529 Matching Results

Results open in a new window/tab.

[Letter from Al Daniels to Jimmy Rocha] (open access)

[Letter from Al Daniels to Jimmy Rocha]

Letter from Al Daniels to Jimmy Rocha on July 20, 2008 discussing yard signs sold at the TSDC booth at the Democratic Party State Convention.
Date: July 20, 2008
Creator: unknown
Object Type: Letter
System: The UNT Digital Library
[Agenda for the Texas Stonewall Democratic Caucus Executive Board Meeting] (open access)

[Agenda for the Texas Stonewall Democratic Caucus Executive Board Meeting]

Agenda for the Texas Stonewall Democratic Caucus Executive Board Meeting on July 20, 2008. TSDC Executive Board Meeting Agenda on July 20, 2008 with a breakdown of various topics discussed including committee reports, and other businesses. Handwritten notes about TSDC Executive Committee Meeting notes on yellow lined paper. Business card for Bruce D. Shelton, Audit Committee is stapled to page. Minutes TSDC Executive Board Meeting on July 20, 2008 discussing various club reports and topics. Proposed Budget for TSDC on July 20, 2008 through January 31, 2009 of a bank balance of $1,207.65. Summary of activities at TSDC meeting on July 20, 2008.
Date: July 20, 2008
Creator: unknown
Object Type: Text
System: The UNT Digital Library
Greensheet (Fort Worth, Tex.), Vol. 31, No. 348, Ed. 1 Thursday, March 20, 2008 (open access)

Greensheet (Fort Worth, Tex.), Vol. 31, No. 348, Ed. 1 Thursday, March 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: March 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Fort Worth, Tex.), Vol. 32, No. 228, Ed. 1 Thursday, November 20, 2008 (open access)

Greensheet (Fort Worth, Tex.), Vol. 32, No. 228, Ed. 1 Thursday, November 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: November 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 32, No. 134, Ed. 1 Wednesday, August 20, 2008 (open access)

The Greensheet (Dallas, Tex.), Vol. 32, No. 134, Ed. 1 Wednesday, August 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: August 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Dallas, Tex.), Vol. 31, No. 316, Ed. 1 Wednesday, February 20, 2008 (open access)

The Greensheet (Dallas, Tex.), Vol. 31, No. 316, Ed. 1 Wednesday, February 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: February 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 239, Ed. 1 Friday, June 20, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 239, Ed. 1 Friday, June 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: June 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 29, Ed. 1 Wednesday, February 20, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 29, Ed. 1 Wednesday, February 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: February 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Fort Worth, Tex.), Vol. 32, No. 229, Ed. 1 Thursday, November 20, 2008 (open access)

Greensheet (Fort Worth, Tex.), Vol. 32, No. 229, Ed. 1 Thursday, November 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: November 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 32, No. 227, Ed. 1 Thursday, November 20, 2008 (open access)

The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 32, No. 227, Ed. 1 Thursday, November 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: November 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 39, No. 341, Ed. 1 Wednesday, August 20, 2008 (open access)

Greensheet (Houston, Tex.), Vol. 39, No. 341, Ed. 1 Wednesday, August 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: August 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 31, No. 346, Ed. 1 Thursday, March 20, 2008 (open access)

The Greensheet (Arlington-Grand Prairie, Tex.), Vol. 31, No. 346, Ed. 1 Thursday, March 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: March 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Greensheet (Fort Worth, Tex.), Vol. 31, No. 347, Ed. 1 Thursday, March 20, 2008 (open access)

Greensheet (Fort Worth, Tex.), Vol. 31, No. 347, Ed. 1 Thursday, March 20, 2008

Free weekly newspaper that includes business and classified advertising.
Date: March 20, 2008
Creator: unknown
Object Type: Newspaper
System: The Portal to Texas History
Mini-Conference on the First Microns of the First Wall (open access)

