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247
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Preliminary simulations of planned experiments to study the impact of trace gases on the capacity of the Weyburn-Midale field to store carbon dioxide
The CO{sub 2} stream injecting into the Weyburn-Midale field can be generally classified as a reducing stream with residual H{sub 2}S and low-molecular weight hydrocarbons. The composition of the CO{sub 2} gas stream from the Dakota Gasification Company is reported to be 95% CO{sub 2}, 4% hydrocarbons, and 1% H{sub 2}S by volume (Huxley 2006). In addition to the H{sub 2}S introduced at the injection wells, significant concentrations of H{sub 2}S are thought to have been produced in-situ by sulfate reducing bacteria from previous water floods for enhanced oil production. Produced gas compositions range in H{sub 2}S concentrations from 1 to 6 volume percent. The produced gas, including the trace impurities, is re-injected into the field. Although there is no evidence for inorganic reduction of SO{sub 4}{sup 2-} to H{sub 2}S at the Weyburn-Midale field, Sitchler and Kazuba (2009) suggest that SO{sub 4}{sup 2-} can be inorganically reduced to elemental sulfur in highly reducing environments based on a natural analog study of the Madison Formation in Wyoming. They propose that elevated concentrations of CO{sub 2} dissolve anhydrite to produce the sulfate that is then reduced. Oxidizing CO{sub 2} streams with residual O{sub 2} and SO{sub 2} typical of streams captured …
Date:
November 13, 2009
Creator:
Carroll, S & Hao, Y
Object Type:
Report
System:
The UNT Digital Library
Program for the Inspection of Nickel Alloy Components Report from the Program’s Steering Committee: Inspection of Bottom-Mounted Instrumentation Nozzles Round Robin
The U.S. Nuclear Regulatory Commission (NRC) executed agreements with organizations in Japan, Sweden, South Korea, Finland, and the United States to establish the Program for the Inspection of Nickel Alloy Components (PINC).
Date:
November 13, 2009
Creator:
Cumblidge, Stephen E.; Heasler, Patrick G.; Doctor, Steven R. & Taylor, Theodore T.
Object Type:
Report
System:
The UNT Digital Library
RESULTS FOR THE THIRD QUARTER 2009 TANK 50 WAC SLURRY SAMPLE: CHEMICAL AND RADIONUCLIDE CONTAMINANT RESULTS
This report details the chemical and radionuclide contaminant results for the characterization of the 2009 Third Quarter sampling of Tank 50 for the Saltstone Waste Acceptance Criteria (WAC). Information from this characterization will be used by Liquid Waste Operations (LWO) to support the transfer of low-level aqueous waste from Tank 50 to the Salt Feed Tank in the Saltstone Facility in Z-Area, where the waste will be immobilized. This information is also used to update the Tank 50 Waste Characterization System. Recently, a review of the radionuclide inventory in Saltstone Vaults 1 and 4 identified several additional radionuclides, not currently in the WAC, which require quantification ({sup 40}K, {sup 108m}Ag, {sup 133}Ba, {sup 207}Bi, {sup 227}Ac, {sup 228}Ra, {sup 228}Th, {sup 231}Pa, {sup 247}Cm, {sup 249}Cf, {sup 251}Cf). In addition, several of the radionuclides previously reported with minimum detection limits below the requirements listed in the WAC required analysis with reduced detection limits to support future inventory reporting requirements ({sup 22}Na, {sup 26}Al, {sup 59}Ni, {sup 94}Nb, {sup 106}Ru, {sup 144}Ce, {sup 152}Eu, {sup 155}Eu, {sup 226}Ra). This added scope was formally requested in a revision to the standing Technical Task Request for CY2009 Saltstone support and is further discussed …
Date:
November 13, 2009
Creator:
Reigel, M.; Diprete, C. & Bibler, N.
Object Type:
Report
System:
The UNT Digital Library
Sea-Based Ballistic Missile Defense-- Background and Issues for Congress
This report discusses the changing role and finance of sea-based systems in U.S. ballistic missile defense (BMD). Decisions that Congress reaches on this issue could affect U.S. BMD capabilities and funding requirements; the size, capabilities, and operational patterns of the Navy and the other services; and the shipbuilding industrial base.
