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Office of Scientific & Technical Information Technical Reports
491
Congressional Research Service Reports
135
Texas State Publications
124
Government Accountability Office Reports
93
End of Term Publications
17
Texas State Auditor's Office: Reports
6
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5
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4
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2
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12 GeV Upgrade Project - Cryomodule Production
The Thomas Jefferson National Accelerator Facility (Jefferson Lab) is producing ten 100+MV SRF cryomodules (C100) as part of the CEBAF 12 GeV Upgrade Project. Once installed, these cryomodules will become part of an integrated accelerator system upgrade that will result in doubling the energy of the CEBAF machine from 6 to 12 GeV. This paper will present a complete overview of the C100 cryomodule production process. The C100 cryomodule was designed to have the major components procured from private industry and assembled together at Jefferson Lab. In addition to measuring the integrated component performance, the performance of the individual components is verified prior to being released for production and assembly into a cryomodule. Following a comprehensive cold acceptance test of all subsystems, the completed C100 cryomodules are installed and commissioned in the CEBAF machine in preparation of accelerator operations. This overview of the cryomodule production process will include all principal performance measurements, acceptance criterion and up to date status of current activities.
Date:
July 1, 2012
Creator:
J. Hogan, A. Burrill, G.K. Davis, M.A. Drury, M. Wiseman
Object Type:
Article
System:
The UNT Digital Library
50% Advanced Energy Design Guides: Preprint
This paper presents the process, methodology, and assumptions for the development of the 50% Energy Savings Advanced Energy Design Guides (AEDGs), a design guidance document that provides specific recommendations for achieving 50% energy savings above the requirements of ANSI/ASHRAE/IESNA Standard 90.1-2004 in four building types: (1) Small to medium office buildings, (2) K-12 school buildings, (3) Medium to big box retail buildings, (4) Large hospital buildings.
Date:
July 1, 2012
Creator:
Bonnema, E.; Leach, M.; Pless, S.; Liu, B.; Wang, W.; Thornton, B. et al.
Object Type:
Article
System:
The UNT Digital Library
Accelerator R&D: Research for Science - Science for Society
In September 2011 the US Senate Appropriations Committee requested a ten-year strategic plan from the Department of Energy (DOE) that would describe how accelerator R&D today could advance applications directly relevant to society. Based on the 2009 workshop 'Accelerators for America's Future' an assessment was made on how accelerator technology developed by the nation's laboratories and universities could directly translate into a competitive strength for industrial partners and a variety of government agencies in the research, defense and national security sectors. The Office of High Energy Physics, traditionally the steward for advanced accelerator R&D within DOE, commissioned a task force under its auspices to generate and compile ideas on how best to implement strategies that would help fulfill the needs of industry and other agencies, while maintaining focus on its core mission of fundamental science investigation.
Date:
July 2012
Creator:
Holtkamp, N.; Biedron, S.; Boeh, L.; Clayton, J.; Gourlay, S.; Hamm, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Accommodating oversize and overweight loads: technical report
"In this report the research project resulted in a statewide map recommending primary and alternate Oversize/ overweight (OS/OW)route networks for the most common origins and destinations based on historical Motor Carrier Division data. Keeping strategic routes open for OS/OW loads and minimizing the number of reroutes along the way will reduce the impedance and unknowns in this critical segment of the motor carrier industry."
Date:
July 2012
Creator:
Middleton, Daniel R.; Li, Yingfeng; Le, Jerry & Koncz, Nicholas
Object Type:
Report
System:
The Portal to Texas History
Activating Teens to Prevent Traffic Crashes
Document discussing methods for preventing traffic crashes by American teenagers.
Date:
July 2012
Creator:
Henk, Russell H.
