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73
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678 Matching Results
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Manufactured Housing Standards: Testing and Performance Evaluation Could Better Ensure Safe Indoor Air Quality
A letter report issued by the Government Accountability Office with an abstract that begins "Key standards for manufactured homes provide a lower margin of safety against a carbon monoxide exposure incident than those for site-built homes, which are constructed at their permanent locations. For instance, the Department of Housing and Urban Development (HUD) Code requires a minimum 3-foot separation between air intakes and exhaust vents, while industry standards for site-built homes have required a greater distance for many years. The industry standards call for a greater separation between air intakes and exhaust vents to help reduce the risk that contaminants such as carbon monoxide will re-enter the home. Indoor air quality experts whom GAO interviewed stated that the exhaust of an improperly operating furnace combined with unique wind conditions could, in rare cases, present a risk of carbon monoxide exposure. GAO analysis shows that increasing the separation between an air intake and exhaust vents, using industry standards, can significantly dilute concentrations of contaminants."
Date:
October 24, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Novel Approach to Prepare {sup 99m}Tc-Based Multivalent RGD Peptides
This project presents a novel approach to prepare the {sup 99m}Tc-bridged multivalent RGD (arginine-glycine-aspartate) peptides. This project will focus on fundamentals of {sup 99m}Tc radiochemistry. The main objective of this project is to demonstrate the proof-of-principle for the proposed radiotracers. Once a kit formulation is developed for preparation of the {sup 99m}Tc-bridged multivalent RGD peptides, various tumor-bearing animal models will be used to evaluate their potential for SPECT (single photon-emission computed tomography) imaging of cancer. We have demonstrated that (1) multimerization of cyclic RGD peptides enhances the integrin {alpha}{sub v}{beta}{sub 3} bonding affinity and radiotracer tumor uptake; (2) addition of G{sub 3} or PEG{sub 4} linkers makes it possible for two RGD motifs in 3P-RGD{sub 2} and 3G-RGD{sub 2} to achieve simultaneous integrin {alpha}{sub v}{beta}{sub 3} binding; and (3) multimers are actually bivalent (not multivalent), the presence of extra RGD motifs can enhance the tumor retention time of the radiotracer.
Date:
October 24, 2012
Creator:
Liu, Shuang
Object Type:
Report
System:
The UNT Digital Library
An Overview of the Transaction Account Guarantee (TAG) Program and the Potential Impact of Its Expiration or Extension
None
Date:
October 24, 2012
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Quasi-isentropic drive development for peak pressures > 10 Mbar
None
Date:
October 24, 2012
Creator:
Prisbrey, S. T.; Park, H. S.; Remington, B. A.; May, M.; Cavallo, R.; Comley, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Solar-thermal Water Splitting Using the Sodium Manganese Oxide Process & Preliminary H2A Analysis
There are three primary reactions in the sodium manganese oxide high temperature water splitting cycle. In the first reaction, Mn2O3 is decomposed to MnO at 1,500°C and 50 psig. This reaction occurs in a high temperature solar reactor and has a heat of reaction of 173,212 J/mol. Hydrogen is produced in the next step of this cycle. This step occurs at 700°C and 1 atm in the presence of sodium hydroxide. Finally, water is added in the hydrolysis step, which removes NaOH and regenerates the original reactant, Mn2O3. The high temperature solarâdriven step for decomposing Mn2O3 to MnO can be carried out to high conversion without major complication in an inert environment. The second step to produce H2 in the presence of sodium hydroxide is also straightforward and can be completed. The third step, the low temperature step to recover the sodium hydroxide is the most difficult. The amount of energy required to essentially distill water to recover sodium hydroxide is prohibitive and too costly. Methods must be found for lower cost recovery. This report provides information on the use of ZnO as an additive to improve the recovery of sodium hydroxide.
Date:
October 24, 2012
Creator:
Francis, Todd M.; Lichty, Paul R.; Perkins, Christopher; Tucker, Melinda; Kreider, Peter B.; Funke, Hans H. et al.
Object Type:
Report
System:
The UNT Digital Library
The Arabidopsis Wave Complex: Mechanisms Of Localized Actin Polymerization And Growth
The objective of this project was to discover the protein complexes and control mechanisms that determine the location of actin filament roadways in plant cells. Our work provided the first molecular description of protein complexes that are converted from inactive complexes to active actin filament nucleators in the cell. These discoveries provided a conceptual framework to control to roadways in plant cells that determine the location and delivery of plant metabolites and storage molecules that are relevant to the bioenergy economy.
