in this study, the effect of temperature on the diffusion welding of az31 magnesium alloy and 7075 aluminum was discussed. diffusion welding temperature was the most important parameter since all mechanisms are sensitive to temperature in diffusion welding method. intrusive contacts between the two alloys at temperatures of 430, and 440 °c 450 and took 60 min. in all tests constant pressure and...

The sulphonylurea receptor (SUR1) subunit of the ATP-sensitive potassium (KATP) channel is a member of the ATP-binding cassette (ABC) protein family. Binding of MgADP to nucleotide-binding domain 2 (NBD2) is critical for channel activation.We identified a residue in NBD2 (G1401) that is fully conserved among ABC proteins and whose functional importance is unknown. Homology modelling places G140...

The novel sulfonylthiourea 1-[[5-[2-(5-chloro-o-anisamido)ethyl]-2-methoxyphenyl]sulfonyl]-3-methylthiourea (HMR 1883), a blocker of ATP-sensitive K(+) channels (K(ATP) channels), has potential against ischemia-induced arrhythmias. Here, the interaction of HMR 1883 with sulfonylurea receptor (SUR) subtypes and recombinant K(ATP) channels is compared with that of the standard sulfonylurea, glibe...

Electrochemical impedance spectroscopy has been used to evaluate the change in interfacial capacitance upon calcium and magnesium coordination to a phosphate-modified electrode. The phosphate electrode was prepared via immobilization of phosphorylated, thiol-containing, serine analogues onto gold. Upon subjection to calcium and magnesium, a substantial drop in capacitance was observed. Magnesiu...

Data were obtained on the copolymerization of ethylene with α-olefins over supported titanium–magnesium catalysts (TMC) prepared same magnesium dichloride support but differing in composition and oxidation state titanium. The kinetics 1-hexene TMC different compositions studied. produced ethylene–1-hexene copolymers, their molecular weight distribution, thermophysical characteristics, branching...