A synchronous regulation circuit is provided. According to one embodiment, metrics for deployed resources in a predefined environment is designed. 5% by weight of a cationic cross-linked polymer that is desirable from the polymerization of from 5 to 100 mole percent of cationic vinyl addition monomer, from 0 to 95 mole percent of acrylamide and from 50 to 1000 ppm, preferably 350 to 1000 ppm, more preferably 500 to 1000 ppm of a difunctional vinyl addition monomer cross-linking agent, c) from 0.