Serial/Series Title
GENI Program
15
ADEPT Program
6
Solar ADEPT Program
6
ARM Facilities Newsletter
4
Restoring Sustainable Forests on Appalachian Mined Lands for Wood Products, Renewable Energy, Carbon Sequestration, and Other Ecosystems Services Quarterly Report
3
Winter Fuels Report
3
Fiscal Year 2007
2
ANL Site Environmental Report
1
Coolside Waste Management Research Quarterly Report
1
Establishment of an Industry-Driven Consortium Focused on Improving the Production Performance of Domestic Stripper Wells Quarterly Report
1
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2,622 Matching Results
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Am/Cm melter processing limitations evaluation for product loading extremes
Six vitrification runs were conducted in the 5-inch Cylindrical Induction Melter (CIM5) to evaluate the system's ability to process potential product loading extremes that may be encountered during Am/Cm vitrification in the F-Canyon MPPF. This evaluation demonstrates the CIM5 system's ability to vitrify feed streams of the specified extremes.
Date:
April 4, 2000
Creator:
Jones, T. M. & Stone, M. E.
Object Type:
Report
System:
The UNT Digital Library
Ammonia Emission Projections for DWPF Recycle During Macrobatch 3 Campaign
The expected concentration of ammonia in the DWPF liquid recycle during the Macrobatch 3 campaign was estimated using the CPES model. The generation of hydrogen and ammonia during the SRAT/SME cycles was modeled using the same chemistry bases that have been used in all previous CPES model runs made since 1993. In this study, however, the current model basis for calculating the total ammonia production during a coupled operation was reformulated into a more useful form equally applicable to a sludge-only operation as well.
Date:
February 4, 2002
Creator:
Choi, A.S.
Object Type:
Report
System:
The UNT Digital Library
Amorphous and nanocrystalline Mg{sub 2}Si thin film electrodes
Mg{sub 2}Si films, prepared by pulsed laser deposition (PLD), were amorphous, as prepared, and nanocrystalline following annealing. Their micro-structure and electrochemical characteristics were studied by high resolution transmission electron microscopy (HRTEM) and electrochemical cycling against lithium. HRTEM analysis revealed that some excess Si was present in the films. The more amorphous thinner film exhibited excellent cyclability. However, when the film becomes crystalline, the irreversible capacity loss was more significant during the initial cycling and after *50 cycles. Interpretations of the superior stability of the amorphous films are examined.
Date:
February 4, 2003
Creator:
Song, Seung-Wan; Striebel, Kathryn A.; Song, Xiangyun & Cairns, Elton J.
Object Type:
Article
System:
The UNT Digital Library
Amorphous Diamond - A High-pressure Superhard Carbon Allotrope
This report is about the Amorphous Diamond - A High-pressure Superhard Carbon Allotrope
Date:
November 4, 2011
Creator:
Lin, Yu
Object Type:
Article
System:
The UNT Digital Library
Amplitude Analysis of B0 to K^ pi^-pi^0 and Evidence of Direct CP Violation in B to K^* pi decays
We analyze the decay B{sup 0} {yields} K{sup +} {pi}{sup -} {pi}{sup 0} with a sample of 454 million B{bar B} events collected by the BABAR detector at the PEP-II asymmetric-energy B factory at SLAC, and extract the complex amplitudes of seven interfering resonances over the Dalitz plot. These results are combined with amplitudes measured in B{sup 0} {yields} K{sup 0}{sub s}{pi}{sup +}{pi}{sup -} decays to construct isospin amplitudes from B{sup 0} {yields} K{sup *}{pi} and B{sup 0} {yields} {rho}K decays. We measure the phase of the isospin amplitude {Phi}{sub 3/2}, useful in constraining the CKM unitarity triangle angle {gamma} and evaluate a CP rate asymmetry sum rule sensitive to the presence of new physics operators. We measure direct CP violation in B{sup 0} {yields} K{sup *+}{pi}{sup -} decays at the level of 3 {sigma} when measurements from both B{sup 0} {yields} K{sup +}{pi}{sup -}{pi}{sup 0} and B{sup 0} {yields} K{sup 0}{sub s}{pi}{sup +}{pi}{sup -} decays are combined.
