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CONSIDERABLE ATTENTION HAS BEEN FOCUSED UPON THE POSSIBLE USE OF TOXIC BIOLOGICAL AGENTS IN BOTH SOUTHEAST ASIA AND AFGHANISTAN. SUCH REPORTED INCIDENTS INDICATE A NEED FOR IMPROVING THE UNITED STATES' CAPABILITY OF ACCURATELY DETECTING A VARIETY OF NATURALLY OCCURRING TOXINS. ONE SUCH TOXIN OF CONSIDERABLE INTEREST IS ANATOXIN-A, A SECONDARY METABOLITE OF THE CYANOBACTERIA (BLUE-GREEN ALGAE) ANAB ...

THE SAFE, RELIABLE, AND EFFICIENT OPERATION OF NUCLEAR POWER PLANTS REQUIRES ADVANCED OPERATOR DECISION AIDS AS WELL AS CONTROL AND PROTECTION SYSTEMS. A PREDICTIVE EXPERT SYSTEM FOR PLANNING POWER MANEUVERS WILL BE INVESTIGATED AS ONE SUCH OPERATOR AID. IN THE PHASE I WORK THE FEASIBILITY OF THE SYSTEM WILL BE DEMONSTRATED VIA A ROBUST NEUTRONICS MODEL, USING THE TRANSIENT FEW-GROUP NEUTRON DIFFU ...

THE NOVEL MULTI-DIMENSION RESOLVING ACCELEROMETER IS A UNIQUE INERTIAL MEASURING DEVICE DESIGNED TO PROVIDE CARTESIAN COMPONENTS OF APPLIED ACCELERATION. THE DEVICE OPERATION IS AN INNOVATIVE UTILIZATION OF SEMICONDUCTOR TECHNOLOGY COUPLED WITH STRUCTURAL MECHANICS. THE OBJECTIVES OF THIS PROPOSAL IS TO CONTINUE THE DEVELOPMENT OF THE NOVEL MULTI-DIMENSION RESOLVING ACCELEROMETER, AND TO STUDY THE ...

USE OF ATOMIC LAYER EPITAXY IS BEING INVESTIGATED FOR GROWING SINGLE CRYSTAL ALGAN LAYERS. THE FORMATION OF NITROGEN VACANCIES IS EXPECTEDTO BE SUPPRESSED BY THE UNIQUE ATOMIC LAYER DEPOSITIONS AND THE EXCITATION OF NH3 GAS BY A LASER SOURCE. THIS SHOULD RESULT IN HIGH QUALITY LARGE AREA SINGLE CRYSTAL LAYERS OF ALGAN WHICH COULD BE USED TO MAKE SOLAR BLIND ULTRA-VIOLET (UV) SENSORS. THESE THIN EP ...

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CURRENTLY AVAILABLE AUTHORING SYSTEMS HAVE BEEN PROVEN EFFECTIVE IN PRODUCING COMPUTER-BASED TRAINING LESSONS CONTAINING SEQUENCES OF TEXT AND GRAPHICS SCREENS THROUGH WHICH THE STUDENT IS GUIDED UNTIL MASTERY IS ACHIEVED. IN A PERSONNEL TRAINING SIMULATION, FAR MORE ADVANCED CAPABILITIES ARE REQUIRED, INCLUDING MULTITASKING, COMMUNICATION WITH EXTERNAL DEVICES, HIGH SPEED DATA ANALYSIS AND GRAPHI ...

THE SAFE DESIGN OF DEEP MISSILE BASING STRUCTURES SUBJECTED TO STRESS TRANSIENTS GENERATED BY SURFACE DISTURBANCES SUCH AS NUCLEAR OR CONVENTIONAL EXPLOSIONS IS A VERY IMPORTANT PROBLEM FOR J.S. NATIONAL SECURITY INTEREST. THE PROPAGATION OF SURFACE DISTURBANCES THROUGH INHOMOGENEOUS, JOINTED, FRACTURED, AND LAYERED GEOLOGIC MEDIUM OF THE INFINITE DOMAIN IS A VERY COMPLEX PROBLEM ESPECIALLY NEAR D ...

THE ULTIMATE OBJECTIVE OF THIS PROJECT IS THE PRODUCTION OF A DENGUE VACCINE. THE FOUR DENGUE VIRUSES (SEROTYPES) AS A GROUP ARE BY FAR THE MOST IMPORTANT VIRUSES TRANSMITTED TO MAN BY ARTHROPODS AND IN TERMS OF GLOBAL MORBIDITY ARE RESPONSIBLE FOR SEVERAL HUNDRED THOUSAND TO SEVERAL MILLION CASES ANNUALLY. IN PHASE I RANDOM FRAGMENTS OF THE DENGUE VIRUS 2 (RNA) GENOME WILL BE CLONED INTO A BACTER ...

THIS PROJECT WILL PREPARE FOR EVALUATION A MATERIAL WHICH SHOULD DEMONSTRATE SUPERIOR PERFORMANCE IN ABSORBING AND DISSIPATING EXPLOSION SHOCK ENERGY. THE COMPOSITION PROPOSED AND ITS BASIS FOR PERFORMANCE ARE EXPLAINED. SHOCK WAVE TESTING WILL BE UNDERTAKEN; AND BASED ON THE RESULTS, RECOMMENDATIONS WILL BE MADE FOR FUTURE PROJECT DIRECTION.

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