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THE SOLAR NEUTRINO PROBLEM IS ONE OF THE LONGEST- STANDING UNRESOLVED PROBLEMS IN THE UNDERSTANDING OF THE ENERGY-PRODUCING PROCESSES IN THE SUN. THE OBSERVED FLUX OF NEUTRINOS IS ABOUT ONE-FOURTH OF THAT PREDICTED BY CAREFUL CALCULATIONS OF SOLAR-FUSION REACTIONS. THE POSSIBILITY OS RESOLVING THIS ISSUE WILL BE STUDIED BY THE USE OF NOVEL NEUTRINO DETECTOR USING INDIUM PHOSPHIDE DETECTORS. IN PHA ...

THE ADVENT OF FIBER REINFORCED COMPOSITES HAS MADE AVAILABLE NEW STRUCTURAL MATERIALS FOR USE IN MILITARY HARDWARE. IN PARTICULAR, ARMOR PANELS MADE FROM FIBERGLASS REINFORCED PLASTICS PROVIDE STRENGTH TO WEIGHT RATIOS SIGNIFICANTLY SUPERIOR TO THOSE MADE FROM METAL PLATE. THESE NEW MATERIALS ARE CRITICAL FOR MAXIMIZING THE PERFORMANCE OF MODER MILITARY ARTICLES SUCH AS HIGH SPEED TANKS AND TROOP ...

THE ADVENT OF GRAPHITE REINFORCED COMPOSITES HAS LED TO SIGNIFICANT ADVANCES IN AIRCRAFT TECHNOLOGY. SUCH COMPOSITES ARE ESSENTIAL TO MODERN FLIGHT TECHNOLOGY BECUASE OF THEIR EXCEPTIONALLY GOOD STRENGTH-TO-WEIGHT RATIOS AND MANY AIRCRAFT AND MISSILE COMPONENTS ARE NOW MADE FROM THESE MATERIALS. AN IMMEDIATE NEED EXISTS, HOWEVER,FOR A RELIABLE TECHNIQUE TO DETERMINE THE FIBER TO RESIN RATIO OF COM ...

RADIOISOTOPE LABELING OF BIOLOGICAL COMPOUNDS IS A POWERFUL TOOL USED IN MANY MEDICAL RESEARCH TECHNIQUES. TRITIUM IS AN ESPECIALLY USEFUL RADIOISOTOPE SINCE IT CAN BE USED TO LABEL MANY BIOLOGICALLY ACTIVE MATERIALS. FOR EXAMPLE, IMMUNOLOGISTS USE TRITIATED THYMIDINE WHICH CAN BE INCORPORATED INTO THE DNA MOLECULES OF GROWING CELLS. THIS PROVIDES AN ACCURATE WAY TO MONITOR CELL GROWTH. THUS TRITI ...

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THE DEVELOPMENT OF COMPUTER-AIDED DESIGN TECHNIQUES FOR AUTOMATED TEST PROGRAM DEVELOPMENT IS PROPOSED. THE APPROACH WILL BE TO VIEW THE TEST PROGRAM DEVELOPMENT PROCESS AS CONSISTING OF EQUIPMENT MODELING, FUNCTIONAL TEST SEQUENCING, TEST PATTERN GENERATION AND SEQUENCING, TEST VERIFICATION, AND AUTOMATIC CODE GENERATION. OF THESE, TEST SEQUENCING AND TEST GENERATION CONSTITUTE THE TWO MOST TIME- ...

ALPHATECH PROPOSES TO DEVELOP INNOVATIVE ALGORITHMS FOR AIRBORNE MULTI-SPECTRAL COUNTERMEASURE MANAGEMENT BUILT UPON OUR PREVIOUSLY DEVELOPED ADVANCED ALGORITHMS FOR ELECTRONIC COUNTERMEASURE (ECM) POWER MANAGEMENT FOR USE AGAINST GROUND-BASE AIR DEFENSE THREATS. THESE ALGORITHMS DETERMINE OPTIMAL COUNTERMEASURE SEQUENCES BY PREDICTING IN REAL-TIME HOW THREATS WILL RESPOND TO COUNTERMEASURES. IN S ...

THE PURPOSE OF THIS RESEARCH IS TO INVESTIGATE THE CARCINO- GENIC AND MUTAGENIC EFFECTS OF FOUR COMPOUNDS, 5-AZACYTI- DINE, HYDROXYUREA, CYTOSINE ARABINOSIDE, AND DEOXYAZACYTI- DINE, IN MICE AND RATS. THESE COMPOUNDS INDUCE THE PRODUCTION OF FETAL HEMOGLOBIN WHEN ADMINISTERED TO EITHER BABOONS OR HUMAN PATIENTS WITH BETA THALASSEMIA OR SICKLE CELL ANEMIA. AS THIS THERAPY MAY BECOME MORE WIDELY USE ...

AMERICAN SCIENCE & ENGINEERING (AS&E) WILL DESIGN AND BUILD A LOW-DOSE, DIGITAL RADIOGRAPHY SYSTEM BASED ON ITS MINIMAL DOSE DIGITAL RADIOGRAPHY SYSTEM (MDDBR). AS&E NOW BUILDS AND SELLS A SINGLE-BEAM FLYING SPOT SYSTEM. THIS HAS PROVENTO BE VERY USEFUL IN PROVIDING DIAGNOSTIC IMAGES AT LOW DOSE(2M ROENTGENS SKIN ENTRANCE EXPOSURE) BUT IS LIMITED BECAUSEOF X-RAY TUBE LOADING FOR SHORT-TERM MULTIPL ...