Tsukahara, M Coupled tomography and distinct-element-method approach to exploring the granular media microstructure in a jamming hourglass. [electronic resource] - Physical review. E, Statistical, nonlinear, and soft matter physics Jun 2008 - 061306 p. digital Publication Type: Journal Article ISSN: 1539-3755 Standard No.: 10.1103/PhysRevE.77.061306 doi