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Arctic Energy Technology Development Laboratory (Part 2)
Methane (CH{sub 4}) in natural gas is a major energy source in the U.S., and is used extensively on Alaska's North Slope, including the oilfields in Prudhoe Bay, the community of Barrow, and the National Petroleum Reserve, Alaska (NPRA). Smaller villages, however, are dependent on imported diesel fuel for both power and heating, resulting in some of the highest energy costs in the U.S. and crippling local economies. Numerous CH{sub 4} gas seeps have been observed on wetlands near Atqasuk, Alaska (in the NPRA), and initial measurements have indicated flow rates of 3,000-5,000 ft{sup 3} day{sup -1} (60-100 kg CH{sub 4} day{sup -1}). Gas samples collected in 1996 indicated biogenic origin, although more recent sampling indicated a mixture of biogenic and thermogenic gas. In this study, we (1) quantified the amount of CH{sub 4} generated by several seeps and evaluated their potential use as an unconventional gas source for the village of Atqasuk; (2) collected gas and analyzed its composition from multiple seeps several miles apart to see if the source is the same, or if gas is being generated locally from isolated biogenic sources; and (3) assessed the potential magnitude of natural CH{sub 4} gas seeps for future use …
Date:
December 31, 2008
Creator:
960443, See OSTI ID Number
Object Type:
Report
System:
The UNT Digital Library
Arctic Energy Technology Development Laboratory (Part 3)
Various laboratory tests were carried at the R & D facility of BJ Services in Tomball, TX with BJ Services staff to predict and evaluate the performance of the Ceramicrete slurry for its effective use in permafrost cementing operations. Although other standards such as those of the American Standard for Testing Materials (ASTM) and Construction Specification Institute (CSI) exist, all these tests were standardized by the API. A summary of the tests traditionally used in the cement slurry design as well as the API tests reference document are provided in Table 7. All of these tests were performed within the scope of this research to evaluate properties of the Ceramicrete.
Date:
December 31, 2008
Creator:
960443, See OSTI ID Number
Object Type:
Report
System:
The UNT Digital Library
Kahler Independence of the G2-MSSM
The G{sub 2}-MSSM is a model of particle physics coupled to moduli fields with interesting phenomenology both for colliders and astrophysical experiments. In this paper we consider a more general model--whose moduli Kahler potential is a completely arbitrary G{sub 2}-holonomy Kahler potential and whose matter Kahler potential is also more general. We prove that the vacuum structure and spectrum of BSM particles is largely unchanged in this much more general class of theories. In particular, gaugino masses are still suppressed relative to the gravitino mass and moduli masses. We also consider the effects of higher order corrections to the matter Kahler potential and find a connection between the nature of the LSP and flavor effects.
Date:
October 31, 2008
Creator:
Acharya, Bobby S. & Bobkov, Konstantin
Object Type:
Article
System:
The UNT Digital Library
Europe’s New Trade Agenda
This report summarizes the European Union's new initiative, casts the initiative in a historical perspective, and assesses the implications of this shift for the global trading system and for U.S. interests.
Date:
July 31, 2008
Creator:
Ahearn, Raymond J.
Object Type:
Report
System:
The UNT Digital Library
Globalization, Worker Insecurity, and Policy Approaches
This report discusses the global economy, or what many call globalization, which has a growing impact on the economic futures of American companies, workers, and families. Increasing integration with the world economy makes the U.S. and other economies more productive. For most Americans, this has translated into absolute increases in living standards and real disposable incomes.
Date:
July 31, 2008
Creator:
Ahearn, Raymond J.
Object Type:
Report
System:
The UNT Digital Library
Globalization, Worker Insecurity, and Policy Approaches
This report discusses the global economy, or what many call globalization, which has a growing impact on the economic futures of American companies, workers, and families. Increasing integration with the world economy makes the U.S. and other economies more productive. For most Americans, this has translated into absolute increases in living standards and real disposable incomes.
Date:
July 31, 2008
Creator:
Ahearn, Raymond J.
