New piezo oscillations with quartz cylinders cut along the optical axis

Vortex Induced Oscillations of Cylinders

The submitted fluid dynamics videos [1] depict the various orientational dynamics of a hinged cylinder suspended in a flow tank. The different behaviors displayed by the cylinder range from steady orientation to periodic oscillation and even autorotation. We illustrate these features using a phase diagram which captures the observed phenomena as a function of Reynolds number (Re) and reduced in...

Population oscillations along the cortico-striatal axis of awake behaving rats

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Regeneration of Axis Cylinders in Vitro

It has been shown for the first time that nerve fibers grow out from pieces of cerebellum of young cats and guinea pigs, when cultivated in coagulated plasma. The same phenomenon has been observed in cultures of spinal ganglia. The nerve fibers do not anastomose and they extend into the plasma unaccompanied by structures of any kind.

High Speed Piezo Steering Mirrors 6-Axis Optical Alignment Platforms Standard High Speed Tip/Tilt Platforms Piezo-Driven, Frictionless Flexure Guides, Parallel Kinematic Designs

Optical properties of a semi-infinite medium consist of graphene based hyperbolic meta-materials with tilted optical axis

In this paper, the  optical properties of a semi-infinite medium composed of graphen-based hyperbolic meta-materials with the optical axis were tilted with respect to its boundary with air, by using the  Maxwell equations; then  the homogeneous effective medium approximation method was  studied. The results showed that the orientation of the structure layers (geometric induced anisotropy) affec...