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General-Purpose Front End for Real-Time Data Processing

FRONTIER is a computer program that functions as a front end for any of a variety of other software of both the artificial intelligence (AI) and conventional data-processing types. As used here, “front end” signifies interface software needed for acquiring and preprocessing data and making the data available for analysis by the other software. FRONTIER is reusable in that it can be rapidly tailored to any such other software with minimum effort. Each component of FRONTIER is programmable and is executed in an embedded virtual machine. Each component can be reconfigured during execution. The virtual-machine implementation making FRONTIER independent of the type of computing hardware on which it is executed.

Posted in: Software, Briefs

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Two Algorithms for Processing Electronic Nose Data

Vapors are identified and their concentrations are estimated. Two algorithms for processing the digitized readings of electronic noses, and computer programs to implement the algorithms, have been devised in a continuing effort to increase the utility of electronic noses as means of identifying airborne compounds and measuring their concentrations. One algorithm identifies the two vapors in a two-vapor mixture and estimates the concentration of each vapor (in principle, this algorithm could be extended to more than two vapors). The other algorithm identifies a single vapor and estimates its concentration.

Posted in: Information Sciences, Briefs

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Program Merges SAR Data on Terrain and Vegetation Heights

X/P Merge is a computer program that estimates ground-surface elevations and vegetation heights from multiple sets of data acquired by the GeoSAR instrument [a terrain-mapping synthetic-aperture radar (SAR) system that operates in the X and P bands]. X/P Merge software combines data from X- and P-band digital elevation models, SAR backscatter magnitudes, and interferometric correlation magnitudes into a simplified set of output topographical maps of ground-surface elevation and tree height.

Posted in: Software, Briefs

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Simulation Software Enables Development and Validation of NASA Probe Bus and Probe Carrier

MSC Nastran and MSC Adams Enterprise Simulation Software MSC.Software Corp. Santa Ana, CA 714-540-8900 www.mscsoftware.com NASA’s MIDEX Mission THEMIS (Time History of Events and Macroscale Interactions during Substorms) aims to resolve one of the oldest mysteries in space physics: namely, to determine what physical process in near-Earth space initiates the violent eruptions of the aurora that occur during substorms in the Earth’s magnetosphere. THEMIS is a 2-year mission consisting of five identical probes that will study the violent colorful eruptions of Auroras.

Posted in: Application Briefs

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Imaging Software Provides Access to Critical Mission Images Across NASA

Presto Imaging Software Inmagic Woburn, MA 781-287-6277 www.inmagic.com With every space shuttle mission, hundreds of individuals across NASA need to access extensive photographs, video footage, and other imaging assets in order to monitor launch results, review design decisions, and ensure mission safety. Additional video footage and still images shot on orbit enables NASA engineers to compare pre-flight and in-flight images in order to assess functionality and highlight areas that warrant further scrutiny. Until recently, only the Image Analysis Team (IAT) staff could view these baseline images, and sometimes with delays due to the complexity of accessing them.

Posted in: Application Briefs

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Taking Advantage of Parallel Parametric Testing

The production of many electronic devices begins with wafer processing. In addition to complementary metal oxide semiconductor (CMOS) integrated circuits (ICs), this can include such diverse devices as radio frequency (RF) components based on III-V compounds and chemical detectors based on carbon nanotube (CNT) field effect transistors (FETs). In both R&D and production applications, there is a great deal of effort devoted to increasing device test throughput in order to shorten the time to market and reduce costs.

Posted in: Articles

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NASA Tech Briefs Free Webinar

Specialty Lubrication in New Product Design Wednesday, September 19, 2007, 2:00 PM EST Lubricants are often the forgotten components in the design of moving elements. Last-minute redesign and changes can be avoided by considering lubricant performance needs during the design phase. High-performance equipment generates more local heat because of the higher speeds and loads in smaller components. Traditional lubricants that may have worked in the past often fail in the next-generation component causing delays in product launch or significant customer dissatisfaction during use. By using premium, high-performance synthetic lubricants, improved performance and extended life can be achieved. Sponsored by DuPont, NASA Tech Briefs presents this FREE webinar, which will: - Review characteristics of true high-temperature/high-performance lubricants. - Describe applications that have benefited from improved lubrication performance. Click here for more info and to register.

Posted in: Blog

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