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Grants to State and Local Governments: An Overview of Federal Funding Levels and Selected Challenges

Description: A letter report issued by the Government Accountability Office with an abstract that begins "Federal outlays for grants to state and local governments totaled more than $606 billion in fiscal year 2011. Over the last three decades, these grants have consistently been a significant component of federal spending, but the focus of this spending has changed over time. For example, during this period the proportion of federal outlays to state and local governments dedicated to Medicaid grants more t… more
Date: September 25, 2012
Creator: United States. Government Accountability Office.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

SULFUR HEXAFLUORIDE TREATMENT OF USED NUCLEAR FUEL TO ENHANCE SEPARATIONS

Description: Reactive Gas Recycling (RGR) technology development has been initiated at Savannah River National Laboratory (SRNL), with a stretch-goal to develop a fully dry recycling technology for Used Nuclear Fuel (UNF). This approach is attractive due to the potential of targeted gas-phase treatment steps to reduce footprint and secondary waste volumes associated with separations relying primarily on traditional technologies, so long as the fluorinators employed in the reaction are recycled for use in th… more
Date: September 25, 2012
Creator: Gray, J.; Torres, R.; Korinko, P.; Martinez-Rodriguez, M.; Becnel, J.; Garcia-Diaz, B. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Final Technical Report

Description: This program applied reservoir cathode technology to increase the lifetime of cesiated tungsten photocathodes. Cesiated tungsten photocathodes provide a quantum efficiency of approximately 0.08% when cesium is initially applied to the surface. During operation, however, the cesium evaporates from the surface, resulting in a gradual decrease in quantum efficiency. After 4-6 hours of operation, the efficiency drop to below useful levels, requiring recoating on the emission surface. This program d… more
Date: September 25, 2012
Creator: Ives, Lawrence; Montgomery, Eric; Pan, Zhigang; Riddick, Blake; Feldman, Donald & Falce, Lou
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Inhibition Of Washed Sludge With Sodium Nitrite

Description: This report describes the results of electrochemical tests used to determine the relationship between the concentration of the aggressive anions in washed sludge and the minimum effective inhibitor concentration. Sodium nitrate was added as the inhibitor because of its compatibility with the DWPF process. A minimum of 0.05M nitrite is required to inhibit the washed sludge simulant solution used in this study. When the worst case compositions and safety margins are considered, it is expected tha… more
Date: September 25, 2012
Creator: Congdon, J. W. & Lozier, J. S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The Hamiltonian Structure and Euler-Poincare Formulation of the Valsov-Maxwell and Gyrokinetic System

Description: We present a new variational principle for the gyrokinetic system, similar to the Maxwell-Vlasov action presented in Ref. 1. The variational principle is in the Eulerian frame and based on constrained variations of the phase space fluid velocity and particle distribution function. Using a Legendre transform, we explicitly derive the field theoretic Hamiltonian structure of the system. This is carried out with the Dirac theory of constraints, which is used to construct meaningful brackets from t… more
Date: September 25, 2012
Creator: Squire, J.; Qin, H. & Tang, W. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Oxy-Combustion Environment Characterization: Fire- and Steam-Side Corrosion in Advanced Combustion

Description: Oxy-fuel combustion is burning a fuel in oxygen rather than air. The low nitrogen flue gas that results is relatively easy to capture CO{sub 2} from for reuse or sequestration. Corrosion issues associated with the environment change (replacement of much of the N{sub 2} with CO{sub 2} and higher sulfur levels) from air- to oxy-firing were examined. Alloys studied included model Fe-Cr alloys and commercial ferritic steels, austenitic steels, and nickel base superalloys. The corrosion behavior is … more
Date: September 25, 2012
Creator: Holcomb, G. R.; Tylczak, J.; Meier, G. H.; Lutz, B. S.; Yanar, N. M.; Pettit, F. S. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Formed Core Sampler Hydraulic Conductivity Testing

