The Global SAW Tag [1] is projected to be a large-volume SAW device application. The modulation method and overall tag data structure are reviewed for a family of proposed RFID devices. Current implementations use a basic group structure that encodes 16 information bits using 4 reflectors chosen from 75 reflector slots. Several groups are placed in-line on a single acoustic track to achieve ID ...

In this paper we explore the possibility of intermediate scale physics in the context of superstring models with higher Kac-Moody levels, by focusing on leftright and Pati-Salam symmetries. We find that the left-right scale may lie in the range 10 − 10 GeV which is favored by neutrino physics, while the Pati-Salam scale is at most two or three orders of magnitude below the unification scale MX ...