Results 21 to 30 of about 489,396 (385)
Betweenness Centrality of Fractal and Non-Fractal Scale-Free Model Networks and Tests on Real Networks [PDF]
, 2007 We study the betweenness centrality of fractal and non-fractal scale-free network models as well as real networks. We show that the correlation between degree and betweenness centrality $C$ of nodes is much weaker in fractal network models compared to ...
Havlin, Shlomo +5 more
core +3 more sources
Minerals, 2020 The purpose of this article was to quantitatively investigate the pore structure and fractal characteristics of different lithofacies in the upper Permian Dalong Formation marine shale.
Longfei Xu +8 more
semanticscholar +1 more source
Journal of Fractal Geometry, Mathematics of Fractals and Related Topics, 2021 Davis and Knuth in 1970 introduced the notion of revolving sequences, as representations of a Gaussian integer. Later, Mizutani and Ito pointed out a close relationship between a set of points determined by all revolving sequences and a self-similar set, which is called the Dragon.
Kawamura, Kiko, Allen, Andrew
openaire +2 more sources
Individually optimal choices can be collectively disastrous in COVID-19 disease control
BMC Public Health, 2021 Background The word ‘pandemic’ conjures dystopian images of bodies stacked in the streets and societies on the brink of collapse. Despite this frightening picture, denialism and noncompliance with public health measures are common in the historical ...
Madison Stoddard +8 more
doaj +1 more source
Closed Contour Fractal Dimension Estimation by the Fourier Transform [PDF]
, 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
Fractal and Fractional, 2021 Magnesium oxysulfate (MOS) cement is a typical eco-friendly cementitious material, which presents excellent performances. In this work, a novel multiscale modeling strategy is proposed to simulate the hydration and pore structure of MOS cement system ...
Jiasheng Huang +10 more
semanticscholar +1 more source
Vaccines Alone Cannot Slow the Evolution of SARS-CoV-2
Vaccines, 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
Sustainability, 2021 Fractal objects are prevalent in natural scenery. Their repetition of patterns at increasingly fine magnifications creates a rich complexity. Fractals displaying mid-range complexity are the most common and include trees, clouds, and mountains.
Richard P. Taylor
semanticscholar +1 more source
Photonic Floquet topological insulators in a fractal lattice [PDF]
Light: Science & Applications, 2020 We present Floquet fractal topological insulators: photonic topological insulators in a fractal-dimensional lattice consisting of helical waveguides. The helical modulation induces an artificial gauge field and leads to a trivial-to-topological phase ...
Zhaoju Yang +3 more
semanticscholar +1 more source
Evaluating social learning in participatory mapping of ecosystem services
Ecosystems and People, 2019 Recent studies have shown the opportunities and limitations of participatory mapping for ecosystem services management, although it is an incipient research area. One of the research questions yet to be addressed is whether the composition of stakeholder
Ana P. García-Nieto +6 more
doaj +1 more source