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Crosswalk detection based on laser scanning from moving vehicle
(07/22/2015)
The safety plays the most important role for both pedestrian and driver in autonomous, semi-autonomous or non-autonomous vehicle. To improve pedestrian safety, this paper presents a new type of laser feature extraction ...
Quantum interference in grazing scattering of swift He atoms from LiF(001) surfaces: Surface eikonal approximation
(Elsevier Science, 2009-01)
This work deals with the interference effects recently observed in grazing collisions of few-keV atoms with insulator surfaces. The process is studied within a distorted-wave method, the surface eikonal approximation, ...
Validity of the Kirchhoff Approximation for the Scattering of Electromagnetic Waves from Dielectric, Doubly Periodic Surfaces
(Optical Society of America, 2017-12)
Accuracy of Kirchhoff approximation (KA) for rough-surface electromagnetic wave scattering is studied by comparison with accurate numerical solutions in the context of three-dimensional dielectric surfaces. The Kirchhoff ...
Approximating implicit curves on plane and surface triangulations with affine arithmetic
(ElsevierAmsterdam, 2014-05)
We present a spatially and geometrically adaptive method for computing a robust polygonal approximation of an implicit curve defined on a planar region or on a triangulated surface. Our method uses affine arithmetic to ...
On the undamped free vibration of a mass interacting with a Hertzian contact stiffness
(2011-12-01)
Three methods are used to determine the natural frequency of undamped free vibration of a mass interacting with a Hertzian contact stiffness. The exact value is determined using the first integral of motion. The harmonic ...
On the contact stiffness and nonlinear vibration of an elastic body with a rough surface in contact with a rigid flat surface
(Elsevier B.V., 2015-01-01)
The surface topography of engineering rough surfaces has an enormous influence on contact mechanics of the interface and further the dynamics of the contact system. In this paper, the force-deflection characteristic and ...
Numerical solution of the dip coating process with insoluble surfactants: Langmuir or a linear approximation for surface tension?
(Planta Piloto de Ingeniería Química, 2013-01)
In this work the dip coating process when an insoluble surfactant is adsorbed at the interface is numerically studied. The work centers in the applicability of the linear approximation usually employed to model the ...
7D Quantum Dynamicsof H2 scattering form Cu(111): the accuracy of the phonon sudden approximation
(Oldenbourg Verlag, 2013-06)
The correct prediction of elementary processes occurring when H 2 scatters from a metal surface is one of the main challenges of surface science. In the field, the scattering of H 2 from Cu(111) has been considered a ...