America COMPETES Acts: FY2008-FY2013 Funding Tables (open access)

America COMPETES Acts: FY2008-FY2013 Funding Tables

This report discusses major provisions of the America COMPETES Reauthorization Act of 2010 that are set to expire in 2013. This report has been updated to reflect FY2013 enacted funding levels--as contained in P.L. 113- 6 (Consolidated and Further Continuing Appropriations Act, 2013)--for specified COMPETES related accounts.
Date: April 15, 2013
Creator: Gonzalez, Heather B.
Object Type: Report
System: The UNT Digital Library
Argentina's Post-Crisis Economic Reform: Challenges for U.S. Policy (open access)

Argentina's Post-Crisis Economic Reform: Challenges for U.S. Policy

This report provides a framework for understanding Argentina's economic policies, issues raised for U.S. stakeholders, and implications for the future of U.S.-Argentine economic relations.
Date: April 15, 2013
Creator: Hornbeck, J. F.
Object Type: Report
System: The UNT Digital Library
Basis Light-Front Quantization: A New Approach to Nonperturbative Scattering and Time-Dependent Production Processes (open access)

Basis Light-Front Quantization: A New Approach to Nonperturbative Scattering and Time-Dependent Production Processes

None
Date: April 15, 2013
Creator: Vary, James P.; Zhao, Xingbo; Ilderton, Anton; Maris, Pieter & Brodsky, Stanley J.
Object Type: Article
System: The UNT Digital Library
Collaborative Proposal: Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach (open access)

Collaborative Proposal: Transforming How Climate System Models are Used: A Global, Multi-Resolution Approach

Despite the great interest in regional modeling for both weather and climate applications, regional modeling is not yet at the stage that it can be used routinely and effectively for climate modeling of the ocean. The overarching goal of this project is to transform how climate models are used by developing and implementing a robust, efficient, and accurate global approach to regional ocean modeling. To achieve this goal, we will use theoretical and computational means to resolve several basic modeling and algorithmic issues. The first task is to develop techniques for transitioning between parameterized and high-fidelity regional ocean models as the discretization grid transitions from coarse to fine regions. The second task is to develop estimates for the error in scientifically relevant quantities of interest that provide a systematic way to automatically determine where refinement is needed in order to obtain accurate simulations of dynamic and tracer transport in regional ocean models. The third task is to develop efficient, accurate, and robust time-stepping schemes for variable spatial resolution discretizations used in regional ocean models of dynamics and tracer transport. The fourth task is to develop frequency-dependent eddy viscosity finite element and discontinuous Galerkin methods and study their performance and effectiveness …
Date: April 15, 2013
Creator: Estep, Donald
Object Type: Report
System: The UNT Digital Library
Creation of an Enhanced Geothermal System through Hydraulic and Thermal Stimulation (open access)

Creation of an Enhanced Geothermal System through Hydraulic and Thermal Stimulation

This report describes a 10-year DOE-funded project to design, characterize and create an Engineered Geothermal System (EGS) through a combination of hydraulic, thermal and chemical stimulation techniques. Volume 1 describes a four-year Phase 1 campaign, which focused on the east compartment of the Coso geothermal field. It includes a description of the geomechanical, geophysical, hydraulic, and geochemical studies that were conducted to characterize the reservoir in anticipation of the hydraulic stimulation experiment. Phase 1 ended prematurely when the drill bit intersected a very permeable fault zone during the redrilling of target stimulation well 34-9RD2. A hydraulic stimulation was inadvertently achieved, however, since the flow of drill mud from the well into the formation created an earthquake swarm near the wellbore that was recorded, located, analyzed and interpreted by project seismologists. Upon completion of Phase 1, the project shifted focus to a new target well, which was located within the southwest compartment of the Coso geothermal field. Volume 2 describes the Phase 2 studies on the geomechanical, geophysical, hydraulic, and geochemical aspects of the reservoir in and around target-stimulation well 46A-19RD, which is the deepest and hottest well ever drilled at Coso. Its total measured depth exceeding 12,000 ft. It spite …
Date: April 15, 2013
Creator: Rose, Peter Eugene
Object Type: Report
System: The UNT Digital Library
Creation of an Enhanced Geothermal System through Hydraulic and Thermal Stimulation (open access)

Creation of an Enhanced Geothermal System through Hydraulic and Thermal Stimulation

