Microwave Treatment as a Pesticide Alternative for Stored-Products (open access)

Microwave Treatment as a Pesticide Alternative for Stored-Products

None
Date: May 21, 2003
Creator: Bigelow, T.; Forrester, S.; Halverson, S.; Halverson, B. & Phillips, T.
Object Type: Report
System: The UNT Digital Library
Microwave Treatment as a Pesticide Alternative for Stored-Products (open access)

Microwave Treatment as a Pesticide Alternative for Stored-Products

This CRADA was a continuation of earlier work with Micro-Grain, Inc. to develop power, high frequency microwave treatment process to treat insect infested grain. ORNLs role was as a subcontractor to Micro-Grain's Phase II SBIR project funded by the US Department of Agriculture. The primary objective was to develop a commercial scale prototype unit capable of treating infested grain at flow rates approaching 1 kg/sec, which is required to be viable in the grain handling industry. A flow rate of {approx} 0.12 Kg/second was demonstrated at 20 kW microwave power level with 100% kill rate. The system is capable of 200 kW however waveguide arcing due to grain dust in the waveguide limited the power to 20 kW during the tests. Development tasks performed during the project included modification of an existing high-power microwave exposure facility to uniformly process large grain samples at high flow rates and improved instrumentation to detect grain flow and uniformity. Microwave processing tasks include a series of controlled exposure tests using infested grain samples provided and analyzed by the University of Oklahoma. Grain samples were infested with red flour beetles which proved the most difficult to kill in earlier tests. Most of the samples processed …
Date: May 21, 2003
Creator: Bigelow, T.S.; Forrester, S.C.; Halverson, S.; Halverson, B. & Phillips, T.
Object Type: Report
System: The UNT Digital Library
Major Tax Issues in the 108th Congress (open access)

Major Tax Issues in the 108th Congress

None
Date: May 21, 2003
Creator: Brumbaugh, David L. & Richards, Don C.
Object Type: Report
System: The UNT Digital Library
Army Corps of Engineers Civil Works Program: Issues for Congress (open access)

Army Corps of Engineers Civil Works Program: Issues for Congress

This report presents the issues considered by the 108th Congress related to the civil works program of the U.S. Army Corps of Engineers (Corps). The Corps plans, constructs, and operates water resources facilities primarily for flood control, navigation, and environmental purposes.
Date: May 21, 2003
Creator: Carter, Nicole T. & Sheikh, Pervaze A.
Object Type: Report
System: The UNT Digital Library
Appropriations for FY2004: U.S. Department of Agriculture and Related Agencies (open access)

Appropriations for FY2004: U.S. Department of Agriculture and Related Agencies

Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This Report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the House and Senate Appropriations Subcommittees on Agriculture.
Date: May 21, 2003
Creator: Chite, Ralph M.
Object Type: Report
System: The UNT Digital Library
Reproducibility: A Major Source of Uncertainty in Weighing (open access)

Reproducibility: A Major Source of Uncertainty in Weighing

Balance confirmation tests usually include eccentricity, linearity, and repeatability. The latter is a measure of the random variability of the instrument. Further, repeatability is usually based on 10 consecutive measurements of a mass standard in a short period of time. The test results are used to verify the balance performs within manufacturer's specifications. These test results are often used in calculating an estimate of the uncertainty in measurements made with the balance. Uncertainty estimates, used to quantify the quality of measurements, must accurately estimate the magnitude of these errors. Does the repeatability test provide a realistic estimate of the random variation in the weighing process? The authors had concerns that it may not. The reproducibility estimate of the balance needs to be determined for the variables that will change between measurements of the same material while the other parameters are held constant by procedures and training.
Date: May 21, 2003
Creator: Clark, J.P.
Object Type: Article
System: The UNT Digital Library
Water Infrastructure Financing: History of EPA Appropriations (open access)

Water Infrastructure Financing: History of EPA Appropriations

None
Date: May 21, 2003
Creator: Copeland, Claudia
Object Type: Report
System: The UNT Digital Library
Water Infrastructure Financing: History of EPA Appropriations (open access)

Water Infrastructure Financing: History of EPA Appropriations

None
Date: May 21, 2003
Creator: Copeland, Claudia
Object Type: Report
System: The UNT Digital Library
Terrorism and Security Issues Facing the Water Infrastructure Sector (open access)

