A method for allowing multiple service providers to provide services via a common access network. Each file fetcher is configured with both client-side and server-side components to retrieve and serve out data files. The processes include diluting the aggregated particulate mixture prior to coalescence. A second clamping device is coupled between the second input of the voltage comparator and a second input signal, the second clamping device being coupled to the reference voltage. The sub-wordline driver combines the address decoding signals responsive to a normal wordline enable signal and drives the sub-wordline signal as a wordline responsive to a normal wordline enable signal.