This report describes a 10-year DOE-funded project to design, characterize and create an Engineered Geothermal System (EGS) through a combination of hydraulic, thermal and chemical stimulation techniques. Volume 1 describes a four-year Phase 1 campaign, which focused on the east compartment of the Coso geothermal field. It includes a description of the geomechanical, geophysical, hydraulic, and geochemical studies that were conducted to characterize the reservoir in anticipation of the hydraulic stimulation experiment. Phase 1 ended prematurely when the drill bit intersected a very permeable fault zone during the redrilling of target stimulation well 34-9RD2. A hydraulic stimulation was inadvertently achieved, however, since the flow of drill mud from the well into the formation created an earthquake swarm near the wellbore that was recorded, located, analyzed and interpreted by project seismologists. Upon completion of Phase 1, the project shifted focus to a new target well, which was located within the southwest compartment of the Coso geothermal field. Volume 2 describes the Phase 2 studies on the geomechanical, geophysical, hydraulic, and geochemical aspects of the reservoir in and around target-stimulation well 46A-19RD, which is the deepest and hottest well ever drilled at Coso. Its total measured depth exceeding 12,000 ft. It spite …
Date: April 15, 2013
Creator: Rose, Peter Eugene
Object Type: Report
System: The UNT Digital Library
DISTRIBUTION OF LANTHANIDE AND ACTINIDE ELEMENTS BETWEEN BIS-(2-ETHYLHEXYL)PHOSPHORIC ACID AND BUFFERED LACTATE SOLUTIONS CONTAINING SELECTED COMPLEXANTS (open access)

DISTRIBUTION OF LANTHANIDE AND ACTINIDE ELEMENTS BETWEEN BIS-(2-ETHYLHEXYL)PHOSPHORIC ACID AND BUFFERED LACTATE SOLUTIONS CONTAINING SELECTED COMPLEXANTS

With the renewed interest in the closure of the nuclear fuel cycle, the TALSPEAK process is being considered for the separation of Am and Cm from the lanthanide fission products in a next generation reprocessing plant. However, an efficient separation requires tight control of the pH which likely will be difficult to achieve on a large scale. To address this issue, we measured the distribution of lanthanide and actinide elements between aqueous and organic phases in the presence of complexants which were potentially less sensitive to pH control than the diethylenetriaminepentaacetic (DTPA) used in the process. To perform the extractions, a rapid and accurate method was developed for measuring distribution coefficients based on the preparation of lanthanide tracers in the Savannah River National Laboratory neutron activation analysis facility. The complexants tested included aceto-, benzo-, and salicylhydroxamic acids, N,N,N',N'-tetrakis(2-pyridylmethyl)ethylenediamine (TPEN), and ammonium thiocyanate (NH{sub 4}SCN). The hydroxamic acids were the least effective of the complexants tested. The separation factors for TPEN and NH{sub 4}SCN were higher, especially for the heaviest lanthanides in the series; however, no conditions were identified which resulted in separations factors which consistently approached those measured for the use of DTPA.
Date: April 15, 2013
Creator: Rudisill, Tracy S.; Diprete, David P. & Thompson, Major C.
Object Type: Article
System: The UNT Digital Library
DOE Computer Graphics Forum 2013 Site Survey (open access)

DOE Computer Graphics Forum 2013 Site Survey

None
Date: April 15, 2013
Creator: Brugger, E S; Springmeyer, R R & Laney, D E
Object Type: Report
System: The UNT Digital Library
Electric Field Generated by Transition Radiation of a Short Bunch (open access)

Electric Field Generated by Transition Radiation of a Short Bunch

None
Date: April 15, 2013
Creator: Stupakov, G.
Object Type: Report
System: The UNT Digital Library
Final Harvest of Above-Ground Biomass and Allometric Analysis of the Aspen FACE Experiment (open access)

Final Harvest of Above-Ground Biomass and Allometric Analysis of the Aspen FACE Experiment

The Aspen FACE experiment, located at the US Forest Service Harshaw Research Facility in Oneida County, Wisconsin, exposes the intact canopies of model trembling aspen forests to increased concentrations of atmospheric CO2 and O3. The first full year of treatments was 1998 and final year of elevated CO2 and O3 treatments is scheduled for 2009. This proposal is to conduct an intensive, analytical harvest of the above-ground parts of 24 trees from each of the 12, 30 m diameter treatment plots (total of 288 trees) during June, July & August 2009. This above-ground harvest will be carefully coordinated with the below-ground harvest proposed by D.F. Karnosky et al. (2008 proposal to DOE). We propose to dissect harvested trees according to annual height growth increment and organ (main stem, branch orders, and leaves) for calculation of above-ground biomass production and allometric comparisons among aspen clones, species, and treatments. Additionally, we will collect fine root samples for DNA fingerprinting to quantify biomass production of individual aspen clones. This work will produce a thorough characterization of above-ground tree and stand growth and allocation above ground, and, in conjunction with the below ground harvest, total tree and stand biomass production, allocation, and allometry.
Date: April 15, 2013
Creator: Kubiske, Mark E.
Object Type: Report
System: The UNT Digital Library
Final Report on ``Theories of Strong Electron Correlations in Molecules and Solids’’ - DE-FG02-97ER45640 (open access)

