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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 ...

TII SHALL PROCURE, DESIGN, CONSTRUCT, AND TEST A COMPACT PORTABLE SIMULATOR CAPABLE OF EMULATING NUCLEAR POWER STATION-OPERATOR (NPS-OP) INTERFACES, AND EVALUATE AND TEST VARIOUS INTERFACE DESIGNS. THE SUMULATOR WILL BE DESIGNED FOR OPERATOR TRAINING ON ADVANCED REACTORS AND WILL BE USED IN SIMULATING OPERATORS SCENARIOS AND RECORDING AND DOCUMENTING REAL-TIME INPUT FROM THE OPERATOR. THE SIMULATO ...

THIS RESEARCH STUDIES A NEW PLANAR SOLID OXIDE FUEL CELL (SOFC) GEOMETRY THAT FEATURES RADIAL FLOW OF FUEL AND OXIDANT STREAMS THROUGH PARTICULATE ELECTRODES (THE INTERSCIENCE RADIAL FLOW (IRF) FUEL CELL). THE TWO KEY PHYSICAL CHARACTERISTICS OF IRF DESIGN ARE THE POROUS, PARTICULATE ELECTRODES AND THE RADIAL DESIGN. PARTICULATE ELECTRODES ELIMINATE PROBLEMS CAUSED BY MISMATCHES IN THE THERMAL EXP ...

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20 Development of An Optical Sensor System for Widely Dispersed, Unattended Monitoring of the Air-Sea Exchange of Carbon Dioxide--Yellow Springs Optical Sensor Company, P.L.L., 1725 Brannum Lane, Yellow Springs, OH 45387-1107; Mr. John R. Woodward, Principal Investigator Mr. Leon R. Erdman, Business Official DOE Grant No. DE-FG02-97ER82512 Amount: $74,668 The accumulation of various ¿gr ...

PILOT PLANT WORK IS BEING CARRIED OUT ON THE REDUCTION OF SODIUM SULFITE CONTAINING SOME SODIUM SULFATE INTO SODIUM SULFIDE, A KEY STEP IN THE SOLUBLE SOLUTION PROCESS FOR REMOVAL OF SULFUR OXIDES, NITROGEN OXIDES, AND PARTICULATES FROM THE FLUE GAS OF COAL-FIRED UTILITIES. IN THE FLUE GAS ABSORPTION STEP, A SOLUTION OF SODIUM CARBONATE IS USED TO REACT WITH SULFUR DIOXIDE TO FORM PRIMARILY SODIUM ...

FIELD-PORTABLE INSTRUMENTATION SUITABLE FOR ONSITE METAL ANALYSIS IS NEEDED. SUCH INSTRUMENTATION SHOULD PERMIT (1) ANALYSIS IN REAL TIME, (2) SIMULTANEOUS DETECTION OF VARIOUS METALS, AND (3) DETECTION LEVELS DOWN TO PARTS PER BILLION. IN PHASE I, THE SUITABILITY OF AN ELECTROCHEMICAL MEASUREMENT CONCEPT TO ACHIEVE THESE PERFORMANCE CHARACTERISTICS WILL BE ESTABLISHED. PHASE I CONSISTS OF THE FOL ...

THE RECENT MAJOR ADVANCES IN SURFACE HARDENING OF POLYMERS BY ION IRRADIATION OPENED UP THE OPPORTUNITY FOR REPLACING MANY CURRENT PARTS IN THE AUTOMOTIVE INDUSTRY. THERE ARE MANY GEAR APPLICATIONS WHERE THE USE OF POLYMERS IS DESIRABLE FROM THE STANDPOINT OF NOISE, COST, AND/OR WEIGHT REDUCTION. HOWEVER, POLYMERS TEND NOT TO DO WELL IN WEAR AND FRICTION APPLICATIONS BECAUSE OF THEIR LOW HARDNES ...