Child Welfare: Social Security and Supplemental Security Income (SSI) Benefits for Children in Foster Care (open access)

Child Welfare: Social Security and Supplemental Security Income (SSI) Benefits for Children in Foster Care

This report begins with a discussion of the foster care system and the Social Security benefits available to eligible children, including those in foster care. It then describes the role of representative payees and their responsibilities. The report provides data on the use of Social Security benefits to reimburse states for child welfare, and includes a discussion of the Keffeler decision. Finally, the report concludes with proposals supported by some advocates to change the current practice of using SSI and other Social Security benefits to fund foster care.
Date: September 28, 2012
Creator: Moulta-Ali, Umar; Fernandes-Alcantara, Adrienne L. & Stoltzfus, Emilie
Object Type: Report
System: The UNT Digital Library
Title X (Public Health Service Act) Family Planning Program (open access)

Title X (Public Health Service Act) Family Planning Program

This report looks at several bills addressing the Family Planning Program (Title X of the Public Health Service Act) which have been introduced in the 112th Congress, including: funding for abortion-providing entities, elimination of the program, and prohibitions on government spending for the program.
Date: August 28, 2012
Creator: Napili, Angela
Object Type: Report
System: The UNT Digital Library
Nevada National Security Site Waste Acceptance Criteria (open access)

Nevada National Security Site Waste Acceptance Criteria

This document establishes the U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Site Office (NNSA/NSO), Nevada National Security Site Waste Acceptance Criteria (NNSSWAC). The NNSSWAC provides the requirements, terms, and conditions under which the Nevada National Security Site (NNSS) will accept DOE non-radioactive classified waste, DOE non-radioactive hazardous classified waste, DOE low-level radioactive waste (LLW), DOE mixed low-level waste (MLLW), and U.S. Department of Defense (DOD) classified waste for permanent disposal. Classified waste is the only waste accepted for disposal that may be non-radioactive and will be required to meet the waste acceptance criteria for radioactive waste as specified in this document. The NNSA/NSO and support contractors are available to assist you in understanding or interpreting this document. For assistance, please call the NNSA/NSO Waste Management Project (WMP) at (702) 295-7063, and your call will be directed to the appropriate contact.
Date: February 28, 2012
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
Social Security Reform: Current Issues and Legislation (open access)

Social Security Reform: Current Issues and Legislation

Report that looks at the Social Security debate, Social Security future projections, and public opinion on Social Security reform. It also looks at past reform measures, from the 109th-112th Congress, none of which received congressional action.
Date: November 28, 2012
Creator: Nuschler, Dawn
Object Type: Report
System: The UNT Digital Library
ANALYSIS OF THE TANK 6F FINAL CHARACTERIZATION SAMPLES-2012 (open access)

ANALYSIS OF THE TANK 6F FINAL CHARACTERIZATION SAMPLES-2012

The Savannah River National Laboratory (SRNL) was requested by Savannah River Remediation (SRR) to provide sample preparation and analysis of the Tank 6F final characterization samples to determine the residual tank inventory prior to grouting. Fourteen residual Tank 6F solid samples from three areas on the floor of the tank were collected and delivered to SRNL between May and August 2011. These Tank 6F samples were homogenized and combined into three composite samples based on a proportion compositing scheme and the resulting composite samples were analyzed for radiological, chemical and elemental components. Additional measurements performed on the Tank 6F composite samples include bulk density and water leaching of the solids to account for water soluble components. The composite Tank 6F samples were analyzed and the data reported in triplicate. Sufficient quality assurance standards and blanks were utilized to demonstrate adequate characterization of the Tank 6F samples. The main evaluation criteria were target detection limits specified in the technical task request document. While many of the target detection limits were met for the species characterized for Tank 6F some were not met. In a few cases, the relatively high levels of radioactive species of the same element or a chemically similar …
Date: June 28, 2012
Creator: Oji, L.; Diprete, D.; Coleman, C.; Hay, M. & Shine, G.
Object Type: Report
System: The UNT Digital Library
Report for Treating Hanford LAW and WTP SW Simulants: Pilot Plant Mineralizing Flowsheet (open access)

Report for Treating Hanford LAW and WTP SW Simulants: Pilot Plant Mineralizing Flowsheet

