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Defect Based Spin Mediation in Delta-Phase Plutonium (open access)

Defect Based Spin Mediation in Delta-Phase Plutonium

We earlier reported the measured decrease of electrical resistivity during isochronal-annealing of ion irradiation damage that was accumulated at low-temperature (10 or 20K), and the temperature dependence of the resistance of defect-populations produced by low-temperature damage-accumulation and annealing in a stabilized {delta}-phase plutonium alloy, Pu(3.3 at%Ga)[1]. We noted that the temperature dependence of the resistance of defects resulting from low-temperature damage accumulation and subsequent annealing exhibits a -ln(T) temperature dependence suggestive of a Kondo impurity. A discussion of a possible ''structure-property'' effect, as it might relate to the nature of the {delta}-phase of Pu, is presented.
Date: November 19, 2003
Creator: Fluss, M J; Wirth, B D; Wall, M; Felter, T E; Caturla, M J; Kubota, A et al.
Object Type: Article
System: The UNT Digital Library
Electromagnetic Gyrokinetic Simulations (open access)

Electromagnetic Gyrokinetic Simulations

A new electromagnetic kinetic electron {delta} particle simulation model has been demonstrated to work well at large values of plasma {beta} times the ion-to-electron mass ratio. The simulation is three-dimensional using toroidal flux-tube geometry and includes electron-ion collisions. The model shows accurate shear Alfven wave damping and microtearing physics. Zonal flows with kinetic electrons are found to be turbulent with the spectrum peaking at zero and having a width in the frequency range of the driving turbulence. This is in contrast with adiabatic electron cases where the zonal flows are near stationary, even though the linear behavior of the zonal flow is not significantly affected by kinetic electrons. zonal fields are found to be very weak, consistent with theoretical predictions for {beta} below the kinetic ballooning limit. Detailed spectral analysis of the turbulence data is presented in the various limits.
Date: November 19, 2003
Creator: Wan, W
Object Type: Article
System: The UNT Digital Library
SPINONS IN A STRONGLY CORRELATED COPPER OXIDE CHAIN. (open access)

SPINONS IN A STRONGLY CORRELATED COPPER OXIDE CHAIN.

Experimental realizations of model magnetic systems--ones in which the interactions between the magnetic ions have a particularly simple form--are test-beds for our fundamental understanding of magnetic phenomena. If we are to understand the unusual properties of complex and potentially useful materials in which magnetism plays an important role, such as colossal magnetoresistive oxides or high temperature superconductors, we must also understand the properties of simple systems. SrCuO{sub 2} is an example of a one-dimensional magnetic system in which the characteristic energy of excitations from the magnetic ground state is comparable to that of charge motion along the chains. Our results show that the spectrum of magnetic excitations is nevertheless well described by that for the limiting case when charge and spin dynamics are separable.
Date: November 19, 2003
Creator: WOO,H. ZALIZNYAK,I. PERRING,T. BROHOLM,C. FROST,C. TAKAGI,H.
Object Type: Report
System: The UNT Digital Library

Ensemble: 2003-11-19 – Symphony Orchestra

Access: Use of this item is restricted to the UNT Community
Concert presented at the UNT College of Music Winspear Performance Hall.
Date: November 19, 2003
Creator: University of North Texas. Symphony Orchestra.
Object Type: Sound
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 22, No. 41, Ed. 1 Wednesday, November 19, 2003 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 22, No. 41, Ed. 1 Wednesday, November 19, 2003

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: November 19, 2003
Creator: Sorter, Dave
Object Type: Newspaper
System: The Portal to Texas History
Implementation of the United States/Russian HEU Agreement: Current Status and Prospects (open access)

Implementation of the United States/Russian HEU Agreement: Current Status and Prospects

During Calendar Year (CY) 2002, the Russian Federation (R.F.) delivered low enriched uranium (LEU) from the conversion and processing of 30 metric tons (MT) of weapons-grade (90% {sup 235}U assay) uranium. Through July 2003, the Highly Enriched Uranium (HEU) Transparency Implementation Program (TIP) will have monitored the conversion of over 190 MT HEU into LEU. This total represents about 38 percent of the projected 500 MT HEU scheduled to be blended down through the year 2013 and is equivalent to the destruction of 7,600 nuclear devices. The National Nuclear Security Administration's (NNSA) HEU-TIP monitors the processing of this HEU at four Russian uranium-processing plants. During CY 2002, United States (U.S.) personnel monitored this process for a total of 194 monitor-weeks by staffing a Transparency Monitoring Office (TMO) located in Novouralsk, and through a series of five-day Special Monitoring Visits (SMV) to the four plants. U.S. monitor observations include the inventory of in-process containers, the observation of operations and non-destructive assay measurements (NDA) to determine {sup 235}U enrichment, as well as the examination and validation of Russian Material Control and Accountability (MC&A) documents. In addition, the U.S. designed Blend Down Monitoring System (BDMS) installed at the Ural Electrochemical Integrated Plant (UEIP) …
Date: November 19, 2003
Creator: Rutkowski, E.
Object Type: Article
System: The UNT Digital Library
Specifically Prescribed Dynamic Thermodynamic Paths and Resolidification Experiments (open access)

