Award Data

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75352-Many DOE sites require the monitoring of radionuclide contamination in surface water, groundwater, soils, and the vadose zone ¿ often in real-time and with remote monitoring capability. However, existing site characterization procedures typically involve the collection and shipment of samples to an off-site laboratory, leading to costly delays in site remediation as well as to increased ri ...

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THIS RESEARCH PROJECT WILL DEMONSTRATE THE TECHNICAL AND ECONOMIC FEASIBILITY OF A MAGNETIC SEPARATOR FOR OPERATION ON PULVERIZED COAL. A THEORETICAL COMPARISON OF THE SEPARATOR WITH WORK PUBLISHED ON OPEN GRADIENT MAGNETIC SEPARATION BY THE OAK RIDGE NATIONAL LABORATORY INDICATES THAT THE SEPARATOR WILL HAVE HIGH LEVELS OF ASH CLEANING. THIS IS BECAUSE OF ITS COUNTERCURRENT PRINCIPLE OF OPERATION ...

75859 Absorption refrigeration is the only currently available method that utilizes low-temperature waste heat to provide cooling. Unfortunately, absorption cooling systems for commercial and small industrial applications are relatively large and expensive, require costly-to-maintain cooling towers, and are difficult to interface with conventional vapor-compression refrigeration equipment. This ...

THERE IS A NEED FOR AN INEXPENSIVE, COMPACT, LOW MAINTENANCE SUB-PICOSECOND OPTICAL PULSE SOURCE TO DRIVE AN OPTICALLY SAMPLED AND TRIGGERED OSCILLOSCOPE. ADEQUATE LASER SOURCES PRESENTLY OCCUPY TEN SQUARE FEET AND REQUIRE REGULAR MAINTENANCE, 20 KW OF ELECTRICITY, AND COOLING WATER; AND THEY COMPRISE THE MAIN COST ITEM IN THE PICOSECOND OSCILLOSCOPE. THE NEW PULSED LASER UNDER DEVELOPMENT IN THIS ...

THIS PROJECT STUDIES AN EFFICIENT AND INNOVATIVE NATURAL GAS EXPLORATION SYSTEM COMPOSED OF A HIGHLY SENSITIVE, PORTABLE, REAL TIME, INFRARED LASER DETECTION SYSTEM FOR METHANE AND ETHANE COUPLED TO A PORTABLE SHALLOW DRILLING SYSTEM AND AN AUTOMATED DATA MAPPING SYSTEM. THIS SAME SYSTEM WILL BE DIRECTLY USEFUL IN EVALUATING AND LOCATING UNDERGROUND LEAKS IN NATURAL GAS TRANSMISSION AND DISTRIBUTI ...

41068 November 20, 1996 Aerodyne Research, Inc. Scintillation phosphors, materials commonly used in particle detectors, emit a photon of light when struck by a subatomic particle, and the light flashes are counted as an indicator of atomic decay. This project will explore the feasibility of monitoring tritium by using an ultra low density (milligrams per ...

76321-Predictions of global warming caused by human activities rely on complex models, which include time variable sources and sinks of atmospheric gases such as carbon dioxide. Reliable modeling depends on the existence of accurate and frequently-taken atmospheric profiles of these greenhouse gases. As of now, no readily deployable carbon dioxide sensor exists for this task. This project will ...

75422-The increase of atmospheric CO2 from fossil fuel combustion is a major contributor to global warming and climate change. Improved measurement technology for directly determining the exchange fluxes of the stable isotopes of CO2 is crucial to understanding the natural carbon cycle, which transforms atmospheric CO2 into biological carbon, and to develop strategies to mitigate the problem. Ba ...