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The Greensheet (Houston, Tex.), Vol. 40, No. 449, Ed. 1 Wednesday, October 21, 2009
Free weekly newspaper that includes business and classified advertising.
Date:
October 21, 2009
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Neutron Detector Gamma Insensitivity Criteria
The shortage of 3He has triggered the search for an effective alternative neutron detection technology for radiation portal monitor applications. Any new detection technology must satisfy two basic criteria: 1) it must meet the neutron detection efficiency requirement, and 2) it must be insensitive to gamma ray interference at a prescribed level, while still meeting the neutron detection requirement. It is the purpose of this document to define this latter criterion.
Date:
October 21, 2009
Creator:
Kouzes, Richard T.; Ely, James H.; Lintereur, Azaree T. & Stephens, Daniel L.
Object Type:
Report
System:
The UNT Digital Library
EMSL Quarterly Highlights Report: FY09, 4th Quarter
This document describes the science, accomplishments, and publications that occurred during the fourth quarter of Fiscal Year 2009 at EMSL.
Date:
October 21, 2009
Creator:
Showalter, Mary Ann; Manke, Kristin L.; Kathmann, Loel E. & Wiley, Julie G.
Object Type:
Report
System:
The UNT Digital Library
Europium-doped barium bromide iodide
Single crystals of Ba0.96Eu0.04BrI (barium europium bromide iodide) were grown by the Bridgman technique. The title compound adopts the ordered PbCl2 structure [Braekken (1932). Z. Kristallogr. 83, 222-282]. All atoms occupy the fourfold special positions (4c, site symmetry m) of the space group Pnma with a statistical distribution of Ba and Eu. They lie on the mirror planes, perpendicular to the b axis at y = +-0.25. Each cation is coordinated by nine anions in a tricapped trigonal prismatic arrangement.
Date:
October 21, 2009
Creator:
Gundiah, Gautam; Hanrahan, Stephen M.; Hollander, Fredrick J. & Bourret-Courchesne, Edith D.
Object Type:
Article
System:
The UNT Digital Library
Characteristics of Energy Transport of Li-conditioned and non-Li-conditioned Plasmas in the National Spherical Torus Experiment (NSTX)
The transport properties of NSTX plasmas obtained during the 2008 experimental cam- paign have been studied and are reported here. Transport trends and dependences have been isolated, and it is found that both electron and ion energy transport coefficients have strong dependences on local values of nΔT, which in turn is strongly dependent on local current density profile. Without identifying this dependence, it is difficult to identify others, such as the dependence of transport coefficients on Bp (or q), Ip and Pheat. In addition, a comparison between discharges with and without Lithium wall conditioning has been made. While the trends in the two sets of data are similar, the thermal transport loss, especially in the electron channel, is found to strongly depend on the amount of Lithium deposited, decreasing by up to 50% of its no-Lithium value.
Date:
October 21, 2009
Creator:
S. Ding, S.M. Kaye, R.E. Bell, R. Kaita, H. Kugel, B.P. LeBlanc, S. Paul, B. Wan
Object Type:
Report
System:
The UNT Digital Library
Mechanical Devices Readiness FY04.0402.3
This project funded production process and tooling improvements to meet and sustain rate production for the W76-1 mechanism assemblies. Techniques were developed to allow evaluation and disposition of sealed stronglinks that resulted in prevention of the scrapping of numerous stronglinks and firesets. Improved processes and tooling allowed D-Test rates to be reduced in favor of E-Test, thus saving millions of dollars over the life of the program. Future system mechanisms will likely be smaller with tighter toleranced parts that will require improved inspection equipment and techniques. During the latter phase of this project, a method of improving inspection was developed that will have benefits for existing and future system mechanical assemblies.
Date:
October 21, 2008
Creator:
Fitzgerald, John M.
Object Type:
Report
System:
The UNT Digital Library
Nondestructive Characterization of Aged Components
It is known that high energy radiation can have numerous effects on materials. In metals and alloys, the effects include, but may not be limited to, mechanical property changes, physical property changes, compositional changes, phase changes, and dimensional changes. Metals and alloys which undergo high energy self-irradiation are also susceptible to these changes. One of the greatest concerns with irradiation of materials is the phenomenon of void swelling which has been observed in a wide variety of metals and alloys. Irradiation causes the formation of a high concentration point defects and microclusters of vacancies and interstitials. With the assistance of an inert atom such as helium, the vacancy-type defects can coalesce to form a stable bubble. This bubble will continue to grow through the net absorption of more vacancy-type defects and helium atoms, and upon reaching a certain critical size, the bubble will begin to grow at an accelerated rate without the assistance of inert atom absorption. The bubble is then said to be an unstably growing void. Depending on the alloy system and environment, swelling values can reach in excess of 50% !V/Vo where Vo is the initial volume of the material. Along with dimensional changes resulting from the …
Date:
October 21, 2003
Creator:
Panetta, Paul D.; Toloczko, Mychailo B.; Garner, Francis A. & Balachov, Iouri I.
