59 Matching Results

Results open in a new window/tab.

Survey of the ATLAS Pixel Detector Components (open access)

Survey of the ATLAS Pixel Detector Components

This document provides a description of the survey performed on different componentsof the ATLAS Pixel Detector at different stages of its assembly.
Date: March 19, 2008
Creator: Andreazza, Attilio; Kostyukhim, Vadim & Madaras, Ronald
Object Type: Report
System: The UNT Digital Library
The Budget for Fiscal Year 2009 (open access)

The Budget for Fiscal Year 2009

This report consists of the budget for fiscal year 2009.
Date: March 19, 2008
Creator: Austin, D. Andrew
Object Type: Report
System: The UNT Digital Library
Structural characterization of terrestrial microbial Mn oxides from Pinal Creek, AZ (open access)

Structural characterization of terrestrial microbial Mn oxides from Pinal Creek, AZ

The microbial catalysis of Mn(II) oxidation is believed to be a dominant source of abundant sorption- and redox-active Mn oxides in marine, freshwater, and subsurface aquatic environments. In spite of their importance, environmental oxides of known biogenic origin have generally not been characterized in detail from a structural perspective. Hyporheic zone Mn oxide grain coatings at Pinal Creek, Arizona, a metals-contaminated stream, have been identified as being dominantly microbial in origin and are well studied from bulk chemistry and contaminant hydrology perspectives. This site thus presents an excellent opportunity to study the structures of terrestrial microbial Mn oxides in detail. XRD and EXAFS measurements performed in this study indicate that the hydrated Pinal Creek Mn oxide grain coatings are layer-type Mn oxides with dominantly hexagonal or pseudo-hexagonal layer symmetry. XRD and TEM measurements suggest the oxides to be nanoparticulate plates with average dimensions on the order of 11 nm thick x 35 nm diameter, but with individual particles exhibiting thickness as small as a single layer and sheets as wide as 500 nm. The hydrated oxides exhibit a 10-A basal-plane spacing and turbostratic disorder. EXAFS analyses suggest the oxides contain layer Mn(IV) site vacancy defects, and layer Mn(III) is inferred …
Date: March 19, 2008
Creator: Bargar, John; Fuller, Christopher; Marcus, Matthew A.; Brearley, Adrian J.; Perez De la Rosa, M.; Webb, Samuel M. et al.
Object Type: Article
System: The UNT Digital Library
The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 37, Ed. 1 Wednesday, March 19, 2008 (open access)

The Goldthwaite Eagle (Goldthwaite, Tex.), Vol. 114, No. 37, Ed. 1 Wednesday, March 19, 2008

Weekly newspaper from Goldthwaite, Texas that includes local, state, and national news along with extensive advertising.
Date: March 19, 2008
Creator: Bridges, Steven W.
Object Type: Newspaper
System: The Portal to Texas History
Perry Daily Journal (Perry, Okla.), Vol. 116, No. 55, Ed. 1 Wednesday, March 19, 2008 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 116, No. 55, Ed. 1 Wednesday, March 19, 2008

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: March 19, 2008
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Congressional Research Service and the American Legislative Process (open access)

The Congressional Research Service and the American Legislative Process

This report includes a description of the Congressional Research Service and it's benefits to the American Legislative Process
Date: March 19, 2008
Creator: Brudnick, Ida A. & Back, Stanley
Object Type: Report
System: The UNT Digital Library
Oral History Interview with Roy Burley, March 19, 2008 transcript

