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Thermodynamically Tuned Nanophase Materials for reversible Hydrogen storage
This program was devoted to significantly extending the limits of hydrogen storage technology for practical transportation applications. To meet the hydrogen capacity goals set forth by the DOE, solid-state materials consisting of light elements were developed. Many light element compounds are known that have high capacities. However, most of these materials are thermodynamically too stable, and they release and store hydrogen much too slowly for practical use. In this project we developed new light element chemical systems that have high hydrogen capacities while also having suitable thermodynamic properties. In addition, we developed methods for increasing the rates of hydrogen exchange in these new materials. The program has significantly advanced (1) the application of combined hydride systems for tuning thermodynamic properties and (2) the use of nanoengineering for improving hydrogen exchange. For example, we found that our strategy for thermodynamic tuning allows both entropy and enthalpy to be favorably adjusted. In addition, we demonstrated that using porous supports as scaffolds to confine hydride materials to nanoscale dimensions could improve rates of hydrogen exchange by > 50x. Although a hydrogen storage material meeting the requirements for commercial development was not achieved, this program has provided foundation and direction for future efforts. More …
Date:
February 28, 2010
Creator:
Liu, Ping & Vajo, John J.
Object Type:
Report
System:
The UNT Digital Library
Time-windows-based filtering method for near-surface detection of leakage from geologic carbon sequestration sites
We use process-based modeling techniques to characterize the temporal features of natural biologically controlled surface CO{sub 2} fluxes and the relationships between the assimilation and respiration fluxes. Based on these analyses, we develop a signal-enhancing technique that combines a novel time-window splitting scheme, a simple median filtering, and an appropriate scaling method to detect potential signals of leakage of CO{sub 2} from geologic carbon sequestration sites from within datasets of net near-surface CO{sub 2} flux measurements. The technique can be directly applied to measured data and does not require subjective gap filling or data-smoothing preprocessing. Preliminary application of the new method to flux measurements from a CO{sub 2} shallow-release experiment appears promising for detecting a leakage signal relative to background variability. The leakage index of ?2 was found to span the range of biological variability for various ecosystems as determined by observing CO{sub 2} flux data at various control sites for a number of years.
Date:
February 28, 2010
Creator:
Pan, L.; Lewicki, J. L.; Oldenburg, C. M. & Fischer, M. L.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 134, No. 36, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
January 28, 2010
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 112, No. 38, Ed. 1 Thursday, January 28, 2010
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Archer County News (Archer City, Tex.), No. 4, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
Ballast Water Management to Combat Invasive Species
This report provides background on various approaches to ballast water management and reviews current ballast water management laws and programs.
Date:
January 28, 2010
Creator:
Buck, Eugene H.
Object Type:
Report
System:
The UNT Digital Library
The Bastrop Advertiser (Bastrop, Tex.), Vol. 156, No. 95, Ed. 1 Thursday, January 28, 2010
Semi-weekly newspaper from Bastrop, Texas that includes local, state and national news along with advertising.
Date:
January 28, 2010
Creator:
Wright, Cyndi
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 20, Ed. 1 Thursday, January 28, 2010
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
Clements, Clifford E.
Object Type:
Newspaper
System:
The Portal to Texas History
Bishop Paiute Weatherization Training Program
The DOE Weatherization Training Grant assisted Native American trainees in developing weatherization competencies, creating employment opportunities for Bishop Paiute tribal members in a growing field. The trainees completed all the necessary training and certification requirements and delivered high-quality weatherization services on the Bishop Paiute Reservation. Six tribal members received all three certifications for weatherization; four of the trainees are currently employed. The public benefit includes (1) development of marketable skills by low-income Native individuals, (2) employment for low-income Native individuals in a growing industry, and (3) economic development opportunities that were previously not available to these individuals or the Tribe.
Date:
January 28, 2010
Creator:
Hernandez, Carlos
Object Type:
Report
System:
The UNT Digital Library
The Canadian Record (Canadian, Tex.), Vol. 120, No. 4, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
January 28, 2010
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
CHARACTERIZATION OF CORE SAMPLE COLLECTED FROM THE SALTSTONE DISPOSAL FACILITY
During the month of September 2008, grout core samples were collected from the Saltstone Disposal Facility, Vault 4, cell E. This grout was placed during processing campaigns in December 2007 from Deliquification, Dissolution and Adjustment Batch 2 salt solution. The 4QCY07 Waste Acceptance Criteria sample collected on 11/16/07 represents the salt solution in the core samples. Core samples were retrieved to initiate the historical database of properties of emplaced Saltstone and to demonstrate the correlation between field collected and laboratory prepared samples. Three samples were collected from three different locations. Samples were collected using a two-inch diameter concrete coring bit. In April 2009, the core samples were removed from the evacuated sample container, inspected, transferred to PVC containers, and backfilled with nitrogen. Samples furthest from the wall were the most intact cylindrically shaped cored samples. The shade of the core samples darkened as the depth of coring increased. Based on the visual inspection, sample 3-3 was selected for all subsequent analysis. The density and porosity of the Vault 4 core sample, 1.90 g/cm{sup 3} and 59.90% respectively, were comparable to values achieved for laboratory prepared samples. X-ray diffraction analysis identified phases consistent with the expectations for hydrated Saltstone. Microscopic analysis …
Date:
January 28, 2010
Creator:
Cozzi, A. & Duncan, A.
