Advanced Electrical, Optical and Data Communication Infrastructure Development (open access)

Advanced Electrical, Optical and Data Communication Infrastructure Development

The implementation of electrical and IT infrastructure systems at the North Carolina Center for Automotive Research , Inc. (NCCAR) has achieved several key objectives in terms of system functionality, operational safety and potential for ongoing research and development. Key conclusions include: (1) The proven ability to operate a high speed wireless data network over a large 155 acre area; (2) Node to node wireless transfers from access points are possible at speeds of more than 50 mph while maintaining high volume bandwidth; (3) Triangulation of electronic devices/users is possible in areas with overlapping multiple access points, outdoor areas with reduced overlap of access point coverage considerably reduces triangulation accuracy; (4) Wireless networks can be adversely affected by tree foliage, pine needles are a particular challenge due to the needle length relative to the transmission frequency/wavelength; and (5) Future research will use the project video surveillance and wireless systems to further develop automated image tracking functionality for the benefit of advanced vehicle safety monitoring and autonomous vehicle control through 'vehicle-to-vehicle' and 'vehicle-to-infrastructure' communications. A specific advantage realized from this IT implementation at NCCAR is that NC State University is implementing a similar wireless network across Centennial Campus, Raleigh, NC in 2011 …
Date: April 30, 2011
Creator: Cobb, Simon
Object Type: Report
System: The UNT Digital Library
Completion Report for Well ER-20-4 Corrective Action Units 101 and 102: Central and Western Pahute Mesa (open access)

Completion Report for Well ER-20-4 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Well ER-20-4 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada National Security Site, Nye County, Nevada. The well was drilled in August and September 2010 as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to investigate the possibility of radionuclide transport from up-gradient underground nuclear tests conducted in central Pahute Mesa. This well also provided detailed hydrogeologic information in the Tertiary volcanic section that will help reduce uncertainties within the Pahute Mesa-Oasis Valley hydrostratigraphic framework model.
Date: April 30, 2011
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
Completion Report for Well ER-EC-12 Corrective Action Units 101 and 102: Central and Western Pahute Mesa (open access)

Completion Report for Well ER-EC-12 Corrective Action Units 101 and 102: Central and Western Pahute Mesa

Well ER-EC-12 was drilled for the U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office in support of the Nevada Environmental Restoration Project at the Nevada National Security Site (formerly known as the Nevada Test Site), Nye County, Nevada. The well was drilled in June and July 2010 as part of the Pahute Mesa Phase II drilling program. The primary purpose of the well was to provide detailed hydrogeologic information in the Tertiary volcanic section in the area between Pahute Mesa and the Timber Mountain caldera complex that will help address uncertainties within the Pahute Mesa–Oasis Valley hydrostratigraphic model. In particular, the well was intended to help define the structural position and hydraulic parameters for volcanic aquifers potentially down-gradient from historic underground nuclear tests on Pahute Mesa. It may also be used as a long-term monitoring well.
Date: April 30, 2011
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
Corrective Action Plan for Corrective Action Unit 562: Waste Systems, Nevada National Security Site, Nevada (open access)

Corrective Action Plan for Corrective Action Unit 562: Waste Systems, Nevada National Security Site, Nevada

This Corrective Action Plan has been prepared for Corrective Action Unit (CAU) 562, Waste Systems, in accordance with the Federal Facility Agreement and Consent Order (1996; as amended March 2010). CAU 562 consists of 13 Corrective Action Sites (CASs) located in Areas 2, 23, and 25 of the Nevada National Security Site. Site characterization activities were performed in 2009 and 2010, and the results are presented in Appendix A of the Corrective Action Decision Document for CAU 562. The scope of work required to implement the recommended closure alternatives is summarized. (1) CAS 02-26-11, Lead Shot, will be clean closed by removing shot. (2) CAS 02-44-02, Paint Spills and French Drain, will be clean closed by removing paint and contaminated soil. As a best management practice (BMP), asbestos tile will be removed. (3) CAS 02-59-01, Septic System, will be clean closed by removing septic tank contents. As a BMP, the septic tank will be removed. (4) CAS 02-60-01, Concrete Drain, contains no contaminants of concern (COCs) above action levels. No further action is required; however, as a BMP, the concrete drain will be removed. (5) CAS 02-60-02, French Drain, was clean closed. Corrective actions were completed during corrective action investigation …
Date: April 30, 2011
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
Development of a Hydrogasification Process for Co-Production of Substitute Natural Gas (SNG) and Electric Power from Western Coals (open access)

Development of a Hydrogasification Process for Co-Production of Substitute Natural Gas (SNG) and Electric Power from Western Coals