Oral History Interview with Roy Burley, March 19, 2008

The National Museum of the Pacific War presents an oral interview with Roy Burley. Burley was born in Halletsville, Texas 29 October 1923. Following his graduation from high school in San Antonio, he attended Prairie View A & M College. While in college, he served for three years in the Enlisted Reserve Corps. In May 1943 he was called to active duty and went to Camp Maxey at Paris, Texas. Selected to continue his college education, he was sent to Howard University in Washington DC. After completing one semester he was ordered to report to the 1318th Engineer General Service Regiment as a surveyor. After working on the construction of an air strip in North Carolina, he volunteered to attend Officers Candidates School. After ninety days of training at Fort Benning, Georgia, he was commissioned a second lieutenant. He then went to Fort Huachuca, Arizona, where he joined the 372nd Infantry Regiment as a rifle platoon leader in Company C. After the unit had set sail for Hawaii a message was received that the 372nd was deactivated. Upon arrival in Hawaii, he was assigned to the Transportation Corps and sent to the Philippines where he reported to a trucking battalion. …
Date: March 19, 2008
Creator: Burley, Roy W.
Object Type: Sound
System: The Portal to Texas History
Oral History Interview with Roy Burley, March 19, 2008 (open access)

Oral History Interview with Roy Burley, March 19, 2008

The National Museum of the Pacific War presents an oral interview with Roy Burley. Burley was born in Halletsville, Texas 29 October 1923. Following his graduation from high school in San Antonio, he attended Prairie View A & M College. While in college, he served for three years in the Enlisted Reserve Corps. In May 1943 he was called to active duty and went to Camp Maxey at Paris, Texas. Selected to continue his college education, he was sent to Howard University in Washington DC. After completing one semester he was ordered to report to the 1318th Engineer General Service Regiment as a surveyor. After working on the construction of an air strip in North Carolina, he volunteered to attend Officers Candidates School. After ninety days of training at Fort Benning, Georgia, he was commissioned a second lieutenant. He then went to Fort Huachuca, Arizona, where he joined the 372nd Infantry Regiment as a rifle platoon leader in Company C. After the unit had set sail for Hawaii a message was received that the 372nd was deactivated. Upon arrival in Hawaii, he was assigned to the Transportation Corps and sent to the Philippines where he reported to a trucking battalion. …
Date: March 19, 2008
Creator: Burley, Roy W.
Object Type: Text
System: The Portal to Texas History
The Altus Times (Altus, Okla.), Vol. 109, No. 249, Ed. 1 Wednesday, March 19, 2008 (open access)

The Altus Times (Altus, Okla.), Vol. 109, No. 249, Ed. 1 Wednesday, March 19, 2008

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: March 19, 2008
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Science & Technology Review May/June 2008 (open access)

Science & Technology Review May/June 2008

This month's issue has the following articles: (1) Biomedical Technology Has a Home at Livermore--Commentary by Cherry A. Murray; (2) Shaping the Future of Aneurysm Treatments--Livermore foam devices may offer significant advantages for treating some forms of aneurysms; (3) Ring around a Stellar Shell: A Tale of Scientific Serendipity--Using a three-dimensional model, Livermore scientists have solved a long-standing puzzle of stellar evolution; and (4) On Assignment in Washington, DC--Livermore personnel in Washington, DC, support federal sponsors and become valuable assets to Laboratory programs.
Date: March 19, 2008
Creator: Chinn, D J
Object Type: Report
System: The UNT Digital Library
Physical Property Changes in Aging Plutonium Alloys (open access)

Physical Property Changes in Aging Plutonium Alloys

None
Date: March 19, 2008
Creator: Chung, B W; Thompson, S R & Hiromoto, D S
Object Type: Article
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 88, No. 79, Ed. 1 Wednesday, March 19, 2008 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 88, No. 79, Ed. 1 Wednesday, March 19, 2008

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: March 19, 2008
Creator: Clements, Clifford E.
Object Type: Newspaper
System: The Portal to Texas History
SURFACE GEOPHYSICAL EXPLORATION OF TX AND TY TANK FARMS AT THE HANFORD SITE RESULTS OF BACKGROUND CHARACTERIZATION WITH MAGNETICS AND ELECTROMAGNETIC (open access)

SURFACE GEOPHYSICAL EXPLORATION OF TX AND TY TANK FARMS AT THE HANFORD SITE RESULTS OF BACKGROUND CHARACTERIZATION WITH MAGNETICS AND ELECTROMAGNETIC

