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Los Alamos National Laboratory's Hydrogeologic Studies of the Pajarito Plateau: A Synthesis of Hydrogeologic Workplan Activities (1998--2004),
This report was prepared as an account of work sponsored by an agency of the United Staes Government. Neither the Regents of the University of California, the United States Government nor any agency thereof, nor any of their employees make any warranty, express or implied, or assume any legal liability or responsibility for the accuracy, completeness, or usefulness of any information, apparatus, product, or process disclosed, or represent that its use would not infringe privately owned rights.
Date:
December 13, 2005
Creator:
Robinson, B. A.; Collins, K. & Simmons, A. M.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 107, No. 214, Ed. 1 Tuesday, December 13, 2005
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 2005
Creator:
Bush, Michael
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Analysis of D0 -> K+ pi- pi0 Decays: Search for D0-D0bar Mixing, and Measurements of the Doubly Cabibbo-Suppressed Decay Rate and Resonance Contributions
Analyzing D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays, herein are presented the methods and results of a search for D{sup 0}-{bar D}{sup 0} mixing, a measurement of the branching ratio R {equivalent_to} {Lambda}(D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0})/{Lambda}(D{sup 0} {yields} K{sup -}{pi}{sup +}{pi}{sup 0}), and measurements of the contributions from D{sup 0} {yields} K{sup +}{rho}{sup -}, K*{sup +}{pi}{sup -}, K*{sup 0}{pi}{sup 0}; 230.4 fb{sup -1} of data collected from the BABAR detector at the PEP-II collider during 2000-2004 (Runs 1-4) are analyzed. An event-level tagging technique is developed, which facilitates the accurate determination of doubly Cabibbo-suppressed resonance contributions by suppressing background from Cabibbo-favored decays. The branching ratio is measured as R = (0.214 {+-} 0.008 (stat) {+-} 0.008 (syst))%, with (46.1 {+-} 3.3 (stat) {+-} 2.9 (syst))% of D{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} decays proceeding through the channel D{sup 0} {yields} K*{sup +}{pi}{sup -}. The data are consistent with the null-D-mixing hypothesis at a confidence level of 10%, and the expected value of {+-} {radical}(x{sup 2} + y{sup 2}) is measured as -0.013 {+-} 0.010 (stat), indicating negative interference between mixing and doubly Cabibbo-suppressed decay. The expected value of the integrated mixing rate is (x{sup 2} …
Date:
December 13, 2005
Creator:
Wilson, Michael Galante
Object Type:
Report
System:
The UNT Digital Library
Angularly Adaptive P1-Double P0 Flux-Limited Diffusion Solutions of Non-Equilibrium Grey Radiative Transfer Problems
The double spherical harmonics angular approximation in the lowest order, i.e. double P{sub 0} (DP{sub 0}), is developed for the solution of time-dependent non-equilibrium grey radiative transfer problems in planar geometry. Although the DP{sub 0} diffusion approximation is expected to be less accurate than the P{sub 1} diffusion approximation at and near thermodynamic equilibrium, the DP{sub 0} angular approximation can more accurately capture the complicated angular dependence near a non-equilibrium radiation wave front. In addition, the DP{sub 0} approximation should be more accurate in non-equilibrium optically thin regions where the positive and negative angular domains are largely decoupled. We develop an adaptive angular technique that locally uses either the DP{sub 0} or P{sub 1} flux-limited diffusion approximation depending on the degree to which the radiation and material fields are in thermodynamic equilibrium. Numerical results are presented for two test problems due to Su and Olson and to Ganapol and Pomraning for which semi-analytic transport solutions exist. These numerical results demonstrate that the adaptive P{sub 1}-DP{sub 0} diffusion approximation can yield improvements in accuracy over the standard P{sub 1} diffusion approximation, both without and with flux-limiting, for non-equilibrium grey radiative transfer.
Date:
December 13, 2005
Creator:
Brantley, P S
Object Type:
Article
System:
The UNT Digital Library
[Arthur L. Gregg Biography]
A document detailing the achievements of Arthur L. Gregg. It lists his positions on various councils and at several universities. There are also several conferences that he participated in listed at the bottom.
Date:
December 13, 2005
Creator:
University of North Texas. Multicultural Center.
Object Type:
Text
System:
The UNT Digital Library
Base Input
Contains notes and research (NMC13-Base Input) Naval Station Great Lakes, IL.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Boerne Star & Recorder (Boerne, Tex.), Vol. 99, No. 92, Ed. 1 Tuesday, December 13, 2005
Semiweekly newspaper from Boerne, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 2005
Creator:
Cartwright, Brian
Object Type:
Newspaper
System:
The Portal to Texas History
BRAC Analysis-Notes and Research
Contains notes and research (Draft Final Deliberations Slides) Various States-by Syd Carroll of the Joint Cross Service Team.
Date:
December 13, 2005
Creator:
United States. Defense Base Closure and Realignment Commission.
Object Type:
Text
System:
The UNT Digital Library
Brady Standard-Herald and Heart O' Texas News (Brady, Tex.), Ed. 1 Tuesday, December 13, 2005
Semiweekly newspaper from Brady, Texas that includes local, state, and national news along with advertising.