The US Department of Energy is responsible for managing the disposal of radioactive liquid waste in underground storage tanks at the Hanford site in Washington State. The Hanford waste treatment and immobilization plant (WPT) will separate the waste into a small volume of high level waste (HLW), containing most of the radioactive constituents, and a larger volume of low activity waste (LAW), containing most of the non-radioactive chemical and hazardous constituents. The HLW and LAW will be converted into immobilized waste forms for disposal. Currently there is inadequate LAW vitrification capacity planned at the WTP to complete the mission within the required timeframe. Therefore additional LAW capacity is required. One candidate supplemental treatment technology is the fluidized bed steam reformer process (FBSR). This report describes the demonstration testing of the FBSR process using a mineralizing flowsheet for treating simulated Hanford LAW and secondary waste from the WTP (WTP SW). The FBSR testing project produced leach-resistant solid products and environmentally compliant gaseous effluents. The solid products incorporated normally soluble ions into an alkali alumino-silicate (NaS) mineral matrix. Gaseous emissions were found to be within regulatory limits. Cesium and rhenium were captured in the mineralized products with system removal efficiencies of 99.999% …
Date: February 28, 2012
Creator: Olson, Arlin
Object Type: Report
System: The UNT Digital Library
The History of X-ray Free-Electron Lasers (open access)

The History of X-ray Free-Electron Lasers

The successful lasing at the SLAC National Accelerator Laboratory of the Linear Coherent Light Source (LCLS), the first X-ray free-electron laser (X-ray FEL), in the wavelength range 1.5 to 15 {angstrom}, pulse duration of 60 to few femtoseconds, number of coherent photons per pulse from 10{sup 13} to 10{sup 11}, is a landmark event in the development of coherent electromagnetic radiation sources. Until now electrons traversing an undulator magnet in a synchrotron radiation storage ring provided the best X-ray sources. The LCLS has set a new standard, with a peak X-ray brightness higher by ten orders of magnitudes and pulse duration shorter by three orders of magnitudes. LCLS opens a new window in the exploration of matter at the atomic and molecular scales of length and time. Taking a motion picture of chemical processes in a few femtoseconds or less, unraveling the structure and dynamics of complex molecular systems, like proteins, are some of the exciting experiments made possible by LCLS and the other X-ray FELs now being built in Europe and Asia. In this paper, we describe the history of the many theoretical, experimental and technological discoveries and innovations, starting from the 1960s and 1970s, leading to the development …
Date: June 28, 2012
Creator: Pellegrini, C. & /SLAC, /UCLA
Object Type: Article
System: The UNT Digital Library
The Development of High Speed Rail in the United States: Issues and Recent Events (open access)

The Development of High Speed Rail in the United States: Issues and Recent Events

This report looks at the different ways to construct a high speed rail (HSR) in the U.S., including estimates of construction costs.
Date: June 28, 2012
Creator: Peterman, David Randall; Frittelli, John & Mallett, William J.
Object Type: Report
System: The UNT Digital Library
Solving The Long-Standing Problem Of Low-Eneregy Nuclear Reactions At The Highest Microscopic Level: Annual Continuation And Progress Report (open access)

Solving The Long-Standing Problem Of Low-Eneregy Nuclear Reactions At The Highest Microscopic Level: Annual Continuation And Progress Report

None
Date: August 28, 2012
Creator: Quaglioni, S
Object Type: Report
System: The UNT Digital Library
Laser Phase Errors in Seeded FELs (open access)

Laser Phase Errors in Seeded FELs

Harmonic seeding of free electron lasers has attracted significant attention from the promise of transform-limited pulses in the soft X-ray region. Harmonic multiplication schemes extend seeding to shorter wavelengths, but also amplify the spectral phase errors of the initial seed laser, and may degrade the pulse quality. In this paper we consider the effect of seed laser phase errors in high gain harmonic generation and echo-enabled harmonic generation. We use simulations to confirm analytical results for the case of linearly chirped seed lasers, and extend the results for arbitrary seed laser envelope and phase.
Date: March 28, 2012
Creator: Ratner, D.; Fry, A.; Stupakov, G. & White, W.
Object Type: Article
System: The UNT Digital Library
Seeding Coherent Radiation Sources with Sawtooth Modulation (open access)

