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Helium as a welding shielding gas : effects on CO₂ emissions by helium recovery and recycling system
Helium as a welding shielding gas offers unique advantages for many applications. Helium provides positive effects to most of the shielding gas mixtures used with different materials and in a variety of welding processes. ...
Adsorption of phosphorous and arsenic oxyanions to metal hydroxide and oxide surfaces
This study focuses on two quite distinct elements, phosphorous and arsenic, and their removal from aqueous solutions by adsorption. On the surface, one could assume there is not much common with these two elements. Phosphorous ...