A packet-based, hierarchical communication system, arranged in a spanning tree configuration, is described in which wired and wireless communication networks exhibiting substantially different characteristics are employed in an overall scheme to link portable or mobile computing devices. In certain example embodiments, the anti-migration or barrier layer may include a metal oxide, and functions to prevent element from migrating between the solar management layer and the dielectric layer upon heat treatment of the coated article. This high pulp content composite nonwoven fabric may be used as a heavy duty wiper or as a fluid distribution material, cover material, andor absorbent material in an absorbent personal care product. A digital logic of the switch controller receives signals from the comparators and determines a pulse signal for controlling an on-time and an off time of a switch in a second switching cycle. A polarizing plate having uniform polarization characteristics, and excellent in durability is obtained by the method. The inertial valve opens in response to terrain-induced forces and provides communication of fluid compressed by the piston from the first fluid chamber to the second fluid chamber.