Provided are a method and system for achieving enhanced performance in communications between a plurality of emulated networks overlaid onto at least one base network, wherein the communications involve one or more source route bridges. In one embodiment, the hitting face is made from multiple materials. To measure the mass flowrate extracted from the aperture, the hopper is connected to the mechanism by a flexible blade and bears on a table equipped with a weighing cell formed by a weight sensor. The evaluation unit generates the image steadiness correction signal on the basis of the at least one determined part region position. If the N-bit application accesses a memory address which is less than 2M, the system can generate a trap, thereby facilitating the discovery of M-bit memory references in the N-bit application. An integrated detailed billing system capable of pass-through client billing, keyword search functionality, a multi-party content management system, and convenient web-based automated verification services are provided.