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Effects of Global Boundary and Local Collisionality on Magnetic Reconnection in a Laboratory Plasma (open access)

Effects of Global Boundary and Local Collisionality on Magnetic Reconnection in a Laboratory Plasma

The magnetic reconnection process is studied in a wide range of operating conditions in the well-controlled Magnetic Reconnection Experiment. The reconnection rate is observed to be a function of both global (i.e., system size) and local (collisionality) plasma parameters. When only local collisionality is lowered, the current sheet is shortened while effective resistivity is enhanced, both accelerating reconnection rates. At a fixed collisionality, the current sheet length increases with system size, resulting in the reduction of the reconnection rate. These results quantitatively agree with a generalized Sweet-Parker analysis.
Date: July 24, 2007
Creator: A. Kuritsyn, H. Ji, S.P. Gerhardt, Y. Ren, and M. Yamada
System: The UNT Digital Library
Evaluation of the Cask Transportation Facility Modifications (CTFM) compliance to DOE order 6430.1A Project A.5 and A.6 (open access)

Evaluation of the Cask Transportation Facility Modifications (CTFM) compliance to DOE order 6430.1A Project A.5 and A.6

This report was prepared to evaluate the compliance of CTFM to DOE Order 6430.1A. This document presents the results of an evaluation that was performed to assess compliance of the K West (KW) Cask Transportation Facility Modifications (CTFM) designs against applicable requirements of Department of Energy (DOE) Order 6430.1 A, General Design Criteria. This evaluation was grouped under two categories described as Cask Loadout System (CLS) and Cranes/Other Modifications.
Date: April 24, 2000
Creator: ARD, K.E.
System: The UNT Digital Library
Energy Policy Act of 2005, P.L. 109-58: Electricity Provisions (open access)

Energy Policy Act of 2005, P.L. 109-58: Electricity Provisions

None
Date: January 24, 2006
Creator: Abel, Amy
System: The UNT Digital Library
Optimizing the Delivery of Short-Lived Alpha Particle-Emitting Isotopes to Solid Tumors (open access)

Optimizing the Delivery of Short-Lived Alpha Particle-Emitting Isotopes to Solid Tumors

The underlying hypothesis of this project was that optimal alpha emitter-based radioimmunotherapy (RAIT) could be achieved by pairing the physical half-life of the radioisotope to the biological half-life of the targeting vehicle. The project had two specific aims. The first aim was to create and optimize the therapeutic efficacy of 211At-SAPS-C6.5 diabody conjugates. The second aim was to develop bispecific-targeting strategies that increase the specificity and efficacy of alpha-emitter-based RAIT. In the performance of the first aim, we created 211At-SAPS-C6.5 diabody conjugates that specifically targeted the HER2 tumor associated antigen. In evaluating these immunoconjugates we determined that they were capable of efficient tumor targeting and therapeutic efficacy of established human tumor xenografts growing in immunodeficient mice. We also determined that therapeutic doses were associated with late renal toxicity, likely due to the role of the kidneys in the systemic elimination o f these agents. We are currently performing more studies focused on better understanding the observed toxicity. In the second aim, we successfully generated bispecific single-chain Fv (bs-scFv) molecules that co-targeted HER2 and HER3 or HER2 and HER4. The in vitro kinetics and in vivo tumor-targeting properties of these molecules were evaluated. These studies revealed that the bs-scFv molecules selectively …
Date: November 24, 2004
Creator: Adams, Gregory P.
System: The UNT Digital Library
DWPF GLASS BEADS AND GLASS FRIT TRANSPORT DEMONSTRATION (open access)

DWPF GLASS BEADS AND GLASS FRIT TRANSPORT DEMONSTRATION

DWPF is considering replacing irregularly shaped glass frit with spherical glass beads in the Slurry Mix Evaporator (SME) process to decrease the yield stress of the melter feed (a non-Newtonian Bingham Plastic). Pilot-scale testing was conducted on spherical glass beads and glass frit to determine how well the glass beads would transfer when compared to the glass frit. Process Engineering Development designed and constructed the test apparatus to aid in the understanding and impacts that spherical glass beads may have on the existing DWPF Frit Transfer System. Testing was conducted to determine if the lines would plug with the glass beads and the glass frit slurry and what is required to unplug the lines. The flow loop consisted of vertical and horizontal runs of clear PVC piping, similar in geometry to the existing system. Two different batches of glass slurry were tested: a batch of 50 wt% spherical glass beads and a batch of 50 wt% glass frit in process water. No chemicals such as formic acid was used in slurry, only water and glass formers. The glass beads used for this testing were commercially available borosilicate glass of mesh size -100+200. The glass frit was Frit 418 obtained from …
Date: November 24, 2008
Creator: Adamson, D & Bradley Pickenheim, B
System: The UNT Digital Library
Waste Form and Indrift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary (open access)

