A particle beam irradiation system which can increase an availability factor. The fibre has a middle portion and anchorage ends. To program a selected variable resistance memory element, all of the bitlines are grounded or biased at the same voltage. These adhesives have melting temperatures and crystallization properties that allow their application at temperatures cool enough to prevent curling and premature shrinkage of the shrink label during seaming, and yet produce strong label seams that can withstand the elevated temperatures of a shrink tunnel without sacrificing line speed. Also provided is a suspension of nanoparticles which are formed by the method.