Information on Selected Issues Concerning Banking Activities (open access)

Information on Selected Issues Concerning Banking Activities

Correspondence issued by the Government Accountability Office with an abstract that begins "This letter responds to Congress's request for information on (1) selected federal expenditures, policies, and programs that affect the U.S. banking industry and (2) certain banking industry trends. These include the savings and loan industry crisis, trade finance, tax policies, and profits and executive compensation. Congress's letter also asked us for information on bank fees; as agreed with Congressional staff, we will discuss this topic in a separate report. On December 11, 2006, we briefed Congressional staff on information gathered during our preliminary work. This letter summarizes and updates the information presented at the briefing."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
DOD and VA Outpatient Pharmacy Data: Computable Data Are Exchanged for Some Shared Patients, but Additional Steps Could Facilitate Exchanging These Data for All Shared Patients (open access)

DOD and VA Outpatient Pharmacy Data: Computable Data Are Exchanged for Some Shared Patients, but Additional Steps Could Facilitate Exchanging These Data for All Shared Patients

Correspondence issued by the Government Accountability Office with an abstract that begins "Since 1998, the Department of Defense (DOD) and the Department of Veterans Affairs (VA) have been working to electronically exchange patient health data, including outpatient pharmacy data, cross their electronic health information systems. Exchanging outpatient pharmacy data is important for DOD and VA because certain DOD and VA patients, known as shared patients, receive health care from both agencies. Clinicians' access to complete health information from both agencies' health information systems could assist clinicians in making more informed medical decisions and help prevent adverse medication reactions--which include detrimental or unintended reactions when multiple medications are taken together and allergic reactions to a medication. In March 2004, DOD and VA began collaborating on a long-term initiative to make their outpatient pharmacy data computable. Computable data refer to data that are in a format that a computer application can act on: for example, to provide automatic checks for adverse medication reactions or to plot graphs of changes in vital signs such as blood pressure. In reporting on this initiative in the past, GAO noted that the agencies have experienced delays in their efforts to begin exchanging computable outpatient pharmacy data. …
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
NIH Conflict of Interest: Recusal Policies for Senior Employees Need Clarification (open access)

NIH Conflict of Interest: Recusal Policies for Senior Employees Need Clarification

A letter report issued by the Government Accountability Office with an abstract that begins "To safeguard the integrity of National Institutes of Health (NIH) research, government employees who have significant decision-making responsibilities and peer reviewers who evaluate the scientific and technical merit of research funding requests should be free from conflicts of interest. One method to resolve a conflict of interest is recusal, which is accomplished by not participating in work that will affect a personal interest or involves a personal relationship. GAO reported on (1) how NIH informs senior employees about recusal and what the requirements are for them to notify supervisors, and (2) how NIH informs peer reviewers about recusal and how NIH monitors their compliance with recusals. GAO reviewed relevant NIH policy manual chapters and NIH guidance and interviewed NIH officials. GAO selected NIH's National Cancer Institute and National Institute of Allergy and Infectious Diseases for the review because they have the largest budgets at NIH."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Aviation Security: Federal Efforts to Secure U.S.-Bound Air Cargo Are in the Early Stages and Could Be Strengthened (open access)

Aviation Security: Federal Efforts to Secure U.S.-Bound Air Cargo Are in the Early Stages and Could Be Strengthened

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Homeland Security (DHS) has primary responsibility for securing air cargo transported into the United States from another country, referred to as inbound air cargo, and preventing implements of terrorism from entering the country. GAO examined (1) what actions DHS has taken to secure inbound air cargo, and how, if at all, these efforts could be strengthened; and (2) what practices the air cargo industry and foreign governments have adopted that could enhance DHS's efforts to strengthen inbound air cargo security, and to what extent DHS has worked with foreign governments to enhance their air cargo security efforts. To conduct this study, GAO reviewed relevant DHS documents, interviewed DHS officials, and conducted site visits to seven countries in Europe and Asia."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Medicare: Focus on Physician Practice Patterns Can Lead to Greater Program Efficiency (open access)