Date:
December 13, 2005
Creator:
Stewart, James E.
Object Type:
Newspaper
System:
The Portal to Texas History
A Calibration to Predict Concentrations of Impurities in Plutonium Oxide by Prompt Gamma Analysis
Prompt gamma (PG) analysis has been used to identify the presence of certain impurities in plutonium oxide, which has been stored in 3013 containers. A regression analysis was used to evaluate the trends between the count rates obtained from PG analysis and the concentration of the impurities in plutonium oxide samples measured by analytical chemistry techniques. The results of the analysis were used to obtain calibration curves, which may be used to predict the concentration of Al, Be, Cl, F, Mg, and Na in the 3013 containers. The scatter observed in the data resulted from several factors including sample geometry, error in sampling for chemical assay, statistical counting error, and intimacy of mixing of impurities and plutonium. Standards prepared by mixing plutonium oxide with CaF{sub 2}, NaCl, and KCl show that intimacy mixing and sampling error have the largest influence on the results. Although these factors are difficult to control, the calibrations are expected to yield semiquantitative results that are sufficient for the purpose of ordering or ranking.
Date:
December 13, 2005
Creator:
Narlesky, J. E.; Kelly, E. J. & Foster, L. A.
Object Type:
Report
System:
The UNT Digital Library
Clustering of Hadronic Showers with a Structural Algorithm
The internal structure of hadronic showers can be resolved in a high-granularity calorimeter. This structure is described in terms of simple components and an algorithm for reconstruction of hadronic clusters using these components is presented. Results from applying this algorithm to simulated hadronic Z-pole events in the SiD concept are discussed.
Date:
December 13, 2005
Creator:
Charles, M. J.
Object Type:
Article
System:
The UNT Digital Library
Contaminant Organic Complexes: Their Structure and Energetics in Surface Decontamination Processes
Siderophores are biological macromolecules (400-2000 Da) released by bacteria in iron limiting situations to sequester Fe from iron oxyhydroxides and silicates in the natural environment. These molecules contain hydroxamate and phenolate functional groups, and exhibit very high affinity for Fe{sup 3+}. While several studies were conducted to understand the behavior of siderophores and their application to the metal sequestration and mineral dissolution, only a few of them have examined the molecular structure of siderophores and their interactions with metals and mineral surfaces in aqueous solutions. Improved understanding of the chemical state of different functional moieties in siderophores can assist in the application of these biological molecules in actinide separation, sequestration and decontamination processes. The focus of our research group is to evaluate the (a) functional group chemistry of selected siderophores and their metal complexes in aqueous solutions, and (b) the nature of siderophore interactions at the mineral-water interfaces. We selected desferrioxamine B (desB), a hydroxamate siderophore, and its small structural analogue, acetohydroxamic acid (aHa), for this investigation. We examined the functional group chemistry of these molecules as a function of pH, and their complexation with aqueous and solid phase Fe(III). For solid phase Fe, we synthesized all naturally occurring Fe(III)-oxyhydroxides …
Date:
December 13, 2005
Creator:
Myneni, Satish C. B.
Object Type:
Report
System:
The UNT Digital Library
Defense Inventory: Army Needs to Strengthen Internal Controls for Items Shipped to Repair Contractors
A letter report issued by the Government Accountability Office with an abstract that begins "GAO has previously reported that the lack of control over inventory shipments increases the Department of Defense's (DOD) vulnerability to undetected loss or theft. GAO evaluated the Army's effectiveness in maintaining accountability of inventory shipped to repair contractors. To conduct its review, GAO analyzed shipment data for fiscal year 2004, surveyed repair contractors that were recipients of inventory shipments, and assessed the Army's adherence to internal control procedures. Inventory shipments included both secondary repair items--components, assemblies, and subassemblies, other than major end items, which may be sent to commercial facilities for repair, alteration, or modification--and government-furnished materiel--assemblies, parts, and other items provided in support of this work."
Date:
December 13, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Report
System:
The UNT Digital Library
Evidence for Groundwater Contamination Vulnerability in California?s Central Valley
The California Water Resources Control Board, in collaboration with the US Geological Survey and Lawrence Livermore National Laboratory, has implemented a program to assess the susceptibility of groundwater resources. Advanced techniques such as groundwater age dating using the tritium-helium method, extensive use of oxygen isotopes of the water molecule ({delta}{sup 18}O) for recharge water provenance, and analysis of common volatile organic compounds (VOCs) at ultra-low levels are applied with the goal of assessing the contamination vulnerability of deep aquifers, which are frequently used for public drinking water supply. Over 1200 public drinking water wells have been tested to date, resulting in a very large, tightly spaced collection of groundwater ages in some of the heavily exploited groundwater basins of California. Smaller scale field studies that include shallow monitoring wells are aimed at assessing the probability that nitrate will be transported to deep drinking water aquifers. When employed on a basin-scale, groundwater ages are an effective tool for identifying recharge areas, defining flowpaths, and determining the rate of transport of water and entrained contaminants. De-convolution of mixed ages, using ancillary dissolved noble gas data, gives insight into the water age distribution drawn at a well, and into the effective dilution of …
Date:
December 13, 2005
Creator:
Moran, J. E.; Leif, R.; Esser, B. K. & Singleton, M. J.
