Methods, systems, and devices are disclosed for delivery a fluidic substance using Lorentz forces. The petroleum distillate feedstock containing sulfur is reacted with hydrogen gas in the presence of a hydrotreating catalyst thereby forming an effluent mixture comprising hydrogen sulfide. Each object has a predetermined outline. Via a detection resistor, the bias current will produce a voltage drop to compensate the voltage drop of an output rectifying diode as the output load changes.