Degree Department

232 Matching Results

Results open in a new window/tab.

Bryan Mound SPR cavern 113 remedial leach stage 1 analysis. (open access)

Bryan Mound SPR cavern 113 remedial leach stage 1 analysis.

The U.S. Strategic Petroleum Reserve implemented the first stage of a leach plan in 2011-2012 to expand storage volume in the existing Bryan Mound 113 cavern from a starting volume of 7.4 million barrels (MMB) to its design volume of 11.2 MMB. The first stage was terminated several months earlier than expected in August, 2012, as the upper section of the leach zone expanded outward more quickly than design. The oil-brine interface was then re-positioned with the intent to resume leaching in the second stage configuration. This report evaluates the as-built configuration of the cavern at the end of the first stage, and recommends changes to the second stage plan in order to accommodate for the variance between the first stage plan and the as-built cavern. SANSMIC leach code simulations are presented and compared with sonar surveys in order to aid in the analysis and offer projections of likely outcomes from the revised plan for the second stage leach.
Date: August 1, 2013
Creator: Rudeen, David Keith; Weber, Paula D. & Lord, David L.
Object Type: Report
System: The UNT Digital Library
Analysis of the Monitoring Network at the Salmon, Mississippi, Site (open access)

Analysis of the Monitoring Network at the Salmon, Mississippi, Site

The Salmon site in southern Mississippi was the location of two underground nuclear tests and two methane-oxygen gas explosion tests conducted in the Tatum Salt Dome at a depth of 2,715 feet below ground surface. The U.S. Atomic Energy Commission (a predecessor agency of the U.S. Department of Energy [DOE]) and the U.S. Department of Defense jointly conducted the tests between 1964 and 1970. The testing operations resulted in surface contamination at multiple locations on the site and contamination of shallow aquifers. No radionuclides from the nuclear tests were released to the surface or to groundwater, although radionuclide-contaminated drill cuttings were brought to the surface during re-entry drilling. Drilling operations generated the largest single volume of waste materials, including radionuclide-contaminated drill cuttings and drilling fluids. Nonradioactive wastes were also generated as part of the testing operations. Site cleanup and decommissioning began in 1971 and officially ended in 1972. DOE conducted additional site characterization between 1992 and 1999. The historical investigations have provided a reasonable understanding of current surface and shallow subsurface conditions at the site, although some additional investigation is desirable. For example, additional hydrologic data would improve confidence in assigning groundwater gradients and flow directions in the aquifers. The …
Date: August 1, 2013
Creator: unknown
Object Type: Report
System: The UNT Digital Library
Preliminary Scaling and controls Analysis of an FHR-HTSE System Idaho National Laboratory Summer 2013 Final Report (open access)

Preliminary Scaling and controls Analysis of an FHR-HTSE System Idaho National Laboratory Summer 2013 Final Report

For new nuclear reactor system designs to be approved by regulatory agencies like the Nuclear Regulatory Commission (NRC), the details of system operation must be validated with respect to standards of safety, control, and output. A scaled experiment that replicates certain properties of the system can be used to validate compliance with regulatory standards, while avoiding the prohibitive cost and labor required to develop a fully functional prototype system; therefore, designing such an experiment is of special interest to current efforts to develop hybrid energy systems (HES) that integrate small modular reactors (SMRs), renewable energy systems, and industrial process applications such as hydrogen production and desalination. In addition, a scaled experiment can be an economical method of analyzing the interconnections between HES components and understanding the time constants associated between inter-component energy and information flows. This report discusses the results of a preliminary scaling analysis done for the primary loop of a 300 MWth Fluoride-Salt-Cooled High Temperature Reactor (FHR) that is coupled with a High-Temperature Steam Electrolysis system (HTSE), as well as the basic control logic that governs the primary components and the necessary hardware to achieve optimal functionality. The scaled facility will be a 1 MWth system that uses …
Date: August 1, 2013
Creator: Bragg-Sitton, Shannon; Sabharwall, Piyush & Upadhya, Rohit
Object Type: Report
System: The UNT Digital Library
JLIFE: THE JEFFERSON LAB INTERACTIVE FRONT END FOR THE OPTICAL PROPAGATION CODE (open access)

JLIFE: THE JEFFERSON LAB INTERACTIVE FRONT END FOR THE OPTICAL PROPAGATION CODE

We present details on a graphical interface for the open source software program Optical Propagation Code, or OPC. This interface, written in Java, allows a user with no knowledge of OPC to create an optical system, with lenses, mirrors, apertures, etc. and the appropriate drifts between them. The Java code creates the appropriate Perl script that serves as the input for OPC. The mode profile is then output at each optical element. The display can be either an intensity profile along the x axis, or as an isometric 3D plot which can be tilted and rotated. These profiles can be saved. Examples of the input and output will be presented.
Date: August 1, 2013
Creator: Watson, Anne M. & Shinn, Michelle D.
Object Type: Article
System: The UNT Digital Library
Study of CSR Effects in the Jefferson Laboratory FEL Driver (open access)

