Financial Audit: American Battle Monuments Commission's Financial Statements for Fiscal Years 2011 and 2010 (open access)

Financial Audit: American Battle Monuments Commission's Financial Statements for Fiscal Years 2011 and 2010

A letter report issued by the Government Accountability Office with an abstract that begins "In GAOÂ’s opinion, the financial statements of the American Battle Monuments Commission (the Commission) as of September 30, 2011, and 2010, and for the fiscal years then ended, are presented fairly, in all material respects, in conformity with U.S. generally accepted accounting principles (GAAP). Also, in GAOÂ’s opinion, although certain internal controls over financial reporting should be improved, the Commission maintained effective internal control over financial reporting as of September 30, 2011. In addition, GAO found no reportable instances of noncompliance with the laws and regulations it tested."
Date: March 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Fiscal Year 2011 U.S. Government Financial Statements: The Federal Government Faces Continuing Financial Management and Long-Term Fiscal Challenges (open access)

Fiscal Year 2011 U.S. Government Financial Statements: The Federal Government Faces Continuing Financial Management and Long-Term Fiscal Challenges

Testimony issued by the Government Accountability Office with an abstract that begins ""
Date: March 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Department of Homeland Security: Continued Progress Made Improving and Integrating Management Areas, but More Work Remains (open access)

Department of Homeland Security: Continued Progress Made Improving and Integrating Management Areas, but More Work Remains

Testimony issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) has updated and strengthened its strategy for how it plans to address GAO’s high-risk designation and resolve the department’s management challenges. In January 2011, DHS provided GAO with its Integrated Strategy for High Risk Management, which summarized the department’s preliminary plans for addressing the high-risk area. GAO found that this strategy, which was later updated in June and December 2011, was generally responsive to the actions and outcomes needed to address GAO’s high-risk designation. For example, the January 2011 strategy generally identified multiple, specific actions and target completion time frames consistent with the outcomes GAO identified. However, the strategy did not address the root causes of problems, among other things. In its June 2011 strategy, DHS, among other things, identified 10 root causes that cut across the management areas and their integration. GAO identified ways the strategy could be strengthened, including consistently reporting the progress of its initiatives and corrective actions. In its most recent update, DHS better positioned itself to address its management challenges. For example, for the first time, DHS included ratings of the department’s progress addressing its high-risk outcomes. …
Date: March 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Fiscal Year 2013 Performance Plan (open access)

Fiscal Year 2013 Performance Plan

Other written product issued by the Government Accountability Office with an abstract that begins ""
Date: March 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
NASA: Assessments of Selected Large-Scale Projects (open access)

NASA: Assessments of Selected Large-Scale Projects

A letter report issued by the Government Accountability Office with an abstract that begins ""
Date: March 1, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Brazos River Basin and Bay Expert Science Team Environmental Flow Regime Recommendations Report (open access)

Brazos River Basin and Bay Expert Science Team Environmental Flow Regime Recommendations Report

This report from the Brazos River Basin and Associated Bay and Estuary System Science Team (Brazos BBEST) is part of Texas Legislature Senate Bill 3 that created a process to set environmental flow standards for river basin and bay systems in Texas. This report gives recommendations for an environmental flow regime for the Brazos Basin and associated areas." (p. 1-1).
Date: March 1, 2012
Creator: Texas Water Development Board
Object Type: Report
System: The Portal to Texas History
Navy Virginia (SSN-774) Class Attack Submarine Procurement: Background and Issues for Congress (open access)

Navy Virginia (SSN-774) Class Attack Submarine Procurement: Background and Issues for Congress

