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1-D Van der Waals Foams Heated by Ion Beam Energy Deposition (open access)

1-D Van der Waals Foams Heated by Ion Beam Energy Deposition

One dimensional simulations of various initial average density aluminum foams (modeled as slabs of solid metal separated by low density regions) heated by volumetric energy deposition are conducted with a Lagrangian hydrodynamics code using a van der Waals equation of state (EOS). The resulting behavior is studied to facilitate the design of future warm dense matter (WDM) experiments at LBNL. In the simulations the energy deposition ranges from 10 to 30 kJ/g and from 0.075 to 4.0 ns total pulse length, resulting in temperatures from approximately 1 to 4 eV. We study peak pressures and temperatures in the foams, expansion velocity, and the phase evolution. Five relevant time scales in the problem are identified. Additionally, we present a method for characterizing the level of inhomogeneity in a foam target as it is heated and the time it takes for a foam to homogenize.
Date: March 19, 2010
Creator: Zylstra, A; Barnard, J J & More, R M
Object Type: Article
System: The UNT Digital Library
The “8(a) Program” for Small Businesses Owned and Controlled by the Socially and Economically Disadvantaged: Legal Requirements and Issues (open access)

The “8(a) Program” for Small Businesses Owned and Controlled by the Socially and Economically Disadvantaged: Legal Requirements and Issues

From Summary: "This report provides an overview of the Small Business Administration's (SBA's) Minority Small Business and Capital Ownership Development Program. Based on upon authorities given to the SBA by Sections 7(j) and 8(a) of the Small Business Act of 1958, as amended, this program is commonly known as the "8(a) Program."
Date: March 18, 2010
Creator: Luckey, J. R.
Object Type: Report
System: The UNT Digital Library
8(a) Program: Fourteen Ineligible Firms Received $325 Million in Sole-Source and Set-Aside Contracts (open access)

8(a) Program: Fourteen Ineligible Firms Received $325 Million in Sole-Source and Set-Aside Contracts

A letter report issued by the Government Accountability Office with an abstract that begins "The Small Business Administration (SBA) helps socially and economically disadvantaged small businesses gain access to federal contracting opportunities through its 8(a) program. To participate, firms must be at least 51 percent owned and controlled by an individual who meets SBA's criteria of socially and economically disadvantaged. The firm must also qualify as a small business. Once certified, 8(a) firms are eligible to receive sole-source and set-aside contracts for up to 9 years. GAO was asked to (1) determine whether ineligible firms are participating in the 8(a) program, (2) proactively test SBA's controls over the 8(a) application process, and (3) determine what vulnerabilities, if any, exist in SBA's fraud prevention system. To identify cases, GAO reviewed SBA data and complaints to GAO's fraud hotline. To perform its proactive testing, GAO created four bogus businesses and applied for 8(a) certification. GAO did not attempt to project the extent of fraud and abuse in the program."
Date: March 30, 2010
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
100-B/C Target Analyte List Development for Soil (open access)

100-B/C Target Analyte List Development for Soil

This report documents the process used to identify source area target analytes in support of the 100-B/C remedial investigation/feasibility study addendum to DOE/RL-2008-46. This report also establishes the analyte exclusion criteria applicable for 100-B/C use and the analytical methods needed to analyze the target analytes.
Date: March 18, 2010
Creator: Ovink, R.W.
Object Type: Report
System: The UNT Digital Library
100% Renewable Energy - and Beyond - for Cities (open access)

100% Renewable Energy - and Beyond - for Cities

This booklet sketches out the options and the processes that have started to transform urban energy systems. The document promotes carbon neutrality for communities and cities and argues that even the largest cities can make this transition, drawing on renewable energy supplies from within their boundaries, as well as from farther away. In addition to assuring urban energy security, these developments can also stimulate the growth of a very large new green economy sector.
Date: March 2010
Creator: Droege, Peter
Object Type: Text
System: The UNT Digital Library
15th Street News (Midwest City, Okla.), Vol. 39, No. 20, Ed. 1 Friday, March 5, 2010 (open access)

