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QUANTITATIVE ANALYSES OF THE SEVERITY OF ATTACK ON CREVICE CORROSION SURFACES
None
Date:
December 19, 2005
Creator:
/a, n
Object Type:
Article
System:
The UNT Digital Library
Timpson & Tenaha News (Timpson, Tex.), Vol. 20, No. 19, Ed. 1 Thursday, May 19, 2005
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
May 19, 2005
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
Environmentally Assisted Cracking in Light Water Reactors : Annual Report, January-December 2003.
None
Date:
August 19, 2005
Creator:
Alexandreanu, B.; Chopra, O. K.; Chung, H. M.; Gruber, E. E. & Shack, W.J.
Object Type:
Report
System:
The UNT Digital Library
Waste Package Corrosion Studies Using Small Mockup Experiments
The corrosion of spent nuclear fuel and subsequent mobilization of radionuclides is of great concern in a geologic repository, particularly if conditions are oxidizing. Corroding A516 steel may offset these transport processes within the proposed waste packages at the Yucca Mountain Repository (YMR) by retaining radionuclides, creating locally reducing conditions, and reducing porosity. Ferrous iron, Fe{sup 2+}, has been shown to reduce UO{sub 2}{sup 2+} to UO{sub 2(s)} [1], and some ferrous iron-bearing ion-exchange materials adsorb radionuclides and heavy metals [2]. Of particular interest is magnetite, a potential corrosion product that has been shown to remove TcO{sub 4}{sup -} from solution [3]. Furthermore, if Fe{sup 2+} minerals, rather than fully oxidized minerals such as goethite, are produced during corrosion, then locally reducing conditions may be present. High electron availability leads to the reduction and subsequent immobilization of problematic dissolved species such as TcO{sub 4}{sup -}, NpO{sub 2}{sup +}, and UO{sub 2}{sup 2+} and can also inhibit corrosion of spent nuclear fuel. Finally, because the molar volume of iron material increases during corrosion due to oxygen and water incorporation, pore space may be significantly reduced over long time periods. The more water is occluded, the bulkier the corrosion products, and the …
Date:
October 19, 2005
Creator:
Anderson, B. E.; Helean, K. B.; Bryan, C. R.; Brady, P. V. & Ewing, R. C.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 244, Ed. 1 Wednesday, January 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 16, Ed. 1 Tuesday, April 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
April 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 42, Ed. 1 Thursday, May 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 66, Ed. 1 Sunday, June 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 92, Ed. 1 Tuesday, July 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
July 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 119, Ed. 1 Friday, August 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Altus Times (Altus, Okla.), Vol. 107, No. 145, Ed. 1 Monday, September 19, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 2005
Creator:
Andrews, Mike
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Polymer OLED White Light Development Program
OSRAM Opto Semiconductors (OSRAM) successfully completed development, fabrication and characterization of the large area, polymer based white light OLED prototype at their OLED Research and Development (R&D) facility in San Jose, CA. The program, funded by the Department of Energy (DOE), consisted of three key objectives: (1) Develop new polymer materials and device architectures--in order to improve the performance of organic light emitters. (2) Develop processing techniques--in order to demonstrate and enable the manufacturing of large area, white light and color tunable, solid state light sources. (3) Develop new electronics and driving schemes for organic light sources, including color-tunable light sources. The key performance goals are listed. A world record efficiency of 25 lm/W was established for the solution processed white organic device from the significant improvements made during the project. However, the challenges to transfer this technology from an R&D level to a large tile format such as, the robustness of the device and the coating uniformity of large area panels, remain. In this regard, the purity and the blend nature of the materials are two factors that need to be addressed in future work. During the first year, OSRAM's Materials and Device group (M&D) worked closely with the …
Date:
December 19, 2005
Creator:
Antoniadis, Homer; Choong, Vi-En; Choulis, Stelios; Cumpston, Brian; Gupta, Rahul; Mathai, Mathew et al.