This report provides background information and oversight issues for Congress on the Virginia class nuclear-powered attack submarine (SSN) program. The two Virginia-class boats requested for procurement in FY2013 are the final two in a group of eight covered by a multiyear procurement (MYP) arrangement for the period FY2009-FY2013. Issues for Congress include whether or not to approve the MYP arrangement request, whether to restore procurement of a second Virginia-class boat in FY2014, and the Virginia-class procurement rate in general.
Date: March 1, 2012
Creator: O'Rourke, Ronald
Object Type: Report
System: The UNT Digital Library
Navy Ship Names: Background for Congress (open access)

Navy Ship Names: Background for Congress

None
Date: March 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Chemical Regulation in the European Union: Registration, Evaluation, and Authorization of Chemicals (open access)

Chemical Regulation in the European Union: Registration, Evaluation, and Authorization of Chemicals

On June 1, 200, the European Union (EU) began to implement a new law governing chemicals in EU commerce: Registration, Evaluation, Authorization, and Restriction of Chemicals (REACH). It is intended to protect human health and the environment from hazardous chemicals while at the same time protecting the competitiveness of European industry. This report contains information on the background, how each part of the REACH law are implemented, and related materials.
Date: March 1, 2012
Creator: Schierow, Linda-Jo
Object Type: Report
System: The UNT Digital Library
Burma’s Political Prisoners and U.S. Sanctions (open access)

Burma’s Political Prisoners and U.S. Sanctions

This report discusses the current issues in Burma (Myanmar) in regards to political prisoners and the resulting U.S. sanctions against the nation. It includes an introduction and definitions; information about current estimates of prisoners and prisoner releases; the relation of political prisoners, parliamentary elections and national reconciliation; and U.S. sanctions and U.S. efforts regarding political prisoners, as well as relevant issues for Congress to consider.
Date: March 1, 2012
Creator: Martin, Michael F.
Object Type: Report
System: The UNT Digital Library
Advanced Fuels for LWRs: Fully-Ceramic Microencapsulated and Related Concepts FY 2012 Interim Report (open access)

Advanced Fuels for LWRs: Fully-Ceramic Microencapsulated and Related Concepts FY 2012 Interim Report

This report summarizes the progress in the Deep Burn project at Idaho National Laboratory during the first half of fiscal year 2012 (FY2012). The current focus of this work is on Fully-Ceramic Microencapsulated (FCM) fuel containing low-enriched uranium (LEU) uranium nitride (UN) fuel kernels. UO2 fuel kernels have not been ruled out, and will be examined as later work in FY2012. Reactor physics calculations confirmed that the FCM fuel containing 500 mm diameter kernels of UN fuel has positive MTC with a conventional fuel pellet radius of 4.1 mm. The methodology was put into place and validated against MCNP to perform whole-core calculations using DONJON, which can interpolate cross sections from a library generated using DRAGON. Comparisons to MCNP were performed on the whole core to confirm the accuracy of the DRAGON/DONJON schemes. A thermal fluid coupling scheme was also developed and implemented with DONJON. This is currently able to iterate between diffusion calculations and thermal fluid calculations in order to update fuel temperatures and cross sections in whole-core calculations. Now that the DRAGON/DONJON calculation capability is in place and has been validated against MCNP results, and a thermal-hydraulic capability has been implemented in the DONJON methodology, the work will …
Date: March 1, 2012
Creator: Sen, R. Sonat; Boer, Brian; Bess, John D.; Pope, Michael A. & Ougouag, Abderrafi M.
Object Type: Report
System: The UNT Digital Library
Improving Vehicle Efficiency, Reducing Dependence on Foreign Oil (Fact Sheet) (open access)

Improving Vehicle Efficiency, Reducing Dependence on Foreign Oil (Fact Sheet)

