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THE OBJECTIVE OF THIS PROJECT IS TO DEVELOP A NEW CLASS OF BIOSENSORS BASED ON THE USE OF COLLOIDAL GOLD DIRECTLY OR DEPOSITED AS A POROUS GOLD FILM. THE KEY TO THE APPROACH ISTHE IMMOBILIZATION OF ENZYMES ON GOLD SURFACES THAT PROVIDE FOR HIGHFLUX, HETEROGENEOUS ELECTRON TRANSFER. THE FEASIBILITY OF CONSTRUCTING THIS NEW CLASS OF BIOSENSORS WILL BE EVALUATED BY THE END OF PHASE I. THE OBJECTIVES ...

TO ACHIEVE PRECISE SHAPING OF DENSITY PROFILES IN FUSION REACTORS WITH PELLET FUELING, INJECTION VELOCITIES OF UP TO 10 KM/SEC MAY BE REQUIRED FOR PELLETS OF A FEW MILLIGRAMS IN MASS. PRESENT PELLET INJECTORS BASED ON THE PNEUMATIC GUN OR CENTRIFUGE PRINCIPLES ARE CAPABLE OF ATTAINING VELOCITIES OF ABOUT 2 KM/SEC, AND THE BASIC CONCEPTS DO NOT APPEAR TO BE EASILY SCALABLE TO HIGHER PERFORMANCES. A ...

THERE ARE AT PRESENT A LARGE NUMBER OF CAMAC MODULES DESIGNED FOR TRANSIENT RECORDER WORK. WHILE THESE PROVIDE ADMIRABLE TECHNICAL QUALITIES THEY ALSO PRESENT SOME FORMIDABLE PROBLEMS. THE BIGGEST OF THESE ARE THEIR HIGH PRICES AND THE AMOUNT OF CRATE SPACE THEY REQUIRE. THE PRICE PROBLEM COMES INTO PLAY AT SPEEDS ABOVE 1MHZ SINCE THESE MODULES USE FLASH CONVERTERS THAT ARE VERY EXPENSIVE. THE OTH ...

AN INTELLIGENT LIST-PROCESSING INTERFACE BETWEEN THE VAXBI AND FASTBUS WILL BE DEVELOPED. THE VAXBI IS THE 13.3 MEGABYTE/SEC BACKPLANE INTERCONNECT FEATURED IN VAX 8200, 8300, 8800, AND OTHER FUTURE VAX COMPUTER SYSTEMS. THE INTENT IS TO PROVIDE A HIGH BANDWIDTH GATEWAY BETWEEN A VARIETY OF VAX CONFIGURATIONS, INCLUDING SINGLE PROCESSORS, MULTIPROCESSORS, AND CLUSTERED PROCESSORS, AND THE FASTBUS. ...

THIS PROPOSAL PRESENTS A RESEARCH PLAN FOR THE MEASUREMENT OF SURFACE FIGURE OF X-RAY OPTICAL COMPONENTS ON AN IN-PROCESS BASIS. THIS MEASUREMENT IS USEFUL DURING THE FABRICATION OF X-RAY OPTICAL COMPONENTS, ESPECIALLY SINCE THE PROPOSED MEASUREMENT IS NON-CONTACTING AND CAN MEASURE ALOW REFLECTANCE, OR UNCOATED SURFACE. THE LACK OF PRECISE SURFACE FIGURE CAN EFFECT THE PERFONNANCE OF X-RAY OPTICA ...

UP TO 35,000 WORKERS OF THE U.S. CHEMICAL INDUSTRY AND MORE THAN 270,000 WORKERS IN THE PETROLEUM AND COAL-RELATED INDUSTRIES MAY BE EXPOSED DAILY TO CARCINOGENIC AND MUTANOGENIC COMPOUNDS FROM THE AROMATIC AMINE GROUP. COAL GAS, INC. DEVELOPED A VERY SIMPLE HIGH-TECHNOLOGY APPROACH TO MONITORING THE EXPOSURE OF PERSONNEL TO TRACE LEVELS OF POLLUTANTS AND IS PROPOSING TO CONDUCT R & D WHICH WILL E ...

SILICON NITRIDE POWDER HAS SUBSTANTIAL ADVANTAGES OVER OTHER CERAMIC POWDER FOR APPLICATIONS SUCH AS CUTTING TOOL INSERTS, ROTARY SHAFTS FOR TURBINES, AND ENGINE VALVES. CONSEQUENTLY, THE MARKET DEMAND IS EXPECTED TO INCREASE FROM 250,000 LBS TO 2.5 MILLION LBS ANNUALLY BY 1995, PROVIDED AN ECONOMIC PRODUCTION PROCESS IS DEVELOPED. THUS, SUCCESSFUL RESULTS ON THE PRESENT PROJECT COULD RESULT IN SU ...

DNA AND BIOSEQUENCES ARE BEING DETERMINED FASTER THAN THEY CAN BE COMPARED AND ANALYZED. PRESENT TECHNIQUES FOR RIGOROUSLY SEARCHING A LARGE DATABASE ARE COSTLY AND TIME CONSUMING. UNDER ALL PLAUSIBLE GROWTH PROJECTIONS, THE PROBLEM WILL SOON BECOME OVERWHELMING. A CUSTOM, VERY LARGE SCALE INTEGRATED CIRCUIT THAT COULD BE USED FOR HIGH SPEED COMPARISON, ANALYSIS, AND INTERPRETATION OF DNA AND PROT ...