Specifically Prescribed Dynamic Thermodynamic Paths and Resolidification Experiments

We describe here a series of dynamic compression experiments using impactors with specifically prescribed density profiles. Building upon previous impactor designs, we compose our functionally graded density impactors of materials whose densities vary from about 0.1 g/cc to more than 15 g/cc. These impactors, whose density profiles are not restricted to be monotonic, can be used to generate prescribed thermodynamic paths in the targets. These paths include quasi-isentropes as well as combinations of shock, rarefraction, and quasi-isentropic compression waves. The time-scale of these experiments ranges from nanoseconds to several microseconds. Strain-rates in the quasi-isentropic compression experiments vary from approximately 10{sup 4}s{sup -1} to 10{sup 6}s{sup -1}. We applied this quasi-isentropic compression technique to resolidify water where ice is at a higher temperature than the initial water sample. The particle velocity of quasi-isentropically compressed water exhibits a two-wave structure and sample thickness scales consistently with water-ice phase transition time. Experiments on resolidification of molten bismuth are also promising.
Date: November 19, 2003
Creator: Nguyen, J.; Orlikowski, D.; Streitz, F.; Holmes, N. & Moriarty, J.
Object Type: Article
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 1 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 1

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the opening statements from Chairman Kean and Governor McGreevey, in addition to the first panel on risks and consequences of Terrorism for the private sector.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 6 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 6

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on future strategies for private sector preparedness with testimony from William G. Raisch, Peter R. Orszag, James Haviaris, and Thomas Susman.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 4 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 4

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes multimedia presentations of initiatives across the United States from Kings County, Washington, and the International Association Assembly Managers and the panel on private sector experience on 9-11 with testimony from William Y. Yun.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 5 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 5

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on standards for emergency management and business continuity with testimony from Glenn Corbett and Randall Yim.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 2 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 2

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on skyscraper safety issues from 9-11 family members with testimony from Monica Gabrielle and Sally Regenhard.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
9-11 Commission Hearing #5, November 19, 2003, Part 3 captions transcript

9-11 Commission Hearing #5, November 19, 2003, Part 3

Recording of the fifth public hearing held by the National Commission on Terrorist Attacks upon the United States on November 19, 2003 at Drew University in Madison, New Jersey. The Commission heard from New Jersey Governor James E. McGreevey; four panels of business officials and federal, state, and local government representatives; and individuals working to enhance emergency preparedness in the private sector. This section includes the panel on public/private initiatives since 9-11, with testimony from Micheal F. Byrne, Dennis J. Reimer, and Richard A. Andrews.
Date: November 19, 2003
Creator: National Commission on Terrorist Attacks upon the United States
Object Type: Video
System: The UNT Digital Library
Form CJ-8, Annual Probation Survey: 2003 (open access)

Form CJ-8, Annual Probation Survey: 2003

Blank probation data survey containing a series of questions related to the probationary population in a particular location, with instructions for filling out the survey.
Date: November 19, 2003
Creator: United States. Bureau of Justice Statistics.
Object Type: Text
System: The UNT Digital Library
Form CJ-7, Annual Parole Survey: 2003 (open access)

Form CJ-7, Annual Parole Survey: 2003

Blank parole data survey containing a series of questions related to the parole population in a particular location, with instructions for filling out the survey.
Date: November 19, 2003
Creator: United States. Bureau of Justice Statistics.
Object Type: Text
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 105, No. 211, Ed. 1 Wednesday, November 19, 2003 (open access)

Altus Times (Altus, Okla.), Vol. 105, No. 211, Ed. 1 Wednesday, November 19, 2003

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: November 19, 2003
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, November 19, 2003 (open access)

The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, November 19, 2003

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: November 19, 2003
Creator: Schwind, Jim & Looby, Edward
Object Type: Newspaper
System: The Portal to Texas History
Alaska Oil and Gas Exploration, Development, and Permitting Project (open access)

