A system and method are disclosed for enclosing electronic equipment in a noiseproofed and ventilated enclosure. The outer valve is provided with an outer valve bore within which an inner valve is received the inner valve being engageable with a second seating to control fuel delivery through a second set of one or more nozzle outlets. The license management apparatus includes a management unit and a transfer unit. The windings are positioned around the vapor cell and are configured to create an electromagnet field in the vapor cell when an AC signal is applied to the windings. The top surface is to be compatible with and coated by an oxidation catalyst and having a structure constructed of one or more layers which would allow substantial flow of liquids and gases. An adjustment unit provides a writing current to the cell, and increases the writing current according to the control signal until the comparing signal indicates that the memory cell is in a reset state.