Three to four days if you stuck with a pan, he reckoned, but with a portable sluice box you could process the same amount of gravel and material in a single day.

The collaboration also aims to facilitate the decision process of the EU states in their attempt to simplify the introduction of a single pan-European patent.

This article follows up the change of lamella structure in PAN fiber spinning, preoxidation and carbonization process using electron microscope in order to find the evolution of sheet structure.