Final Report on ``Theories of Strong Electron Correlations in Molecules and Solids’’ - DE-FG02-97ER45640

The PI led theoretical studies of correlated hybridization in transition metal complexes, compounds, and molecules, and of electron transport in DNA associated with nanoelectronic conformations attached to gold electrodes and in the presence of DNA repair proteins.
Date: April 15, 2013
Creator: Cox, Daniel L.
Object Type: Report
System: The UNT Digital Library
Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to Unconfined and Confined Aquifers (open access)

Geochemical Impacts of Leaking CO2 from Subsurface Storage Reservoirs to Unconfined and Confined Aquifers

Experimental research work has been conducted and is undergoing at Pacific Northwest National Laboratory (PNNL) to address a variety of scientific issues related with the potential leaks of the carbon dioxide (CO2) gas from deep storage reservoirs. The main objectives of this work are as follows: • Develop a systematic understanding of how CO2 leakage is likely to influence pertinent geochemical processes (e.g., dissolution/precipitation, sorption/desorption and redox reactions) in the aquifer sediments. • Identify prevailing environmental conditions that would dictate one geochemical outcome over another. • Gather useful information to support site selection, risk assessment, policy-making, and public education efforts associated with geological carbon sequestration. In this report, we present results from experiments conducted at PNNL to address research issues related to the main objectives of this effort. A series of batch and column experiments and solid phase characterization studies (quantitative x-ray diffraction and wet chemical extractions with a concentrated acid) were conducted with representative rocks and sediments from an unconfined, oxidizing carbonate aquifer, i.e., Edwards aquifer in Texas, and a confined aquifer, i.e., the High Plains aquifer in Kansas. These materials were exposed to a CO2 gas stream simulating CO2 gas leaking scenarios, and changes in aqueous phase pH …
Date: April 15, 2013
Creator: Qafoku, Nikolla; Brown, Christopher F.; Wang, Guohui; Sullivan, E. C.; Lawter, Amanda R.; Harvey, Omar R. et al.
Object Type: Report
System: The UNT Digital Library
"Hollowing Out" in U.S. Manufacturing: Analysis and Issues for Congress (open access)

"Hollowing Out" in U.S. Manufacturing: Analysis and Issues for Congress

Statistics showing that domestic value added represents a diminishing share of the value of U.S. factory output have been interpreted by many analysts as indicating that manufacturing is "hollowing out" as U.S. manufacturers undertake more highvalue work abroad. Economic data have been slow to take note of this development, which raises the question of whether the United States will continue to generate highly skilled, high-wage jobs related to advanced manufacturing. This report discusses economic evidence related to the "hollowing out" thesis with respect to the manufacturing sector. It then considers the policy implications of the debate.
Date: April 15, 2013
Creator: Levinson, Marc
Object Type: Report
System: The UNT Digital Library
How Legislation Is Brought to the House Floor: A Snapshot of Parliamentary Practice in the 112th Congress (2011-2012) (open access)

How Legislation Is Brought to the House Floor: A Snapshot of Parliamentary Practice in the 112th Congress (2011-2012)

This report provides a statistical snapshot of the forms, origins, and party sponsorship of these measures and of the parliamentary procedures used to bring them to the chamber floor during their initial consideration.
Date: April 15, 2013
Creator: Davis, Christopher M.
Object Type: Report
System: The UNT Digital Library
Internal Revenue Service: 2013 Tax Filing Season Performance to Date and Budget Data (open access)

Internal Revenue Service: 2013 Tax Filing Season Performance to Date and Budget Data

Correspondence issued by the Government Accountability Office with an abstract that begins "In summary, so far in the 2013 filing season, GAO found the following:"
Date: April 15, 2013
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
International Trade and Finance: Key Policy Issues for the 113th Congress (open access)

