3,017,147 research outputs found

    Highly-efficient horn/reflector antenna

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    Antenna has beam efficiency of 96 percent. Configuration is compact and relatively inexpensive

    CHARACTERISTICS OF HIGHLY EFFICIENT FARMS

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    A sample of Kansas farms was used to examine the relationship between overall efficiency and farm characteristics. Overall efficiency was significantly related to operator age, farm size, and farm type. Approximately 26.7% of the farms were in the top one-third overall efficiency category for more than half of the sample period.Farm Management,

    Highly efficient Localisation utilising Weightless neural systems

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    Efficient localisation is a highly desirable property for an autonomous navigation system. Weightless neural networks offer a real-time approach to robotics applications by reducing hardware and software requirements for pattern recognition techniques. Such networks offer the potential for objects, structures, routes and locations to be easily identified and maps constructed from fused limited sensor data as information becomes available. We show that in the absence of concise and complex information, localisation can be obtained using simple algorithms from data with inherent uncertainties using a combination of Genetic Algorithm techniques applied to a Weightless Neural Architecture

    Technique for highly efficient recovery of microbiological contaminants

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    Collecting and recovery small assay samples of viable microbiological contaminants in a gas stream involves use of a commercially available water-soluble paper. This paper is nontoxic to a number of microbiological organisms and can be dry-heat-sterilized

    Balltracking: an highly efficient method for tracking flow fields

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    We present a method for tracking solar photospheric flows that is highly efficient, and demonstrate it using high resolution MDI continuum images. The method involves making a surface from the photospheric granulation data, and allowing many small floating tracers or balls to be moved around by the evolving granulation pattern. The results are tested against synthesised granulation with known flow fields and compared to the results produced by Local Correlation tracking (LCT). The results from this new method have similar accuracy to those produced by LCT. We also investigate the maximum spatial and temporal resolution of the velocity field that it is possible to extract, based on the statistical properties of the granulation data. We conclude that both methods produce results that are close to the maximum resolution possible from granulation data. The code runs very significantly faster than our similarly optimised LCT code, making real time applications on large data sets possible. The tracking method is not limited to photospheric flows, and will also work on any velocity field where there are visible moving features of known scale length
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