Date:
October 23, 2012
Creator:
Szymanski, Daniel
Object Type:
Report
System:
The UNT Digital Library
Campaign Finance Guide for Political Committees
This guide is a summary of the campaign finance regulations applicable to political committees.
Date:
October 23, 2012
Creator:
Texas Ethics Commission
Object Type:
Book
System:
The Portal to Texas History
CO{sub 2} Sequestration Potential of Charqueadas Coal Field in Brazil
The I2B coal seam in the Charqueadas coal field has been evaluated as a target for enhanced coal bed methane production and CO{sub 2} sequestration. The samples were low rank coals (high volatile bituminous and sub-bituminous) obtained from the I2B seam as �3� cores. Such properties as sorption capacity, internal structure of the samples, porosity and permeability were of primary interest in this characterization study.
Date:
October 23, 2012
Creator:
Romanov, V.
Object Type:
Article
System:
The UNT Digital Library
Conceptual Design Parameters for MITR LEU-MO Fuel Conversion Demonstration Experimental Irradiations
None
Date:
October 23, 2012
Creator:
Wilson, E. H.; Newton, T. H., Jr.; Hu, L.; Dunn, F. E. & Stevens, J. G.
Object Type:
Report
System:
The UNT Digital Library
Defense Acquisitions: Future Aerostat and Airship Investment Decisions Drive Oversight and Coordination Needs
A letter report issued by the Government Accountability Office with an abstract that begins "GAO identified 15 key aerostat and airship efforts that were underway or had been initiated since 2007, and the Department of Defense (DOD) had or has primary responsibility for all of these efforts. None of the civil agency efforts met GAO's criteria for a key effort. Most of the aerostat and airship efforts have been fielded or completed, and are intended to provide intelligence, surveillance, and reconnaissance (ISR) support. The estimated total funding of these efforts was almost $7 billion from fiscal years 2007 through 2012. However, funding estimates beyond fiscal year 2012 decline precipitously for aerostat and airship efforts under development, although there is an expectation that investment in the area will continue."
Date:
October 23, 2012
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
DEVELOPMENT OF HTS CONDUCTORS FOR ELECTRIC POWER APPLICATIONS
Second generation (2G) technologies to fabricate high-performance superconducting wires developed at the Oak Ridge National Laboratory (ORNL) were transferred to American Superconductor via this CRADA. In addition, co-development of technologies for over a decade was done to enable fabrication of commercial high-temperature superconducting (HTS) wires with high performance. The massive success of this CRADA has allowed American Superconductor Corporation (AMSC) to become a global leader in the fabrication of HTS wire and the technology is fully based on the Rolling Assisted Biaxially Textured Substrates (RABiTS) technology invented and developed at ORNL.
Date:
October 23, 2012
Creator:
Goyal, A. & Rupich, M. (American Superconductor Corp.)
Object Type:
Report
System:
The UNT Digital Library
Distinguishing Plutonium Metal from Plutonium Oxide Using Fast Neutrons, Preliminary Experimental Results
None
Date:
October 23, 2012
Creator:
Verbeke, J M & Chapline, G F
Object Type:
Report
System:
The UNT Digital Library
Employment for Veterans: Trends and Programs
This report discusses veterans' employment trends and programs. The first section presents data on veterans' employment outcomes, identifying recent trends, and discussing issues to consider when interpreting veterans' employment data. The following sections present brief discussions of existing programs that provide employment-related services to veterans. These services are divided into (1) general programs that are broadly available to veterans, (2) programs that target veterans with service-connected disabilities, and (3) competitive grant programs that provide additional employment-related services to veterans but may be limited in scope or availability.
Date:
October 23, 2012
Creator:
Collins, Benjamin; Bradley, David H.; Dortch, Cassandria; Kapp, Lawrence & Scott, Christine
Object Type:
Report
System:
The UNT Digital Library
Energy and Water Development: Fiscal Year 2013 Appropriations
Report that discusses the FY2012 budget for energy and water development as approved by Congress, including how the funding will be used.
Date:
October 23, 2012
Creator:
Behrens, Carl E.
