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Adsorption of Pb(II) and Eu(III) by Oxide Minerals in the Presence of Natural and Synthetic Hydroxamate Siderophores
OAK-B135 Results of laboratory experiments on the removal of europium and lead from the mineral, goethite, by hydroxamate siderophores are presented.
Date:
December 18, 2003
Creator:
Sposito, G.
Object Type:
Article
System:
The UNT Digital Library
The Albany News (Albany, Tex.), Vol. 128, No. 29, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Albany, Texas that includes local, county, and state news along with extensive advertising.
Date:
December 18, 2003
Creator:
Lucas, Melinda L.
Object Type:
Newspaper
System:
The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 105, No. 236, Ed. 1 Thursday, December 18, 2003
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Annual Energy Consumption Analysis Report for Richland Middle School
Richland Middle School is a single story, 90,000 square feet new school located in Richland, WA. The design team proposed four HVAC system options to serve the building. The proposed HVAC systems are listed as following: (1) 4-pipe fan coil units served by electrical chiller and gas-fired boilers, (2) Ground-source closed water loop heat pumps with water loop heat pumps with boiler and cooling tower, and (3) VAV system served by electrical chiller and gas-fired boiler. This analysis estimates the annual energy consumptions and costs of each system option, in order to provide the design team with a reasonable basis for determining which system is most life-cycle cost effective. eQuest (version 3.37), a computer-based energy simulation program that uses the DOE-2 simulation engine, was used to estimate the annual energy costs.
Date:
December 18, 2003
Creator:
Liu, Bing
Object Type:
Report
System:
The UNT Digital Library
Apples with apples: accounting for fuel price risk in comparisons of gas-fired and renewable generation
For better or worse, natural gas has become the fuel of choice for new power plants being built across the United States. According to the US Energy Information Administration (EIA), natural gas combined-cycle and combustion turbine power plants accounted for 96% of the total generating capacity added in the US between 1999 and 2002--138 GW out of a total of 144 GW. Looking ahead, the EIA expects that gas-fired technology will account for 61% of the 355 GW new generating capacity projected to come on-line in the US up to 2025, increasing the nationwide market share of gas-fired generation from 18% in 2002 to 22% in 2025. While the data are specific to the US, natural gas-fired generation is making similar advances in other countries as well. Regardless of the explanation for (or interpretation of) the empirical findings, however, the basic implications remain the same: one should not blindly rely on gas price forecasts when comparing fixed-price renewable with variable-price gas-fired generation contracts. If there is a cost to hedging, gas price forecasts do not capture and account for it. Alternatively, if the forecasts are at risk of being biased or out of tune with the market, then one certainly …
Date:
December 18, 2003
Creator:
Bolinger, Mark & Wiser, Ryan
Object Type:
Article
System:
The UNT Digital Library
Archer County News (Archer City, Tex.), No. 51, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Archer City, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Lewis, Shelley
Object Type:
Newspaper
System:
The Portal to Texas History
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 381, Ed. 1 Thursday, December 18, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Canadian Record (Canadian, Tex.), Vol. 113, No. 51, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.
Date:
December 18, 2003
Creator:
Brown, Laurie Ezzell
Object Type:
Newspaper
System:
The Portal to Texas History
CDF Run IIb Silicon Vertex Detector DAQ Upgrade
The CDF particle detector operates in the beamline of the Tevatron proton-antiproton collider at Fermilab, Batavia, IL. The Tevatron is expected to undergo luminosity upgrades (Run IIb) in the future, resulting in a higher number of interactions per beam crossing. To operate in this dense radiation environment, an upgrade of CDF's silicon vertex detector (SVX) subsystem and a corresponding upgrade of its VME-based DAQ system has been explored. Prototypes of all the Run IIb SVX DAQ components have been constructed, assembled into a test stand and operated successfully using an adapted version of CDF's network-capable DAQ software. In addition, a PCI-based DAQ system has been developed as a fast and inexpensive tool for silicon detector and DAQ component testing in the production phase. In this paper they present an overview of the Run IIb silicon DAQ upgrade, emphasizing the new features and improvements incorporated into the constituent VME boards, and discuss a PCI-based DAQ system developed to facilitate production tests.
