We report the experimental and theoretical study of electrostatically driven granular material. We show that the charged granular medium undergoes a hysteretic phase transition from the immobile condensed state (granular solid) to a fluidized dilated state (granular gas) with a changing applied electric field. In addition we observe a spontaneous precipitation of dense clusters from the gas pha...

Granular cell astrocytoma (GCA) is an uncommon type of granular cell tumours (GCTs) in the central nervous system. Granular cells in these tumours are of enigmatic origin. We report a case of cerebral GCA in a 59-year-old man who suffered from diabetes and Addison-Biermer disease. The tumour was localized in the left parietal lobe. Microscopically, the tumour was almost entirely composed of lar...

Driven granular media constitute model systems in out-of-equilibrium statistical physics. By assimilating the motions of particles to those atoms, by analogy, one can obtain macroscopic equivalent phase transitions. Here, we study fluid-like and crystal-like two-dimensional states a driven material. In our experimental device, tunable magnetic field induces controls remote interactions between ...

Abstract On the basis of intimate relation between Nambu dynamics and hydrodynamics, hydrodynamics on a non-commutative space (obtained by quantization space), proposed in his last work, is formulated as granular material. In Sect. 2, done using Moyal product, hydrodynamic simulation performed for thus-obtained 2D fluid, which flows inside channel with an obstacle. The obtained results differ t...

We demonstrate that stability criteria can be used to calculate the maximum angle of stability um of a granular medium composed of spherical particles in three dimensions and circular disks in two dimensions. The predicted angles are in good agreement with the experimental results. Furthermore, we determine the dependence of um on cohesive forces, applying the results to wet granular material b...