Object Type:
Report
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 5, Ed. 1 Thursday, January 31, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
January 31, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 26, No. 31, Ed. 1 Thursday, July 31, 2008
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
July 31, 2008
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Seca Coal-Based Systems Program
This report summarizes the progress made during the August 1, 2006 - May 31, 2008 award period under Cooperative Agreement DE-FC26-05NT42614 for the U. S. Department of Energy/National Energy Technology Laboratory (USDOE/NETL) entitled 'SECA Coal Based Systems'. The initial overall objective of this program was to design, develop, and demonstrate multi-MW integrated gasification fuel cell (IGFC) power plants with >50% overall efficiency from coal (HHV) to AC power. The focus of the program was to develop low-cost, high performance, modular solid oxide fuel cell (SOFC) technology to support coal gas IGFC power systems. After a detailed GE internal review of the SOFC technology, the program was de-scoped at GE's request. The primary objective of this program was then focused on developing a performance degradation mitigation path for high performing, cost-effective solid oxide fuel cells (SOFCs). There were two initial major objectives in this program. These were: (1) Develop and optimize a design of a >100 MWe integrated gasification fuel cell (IGFC) power plant; (2) Resolve identified barrier issues concerning the long-term economic performance of SOFC. The program focused on designing and cost estimating the IGFC system and resolving technical and economic barrier issues relating to SOFC. In doing so, manufacturing …
Date:
May 31, 2008
Creator:
Alinger, Matthew
Object Type:
Report
System:
The UNT Digital Library
Oral History Interview with P. T. Allison, July 31, 2008
The National Museum of the Pacific War presents an oral interview with P T Allison. Allison joined the Army in June 1942 and received basic training in Virginia, having spent three years in the Civilian Conservation Corps prior to enlisting. He was assigned to the 1470th Engineer Maintenance Company, where he procured parts for a group of mobile machine shops and welding shops. He arrived in France during the Battle of the Bulge, where his unit repaired tractors, chain saws, and anything else that was brought in. After V-E Day, he returned to the States and was preparing for deployment to the South Pacific when the atomic bombs were dropped. Allison was discharged and returned home; he and his wife spent the next 17 years as campground hosts for the National Park Service at Yellowstone.
Date:
July 31, 2008
Creator:
Allison, P. T.
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with P. T. Allison, July 31, 2008
The National Museum of the Pacific War presents an oral interview with P T Allison. Allison joined the Army in June 1942 and received basic training in Virginia, having spent three years in the Civilian Conservation Corps prior to enlisting. He was assigned to the 1470th Engineer Maintenance Company, where he procured parts for a group of mobile machine shops and welding shops. He arrived in France during the Battle of the Bulge, where his unit repaired tractors, chain saws, and anything else that was brought in. After V-E Day, he returned to the States and was preparing for deployment to the South Pacific when the atomic bombs were dropped. Allison was discharged and returned home; he and his wife spent the next 17 years as campground hosts for the National Park Service at Yellowstone.
Date:
July 31, 2008
Creator:
Allison, P. T.
Object Type:
Text
System:
The Portal to Texas History
Expanding Conventional Seismic Stratigrphy into the Multicomponent Seismic Domain
Multicomponent seismic data are composed of three independent vector-based seismic wave modes. These wave modes are, compressional mode (P), and shear modes SV and SH. The three modes are generated using three orthogonal source-displacement vectors and then recorded using three orthogonal vector sensors. The components travel through the earth at differing velocities and directions. The velocities of SH and SV as they travel through the subsurface differ by only a few percent, but the velocities of SV and SH (Vs) are appreciably lower than the P-wave velocity (Vp). The velocity ratio Vp/Vs varies by an order of magnitude in the earth from a value of 15 to 1.5 depending on the degree of sedimentary lithification. The data used in this study were acquired by nine-component (9C) vertical seismic profile (VSP), using three orthogonal vector sources. The 9C vertical seismic profile is capable of generating P-wave mode and the fundamental S-wave mode (SH-SH and SV-SV) directly at the source station and permits the basic components of elastic wavefield (P, SH-SH and SV-SV) to be separated from one another for the purposes of imaging. Analysis and interpretations of data from the study area show that incident full-elastic seismic wavefield is capable of …
Date:
August 31, 2008
Creator:
Aluka, Innocent J.
