44 Matching Results

Results open in a new window/tab.

[Photograph 2012.201.B0140.0292]

Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Bob Colon, sports writer."
Date: August 21, 2002
Creator: Hoke, Doug
Object Type: Photograph
System: The Gateway to Oklahoma History
Cherokeean/Herald (Rusk, Tex.), Vol. 153, No. 26, Ed. 1 Wednesday, August 21, 2002 (open access)

Cherokeean/Herald (Rusk, Tex.), Vol. 153, No. 26, Ed. 1 Wednesday, August 21, 2002

Weekly newspaper from Rusk, Texas that includes local, state and national news along with extensive advertising.
Date: August 21, 2002
Creator: Whitehead, Marie
Object Type: Newspaper
System: The Portal to Texas History
The Clifton Record (Clifton, Tex.), Vol. 107, No. 67, Ed. 1 Wednesday, August 21, 2002 (open access)

The Clifton Record (Clifton, Tex.), Vol. 107, No. 67, Ed. 1 Wednesday, August 21, 2002

Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Smith, W. Leon
Object Type: Newspaper
System: The Portal to Texas History
Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 89, Ed. 1 Wednesday, August 21, 2002 (open access)

Seminole Sentinel (Seminole, Tex.), Vol. 95, No. 89, Ed. 1 Wednesday, August 21, 2002

Semi-weekly newspaper from Seminole, Texas that includes local, state, and national news along with extensive advertising.
Date: August 21, 2002
Creator: Fisher, David
Object Type: Newspaper
System: The Portal to Texas History
Modeling of Neoclassical Tearing Mode Stability for Generalized Toroidal Geometry (open access)

Modeling of Neoclassical Tearing Mode Stability for Generalized Toroidal Geometry

Neoclassical tearing modes (NTMs) can lead to disruption and loss of confinement. Previous analysis of these modes used large aspect ratio, low beta (plasma pressure/magnetic pressure) approximations to determine the effect of NTMs on tokamak plasmas. A more accurate tool is needed to predict the onset of these instabilities. As a follow-up to recent theoretical work, a code has been written which computes the tearing mode island growth rate for arbitrary tokamak geometry. It calls PEST-3 [A. Pletzer et al., J. Comput. Phys. 115, 530 (1994)] to compute delta prime, the resistive magnetohydrodynamic (MHD) matching parameter. The code also calls the FLUXGRID routines in NIMROD [A.H. Glasser et al., Plasma Phys. Controlled Fusion 41, A747 (1999)] for Dnc, DI and DR [C.C. Hegna, Phys. Plasmas 6, 3980 (1999); A.H. Glasser et al., Phys. Fluids 18, 875 (1975)], which are the bootstrap current driven term and the ideal and resistive interchange mode criterion, respectively. In addition to these components, the NIMROD routines calculate alphas-H, a new correction to the Pfirsch-Schlter term. Finite parallel transport effects were added and a National Spherical Torus Experiment (NSTX) [M. Ono et al., Nucl. Fusion 40, 557 (2000)] equilibrium was analyzed. Another program takes the output …
Date: August 21, 2002
Creator: Rosenberg, A. L.; Gates, D. A.; Pletzer, A.; Menard, J. E.; Kruger, S. E.; Hegna, C. C. et al.
Object Type: Report
System: The UNT Digital Library
The Physics of transmutation systems : system capabilities and performances. (open access)

The Physics of transmutation systems : system capabilities and performances.

This document is complementary to a document produced by Prof. Salvatores on ''The Physics of Transmutation in Critical or Subcritical Reactors and the Impact on the Fuel Cycle''. In that document, Salvatores describes the fundamental of transmutation, through basic physics properties and general parametric studies. In the present document we try to go one step further towards practical implementation (while recognizing that the practical issues such as technology development and demonstration, and economics, can only be mentioned in a very superficial manner). Section 1 briefly overviews the possible objectives of transmutation systems, and links these different objectives to possible technological paths. It also describes the overall constraints which have to be considered when developing and implementing transmutation systems. In section 2 we briefly overview the technological constraints which need to be accounted for when designing transmutation systems. In section 3 we attempt to provide a simplified classification of transmutation systems in order to clarify later comparisons. It compares heterogeneous and homogeneous recycle strategies, and single and multi-tier systems. Section 4 presents case analyses for assessing the transmutation performance of various individual systems, starting with LWR's (1. generic results; 2. multirecycle of plutonium; 3. an alternative: transmutation based on a Thorium …
Date: August 21, 2002
Creator: Finck, P. J.
Object Type: Article
System: The UNT Digital Library
Fabrication of biaxially textured templates for coated conductors by inclined substrate deposition. (open access)

Fabrication of biaxially textured templates for coated conductors by inclined substrate deposition.

