Controlled Hydrogen Fleet and Infrastructure Demonstration and Validation Project (open access)

Controlled Hydrogen Fleet and Infrastructure Demonstration and Validation Project

General Motors, LLC and energy partner Shell Hydrogen, LLC, deployed a system of hydrogen fuel cell electric vehicles integrated with a hydrogen fueling station infrastructure to operate under real world conditions as part of the U.S. Department of Energy's Controlled Hydrogen Fleet and Infrastructure Validation and Demonstration Project. This technical report documents the performance and describes the learnings from progressive generations of vehicle fuel cell system technology and multiple approaches to hydrogen generation and delivery for vehicle fueling.
Date: February 8, 2012
Creator: Stottler, Gary
Object Type: Report
System: The UNT Digital Library
INDEPENDENT VERIFICATION OF THE BUILDING 3550 SLAB AT OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE (open access)

INDEPENDENT VERIFICATION OF THE BUILDING 3550 SLAB AT OAK RIDGE NATIONAL LABORATORY OAK RIDGE, TENNESSEE

The Oak Ridge Institute for Science and Education (ORISE) has completed the independent verification survey of the Building 3550 Slab. The results of this effort are provided. The objective of this verification survey is to provide independent review and field assessment of remediation actions conducted by Safety and Ecology Corporation (SEC) to document that the final radiological condition of the slab meets the release guidelines. Verification survey activities on the Building 3550 Slab that included scans, measurements, and the collection of smears. Scans for alpha, alpha plus beta, and gamma activity identified several areas that were investigated.
Date: May 8, 2012
Creator: Weaver, Phyllis C.
Object Type: Report
System: The UNT Digital Library
Integrated, Geothermal-CO2 Storage Reservoirs: Adaptable, Multi-Stage, Sustainable, Energy-Recovery Strategies that Reduce Carbon Intensity and Environmental Risk (open access)

Integrated, Geothermal-CO2 Storage Reservoirs: Adaptable, Multi-Stage, Sustainable, Energy-Recovery Strategies that Reduce Carbon Intensity and Environmental Risk

None
Date: May 8, 2012
Creator: Buscheck, T A; Elliot, T R; Celia, M A; Chen, M; Hao, Y; Lu, C et al.
Object Type: Article
System: The UNT Digital Library
Annual Site Environmental Report for Calendar Years 2009 to 2010 (open access)

Annual Site Environmental Report for Calendar Years 2009 to 2010

This report presents the results of environmental activities and monitoring programs at the Princeton Plasma Physics Laboratory (PPPL) for Calendar Years 2009-2010. The report provides the U.S. Department of Energy (DOE) and the public with information on the level of radioactive and non-radioactive pollutants, if any, that are released into the environment as a result of PPPL operations. The report also summarizes environmental initiatives, assessments, and programs that were undertaken in 2009-2010. The objective of the Site Environmental Report is to document PPPL's efforts to protect the public's health and the environment through its environmental protection, safety, and health programs. __________________________________________________
Date: August 8, 2012
Creator: Finley, Virginia
Object Type: Report
System: The UNT Digital Library
RECOVERY ACT: MULTIMODAL IMAGING FOR SOLAR CELL MICROCRACK DETECTION (open access)

RECOVERY ACT: MULTIMODAL IMAGING FOR SOLAR CELL MICROCRACK DETECTION

Undetected microcracks in solar cells are a principal cause of failure in service due to subsequent weather exposure, mechanical flexing or diurnal temperature cycles. Existing methods have not been able to detect cracks early enough in the production cycle to prevent inadvertent shipment to customers. This program, sponsored under the DOE Photovoltaic Supply Chain and Cross-Cutting Technologies program, studied the feasibility of quantifying surface micro-discontinuities by use of a novel technique, thermoreflectance imaging, to detect surface temperature gradients with very high spatial resolution, in combination with a suite of conventional imaging methods such as electroluminescence. The project carried out laboratory tests together with computational image analyses using sample solar cells with known defects supplied by industry sources or DOE National Labs. Quantitative comparisons between the effectiveness of the new technique and conventional methods were determined in terms of the smallest detectable crack. Also the robustness of the new technique for reliable microcrack detection was determined at various stages of processing such as before and after antireflectance treatments. An overall assessment is that the new technique compares favorably with existing methods such as lock-in thermography or ultrasonics. The project was 100% completed in Sept, 2010. A detailed report of key findings …
Date: February 8, 2012
Creator: Hudgings, Janice & Domash, Lawrence
Object Type: Report
System: The UNT Digital Library
Jet Substructure at the Tevatron And LHC: New Results, New Tools, New Benchmarks (open access)