Object Type:
Report
System:
The UNT Digital Library
The First Day of a New Congress: A Guide to Proceedings on the House Floor
This report focuses on the floor activities of the House during its first formal session in a new Congress, and serves as a guide for those participating in or watching these proceedings.
Date:
October 31, 2008
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Major Leadership Election Contests in the House of Representatives, 94th-111th Congresses
This report contains data on votes for Speaker of the House for the 94th through 110th Congresses and elections in party conferences or caucuses for major leaders within each party for the 94th through 111th Congresses. It reflects actual balloting on the House floor for Speaker and in the Democratic Caucus and Republican Conference for other positions.
Date:
December 31, 2008
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Membership of the 111th Congress: A Profile
This report presents a profile of the membership of the 111th Congress. Statistical information is included on selected characteristics of Members, including data on party affiliation, average age and length of service, occupation, religious affiliation, gender, ethnicity, foreign births, and military service.
Date:
December 31, 2008
Creator:
Amer, Mildred
Object Type:
Report
System:
The UNT Digital Library
Abiotic Degradation Rates for Carbon Tetrachloride: and Chloroform: Progress in FY 2008
This is a letter report summarizing work performed in FY2008 to determine the rates of carbon tetrachloride hydrolysis at temperatures close to actual groundwater temperatures. The report describes the project, the methodology, and the results obtained since the project's inception in FY2006. Measurements of hydrolysis rates in homogeneous solution have been completed for temperaturs of 70 C through 40 C, with additional data available at 30 C and 20 C. These results show no difference between the rates in deionized H2O and in filter-sterilized Hanford-Site groundwater. Moreover, the rates measured are 2-3 times slower than predicted from the open literature. Measurements of rates involving sterile suspensions of Hanford-Site sediment in Hanford-Site groundwater, however, show faster hydrolysis at temperatures below 40 C. Extrapolation of the current data available suggests a six-fold increase in rate would be expected at groundwater temperature of 16 C due to the presence of the sediment. This result translates into a 78-year half-life, rather than the 470-680 year half-life that would be predicted from rate determinations in homogeneous solution. The hydrolysis rate data at 20 C, in contrast to those at higher temperatures, are preliminary and have low statistical power. While significant (p < 0.05) differences between …
Date:
October 31, 2008
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
Department of Defense Facilities Energy Conservation Policies and Spending
This report reviews energy conservation legislation and Executive Ordrs that apply to the Department of Defense, directives and instructions to the military departments and agencies on implementing the legislation and orders, Defense spending on facility energy over the last decade, annual Defense appropriations that fund energy-conservation improvements, and Defense energy conservation investments.
Date:
December 31, 2008
Creator:
Andrews, Anthony
Object Type:
Report
System:
The UNT Digital Library
Results Of The Excreta Bioassay Quality Control Program For April 1, 2007 Through March 31, 2008
A total of 79 urine samples, 3 blank fecal and 5 spiked artificial fecal samples were submitted during the report period (April 1, 2007 through March 31, 2008) to General Engineering Laboratories, South Carolina by the Hanford Internal Dosimetry Program (IDP) to check the accuracy, precision, and detection levels of their analyses. Urine analyses for tritium, Sr, 238Pu, 239Pu, 241Am, 243Am 235U, 238U, elemental uranium and fecal analyses for 241Am, 238Pu and 239Pu were tested this year. The number of QC urine samples submitted during the report period represented 1.8% of the total samples submitted. In addition to the samples provided by IDP, GEL was also required to conduct their own QC program, and submit the results of analyses to IDP. About 35% of the analyses processed by GEL during the third year of this contract were quality control samples. GEL tested the performance of 24 radioisotopes, all of which met or exceeded the specifications in the Statement of Work within statistical uncertainty (Table 4). IDP concluded that GEL was performing well for all analyses tested, and concerns identified earlier were satisfactorily resolved.