Object Type:
Report
System:
The UNT Digital Library
Northern Ireland: The Peace Process
For years, the British and Irish governments sought to facilitate a peaceful settlement to the conflict in Northern Ireland. After many ups and downs, the two governments and the eight parties participating in peace talks announced an agreement on April 10, 1998. However, the implementation of the resulting Good Friday The agreement continues to be difficult. This report will be updated as events warrant.
Date:
May 19, 2005
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
U.S.-EU Cooperation Against Terrorism
None
Date:
January 19, 2005
Creator:
Archick, Kristin
Object Type:
Report
System:
The UNT Digital Library
Flow Through PCR Module of BioBriefcase
The BioBriefcase is an integrated briefcase-sized aerosol collection and analysis system for autonomous monitoring of the environment, which is currently being jointly developed by Lawrence Livermore and Sandia National Laboratories. This poster presents results from the polymerase chain reaction (PCR) module of the system. The DNA must be purified after exiting the aerosol collector to prevent inhibition of the enzymatic reaction. Traditional solid-phase extraction results in a large loss of sample. In this flow-through system, we perform sample purification, concentration and amplification in one reactor, which minimizes the loss of material. The sample from the aerosol collector is mixed with a denaturation solution prior to flowing through a capillary packed with silica beads. The DNA adheres to the silica beads allowing the environmental contaminants to be flushed to waste while effectively concentrating the DNA on the silica matrix. The adhered DNA is amplified while on the surface of the silica beads, resulting in a lower limit of detection than an equivalent eluted sample. Thus, this system is beneficial since more DNA is available for amplification, less reagents are utilized, and contamination risks are reduced.
Date:
September 19, 2005
Creator:
Arroyo, E. S.; Wheeler, E. K.; Hindson, B.; Nasarabadi, S.; Vrankovich, G.; Bell, P. et al.
Object Type:
Article
System:
The UNT Digital Library
Search for the Rare Quark-annihilation Decays B->Ds(*)Phi
We report on searches for B{sup -} {yields} D{sub s}{sup -} {phi} and B{sup -} {yields} D*{sub s}{sup -} {phi}. In the context of the Standard Model, these decays are expected to be highly suppressed since they proceed through annihilation of the b and {bar u} quarks in the B{sup -} meson. Our results are based on 234 million {Upsilon}(4S) {yields} B{bar B} decays collected with the BABAR detector at SLAC. We find no evidence for these decays, and we set Bayesian 90% confidence level upper limits on the branching fractions {Beta}(B{sup -} {yields} D{sub s}{sup -}{phi}) < 1.9 x 10{sup -6} and {Beta}(B{sup -} {yields} D*{sub s}{sup -} {phi}) < 1.2 x 10{sup -5}. These results are consistent with Standard Model expectations.
Date:
December 19, 2005
Creator:
Aubert, B.; Barate, R.; Boutigny, D.; Couderc, F.; Karyotakis, Y.; Lees, J. P. et al.
Object Type:
Article
System:
The UNT Digital Library
Science & Technology Review November 2005
This month's issue has the following articles: (1) A Major Advance in Understanding Metals--Commentary by Tomas Diaz de la Rubia; (2) Materials Scientists Discover the Power of ParaDiS--A new supercomputer code is revealing how metals become stronger through the formation of dislocation line junctions; (3) A Wide New Window on the Universe--Livermore scientists and engineers are contributing to the Large Synoptic Survey Telescope, which will provide unprecedented digital maps of the changing night sky; (4) Built for Speed: Graphics Processors for General-Purpose Computing--Commercial graphics processors used in the computer gaming industry are providing low-cost solutions for high-performance data processing; and (5) Negative Plasma Densities Raise Questions--Livermore physicists shed light on anomalous results in x-ray interferometry of plasmas.
