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Advances in NLTE Modeling for Integrated Simulations (open access)

Advances in NLTE Modeling for Integrated Simulations

The last few years have seen significant progress in constructing the atomic models required for non-local thermodynamic equilibrium (NLTE) simulations. Along with this has come an increased understanding of the requirements for accurately modeling the ionization balance, energy content and radiative properties of different elements for a wide range of densities and temperatures. Much of this progress is the result of a series of workshops dedicated to comparing the results from different codes and computational approaches applied to a series of test problems. The results of these workshops emphasized the importance of atomic model completeness, especially in doubly excited states and autoionization transitions, to calculating ionization balance, and the importance of accurate, detailed atomic data to producing reliable spectra. We describe a simple screened-hydrogenic model that calculates NLTE ionization balance with surprising accuracy, at a low enough computational cost for routine use in radiation-hydrodynamics codes. The model incorporates term splitting, {Delta}n = 0 transitions, and approximate UTA widths for spectral calculations, with results comparable to those of much more detailed codes. Simulations done with this model have been increasingly successful at matching experimental data for laser-driven systems and hohlraums. Accurate and efficient atomic models are just one requirement for integrated …
Date: July 8, 2009
Creator: Scott, H A & Hansen, S B
Object Type: Article
System: The UNT Digital Library
Afghanistan: U.S. Foreign Assistance (open access)

Afghanistan: U.S. Foreign Assistance

The U.S. program of assistance to Afghanistan is intended to stabilize and strengthen the Afghan economic, social, political, and security environment so as to blunt popular support for extremist forces in the region. Since 2001, nearly $38 billion has been appropriated toward this effort. This report provides a "big picture" overview of the U.S. aid program and congressional action. It describes what various aid agencies report they are doing in Afghanistan. It does not address the effectiveness of their programs.
Date: July 8, 2009
Creator: Tarnoff, Curt
Object Type: Report
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 111, No. 260, Ed. 1 Wednesday, July 8, 2009 (open access)

The Altus Times (Altus, Okla.), Vol. 111, No. 260, Ed. 1 Wednesday, July 8, 2009

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Assessment of Energy Savings Potential from the Use of Demand Control Ventilation Systems in General Office Spaces in California (open access)

Assessment of Energy Savings Potential from the Use of Demand Control Ventilation Systems in General Office Spaces in California

Demand controlled ventilation (DCV) was evaluated for general office spaces in California. A medium size office building meeting the prescriptive requirements of the 2008 California building energy efficiency standards (CEC 2008) was assumed in the building energy simulations performed with the EnergyPlus program to calculate the DCV energy savings potential in five typical California climates. Three design occupancy densities and two minimum ventilation rates were used as model inputs to cover a broader range of design variations. The assumed values of minimum ventilation rates in offices without DCV, based on two different measurement methods, were 81 and 28 cfm per occupant. These rates are based on the co-author's unpublished analyses of data from EPA's survey of 100 U.S. office buildings. These minimum ventilation rates exceed the 15 to 20 cfm per person required in most ventilation standards for offices. The cost effectiveness of applying DCV in general office spaces was estimated via a life cycle cost analyses that considered system costs and energy cost reductions. The results of the energy modeling indicate that the energy savings potential of DCV is largest in the desert area of California (climate zone 14), followed by Mountains (climate zone 16), Central Valley (climate zone …
Date: July 8, 2009
Creator: Hong, Tianzhen & Fisk, William J.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 89, No. 189, Ed. 1 Wednesday, July 8, 2009 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 89, No. 189, Ed. 1 Wednesday, July 8, 2009

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
Bottled Water: FDA Safety and Consumer Protections Are Often Less Stringent Than Comparable EPA Protections for Tap Water (open access)

Bottled Water: FDA Safety and Consumer Protections Are Often Less Stringent Than Comparable EPA Protections for Tap Water