This fact sheet provides an overview of the U.S. Department of Energy's Vehicle Technologies Program. Today, the United States spends about $400 billion each year on imported oil. To realize a secure energy future, America must break its dependence on imported oil and its volatile costs. The transportation sector accounts for about 70% of U.S. oil demand and holds tremendous opportunity to increase America's energy security by reducing oil consumption. That's why the U.S. Department of Energy (DOE) conducts research and development (R and D) on vehicle technologies which can stem America's dependence on oil, strengthen the economy, and protect the environment. Hybrid-electric and plug-in hybrid-electric vehicles can significantly improve fuel economy, displacing petroleum. Researchers are making batteries more affordable and recyclable, while enhancing battery range, performance, and life. This research supports President Obama's goal of putting 1 million electric vehicles on the road by 2015. The program is also working with businesses to develop domestic battery and electric-drive component plants to improve America's economic competitiveness globally. The program facilitates deployment of alternative fuels (ethanol, biodiesel, hydrogen, electricity, propane, and natural gas) and fuel infrastructures by partnering with state and local governments, universities, and industry. Reducing vehicle weight directly improves …
Date: March 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Systems analysis of past, present, and future chemical terrorism scenarios. (open access)

Systems analysis of past, present, and future chemical terrorism scenarios.

Throughout history, as new chemical threats arose, strategies for the defense against chemical attacks have also evolved. As a part of an Early Career Laboratory Directed Research and Development project, a systems analysis of past, present, and future chemical terrorism scenarios was performed to understand how the chemical threats and attack strategies change over time. For the analysis, the difficulty in executing chemical attack was evaluated within a framework of three major scenario elements. First, historical examples of chemical terrorism were examined to determine how the use of chemical threats, versus other weapons, contributed to the successful execution of the attack. Using the same framework, the future of chemical terrorism was assessed with respect to the impact of globalization and new technologies. Finally, the efficacy of the current defenses against contemporary chemical terrorism was considered briefly. The results of this analysis justify the need for continued diligence in chemical defense.
Date: March 1, 2012
Creator: Hoette, Trisha Marie
Object Type: Report
System: The UNT Digital Library
Interim Results from a Study of the Impacts of Tin (II) Based Mercury Treatment in a Small Stream Ecosystem: Tims Branch, Savannah River Site (open access)

Interim Results from a Study of the Impacts of Tin (II) Based Mercury Treatment in a Small Stream Ecosystem: Tims Branch, Savannah River Site

A research team is assessing the impacts of an innovative mercury treatment system in Tims Branch, a small southeastern stream. The treatment system, installed in 2007, reduces and removes inorganic mercury from water using tin(II) (stannous) chloride addition followed by air stripping. The system results in discharge of inorganic tin to the ecosystem. This screening study is based on historical information combined with measurements of contaminant concentrations in water, fish, sediment, biofilms and invertebrates. Initial mercury data indicate that first few years of mercury treatment resulted in a significant decrease in mercury concentration in an upper trophic level fish, redfin pickerel, at all sampling locations in the impacted reach. For example, the whole body mercury concentration in redfin pickerel collected from the most impacted pond decreased approximately 72% between 2006 (pre-treatment) and 2010 (post-treatment). Over this same period, mercury concentrations in the fillet of redfin pickerel in this pond were estimated to have decreased from approximately 1.45 {micro}g/g (wet weight basis) to 0.45 {micro}g/g - a decrease from 4.8x to 1.5x the current EPA guideline concentration for mercury in fillet (0.3 {micro}g/g). Thermodynamic modeling, scanning electron microscopy, and other sampling data for tin suggest that particulate tin (IV) oxides are …
Date: March 1, 2012
Creator: Looney, Brian B.; Kling, David; Mills, Gary L.; Bryan, L., Jr.; Mathews, Teresa J.; Peterson, Mark J. et al.
Object Type: Report
System: The UNT Digital Library

Humidity, Temperature, and Voltage

An update is given on the work of the PV Quality Assurance Task Force; Group 3: studying the effects of humidity, temperature, and voltage bias.
Date: March 1, 2012
Creator: Wohlgemuth, J.
Object Type: Presentation
System: The UNT Digital Library
Mysterious dipole synchrotron oscillations during and after adiabatic capture (open access)

