in this paper, nano fibers (engelhard corporation titanosilicate number 10 / polyacrylonitrile) ets-10 / pan, as a composite exchanger to absorb heavy metals, were synthesized and optimized. several parameters were affected on this absorption. results show that the optimization sizes of the nano fibers are about 75 nanometers. structures were analyzed by scanning electron microscope (sem) and e...

Article Info The aim of this study is to investigate the contents of essential, macro and micro elements by the energy-dispersive X-ray fluorescence spectrometry (EDXRF) in different seaweeds (10 red algae, 5 green algae)from collected different regions of Visakhapatnam coast(India). Seaweeds from different estuarine stations were analyzed by X-ray fluorescence, providing results for the concen...

Nonlinear dispersive wave equations arise naturally in scientific and engineering fields such as fluid dynamics, electromagnetic theory, quantum mechanics, optical communication, nonlinear optics etc. Many important questions (both in theory and applications) are related to the interaction of two effects: energy spreading (dispersion, diffraction) and energy concentrating (nonlinear self-trappi...

INSTRUMENTATION The EnergyDispr5jy Spectrometer The Solid state x-ray detector or energy-dispersive spectrometer (EDS) was 1°Ped in the late l960s and rapidly found use on electron-beam instruments rald er a!., 1968) because of its speed in collecting and simultaneously displaying da from a wide energy range. Its small size, but relatively large collection angle 123 Authors Copy

We study dispersive properties for the wave equation in the Kerr spacetime with small angular momentum. The main result of this paper is to establish uniform energy bounds and local energy decay for such backgrounds. This follows similar results for the Schwarzschild space-time proved earlier in [4], [9] and [12] and extended in earlier work [32] of the authors and collaborators.

The intercalation reactions have been studied using in situ energy dispersive X-ray diffraction; ordered second stage heterostructures were observed as intermediate phases, which is almost unprecedented for rigid layer host materials.