Date:
November 4, 2011
Creator:
Lees, J. P.
Object Type:
Article
System:
The UNT Digital Library
AMR vs High Order Schemes Wavelets as a Guide
The final goal behind any numerical method is give the smallest wall-clock time for a given final time error or, conversely, the smallest run-time error for a given wall clock time, etc. Here a comparison will be given between adaptive mesh refinement schemes and non-adaptive schemes of higher order. It will be shown that in three dimension calculations that in order for AMR schemes to be competitive that the finest scale must be restricted to an extremely, and unrealistic, small percentage of the computational domain.
Date:
October 4, 2000
Creator:
Jameson, L.
Object Type:
Report
System:
The UNT Digital Library
Analyses and characterization of double shell tank
Evaporator candidate feed from tank 241-AP-108 (108-AP) was sampled under prescribed protocol. Physical, inorganic, and radiochemical analyses were performed on tank 108-AP. Characterization of evaporator feed tank waste is needed primarily for an evaluation of its suitability to be safely processed through the evaporator. Such analyses should provide sufficient information regarding the waste composition to confidently determine whether constituent concentrations are within not only safe operating limits, but should also be relevant to functional limits for operation of the evaporator. Characterization of tank constituent concentrations should provide data which enable a prediction of where the types and amounts of environmentally hazardous waste are likely to occur in the evaporator product streams.
Date:
October 4, 1994
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Analyses of Divertor Regimes in NSTX
Identification of divertor operating regimes is of particular importance for heat and particle control optimization in high performance plasmas of a spherical torus, because of the magnetic geometry effects and compactness of the divertor region. Recent measurements of radiated power, heat and particle fluxes in lower single null and double null plasmas with 0.8 - 6 MW NBI heating suggest that the inner divertor is detached at {bar n} {sub e} {<=} 2-3x10{sub 19} m{sup -3} whereas the outer divertor is attached, operating in the high recycling regime. This resilient state exists in most L- and H-mode plasmas. The inner divertor transiently re-attaches in ELMy H-mode plasmas when heat pulses from type I or type III ELMs hit the divertor.
Date:
June 4, 2004
Creator:
Soukhanovskii, V.; Maingi, R.; Bush, C.; Paul, S.; Boedo, J.; Kaita, R. et al.
Object Type:
Article
System:
The UNT Digital Library
Analyses of U metal for H, C and O
None
Date:
December 4, 2012
Creator:
Weber, P K; Matzel, J E & Hutcheon, I D
Object Type:
Report
System:
The UNT Digital Library
Analysis and characterization of double shell tank 241-AP-108
This document is the first part of a three-part report describing the analysis and characterization of double shell tank 241-AP-108 which is located at the Hanford Reservation.This document is the analytical laboratory data package entitled `Analysis and Characterization of Double Shell Tank 241-AP-108` which contains a case sampling history, the sampling protocols, the analytical procedures, sampling and analysis quality assurance and quality control measures, and chemical analysis results for samples obtained from the tank.
Date:
October 4, 1994
Creator:
Miller, G. L.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Boron Dilution Transients in PWRS.
A study has been carried out with PARCS/RELAP5 to understand the consequences of hypothetical boron dilution events in pressurized water reactors. The scenarios of concern start with a small-break loss-of-coolant accident. If the event leads to boiling in the core and then the loss of natural circulation, a boron-free condensate can accumulate in the cold leg. The dilution event happens when natural circulation is re-established or a reactor coolant pump (RCP) is restarted in violation of operating procedures. This event is of particular concern in B&W reactors with a lowered-loop design and is a Generic Safety Issue for the U.S. Nuclear Regulatory Commission. The results of calculations with the reestablishment of natural circulation show that there is no unacceptable fuel damage. This is determined by calculating the maximum fuel pellet enthalpy, based on the three-dimensional model, and comparing it with the criterion for damage. The calculation is based on a model of a B&W reactor at beginning of the fuel cycle. If an RCP is restarted, unacceptable fuel damage may be possible in plants with sufficiently large volumes of boron-free condensate in the cold leg.
