Here preparation of high surface area activated reduced graphene oxide (arGO) oxidized into a 3D analogue defect-rich GO (dGO) is reported. Surface oxidation arGO results in carbon to oxygen ratio C/O = 3.3, similar the state while preserving BET about 880 m2 g?1. Analysis shows abundance functional groups which converts hydrophobic precursor hydrophilic material. High carbons provide whole for...

since heavy metals are considered as one of the major pollutants threatening, the main goal of this study was to bring out the concentrations of pb, zn and mn in the surface sediments off bushehr in the persian gulf. for this purpose, after collection of samples, the concentrations of the three metals in surface sediments were measured through the atomic absorption. the results were compared wi...

OBJECTIVES We attempted to determine the accuracy and pitfalls of calculating the mitral regurgitant orifice area with the proximal isovelocity surface area method in a clinical series that included patients with valvular prolapse and eccentric jets. BACKGROUND The effective regurgitant orifice area, a measure of lesion severity of mitral regurgitation, can be calculated by the proximal isove...

The effective surface area ae of 14 variants of three highly effective types of packings (IMTP, Raschig Super-Ring (RSR) and Ralu-Flow) made of stainless steel or plastic is investigated as a function of the liquid superficial velocity. The packing size varied from 20 to 70 mm, and the liquid superficial velocity from 5 and 200 m/(mh). The comparison of the obtained data shows the following: Am...

Abstract We demonstrate a simple, cost-effective method to enhance the photoluminescence intensity of monolayer MoS 2 . A hexagonal symmetric Au metasurface, made by polystyrene nanosphere lithography and metal coating, is developed By using nanospheres different sizes, localized surface plasmon resonances metasurfaces can be effectively tuned. transferring onto signal significantly enhanced up...

Background: One area of nanoscience deals with nanoscopic interactions between nanostructured materials and biological systems. To elucidate the effects of the substrate surface morphology and viscoelasticity on cell proliferation, fractal analysis was performed on endothelial cells cultured on nanocomposite samples based on silicone rubber (SR) and various concentrations of organomodified nano...