Medicare: Focus on Physician Practice Patterns Can Lead to Greater Program Efficiency

A letter report issued by the Government Accountability Office with an abstract that begins "The Medicare Prescription Drug, Improvement, and Modernization Act of 2003 (MMA) directed GAO to study the compensation of physicians in traditional fee-for service (FFS) Medicare. GAO explored linking physician compensation to efficiency--defined as providing and ordering a level of services that is sufficient to meet a patient's health care needs but not excessive, given the patient's health status. In this report, GAO (1) estimates the prevalence in Medicare of physicians who are likely to practice inefficiently, (2) examines physician-focused strategies used by health care purchasers to encourage efficiency, and (3) examines the potential for the Centers for Medicare and Medicaid Services (CMS) to profile physicians for efficiency and use the results. To do this, GAO developed a methodology using 2003 Medicare claims data to compare generalist physicians' Medicare practices with those of their peers in 12 metropolitan areas. GAO also examined 10 health care purchasers that profile physicians for efficiency."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Defense Management: High-Level Leadership Commitment and Actions Are Needed to Address Corrosion Issues (open access)

Defense Management: High-Level Leadership Commitment and Actions Are Needed to Address Corrosion Issues

A letter report issued by the Government Accountability Office with an abstract that begins "Corrosion can have a deleterious effect on military equipment and infrastructure in terms of cost, readiness, and safety. Recognizing this concern, the Bob Stump National Defense Authorization Act of Fiscal Year 2003 required the Department of Defense (DOD) to designate an official or organization to oversee and coordinate efforts to prevent and mitigate corrosion. Recently, the National Defense Authorization Act of Fiscal Year 2006 directed GAO to examine the effectiveness of DOD's corrosion prevention and mitigation programs. In addition, GAO evaluated the extent to which DOD has incorporated corrosion prevention planning in acquiring weapon systems. GAO reviewed strategy documents, reviewed corrosion prevention planning for 51 recent major weapon system acquisitions, and interviewed DOD and military service officials."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Privacy: Lessons Learned about Data Breach Notification (open access)

Privacy: Lessons Learned about Data Breach Notification

A letter report issued by the Government Accountability Office with an abstract that begins "A May 2006 data breach at the Department of Veterans Affairs (VA) and other similar incidents since then have heightened awareness of the importance of protecting computer equipment containing personally identifiable information and responding effectively to a breach that poses privacy risks. GAO's objective was to identify lessons learned from the VA data breach and other similar federal data breaches regarding effectively notifying government officials and affected individuals about data breaches. To address this objective, GAO analyzed documentation and interviewed officials at VA and five other agencies regarding their responses to data breaches and their progress in implementing standardized data breach notification procedures. The cases at the other agencies were chosen because, like the VA case, they involved loss or theft of computing equipment and relatively large numbers of affected individuals (10,000 or more)."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Financial Literacy and Education Commission: Further Progress Needed to Ensure an Effective National Strategy (open access)

Financial Literacy and Education Commission: Further Progress Needed to Ensure an Effective National Strategy

Testimony issued by the Government Accountability Office with an abstract that begins "The Financial Literacy and Education Improvement Act created, in December 2003, the Financial Literacy and Education Commission. This statement is based on a report issued in December 2006, which responded to the act's mandate that GAO assess the Commission's progress in (1) developing a national strategy; (2) developing a Web site and hotline; and (3) coordinating federal efforts and promoting partnerships among the federal, state, local, nonprofit, and private sectors. To address these objectives, GAO analyzed Commission documents, interviewed its member agencies and private financial literacy organizations, and benchmarked the national strategy against GAO's criteria for such strategies."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Defense Acquisitions: Missile Defense Agency's Flexibility Reduces Transparency of Program Cost (open access)

Defense Acquisitions: Missile Defense Agency's Flexibility Reduces Transparency of Program Cost

