Award Data

INNOVATIVE TECHNIQUES ARE PROPOSED FOR INVESTIGATION IN A PHASE I EFFORT TO DETERMINE PASSIVE RF SURVEILLANCE AND TARGETING SENSORS AND ASSOCAITED METHODOLOGY FOR PERFORMING RAPID AND ACCURAGE MEASUREMENTS OF RANGE/LOCATION OF THREAT RF EMITTERS. THE ESSENTIAL PHYSICAL CONSTRAINTS TO BE OBSERVED ARE SENSOR COMPATIBILITY WITH, AND PORTABILITY OF THE ASSOCIATED RANGE DETERMINATION/PROCESSING EQUIPME ...

The use of metallized glass fibers as dipoles to reflect and confuse threat radars is a long proven military technology. The simplicity of chaff and the expected long term use of weapon systems which can be defeated by chaff guarantee its utility for many years to come. Advanced Technology Materials (ATM), Inc. has already developed a process for fiber metallization which is suitable for Productio ...

HALON 1301 (CF3BR) IS CURRENTLY IN WIDE SPREAD USE ON NAVAL VESSELSAS AN EFFECTIVE AND NON-TOXIC ACTIVE AGENT IN FIRE SUPPRESSION SYSTEMS. UNFORTUNATELY, FUTURE MANUFACTURE AND USE OF CF3BR MAY BE SEVERELY RESTRICTED DUE TO ITS ROLE AS A POTENT AGENT IN STRATOSPHERIC OZONE DEPLETION CHEMISTRY. ALTERNATIVE FIRE SUPPRESSION CHEMICALS NEED TOBE IDENTIFIED AND ASSESSED TO REPLACE HALON 1301 IN NAVAL S ...

THIS PROPOSAL WILL DEMONSTRATE (IN 2" TO 4" SIZE), A NOISE REDUCING TRIM THAT CAN BE UTOLIZED IN ROTARY CONTROL/ON-OFF BALL VALVES. THIS VALVE TRIM ADDRESSES NOISE AT THE SOURCE. THE BASIC DESIGN HAS A VARIABLE IMPEDENCE TRIM TO CAUSE A HIGH IMPEDENCE AT LOW ANGLES OF OPENING AND LOW IMPEDENCE (VERY LITTLE FLOW RESTRICTION) AT LARGE OPENING ANGLES. IT IS AN IDEAL VALVE FOR PRESSURIZATION/DE-PRESSU ...

WE PROPOSE TO DEVELOP AN ANTI-REFLECTION (AR) COATING FOR DIAMOND FILMS OPTIMIZED TO ENHANCE THE TRANSMISSION IN THE 8 TO 12 MICRON REGION OF THE SPECTRUM. THE METAL-OXIDE MATERIALS TO BE EVALUATED HAVE GOOD OPTICAL TRANSMISSION IN THIS SPECTRAL REGION AND REFRACTIVE INDICES NEAR THE OPTIMUM VALUE OF 1.55 FOR A DIAMOND AR COATING. SINCE A SECONDARY PURPOSE OF THE COATING IS TO PROTECT THE DIAMOND ...

DUE TO THE FORTHCOMING BAN ON ALL OZONE DEPLETING REFRIGERANTS, THENAVY NEEDS NEW REFRIGERATION TECHNOLOGIES TO REPLACE THOSE USING SUCH CHEMICALS. THE PROPOSED SYSTEM USES SOME OF THE INHERENT DESIGN ADVANTAGES OF A SCREW COMPRESSOR TO ADAPT IT TO A VAPOR COMPRESSION REFRIGERATION SYSTEM USING REFRIGERANT HFC-134A. HFC-134A HAS NO OZONE DEPLETION POTENTIAL. THE USE OF SCREW COMPRESSORS CAN OVERCO ...

DETECTION, LOCALIZATION, AND CLASSIFICATION OF SUBMARINES IN ASW OPERATIONS CAN BE ACCOMPLISHED THROUGH THE USE OF AIR-DROPPED SONOBUOYS. ACOUSTIC SIGNALS SENSED BY SONOBUOYS ARE TELEMETERED BACK VIA AN RF LINK TO AN OVERHEAD AIRCRAFT FOR ASSOCIATED SIGNAL PROCESSING. HOWEVER, THE TELEMETRY PROCESS IS SUBJECT TO RELATIVELY UNSOPHISTICATED RF JAMMING WHICH CAN RENDER THE OVERALL SURVEILLANCE SYSTEM ...

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MICROBIOLOGICALLY INFLUENCED CORROSION (MIC) OF MOST INDUSTRIALLY UTILIZED ALLOYS, INCLUDING THOSE USED IN MANY NAVAL APPLICATIONS, IS WELL ESTABLISHED. MIC OF COATED AND CATHODICALLY PROTECTED MATERIALS IS ALSO WELL DOCUMENTED. THE PROPOSED RESEARCH WOULD EXAMINE THE ROLES OF NATURALLY OCCURRING MEMBERS OF MIC COMMUNITIES OTHER THAN BACTERIA; THE ALGAE, PROTOZOANS AND FUNGI IN MIC PROCESSES, INCL ...

SHOCK VULNERABILITY IS AN IMPORTANT DESIGN CONSIDERATION FOR NAVAL SURFACE SHIPS AND SUBMARINES. ALTHOUGH ANALYTICAL PROCEDURES EXIST FOR EVALUATING THE RESPONSE TO SHOCK OF ELASTIC STRUCTURES IMMERSED INWATER, VERIFICATION IS BY MEANS OF SHOCK TESTS. THE CURRENT PRACTICE OF SHOCK TESTING FULL SCALE SURFACE SHIPS IS COSTLY AND DOES NOT FACILITATE THE DEVELOPMENT OF NEW HULL FORMS AND STRUCTURES. T ...