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Calculated Thermodynamic Functions for Gas Phase Uranium, Neptunium, Plutonium, and Americium Oxides (AnO3), Oxyhydroxides (AnO2(OH)2), Oxychlorides (AnO2Cl2), and Oxyfluorides (AnO2F2)
Based on known and estimated molecular constants, the thermodynamic functions, C{sub p}, S{sup o}, H{sup o}-H{sup o}(298), and -(G{sup o} - H{sup o}(298))/T, have been calculated and tabulated for actinide vapors species of the formulas AnO{sub 3}(g), AnO{sub 2}(OH){sub 2}(g), AnO{sub 2}Cl{sub 2}(g), and AnO{sub 2}F{sub 2}(g) where An = U, Np, Pu, and Am. A method to calculate the thermodynamic functions for the mixed species, AnO{sub 2}ClOH(g), AnO{sub 2}FOH(g), and AnO{sub 2}FCl(g), is also given.
Date:
October 31, 2002
Creator:
Ebbinghaus, B. B.
Object Type:
Report
System:
The UNT Digital Library
Recent Advances in Indirect Drive ICF Target Physics
In preparation for ignition on the National Ignition Facility, the Lawrence Livermore National Laboratory's Inertial Confinement Fusion Program, working in collaboration with Los Alamos National Laboratory, Commissariat a lEnergie Atomique (CEA), and Laboratory for Laser Energetics at the University of Rochester, has performed a broad range of experiments on the Nova and Omega lasers to test the fundamentals of the NIF target designs. These studies have refined our understanding of the important target physics, and have led to many of the specifications for the NIF laser and the cryogenic ignition targets. Our recent work has been focused in the areas of hohlraum energetics, symmetry, shock physics, and target design optimization & fabrication.
Date:
October 8, 2002
Creator:
Hammel, B.; Lindl, J.; Amendt, P. A.; Bernat, G. W.; Collins, G. W.; Glenzer, S. H. et al.
Object Type:
Article
System:
The UNT Digital Library
Israeli-United States Relations
This report includes information regarding the relationship between Israel and the United States. Relations with U.S. administrations (beginning with the Carter Administration through the Bush Administration) and issues within Israeli-U.S. relations are among topics discussed in this report.
Date:
October 17, 2002
Creator:
Mark, Clyde R.
Object Type:
Report
System:
The UNT Digital Library
Highlighting High Performance: The Solar Energy Research Facility, Golden, Colorado (Revised)
The Solar Energy Research Facility at the National Renewable Energy Laboratory includes energy-efficient features, making it a high-performing building.
Date:
October 1, 2002
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Multiphase Advection and Radiation Diffusion with Material Interfaces on Unstructured Meshes
A collection of numerical methods are presented for the advection or remapping of material properties on unstructured and staggered polyhedral meshes in arbitrary Lagrange-Eulerian calculations. The methods include several new procedures to track and capture sharp interface boundaries, and to partition radiation energy into multi-material thermal states. The latter is useful for extending and applying consistently single material radiation diffusion solvers to multi-material problems.
Date:
October 3, 2002
Creator:
Anninos, P
Object Type:
Article
System:
The UNT Digital Library
Science& Technology Review October 2002
The October 2002 issue of Science and Technology Review has the following articles: (1) Applied Science Is a Hallmark of This Laboratory--Commentary by Hal Graboske. (2) Sending Up Signals for Genetic Variation--In situ rolling circle amplification promises to advance the detection and treatment of cancer and other diseases. (3) SiMM Is Anything But Simple--Modules of silicon microchannels and microlenses result in the smallest, most powerful, and least expensive laser diode pumps ever. (4) World's Most Powerful Solid-State Laser--A new design allows tremendous scaling up of solid-state laser power. (5) Stepping Up to Extreme Lithography--The next generation of computer chips can now be produced on a commercial scale. (6) Relief for Acute and Chronic Pain--New technology turns an ancient pain management method into a modern medical tool. (7)50th Anniversary Highlight--14 Energy and Environment: Understanding Our World--The Laboratory's energy and environmental research is an important adjunct to its core national security mission.