Date:
December 18, 2003
Creator:
al., S. Behari et
Object Type:
Article
System:
The UNT Digital Library
Comanche Chief (Comanche, Tex.), No. 33, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Wilkerson, James C., III
Object Type:
Newspaper
System:
The Portal to Texas History
Comments on the operation of the RHIC CNI polarimeters.
The RHIC polarimeter data have exhibited behavior suggesting that systematic effects are present at a level comparable to the statistical uncertainty per run, or {approx} 4 x 10{sup 4}: in the physics asymmetries and somewhat larger in the luminosity asymmetries. This corresponds to an error in the polarization of approximately {delta}P {approx} {+-} 0.03. Two effects are studied that might explain some of the observations, both based on detector rates. The results may explain the systematic effects in both the physics and the luminosity asymmetries. The first effect is caused by the presence of both a background and a good p + C elastic scattering event in the same passage of a bunch through the polarimeter target. The second effect similarly depends on the presence of multiple p + C elastic events from the same bunch. If these rate effects become large enough (or if {delta}P {approx} {+-} 0.03 continues and the beam polarization is less than 0.60) they could prevent determination of the beam polarization to {delta}P/P = {+-} 5% unless a correction can be determined to the measured asymmetries.
Date:
December 18, 2003
Creator:
Spinka, H.
Object Type:
Report
System:
The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 123, No. 51, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Pinson, Beth
Object Type:
Newspaper
System:
The Portal to Texas History
Copyright Law: Digital Rights Management Legislation
Digital Rights Management (DRM) refers to the technology that copyright owners use to protect digital media. This report surveys several of the DRM bills that were introduced in the 107th Congress and those that are pending in the 108th Congress. Generally, the bills are directed at two separate goals. One goal is to increase access to digitally-protected media for lawful purposes. The other attempts to thwart digital piracy and would do so by enhancing civil and criminal sanctions for digital copyright infringement and educating the public about the rights of copyright holders.
Date:
December 18, 2003
Creator:
Jeweler, Robin
Object Type:
Report
System:
The UNT Digital Library
Defense Logistics: Preliminary Observations on the Effectiveness of Logistics Activities During Operation Iraqi Freedom
Correspondence issued by the General Accounting Office with an abstract that begins "Operation Iraqi Freedom (OIF) is one of the largest logistics supply and support efforts that the U.S. military has ever undertaken. For example, of the $28.1 billion that the Department of Defense (DOD) has obligated for OIF, the services and the Defense Logistics Agency have reported that $14.2 billion is for operating support costs and $4.9 billion is for transportation costs. This operation required the movement of large numbers of personnel and equipment over long distances into a hostile environment involving harsh desert conditions. Congress asked us to study a number of issues related to logistics support to deployed forces. In April 2003, shortly after the onset of OIF, we began work that focused on DOD's accountability and control over supplies and equipment shipped to that theater of operation. Based on the early results of this work, we subsequently broadened our scope to include other logistical issues, such as the deployment of support units and the transportation of supplies and equipment."
Date:
December 18, 2003
Creator:
United States. General Accounting Office.
Object Type:
Text
System:
The UNT Digital Library
Diffractive physics results at CDF
Forward detectors are described together with the first physics results from Run II. Using new data and dedicated diffractive triggers, a measurement of single diffractive dijet production rate, with particular focus on the diffractive structure function of the antiproton, is discussed. Upper limits on the exclusive dijet and {chi}{sub c}{sup 0} production cross sections are also presented.
Date:
December 18, 2003
Creator:
Gallinaro, Michele
Object Type:
Article
System:
The UNT Digital Library
The Dublin Citizen (Dublin, Tex.), Vol. 14, No. 16, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Electra Star-News (Electra, Tex.), Vol. 98, No. 17, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Evaluation of Fire Hazards While Repackaging Plutonium-Contaminated Scrap in Hb-Line
The potential for a fire while repackaging plutonium-contaminated scrap was evaluated. The surface-to-mass ratio indicates the metal alone will not spontaneously ignite. Uranium hydride can form when uranium metal is exposed to water vapor or hydrogen; uranium hydride reacts rapidly and energetically with atmospheric oxygen. The plutonium-contaminated scrap has been inside containers qualified for shipping, and these containers are leak-tight. The rate of diffusion of water vapor through the seals is small, and the radiolytic hydrogen generation rate is low. Radiography of samples of the storage containers indicates no loose oxide/hydride powder has collected in the storage container to date. The frequently of a fire while repackaging the plutonium-contaminated scrap is extremely unlikely.