15th Street News (Midwest City, Okla.), Vol. 39, No. 20, Ed. 1 Friday, March 5, 2010

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: March 5, 2010
Creator: Price, Racheal
Object Type: Newspaper
System: The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 39, No. 21, Ed. 1 Friday, March 12, 2010 (open access)

15th Street News (Midwest City, Okla.), Vol. 39, No. 21, Ed. 1 Friday, March 12, 2010

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: March 12, 2010
Creator: Price, Racheal
Object Type: Newspaper
System: The Gateway to Oklahoma History
15th Street News (Midwest City, Okla.), Vol. 39, No. 22, Ed. 1 Friday, March 26, 2010 (open access)

15th Street News (Midwest City, Okla.), Vol. 39, No. 22, Ed. 1 Friday, March 26, 2010

Newspaper from Rose State College in Midwest City, Oklahoma that includes national, local, and campus news along with advertising.
Date: March 26, 2010
Creator: Price, Racheal
Object Type: Newspaper
System: The Gateway to Oklahoma History
2001 New York State NHTS: Travel Patterns of Special Populations (open access)

2001 New York State NHTS: Travel Patterns of Special Populations

Policymakers rely on transportation statistics, including data on personal travel behavior, to formulate strategic transportation policies, and to improve the safety and efficiency of the U.S. transportation system. Data on personal travel trends are needed to examine the reliability, efficiency, capacity, and flexibility of the Nation's transportation system to meet current demands and accommodate future demands; to assess the feasibility and efficiency of alternative congestion-alleviating technologies (e.g., high-speed rail, magnetically levitated trains, intelligent vehicle and highway systems); to evaluate the merits of alternative transportation investment programs; and to assess the energy-use and air-quality impacts of various policies. To address these data needs, the U.S. Department of Transportation (USDOT) initiated an effort in 1969 to collect detailed data on personal travel. The 1969 survey was the first Nationwide Personal Transportation Survey (NPTS). The survey was conducted again in 1977, 1983, 1990, 1995, and 2001. Data on daily travel were collected in 1969, 1977, 1983, 1990 and 1995. Longer-distance travel was collected in 1977 and 1995. The 2001 National Household Travel Survey (NHTS) collected both daily and longer-distance trips in one survey. The 2001 survey was sponsored by three USDOT agencies: Federal Highway Administration (FHWA), Bureau of Transportation Statistics (BTS), and National …
Date: March 1, 2010
Creator: Hu, Patricia S. & Reuscher, Tim
Object Type: Report
System: The UNT Digital Library
2009 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analysis (open access)

2009 Annual Summary Report for the Area 3 and Area 5 Radioactive Waste Management Sites at the Nevada Test Site, Nye County, Nevada: Review of the Performance Assessments and Composite Analysis

The U.S. Department of Energy, National Nuclear Security Administration Nevada Site Office performed an annual review of the Area 3 and Area 5 Radioactive Wate Management Site (RWMS) Performance Assessments (PAs) and Composite Analyses (CAs) in fiscal year (FY) 2009. This annual summary report presents data and conclusions from the FY 2009 review, and determines the adequacy of the PAs and CAs. Operational factors (e.g., waste forms and containers, facility design, and waste receipts), closure plans, monitoring results, and research and development (R&D) activities were reviewed to determine the adequacy of the PAs. Likewise, the environmental restoration activities at the Nevada Test Site relevant to the sources of residual radioactive material that are considered in the CAs, the land-use planning, and the results of the environmental monitoring and R&D activities were reviewed to determine the adequacy of the CAs.
Date: March 15, 2010
Creator: NSTec Environmental Management
Object Type: Report
System: The UNT Digital Library
2009 Groundwater Monitoring Report Project Shoal Area, Corrective Action Unit 447 (open access)

