Award Data

COMMERCIAL AND GOVERNMENT SPACE TRANSPORTATION SYSTEMS DEPEND ON GROUND SUPPORT FOR NAVIGATION. THE GROUND SOLUTION CAN BE COSTLY AND MAY PROVIDE LESS ACCURACY THAN NEEDED. A GPS-BASED REAL-TIME AUTONOMOUS SPACECRAFT NAVIGATION SYSTEM IS PROPOSED. AN ALGORITHM WILL BE DEVELOPED WHICH COMBINES GPS-DERIVED POINT POSITION ESTIMATES WITH A PROPAGATED A PRIORI POSITION ESTIMATE. THE POINT POSITIONS ARE ...

Digital Wave Corporation proposed to develop a novel nondestructive testing (NDT) system for high speed acquisition and analysis of wide band acoustic emission (AE) waveforms. The system will provide the capability to detect, identify and locate crack growth in loaded steel structures. This system will incorporate the new high fidelity sensor developed by the Federal Highway Administration and a ...

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A CONCRETE CONSOLIDATION SYSTEM WILL BE DEVELOPED WHICH TAKES ADVANTAGE OF THE RESONANCE PHENOMENON AND HARMONIC COMBINATION OF INTERNAL AND SURFACE VIBRATIONS FOR EFFICIENTACHIEVEMENT OF UNIFORM AND THOROUGH CONSOLIDATION OF CONCRETE PAVEMENTS. AN INTEGRATED ANALYTICAL-EXPERIMENTAL RESEARCH IS PLANNED TO ASSESS THE TECHNICAL FEASIBILITY AND COST COMPETITIVENESS OF THE PROPOSED APPROACH. ANALYTICA ...

A NEED EXISTS TO MONITOR VIBRATION IN HIGHWAY BRIDGES. IT IS DESIRABLE TO MONITOR MANY POINTS ON THE BRIDGE. THE CURRENT PROBLEM IS THAT SENSORS MUST BE WIRED TO A CENTRAL LOCATION. WIRE IS DIFFICULT TO INSTALL AND TO MOVE. THE SOLUTION IS TO COLLECT SENSOR DATA BY RADIO. A SYSTEM EXISTS THAT ELIMINATES WIRE. IT GATHERS SENSOR DATA TO A CENTRAL LOCATION BY RADIO. THE SYSTEM'S UNIQUE FEATURE IS THA ...

Passenger safety concerns have prompted the FAA to elicit energy-sensitive neutron detectors which do not rely on the time-of-flight method and are suitable for use in explosive detection systems. Invocon, Inc. proposes to design an inspection system consisting of an energy source and a detector. Designated FERET sytem, (Field Energy Recoid Emission Technology), it would detect substances identi ...

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Polymer Bridge Systems, with over 8 years of research composite bridges, found that success hinges on being dollar-for-dollar cost competitive with steel and concrete. We founded the four "golden rules" that are required: the bridge must be: 1) factory build; 2) road transportable; 3) installed in 1 eight-hour day; and 4) be cost-competitive on an installed cost basis. This bridge will be buil ...

A NEED EXISTS FOR A COMPACT, PORTABLE SYSTEM CAPABLE OF MEASURING DYNAMIC STRESSES INDUCED BY HEAVY TRUCKS IN THE STRU- TURAL MEMBERS OF BRIDGES. USE OF STATE-OF-OF THE-ART ELEC- TRONIC CIRCUITRY NOW ALLOWS CONSTRUCTION OF A HYBRID ANALOG-DIGITAL INDICATOR THATCAN DISPLAY THE PEAK STRESSES A BRIDGEEXPERIENCES BY USING DATA FROM STRAIN SENSORS ATTACHED TO THE BRIDGE. THE FEASIBILITY OF BUILDING SUC ...

DYNAMIC QUANTIFICATION OF THE THREE-DIMENSIONAL SURFACE GEOMETRY OF ANTHROPOMORPHIC TEST DEVICES CAN IMPROVE CURRENT INJURY ASSESSMENT CAPABILITIES. PRESENTLY, A CHEST BAND CONSISTING OF MANY STRAIN GAUGES MOUNTED IN A MEMBRANE ARRAY IS BEING USED TO MEASURE DEFORMATION OF THE TORSO. WHILE THIS TECHNIQUE PROVIDES REASONABLE DATA, IT INCREASES THE COSTOF DATA ACQUISITION AND THE TIME TO PERFORM THE ...