Different Aluminum: alkaline earth metal atomic weight ratios effects on structure transformations in alanates nanopowders were studied. Changes in crystal structures from alane to alanates by increasing alkaline earth metals dopants in the mixture with slight changes in crystal structures from rhombohedral centered – trigonal (alane) to trigonal (magnesium alanate), and monoclinic (calcium ala...

The feasibility and parameters optimization of AA5183 aluminum cladding on AISI 1018 steel by electro spark microwelding (ESM) and the corrosion resistance of the clad plate were investigated. The optimum conditions were found as 15 A, 10%, 800 Hz and 2500 rpm for P, D, F and R factors, respectively. Confirmation test under optimum conditions showed that the model can be effectively used to pre...

M. Gonella, MD, Servizio di Nefrologia e Dialisi, Ospedale S. Spirito, I-15033 Casale Monferrato (Italy) Dear Sir, Despite early suggestions about aluminum (Al) absoφtion and toxicity in renal failure [ 1 ], Al hydroxide was widely used as a phosphate binder until a few years ago. In the late 70s, Al metabolism was more deeply investigated and its deposition in various tissues was found to be c...

The Constant Capacitance model provided a quantitative description of o-phosphate adsorption by 44 noncalcareous soils whose pH values ranged from 4.9 to 7.6. The intrinsic surface protonationdissociation constants, capacitance density, and phosphate packing area parameters required by the model were adopted from model calculations on reference hydrous oxide minerals. The intrinsic phosphate su...

OBJECTIVES The overall objective was to assess the role of aluminum dust and fumes in the aluminum foundry (Al-F) in generating local inflammation in the respiratory tract, which may lead to induction and elicitation of occupational asthma and fibrosis. To understand the underlying mechanisms of involving particles from foundry, a long-term study was performed on rats. MATERIALS AND METHODS P...

Two 51-kD aluminum (Al)-induced proteins (RMP51, root membrane proteins of 51 kD) were recently discovered in an aluminum-resistant cultivar of wheat (Triticum aestivum) cv PT741 (Basu et al., 1994a). These proteins segregate with the aluminum resistance phenotype in a segregating population arising from a cross between Al-resistant cv PT741 and Al-sensitive cv Katepwa (Taylor et al., 1997). Th...