Results 101 to 110 of about 115,549 (311)
An Eigenvector Problem Arising in the Study of Convergence of Walsh–Fourier Series
MathematicsThis work establishes bounds for certain matrices that arise in the study of the convergence of expansions in Walsh functions, or Walsh–Fourier series. The matrices in question arise by “truncating” certain orthogonal matrices corresponding to expansions
Jeffrey A. Hogan, Joseph D. Lakey
doaj +1 more source
Advanced Materials, EarlyView.This project developed a smart bandage‐like patch (a microneedle array) for repairing diabetic bone damage. It intelligently senses signals from infection and inflammation, then releases its medicines in a specific, timed sequence: first an antibacterial agent, then an anti‐inflammatory agent, and finally growth factors.
Yu Wang +10 more
wiley +1 more source
Image feature analysis using the Multiresolution Fourier Transform [PDF]
The problem of identifying boundary contours or line structures is widely recognised as an important component in many applications of image analysis and computer vision.
Davies, Andrew Richard
core
Accelerating the calibration of stochastic volatility models [PDF]
This paper compares the performance of three methods for pricing vanilla options in models with known characteristic function: (1) Direct integration, (2) Fast Fourier Transform (FFT), (3) Fractional FFT. The most important application of this comparison
Kilin, Fiodar
core +1 more source
Comparison of fast Fourier transform and convolution in wavelength scanning interferometry [PDF]
, 2011 The assessment of surface finish has become increasingly important in the field of precision engineering. Optical interferometry has been widely used for surface measurement due to the advantages of non-contact and high accuracy interrogation.
Gao, F. +7 more
core +1 more source
Nonlocal Metaspire: A Scalable Elastic Material Platform With Decoupled Mechanical Modes
Advanced Materials, EarlyView.Nonlocal Metaspire introduces sequential rotation to realize wider scalability in implementing complex nonlocal couplings in elastic metamaterials while suppressing unintended mode coupling. Numerical results clarify the underlying wave motions, demonstrate mode‐decoupled roton and maxon formation, and support a straightforward extension to higher ...
Seung Han Kim +3 more
wiley +1 more source
Microlocal Analysis of Some Isospectral Deformations [PDF]
, 1994 We study the microlocal structure of the examples of isospectral deformations of Riemannian manifolds given by D. DeTurck and C. Gordon in [DeT-G1]. The Schwartz kernel of the intertwining operators considered by them may be written as an oscillatory ...
Marhuenda, Francisco +1 more
core
A Survey of Interlayer Interaction Models for Graphene and Other 2D Materials
Advanced 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
Fourier analysis and inverse problem [PDF]
, 2008 Tezde Fourier dönüşümü kullanarak bazı sınıf istasyonel olmayan kısmi türevli diferansiyel denklemlerin gerçek çözümleri incelenmiştir.Ayrıca da serpilmenin ters problemi de kullanılarak birinci basamaktan kısmi türevli diferansiyel denklemlerin gerçek ...
Çakır, Necati
core
Thermal Radiation Emission From 3D Graphene Networks
Advanced Materials Interfaces, EarlyView.Three‐dimensional graphene networks are demonstrated as exceptional broadband thermal emitters, exhibiting high‐intensity, spectrally homogeneous emission and strong mechanical flexibility compared to conventional emitters like silicon carbide.
Maria Chiara Paolozzi +7 more
wiley +1 more source