Date:
September 19, 2005
Creator:
Aufderheide, M B
Object Type:
Report
System:
The UNT Digital Library
Science & Technology Review September 2005
This month's issue has the following articles: (1) The Pursuit of Fusion Energy--Commentary by William H. Goldstein; (2) A Dynamo of a Plasma--The self-organizing magnetized plasmas in a Livermore fusion energy experiment are akin to solar flares and galactic jets; (3) How One Equation Changed the World--A three-page paper by Albert Einstein revolutionized physics by linking mass and energy; (4) Recycled Equations Help Verify Livermore Codes--New analytic solutions for imploding spherical shells give scientists additional tools for verifying codes; and (5) Dust That.s Worth Keeping--Scientists have solved the mystery of an astronomical spectral feature in interplanetary dust particles.
Date:
July 19, 2005
Creator:
Aufderheide, M. B., III
Object Type:
Report
System:
The UNT Digital Library
Overview of NEPA Requirements
This report provides an overview of The National Environmental Policy Act (NEPA) requirements. NEPA establishes national environmental policies that apply to the federal government and also prescribes certain procedural requirements for federal agency actions.
Date:
April 19, 2005
Creator:
Baldwin, Pamela
Object Type:
Report
System:
The UNT Digital Library
Automobile and Light Truck Fuel Economy: The CAFE Standards
This report is categorized into five categories: (I) Most Recent Developments, (II) Background and Analysis, (III) Improving Fuel Economy: Other Policy Approaches, (IV) Legislation and (V) Congressional Hearing, Reports, and Documents.
Date:
September 19, 2005
Creator:
Bamberger, Robert
Object Type:
Report
System:
The UNT Digital Library
Bunch Length Measurements at the ATF Damping Ring in April 2000
We want to accurately know the energy spread and bunch length dependence on current in the ATF damping ring. One reason is to know the strength of the impedance: From the energy spread measurements we know whether or not we are above the threshold to the microwave instability, and from the energy spread and bunch length measurements we find out the extent of potential-well bunch lengthening (PWBL). Another reason for these measurements is to help in our understanding of the intra-beam scattering (IBS) effect in the ATF. The ATF as it is now, running below design energy and with the wigglers turned off, is strongly affected by IBS. To check for consistency with IBS theory of, for example, the measured vertical beam size, we need to know all dimensions of the beam, including the longitudinal one. But beyond this practical reason for studying IBS, IBS is currently a hot research topic at many accelerators around the world (see e.g. Ref. [1]), and the effect in actual machines is not well understood. Typically, when comparing theory with measurements fudge factors are needed to get agreement (see e.g. Ref. [1]). With its strong IBS effect, the ATF is an ideal machine for …
Date:
December 19, 2005
Creator:
Bane, K. L. F.; Naito, T.; Okugi, T. & Urakawa, J.
Object Type:
Report
System:
The UNT Digital Library
North Texas Dancers march at 2005 Homecoming Parade]
Photograph of the North Texas Dancers marching past the Denton County Courthouse at the 2005 Homecoming Parade. Members of the team can be seen walking in two rows, facing to the right of the camera. They are each wearing a shirt with the number 5 on it and holding a pair of pompoms.
Date:
November 19, 2005
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[UNT cheerleaders carry flags at 2005 Homecoming Parade]
Photograph of UNT cheerleaders carrying North Texas flags during the 2005 Homecoming Parade. A large flag can be seen waving in the center of the photograph, between two rows of parade attendees. A second flag is mostly out of frame on the right side of the photograph.
Date:
November 19, 2005
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library
[UNT cheerleaders perform at 2005 Homecoming Parade]
Photograph of the North Texas Cheerleaders performing at the 2005 Homecoming Parade. Two pairs of cheerleaders can be seen walking single-file, facing to the right of the camera. Each pair consists of a male cheerleader raising both arms to hold the feet of a flyer. Parade attendees are standing behind a garland barrier in the background.
Date:
November 19, 2005
Creator:
Baugh, Brian
Object Type:
Photograph
System:
The UNT Digital Library