Abstract:A novel nitrogen beam source will provide 5 eV atomic and molecular nitrogen to a 0.5 cm diameter circle with a flux of 10(21)/cm(2)/sec. Larger areas can be irradiated with a lower flux (eg. 10(18)/cm(2)/sec over a 2" diameter wafer). The technique will put minimal gas load into the chamber so it… more
Abstract:A unique approach to formation of nitride materials using matrix isolation methods will be attempted. Large quantities of reactants can be prepared and forced to react under much more controlled conditions than in CVD or MBE. Important issues that will be addressed are epitaxial growth and growth… more
Abstract:The Digital Diary is intended to give clinicians administering ambulatory blood pressure or ecg recresearchers evaluating pharmaceuticals and biologicals, a device that will improve subject compliancimprove quality of data collected, and reduce time required to collect and analyze data. The… more
Abstract:Weld inspection reliability is a major thrust area for the Navy's R&D program. Needs exist for nondestructive evaluation (NDE) technologies that can reliably detect, classify and size discontinuities in weldments, and that use this information to determine if the defects are acceptable or… more
Abstract:The best Human System Interface (HSI) to a large multi-domain knowledge base is a knowledgeable human librarian. Current computer based browsing technologies fall far short of this ideal because the number of possible data relationships is very large and any attempts to capture and utilize them… more
Abstract:This Phase l is a feasibility study of the design and synthesis of novel, non-intercalative dyes for nucleic acid (DNA/RNA) probes for DNA hybridization and other nucleic acid quantitation assays. In the past, radiolabels were used for detecting hybrids, but these are being replaced by… more
Abstract:Using a combination of novel and traditional fabrication techniques, ultra-short gate (110nm) FETs have been fabricated which are sufficiently small, and have sufficiently low capacitance that single electron gating is observed. The devices also exhibit I-V hysteresis in the single electron… more
Abstract:The use of electric power in aeronautical and space applications shows an increasing trend throughout the years. Equipment used for communication and navigation, control systems, pumps, actuators, precision timing devices, life support systems etc., all require electric power in some form. This… more
Abstract:A remediation of aquifers contaminated by hydrocarbon products is a national priority. The presence of NAPLs at residual saturation in the soil and the subsurface media represents a continuous long-term source of organic contamination to ground water. An understanding of the transport behavior of… more
Abstract:Parenteral vaccines have many limitations which pose problems for both military and civilian vaccination programs. Parenteral vaccines must be administered by trained personnel, a booster is generally required for maximum protection, they usually contain a single immunogen and require refrigeration… more
Abstract:Fuel cells bring about the direct conversion of stored chemical energy to electrical energy having efficiencies much higher than those of Carnot engines. So far, the proton exchange membrane (PEM) fuel cell system is the leading candidate fuel cell power source for many military and commercial… more
Abstract:Semiconductor-catalyzed photooxidation of chemical waste is a comparatively recent development which offers several advantages over other know oxidation processes. The advantages include: 9i) no consumption of expensive oxidant; (ii) catalyst is non- hazardous; (iii) the photocatalytic reactions… more
Abstract:The purpose of this Phase I project is to demonstrate a feasibility of using room-temperature, air and water stable molten salts to fabricate advanced non-lithium batteries as compact, high power, quick reacting, long term inert storable energy sources for use in military weapons or missile targets.… more
Abstract:The structures of aircraft onen suffer from corrosion especially in humid, hot, polluted areas, and near to marine environnents. CoiTosion nay shorten the aircraft's sevice life, increase naintenance and repair costs, and even cause structural failures. Therefore, there is a critical need to develop… more
Abstract:No one questions the philosophy that it is better to avoid industrial pollutionrather than to attempt the clean up of an environmentally abused site.Unfortunately, we are slow to learn this lesson and hazardous wastes become moreexotic and continue to increase. Causing 21 of the 28 EPA superfund… more
Abstract:Treating waste sites contaminated with dioxin is both costly and difficult. Current clean up standards require that treatment reduce dioxin residuals to very low levels. The allowable level of residuals is very strict because of the assessment that dioxin poses a serious health hazard. At present,… more
Abstract:Insulated gate bipolar transistors (IGBT) represent the standard component in converters for electric vehicles and motor control. However, they are a mature technology where only marginal performance improvements can be expected, and improvements in IGBT based converter efficiency can only reflect… more
Abstract:Industrial wastewater containing toxic waste compound and metal ions pose manyproblems of disposal. The most generally used method of removing metalcontaminants is lime treatment to precipitate metals as hydroxides. The metalis not normally recovered resulting in the need for sludge disposal. The… more
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