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The Saga of Equitable Oxygen Saturation Measurement Continues: The Role of Arterial Blood Gases. [PDF]

Am J Respir Crit Care Med
Chesley CF, Anesi GL.
europepmc   +1 more source

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Hydrodynamics of granular gases of viscoelastic particles

Philosophical Transactions Series A, Mathematical, Physical, and Engineering Sciences, 2002
Our study examines the long-time behaviour of a force-free granular gas of viscoelastic particles, for which the coefficient of restitution depends on the impact velocity, as it follows from the solution of the impact problem for viscoelastic spheres. Starting from the Boltzmann equation, we derived the hydrodynamic equations and obtained microscopic ...
Thorsten Pöschel, Nikolay Brilliantov
exaly   +5 more sources

Granular Gases

Lecture Notes in Physics, 2001
exaly   +2 more sources

Models of Free Cooling Granular Gases [PDF]

Advances in Complex Systems, 2001
We consider the free evolution of systems of granular particles whose dynamics is characterized by a collision rule which preserves the total momentum, but dissipates the kinetic energy. Starting from an inelastic version of a minimal model proposed by Ulam for a gas of Maxwell molecules, we introduce a new lattice model aimed at investigating the ...
Baldassarri, AndreaMarconi, U Marini BettoloPuglisi, Andrea   +3 more
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Lyapunov spectrum of granular gases

Physical Review E, 2001
We calculate and study the Lyapunov spectrum of a granular gas maintained in a steady state by an isokinetic thermostat. Considering restitution coefficients greater than unity allows us to show that the spectra change smoothly and continuously at equilibrium.
McNamara, S., Mareschal, Michel
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Nearly Smooth Granular Gases

Physical Review Letters, 2005
Hydrodynamic equations for nearly smooth granular gases are derived from the pertinent Boltzmann equation. The angular velocity distribution field needs to be included in the set of hydrodynamic fields. The angular velocity distribution is strongly non-Maxwellian for the homogeneous cooling state and any homogeneous steady state.
Isaac, Goldhirsch, S H, Noskowicz, O, Bar-Lev   +2 more
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Compartmentalized granular gases: flux model results

Journal of Statistical Mechanics: Theory and Experiment, 2007
A review is given of our previous work on the clustering phenomenon for vibrofluidized granular matter in an array of connected compartments, being a prime example of spontaneous pattern formation in a many-body system far from thermodynamic equilibrium.
van der Meer, Devaraj, van der Weele, Ko, Reimann, Peter, Lohse, Detlef   +3 more
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Fragmenting granular gases

Europhysics Letters (EPL), 2007
We study the dynamics of granular gases which fragment due to their collisions. We have developed a kinetic model that accounts for the correlations between grains' size and velocity at collisions. We analyze how the fragmentation events taking place at collisions affect the growth in the number of grains, and also which distribution of grain' sizes ...
R. Cruz Hidalgo, I Pagonabarraga
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Hydrodynamics of granular gases and granular gas mixtures

Journal of Fluid Mechanics, 2006
It is shown that a vertically vibrated binary granular gas mixture of light and heavy particles can segregate (in the presence of gravity) in such a way that the bottom and top layers are composed mostly of light particles, even if all other parameters (including size) are the same for both species.
D. SERERO, I. GOLDHIRSCH, S. H. NOSKOWICZ, M.-L. TAN   +3 more
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