Testimony issued by the Government Accountability Office with an abstract that begins "Over the next 5 years the Missile Defense Agency (MDA) expects to invest $49 billion in the Ballistic Missile Defense (BMD) system's development and fielding. MDA's strategy is to field new capabilities in 2-year blocks. In January 2006, MDA initiated its second block--Block 2006--to protect against attacks from North Korea and the Middle East. Congress requires GAO to assess MDA's progress annually. GAO's March 2007 report addressed MDA's progress during fiscal year 2006 and followed up on program oversight issues and the current status of MDA's quality assurance program. GAO assessed the progress of each element being developed by MDA, examined acquisition laws applicable to major acquisition programs, and reviewed the impact of implemented quality initiatives."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Nursing Workforce: HHS Needs Methodology to Identify Facilities with a Critical Shortage of Nurses (open access)

Nursing Workforce: HHS Needs Methodology to Identify Facilities with a Critical Shortage of Nurses

Correspondence issued by the Government Accountability Office with an abstract that begins "Registered nurses (RN) are the single largest group of health care providers in the United States, with more than 2.4 million people employed as RNs in 2004. Basic RN training may be completed through a 2-year associate's degree, a 3-year diploma, or a 4-year bachelor's degree. RNs work in a wide variety of settings, including hospitals, nursing homes, physicians' offices, and public health clinics. Reports by government agencies and others have raised concerns about nurse shortages. In 2001, we reported on an emerging shortage of RNs to fill vacant positions across a range of health care settings. The Health Resources and Services Administration (HRSA), an agency in the Department of Health and Human Services (HHS), estimated that the supply of RNs nationally fell approximately 111,000 short of demand in 2000 (5.5 percent) and projected the gap would widen in the ensuing years. A shortage of RNs, like general workforce shortages, occurs when the demand for RNs exceeds supply. The supply of RNs, or the number of RNs employed, is influenced by multiple factors, including the size of the overall labor force, the number of licensed RNs choosing to …
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Information Security: FBI Needs to Address Weaknesses in Critical Network (open access)

Information Security: FBI Needs to Address Weaknesses in Critical Network

A letter report issued by the Government Accountability Office with an abstract that begins "The Federal Bureau of Investigation (FBI) relies on a critical network to electronically communicate, capture, exchange, and access law enforcement and investigative information. Misuse or interruption of this critical network, or disclosure of the information traversing it, would impair FBI's ability to fulfill its missions. Effective information security controls are essential for ensuring that information technology resources and information are adequately protected from inadvertent or deliberate misuse, fraudulent use, disclosure, modification, or destruction. GAO was asked to assess information security controls for one of FBI's critical networks. To assess controls, GAO conducted a vulnerability assessment of the internal network and evaluated the bureau's information security program associated with the network operating environment. This report summarizes weaknesses in information security controls in one of FBI's critical networks."
Date: April 30, 2007
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
Performances of Multi-Level and Multi-Component Compressed BitmapIndices (open access)

Performances of Multi-Level and Multi-Component Compressed BitmapIndices

This paper presents a systematic study of two large subsetsof bitmap indexing methods that use multi-component and multi-levelencodings. Earlier studies on bitmap indexes are either empirical or foruncompressed versions only. Since most of bitmap indexes in use arecompressed, we set out to study the performance characteristics of thesecompressed indexes. To make the analyses manageable, we choose to use aparticularly simple, but efficient, compression method called theWord-Aligned Hybrid (WAH) code. Using this compression method, a numberof bitmap indexes are shown to be optimal because their worst-case timecomplexities for answering a query is a linear function of the number ofhits. Since compressed bitmap indexes behave drastically different fromuncompressed ones, our analyses also lead to a number of new methods thatare much more efficient than commonly used ones. As a validation for theanalyses, we implement a number of the best methods and measure theirperformance against well-known indexes. The fastest new methods arepredicted and observed to be 5 to 10 times faster than well-knownindexing methods.
Date: April 30, 2007
Creator: Wu, Kesheng; Stockinger, Kurt & Shoshani, Arie
Object Type: Report
System: The UNT Digital Library
Stress Corrosion Cracking Response of 304 Stainless Steel in ASerated and Dearated Water (open access)

