Award Data

RAILROAD RAILS AND CAR WHEELS SUFFER MECHANICAL WEAR THROUGH USE, AND THIS WEAR IS A MAJOR MAINTENANCE EXPENSE ITEM FOR MOST RAILROADS. IT HAS BEEN SHOWN THAT SUBSTANTIAL REDUCTION IN WEAR CAN BE ACHIEVED THROUGH LUBRICATION, ALTHOUGH THE LUBRICATORS THEMSELVES ARE A MAINTENANCE PROBLEM. IT IS PROPOSED TO DEVELOP AN ANTI-WEAR COATING WHICH CAN BE APPLIED PERIODICALLY TO RAILS TO REDUCE WEAR AND TO ...

USCG SOLICITATION 90-CG5 SUGGESTS EVALUATION OF KALMAN FILTERING A DIGITAL SIGNAL PROCESSING (DSP) TECHNIQUE, TO IMPROVE GEODETIC POSITIONING PROVIDED BY SINGLE CHAIN, AND EVENTUALLY, MULTICHAIN LORAN RECEIVERS. A DSP TECHNIQUE COMPARABLE TO KALMAN FILTERING HAS ALREADY BEEN IMPLEMENTED ON A SINGLE CHAIN LORAN RECEIVER, RESULTING IN SUBSTANTIAL GEODETIC POSITIONING IMPROVEMENTS IN NOISY, DYNAMIC E ...

THIS PROPOSAL DESCRIBES AN INNOVATIVE FILTERING TECHNIQUE THAT CAN BE USED TO DETECT AND REJECT OUT-OF-TOLERANCE MEASUREMENTS FROM A DIFFERENTIAL GPS NAVIGATION SOLUTION. THE TECHNIQUE CAN BE APPLIED FOR BOTH MOBILE AND STATIC APPLICATIONS AND COULD BE INTEGRATED INTO SHIPBOARD OR REFERENCE STATION GPS RECEIVERS. USING THE FILTER DESIGN PROPOSED, ERRORS CAUSED BY MULTIPATH, SATELLITE, RECEIVER ORR ...

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CURRENT NATIONAL AIRSPACE NAVIGATION REQUIRES MULTIPLE NAVIGATION AIDS TO SUPPORT EN ROUTE, NON-PRECISION APPROACH,AND PRECISION APPROACH AND LANDING. MULTIPLE NAVIGATION SYSTEMS ARE EXPENSIVE TO MAINTAIN AND OPERATE. THIS EXPENSELIMITS THE AVAILABILITY OF PRECISION APPROACH AND LANDING SERVICES PRIMARILY TO MINOR REGIONAL AIRPORTS. UNAIDED GPS RECEIVERS WILL SOON BE ABLE TO MEET EN ROUTE AND NON- ...

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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Extensive research (Ukraine) has shown that high strength continuous fibers of basalt can be produced. These fibers are inexpensive and have exceptionally high strength, stiffness and corrosion resistance. Basalt is a naturally occurring volcanic mineral, consisting a variety concentration of oxides. The product envisioned is a low-cost, corrosion resistant replacement for steel bar in reinforc ...

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