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572
On the Contribution of Gamma Ray Bursts to the Galactic Inventory of Some Intermediate Mass Nuclei
Light curves from a growing number of Gamma Ray Bursts (GRBs) indicate that GRBs copiously produce radioactive Ni moving outward at fractions of the speed of light. We calculate nuclear abundances of elements accompanying the outflowing Ni under the assumption that this Ni originates from a wind blown off of a viscous accretion disk. We also show that GRB's likely contribute appreciably to the galactic inventory of {sup 42}Ca, {sup 45}Sc, {sup 46}Ti, {sup 49}Ti, {sup 63}Cu, and may be an important site for the production of {sup 64}Zn.
Date:
January 23, 2004
Creator:
Pruet, J; Surman, R & McLaughlin, G C
Object Type:
Article
System:
The UNT Digital Library
The Optimist (Abilene, Tex.), Vol. 92, No. 30, Ed. 1, Friday, January 23, 2004
Tri-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date:
January 23, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Oral History Interview with George Cross, January 23, 2004
The National Museum of the Pacific War presents an oral interview with George Cross. Cross joined the Navy in August of 1944. He was trained as a yeoman. Cross served on a destroyer in the Atlantic. He describes how his ship screened convoys by disrupting an air attack by German planes and depth charging a suspected submarine. Cross also talks about his duties as a phone talker during general quarters and the type of work performed by a yeoman. He was discharged soon after he returned to the US.
Date:
January 23, 2004
Creator:
Cross, George
Object Type:
Sound
System:
The Portal to Texas History
Oral History Interview with George Cross, January 23, 2004
The National Museum of the Pacific War presents an oral interview with George Cross. Cross joined the Navy in August of 1944. He was trained as a yeoman. Cross served on a destroyer in the Atlantic. He describes how his ship screened convoys by disrupting an air attack by German planes and depth charging a suspected submarine. Cross also talks about his duties as a phone talker during general quarters and the type of work performed by a yeoman. He was discharged soon after he returned to the US.
Date:
January 23, 2004
Creator:
Cross, George
Object Type:
Text
System:
The Portal to Texas History
Oxidative Alkaline leaching of Americium from simulated high-level nuclear waste sludges
Oxidative alkaline leaching has been proposed to pre-treat the high-level nuclear waste sludges to remove some of the problematic (e.g., Cr) and/or non-radioactive (e.g., Na, Al) constituents before vitrification. It is critical to understand the behavior of actinides, americium and plutonium in particular, in oxidative alkaline leaching. We have studied the leaching behavior of americium from four different sludge simulants (BiPO{sub 4}, BiPO{sub 4 modified}, Redox, PUREX) using potassium permanganate and potassium persulfate in alkaline solutions. Up to 60% of americium sorbed onto the simulants is leached from the sludges by alkaline persulfate and permanganate. The percentage of americium leached increases with [NaOH] (between 1.0 and 5.0 M). The initial rate of americium leaching by potassium persulfate increases in the order BiPO{sub 4} sludge < Redox sludge < PUREX sludge. The data are most consistent with oxidation of Am{sup 3+} in the sludge to either AmO{sub 2}{sup +} or AmO{sub 2}{sup 2+} in solution. Though neither of these species is expected to exhibit long-term stability in solution, the potential for mobilization of americium from sludge samples would have to be accommodated in the design of any oxidative leaching process for real sludge samples.
