Award Data

RIGID, LOW DENSITY POLYURETHANE FOAM IS WIDELY USED IN CUSHIONING AND FLOTATION APPLICATIONS. IT DOES POSSESS CERTAIN DISADVANTAGES, INCLUDING COMBUSTABILITY, TOXIC GAS EVOLUTION IN A FIRE AND POOR DIMENSIONAL STABILITY. PHENOLIC FOAMS ARE MORE STABLE, DO NOT SUPPORT COMBUSTION AND LACK THE FUNCTIONAL GROUPS RESPONSIBLE FOR THE GASES, BUT THEY LACK STRENGTH AND RESISTANCE TO ABRASION. WE PROPOSE T ...

TAC PROPOSES TO STUDY THE FEASIBILITY OF DETECTION AND LOCALIZING OIL DRUM SIZE OBJECTS ON/IN THE BOTTOM OF SURF ZONES. THE APPROACH IS TO ANALYZE THE PERFORMANCE PROBABILITIES AND DESIGN FEASIBILITY OF LOW FREQUENCY (20 TO 500 HZ) ACTIVE ELECTROMAGNETIC DESIGNS IN A TOWABLE, SUBMERGED HYDROFOIL CONFIGURATION. DETECTION SYSTEMS WOULD BE SUPPLEMENTED FOR LOCALIZATION BY EITHER NAVIGATIONAL FIX METH ...

THIS PROJECT WILL EVALUATE A NEW TYPE OF ALERTING SYSTEM DISPLAY: THE LIKELIHOOD ALARM DISPLAY (LAD). THE LAD FORMS AN OPTIMAL INTERFACE BETWEEN AN INTELLIGENT OR "EXPERT" COMPUTER MONITORING SUBSYSTEMS AND A HUMAN PILOT. IN A LAD DISPLAY, THE ALERTING SIGNAL PROVIDED TO THE HUMAN OPERATOR CONTAINS INFORMATION ABOUT THE COMPUTED LIKELIHOOD OF THE PROBLEM AS DETERMINED BY THE INTELLIGENT AUTOMATED ...

THIS PROPOSAL IS TO STUDY THE SYNTHETIC METHODS TO INCORPORATE HIGH-SENSITIVITY ELECTROCHEMICALLY ACTIVE FUNCTIONAL GROUPS INTO AMINES, AMINO ACIDS AND PEPTIDES OF BIOLOGICAL ORIGIN. THE PURPOSE OF THIS DERIVATIZATION IS TO PERMIT THE QUANTITATIVE ANALYSIS OF PICOMOLE LEVELS OF THESE COMPOUNDS USING LIQUID CHROMATOGRAPHY COUPLED TO AN ELECTROCHEMICAL SENSOR. PHASE I OF THIS PROPOSAL IS TO STUDY: ( ...

THIS PROPOSAL CONCERNS THE DEVELOPMENT OF A NOVEL IMMUNOASSAY SYSTEM BASED ON THE FABRICATION OF HIGHLY SELECTIVE AMPEROMETRIC SENSORS CAPABLE OF DETECTING FEMTOMOLE QUANTITIES OF MATERIAL. PHASE I OF THIS PROPOSAL WILL INVOLVE THE SYNTHESIS OF A NUMBER OF MODIFIED SURFACES FOR THE AMPEROMETRIC ELECTRODE. A PROTOTYPE SENSOR WILL BE BUILT AND TESTED FOR THE DETECTION OF NICOTINAMIDE ADENINE DINUCLE ...

CARBON-CARBON COMPOSITES ARE USEFUL HIGH TEMPERATURE STRUCTURAL MATERIALS OPPORTUNITIES EXIST FOR THEIR USE IN HOT, OXIDIZING ENVIRONMENTS, BUT PROTECTION SYSTEMS HAVE TO BE DEVELOPED TO PREVENT OXIDATION WHICH POSES A SERIOUS PROBLEM ABOVE 400 DEGREE C. CONVENTIONAL OXIDATION RESISTANT COATING SYSTEMS EMPLOYING THIN LAYERS OF EITHER SIC OR SI N CRACK WHILE UNDERGOING LARGE TEMPERATURE CHANGES DUE ...

PROTECTION OF EXOATMOSPHERIC SYSTEMS AND STRUCTURES FROM NUCLEAR EFFECTS IS REQUIRED. THE MATERIAL CANDIDATE FOR THIS TYPE OF PROTECTION IS A CARBON-CARBON COMPOSITE FOR STRUCTURAL INTEGRITY AND TUNGSTEN CARBIDE COMPONENT FOR NUCLEAR HARDENING. THE CARBON-CARBON COMBINES A HIGH STRENGTH-TO-WEIGHT RATIO IN AN INTEGRAL STRUCTURAL COMPOSITE CAPABLE OF NUCLEAR HARDENING BY THE ADDITION OF TUNGSTEN CAR ...

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