We proposed a spatially resolved optical emission spectrometer (SROES) for analyzing the uniformity of plasma density for semiconductor processes. To enhance the spatial resolution of the SROES, we constructed a SROES system using a series of lenses, apertures, and pinholes. We calculated the spatial resolution of the SROES for the variation of pinhole size, and our calculated results were in g...

Abstract The main aim of this experimental study is to test the novel type coupon installation. This set-up was used carry out corrosion process under aggressive conditions. Moreover, effect inhibitors on scale-forming tendency evaluated. corrosive conditions were defined by using Langelier Saturation Index (this index an approximate indicator degree saturation CaCO 3 in water) and Ryznar stabi...

X-ray photoelectron spectroscopy (XPS) and time-of-flight secondary ion mass spectrometry (ToF-SIMS) were used to analyse the surface modifications of AA-2024-T3 induced by model pre-treatment baths such as H2SO4, HNO3, in a mixture both acids. These acids are commonly for pickling treatment, applied before conversion coating deposition. ToF-SIMS XPS measurements showed significant copper enric...

The compact measurement system for absolute density of oxygen ~O! atom has been developed, which employs a vacuum ultraviolet absorption spectroscopy ~VUVAS! technique with a high-pressure microdischarge hollow cathode lamp ~MHCL! as a light source. The influences of self-absorption, emission line profile of the MHCL, and background absorption of oxygen molecule (O2) on the determination of abs...

there are many remediating methods for the polluted soils but only phytoremediation is a cost effective, environmental friendly, aesthetically pleasing approach that is most suitable for many countries. the purpose of this study was to investigate the potential of native plants for phytoremediation of contaminated soils with lead, zinc, cadmium and nickel in the rangelands around national lead ...

Gold-silver (AuAg) nanoparticles were deposited on reduced graphene oxide (rGO), with Au wt% varying from 34.6 to 46.2 and Ag ranging 31.7 35.3. Three AuAg/rGO samples characterized by inductively coupled plasma optical emission spectroscopy, transmission scanning electron microscopy energy-dispersive X-ray diffraction analysis. Subsequently, materials studied using the rotating disk electrode ...