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536 Matching Results

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(open access)

Bulk Properties of Iron Isotopes

Nuclear level densities and radiative strength functions (RSF) in {sup 56}Fe and {sup 57}Fe were measured using the {sup 57}Fe({sup 3}He,{alpha}{gamma}) and {sup 57}Fe({sup 3}He, {sup 3}He{prime}{gamma}) reactions, respectively, at Oslo Cyclotron Laboratory. A low-energy enhancement in the RSF below 4 MeV energy was observed. This finding cannot be explained by common theoretical models. In a second experiment, two-step cascade intensities with soft primary transitions from the {sup 56}Fe(n,2{gamma}) reaction were measured. The agreement between the two experiments confirms the low-energy enhancement in the RSF. In a third experiment, the neutron evaporation spectrum from the {sup 55}Mn(dn,N){sup 56}Fe reaction was measured at 7-MeV deuteron energy at John Edwards Accelerator Laboratory at Ohio University. Comparison of the level density of {sup 56}Fe obtained from the first and third experiments gives an overall good agreement. Furthermore, observed enhancement for soft {gamma} rays is supported by the last experiment.

Date: July 27, 2006

Creator: Algin, E.; Schiller, A.; Voinov, A.; Agvannluvsan, U.; Belgya, T.; Bernstein, L. et al.

Object Type: Article

System: The UNT Digital Library

(open access)

The Canadian Record (Canadian, Tex.), Vol. 116, No. 30, Ed. 1 Thursday, July 27, 2006

Weekly newspaper from Canadian, Texas that includes local, state and national news along with some advertising.

Date: July 27, 2006

Creator: Brown, Laurie Ezzell

Object Type: Newspaper

System: The Portal to Texas History

(open access)

Characterization of Pathogenicity, Virulence and Host-Pathogen Interractions

The threats of bio-terrorism and newly emerging infectious diseases pose serious challenges to the national security infrastructure. Rapid detection and diagnosis of infectious disease in human populations, as well as characterizing pathogen biology, are critical for reducing the morbidity and mortality associated with such threats. One of the key challenges in managing an infectious disease outbreak, whether through natural causes or acts of overt terrorism, is detection early enough to initiate effective countermeasures. Much recent attention has been directed towards the utility of biomarkers or molecular signatures that result from the interaction of the pathogen with the host for improving our ability to diagnose and mitigate the impact of a developing infection during the time window when effective countermeasures can be instituted. Host responses may provide early signals in blood even from localized infections. Multiple innate and adaptive immune molecules, in combination with other biochemical markers, may provide disease-specific information and new targets for countermeasures. The presence of pathogen specific markers and an understanding of the molecular capabilities and adaptations of the pathogen when it interacts with its host may likewise assist in early detection and provide opportunities for targeting countermeasures. An important question that needs to be addressed is …

Date: July 27, 2006

Creator: Krishnan, A. & Folta, P.

Object Type: Article

System: The UNT Digital Library

(open access)

Comanche Chief (Comanche, Tex.), No. 13, Ed. 1 Thursday, July 27, 2006

Weekly newspaper from Comanche, Texas that includes local, state, and national news along with advertising.

Date: July 27, 2006

Creator: Wilkerson, James C., III

Object Type: Newspaper

System: The Portal to Texas History

(open access)

A Cone Jet-Finding Algorithm for Heavy-Ion Collisions at LHCEnergies

Standard jet finding techniques used in elementary particle collisions have not been successful in the high track density of heavy-ion collisions. This paper describes a modified cone-type jet finding algorithm developed for the complex environment of heavy-ion collisions. The primary modification to the algorithm is the evaluation and subtraction of the large background energy, arising from uncorrelated soft hadrons, in each collision. A detailed analysis of the background energy and its event-by-event fluctuations has been performed on simulated data, and a method developed to estimate the background energy inside the jet cone from the measured energy outside the cone on an event-by-event basis. The algorithm has been tested using Monte-Carlo simulations of Pb+Pb collisions at {radical}s = 5.5 TeV for the ALICE detector at the LHC. The algorithm can reconstruct jets with a transverse energy of 50 GeV and above with an energy resolution of {approx} 30%.