Date:
January 23, 2004
Creator:
Reed, Wendy A.; Garnov, Alexander Yu.; Rao, Linfeng; Nash, Kenneth L. & Bond, Andrew H.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 111, No. 15, Ed. 1 Friday, January 23, 2004
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 23, 2004
Creator:
Brown, Gloria
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Political Organizations Under Section 527 of the Internal Revenue Code
None
Date:
January 23, 2004
Creator:
Lunder, Erika
Object Type:
Report
System:
The UNT Digital Library
Post-Irradiation Examination of Array Targets - Part I
During FY 2001, two arrays, each containing seven neptunium-loaded targets, were irradiated at the Advanced Test Reactor in Idaho to examine the influence of multi-target self-shielding on {sup 236}Pu content and to evaluate fission product release data. One array consisted of seven targets that contained 10 vol% NpO{sub 2} pellets, while the other array consisted of seven targets that contained 20 vol % NpO{sub 2} pellets. The arrays were located in the same irradiation facility but were axially separated to minimize the influence of one array on the other. Each target also contained a dosimeter package, which consisted of a small NpO{sub 2} wire that was inside a vanadium container. After completion of irradiation and shipment back to the Oak Ridge National Laboratory, nine of the targets (four from the 10 vol% array and five from the 20 vol% array) were punctured for pressure measurement and measurement of {sup 85}Kr. These nine targets and the associated dosimeters were then chemically processed to measure the residual neptunium, total plutonium production, {sup 238}Pu production, and {sup 236}Pu concentration at discharge. The amount and isotopic composition of fission products were also measured. This report provides the results of the processing and analysis of …
Date:
January 23, 2004
Creator:
Icenhour, A.S.
Object Type:
Report
System:
The UNT Digital Library
Preconditioned MoM Solutions for Complex Planar Arrays
The numerical analysis of large arrays is a complex problem. There are several techniques currently under development in this area. One such technique is the FAIM (Faster Adaptive Integral Method). This method uses a modification of the standard AIM approach which takes into account the reusability properties of matrices that arise from identical array elements. If the array consists of planar conducting bodies, the array elements are meshed using standard subdomain basis functions, such as the RWG basis. These bases are then projected onto a regular grid of interpolating polynomials. This grid can then be used in a 2D or 3D FFT to accelerate the matrix-vector product used in an iterative solver. The method has been proven to greatly reduce solve time by speeding the matrix-vector product computation. The FAIM approach also reduces fill time and memory requirements, since only the near element interactions need to be calculated exactly. The present work extends FAIM by modifying it to allow for layered material Green's Functions and dielectrics. In addition, a preconditioner is implemented to greatly reduce the number of iterations required for a solution. The general scheme of the FAIM method is reported in; this contribution is limited to presenting new …
Date:
January 23, 2004
Creator:
Fasenfest, B. J.; Jackson, D.; Champagne, N.; Wilton, D. & Capolino, F.
Object Type:
Article
System:
The UNT Digital Library
The President’s State of the Union Message: Frequently Asked Questions
None
Date:
January 23, 2004
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Qtexas, Volume 4, Issue 19, January 23, 2004
Weekly magazine containing news, information about events, interviews, and articles of interest to the gay and lesbian community in Texas, with advertising.
Date:
January 23, 2004
Creator:
Qtexas Publishing, LLC
Object Type:
Journal/Magazine/Newsletter
System:
The UNT Digital Library
The Ranger (San Antonio, Tex.), Vol. 78, No. 12, Ed. 1 Friday, January 23, 2004
Weekly student newspaper from San Antonio College in San Antonio, Texas that includes campus news along with advertising.
Date:
January 23, 2004
Creator:
San Antonio College
Object Type:
Newspaper
System:
The Portal to Texas History
A Real Time Coal Content/Ore Grade (C2OG) Sensor, Technical Report: October - December 2003
This tenth quarterly technical report discusses the progress made on a machine vision technique for ore grading based on hyperspectral imaging. A graduate student at Montana Tech has successfully defended her thesis related to this project. Arrangements with Stillwater Mining Company to deploy a machine vision system in their core room have been completed. Designs for they system that will be installed next quarter have been drawn and parts are being machined. Presentations on the spectral imaging system developed during this effort have been made to Stillwater Mining Company and at a remote sensing symposium at Montana State University.
