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1 Outreach, Education and Domestic Market Enhancement 2 Export Promotion and Assistance (open access)

1 Outreach, Education and Domestic Market Enhancement 2 Export Promotion and Assistance

Geothermal Energy Association supports the US geothermal industry in its efforts to bring more clean geothermal energy on-line throughout the world. Activities designed to accomplish this goal include: (1) developing and maintaining data bases, web pages, (2) commissioning of special studies and reports, (3) preparing, printing and distributing brochures and newsletters, (4) developing exhibits and displays, and participating in trade shows, (5) designing, producing and disseminating audio-video materials, (6) monitoring and coordinating programs carried out by US DOE and other Federal agencies, (7) holding workshops to facilitate communication between researchers and industry and to encourage their recognition of emerging markets for geothermal technology, (8) attending conferences, making speeches and presentation, and otherwise interacting with environmental and other renewable energy organizations and coalitions, (9) hosting events in Washington, DC and other appropriate locations to educate Federal, State and local representatives, environmental groups, the news media, and other about the status and potential of geothermal energy, (10) conducting member services such as the preparation and distribution of a member newsletter related to operating and maintaining s useful and viable association, and (11) performing similar kinds of activities designed to inform others about geothermal energy. The activities of the export promotion aim to …
Date: March 15, 2004
Creator: Geothermal Energy Association
System: The UNT Digital Library
9/11 Terrorism: Global Economic Costs (open access)

9/11 Terrorism: Global Economic Costs

This report provides a brief survey of the global economic costs of 9/11.
Date: September 15, 2004
Creator: Nanto, Dick K.
System: The UNT Digital Library
A 20-year data set of surface longwave fluxes in the Arctic (open access)

A 20-year data set of surface longwave fluxes in the Arctic

Creation of 20-year data set of surface infrared fluxes from satellite measurements. A reliable estimate of the surface downwelling longwave radiation flux (DLF) is a glaring void in available forcing data sets for models of Arctic sea ice and ocean circulation. We have developed a new method to estimate the DLF from a combination of satellite sounder retrievals and brightness temperatures from the TIROS Operational Vertical Sounder (TOVS), which has flown on NOAA polar-orbiting satellites continuously since late 1979. The overarching goal of this project was to generate a 20-year data set of surface downwelling longwave flux measurements from TOVS data over the Arctic Ocean. Daily gridded fields of DLF were produced with a spatial resolution of (100 km){sup 2} north of 60{sup o}N for 22.5 years rather than only 20. Surface measurements from the field station at Barrow, AK--part of the Atmospheric Radiation Measurement (ARM) Program --and from the Surface Heat Budget of the Arctic (SHEBA) were used to validate the satellite-derived fluxes and develop algorithm improvements for conditions that had resulted in systematic errors in early versions of the algorithm. The resulting data set has already been sent to two other investigators for incorporation into their research, and …
Date: June 15, 2004
Creator: Francis, Jennifer
System: The UNT Digital Library
2003 Toxic Chemical Release Inventory Report for the Emergency Planning and Community Right-to-Know Act of 1986, Title III, Section 313 (open access)
2010 Census: Cost and Design Issues Need to Be Addressed Soon (open access)

2010 Census: Cost and Design Issues Need to Be Addressed Soon

A letter report issued by the General Accounting Office with an abstract that begins "The key to a successful census is meticulous planning as it helps ensure greater cost-effectiveness. However, the 2000 and previous censuses have been marked by poor planning, which unnecessarily raised the costs and risks of those efforts. GAO was asked to (1) review the U.S. Census Bureau's (Bureau) current plans for 2010 and whether they might address shortcomings of the 2000 Census, (2) analyze the Bureau's cost estimates, and (3) review the rigor of the Bureau's 2010 planning process."
Date: January 15, 2004
Creator: United States. General Accounting Office.
System: The UNT Digital Library
Accounting Reform After Enron: Issues in the 108th Congress (open access)

