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3-D Seismic Experimentation and Advanced Processing/Inversion Development for Investigations of the Shallow Subsurface (open access)

3-D Seismic Experimentation and Advanced Processing/Inversion Development for Investigations of the Shallow Subsurface

Under ER63662, 3-D Seismic Experimentation and Advanced Processing/Inversion Development for Investigations of the Shallow Subsurface, we have completed a number of subprojects associated with the Hill Air Force Base (HAFB) high resolution 3-D reflection/tomography dataset.
Date: December 1, 2004
Creator: Levander, Alan R.
Object Type: Report
System: The UNT Digital Library
2004 Pacific Northwest Loads and Resources Study. (open access)

2004 Pacific Northwest Loads and Resources Study.

The Pacific Northwest Loads and Resources Study (White Book), which is published annually by the Bonneville Power Administration (BPA), establishes one of the planning bases for supplying electricity to customers. The White Book contains projections of regional and Federal system load and resource capabilities, along with relevant definitions and explanations. The White Book also contains information obtained from formalized resource planning reports and data submittals including those from individual utilities, the Northwest Power and Conservation Council (Council), and the Pacific Northwest Utilities Conference Committee (PNUCC). The White Book is not an operational planning guide, nor is it used for determining BPA revenues, although the database that generates the data for the White Book analysis contributes to the development of BPA's inventory and ratemaking processes. Operation of the Federal Columbia River Power System (FCRPS) is based on a set of criteria different from that used for resource planning decisions. Operational planning is dependent upon real-time or near-term knowledge of system conditions that include expectations of river flows and runoff, market opportunities, availability of reservoir storage, energy exchanges, and other factors affecting the dynamics of operating a power system. The load resource balance of BPA and/or the region is determined by comparing …
Date: December 1, 2004
Creator: United States. Bonneville Power Administration.
Object Type: Report
System: The UNT Digital Library
2004 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 1 Energy Analysis. (open access)

2004 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 1 Energy Analysis.

None
Date: December 1, 2004
Creator: United States. Bonneville Power Administration.
Object Type: Report
System: The UNT Digital Library
2004 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 2 Capacity Analysis. (open access)

2004 Pacific Northwest Loads and Resources Study, Technical Appendix, Volume 2 Capacity Analysis.

None
Date: December 1, 2004
Creator: United States. Bonneville Power Administration.
Object Type: Report
System: The UNT Digital Library
2005 Solar Decathlon: October 7-16 (open access)

2005 Solar Decathlon: October 7-16

This brochure describes the Solar Decathlon, an international competition among college and university teams to design, build, and operate the most attractive, energy-efficient, solar-powered house.
Date: December 1, 2004
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Accelerator/Experiment operations - FY 2004 (open access)

Accelerator/Experiment operations - FY 2004

This Technical Memorandum (TM) summarizes the accelerator and experiment operations for FY 2004. It is one of a series of annual publications intended to gather information in one place. In this case, the information concerns the FY 2004 Run II at the Tevatron Collider, the MiniBooNE neutrino experiment, and SY 120 activities.
Date: December 1, 2004
Creator: Bromberg, C.; Conrad, J.; Denisov, D.; Holmes, S.; Louis, W.; Meyer, A. et al.
Object Type: Report
System: The UNT Digital Library
Acoustic Detecting and Locating Gas Pipe Line Infringement: Final Contract Report (open access)

Acoustic Detecting and Locating Gas Pipe Line Infringement: Final Contract Report

The extensive network of high-pressure natural gas transmission pipelines covering the United States provides an important infrastructure for our energy independence. Early detection of pipeline leaks and infringements by construction equipment, resulting in corrosion fractures, presents an important aspect of our national security policy. The National Energy Technology Laboratory Strategic Center for Natural Gas (SCVG) is and has been funding research on various applicable techniques. The WVU research team has focused on monitoring pipeline background acoustic signals generated and transmitted by gas flowing through the gas inside the pipeline. In case of a pipeline infringement, any mechanical impact on the pipe wall, or escape of high-pressure gas, generates acoustic signals traveling both up and down stream through the gas. Sudden changes in flow noise are detectable with a Portable Acoustic Monitoring Package (PAMP), developed under this contract. It incorporates a pressure compensating microphone and a signal- recording device. Direct access to the gas inside the line is obtained by mounting such a PAMP, with a 1/2 inch NPT connection, to a pipeline pressure port found near most shut-off valves. An FFT of the recorded signal subtracted by that of the background noise recorded one-second earlier appears to sufficiently isolate the …
Date: December 1, 2004
Creator: Loth, John L.; Morris, Gary J.; Palmer, George M.; Guiler, Richard & Browning, Patrick
Object Type: Report
System: The UNT Digital Library
ACRF Data Collection and Processing Infrastructure (open access)

