[图书][B] Percolation

B Bollobás, O Riordan - 2006 - books.google.com
Percolation theory was initiated some fifty years ago as a mathematical framework for the
study of random physical processes such as flow through a disordered porous medium. It …

Tortuosity-porosity relation in porous media flow

M Matyka, A Khalili, Z Koza - Physical Review E—Statistical, Nonlinear, and …, 2008 - APS
We study numerically the tortuosity-porosity relation in a microscopic model of a porous
medium arranged as a collection of freely overlapping squares. It is demonstrated that the …

Colossal magnetic moment of Gd in GaN

S Dhar, O Brandt, M Ramsteiner, VF Sapega… - Physical Review Letters, 2005 - APS
We investigate the magnetic properties of epitaxial GaN: Gd layers as a function of the
external magnetic field and temperature. An unprecedented magnetic moment is observed …

Continuum percolation thresholds in two dimensions

S Mertens, C Moore - Physical Review E—Statistical, Nonlinear, and Soft …, 2012 - APS
A wide variety of methods have been used to compute percolation thresholds. In lattice
percolation, the most powerful of these methods consists of microcanonical simulations …

Transport properties of concrete-like granular materials interacted by their microstructures and particle components

W Xu, H Sun, W Chen, H Chen - International Journal of Modern …, 2018 - World Scientific
Granular materials as typical soft matter, their transport properties play significant roles in
durability and service life in relevant practical engineering structures. Physico-mechanical …

The origin of eucrites, diogenites, and olivine diogenites: Magma ocean crystallization and shallow magma chamber processes on Vesta

BE Mandler, LT Elkins‐Tanton - Meteoritics & Planetary …, 2013 - Wiley Online Library
The asteroid 4 Vesta is one of the very few heavenly bodies to have been linked to samples
on Earth: the howardite‐eucrite‐diogenite (HED) meteorite suite. This large and diverse …

Gd-doped GaN: A very dilute ferromagnetic semiconductor with a Curie temperature above 300 K

S Dhar, L Pérez, O Brandt, A Trampert, KH Ploog… - Physical Review B …, 2005 - APS
We present a systematic study of growth, structural, and magnetic characterization of GaN:
Gd layers grown directly on 6H-SiC (0001) substrates by reactive molecular-beam epitaxy …

Thermal conductivity and tortuosity of porous composites considering percolation of porous network: From spherical to polyhedral pores

W Xu, M Jia, Z Gong - Composites Science and Technology, 2018 - Elsevier
Understanding the effect of percolation behavior of complex geometrical pores on the
tortuosity and thermal conductivity of porous composites is very crucial to the design and …

Non‐Fickian dispersion in porous media explained by heterogeneous microscale matrix diffusion

P Gouze, Y Melean, T Le Borgne… - Water Resources …, 2008 - Wiley Online Library
Mobile‐immobile mass transfer is widely used to model non‐Fickian dispersion in porous
media. Nevertheless, the memory function, implemented in the sink/source term of the …

Asymmetry in the percolation thresholds of fully penetrable disks with two different radii

JA Quintanilla, RM Ziff - Physical Review E—Statistical, Nonlinear, and Soft …, 2007 - APS
We perform simulations of continuum gradient percolation to measure the percolation
threshold of systems of fully penetrable disks of two different radii. As a function of volumetric …