Object Type:
Report
System:
The UNT Digital Library
The Savannah River National Laboratory's Response to the Graniteville, SC Train Accident
The Savannah River National Laboratory's (SRNL) Weather INformation and Display (WIND) System was used to provide meteorological and atmospheric modeling/consequence assessment support to state and local agencies following the collision of two Norfolk Southern freight trains on the morning of January 6, 2005. This collision resulted in the release of several toxic chemicals to the environment, including chlorine. The dense and highly toxic cloud of chlorine gas that formed in the vicinity of the accident was responsible for nine fatalities and injuries to more than five hundred others. Transport model results depicting the forecast path of the ongoing release were made available to emergency managers in the county's Unified Command Center shortly after SRNL received a request for assistance. Support continued over the ensuing two days of the active response. The SRNL also provided weather briefings and transport/consequence assessment model results to responders from South Carolina Department of Health and Environmental control (SCDHEC), the Savannah River Site's (SRS) Emergency Operations Center (EOC), DOE Headquarters, and hazmat teams dispatched from the SRS.
Date:
October 21, 2005
Creator:
Hunter, C. H.; Parker, M. J.; Buckley, R. L.; Weber, A. H. & Addis, R. P.
Object Type:
Article
System:
The UNT Digital Library
High-Pressure Tailored Compression: Controlled Thermodynamic Paths
We have recently carried out novel and exploratory dynamic experiments where the sample follows a prescribed thermodynamic path. In typical dynamic compression experiments, the samples are thermodynamically limited to the principal Hugoniot or quasi-isentrope. With recent developments in the functionally graded material impactor, we can prescribe and shape the applied pressure profile with similarly-shaped, non-monotonic impedance profile in the impactor. Previously inaccessible thermodynamic states beyond the quasi-isentropes and Hugoniot can now be reached in dynamic experiments with these impactors. In the light gas-gun experiments on copper reported here, we recorded the particle velocities of the Cu-LiF interfaces and employed hydrodynamic simulations to relate them to the thermodynamic phase diagram. Peak pressures for these experiments were on the order of megabars, and the time-scales ranged from nanoseconds to several microseconds. The strain rates of the quasi-isentropic experiments are approximately 10{sup 4} s{sup -1} to 10{sup 6} s{sup -1} in samples with thicknesses up to 5 mm. Though developed at a light-gas gun facility, such shaped pressure-profiles are also feasible in principle with laser ablation or magnetic driven compression techniques allowing for new directions to be taken in high pressure physics.
Date:
October 21, 2005
Creator:
Nguyen, J. H.; Orlikowski, D.; Streitz, F. H.; Moriarty, J. A. & Holmes, N. C.
Object Type:
Article
System:
The UNT Digital Library
Polk County Enterprise (Livingston, Tex.), Vol. 125, No. 82, Ed. 1 Sunday, October 21, 2007
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
October 21, 2007
Creator:
Reddell, Valerie
Object Type:
Newspaper
System:
The Portal to Texas History
Timpson & Tenaha News (Timpson, Tex.), Vol. 19, No. 41, Ed. 1 Thursday, October 21, 2004
Weekly newspaper from Timpson, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 2004
Creator:
Alexander, Nancy
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 114, No. 42, Ed. 1 Wednesday, October 21, 2009
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 2009
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 119, No. 84, Ed. 1 Sunday, October 21, 2001
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
October 21, 2001
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
Polk County Enterprise (Livingston, Tex.), Vol. 122, No. 85, Ed. 1 Thursday, October 21, 2004
Semi-weekly newspaper from Livingston, Texas that includes local, state and national news along with advertising.
Date:
October 21, 2004
Creator:
White, Barbara
Object Type:
Newspaper
System:
The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 110, No. 42, Ed. 1 Friday, October 21, 2005
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 2005
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
A SQUID-based microwave cavity search for dark-matter axions
Axions in the {mu}eV mass range are a plausible cold dark matter candidate and may be detected by their conversion into microwave photons in a resonant cavity immersed in a static magnetic field. The first result from such an axion search using a superconducting first-stage amplifier (SQUID) is reported. The SQUID amplifier, replacing a conventional GaAs field-effect transistor amplifier, successfully reached axion-photon coupling sensitivity in the band set by present axion models and sets the stage for a definitive axion search utilizing near quantum-limited SQUID amplifiers.
Date:
October 21, 2009
Creator:
Asztalos, S. J.; Carosi, G.; Hagmann, C.; Kinion, D.; van Bibber, K.; Hotz, M. et al.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 81, No. 327, Ed. 1 Tuesday, October 21, 2003
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 2003
Creator:
Cash, Wanda Garner
Object Type:
Newspaper
System:
The Portal to Texas History
The Odem-Edroy Times (Odem, Tex.), Vol. 58, No. 42, Ed. 1 Thursday, October 21, 2004
Weekly newspaper from Odem, Texas that includes local, state, and national news along with advertising.