Stress Corrosion Cracking Response of 304 Stainless Steel in ASerated and Dearated Water

Scoping stress corrosion cracking (SCC) tests of 304 stainless steel (SS) were performed in 75 C and 250 C aerated pressurized water (APW) and 250 C deaerated pressurized water (DPW). The 250 C APW environment was used to initiate intergranular stress corrosion cracking (IGSCC) and then the water was deaerated and hydrogenated to see if IGSCC continued in 250 C DPW. Tests were performed with and without 200 ppb SO{sub 4}{sup =}. The 304 SS test materials were evaluated in either the as-received, heavily sensitized (649 C for 1 h), fully sensitized (1099 C for 1 h/water quench/621 C for 17 h) or 20% cold rolled condition. At the beginning of each test sequence, specimens were subjected to continuous cycling with a 500s rise/500s fall or a 5000s rise/500s fall to promote the transition from a transgranular (TG) precrack to an IG crack. After generating a uniform crack under continuous cycling conditions, a trapezoidal waveform with 500s rise/9000s hold/500s fall was used to characterize the SCC behavior. Crack growth rates (CGRs) were monitored continuously with the electric potential drop (EPD) method and were corrected based on physical crack length measurements obtained when specimens were destructively evaluated. Continuous cycling with a …
Date: April 30, 2007
Creator: Mills, W. J.
Object Type: Article
System: The UNT Digital Library
FINAL REPORT ON CONTROL ALGORITHM TO IMPROVE THE PARTIAL-LOAD EFFICIENCY OFSURFACE PM MACHINES WITH FRACTIONAL-SLOT CONCENTRATED WINDINGS (open access)

FINAL REPORT ON CONTROL ALGORITHM TO IMPROVE THE PARTIAL-LOAD EFFICIENCY OFSURFACE PM MACHINES WITH FRACTIONAL-SLOT CONCENTRATED WINDINGS

Surface permanent magnet (SPM) synchronous machines using fractional-slot concentrated windings are being investigated as candidates for high-performance traction machines for automotive electric propulsion systems. It has been shown analytically and experimentally that such designs can achieve very wide constant-power speed ratios (CPSR) [1,2]. This work has shown that machines of this type are capable of achieving very low cogging torque amplitudes as well as significantly increasing the machine power density [3-5] compared to SPM machines using conventional distributed windings. High efficiency can be achieved in this class of SPM machine by making special efforts to suppress the eddy-current losses in the magnets [6-8], accompanied by efforts to minimize the iron losses in the rotor and stator cores. Considerable attention has traditionally been devoted to maximizing the full-load efficiency of traction machines at their rated operating points and along their maximum-power vs. speed envelopes for higher speeds [9,10]. For example, on-line control approaches have been presented for maximizing the full-load efficiency of PM synchronous machines, including the use of negative d-axis stator current to reduce the core losses [11,12]. However, another important performance specification for electric traction applications is the machine's efficiency at partial loads. Partial-load efficiency is particularly important if …
Date: April 30, 2007
Creator: Reddy, P.B. & Jahns, T.M.
Object Type: Report
System: The UNT Digital Library
Changes in vigorous physical activity and incident diabetes inmale runners (open access)