Date:
February 4, 2004
Creator:
Diamond, David J.; Bromley, Blair P. & Aronson, Arnold L.
Object Type:
Article
System:
The UNT Digital Library
Analysis of closed-pool boilup using the TRANSIT-HYDRO code. [LMFBR]
The benign termination of the transition phase of a hypothetical LMFBR accident rests on the avoidance of highly energetic recriticalities prior to escape of bottled molten core materials from the active core region. In scenarios where molten fuel is trapped due to axial blockages, the maintenance of subcritical configurations until radial flow paths develop requires stable boil-up of the molten fuel/steel mixture. This paper describes the analysis of an experiment investigating the behavior of closed boiling pools using the two-fluid hydrodynamics module of TRANSIT-HYDRO, a deterministic transition-phase analysis code.
Date:
January 4, 1983
Creator:
Graff, D.L.
Object Type:
Article
System:
The UNT Digital Library
Analysis of Decentralized Variable Structure Control for Collective Search by Mobile Robots
This paper presents an analysis of a decentralized coordination strategy for organizing and controlling a team of mobile robots performing collective search. The alpha-beta coordination strategy is a family of collective search algorithms that allow teams of communicating robots to implicitly coordinate their search activities through a division of labor based on self-selected roIes. In an alpha-beta team. alpha agents are motivated to improve their status by exploring new regions of the search space. Beta a~ents are conservative, and reiy on the alpha agents to provide advanced information on favorable regions of the search space. An agent selects its current role dynamically based on its current status value relative to the current status values of the other team members. Status is determined by some function of the agent's sensor readings, and is generally a measurement of source intensity at the agent's current location. Variations on the decision rules determining alpha and beta behavior produce different versions of the algorithm that lead to different global properties. The alpha-beta strategy is based on a simple finite-state machine that implements a form of Variable Structure Control (VSC). The VSC system changes the dynamics of the collective system by abruptly switching at defined states …
Date:
November 4, 1998
Creator:
Feddema, J.; Goldsmith, S. & Robinett, R.
Object Type:
Article
System:
The UNT Digital Library
Analysis of Electromagnetic Pulse (EMP) Measurements in the National Ingition Facility's Target Bay and Chamber
None
Date:
November 4, 2011
Creator:
Brown, C G; Clancy, T J; Eder, D C; Ferguson, W & Throop, A L
Object Type:
Article
System:
The UNT Digital Library
An Analysis of Gas Pressure Forming of Superplastic AL 5083 Alloy
Al 5083 disks of a superplastic forming grade were gas-pressure formed to hemispheres and cones at constant forming pressures with and without back pressure. The forming operation was performed using an in-house designed and built biaxial forming apparatus. The temporal change of dome heights of the hemispheres and cones were measured for the different forming and back pressures applied. The flow stresses and strain rates developed at the top of the dome during the forming step were shown to closely follow the flow stress-strain rate relationship obtained from the strain rate change tests performed at the same temperature using uniaxial tensile samples.
Date:
May 4, 2001
Creator:
Syn, C K; O'Brien, M J; Lesuer, D R & Sherby, O D
Object Type:
Article
System:
The UNT Digital Library
Analysis of Geochemical Data for the Unsaturated Zone
None
Date:
June 4, 2003
Creator:
Dixon, P.
Object Type:
Report
System:
The UNT Digital Library
ANALYSIS OF HARRELL MONOSODIUM TITANATE LOT #071311
Monosodium titanate (MST) for use in the Actinide Removal Process (ARP) must be qualified and verified in advance. A single qualification sample for each batch of material is sent to SRNL for analysis, as well as a statistical sampling of verification samples. The Harrell Industries Lot No.071311 qualification and 12 verification samples met all the requirements in the specification indicating the material is acceptable for use in the process.
Date:
October 4, 2011
Creator:
Taylor-Pashow, K.
