Award Data

OF THE OVER 600,000 HIGHWAY BRIDGES AND APPROXIMATELY 100,000 RAILROAD BRIDGES IN THE U.S., MANY ARE DIFFICULT TO INSPECT BECAUSE OF LIMITED ACCESSIBILITY. REMOTE INSPECTIONBY UNMANNED AERIAL VEHICLES MAY PROVIDE A SOLUTION TO THIS PROBLEM, BUT INVOLVES CONSIDERATIONS OF VEHICLE SUITABILITY (HELICOPTER, BLIMP DUCTED FAN VEHICLE), THE BRIDGE LOCAL ATMOSPHERIC ENVIRONMENT, AND THE TYPE OF CONTROL (R ...

U.S. production of Halons will decrease from 28 million lbs in 1988 to zero in 1995 to meet the U.S. commitments to the Montreal Protocol. A major use of Halon 1301 is as a fire suppression flooding agent. The use of fine water mists from two-fluid atomizing nozzles is proposed as a replacement for Halon 1301 fire suppression systems, especially for Class B fuel fires. The optimum droplet size and ...

N/A

A DYNAMIC ATTRIBUTE SPECIFICATION AND ATTACHMENT KIT (DASAK) IS PROPOSED TO SERVE AS A SUPPORT COMPONENT FOR THE RAPIDLY RECONFIGURABLE CREWSTATION (RRC) PROGRAM. A DASAK WILL PROVIDE A USERFRIENDLY INTERFACE TO COCKPIT DESIGNERS WITHOUT PROGRAMMING EXPERIENCE FOR DEFINING DYNAMIC ATTRIBUTES AND ATTACHING THEM TO GRAPHIC OBJECTS, SUCH AS TARGET AIRCRAFT, WEAPONS, ETC., WHICH ARE FOUND IN COCKPIT D ...

N/A

This proposal describes a novel, high thrust density Detonation Wave Engine (DWE) applicable to the Mach range of 0 to 3. The geometry of this novel engine concept naturally provides for integration into a new Combined Cycle Engine with Ramjets. The concept is an intermittent combustion jet engine that harnesses travelling detonation waves to accomplish compression and chemical reaction. The goal ...

An innovative actively cooled structure concept is proposed which integrates proven cooling techniques and state-of-the-art fabrication methods to extend the maximum combustor wall temperature, thereby reducing cooling requirements and aircraft weight while improving engine performance. Specifically, CONvective and TRANspiration cooling (CONTRAN) are uniquely combined, relying on hydrogen coolant ...

N/A

COMPUTED TOMOGRAPHY (CT) IS RAPIDLY BECOMING AN IMPORTANT COMPLEMENT TO OTHER NON-DESTRUCTIVE EVALUATION (NDE) METHODS AND IS THE PREFERRED NDE TECHNIQUE WHENEVER THE PRIMARY GOAL IS TO LOCATE AND SIZE PLANAR AND VOLUMETRIC DETAIL IN THREE DIMENSIONS. HOWEVER, MODERN MILITARY CT SYSTEMS ARE CAPABLE OF GENERATING MORE THAN A GIGABYTE OF CT INSPECTION DATA PER DAY--AND EVEN HIGHER DATA RATES CAN BE ...

THE DEVELOPMENT OF ANALOG DEVICES FABRICATED ON DEFECT-FREE ADVANCED SUBSTRATES WITH INCREASED NEUTRON TOLERANCE IS PROPOSED. THIS CONCEPT WILL IMPLEMENT ULTRA-THIN, DEFECT-FREE, SILICON-ON-INSULATOR SUBSTRATES FABRICATED BY BONDING AND ETCH BACK (BESOI) TO DEMONSTRATE LATERAL BIPOLAR DEVICES WITH EXTREMELY LOW BASE RESISTANCE AND RECOMBINATION VOLUME. DEVICES WITH A CUT-OFF FREQUENCY IN EXCESS OF ...