Award Data

THIS PROGRAM DEALS WITH THE EVALUATION OF LIQUID LEVEL DETECTION DATA OBTAINED DURING THE MT-4 EXPERIMENT, WHICH IS THE LAST TEST PERFORMED IN THE LOCA SIMULATION IN NRU REACTOR PROGRAM. THESE DATA OFFER THE POTENTIAL OR RELATINGTHE ONLY FULL-LENGTH IN REACTOR REFLOOD INFORMATION ON N NUCLEAR-POWERED PWR FUEL BUNDLES TO COLLAPSED LIQUID LEVEL AND TWO-PHASE COOLING OF DEFORMED AND RUPTURED FUEL BUN ...

THIS PROPOSAL IS DIRECTED TO THE DEVELOPMENT OF A PROCEDURE FOR GENERATING LONG STREAMFLOW SEQUENCES. IT IS PROPOSED TO FIRST DEVELOP A LONG SEQUENCE OF HOURLY RAINFALL BY STOCHASTIC METHODS AND TO TRANSFORM THIS RAINFALL SEQUENCE INTO STREAMFLOW WITH A DETERMINISTIC HYDROLOGIC MODEL. PHASE I WILL FOCUS ON THE A STOCHASTIC RAINFALL MODEL CAPABLE OF DEVELOPING RAINFALL SEQUENCES AT MULTIPLE SITES. ...

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 ...

A solution to the need for OD 3 to OD 10 neutral density filters in the infrared (2 to 25 um) with flat wavelength dependence is suggested using submicron thickness polymer films as substrates for multi-layer or co-deposited metallic alloy coatings. Initial studies used Lexan and although they showed feasibility, a stronger and more temperature resistant ultrathin substrate such as polyimide film ...

The purpose of the Thomas Drop Net Concept is to introduce a new method of catching pure schools of surface feding fish with the ability to select only those schools of targeted species which are of desirable size. The method involves a helicopter deployed drop net which is lowered around a selected school of targeted species, pursed, and left floating. When the seiner arrives, they place a tr ...

Innovative methods, based on thermodynamics theory, will be developed to establish a unified approach in quantifying the damage state of thermal barrier coatings (TBC) under high temperature service conditions. After surveying existing material damage models, a mechanistic model which describes rate- and temperature-dependent deformation behavior of TBC with material damage will be proposed. Spe ...

This proposal deals with the application of advanced mathematical concepts for developing a general purpose, fire detection and suppression system that can be adapted for residential, commercial, and industrial environments. The system utilizes a suite of common (or future) sensors that are networked; it employs a distributed control strategy with local "intelligence," and uses advanced data and ...

Southwest Sciences will develop a novel fire detection technology based on optical spectroscopy, using diode lasers and fiber optics. Rapid, quantitative detection of part per million concentrations (or better) of multiple gases, including carbon monoxide, carbon dioxide, hydrogen cyanide, hydrogen chloride, and a fiber optical distribution network permits one laser to be used for at least 800 di ...

THERE IS A NEED FOR AN UNATTENDED GAS CHROMATOGRAPH THAT CANMAKE CONTINUOUS MEASUREMENTS OF CARBON DIOXIDE ON SURFACE BUOYS OR SHIPS OF OPPORTUNITY. AN INNOVATIVE REAL TIME, LOWPOWER, AND INEXPENSIVE SURFACE ACOUSTIC WAVE (SAW) RESONATOR-BASED GAS CHROMATOGRAPH IS PROPOSED THAT OFFERS THE UNIQUE FEATURES OF RUGGED CONSTRUCTION, SMALL SIZE, AND LOW POWER AND GAS CONSUMPTION. THE UNIQUE IMPLEMENTATI ...

This project wil address the design and manufacture of a composite overwrapped tank with a thin metal liner, compatible with the requirements for containment of ultra-high purity gases. The complete tank design will be subjected to a Finite Element Analysis to provide a tank which will operate safely within the prescribed pressure limits of 200 bar (3000 psi) working pressure and 600 bar (9000 ps ...