Seeding Coherent Radiation Sources with Sawtooth Modulation

Seed radiation sources have the ability to increase longitudinal coherence, decrease saturation lengths, and improve performance of tapering, polarization control and other FEL features. Typically, seeding schemes start with a simple sinusoidal modulation, which is manipulated to provide bunching at a high harmonic of the original wavelength. In this paper, we consider seeding from sawtooth modulations. The sawtooth creates a clean phase space structure, providing a maximal bunching factor without the need for an FEL interaction. While a pure sawtooth modulation is a theoretical construct, it is possible to approach the waveform by combining two or more of the composite wavelengths. We give examples of sawtooth seeding for HGHG, EEHG and other schemes, and note that the sawtooth modulation may aid in suppression of the microbunching instability.
Date: March 28, 2012
Creator: Ratner, Daniel & Chao, Alex
Object Type: Article
System: The UNT Digital Library
Process Formulations And Curing Conditions That Affect Saltstone Properties (open access)

Process Formulations And Curing Conditions That Affect Saltstone Properties

The first objective of this study was to analyze saltstone fresh properties to determine the feasibility of reducing the formulation water to premix (w/p) ratio while varying the amount of extra water and admixtures used during processing at the Saltstone Production Facility (SPF). The second part of this study was to provide information for understanding the impact of curing conditions (cure temperature, relative humidity (RH)) and processing formulation on the performance properties of cured saltstone.
Date: September 28, 2012
Creator: Reigel, M. M.; Pickenheim, B. R. & Daniel, W. E.
Object Type: Report
System: The UNT Digital Library
Final Technical Report Power through Policy: "Best Practices" for Cost-Effective Distributed Wind (open access)

Final Technical Report Power through Policy: "Best Practices" for Cost-Effective Distributed Wind

Power through Policy: 'Best Practices' for Cost-Effective Distributed Wind is a U.S. Department of Energy (DOE)-funded project to identify distributed wind technology policy best practices and to help policymakers, utilities, advocates, and consumers examine their effectiveness using a pro forma model. Incorporating a customized feed from the Database of State Incentives for Renewables and Efficiency (DSIRE), the Web-based Distributed Wind Policy Comparison Tool (Policy Tool) is designed to assist state, local, and utility officials in understanding the financial impacts of different policy options to help reduce the cost of distributed wind technologies. The project's final products include the Distributed Wind Policy Comparison Tool, found at www.windpolicytool.org, and its accompanying documentation: Distributed Wind Policy Comparison Tool Guidebook: User Instructions, Assumptions, and Case Studies. With only two initial user inputs required, the Policy Tool allows users to adjust and test a wide range of policy-related variables through a user-friendly dashboard interface with slider bars. The Policy Tool is populated with a variety of financial variables, including turbine costs, electricity rates, policies, and financial incentives; economic variables including discount and escalation rates; as well as technical variables that impact electricity production, such as turbine power curves and wind speed. The Policy Tool allows …
Date: February 28, 2012
Creator: Rhoads-Weaver, Heather; Gagne, Matthew; Sahl, Kurt; Orrell, Alice & Banks, Jennifer
Object Type: Report
System: The UNT Digital Library
Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility (open access)

Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility

Final Technical Report for the Recovery Act Project for the Installation of a Low Flow Unit at the Abiquiu Hydroelectric Facility. The Abiquiu hydroelectric facility existed with two each 6.9 MW vertical flow Francis turbine-generators. This project installed a new 3.1 MW horizontal flow low flow turbine-generator. The total plant flow range to capture energy and generate power increased from between 250 and 1,300 cfs to between 75 and 1,550 cfs. Fifty full time equivalent (FTE) construction jobs were created for this project - 50% (or 25 FTE) were credited to ARRA funding due to the ARRA 50% project cost match. The Abiquiu facility has increased capacity, increased efficiency and provides for an improved aquatic environment owing to installed dissolved oxygen capabilities during traditional low flow periods in the Rio Chama. A new powerhouse addition was constructed to house the new turbine-generator equipment.
Date: June 28, 2012
Creator: Richardson, Jack Q.
Object Type: Report
System: The UNT Digital Library
Climate Science for a Sustainable Energy Future Atmospheric Radiation Measurement Best Estimate (CSSEFARMBE) (open access)

