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CURRENT ACTIVITY WITHIN THE NRC AND THE NUCLEAR INDUSTRY SEEKS TO EXPLOIT THE BENEFITS OF PRA IN RISK-BASED APPROACHES TO RELIEVE REGULATORY BURDEN ON THE ECONOMICALLY THREATENED NUCLEAR POWER PLANTS. THE ACCIDENT PREVENTION GROUP HAS BEEN DEVELOPING THE CONCEPT OF AN INTEGRATED RISK MANAGEMENT PROGRAM (IRMP) TOWARD SUCH GOALS. A KEY ELEMENT OF AN IRMP IS AN "OPERATIONAL RISK MODEL" OF THE NPP THA ...

Development of efficient spray combustors requires a complete understanding of fundamental phenomena that influence and control the overall spray combustion process. Toward this end, detailed experimental characterization of spray flames is essential. This includes measurement of various fuel droplet parameters such as droplet size, velocity, number density, temperature, composition, and droplet ...

The specific problem addressed by the proposed research is the development of a scanner for storage phosphor plates with significantly better positional and intensity accuracy than the current state of the art. The new scanner will be based on the use of a "scanning head" scanning approach which is more simple, accurate, and stable than the approaches previously used. This results in stable and ...

THERE IS A NEED TO REDUCE DOLPHIN BYCATCH IN THE TUNA PURSE SEINE FISHERY IN THE ETP AND IMPROVE THE SEARCHING EFFICIENCY FOR TUNAS NOT ASSOCIATED WITH DOLPHINS. ARETE PROPOSES TO DESIGN IN PHASE 1 A PROTOTYPE AIRBORNE PASSIVE DAYTIME MULTISPECTRAL IMAGING SYSTEM FOR IMPROVING THE SEARCHING EFFICIENCY FOR TUNAS NOT ASSOCIATED WITH DOLPHINS. THIS EFFORT INCLUDES AIRBORNE COLLECTION OF OCEAN VIDEO D ...

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Ceilings Unlimited proposes to develop a popular entertainment television show (¿The Program¿) for climate education and outreach. The Program will integrate NOAA assets in near real-time in a localizable broadcast entertainment vehicle that increases public awareness and consciousness of NOAA and its climate services. Ceilings Unlimited will systematically investigate and explore creative opt ...

OBJECT-ORIENTED HAVE RECENTYLY EXPLODED INTO THE SOFTWARE ENGINEERING ARENA, AND SHOW GREAT POTENTIAL IN REDUCING SOFTWARE COSTS BY INCREASING PROGRAMMER PRODUCTIVITY, ENHANCING SOFTWARE QUALITY, AND PROMOTING REUSABLE SOFTWARE. EACH OF THESE METHODOLOGIES OFFERS DIFFERENT FEATURES AND DOMAINS OF APPLICABILITY. INTEROPERATION OF THESE METHODOLOGIES LOOMS AS A CRITICAL TECHNICAL PROBLEM AS MORE ORG ...

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THE U.S. WEATHER SERVICE PRESENTLY USES A "TIPPING BUCKET" RAIN GAUGE FOR MEASURING RAIN ACCUMULATION. THIS DEVICE IS SENSITIVE TO WIND AND MOTION (AS ON BUOYS), CANNOT MEASURE RAIN RATE, AND REQUIRES FREQUENT MAINTENANCE, BECAUSE OF MOVING PARTS. AN ALTERNATIVE DEVICE IS BEING PROPOSED, WHICH INCORPORATES A RIGID, RESONANT TUBE, CLOSED AT THE TOP BY AN ELECTRO-ACOUSTIC TRANSDUCER, AND AT THE BOTT ...