Award Data

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HIGH POWER TRANSIT-TIME AMPLIFIERS ARE A NEW CLASS OF RF SOURCE THAT CONVERTS THE KINETIC ENERGY OF AN ELECTRON BEAM INTO RF RADIATION IN A VERY EFFICIENT WAY. WHEN THE BEAM CROSSES THE CAVITY OF PROPER DIMENSIONS, IT WILL INTERACT WITH A SINGLE CAVITY MODE THEREBY RADIATING COHERENTLY AT THE MODE'S FREQUENCY. MODE GROWTH CONTINUES UNABATED UNTIL THE RF FIELDS ARE LARGE ENOUGH TO MODIFY THE BEAM O ...

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A MOLTEN SALT PROCESS IS DESCRIBED FOR SEPARATING THE COMPONENTS OF THE ALLOY OF ENRICHED URANIUM AND IRON WHICH IS THE PRODUCT OF THE ATOMIC VAPOR LASER ISOTOPE SEPARATION (AVLIS) PROCESS TO ENRICH THE (235)U CONTENT OF THE PRENT METAL. A SIMPLE SEPARATION WOULD DISSOLVE THE ENRICHED URANIUM HEXAFLUORIDE WHICH WOULD BE RECOVERED AND PURIFIED BY VAPORIZATION FROM THE MOLTEN SALT. VAPORIZED AND CON ...

40837 November 13, 1996 TomoSeis, Inc. Crosswell Seismic Imaging holds great promise for imaging the region between existing oil wells to incrementally increase the recovery of the 368 billion barrels of oil still in the ground (of the 500 billion barrels of original oil in place in the U.S.). To make crosswell data acquisition cost effective, surveys mu ...

A NEW TECHNIQUE, PULSED ELECTRON BEAM (PEB) JOINING, WILL BE APPLIED TO THE PROBLEM OF JOINING, LOW-LOSS CERAMIC MATERIALS USED FOR WINDOWS IN HIGH FREQUENCY MICROWAVE DEVICES TO THE METAL VACUUM ENVELOPE OF THE MICROWAVE DEVICE. THE PEB TECHNIQUE ALLOWS SELECTIVE HEATING OF THE SPECIMEN TO BE JOINED THROUGH PREFERENTIAL ENERGY DEPOSITION THAT IS CONTROLLED BY A COMBINATION OF THE ELECTRON BEAM P ...

DURING THE REFUELING OPERATIONS AT A NUCLEAR POWER PLANT, IT IS NECESSARY TO FLOOD LARGE CAVITIES ABOVE THE REACTOR PRESSURE VESSEL WITH WATER TO PROVIDE RADIATION SHIELDING. THE SPENT FUEL IS TRANSPORTED THROUGH THESE CAVITIES TO A TEMPORARY STORAGE POOL LOCATED NEAR THE REACTOR. OTHER CONTAMINATED INTERNAL REACTOR COMPONENTS ARE ALSO STORED WITHIN THESE CAVITIES DURING REFUELING. ONCE THE REFUEL ...

RELIABLE INTRUSION DETECTION MAY BE ACHIEVED BY COMBINING GENERALIZED POTENTIAL FUNCTION (GPF) NEURAL NET CONSTRUCTION AND MULTIPLE SENSOR DATA FUSION. TRADITIONALLY, RELIABLE INTRUSION DETECTION CAN BE DIFFICULT BECAUSE NOISE LEVELS CHANGE WITH TIME AND LOCATION, AND AN INTRUSION MAY PRODUCE A WIDE RANGE OF SIGNALS OR VARIATIONS OVER THE DIFFERENT TYPES OF SENSORS. ACCOMMODATING THESE VARIATION ...

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GAS TRANSMISSION PIPELINES REQUIRE NATURAL GAS DELIVERED TO THEM TO MEET A HYDROCARBON (HC) DEWPOINT SPECIFICATION IN ORDER THAT THE HC LIQUIDS ARE NOT DROPPED OUT IN THE LINE DURING TRANSMISSION. SIMILAR SPECIFICATIONS ARE IMPOSED BY PLANT OPERATORS ON THE FUEL GAS THAT IS CONSUMED BY THEIR MACHINERY. A MARKET EXISTS FOR AN ECONOMICAL AMMONIA (NH3) ABSORPTION UNIT TO REPLACE COMPRESSION UNITS U ...