YBCO-coated conductors will enable the development of smaller, lighter, more-efficient electric power devices that can be operated at temperatures approaching that of liquid nitrogen. The critical current density (J{sub c}) of YBCO films on flexible metallic substrates has been significantly improved by epitaxially growing the YBCO on biaxially textured template films. Inclined substrate deposition (ISD) offers the potential for rapidly producing high-quality biaxially textured buffer layers that are suitable for YBCO-coated conductors. Using the ISD method, we have grown biaxially textured MgO films at deposition rates of 20-100 {angstrom}/sec. Electron microscopy of the ISD-MgO films revealed columnar grains topped off by MgO (002) planes, and X-ray pole figure analysis showed that the (002) planes are tilted with respect to the substrate normal, giving ISD-MgO films a roof-tile surface morphology. A small phi-scan full-width at half maximum of {approx}10{sup o} was observed on ISD-MgO films deposited with a substrate inclination of 55{sup o}. YBCO films were grown on ISD-MgO buffered Hastelloy substrates by pulsed laser deposition. A sample that was 0.42 {micro}m x 0.45 mm x 1 cm gave a transport J{sub c} of {approx}0.34 MA/cm{sup 2} at 77 K in self-field. Details of ISD-MgO film fabrication and characterization, as well …
Date: August 21, 2002
Creator: Dorris, S. E.; Ma, B.; Li, M.; Fisher, B. L.; Koritala, R. E.; Erck, R. et al.
Object Type: Article
System: The UNT Digital Library
Use of superconducting bearings to measure the polarization of the cosmic microwave background radiation. (open access)

Use of superconducting bearings to measure the polarization of the cosmic microwave background radiation.

Measurements of the polarization of the cosmic microwave background (CMB) radiation are expected to significantly increase our understanding of the early universe. We present a design for a CMB polarimeter in which a cryogenically cooled half wave plate rotates by means of a high-temperature superconducting (HTS) bearing. The design is optimized for implementation in MAXIPOL, a balloon-borne CMB polarimeter. A prototype bearing, consisting of commercially available ring-shaped permanent magnet and an array of YBCO bulk HTS material, has been constructed. We report on measurements of the coefficient of friction as a function of temperature between 15 and 80 K, of rotation frequency between 0.3 and 3.5 Hz, of levitation distance between 6 and 10 mm, and of ambient pressure between 1 and 10{sup -7} torr. The low rotational drag of the HTS bearing allows rotations for long periods of time with minimal input power and negligible wear and tear thus making this technology suitable for a future satellite mission.
Date: August 21, 2002
Creator: Hanany, S.; Matsumura, T.; Johnson, B.; Jones, T.; Hull, J. R. & Ma, K. B.
Object Type: Article
System: The UNT Digital Library
Performance Management Plan (open access)

Performance Management Plan

This Performance Management Plan describes the approach for accelerating cleanup activities of U.S. Department of Energy (DOE), National Nuclear Security Administration Nevada Operations Office (NNSA/NV) Environmental Management (EM) Program. This approach accelerates the reduction of risk at NNSA/NV sites while performing the work responsibly, effectively, and more efficiently. In May 2002, NNSA/NV EM and the Nevada Division of Environmental Protection signed a Letter of Intent formalizing an agreement to pursue accelerated risk reduction and cleanup for activities within the State of Nevada. This Performance Management Plan provides the strategic direction for implementing the Letter of Intent.
Date: August 21, 2002
Creator: IT Corporation, Las Vegas, NV
Object Type: Report
System: The UNT Digital Library
Crucible-Scale Active Vitrification Testing of a Hanford Envelope C Tank 241-AN-102 (open access)

Crucible-Scale Active Vitrification Testing of a Hanford Envelope C Tank 241-AN-102

The objectives of this work were to characterize and performance test the vitrified product and to provide RPP-WTP personnel with the results from these studies. This is the final report for the small scale active vitrification testing on the AN-102 sample.
Date: August 21, 2002
Creator: Crawford, C.L.
Object Type: Report
System: The UNT Digital Library
Dense cermet membranes for hydrogen separation. (open access)

Dense cermet membranes for hydrogen separation.

