Award Data

CHRONIC NEEDS FOR HIGHER PERFORMANCE IN PRESENT AND FUTURE ARMY ROTOCRAFT/AIR-VEHICLE SYSTEMS MANDATE IMPROVEMENTS IN MATERIALS PROPERTIES. LIGHTWEIGHT METAL MATRIX COMPOSITES (MMC) INCLUDING MAGNESIUM AND ALUMINUM ARE AMONG THE BEST CANDIDATES TO FULFILL THE REQUIREMENTS THAT ENABLE LIGHTWEIGHT STRUCTURES, ADVANCED PROPULSION, TRANSMISSIONS, ROTORS, THRUST DEVICES, ETC. A UNIQUE COATINGS APPROACH ...

A RESEARCH PROGRAM WILL BE PERFORMED TO PRODUCE A MORE COMPLETE UNDERSTANDING OF FASTENING SYSTEMS FOR ADVANCED COMPOSITES. THIS WILL INCLUDE EVALUATIONS OF CURRENT PRODUCTION FASTENER SYSTEMS AS WELL AS A CANDIDATE SYSTEM BASED ON THE USE OF A COLD EXPANSION PROCESS TO PERMANENTLY INSTALL THIN WALL PROTECTIVE GROMMETS IN FASTENER HOLES IN COMPOSITIES. THESE FASTENER SYSTEMS WILL BE TESTED FOR INT ...

N/A

TRANSIONOSPHERIC C3I RADIO SYSTEMS AND OTH RADARS BENEFIT FROM KNOWLEDGE OF PLASMA DENSITY (RADIO REFRACTIVE INDEX) IN THE IONOSPHERE AND GRADIENTS HEREIN. WE PROPOSE TO ASSESS FEASIBILITY OF AN IONOSPHERIC TOMOGRAPHY SYSTEM (ITS) FOR PROVIDING SUCH INFORMATION IN THE FORM OF NEAR-REAL-TIME IMAGES, USING MUTUALLY COHERENT VHF-UHF SIGNALS PRESENTLY TRANSMITTED FROM THE NNSS ("TRANSIT") SATELLITES. ...

DOD OPTICAL COMMUNICATION REQUIREMENTS HAVE MOVED BEYOND THE PERFORMANCE CAPABILITIES OF CONVENTIONAL FIBER OPTIC COMMUNICATION TECHNOLOGIES. CONVENTIONAL OPTICAL COMMUNICATION NETWORKS ARE LIMITED TO BASEBAND COMMUNICATION. HOWEVER, BREAKTHROUGHS IN NEW, BIREFRINGENT CRYSTAL TECHNOLOGY COMBINED WITH THE APPLICATION OF NEW HEURISTIC TECHNIQUES FOR OPTICAL LASER POWER MODULATION MAKE IT POSSIBLE TO ...

INFRARED SYSTEMS ARE NEEDED FOR A VARIETY OF DEFENSE RELATED APPLICATIONS, SUCH AS: SURVEILLANCE, TARGET DETECTION, ACQUISITION AND TRACKING, MISSILE GUIDANCE, ETC. FOR MANY APPLICATIONS SUCH AS THOSE INVOLVING COLD-DIM TARGETS, THESE SYSTEMS NEED TO OPERATE IN THE VERY LONG WAVELENGTH REGION OF THE INFRARED SPECTRUM, E.G. 15-35 MICRONS CUTOFF. IN THIS WAVELENGTH REGION, THE AVAILABILITY OF SUITAB ...

THE LATEST U.S. ARMY PRODUCTION HELICOPTERS INCLUDE CREWSEATS WHICH SIGNIFICANTLY REDUCE THE PROBABILITY OF SPINAL INJURY DUE TO VERTICAL IMPACT FORCES. HOWEVER, THE RISK OF INJURY TO THE UPPER TORSO AND HEAD DUE TO SECONDARY IMPACTS IS STILL UNACCEPTABLY HIGH. ONE OF THE REASONS FOR THIS IS THAT THE STANDARD FIVE-POINT RESTRAINT SYSTEM IS NOT DESIGNED TO RESTRAIN LATERAL MOTION, AND IMPACTS WITH ...

N/A

N/A

THERE IS A CHRONIC NEED FOR LIGHTER YET STRONGER MATERIALS FOR BOTH AMBIENT AND ELEVATED TEMPERATURE APPLICATIONS IN BOTH IAILITARY AND COMMERCIAL SECTORS. ONE REQUIREMENT IS FOR A 9OODEGF ALUMINUM FASTENER COMPATIBLE WITH ALUMINUM AND TITANIUM ALLOYS. MECHANICAL ALLOYING/RAPID SOLIDIFICATION PROCESSING USING INTERMETALLIC AND SPINEL DISPERSIONS HAVE DEMONSTRATED PROMISE FOR INCREASING THE SERVICE ...