Object Type:
Report
System:
The UNT Digital Library
The Child Care and Development Block Grant: Background and Funding
This report provides information about the Background and Funding of the Child Care and Development Block Grant.
Date:
January 28, 2010
Creator:
Lynch, Karen E.
Object Type:
Report
System:
The UNT Digital Library
Comanche Chief (Comanche, Tex.), No. 40, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
Community Development Block Grant Funds in Disaster Relief and Recovery
This report discusses how Community Development Block Grant (CDBG) programs are funded by Congress and what they have been used for in recent years: recovery efforts following terrorist attacks, riots, and natural disasters.
Date:
January 28, 2010
Creator:
Boyd, Eugene & Gonzales, Oscar R.
Object Type:
Report
System:
The UNT Digital Library
Congress as a Consumer of Intelligence Information
This report examines the role of Congress as a consumer of national intelligence and examines several issues that Congress might address during the second session of the 111th Congress.
Date:
January 28, 2010
Creator:
Cumming, Alfred
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 130, No. 4, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
Palmer, Roger
Object Type:
Newspaper
System:
The Portal to Texas History
The Debt Limit: History and Recent Increases
This report discusses how the total debt of the federal government can increase, a historical overview of debt limits, and how the current economic slowdown has led to higher deficits and thereby a series of debt limit increases, as well as legislation related to these increases.
Date:
January 28, 2010
Creator:
Austin, D. Andrew & Levit, Mindy R.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Status of DOD's Implementation of Independent Management Reviews for Services Acquisitions
A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Defense (DOD) is the federal government's largest purchaser of contractor-provided services, obligating more than $207 billion on services contracts in fiscal year 2009. DOD contract management has been on GAO's high-risk list since 1992, in part because of continued weaknesses in DOD's management and oversight of contracts for services. The National Defense Authorization Act for Fiscal Year 2008 directed DOD to issue guidance providing for independent management reviews for services acquisitions. The Act required that the guidance provide a means to evaluate specific contracting issues and to address other issues, including identifying procedures for tracking recommendations and disseminating lessons learned. The Act also directed GAO to report on DOD's implementation of its guidance. GAO (1) assessed the extent to which DOD's guidance addressed the Act's requirements and how the guidance was implemented and (2) determined the status of actions taken by the military departments pursuant to DOD's guidance. GAO compared DOD's guidance with the Act's requirements; obtained data on the number of reviews conducted as of September 2009; and analyzed memoranda of 29 acquisitions valued at over $1 billion. In its written comments, …
Date:
January 28, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Defense Contracting: DOD Has Enhanced Insight into Undefinitized Contract Action Use, but Management at Local Commands Needs Improvement
A letter report issued by the Government Accountability Office with an abstract that begins "To meet urgent needs, DOD can issue undefinitized contract actions (UCA), which authorize contractors to begin work before reaching a final agreement on contract terms. Such actions are considered to be a risky contract vehicle for the government because contractors lack incentives to control costs during this period. Defense regulations provide that the government determination of contractors' allowable profit or fee should reflect any reduced cost risk. Pursuant to the 2008 National Defense Authorization Act, GAO assessed whether DOD actions taken as required by the act have (1) improved departmental insight and oversight of UCA use and (2) resulted in local commands meeting DOD's standards for documenting the basis for negotiating the contractor profit or fee, definitization timelines, and obligation amounts. GAO reviewed relevant DOD regulations and policies, and contract files for 83 randomly-selected UCAs totaling $6.1 billion at eight local commands. The findings from this contract file review can not be generalized across DOD."
Date:
January 28, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 20, No. 22, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Effect of laser pulse shape on damage susceptibility in optical materials
None
Date:
January 28, 2010
Creator:
Carr, C W; Cross, D A & DeMange, P
Object Type:
Article
System:
The UNT Digital Library
Electra Star-News (Electra, Tex.), Vol. 103, No. 25, Ed. 1 Thursday, January 28, 2010
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
January 28, 2010
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Electronic Health Records: DOD and VA Interoperability Efforts Are Ongoing; Program Office Needs to Implement Recommended Improvements
A letter report issued by the Government Accountability Office with an abstract that begins "The National Defense Authorization Act for Fiscal Year 2008 required the Department of Defense (DOD) and the Department of Veterans Affairs (VA) to accelerate their exchange of health information and to develop capabilities that allow for interoperability (generally, the ability of systems to exchange data) by September 30, 2009. It also required compliance with federal standards and the establishment of a joint interagency program office to function as a single point of accountability for the effort. Further, the act directed GAO to semiannually report on the progress made in achieving these requirements. For this fourth report, GAO determined the extent to which (1) DOD and VA developed and implemented electronic health record systems or capabilities that allowed for full interoperability by September 30, 2009, and (2) the interagency program office established by the act is functioning as a single point of accountability. To do so, GAO analyzed agency documentation on project status and conducted interviews with agency officials."
Date:
January 28, 2010
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Environmental Compliance
A paper that establishes Defense Logistics Agency-wide policy and directives for maintaining compliance with all environmental laws, regulations, directives, executive orders, international treatise and standards, and other controlling legal authorities.
Date:
January 28, 2010
Creator:
United States. Defense Logistics Agency.
Object Type:
Report
System:
The UNT Digital Library