UNT Libraries Government Documents Department - 445 Matching Results

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open access

2-D Finite Element Cable and Box IEMP Analysis

Description: A 2-D finite element code has been developed for the solution of arbitrary geometry cable SGEMP and box IEMP problems. The quasi- static electric field equations with radiation- induced charge deposition and radiation-induced conductivity y are numerically solved on a triangular mesh. Multiple regions of different dielectric materials and multiple conductors are permitted.
Date: December 17, 1998
Creator: Scivner, G.J. & Turner, C.D.
open access

21-PWR WASTE PACKAGE WITH ABSORBER PLATES LOADING CURVE EVALUATION

Description: The objective of this calculation is to evaluate the required minimum burnup as a function of initial pressurized water reactor (PWR) assembly enrichment that would permit loading of spent nuclear fuel into the 21 PWR waste package with absorber plates design as provided in Attachment IV. This calculation is an example of the application of the methodology presented in the ''Disposal Criticality Analysis Methodology Topical Report'' (YMP 2003). The scope of this calculation covers a range of en… more
Date: December 17, 2004
Creator: Scaglione, J.M.
open access

12th Annual ALS Users' Association Meeting

Description: Science took the front seat as 219 Advanced Light Source (ALS) users and staff gathered on Monday and Tuesday, October 18 and 19 for the twelfth annual users' meeting. The bulk of the meeting was dedicated to reports on science at the ALS. Packed into two busy days were 31 invited oral presentations and 80 submitted poster presentations, as well as time to visit 24 vendor booths. The oral sessions were dedicated to environmental science, chemical dynamics, biosciences, magnetic materials, and a… more
Date: December 17, 1999
Creator: Robinson, Arthur L.
open access

1972-1997, Twenty-five years of energy and environmental history : lessons learned.

Description: Given the events of the past 25 years concerning energy and environmental issues and our reaction to them, what lessons can we learn? First, the individual American consumer wants and expects energy to be a stable commodity with low prices and easy availability. As evidenced by the heated debate over increasing the federal gasoline tax by $.05 per gallon (which would still leave Americans paying only one-third of what Europeans pay for gasoline), increases in energy prices elicit very strong pu… more
Date: December 17, 1997
Creator: Drucker, H.
open access

2006 National Ambient Air Quality Standards (NAAQS) for Fine Particulate Matter (PM2.5): Designating Nonattainment Areas

Description: This report summarizes and describes the EPA's (Environmental Protection Agency) final revisions to the NAAQS (National Ambient Air Quality Standards). The summary also explores how the revisions are contentious in certain areas that may not be meeting those standards which materializes as congressional oversight.
Date: December 17, 2009
Creator: Esworthy, Robert
open access

Actinide Sorption in Rainier Mesa Tunnel Waters from the Nevada Test Site

Description: The sorption behavior of americium (Am), plutonium (Pu), neptunium (Np), and uranium (U) in perched Rainier Mesa tunnel water was investigated. Both volcanic zeolitized tuff samples and groundwater samples were collected from Rainier Mesa, Nevada Test Site, NV for a series of batch sorption experiments. Sorption in groundwater with and without the presence of dissolved organic matter (DOM) was investigated. Am(III) and Pu(IV) are more soluble in groundwater that has high concentrations of DOM. … more
Date: December 17, 2007
Creator: Zhao, P.; Zavarin, M.; Leif, R.; Powell, B.; Singleton, M.; Lindvall, R. et al.
open access

Ad Hoc Query Support For Very Large Simulation Mesh Data: The Metadata Approach

Description: We present our approach to enabling approximate ad hoc queries on terabyte-scale mesh data generated from large scientific simulations through the extension and integration of database, statistical, and data mining techniques. There are several significant barriers to overcome in achieving this objective. First, large-scale simulation data is already at the multi-terabyte scale and growing quickly, thus rendering traditional forms of interactive data exploration and query processing untenable. … more
Date: December 17, 2001
Creator: Lee, B; Snapp, R; Musick, R & Critchlow, T
open access

Advanced Reservoir Characterization and Evaluation of CO{sub 2} Gravity Drainage in the Naturally Fractured Spraberry Trend Area. First Annual Technical Progress Report, September 1, 1995--August 31, 1996

Description: The overall goal of this project is to assess the economic feasibility of CO{sub 2} flooding the naturally fractured Spraberry Trend Area in West Texas. This objective is being accomplished by conducting research in four areas: (1) extensive characterization of the reservoirs, (2) experimental studies of crude oil/brine/rock (COBR) interaction in the reservoirs, (3) analytical and numerical simulation of Spraberry reservoirs, and, (4) experimental investigations on CO{sub 2} gravity drainage in… more
Date: December 17, 1996
Creator: Schechter, D. S.
open access

Advanced Reservoir Characterization and Evaluation of CO2 Gravity Drainage in the Naturally Fractured Spraberry Reservoir

Description: Natural fractures exert a strong influence over oil production in Spraberry Trend Area reservoirs in the Permian Basin of west Texas. The importance of the fracture network has been known since the 1950s, but until recently, there has been very little detailed study of the fractures themselves. In 1996, a horizontal Spraberry well was cored as part of a DOE Class III Field Demonstration Project. Fractures from the horizontal core as well as other fractures encountered in vertical Spraberry core… more
Date: December 17, 1997
Creator: Schechter, David S.
open access

