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THIS PROJECT WILL DEFINE A COMPUTER SIMULATION CAPABILITY THAT CAN SYNTHESIZE CLOUD CLUTTER AND SEA RADIANCE SCENES MEASURED BY SHIPBORNE IRST SENSORS. THE CAPABILITY WILL BE AN EXPANSION OF ARI'S EXISTING AERIE (AERODYNE INFRARED EARTH) IR BACKGROUND RADIANCE SIMULATION CODE, DEVELOPED TO SYNTHESIZE INFRARED SCENE RADIANCES MEASURED BY IMAGING SENSORS. DETAILS OF THE PHYSICAL PROPERTIES OF THE CL ...

The use and applications of radiological sources, for power, medical, and defense applications, continuously increases with time. Illicit nuclear materials represent a threat for the safety of the American citizens and the detection and interdiction of a nuclear weapon is a national problem that has not been yet solved. This represents an enormous challenge to current detection methods and monitor ...

THE ACTIVE SONARS TYPICALLY USED ON SUBMARINES OPERATE AT FREQUENCIES HIGH ENOUGH TO BE DIFFICULT IF NOT PRESENTLY IMPOSSIBLE TO MODEL ACCURATELY WITH FINITE ELEMENT ANALYSIS. LIKEWISE BEAM AND CYLINDER MODELS PROVIDE INADEQUATE REPRESENTATIONS OF THE HIGH FREQUENCY BEHAVIOR OF PLATE AND FRAME VIBRATIONS. THE APPLICATION OF THE AARC STATISTICAL ENERGY ANALYSIS PROGRAM WHICH INCLUDES BENDING, LONGI ...

THE OBJECTIVE OF THE PROPOSED RESEARCH IS TO LIMIT VOLTAGE DELAY, ANODE CORROSION DURING INTERMITTENT USAGE AND TO INCREASE THE CURRENT CAPABILITY AND CAPACITY OF LI/SOCL(2) CELLS THROUGH THE USE OF NEW ELECTROLYTE SALTS. THE PRINCIPLES USED WILL BE THOSE WHICH HAVE SUCCEEDED IN THE PAST, NAMELY, BY LIMITING THE CONCENTRATION OF THE ELECTROLYTE SALT AND BY USING THE LITHIUM SALTS OF LARGE ANIONS W ...

THE INTENT OF THE PRESENT PROPOSAL IS TO DEMONSTRATE THAT HIGH OPTICAL QUALITY BATIO3 SINGLE CRYSTALS CAN BE SECURED BY ADAPTING THE HEAT EXCHANGER METHOD (HEM[TM]) OF CRYSTAL GROWTH TO HIGH TEMPERATURE SOLUTION GROWTH. THE PHASE I CRYSTALLIZATIONS WILL BE CONDUCTED FROM A BARIUM BORATE SOLUTION (BAB2O4). BARIUM TITANATE IS KNOWN TO CRYSTALLIZE FROM THIS SOLUTION. THE MINIMUM TEMPERATURE AVAILABLE ...

ON THE BASIS OF PERFORMANCE, SAPPHIRE IS ONE OF THE BEST MATERIALS FOR MISSILE DOME APPLICATIONS. HOWEVER, BOULE UTILIZATION AND HIGH FABRICATION COSTS MAKE IT AN EXPENSIVE CHOICE, AND, THEREFORE, NO U.S. MISSILE PRODUCTION PROGRAMS ARE USING SAPPHIRE DOMES. IT IS DESIRABLE TO GROW NEAR NET-SHAPE SAPPHIRE DOMES FOR MISSILE APPLICATIONS. IT HAS BEEN DEMONSTRATED THAT WHEN MOLYBDENUM SHEETS ARE PLAC ...

THERE IS A UNIVERSAL NEED WITHIN THE DEFENSE-RELATED OPERATIONS FOR CHEMICAL SENSING. IN MOST CASES, THE FAVORABLE CONFIGURATION OF A SENSOR WOULD BE ONE IN WHICH THE DETECTOR (I.E., PROBE) WOULD OPERATE IN SITU AND PRODUCE INFORMATION ON CHEMICAL COMPOSITION IN REAL TIME WITH A HIGH LEVEL OF SENSITIVITY (PPB OR LESS). IT IS THE GOAL OF THE PROPOSED WORK TO DEVELOP A "UNIVERSAL" REMOTE SENSOR FOR ...

COMPOSITE LAMINATES MADE FROM CONVENTIONAL GRAPHITE-EPOXY ARE PRONE TO DELAMINATION DUE TO IMPACT OR EDGE EFFECTS. SOME MEANS OF IMPROVING COMPRESSIVE STRENGTH AFTER IMPACT IS DESIRED. STITCHING IS ONE OPTION, BUT CAUSES DAMAGE TO IN-PLANE PROPERTIES AND REQUIRES ACCESS TO BOTH SIDES OF THE LAYUP. THE PROPOSED TECHNIQUE UTILIZES SHORT BORON FIBERS ORIENTED IN THE Z (OR THICKNESS) DIRECTION TO REDU ...

OPTICAL PATTERN RECOGNISTION BY MATCHED FILTERING IS IMPORTANT FOR MILITARY TARGET IDENTIFICATION AND INDUSTRIAL ROBOT VISION. LOW COST SPATIAL LIGHT MODULATORS HAVE BROUGHT THE TECHNIQUE CLOSER TO PRACTICAL USE BUT A BOTTLENECK REMAINS IN METHODS TO COMPUTER SYNTHESIZE HIGH QUALITY FOURIER PLANE MATCHED FILTERS EFFICIENTLY AND CHEAPLY. RECENT RESEARCH HAS DEMONSTRATED THAT THE BINARY PHASE-ONLY F ...

THE DEVELOPMENT OF A HIGH SENSITIVITY POLARIMETRIC FIBER OPTIC MAGNETOMETER CAPABLE OF DETECTING LOW-FREQUENCY MAGNETIC FIELDS OF 10 (-12) TESLA/DIV BY HZ IS PROPOSED. THE PHASE I RESEARCH EFFORT IS PRIMARY DIRECTED TOWARD THE DEVELOPMENT OF A FIBER OPTIC MAGNETOELASTIC TRANSDUCER, OF SUFFICIENT SENSITIVITY, WHICH CONVERTS THE SIGNAL MAGNETIC FIELD TO A STRAIN AND TRANSFERS THE STRAIN TO THE CORE ...