Date:
October 1, 2002
Creator:
Budil, K S
Object Type:
Report
System:
The UNT Digital Library
Universal Interconnection Technology Workshop Proceedings
The Universal Interconnection Technology (UIT) Workshop - sponsored by the U.S. Department of Energy, Distributed Energy and Electric Reliability (DEER) Program, and Distribution and Interconnection R&D - was held July 25-26, 2002, in Chicago, Ill., to: (1) Examine the need for a modular universal interconnection technology; (2) Identify UIT functional and technical requirements; (3) Assess the feasibility of and potential roadblocks to UIT; (4) Create an action plan for UIT development. These proceedings begin with an overview of the workshop. The body of the proceedings provides a series of industry representative-prepared papers on UIT functions and features, present interconnection technology, approaches to modularization and expandability, and technical issues in UIT development as well as detailed summaries of group discussions. Presentations, a list of participants, a copy of the agenda, and contact information are provided in the appendices of this document.
Date:
October 1, 2002
Creator:
Sheaffer, P.; Lemar, P.; Honton, E. J.; Kime, E.; Friedman, N. R.; Kroposki, B. et al.
Object Type:
Book
System:
The UNT Digital Library
A Picosecond 14.7 nm X-Ray Laser for Probing Matter Undergoing Rapid Changes
With laser-driven tabletop x-ray lasers now operating in the efficient saturation regime, the source characteristics of high photon flux, high monochromaticity, picosecond pulse duration, and coherence are well-matched to many applications involving the probing of matter undergoing rapid changes. We give an overview of recent experiments at the Lawrence Livermore National Laboratory (LLNL) Compact Multipulse Terawatt (COMET) laser using the picosecond 14.7 nm x-ray laser as a compact, ultrafast probe for surface analysis and for interferometry of laser-produced plasmas. The plasma density measurements for known laser conditions allow us to reliably and precisely benchmark hydrodynamics codes. In the former case, the x-ray laser ejects photo-electrons, from the valence band or shallow core-levels of the material, and are measured in a time-of-flight analyzer. Therefore, the electronic structure can be studied directly to determine the physical properties of materials undergoing rapid phase changes.
Date:
October 7, 2002
Creator:
Dunn, J.; Smith, R. F.; Nilsen, J.; Nelson, A. J.; Van Buuren, T. W.; Moon, S. J. et al.
Object Type:
Article
System:
The UNT Digital Library
National Ignition Facility Configuration Management Plan
This Configuration Management Plan (CMP) describes the technical and administrative management process for controlling the National Ignition Facility (NIF) Project configuration. The complexity of the NIF Project (i.e., participation by multiple national laboratories and subcontractors involved in the development, fabrication, installation, and testing of NIF hardware and software, as well as construction and testing of Project facilities) requires implementation of the comprehensive configuration management program defined in this plan. A logical schematic illustrating how the plan functions is provided in Figure 1. A summary of the process is provided in Section 4.0, Configuration Change Control. Detailed procedures that make up the overall process are referenced. This CMP is consistent with guidance for managing a project's configuration provided in Department of Energy (DOE) Order 430.1, Guide PMG 10, ''Project Execution and Engineering Management Planning''. Configuration management is a formal discipline comprised of the following four elements: (1) Identification--defines the functional and physical characteristics of a Project and uniquely identifies the defining requirements. This includes selection of components of the end product(s) subject to control and selection of the documents that define the project and components. (2) Change management--provides a systematic method for managing changes to the project and its physical and …
Date:
October 1, 2002
Creator:
Cabral, S. G. & Moore, T. L.
Object Type:
Report
System:
The UNT Digital Library
Unstructured Mesh Connectivity in Unstructured Mapping
The connectivity interface for UnstructuredMapping has been rewritten to provide a more thorough interface to the mesh. This new design also resembles the TSTT mesh query interface. While data is still stored in array form, indexed by integers, the interface provides iterators through the mesh entities and adjacencies. This document describes the additions to the UnstructuredMapping class as well as the definition and use of the UnstructuredMappingIterator and UnstructuredMappingAdjacencyIterator classes.
Date:
October 22, 2002
Creator:
Chand, K
Object Type:
Text
System:
The UNT Digital Library
A Dynamically Adaptive Arbitrary Lagrangian-Eulerian Method for Hydrodynamics
A new method that combines staggered grid Arbitrary Lagrangian-Eulerian (ALE) techniques with structured local adaptive mesh refinement (AMR) has been developed for solution of the Euler equations. The novel components of the combined ALE-AMR method hinge upon the integration of traditional AMR techniques with both staggered grid Lagrangian operators as well as elliptic relaxation operators on moving, deforming mesh hierarchies. Numerical examples demonstrate the utility of the method in performing detailed three-dimensional shock-driven instability calculations.
