Results 11 to 20 of about 380,680 (312)

Algorithmic Aspects of Simulation of Magnetic Field Generation by Thermal Convection in a Plane Layer of Fluid

open access: yesMathematics, 2023
We present an algorithm for numerical solution of the equations of magnetohydrodynamics describing the convective dynamo in a plane horizontal layer rotating about an arbitrary axis under geophysically sound boundary conditions. While in many respects we
Daniil Tolmachev   +2 more
doaj   +1 more source

WIDEBAND SATCOM MODEL: EVALUATION OF NUMERICAL ACCURACY AND EFFICIENCY [PDF]

open access: yesISPRS Annals of the Photogrammetry, Remote Sensing and Spatial Information Sciences, 2020
The spectral method is typically applied as a simple and efficient method to solve the parabolic wave equation in phase screen scintillation models.
A. J. Knisely, A. J. Terzuoli
doaj   +1 more source

How Does the Accuracy of Children’s Number Representations Influence the Accuracy of Their Numerical Predictions?

open access: yesFrontiers in Psychology, 2022
Predictions begin with an extrapolation of the properties of their underlying representations to forecast a future state not presently in evidence. For numerical predictions, sets of numbers are summarized and the result forms the basis of and constrains
Bradley J. Morris   +4 more
doaj   +1 more source

A Numerical Accuracy Consideration in Polynomial Deflation [PDF]

open access: yesMathematics of Computation, 1978
In a recent paper, Peters and Wilkinson described a composite deflation method which provides an accurate technique for the determination of the roots of a polynomial where these roots are widely spaced. By examples involving deflation by linear factors they demonstrated that the method was much more accurate than forward or backward deflation.
O'Neill C.J., Downs T.
openaire   +3 more sources

Target Association of Heterogeneous Sensors Based on Nearest-neighbor and Topology

open access: yesLeida xuebao, 2012
A new data association algorithm is proposed in this paper for heterogeneous sensors information fusion system, which consists of Radar and high-dynamic-range IR, based on joint usage of the nearest-neighbor (NN) and the topology similarity. The proposed
Yuan Ding-bo   +3 more
doaj   +1 more source

Accuracy issues for numerical waveforms

open access: yesPhysical Review D, 2012
version accepted to ...
Zlochower, Yosef   +2 more
openaire   +3 more sources

Numerical Magnitude Affects Accuracy but Not Precision of Temporal Judgments

open access: yesFrontiers in Human Neuroscience, 2021
A Theory of Magnitude (ATOM) suggests that space, time, and quantities are processed through a generalized magnitude system. ATOM posits that task-irrelevant magnitudes interfere with the processing of task-relevant magnitudes as all the magnitudes are ...
Anuj Shukla, Raju S. Bapi
doaj   +1 more source

Playing with nonuniform grids [PDF]

open access: yes, 1992
Numerical experiments with discretization methods on nonuniform grids are presented for the convection-diffusion equation. These show that the accuracy of the discrete solution is not very well predicted by the local truncation error.
Rinzema, K.,   +5 more
core   +1 more source

Improving Numerical Accuracy in Time-Domain Simulation for Power Electronics Circuits

open access: yesIEEE Open Access Journal of Power and Energy, 2021
In time-domain simulations of power system transients, trapezoidal integration with fixed step-size is the most common method due to its accuracy and ease of implementation.
Willy Nzale   +4 more
doaj   +1 more source

On the accuracy of invariant numerical schemes

open access: yesCommunications on Pure and Applied Analysis, 2011
In this paper we present a method of construction of invariant numerical schemes for partial differential equations. The resulting schemes preserve the Lie-symmetry group of the continuous equation and they are at least as accurate as the original scheme.
Chhay, Marx, Hamdouni, Aziz
openaire   +2 more sources

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