Object Type:
Report
System:
The Portal to Texas History
Active-Interrogation Measurements of Induced-Fission Neutrons from Low-Enriched Uranium
Protection and control of nuclear fuels is paramount for nuclear security and safeguards; therefore, it is important to develop fast and robust controlling mechanisms to ensure the safety of nuclear fuels. Through both passive- and active-interrogation methods we can use fast-neutron detection to perform real-time measurements of fission neutrons for process monitoring. Active interrogation allows us to use different ranges of incident neutron energy to probe for different isotopes of uranium. With fast-neutron detectors, such as organic liquid scintillation detectors, we can detect the induced-fission neutrons and photons and work towards quantifying a sample’s mass and enrichment. Using MCNPX-PoliMi, a system was designed to measure induced-fission neutrons from U-235 and U-238. Measurements were then performed in the summer of 2010 at the Joint Research Centre in Ispra, Italy. Fissions were induced with an associated particle D-T generator and an isotopic Am-Li source. The fission neutrons, as well as neutrons from (n, 2n) and (n, 3n) reactions, were measured with five 5” by 5” EJ-309 organic liquid scintillators. The D-T neutron generator was available as part of a measurement campaign in place by Padova University. The measurement and data-acquisition systems were developed at the University of Michigan utilizing a CAEN V1720 …
Date:
July 1, 2012
Creator:
Dolan, J. L.; Marcath, M. J.; Flaska, M.; Pozzi, S. A.; Chichester, D. L.; Tomanin, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Advancing Residential Retrofits in Atlanta
This report will summarize the home energy improvements performed in the Atlanta, GA area. In total, nine homes were retrofitted with eight of the homes having predicted source energy savings of approximately 30% or greater based on simulated energy consumption.
Date:
July 1, 2012
Creator:
Jackson, Roderick K; Kim, Eyu-Jin; Roberts, Sydney & Stephenson, Robert
Object Type:
Report
System:
The UNT Digital Library
The Advocate, Volume 17, Issue 3, July-September 2012
Quarterly update providing information on environmental regulations for small businesses and local governments in Texas.
Date:
July 2012
Creator:
Texas Commission on Environmental Quality. Small Business and Environmental Assistance Division.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
AGC-2 Irradiation Data Qualification Final Report
The Graphite Technology Development Program will run a series of six experiments to quantify the effects of irradiation on nuclear grade graphite. The second Advanced Graphite Creep (AGC) experiment (AGC-2) began with Advanced Test Reactor (ATR) Cycle 149A on April 12, 2011, and ended with ATR Cycle 151B on May 5, 2012. The purpose of this report is to qualify AGC-2 irradiation monitoring data following INL Management and Control Procedure 2691, Data Qualification. Data that are Qualified meet the requirements for data collection and use as described in the experiment planning and quality assurance documents. Data that do not meet the requirements are Failed. Some data may not quite meet the requirements, but may still provide some useable information. These data are labeled as Trend. No Trend data were identified for the AGC-2 experiment. All thermocouples functioned throughout the AGC-2 experiment. There was one instance where spurious signals or instrument power interruption resulted in a recorded temperature value being well outside physical reality. This value was identified and labeled as Failed data. All other temperature data are Qualified. All helium and argon gas flow data are within expected ranges. Total gas flow was approximately 50 sccm through the capsule. Helium …
Date:
July 1, 2012
Creator:
Hull, Laurence C.
Object Type:
Report
System:
The UNT Digital Library
Ahorro Energia: Consejos Sobre Como Ahorrar Dinero y Energia en su Casa [Brochure]
The Spanish-language version of U.S. Department of Energy's consumer guide to saving energy and money at home and on the road.
