open Journal of Signal Processing, 2022
We develop a novel 2D functional learning framework that employs a sparsity-promoting regularization based on second-order derivatives. Motivated by the nature of the regularizer, we restrict the search space to the span of piecewise-linear box splines ...
Joaquim Campos   +2 more
doaj   +1 more source

Application of Barycentric Coordinates in Space Vector PWM Computations

open access: yesIEEE Access, 2019
This paper proposes the use of barycentric coordinates in the development and implementation of space-vector pulse-width modulation (SVPWM) methods, especially for inverters with deformed space-vector diagrams.
Pawel Szczepankowski, Janusz Nieznanski
doaj   +1 more source

High-Precision Registration of Lunar Global Mapping Products Based on Spherical Triangular Mesh

open access: yesRemote Sensing, 2022
Lunar global mapping products provide a solid data foundation for lunar scientific research and exploration. As the widespread geometric inconsistencies among multi-source mapping products seriously affect the synergistic use of the products, high ...
Zheng Bo   +7 more
doaj   +1 more source

A New Coordinate System for Constructing Spherical Grid Systems

open access: yesApplied Sciences, 2020
In astronomy, physics, climate modeling, geoscience, planetary science, and many other disciplines, the mass of data often comes from spherical sampling.
Kin Lei, Dongxu Qi, Xiaolin Tian
doaj   +1 more source

Metrical relations in barycentric coordinates [PDF]

open access: yesMathematical Communications, 2003
Let Δ be the area of the fundamental triangle ABC of barycentric coordinates and α=cot A,β =cot B, γ=cot C. The vectors $\boldsymbol{v}_i=[x_{i},y_{i},z_{i}]$ $(i=1,2)$ have the scalar product $2\Delta (\alpha x_{1}x_{2}+\beta y_{1}y_{2}+\gamma z_{1}z_{2})$. This fact implies all important formulas about metrical relations of points and lines. The main
Volenec, V.
openaire   +4 more sources

Random processes with convex coordinates on triangular graphs

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
Probabilities for reaching specified destinations and expectation values for lengths for random walks on triangular arrays of points and edges are computed.
J. N. Boyd, P. N. Raychowdhury
doaj   +1 more source

Simulation of the process of plane-radial filtration of fluid in a porous medium considering the migration [PDF]

open access: yesE3S Web of Conferences, 2023
Modeling plane-radial fluid filtration in a porous medium is considered in the article, taking into account the condition of fluid flow to a perfect well with a constant flow rate drilled in the center of the formation; the problem of identifying the ...
Ravshanov N.   +3 more
doaj   +1 more source

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