ACRF Data Collection and Processing Infrastructure

We present a description of the data flow from measurement to long-term archive. We also discuss data communications infrastructure. The data handling processes presented include collection, transfer, ingest, quality control, creation of Value-Added Products (VAP), and data archiving.
Date: December 1, 2004
Creator: Macduff, M. & Egan, D.
Object Type: Report
System: The UNT Digital Library
Adaptive Planning and Prediction in Agent-Supported Distributed Collaboration. (open access)

Adaptive Planning and Prediction in Agent-Supported Distributed Collaboration.

Agents that act as user assistants will become invaluable as the number of information sources continue to proliferate. Such agents can support the work of users by learning to automate time-consuming tasks and filter information to manageable levels. Although considerable advances have been made in this area, it remains a fertile area for further development. One application of agents under careful scrutiny is the automated negotiation of conflicts between different user's needs and desires. Many techniques require explicit user models in order to function. This dissertation explores a technique for dynamically constructing user models and the impact of using them to anticipate the need for negotiation. Negotiation is reduced by including an advising aspect to the agent that can use this anticipation of conflict to adjust user behavior.
Date: December 2004
Creator: Hartness, Ken T. N.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Advanced exterior sensor project : final report, September 2004. (open access)

Advanced exterior sensor project : final report, September 2004.

This report (1) summarizes the overall design of the Advanced Exterior Sensor (AES) system to include detailed descriptions of system components, (2) describes the work accomplished throughout FY04 to evaluate the current health of the original prototype and to return it to operation, (3) describes the status of the AES and the AES project as of September 2004, and (4) details activities planned to complete modernization of the system to include development and testing of the second-generation AES prototype.
Date: December 1, 2004
Creator: Ashby, M. Rodema
Object Type: Report
System: The UNT Digital Library
Age and Responses to the Events of September 11, 2001 (open access)

Age and Responses to the Events of September 11, 2001

Following the terrorist attacks on the United States on September 11, 2001, many turned to the field of psychology for greater understanding of the impact of such events and guidance in supporting our citizens. This study sought to gain greater understanding of the differential impact of the September 11th attack on individuals by investigating the influence of age, psychological hardiness, and repression versus sensitization as forms of coping behavior on psychological health. Both an initial cross-sectional sample (172 young adults & 231older adults) and a short-term longitudinal follow-up (39 young adults & 58 older adults) were included in the study. Older age, psychological hardiness and the use of a repressing coping style were found to each individually relate to greater resilience/less dysfunction at both time one and two. For young adults, high hardy repressors faired best, followed by high hardy sensitizers. Low hardy young adults demonstrated similar levels of dysfunction regardless of coping style (repressions/sensitization). For older adults, coping style impacted both high and low hardy individuals equally, with high hardy repressors demonstrating greater functioning. This study attempted to gain greater insight into explanations for these and previous findings of greater resilience among older adults. In explaining the greater resilience …
Date: December 2004
Creator: Holmes, D. Nicole
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Aging in the large CDF axial drift chamber (open access)

Aging in the large CDF axial drift chamber

The Central Outer Tracker (COT) is a large axial drift chamber in the Collider Detector at Fermilab operating with a gas mixture that is 50/50 argon/ethane with an admixture of 1.7% isopropanol. In its first two years of operation the COT showed unexpected aging with the worst parts of the chamber experiencing a gain loss of {approx}50% for an accumulated charge of {approx}35 mC/cm. By monitoring the pulse height of hits on good tracks, it was possible to determine the gain as a function of time and location in the chamber. In addition, the currents of the high voltage supplies gave another monitor of chamber gain and its dependence on the charge deposition rate. The aging was worse on the exhaust end of the chamber consistent with polymer buildup as the gas flows through the chamber. The distribution in azimuth suggests that aging is enhanced at lower temperatures, but other factors such as gas flow patterns may be involved. Elemental and molecular analysis of the sense wires found a coating that is mostly carbon and hydrogen with a small amount of oxygen; no silicon or other contaminants were identified. High resolution electron microscope pictures of the wire surface show that …
Date: December 1, 2004
Creator: Allspach, D.; Ambrose, D.; Binkley, M.; Bromberg, C.; Burkett, K.; Kephart, R. et al.
Object Type: Article
System: The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 106, No. 202, Ed. 1 Wednesday, December 1, 2004 (open access)