Argonne National Laboratory (ANL) and the National Energy Technology Laboratory (NETL) are developing dense ceramic-based membranes for separating hydrogen from the products of coal gasification and other partial-oxidation streams. Hydrogen separation with these membranes is nongalvanic, i.e., it does not use electrodes or an external power supply to drive the separation, and hydrogen selectivity is nearly 100% because the membranes contain no interconnected porosity. Novel cermet (i.e., ceramic-metal composite) membranes have been developed to separate hydrogen from gas mixtures at high temperature and pressure. Hydrogen permeation rates have been measured in the temperature range of 600-900 C for three classes of cermet membranes (ANL-1, -2, and -3). ANL-3a membranes, with a thickness of 40 {micro}m, provide the highest hydrogen flux ({approx}20 cm{sup 3} [STP]/min-cm 2 at 900 C with 100% H{sub 2} as the feed gas). The effects of membrane thickness and hydrogen partial pressure on hydrogen flux indicate that the bulk diffusion of hydrogen is rate-limiting in ANL-3 membranes with a thickness >40 {micro}m. ANL-3b membranes were tested in simulated syngas at several temperatures, and no performance degradation was observed for times that approached {approx}200 h; this observation suggests that the membrane is chemically stable and may be suitable …
Date: August 21, 2002
Creator: Dorris, S. E.; Lee, T. H.; Wang, S.; Picciolo, J. J.; Dusek, J. T.; Balachandran, U. et al.
Object Type: Article
System: The UNT Digital Library
Regulatory Off-Gas Analysis from the Evaporator of Hanford Simulated Waste Spiked with Organic Compounds (open access)

Regulatory Off-Gas Analysis from the Evaporator of Hanford Simulated Waste Spiked with Organic Compounds

After strontium/transuranics removal by precipitation followed by cesium/technetium removal by ion exchange, remaining low activity waste in the Hanford River Protection Project Waste Treatment Plant is to be concentrated by evaporation prior to being mixed with glass formers and vitrified. To provide a technical basis to permit the waste treatment facility, a relatively organic-rich Hanford Tank 241-AN-107 waste simulant was spiked with 14 target volatile, semi-volatile and pesticide compounds, and evaporated under vacuum in a bench-scale natural circulation evaporator fitted with an industrial stack off-gas sampler at the Savannah River Technology Center. An evaporator material balance for the target organics was calculated by combining liquid stream mass and analytical data with off-gas emissions estimates obtained using EPA SW-846 Methods.
Date: August 21, 2002
Creator: Calloway, T.B.
Object Type: Article
System: The UNT Digital Library
ET-based mixed-donor CT salt : [ET/MET/MT](ReO{sub 4}). (open access)

ET-based mixed-donor CT salt : [ET/MET/MT](ReO{sub 4}).

A new charge-transfer(CT) salt of the ET-based mixed-donor, [ET/MET/MT](ReO{sub 4}), has been prepared by the electrocrystallization. This salt has been revealed to be a 1:1 salt by x-ray structure analysis and micro-Raman spectroscopy. EPR measurement gives g = 2.007 and {_}H{sub pp} = 9.18G at 300K. It shows a semiconducting behavior with E{sub g} = 92-110 meV depending on the samples.
Date: August 21, 2002
Creator: Noh, D.-Y.; Han, Y.-K.; Kang, W.; Kang, H. & Geiser, U.
Object Type: Article
System: The UNT Digital Library
The Evolution of the Segregation Behavior of Alloying Elements in a Low-Alloy Steel (open access)

The Evolution of the Segregation Behavior of Alloying Elements in a Low-Alloy Steel

The segregation of alloying and impurity elements to prior austenite grain boundaries (PAGBs) in low-alloy steels controls temper-embrittlement although the precise microchemical and microstructural interactions are, as yet, unclear because of the many variables involved. Competing segregation and de-segregation phenomena are observed. For example, Auger analyses of fracture surfaces indicate that brittle fracture is caused by the segregation of P to the PAGB. The addition of small amounts ({approx} 0.5 wt%) of Mo appears to regard, but not stop, temper-embrittlement, possibly due to Mo{sub 2}C precipitates that form at elevated temperatures causing de-segregation of Mo from the PAGB. The relationship between segregation and temper embrittlement is further complicated in commercial alloys by both the number of segregating elements and the complex, multi-stage heat treatments. Auger analysis pre-selects the most embrittled boundaries and so the complete distribution of segregants across all PAGBs cannot be determined by this technique. Previous work has shown how X-ray mapping (XRM) in a field-emission gun scanning transmission electron microscope (FEG-STEM) offers a more complete view of the distribution of segregants on both non-embrittled and embrittled PAGBs. XRM was used to observe the evolution of the segregation and desegregation of five elements during four successive heat-treatment stages …
Date: August 21, 2002
Creator: Papworth, A.J.; Knorr, D.B. & Williams, D.B.
Object Type: Report
System: The UNT Digital Library
Argonne National Laboratory-east site environmental report for calendar year 2001. (open access)

Argonne National Laboratory-east site environmental report for calendar year 2001.

