Abstract: A hybrid power system for an unmanned aerial system (UAS) having a liquid fuel engine and a solid oxide fuel cell coupled to the exhaust of the engine for generating electricity that is used by the electric motors of the UAS to create lift and control flight. A conventional remote control (r/c) liquid fuel engine may be used generate exhaust gases including hydrogen and carbon monoxide that are used by a SOFC coupled to the exhaust of the r/c engine to generate electricity. The electric motors of the UAS may thus be powered by the electricity generated by the SOFC.

Abstract: A testing apparatus for evaluating a medical implant for electric potential oscillations that lead to corrosion. The testing apparatus uses a uniaxial load device having a mounting base for accepting a medical implant and orienting the implant along a predetermined axis, a support plate positioned under the uniaxial load device and moveable to apply a force to the implant, a load cell positioned above the mounting plate to measure the force applied to the implant, and a set of differential variable reluctance transducers positioned to measure motion of the implant. A chamber encloses the uniaxial load device so that the implant can be submerged in a fluid replicating human synovial fluid. A faraday cage surrounds the chamber for isolation from environmental electromagnetic radiation. An array of near field antenna are positioned circumferentially around the chamber and driven by a multi-frequency generator.

Abstract: A dampening device that can be coupled to a medical implant to eliminate harmful electrical oscillations. The device includes circuity that detects harmful electrical oscillations in the implant. The device also includes circuity that generates cancelling electrical signals that counter the detected electrical oscillations. Alternatively, in a medical implant having a taper junction such as a standard hip implant, resistance welding of the taper junction just prior to surgical implanting may be performed after the appropriately dimensioned components are selected to eliminate a metal on metal interface where corrosion is most likely to occur.

Abstract: A hybrid power system for an unmanned aerial system (UAS) having a liquid fuel engine and a solid oxide fuel cell coupled to the exhaust of the engine for generating electricity that is used by the electric motors of the UAS to create lift and control flight. A conventional remote control (r/c) liquid fuel engine may be used generate exhaust gases including hydrogen and carbon monoxide that are used by a SOFC coupled to the exhaust of the r/c engine to generate electricity. The electric motors of the UAS may thus be powered by the electricity generated by the SOFC.

Abstract: A dual chamber solid oxide fuel cell integrated into the exhaust stream of an internal combustion engine, in which engine exhaust gases are routed to the anode of a tubular solid oxide fuel cell (SOFC) and heated secondary air is supplied to the cathode of the SOFC. The secondary air supply is heated using the existing engine temperature and exhaust gas temperature through a heat exchanger formed by a modified cylinder head and exhaust manifold. The dual chamber solid oxide fuel provides the necessary hydrocarbon and carbon monoxide scrubbing to achieve mandatory catalytic conversion for vehicle operation. In addition, the dual chamber solid oxide fuel cell is capable of generating sufficient electrical power for the vehicle. Omission of conventional catalytic convertors and alternators allows for improved efficiency and fuel economy of the internal combustion engine.

Abstract: A dual chamber solid oxide fuel cell integrated into the exhaust stream of an internal combustion engine, in which engine exhaust gases are routed to the anode of a tubular solid oxide fuel cell (SOFC) and heated secondary air is supplied to the cathode of the SOFC. The secondary air supply is heated using the existing engine temperature and exhaust gas temperature through a heat exchanger formed by a modified cylinder head and exhaust manifold. The dual chamber solid oxide fuel provides the necessary hydrocarbon and carbon monoxide scrubbing to achieve mandatory catalytic conversion for vehicle operation. In addition, the dual chamber solid oxide fuel cell is capable of generating sufficient electrical power for the vehicle. Omission of conventional catalytic convertors and alternators allows for improved efficiency and fuel economy of the internal combustion engine.

Abstract: The principles of the present invention provide for categorizing electronic messages based on trust between electronic messaging entities. Messaging servers maintain trust lists indicating levels of trust between electronic messaging entities. Trust lists can be generated from existing trust information, such as, for example, address book entries. Messaging servers also maintain activity stores that indicate messaging activity between messaging entities. Based on information in a trust list and, when appropriate, information in an activity store, a messaging server can categorize an accessed electronic message, such as, for example, as unwanted and/or unsolicited. Messaging servers can securely exchange trust list information to increase the possibility of identifying a level of trust between messaging entities, even between messaging entities that have not previously exchanged electronic messages.

Abstract: The principles of the present invention provide for categorizing electronic messages based on trust between electronic messaging entities. Messaging servers maintain trust lists indicating levels of trust between electronic messaging entities. Trust lists can be generated from existing trust information, such as, for example, address book entries. Messaging servers also maintain activity stores that indicate messaging activity between messaging entities. Based on information in a trust list and, when appropriate, information in an activity store, a messaging server can categorize an accessed electronic message, such as, for example, as unwanted and/or unsolicited. Messaging servers can securely exchange trust list information to increase the possibility of identifying a level of trust between messaging entities, even between messaging entities that have not previously exchanged electronic messages.

Abstract: The principles of the present invention provide for categorizing electronic messages based on trust between electronic messaging entities. Messaging servers maintain trust lists indicating levels of trust between electronic messaging entities. Trust lists can be generated from existing trust information, such as, for example, address book entries. Messaging servers also maintain activity stores that indicate messaging activity between messaging entities. Based on information in a trust list and, when appropriate, information in an activity store, a messaging server can categorize an accessed electronic message, such as, for example, as unwanted and/or unsolicited. Messaging servers can securely exchange trust list information to increase the possibility of identifying a level of trust between messaging entities, even between messaging entities that have not previously exchanged electronic messages.