Results 21 to 30 of about 2,067 (261)

Free vibration analysis of annular sector plates via conical shell equations

open access: yesCurved and Layered Structures, 2017
In this paper, free vibration analysis of annular sector plates has been presented via conical shell equations. By using the first-order shear deformation theory (FSDT) equation of motion of conical shell is obtained.
Demir Çiğdem   +3 more
doaj   +1 more source

On the modelling of the vibration behaviors via discrete singular convolution method for a high-order sector annular system [PDF]

open access: yes, 2021
This research presents a numerical investigation on the dynamic information of the axisymmetric sandwich annular sector plate via a higher-order continuum elasticity theory.
He, Tao   +3 more
core   +1 more source

Solving singular convolution equations using the inverse fast Fourier transform [PDF]

open access: yes, 2012
summary:The inverse Fast Fourier Transform is a common procedure to solve a convolution equation provided the transfer function has no zeros on the unit circle.
Zizler, Václav   +4 more
core   +1 more source

Mixed estimates for singular integrals on weighted Hardy spaces [PDF]

open access: yes, 2022
In this paper we give quantitative bounds for the norms of different kinds of singular integral operators on weighted Hardy spaces Hpw, where 0 ∞ class.
Dalmasso, Estefanía   +1 more
core   +2 more sources

On the solution of the convolution equation with a sum-difference kernel

open access: yesVestnik Samarskogo Gosudarstvennogo Tehničeskogo Universiteta. Seriâ: Fiziko-Matematičeskie Nauki, 2015
The paper deals with the integral equations of the second kind with a sumdifference kernel. These equations describe a series of physical processes in a medium with a reflective boundary.
Ani G Barseghyan
doaj   +1 more source

Chiral Phase Change Nanomaterials

open access: yesAdvanced Functional Materials, EarlyView.
This work demonstrates reversible, non‐volatile phase transitions in chiral Ge2${\rm Ge}_2$Sb2${\rm Sb}_2$Te5${\rm Te}_5$ (GST) nanohelices for high‐speed optical modulation of chirality and dynamic control of the state of polarization (SOP). The chiral nanostructures are fabricated using a highly directional, wafer‐scale physical vapor deposition ...
Joshua A. Burrow   +11 more
wiley   +1 more source

Singular Integral Equations of Convolution Type with Cosecant Kernels and Periodic Coefficients [PDF]

open access: yes, 2017
We study singular integral equations of convolution type with cosecant kernels and periodic coefficients in class L2[-π,π]. Such equations are transformed into a discrete jump problem or a discrete system of linear algebraic equations by using discrete ...
Pingrun Li
core   +1 more source

Artificial Intelligence‐Assisted Workflow for Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling

open access: yesAdvanced Materials, EarlyView.
AI‐Assisted Workflow for (Scanning) Transmission Electron Microscopy: From Data Analysis Automation to Materials Knowledge Unveiling. Abstract (Scanning) transmission electron microscopy ((S)TEM) has significantly advanced materials science but faces challenges in correlating precise atomic structure information with the functional properties of ...
Marc Botifoll   +19 more
wiley   +1 more source

Parameter optimization in the regularized Shannon's kernels of higher‐order discrete singular convolutions

open access: yesCommunications in Numerical Methods in Engineering, 2003
AbstractThe δ‐type discrete singular convolution (DSC) algorithm has recently been proposed and applied to solve kinds of partial differential equations (PDEs). With appropriate parameters, particularly the key parameter r in its regularized Shannon's kernel, the DSC algorithm can be more accurate than the pseudospectral method.
Xiong, W., Zhao, Y., Gu, Y.
openaire   +3 more sources

A Stability Problem Involving Approximate Identities, Discrete Convolution Operators, Singular Integral Operators, and Finite Sections [PDF]

open access: yes, 2023
Let $n \in \mathbb{N}$ tend towards infinity and $r \in [0,1)$ tend towards 1 with the condition that $n(1-r) \rightarrow \lambda$ for some fixed $\lambda \in (0,\infty).$ A sequence $(F_{n,r})$ of bounded linear operators on a Hilbert space is called $\
Pugh, Ryan
core  

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