This report presents the results of the research and development conducted on an Advanced Hydrogasification Process (AHP) conceived and developed by Arizona Public Service Company (APS) under U.S. Department of Energy (DOE) contract: DE-FC26-06NT42759 for Substitute Natural Gas (SNG) production from western coal. A double-wall (i.e., a hydrogasification contained within a pressure shell) down-flow hydrogasification reactor was designed, engineered, constructed, commissioned and operated by APS, Phoenix, AZ. The reactor is ASME-certified under Section VIII with a rating of 1150 pounds per square inch gage (psig) maximum allowable working pressure at 1950 degrees Fahrenheit ({degrees}F). The reaction zone had a 1.75 inch inner diameter and 13 feet length. The initial testing of a sub-bituminous coal demonstrated ~ 50% carbon conversion and ~10% methane yield in the product gas under 1625{degrees}F, 1000 psig pressure, with a 11 seconds (s) residence time, and 0.4 hydrogen-to-coal mass ratio. Liquid by-products mainly contained Benzene, Toluene, Xylene (BTX) and tar. Char collected from the bottom of the reactor had 9000-British thermal units per pound (Btu/lb) heating value. A three-dimensional (3D) computational fluid dynamic model simulation of the hydrodynamics around the reactor head was utilized to design the nozzles for injecting the hydrogen into the gasifier to …
Date: April 30, 2011
Creator: Sun, Xiaolei & Rink, Nancy
Object Type: Report
System: The UNT Digital Library
An Integrated Water Treatment Technology Solution for Sustainable Water Resource Management in the Marcellus Shale (open access)

An Integrated Water Treatment Technology Solution for Sustainable Water Resource Management in the Marcellus Shale

This Final Scientific/ Technical Report submitted with respect to Project DE-FE0000833 titled 'An Integrated Water Treatment Technology Solution for Sustainable Water Resource Management in the Marcellus Shale' in support of final reporting requirements. This final report contains a compilation of previous reports with the most current data in order to produce one final complete document. The goal of this research was to provide an integrated approach aimed at addressing the increasing water resource challenges between natural gas production and other water stakeholders in shale gas basins. The objective was to demonstrate that the AltelaRain{reg_sign} technology could be successfully deployed in the Marcellus Shale Basin to treat frac flow-back water. That objective has been successfully met.
Date: April 30, 2011
Creator: Bruff, Matthew; Godshall, Ned & Evans, Karen
Object Type: Report
System: The UNT Digital Library
Interim report on the Global Design Effort Global International Linear Collider (ILC) R&D (open access)

Interim report on the Global Design Effort Global International Linear Collider (ILC) R&D

The International Linear Collider: A Technical Progress Report marks the halfway point towards the Global Design Effort fulfilling its mandate to follow up the ILC Reference Design Report with a more optimised Technical Design Report (TDR) by the end of 2012. The TDR will be based on much of the work reported here and will contain all the elements needed to propose the ILC to collaborating governments, including a technical design and implementation plan that are realistic and have been better optimised for performance, cost and risk. We are on track to develop detailed plans for the ILC, such that once results from the Large Hadron Collider (LHC) at CERN establish the main science goals and parameters of the next machine, we will be in good position to make a strong proposal for this new major global project in particle physics. The two overriding issues for the ILC R&D programme are to demonstrate that the technical requirements for the accelerator are achievable with practical technologies, and that the ambitious physics goals can be addressed by realistic ILC detectors. This GDE interim report documents the impressive progress on the accelerator technologies that can make the ILC a reality. It highlights results …
Date: April 30, 2011
Creator: Harrison, M.
Object Type: Report
System: The UNT Digital Library
Methane Recovery from Hydrate-bearing Sediments (open access)

Methane Recovery from Hydrate-bearing Sediments

Gas hydrates are crystalline compounds made of gas and water molecules. Methane hydrates are found in marine sediments and permafrost regions; extensive amounts of methane are trapped in the form of hydrates. Methane hydrate can be an energy resource, contribute to global warming, or cause seafloor instability. This study placed emphasis on gas recovery from hydrate bearing sediments and related phenomena. The unique behavior of hydrate-bearing sediments required the development of special research tools, including new numerical algorithms (tube- and pore-network models) and experimental devices (high pressure chambers and micromodels). Therefore, the research methodology combined experimental studies, particle-scale numerical simulations, and macro-scale analyses of coupled processes. Research conducted as part of this project started with hydrate formation in sediment pores and extended to production methods and emergent phenomena. In particular, the scope of the work addressed: (1) hydrate formation and growth in pores, the assessment of formation rate, tensile/adhesive strength and their impact on sediment-scale properties, including volume change during hydrate formation and dissociation; (2) the effect of physical properties such as gas solubility, salinity, pore size, and mixed gas conditions on hydrate formation and dissociation, and it implications such as oscillatory transient hydrate formation, dissolution within the hydrate stability …
Date: April 30, 2011
Creator: Santamarina, J. Carlos & Tsouris, Costas
Object Type: Report
System: The UNT Digital Library
82nd Texas Legislature, Regular Session, Senate Bill 309, Chapter 9 (open access)