Description: A full-scale formed core sampler was designed and functionally tested for use in the Saltstone Disposal Facility (SDF). Savannah River National Laboratory (SRNL) was requested to compare properties of the formed core samples and core drilled samples taken from adjacent areas in the full-scale sampler. While several physical properties were evaluated, the primary property of interest was hydraulic conductivity. Differences in hydraulic conductivity between the samples from the formed core sample… more
Date: September 25, 2012
Creator: Miller, D. H. & Reigel, M. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Calculation of Eddy Currents In the CTH Vacuum Vessel and Coil Frame

Description: Knowledge of eddy currents in the vacuum vessel walls and nearby conducting support structures can significantly contribute to the accuracy of Magnetohydrodynamics (MHD) equilibrium reconstruction in toroidal plasmas. Moreover, the magnetic fields produced by the eddy currents could generate error fields that may give rise to islands at rational surfaces or cause field lines to become chaotic. In the Compact Toroidal Hybrid (CTH) device (R0 = 0.75 m, a = 0.29 m, B ≤ 0.7 T), the primary driver o… more
Date: September 25, 2012
Creator: Zolfaghari, A.; Brooks, A; Michaels, A.; Hanson, J. & Hartwell, G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Nonlinear Amplification and Decay of Phase-mixed Waves in Compressing Plasma

Description: Through particle-in-cell simulations, we show that plasma waves carrying trapped electrons can be amplified manyfold via compressing plasma perpendicularly to the wave vector. These simulations are the first ab initio demonstration of the conservation of nonlinear action for such waves, which contains a term independent of the field amplitude. In agreement with the theory, the maximum of amplification gain is determined by the total initial energy of the trapped-particle average motion but othe… more
Date: September 25, 2012
Creator: Schmit, Paul F.; Dodin, I. Y.; Rocks, J. & Fisch, N. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Gyrokinetic Studies of the Effect of Beta on Drift-wave Stability in NCSX

Description: The gyrokinetic turbulence code GS2 was used to investigate the effects of plasma β on linear, collisionless ion temperature gradient (ITG) modes and trapped electron modes (TEM) in National Compact Stellarator Experiment (NCSX) geometry. Plasma β affects stability in two ways: through the equilibrium and through magnetic fluctuations. The first was studied here by comparing ITG and TEM stability in two NCSX equilibria of differing β values, revealing that the high β equilibrium was marginally … more
Date: September 25, 2012
Creator: J.A. Baumgaertel, G.W. Hammett, D.R. Mikkelsen, M. Nunami, and P. Xanthopoulos
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

War Powers Resolution: Presidential Compliance

Description: This report gives a summary of the usage of the War Powers Resolution (WPR) and various issues related to proposals to modify or repeal the resolution. The report summarizes the most recent developments and background, and gives an overview of United Nations actions, and WPR activities in former Yugoslavia/Bosnia, Kosovo, Iraq (post-1991), Haiti, and Somalia. It also includes commentary on the instances formally reported under the WPR, the requirement for consultation with Congress, and the cur… more
Date: September 25, 2012
Creator: Grimmett, Richard F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Higher Education Tax Benefits: Brief Overview and Budgetary Effects

Description: This report provides a brief overview of the higher education tax benefits that are currently available to students and their families. The report contrasts higher education tax benefits with traditional student aid, presents a brief history of higher education tax policy over the past 60 years, summarizes key features of the available tax benefits, and provides JCT estimates of revenue losses resulting from individual tax provisions.
Date: September 25, 2012
Creator: Crandall-Hollick, Margot L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Residential Energy Tax Credits: Overview and Analysis

Description: This report explores one policy option for promoting residential energy efficiency: tax credits. It begins by providing an overview of the current residential energy-efficiency tax credits. The report then goes on to provide an economic rationale for residential energy-efficiency tax incentives, introducing the concept of "market failures" and "market barriers" which may lead to suboptimal or "economically inefficient" investment in energy-efficiency technologies. The final sections of this re… more
Date: September 25, 2012
Creator: Crandall-Hollick, Margot L. & Sherlock, Molly F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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