Climate Science for a Sustainable Energy Future Atmospheric Radiation Measurement Best Estimate (CSSEFARMBE)

The Climate Science for a Sustainable Energy Future (CSSEF) project is working to improve the representation of the hydrological cycle in global climate models, critical information necessary for decision-makers to respond appropriately to predictions of future climate. In order to accomplish this objective, CSSEF is building testbeds to implement uncertainty quantification (UQ) techniques to objectively calibrate and diagnose climate model parameterizations and predictions with respect to local, process-scale observations. In order to quantify the agreement between models and observations accurately, uncertainty estimates on these observations are needed. The DOE Atmospheric Radiation Measurement (ARM) program takes atmospheric and climate related measurements at three permanent locations worldwide. The ARM VAP called the ARM Best Estimate (ARMBE) [Xie et al., 2010] collects a subset of ARM observations, performs quality control checks, averages them to one hour temporal resolution, and puts them in a standard format for ease of use by climate modelers. ARMBE has been widely used by the climate modeling community as a summary product of many of the ARM observations. However, the ARMBE product does not include uncertainty estimates on the data values. Thus, to meet the objectives of the CSSEF project and enable better use of this data with UQ …
Date: September 28, 2012
Creator: Riihimaki, Laura D.; Gaustad, Krista L. & McFarlane, Sally A.
Object Type: Report
System: The UNT Digital Library
Hybrid Arc Cell Studies: Status Report (open access)

Hybrid Arc Cell Studies: Status Report

I report on the status, at the end of FY12, of the studies of an arc cell for a hybrid synchrotron accelerating from 375 GeV/c to 750 GeV/c in momentum. Garren produced a complete lattice that gives a good outline of the structure of a hybrid synchrotron lattice. It is, however, lacking in some details: it does not maintain a constant time of flight, it lacks chromaticity correction, its cell structure is not ideal for removing aberrations from chromaticity correction, and it probably needs more space between magnets. I have begun studying cell structures for the arc cells to optimize the lattice performance and cost. I present some preliminary results for two magnets per half cell. I then discuss difficulties encountered, some preliminary attempts at resolving them, and the future plans for this work.
Date: September 28, 2012
Creator: S., Berg J.
Object Type: Report
System: The UNT Digital Library
The Dependence of H-mode Energy Confinement and Transport on Collisionality in NSTX (open access)

The Dependence of H-mode Energy Confinement and Transport on Collisionality in NSTX

Understanding the dependence of confi nement on collisionality in tokamaks is important for the design of next-step devices, which will operate at collisionalities at least one order of magnitude lower than in present generation. A wide range of collisionality has been obtained in the National Spherical Torus Experiment (NSTX) by employing two different wall conditioning techniques, one with boronization and between-shot helium glow discharge conditioning (HeGDC+B), and one using lithium evaporation (Li EVAP). Previous studies of HeGDC+B plasmas indicated a strong and favorable dependence of normalized con nement on collisionality. Discharges with lithium conditioning discussed in the present study gen- erally achieved lower collisionality, extending the accessible range of collisionality by almost an order of unity. While the confinement dependences on dimensional, engineering variables of the HeGDC+B and Li EVAP datasets differed, collisionality was found to unify the trends, with the lower collisionality lithium conditioned discharges extending the trend of increasing normalized confi nement time with decreasing collisionality when other dimension less variables were held as fi xed as possible. This increase of confi nement with decreasing collisionality was driven by a large reduction in electron transport in the outer region of the plasma. This result is consistent with gyrokinetic …
Date: November 28, 2012
Creator: S.M.. Kaye, S. Gerhardt, W. Guttenfelder, R. Maingi, R.E. Bell, A. Diallo, B.P. LeBlanc and M. Podesta
Object Type: Report
System: The UNT Digital Library
The Obama Administration's Proposal to Establish a National Network for Manufacturing Innovation (open access)

The Obama Administration's Proposal to Establish a National Network for Manufacturing Innovation

Report that discusses the proposed creation of the National Network for Manufacturing Innovation (NNMI), which would help accelerate innovation and support manufacturing technology commercialization. It includes an overview of the topic as well as discussion on the Administration's proposal, preliminary activities, legislative status, and issues for consideration.
Date: August 28, 2012
Creator: Sargent, John F., Jr.
Object Type: Report
System: The UNT Digital Library
Science, Technology, and Innovation Policy: CRS Experts (open access)

