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Microscopic measurement of surface topography is a continuing need in microfabrication technology and materials research. The aim of this research is to adapt the scanning electron microscope (SEM) to the quantitative measurement of a wide range of surface structures. The SEM is a widely used measurement tool in materials science and semiconductor fabrication. The SEM's strength is that it prov ...

WE PROPOSE TO APPLY ARTIFICIAL NEURAL NETWORKS TO THE DERIVATION OF CLOUD MOTION VECTORS FROM SATELLITE IMAGERY. IN PHASE I, WE WILL CONCENTRATE ON USING A NEURAL NETWORK IN THE FIRST STEP IN THE DERIVATIO OF CLOUD MOTION VECTORS, THE HEIGHT ASSIGNMENT AND TARGET SELECTION. THE NEURAL NETWORK COMBINES, AT EACH IMAGE PIXEL, BRIGHTNESS IN DIFFERENT CHANNELS TO DETERMINE CLOUD TYPE AND LEVEL (I.E., L ...

Smart IR technology has advanced at a rapid pace over the last two decades, pushed along by primarily defense-related requirements. This includes such breakthroughs as Acousto-Optic Tunable Filters and microbolometer detector arrays. Coupled with the continuing growth in microprocessor power, this promises to make a new generation of fast, cheap and reliable infrared (IR) fire detectors possible ...

The ultimate objective of this project is to develop an instrument capable of remote detection and location of tornadoes and/or storms containing tornadoes. There are many reports, both scientific and anecdotal, suggesting that tornadoes and tornadic thunderstorms emit anomalous electromagnetic (EM) radiation-both RF and luminous. This radiation is characterized by unusually high rates of EM pulse ...

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The overall quality and the comprehensive strength, in particular, of concrete are critically dependent on the water content in the concrete mixture. It is also essential to know if the concrete has reached a stage of moisture equilibrium before surface finishes such as paint or carpet can be applied. At present, no reliable method or easy-to-use instrument exists for determining the moisture co ...

THIS PROPOSAL IS PREPARED IN DIRECT RESPONSE TO THE NRC'S SOLICITATION FOR AN IMPROVED DEVICE TO MEASURE AIR MOVEMENT FOR PERSONNEL RADIATION PROTECTION AND HEALTH PHYSICS APPLICATIONS IN NUCLEAR FACILITIES. THE PURPOSE OF THE NEW DEVICE IS TO PROPERLY LOCATE AIR SAMPLERS SO THAT THE AIR SAMPLED IS REPRESENTATIVE OF THE AIR INHALED BY WORKERS. ALTHOUGH AIR FLOW RATE SENSORS SUCH AS ANEMOMETERS ARE ...

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Arca proposes research leading to development of a suite of methodology support products to help meet the need for innovative assurance techniques appropriate for emerging information technologies. The product will consist of a licensable methodology and supporting materials for specifying, building, and evaluating assurance arguments for products and systems based on the capability of security en ...