Mini-Conference on the First Microns of the First Wall

Interactions between plasmas and their surrounding materials (plasma facing components) are of great interest to present and future magnetic fusion experiments, and ITER [ITER Physics Basis Editors, ITER Physics Exper Group Chairs, ITER Joint Central Team, and Physics Inte gration Unit, Nucl. Fusion 39, 2137 (1999)] in particular. This interest is the result of concerns with the survivability of these materials, as well as the impact of these interactions back on the plasma. These interactions begin on the surface, but can have consequences a few microns into the material.This mini-conference on these "first microns" was designed to bring to the Division of Plasma Physics Meeting experts on these topics who would otherwise not attend. At the same time, the mini-conference was intended to expose the broader fusion community to these issues. The mini-conference covered in three, half-day sessions the topics of lithium coatings and surfaces, mixed materials characteristics, and issues associated with graphite.
Date: March 20, 2008
Creator: D.P. Stotler, T.D. Rognlien and S.I. Krasheninnikov
Object Type: Report
System: The UNT Digital Library
Grays River Watershed Restoration Status Report 2007, May 1, 2007 - October 30, 2008. (open access)

Grays River Watershed Restoration Status Report 2007, May 1, 2007 - October 30, 2008.

The Bonneville Power Administration (BPA) Project 2003-013-00, 'Grays River Watershed Restoration', began in FY04 and continues into FY09. This status report is intended to summarize accomplishments during the period 1 May 2007 through 30 October 2008. Accomplishments are summarized by Work Elements, as detailed in the Statement of Work (see BPA's project management database PISCES). The Pacific Northwest National Laboratory (PNNL) is collaborating with the Columbia River Estuary Task Force (CREST) on implementation of the Grays River Restoration Project. The Grays River is vitally important to the recovery of Lower Columbia River (LCR) chum salmon because it currently has the most viable population remaining in the LCR region. The Grays River watershed is also important to the recovery of salmon and steelhead in the LCR ecosystem. Today, numbers of naturally spawning salmon and steelhead have declined to levels far below historical numbers because of habitat limiting factors that include but are not limited to the lack of habitat connectivity, diversity, channel stability, riparian function and altered stream flow conditions. The objective of this project is to restore habitat-forming processes to enhance salmon and steelhead populations in the Grays River, following recommendations developed during the FY04-06 BPA-sponsored Grays River Watershed Assessment …
Date: October 20, 2008
Creator: Hanrahan, Tim
Object Type: Report
System: The UNT Digital Library
Magnetic Diagnostics for the Lithium Tokamak eXperiment (open access)

Magnetic Diagnostics for the Lithium Tokamak eXperiment

The Lithium Tokamak eXperiment (LTX) is a spherical tokamak with R0 = 0.4m, a = 0.26m, BTF ∼ 3.4kG, IP ∼ 400kA, and pulse length ∼ 0.25s. The focus of LTX is to investigate the novel, low-recycling Lithium Wall operating regime for magnetically confined plasmas. This regime is reached by placing an in-vessel shell conformal to the plasma last closed flux surface. The shell is heated and then coated with liquid lithium. An extensive array of magnetic diagnostics is available to characterize the experiment, including 80 Mirnov coils (single and double-axis, internal and external to the shell), 34 flux loops, 3 Rogowskii coils, and a diamagnetic loop. Diagnostics are specifically located to account for the presence of a secondary conducting surface and engineered to withstand both high temperatures and incidental contact with liquid lithium. The diagnostic set is therefore fabricated from robust materials with heat and lithium resistance and is designed for electrical isolation from the shell and to provide the data required for highly constrained equilibrium reconstructions.
Date: June 20, 2008
Creator: L. Berzak, R. Kaita, T. Kozub, R. Majeski, and L. Zakharov
Object Type: Report
System: The UNT Digital Library
Lightning Arrestor Connectors Production Readiness (open access)

Lightning Arrestor Connectors Production Readiness

The Lightning Arrestor Connector (LAC), part “M”, presented opportunities to improve the processes used to fabricate LACs. The A## LACs were the first production LACs produced at the KCP, after the product was transferred from Pinnellas. The new LAC relied on the lessons learned from the A## LACs; however, additional improvements were needed to meet the required budget, yield, and schedule requirements. Improvement projects completed since 2001 include Hermetic Connector Sealing Improvement, Contact Assembly molding Improvement, development of a second vendor for LAC shells, general process improvement, tooling improvement, reduction of the LAC production cycle time, and documention of the LAC granule fabrication process. This report summarizes the accomplishments achieved in improving the LAC Production Readiness.
Date: October 20, 2008
Creator: Marten, Steve; Linder, Kim; Emmons, Jim; Gomez, Antonio; Hasam, Dawud & Maurer, Michelle
Object Type: Report
System: The UNT Digital Library
Interfacial Structures of Acidic and Basic Aqueous Solutions (open access)