Study of CSR Effects in the Jefferson Laboratory FEL Driver

In a recent experiment conducted on the Jefferson Laboratory IR FEL driver the effects of Coherent Synchrotron Radiation (CSR) on beam quality were studied. The primary goal of this work was to explore CSR output and effect on the beam with variation of the bunch compression in the IR chicane. This experiment also provides a valuable opportunity to benchmark existing CSR models in a system that may not be fully represented by a 1-D CSR model. Here we present results from this experiment and compare to initial simulations of CSR in the magnetic compression chicane of the machine. Finally, we touch upon the possibility for CSR induced microbunching gain in the magnetic compression chicane, and show that parameters in the machine are such that it should be thoroughly damped.
Date: August 1, 2013
Creator: Hall, C. C.; Biedron, S.; Burleson, Theodore A.; Milton, Stephen V.; Morin, Auralee L.; Benson, Stephen V. et al.
Object Type: Article
System: The UNT Digital Library
Cooper Review (Cooper, Tex.), Vol. 133, No. 31, Ed. 1 Thursday, August 1, 2013 (open access)

Cooper Review (Cooper, Tex.), Vol. 133, No. 31, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Cooper, Texas that includes local, state, and national news along with advertising.
Date: August 1, 2013
Creator: Roller, Cindy
Object Type: Newspaper
System: The Portal to Texas History
De Leon Free Press (De Leon, Tex.), Vol. 124, No. 6, Ed. 1 Thursday, August 1, 2013 (open access)

De Leon Free Press (De Leon, Tex.), Vol. 124, No. 6, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from De Leon, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Kestner, Laura
Object Type: Newspaper
System: The Portal to Texas History
The Ennis Daily News (Ennis, Tex.), Ed. 1 Thursday, August 1, 2013 (open access)

The Ennis Daily News (Ennis, Tex.), Ed. 1 Thursday, August 1, 2013

Daily newspaper from Ennis, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Todaro, Nick
Object Type: Newspaper
System: The Portal to Texas History
The Albany News (Albany, Tex.), Vol. 138, No. 11, Ed. 1 Thursday, August 1, 2013 (open access)

The Albany News (Albany, Tex.), Vol. 138, No. 11, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Albany, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Lucas, Melinda L.
Object Type: Newspaper
System: The Portal to Texas History
The Winkler County News (Kermit, Tex.), Vol. 48, No. 30, Ed. 1 Thursday, August 1, 2013 (open access)

The Winkler County News (Kermit, Tex.), Vol. 48, No. 30, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Kermit, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Parks, Phil
Object Type: Newspaper
System: The Portal to Texas History
Canton Herald (Canton, Tex.), Vol. 131, No. 35, Ed. 1 Thursday, August 1, 2013 (open access)

Canton Herald (Canton, Tex.), Vol. 131, No. 35, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Canton, Texas that includes local, state and national news along with some advertising.
Date: August 1, 2013
Creator: Vaughan, Julie
Object Type: Newspaper
System: The Portal to Texas History
The McGregor Mirror and the Crawford Sun (McGregor, Tex.), Vol. 108, No. 31, Ed. 1 Thursday, August 1, 2013 (open access)

The McGregor Mirror and the Crawford Sun (McGregor, Tex.), Vol. 108, No. 31, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from McGregor, Texas that includes local, state, and national news along with advertising.
Date: August 1, 2013
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Olney Enterprise (Olney, Tex.), Vol. 105, No. 22, Ed. 1 Thursday, August 1, 2013 (open access)

The Olney Enterprise (Olney, Tex.), Vol. 105, No. 22, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Olney, Texas that includes local, state, and national news along with advertising.
Date: August 1, 2013
Creator: Kimbro, Mindi
Object Type: Newspaper
System: The Portal to Texas History
Comanche Chief (Comanche, Tex.), No. 15, Ed. 1 Thursday, August 1, 2013 (open access)

Comanche Chief (Comanche, Tex.), No. 15, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Comanche, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Wilkerson, James C., III
Object Type: Newspaper
System: The Portal to Texas History
Whitewright Sun (Whitewright, Tex.), Vol. 129, No. 31, Ed. 1 Thursday, August 1, 2013 (open access)

Whitewright Sun (Whitewright, Tex.), Vol. 129, No. 31, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Whitewright, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Palmer, Kimberly
Object Type: Newspaper
System: The Portal to Texas History
Van Banner (Van, Tex.), Vol. 18, No. 1, Ed. 1 Thursday, August 1, 2013 (open access)

Van Banner (Van, Tex.), Vol. 18, No. 1, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Van, Texas that includes local, state, and national news along with advertising.
Date: August 1, 2013
Creator: Vaughan, Julie
Object Type: Newspaper
System: The Portal to Texas History
Mount Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 140, No. 1, Ed. 1 Thursday, August 1, 2013 (open access)

Mount Vernon Optic-Herald (Mount Vernon, Tex.), Vol. 140, No. 1, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Mount Vernon, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Bush-Reves, Lillie
Object Type: Newspaper
System: The Portal to Texas History
East Bernard Express (East Bernard, Tex.), Vol. 70, No. 31, Ed. 1 Thursday, August 1, 2013 (open access)