Date:
December 31, 2008
Creator:
Antonio, Cheryl L.
Object Type:
Report
System:
The UNT Digital Library
Advanced Building Efficiency Testbed Initiative/Intelligent Workplace Energy Supply System; ABETI/IWESS
ABETI/IWESS is a project carried out by Carnegie Mellon's Center for Building Performance and Diagnostics, the CBPD, supported by the U.S. Department of Energy/EERE, to design, procure, install, operate, and evaluate an energy supply system, an ESS, that will provide power, cooling, heating and ventilation for CBPD's Intelligent Workplace, the IW. The energy sources for this system, the IWESS, are solar radiation and bioDiesel fuel. The components of this overall system are: (1) a solar driven cooling and heating system for the IW comprising solar receivers, an absorption chiller, heat recovery exchanger, and circulation pump; (2) a bioDiesel fueled engine generator with heat recovery exchangers, one on the exhaust to provide steam and the other on the engine coolant to provide heated water; (3) a ventilation system including an enthalpy recovery wheel, an air based heat pump, an active desiccant wheel, and an air circulation fan; and (4) various convective and radiant cooling/heating units and ventilation air diffusers distributed throughout the IW. The goal of the ABETI/IWESS project is to demonstrate an energy supply system for a building space that will provide a healthy, comfortable environment for the occupants and that will reduce the quantity of energy consumed in the …
Date:
May 31, 2008
Creator:
Archer, David H.; Betz, Frederik; Gu, Yun; Li, Rong; Marion, Flore; Masson, Sophie et al.
Object Type:
Report
System:
The UNT Digital Library
Observation and Polarization of B->phiK1+ and phiK*2+
With the full BABAR data sample of 465 million B{bar B} pairs, they observe the decays B{sup {+-}} {yields} {psi}K{sub 1}(1270){sup {+-}} and B{sup {+-}} {yields} {psi}K*{sub 2}(1430){sup {+-}}. They measure the branching fractions (6.1 {+-} 1.6 {+-} 1.1) x 10{sup -6} and (8.4 {+-} 1.9 {+-} 0.9) x 10{sup -6} and the fractions of longitudinal polarization 0.46{sub -0.13-0.07}{sup +0.12+0.03} and 0.80{sub -0.10}{sup +0.09} {+-} 0.03, respectively. They also report on the B{sup {+-}} {yields} {psi}K*{sub 0}(1430){sup {+-}} decay branching fraction of (7.0 {+-} 1.3 {+-} 0.9) x 10{sup -6} and several parameters sensitive to CP violation and interference in the above three decays. Upper limits are placed on the B{sup {+-}} decay rates to final states with {psi} and K{sub 1}(1400){sup {+-}}, K*(1410){sup {+-}}, K{sub 2}(1770){sup {+-}}, or K{sub 2}(1820){sup {+-}}. Understanding the observed polarization pattern requires amplitude contributions from an uncertain source.
Date:
October 31, 2008
Creator:
Aubert, B.; Bona, M.; Karyotakis, Y.; Lees, J. P.; Poireau, V.; Prencipe, E. et al.
Object Type:
Article
System:
The UNT Digital Library
Zeaxanthin Radical Cation Formation in Minor Light-Harvesting Complexes of Higher Plant Antenna
Previous work on intact thylakoid membranes showed that transient formation of a zeaxanthin radical cation was correlated with regulation of photosynthetic light-harvesting via energy-dependent quenching. A molecular mechanism for such quenching was proposed to involve charge transfer within a chlorophyll-zeaxanthin heterodimer. Using near infrared (880-1100 nm) transient absorption spectroscopy, we demonstrate that carotenoid (mainly zeaxanthin) radical cation generation occurs solely in isolated minor light-harvesting complexes that bind zeaxanthin, consistent with the engagement of charge transfer quenching therein. We estimated that less than 0.5percent of the isolated minor complexes undergo charge transfer quenching in vitro, whereas the fraction of minor complexes estimated to be engaged in charge transfer quenching in isolated thylakoids was more than 80 times higher. We conclude that minor complexes which bind zeaxanthin are sites of charge transfer quenching in vivo and that they can assume Non-quenching and Quenching conformations, the equilibrium LHC(N)<--> LHC(Q) of which is modulated by the transthylakoid pH gradient, the PsbS protein, and protein-protein interactions.