Date:
October 19, 2002
Creator:
Anderson, R W; Pember, R B & Elliott, N S
Object Type:
Article
System:
The UNT Digital Library
Agency Enforcement of the Prohibition Against Sex Discrimination Mandated by Title IX and EO 13160
This report provides a summary of the federal agencies’ enforcement of and compliance with the prohibition against sex discrimination mandated by Title IX and Executive Order 13160. Specifically, this report discusses the implementation of regulations and procedures for enforcing the Title IX compliance of grant recipients and for enforcing the compliance of the federal agencies themselves with President Clinton’s Executive Order.
Date:
October 28, 2002
Creator:
Feder, Jody
Object Type:
Report
System:
The UNT Digital Library
PROTEIN QUALITY CONTROL IN BACTERIAL CELLS: INTEGRATED NETWORKS OF CHAPERONES AND ATP-DEPENDENT PROTEASES.
It is generally accepted that the information necessary to specify the native, functional, three-dimensional structure of a protein is encoded entirely within its amino acid sequence; however, efficient reversible folding and unfolding is observed only with a subset of small single-domain proteins. Refolding experiments often lead to the formation of kinetically-trapped, misfolded species that aggregate, even in dilute solution. In the cellular environment, the barriers to efficient protein folding and maintenance of native structure are even larger due to the nature of this process. First, nascent polypeptides must fold in an extremely crowded environment where the concentration of macromolecules approaches 300-400 mg/mL and on average, each ribosome is within its own diameter of another ribosome (1-3). These conditions of severe molecular crowding, coupled with high concentrations of nascent polypeptide chains, favor nonspecific aggregation over productive folding (3). Second, folding of newly-translated polypeptides occurs in the context of their vehtorial synthesis process. Amino acids are added to a growing nascent chain at the rate of {approx}5 residues per set, which means that for a 300 residue protein its N-terminus will be exposed to the cytosol {approx}1 min before its C-terminus and be free to begin the folding process. However, because protein …
Date:
October 1, 2002
Creator:
Flanagan, J. M. & Bewley, M. C.
Object Type:
Book
System:
The UNT Digital Library
RCRA Groundwater Quality Assessment Report for Single-Shell Tank Waste Management Area TX-TY (January 1998 through December 2001)
This report presents the findings of groundwater monitoring and characterization at WMA TX-TY in the 200 West Area of the Hanford Site.
Date:
October 31, 2002
Creator:
Horton, Duane G.
Object Type:
Report
System:
The UNT Digital Library
Fast Ignition: Physics Progress in the US Fusion Energy Program and Prospects for Achieving Ignition.
Fast ignition (FI) has significant potential advantages for inertial fusion energy and it is therefore being studied as an exploratory concept in the US fusion energy program. FI is based on short pulse isochoric heating of pre-compressed DT by intense beams of laser accelerated MeV electrons or protons. Recent experimental progress in the study of these two heating processes is discussed. The goal is to benchmark new models in order to predict accurately the requirements for full-scale fast ignition. An overview is presented of the design and experimental testing of a cone target implosion concept for fast ignition. Future prospects and conceptual designs for larger scale FI experiments using planned high energy petawatt upgrades of major lasers in the US are outlined. A long-term roadmap for FI is defined.
Date:
October 16, 2002
Creator:
Key, M. H.; Andersen, C.; Cowan, T.; Fisch, N.; Freeman, R.; Hatchett, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Pacific Northwest National Laboratory Annual Self-Evaluation Report: 2002
This report will summarize PNNL's progress toward accomplishment of the critical outcomes, objectives and performance indicators as delineated in the FY 2002 Performance Evaluation and Fee Agreement. In addition, this report will summarize PNNL's analysis of the results of the FY2002 Peer Reviews, the implementation of PNNL's FY2002 Operational Improvement Initiatives, and the resolution of the Key Areas for Improvements.
Date:
October 29, 2002
Creator:
Cuello, Robert
Object Type:
Report
System:
The UNT Digital Library
Nuclear Smuggling and International Terrorism: Issues and Options for U.S. Policy
None
Date:
October 22, 2002
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Steam System Opportunity Assessment for the Pulp and Paper, Chemical Manufacturing, and Petroleum Refining Industries: Main Report
This report assesses steam generation and use in the pulp and paper, chemical, and petroleum refining industries, and estimates the potential for energy savings from implementation of steam system performance and efficiency improvements.
