Results 61 to 70 of about 685,779 (325)

Compact Finite Differences and Cubic Splines

open access: yes, 2018
Revised and corrected version. 25 pages, 4 figures; keywords: compact finite differences; cubic splines; barycentric form; compact cubic splines; contour integral methods; totally nonnegative ...
openaire   +2 more sources

Positive‐Tone Nanolithography of Antimony Trisulfide with Femtosecond Laser Wet‐Etching

open access: yesAdvanced Functional Materials, EarlyView.
A butyldithiocarbamic acid (BDCA) etchant is used to fabricate various micro‐ and nanoscale structures on amorphous antimony trisulfide (a‐Sb2S3) thin film via femtosecond laser etching. Numerical analysis and experimental results elucidate the patterning mechanism on gold (reflective) and quartz (transmissive) substrates.
Abhrodeep Dey   +12 more
wiley   +1 more source

High Order Compact Explicit Difference Schemes and Stability Analysis for Two-dimensional Wave Equations

open access: yesJournal of Harbin University of Science and Technology
In this paper, a high-order compact explicit finite difference scheme is proposed to numerically solve two-dimensional wave equations with initial boundary value problems.
SUN Yang, SONG Linlin, AI Xiaohui
doaj   +1 more source

Eighth-Order Compact Finite Difference Scheme for 1D Heat Conduction Equation [PDF]

open access: yesAdvances in Numerical Analysis, 2016
The purpose of this paper is to develop a high-order compact finite difference method for solving one-dimensional (1D) heat conduction equation with Dirichlet and Neumann boundary conditions, respectively. A parameter is used for the direct implementation of Dirichlet and Neumann boundary conditions. The introduced parameter adjusts the position of the
Asma Yosaf   +4 more
openaire   +1 more source

Miniature Nanomesh Mechano‐Acoustic Sensor with Wide Linear Dynamic Range, Broad Bandwidth, and Flat Frequency Response

open access: yesAdvanced Functional Materials, EarlyView.
A miniaturized mechano‐acoustic sensor is developed using an electrospun PVDF nanomesh as the diaphragm in a capacitive sensor structure. Unlike conventional nanomesh‐based sensors, it achieves high linear sensitivity, a broad and flat frequency response, and a compact form factor.
Jeng‐Hun Lee   +8 more
wiley   +1 more source

A nonstandard compact finite difference method for a truncated Bratu–Picard model

open access: yesAIMS Mathematics
In this paper, we used the nonstandard compact finite difference method to numerically solve one-dimensional truncated Bratu-Picard equations and discussed the convergence analysis of the proposed method.
Maryam Arabameri   +3 more
doaj   +1 more source

Compact difference scheme for two-dimensional fourth-order hyperbolic equation

open access: yesAdvances in Difference Equations, 2019
In this paper, we mainly study an initial and boundary value problem of a two-dimensional fourth-order hyperbolic equation. Firstly, the fourth-order equation is written as a system of two second-order equations by introducing two new variables. Next, in
Qing Li, Qing Yang
doaj   +1 more source

MOFs and COFs in Electronics: Bridging the Gap between Intrinsic Properties and Measured Performance

open access: yesAdvanced Functional Materials, EarlyView.
Metal‐organic frameworks (MOFs) and covalent organic frameworks (COFs) hold promise for advanced electronics. However, discrepancies in reported electrical conductivities highlight the importance of measurement methodologies. This review explores intrinsic charge transport mechanisms and extrinsic factors influencing performance, and critically ...
Jonas F. Pöhls, R. Thomas Weitz
wiley   +1 more source

A note on solving the fourth-order Kuramoto-Sivashinsky equation by the compact finite difference scheme

open access: yesAin Shams Engineering Journal, 2018
The present article is concerned with the implementation of the compact finite difference scheme, in the space and the optimal four-stage, order three strong stability-preserving time-stepping Runge-Kutta (SSP-RK43) scheme, in time for computation of one
Brajesh Kumar Singh   +2 more
doaj   +1 more source

Electrically Tunable On‐Chip Topological Photonics with Integrated Carbon Nanotubes

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates electrically tunable on‐chip topological THz devices by integrating 2D carbon nanotube (CNT) sheets with valley‐Hall photonic crystals, enabling broadband transmission modulation (71% modulation depth) and tunable narrowband filtering (0.54 GHz shift) through electrically induced thermal tuning. This advancement paves the way for
Jifan Yin   +7 more
wiley   +1 more source

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