Drinking water potentially affects a variety of diseases, and their relationship to environmental risk factors is an emerging area that still needs be clarified. Studies have reported aluminum fluoride, elements naturally found in water, adverse effect on human health with increasing concentration drinking which affected by aspects. High levels can cause dementia. Many studies association betwe...

OBJECTIVE The aim of this study was to evaluate the effect of neutral sodium fluoride (NNaF) gel and acidulated phosphate fluoride (APF) gel on the surface roughness of colored compomer (Twinky Star), conventional compomer (Compoglass F) and resin-modified glass-ionomer cement (RMGIC) (Photac-Fil). MATERIAL AND METHODS A total of 45 standardized disc-shaped specimens were prepared for each ma...

Abstract In this study, perfluorobutyl iodide (PI) and glycidyl azide polymer (GAP) were used to synthesize perfluorobutane (PGAP) coated on aluminum powder form Al@PGAP. PGAP, an energetic fluoride, was explore the combustion promotion of powder. The Al@PGAP showed better thermal reaction performance. exothermic enthalpy increased by about 1.5 times, with higher heat, lower ignition temperatur...

The vibrational modes of three solid AlF3 phases (alpha, beta, and amorphous high surface area AlF3) are investigated. Calculations have been performed using hybrid exchange correlation functionals to determine the equilibrium geometries and Gamma-point phonon frequencies for the alpha-AlF3 and beta-AlF3 phases. The calculated optical modes are in excellent agreement with experiment. The IR abs...

Porous granular ceramic adsorbents containing dispersed aluminum and iron oxides were synthesized by impregnating with salt solutions followed by precipitation at 600°C. In the present work detailed studies were carried out to investigate the effect of contact time, adsorbent dose, initial solution pH and co-existing anions. Characterization studies on the adsorbent by SEM, XRD, EDS, and BET an...

Research into an optical thin film coating that enhances the current design of lithographic excimer laser gratings operating at 193 and 157 nm has been performed. The goal of such research is to improve durability and reflective efficiency. Possible coating materials include the fluorides, magnesium fluoride, barium fluoride, lanthanum fluoride and calcium fluoride. Each fluoride material was d...

<p><span>This paper has clarified the conventional silica doped (SiGeO2) and aluminum fluoride (AlF3) fibers for low loss minimum dispersion effects upgrading fiber-optic communication systems. The total with losses are modeled both fibers. Fiber bandwidth power received estimated based on different dopant ratios. spectral thermal applied study assured negative of increasing ambient...