Testimony issued by the Government Accountability Office with an abstract that begins "Over the past decade, the per capita consumption of bottled water in the United States has more than doubled--from 13.4 gallons per person in 1997 to 29.3 gallons per person in 2007. With this increase have come several concerns, raised by public interest groups in recent years, over bottled water's quality and safety. For example, water quality testing conducted by some of these groups, and others, has shown that bottled water does not necessarily have lower levels of contamination than tap water. Furthermore, bottled water's potential environmental impact has also come under scrutiny. Several organizations have raised concerns about a low recycling rate for plastic water bottles, the amount of energy used to manufacture and transport the product, and the impact of groundwater extraction on local resources. This testimony is based on our June 2009 report, which is being publicly released today and addresses three issues: (1) the extent to which federal and state authorities regulate the quality of bottled water to ensure its safety, (2) the extent to which federal and state authorities regulate the accuracy of labels or claims regarding the purity and source of bottled …
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Brady Standard-Herald and Heart of Texas News (Brady, Tex.), Ed. 1 Wednesday, July 8, 2009 (open access)

Brady Standard-Herald and Heart of Texas News (Brady, Tex.), Ed. 1 Wednesday, July 8, 2009

Weekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Stewart, James E.
Object Type: Newspaper
System: The Portal to Texas History
Broadband Infrastructure Programs in the American Recovery and Reinvestment Act (open access)

Broadband Infrastructure Programs in the American Recovery and Reinvestment Act

The American Recovery and Reinvestment Act provides $7.2 billion primarily for broadband grant programs to be administered by two separate agencies: the National Telecommunications and Information Administration of the Department of Commerce and the Rural Utilities Service of the U.S. Department of Agriculture. This report is over the American Recovery and Reinvestment Act of 2009, the implementation of the Broadband programs, and issues related to the implementation.
Date: July 8, 2009
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
Broadband Loan and Grant Programs in the USDA’s Rural Utilities Service (open access)

Broadband Loan and Grant Programs in the USDA’s Rural Utilities Service

Given the large potential impact broadband access may have on the economic development of rural America, concern has been raised over a "digital divide" between rural and urban or suburban areas with respect to broadband deployment. While there are many examples of rural communities with state of the art telecommunications facilities, recent surveys and studies have indicated that, in general, rural areas tend to lag behind urban and suburban areas in broadband deployment. This report provides information on the background of broadband in rural American, pilot broadband loan and grant programs, community connect broadband grants, criticisms of the broadband programs, issues during reauthorization, appropriations, and American Recovery and Reinvestment Act.
Date: July 8, 2009
Creator: Kruger, Lennard G.
Object Type: Report
System: The UNT Digital Library
Cherokeean Herald (Rusk, Tex.), Vol. 160, No. 20, Ed. 1 Wednesday, July 8, 2009 (open access)

Cherokeean Herald (Rusk, Tex.), Vol. 160, No. 20, Ed. 1 Wednesday, July 8, 2009

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: July 8, 2009
Creator: Whitehead, Marie
Object Type: Newspaper
System: The Portal to Texas History
Classification of HTTP Attacks: A Study on the ECML/PKDD 2007 Discovery Challenge (open access)

Classification of HTTP Attacks: A Study on the ECML/PKDD 2007 Discovery Challenge

None
Date: July 8, 2009
Creator: Gallagher, B. & Eliassi-Rad, T.
Object Type: Report
System: The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 114, No. 27, Ed. 1 Wednesday, July 8, 2009 (open access)

The Clifton Record (Clifton, Tex.), Vol. 114, No. 27, Ed. 1 Wednesday, July 8, 2009

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
Climate Change Trade Measures: Considerations for U.S. Policy Makers (open access)

Climate Change Trade Measures: Considerations for U.S. Policy Makers

Correspondence issued by the Government Accountability Office with an abstract that begins "Global climate change is one of the most significant long-term policy challenges facing the United States, and policies to mitigate climate change will have important economic, social, and environmental implications. Members of Congress have introduced several bills to address the problem of climate change, many of which establish domestic emissions pricing by requiring firms that emit greenhouse gases either to pay a tax or to hold emission allowances. Whichever approach is taken, domestic emissions pricing could produce environmental benefits by encouraging U.S. firms to reduce their emissions of greenhouse gases. But such pricing could also harm U.S. firms' competitiveness, especially in energy-intensive industries where firms compete internationally. Additionally, there could be increased emissions abroad if production were to increase in other countries as a result of increased domestic costs of production resulting from a U.S. climate policy (carbon leakage). To help reduce impacts on U.S. firms and prevent carbon leakage, several climate change bills have also included trade measures or output-based rebates. The bills have included trade measures that would require importers to purchase emission allowances or pay a border tax for the greenhouse gas emissions associated with …
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Climate Change Trade Measures: Estimating Industry Effects (open access)