International Trade and Finance: Key Policy Issues for the 113th Congress

This report discusses a variety of issues faced by the 113th Congress. Topics include trade negotiations with China, export controls and sanctions, import policies, intellectual property rights, international investments and international financial institutions.
Date: April 15, 2013
Creator: Hornbeck, J. F. & Irace, Mary A.
Object Type: Report
System: The UNT Digital Library
Journal of the Senate of Texas: 83rd Legislature, Regular Session, Monday, April 15, 2013 (open access)

Journal of the Senate of Texas: 83rd Legislature, Regular Session, Monday, April 15, 2013

Proceedings of the Senate of Texas for the fortieth day of the Regular session of the 83rd Legislature documenting legislation, reports, discussions, votes, and points-of-order.
Date: April 15, 2013
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
A Laser Optical System to Remove Low Earth Orbit Space Debris (open access)

A Laser Optical System to Remove Low Earth Orbit Space Debris

None
Date: April 15, 2013
Creator: Phipps, C. R.; Baker, K. L.; Libby, S. B.; Liedahl, D. A.; Olivier, S. S.; Pleasance, L. D. et al.
Object Type: Article
System: The UNT Digital Library
Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing: Year 2 Report (open access)

Mapping Diffuse Seismicity for Geothermal Reservoir Management with Matched Field Processing: Year 2 Report

None
Date: April 15, 2013
Creator: Templeton, D C; Harris, D B & Wang, J
Object Type: Report
System: The UNT Digital Library
Mexico’s Drug Trafficking Organizations: Source and Scope of the Violence (open access)

Mexico’s Drug Trafficking Organizations: Source and Scope of the Violence

This report details drug trafficking in Mexico and how it has altered. It also delves into the violence of the drug organizations, and depicts possible ways to reduce the violence.
Date: April 15, 2013
Creator: Beittel, June S.
Object Type: Report
System: The UNT Digital Library
Multicolor Operation and Spectral Control in a Gain-Modulated x-ray Free Electron Laser (open access)

Multicolor Operation and Spectral Control in a Gain-Modulated x-ray Free Electron Laser

None
Date: April 15, 2013
Creator: Marinelli, A; Lutman, A. A.; Wu, J.; Ding, Y.; Krzywinski, J.; Nuhn, H. D. et al.
Object Type: Article
System: The UNT Digital Library
Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress (open access)

Navy Force Structure and Shipbuilding Plans: Background and Issues for Congress

This report provides background information and presents potential issues for Congress concerning the Navy's ship force-structure goals and shipbuilding plans. The planned size of the Navy, the rate of Navy ship procurement, and the prospective affordability of the Navy's shipbuilding plans have been matters of concern for the congressional defense committees for the past several years. Decisions that Congress makes on Navy shipbuilding programs can substantially affect Navy capabilities and funding requirements, and the U.S. shipbuilding industrial base.
Date: April 15, 2013
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
Optimal nitrogen application rates for three intensively-managed hardwood tree species in the southeastern USA. (open access)

Optimal nitrogen application rates for three intensively-managed hardwood tree species in the southeastern USA.

Forest production can be limited by nutrient and water availability, and tree species are expected to respond differently to fertilization and irrigation. Despite these common expectations, multi-species comparisons are rare, especially ones implementing a range of fertilization rates crossed with irrigation. This study compares the response of three forest hardwood species to numerous nitrogen (N) fertilization levels and water availability using a novel non-replicated technique. A range of N levels was included to determine how N affected the growth response curve, and statistical procedures for comparing these non-linear response functions are presented. We used growth and yield data to calculate the Land Expectation Value (LEV) for these intensive management treatments, and to determine the optimal growing conditions (accounting for tree productivity and grower expenses). To accomplish these objectives, we used a series of cottonwood, sycamore, and sweetgum plots that received a range of N fertilization with or without irrigation. Regression is an economical approach to define treatment responses in large-scale experiments, and we recommend >3 treatment levels so the response of any single plot does not disproportionally influence the line. The non-replicated plots showed a strong positive N response below 150 kg N ha -1 yr -1, beyond which little …
Date: April 15, 2013
Creator: Coyle, David; Aubrey, Doug P.; Siry, Jacek P.; Volfovicz-Leon, Roberto R. & Coleman, Mark D.
Object Type: Article
System: The UNT Digital Library
Oscillating terms in the Renyi entropy of Fermi gases and liquids (open access)

Oscillating terms in the Renyi entropy of Fermi gases and liquids

None
Date: April 15, 2013
Creator: Swingle, B; McMinis, J & Tubman, N M
Object Type: Article
System: The UNT Digital Library