The present invention is directed to various systems, methods, and embodiments resulting from the realization that the number of persons who are using a Wi-Fi computer network in a closed environment, e. A polarizer in the path of the illumination beam has a first polarization transmission axis. The optimum is a function of the price of feedstocks, products and intermediate streams as provided by the refinery planning optimization. In another embodiment, the first reactant, the second reactant, and a retarder for slowing the reaction between the two reactants are concurrently pumped to the permeable zone. The APs and MU may be configured to communicate according to the 802.