82nd Texas Legislature, Regular Session, Senate Bill 309, Chapter 9

Bill introduced by the Texas Senate relating to events to receive funding through a major events trust fund.
Date: April 29, 2011
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 333, Chapter 10 (open access)

82nd Texas Legislature, Regular Session, Senate Bill 333, Chapter 10

Bill introduced by the Texas Senate relating to election procedures and qualifications of members of boards of directors for water supply or sewer service corporations.
Date: April 29, 2011
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 386, Chapter 11 (open access)

82nd Texas Legislature, Regular Session, Senate Bill 386, Chapter 11

Bill introduced by the Texas Senate relating to the Lone Star College System District service area.
Date: April 29, 2011
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
82nd Texas Legislature, Regular Session, Senate Bill 458, Chapter 12 (open access)

82nd Texas Legislature, Regular Session, Senate Bill 458, Chapter 12

Bill introduced by the Texas Senate relating to initial claims under the unemployment compensation system.
Date: April 29, 2011
Creator: Texas. Legislature. Senate.
Object Type: Legislative Document
System: The Portal to Texas History
The Arabidopsis lyrata genome sequence and the basis of rapid genome size change (open access)

The Arabidopsis lyrata genome sequence and the basis of rapid genome size change

In our manuscript, we present a high-quality genome sequence of the Arabidopsis thaliana relative, Arabidopsis lyrata, produced by dideoxy sequencing. We have performed the usual types of genome analysis (gene annotation, dN/dS studies etc. etc.), but this is relegated to the Supporting Information. Instead, we focus on what was a major motivation for sequencing this genome, namely to understand how A. thaliana lost half its genome in a few million years and lived to tell the tale. The rather surprising conclusion is that there is not a single genomic feature that accounts for the reduced genome, but that every aspect centromeres, intergenic regions, transposable elements, gene family number is affected through hundreds of thousands of cuts. This strongly suggests that overall genome size in itself is what has been under selection, a suggestion that is strongly supported by our demonstration (using population genetics data from A. thaliana) that new deletions seem to be driven to fixation.
Date: April 29, 2011
Creator: Hu, Tina T.; Pattyn, Pedro; Bakker, Erica G.; Cao, Jun; Cheng, Jan-Fang; Clark, Richard M. et al.
Object Type: Article
System: The UNT Digital Library
Atomic Physics Measurements in Support of X-Ray Astronomy (open access)

Atomic Physics Measurements in Support of X-Ray Astronomy

None
Date: April 29, 2011
Creator: Beiersdorfer, P
Object Type: Article
System: The UNT Digital Library
CLIVAR Asian-Australian Monsoon Panel Report to Scientific Steering Group-18 (open access)

CLIVAR Asian-Australian Monsoon Panel Report to Scientific Steering Group-18

None
Date: April 29, 2011
Creator: Sperber, K R & Hendon, H H
Object Type: Report
System: The UNT Digital Library
Corrigenda: Finite deformation of a pressurized magnetoelastic membrane in a stationary dipole field (open access)

Corrigenda: Finite deformation of a pressurized magnetoelastic membrane in a stationary dipole field

None
Date: April 29, 2011
Creator: Barham, M.; Steigmann, D. J.; McElfresh, M. & Rudd, R. E.
Object Type: Article
System: The UNT Digital Library
The Democratic Republic of Congo: Background and Current Developments (open access)

The Democratic Republic of Congo: Background and Current Developments

This report discusses in brief the current political state of the Democratic Republic of the Congo, as well as the crisis situation in eastern Congo that has displaced more than 250,000 civilians. It also describes U.S., U.N., and other international efforts to aid in resolving the crisis.
Date: April 29, 2011
Creator: Dagne, Ted
Object Type: Report
System: The UNT Digital Library
Department of Energy: Progress Made Overseeing the Costs of Contractor Postretirement Benefits, but Additional Actions Could Help Address Challenges (open access)

Department of Energy: Progress Made Overseeing the Costs of Contractor Postretirement Benefits, but Additional Actions Could Help Address Challenges

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of Energy (DOE) relies on contractors to conduct its mission activities. DOE reimburses these contractors for allowable costs, including the costs of providing pension and other postretirement benefits, such as retiree health care plans. Since the economic downturn, DOE has had to devote significantly more funding toward reimbursing these benefit costs, in part because of a decline in interest rates and asset values that has increased contractor pension contributions. In a challenging budgetary environment, further growth in these costs could put pressure on DOE's mission work. GAO was asked to report on (1) the level of control DOE has over contractor pension and other postretirement benefit costs under its current business model and (2) the changes DOE has adopted since the national economic downturn to manage those costs and the extent to which those changes have enhanced its approach. To do so, GAO reviewed relevant laws, regulations, and DOE guidance; analyzed agency financial data; and interviewed officials."
Date: April 29, 2011
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Endangered Species Act (ESA) in the 112th Congress: Conflicting Values and Difficult Choices (open access)