Science, Technology, and Innovation Policy: CRS Experts

The table in this report provides names and contact information for CRS experts on federal science, technology, and innovation policies, including authorizing programs and funding, making appropriations, and conducting oversight activities.
Date: August 28, 2012
Creator: Sargent, John F., Jr.
Object Type: Report
System: The UNT Digital Library
Plasma-based Accelerator with Magnetic Compression (open access)

Plasma-based Accelerator with Magnetic Compression

Electron dephasing is a major gain-inhibiting effect in plasma-based accelerators. A novel method is proposed to overcome dephasing, in which the modulation of a modest (#24; O(10 kG)), axial, uniform magnetic field in the acceleration channel leads to densification of the plasma through magnetic compression, enabling direct, time-resolved control of the plasma wave properties. The methodology is broadly applicable and can be optimized to improve the leading acceleration approaches, including plasma beat-wave, plasma wakefield, and laser wakefield acceleration. The advantages of magnetic compression compared to other proposed schemes to overcome dephasing are identified.
Date: June 28, 2012
Creator: Schmit, Paul F. & Fisch, Nathaniel J.
Object Type: Report
System: The UNT Digital Library
HIGH-DENSITY, BIO-COMPATIBLE, AND HERMETIC ELECTRICAL FEEDTHROUGHS USING EXTRUDED METAL VIAS (open access)

HIGH-DENSITY, BIO-COMPATIBLE, AND HERMETIC ELECTRICAL FEEDTHROUGHS USING EXTRUDED METAL VIAS

Implanted medical devices such as pacemakers and neural prosthetics require that the electronic components that power these devices are protected from the harsh chemical and biological environment of the body. Typically, the electronics are hermetically sealed inside a bio-compatible package containing feedthroughs that transmit electrical signals, while being impermeable to particles or moisture. We present a novel approach for fabricating one of the highest densities of biocompatible hermetic feedthroughs in alumina (Al{sub 2}O{sub 3}). Alumina substrates with laser machined vias of 200 {micro}m pitch were conformally metallized and lithographically patterned. Hermetic electrical feedthroughs were formed by extruding metal stud-bumps partially through the vias. Hermeticity testing showed leak rates better than 9 x 10{sup -10} torr-l/s. Based on our preliminary results and process optimization, this extruded metal via approach is a high-density, low temperature, cost-effective, and robust method of miniaturizing electrical feedthroughs for a wide range of implantable bio-medical device applications.
Date: March 28, 2012
Creator: Shah, K G; Delima, T; Felix, S; Sheth, H; Tolosa, V; Tooker, A et al.
Object Type: Article
System: The UNT Digital Library
Energy Tax Policy: Issues in the 112th Congress (open access)

Energy Tax Policy: Issues in the 112th Congress

The economic rationale for interventions in energy markets helps inform the debate surrounding energy tax policy. This report begins by providing background on the economic rationale for energy market interventions, highlighting various market failures. After identifying possible market failures in the production and consumption of energy, possible interventions are discussed. The report concludes with an analysis of the current status of energy tax policy.
Date: March 28, 2012
Creator: Sherlock, Molly F. & Crandall-Hollick, Margot L.
Object Type: Report
System: The UNT Digital Library
Farm Safety Net Provisions in a 2012 Farm Bill: S. 3240 and H.R. 6083 (open access)

Farm Safety Net Provisions in a 2012 Farm Bill: S. 3240 and H.R. 6083

None
Date: September 28, 2012
Creator: Shields, Dennis A. & Schnepf, Randy
Object Type: Report
System: The UNT Digital Library
GLOBAL P-WAVE TOMOGRAPHY FOR IMPROVED TRAVEL TIME PREDICTIONS AND EVENT LOCATIONS (open access)

GLOBAL P-WAVE TOMOGRAPHY FOR IMPROVED TRAVEL TIME PREDICTIONS AND EVENT LOCATIONS

None
Date: June 28, 2012
Creator: Simmons, N A; Myers, S C; Johannesson, G & Matzel, E
Object Type: Article
System: The UNT Digital Library