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LITERATURE REVIEW ON MAXIMUM LOADING OF RADIONUCLIDES ON CRYSTALLINE SILICOTITANATE (open access)

LITERATURE REVIEW ON MAXIMUM LOADING OF RADIONUCLIDES ON CRYSTALLINE SILICOTITANATE

Plans are underway to use small column ion exchange (SCIX) units installed in high-level waste tanks to remove Cs-137 from highly alkaline salt solutions at Savannah River Site. The ion exchange material slated for the SCIX project is engineered or granular crystalline silicotitanate (CST). Information on the maximum loading of radionuclides on CST is needed by Savannah River Remediation for safety evaluations. A literature review has been conducted that culminated in the estimation of the maximum loading of all but one of the radionuclides of interest (Cs-137, Sr-90, Ba-137m, Pu-238, Pu-239, Pu-240, Pu-241, Am-241, and Cm-244). No data was found for Cm-244.
Date: October 13, 2010
Creator: Adu-Wusu, K. & Pennebaker, F.
Object Type: Report
System: The UNT Digital Library
Discharge Physics of High Power Impulse Magnetron Sputtering (open access)

Discharge Physics of High Power Impulse Magnetron Sputtering

High power impulse magnetron sputtering (HIPIMS) is pulsed sputtering where the peak power exceeds the time-averaged power by typically two orders of magnitude. The peak power density, averaged over the target area, can reach or exceed 107 W/m2, leading to plasma conditions that make ionization of the sputtered atoms very likely. A brief review of HIPIMS operation is given in a tutorial manner, illustrated by some original data related to the self-sputtering of niobium in argon and krypton. Emphasis is put on the current-voltage-time relationships near the threshold of self-sputtering runaway. The great variety of current pulse shapes delivers clues on the very strong gas rarefaction, self-sputtering runaway conditions, and the stopping of runaway due to the evolution of atom ionization and ion return probabilities as the gas plasma is replaced by metal plasma. The discussions are completed by considering instabilities and the special case of ?gasless? self-sputtering.
Date: October 13, 2010
Creator: Anders, Andre
Object Type: Article
System: The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 118, No. 197, Ed. 1 Wednesday, October 13, 2010 (open access)

Perry Daily Journal (Perry, Okla.), Vol. 118, No. 197, Ed. 1 Wednesday, October 13, 2010

Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Brown, Gloria
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Altus Times (Altus, Okla.), Vol. 112, No. 222, Ed. 1 Wednesday, October 13, 2010 (open access)

The Altus Times (Altus, Okla.), Vol. 112, No. 222, Ed. 1 Wednesday, October 13, 2010

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
Pesticide Use and Water Quality: Are the Laws Complementary or in Conflict? (open access)

Pesticide Use and Water Quality: Are the Laws Complementary or in Conflict?

This report provides background on the conflict over interpretation and implementation of the Federal Insecticide, Fungicide, and Rodenticide Act (FIFRA) and the Clean Water Act. A brief discussion of the two laws is followed by a review of the major litigation of interest. EPA's efforts to clarify its policy in this area and the November 2006 rule and the 2009 federal court ruling are discussed, as well as possible options for EPA and Congress to further address the FIFRA-CWA issues. In June, EPA proposed a draft general CWA permit that it intends to finalize by April 2011 in response to the court ruling.
Date: October 13, 2010
Creator: Copeland, Claudia
Object Type: Report
System: The UNT Digital Library
Armed Career Criminal Act (18 U.S.C. 924(e)): An Overview (open access)

Armed Career Criminal Act (18 U.S.C. 924(e)): An Overview

This report briefly explores the Armed Career Criminal Act (ACCA), 18 U.S.C. 924(e), which requires imposition of a minimum 15-year term of imprisonment for recidivists convicted of unlawful possession of a firearm under 18 U.S.C. 922(g). Section 924(e) applies only to those defendants who have three prior state or federal convictions for violent felonies or serious drug offenses. The report includes descriptions of constitutional challenges to the application of section 924(e), which have been generally unsuccessful.
Date: October 13, 2010
Creator: Doyle, Charles
Object Type: Report
System: The UNT Digital Library
Catalog of DC Appliances and Power Systems (open access)

Catalog of DC Appliances and Power Systems

This document catalogs the characteristics of current and potential future DC products and power systems.
Date: October 13, 2010
Creator: Garbesi, Karina; Vossos, Vagelis & Shen, Hongxia
Object Type: Report
System: The UNT Digital Library
Homeland Security Department: FY2011 Appropriations (open access)