Jet Substructure at the Tevatron And LHC: New Results, New Tools, New Benchmarks

None
Date: November 8, 2012
Creator: Altheimer, A.; U., /Columbia; Arora, S.; /Rutgers U., Piscataway; Asquith, L.; /Argonne et al.
Object Type: Article
System: The UNT Digital Library
EVALUATION OF FABRIC MEMBRANES FOR USE IN SALTSTONE DRAIN WATER SYSTEM (open access)

EVALUATION OF FABRIC MEMBRANES FOR USE IN SALTSTONE DRAIN WATER SYSTEM

Saltstone Disposal Unit 2 contains a sheet drain fabric intended to separate solids from drain water to be returned to the Salt Feed Tank. A similar system installed in Vault 4 appears to be ineffective in keeping solids out of the drain water return lines. Waste Solidification Engineering is considering installation of an additional fabric membrane to supplement the existing sheet drain in SDU 2. Amerdrain 200 is the product currently installed in SDU 2. This product is no longer available, so Sitedrain 94 was used as the replacement product in this testing. Fabrics with apparent opening sizes of 10, 25, 50 and 100 microns were evaluated. These fabrics were evaluated under three separate test conditions, a water flow test, a solids retention test and a grout pour test. A flow test with water showed that installation of an additional filter layer will predictably reduce the theoretical flux through the sheet drain. The manufacturer reports the flux for Sitedrain 94 as 150 gpm/ft{sup 2} by ASTM D-4491. This compares reasonably well with the 117 gpm/ft{sup 2} obtained in this testing. A combination of the 10 micron fabric with Sitedrain 94 could be expected to decrease flux by about 10 times …
Date: March 8, 2012
Creator: Pickenheim, B.; Miller, D. & Burket, P.
Object Type: Report
System: The UNT Digital Library
GEOCHEMICAL MODELING OF F AREA SEEPAGE BASIN COMPOSITION AND VARIABILITY (open access)

GEOCHEMICAL MODELING OF F AREA SEEPAGE BASIN COMPOSITION AND VARIABILITY

From the 1950s through 1989, the F Area Seepage Basins at the Savannah River Site (SRS) received low level radioactive wastes resulting from processing nuclear materials. Discharges of process wastes to the F Area Seepage Basins followed by subsequent mixing processes within the basins and eventual infiltration into the subsurface resulted in contamination of the underlying vadose zone and downgradient groundwater. For simulating contaminant behavior and subsurface transport, a quantitative understanding of the interrelated discharge-mixing-infiltration system along with the resulting chemistry of fluids entering the subsurface is needed. An example of this need emerged as the F Area Seepage Basins was selected as a key case study demonstration site for the Advanced Simulation Capability for Environmental Management (ASCEM) Program. This modeling evaluation explored the importance of the wide variability in bulk wastewater chemistry as it propagated through the basins. The results are intended to generally improve and refine the conceptualization of infiltration of chemical wastes from seepage basins receiving variable waste streams and to specifically support the ASCEM case study model for the F Area Seepage Basins. Specific goals of this work included: (1) develop a technically-based 'charge-balanced' nominal source term chemistry for water infiltrating into the subsurface during basin …
Date: May 8, 2012
Creator: Millings, M.; Denham, M. & Looney, B.
Object Type: Report
System: The UNT Digital Library
Nuclear Weapons: NNSA Needs to Improve Guidance on Weapon Limitations and Planning for Its Stockpile Surveillance Program (open access)

Nuclear Weapons: NNSA Needs to Improve Guidance on Weapon Limitations and Planning for Its Stockpile Surveillance Program

A letter report issued by the Government Accountability Office with an abstract that begins "For the 52 NNSA identified limitations for all weapons in the U.S. nuclear stockpile, 86 percent fall into six types: detonation safety under abnormal conditions, weapon reliability, weapon delivery, more frequent replacement of limited life components, nuclear yield, and worker safety. Some DOD officials expressed concern over the impact that certain weapon limitations have on weapon operation, maintenance, and war planning. According to DOD officials, current DOD mitigation actions, as well as the successful completion of ongoing and planned NNSA efforts, should address most limitations for which the officials raised concerns. DOD officials stated that the current stockpile allows sufficient flexibility to mitigate limitations. However, they told GAO that there may be less flexibility in the future as the stockpile continues to age and decreases in size. For each weapon system, NNSA provides DOD with guidance containing additional information on nuclear weapon limitations. However, GAO found that this guidance does not cover all limitations and some DOD officials said that it may not provide them with relevant information for some limitations. Specifically, the guidance addresses approximately 60 percent of all limitations but does not include limitations …
Date: February 8, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
U.S. National Science Foundation: An Overview (open access)

U.S. National Science Foundation: An Overview

None
Date: August 8, 2012
Creator: Matthews, Christine M.
Object Type: Report
System: The UNT Digital Library
Keeping America’s Pipelines Safe and Secure: Key Issues for Congress (open access)