2009 Groundwater Monitoring Report Project Shoal Area, Corrective Action Unit 447

This report presents the 2009 groundwater monitoring results collected by the U.S. Department of Energy (DOE) Office of Legacy Management (LM) at the Project Shoal Area (PSA) Subsurface Corrective Action Unit (CAU) 447 in Churchill County, Nevada. Responsibility for the environmental site restoration of the PSA was transferred from the DOE Office of Environmental Management to LM on October 1, 2006. The environmental restoration process and corrective action strategy for CAU 447 are conducted in accordance with the Federal Facility Agreement and Consent Order (FFACO 1996, as amended February 2008) entered into by DOE, the U.S. Department of Defense, and the State of Nevada. The corrective action strategy for the site includes monitoring in support of site closure. This report summarizes investigation activities associated with CAU 447 that were conducted at the PSA during fiscal year 2009.
Date: March 1, 2010
Creator: unknown
Object Type: Report
System: The UNT Digital Library
2010 Census: Data Collection Is Under Way, but Reliability of Key Information Technology Systems Remains a Risk (open access)

2010 Census: Data Collection Is Under Way, but Reliability of Key Information Technology Systems Remains a Risk

Testimony issued by the Government Accountability Office with an abstract that begins "In March 2008, GAO designated the 2010 Census a high-risk area in part because of information technology (IT) shortcomings and uncertainty over the ultimate cost of the census, now estimated at around $15 billion. The U.S. Census Bureau (Bureau) has since made improvements to various IT systems and taken other steps to mitigate the risks to a successful census. However, last year, GAO noted that a number of challenges and uncertainties remained, and much work remained to be completed under very tight time frames. As requested, this testimony provides an update on the Bureau's readiness for an effective headcount, covering (1) the reliability of key IT systems; (2) a broad range of activities critical to an effective headcount, some of which were problematic in either earlier 2010 operations or in the 2000 Census, and (3) the quality of the Bureau's cost estimates. The testimony is based on previously issued and ongoing GAO work."
Date: March 25, 2010
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library

[2010 Tea on Tuesday group photo 1]

A photograph of the people gathered for the 2010 Tea on Tuesday event hosted by the Multicultural Center. Olga Grieco is at the front of the group and is holding a Certificate of Recognition that she received at the event.
Date: March 9, 2010
Creator: University of North Texas. Multicultural Center.
Object Type: Photograph
System: The UNT Digital Library

[2010 Tea on Tuesdays group photo 2]

A photograph of the people gathered for the 2010 Tea on Tuesday event hosted by the Multicultural Center. Olga Grieco is at the front of the group and is holding a Certificate of Recognition that she received at the event. Cara Walker who spoke at the event is standing next to her.
Date: March 9, 2010
Creator: University of North Texas. Multicultural Center.
Object Type: Photograph
System: The UNT Digital Library
[74th annual NADSA conference tape 1 of 2] captions transcript

[74th annual NADSA conference tape 1 of 2]

Video recording from The Black Academy of Arts and Letters recorded during the 74th National Association of Dramatic and Speech Arts conference on March 12th, 2010. The footage shows a play being performed that centers around characters working and under care in a mental hospital.
Date: March 12, 2010
Creator: unknown
Object Type: Video
System: The UNT Digital Library
[74th annual NADSA conference tape 2 of 2] captions transcript

[74th annual NADSA conference tape 2 of 2]

Video recording from The Black Academy of Arts and Letters recorded during the 74th National Association of Dramatic and Speech Arts conference on March 12th, 2010. The footage shows a group of African American men all dressed in black formal clothes performing together.
Date: March 12, 2010
Creator: unknown
Object Type: Video
System: The UNT Digital Library
[74th Annual NADSA Reception] captions transcript

[74th Annual NADSA Reception]

Video recording from The Black Academy of Arts and Letters recorded during the 74th Annual NADSA Reception event in 2010. This video features a reception and awards ceremony with various guest speakers and presenters. The video cuts at 1:37:12, later to a news segment.
Date: March 13, 2010
Creator: unknown
Object Type: Video
System: The UNT Digital Library
Abiotic Degradation Rates for Carbon Tetrachloride and Chloroform: Progress in FY2009 (open access)