Waste Form and Indrift Colloids-Associated Radionuclide Concentrations: Abstraction and Summary

This Model Report describes the analysis and abstractions of the colloids process model for the waste form and engineered barrier system components of the total system performance assessment calculations to be performed with the Total System Performance Assessment-License Application model. Included in this report is a description of (1) the types and concentrations of colloids that could be generated in the waste package from degradation of waste forms and the corrosion of the waste package materials, (2) types and concentrations of colloids produced from the steel components of the repository and their potential role in radionuclide transport, and (3) types and concentrations of colloids present in natural waters in the vicinity of Yucca Mountain. Additionally, attachment/detachment characteristics and mechanisms of colloids anticipated in the repository are addressed and discussed. The abstraction of the process model is intended to capture the most important characteristics of radionuclide-colloid behavior for use in predicting the potential impact of colloid-facilitated radionuclide transport on repository performance.
Date: June 24, 2003
Creator: Aguilar, R.
System: The UNT Digital Library
European Trade Retaliation: The FSC-ETI Case (open access)

European Trade Retaliation: The FSC-ETI Case

None
Date: January 24, 2006
Creator: Aheam, Raymond J.
System: The UNT Digital Library
Globalization, Worker Insecurity, and Policy Approaches (open access)

Globalization, Worker Insecurity, and Policy Approaches

None
Date: July 24, 2007
Creator: Aheam, Raymond J.
System: The UNT Digital Library
Trade and the Americas (open access)

Trade and the Americas

None
Date: May 24, 2002
Creator: Ahearn, Raymond J.
System: The UNT Digital Library
Transatlantic Regulatory Cooperation: Background and Analysis (open access)

Transatlantic Regulatory Cooperation: Background and Analysis

This report is intended to serve as an introduction and primer on a complicated, broad, and often highly technical set of issues.
Date: August 24, 2009
Creator: Ahearn, Raymond J.
System: The UNT Digital Library
U.S.-European Union Trade Relations: Issues and Policy Challenges (open access)

U.S.-European Union Trade Relations: Issues and Policy Challenges

None
Date: October 24, 2002
Creator: Ahearn, Raymond J.
System: The UNT Digital Library
Western Hemisphere Trade Developments (open access)

Western Hemisphere Trade Developments

None
Date: June 24, 2002
Creator: Ahearn, Raymond J.
System: The UNT Digital Library
Laboratory Directed Research and Development FY 2000 Annual Report (open access)

Laboratory Directed Research and Development FY 2000 Annual Report

This Annual Report provides an overview of the FY2000 Laboratory Directed Research and Development (LDRD) Program at Lawrence Livermore National Laboratory (LLNL) and presents a summary of the results achieved by each project during the year.
Date: May 24, 2001
Creator: Al-Ayat, R
System: The UNT Digital Library
Fluorescence Rise Time Measurements for High Temperature Fluorescence-Based Thermometry (open access)

Fluorescence Rise Time Measurements for High Temperature Fluorescence-Based Thermometry

Certain ceramic-like phosphor materials exhibit bright fluorescence with a pronounced temperature dependence over a range which spans the cryogenic to 1700 C, depending on the specific phosphor. To measure temperature, a surface, for instance a turbine blade, is coated with the material. An optical system, sometimes including optical fibers, conveys stimulating light and collects the emission for analysis. Either emission intensity or decay time may indicate temperature. Previously fielded tests have involved surfaces such as blades, vanes, pistons, in-take valves, sheets of galvanneal steel, etc. The fluorescent coatings may be applied to small parts via sputtering methods or to large areas by mixture with inorganic binders. Presented here are results characterizing fluorescence rise times as a means of determining temperature from ambient to 700 C for Y{sub 2}O{sub 3}:Eu.
Date: March 24, 2005
Creator: Allison, S.W.
System: The UNT Digital Library
Intelligent Extruder (open access)