None
Date: March 19, 2008
Creator: DA, MYERS; D, RUCKER; M, LEBITT; B, CUBBAGE & HENDERSON
Object Type: Report
System: The UNT Digital Library
FRACTIONAL CRYSTALLIZATION FEED ENVELOPE (open access)

FRACTIONAL CRYSTALLIZATION FEED ENVELOPE

Laboratory work was completed on a set of evaporation tests designed to establish a feed envelope for the fractional crystallization process. The feed envelope defines chemical concentration limits within which the process can be operated successfully. All 38 runs in the half-factorial design matrix were completed successfully, based on the qualitative definition of success. There is no feed composition likely to be derived from saltcake dissolution that would cause the fractional crystallization process to not meet acceptable performance requirements. However, some compositions clearly would provide more successful operation than other compositions.
Date: March 19, 2008
Creator: DL, HERTING
Object Type: Report
System: The UNT Digital Library
Measurement of Electron Clouds in Large Accelerators by Microwave Dispersion (open access)

Measurement of Electron Clouds in Large Accelerators by Microwave Dispersion

Clouds of low energy electrons in the vacuum beam pipes of accelerators of positively charged particle beams present a serious limitation for operation at high currents. Furthermore, it is difficult to probe their density over substantial lengths of the beam pipe. We have developed a novel technique to directly measure the electron cloud density via the phase shift induced in a TE wave transmitted over a section of the accelerator and used it to measure the average electron cloud density over a 50 m section in the positron ring of the PEP-II collider at the Stanford Linear Accelerator Center.
Date: March 19, 2008
Creator: De Santis, S.; Byrd, J. M.; Caspers, F.; Krasnykh, A.; Kroyer, T.; Pivi, M. T. F. et al.
Object Type: Article
System: The UNT Digital Library
Remaining Sites Verification Package for the 100-D-2 Lead Sheeting Waste Site, Waste Site Reclassification Form 2007-030 (open access)

Remaining Sites Verification Package for the 100-D-2 Lead Sheeting Waste Site, Waste Site Reclassification Form 2007-030

The 100-D-2 Lead Sheeting waste site was located approximately 50 m southwest of the 185-D Building and approximately 16 m north of the east/west oriented road. The site consisted of a lead sheet covering a concrete pad. In accordance with this evaluation, the verification sampling results support a reclassification of this site to Interim Closed Out. The results of verification sampling show that residual contaminant concentrations do not preclude any future uses and allow for unrestricted use of shallow zone soils. The results also demonstrate that residual contaminant concentrations are protective of groundwater and the Columbia River.
Date: March 19, 2008
Creator: Dittmer, L. M.
Object Type: Report
System: The UNT Digital Library
HYDRAULIC AND PHYSICAL PROPERTIES OF MCU SALTSTONE (open access)

HYDRAULIC AND PHYSICAL PROPERTIES OF MCU SALTSTONE

The Saltstone Disposal Facility (SDF), located in the Z-Area of the Savannah River Site (SRS), is used for the disposal of low-level radioactive salt solution. The SDF currently contains two vaults: Vault 1 (6 cells) and Vault 4 (12 cells). Additional disposal cells are currently in the design phase. The individual cells of the saltstone facility are filled with saltstone., Saltstone is produced by mixing the low-level radioactive salt solution, with blast furnace slag, fly ash, and cement or lime to form a dense, micro-porous, monolithic, low-level radioactive waste form. The saltstone is pumped into the disposal cells where it subsequently solidifies. Significant effort has been undertaken to accurately model the movement of water and contaminants through the facility. Key to this effort is an accurate understanding of the hydraulic and physical properties of the solidified saltstone. To date, limited testing has been conducted to characterize the saltstone. The primary focus of this task was to estimate the hydraulic and physical properties of MCU (Modular Caustic Side Solvent Extraction Unit) saltstone relative to two permeating fluids. These fluids included simulated groundwater equilibrated with vault concrete and simulated saltstone pore fluid. Samples of the MCU saltstone were prepared by the Savannah …
Date: March 19, 2008
Creator: Dixon, Kenneth & Phifer, Mark
Object Type: Report
System: The UNT Digital Library
Suppression of Type-I ELMs Using a Single Toroidal Row of Magnetic Field Perturbation Coils in DIII-D (open access)