Object Type:
Article
System:
The UNT Digital Library
The Express-Star (Chickasha, Okla.), Ed. 1 Tuesday, December 13, 2005
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 13, 2005
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Failure Scenarios and Mitigations and for the BaBar Superconducting Solenoid
The cryogenic department at the Stanford Linear Accelerator Center is responsible for the operation, troubleshooting, and upgrade of the 1.5 Tesla superconducting solenoid detector for the BABAR B-factory experiment. Events that disable the detector are rare but significantly impact the availability of the detector for physics research. As a result, a number of systems and procedures have been developed over time to minimize the downtime of the detector, for example improved control systems, improved and automatic backup systems, and spares for all major components. Together they can prevent or mitigate many of the failures experienced by the utilities, mechanical systems, controls and instrumentation. In this paper we describe various failure scenarios, their effect on the detector, and the modifications made to mitigate the effects of the failure. As a result of these modifications the reliability of the detector has increased significantly with only 3 shutdowns of the detector due to cryogenics systems over the last 2 years.
Date:
December 13, 2005
Creator:
Thompson, EunJoo; Candia, A.; Craddock, W. W.; Racine, M. & Weisend, J. G., II
Object Type:
Article
System:
The UNT Digital Library
[Funeral Program for Rose Marie Blackson, December 13, 2005]
Funeral program for Rose Marie Blackson, born February 13, 1921 and died December 7, 2005. The funeral was held Tuesday, December 13, 2005 at Second Baptist Church, officiated by Robert L. Jemerson. Funeral arrangements were made through Carter-Taylor-Williams Mortuary and she was buried in Southern Memorial Park in San Antonio, Texas.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
General Base Input
Contains General Base Input (SAMMC)San Antonio Military Medical Center-Texas.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
General-Community Meeting
Contains notes and research (General) Community Meeting-July 18, 2005 with New Hampshire Delegation.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Text
System:
The UNT Digital Library
Greensheet (Houston, Tex.), Vol. 36, No. 529, Ed. 1 Tuesday, December 13, 2005
Free weekly newspaper that includes business and classified advertising.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Greensheet (Houston, Tex.), Vol. 36, No. 530, Ed. 1 Tuesday, December 13, 2005
Free weekly newspaper that includes business and classified advertising.
Date:
December 13, 2005
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
High Bandwidth Rotary Fast Tool Servos and a Hybrid Rotary/Linear Electromagnetic Actuator
None
Date:
December 13, 2005
Creator:
Montesanti, R C
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Hot Surface Ionic Line Emission and Cold K-Inner Shell Emission From Petawatt-Laser Irradiated Cu Foil Targets
A hot, T{sub e} {approx} 2- to 3-keV surface plasma was observed in the interaction of a 0.7-ps petawatt laser beam with solid copper-foil targets at intensities >10{sup 20} W/cm{sup 2}. Copper K-shell spectra were measured in the range of 8 to 9 keV using a single-photon-counting x-ray CCD camera. In addition to K{sub {alpha}} and K{sub {beta}} inner-shell lines, the emission contained the Cu He{sub {alpha}} and Ly{sub {alpha}} lines, allowing the temperature to be inferred. These lines have not been observed previously with ultrafast laser pulses. For intensities less than 3 x 10{sup 18} W/cm{sup 2}, only the K{sub {alpha}} and K{sub {beta}} inner-shell emissions are detected. Measurements of the absolute K{sub {alpha}} yield as a function of the laser intensity are in agreement with a model that includes refluxing and confinement of the suprathermal electrons in the target volume.
Date:
December 13, 2005
Creator:
Theobald, W.; Akli, K.; Clarke, R.; Delettrez, J. A.; Freeman, R. R.; Glenzer, S. et al.
Object Type:
Article
System:
The UNT Digital Library
Hurricanes Katrina and Rita: Provision of Charitable Assistance
Testimony issued by the Government Accountability Office with an abstract that begins "The devastation and dislocation of individuals experienced throughout the Gulf Coast in Louisiana, Mississippi, Alabama, and Texas in the wake of Hurricanes Katrina and Rita has raised concern about both the charitable sector's and the government's abilities to effectively respond to such disasters. To strengthen future disaster response and recovery operations, the government needs to understand what went right and what went wrong, and to apply these lessons. The National Response Plan outlines the roles of federal agencies and charities in response to national disasters. Recognizing the historically large role of charities in responding to disasters, the plan included charities as signatories and gave them considerable responsibilities. In addition to carrying out the responsibilities outlined in the National Response Plan, charities served as partners to the federal government in providing both immediate and long-term assistance following Hurricanes Katrina and Rita. GAO was asked to provide an overview of lessons learned from charities' response to previous disasters as well as preliminary observations about the role of charities following the Gulf Coast hurricanes. As part of our ongoing work, GAO will continue to analyze federal and charitable efforts following the …
Date:
December 13, 2005
Creator:
United States. Government Accountability Office.
Object Type:
Text
System:
The UNT Digital Library