A stress-adjusting method for use in a manufacturing system of a MOS device is provided. An interferometer modulates the intensity of the broadband light source for a range of modulation frequencies. A standard semiconductor inline automation system and process may be used to manufacture the EA packages so that they may be mass produced with improved throughput, yield and quality as compared to the method currently used to manufacture and assemble the known EA used in the traditional TO-can and FOT architectures. On receiving a first data flow request, an arrival time of a next data flow request is predicted based on an analysis of the behavior, and the system determines whether the two data flows can be bundled together and transmitted over a single connection. By adding an organic amine to an eye drop containing a thermally unstable medicament, the degradation of the medicament in the eye drop can be effectively prevented, and therefore the eye drop can be stably stored. Sound is generated in the passenger compartment by the electronic sound enhancement system responsive to the preferred engine order equalization.