Object Type:
Report
System:
The UNT Digital Library
Grain Sorting in Cometary Dust from the Outer Solar Nebula
None
Date:
October 23, 2012
Creator:
Wozniakiewicz, P J; Bradley, J P; Ishii, H A; Brownlee, D E; Kearsley, A T; Burchell, M J et al.
Object Type:
Article
System:
The UNT Digital Library
Promoting Global Internet Freedom: Policy and Technology
Report that provides information about federal and private sector efforts to promote and support global Internet freedom, a description of Internet freedom legislation from the 112th Congress, and suggestions for further reading on this topic. Two appendixes describe censorship and circumvention technologies.
Date:
October 23, 2012
Creator:
Moloney Figliola, Patricia
Object Type:
Report
System:
The UNT Digital Library
Analysis and Simulation of Beam Ion Instability in ILC Damping Ring with Multi-gas Species
None
Date:
October 22, 2012
Creator:
Wang, Lanfa & Pivi, Mauro
Object Type:
Article
System:
The UNT Digital Library
The Article V Convention for Proposing Constitutional Amendments: Historical Perspectives for Congress
This report offers perspectives for Congress on the Article V Convention, opening with an overview of the provisions in Article V that established the convention procedure. The report further examines its origins at the Constitutional Convention of 1787; the history of the convention alternative, focusing on three major 20th century campaigns to convene a constitutional convention; and the role of the states in the Article V Convention process.
Date:
October 22, 2012
Creator:
Neale, Thomas H.
Object Type:
Report
System:
The UNT Digital Library
Creating the link between micro-seismic observations and hydro-mechanical changes in the reservoir
None
Date:
October 22, 2012
Creator:
Johnson, Scott
Object Type:
Report
System:
The UNT Digital Library
The Electoral College: How It Works in Contemporary Presidential Elections
This report provides information about the electoral college, its origins, who makes up the college today, the 2012 presidental election, and calls for the reform of the electoral college.
Date:
October 22, 2012
Creator:
Neale, Thomas H.
Object Type:
Report
System:
The UNT Digital Library
Federal Affirmative Action Law: A Brief History
This report provides a brief history about the Federal Affirmative Action Law which remains a focal point of public debate as a result of legal and political developments at the federal,state and local levels.
Date:
October 22, 2012
Creator:
Feder, Jody
Object Type:
Report
System:
The UNT Digital Library
GI Bills Enacted Prior to 2008 and Related Veterans' Educational Assistance Programs: A Primer
This report describes the GI Bills enacted prior to 2008. Although participation in the programs has ended or is declining, the programs' evolution and provisions inform current policy. Included is a description of the eligibility requirements, eligible programs of education, benefit availability, and benefits. The report also provides some summary statistics, comparisons between the programs, and brief discussions of related programs.
Date:
October 22, 2012
Creator:
Dortch, Cassandria
Object Type:
Report
System:
The UNT Digital Library
Hydrogen Absorption in Pd-based Nanostructures - Final Report
Pd is known to absorb hydrogen. Molecules are normally chemisorbed at the surface in a process where the molecule breaks into two hydrogen atoms, and the protons are then absorbed into the bulk. This process consists of electron filling holes in the Pd 4d band near the Fermi energy, which due to the high density of states at the Fermi energy, is an energetically favorable process. Our aim with this project was to determine possible changes in magnetic properties with Pd nm-length-scale thick layers intercalated by magnetic materials. Before the start of this work, the literature indicated that there were several possible scenarios by which this could happen: i) the Pd will be magnetized due to a proximity effect with nearby magnetic layers, resulting in changes in the magnetization due to H2 absorption; ii) some H will be absorbed into the magnetic layers, causing a change in the magnetic exchange interactions; or iii) absorption of H2 will cause an expansion of the lattice, resulting in a magnetoelastic effect which changes the magnetic properties.
Date:
October 22, 2012
Creator:
Lederman, David
Object Type:
Report
System:
The UNT Digital Library
Integrating NASA Earth Science Capabilities into the Interagency Modeling and Atmospheric Assessment Center for Improvements in Atmospheric Transport and Dispersion Modeling
None
Date:
October 22, 2012
Creator:
Simpson, M D; Jasinski, M F; Borak, J; Blonski, S; Spruce, J; Walker, H et al.
Object Type:
Report
System:
The UNT Digital Library