Date:
July 1, 2012
Creator:
unknown
Object Type:
Pamphlet
System:
The UNT Digital Library
AHTR Refueling Systems and Process Description
The Advanced High-Temperature Reactor (AHTR) is a design concept for a central station-type [1500 MW(e)] Fluoride salt-cooled High-temperature Reactor (FHR) that is currently undergoing development by Oak Ridge National Laboratory for the US. Department of Energy, Office of Nuclear Energy's Advanced Reactor Concepts program. FHRs, by definition, feature low-pressure liquid fluoride salt cooling, coated-particle fuel, a high-temperature power cycle, and fully passive decay heat rejection. The overall goal of the AHTR development program is to demonstrate the technical feasibility of FHRs as low-cost, large-size power producers while maintaining full passive safety. The AHTR is approaching a preconceptual level of maturity. An initial integrated layout of its major systems, structures, and components (SSCs), and an initial, high-level sequence of operations necessary for constructing and operating the plant is nearing completion. An overview of the current status of the AHTR concept has been recently published and a report providing a more detailed overview of the AHTR structures and mechanical systems is currently in preparation. This report documents the refueling components and processes envisioned at this early development phase. The report is limited to the refueling aspects of the AHTR and does not include overall reactor or power plant design information. The report, …
Date:
July 1, 2012
Creator:
Varma, Venugopal Koikal; Holcomb, David Eugene; Bradley, Eric Craig; Zaharia, Nathaniel M & Cooper, Eliott J
Object Type:
Report
System:
The UNT Digital Library
ALARM STRATEGY AND COMPLEXITY: PREDICTIONS OF OPERATOR RESPONSE
Decision support for operators is not new, and much has been written regarding the potential usefulness of digital support systems and alarm filtering strategies. However, determining the appropriate characteristics of decision support tools is difficult, especially when alarms can vary in the manner which diagnostic information is formulated and displayed and when event scenario types are complex and numerous. When first reviewed, the advantages or disadvantages of a particular alarm approach may not be apparent to the designer or analyst. The present research focuses on the review of two particular alarm strategies, binary alarm type (BAT) and likelihood alarm type (LAT), and reviews their influence upon accuracy, bias, and trust for tasks performed at a computer workstation capable of replicating a series of control-room-like alarms. The findings are discussed in terms of the of the performance advantages of likelihood alarm technology and related research as an aid to the alarm design process.
Date:
July 1, 2012
Creator:
Ragsdale, Austin; Lew, Roger; Dyre, Brian; Boring, Ronald & Gertman, David
Object Type:
Article
System:
The UNT Digital Library
An Analysis of Electrostatic Discharge Considerations in the Use of Sodium Bicarbonate Media for De-Potting Sensitive Electronic Assemblies
This paper presents the results of a study that identifies significant process variables and their contribution to ESD generation.
Date:
July 1, 2012
Creator:
Kinzel, Robert L.
Object Type:
Report
System:
The UNT Digital Library
ANALYSIS OF HIGH FIELD NON-LINEAR LOSSES ON SRF SURFACES DUE TO SPECIFIC TOPOGRAPHIC ROUGHNESS
The high-field performance of SRF cavities will eventually be limited by the realization of fundamental material limits, whether it is Hc1 or Hsh, or some derivative thereof, at which the superconductivity is lost. Before reaching this fundamental field limit at the macro level, it must be encountered at localized, perhaps microscopic, sites of field enhancement due to local topography. If such sites are small enough, they may produce thermally stabilized normal-conducting regions which contribute non-linear losses when viewed from the macro resonant field perspective, and thus produce degradation in Q0. We have undertaken a calculation of local surface magnetic field enhancement from specific fine topographic structure by conformal mapping method and numerically. A solution of the resulting normal conducting volume has been derived and the corresponding RF Ohmic loss simulated.