Accounting Reform After Enron: Issues in the 108th Congress

This report discusses the anxieties within Congress in the wake of the Enron scandal. Moreover, the report notes that the 108th Congress is not likely to pass legislative reform as extreme as the 107th Congress, but will still confront issues of accounting reform. The report also highlights what the 108th Congress plans to reform.
Date: September 15, 2004
Creator: Jickling, Mark
System: The UNT Digital Library
Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors (Workshop Report) (open access)

Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors (Workshop Report)

The ''Workshop on Advanced Computational Materials Science: Application to Fusion and Generation IV Fission Reactors'' was convened to determine the degree to which an increased effort in modeling and simulation could help bridge the gap between the data that is needed to support the implementation of these advanced nuclear technologies and the data that can be obtained in available experimental facilities. The need to develop materials capable of performing in the severe operating environments expected in fusion and fission (Generation IV) reactors represents a significant challenge in materials science. There is a range of potential Gen-IV fission reactor design concepts and each concept has its own unique demands. Improved economic performance is a major goal of the Gen-IV designs. As a result, most designs call for significantly higher operating temperatures than the current generation of LWRs to obtain higher thermal efficiency. In many cases, the desired operating temperatures rule out the use of the structural alloys employed today. The very high operating temperature (up to 1000 C) associated with the NGNP is a prime example of an attractive new system that will require the development of new structural materials. Fusion power plants represent an even greater challenge to structural materials …
Date: July 15, 2004
Creator: Stoller, RE
System: The UNT Digital Library
Affirmative Action Revisited: A Legal History and Prospectus (open access)

Affirmative Action Revisited: A Legal History and Prospectus

Affirmative action remains a focal point of public debate as the result of legal and political developments at the federal, state, and local levels. This report discusses legislation related to affirmative action, as well as legal rulings on the topic and the federal government's role in first establishing and, later, attempting to curb affirmative action policies.
Date: December 15, 2004
Creator: Dale, Charles V.
System: The UNT Digital Library
Affordable Window Insulation with R-10/inch Rating (open access)

Affordable Window Insulation with R-10/inch Rating

During the performance of contract DE-FC26-00-NT40998, entitled ''Affordable Window Insulation with R-10/inch Value'', research was conducted at Aspen Aerogels, Inc. to develop new transparent aerogel materials suitable for window insulation applications. The project requirements were to develop a formulation or multiple formulations that have high transparency (85-90%) in the visible region, are hydrophobic (will not opacify with exposure to water vapor or liquid), and have at least 2% resiliency (interpreted as recoverable 2% strain and better than 5% strain to failure in compression). Results from an unrelated project showed that silica aerogels covalently bonded to organic polymers exhibit excellent mechanical properties. At the outset of this project, we believed that such a route is the best to improve mechanical properties. We have applied Design of Experiment (DOE) techniques to optimize formulations including both silica aerogels and organically modified silica aerogels (''Ormosils''). We used these DOE results to optimize formulations around the local/global optimization points. This report documents that we succeeded in developing a number of formulations that meet all of the stated criteria. We successfully developed formulations utilizing a two-step approach where the first step involves acid catalyzed hydrolysis and the second step involves base catalyzed condensation to make the …
Date: October 15, 2004
Creator: Begag, Jenifer Marchesi Redouane; Lee, Je Kyun; Ou, Danny; Sonn, Jong Ho; Gould, George & Rhine, Wendell
System: The UNT Digital Library
Afghanistan: Post-War Governance, Security, and U.S. Policy (open access)

Afghanistan: Post-War Governance, Security, and U.S. Policy

This report discusses the historical and current political stability of Afghanistan. Detailed in the report is a description of the limited operations of Al Qaeda within Afghanistan. The report also describes that the primary goal of the U.S. military within the region is to create stability.
Date: June 15, 2004
Creator: Katzman, Kenneth
System: The UNT Digital Library
Air Pollution Emission Control: Existing Technologies and Mercury Cobenefits (open access)

