Award Data

THE CONTRACTOR SHALL DEVELOP A FUZZY SET METHODOLOGY FOR UNCERTAINTY ANALYSIS IN PROBABILISTIC SEISMIC SAFETY ASSESSMENT OF NUCLEAR POWER PLANTS. FUZZY SET LOGIC WILL BEUSED FOR COLLECTING, QUANTIFYING AND PROPAGATING SUBJECTIVE,ENGINEERING JUDGEMENT USED IN THE UNCERTAINTY ANALYSIS. IN PHASE I, FEASIBILITY OF THE PROPOSED APPROACH WILL BE DEMONSTRATED BY APPLYING IT TO SELECTED PARTS OF A PROBABI ...

A PRACTICAL AND INEXPENSIVE SENSOR FOR RADON GAS IS PROPOSED. RADON IS A RADIOACTIVE GAS WHICH PERMEATES INTO HOUSES IN MANY AREAS AND IS NOW BELIEVED TO BE RESPONSIBLE FOR THOUSANDS OF CANCER DEATHS ANNUALLY. CURRENT APPROACHES TO RADON MEASUREMENT SAMPLE OVER EITHER TOO SHORTOR TOO LONG A PERIOD, AND PROVIDE LITTLE INFORMATION ON FACTORS CONTRIBUTING TO CONCENTRATION FLUCTUATIONS. THESE FACTORS ...

RESEARCH ON AN ALTERNATE MATERIAL, ANHYDRITE CALCIUM SULFATE, FOR USE AS CULTCH IN CONSTRUCTING SEED BEDS AND ARTIFICIAL OYSTER REEFS IS HEREIN PROPOSED. GIVEN THE FACTS THAT OYSTER PRODUCTION IN THE UNITED STATES HAS DECLINED GREATLY SINCE 1908 AND THAT NATURAL OYSTERSHELL IS SCARCE AND EXPENSIVE, MOTIVATION FOR USE OF THIS ALTERNATE MATERIAL AS CULTCH INCLUDES ITS CONTINUOUS PRODUCTION, LOW COST ...

This Phase 2 project targets the completion of the development of an improved system for the broadcasting of the WWVB signal, as a direct continuation of the Phase 1 project, which successfully validated the proposed approach through a feasibility study and analyses. Objectives of this project include the design of the new modulation scheme and protocol, the development of a new time-code generato ...

THE FEASIBILITY OF USING A CONVENTIONAL 3-CUP ANEMOMETER AND A HEATED THERMISTOR TO OBTAIN WIND SPEED AND WIND DIRECTION IS PROPOSED. THE TECHNIQUE ONLY REQUIRESKNOWLEDGE OF MONITORING THE ROTATION RATE OF THE ANEMOMETER AND DETERMINING THE PEAK RESPONSE OF A HEATED THERMISTOR WHICH IS EXPOSED TO THE FLOW ONCE WITH EACH REVOLUTION OF THE CUP ANEMOMETER VIA A SENSING PORT. THE TECHNIQUE DOES NOT RE ...

THIS PROJECT INVOLVES THE DEVELOPMENT OF A NEW TECHNIQUE FOR THE GENERATION OF COMPLEX THREE-DIMENSIONAL STRUCTURES DIRECTLY FROM A CAD/CAM DATABASE WITHOUT THE NEED FOR PRELIMINARY PROCESSES (MOLDS) OR SUBSEQUENT MACHINING (THE PARTS ARE FABRICATED TO NET SHAPE). THE INNOVATION IS TO USE INDEPENDENTLY TARGETED PARTICLES OF METAL OR COMPOSITE METAL TO BUILD STRUCTURES UNDER COMPUTER CONTROL IN MUC ...

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AN "INHALATION SCREENING DOSE COLLAR-STANCHION MONITOR" WITHEMBEDDED MINIATURE THIN-WALL GEIGER-MUELLER RADIATION DETECTORS EVALUATES THE THYROID GLAND FOR NANOCURIE ACTIVITYINVENTORY. THE PRIMARY TECHNICAL OBJECTIVE IS TO ESTABLISH THAT THE "COLLAR-STANCHION MONITOR" WILL BE CAPABLE OF DETECTING WITHIN 15 SECONDS AND WITH 2 SIGMA CONFIDENCE AN ACTIVITY INVENTORY OF 0.7 NANOCURIES OF I-131 DOSE EQ ...

TWO MAJOR OBSTACLES CONFRONTED PREVIOUS ATTEMPTS TO ANALYZE FIELD ICE BEHAVIOR; NAMELY: THE LACK OF PROPER CONSTITUTIVE LAWS TO MODEL REALISTIC ICE BEHAVIOR, PARTICULARLY AT HIGH STRAIN-RATES, AND THE DIFFICULTY IN INCORPORATING LARGE ICE DEFORMATIONS IN THE ANALYSIS. THIS PROPOSAL PRESENTS A STUDY WHICH WILL IMPLEMENT AN ICE CONSTITUTIVE MODEL SUBROUTINE TO WORK IN CONJUNCTION WITH A LAGRANGE EXP ...

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