Results 71 to 80 of about 2,738 (206)

A shape optimization pipeline for marine propellers by means of reduced order modeling techniques

International Journal for Numerical Methods in Engineering, Volume 125, Issue 7, 15 April 2024.
Abstract In this article, we propose a shape optimization pipeline for propeller blades, applied to naval applications. The geometrical features of a blade are exploited to parametrize it, allowing to obtain deformed blades by perturbating their parameters. The optimization is performed using a genetic algorithm that exploits the computational speed‐up
Anna Ivagnes, Nicola Demo, Gianluigi Rozza   +2 more
wiley   +1 more source

The Derivation of a Multiquadric Variant Solver for the Three-Dimensional Heston-Hull-White PDE

Axioms
The Heston-Hull-White (HHW) model is a generalization of the classical Heston approach that incorporates stochastic interest rates, making it a more accurate representation of financial markets.
Shuai Wang, Ziyang Wang, Yunfei Qi, Tao Liu   +3 more
doaj   +1 more source

Quantile regression with generalized multiquadric loss function

Quantile regression (QR) is now widely used to analyze the effect of covariates on the conditional distribution of a response variable. It provides a more comprehensive picture of the relationship between a response and covariates compared with classical least squares regression.
Gao, Wenwu, Zheng, Dongyi, Zhu, Hanbing
openaire   +2 more sources

Multi‐Spacecraft Magnetic Field Reconstructions: A Cross‐Scale Comparison of Methods

Earth and Space Science, Volume 11, Issue 3, March 2024.
Abstract Space plasma studies frequently use in situ magnetic field measurements taken from many spacecraft simultaneously. A useful data product of these measurements is the reconstructed magnetic field in a volume near the spacecraft observatory. We compare a standard Linear method of computing the magnetic field at arbitrary spatial points to two ...
T. Broeren, K. G. Klein, J. M. TenBarge
wiley   +1 more source

Analysis of laminated doubly-curved shells by alayerwise theory and radial basis functions collocation, accounting for through-the-thickness deformations

, 2011
In this paper, the static and free vibration analysis of laminated shells is performed by radial basis functions collocation, according to a sinusoidal shear deformation theory (SSDT).
A.J.M. Ferreira, Arnold, Bathe, C.M.C. Roque, Carrera, Carrera, Carrera, Carrera, Carrera, Chapelle, Chen, Cheng, Chinosi, Cinefra, Dai, D’Ottavio, E. Carrera, Ferreira, Ferreira, Ferreira, Ferreira, Ferreira, Flügge, Hardy, Hon, Hon, Huang, Kansa, Koiter, Liew, Liu, Liu, Liu, Liu, M. Cinefra, Naghdi, O. Polit, Pitkäranta, Polit, Q Huang, Reddy, Reddy, Scordelis, Touratier, Touratier, Touratier, Vidal, Wang, Wang, Xiang, Xiang, Zienkiewicz   +51 more
core   +1 more source

Wetlands Water Level Measurements From the New Generation of Satellite Laser Altimeters: Systematic Spatial‐Temporal Evaluation of ICESat‐2 and GEDI Missions Over the South Florida Everglades

Water Resources Research, Volume 60, Issue 3, March 2024.
Abstract The ICESat‐2 and GEDI missions were launched in 2018, becoming the new generation of space‐borne laser altimeters. These missions provide unprecedented global geodetic elevations, opening great opportunities for water level monitoring. The potential of these altimeters has been demonstrated in open‐water environments such as lakes, rivers, and
Sebastián Palomino‐Ángel, Shimon Wdowinski, Shanshan Li   +2 more
wiley   +1 more source

Meshless Analysis of Nonlocal Boundary Value Problems in Anisotropic and Inhomogeneous Media

Mathematics, 2020
In this work, meshless methods based on a radial basis function (RBF) are applied for the solution of two-dimensional steady-state heat conduction problems with nonlocal multi-point boundary conditions (NMBC).
Zaheer-ud-Din, Muhammad Ahsan, Masood Ahmad, Wajid Khan, Emad E. Mahmoud, Abdel-Haleem Abdel-Aty   +5 more
doaj   +1 more source

Regular Families of Kernels for Nonlinear Approximation

, 2019
This article studies sufficient conditions on families of approximating kernels which provide $N$--term approximation errors from an associated nonlinear approximation space which match the best known orders of $N$--term wavelet expansion.
Hamm, Keaton, Ledford, Jeff
core   +1 more source

Inverse multiquadric kernel‐based neuro heuristic approach to analyze the unsteady MHD nanofluid flow via permeable elongating surface

ZAMM - Journal of Applied Mathematics and Mechanics / Zeitschrift für Angewandte Mathematik und Mechanik, Volume 104, Issue 2, February 2024.
In this study, a novel neuro heuristic approach is designed to investigate the flow properties of magnetohydrodynamic (MHD) nanofluid along an exponentially extending sheet with a permeable medium with the impact of radiation as well as fluctuating heat source/sink.
Zeeshan Ikram Butt, Iftikhar Ahmad, Syed Ibrar Hussain, Muhammad Asif Zahoor Raja, Muhammad Shoaib, Hira Ilyas   +5 more
wiley   +1 more source

On the Accuracy and Stability of the Meshless RBF Collocation Method for Neutron Diffusion Calculations

Journal of Innovative Science and Engineering, 2018
Accuracy and stability are the main properties that make an algorithm preferable to its counterparts in modelling of physical phenomena. The radial basis function collocation method is a novel meshless technique, which exhibits an exponential convergence
Tayfun TANBAY
doaj