@article{b,
title = {Internal avalanches in models of granular media},
author = {Supriya Khrishnamurthy and Vittorio Loreto and Hans J. Hermmann and Mario Nicodemi and Stephane Roux},
url = {http://www.worldscinet.com/fractals/07/0701/S0218348X99000074.html, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000081441600006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a},
year = {1999},
date = {1999-01-01},
journal = {FRACTALS-COMPLEX GEOMETRY PATTERNS AND SCALING IN NATURE AND SOCIETY},
volume = {7},
pages = {51--58},
abstract = {We study the phenomenon of internal avalanching within the context of recently introduced lattice models of granular media. The avalanche is produced by pulling out a grain at the base of the packing and then studying the number of grains to be rearranged before the packing is stable again. We find that the avalanches are long-ranged, decaying as a power law. We study the distribution of avalanches as a function of the density of the packing and find that the avalanche distribution is a very sensitive structural probe of the system.},
keywords = {granular_media, herrmann, khrishnamurthy, loreto, nicodemi, roux},
pubstate = {published},
tppubtype = {article}
}
We study the phenomenon of internal avalanching within the context of recently introduced lattice models of granular media. The avalanche is produced by pulling out a grain at the base of the packing and then studying the number of grains to be rearranged before the packing is stable again. We find that the avalanches are long-ranged, decaying as a power law. We study the distribution of avalanches as a function of the density of the packing and find that the avalanche distribution is a very sensitive structural probe of the system.
@article{b,
title = {Segregation of granular mixtures in presence of compaction},
author = {Emanuele Caglioti and Antonio Coniglio and Hans J. Herrmann and Vittorio Loreto and Mario Nicodemi},
url = {http://iopscience.iop.org/0295-5075/43/5/591/, http://www.scopus.com/inward/record.url?eid=2-s2.0-0032164694&partnerID=65&md5=c108ca4627474930d839d71d325afc8b, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=000075612400017&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a},
year = {1998},
date = {1998-01-01},
journal = {EUROPHYSICS LETTERS},
volume = {43},
pages = {591--597},
abstract = {We study the segregation phenomena in granular media in the framework of Tetris-like models for granular compaction. The models, which focus on the geometrical properties of mixtures, exhibit segregation, i.e. separation of particles with different degrees of geometrical frustration. This effect is related to the effective average mobilities of the different particles. Mie study these effects in the context of an analytical mean-field-like model.},
keywords = {caglioti, coniglio, granular_media, herrmann, loreto, nicodemi, tetris},
pubstate = {published},
tppubtype = {article}
}
We study the segregation phenomena in granular media in the framework of Tetris-like models for granular compaction. The models, which focus on the geometrical properties of mixtures, exhibit segregation, i.e. separation of particles with different degrees of geometrical frustration. This effect is related to the effective average mobilities of the different particles. Mie study these effects in the context of an analytical mean-field-like model.
@article{b,
title = {A "tetris-like" model for the compaction of dry granular media},
author = {Emanuele Caglioti and Vittorio Loreto and Hans J. Herrmann and Mario Nicodemi},
url = {http://link.aps.org/doi/10.1103/PhysRevLett.79.1575, http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=A1997XT12400038&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=0c7ff228ccbaaa74236f48834a34396a},
year = {1997},
date = {1997-01-01},
journal = {PHYSICAL REVIEW LETTERS},
volume = {79},
pages = {1575--1578},
abstract = {We propose a two-dimensional geometrical model, based on the concept of geometrical frustration, conceived for the study of compaction in granular media. The dynamics exhibits an interesting inverse logarithmic law that is well known from real experiments. Moreover, we present a simple dynamical model of N planes exchanging particles with excluded volume problems, which allows us to clarify the origin of the logarithmic relaxations and the stationary density distribution. A simple mapping allows us to cast this Tetris-like model in the form of an Ising-like spin system with vacancies.},
keywords = {caglioti, granular_media, herrmann, loreto, nicodemi, tetris},
pubstate = {published},
tppubtype = {article}
}
We propose a two-dimensional geometrical model, based on the concept of geometrical frustration, conceived for the study of compaction in granular media. The dynamics exhibits an interesting inverse logarithmic law that is well known from real experiments. Moreover, we present a simple dynamical model of N planes exchanging particles with excluded volume problems, which allows us to clarify the origin of the logarithmic relaxations and the stationary density distribution. A simple mapping allows us to cast this Tetris-like model in the form of an Ising-like spin system with vacancies.
