Now showing items 11-20 of 834
Study of the Influence of Localized Vibrational Modes in Charge Transport Properties at Nanoscale Systems.
(Sociedade Brasileira de FísicaÁguas de Lindóia, 2013-05-13)
In molecular and atomic devices the interaction between electrons and ionic vibrations has an important role in electronic transport. The electron-phonon coupling can cause the loss of the electron's phase coherence, the ...
Structural integrity assessment of dissimilar girth welds in lined and clad offshore pipelines installed by the reeling method
(SOBENARio de Janeiro, 2014-11-10)
The increasing demand for energy has motivated the oil and natural gas exploration in very hostile environments, including very deep water operation and the transport of corrosive fluids. Technological advances favor the ...
On an Optimal Linear Control Applied to a Non-Ideal Load Transportation System, Modeled with Periodic Coefficients
(Trans Tech Publications Ltd, 2011-01-01)
In this paper, a load transportation system in platforms or suspended by cables is considered. It is a monorail device and is modelled as an inverted pendulum built on a car driven by a DC motor. The governing equations ...
On the intermittency of sediment transport in conditions near the threshold of motion
The dynamics of sediment particles in a at bed channel is mainly controlled by the coherent structures of the turbulent boundary layer, as intense velocity uctuations increase the instantaneous bed shear stress and ...