Improved Magnetostrictive Composites

New standards are emerging for inter-process communication among technical systems under development. Subsystems using the CORBA protocol (IIOP) are sometimes tied to a specific vendor's ORB implementation without regard to portability in a heterogeneousnetwork environment. As technology advances, upgrading is not cost effective.The JINI API, coupled with the Java Naming and Directory Interface (JNDI) API can provide a network architecture with a middleware layer that can relieve clients of many of the housekeeping tasks necessary to maintaining connections between clients andservices. This is of particular interest when developing subsystems for the Virginia Class Submarine. One of the NPES subsystems of particular interest is the NTDPS. In this subsystem, laptops are assigned to particular tasks and may be moved to differentplaces in the submarine. Docking ports are available in specific areas of the ship where it is anticipated that the laptops will be used. A wireless solution would be ideal in situations where no docking port is available. Using JINI in conjunction with aBluetooth, the network can form itself when new hardware is nearby, thus greatly reducing the cost of maintenance and configurationProvides three primary benefits: development of a network infrastructure that provides the framework for extensions that provides inter-subsystem communication and a universal, spontaneous plug-and-play capability; a conceptual network architecture thatprovides wireless connection for clients and services regardless of location; and development of key services necessary in building a loosely coupled network environment including Accept/Deny procedures, Intrusion detection, Performance monitoring, andFail over procedures.