Mysterious dipole synchrotron oscillations during and after adiabatic capture

Strong synchrotron oscillations were observed during and after the 2.5-MHz rf adiabatic capture of a debunched booster batch in the Main Injector. Analysis shows two possible sources for the synchrotron oscillations. One is the frequency drift of the 2.5-MHz rf after the turning off of the 53-MHz rf voltage, thus resulting in an energy mismatch with the debunched beam. The second source is the energy mismatch of the injected booster beam with the frequency of the 53-MHz rf. We have been able to rule out the first possibility.
Date: March 1, 2012
Creator: Ng, King-Yuen
Object Type: Report
System: The UNT Digital Library
Emissivity Tuned Emitter for RTPV Power Sources (open access)

Emissivity Tuned Emitter for RTPV Power Sources

Every mission launched by NASA to the outer planets has produced unexpected results. The Voyager I and II, Galileo, and Cassini missions produced images and collected scientific data that totally revolutionized our understanding of the solar system and the formation of the planetary systems. These missions were enabled by the use of nuclear power. Because of the distances from the Sun, electrical power was produced using the radioactive decay of a plutonium isotope. Radioisotopic Thermoelectric Generators (RTGs) used in the past and currently used Multi-Mission RTGs (MMRTGs) provide power for space missions. Unfortunately, RTGs rely on thermocouples to convert heat to electricity and are inherently inefficient ({approx} 3-7% thermal to electric efficiency). A Radioisotope Thermal Photovoltaic (RTPV) power source has the potential to reduce the specific mass of the onboard power supply by increasing the efficiency of thermal to electric conversion. In an RTPV, a radioisotope heats an emitter, which emits light to a photovoltaic (PV) cell, which converts the light into electricity. Developing an emitter tuned to the desired wavelength of the photovoltaic is a key part in increasing overall performance. Researchers at the NASA Glenn Research Center (GRC) have built a Thermal Photovoltaic (TPV) system, that utilizes a …
Date: March 1, 2012
Creator: Stoots, Carl M.; O'Brien, Robert C. & Howe, Troy M.
Object Type: Article
System: The UNT Digital Library
Surface photovoltage measurements and finite element modeling of SAW devices. (open access)

Surface photovoltage measurements and finite element modeling of SAW devices.

Over the course of a Summer 2011 internship with the MEMS department of Sandia National Laboratories, work was completed on two major projects. The first and main project of the summer involved taking surface photovoltage measurements for silicon samples, and using these measurements to determine surface recombination velocities and minority carrier diffusion lengths of the materials. The SPV method was used to fill gaps in the knowledge of material parameters that had not been determined successfully by other characterization methods. The second project involved creating a 2D finite element model of a surface acoustic wave device. A basic form of the model with the expected impedance response curve was completed, and the model is ready to be further developed for analysis of MEMS photonic resonator devices.
Date: March 1, 2012
Creator: Donnelly, Christine
Object Type: Report
System: The UNT Digital Library
Cyber threat metrics. (open access)

Cyber threat metrics.

Threats are generally much easier to list than to describe, and much easier to describe than to measure. As a result, many organizations list threats. Fewer describe them in useful terms, and still fewer measure them in meaningful ways. This is particularly true in the dynamic and nebulous domain of cyber threats - a domain that tends to resist easy measurement and, in some cases, appears to defy any measurement. We believe the problem is tractable. In this report we describe threat metrics and models for characterizing threats consistently and unambiguously. The purpose of this report is to support the Operational Threat Assessment (OTA) phase of risk and vulnerability assessment. To this end, we focus on the task of characterizing cyber threats using consistent threat metrics and models. In particular, we address threat metrics and models for describing malicious cyber threats to US FCEB agencies and systems.
Date: March 1, 2012
Creator: Frye, Jason Neal; Veitch, Cynthia K.; Mateski, Mark Elliot; Michalski, John T.; Harris, James Mark; Trevino, Cassandra M. et al.
Object Type: Report
System: The UNT Digital Library

