Abstract:THE MATERIALS REQUIREMENTS FOR THE PYROMETALLURGICAL REPROCESSING OF SPENT NUCLEAR FUEL ARE QUITE DEMANDING. IN FACT, CURRENTLY AVAILABLE MATERIALS LIMIT PYROMETALLURGICAL REPROCESSING. INNOVATIVE CERAMIC COMPOSITES OFFER THE OPPORTUNITY TO OVERCOME CURRENT MATERIALS LIMITATIONS AND PROVIDE… more
Abstract:SIALON IS A WELL ESTABLISHED, HIGH TECHNOLOGY CERAMIC UTILIZED IN INDUSTRIAL APPLICATIONS SUCH AS CUTTING TOOLS AND ENGINE COMPONENTS. IT IS PRODUCED THROUGH THE INSITU REACTION OF ITS CONSTITUENTS SI3N4, A1N AND A12O3 PLUS SINTERING AIDS. THERE IS CONSIDERABLE VARIATION IN PROPERTIES AND… more
Abstract:SILICON CARBIDE IS A VERY DESIRABLE STRUCTURAL CERAMIC BUT STATE-OF-THE-ART MONOLITHS ARE LACKING IN TOUGHNESS AND RELIABILITY. WHISKER TOUGHENING HAS NOT BEEN EFFECTIVE DUE TO THE DISAPPEARANCE OF THE SICW IN THE VERY HIGH TEMPERATURE CONSOLIDATION PROCESS. TIB2 PARTICLES HAVE BEENDEMONSTRATED… more
Abstract:THIS DOCUMENT DESCRIBES A PROPOSAL BY M-DOT INC. TO DESIGN, FABRICATE AND TEST A 110 LB. THRUST PULSEJET ENGINE TO BE USED AS A RESEARCH TOOL TO EVALUATE THE FOLLOWING CONCEPTS: 1. MICROPROCESSOR CONTROLLED ELECTRIC FUEL INJECTION. 2. HIGH DURABILITY VALVED AND VALVELESS INLET DESIGNS. 3. OXYGENATED… more
Abstract:OPTICAL FIBERS CAN BE EMBEDDED IN A COMPOSITE MATERIAL DURING PROCESSING. BY MONITORING THE INTENSITY, POLARIZATION, OR PHASE OF THE LIGHT PASSING THROUGH THE FIBER, LOCAL INFORMATION ON THE STATE OF THE COMPOSITE, I.E., TEMPERATURE, STRAIN, CAN BE OBTAINED. IN ONE CLASS OF IMPORTANT COMPOSITES,… more
Abstract:THIS PROGRAM WILL COMPILE A RESOURCE GUIDE IDENTIFYING LOW-COST DEVICES OR PRODUCTS THAT COULD PROVIDE GREATER INDEPENDENCE FOR DEVELOPMENTALLY DISABLED PERSONS. THE RESOURCE GUIDE WILL DESCRIBE THE ADAPTIVE DEVICES BY COST, TYPE, AND DISABILITY. THE PROGRAM WILL ALSO DESIGN AND DEVELOP A LOW-COST… more
Abstract:THIS PROPOSAL ADDRESSES A RESEARCH PROGRAM ON THE OPTIMAL METHOD FOR PRODUCING, CLOSING, AND ADJUSTING CONTROL SURVEY NETS. WE WILL INCORPORATE THE RECENT ADVANCES IN HARDWARE, SOFTWARE, AND THEIR INTERFACES AMONG SYSTEMS. WITHIN THIS ISSUE, WE WILL ADDRESS THE CURRENT AND FUTURE PRACTICES USED FOR… more
Abstract:HIGH-VALUE TEST ITEMS ARE OFTEN LOST IN OPEN-OCEAN TEST AND PRACTICE RANGES. SUCH ITEMS INCLUDE WEAPONS, FLIGHT DATA RECORDERS, MISSILES, DRONES, AND MANNED TACTICAL AIRCRAFT. THE LOSS OF VALUABLE TEST DATA CAN BE A SERIOUS PROBLEM. IN ADDITION, RECOVERY OF SOME ITEMS BY FOREIGN GOVERNMENTS NOT ONLY… more
Abstract:THIS PROPOSAL ADDRESSES THE TECHNICAL CHALLENGE TO U.S. INDUSTRY FOR DEVELOPMENT OF CONTROL SYSTEMS THAT ARE ADAPTABLE TO CHANGES IN THE COMPLEX MULTIPLE, CONCURRENT PROCESSES OF A SEMICONDUCTOR MANUFACTURING ENVIRONMENT. THE PROPOSED WORK IS EXPLORATORY RESEARCH WHICH WILL RESULT IN THE DEVELOPMENT… more