Date:
October 21, 2004
Creator:
Tracy, Jimmy
Object Type:
Newspaper
System:
The Portal to Texas History
The Rattler (San Antonio, Tex.), Vol. 97, No. 3, Ed. 1 Wednesday, October 21, 2009
Student newspaper from St. Mary's University in San Antonio, Texas that includes campus news along with advertising.
Date:
October 21, 2009
Creator:
St. Mary's University (San Antonio, Tex.)
Object Type:
Newspaper
System:
The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 2, Ed. 1 Sunday, October 21, 2001
Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 21, 2001
Creator:
Dow, M. Gene & Fisher, David
Object Type:
Newspaper
System:
The Portal to Texas History
Hondo Anvil Herald (Hondo, Tex.), Vol. 118, No. 43, Ed. 1 Thursday, October 21, 2004
Weekly newspaper from Hondo, Texas that includes local, state, and national news along with extensive advertising.
Date:
October 21, 2004
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Reactive Multiphase Behavior of CO2 in Saline Aquifers Beneath the Colorado Plateau
The six coal fired power plants located in the Colorado Plateau and southern Rocky Mountain region of the U.S. produce 100 million tons of CO{sub 2} per year. Thick sequences of colocated sedimentary rocks represent potential sites for sequestration of the CO{sub 2}. Field and laboratory investigations of naturally occurring CO{sub 2}-reservoirs are being conducted to determine the characteristics of potential seal and reservoir units and the extent of the interactions that occur between the host rocks and the CO{sub 2} charged fluids. The results are being incorporated into a series of two-dimensional numerical models that represent the major chemical and physical processes induced by injection. During reporting period covered here (July 1 to September 30, 2003), the main achievements were: Preparation for Project Review visit in Salt Lake City by new Project Manager; Submittal of two scientific papers to a special issue of ''Chemical Geology'' on CO{sub 2} sequestration; Set-up of website reporting results of this project; and Publication of summary article in Utah Geological Survey ''Survey Notes'' (circulation of 3000).
Date:
October 21, 2003
Creator:
Allis, R. G.; Moore, J. & White, S.
Object Type:
Report
System:
The UNT Digital Library
Particle Tracking Model and Abstraction of Transport Processes
The purpose of this report is to document the abstraction model being used in total system performance assessment (TSPA) model calculations for radionuclide transport in the unsaturated zone (UZ). The UZ transport abstraction model uses the particle-tracking method that is incorporated into the finite element heat and mass model (FEHM) computer code (Zyvoloski et al. 1997 [DIRS 100615]) to simulate radionuclide transport in the UZ. This report outlines the assumptions, design, and testing of a model for calculating radionuclide transport in the UZ at Yucca Mountain. In addition, methods for determining and inputting transport parameters are outlined for use in the TSPA for license application (LA) analyses. Process-level transport model calculations are documented in another report for the UZ (BSC 2004 [DIRS 164500]). Three-dimensional, dual-permeability flow fields generated to characterize UZ flow (documented by BSC 2004 [DIRS 169861]; DTN: LB03023DSSCP9I.001 [DIRS 163044]) are converted to make them compatible with the FEHM code for use in this abstraction model. This report establishes the numerical method and demonstrates the use of the model that is intended to represent UZ transport in the TSPA-LA. Capability of the UZ barrier for retarding the transport is demonstrated in this report, and by the underlying process …
Date:
October 21, 2004
Creator:
Robinson, B.
Object Type:
Report
System:
The UNT Digital Library
CLAD DEGRADATION - FEPS SCREENING ARGUMENTS
The purpose of this report is to evaluate and document the screening of the clad degradation features, events, and processes (FEPs) with respect to modeling used to support the Total System Performance Assessment-License Application (TSPA-LA). This report also addresses the effect of certain FEPs on both the cladding and the commercial spent nuclear fuel (CSNF), DOE-owned spent nuclear fuel (DSNF), and defense high-level waste (DHLW) waste forms, as appropriate to address the effects on multiple materials and both components (FEPs 2.1.09.09.0A, 2.1.09.11.0A, 2.1.11.05.0A, 2.1.12.02.0A, and 2.1.12.03.0A). These FEPs are expected to affect the repository performance during the postclosure regulatory period of 10,000 years after permanent closure. Table 1-1 provides the list of cladding FEPs, including their screening decisions (include or exclude). The primary purpose of this report is to identify and document the analysis, screening decision, and TSPA-LA disposition (for included FEPs) or screening argument (for excluded FEPs) for these FEPs related to clad degradation. In some cases, where a FEP covers multiple technical areas and is shared with other FEP reports, this report may provide only a partial technical basis for the screening of the FEP. The full technical basis for shared FEPs is addressed collectively by the sharing …
Date:
October 21, 2004
Creator:
Schreiner, R.
Object Type:
Report
System:
The UNT Digital Library