We combine the GMRT low frequency radio observations of SN 1993J with the VLA high frequency radio data to get a near simultaneous spectrum around day 3200 since explosion. The low frequency measurements of the supernova determine the turnover frequency and flux scale of the composite spectrum and help reveal a steepening in the spectral index, ∆α ∼ 0.6, in the optically thin part of the spectr...

in this research, high oxygen-barrier films were organized based on low-density polyethylene (ldpe)/ ethylene vinyl alcohol (evoh)/ polyethylene-grafted maleic anhydride (ldpe-g-ma) compatibilizer. the effects of 10–30 wt. % evoh and 0–10 wt. % ldpe-g-ma loadings on the properties of final films were evaluated. the morphology of specimens was observed by using scanning electron microscopy (sem)...

We report the first clear evidence for the simultaneous presence of a low frequency break and a QPO in the fluctuation power spectrum of a well known ultraluminous X-ray source (ULX) in M82 using long XMM-Newton observations. The break occurs at a frequency of 34.2 −3 mHz. The QPO has a centroid at νQPO = 114.3±1.5 mHz, a coherence Q ≡ νQPO/∆νFWHM ≃ 3.5 and an amplitude (rms) of 19% in the 2 − ...

3D object matching and registration on point clouds are widely used in computer vision. However, most existing cloud methods have limitations handling non-rigid sets or topology changes (e.g. connections separations). As a result, critical characteristics such as large inter-frame motions of the may not be accurately captured. This paper proposes statistical algorithm for registration, addressi...

This paper studies a panel data regression setting, where a break occurs at a unknown common date. In this paper, we establish the consistency and rate of convergence of the change point estimator. The break date can be estimated consistently both in …xed time horizon and large panels, which indicates that the structural change can be well detected even in short panels. Furthermore, the limitin...

Macaque monkeys and normal human observers were tested on the same apparatus for the presence of a Purkinje shift. and for spectral sensitivity under scotopic and photopic conditions. The flicker fusion point for different lights was used as a measure of visual sensitivity in these tests and the testing procedure was a four-alternative forced choice. The results show that macaque monkeys and no...

The distribution of Galactic-disk wide binaries shows a clear break in slope at projected separations of about r ⊥ ∼ 2500 AU in two basically independent surveys by Chanamé & Gould and Lépine & Bongiorno. The latter also showed that the frequency of wide-binary companions to G-star primaries declines mono-tonically as a function of companion mass. We show that both effects can be explained by t...