Terrorism and Security Issues Facing the Water Infrastructure Sector

None
Date: May 21, 2003
Creator: Copeland, Claudia & Cody, Betsy A.
Object Type: Report
System: The UNT Digital Library
DEMONSTRATiON OF A SUBSURFACE CONTAINMENT SYSTEM FOR INSTALLATION AT DOE WASTE SITES (open access)

DEMONSTRATiON OF A SUBSURFACE CONTAINMENT SYSTEM FOR INSTALLATION AT DOE WASTE SITES

Between 1952 and 1970, DOE buried mixed waste in pits and trenches that now have special cleanup needs. The disposal practices used decades ago left these landfills and other trenches, pits, and disposal sites filled with three million cubic meters of buried waste. This waste is becoming harmful to human safety and health. Today's cleanup and waste removal is time-consuming and expensive with some sites scheduled to complete cleanup by 2006 or later. An interim solution to the DOE buried waste problem is to encapsulate and hydraulically isolate the waste with a geomembrane barrier and monitor the performance of the barrier over its 50-yr lifetime. The installed containment barriers would isolate the buried waste and protect groundwater from pollutants until final remediations are completed. The DOE has awarded a contract to RAHCO International, Inc.; of Spokane, Washington; to design, develop, and test a novel subsurface barrier installation system, referred to as a Subsurface Containment System (SCS). The installed containment barrier consists of commercially available geomembrane materials that isolates the underground waste, similar to the way a swimming pools hold water, without disrupting hazardous material that was buried decades ago. The barrier protects soil and groundwater from contamination and effectively meets …
Date: May 21, 2003
Creator: Crocker, Thomas J. & Carpenter, Verna M.
Object Type: Report
System: The UNT Digital Library
Japan-U.S. Relations: Issues for Congress (open access)

Japan-U.S. Relations: Issues for Congress

None
Date: May 21, 2003
Creator: Cronin, Richard P. & Manyin, Mark E.
Object Type: Report
System: The UNT Digital Library
An Overview of the U.S. Public Health System in the Context of Bioterrorism (open access)

An Overview of the U.S. Public Health System in the Context of Bioterrorism

None
Date: May 21, 2003
Creator: Harvey, Holly
Object Type: Report
System: The UNT Digital Library
Congressional Budget Actions in 2003 (open access)

Congressional Budget Actions in 2003

During the first session of the 108th Congress, the House and Senate will consider many different budgetary measures. Most measures pertain to fiscal year (FY) 2004 (which began on October 1, 2003) and beyond. Some also pertain to the budget for FY2003. As the session progresses, this report will describe House and Senate action on major budgetary legislation within the framework of the congressional budget process and other procedural requirements.
Date: May 21, 2003
Creator: Heniff, Bill, Jr.
Object Type: Report
System: The UNT Digital Library
Gun Control Legislation in the 108th Congress (open access)

Gun Control Legislation in the 108th Congress

This report discusses the information related to gun control legislation. The contents include Gun-related statistics, federal regulation of firearms, legislative action in the 108th Congress
Date: May 21, 2003
Creator: Krouse, William J.
Object Type: Report
System: The UNT Digital Library
''6-Degrees of Freedom'' Single Crystal Plasticity Experiments (open access)

''6-Degrees of Freedom'' Single Crystal Plasticity Experiments

A deformation experiment has been developed specifically for the purpose of validation of dislocation dynamics simulations of plastic flow up to strains on the order of 1% [1]. The experiment has been designed so that a compressive uniaxial stress field is essentially super imposed on the test sample, and the crystal is free to deform with 3 orthogonal translation directions, and 3 rotation/tilt axes of freedom and has been given the name ''6-degrees of freedom'' (6DOF) experiment. The rotation, tilt and translation of the crystal are monitored by 5 laser displacement gages and 3 extensometers. Experiments are being performed on high purity Mo single crystals orientated for ''single slip''. All of the experiments are performed in pairs, with one test sample having highly polished surfaces for optical light and AFM slip-trace analyses, and the other having 4 strain gage rosettes mounted on the sides for measurement of the bi-axial surface strains during testing. All of the experimental data is used together to determine the slip activity of the orientated single crystal during deformation. Experimental results on high-purity Mo single crystals are presented. The results of these experiments show that slip behavior is in substantial deviation from the expected ''Schmid'' behavior. …
Date: May 21, 2003
Creator: Lassila, D. H.; Florando, J. N.; LeBlanc, M. M.; Arsenlis, T. & Rhee, M.
Object Type: Article
System: The UNT Digital Library
Heel Removal Analysis for Mixing Pumps of Tank 8 (open access)