Date:
November 13, 2009
Creator:
O'Rourke, Ronald
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 34, Number 46, Pages 7925-8080, November 13, 2009
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
November 13, 2009
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
U.S. Marshals: Qualifications and Comparison of Demographic Characteristics to Their Counterparts in Selected Federal Law Enforcement Agencies
Correspondence issued by the Government Accountability Office with an abstract that begins "Federal law does not mandate specific qualifications for individuals appointed as U.S. Marshals. However, Section 505 of the USA PATRIOT Improvement and Reauthorization Act of 2005 states that U.S. Marshals should possess certain minimum characteristics in order to serve. The suggested characteristics are (1) a minimum of 4 years of command-level law enforcement management duties, including personnel, budget, and accountable property issues, in a police department, sheriff's office, or federal law enforcement agency; (2) experience in coordinating with other law enforcement agencies, particularly at the state and local levels; (3) college-level academic experience; and (4) experience in or with county, state, and federal court systems or experience with protection of court personnel, jurors, and witnesses. In contrast to the appointment process for U.S. Marshals, the senior field supervisors of other federal law enforcement agencies with comparable duties and responsibilities are selected under competitive, merit-based promotion criteria outlined in Title 5 of the U.S. Code. These individuals are required to apply and compete for these positions and meet any identified minimum standards. Minimum qualifications used to select senior field supervisors at some of the federal law enforcement agencies vary, …
Date:
November 13, 2009
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library
U.S. Trade Deficit and the Impact of Changing Oil Prices
This report provides an estimate of the initial impact of the changing oil prices on the nation's merchandise trade balance.
Date:
November 13, 2009
Creator:
Jackson, James K.
Object Type:
Report
System:
The UNT Digital Library
U.S. Trade Deficit and the Impact of Changing Oil Prices
None
Date:
November 13, 2009
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Upper Limits on the Number of Small Bodies in Sedna-Like Orbits by the TAOS Project
We present the results of a search for occultation events by objects at distances between 100 and 1000 AU in lightcurves from the Taiwanese-American Occultation Survey (TAOS). We searched for consecutive, shallow flux reductions in the stellar lightcurves obtained by our survey between 7 February 2005 and 31 December 2006 with a total of {approx} 4.5 x 10{sup 9} three-telescope simultaneous photometric measurements. No events were detected, allowing us to set upper limits on the number density as a function of size and distance of objects in Sedna-like orbits, using simple models.
Date:
November 13, 2009
Creator:
Wang, J.; Lehner, M. J.; Zhang, Z.; Bianco, F. B.; Alcock, C.; Chen, W. et al.
Object Type:
Article
System:
The UNT Digital Library
Final Technical Report for USDOE Grant No. DE-FG02-96ER14675 Supermolecular Photosynthetic Arrays: Construction, Characterization, Exploration and Utilization
Biological processes provide paradigms for the development of solar energy devices of practical utility. In nature, the light harvesting -complexes (LHCs) are not chemically active. However, with unnatural chemical oxidation by potassium ferricyanide, cation free radicals of bacteriochlorophyll (BChl) can be formed in the light harvesting complex 1 (LH1) of Rhodobacter sphaeroides. Based on EPR studies, the site of the BChl{sup +} cations move rather freely about the LH1 complex as in a molecular wire. These molecular wires function in the frozen, solid state. This work seeks to understand better how nature controls electron transfer in some of its molecular wires. To investigate the nature of electron-hole transfer we have e.onducted both electron paramagnetic resonance (EPR) and electron nuclear double resonance (ENDOR) experiments on oxidized LH1 complexes. Progress has been achieved in two main areas: EPR studies of the role of ferricyanide in the molecular wire nature of oxidized LH1; and ENDOR studies of oxidized LH1 at 80K.
Date:
December 13, 2009
Creator:
Norris, James
Object Type:
Report
System:
The UNT Digital Library
The Full Function Test Explosive Generator
We have conducted three tests of a new pulsed power device called the Full Function Test (FFT). These tests represented the culmination of an effort to establish a high energy pulsed power capability based on high explosive pulsed power (HEPP) technology. This involved an extensive computational modeling, engineering, fabrication, and fielding effort. The experiments were highly successful and a new US record for magnetic energy was obtained.
Date:
December 13, 2009
Creator:
Reisman, D. B.; Javedani, J. B.; Griffith, L. V.; Ellsworth, G. F.; Kuklo, R. M.; Goerz, D. A. et al.
Object Type:
Article
System:
The UNT Digital Library