Homeland Security Department: FY2011 Appropriations

This report describes the FY2011 appropriations for the Department of Homeland Security (DHS). The Administration requested a net appropriation of $45.0 billion in budget authority for FY2011. This amounts to a $1.1 billion, or a 2.4% increase from the $43.9 billion enacted for FY2010. Total budget authority requested by the Administration for DHS for FY2011 amounts to $52.6 billion as compared to $51.7 billion enacted for FY2010.
Date: October 13, 2010
Creator: Haddal, Chad C.
Object Type: Report
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 90, No. 204, Ed. 1 Wednesday, October 13, 2010 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 90, No. 204, Ed. 1 Wednesday, October 13, 2010

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Halter Gray, Janie
Object Type: Newspaper
System: The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 96, No. 22, Ed. 1 Wednesday, October 13, 2010 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 96, No. 22, Ed. 1 Wednesday, October 13, 2010

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Harmon, C. L.
Object Type: Newspaper
System: The Gateway to Oklahoma History
A Regularized Approach for Solving Magnetic Differential Equations and a Revised Iterative Equilibrium Algorithm (open access)

A Regularized Approach for Solving Magnetic Differential Equations and a Revised Iterative Equilibrium Algorithm

A method for approximately solving magnetic differential equations is described. The approach is to include a small diffusion term to the equation, which regularizes the linear operator to be inverted. The extra term allows a "source-correction" term to be defned, which is generally required in order to satisfy the solvability conditions. The approach is described in the context of computing the pressure and parallel currents in the iterative approach for computing magnetohydrodynamic equilibria. __________________________________________________
Date: October 13, 2010
Creator: Hudson, S. R.
Object Type: Report
System: The UNT Digital Library
Mannford Eagle (Mannford, Okla.), Vol. 53, No. 20, Ed. 1 Wednesday, October 13, 2010 (open access)

Mannford Eagle (Mannford, Okla.), Vol. 53, No. 20, Ed. 1 Wednesday, October 13, 2010

Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Hughes, Dustin
Object Type: Newspaper
System: The Gateway to Oklahoma History
[Letter from Edward S. Jones to Helen Snapp, October 31, 2010] (open access)

[Letter from Edward S. Jones to Helen Snapp, October 31, 2010]

Letter from Edward S. Jones from the Department of the Air Force to Helen Snapp inviting Snapp to attend the HRDC workshop in Atlanta, Georgia.
Date: October 13, 2010
Creator: Jones, Edward S.
Object Type: Letter
System: The Portal to Texas History
The Americans with Disabilities Act: Application to the Internet (open access)

The Americans with Disabilities Act: Application to the Internet

This report explains the American with Disabilities Act that provides nondiscrimination protection in employment, public services, public accomodations, and services operated by private entities, transportation, and telecommunications for individuals with disabilities.
Date: October 13, 2010
Creator: Jones, Nancy Lee
Object Type: Report
System: The UNT Digital Library
FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION (open access)

FUEL CYCLE POTENTIAL WASTE FOR DISPOSITION

The United States (U.S.) currently utilizes a once-through fuel cycle where used nuclear fuel (UNF) is stored on-site in either wet pools or in dry storage systems with ultimate disposal in a deep mined geologic repository envisioned. Within the Department of Energy's (DOE) Office of Nuclear Energy (DOE-NE), the Fuel Cycle Research and Development Program (FCR&D) develops options to the current commercial fuel cycle management strategy to enable the safe, secure, economic, and sustainable expansion of nuclear energy while minimizing proliferation risks by conducting research and development of advanced fuel cycles, including modified open and closed cycles. The safe management and disposition of used nuclear fuel and/or nuclear waste is a fundamental aspect of any nuclear fuel cycle. Yet, the routine disposal of used nuclear fuel and radioactive waste remains problematic. Advanced fuel cycles will generate different quantities and forms of waste than the current LWR fleet. This study analyzes the quantities and characteristics of potential waste forms including differing waste matrices, as a function of a variety of potential fuel cycle alternatives including: (1) Commercial UNF generated by uranium fuel light water reactors (LWR). Four once through fuel cycles analyzed in this study differ by varying the assumed expansion/contraction …
Date: October 13, 2010
Creator: Jones, R. & Carter, J.
Object Type: Article
System: The UNT Digital Library
Polarization-selective vortex-core switching by tailored orthogonal Gaussian-pulse currents (open access)

Polarization-selective vortex-core switching by tailored orthogonal Gaussian-pulse currents