Abstract:MANIKINS ARE CURRENTLY FABRICATED WITH A SKELETON OF METAL "BONES" WHICH PROVIDE THE STRUCTURAL STRENGTH REQUIRED TO WITHSTAND THE REPEATEDLY HIGH ACCELERATIONS AND LOADS OF DYNAMIC TESTING. SUCH METAL STRUCTURES, HOWEVER, DO NOT EXHIBIT PROPER SEGMENT INERTIAL DISTRIBUTION OR LOAD-DEFORMATION… more
Abstract:THE MISSION AND PERFORMANCE REQUIREMENTS OF U.S. ARMY AIRCRAFT ARE CONTINUALLY BECOMING MORE STRINGENT. TO MEET THESE MMORE DEMANDING REQUIREMENTS, SIGNIFICANT WEIGHT REDUCTIONS MUST BE MADE. THE USE OF COMPOSITE MATERIALS IN PRIMARY AIRCRAFT STRUCTURES IS ONE OF THE TECHNOLOGIES BEING DEVELOPED TO… more
Abstract:THE USE OF THERMOPLASTIC MATERIALS IN ROTOR COMPONENTS MAY SIGNIFICANTLY REDUCE THE PROBLEM OF DELAMINATIONS AND INCREASE FATIGUE LIFE. HOWEVER, LITTLE IS KNOWN OF THE EFFECT THAT MANUFACTURING FLAWS, IMPURITIES, AND VOIDS HAVE ON ROTOR THERMOPLASTIC COMPONENTS STRENGTH AND STIFFNESS AFTER AN… more
Abstract:AN INCREASING NUMBER OR WHEELCHAIR-BOUND STUDENTS ARE ATTENDING PUBLIC SCHOOLS, A PROCESS KNOWN AS "MANINSTREAMING". CONSEQUENTLY, PROTECTING THESE STUDENTS IN THE EVENT OF A SCHOOL BUS COLLISION IS A SIGNIFICANT SAFETY ISSUE. EXISTING RESTRAINT SYSTEMS TEND TO FOCUS ON RESTRAINING THE WHEELCHAIR… more
Abstract:THIS PROJECT IS CONCERNED WITH A PATIENT DATABASE SYSTEM FORCARE PLANS AND MEDICAL RECORDS IN NURSING HOMES, HOME CARE INSTITUTIONS, AND SUBACUTE CARE FACILITIES. THE SYSTEM ALSOINCLUDES HANDLING OF DEMOGRAPHIC INFORMATION, CENSUS REPORTS, PATIENT ASSESSMENTS, AND CARE PLANS. THE CARE PLANS ARE… more
Abstract:THIS INVESTIGATION WILL BE DIRECTED TOWARDS THE DEVELOPMENT OF A HIGH-ACCURACY CRYOGENIC LINEAR ACTUATOR. ONE OF THE MOST STRAIGHTFORWARD APPROACHES TO THE PROBLEM OF LINEAR MOTION AT CRYOGENIC TEMPERATURES USES A ROTATING STEPPER MOTOR AND LEADSCREW ARRANGEMENT TO ACHIEVE THE DESIRED RESOLUTION AND… more
Abstract:THIS PROJECT EXAMINES THE ABILITY OF A COMPUTER BASED LEARNING AID TO ADAPT TO THE INDIVIDUAL, LEARNING DISABLED CHILD BY CHANGING THE MANNER IN WHICH IT PRESENTS SUBJECT MATTER. THE ABILITY OF COMPUTER BASED SYSTEMS TO QUICKLY ADAPT, WITHLITTLE OR NO EXTERNAL INSTRUCTION, TO DIFFERING SITUATIONS,… more
Abstract:AN ADVANCED TURBINE ENGINE FAN BLADE CONTAINMENT SYSTEM USING CERAMIC TILES ON A POLYMER FIBER BACKING RING IS PRO- POSED. THE PROPOSED CERAMIC/POLYMER-FIBER SYSTEM HAS PROVEN MORE WEIGHT EFFECTIVE THAN MONOLITHIC METALLIC OR POLYMER MATERIALS FOR STOPPING PENETRATION OF BALLISTIC MUNITIONS… more
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