Results 1 to 10 of about 2,390 (186)

Smoking dynamics with media awareness to control the prevalence of bad effect through fractional operator study [PDF]

open access: yesMethodsX
Smoking remains a persistent global health concern with complex behavioral dynamics influenced by memory and past experiences. This study formulates and analyses a fractional-order mathematical model of smoking behavior using the Caputo derivative to ...
Muhammad Farman   +5 more
doaj   +2 more sources

Anisotropy-Based Adaptive Polynomial Chaos Method for Hybrid Uncertainty Quantification and Reliability-Based Design Optimization of Structural-Acoustic System

open access: yesMathematics, 2023
The evaluation of objective functions and component reliability in the optimisation of structural-acoustic systems with random and interval variables is computationally expensive, especially when strong nonlinearity exhibits between the response and ...
Shengwen Yin   +3 more
doaj   +1 more source

A Novel Sparse Polynomial Expansion Method for Interval and Random Response Analysis of Uncertain Vibro-Acoustic System

open access: yesShock and Vibration, 2021
For the vibro-acoustic system with interval and random uncertainties, polynomial chaos expansions have received broad and persistent attention. Nevertheless, the cost of the computation process increases sharply with the increasing number of uncertain ...
Shengwen Yin, Xiaohan Zhu, Xiang Liu
doaj   +1 more source

Polynomial chaos Kalman filter for target tracking applications

open access: yesIET Radar, Sonar & Navigation, 2023
In this paper, an approximate Gaussian state estimator is developed based on generalised polynomial chaos expansion for target tracking applications. Motivated by the fact that calculating conditional moments in an approximate Gaussian filter involves ...
Kundan Kumar   +3 more
doaj   +1 more source

Probabilistic load margin assessment considering forecast error of wind power generation

open access: yesEnergy Reports, 2023
The increasing integration of wind power in power systems necessitates the probabilistic assessment of various uncertain factors. In operational planning, modeling short-term scale uncertainties, i.e., wind power forecast errors, plays an important role.
Chenxu Wang   +3 more
doaj   +1 more source

Angular Correlation Using Rogers-Szegő-Chaos

open access: yesMathematics, 2020
Polynomial chaos expresses a probability density function (pdf) as a linear combination of basis polynomials. If the density and basis polynomials are over the same field, any set of basis polynomials can describe the pdf; however, the most logical ...
Christine Schmid, Kyle J. DeMars
doaj   +1 more source

The method of moments for electromagnetic scattering analysis accelerated by the polynomial chaos expansion in infinite domains

open access: yesFrontiers in Physics, 2023
An efficient method of moments (MoM) based on polynomial chaos expansion (PCE) is applied to quickly calculate the electromagnetic scattering problems. The triangle basic functions are used to discretize the surface integral equations.
Xiaohui Yuan   +5 more
doaj   +1 more source

Verification of polynomial chaos surrogates in the framework of structural vibrations with uncertainties

open access: yesMechanics & Industry, 2023
Surface response models, such as polynomial chaos Expansion, are commonly used to deal with the case of uncertain input parameters. Such models are only surrogates, so it is necessary to develop tools to assess the level of error between the reference ...
Serra Quentin, Florentin Eric
doaj   +1 more source

Penerapan Algoritma Optimasi Chaos pada Jaringan Ridge Polynomial untuk Prediksi Jumlah Pengangguran

open access: yesIJCCS (Indonesian Journal of Computing and Cybernetics Systems), 2013
Abstrak Ridge polynomial neural network (RPNN) awalnya diusulkan oleh Shin dan Ghosh, dibangun dari jumlah peningkatan order pi-sigma neuron (PSN). RPNN mempertahankan pembelajaran cepat, pemetaan yang kuat dari layer tunggal higher order neural network
Rina Pramitasari, Retantyo Wardoyo
doaj   +1 more source

Performance of non-intrusive uncertainty quantification in the aeroservoelastic simulation of wind turbines [PDF]

open access: yesWind Energy Science, 2019
The present paper characterizes the performance of non-intrusive uncertainty quantification methods for aeroservoelastic wind turbine analysis. Two different methods are considered, namely non-intrusive polynomial chaos expansion and Kriging.
P. Bortolotti   +4 more
doaj   +1 more source

Home - About - Disclaimer - Privacy