Climate Change Trade Measures: Estimating Industry Effects

Testimony issued by the Government Accountability Office with an abstract that begins "Countries can take varying approaches to reducing greenhouse gas emissions. Since energy use is a significant source of greenhouse gas emissions, policies designed to increase energy efficiency or induce a switch to less greenhouse-gas-intensive fuels, such as from coal to natural gas, can reduce emissions in the short term. In the long term, however, major technology changes will be needed to establish a less carbon-intensive energy infrastructure. To that end, a U.S. policy to mitigate climate change may require facilities to achieve specified reductions or employ a market-based mechanism, such as establishing a price on emissions. Several bills to implement emissions pricing in the United States have been introduced in the 110th and 111th Congresses. These bills have included both cap-and-trade and carbon tax proposals. Some of the proposed legislation also include measures intended to limit potentially adverse impacts on the international competitiveness of domestic firms."
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 28, No. 23, Ed. 1 Wednesday, July 8, 2009 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 28, No. 23, Ed. 1 Wednesday, July 8, 2009

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Mann, Rick
Object Type: Newspaper
System: The Portal to Texas History
Commerce, Justice, Science, and Related Agencies: FY2010 Appropriations (open access)

Commerce, Justice, Science, and Related Agencies: FY2010 Appropriations

This report provides an overview of actions taken by Congress to provide FY2012 appropriations for Commerce, Justice, Science, and Related Agencies(CJS) accounts.
Date: July 8, 2009
Creator: James, Nathan; Williams, Jennifer D. & Gonzales, Oscar R.
Object Type: Report
System: The UNT Digital Library
Defense Logistics: Observations on Army's Implementation of the Logistics Modernization Program (open access)

Defense Logistics: Observations on Army's Implementation of the Logistics Modernization Program

Correspondence issued by the Government Accountability Office with an abstract that begins "This letter formally transmits the briefing in response to House Report No. 110-652, which accompanied the Duncan Hunter National Defense Authorization Act for Fiscal Year 2009 (Pub. L. No. 110-417). The House report directed the Secretary of the Army to submit a report on Logistics Modernization Program (LMP) implementation at Army depots and the expected end-state capabilities of LMP to the Senate Committee on Armed Services, the House Committee on Armed Services, and GAO by January 31, 2009. The House report also directed us to review the report submitted by the Secretary of the Army for completeness and to provide a report to the Senate Committee on Armed Services and the House Committee on Armed Services by March 31, 2009."
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Disaster Assistance: Greater Coordination and an Evaluation of Programs' Outcomes Could Improve Disaster Case Management (open access)

Disaster Assistance: Greater Coordination and an Evaluation of Programs' Outcomes Could Improve Disaster Case Management

A letter report issued by the Government Accountability Office with an abstract that begins "As a result of the unprecedented damage caused by Hurricanes Katrina and Rita in 2005, the federal government, for the first time, funded several disaster case management programs. These programs help victims access services for disaster-related needs. GAO was asked to review (1) steps the federal government took to support disaster case management programs after the hurricanes, (2) the extent to which federal agencies oversaw the implementation of these programs, (3) challenges case management agencies experienced in delivering disaster case management services, and (4) how these programs will inform the development of a federal case management program for future disasters. GAO reviewed relevant laws and guidance, obtained data from two programs, conducted site visits to Louisiana and Mississippi, and interviewed case management providers and officials from federal and state agencies involved in disaster case management."
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, July 8, 2009 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, July 8, 2009

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: July 8, 2009
Creator: Pittman, Jerry & Wray, Kelly
Object Type: Newspaper
System: The Gateway to Oklahoma History
Final Scientific/Technical Report, DE-FG02-06ER64171, Integrated Nucleic Acid System for In-Field Monitoring of Microbial Community Dynamics and Metabolic Activity – Subproject to Co-PI Eric E. Roden (open access)

Final Scientific/Technical Report, DE-FG02-06ER64171, Integrated Nucleic Acid System for In-Field Monitoring of Microbial Community Dynamics and Metabolic Activity – Subproject to Co-PI Eric E. Roden