Date:
January 23, 2004
Creator:
Swanson, Rand
Object Type:
Report
System:
The UNT Digital Library
The Rice Thresher, Vol. 91, No. 16, Ed. 1 Friday, January 23, 2004
A weekly student newspaper from the Rice University in Houston, Texas that includes campus news and commentaries along with advertising.
Date:
January 23, 2004
Creator:
Berenson, Mark
Object Type:
Newspaper
System:
The Portal to Texas History
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 88, No. 115, Ed. 1 Friday, January 23, 2004
Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 23, 2004
Creator:
Broaddus, Matthew B.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Science& Technology Review March 2004
This month's issue has the following articles: (1) ''Rethinking Atoms for Peace and the Future of Nuclear Technology'' a commentary by Ronald F. Lehman II; (2) ''Rich Legacy from Atoms for Peace'' In 1953, President Eisenhower encouraged world leaders to pursue peaceful uses of nuclear technology. Many of Livermore's contributions in the spirit of this initiative continue to benefit society today. (3) ''Tropopause Height Becomes Another Climate-Change Fingerprint'' Simulations and observational data show that human activities are largely responsible for the steady elevation of the tropopause, the boundary between the troposphere and the stratosphere. (4) ''A Better Method for Certifying the Nuclear Stockpile'' Livermore and Los Alamos are developing a common framework for evaluating the reliability and safety of nuclear weapons. (5) ''Observing How Proteins Loop the Loop'' A new experimental method developed at Livermore allows scientists to monitor the folding processes of proteins, one molecule at a time.
Date:
January 23, 2004
Creator:
McMahon, D H
Object Type:
Report
System:
The UNT Digital Library
The Sealy News (Sealy, Tex.), Vol. 117, No. 7, Ed. 1 Friday, January 23, 2004
Semiweekly newspaper from Sealy, Texas that includes local, state, and national news along with advertising.
Date:
January 23, 2004
Creator:
Griffin, Joanie & Horecka, Bobby
Object Type:
Newspaper
System:
The Portal to Texas History
Tax Administration: Information on Expenses Claimed by Small Business Sole Proprietorships
A letter report issued by the General Accounting Office with an abstract that begins "Meeting the requirements of tax rules can be especially burdensome to small business sole proprietorships that independently own their businesses. Internal Revenue Service (IRS) data show that, compared to other taxpayer groups, sole proprietorships have more problems complying with their tax obligations. Simplifying how sole proprietorships account for and report expenses may ease their burden and increase compliance. Because of the requesters' interest in alleviating any unnecessary burden that federal tax requirements impose on small businesses, we were asked to provide information on the expenses that sole proprietorships report on IRS's Form 1040 Schedule C--Profit or Loss from Business and on Form 1040 Schedule F--Profit or Loss from Farming. By having information on the expenses reported by sole proprietorships, policymakers may be in a better position to develop alternatives for simplifying how these taxpayers account for and report their expenses."
Date:
January 23, 2004
Creator:
United States. General Accounting Office.
Object Type:
Report
System:
The UNT Digital Library
Texas Register, Volume 29, Number 4, Pages 563-726, January 23, 2004
A weekly publication, the Texas Register serves as the journal of state agency rulemaking for Texas. Information published in the Texas Register includes proposed, adopted, withdrawn and emergency rule actions, notices of state agency review of agency rules, governor's appointments, attorney general opinions, and miscellaneous documents such as requests for proposals. After adoption, these rulemaking actions are codified into the Texas Administrative Code.
Date:
January 23, 2004
Creator:
Texas. Secretary of State.
Object Type:
Journal/Magazine/Newsletter
System:
The Portal to Texas History
University Press (Beaumont, Tex.), Vol. 80, No. 26, Ed. 1 Friday, January 23, 2004
Semiweekly newspaper from Lamar University in Beaumont, Texas that includes local, national, and campus news along with advertising.
Date:
January 23, 2004
Creator:
Gurski, Patrick
Object Type:
Newspaper
System:
The Portal to Texas History