Date: July 27, 2006

Creator: Blyth, S.-L.; Horner, M.J.; Awes, T.C.; Cormier, T.; Gray, H.M.; Klay, J.L. et al.

Object Type: Article

System: The UNT Digital Library

(open access)

Data Mining and Homeland Security: An Overview

Data mining is emerging as one of the key features of many homeland security initiatives. Often used as a means for detecting fraud, assessing risk, and product retailing, data mining involves the use of data analysis tools to discover previously unknown, valid patterns and relationships in large data sets. This report discusses the data mining uses (i.e. Terrorism Information Awareness (TIA) Program) and issues (i.e. data quality, interoperability, privacy), as well as the limitations of data mining.

Date: July 27, 2006

Creator: Seifert, Jeffrey W.

Object Type: Report

System: The UNT Digital Library

(open access)

Defense: FY2007 Authorization and Appropriations

On July 20, the Senate Appropriations Committee marked up its version of the FY2007 defense appropriations bill, H.R. 5631. Floor action is expected to begin on August 1. The Senate bill provides $453.5 billion defense programs, including $50 billion in appropriations for overseas operations. The total is $9.1 billion less than the Administration requested. Earlier, on June 20, the House passed its version of the bill. It provides $416.3 billion for defense programs, $4.1 billion below the request. The amounts in the House and Senate bills are not directly comparable, since some programs in the Senate bill are covered in the House in the Military Quality of Life/Veterans Affairs appropriations bill, H.R. 5385.

Date: July 27, 2006

Creator: Daggett, Stephen

Object Type: Report

System: The UNT Digital Library

(open access)

Deployment and Operation of the ES-3100 Type B Shipping Container

The U.S. Department of Energy (DOE) National Nuclear Security Administration (NNSA) is shipping, for disposition purposes, bulk quantities of fissile materials, primarily highly enriched uranium (HEU). The U.S. Department of Transportation (DOT) specification 6M container has been the workhorse for NNSA and many other shippers of radioactive material since the 1980s. However, the 6M does not conform to the packaging requirements in the Code of Federal Regulations (10 CFR 71) and, for that reason, is being phased out for use in the DOE secure transportation system by the end of 2006. BWXT Y-12 developed and licensed the ES-3100 container to replace the DOT 6M. The ES-3100 was certified by the Nuclear Regulatory Commission (NRC) in April 2006. The process of deploying the new package began in June 2005 and is planned to be completed in July 2006. The package will be fully operational and completely replace the DOT 6M at the Y-12 National Security Complex (Y-12) by October 2006. This paper reviews the deployment process and the mock loading station that was installed at National Transportation Research Center (NTRC) of Oak Ridge National Laboratory. Specialized equipment, tools, and instrumentation that support the handling and loading operations of the ES-3100 are …

Date: July 27, 2006

Creator: Arbital, J. G. & Tousley, D. R.: Miller, D. B.

Object Type: Report

System: The UNT Digital Library

(open access)

The Dublin Citizen (Dublin, Tex.), Vol. 16, No. 48, Ed. 1 Thursday, July 27, 2006

Weekly newspaper from Dublin, Texas that includes local, state, and national news along with advertising.

Date: July 27, 2006

Creator: unknown

Object Type: Newspaper

System: The Portal to Texas History

(open access)

Dynamic Wildfire Risk Mapping: Challenges and Solutions

None

Date: July 27, 2006

Creator: Goldstein, N; Moritz, M & Kearns, F

Object Type: Article

System: The UNT Digital Library

(open access)

Electra Star-News (Electra, Tex.), Vol. 99, No. 50, Ed. 1 Thursday, July 27, 2006

Weekly newspaper from Electra, Texas that includes local, state, and national news along with advertising.