We experimentally demonstrate low-power-consumption vortex-core switching in magnetic nanodisks using tailored rotating magnetic fields produced with orthogonal and unipolar Gaussian-pulse currents. The optimal width of the orthogonal pulses and their time delay are found, from analytical and micromagnetic numerical calculations, to be determined only by the angular eigenfrequency {omega}{sub D} for a given vortex-state disk of polarization p, such that {sigma}=1/{omega}{sub D} and {Delta}t={pi}/2 p/{omega}{sub D} . The estimated optimal pulse parameters are in good agreement with the experimental results. This work lays a foundation for energy-efficient information recording in vortex-core cross-point architecture.
Date: October 13, 2010
Creator: Jung, H.; Choi, Y. S.; Yoo, M. W.; Im, M. Y. & Kim, S. K.
Object Type: Article
System: The UNT Digital Library
Afghanistan: Politics, Elections, and Government Performance (open access)

Afghanistan: Politics, Elections, and Government Performance

This report discusses the current political state of Afghanistan, as well as the Afghan government. This report also discusses Afghanistan's relationship with the United States, particularly U.S. efforts to urge President Hamid Karzai, to address corruption within the Afghan government. The report also includes discussion of election fraud and corruption in Afghanistan.
Date: October 13, 2010
Creator: Katzman, Kenneth
Object Type: Report
System: The UNT Digital Library
Velasco re-elected DART Board Chair (open access)

Velasco re-elected DART Board Chair

News release about the election of officers on the DART board of directors, including William "Bill" Velasco as chairman.
Date: October 13, 2010
Creator: Lyons, Morgan & Ball, Mark
Object Type: Text
System: The Portal to Texas History
Yoakum Herald-Times (Yoakum, Tex.), Vol. 118, No. 41, Ed. 1 Wednesday, October 13, 2010 (open access)

Yoakum Herald-Times (Yoakum, Tex.), Vol. 118, No. 41, Ed. 1 Wednesday, October 13, 2010

Weekly newspaper from Yoakum, Texas that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: McCracken, Michael S.
Object Type: Newspaper
System: The Portal to Texas History
The Oklahoma Daily (Norman, Okla.), Vol. 96, No. 39, Ed. 1 Wednesday, October 13, 2010 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 96, No. 39, Ed. 1 Wednesday, October 13, 2010

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: October 13, 2010
Creator: Moriak, Meredith
Object Type: Newspaper
System: The Gateway to Oklahoma History
Summary of the Preliminary Analysis of Savannah River Depleted Uranium Trioxide (open access)

Summary of the Preliminary Analysis of Savannah River Depleted Uranium Trioxide

This report summarizes a preliminary special analysis of the Savannah River Depleted Uranium Trioxide waste stream (SVRSURANIUM03, Revision 2). The analysis is considered preliminary because a final waste profile has not been submitted for review. The special analysis is performed to determine the acceptability of the waste stream for shallow land burial at the Area 5 Radioactive Waste Management Site (RWMS) at the Nevada National Security Site (NNSS). The Savannah River Depleted Uranium Trioxide waste stream requires a special analysis because the waste stream’s sum of fractions exceeds one. The 99Tc activity concentration is 98 percent of the NNSS Waste Acceptance Criteria and the largest single contributor to the sum of fractions.
Date: October 13, 2010
Creator: National Security Technologies, LLC
Object Type: Report
System: The UNT Digital Library
The Clifton Record (Clifton, Tex.), Vol. 116, No. 41, Ed. 1 Wednesday, October 13, 2010 (open access)

The Clifton Record (Clifton, Tex.), Vol. 116, No. 41, Ed. 1 Wednesday, October 13, 2010

Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: October 13, 2010
Creator: Phillips, Dennis
Object Type: Newspaper
System: The Portal to Texas History
The Rambler (Fort Worth, Tex.), Vol. 93, No. 19, Ed. 1 Wednesday, October 13, 2010 (open access)

The Rambler (Fort Worth, Tex.), Vol. 93, No. 19, Ed. 1 Wednesday, October 13, 2010

Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date: October 13, 2010
Creator: Resendez, Jonathan
Object Type: Newspaper
System: The Portal to Texas History
The Rambler (Fort Worth, Tex.), Vol. 93, No. 19, Ed. 1 Wednesday, October 13, 2010 (open access)

The Rambler (Fort Worth, Tex.), Vol. 93, No. 19, Ed. 1 Wednesday, October 13, 2010

Weekly student newspaper from Texas Wesleyan University in Fort Worth, Texas that includes campus and local news along with advertising.
Date: October 13, 2010
Creator: Resendez, Jonathan
Object Type: Newspaper
System: The Portal to Texas History