Air Pollution Emission Control: Existing Technologies and Mercury Cobenefits

This report considers the Environmental Protection Agency's (EPA) use of stationary sources to reduce air pollutant emissions. Specifically, when these technologies reduce pollutants that they were not necessarily designed for which creates cobenefits.
Date: September 15, 2004
Creator: Shea, Dana A.
System: The UNT Digital Library
Alternative Conceptual Model for Colloid Generation from Commercial Spent Nuclear Fuel (open access)

Alternative Conceptual Model for Colloid Generation from Commercial Spent Nuclear Fuel

Colloids have the potential to transport strongly sorbing radionuclide contaminants in soils and groundwater aquifers. Recent studies from the Nevada Test Site have indicated the enhanced mobility plutonium, albeit in minute quantities, associated with various silicate minerals (Kersting et al., 1999); however, significant colloidal transport of thorium (Th) and rare earths (RE) in nature, considered to be chemical analogs for plutonium, is rare. Yet, the current Yucca Mountain model for colloids would have predicted extensive Th- and RE migration, given these phases' association with clay minerals. Several studies have pointed to the effect of water flow rate on colloid and particulate migration. In this paper, we examine the benefit of relating water flow rate and the wasteform alteration structure to colloid release.
Date: February 15, 2004
Creator: Buck, Edgar C.; McNamara, Bruce K. & Hanson, Brady D.
System: The UNT Digital Library
The Alternative Minimum Tax for Individuals (open access)

The Alternative Minimum Tax for Individuals

This report consists of the alternative minimum tax for individuals.,
Date: November 15, 2004
Creator: Esenwein, Gregg A.
System: The UNT Digital Library
Analysis of IECC2003 Chiller Heat Recovery for Service Water Heating Requirement for New York State (open access)

Analysis of IECC2003 Chiller Heat Recovery for Service Water Heating Requirement for New York State

The state of New York asked the U.S. Department of Energy to evaluate the cost-effectiveness of the requirement for Heat Recovery for Service Water Heating that exists in the 2003 International Energy Conservation Code to determine whether this requirement should be adopted into the New York State Energy Code. A typical hotel application that would trigger this requirement was examined using whole building simulation software to generate baseline annual chiller and service hot water loads, and a spreadsheet was used to examine the energy savings potential for heat recovery using hourly load files from the simulation. An example application meeting the code requirement was developed, and the energy savings, energy cost savings, and first costs for the heat recovery installation were developed. The calculated payback for this application was 6.3 years using 2002 New York state average energy costs. This payback met the minimum requirements for cost effectiveness established for the state of New York for updating the commercial energy conservation code.
Date: August 15, 2004
Creator: Winiarski, David W.
System: The UNT Digital Library
Analytic Expressions for the Angular Resolution of Compton Gamma-ray Detectors (open access)

Analytic Expressions for the Angular Resolution of Compton Gamma-ray Detectors

This paper describes the derivation of analytic expressions for the angular resolution of reconstructing gamma rays detected via Compton interactions. We consider two types of gamma-ray detectors: Compton-ring and electron-tracking devices. In Compton-ring devices, the direction of the scattered electron is not resolved, only the total energy (electron and scattered photon) and the scattered photon direction are measured. The measured quantities define a cone about the axis of the scattered photon direction. The initial photon direction lies along this cone. Thus for single events there is a ring-like ambiguity in the photon direction. By combining multiple events, the intersection of the reconstructed rings will resolve the initial direction of the photon source. In this paper, we derive the resolution of the cone angle for individual rings. Electron-tracking type devices resolve the electron path. Although the scattered electron subsequently undergoes multiple-Coulomb scattering, it is possible to measure the initial electron direction with sufficiently high tracking resolution. By measuring the direction and energy of the electron and the direction of the scattered photon, the initial photon direction can be uniquely determined. The challenge for this type of detector is achieving the high tracking resolution. In Section 2 we derive the well-known Compton …
Date: January 15, 2004
Creator: Wright, D M
System: The UNT Digital Library
Appropriations for FY2005: Military Construction (open access)

