Results 41 to 50 of about 22,685,320 (370)
Entropy, 2019 What is the value of just a few bits to a guesser? We study this problem in a setup where Alice wishes to guess an independent and identically distributed (i.i.d.) random vector and can procure a fixed number of k information bits from Bob, who has ...
Nir Weinberger, Ofer Shayevitz
doaj +1 more source
Beilstein Journal of Nanotechnology, 2020 Atomic force microscopy (AFM) is an important tool for measuring a variety of nanoscale surface properties, such as topography, viscoelasticity, electrical potential and conductivity.
Berkin Uluutku, Santiago D. Solares
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Fourier analysis methods for the compressible Navier-Stokes equations [PDF]
, 2015 In the last three decades, Fourier analysis methods have known a growing importance in the study of linear and nonlinear PDE's. In particular, techniques based on Littlewood-Paley decomposition and paradifferential calculus have proved to be very ...
R. Danchin
semanticscholar +1 more source
Algorithmic Randomness and Fourier Analysis [PDF]
Theory of Computing Systems, 2018 Suppose $1 < p < \infty$. Carleson's Theorem states that the Fourier series of any function in $L^p[- , ]$ converges almost everywhere. We show that the Schnorr random points are precisely those that satisfy this theorem for every $f \in L^p[- , ]$ given natural computability conditions on $f$ and $p$.
Johanna N. Y. Franklin +2 more
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Multi‐institutional study on image quality for a novel CBCT solution on O‐ring linac
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Introduction This work presents a multi‐institutional study on image quality provided by a novel cone beam computed tomography (CBCT). The main goal is to investigate the consistency of imaging performance across multiple institutions.
Luis Agulles‐Pedrós +11 more
wiley +1 more source
Circular Convolution and Product Theorem for Affine Discrete Fractional Fourier Transform [PDF]
arXiv, 2020 The Fractional Fourier Transform is a ubiquitous signal processing tool in basic and applied sciences. The Fractional Fourier Transform generalizes every property and application of the Fourier Transform. Despite the practical importance of the discrete fractional Fourier transform, its applications in digital communications have been elusive.
arxiv
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose To compare image quality and clinical utility of a T2‐weighted (T2W) 3‐dimensional (3D) fast spin echo (FSE) sequence using deep learning reconstruction (DLR) versus conventional reconstruction for rectal magnetic resonance imaging (MRI).
Dan Nguyen +11 more
wiley +1 more source
A method for measuring spatial resolution based on clinical chest CT sequence images
Journal of Applied Clinical Medical Physics, EarlyView.Abstract Purpose This study aimed to develop and validate a method for characterizing the spatial resolution of clinical chest computed tomography (CT) sequence images. Methods An algorithm for characterizing spatial resolution based on clinical chest CT sequence images was developed in Matlab (2021b).
Ying Liu +3 more
wiley +1 more source
Fast DBF for conformal arrays based on 2D Fourier decomposition
The Journal of Engineering, 2019 Digital array radars with conformal arrays are attractive for platforms with limited installation space such as aircraft and unmanned aerial vehicles.
Yuan Yao, Guangxin Wu
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FOURIER ANALYSIS OF BLAZAR VARIABILITY [PDF]
The Astrophysical Journal, 2014 Blazars display strong variability on multiple timescales and in multiple radiation bands. Their variability is often characterized by power spectral densities (PSDs) and time lags plotted as functions of the Fourier frequency. We develop a new theoretical model based on the analysis of the electron transport (continuity) equation, carried out in the ...
Justin D. Finke, Peter A. Becker
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