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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Accurate measurement of gastrointestinal absorption of various substances is important in bothresearch and diagnosis. In many cases, the acceptable general approach is the balance procedure. Thisprocedure suffers from the requirement for complete collection of stools over an extended period oftime. This limitation prevents widespread use of this otherwise desirable approach. The investigatorspropo ...

Instrumentation that can provide microstructural characterization of medical grade polymers,fabrics, and composite materials is the proposed research's long term goal. One micron resolutionvolume computed tomography of test specimens can now be demonstrated by combining anNIST-developed x-ray microscope with BIR's volume CT capability. Micro VCT will be a valuable toolin the development of new med ...

We will adapt a non-cryogenic magnetic field sensor previously developed for defense purposesand apply it to magnetocardiography (MCG), the measurement of magnetic fields induced by electricalcurrents in the heart. As a single non-invasive sensor, this unit would have similar applications to theelectrocardiograph. When these units are assembled into a spatial array, the magnetic field can bemeasur ...

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 ...

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 have generated a monoclonal antibody, B6B21, and have shown that it significantlyenhances acquisition rates in hippocampus-dependent trace eyeblink conditioning in rabbits, halving thenumber of trials required to reach 80% conditioned responses. Previous studies, with a variety of modelsystems, have shown that B6B21 acts as a partial ago mst at the glycine site of the N-methyl-D-aspart-ate rece ...

The long-term goal of this project is to develop a commercially available vaginal suppositorycontaining a H2O2-producing strain of Lactobacillus for use in colonization of the vagina. Vaginallactobacilli are the primary microbial defense against infection. Lactobacillus predominant vaginal florais associated with decreased frequencies of gonorrhea and chlamydia infections. Women withH2O2-producing ...