Changes in vigorous physical activity and incident diabetes inmale runners

We examined the dose-response relationship between changes in reported vigorous exercise (running distance, {Delta}km/wk) and self-reported physician diagnosed diabetes in 25,988 men followed prospectively for (mean {+-} SD) 7.8 {+-} 1.8 years. Logistic regression analyses showed that the log odds for diabetes declined significantly in relation to men's {Delta}km/wk (coefficient {+-} SE: -0.012 {+-} 0.004, P < 0.01), which remained significant when adjusted for BMI (-0.018 {+-} 0.003, P < 0.0001). The decline in the log odds for diabetes was related to the distance run at the end of follow-up when adjusted for baseline distance, with (-0.024 {+-} 0.005, P < 0.0001) or without (-0.027 {+-} 0.005, P < 0.0001) adjustment for BMI. Baseline distance was unrelated to diabetes incidence when adjusted for the distance at the end of follow-up. Compared to men who ran <8 km/wk at the end of follow-up, incidence rates in those who ran {ge} 8 km/wk were 95% lower between 35-44 yrs old (P < 0.0001), 92% lower between 45-54 yrs old (P < 0.0001), 87% lower between 55 and 64 years old (P < 0.0001), and 46% lower between 65-75 yrs old (P = 0.30). For the subset of 6,208 men who maintained the …
Date: April 30, 2007
Creator: Williams, Paul T.
Object Type: Article
System: The UNT Digital Library
The Ability of the United States Federal Radiological Monitoring and Assessment Center to Collect and Disseminate Environmental Measurements during Radiological Emergencies (open access)

The Ability of the United States Federal Radiological Monitoring and Assessment Center to Collect and Disseminate Environmental Measurements during Radiological Emergencies

The Federal Radiological Monitoring and Assessment Center (FRMAC) is the United States’ response organization for radiological emergencies. The FRMAC is structured as an operations center and employs the combined resources of several federal agencies to respond to any disaster resulting in the release of radioactivity. The mission of the FRMAC is to support state and local authorities in the gathering of environmental data using an array of survey equipment ranging from alpha probes, beta/gamma probes, and high-purity germanium (HPGe) spectroscopy to the gathering of physical samples. Once collected, the data are projected on maps to assist public officials make protective action decisions. In addition to the accumulation of data, it is the legal obligation of the FRMAC to keep archival records of all data points and their actions. During an event, it is conceivable that hundreds to thousands of sample points will be recorded over a relatively short time. It is in the interest of the federal government and public that the information collected be put to the best use as fast as possible. Toward this end, the Remote Sensing Laboratory, working under the direction of the United States Department of Energy’s National Nuclear Security Administration, is investigating the use …
Date: April 30, 2007
Creator: Essex, Craig Marianno and James
Object Type: Article
System: The UNT Digital Library
Exercises Abroad: How Differing National Experiences are Reflected in Emergency Response Planning and Exercises (open access)

Exercises Abroad: How Differing National Experiences are Reflected in Emergency Response Planning and Exercises

Recently a member of the U.S. Department of Energy’s (DOE) Consequence Management Response Team took part in outreaches and an exercise in different foreign countries. In Brazil and South Korea, the outreaches revolved around a nuclear power plant exercise. In Canada, participation was limited to a table top Consequence Management exercise. This talk will briefly discuss each event and resulting pertinent observations. In each case, it became evident that governments respond to disasters very differently, and that these differences are not only culturally based, but also influenced by each government’s respective experience in dealing with natural disasters.
Date: April 30, 2007
Creator: Marianno, Craig
Object Type: Article
System: The UNT Digital Library
Retrieving Temperature and Moisture Profiles from AERI Radiance Observations: AERIPROF Value-Added Product Technical Description Revision 1 (open access)

Retrieving Temperature and Moisture Profiles from AERI Radiance Observations: AERIPROF Value-Added Product Technical Description Revision 1

