Results 21 to 30 of about 573,156 (305)

Modeling fractal structure of city-size distributions using correlation functions.

open access: yesPLoS ONE, 2011
Zipf's law is one the most conspicuous empirical facts for cities, however, there is no convincing explanation for the scaling relation between rank and size and its scaling exponent.
Yanguang Chen
doaj   +1 more source

Effect of pulse laser frequency on PLD growth of LuFeO3 explained by kinetic simulations of in-situ diffracted intensities

open access: yesScientific Reports, 2022
Atomistic processes during pulsed-laser deposition (PLD) growth influence the physical properties of the resulting films. We investigated the PLD of epitaxial layers of hexagonal LuFeO $$_3$$ 3 by measuring the X-ray diffraction intensity in the ...
Vít Gabriel   +9 more
doaj   +1 more source

Scaling Exponents of Time Series Data: A Machine Learning Approach

open access: yesEntropy, 2023
In this study, we present a novel approach to estimating the Hurst exponent of time series data using a variety of machine learning algorithms. The Hurst exponent is a crucial parameter in characterizing long-range dependence in time series, and ...
Sebastian Raubitzek   +3 more
doaj   +1 more source

Copolymer networks and stars: Scaling exponents [PDF]

open access: yesPhysical Review E, 1997
We explore and calculate the rich scaling behavior of copolymer networks in solution by renormalization group methods. We establish a field theoretic description in terms of composite operators. Our 3rd order resummation of the spectrum of scaling dimensions brings about remarkable features: The special convexity properties of the spectra allow for a ...
von Ferber, Christian, Holovatch, Yurij
openaire   +2 more sources

Scaling exponent of each text belonging to the different genres in Korean texts.

open access: yes, 2023
Scaling exponent of each text belonging to the different genres in Korean texts.
Minhyuk Jeong (16913876)   +8 more
core   +1 more source

Sizing up allometric scaling theory. [PDF]

open access: yesPLoS Computational Biology, 2008
Metabolic rate, heart rate, lifespan, and many other physiological properties vary with body mass in systematic and interrelated ways. Present empirical data suggest that these scaling relationships take the form of power laws with exponents that are ...
Van M Savage   +2 more
doaj   +1 more source

Percolation critical exponents in scale-free networks [PDF]

open access: yesPhysical Review E, 2002
We study the behavior of scale-free networks, having connectivity distribution P(k) k^-a, close to the percolation threshold. We show that for networks with 34.
Cohen, Reuven   +2 more
openaire   +3 more sources

Mean field approximation for biased diffusion on Japanese inter-firm trading network. [PDF]

open access: yesPLoS ONE, 2014
By analysing the financial data of firms across Japan, a nonlinear power law with an exponent of 1.3 was observed between the number of business partners (i.e. the degree of the inter-firm trading network) and sales.
Hayafumi Watanabe
doaj   +1 more source

Anomalous Scaling Exponents in Nonlinear Models of Turbulence [PDF]

open access: yesPhysical Review Letters, 2006
We propose a new approach to the old-standing problem of the anomaly of the scaling exponents of nonlinear models of turbulence. We construct, for any given nonlinear model, a linear model of passive advection of an auxiliary field whose anomalous scaling exponents are the same as the scaling exponents of the nonlinear problem.
Angheluta, L   +4 more
openaire   +7 more sources

A Simplified Scaling Law of Cell-Dendrite Transition in Directional Solidification

open access: yesAdvances in Condensed Matter Physics, 2019
To describe the cell-dendrite transition (CDT) during directional solidification, a new simplified scaling law is proposed and verified by quantitative phase field simulations.
Yaochan Zhu   +3 more
doaj   +1 more source

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