Now showing items 1-10 of 148
Integrating a Hierarchy of Simulation Tools for Legged Robot Locomotion
(Georgia Institute of Technology, 2008-09)
We are interested in the development of a variety of legged robot platforms intended for operation in unstructured outdoor terrain. In such settings, the traditions of rational engineering design, driven by analytically ...
Theoretical studies of the generation, detection and application of massively entangled states of Bose condensed atoms
(Georgia Institute of Technology, 2004-04-01)
ITR: Modelling and simulations of quantum phenomena in semiconductor structures of reduced dimensions
(Georgia Institute of Technology, 2008-09-28)
We are conducting first-principles simulations of the atomic configurations, electronic structure, dynamic properties, and transport in semiconductor nanowires and nanostructures using computational methods based on ...
Atomically-resolved electronic structure of epitaxial graphene
(Georgia Institute of Technology, 2009-01)
Development of Porous Silicon Microfilters
(Georgia Institute of Technology, 2009-05-04)
This study develops a one-step anodization separation process (OSS) after examining two step and multi step liftoff procedures in which porous silicon (PS) films lift off from their substrates. This lift-off process provides ...
Design of an actively cooled grid system to improve efficiency in inertial electrostatic confinement fusion reactors
(Georgia Institute of Technology, 2008-05-05)
Traditional inertial electrostatic confinement (IEC) fusion reactor designs utilize an ion accelerating grid fabricated out of a refractory metal capable of operating at high temperatures to radiate off heat imparted by ...
Mach cone in a shallow granular fluid
(Georgia Institute of Technology, 2004-12-23)
We study the V-shaped wake (Mach cone) formed by a cylindrical rod moving through a thin, vertically vibrated granular layer. The wake, analogous to a shock (hydraulic jump) in shallow water, appears for rod velocities vR ...
Noise, coherent fluctuations, and the onset of order in an oscillated granular fluid
(Georgia Institute of Technology, 2004-04-30)
We study fluctuations in a vertically oscillated layer of grains below the critical acceleration for the onset of ordered standing waves. As onset is approached, transient disordered waves with a characteristic length scale ...
Phase bubbles and spatiotemporal chaos in granular patterns
(Georgia Institute of Technology, 2001-12-04)
We use inelastic hard sphere molecular dynamics simulations and laboratory experiments to study patterns in vertically oscillated granular layers. The simulations and experiments reveal that phase bubbles spontaneously ...
Signatures of glass formation in a fluidized bed of hard spheres
(Georgia Institute of Technology, 2006-04-14)
We demonstrate that a fluidized bed of hard spheres during defluidization displays properties associated with formation of a glass. The final state is rate dependent, and as this state is approached, the bed exhibits ...