The scanning electron microscopy (SEM) technique combined with an EDXRS system has been applied to the study of ancient glasses, to determine whether repairs have been carried out or substitutions made of damaged parts [1]. In this work, we exploit image processing technique in order to enhance the SEM digital image, to improve its readability and, therefore, the identification of significant d...

Oligosaccharide Mass Profiling (OLIMP) allows a fast and sensitive assessment of cell wall polymer structure when coupled with Matrix Assisted Laser Desorption Ionisation Time Of Flight Mass Spectrometry (MALDI-TOF MS). The short time required for sample preparation and analysis makes possible the study of a wide range of plant organs, revealing a high degree of heterogeneity in the substitutio...

introduction: the present study evaluated the element distribution in completely set calcium-enriched mixture (cem) cement after application of 35% carbamide peroxide, 40% hydrogen peroxide and sodium perborate as commercial bleaching agents using an energy-dispersive x-ray microanalysis (edx) system. the surface structure was also observed using the scanning electron microscope (sem). methods ...

This work deals with the influence of gallium addition on constitution and formation phases in Al-rich corner Al–Mn system during casting. binary ternary Al–Mn–Ga alloys were cast into a copper mould cavity diameter 5 mm. The microstructures produced characterized by scanning electron microscopy, energy dispersive X-ray spectroscopy, backscatter diffraction diffraction. characterization reveale...

Modern analytical methods (optical and electron microscopy, X-ray microanalysis) were used to study the unique samples of sulfide ores from Norilsk ore field Mining Museum collections Saint Petersburg University. Samples containing rare minerals silver platinum-group metals (sobolevskite, urvantsevite, sperrylite, argentopentlandite, froodite, kotulskite, others) studied. The chemical compositi...