Date:
January 31, 2008
Creator:
Avenson, Thomas H.; Ahn, Tae Kyu; Zigmantas, Donatas; Niyogi, Krishna K.; Li, Zhirong; Ballottari, Matteo et al.
Object Type:
Article
System:
The UNT Digital Library
The Disparity Between Retail Gasoline and Diesel Fuel Prices
This report provides a brief overview of the differentiating retail gasoline and diesel fuel prices, including the factors influencing the differences.
Date:
March 31, 2008
Creator:
Bamberger, Robert L. & Pirog, Robert
Object Type:
Report
System:
The UNT Digital Library
Arctic Energy Technology Development Laboratory
The Arctic Energy Technology Development Laboratory was created by the University of Alaska Fairbanks in response to a congressionally mandated funding opportunity through the U.S. Department of Energy (DOE), specifically to encourage research partnerships between the university, the Alaskan energy industry, and the DOE. The enabling legislation permitted research in a broad variety of topics particularly of interest to Alaska, including providing more efficient and economical electrical power generation in rural villages, as well as research in coal, oil, and gas. The contract was managed as a cooperative research agreement, with active project monitoring and management from the DOE. In the eight years of this partnership, approximately 30 projects were funded and completed. These projects, which were selected using an industry panel of Alaskan energy industry engineers and managers, cover a wide range of topics, such as diesel engine efficiency, fuel cells, coal combustion, methane gas hydrates, heavy oil recovery, and water issues associated with ice road construction in the oil fields of the North Slope. Each project was managed as a separate DOE contract, and the final technical report for each completed project is included with this final report. The intent of this process was to address the energy …
Date:
December 31, 2008
Creator:
Bandopadhyay, Sukumar; Chamberlin, Charles; Chaney, Robert; Chen, Gang; Chukwu, Godwin; Clough, James et al.
Object Type:
Report
System:
The UNT Digital Library
MEASUREMENT AND CALCULATION OF RADIONUCLIDE ACTIVITIES IN SAVANNAH RIVER SITE HIGH LEVEL WASTE SLUDGE FOR ACCEPTANCE OF DEFENSE WASTE PROCESSING FACILITY GLASS IN A FEDERAL REPOSITORY
This paper describes the results of the analyses of High Level Waste (HLW) sludge slurry samples and of the calculations necessary to decay the radionuclides to meet the reporting requirement in the Waste Acceptance Product Specifications (WAPS) [1]. The concentrations of 45 radionuclides were measured. The results of these analyses provide input for radioactive decay calculations used to project the radionuclide inventory at the specified index years, 2015 and 3115. This information is necessary to complete the Production Records at Savannah River Site's Defense Waste Processing Facility (DWPF) so that the final glass product resulting from Macrobatch 5 (MB5) can eventually be submitted to a Federal Repository. Five of the necessary input radionuclides for the decay calculations could not be measured directly due to their low concentrations and/or analytical interferences. These isotopes are Nb-93m, Pd-107, Cd-113m, Cs-135, and Cm-248. Methods for calculating these species from concentrations of appropriate other radionuclides will be discussed. Also the average age of the MB5 HLW had to be calculated from decay of Sr-90 in order to predict the initial concentration of Nb-93m. As a result of the measurements and calculations, thirty-one WAPS reportable radioactive isotopes were identified for MB5. The total activity of MB5 …
Date:
December 31, 2008
Creator:
Bannochie, C; David Diprete, D & Ned Bibler, N
Object Type:
Article
System:
The UNT Digital Library