Date:
July 1, 2012
Creator:
Chen Xu,Charles Reece,Michael Kelley
Object Type:
Article
System:
The UNT Digital Library
Analysis of Underground Storage Tanks System Materials to Increased Leak Potential Associated with E15 Fuel
The Energy Independence and Security Act (EISA) of 2007 was enacted by Congress to move the nation toward increased energy independence by increasing the production of renewable fuels to meet its transportation energy needs. The law establishes a new renewable fuel standard (RFS) that requires the nation to use 36 billion gallons annually (2.3 million barrels per day) of renewable fuel in its vehicles by 2022. Ethanol is the most widely used renewable fuel in the US, and its production has grown dramatically over the past decade. According to EISA and RFS, ethanol (produced from corn as well as cellulosic feedstocks) will make up the vast majority of the new renewable fuel requirements. However, ethanol use limited to E10 and E85 (in the case of flex fuel vehicles or FFVs) will not meet this target. Even if all of the E0 gasoline dispensers in the country were converted to E10, such sales would represent only about 15 billion gallons per year. If 15% ethanol, rather than 10% were used, the potential would be up to 22 billion gallons. The vast majority of ethanol used in the United States is blended with gasoline to create E10, that is, gasoline with up …
Date:
July 1, 2012
Creator:
Kass, Michael D; Theiss, Timothy J; Janke, Christopher James & Pawel, Steven J
Object Type:
Report
System:
The UNT Digital Library
Application of Vacancy Injection Gettering to Improve Efficiency of Solar Cells Produced by Millinet Solar: Cooperative Research and Development Final Report, CRADA Number CRD-10-417
NREL will apply vacancy injection gettering (VIG) to Millinet solar cells and evaluate the performance improvement produced by this process step. The VIG will be done in conjunction with the formation of a back, Al-alloyed, contact. Millinet Solar will provide NREL with cells having AR coating on the front side and screen-printed Al on the backside, which will be processed in the NREL's optical furnace to perform simultaneous VIG and back contact alloying with deep BSF. These cells will be sent back to Millinet solar for a screen-printed front/side contact mask, followed by a second firing at NREL. Detailed analyses will be performed to determine improvements due to BSF and VIG.
Date:
July 1, 2012
Creator:
Sopori, B.
Object Type:
Report
System:
The UNT Digital Library
Aquifer Test and Related Well Information from Public Water Supply Wells in Groundwater Management Area 8: Final Report
This report developed a database and a suite of visualization tools to support the analysis of information from approximately 1,000 aquifer tests and 4,000 public water supply (PWS) wells located in Groundwater Management Area 8 (GMA 8). (p. ix).
Date:
July 2012
Creator:
Young, Steven C.; Jia, Meng; Pinkard, James & Lupton, Daniel
Object Type:
Report
System:
The Portal to Texas History
Arc Spray Termination of Extended Foil Capacitors.
Twin wire arc spray is evaluated as a termination method for the fabrication of extended foil wound capacitors. A full design of experiments is performed, analyzing various spray processing conditions and their effects on relevant electrical performance. Cross sectional metallography and electrical testing are used to evaluate potential damage caused by the deposition process as well as the overall quality of the finished capacitor sprayed under different conditions. Major findings are consistent with previously published work indicating that arc spray is a viable candidate for terminating foil capacitors.
Date:
July 1, 2012
Creator:
Hall, Aaron Christopher; McCloskey, James F.; Beatty, David Edgar; Padilla, Henry A., II; Wyatt, Luke Henry & Othling, Stephen W.
Object Type:
Report
System:
The UNT Digital Library
Assessing Public Benefits and Costs of Freight Transportation Projects: Measuring Shippers' Value of Delay on the Freight System
This report gauges the economic impact of freight delay due to highway congestion, this project focuses on estimating shippers' value of delay (VOD).
Date:
July 2012
Creator:
Gong, Qi; Miao, Qing; Wang, Bruce X. & Adams, Teresa M.
