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A self-pumping water heater is proposed wherein a small portion of the water to be pumped is evaporated in a boiler and used to pressurize and heat the main stream of water. Unlike early slow direct-acting steam pumps, the proposed approach operates at moderate frequencies and is extremely compact. In Phase I, an analytical model describing the dynamics of the process would be formulated, and a pr ...

A NEW MACHINING TECHNIQUE, DESCRIBED AS A CROSS BETWEEN A WIRE EDM (ELECTRIC DISCHARGE MACHINE) AND AN ECM (ELECTROCHEMICAL MACHINE), IS BEING INVESTIGATED. THE METAL REMOVAL PROCESS INVOLVES THE ANODIC DISSOLUTION OF THE WORKPIECE IN CLOSE PROXIMITY TO A MOVING WIRE, SIMILAR TO THE SPARK EROSION MACHINING OF A WORKPIECE PRODUCED BY A MOVING WIRE IN CURRENTLY AVAILABLE WIRE EDM EQUIPMENT. ONE DISA ...

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THE OBJECTIVE OF THIS SBIR EFFORT IS TO DEVELOPE AN IR SCRENE PROJECTOR BASED UPON IR LASER DIODES WHICH CAN BE USED IN HWIL SIMULATIONS TO TEST MISSILE SYSTEMS. THE GOAL OF THE PHASE I EFFORT IS TO DEVELOPE A SINGLE CHANNEL LASER DIODE IR PROJECTION SYSTEM TO DEMONSTRATE THE PERFORMANCE CAPABILITIES OF THE TUNABLE DIODE LASERS. THIS DOCUMENT PRESENTS AEGIS RESEARCH'S PROPOSAL FOR THE PHASE I EFFO ...

ONE OF THE MOST ACTIVE AND CHALLENGING FIELDS IN MOLECULAR BIOLOGY TODAY IS THE GENETIC STUDY OF EUKARYOTIC SYSTEMS. AN ESSENTIAL, BUT OFTEN RATE LIMITING STEP IN THIS AREA IS THE SCREENING OF DNA LIBRARIES FOR GENE ISOLATION. THIS PROCEDURE USES RADIOLABELED HYBRIDIZATION TECHNIQUES AND AUTORADIOGRAPHY TO ACHIEVE THE REQUIRED SENSITIVITY AND SPECIFICITY. THE PARTICULAR PART OF THE PROCESS WHICH T ...

NEW TECHNIQUES FOR DIGITAL X-RAY IMAGING HAVE BEEN UNDER INVESTIGATION FOR DECADES. SOME OF THE MOST PROMISING TEECHNIQUES INCORPORATE SOLID-STATE X-RAY DETECTORS, WHICH ARE ATTRACTIVE BECAUSE OF THEIR COMPACTNESS. HIGH-Z SEMICONDUCTOR X-RAY DETECTORS HAVE FURTHER ADVANTAGES DUE TO THEIR HIGH STOPPING POWER. ONE OF THE DRAWBACKS OF HIGH-Z SEMICONDUCTOR DETECTORS IS THE COST OF PRODUCING LARGE-AREA ...

AN INNOVATIVE ADVANCEMENT IN SCANNING IMPULSE RADAR ARRAY TECHNOLOGY OFFERS A NEW CAPABILITY TO DETECT BURIED METALLIC AND NONMETALLIC MINES. THE SCANNING IMPULSE RADAR ARRAY SYSTEM WILL INCORPORATE ACTIVE CANCELLATION AND POLARIZATION CONTROL TO ENHANCE THE MINE-SOIL INTERFACE TO PERMIT DETECTION. IN PHASE I OF THIS PROGRAM, A CONCEPT FEASIBILITY DEMONSTRATION WILL BE CONDUCTED. ADVANCED SIGNAL P ...

BECAUSE OF THE UNIQUE PROPERTIES OF DIAMOND, RECENTLY DEVELOPED CHEMICAL VAPOR DEPOSITED (CVD) DIAMOND THIN FILMS COULD BE USED IN A WIDE VARIETY OF APPLICATIONS FROM ELECTRONICS TO CUTTING TOOLS, INFRARED OPTICS TO ABRASIVES. HIGH QUALITY DIAMOND FILMS ARE PRESENTLY GROWN AT RATES OF ABOUT 1 MICRON/HR. CRUCIAL TO THE SUCCESSFUL COMMERCIALIZATION OF THE TECHNOLOGY IS THE ATTAINMENT OF LARGER GROWT ...

SILICON CARBIDE IS A LEADING NEW CANDIDATE FOR MIRROR BLANKS BECAUSE OF ITS HIGH STIFFNESS, RELATIVELY HIGH THERMAL CONDUCTIVITY, AND ABRASION RESISTANCE. THE BASE MATERIAL CONTAINS PORES OR LARGE GRAINS, WHICH MAKE IT DIFFICULT TO PROVIDE A SMOOTH FRONT SURFACE. RESEARCHERS HAVE DEVELOPED A PROCESS FOR USING ECR CHEMICAL VAPOR DEPOSITION TO DEPOSIT VERY SMOOTH AMORPHOUS SILICON CARBIDE (SIC) ON 1 ...

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