Date:
October 1, 2002
Creator:
unknown
Object Type:
Book
System:
The UNT Digital Library
The Use of Electromyogram (EMG) Telemetry to Assess Swimming Activity and Energy Use of Adult Spring Chinook Salmon Migrating through the Tailraces, Fishways, and Forebays of Bonneville Dam, 2000 and 2001
In 2000, PNNL conducted a two-year study for the U.S. Army Corps of Engineers to investigate energy use and swimming performance of adult spring chinook salmon (Oncorhynchus tshawystcha) migrating upstream through a large hydropower dam on the Columbia River. The investigation involved one year of laboratory study and one year of field study at Bonneville Dam. The objectives of the laboratory study were to 1) measure active rates of oxygen consumption of adult spring chinook salmon at three water temperatures over a range of swimming speeds; 2) estimate the upper critical swimming speed (Ucrit) of adult spring chinook salmon; and 3) monitor electromyograms (EMGs) of red and white muscle in the salmon over a range of swimming speeds. Laboratory results showed rate of oxygen consumption and red and white muscle activity in adult spring chinook salmon were strongly correlated with swimming speed over a range of fish sizes and at three different temperatures. In the field studies at Bonneville Dam, EMG radiotelemetry was used to examine the amount of energy spring chinook salmon expend while migrating upstream past the dam?s tailraces, fishways, and forebays. Aerobic and anaerobic energy use rates were determined. Energy use was estimated for different specific sections …
Date:
October 16, 2002
Creator:
Brown, Richard S.; Geist, David R. & Mesa, Matthew G.
Object Type:
Report
System:
The UNT Digital Library
Best Estimate Radiation Flux Value-Added Procedure: Algorithm Operational Details and Explanations
This document describes some specifics of the algorithm for best estimate evaluation of radiation fluxes at Southern Great Plains (SGP) Central Facility (CF). It uses the data available from the three co-located surface radiometer platforms at the SGP CF to automatically determine the best estimate of the irradiance measurements available. The Best Estimate Flux (BEFlux) value-added procedure (VAP) was previously named Best Estimate ShortWave (BESW) VAP, which included all of the broadband and spectral shortwave (SW) measurements for the SGP CF. In BESW, multiple measurements of the same quantities were handled simply by designating one as the primary measurement and using all others to merely fill in any gaps. Thus, this “BESW” is better termed “most continuous,” since no additional quality assessment was applied. We modified the algorithm in BESW to use the average of the closest two measurements as the best estimate when possible, if these measurements pass all quality assessment criteria. Furthermore, we included longwave (LW) fields in the best estimate evaluation to include all major components of the surface radiative energy budget, and renamed the VAP to Best Estimate Flux (BEFLUX1LONG).
Date:
October 1, 2002
Creator:
Shi, Y. & Long, C. N.
Object Type:
Report
System:
The UNT Digital Library
Final Report for Grant DE-FG05-94ER14421 Period 11/1/2001-10/31/2002 Molecular Modeling and Simulation of Aqueous Electrolyte Systems
Our proposal focused on the following research areas: (1) Development of intermolecular potentials for water and aqueous solutions; (2) Molecular-based study of polymorphic phase transitions and growth of nanocrystalline aggregates in hydrothermal solutions; (3) Molecular simulation of ion-pairing in high-temperature high-pressure electrolyte solutions; and (4) SAFT equation of state modeling of supercritical aqueous solutions - (a) Solubility of alkanes in supercritical water, and (b) Ion speciation in ambient and supercritical aqueous solutions We have made progress in all four areas, details of which are described in the paper. Before doing so, however, we reflect on some of the significant changes impacting the research program during the past year.
Date:
October 30, 2002
Creator:
Cummings, Peter T. & McCabe, Clare
Object Type:
Report
System:
The UNT Digital Library
Deposit Summary
Deposit summary of $1,000.00 made on October 17, 2002.
Date:
October 17, 2002
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Reconciliation Report
Reconciliation report with an ending account balance of $1,544.07 reconciled for the period ending on September 30, 2002.
Date:
October 9, 2002
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Illinois Library Resources and Automation in the Networked Environment: An Analysis and Recommended Strategies Final Report
This study identifies strategies for enhancing access to Illinois libraries' holdings, where the strategies ensure the best stewardship possible for state and federal grant dollars for library automation and resources.
Date:
October 2002
Creator:
Moen, William E.; Enoch, Larry & Greenway-Hayes, Debra
Object Type:
Report
System:
The UNT Digital Library