This document explains the procedure to retrieve temperature and moisture profiles from high-spectral resolution infrared radiance data measured by the U.S. Department Of Energy (DOE) Atmospheric Radiation (ARM) Program’s atmospheric emitted radiance interferometer (AERI) instrument. The technique has been named the AERIPROF thermodynamic retrieval algorithm. The software has been developed over the last decade at the University of Wisconsin-Madison and has matured into an ARM Value-Added Procedure. This document will describe the AERIPROF retrieval procedure, outline the algorithm routines, discuss the software heritage, and, finally, provide references with further documentation.
Date: April 30, 2007
Creator: Feltz, W. F.; Howell, H. B.; Knuteson, R. O.; Comstock, J. M.; Mahon, R.; Turner, D. D. et al.
Object Type: Report
System: The UNT Digital Library
Test, Evaluation, and Demonstration of Practical Devices/Systems to Reduce Aerodynamic Drag of Tractor/Semitrailer Combination Unit Trucks (open access)

Test, Evaluation, and Demonstration of Practical Devices/Systems to Reduce Aerodynamic Drag of Tractor/Semitrailer Combination Unit Trucks

Class 8 heavy-duty trucks account for over three-quarters of the total diesel fuel used by commercial trucks (trucks with GVWRs more than 10,000 pounds) in the United States each year. At the highway speeds at which these trucks travel (i.e., 60 mph or greater), aerodynamic drag is a major part of total horsepower needed to move the truck down the highway, Reductions in aerodynamic drag can yield measurable benefits in fuel economy through the use of relatively inexpensive and simple devices. The goal of this project was to examine a number of aerodynamic drag reduction devices and systems and determine their effectiveness in reducing aerodynamic drag of Class 8 tractor/semitrailer combination-units, thus contributing to DOE's goal of reducing transportation petroleum use. The project team included major heavy truck manufacturers in the United States, along with the management and industry expertise of the Truck Manufacturers Association as the lead investigative organization. The Truck Manufacturers Association (TMA) is the national trade association representing the major North American manufacturers of Class 6-8 trucks (GVWRs over 19,500 lbs). Four major truck manufacturers participated in this project with TMA: Freightliner LLC; International Truck and Engine Corporation; Mack Trucks Inc.; and Volvo Trucks North America, Inc. …
Date: April 30, 2007
Creator: Smith, Scott; Younessi, Karla; Markstaller, Matt; Schlesinger, Dan; Bhatnagar, Bhaskar; Smith, Donald et al.
Object Type: Report
System: The UNT Digital Library
The Search for Reconnection and Helicity During Formation of a Bounded Spheromak (open access)

The Search for Reconnection and Helicity During Formation of a Bounded Spheromak

Recent results from investigations using insertable magnetic probes at the Sustained Spheromak Physics Experiment (SSPX) [E. B. Hooper et al., Nucl. Fusion 39, 863 (1999)] are presented. Experiments were carried out during pre-programmed, constant amplitude coaxial gun current pulses, where magnetic field increases stepwise with every pulse, but eventually saturates. Magnetic traces from the probe, which is electrically isolated from the plasma and spans the flux conserver radius, indicate there is a time lag at every pulse between the response to the current rise in the open flux surfaces (intercepting the electrodes) and the closed flux surfaces (linked around the open ones). This is interpreted as the time to buildup enough helicity in the open flux surfaces before reconnecting and merging with the closed ones. Future experimental and diagnostic plans to directly estimate the helicity in the open flux surfaces and measure reconnection are briefly discussed.
Date: April 30, 2007
Creator: Romero-Talamas, C. A.; McLean, H. S.; Hooper, E. B.; Wood, R. D.; LoDestro, L. L. & Moller, J. M.
Object Type: Article
System: The UNT Digital Library
Borehole seismic monitoring of seismic stimulation at OccidentalPermian Ltd's -- South Wason Clear Fork Unit (open access)

Borehole seismic monitoring of seismic stimulation at OccidentalPermian Ltd's -- South Wason Clear Fork Unit