This report summarizes research conducted in conjunction with a project entitled “Integrated Nucleic Acid System for In-Field Monitoring of Microbial Community Dynamics and Metabolic Activity”, which was funded through the Integrative Studies Element of the former NABIR Program (now the Environmental Remediation Sciences Program) within the Office of Biological and Environmental Research. Dr. Darrell Chandler (originally at Argonne National Laboratory, now with Akonni Biosystems) was the overall PI/PD for the project. The overall project goals were to (1) apply a model iron-reducer and sulfate-reducer microarray and instrumentation systems to sediment and groundwater samples from the Scheibe et al. FRC Area 2 field site, UMTRA sediments, and other DOE contaminated sites; (2) continue development and expansion of a 16S rRNA/rDNA¬-targeted probe suite for microbial community dynamics as new sequences are obtained from DOE-relevant sites; and (3) address the fundamental molecular biology and analytical chemistry associated with the extraction, purification and analysis of functional genes and mRNA in environmental samples. Work on the UW subproject focused on conducting detailed batch and semicontinuous culture reactor experiments with uranium-contaminated FRC Area 2 sediment. The reactor experiments were designed to provide coherent geochemical and microbiological data in support of microarray analyses of microbial communities in …
Date: July 8, 2009
Creator: Roden, Eric E.
Object Type: Report
System: The UNT Digital Library
Fiscal Year 2008 U.S. Government Financial Statements: Federal Government Faces New and Continuing Financial Management and Fiscal Challenges (open access)

Fiscal Year 2008 U.S. Government Financial Statements: Federal Government Faces New and Continuing Financial Management and Fiscal Challenges

Testimony issued by the Government Accountability Office with an abstract that begins "GAO annually audits the consolidated financial statements of the U.S. government (CFS). The Congress and the President need reliable, useful, and timely financial and performance information to make sound decisions and conduct effective oversight of federal government programs and policies. Except for the 2008 and 2007 Statements of Social Insurance, GAO has been unable to provide assurance on the reliability of the CFS due primarily to inadequate systems and lack of sufficient, reliable evidence to support certain material information in the CFS. Unless these weaknesses are adequately addressed, they will, among other things, (1) hamper the federal government's ability to reliably report a significant portion of its assets, liabilities, costs, and other related information; and (2) affect the federal government's ability to reliably measure the full cost as well as the financial and nonfinancial performance of certain programs and activities. This testimony presents the results of GAO's audit of the CFS for fiscal year 2008 and discusses federal financial management challenges and the long-term fiscal outloo"
Date: July 8, 2009
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Flux Control in Networks of Diffusion Paths (open access)

Flux Control in Networks of Diffusion Paths

A class of optimization problems in networks of intersecting diffusion domains of a special form of thin paths has been considered. The system of equations describing stationary solutions is equivalent to an electrical circuit built of intersecting conductors. The solution of an optimization problem has been obtained and extended to the analogous electrical circuit. The interest in this network arises from, among other applications, an application to wave-particle diffusion through resonant interactions in plasma.
Date: July 8, 2009
Creator: Fisch, A. I. Zhmoginov and N. J.
Object Type: Report
System: The UNT Digital Library
[Funeral Program for Ray DeVerges Minor, July 8, 2009] (open access)

[Funeral Program for Ray DeVerges Minor, July 8, 2009]

Funeral program for Mrs. Ray DeVerges Minor, born April 6, 1920 and died July 2, 2009. The funeral was held July 8, 2009 at Lewis Funeral Home Chapel, officiated by Rev. Joseph Tilly. Funeral arrangements were made through Lewis Funeral Home and she was buried in Fort Sam Houston National Cemetery in San Antonio, Texas.
Date: July 8, 2009
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
Ghana: Background and U.S. Relations (open access)

Ghana: Background and U.S. Relations

This report provides information on current developments in Ghana and Ghana's relations with the United States, which are close. It describes the purpose of President Barack Obama's forthcoming trip to Ghana, which will focus on issues of good governance and socio-economic and political development, and characterizes the current state of play in bilateral relations. It also summarizes the policy agenda of Ghana's president, John Atta Mills, who won office by a narrow margin in elections in late 2008. The dynamics of that election are described in the report, as are recent policy-centered developments, economic challenges and performance, and socio-economic prospects. Ghana's international relations and bilateral development cooperation with the United States are also covered in the report.
Date: July 8, 2009
Creator: Cook, Nicolas
Object Type: Report
System: The UNT Digital Library