fluoride-containing solutien. Commercially pure titanium (CP-Ti) and six titanium-based alloys were used: Ti-O.15Pd, Ti6Al-4V, Ti-7Nb-6Al, Ti-55Ni, Ti-10Cu, and Ti-20Cr. Two test solutions were prepared fbr immersion of polished titanium and titanium alloys: one consisting of O,2% NaF + O,9% NaCl (pH 3.8 with lactic acid) and the other of O.1 mol/1 H202 + O.9% NaCl (pH 5.5). Following immersion...

OBJECTIVES Ti, which is biocompatible and resistant to corrosion, is widely used for dental implants, particularly in patients allergic to other materials. However, numerous studies have reported on Ti allergy and the in vitro corrosion of Ti. This study investigated the conditions that promote the elution of Ti ions from Ti implants. METHODS Specimens of commercially pure Ti, pure nickel, a ...

Two-step thermal oxidation was proposed for Ti and Ti alloys as a surface-treatment process for preparing an anatase-containing TiO2 layer. This process consisted of treatment in a CO-containing atmosphere (first step) and subsequent treatment in air (second step). In this chapter, first, the current status of TiO2 coating onto Ti and Ti alloys for biomedical applications is reviewed; then our ...

In the context of this problem, we need to be very specific on choosing an uncovered sk, tk-path at each iteration. Fix a vertex r of G as the root of the tree. For each pair (si, ti), let LCA(si, ti) denote the least common ancestor of si and ti, which is the vertex at the intersection of the paths from si to r and from ti to r. Note that LCA(si, ti) could be si or ti. Let d(si, ti) denote the...

Introduction: A system of solar composition is so reducing that Ti and Ti can coexist, making the valence of Ti a valuable indicator of fO2 conditions during formation of nebular materials. The Ti/Ti ratios observed in the Ti-rich phases fassaite and rhönite in coarse-grained refractory inclusions from CV3 chondrites have been shown [1,2] to be quantitatively consistent with formation in a gas ...

The present research study was undertaken at poultry research unit of Agricultural University, Peshawar, Pakistan in June-July, 2010 to investigate the effect of different timings of supplementing medicinal plants (Berberis lycium, Allium stivum, Solanum nigrum and Terminalia arjuna) infusion on the liver function and lipid profile of broiler at day-42. 240 day-old boiler chickens were randomly...