Results 91 to 100 of about 53,539 (221)

Advanced machine learning technique for solving elliptic partial differential equations using Legendre spectral neural networks

Electronic Research Archive
In this work, a novel approach based on a single-layer machine learning Legendre spectral neural network (LSNN) method is used to solve an elliptic partial differential equation.
Ishtiaq Ali
doaj   +1 more source

Longitudinal Genome‐Wide Association Study for Female Fertility Traits in German Holstein Cattle

Animal Genetics, Volume 57, Issue 1, February 2026.
ABSTRACT The aim of this genome‐wide association study (GWAS) was to detect significant SNP effects influencing the dynamic process of female fertility in dairy cattle over lactations, to identify possible candidate genes and to study their role in pathway analyses.
S. Sakhaeifar, T. Yin, S. König
wiley   +1 more source

Convergence properties of dynamic mode decomposition for analytic interval maps

Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 179-206, February 2026.
Abstract Extended dynamic mode decomposition (EDMD) is a data‐driven algorithm for approximating spectral data of the Koopman operator associated to a dynamical system, combining a Galerkin method with N$N$ functions and a quadrature method with M$M$ quadrature nodes.
Elliz Akindji, Julia Slipantschuk, Oscar F. Bandtlow, Wolfram Just   +3 more
wiley   +1 more source

Polynomials to model the growth of young bulls in performance tests

Animal, 2014
The use of polynomial functions to describe the average growth trajectory and covariance functions of Nellore and MA (21/32 Charolais+11/32 Nellore) young bulls in performance tests was studied.
D.C.B. Scalez, B.O. Fragomeni, T.L. Passafaro, I.G. Pereira, F.L.B. Toral   +4 more
doaj   +1 more source

Deconvolution of Tc-99m-Mercaptoacetyltriglycine Renograms with the Concomitant Use of a Sparse Legendre Polynomial Representation and the Moore-Penrose Pseudo-inverse. [PDF]

Mol Imaging Radionucl Ther, 2022
Destine M, Hanin FX, Mathieu I, Willemart B, Seret A.   +4 more
europepmc   +1 more source

Dimer models and conformal structures

Communications on Pure and Applied Mathematics, Volume 79, Issue 2, Page 340-446, February 2026.
Abstract Dimer models have been the focus of intense research efforts over the last years. Our paper grew out of an effort to develop new methods to study minimizers or the asymptotic height functions of general dimer models and the geometry of their frozen boundaries.
Kari Astala, Erik Duse, István Prause, Xiao Zhong   +3 more
wiley   +1 more source

Collocation Method via Jacobi Polynomials for Solving Nonlinear Ordinary Differential Equations

International Journal of Mathematics and Mathematical Sciences, 2011
We extend a collocation method for solving a nonlinear ordinary differential equation (ODE) via Jacobi polynomials. To date, researchers usually use Chebyshev or Legendre collocation method for solving problems in
Ahmad Imani, Azim Aminataei, Ali Imani
doaj   +1 more source

Fractional Novel Analytical Method (FNAM): An Improved Innovative Numerical Scheme to Solve Fractional Differential‐Difference Equations

Engineering Reports, Volume 8, Issue 2, February 2026.
This paper introduces the Fractional Novel Analytical Method (FNAM), a Taylor‐series‐based technique for approximating nonlinear fractional differential‐difference equations. Built on the Caputo derivative, FNAM achieves rapid convergence without relying on Adomian polynomials, perturbation schemes, or transform methods.
Uroosa Arshad, Mariam Sultana, Homan Emadifar, Atul Kumar   +3 more
wiley   +1 more source

Effect of Body Weight Changes During Lactation on Estimated Enteric Methane Emissions in New Zealand Dairy Cows

New Zealand Journal of Agricultural Research, Volume 69, Issue 1, February 2026.
The New Zealand greenhouse gas inventory methodology for estimating enteric methane emissions (CH4) in dairy cows assumes, for simplicity of the prediction, that lactating cows maintain a constant body weight (BW) throughout each lactation. This study evaluated the effect of BW changes during lactation on estimated dry matter intake (DMI) and its ...
Juan Felipe Rocha, Ajmal Khan, Nicolas Lopez‐Villalobos, Lorna McNaughton, Rebecca Hickson, Chris Tidey, Arjan Jonker   +6 more
wiley   +1 more source

Sampling of non‐Gaussian Ensemble Average Propagators for the simulation of diffusion magnetic resonance images

Magnetic Resonance in Medicine, Volume 95, Issue 2, Page 1255-1265, February 2026.
Abstract Purpose (a) To design a methodology for drawing random samples of any Ensemble Average Propagator (EAP) (b) to modify the KomaMRI simulator to accommodate them as realistic spin movements to simulate diffusion MRI (dMRI) and (c) to compare these simulations with those based on the Diffusion Tensor (DT) model.
Justino R. Rodríguez‐Galván, Pablo Villacorta‐Aylagas, Susana Merino‐Caviedes, Federico Simmross‐Wattenberg, Carlos Castillo‐Passi, Pablo Irarrazaval, Antonio Tristán‐Vega, Carlos Alberola‐López   +7 more
wiley   +1 more source