East Bernard Express (East Bernard, Tex.), Vol. 70, No. 31, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from East Bernard, Texas that includes local, state and national news along with advertising.
Date: August 1, 2013
Creator: Wallace, Bill
Object Type: Newspaper
System: The Portal to Texas History
International Crises and Disasters: U.S. Humanitarian Assistance Response Mechanisms (open access)

International Crises and Disasters: U.S. Humanitarian Assistance Response Mechanisms

This report examines U.S. humanitarian assistance in intentional crises and disaster situations. It considers the sources and type of U.S. government aid, the response mechanisms of key U.S, agencies and departments, and possible issues for Congress--including competing aid and budget priorities, burdensharing and donor-fatigue, the transparency and efficacy of U.S. humanitarian assistance, consequences of such assistance, and potential links to broader U.S. foreign policy goals.
Date: August 1, 2013
Creator: Margesson, Rhoda
Object Type: Report
System: The UNT Digital Library
Crowley Star (Crowley, Tex.), Vol. 27, No. 12, Ed. 1 Thursday, August 1, 2013 (open access)

Crowley Star (Crowley, Tex.), Vol. 27, No. 12, Ed. 1 Thursday, August 1, 2013

Weekly newspaper from Crowley, Texas that includes local, state, and national news along with advertising.
Date: August 1, 2013
Creator: Hinton, Jay
Object Type: Newspaper
System: The Portal to Texas History
Injurious Species Listings Under the Lacey Act: A Legal Briefing (open access)

Injurious Species Listings Under the Lacey Act: A Legal Briefing

This report examines the Lacey Act provision that directs injurious species bans and is codified in the criminal code, Title 18. The injurious species provision addresses prohibited acts, exceptions, and penalties.
Date: August 1, 2013
Creator: Alexander, Kristina
Object Type: Report
System: The UNT Digital Library
Computational Intelligence Based Data Fusion Algorithm for Dynamic sEMG and Skeletal Muscle Force Modelling (open access)

Computational Intelligence Based Data Fusion Algorithm for Dynamic sEMG and Skeletal Muscle Force Modelling

In this work, an array of three surface Electrography (sEMG) sensors are used to acquired muscle extension and contraction signals for 18 healthy test subjects. The skeletal muscle force is estimated using the acquired sEMG signals and a Non-linear Wiener Hammerstein model, relating the two signals in a dynamic fashion. The model is obtained from using System Identification (SI) algorithm. The obtained force models for each sensor are fused using a proposed fuzzy logic concept with the intent to improve the force estimation accuracy and resilience to sensor failure or misalignment. For the fuzzy logic inference system, the sEMG entropy, the relative error, and the correlation of the force signals are considered for defining the membership functions. The proposed fusion algorithm yields an average of 92.49% correlation between the actual force and the overall estimated force output. In addition, the proposed fusionbased approach is implemented on a test platform. Experiments indicate an improvement in finger/hand force estimation.
Date: August 1, 2013
Creator: Chandrasekhar Potluri,; Anugolu, Madhavi; Schoen, Marco P. & Naidu, D. Subbaram
Object Type: Article
System: The UNT Digital Library
Building guide : how to build Xyce from source code. (open access)

Building guide : how to build Xyce from source code.

While Xyce uses the Autoconf and Automake system to configure builds, it is often necessary to perform more than the customary %E2%80%9C./configure%E2%80%9D builds many open source users have come to expect. This document describes the steps needed to get Xyce built on a number of common platforms.
Date: August 1, 2013
Creator: Keiter, Eric Richard; Russo, Thomas V.; Schiek, Richard Louis; Sholander, Peter E.; Thornquist, Heidi K.; Mei, Ting et al.
Object Type: Report
System: The UNT Digital Library
National Computational Infrastructure for Lattice Gauge Theory SciDAC-2 Closeout Report (open access)

National Computational Infrastructure for Lattice Gauge Theory SciDAC-2 Closeout Report

As part of this project work, researchers from Vanderbilt University, Fermi National Laboratory and Illinois Institute of technology developed a real-time cluster fault-tolerant cluster monitoring framework. This framework is open source and is available for download upon request. This work has also been used at Fermi Laboratory, Vanderbilt University and Mississippi State University across projects other than LQCD. The goal for the scientific workflow project is to investigate and develop domain-specific workflow tools for LQCD to help effectively orchestrate, in parallel, computational campaigns consisting of many loosely-coupled batch processing jobs. Major requirements for an LQCD workflow system include: a system to manage input metadata, e.g. physics parameters such as masses, a system to manage and permit the reuse of templates describing workflows, a system to capture data provenance information, a systems to manage produced data, a means of monitoring workflow progress and status, a means of resuming or extending a stopped workflow, fault tolerance features to enhance the reliability of running workflows. Requirements for an LQCD workflow system are available in documentation.
Date: August 1, 2013
Creator: Sun, Xian-He
Object Type: Report
System: The UNT Digital Library