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ELECTRO-DEPOSITION OF SILICON FILMS FROM LIQUID-METAL SOLUTIONS WILL BE INVESTIGATED. THE OBJECTIVE IS TO DEVELOP A LOW-COST PROCESS FOR THE PRODUCTION OF HIGH-EFFICIENCY THIN-FILM PHOTOVOLTAIC DEVICES. SPECIFICALLY, CURRENT-CONTROLLED GROWTH OF A SILICON FILM ON A SUBSTRATE IS ACCOMPLISHED USING A LIQUID-METAL SOLUTION, SUCH AS TIN, AND A SILICON SOURCE ELECTRODE. THE QUALITY OF SILICON GROWN FRO ...

POLYMERIC MEMBRANES HAVE THE POTENTIAL TO PERFORM ENERGY-EFFICIENT SEPARATIONS IN APPLICATIONS IN A GAS- AND VAPOR-SEPARATIONS MARKET THAT TOTALS AT LEAST $750 MILLION. HOWEVER, THE CURRENT SALES OF MEMBRANE SYSTEMS FOR THESE APPLICATIONS IS ONLY A FEW TENS OF MILLIONS OF DOLLARS--PRIMARILY BECAUSE CURRENTLY AVAILABLE MEMBRANES CANNOT WITHSTAND EXPOSURE TO THE HYDROCARBONS AND SOLVENTS OFTEN PRESE ...

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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 ...

MRC PROPOSES TO DEVELOP A SAFETY PERFORMANCE INDICATOR (PI) OF THE ELECTROMAGNETIC (EM) PROTECTION STATUS OF A NUCLEAR POWER PLANT (NPP). WE BELIEVE THAT SUCH A PI IS NEEDED BECAUSE: (1) EM ENVIRONMENTAL POLLUTION IS ON THE INCREASE,(2) ADDITIONAL EM THREATS MUST BE EVALUATED, AND (3) DISRUPTION OF NPP OPERATIONS BY EM EFFECTS CAN AND MUST BE AVOIDED. PREVIOUS STUDIES HAVE ADDRESSED THE ISSUE OF E ...

THE OBJECTIVE OF OUR PROJECT IS TO DEVELOP NEW MEANS OF PRODUCING SHORT LIVED RADIOISOTOPES FOR POSITRON EMISSION TOMOGRAPHY (PET). THIS MEDICAL DIAGNOSTIC TECHNIQUE IS CAPABLE OF DISCERNING AND IMAGING MEDICALLY INTERESTING PHENOMENA, SUCH AS THE ACTIVITY OF VARIOUS PARTS OF THE BRAIN, OXYGEN FLOW IN THE BODY, AND OTHER QUANTITIES WHICH ARE IMPOSSIBLE TO DETERMINE BY ANY OTHER DIAGNOSTIC TECHNIQU ...

COAL MINES IN THE U.S. EMIT HUNDREDS OF MILLIONS OF CUBIC FEET OF NATURAL GAS INTO THE ATMOSPHERE DAILY. THESE SOURCES OF NATURAL GAS TYPICALLY ARE EITHER TOO DILUTE OR TOO FAR FROM EXISTING GAS PIPELINES TO BE OF COMMERCIAL VALUE. THIS PROJECT SEEKS TO DEVELOP A SYSTEMS APPROACH TO USING THESE WASTE GAS STREAMS TO FUEL ONSITE POWER GENERATION FACILITIES. THE RESEARCH FOCUSES ON DEFINING THEQUANTI ...

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SORPTION-TYPE HEAT ACTIVATED HEAT PUMPS USING COMPLEX COMPOUNDS AS THE SORBENT MEDIA ARE A VERY PROMISING DEVELOPMENT. THIS PROJECT ADVANCES AN INNOVATIVE STAGING TECHNIQUE THAT GREATLY INCREASES THE COEFFICIENT OF PERFORMANCE (COP) ACHIEVABLE WITH COMPLEX COMPOUND SORPTION CYCLES. THIS STAGING METHOD IS THE FIRST CONCEPT IN WHICH MORE THAN THREE EFFECTS ARE PRACTICAL. INCREASES IN HARDWARE REQUIR ...