Altus Times (Altus, Okla.), Vol. 106, No. 202, Ed. 1 Wednesday, December 1, 2004

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: December 1, 2004
Creator: Andrews, Mike
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, December 1, 2004 (open access)

The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, December 1, 2004

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: December 1, 2004
Creator: Schwind, Jim & Looby, Edward
Object Type: Newspaper
System: The Portal to Texas History
An Annual Report on Classified Employee Turnover for Fiscal Year 2004 (open access)

An Annual Report on Classified Employee Turnover for Fiscal Year 2004

Report of the Texas State Auditor's Office related to the statewide turnover rate for full-time classified employees, which is used to monitor total employee loss to the State. Turnover rates are broken down into various categories in order to determine trends. Retention strategies are provided to monitor and curb excessive turnover, which can affect an organization's ability to meet its mission.
Date: December 2004
Creator: Texas. Office of the State Auditor.
Object Type: Report
System: The Portal to Texas History
Annual Reports to the Legislature on Certain Matters: 2004 (open access)

Annual Reports to the Legislature on Certain Matters: 2004

Annual report detailing expenditures by the Texas Department of Transportation during 2004, including the unified transportation program (UTP), turnpike and toll road projects, and some rail facilities, as well as the amount of bonds, public securities, and other funds used for transportation projects.
Date: December 1, 2004
Creator: Texas. Department of Transportation.
Object Type: Report
System: The Portal to Texas History
Appellate Recruitment Patterns in the Higher British Judiciary: 1850 - 1990 (open access)

Appellate Recruitment Patterns in the Higher British Judiciary: 1850 - 1990

This study seeks to advance the understanding of appellate promotion in the senior judiciary of Great Britain . It describes the population and attributes of judges who served in the British High Courts, Court of Appeal, and Appellate Committee of the House of Lords (i.e., Law Lords) from 1850 to 1990. It specifically builds upon the work of C. Neal Tate and tests his model of appellate recruitment on a larger and augmented database. The study determines that family status, previously asserted as having a large effect on recruitment to the appellate courts, is not as important as previously believed. It concludes that merit effects, professional norms, and institutional constraints offer equally satisfactory or better explanations of appellate recruitment patterns.
Date: December 2004
Creator: Thomas, Bruce K.
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Application of optimal prediction to molecular dynamics (open access)

Application of optimal prediction to molecular dynamics

Optimal prediction is a general system reduction technique for large sets of differential equations. In this method, which was devised by Chorin, Hald, Kast, Kupferman, and Levy, a projection operator formalism is used to construct a smaller system of equations governing the dynamics of a subset of the original degrees of freedom. This reduced system consists of an effective Hamiltonian dynamics, augmented by an integral memory term and a random noise term. Molecular dynamics is a method for simulating large systems of interacting fluid particles. In this thesis, I construct a formalism for applying optimal prediction to molecular dynamics, producing reduced systems from which the properties of the original system can be recovered. These reduced systems require significantly less computational time than the original system. I initially consider first-order optimal prediction, in which the memory and noise terms are neglected. I construct a pair approximation to the renormalized potential, and ignore three-particle and higher interactions. This produces a reduced system that correctly reproduces static properties of the original system, such as energy and pressure, at low-to-moderate densities. However, it fails to capture dynamical quantities, such as autocorrelation functions. I next derive a short-memory approximation, in which the memory term is …
Date: December 1, 2004
Creator: Barber IV, John Letherman
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Application of the SAMGrid Test-Harness for Performance Evaluation and Tuning of a Distributed Cluster Implementation of Data Handling Services (open access)

Application of the SAMGrid Test-Harness for Performance Evaluation and Tuning of a Distributed Cluster Implementation of Data Handling Services

The SAMGrid team has recently refactored its test harness suite for greater flexibility and easier configuration. This makes possible more interesting applications of the test harness, for component tests, integration tests, and stress tests. This new implementation of the test harness is a Python framework which uses XML for configuration and small plug-in python modules for specific test purposes We report on the architecture of the test harness and its recent application to stress tests of a new analysis cluster at Fermilab, to explore the extremes of analysis use cases and the relevant parameters for tuning in the SAMGrid station services. One current testing application is running on a 128-CPU analysis cluster with access to 6 TB distributed cache and also to a 2 TB centralized cache, permitting studies of different cache strategies. We have also studied the service parameters which affect the performance of retrieving data from tape storage. The use cases studied vary from those which will require rapid file delivery with short processing time per file, to the opposite extreme of long processing time per file. These results are interesting for their implications with regard to Grid operations, and illustrate the type of monitoring and test facilities …
Date: December 1, 2004
Creator: Lyon, A.; Baranovski, A.; Garzoglio, G.; Loebel-Carpenter, L.; Herber, R.; Illingworth, R. et al.
Object Type: Article
System: The UNT Digital Library
APPSPACK 4.0 : asynchronous parallel pattern search for derivative-free optimization. (open access)

APPSPACK 4.0 : asynchronous parallel pattern search for derivative-free optimization.