Keeping America’s Pipelines Safe and Secure: Key Issues for Congress

None
Date: February 8, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Medicare: Progress Made to Deter Fraud, but More Could Be Done (open access)

Medicare: Progress Made to Deter Fraud, but More Could Be Done

Testimony issued by the Government Accountability Office with an abstract that begins "The Centers for Medicare & Medicaid Services (CMS)—the agency that administers Medicare—has made progress in implementing several key strategies GAO identified in prior work as helpful in protecting Medicare from fraud; however, important actions that could help CMS and its program integrity contractors combat fraud remain incomplete."
Date: June 8, 2012
Creator: United States. Government Accountability Office.
Object Type: Text
System: The UNT Digital Library
Humanitarian and Development Assistance: Project Evaluations and Better Information Sharing Needed to Manage the Military's Efforts (open access)

Humanitarian and Development Assistance: Project Evaluations and Better Information Sharing Needed to Manage the Military's Efforts

A letter report issued by the Government Accountability Office with an abstract that begins "The Department of DefenseÂ’s (DOD) management of its key humanitarian assistance programs reflects both positive practices and weaknesses:"
Date: February 8, 2012
Creator: United States. Government Accountability Office.
Object Type: Report
System: The UNT Digital Library
The Altus Times (Altus, Okla.), Vol. 113, No. 49, Ed. 1 Wednesday, August 8, 2012 (open access)

The Altus Times (Altus, Okla.), Vol. 113, No. 49, Ed. 1 Wednesday, August 8, 2012

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 8, 2012
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Greensheet (Dallas, Tex.), Vol. 35, No. 310, Ed. 1 Wednesday, February 8, 2012 (open access)

The Greensheet (Dallas, Tex.), Vol. 35, No. 310, Ed. 1 Wednesday, February 8, 2012

Free weekly newspaper that includes business and classified advertising.
Date: February 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The U.S.-Panama Free Trade Agreement (open access)

The U.S.-Panama Free Trade Agreement

None
Date: November 8, 2012
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Government Transparency and Secrecy: An Examination of Meaning and Its Use in the Executive Branch (open access)

Government Transparency and Secrecy: An Examination of Meaning and Its Use in the Executive Branch

This report subsequently examines the statutes, initiatives, requirements, and other actions that make information more available to the public or protext it from public release
Date: November 8, 2012
Creator: Ginsberg, Wendy; Carey, Maeve P.; Halchin, L. Elaine & Keegan, Natalie
Object Type: Report
System: The UNT Digital Library
Brownwood Bulletin (Brownwood, Tex.), Vol. 113, No. 21, Ed. 1 Thursday, November 8, 2012 (open access)

Brownwood Bulletin (Brownwood, Tex.), Vol. 113, No. 21, Ed. 1 Thursday, November 8, 2012

Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.
Date: November 8, 2012
Creator: Deason, Gene
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Houston, Tex.), Vol. 43, No. 330, Ed. 1 Wednesday, August 8, 2012 (open access)

The Greensheet (Houston, Tex.), Vol. 43, No. 330, Ed. 1 Wednesday, August 8, 2012

Free weekly newspaper that includes business and classified advertising.
Date: August 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Panola Watchman (Carthage, Tex.), Vol. 140, No. 3, Ed. 1 Sunday, January 8, 2012 (open access)

The Panola Watchman (Carthage, Tex.), Vol. 140, No. 3, Ed. 1 Sunday, January 8, 2012

Semiweekly newspaper from Carthage, Texas that includes local, state, and national news along with advertising.
Date: January 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 35, No. 309, Ed. 1 Wednesday, February 8, 2012 (open access)

The Greensheet (Dallas, Tex.), Vol. 35, No. 309, Ed. 1 Wednesday, February 8, 2012

Free weekly newspaper that includes business and classified advertising.
Date: February 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Brownwood Bulletin (Brownwood, Tex.), Vol. 113, No. 47, Ed. 1 Saturday, December 8, 2012 (open access)

Brownwood Bulletin (Brownwood, Tex.), Vol. 113, No. 47, Ed. 1 Saturday, December 8, 2012

Weekly newspaper from Brownwood, Texas that includes local, state and national news along with advertising.
Date: December 8, 2012
Creator: Stuckly, Derrick
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Fort Worth, Tex.), Vol. 35, No. 341, Ed. 1 Thursday, March 8, 2012 (open access)

The Greensheet (Fort Worth, Tex.), Vol. 35, No. 341, Ed. 1 Thursday, March 8, 2012

Free weekly newspaper that includes business and classified advertising.
Date: March 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 339, Ed. 1 Thursday, March 8, 2012 (open access)

The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 35, No. 339, Ed. 1 Thursday, March 8, 2012

Free weekly newspaper that includes business and classified advertising.
Date: March 8, 2012
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History