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Nitric oxide and nitrogen dioxide (jointly represented as NOx) constitute one of the primary classes of pollutants in engine exhaust from both on-road mobile sources such as diesel trucks, and off-road sources such as tractors. Monitoring the NOx concentration in exhaust streams is critical for efficient application of new technologies for the reduction of NOx emissions, and for the enforcement o ...

More than 70 percent of U.S. arsenic consumption¿representing approximately 37 million pounds of arsenic per year¿is used to produce chromated copper arsenate (CCA), a wood preservative. Weathered lumber in decks, docks, playground equipment, and garden construction can leach significant amounts of arsenic into soil and water, where it poses health risks to humans and animals. Effective Decemb ...

THE CONTRACTOR HAS PATENTED TECHNOLOGY FOR A UNIQUE PROCESS THAT DIRECTLY CONVERTS AN ACOUSTIC SIGNAL INTO A VISIBLE ONE IN REAL-TIME WITHOUT ELECTRONIC CIRCUITRY. THIS RELIES ON THE ACOUSTO-OPTICAL PROPERTIES OF A CONTINUOUS LAYER OF LIQUID CRYSTAL THIN FILM LAYER WHICH SERVES AS BOTH THE SENSOR AND THE DISPLAY. THE IMAGE CAN BE VIEWED DIRECTLY BY MEANS OF CCD CAMERA. HOLOGRAPHY PROVIDES FOR BOTH ...

Large X-ray generators using gas fill loads are a key element in the DTRA simulator program. Consistent relative timing between the injection of the gas shell and the generator current pulse is crucial to producing consistent, high-yield x-ray pulses.To that end HY-Tech proposes replacing existing high voltage trigger pin technology, with a sensitive, all fiber-optic heterodyne interferometer ba ...

Lactic acid (CAS No. 50-21-5, 2-hydroxypropanoic acid) is the most widely occurring hydroxycarboxylic acid and is distributed in normal food. Presently, lactic acid is used primarily in food and food-related applications. A small amount is used in medicine and cosmetics. More recently, due to the demand for ¿greener¿ chemicals for use in chemistry and engineering technologies, the scope for l ...

To comply with the U.S. Environmental Protection Agency¿s (EPA) directive of 10 ppb levels for arsenic in drinking water, there is an urgent need to develop new, simple, and effective treatment systems that can be qualified as best available technologies (BAT) to remove this toxic substance from water. Towards this goal, Materials Modification, Inc. (MMI) proposes to develop a novel arsenic-remo ...

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There is a need for low-cost, environmentally friendly processes for perchlorate remediation of drinking water supplies. Widespread perchlorate contamination of groundwaters only recently has been discovered. Health risks due to perchlorate ingestion include the disruption of thyroid gland function, which can lead to tumor formation and child development problems. This research project will res ...