Seismic stimulation is a proposed enhanced oil recovery(EOR) technique which uses seismic energy to increase oil production. Aspart of an integrated research effort (theory, lab and field studies),LBNL has been measuring the seismic amplitude of various stimulationsources in various oil fields (Majer, et al., 2006, Roberts,et al.,2001, Daley et al., 1999). The amplitude of the seismic waves generatedby a stimulation source is an important parameter for increased oilmobility in both theoretical models and laboratory core studies. Theseismic amplitude, typically in units of seismic strain, can be measuredin-situ by use of a borehole seismometer (geophone). Measuring thedistribution of amplitudes within a reservoir could allow improved designof stimulation source deployment. In March, 2007, we provided in-fieldmonitoring of two stimulation sources operating in Occidental (Oxy)Permian Ltd's South Wasson Clear Fork (SWCU) unit, located near DenverCity, Tx. The stimulation source is a downhole fluid pulsation devicedeveloped by Applied Seismic Research Corp. (ASR). Our monitoring used aborehole wall-locking 3-component geophone operating in two nearbywells.
Date: April 30, 2007
Creator: Daley, Tom & Majer, Ernie
Object Type: Report
System: The UNT Digital Library
Potential Impacts of Leakage from Black Rock Reservoir on the Hanford Site Unconfined Aquifer: Initial Hypothetical Simulations of Flow and Contaminant Transport - Errata (open access)

Potential Impacts of Leakage from Black Rock Reservoir on the Hanford Site Unconfined Aquifer: Initial Hypothetical Simulations of Flow and Contaminant Transport - Errata

Errata for report documenting initial scoping calculations investigating the potential impacts on the Hanford unconfined aquifer resulting from leakage from the proposed Black Rock Reservoir to the west. These calculations were performed for the U.S. Bureau of Reclamation.
Date: April 30, 2007
Creator: Freedman, Vicky L.
Object Type: Report
System: The UNT Digital Library
Roadmap for Development of Natural Gas Vehicle Fueling Infrastructructure and Analysis of Vehicular Natural Gas Consumption by Niche Sector (open access)

Roadmap for Development of Natural Gas Vehicle Fueling Infrastructructure and Analysis of Vehicular Natural Gas Consumption by Niche Sector

Vehicular natural gas consumption is on the rise, totaling nearly 200 million GGEs in 2005, despite declines in total NGV inventory in recent years. This may be attributed to greater deployment of higher fuel use medium- and heavy-duty NGVs as compared to the low fuel use of the natural gas-powered LDVs that exited the market through attrition, many of which were bi-fuel. Natural gas station counts are down to about 1100 from their peak of about 1300. Many of the stations that closed were under-utilized or not used at all while most new stations were developed with greater attention to critical business fundamentals such as site selection, projected customer counts, peak and off-peak fueling capacity needs and total station throughput. Essentially, the nation's NGV fueling infrastructure has been--and will continue--going through a 'market correction'. While current economic fundamentals have shortened payback and improved life-cycle savings for investment in NGVs and fueling infrastructure, a combination of grants and other financial incentives will still be needed to overcome general fleet market inertia to maintain status quo. Also imperative to the market's adoption of NGVs and other alternative fueled vehicle and fueling technologies is a clear statement of long-term federal government commitment to …
Date: April 30, 2007
Creator: Yborra, Stephen C.
Object Type: Report
System: The UNT Digital Library
Status of the NIF Project (open access)

Status of the NIF Project

Ground was broken for the National Ignition Facility, a stadium-sized complex, in 1997. When complete, the project will contain a 192-beam, 1.8-megajoule, 500-terawatt laser system adjoining a 10-meter-diameter target chamber with room for nearly 100 experimental diagnostics. NIF's beams will compress and heat small capsules containing a mixture of hydrogen isotopes of deuterium and tritium. These targets will undergo nuclear fusion, producing more energy than the energy in the laser pulse and achieving scientific breakeven. NIF experiments will allow scientists to study physical processes at temperatures approaching 100 million degrees Kelvin and 100 billion times atmospheric pressure--conditions that exist naturally only in the interior of stars and in nuclear weapon detonations.
Date: April 30, 2007
Creator: Moses, Edward
Object Type: Article
System: The UNT Digital Library