Appropriations for FY2005: Military Construction

This report is a guide to appropriations of Military Construction for FY2005.
Date: November 15, 2004
Creator: Else, Daniel H.
System: The UNT Digital Library
Appropriations for FY2005: U.S. Department of Agriculture and Related Agencies (open access)

Appropriations for FY2005: 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: July 15, 2004
Creator: Chite, Ralph M.
System: The UNT Digital Library
An Archaeological Survey Within the Deer Creek Estates, Tarrant County, Texas (open access)

An Archaeological Survey Within the Deer Creek Estates, Tarrant County, Texas

An archaeological survey report of a site in the the Deer Creek Estates, Tarrant County, Texas, performed to determine whether any historic resources were located on the proposed construction sites.
Date: November 15, 2004
Creator: Todd, Jesse
System: The Portal to Texas History
Assistance to Firefighters Program: Distribution of Fire Grant Funding (open access)

Assistance to Firefighters Program: Distribution of Fire Grant Funding

The report is categorized into eight categories: (I) Background, (II) FY2001 Grants, (III) FY 2002 Grants,(IV) FY 2003 Grants, (V) FY 2004 Grants, (VI) Program Evaluation, (VII) Distribution of Fire Grants and (VIII) Activities in the 108th Congress.
Date: July 15, 2004
Creator: Kruger, Lennard G.
System: The UNT Digital Library
An Automated System for Measuring Microphysical and Radiative Cloud Characteristics from a Tethered Balloon (open access)

An Automated System for Measuring Microphysical and Radiative Cloud Characteristics from a Tethered Balloon

OAK-B135 The rate of climate change in polar regions is now felt to be a harbinger of possible global warming. Long-lived, relatively thin stratus clouds play a predominant role in transmitting solar radiation and trapping long wave radiation emitted from open water and melt ponds. In situ measurements of microphysical and radiative properties of Arctic and Antarctic stratus clouds are needed to validate retrievals from remote measurements and simulations using numerical models. While research aircraft can collect comprehensive microphysical and radiative data in clouds, the duration of these aircraft is relatively short (up to about 12 hours). During the course of the Phase II research, a tethered balloon system was developed that supports miniaturized meteorological, microphysical and radiation sensors that can collect data in stratus clouds for days at a time. The tethered balloon system uses a 43 cubic meter balloon to loft a 17 kg sensor package to altitudes u p to 2 km. Power is supplied to the instrument package via two copper conductors in the custom tether. Meteorological, microphysical and radiation data are recorded by the sensor package. Meteorological measurements include pressure, temperature, humidity, wind speed and wind direction. Radiation measurements are made using a 4-pi radiometer …
Date: March 15, 2004
Creator: Lawson, Dr. Paul
System: The UNT Digital Library
Automating Shallow Seismic Imaging (open access)

Automating Shallow Seismic Imaging

This report covers a one-year, no-cost extension that was requested and received in 2003; the extension runs through September 14, 2004. The extension has been used to continue data analysis and prepare additional manuscripts for submission to refereed journals. The primary research focus of the original three-year period of funding was to develop and demonstrate an automated method of conducting two-dimensional (2D) shallow-seismic surveys with the goal of saving time, effort, and money. Tests involving the second generation of the hydraulic geophone-planting device dubbed the ''Autojuggie'' showed that large numbers of geophones can be placed quickly and automatically and can acquire high-quality data, although not under all conditions (please see the Status and Results of Experiments sections for details). In some easy-access environments, this device could make shallow seismic surveying considerably more efficient and less expensive. The most recent research analyzed the difference in seismic response of the geophones with variable geophone spike length and geophones attached to various steel media. Experiments investigated the azimuthal dependence of the quality of data relative to the orientation of the rigidly attached geophones. Other experiments designed to test the hypothesis that the data are being amplified in much the same way that an …
Date: June 15, 2004
Creator: Steeples, Don W.
System: The UNT Digital Library
Benson Beach Demonstration Project: Composition and Abundance of Biota at Three Alternative Sump Sites (open access)

