We present the results from a study of the spatial distributions of cooling gas and intrinsic X-ray absorbing material in a sample of nearby, X-ray bright cooling flow clusters observed with the Position Sensitive Proportional Counter (PSPC) on ROSAT. Our method of analysis employs X-ray colour profiles, formed from ratios of the surface brightness profiles of the clusters in selected energy ba...

Using optical levitation of individual 3-10-/Lm droplets, we investigate the resonance structure of the light intensity scattered at an angle of approximately 900 by a dielectric droplet, a slightly absorbing droplet, and composite inhomogeneous droplets. We find in all the cases that the resonance structures of dielectric, weakly absorbing, and composite inhomogeneous spheres are almost identi...

It is often assumed that adding losses to a resonant system necessarily broadens the width of resonance. Here, scattering spectrum gold nanoparticles in P3HT (strongly absorbing) and PMMA (low loss) were measured using dark field microscopy surprisingly, linewidth was halved lossy medium. To gain physical insight into this unusual result, Green function analysis employed, roles permittivity, bo...

[1] We compare Arecibo dual-polarization radar image data for Venus to Magellan images and emissivity data to investigate the physical properties of volcanic deposits. Radar waves can easily penetrate smooth mantling layers such as ash, aeolian and craterderived deposits. If a circularly polarized radar wave refracts into a surface that is smooth at wavelength scales, the vertical component of ...

An activated carbon/epoxy composite was synthesized in which waste mango leaves biomass used as the carbon source. To create a sufficient amount of porosity biomass, simple process carbonization followed by its activation used. The morphology and material were studied SEM, TEM, BET analysis, confirmed presence macro- mesopores material. with 3 mm thickness gave highest reflection loss (RL) ? 39...