Studies of the nonlinear Faraday effect (rotation of the plane of polarization in a longitudinal magnetic field) on resonance atomic transitions have been reported in a number of theoretical and experimental papers [1-9]. The nonlinear effect manifests itself at moderate laser intensities in the absence of atomic collisions. It leads to narrow peaks in the magnetic field dependence of Faraday r...

We have used the latest HI observations of the Small Magellanic Cloud (SMC), obtained with the Australia Telescope Compact Array and the Parkes telescope, to re-examine the kinematics of this dwarf, irregular galaxy. A large velocity gradient is found in the HI velocity field with a significant symmetry in iso-velocity contours, suggestive of a differential rotation. A comparison of HI data wit...

This paper studies recognition of fish shapes using both Region based and Contour based shape based descriptors[9]. Moment Invariants are chosen as the Region based descriptor and the Simple (geometric) shape descriptors (SSD) are used as Contour based shape descriptors. The shapes are varied through scaling and rotation. Manhattan Distance is used as the classifier. The study of the recognitio...

Almost rotation minimizing parametrization of the canal surface is given. The basic building block of our approach is the curve approximation scheme that enables us to construct a curve, called the parameter curve, on the canal surface that produces, when projected and rescaled, an almost parallel normal vector field on the spine curve. Its construction relies on our earlier methods and results...

Recently, it has been suggested that the phenomenology of flat rotation curves observed at large radii in equatorial plane disk galaxies can be explained as a manifestation General Relativity instead effect Dark Matter halos. In this paper, by using well known weak field, low velocity gravitomagnetic formulation GR, expected GR are rigorously obtained for purely baryonic models with realistic d...