The Endangered Species Act (ESA) in the 112th Congress: Conflicting Values and Difficult Choices

The Endangered Species Act has been one of the more contentious environmental laws. This may stem from its strict substantive provisions, which can affect the use of both federal and nonfederal lands and resources. This report discusses oversight issues and legislation introduced in the 112th Congress to address Endangered Species Act implementation and management of endangered and threatened species.
Date: April 29, 2011
Creator: Buck, Eugene H.; Corn, M. Lynne; Alexander, Kristina; Sheikh, Pervaze A. & Meltz, Robert
Object Type: Report
System: The UNT Digital Library
Federal Aviation Administration (FAA) Reauthorization: An Overview of Legislative Action in the 112th Congress (open access)

Federal Aviation Administration (FAA) Reauthorization: An Overview of Legislative Action in the 112th Congress

This report looks at issues faced by the 112th Congress in regards to reauthorization of Federal Aviation Administration (FAA) programs. The House has passed a bill which would authorize programs through FY2014, while the Senate's bill would only last until FY2011. The Senate's bill also proposes an increase in jet fuel tax for general aviation and a new jet fuel surcharge for fractionally owned air crafts. The report covers key issues that need to be addressed for reconciliation between the two bills.
Date: April 29, 2011
Creator: Elias, Bart
Object Type: Report
System: The UNT Digital Library
The Federal Budget: Issues for FY2011, FY2012, and Beyond (open access)

The Federal Budget: Issues for FY2011, FY2012, and Beyond

The federal budget is central to Congress's ability to exercise its "power of the purse." Over the last several fiscal years the imbalance between spending and revenues has grown as a result of the economic downturn and policies enacted in response to financial turmoil. In FY2010, the last completed fiscal year, the U.S. government spent $3,456 billion (23.8% of GDP) and collected $2,162 billion in revenue (14.9% of GDP), resulting in a budget deficit of $1,294 billion (8.9% of GDP).
Date: April 29, 2011
Creator: Levit, Mindy R.
Object Type: Report
System: The UNT Digital Library
Federal Register, Volume 76, Number 83, April 29, 2011, Pages 23861-24338 (open access)

Federal Register, Volume 76, Number 83, April 29, 2011, Pages 23861-24338

Daily publication of the U.S. Office of the Federal Register contains rules and regulations, proposed legislation and rule changes, and other notices, including "Presidential proclamations and Executive Orders, Federal agency documents having general applicability and legal effect, documents required to be published by act of Congress, and other Federal agency documents of public interest" (p. ii). Table of Contents starts on page iii.
Date: April 29, 2011
Creator: United States. Office of the Federal Register.
Object Type: Journal/Magazine/Newsletter
System: The UNT Digital Library
Finite Deformation of Magnetoelastic Film (open access)

Finite Deformation of Magnetoelastic Film

None
Date: April 29, 2011
Creator: Barham, M I
Object Type: Thesis or Dissertation
System: The UNT Digital Library
FOUR PI CALIBRATION AND MODELING OF A BARE GERMANIUM DETECTOR IN A CYLINDRICAL FIELD SOURCE (open access)

FOUR PI CALIBRATION AND MODELING OF A BARE GERMANIUM DETECTOR IN A CYLINDRICAL FIELD SOURCE

In reference 1 the authors described {gamma}-ray holdup assay of a Mossbauer spectroscopy instrument where they utilized two axial symmetric cylindrical shell acquisitions and two disk source acquisitions to determine Am-241 and Np-237 contamination. The measured contents of the two species were determined using a general detector efficiency calibration taken from a 12-inch point source.2 The authors corrected the raw spectra for container absorption as well as for geometry corrections to transform the calibration curve to the applicable axial symmetric cylindrical source - and disk source - of contamination. The authors derived the geometry corrections with exact calculus that are shown in equations (1) and (2) of our Experimental section. A cylindrical shell (oven source) acquisition configuration is described in reference 3, where the authors disclosed this configuration to gain improved sensitivity for holdup measure of U-235 in a ten-chamber oven. The oven was a piece of process equipment used in the Savannah River Plant M-Area Uranium Fuel Fabrication plant for which a U-235 holdup measurement was necessary for its decontamination and decommissioning in 2003.4 In reference 4 the authors calibrated a bare NaI detector for these U-235 holdup measurements. In references 5 and 6 the authors calibrated a bare …
Date: April 29, 2011
Creator: Dewberry, R. & Young, J.
Object Type: Article
System: The UNT Digital Library