Silos are structures that are used for storing different types of granular material. Dynamic behavior of silos under seismic loads is very complex. In this paper seismic behavior of steel silos with different height to diameter ratios is investigated by considering granular material-structure interaction using ABAQUS finite element package. Silo wall is modeled by shell elements and its behavio...

Spirochetes are a unique group of motile bacteria that are distinguished by their helical or flat-wave shapes and the location of their flagella, which reside within the tiny space between the bacterial cell wall and the outer membrane (the periplasm). In Borrelia burgdorferi, rotation of the flagella produces cellular undulations that drive swimming. How these shape changes arise due to the fo...

We solve the feedback stabilization problem for a tank, with friction, containing liquid modeled by viscous Saint-Venant system of Partial Differential Equations. A spill-free exponential is achieved, robustness to wall friction forces. Control Lyapunov Functional (CLF) methodology two different functionals employed. These determine specific parameterized sets which approximate state space. The...