Award Data

IF COAL WATER FUELS (CWF) ARE TO BE USED WITH THE CONVENIENCE AND RELIABILITY OF LIQUID OR GASEOUS FUELS, CHOICES MUST BE MADE IN SLURRY FORMULATION, COAL RANK, DEGREE AND METHOD OF CLEANING, ATOMIZATION TECHNOLOGY, COMBUSTION PARAMETERS, AND SORBENT ADDITIVES. A LABORATORY-SCALE METHOD IS NEEDED FOR TESTING CWF WHERE THE RESULTS CAN BE RELATED TO THE FUEL'S PERFORMANCE IN FULL-SCALE DEVICES. A RE ...

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THIS STUDY WILL ATTEMPT TO DEVELOP A HIGH-RESOLUTION, INFRARED INSTRUMENT TO MONITOR CONCENTRATION LEVELS OF INDIVIDUAL ALKALI MOLECULAR SPECIES IN COMBUSTOR GAS STREAMS. THE FORMATION OF ALKALI SULFATES ON HOT COMBUSTOR SURFACES LEADS TO SEVERE CORROSION AND FOULING, RAISING OPERATING COSTS AND REDUCING EFFICIENCY. A MONITOR OF THE DOMINANT GAS-PHASE ALKALIS WOULD AID DEVELOPMENT OF MEASUREMENTS ...

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POSITRON EMISSION TOMOGRAPHY (PET) IS A NONINVASIVE MEDICAL IMAGING TECHNIQUE THAT PROVIDES A THREE-DIMEN- SIONAL IMAGE OF RADIOPHARMACEUTICALS DISPERSED IN THE BODY. IT IS BECOMING AN IMPORTANT FUNDAMENTAL TOOL FOR BOTH CLINICAL DIAGNOSIS AND MEDICAL RESEARCH. THE HEART OF THIS INSTRUMENT IS A LARGE ARRAY OF NUCLEAR DETECTORS MOSTLY CONSISTING OF SCINTILLATOR CRYSTALS COUPLED TO PHOTOMULTIPLIER T ...

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RECENTLY CONCEIVED RADIATION TRANSPORT ANALYSIS TECHNIQUES WILL BE STUDIED TO ASSESS THEIR USE IN SPACE NUCLEAR POWER SHIELD DESIGN OPTIMIZATION. THE ULTIMATE AIM IS TO DETERMINE OPTIMAL COMPOSITIONS AND CONFIGURATIONS OF SHIELD COMPONENTS FOR THE PRO- TECTION OF SPACE SYSTEMS AGAINST MIXED RADIATION FIELDS FROM INTERNAL AND EXTERNAL SOURCES. PARTICULAR ATTENTION WILL BE PAID TO USING COMPOSITE AN ...

THE MAJOR LIMITING RELIABILITY COMPONENTS OF CRYOGENIC SYSTEMS HAVE ALWAYS BEEN SEALS. BESIDES CONTRIBUTING TO GAS CONTAMINATION AND DEBRIS PARTICLE ACCUMLATION, SEALS HAVE PHYSICALLY FAILED; AS A RESULT, SEALS HAVE BEEN RESPONSIBLE FOR THE MAJORITY OF FAILURES OCCURING IN CRYOGENIC LIQUEFACTION AND REFRIGERATION SYSTEMS. A POTENTIALLY VIABLE SOLUTION IS THE DEVELOPMENT OF LONG- LIFE CRYOGENIC SEA ...

THIS PROPOSAL ADDRESSES THE POSSIBILITY OF UTILIZING COMMERCIALLY-AVAILABLE LETTER-QUALITY OR DOT-MATRIX PRINTERSFOR BRAILLE OUTPUT WHEN USED WITH A MICROCOMPUTER. THE BRAILLE-OUTPUT ENVISIONED WOULD BE GRADE I BRABRAILLE SINCE GRADE II WOULD NORMALLY REQUIRE TRANSCRIPTION BY AN EX AN EXPERIENCED BRAILLIST. THIS CONCEPT IS INTENDED TO PROVIDE AN INEXPENSIVE, AUTOMATED, AND RAPID SYSTEM OF BRAILLE- ...

THIS PROJECT WILL EXPLORE NEW METHODS OF FABRICATING THE RECENTLY REPORTED CONDUCTIVE POLYMER, POLY (ISOTHIANAPHTHENE) (PITN). WHEN ELECTROCHEMICALLY FORMED FILMS OF PITN ARE DOPED, THEY HAVE A HIGH CONDUCTIVITY AND ARE HIGHLY TRANSPARENT IN THE VISIBLE PORTION OF THE SPECTRUM. BECAUSE THE POLYMER FILM CAN BE PRODUCED AT LOW TEMPERATURES, IT OFFERS AN ALTER- NATIVE TO THE PRESENTLY USED WIDE-BANDG ...