Suppression of Type-I ELMs Using a Single Toroidal Row of Magnetic Field Perturbation Coils in DIII-D

None
Date: March 19, 2008
Creator: Fenstermacher, M. E.; Evans, T. E.; Osborne, T. H.; Schaffer, M. J.; deGrassie, J. S.; Gohil, P. et al.
Object Type: Article
System: The UNT Digital Library
Second Research Coordination Meeting on Reference Database for Neutron Activation Analysis -- Summary Report (open access)

Second Research Coordination Meeting on Reference Database for Neutron Activation Analysis -- Summary Report

The second meeting of the Co-ordinated Research Project on"Reference Database for Neutron Activation Analysis" was held at the IAEA, Vienna from 7-9 May, 2007. A summary of the presentations made by participants is given, along with reports on specifically assigned tasks and subsequent discussions. In order to meet the overall objectives of this CRP, the outputs have been reiterated and new task assignments made.
Date: March 19, 2008
Creator: Firestone, Richard B. & Kellett, Mark A.
Object Type: Report
System: The UNT Digital Library
Medicaid and Graduate Medical Education (open access)

Medicaid and Graduate Medical Education

None
Date: March 19, 2008
Creator: Herz, Elicia J. & Tilson, Sibyl
Object Type: Report
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 25, No. 100, Ed. 1 Wednesday, March 19, 2008 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 25, No. 100, Ed. 1 Wednesday, March 19, 2008

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: March 19, 2008
Creator: Hughes, Dustin
Object Type: Newspaper
System: The Gateway to Oklahoma History
Foreign Direct Investment in the United States: An Economic Analysis (open access)

Foreign Direct Investment in the United States: An Economic Analysis

Foreign direct investment in the United States declined sharply after 2000, when a record $300 billion was invested in U.S. businesses and real estate. In 2004, according to preliminary data, foreigners invested about $100 billion. Foreign direct investments are highly sought after by State and local governments that are struggling to create additional jobs in their localities.
Date: March 19, 2008
Creator: Jackson, James K.
Object Type: Report
System: The UNT Digital Library
Federal Reserve Interest Rate Changes: 2000-2008 (open access)

Federal Reserve Interest Rate Changes: 2000-2008

None
Date: March 19, 2008
Creator: Labonte, Marc & Makinen, Gail E.
Object Type: Report
System: The UNT Digital Library
Annealing as grown large volume CZT single crystals increased spectral resolution (open access)

Annealing as grown large volume CZT single crystals increased spectral resolution

The spectroscopic performance of current large-volume Cadmium 10% Zinc Telluride, Cd{sub 0.9}Zn{sub 0.1}Te, (CZT) detectors is impaired by cumulative effect of tellurium precipitates (secondary phases) presented in CZT single-crystal grown by low-pressure Bridgman techniques(1). This statistical effect may limit the energy resolution of large-volume CZT detectors (typically 2-5% at 662 keV for 12-mm thick devices). The stochastic nature of the interaction prevents the use of any electronic or digital charge correction techniques without a significant reduction in the detector efficiency. This volume constraint hampers the utility of CZT since the detectors are inefficient at detecting photons >1MeV and/or in low fluency situations. During the project, seven runs CZT ingots have been grown, in these ingots the indium dopant concentrations have been changed in the range between 0.5ppm to 6ppm. The I-R mapping imaging method has been employed to study the Te-precipitates. The Teprecipitates in as-grown CZT wafers, and after annealing wafers have been systematically studied by using I-R mapping system (home installed, resolution of 1.5 {micro}m). We employed our I-R standard annealing CZT (Zn=4%) procedure or two-steps annealing into radiation CZT (Zn=10%), we achieved the 'non'-Te precipitates (size < 1 {micro}m) CZT n+-type with resistivity > 10{sup 9-10} {Omega}-cm. We …
Date: March 19, 2008
Creator: Li, Dr. Longxia
Object Type: Report
System: The UNT Digital Library