Results 21 to 30 of about 48,358 (196)

Nonlinear preferential rewiring in fixed-size networks as a diffusion process [PDF]

Physical Review E, 2009
We present an evolving network model in which the total numbers of nodes and edges are conserved, but in which edges are continuously rewired according to nonlinear preferential detachment and reattachment. Assuming power-law kernels with exponents alpha and beta, the stationary states the degree distributions evolve towards exhibit a second order ...
Johnson, Samuel, Torres, Joaquin J., Marro, Joaquin   +2 more
openaire   +3 more sources

The link between gliomas infiltration and white matter architecture investigated with electron microscopy and diffusion tensor imaging

NeuroImage: Clinical, 2021
Diffuse low-grade gliomas (DLGG) display different preferential locations in eloquent and secondary associative brain areas. The reason for this tendency is still unknown.
Francesco Latini, Markus Fahlström, Andrea Beháňová, Ida-Maria Sintorn, Monika Hodik, Karin Staxäng, Mats Ryttlefors   +6 more
doaj   +1 more source

Calibration of a density-based model of urban morphogenesis. [PDF]

PLoS ONE, 2018
We study a stochastic model of urban growth generating spatial distributions of population densities at an intermediate mesoscopic scale. The model is based on the antagonist interplay between the two opposite abstract processes of aggregation ...
Juste Raimbault
doaj   +1 more source

Modeling inconsistencies in people's preferential choices with sequential sampling models [PDF]

, 2014
People are faced with hundreds of decisions every day, of which many involve choices between multi-attribute options. To study how people evaluate these options, different approaches have been suggested.
Berkowitsch, Nicolas A.J.
core   +1 more source

Effects of radiation, curvature, and preferential diffusion on the extinction of laminar non-premixed flames

AIP Advances, 2022
The combined effects of radiative heat loss, curvature, and preferential diffusion on laminar non-premixed flames (or flamelets) are investigated in this work by using asymptotic analysis.
Yushan Gao, Wang Han, Zheng Chen, Qingfei Fu, Lijun Yang   +4 more
doaj   +1 more source

Effects of Water Mist on the Initial Evolution of Turbulent Premixed Hydrogen/Air Flame Kernels

Energies
In this study, a series of carrier-phase direct numerical simulations are conducted on spherical expanding premixed hydrogen/air flames with liquid water addition.
Riccardo Concetti, Josef Hasslberger, Nilanjan Chakraborty, Markus Klein   +3 more
doaj   +1 more source

Diffusion tensor MR microscopy of tissues with low diffusional anisotropy

Radiology and Oncology, 2016
Diffusion tensor imaging exploits preferential diffusional motion of water molecules residing within tissue compartments for assessment of tissue structural anisotropy.
Bajd Franci, Mattea Carlos, Stapf Siegfried, Sersa Igor   +3 more
doaj   +1 more source

First-principles molecular dynamics simulations of proton diffusion in cubic BaZrO $$_3$$ 3 perovskite under strain conditions

Materials for Renewable and Sustainable Energy, 2016
First-principles molecular dynamics simulations have been employed to analyse the proton diffusion in cubic BaZrO $$_3$$ 3 perovskite at 1300 K. A non-linear effect on the proton diffusion coefficient arising from an applied isometric strain up to 2  $$\%
Marco Fronzi, Yoshitaka Tateyama, Nicola Marzari, Michael Nolan, Enrico Traversa   +4 more
doaj   +1 more source

Technical Note: The use of an interrupted-flow centrifugation method to characterise preferential flow in low permeability media [PDF]

Hydrology and Earth System Sciences, 2015
We present an interrupted-flow centrifugation technique to characterise preferential flow in low permeability media. The method entails a minimum of three phases: centrifuge-induced flow, no flow and centrifuge-induced flow, which may be repeated several
R. A. Crane, M. O. Cuthbert, W. Timms
doaj   +1 more source

Modeling Long-Distance Forward and Backward Diffusion Processes in Tracer Transport Using the Fractional Laplacian on Bounded Domains

Fractal and Fractional, 2023
Recent studies have emphasized the importance of the long-distance diffusion model in characterizing tracer transport occurring within both subsurface and surface environments, particularly in heterogeneous systems.
Zhipeng Li, Hongwu Tang, Saiyu Yuan, Huiming Zhang, Lingzhong Kong, HongGuang Sun   +5 more
doaj   +1 more source