Heel Removal Analysis for Mixing Pumps of Tank 8

Computational fluid dynamics methods were used to recommend a slurry pump operational strategy for sludge heel removal in Tank 8. Flow patterns calculated by the model were used to evaluate the performance of various combinations of operating pumps and their orientation. The models focused on removal of the sludge heel located at the east side of Tank 8 using the four existing slurry pumps. The models and calculations were based on prototypic tank geometry and expected normal operating conditions as defined by Waste Removal Closure (WRC) Engineering. The calculated results demonstrated that for pump speeds higher than 1800 rpm and at a 130 inch liquid level, a recommended orientation of the slurry pumps could be provided, based on a minimum sludge suspension velocity of 2.27 ft per sec. Further results showed that the time to reach a steady-state flow pattern was affected by both the tank level and the pump speed. Sensitivity studies showed that for a given pump speed, a higher tank level and a lower pump nozzle elevation would result in better performance in suspending and removing the sludge. The results also showed that the presence of flow obstructions were advantageous for certain pump orientations.
Date: May 21, 2003
Creator: Lee, Si Young
Object Type: Report
System: The UNT Digital Library
TWR Bench-Scale Steam Reforming Demonstration (open access)

TWR Bench-Scale Steam Reforming Demonstration

The Idaho Nuclear Technology and Engineering Center (INTEC) was home to nuclear fuel reprocessing activities for decades at the Idaho National Engineering and Environmental Laboratory. As a result of the reprocessing activities, INTEC has accumulated approximately one million gallons of acidic, radioactive, sodium-bearing waste (SBW). The purpose of this demonstration was to investigate a reforming technology, offered by ThermoChem Waste Remediation, LLC, (TWR) for treatment of SBW into a ''road ready'' waste form that would meet the waste acceptance criteria for the Waste Isolation Pilot Plant (WIPP). TWR is the licensee of Manufacturing Technology Conservation International (MTCI) steam-reforming technology in the field of radioactive waste treatment. A non-radioactive simulated SBW was used based on the known composition of waste tank WM-180 at INTEC. Rhenium was included as a non-radioactive surrogate for technetium. Data was collected to determine the nature and characteristics of the product, the operability of the technology, the composition of the off-gases, and the fate of key radionuclides (cesium and technetium) and volatile mercury compounds. The product contained a low fraction of elemental carbon residues in the cyclone and filter vessel catches. Mercury was quantitatively stripped from the product but cesium, rhenium (Tc surrogate), and the heavy metals …
Date: May 21, 2003
Creator: Marshall, D. W. & Soelberg, N. R.
Object Type: Report
System: The UNT Digital Library
THOR Bench-Scale Steam Reforming Demonstration (open access)

THOR Bench-Scale Steam Reforming Demonstration

The Idaho Nuclear Technology and Engineering Center (INTEC) was home to nuclear fuel reprocessing activities for decades at the Idaho National Engineering and Environmental Laboratory. As a result of the reprocessing activities, INTEC has accumulated approximately one million gallons of acidic, radioactive, sodium-bearing waste (SBW). The purpose of this demonstration was to investigate a reforming technology, offered by THORsm Treatment Technologies, LLC, for treatment of SBW into a ''road ready'' waste form that would meet the waste acceptance criteria for the Waste Isolation Pilot Plant (WIPP). A non-radioactive simulated SBW was used based on the known composition of waste tank WM-180 at INTEC. Rhenium was included as a non-radioactive surrogate for technetium. Data was collected to determine the nature and characteristics of the product, the operability of the technology, the composition of the off-gases, and the fate of key radionuclides (cesium and technetium) and volatile mercury compounds. The product contained a low fraction of elemental carbon residues in the cyclone and filter vessel catches. Mercury was quantitatively stripped from the product but cesium, rhenium (Tc surrogate), and the heavy metals were retained. Nitrates were not detected in the product and NOx destruction exceeded 98%. The demonstration was successful.
Date: May 21, 2003
Creator: Marshall, D. W.; Soelberg, N. R. & Shaber, K. M.
Object Type: Report
System: The UNT Digital Library
Cyprus: Status of U.N. Negotiations (open access)

Cyprus: Status of U.N. Negotiations

Cyprus has been divided since 1974. Greek Cypriots, nearly 80% of the population, live in the southern two thirds of the island. Turkish Cypriots live in the “Turkish Republic of Northern Cyprus” (recognized only by Turkey), with about 30,000 Turkish troops providing security. U.N. peacekeeping forces maintain a buffer zone between the two. Members of Congress have urged the Administration to be more active, although they have not proposed an alternative to the U.N.-sponsored talks.
Date: May 21, 2003
Creator: Migdalovitz, Carol
Object Type: Report
System: The UNT Digital Library
Emergency Communications: Meeting Public Safety Spectrum Needs (open access)