Benson Beach Demonstration Project: Composition and Abundance of Biota at Three Alternative Sump Sites

The Portland District of the U.S. Army Corps of Engineers is investigating plans to provide sediment to nourish beaches north of the Mouth of the Columbia River (MCR). Under the currently designed proposal, sediment dredged from the MCR will be temporarily stored at one of three proposed areas south of the North Jetty before being redredged and moved by a cutterhead pipeline dredge over the jetty to nourish Benson Beach. Resulting potential impacts to resident Dungeness crab (Cancer magister) and fishes represent one of the criteria for evaluating each of the alternative locations. To establish the species composition and relative abundance of crabs and fishes associated with each of the three proposed sump areas, researchers from the Pacific Northwest National Laboratory Marine Sciences Division completed nine field sampling trips from July 8, 2003, to November 1, 2003, for a total of 113 successful trawls comprising an area of over 7.4 ha (74,156 m2). This report documents the results of that effort. To understand the relative risk of losses to crab populations associated with dredging impacts at the sump alternative areas, it is recommended that a modified dredge impact model be developed using the data collected in this study. This model …
Date: January 15, 2004
Creator: Williams, Greg D.; Pearson, Walter H.; Evans, Nathan R. & Anderson, Michael G.
System: The UNT Digital Library
Biological treatment of concentrated hazardous, toxic, andradionuclide mixed wastes without dilution (open access)

Biological treatment of concentrated hazardous, toxic, andradionuclide mixed wastes without dilution

Approximately 10 percent of all radioactive wastes produced in the U. S. are mixed with hazardous or toxic chemicals and therefore can not be placed in secure land disposal facilities. Mixed wastes containing hazardous organic chemicals are often incinerated, but volatile radioactive elements are released directly into the biosphere. Some mixed wastes do not currently have any identified disposal option and are stored locally awaiting new developments. Biological treatment has been proposed as a potentially safer alternative to incineration for the treatment of hazardous organic mixed wastes, since biological treatment would not release volatile radioisotopes and the residual low-level radioactive waste would no longer be restricted from land disposal. Prior studies have shown that toxicity associated with acetonitrile is a significant limiting factor for the application of biotreatment to mixed wastes and excessive dilution was required to avoid inhibition of biological treatment. In this study, we demonstrate that a novel reactor configuration, where the concentrated toxic waste is drip-fed into a complete-mix bioreactor containing a pre-concentrated active microbial population, can be used to treat a surrogate acetonitrile mixed waste stream without excessive dilution. Using a drip-feed bioreactor, we were able to treat a 90,000 mg/L acetonitrile solution to less than …
Date: June 15, 2004
Creator: Stringfellow, William T.; Komada, Tatsuyuki & Chang, Li-Yang
System: The UNT Digital Library
Biosphere dose conversion Factor Importance and Sensitivity Analysis (open access)

Biosphere dose conversion Factor Importance and Sensitivity Analysis

This report presents importance and sensitivity analysis for the environmental radiation model for Yucca Mountain, Nevada (ERMYN). ERMYN is a biosphere model supporting the total system performance assessment (TSPA) for the license application (LA) for the Yucca Mountain repository. This analysis concerns the output of the model, biosphere dose conversion factors (BDCFs) for the groundwater, and the volcanic ash exposure scenarios. It identifies important processes and parameters that influence the BDCF values and distributions, enhances understanding of the relative importance of the physical and environmental processes on the outcome of the biosphere model, includes a detailed pathway analysis for key radionuclides, and evaluates the appropriateness of selected parameter values that are not site-specific or have large uncertainty.
Date: October 15, 2004
Creator: Wasiolek, M.
System: The UNT Digital Library