Results 31 to 40 of about 2,690,813 (243)

Elasticity Solutions for In-Plane Free Vibration of FG-GPLRC Circular Arches with Various End Conditions

open access: yesApplied Sciences, 2020
In-plane free vibration of functionally graded graphene platelets reinforced nanocomposites (FG-GPLRCs) circular arches is investigated by using the two-dimensional theory of elasticity.
Dongying Liu, Jing Sun, Linhua Lan
doaj   +1 more source

Computational guidance using sparse Gauss-Hermite quadrature differential dynamic programming [PDF]

open access: yes, 2019
This paper proposes a new computational guidance algorithm using differential dynamic programming and sparse Gauss-Hermite quadrature rule. By the application of sparse Gauss-Hermite quadrature rule, numerical differentiation in the calculation of ...
He, Shaoming   +5 more
core   +1 more source

Explicit general linear methods with a large stability region for Volterra integro-differential equations

open access: yesMathematical Modelling and Analysis, 2019
In this paper, we describe the construction of a class of methods with a large area of the stability region for solving Volterra integro-differential equations.
Hassan Mahdi   +2 more
doaj   +1 more source

An Improved Differential Quadrature Time Element Method

open access: yesApplied Sciences, 2017
A Differential Quadrature Time Element Method (DQTEM) was proposed by the author and co-worker, its drawback is the need of larger storage capacity since the dimension of the coefficients matrix for solution is the product of both spatial degrees of ...
Mingbo Qin, Yufeng Xing, Jing Guo
doaj   +1 more source

Distributed Approximating Functional Approach to Burgers’ Equation using Element Differential Quadrature Method

open access: yesJournal of Applied Sciences and Environmental Management, 2013
This paper presents a computationally efficient and an accurate methodology in differential quadrature element method (EDQM) analysis of the nonlinear one-dimensional Burgers’ equation.
M Vaghefi   +3 more
doaj   +2 more sources

One-dimensional adaptive grid generation

open access: yesInternational Journal of Mathematics and Mathematical Sciences, 1997
In this work, we give an adaptive grid generation method which allows a single point to be added in the regions of large variation. This method uses a quadrature rule as a weight function.
Ahmed M. M. Khodier, Adel Y. Hassan
doaj   +1 more source

Internal Resonance Mismatch‐Controlled Dissipative Bistability Collapse in Coupled Micromechanical Oscillators

open access: yesAdvanced Science, EarlyView.
This paper reveals internal resonance mismatch‐controlled dissipative bistability collapse in a coupled micromechanical resonator. Tuning δIR changes both internal‐mode amplitude and phase‐dependent feedback. For negative mismatch, Duffing bistability survives.
Jianlin Chen   +4 more
wiley   +1 more source

Asymptotically accurate error estimates of exponential convergence for the trapezoidal rule

open access: yesDiscrete and Continuous Models and Applied Computational Science, 2021
In many applied problems, efficient calculation of quadratures with high accuracy is required. The examples are: calculation of special functions of mathematical physics, calculation of Fourier coefficients of a given function, Fourier and Laplace ...
Aleksandr A. Belov   +1 more
doaj   +1 more source

Multi‐Dimensional Physical‐Layer Security via Digitally Mediated Space–Time Modulation

open access: yesAdvanced Science, EarlyView.
Digitally mediated space–time modulation moves radiation control beyond hardware‐bound switching. Multiple information‐bearing and masking waveforms are jointly synthesized at baseband and coherently coupled to simple periodic time modulation, enabling programmable, independently directed multi‐beam radiation without increasing switching‐state ...
Kejin Chen   +8 more
wiley   +1 more source

PLXDC2 siRNA‐Mediated Intervention Attenuates Microglial Senescence Through cGAS‐STING Signaling

open access: yesAdvanced Science, EarlyView.
PLXDC2 was identified as a microglial target in Parkinson's disease through human and mouse single‐cell analyses. Ferritin‐armed biomimetic nanovesicles delivered PLXDC2 siRNA, deferoxamine, and CeO2 nanoparticles across the blood–brain barrier, reducing cGAS‐STING activation, iron burden, oxidative stress, and senescence in microglia, thereby ...
Heyue Lu   +13 more
wiley   +1 more source

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