Catégorie

Loi de probabilité

Publications associées (72)

Metastable densities for the contact process on power law random graphs

Thomas Mountford, Daniel Rodrigues Valesin

We consider the contact process on a random graph with a fixed degree distribution given by a power law. We follow the work of Chatterjee and Durrett [2], who showed that for arbitrarily small infection parameter lambda, the survival time of the process is ...

Univ Washington, Dept Mathematics2013

Relative influence of mechanical and meteorological factors on avalanche release depth distributions: An application to French Alps

Johan Alexandre Philippe Gaume

The evaluation of avalanche release depth distributions represents a major challenge for hazard management. This paper presents a rigorous formalism in which these distributions are expressed through a coupling of mechanical and meteorological factors. Con ...

2012

Coupled dynamics of the co-evolution of gravel bed topography, flow turbulence and sediment transport in an experimental channel

Fernando Porté Agel

A series of flume experiments were conducted in a large experimental channel at the St. Anthony Falls Laboratory to understand the coupled dynamics of flow and bed forms above the sediment-water interface. Simultaneous high resolution measurements of veloc ...

American Geophysical Union2012

Blackouts risk evaluation by Monte Carlo Simulation regarding cascading outages and system frequency deviation

Mokhtar Bozorg, Omid Alizadeh Mousavi

In this paper, a blackout risk assessment method is proposed considering the effects of cascading outages, the active power and frequency response of the system. Here, the Monte Carlo Simulation (MCS) is used to analyze the risk of blackouts by generating ...

Elsevier2012

A new boundary condition for large-eddy simulation of boundary-layer flow over surface roughness transitions

Fernando Porté Agel, Mahdi Abkar

Large-eddy simulations are performed to evaluate the performance of the surface boundary condition downwind of a rough-to-smooth surface transition. Two types of boundary conditions are tested: (1) The standard formulation based on local application of the ...

Taylor & Francis2012

Compressibility of Deterministic and Random Infinite Sequences

Michaël Unser, Arash Amini

We introduce a definition of the notion of compressibility for infinite deterministic and i.i.d. random sequences which is based on the asymptotic behavior of truncated subsequences. For this purpose, we use asymptotic results regarding the distribution of ...

IEEE2011

Determination of nanoparticle size distribution together with density or molecular weight by 2D analytical ultracentrifugation

Francesco Stellacci, Randy Patrick Carney, Jiwon Kim

Nanoparticles are finding many research and industrial applications, yet their characterization remains a challenge. Their cores are often polydisperse and coated by a stabilizing shell that varies in size and composition. No single technique can character ...

2011

Power Law and Exponential Decay of Intercontact Times between Mobile Devices

Jean-Yves Le Boudec, Milan Vojnovic

We examine the fundamental properties that determine the basic performance metrics for opportunistic communications. We first consider the distribution of intercontact times between mobile devices. Using a diverse set of measured mobility traces, we find a ...

2010

Signification of the phase function parameter gamma explored with a fractal distribution of scatterers

Christian Depeursinge, Pierre Marquet, Stéphane Chamot, Elena Migacheva

The optical properties within limited volumes of diffusive media can be probed by carrying spatially-resolved measurements of diffused light at short source-detector separation (typically one scattering mean free path). At such distance, analytical models ...

Optical Society of America2010

Alternative(s) to fractional-diffusion equations in bedload transport models.

Christophe Ancey, François Mettra, Valentin Métraux

The idea of stochastic sediment transport models emerged in the 1930s, notably with the doctoral work of Hans A. Einstein (1936). Einstein's seminal work gave impulse to several stochastic models, which usually led to thin-tailed or bounded distributions f ...

2010

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