Substantially anhydrous electropolishing electrolyte solutions. A method of generating an emulated network node includes the steps of generating an emulation script using a network node emulation language and operating a computer device according to the emulation script in order to transmit and receive data packets in the computer device. The difference is passed through a PI controller and a phase compensator, which have the same control structures as those of exhaust VCT phaser control, to form a control signal.