A linecard architecture for high speed routing of data in a communications device. A preferred process for preparing modified polymeric dispersing additives comprises reacting a hyperbranched polyurethane having from 2 to 100 NCO groups and a molar mass of from 500 to 50,000 gmol with one or more polyether derivatives. By employing the first link and the driving portion, the body of the multi-legged robot is moved to and fro and left and right naturally in accordance with the movement of the legs, in a similar pattern as that generally shown in actual multi-legged animals. The diffusion of volatile substances through the barrier material may be prevented by adding compatible derivatized cyclodextrin and nanosized metal particles to the material used. The \u201ctrie-based\u201d algorithms may advantageously partition the trie such that each second stage partition comprises a substantially contiguous sequence of routing prefixes in a post-order traversal of the routing trie, together with one or more covering prefixes thereof. Particularly, using a signal of received signals other than a 010 signal or a 101 signal, code inversion time is measured.