Alaska Oil and Gas Exploration, Development, and Permitting Project

This is the second technical report, covering the period from April 1, 2003 through September 30, 2003. This project brings together three parts of the oil exploration, development, and permitting process to form the foundation for a more fully integrated information technology infrastructure for the State of Alaska. The geo-technical component is a shared effort between the State Department of Administration and the US Department of Energy. The Alaska Oil and Gas Conservation Commission is rapidly converting high volumes of paper documents and geo-technical information to formats suitable for search and retrieval over the Internet. The permitting component is under the lead of the DNR Office of Project Management and Permitting. A web-based system will enable the public and other review participants to track permit status, submit and view comments, and obtain important project information on-line. By automating several functions of the current manual process, permit applications will be completed more quickly and accurately, and agencies will be able to complete reviews with fewer delays. Structural changes are taking place in terms of organization, statutory authority, and regulatory requirements. Geographic Information Systems are a central component to the organization of information, and the delivery of on-line services. Progress has been …
Date: November 19, 2003
Creator: McMahon, Richard; Crandall, Robert; Dense, Chas & Weems, Sean
Object Type: Report
System: The UNT Digital Library
The Optimist (Abilene, Tex.), Vol. 92, No. 25, Ed. 1, Wednesday, November 19, 2003 (open access)

The Optimist (Abilene, Tex.), Vol. 92, No. 25, Ed. 1, Wednesday, November 19, 2003

Tri-weekly student newspaper from Abilene Christian University in Abilene, Texas that includes local, state and campus news along with advertising.
Date: November 19, 2003
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, November 19, 2003 (open access)

The Express-Star (Chickasha, Okla.), Ed. 1 Wednesday, November 19, 2003

Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date: November 19, 2003
Creator: Bush, Kent
Object Type: Newspaper
System: The Gateway to Oklahoma History
Simulation Data as Data Streams (open access)

Simulation Data as Data Streams

Computational or scientific simulations are increasingly being applied to solve a variety of scientific problems. Domains such as astrophysics, engineering, chemistry, biology, and environmental studies are benefiting from this important capability. Simulations, however, produce enormous amounts of data that need to be analyzed and understood. In this overview paper, we describe scientific simulation data, its characteristics, and the way scientists generate and use the data. We then compare and contrast simulation data to data streams. Finally, we describe our approach to analyzing simulation data, present the AQSim (Ad-hoc Queries for Simulation data) system, and discuss some of the challenges that result from handling this kind of data.
Date: November 19, 2003
Creator: Abdulla, G.; Arrighi, W. & Critchlow, T.
Object Type: Article
System: The UNT Digital Library
Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 60, Ed. 1 Wednesday, November 19, 2003 (open access)

Sapulpa Daily Herald (Sapulpa, Okla.), Vol. 89, No. 60, Ed. 1 Wednesday, November 19, 2003

Daily newspaper from Sapulpa, Oklahoma that includes local, state, and national news along with advertising.
Date: November 19, 2003
Creator: Broaddus, Matthew B.
Object Type: Newspaper
System: The Gateway to Oklahoma History
HANFORD BERYLLIUM STEERING GROUP CHARTER (open access)

HANFORD BERYLLIUM STEERING GROUP CHARTER

The purpose of the Beryllium Steering Group (BSG) is to (1) provide a forum for discussion of beryllium issues and concerns among Hanford prime contractors and DOE; (2) review proposed changes in prime contractor Chronic Beryllium Disease Prevention Programs (CBDPP) to determine if these changes will result in significant impacts to other contractors and their employees; (3) review proposed changes to Beryllium Hanford Facilities List prior to updating of this list.
Date: November 19, 2003
Creator: Hewitt, E. R.
Object Type: Report
System: The UNT Digital Library
Applied and Environmental Microbiology Gordon Research Conference (open access)

Applied and Environmental Microbiology Gordon Research Conference

The main objective of the Gordon Research Conference on Applied and Environmental Microbiology was to present and discuss new, fundamental research findings on microorganisms, their activities in the environment, their ecosystem-level effects, and their environmental or commercial applications. To accomplish this goal, knowledge of microbial diversity, interactions and population dynamics was required. The genomic basis of microbial processes, the cycling of naturally occurring and hazardous substances, and methodologies to assess the functional relationships of microorganisms in their habitats were essential for understanding the ecological consequences of microbial activities and the formulation of generalizing principles. In the last decade, molecular technology has revealed that microbial diversity is far more extensive than the limited view obtained from culturing procedures. Great advances in environmental microbiology have resulted from the development and application of molecular approaches to ecology and molecular evolution. A further surprise resulting from the application of these new tools is the blurring of the distinction between pathogenic traits versus those considered non-pathogenic. This year's conference addressed the issues of biodiversity, its development, and the impact of stress on gene selection and expression. In addition microbial metabolic versatility with toxins such as heavy metals, antibiotics, and organic pollutants were discussed. The nine …
Date: November 19, 2003
Creator: Wall, Judy D.
Object Type: Article
System: The UNT Digital Library