Abiotic Degradation Rates for Carbon Tetrachloride and Chloroform: Progress in FY2009

This report documents the progress made through FY 2009 on a project initiated in FY 2006 to help address uncertainties related to the rates of hydrolysis in groundwater for carbon tetrachloride (CT) and chloroform (CF). The study seeks also to explore the possible effects of contact with minerals and sediment (i.e., heterogeneous hydrolysis) on these rates. In previous years the work was funded as two separate projects by various sponsors, all of whom received their funding from the U.S. Department of Energy (DOE). In FY2009, the projects were combined and funded by CH2MHill Plateau Remediation Corporation (CHPRC). Work in FY2009 was performed by staff at the Pacific Northwest National Laboratory (PNNL). Staff from the State University of New York at Cortland (SUNY–Cortland) contributed in previous years.
Date: March 2010
Creator: Amonette, James E.; Jeffers, Peter M.; Qafoku, Odeta; Russell, Colleen K.; Wietsma, Thomas W. & Truex, Michael J.
Object Type: Report
System: The UNT Digital Library
Accelerated Vehicle Retirement for Fuel Economy: "Cash for Clunkers" (open access)

Accelerated Vehicle Retirement for Fuel Economy: "Cash for Clunkers"

This report outlines the key provisions of the Consumer Assistance to Recycle and Save (CARS) program established by P.L. 111-32, which provide rebates to prospective purchasers toward the purchase of new, fuel-efficient vehicles, provided the trade-in vehicles are scrapped. It discusses the impact of the program on the economy and also summarizes similar programs in other industrial countries.
Date: March 3, 2010
Creator: Yacobucci, Brent D. & Canis, Bill
Object Type: Report
System: The UNT Digital Library
Accounting for Global Climate Model Projection Uncertainty in Modern Statistical Downscaling (open access)

Accounting for Global Climate Model Projection Uncertainty in Modern Statistical Downscaling

Future climate change has emerged as a national and a global security threat. To carry out the needed adaptation and mitigation steps, a quantification of the expected level of climate change is needed, both at the global and the regional scale; in the end, the impact of climate change is felt at the local/regional level. An important part of such climate change assessment is uncertainty quantification. Decision and policy makers are not only interested in 'best guesses' of expected climate change, but rather probabilistic quantification (e.g., Rougier, 2007). For example, consider the following question: What is the probability that the average summer temperature will increase by at least 4 C in region R if global CO{sub 2} emission increases by P% from current levels by time T? It is a simple question, but one that remains very difficult to answer. It is answering these kind of questions that is the focus of this effort. The uncertainty associated with future climate change can be attributed to three major factors: (1) Uncertainty about future emission of green house gasses (GHG). (2) Given a future GHG emission scenario, what is its impact on the global climate? (3) Given a particular evolution of the …
Date: March 17, 2010
Creator: Johannesson, G
Object Type: Report
System: The UNT Digital Library
Actinic imaging of native and programmed defects on a full-field mask (open access)

Actinic imaging of native and programmed defects on a full-field mask

We describe the imaging and characterization of native defects on a full field extreme ultraviolet (EUV) mask, using several reticle and wafer inspection modes. Mask defect images recorded with the SEMA TECH Berkeley Actinic Inspection Tool (AIT), an EUV-wavelength (13.4 nm) actinic microscope, are compared with mask and printed-wafer images collected with scanning electron microscopy (SEM) and deep ultraviolet (DUV) inspection tools. We observed that defects that appear to be opaque in the SEM can be highly transparent to EUV light, and inversely, defects that are mostly transparent to the SEM can be highly opaque to EUV. The nature and composition of these defects, whether they appear on the top surface, within the multilayer coating, or on the substrate as buried bumps or pits, influences both their significance when printed, and their detectability with the available techniques. Actinic inspection quantitatively predicts the characteristics of printed defect images in ways that may not be possible with non-EUV techniques. As a quantitative example, we investigate the main structural characteristics of a buried pit defect based on EUV through-focus imaging.
Date: March 12, 2010
Creator: Mochi, I.; Goldberg, K. A.; Fontaine, B. La; Tchikoulaeva, A. & Holfeld, C.
Object Type: Article
System: The UNT Digital Library
Actual Waste Testing With a Single Disk Spintek Rotary Microfilter (open access)