NREL Test-to-Failure Protocol [Presentation]

The presentation describes the test-to-failure protocol that was developed and piloted at NREL, stressing PV modules with multiple applications of damp heat (with bias) and thermal cycling until they fail.
Date: March 1, 2012
Creator: Hacke, P.
Object Type: Presentation
System: The UNT Digital Library
Extremely Low-Energy Design for Army Buildings: Tactical Equipment Maintenance Facility; Preprint (open access)

Extremely Low-Energy Design for Army Buildings: Tactical Equipment Maintenance Facility; Preprint

This paper describes the integrated energy optimization process for buildings and building clusters and demonstrates this process for new construction projects and building retrofits. An explanation is given of how mission critical building loads affect possible site and source energy use reduction in Army buildings.
Date: March 1, 2012
Creator: Langner, R.; Deru, M.; Zhivov, A.; Liesen, R. & Herron, D.
Object Type: Article
System: The UNT Digital Library
Review of Literature on Terminal Box Control, Occupancy Sensing Technology and Multi-zone Demand Control Ventilation (DCV) (open access)

Review of Literature on Terminal Box Control, Occupancy Sensing Technology and Multi-zone Demand Control Ventilation (DCV)

This report presents an overall review of the standard requirement, the terminal box control, occupancy sensing technology and DCV. There is system-specific guidance for single-zone systems, but DCV application guidance for multi-zone variable air volume (VAV) systems is not available. No real-world implementation case studies have been found using the CO2-based DCV. The review results also show that the constant minimum air flow set point causes excessive fan power consumption and potential simultaneous heating and cooling. Occupancy-based control (OBC) is needed for the terminal box in order to achieve deep energy savings. Key to OBC is a technology for sensing the actual occupancy of the zone served in real time. Several technologies show promise, but none currently fully meets the need with adequate accuracy and sufficiently low cost.
Date: March 1, 2012
Creator: Liu, Guopeng; Dasu, Aravind R. & Zhang, Jian
Object Type: Report
System: The UNT Digital Library
Advanced Manufacturing for a U.S. Clean Energy Economy (Fact Sheet) (open access)

Advanced Manufacturing for a U.S. Clean Energy Economy (Fact Sheet)

This fact sheet is an overview of the U.S. Department of Energy's Advanced Manufacturing Office. Manufacturing is central to our economy, culture, and history. The industrial sector produces 11% of U.S. gross domestic product (GDP), employs 12 million people, and generates 57% of U.S. export value. However, U.S. industry consumes about one-third of all energy produced in the United States, and significant cost-effective energy efficiency and advanced manufacturing opportunities remain unexploited. As a critical component of the National Innovation Policy for Advanced Manufacturing, the U.S. Department of Energy's (DOE's) Advanced Manufacturing Office (AMO) is focused on creating a fertile environment for advanced manufacturing innovation, enabling vigorous domestic development of transformative manufacturing technologies, promoting coordinated public and private investment in precompetitive advanced manufacturing technology infrastructure, and facilitating the rapid scale-up and market penetration of advanced manufacturing technologies.
Date: March 1, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Retail Building Guide for Entrance Energy Efficiency Measures (open access)

Retail Building Guide for Entrance Energy Efficiency Measures

This booklet is based on the findings of an infiltration analysis for supermarkets and large retail buildings without refrigerated cases. It enables retail building managers and engineers to calculate the energy savings potential for vestibule additions for supermarkets; and bay door operation changes in large retail stores without refrigerated cases. Retail managers can use initial estimates to decide whether to engage vendors or contractors of vestibules for pricing or site-specific analyses, or to decide whether to test bay door operation changes in pilot stores, respectively.
Date: March 1, 2012
Creator: Stein, J. & Kung, F.
Object Type: Report
System: The UNT Digital Library