The present invention provides a method and system for connection verification. The client cache map has a matching entry for each document cached by the client device’s cache. The seal comprises a plate like partition wall which is arranged on the base of the electronics housing and serves the purpose, on the one hand, of physically sealing the electronics housing and, on the other hand, of sealing the gaps in the electronics housing. The controller is responsive to one or more operating parameters of the comminution unit in order to control the quantity of water supplied to the comminution unit to produce a waste pulp having a predetermined physical characteristic. Certain embodiments of such stents also include barbs, fabric covering and radiopaque markers. Closeness may be determined by subtracting or by calculating the dot product of each of the vectors with that of the seed media object.