triangles calculate angles given other angles 001

On angles of repose - bistability and collapse

On angles of repose - bistability and collapse
... is provided in terms of concepts of directed percolation The model sandpile used here is a two-dimensional version of an earlier (onedimensional) disordered and non-abelian sandpile [121] ‘Grains’ ... 64 On angles of repose: bistability and collapse The dynamics of the angle of repose θ(t) and of the density fluctuations φ(t) are described [23] by the following stochastic equations, which ... indication of hysteresis, since it shows that different angles of repose are attained for the same final tilt angle, depending on the prior history of the pile Next, 74 On angles of repose: bistability...
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