Date: July 27, 2006

Creator: unknown

Object Type: Newspaper

System: The Portal to Texas History

(open access)

The Electrochemical Behavior of Alloy in Extreme Chloride and Bitrate Environments

Alloy 22 specimens were tested in high temperature (100 to 160 C), high concentration chloride and nitrate environments. Results of this study indicate that increasing nitrate to chloride ratio to 0.5 in these electrolytes increases resistance to localized breakdown and enhances repassivation. In these extreme environments, localized corrosion occurred by pitting even though specimens were tested using artificial crevice formers. Open circuit (E{sub corr}), breakdown and repassivation potentials all increase, and pitting morphology changes as nitrate to chloride ratio increases from 0.05 and 0.15 to 0.5. Results also indicate that increasing the temperature from 100 to 160 C increases E{sub corr} values, while breakdown potentials and repassivation potentials peak at 130 C for the 0.5 nitrate to chloride ratio electrolytes.

Date: July 27, 2006

Creator: Etien, R. A.; Gordon, S. R. & Ilevbare, G. O.

Object Type: Report

System: The UNT Digital Library

(open access)

Examples of Radiation Shielding Models

The attached pictures are examples of shielding models used by WSMS. The models were used in shielding evaluations for Tank 50 pump replacement. They show the relative location of shielding to radiation sources for pumps and pipes. None of the calculations that were associated with these models involved UCNI. The last page contains two pictures from a shielding calculation for the saltstone area. The upper picture is a conceptual drawing. The lower picture is an image copied from the website of a supplier for the project.

Date: July 27, 2006

Creator: Willison, Jim

Object Type: Article

System: The UNT Digital Library

(open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Thursday, July 27, 2006

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.

Date: July 27, 2006

Creator: Bush, Kent

Object Type: Newspaper

System: The Gateway to Oklahoma History

(open access)

Fuel Transformer Solid Oxide Fuel Cell

The following report documents the technical approach and conclusions made by Acumentrics Corporation during latest budget period toward the development of a low cost 10kW tubular SOFC power system. The present program, guided under direction from the National Energy Technology Laboratory of the US DOE, is a nine-year cost shared Cooperative Agreement totaling close to $74M funded both by the US DOE as well as Acumentrics Corporation and its partners. The latest budget period ran from January of 2006 through June 2006. Work focused on cell technology enhancements as well as BOP and power electronics improvements and overall system design. Significant progress was made in increasing cell power enhancements as well as decreasing material cost in a drive to meet the SECA cost targets. The following report documents these accomplishments in detail as well as the layout plans for further progress in next budget period.

Date: July 27, 2006

Creator: Bessette, Norman; Schmidt, Douglas S.; Rawson, Jolyon; Foster, Rhys & Litka, Anthony

Object Type: Report

System: The UNT Digital Library

(open access)

[Funeral Program for Claude Wallace Griffin, July 27, 2006]

Funeral program for Mr. Claude Wallace Griffin, born July 9, 1937 and died July 21, 2006. The funeral was held July 27, 2006 at Puente & Sons Funeral Chapel, officiated by Rev. Kevin L. Nelson. The funeral arrangements were made through Puente & Sons Funeral Chapel and he was buried in First Memorial Cemetery in Von Ormy, Texas.

Date: July 27, 2006

Creator: unknown

Object Type: Pamphlet

System: The Portal to Texas History

(open access)

FY2003 and FY2004 State Allocations for Selected Homeland Security Assistance Programs

This report shows the state allocations fo DHS and HHS homeland security assistance programs, as reported by their department documents or press releases. It also shows per capita amounts for each program, as calculated by CRS, using 2002 census estimates.

Date: July 27, 2006

Creator: Reese, Shawn

Object Type: Report

System: The UNT Digital Library