beryllium  oxide  (beo)  nanopowder  was  synthesized  using  sol-gel method  and  the  effects  of  changes of  chemical  reagents  were investigated.  because  of  tissue  equivalence  and  other  outstanding thermoluminescence  (tl) properties of  the bulk material  in x and γ dosimetry, the applicability of this nanostructure in tl dosimetry was studied  following  irradiation to  the 137 c...

this article describes the preparation and analysis of nano hydroxyapatite (ha) films on stainless steel 316l through sol-gel technique. the process started with preparation of a nitrate and phosphate sol. after aging the sol for 24 h at room temperature a ss316 substrate was dip-coated and heat-treated at 350 to 450 °c for different times in air. the coating phase and structure on substrate we...

in this research, the thin films of n-s doped titanium dioxide (tio2) were successfully prepared by simple sol-gel method in the presence of tetrabutylorthotitanate as a starting reagent. furthermore, titanium dioxide (tio2) was functionalized with thiourea. furthermore, n-s doped titanium dioxides (nsto) were fixed on glass balls by glass balls fixed-bed reactor system. besides, the effect of ...

A new combustion model is developed and applied to simulate combustion in dual-fuel engines in which the premixed natural gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a flame propagation model. A G-equation model previously developed to simulate SI engine combustion was incorporated with an auto-ignition model to simu...

Abstract. In present paper, various industrial applications of the sol-gel technology will be briefly introduced. In particular, the current development status and technological issues of sol gel derived functional nanoparticles in electronic and industrial materials will be reviewed. Productions and surface modifications of nanoparticles by sol-gel processing, their incorporations into nanocom...

Abstract Polycrystalline Co-Zn nanoferrites doped with rare earth Dy 3+ ions having general chemical formula Co 0.9 Zn 0.2 x Fe 1.9-x O 4 (x = 0.0, 0.015, 0.03, 0.045 and 0.06) were synthesized via sol-gel auto-combustion route. Powder X-ray diffraction (XRD), scanning electron microscopy (SEM) Fourier transform Infrared Spectra (FTIR) performed to investigate the structural, microstructral, su...

Grifolan is an antitumor (13)-ƒÀ-D-glucan with a ƒÀ-glucosyl substitution at C-6 of every three main chain units, and is produced by Grifola frondosa. Grifolan possesses two different solid-state conformations, N (native) and H (helix) (N. Ohno et al., Chem. Pharm. Bull., 34, 2555 (1986)), and both form a gel in an aqueous neutral media. In this study, the gel-to-sol or sol-to-gel transition of...

Abstract A ternary system involving copper-substituted ceria (Cu:CeO 2 ) 0.95− y (GO) (SrTiO 3 0.05 nanocomposite where the GO concentration (y) is varied between 0.15 and 0.30. The innovation of this work lies in purposeful assembly using a grinding method, which was optimized through individual fabrication Cu-doped CeO with different CuO concentrations. In first, various concentrations ( x = ...