Date:
December 18, 2003
Creator:
Hallman, D.
Object Type:
Report
System:
The UNT Digital Library
Evaluation of longitudinal emittance growth caused by negative mass instability in proton synchrotrons
The theory of negative mass instability (NMI) in proton synchrotrons has been regarded as established for about thirty years, but both accurate calculations and solid beam observations for real cases have been difficult and practically non-existent. The wider availability of so-called computing farms has made credible macroparticle simulations practical for routine use. The comparison of a macroparticle model with the existing theory indicates interesting discrepancies, although the theoretical threshold is confirmed. That comparison and code validation for the model are discussed in the context of useful specific cases. The importance of perturbations other than statistical fluctuation as the seed of instability is considered.
Date:
December 18, 2003
Creator:
MacLachlan, James A.
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, December 18, 2003
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Final Technical Report
OAK-B135 This study took place at the Nevada Desert FACE (Free Air CO2 Enrichment) Facility at the Nevada Test Site, where effects of elevated atmospheric CO2 on a desert ecosystem are being studied. One hundred sixty-eight minirhizotrons (clear plastic tubes) were installed to a depth of 1m in the soil in the control and elevated CO2 plots. Tubes were installed from a suspended platform to avoid soil compaction and disturbance. Tubes were placed under individuals of two dominant shrub species, Larrea tridentata and Ambrosia dumosa, and along systematic transects across the plots. Specialized video cameras were inserted down the tubes at 4 week intervals to provide images of plant root systems on the upper side of the tube. A ratcheting mechanism assured consistent imaging of the same precise locations during each sampling period. Images were collected every 4 weeks from December 1997 to January 2001, after which the images were too degraded from repeated camera abrasion on the tubes for adequate analysis. Over 100,000 video images were analyzed and the appearance, growth, and disappearance of 23,634 individual fine roots (<2 mm diameter) were tracked over time, totaling 125,679 root observations and measurements. Elevated CO2 did not have an effect on …
Date:
December 18, 2003
Creator:
Phillips, Donald L.; Johnson, Mark G. & Tingey, David T.
Object Type:
Report
System:
The UNT Digital Library
Final Technical Report: Dissolution of Fe(III)(hydr)Oxides by Aerobic Microorganisms
OAK-B135 The objectives and principal results of the University of California at Berkeley portion of a collaborative research project to investigate the geochemistry of trihydroxamate siderophores are summarized.
Date:
December 18, 2003
Creator:
Sposito, G.
Object Type:
Report
System:
The UNT Digital Library
Fluid Dynamics of Carbon Dioxide Disposal into Saline Aquifers
Injection of carbon dioxide (CO{sub 2}) into saline aquifers has been proposed as a means to reduce greenhouse gas emissions (geological carbon sequestration). Large-scale injection of CO{sub 2} will induce a variety of coupled physical and chemical processes, including multiphase fluid flow, fluid pressurization and changes in effective stress, solute transport, and chemical reactions between fluids and formation minerals. This work addresses some of these issues with special emphasis given to the physics of fluid flow in brine formations. An investigation of the thermophysical properties of pure carbon dioxide, water and aqueous solutions of CO{sub 2} and NaCl has been conducted. As a result, accurate representations and models for predicting the overall thermophysical behavior of the system CO{sub 2}-H{sub 2}O-NaCl are proposed and incorporated into the numerical simulator TOUGH2/ECO{sub 2}. The basic problem of CO{sub 2} injection into a radially symmetric brine aquifer is used to validate the results of TOUGH2/ECO2. The numerical simulator has been applied to more complex flow problem including the CO{sub 2} injection project at the Sleipner Vest Field in the Norwegian sector of the North Sea and the evaluation of fluid flow dynamics effects of CO{sub 2} injection into aquifers. Numerical simulation results show that …
Date:
December 18, 2003
Creator:
Garcia, Julio Enrique
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Garber Billings News (Garber, Okla.), Vol. 104, No. 9, Ed. 1 Thursday, December 18, 2003
Weekly newspaper from Garber, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 18, 2003
Creator:
Hogan, Vickie Lee
Object Type:
Newspaper
System:
The Gateway to Oklahoma History