Results 1 to 10 of about 12,068,052 (292)

Homotopy perturbation method coupled with the enhanced perturbation method [PDF]

open access: yesJournal of Low Frequency Noise, Vibration and Active Control, 2019
The enhanced perturbation method is used to improve a governing equation to a higher order, followed by the classic perturbation method. This paper adopts the basic idea of the method to construct a homotopy equation with a higher order. The results show
Xiao-Xia Li, Chun-Hui He
doaj   +4 more sources

Study on Electron-Induced Surface Plasmon Coupling with Quantum Well Using a Perturbation Method [PDF]

open access: yesNanomaterials, 2020
Ag nanoparticles (NPs) are filled in a photonic crystal (PhC) hole array on green light emitting diodes (LEDs). The localized surface plasmon (LSP)–quantum well (QW) coupling effect is studied by measuring the cathodoluminescence (CL) spectra impinging ...
Yifan Chen   +13 more
doaj   +2 more sources

Rational Homotopy Perturbation Method [PDF]

open access: yesJournal of Applied Mathematics, 2012
The solution methods of nonlinear differential equations are very important because most of the physical phenomena are modelled by using such kind of equations.
Héctor Vázquez-Leal
doaj   +4 more sources

A Review on Solution Techniques and Application of Peristaltic Transport in Generalized Newtonian Fluid [PDF]

open access: yesJournal of Heat and Mass Transfer Research, 2023
In this review, a quantitative research survey has been carried out on the peristaltic motion of Carreau fluid (CF), one of the most important generalized Newtonian fluids.
Karunakaran Varatharaj   +1 more
doaj   +1 more source

A radiating straight fin with constant thermal properties by modified perturbation method

open access: yesMechanical Engineering Journal, 2023
A modified perturbation method (Kato and Matsuda, 2021) is used to obtain the solution of the heat transfer problem of a radiating straight fin with constant thermal properties.
Sumio KATO, Shoichi MATSUDA
doaj   +1 more source

Dynamics of a Double-Impulsive Control Model of Integrated Pest Management Using Perturbation Methods and Floquet Theory

open access: yesAxioms, 2023
We formulate an integrated pest management model to control natural pests of the crop through the periodic application of biopesticide and chemical pesticides.
Fahad Al Basir   +2 more
doaj   +1 more source

Influence of the Thermal Conductivity and Ambient Temperature Uncertainty on the Heat Losses through the External Wall

open access: yesBuildings, 2021
Numerous parameters assumed in the calculations of the buildings’ energy demand are uncertain. Therefore, calculations should be accompanied by determination of propagation of such uncertainties in the mathematical model. In the article, the influence of
Marcin Koniorczyk, Witold Grymin
doaj   +1 more source

An Innovative Approach to Predict the Diffusion Rate of Reactant’s Effects on the Performance of the Polymer Electrolyte Membrane Fuel Cell

open access: yesMathematics, 2023
As the analytical solution can provide much more accurate and reliable results in a short time, in the present study, an innovative analytical approach based on the perturbation method is proposed.
Nima Ahmadi, Sajad Rezazadeh
doaj   +1 more source

Electrical characterization of zig-zag Aluminum thin films using experimental and theoretical methods [PDF]

open access: yesJournal of Optoelectronical Nanostructures, 2021
Zig-zag Al nanostructures were fabricated on the glass and steel using thermal evaporation technique. The structural, morphology and electrical properties of Al thin films were studied by using AFM, FESEM and four-point probe instrument.
Mahsa Fakharpour   +2 more
doaj   +1 more source

An Analytical Approach for the Two-Dimensional Plunging Breaking Wave Impact on a Vertical Wall with Air Entrapment

open access: yesFluids, 2020
This study investigates an idealized formulation of the two-dimensional impact of a breaking wave on a vertical impermeable wall. An overturning-like wave is assumed, which is close to the concept of a plunging breaker.
Theodosis D. Tsaousis   +1 more
doaj   +1 more source

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