Intelligent Extruder

''Intelligent Extruder'' described in this report is a software system and associated support services for monitoring and control of compounding extruders to improve material quality, reduce waste and energy use, with minimal addition of new sensors or changes to the factory floor system components. Emphasis is on process improvements to the mixing, melting and de-volatilization of base resins, fillers, pigments, fire retardants and other additives in the :finishing'' stage of high value added engineering polymer materials. While GE Plastics materials were used for experimental studies throughout the program, the concepts and principles are broadly applicable to other manufacturers materials. The project involved a joint collaboration among GE Global Research, GE Industrial Systems and Coperion Werner & Pleiderer, USA, a major manufacturer of compounding equipment. Scope of the program included development of a algorithms for monitoring process material viscosity without rheological sensors or generating waste streams, a novel detection scheme for rapid detection of process upsets and an adaptive feedback control system to compensate for process upsets where at line adjustments are feasible. Software algorithms were implemented and tested on a laboratory scale extruder (50 lb/hr) at GE Global Research and data from a production scale system (2000 lb/hr) at GE …
Date: April 24, 2003
Creator: AlperEker; Giammattia, Mark; Houpt, Paul; Kumar, Aditya; Montero, Oscar; Shah, Minesh et al.
System: The UNT Digital Library
Testing the COncept of Drift Shadow with X-Ray Absorption Imaging (open access)

Testing the COncept of Drift Shadow with X-Ray Absorption Imaging

X-ray absorption imaging experiments and measurements of inflow and outflow distribution provide quantitative and vistial evidence for capillary diversion around a drift and a drift-shadow effect. Test cells were constructed from volcanic tuff with either in-plane (one fracture parallel to the face of the test cell) or multi-fracture (with a grid of fractures perpendicular to the test cell) systems. Tracer solutions were dripped in the fractures at ports along the top of the test cell. Discharge along the bottom boundary and in the drift was monitored. Variables included flow rate and fracture aperture. X-ray absorption imaging allowed for visualization of flow paths through the system. Evidence for capillary diversion and drift shadow include: (1) very small (< 1 %,of inflow in most cases) measured discharge into the drift, (2) discharge less than expected under the drift and discharge greater than expected just beyond the drift, and (3) visualization of the tracer-solution flow path from above the drift, around the drift, and shedding beyond the drift. However, tracer was also observed in a natural fracture under the drift in one system. It is unclear whether these high concentrations are due to diversion around the drift and back under the drift or …
Date: April 24, 2006
Creator: Altman, S.J.; Forsberg, A.; Peplinski, W. & Ho, CK.
System: The UNT Digital Library
Guide to Individuals Seated on the House Dais (open access)

Guide to Individuals Seated on the House Dais

This report provides information about the Guide to Individuals Seated on the House Dais. The house of representatives meets in the capitol in the house chamber.
Date: April 24, 2008
Creator: Amer, Mildred
System: The UNT Digital Library
Electrical Signal Path Study and Component Assay for the MAJORANA N-Type Segmented Contact Detector (open access)

Electrical Signal Path Study and Component Assay for the MAJORANA N-Type Segmented Contact Detector

The purpose of the present electrical signal path study is to explore the various issues related to the deployment of highly-segmented low-background Ge detectors for the MAJORANA double-beta decay experiment. A significant challenge is to simultaneously satisfy competing requirements for the mechanical design, electrical readout performance, and radiopurity specifications from the MAJORANA project. Common to all rare search experiments, there is a very stringent limit on the acceptable radioactivity level of all the electronics components involved. Some of the findings are summarized in this report.
Date: February 24, 2009
Creator: Amman, Mark; Bergevin, Marc; Chan, Yuen-Dat; Detwiler, Jason A.; Fujikawa, Brian .; Lesko, Kevin T. et al.
System: The UNT Digital Library
CO-FIRING COAL: FEEDLOT AND LITTER BIOMASS FUELS (open access)

