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TRADITIONALLY, SUPE2RCONDUCTING CAVITIES FOR LARGE ELECTRON POSITION COLLIDERS ARE FABRICATED FROM HIGH PURITY NIOBIUM (NB) SHEETS USING LATHE SPINNING AND WELDING. THESE CAVITIES SUFFER FROM THE PROBLEM OF THERMOMAGNETIC BREAKDOWN RESULTING FROM THE RELATIVELY POOR THERMAL CONDUCTIVITY OF NB AT LIQUID HELIUM TEMPERATURES. A MORE ELEGANT AND LOW COST SOLUTION TO THE BREAKDOWN PROBLEMS IS THE USE ...

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68 Development of Long-length Fabrication Technology for High Tc Superconductors Operating in High Magnetic Fields at 77K--UES, Inc., 4401 Dayton-Xenia Road, Dayton, OH 45432-1894; (937) 426-6900 Dr. Rama Nekkanti, Principal Investigator Mr. Francis F. Williams, Jr., Business Official DOE Grant No. DE-FG02-97ER82503 Amount: $74,999 A tremendous amount of energy--several percent of all elect ...

AN EXISTING SYSTEM HAS DEMONSTRATED, IN QUIET CONDITIONS, VERY RELIABLE DETECTION OF HUMANS HIDDEN IN VEHICLES. SEISMIC VIBRATIONS ARE THE MAJOR, UNAVOIDABLE LIMITATIONS. MEASUREMENT OF THE SEISMIC VIBRATIONS AND COHERENT ANALYSES WILL BE UTILIZED TO COMPUTE AND SUBTRACT THE EFFECT OF THE SEISMIC INTERFERENCE ON THE VEHICLE MOTION. THE PHASE I EFFORT WILL IMPROVE THE RELIABILITY, INCREASE THE S ...

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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16 Fiber Optic for the Detection of Co-Contaminant Compounds--F&S, Inc., P.O. Box 11704, Blacksburg, VA 24062-1704; (540) 953-4274 Mr. Mark E. Jones, Principal Investigator Ms. Garnett S. Linkous, Business Official DOE Grant No. DE-FG02-97ER82371 Amount: $74,994 Innovative technologies to advance the measurement of biological and physicochemical properties of natural systems are necessary in ...

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 ...

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