Results 31 to 40 of about 1,679 (224)

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

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

One step multiderivative methods for first order ordinary differential equations

open access: yes, 1981
A family of one-step multiderivative methods based on Padé approximants to the exponential function is developed. The methods are extrapolated and analysed for use in PECE mode.
E. H. Twizell   +3 more
core   +1 more source

Stability analysis of reducible quadrature methods for Volterra integro-differential equations [PDF]

open access: yes, 1987
summary:Stability analysis for numerical solutions of Voltera integro-differential equations based on linear multistep methods combined with reducible quadrature rules is presented.
Jackiewicz, Zdzisław, Bakke, Vernon L.
core   +1 more source

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

Three Point Identities and Inequalities for n-time Differential Functions

open access: yes, 1999
Identities and inequalities are obtained involving n-time differentiable functions in terms of evaluations at an interior and at the end points. It is shown how previous work is recaptured as particular instances of the current development.
Cerone, Pietro   +2 more
core   +1 more source

Time-local discretization of fractional and related diffusive operators using Gaussian quadrature with applications [PDF]

open access: yes, 2020
This paper investigates the time-local discretization, using Gaussian quadrature, of a class of diffusive operators that includes fractional operators, for application in fractional differential equations and related eigenvalue problems. A discretization
Piot, Estelle   +2 more
core   +1 more source

A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials

open access: yesAdvanced Materials Interfaces, EarlyView.
Van der Waals interactions arising from electronic polarization at atomically close interfaces generate corrugated interlayer energy landscapes that govern normal and tangential tractions. This review presents an overview of quantum, atomistic, analytical, and continuum modeling approaches, highlighting their roles across length scales in capturing ...
Gourav Yadav   +2 more
wiley   +1 more source

Integrated Ultrasonic Platform for Bioelectronic Control through Biological Barriers Based on Metasurface

open access: yesAdvanced Science, EarlyView.
A metasurface‐enabled ultrasonic platform achieves precise multi‐focal control through biological barriers, real‐time physiology‐driven modulation, and simultaneous wireless power and data transmission. By unifying wavefront engineering, closed‐loop feedback, and acoustic communication, this work establishes key enabling technologies toward scalable ...
Chuanxin Zhang   +3 more
wiley   +1 more source

Optical Windows for Transcranial Brain Imaging in Living Mice: Skull Thinning, Clearing, and Beyond

open access: yesAdvanced Science, EarlyView.
Longitudinal, noninvasive in vivo imaging is crucial for studying brain physiology. Advances in transcranial optical windows and multiphoton microscopy have improved imaging depth, but their performance often deteriorates over time. This work investigated various transcranial window approaches and found that skull regrowth limits image quality.
Yiming Fu   +5 more
wiley   +1 more source

Home - About - Disclaimer - Privacy