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FLUID DYNAMICS HAS PLAYED MAJOR ROLES IN THE DEVELOPMENT OF ALL HIGH POWER CHEMICAL LSERS; E.G., EFFICIENT HF/DF CW CHEMICAL LASERS WOULD NOT BE FEASIBILE WITHOUT THE COUPLING OF SUPERSONIC EXPANSION, FAST DIFFUSION, AND HEAT RELEASE COMPENSATION TECHNIQUES WITH LASER CHEMISTRY PROCESSES. BECAUSE OF THE GENERAL ENERGETIC SIMILARITIES BETWEEN VIBRATIONAL TRANSITION AND ELECTRONIC TRANSITION CHEMICA ...

THERE IS A NATIONAL NEED FOR ROBOTIC MANIPULATORS HAVING GREATER DEXTERITY AND FASTER MECHANICAL AND NUMERICAL SPEED AND ACCURACY THEN THOSE PRESENTLY IN EXISTENCE. KINEMATICALLY REDUNDANT MANIPULATORS TYPICALLY INCREASE DEXTERITY AT THE EXPENSE OF COMPUTATIONAL EFFICIENCY DUE TO THE NEED FOR EXTENSIVE NUMERICAL OPTIMIZATION. THE CRITICAL NEED FOR A KINEMATICALLY REDUNDANT MANIPULATOR AMENABLE TO ...

THE REQUIREMENTS NECESSARY TO DESIGN FUTURE HIGH PERFORMANCE AVIONICS SYSTEM INCLUDE BOTH HIGH DENSITY PACKAGING AND NEW MATERIALS ALLOWING AMONG OTHERS FOR SMART SKINS TO BE SUBSTITUTED FOR PREVIOUSLY CONVENTIONAL CIRCUIT BOARDS. HELMETS AND AIRCRAFT FUSELAGE UTILIZING SUCH APPROACHES WOULD BE INVESTIGATED IN ORDER TO ENABLE THE PILOT TO CONTROL HIS ABILITY TO ACT IN THE MANY WAYS NECESSARY WITHO ...

THE COPPER/EPOXY COMPOSITE MATERIAL IS ANTICIPATED TO BE A LIMITED FACTOR IN ACHIEVING THE DESIRED PERFORMANCE OF SUPERCONDUCTING MAGNETS IN FUSION ENERGY SYSTEMS. THIS RESULTS FROM THE LOW RADIATION HARDNESS OF EPOXY RESINS, THE DEGRADATION IN MECHANICAL PROPERTIES AS A RESULT OF NEUTRON AND GAMMA RAY RADIATION, AND CERTAIN CRITICAL DEFICIENCIES IN MECHANICAL PROPERTIES IN GENERAL. IMPROVEMENTS I ...

PLASMA TREATMENT OF POLYARAMID FILAMENTS WITH AMINES TO INDUCE SURFACE CHEMICAL MODIFICATION, HAS CREATED IMPROVED PERFORMANCE KEVLAR/ EPOXY COMPOSITES. COVALENT BONDS ARE ESTABLISHED BETWEEN THE TWO CONSTITUENTS WHEN PLASMA TREATMENT ABLATES THE POLYARAMID OXIDIZED HYDROCARBON SURFACE LAYER AND DEPOSITES APPROPRIATE REACTIVE GROUPS ON THE FILAMENT SURFACE. PROCESS OPTIMIZATION IS REQUIRED TO SUPP ...

THE RESPONSE OF A HARD MOBILE LAUNCHER (HML) IN A NUCLEAR AIRBLAST ENVIRONMENT IS STRONGLY DEPENDENT ON THE DRAG LOADS PRODUCED BY THE TWO PHASE FLUID-PARTICLE GUST BEHIND THE BLAST WAVE. THE OBJECTIVE OF THIS PROPOSED RESEARCH IS TO DEMONSTRATE THE FEASIBILITY OF CONDUCTING CREDIBLE AERO/DUST LOAD EXPERIMENTS IN A WIND TUNNEL TO SIMULATE THIS DRAG PHASE LOADING DURING A BLAST WAVE ENCOUNTER. THE ...

A METHOD OF DEMONSTRATING COMPUTER TOMOGRAPHY (CT) AS A QUANTITATIVE NONDESTRUCTIVE EVALUATION TOOL FOR LOW TEMPERATURE COMPOSITES IN PROPOSED. THE FEASIBILITY OF CT APPLIED TO FLAT LAMINATE PLATE AND FILAMENT WOUND CYLINDRICAL SPECIMENS FABRICATED FROM GLASS FIBER/EPOXY AND GRAPHITE FIBER/EPOXY WILL BE INVESTIGATED. THE SPECIFIC DIFFERENCES BETWEEN INDUSTRIAL AND MEDICAL SCANNERS WILL BE EXPLORED ...

A METHOD OF DEMONSTRATING COMPUTED TOMOGRAPHY (CT) TEAMED WITH SOFTWARE IMAGE PROCESSING METHODS AS A QUANTITATIVE MEANS OF EVALUATING BONE STRUCTURE, DENSITY AND GEOMETRY OF THE HUMAN MUSCULOSKELETAL SYSTEM IS PROPOSED. THE FEASIBILITY OF CT TECHNIQUES APPLIED TO OSTEOPOROSIS FEMUR SPECIMENS IN ORDER TO EVALUATE DISEASE EXTENT AND SEVERITY WILL BE INVESTIGATED. PHYSICAL AND MECHANICAL PROPERTY TE ...