Object Type:
Report
System:
The Portal to Texas History
Assessing the Feasibility of Using Neutron Resonance Transmission Analysis (NRTA) for Assaying Plutonium in Spent Fuel Assemblies
Neutron resonance transmission analysis (NRTA) is an active-interrogation nondestructive assay (NDA) technique capable of assaying spent nuclear fuel to determine plutonium content. Prior experimental work has definitively shown the technique capable of assaying plutonium isotope composition in spent-fuel pins to a precision of approximately 3%, with a spatial resolution of a few millimeters. As a Grand Challenge to investigate NDA options for assaying spent fuel assemblies (SFAs) in the commercial fuel cycle, Idaho National Laboratory has explored the feasibility of using NRTA to assay plutonium in a whole SFA. The goal is to achieve a Pu assay precision of 1%. The NRTA technique uses low-energy neutrons from 0.1-40 eV, at the bottom end of the actinide-resonance range, in a time-of-flight arrangement. Isotopic composition is determined by relating absorption of the incident neutrons to the macroscopic cross-section of the actinides of interest in the material, and then using this information to determine the areal density of the isotopes in the SFA. The neutrons used for NRTA are produced using a pulsed, accelerator-based neutron source. Distinguishable resonances exist for both the plutonium (239,240,241,242Pu) and uranium (235,236,238U) isotopes of interest in spent fuel. Additionally, in this energy range resonances exists for six important …
Date:
July 1, 2012
Creator:
Chichester, D. L. & Sterbentz, J. W.
Object Type:
Article
System:
The UNT Digital Library
Assessment of Feasibility of the Beneficial Use of Waste Heat from the Advanced Test Reactor
This report investigates the feasibility of using waste heat from the Advanced Test Reactor (ATR). A proposed glycol waste heat recovery system was assessed for technical and economic feasibility. The system under consideration would use waste heat from the ATR secondary coolant system to preheat air for space heating of TRA-670. A tertiary coolant stream would be extracted from the secondary coolant system loop and pumped to a new plate and frame heat exchanger, where heat would be transferred to a glycol loop for preheating outdoor air in the heating and ventilation system. Historical data from Advanced Test Reactor operations over the past 10 years indicates that heat from the reactor coolant was available (when needed for heating) for 43.5% of the year on average. Potential energy cost savings by using the waste heat to preheat intake air is $242K/yr. Technical, safety, and logistics considerations of the glycol waste heat recovery system are outlined. Other opportunities for using waste heat and reducing water usage at ATR are considered.
Date:
July 1, 2012
Creator:
Guillen, Donna P.
Object Type:
Report
System:
The UNT Digital Library
Assessment of the U.S. Department of Energy's Home Energy Scoring Tool
The National Renewable Energy Laboratory (NREL) conducted a series of assessments of the U.S. Department of Energy's (DOE) proposed Home Energy Scoring Tool (HEST). This report is an assessment of the 4/27/2012 release of HEST. Predictions of electric and natural gas consumption were compared with weather-normalized utility billing data for a mixture of newer and older homes located in Oregon, Wisconsin, Minnesota, North Carolina and Texas.
Date:
July 1, 2012
Creator:
Roberts, D.; Merket, N.; Polly, B.; Heaney, M.; Casey, S. & Robertson, J.
Object Type:
Report
System:
The UNT Digital Library
Atlanta State Park [Rack Card]
Card advertising Atlanta State Park with brief descriptive information and a summary of activities, facilities, and other features of the location.
Date:
July 2012
Creator:
Texas. Parks and Wildlife Department.
Object Type:
Pamphlet
System:
The Portal to Texas History
An Audit Report on Contract Management at the Department of Motor Vehicles
Report of the Texas State Auditor's Office related to determining whether the Department of Motor Vehicles (Department) procures contracted goods and services in accordance with applicable state laws, rules, and Department policies and procedures to help ensure that the State's financial interests are protected, and whether the Department has processes and related controls to help ensure that contractors perform according to the terms of their contracts and that the Department processes contractor payments in accordance with applicable state laws, rules, Office of the Comptroller of Public Accounts requirements, and Department policies and procedures.
Date:
July 2012
Creator:
Texas. Office of the State Auditor.
Object Type:
Report
System:
The Portal to Texas History