Results 81 to 90 of about 28,522,762 (408)

Numerical and Experimental Study of High‐Speed Laser Cutting of Copper Current Collectors: Process Optimization for Quality Assessment

open access: yesAdvanced Materials Technologies, EarlyView.
This study employs a CFD model to simulate laser cutting of copper current collectors used for Li‐Ion battery production. This model predicts cut edge quality by assessing the influence of power, scanner speed, and foil thickness. Defects are classified and an optimal working area is found.
Caterina Angeloni   +3 more
wiley   +1 more source

An Accurate Block Hybrid Collocation Method for Third Order Ordinary Differential Equations

open access: yesJournal of Applied Mathematics, 2014
The block hybrid collocation method with two off-step points is proposed for the direct solution of general third order ordinary differential equations.
Lee Ken Yap   +2 more
doaj   +1 more source

Highly stable multivalue collocation methods

open access: yesJournal of Physics: Conference Series, 2020
Abstract The paper is focused on the development of A-stable collocation based multivalue methods for stiff problems. This methods are dense output extensions of discrete multivalue methods, since the solution is approximated by a piecewise collocation polynomial with high global regularity. The underlying multivalue method is assumed to
Conte Dajana   +3 more
openaire   +2 more sources

Designing Illumination Lenses and Mirrors by the Numerical Solution of Monge-Amp\`ere Equations

open access: yes, 2015
We consider the inverse refractor and the inverse reflector problem. The task is to design a free-form lens or a free-form mirror that, when illuminated by a point light source, produces a given illumination pattern on a target.
Brix, Kolja   +2 more
core   +1 more source

Diffractive Synthesis of Multipole Interference States Using Low‐Index Mesoscale Dielectric Structures

open access: yesAdvanced Photonics Research, EarlyView.
Multipole interference (MPI) plays pivotal roles in electromagnetics. In optics, it has been realized typically with the Mie resonance in high‐index, deep‐subwavelength‐scale dielectric resonators. A new, diffraction‐based MPI scheme is proposed and demonstrated with low‐index, mesoscale dielectric structures.
Rabiul Islam Sikder   +2 more
wiley   +1 more source

Exploration of Half‐Cycle Length of Converging Circular Wavy Duct with Diverging‐Outlet: Turbulent Water Dynamics

open access: yesAdvanced Theory and Simulations, EarlyView.
Increasing half‐cycles intensifies turbulence due to enhanced vortex interactions and flow separation at the diverged‐outlets. Longer wavy ducts are shown to increase flow acceleration, resulting in greater output velocities and more turbulent‐kinetic‐energy production. Wave‐period plays a crucial role in determining turbulent intensity, with amplitude
I. L. Animasaun   +2 more
wiley   +1 more source

Assessment and Comparative Study of Free and Commercial Numerical Software Packages for Lithium‐Ion Battery Modeling

open access: yesAdvanced Theory and Simulations, EarlyView.
This study evaluates the simulation capabilities of lithium‐ion battery (LIB) electrochemical simulation software packages. The benchmark simulation results reveal the impacts of parameter sensitivity to solver performance and stability. The guidelines to troubleshooting common solver failures at high current rates lowers the steep learning curve to ...
Kenneth C. Nwanoro   +2 more
wiley   +1 more source

A Crank–Nicolson collocation spectral method for the two-dimensional telegraph equations

open access: yesJournal of Inequalities and Applications, 2018
In this paper, we mainly focus to study the Crank–Nicolson collocation spectral method for two-dimensional (2D) telegraph equations. For this purpose, we first establish a Crank–Nicolson collocation spectral model based on the Chebyshev polynomials for ...
Yanjie Zhou, Zhendong Luo
doaj   +1 more source

Isogeometric collocation mixed methods for rods

open access: yesDiscrete & Continuous Dynamical Systems - S, 2016
Isogeometric collocation mixed methods for spatial rods are presented and studied. A theoretical analysis of stability and convergence is available. The proposed schemes are locking-free, irrespective of the selected approximation spaces.
F. Auricchio   +4 more
openaire   +4 more sources

A rational spectral collocation method with adaptively transformed Chebyshev grid points [PDF]

open access: yes, 2005
A spectral collocation method based on rational interpolants and adaptive grid points is presented. The rational interpolants approximate analytic functions with exponential accuracy by using prescribed barycentric weights and transformed Chebyshev ...
Tee, T. W., Trefethen, Lloyd N.
core  

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