APPSPACK is software for solving unconstrained and bound constrained optimization problems. It implements an asynchronous parallel pattern search method that has been specifically designed for problems characterized by expensive function evaluations. Using APPSPACK to solve optimization problems has several advantages: No derivative information is needed; the procedure for evaluating the objective function can be executed via a separate program or script; the code can be run in serial or parallel, regardless of whether or not the function evaluation itself is parallel; and the software is freely available. We describe the underlying algorithm, data structures, and features of APPSPACK version 4.0 as well as how to use and customize the software.
Date: December 1, 2004
Creator: Gray, Genetha Anne & Kolda, Tamara Gibson
Object Type: Report
System: The UNT Digital Library
The Aqueous Thermodynamics and Complexation Reactions of Anionic Silica and Uranium Species to High Concentration (open access)

The Aqueous Thermodynamics and Complexation Reactions of Anionic Silica and Uranium Species to High Concentration

The objective of this research project is to develop the necessary thermodynamic data, including aqueous phase stability constants and Pitzer ion-interaction parameters, to predict the changes in the aqueous phase chemistry that occur when high ionic strength, highly basic tank wastes enter the vadose zone.
Date: December 1, 2004
Creator: Choppin, Gregory R.
Object Type: Report
System: The UNT Digital Library
The Archer Advocate (Holliday, Tex.), Vol. 2, No. 35, Ed. 1 Wednesday, December 1, 2004 (open access)

The Archer Advocate (Holliday, Tex.), Vol. 2, No. 35, Ed. 1 Wednesday, December 1, 2004

Weekly newspaper from Holliday, Texas that includes local, state, and national news along with advertising.
Date: December 1, 2004
Creator: Thomas, John
Object Type: Newspaper
System: The Portal to Texas History
Arsenic in water treatment. (open access)

Arsenic in water treatment.

Sandia National Laboratories (SNL) is collaborating with the Awwa Research Foundation (AwwaRF) and WERC (A Consortium for Environmental Education and Technology Development) in a program for the development and testing of innovative technologies that have the potential to substantially reduce the costs associated with arsenic removal from drinking water. Sandia National Laboratories will administer contracts placed with AwwaRF and WERC to carry out bench scale studies and economic analyses/outreach activities, respectively. The elements of the AwwaRF program include (1) identification of new technologies, (2) proof-of-concept laboratory studies and, (3) a research program that will meet the other needs of small utilities by providing solutions to small utilities so that they may successfully meet the new arsenic MCL. WERC's activities will include development of an economic analysis tool for Pilot Scale Demonstrations and development of educational training and technical assistance tools. The objective of the Sandia Program is the field demonstration testing of innovative technologies. The primary deliverables of the Sandia program will be engineering analyses of candidate technologies; these will be contained in preliminary reports and final analysis reports. Projected scale-up costs will be generated using a cost model provided by WERC or another suitable model.
Date: December 1, 2004
Creator: Siegel, Malcolm Dean
Object Type: Report
System: The UNT Digital Library
Assessment of Potential for Ion Driven Fast Ignition (open access)

Assessment of Potential for Ion Driven Fast Ignition

Critical issues and ion beam requirements are explored for fast ignition using ion beams to provide fuel compression using indirect drive and to provide separate short pulse ignition heating using direct drive. Several ion species with different hohlraum geometries are considered for both accelerator-produced and laser-produced ion ignition beams. Ion-driven fast ignition targets are projected to have modestly higher gains than with conventional heavy-ion fusion, and may offer some other advantages for target fabrication and for use of advanced fuels. However, much more analysis and experiments are needed before conclusions can be drawn regarding the feasibility for meeting the ion beam transverse and longitudinal emittances, focal spots, pulse lengths, and target standoff distances required for ion-driven fast ignition.
Date: December 1, 2004
Creator: Logan, B. Grant; Bangerter, Roger O.; Callahan, Debra A.; Tabak, Max; Roth, Markus; Perkins, L. John et al.
Object Type: Article
System: The UNT Digital Library