Award Data

Use of chromates as corrosion inhibi.tors in coatings, adhesives and sealants is a well established technology. However, toxicity and waste disposal problems have led to the urgent need for development of an environmentally benign substitute for chromium compounds in coatings and sealants, which is the subject of this SBIR. This pa'per discusses the state-of-the-art technical approaches to the sol ...

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The proposed innovation is to apply differential phase acoustic microscopy to NDE inspection of ceramic Sn3N4 ball bearings. Differential phase acoustic microscopy is more sensitive than standard acoustic microscopy, and can provide the location and size of defects, which is a specific goal of the subtopic. The specific goal of this research is to assess the feasibility of differential phase acous ...

We propose a method of generating x-rays that will combine high instantaneous output of rotating-anode x-ray tubes with continuous cooling rates as great or greater than fixed-anode tubes. This combination can be achieved in a mechanically simple way, and will reduce spot wobble without vacuum seals, vacuum bearings, deflecting field, or conventional cathodes, by either thermionic or photoemission ...

THE BLACK-LIP PEARL OYSTER, PINCTADA MARGARITIFERA, IS THE SOURCE OF RARE, VALUABLE BLACK PEARLS. CULTURE OF THIS SPECIES HAS PROVEN HIGHLY LUCRATIVE IN FRENCH POLYNESIA, WITH STRENGTHENING WORLDWIDE DEMAND. THE HAWAIIAN SUB-SPECIES, P. MARGARITIFERA GALTSOFFI, IS ON THE HAWAII STATE ENDANGERED SPECIES LIST. STOCKS ARE SCARCE DUE TO BOTH NATURAL RECRUITMENT LIMITATIONS AND THE HISTORY OF OVERFISHI ...

NATIVE HAWAIIANS "FORM AN UNDERPRIVILEGED MINORITY BOTH IN HAWAII AND ON THE MAINLAND UNITED STATES, WITH CHARACTERISTICS SIMILAR TO NATIVE AMERICANS, BLACKS, AND HISPANICS" (ATU LIKE, 1989). THE NATIVE HAWAIIAN COMMUNITY HAS A HISTORY OF UNDERREPRESENTATION IN THE BUSINESS SECTOR. THE ULTIMATE OBJECTIVE IS TO HELP NATIVE HAWAIIANS CLOSE THE GAP ON THE TECHNICAL ASPECT OF AN AQUACULTURE/HYDROPON ...

THERMOSET POLYMER COMPOSITES HAVE BEEN USED AS BUILDING MATERIALS FOR MANY YEARS AND ARE SUCCESSFULLY USED IN THE CONSTRUCTION OF MARINE VESSELS, AIRCRAFT, BUILDINGS, AND SPACE VEHICLES. PULTRUSION IS ONE WELL-KNOWN PROCESS THAT IS USED THROUGHOUT INDUSTRY TO MANUFACTURE COMPOSITES. COMPOSITES CAN BE REINFORCED WITH FIBERGLASS, CARBON, OR OTHER FIBERS TO CREATE HIGH STRENGTH, LIGHT WEIGHT, AND D ...

We propose to develop a FORTRAN-based portable parallel programming system. This system will allow user programs to run unchanged on most MIMD machines with shared as well as non-shared memory. The unique aspects of this system will be (a) message driven execution for latency tolerance, (b) information sharing abstractions, (c) extensive support for reuse and modularity, (d) extensive support for ...

MULTIPLE ACCESS PROTOCOLS ARE USED TO PERMIT LARGE NUMBERS OF INDEPENDENT TRANSMITTERS TO SHARE A SINGLE COMMUNICATION CHANNEL. THERE ARE THREE DIFFERENT TYPES OF MULTIPLE ACCESS PROTOCOLS WHICH ARE USED IN MOST WIRELESS DATA NETWORKS TODAY-TDMA, CDMA AND ALOHA. CDMA PROTOCOLS CAN BE EFFICIENT BUT AS THEY ARE IMPLEMENTED TODAY, THEY TEND TO BE EXTREMELY COMPLICATED BECAUSE OF THE USE OF MULTIPLE ...

We propose to develop a general purpose computer code for calculating the scattering from antennas on an aircraft, which is described by a CAD file. The scattering contribution will include both the passive structure mode and active irradiation mode, calculcated by a hybrid of a high-frequency ray technique and a rigorous finite element technique. The proposed code will be made compatible with the ...