Actual Waste Testing With a Single Disk Spintek Rotary Microfilter

This report is a descriptive account on the Actual Waste Testing With a Single Disk Spintek Rotary Microfilter
Date: March 8, 2010
Creator: Huber, H. J.
Object Type: Article
System: The UNT Digital Library
Adult Human Pancreatic Islet Beta-Cells Display Limited Turnover and Long Lifespan as Determined by In-Vivo Thymidine Analog Incorporation and Radiocarbon Dating (open access)

Adult Human Pancreatic Islet Beta-Cells Display Limited Turnover and Long Lifespan as Determined by In-Vivo Thymidine Analog Incorporation and Radiocarbon Dating

Diabetes mellitus results from an absolute or relative deficiency of insulin producing pancreatic beta-cells. The adult human beta-cell's turnover rate remains unknown. We employed novel techniques to examine adult human islet beta-cell turnover and longevity in vivo. Subjects enrolled in NIH clinical trials received thymidine analogues [iododeoxyuridine (IdU) or bromodeoxyuridine (BrdU)] 8-days to 4-years prior to death. Archival autopsy samples from ten patients (aged 17-74 years) were employed to assess beta-cell turnover by scoring nuclear analog labeling within insulin staining cells. Human adult beta-cell longevity was determined by estimating the cells genomic DNA integration of atmospheric carbon-14 ({sup 14}C). DNA was purified from pancreatic islets isolated from cadaveric donors; whole islet prep DNA was obtained from a 15 year old donor, and purified beta-cell DNA was obtained from two donors (age 48 and 80 years). {sup 14}C levels were then determined using accelerator mass spectrometry (AMS). Cellular 'birth date' was determined by comparing the subject's DNA {sup 14}C content relative to a well-established {sup 14}C atmospheric prevalence curve. In the two subjects less than age 20 years, 1-2% of the beta-cell nuclei co-stained for BrdU/IdU. No beta-cell nuclei co-stained in the eight patients more than 30 years old. Consistent with …
Date: March 15, 2010
Creator: Perl, S.; Kushner, J. A.; Buchholz, B. A.; Meeker, A. K.; Stein, G. M.; Hsieh, M. et al.
Object Type: Article
System: The UNT Digital Library
Advanced Combustion Diagnostics and Control for Furnaces, Fired Heaters and Boilers (open access)

Advanced Combustion Diagnostics and Control for Furnaces, Fired Heaters and Boilers

The objective of this project was to develop and apply enabling tools and methods towards advanced combustion diagnostics and control of fired-equipment in large-scale petrochemical manufacturing. There are a number of technology gaps and opportunities for combustion optimization, including technologies involving advanced in-situ measurements, modeling, and thermal imaging. These technologies intersect most of manufacturing and energy systems within the chemical industry. This project leveraged the success of a previous DOE funded project led by Dow, where we co-developed an in-situ tunable diode laser (TDL) analyzer platform (with Analytical Specialties Inc, now owned by Yokogawa Electric Corp.). The TDL platform has been tested and proven in a number of combustion processes within Dow and outside of Dow. The primary focus of this project was on combustion diagnostics and control applied towards furnaces, fired heaters and boilers. Special emphasis was placed on the development and application of in-situ measurements for O2, CO and methane since these combustion gases are key variables in optimizing and controlling combustion processes safely. Current best practice in the industry relies on measurements that suffer from serious performance gaps such as limited sampling volume (point measurements), poor precision and accuracy, and poor reliability. Phase I of the project …
Date: March 20, 2010
Creator: Tate, J. D.; Le, Linh D.; Knittel,Trevor & Cowie, Alan
Object Type: Report
System: The UNT Digital Library