CO-FIRING COAL: FEEDLOT AND LITTER BIOMASS FUELS

The following are proposed activities for quarter 1 (6/15/00-9/14/00): (1) Finalize the allocation of funds within TAMU to co-principal investigators and the final task lists; (2) Acquire 3 D computer code for coal combustion and modify for cofiring Coal:Feedlot biomass and Coal:Litter biomass fuels; (3) Develop a simple one dimensional model for fixed bed gasifier cofired with coal:biomass fuels; and (4) Prepare the boiler burner for reburn tests with feedlot biomass fuels. The following were achieved During Quarter 5 (6/15/00-9/14/00): (1) Funds are being allocated to co-principal investigators; task list from Prof. Mukhtar has been received (Appendix A); (2) Order has been placed to acquire Pulverized Coal gasification and Combustion 3 D (PCGC-3) computer code for coal combustion and modify for cofiring Coal: Feedlot biomass and Coal: Litter biomass fuels. Reason for selecting this code is the availability of source code for modification to include biomass fuels; (3) A simplified one-dimensional model has been developed; however convergence had not yet been achieved; and (4) The length of the boiler burner has been increased to increase the residence time. A premixed propane burner has been installed to simulate coal combustion gases. First coal, as a reburn fuel will be used to …
Date: October 24, 2000
Creator: Annamalai, Dr. Kalyan; Sweeten, Dr. John & Mukhtar, Dr. Sayeed
System: The UNT Digital Library
Individuals with Disabilities Education Act (IDEA): State Grant Formulas (open access)

Individuals with Disabilities Education Act (IDEA): State Grant Formulas

CRS Report for Congress entailing information about state grant formulas regarding the Individuals with Disabilities Act (IDEA). Topics include, characteristics of state formula grants, IDEA State Grant Formulas, funding, etc..
Date: January 24, 2003
Creator: Apling, Richard N.
System: The UNT Digital Library
The Individuals with Disabilities Education Act (IDEA): Parentally Placed Children in Private Schools (open access)

The Individuals with Disabilities Education Act (IDEA): Parentally Placed Children in Private Schools

None
Date: April 24, 2007
Creator: Apling, Richard N. & Jones, Nancy Lee
System: The UNT Digital Library
TRANSPORTATION CASK RECEIPT AND RETURN FACILITY WORKER DOSE ASSESSMENT (open access)

TRANSPORTATION CASK RECEIPT AND RETURN FACILITY WORKER DOSE ASSESSMENT

The purpose of this design calculation is to estimate radiation doses received by personnel working in the Transportation Cask Receipt and Return Facility (TCRRF) of the repository including the personnel at the security gate and cask staging areas. This calculation is required to support the preclosure safety analysis (PCSA) to ensure that the predicted doses are within the regulatory limits prescribed by the U.S. Nuclear Regulatory Commission (NRC). The Cask Receipt and Return Facility receives NRC licensed transportation casks loaded with spent nuclear fuel (SNF) and high-level radioactive waste (HLW). The TCRRF operation starts with the receipt, inspection, and survey of the casks at the security gate and the staging areas, and proceeds to the process facilities. The transportation casks arrive at the site via rail cars or trucks under the guidance of the national transportation system. This calculation was developed by the Environmental and Nuclear Engineering organization and is intended solely for the use of Design and Engineering in work regarding facility design. Environmental and Nuclear Engineering personnel should be consulted before using this calculation for purposes other than those stated herein or for use by individuals other than authorized personnel in the Environmental and Nuclear Engineering organization.
Date: February 24, 2005
Creator: Arakali, V.
System: The UNT Digital Library
U.S.-EU Cooperation Against Terrorism (open access)

U.S.-EU Cooperation Against Terrorism

This report examines the evolution of counterterrorism cooperation between the United States and the European Union (EU), particularly since the September 11, 2001 terrorist attacks. It includes a discussion of U.S.-EU cooperation progress and ongoing challenges, as well as perspectives and issues for Congress.
Date: January 24, 2006
Creator: Archick, Kristin
System: The UNT Digital Library
European Approaches to Homeland Security and Counterterrorism (open access)

European Approaches to Homeland Security and Counterterrorism

This report examines homeland security and counterterrorist measures in six selected European countries: Belgium, France, Germany, Italy, Spain, and the United Kingdom. None of these European countries currently has a single ministry or department equivalent to the U.S. Department of Homeland Security. In most of these countries, responsibility for different aspects of homeland security and counterterrorism is scattered across several ministries or different levels of government.
Date: July 24, 2006
Creator: Archick, Kristin; Ek, Carl; Gallis, Paul E.; Miko, Francis T. & Woehrel, Steven
System: The UNT Digital Library