| 0:00:03 | granular materials that systems of dissipated the interacting microscopic particles |
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| 0:00:09 | in the receipt known as a granular cows the individual the grain interact mainly by |
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| 0:00:14 | instantaneous binary collisions |
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| 0:00:17 | you to the and elastic nature of the collisions |
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| 0:00:21 | the system loses and actually which is expressed by the decay end time of the |
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| 0:00:25 | granular temperature defined as the mean internal free energy per particle |
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| 0:00:33 | the evolution of forestry granular cast passes through several stages |
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| 0:00:39 | after a fast kinetic machine |
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| 0:00:41 | the system converges to its typical velocity distribution |
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| 0:00:45 | which just rats to so-called homogeneous coding state |
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| 0:00:48 | the temperature decreases to dissipate of collisions |
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| 0:00:52 | while the system remains spatially homogeneous |
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| 0:00:55 | nato local intensity fluctuations maybe to the spontaneous formation of clusters which may be camping |
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| 0:01:01 | statement depending on the particle interactions |
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| 0:01:05 | in our paper we are interested in the decay of temperature and the homogeneous coding |
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| 0:01:09 | state |
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| 0:01:10 | the coding of a granular gas depends on the particle interaction model of the system |
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| 0:01:16 | then elastic nature of the correlations is characterized by a coefficient of mama restitution defined |
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| 0:01:22 | as the ratio of the normal component of the relative velocities before and after condition |
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| 0:01:28 | standard descriptions of granular classes consider constant coefficients of restitution eating to a queen behavior |
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| 0:01:34 | known as have slow all of the scholastic particles using a different coding all |
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| 0:01:40 | recently that has been shown in experiments as well as some simulations that the coefficient |
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| 0:01:45 | of mama restitution describing the coalition of rough three years materials a stochastic nature that |
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| 0:01:51 | can be described by a double exponential probability density |
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| 0:01:56 | we see histograms of the coefficient of restitution |
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| 0:01:59 | for different impact velocities obtained by experiments of particle impacts of rafts very kirkpatrick |
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| 0:02:06 | we show by means of kinetic theory and simulation that the cooing maybe a what |
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| 0:02:11 | these particles deviates from how slow as well as from the expression for with scholastic |
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| 0:02:16 | particles |
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| 0:02:18 | all voted the mediation from the scholastic cases very small |
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| 0:02:22 | the stochastic nature has a clear impact on the system dynamics |
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