Interfacial Structures of Acidic and Basic Aqueous Solutions

Phase-sensitive sum-frequency vibrational spectroscopy was used to study water/vapor interfaces of HCl, HI, and NaOH solutions. The measured imaginary part of the surface spectral responses provided direct characterization of OH stretch vibrations and information about net polar orientations of water species contributing to different regions of the spectrum. We found clear evidence that hydronium ions prefer to emerge at interfaces. Their OH stretches contribute to the 'ice-like' band in the spectrum. Their charges create a positive surface field that tends to reorient water molecules more loosely bonded to the topmost water layer with oxygen toward the interface, and thus enhances significantly the 'liquid-like' band in the spectrum. Iodine ions in solution also like to appear at the interface and alter the positive surface field by forming a narrow double-charge layer with hydronium ions. In NaOH solution, the observed weak change of the 'liquid-like' band and disappearance of the 'ice-like' band in the spectrum indicates that OH{sup -} ions must also have excess at the interface. How they are incorporated in the interfacial water structure is however not clear.
Date: October 20, 2008
Creator: Tian, C.; Ji, N.; Waychunas, G. & Shen, Y.R.
Object Type: Article
System: The UNT Digital Library
Response to "Comment on ' A New Derivation of the Plasma Susceptibility Tensor for a Hot Magnetized Plasma Without Infinite Sums of Products of Bessel Functions' (open access)

Response to "Comment on ' A New Derivation of the Plasma Susceptibility Tensor for a Hot Magnetized Plasma Without Infinite Sums of Products of Bessel Functions'

We welcome the Comment by Lerche et al on our recent paper titled "A new derivation of the plasma susceptibility tensor for a hot magnetized plasma without infinite sums of products of Bessel functions." The Comment brings up additional historical facts about previous research on the infinite sums of products of Bessel functions appearing in the plasma susceptibility.
Date: February 20, 2008
Creator: Hong Qin, Cynthia K. Phillips, and Ronald C. Davidson
Object Type: Report
System: The UNT Digital Library
Cross-Field Current Instabilities in Thin Ionization Layers and the Enhanced Aurora (open access)

Cross-Field Current Instabilities in Thin Ionization Layers and the Enhanced Aurora

Nearly half of the time, auroral displays exhibit thin, bright layers known as \enhanced aurora." There is a substantial body of evidence that connects these displays with thin, dense, heavy ion layers in the E-region. Based on the spectral characteristics of the enhanced layers, it is believed that they result when wave-particle interaction heats ambient electrons to energies at or just above the 17 eV ionization energy of N2. While there are several possible instabilities that could produce suprathermal electrons in thin layers, there has been no clear theoretical investigation which examines in detail how wave instabilities in the thin ionization layers could develop and produce the suprathermal electrons. We examine instabilities which would occur in thin, dense, heavy ion layers using extensive analytical analysis combined with particle simulations. We analyze a cross field current instability that is found to be strongly unstable in the heavy ion layers. Electrostatic simulations show that substantial heating of the ambient electrons occurs with energization at or above the N2 ionization energy.
Date: May 20, 2008
Creator: Okuda, Jay R. Johnson and Hideo
Object Type: Report
System: The UNT Digital Library
Preservation of iron(II) by carbon-rich matrices in a hydrothermal plume (open access)

Preservation of iron(II) by carbon-rich matrices in a hydrothermal plume

Hydrothermal venting associated with mid-ocean ridge volcanism is globally widespread. This venting is responsible for a dissolved iron flux to the ocean that is approximately equal to that associated with continental riverine runoff. For hydrothermal fluxes, it has long been assumed that most of the iron entering the oceans is precipitated in inorganic forms. However, the possibility of globally significant fluxes of iron escaping these mass precipitation events and entering open-ocean cycles is now being debated, and two recent studies suggest that dissolved organic ligands might influence the fate of hydrothermally vented metals. Here we present spectromicroscopic measurements of iron and carbon in hydrothermal plume particles at the East Pacific Rise mid-ocean ridge. We show that organic carbon-rich matrices, containing evenly dispersed iron(II)-rich materials, are pervasive in hydrothermal plume particles. The absence of discrete iron(II) particles suggests that the carbon and iron associate through sorption or complexation. We suggest that these carbon matrices stabilize iron(II) released from hydrothermal vents in the region, preventing its oxidation and/or precipitation as insoluble minerals. Our findings have implications for deep-sea biogeochemical cycling of iron, a widely recognized limiting nutrient in the oceans.
Date: September 20, 2008
Creator: Toner, Brandy M.; Fakra, Sirine C.; Manganini, Steven J.; Santelli, Cara M.; Marcus, Matthew A.; Moffett, James W. et al.
Object Type: Article
System: The UNT Digital Library
CMM Technology (open access)