Advanced Vehicle Technologies: Energy, Environment, and Development Issues

Description: This report discusses four major vehicle technologies — electric vehicles, hybrid electric vehicles, plug-in hybrids, and fuel cell vehicles — as well as advanced component technologies. Each technology is discussed in terms of cost, fueling and maintenance infrastructure, and performance.
Date: December 17, 2004
Creator: Yacobucci, Brent D.
open access

The Aeolotropic Elastic Relations for Uranium Crystals

Description: Handwritten report. This theoretical introduction to the anisotropic elastic properties of the orthorombic [sic] uranium crystal presents certain basic ideas which are useful in the study of experimental methods for determining preferred orientations in polycrystalline bodies. The method of analysis used to determine the elastic constants suggests explanations and correlations for the observations of sonic wave experiments on bars having preferred orientations and also serves as an introduction… more
Date: December 17, 1954
Creator: Merckx, K. R.
open access

Agent Orange: Actions Needed to Improve Communications of Air Force Ranch Hand Study Data and Results

Description: A letter report issued by the General Accounting Office with an abstract that begins "Pursuant to a congressional request, GAO examined the conduct and findings of the Air Force's Ranch Hand study on the long-term health effects of exposure to herbicides, such as Agent Orange, in Vietnam, and assessed the study's impact on determinations of veterans' compensation, focusing on: (1) whether the study's findings and data have been properly and promptly reported and disseminated; (2) the statistica… more
Date: December 17, 1999
Creator: United States. General Accounting Office.
open access

The Air Force Aviation Investment Challenge

Description: This report discusses the U.S. Air force's ambition to update their aviation fleet. Specifically, the report examines four major programs that are currently achieving this process. The report also details a list of solutions that may help the Air force meet its modernization requirements.
Date: December 17, 2015
Creator: Gertler, Jeremiah
open access

ALARA{trademark} 1146 strippable coating

Description: Strippable or temporary coatings are innovative technologies for decontamination that effectively reduce loose contamination at low cost. These coatings have become a viable option during the deactivation and decommissioning of both US Department of Energy (DOE) and commercial nuclear facilities to remove or fix loose contamination on both vertical and horizontal surfaces. The ALARA{trademark} 1146 strippable coating was demonstrated as part of the Savannah River Site LSDDP and successfully rem… more
Date: December 17, 1999
Creator: Fricke, V.
open access

American Samoa: Accountability for Key Federal Grants Needs Improvement

Description: A letter report issued by the Government Accountability Office with an abstract that begins "American Samoa, a U.S. territory, relies on federal funding to support government operations and deliver critical services. The Secretary of the Interior has administrative responsibility for coordinating federal policy in the territory. Under the Single Audit Act of 1996, American Samoa is required to perform a yearly single audit of federal grants and other awards to ensure accountability. To better u… more
Date: December 17, 2004
Creator: United States. Government Accountability Office.
open access

Ammonia emission inventory for the state of Wyoming

Description: Ammonia (NH{sub 3}) is the only significant gaseous base in the atmosphere and it has a variety of impacts as an atmospheric pollutant, including the formation of secondary aerosol particles: ammonium sulfate and ammonium nitrate. NH{sub 3} preferentially forms ammonium sulfate; consequently ammonium nitrate aerosol formation may be limited by the availability of NH{sub 3}. Understanding the impact of emissions of oxides of sulfur and nitrogen on visibility, therefore, requires accurately deter… more
Date: December 17, 2003
Creator: Kirchstetter, Thomas W.; Maser, Colette R. & Brown, Nancy J.
open access

Amplitude and phase modulation with waveguide optics

Description: We have developed amplitude and phase modulation systems for glass lasers using integrated electro-optic modulators and solid state high- speed electronics. The present and future generation of lasers for Inertial Confinement Fusion require laser beams with complex temporal and phase shaping to compensate for laser gain saturation, mitigate parametric processes such as transverse stimulated Brillouin scattering in optics, and to provide specialized drive to the fusion targets. These functions c… more
Date: December 17, 1996
Creator: Burkhart, S. C.; Wilcox, R. B.; Browning, D. & Penko, F. A.
open access

Application of Damage Detection Techniques Using Wind Turbine Modal Data

Description: As any structure ages, its structural characteristics will also change. The goal of this work was to determine if modal response data fkom a wind turbine could be used in the detection of damage. The input stimuli to the wind turbine were from traditional modal hammer input and natural wind excitation. The structural response data was acquired using accelerometers mounted on the rotor of a parked and undamaged horizontal-axis wind turbine. The bolts at the root of one of the three blades were t… more
Date: December 17, 1998
Creator: Gross, E.; Rumsey, M.; Simmermacher, T. & Zadoks, R.I.
open access

Appropriate Methodology for Assessing the Economic Development Impacts of Wind Power

Description: OAK-B135 Interest in wind power development is growing as a means of expanding local economies. Such development holds promise as a provider of short-term employment during facility construction and long-term employment from ongoing facility operation and maintenance. It may also support some expansion of the local economy through ripple effects resulting from initial increases in jobs and income. However, there is a need for a theoretically sound method for assessing the economic impacts of wi… more
Date: December 17, 2003
Creator: Group, NWCC Economic Development Work
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