Abstract:THE THREE-WAY CATALYTIC CONVERTER IS THE MOST IMPORTANT DEVICE MAKING TODAY'S AUTOMOBILES COMPLY WITH EXISTING EMISSION LAWS. THE FIRST TWO OR THREE MILES IN A TYPICAL 22-MINUTE, 12-MILE COMUTE IN TODAY'S VEHICLES RESULT IN THE EMISSION OF HALF OF THE TOTAL NON-METHANE HYDROCARBONS, WHICH RESULT IN… more
Abstract:Critical systems need protection from power failure in the field environment. The current generation of uninteruptible power supplies (UPS) is based on storage batteries. This severely limits power density and causes the size of the unit to rise rapidly as the discharge time required increases,… more
Abstract:Human presence in space for extended time periods will require closed regenerative life support systems in which water for crew use can be reclaimed from urine, hygiene waste waters and humidity condensate. New technology is required to provide for removal of impurities common to spacecraft waste… more
Abstract:Power requirements for manned U.S. spacecraft missions have been provided by fuel cells powered by cryogenic hydrogen and oxygen launched from earth. For long-term missions, propellant weight makes this approach prohibitive. Regenerative H2-O2 fuel cells have been identified as an enabling… more
Abstract:Soft tissue wounds normally heal via contracture and scar formation, and this repair process hasbeen shown to be accompanied by a measurable electrical field. However, many wounds (e.g., burns,decubitus ulcers) require assistance to heal. One means of improving this process has beenaugmentation of… more
Abstract:Multichip modules (MCM) technology is a technology that bridges the widening gap between the increasing complexity and speed of monolithic integrated circuit (IC) devices and the ability to package them in a system environment that preserves the inherent speed and thoughput of the devices. A wide… more
Abstract:AUTONOMOUS UNDERSEA VEHICLES (AUVS), SUBSEA ROBOTS, AND OTHER INSTRUMENTED AND REMOTELY OPERATED SYSTEMS FOR MARINE APPLICATIONS REQUIRE A POWER SOURCE WHICH IS AS EFFICIENT AS POSSIBLE TO GIVE LONG RANGE OR EXTENDED USE TIMES. THE OBVIOUS CHOICE IS AN ELECTROCHEMICAL UNIT OF FUEL CELL TYPE. … more
Abstract:DECONTAMINATION OF DENSE NONAQUEOUS PHASE LIQUIDS (DNAPLS) FROM SUBSURFACE SOILS AND GROUNDWATER FORMATIONS PRESENTS A COMPLEX ENVIRONMENTAL PROBLEM THAT HAS PROVEN EXTREMELY DIFFICULT TO REMEDIATE. THERE IS A CRITICAL NEED TO DEVELOP AND IMPLEMENT EFFECTIVE TREATMENT METHODS FOR DNAPL-CONTAMINATED… more
Abstract:At present, the only fuel cell systems that have the capability of achieving high power den W cm-2) are the proton exchange membrane (PEM) and the alkaline fuel cell (AFC) systems. Of these, the PEM system is the leading candidate fuel cell power source for many military and commercial applications.… more
Abstract:At present, four classes of structural adhesives (epoxy resins, phenolic resins, acrylic adhesives and urethanes) are commonly employed in applications where the adhesive joint is either totally immersed in salt or fresh water or subject to high levels of moisture while simultaneously experiencing… more
Abstract:THERE IS A RENEWED INTEREST IN FUEL CELLS AS PRIMARY POWER SOURCES FOR ELECTRIC VEHICLES. THE ACIDIC PROTON EXCHANGE MEMBRANE FUEL CELL OPERATES AT A MAXIMUM TEMPERATURE OF 95 DEGREES CENTIGRADE AND, AT PRESENT, RELIES ON THE USE OF PLATINUM-BASED ELECTROCATALYSTS. FOR ACID FUEL CELLS OPERATING AT… more
Abstract:Water is one of the basic commodities which will be needed in ever increasing quantities as industrialization and urbanization of the world progresses presenting many new challenges for the water processing industry. As new industrial products have been developed and manufactured with increasing… more
Abstract:This grant concerns the development of a superior laser surgical tool. We have found that laserablation is enhanced when tissue are pretreated with microdrops of dye, nominally 50um in diameter.The use of dye to couple the laser energy to the tissue has two advantages: (i) energy absorption… more
Abstract:THE FEDERAL AVIATION ADMINISTRATION (FAA) HAS LONG BEEN INTERESTED IN THE MITIGATION OF HAZARDS TO LIFE SAFETY FROM FIRE ONBOARD COMMERCIAL AIRCRAFT. THE DEVELOPMENT OF SUPERIOR FIRE RETARDANT (FR) ADDITIVES FOR POLYMERIC MATERIALS, WHICH MIGHT BE USED IN THE INTERIORS OF AIRCRAFT, IS ONE WAY TO… more
Abstract:Our objective is to develop a method for monitoring DNA damage. Damage to DNA in the formof double and single strand breaks will be assessed by fluorescent, in situ nick translation, employingsuspensions of lymphoid cells and a DNA synthesizing system containing E. coli DNA polymerase I.Ionizing… more
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