CMM Technology

This project addressed coordinate measuring machine (CMM) technology and model-based engineering. CMM data analysis and delivery were enhanced through the addition of several machine types to the inspection summary program. CMM hardware and software improvements were made with the purchases of calibration and setup equipment and new model-based software for the creation of inspection programs. Kansas City Plant (KCP) personnel contributed to and influenced the development of dimensional metrology standards. Model-based engineering capabilities were expanded through the development of software for the tolerance analysis of piece parts and for the creation of model-based CMM inspection programs and inspection plans and through the purchase of off-the-shelf software for the tolerance analysis of mechanical assemblies. An obsolete database application used to track jobs in Precision Measurement was replaced by a web-based application with improved query and reporting capabilities. A potential project to address the transformation of the dimensional metrology enterprise at the Kansas City Plant was identified.
Date: October 20, 2008
Creator: Ward, Robert C.
Object Type: Report
System: The UNT Digital Library
Mineral-Surfactant Interactions for Minimum Reagents Precipitation and Adsorption for Improved Oil Recovery (open access)

Mineral-Surfactant Interactions for Minimum Reagents Precipitation and Adsorption for Improved Oil Recovery

Chemical EOR can be an effective method for increasing oil recovery and reducing the amount of produced water; however, reservoir fluids are chemically complex and may react adversely to the polymers and surfactants injected into the reservoir. While a major goal is to alter rock wettability and interfacial tension between oil and water, rock-fluid and fluid-fluid interactions must be understood and controlled to minimize reagent loss, maximize recovery and mitigate costly failures. The overall objective of this project was to elucidate the mechanisms of interactions between polymers/surfactants and the mineral surfaces responsible for determining the chemical loss due to adsorption and precipitation in EOR processes. The role of dissolved inorganic species that are dependent on the mineralogy is investigated with respect to their effects on adsorption. Adsorption, wettability and interfacial tension are studied with the aim to control chemical losses, the ultimate goal being to devise schemes to develop guidelines for surfactant and polymer selection in EOR. The adsorption behavior of mixed polymer/surfactant and surfactant/surfactant systems on typical reservoir minerals (quartz, alumina, calcite, dolomite, kaolinite, gypsum, pyrite, etc.) was correlated to their molecular structures, intermolecular interactions and the solution conditions such as pH and/or salinity. Predictive models as well as …
Date: September 20, 2008
Creator: Somasundaran, P.
Object Type: Report
System: The UNT Digital Library
EnergyPlus Run Time Analysis (open access)

EnergyPlus Run Time Analysis

EnergyPlus is a new generation building performance simulation program offering many new modeling capabilities and more accurate performance calculations integrating building components in sub-hourly time steps. However, EnergyPlus runs much slower than the current generation simulation programs. This has become a major barrier to its widespread adoption by the industry. This paper analyzed EnergyPlus run time from comprehensive perspectives to identify key issues and challenges of speeding up EnergyPlus: studying the historical trends of EnergyPlus run time based on the advancement of computers and code improvements to EnergyPlus, comparing EnergyPlus with DOE-2 to understand and quantify the run time differences, identifying key simulation settings and model features that have significant impacts on run time, and performing code profiling to identify which EnergyPlus subroutines consume the most amount of run time. This paper provides recommendations to improve EnergyPlus run time from the modeler?s perspective and adequate computing platforms. Suggestions of software code and architecture changes to improve EnergyPlus run time based on the code profiling results are also discussed.
Date: September 20, 2008
Creator: Hong, Tianzhen; Buhl, Fred & Haves, Philip
Object Type: Report
System: The UNT Digital Library