This report discusses the accomplishments of the environmental protection program at Argonne National Laboratory-East (ANL-E) for calendar year 2001. The status of ANL-E environmental protection activities with respect to the various laws and regulations that govern waste handling and disposal is discussed, along with the progress of environmental corrective actions and restoration projects. To evaluate the effects of ANL-E operations on the environment, samples of environmental media collected on the site, at the site boundary, and off the ANL-E site were analyzed and compared with applicable guidelines and standards. A variety of radionuclides were measured in air, surface water, on-site groundwater, and bottom sediment samples. In addition, chemical constituents in surface water, groundwater, and ANL-E effluent water were analyzed. External penetrating radiation doses were measured, and the potential for radiation exposure to off-site population groups was estimated. Results are interpreted in terms of the origin of the radioactive and chemical substances (i.e., natural, fallout, ANL-E, and other) and are compared with applicable environmental quality standards. A U.S. Department of Energy dose calculation methodology, based on International Commission on Radiological Protection recommendations and the U.S. Environmental Protection Agency's CAP-88 (Clean Air Act Assessment Package-1988) computer code, was used in preparing this …
Date: August 21, 2002
Creator: Golchert, N. W. & Kolzow, R. G.
Object Type: Report
System: The UNT Digital Library
[Email from Mary Matalin to Charles Francis, August 21, 2002] (open access)

[Email from Mary Matalin to Charles Francis, August 21, 2002]

An email from Mary J. Matalin to Charles C. Francis about a meeting she had with Mary Cheney and the money Francis' group, the Republican Unity Coalition, had raised for senatorial campaigns.
Date: August 21, 2002
Creator: Matalin, Mary J.
Object Type: Letter
System: The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 80, No. 268, Ed. 1 Wednesday, August 21, 2002 (open access)

The Baytown Sun (Baytown, Tex.), Vol. 80, No. 268, Ed. 1 Wednesday, August 21, 2002

Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Cash, Wanda Garner
Object Type: Newspaper
System: The Portal to Texas History
[Funeral Program for Earline Eddington, August 21, 2002] (open access)

[Funeral Program for Earline Eddington, August 21, 2002]

Funeral program for Sister Earline Marie Cheeks Eddington, born July 9, 1932 and died August 16, 2002. The funeral was held August 21, 2002 at Friendship Baptist Church, officiated by R. L. Archield. Funeral arrangements were made through Lewis Funeral Home and she was buried in Meadowlawn Memorial Park in San Antonio, Texas.
Date: August 21, 2002
Creator: unknown
Object Type: Pamphlet
System: The Portal to Texas History
Cambodia: Background and U.S. Relations (open access)

Cambodia: Background and U.S. Relations

From Summary: This report provides a background and analysis regarding U.S. policies and interests toward Cambodia, including foreign aid restrictions, trade, the bilateral textile agreement, human trafficking, illegal drugs, and HIV/AIDS.
Date: August 21, 2002
Creator: Sayres, Nicole & Lum, Thomas
Object Type: Report
System: The UNT Digital Library
The Colony Courier-Leader (The Colony, Tex.), Vol. 21, No. 28, Ed. 1 Wednesday, August 21, 2002 (open access)

The Colony Courier-Leader (The Colony, Tex.), Vol. 21, No. 28, Ed. 1 Wednesday, August 21, 2002

Weekly newspaper from The Colony, Texas that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Shafer, Leah
Object Type: Newspaper
System: The Portal to Texas History
The Llano News (Llano, Tex.), Vol. 114, No. 46, Ed. 1 Wednesday, August 21, 2002 (open access)

The Llano News (Llano, Tex.), Vol. 114, No. 46, Ed. 1 Wednesday, August 21, 2002

Weekly newspaper from Llano, Texas that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Stephenson, Jimmy
Object Type: Newspaper
System: The Portal to Texas History
Altus Times (Altus, Okla.), Vol. 104, No. 135, Ed. 1 Wednesday, August 21, 2002 (open access)

Altus Times (Altus, Okla.), Vol. 104, No. 135, Ed. 1 Wednesday, August 21, 2002

Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Bush, Michael
Object Type: Newspaper
System: The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, August 21, 2002 (open access)

The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, August 21, 2002

Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date: August 21, 2002
Creator: Schwind, Jim & Holton, Kathleen
Object Type: Newspaper
System: The Portal to Texas History
[Letter from James W. Phillips to Darris Egger] (open access)

[Letter from James W. Phillips to Darris Egger]

A letter from James W. Phillips to Darris Egger, dated August 21, 2002. The letter reminisces about their days together as students at McMurry and remembers the death of James W. Hunt in the early months of 1934.
Date: August 21, 2002
Creator: Phillips, James W.
Object Type: Letter
System: The Portal to Texas History