Results 21 to 30 of about 290,972 (299)

Effect of Heterogeneity in Initial Geographic Distribution on Opinions’ Competitiveness

open access: yesEntropy, 2015
Spin dynamics on networks allows us to understand how a global consensus emerges out of individual opinions. Here, we are interested in the effect of heterogeneity in the initial geographic distribution of a competing opinion on the competitiveness of ...
Alexander S. Balankin   +5 more
doaj   +1 more source

Vaccines Alone Cannot Slow the Evolution of SARS-CoV-2

open access: yesVaccines, 2023
The rapid emergence of immune-evading viral variants of SARS-CoV-2 calls into question the practicality of a vaccine-only public-health strategy for managing the ongoing COVID-19 pandemic. It has been suggested that widespread vaccination is necessary to
Debra Van Egeren   +7 more
doaj   +1 more source

Closed Contour Fractal Dimension Estimation by the Fourier Transform [PDF]

open access: yes, 2011
This work proposes a novel technique for the numerical calculus of the fractal dimension of fractal objects which can be represented as a closed contour.
Beck   +31 more
core   +1 more source

Acknowledgement to Reviewers of Fractal Fract in 2018

open access: yesFractal and Fractional, 2019
Rigorous peer-review is the corner-stone of high-quality academic publishing [...]
Fractal Fract Editorial Office
doaj   +1 more source

Study on Fractal Characteristics of Migration-Population Flow—Evidence from Egypt

open access: yesISPRS International Journal of Geo-Information, 2021
Population migration is a major event of optimizing the allocation of production factors and a key way to construct regional relations and promote spatial reconstruction.
Sidong Zhao, Xingping Wang, Zhishan Ma
doaj   +1 more source

Fractal Continuation

open access: yesConstructive Approximation, 2013
A fractal function is a function whose graph is the attractor of an iterated function system. This paper generalizes analytic continuation of an analytic function to continuation of a fractal function.
Barnsley, Michael, vince, Andrew
openaire   +4 more sources

Application of Fractal Dimension for Quantifying Noise Texture in Computed Tomography Images [PDF]

open access: yes, 2018
Purpose Evaluation of noise texture information in CT images is important for assessing image quality. Noise texture is often quantified by the noise power spectrum (NPS), which requires numerous image realizations to estimate.
Crotty, Dominic J.   +4 more
core   +2 more sources

Fractal and multifractal spatiotemporal patterns of land surface temperatures in a coastal city

open access: yesEuropean Journal of Remote Sensing, 2022
In order to discover the fractal and multifractal nature of land surface temperature (LST) spatiotemporal patterns, this study computed the LST in thecoastal city, Xiamen, southeastern China using Landsat TM/OLI/TIRS images from 1994 to 2015, and ...
Qin Nie   +5 more
doaj   +1 more source

Skeleton and fractal scaling in complex networks [PDF]

open access: yes, 2006
We find that the fractal scaling in a class of scale-free networks originates from the underlying tree structure called skeleton, a special type of spanning tree based on the edge betweenness centrality.
B. Kahng   +7 more
core   +1 more source

Measuring Fractality [PDF]

open access: yesFrontiers in Physiology, 2012
WHEN INVESTIGATING FRACTAL PHENOMENA, THE FOLLOWING QUESTIONS ARE FUNDAMENTAL FOR THE APPLIED RESEARCHER: (1) What are essential statistical properties of 1/f noise? (2) Which estimators are available for measuring fractality? (3) Which measurement instruments are appropriate and how are they applied?
openaire   +3 more sources

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