Emergency Communications: Meeting Public Safety Spectrum Needs

This report has two main sections. In the first section “Identifying Public Safety Needs,” some of the organizations involved with public safety telecommunications are introduced, and key activities dealing with wireless and spectrum issues are summarized. The second main section, “Spectrum for Public Safety,” is organized by the major spectrum bands where public safety wireless communications are in use or planned. These are at: 100-512 MHz; 700 MHz; 800 MHz; 900 MHz and 4.9 GHz. Ultra-wide band (UWB), that broadcasts across a broad range of frequencies, is also discussed. The final section of this report recaps recent activities and legislation in the 107th and 108th Congresses regarding public safety and spectrum use.
Date: May 21, 2003
Creator: Moore, Linda K.
Object Type: Report
System: The UNT Digital Library
China's Economic Conditions (open access)

China's Economic Conditions

China’s economy remained relatively healthy in 2002, despite economic slowdowns in other parts of the world. Foreign investment continued to pour into China, and the Chinese government effectively used public spending to boost the economy. However, painful economic reforms will be necessary to keep the economic strong in 2003 and beyond. The recent outbreak in early 2003 of a very contagious virus called SevereAcuteRespiratory Syndrome (SARS) in China appears to have had a short-term negative impact on the Chinese economy.
Date: May 21, 2003
Creator: Morrison, Wayne M.
Object Type: Report
System: The UNT Digital Library
Appropriations for FY2004: Transportation, Treasury, Postal Service, Executive Office of the President, General Government, and Related Agencies (open access)

Appropriations for FY2004: Transportation, Treasury, Postal Service, Executive Office of the President, General Government, and Related Agencies

Appropriations are one part of a complex federal budget process that includes budget resolutions, appropriations (regular, supplemental, and continuing) bills, rescissions, and budget reconciliation bills. This Report is a guide to one of the 13 regular appropriations bills that Congress passes each year. It is designed to supplement the information provided by the Subcommittee on Transportation, Treasury and Independent Agencies of the House Committee on Appropriations the Subcommittee on Transportation, Treasury and General Government of the Senate Committee on Appropriations.
Date: May 21, 2003
Creator: Peterman, David Randall & Frittelli, John F.
Object Type: Report
System: The UNT Digital Library
Data Mining: An Overview (open access)

Data Mining: An Overview

Data mining is emerging as one of the key features of many homeland security initiatives. Often used as a means for detecting fraud, assessing risk, and product retailing, data mining involves the use of data analysis tools to discover previously unknown, valid patterns and relationships in large data sets. This report discusses the data mining uses (i.e. Terrorism Information Awareness (TIA) Program) and issues (i.e. data quality, interoperability, privacy), as well as the limitations of data mining.
Date: May 21, 2003
Creator: Seifert, Jeffrey W.
Object Type: Report
System: The UNT Digital Library
Replacing annual shut-in well tests by analysis of regular injection data: Field-case feasibility study (open access)

Replacing annual shut-in well tests by analysis of regular injection data: Field-case feasibility study

Regulations governing deep injection of industrial wastes for disposal require regular tests for monitoring the formation hydraulic properties changes in the vicinity of the wellbore. Such a monitoring is performed through transient pressure well testing, a procedure that is routinely used in the environmental and oil industries. In such tests, the pumping pressures and rates are recorded and analyzed to estimate the transmissivity and storativity of the rock in the vicinity of the wellbore. Numerous methods for analyzing such data have been developed since the pioneering paper by Theis (1935). The well test analysis methods are summarized in several monographs, see, e.g., Earlougher (1977) and Matthews (1967). Traditional well test analysis methods are often based on estimating the slope of the pressure fall-off curve in a special time scale, e.g., using the Horner plot method (Horner, 1951). Such an approach is justified by asymptotic analysis of the pressure change relative to a uniform initial pressure distribution. However, in reality, such an initial condition may not hold true because the operations preceding the test make the pressure distribution not uniform. It has been demonstrated in Silin and Tsang (2002, 2003) that in the Horner plot method, this circumstance partially explains the …
Date: May 21, 2003
Creator: Silin, Dmitry; Tsang, Chin-Fu & Gerrish, Harlan
Object Type: Article
System: The UNT Digital Library