Object Type:
Report
System:
The UNT Digital Library
Analysis of how changed federal regulations and economic incentives affect financing of geothermal projects
The effects of various financial incentives on potential developers of geothermal electric energy are studied and the impact of timing of plant construction costs on geothermal electricity costs is assessed. The effect of the geothermal loan guarantee program on decisions by investor-owned utilities to build geothermal electric power plants was examined. The usefulness of additional investment tax credits was studied as a method for encouraging utilities to invest in geothermal energy. The independent firms which specialize in geothermal resource development are described. The role of municipal and cooperative utilities in geothermal resource development was assessed in detail. Busbar capital costs were calculated for geothermal energy under a variety of ownerships with several assumptions about financial incentives. (MHR)
Date:
November 4, 1980
Creator:
Meyers, D.; Wiseman, E. & Bennett, V.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Hydrologic Properties Data
This analysis report describes the methods used to determine hydrologic properties based on the available field data from the unsaturated zone (UZ) at Yucca Mountain, Nevada. The technical scope, content, and management of this analysis report are described in the planning document ''Technical Work Plan for: Unsaturated Zone Flow Analysis and Model Report Integration'' (BSC 2004 [DIRS 169654], Sections 2, 4, and 8). Fracture and matrix properties are developed by analyzing available survey data from the Exploratory Studies Facility (ESF), the Enhanced Characterization of Repository Block (ECRB) Cross-Drift, and/or boreholes; air-injection testing data from surface boreholes and from boreholes in the ESF; and data from laboratory testing of core samples. In addition, the report ''Geologic Framework Model'' (GFM2000) (BSC 2004 [DIRS 170029]) also serves as a source report by providing the geological framework model of the site. This report is a revision of the model report under the same title (BSC 2003 [DIRS 161773]), which in turn superceded the analysis report under the same title. The principal purpose of this work is to provide representative uncalibrated estimates of fracture and matrix properties for use in the model report Calibrated Properties Model. The term ''uncalibrated'' is used to distinguish the properties …
Date:
October 4, 2004
Creator:
Pan, L.
Object Type:
Report
System:
The UNT Digital Library
Analysis of K-1 fan system for replacement of valve actuator, B Plant/Waste Encapsulation and Storage Facility
Components of the K-1 fan system were evaluated for structural adequacy to accommodate an actuator weighing 540 lbs. The components evaluated were the connectors between the actuator and the valve, the duct between the valve and the facility wall, and the stud anchors connecting the duct to the facility wall. The loads were deadload, snow, operating loads, and seismic loads. The components were found to be structurally adequate for these loads.
Date:
January 4, 1995
Creator:
Burgess, J. S.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Materials in an Experimental Testing Pipe System for an Inhibitor of Mussel Kill
A comprehensive series of 16 laboratory experiments demonstrated that the presence of vinyl tubing within a recirculating pipe system was responsible for lowering zebra mussel kill following treatment with the bacterium Pseudomonas fluorescens. All vinyl tubing was replaced in all testing units with silicone tubing, and high mussel kill (>95%) was then obtained.
Date:
June 4, 2003
Creator:
Molloy, Daniel P.
Object Type:
Report
System:
The UNT Digital Library
Analysis of Potential Benefits and Costs of Adopting a Commercial Building Energy Standard in South Dakota
The state of South Dakota is considering adopting a commercial building energy standard. This report evaluates the potential costs and benefits to South Dakota residents from requiring compliance with the most recent edition of the ANSI/ASHRAE/IESNA 90.1-2001 Energy Standard for Buildings except Low-Rise Residential Buildings. These standards were developed in an effort to set minimum requirements for the energy efficient design and construction of new commercial buildings. The quantitative benefits and costs of adopting a commercial building energy code are modeled by comparing the characteristics of assumed current building practices with the most recent edition of the ASHRAE Standard, 90.1-2001. Both qualitative and quantitative benefits and costs are assessed in this analysis. Energy and economic impacts are estimated using results from a detailed building simulation tool (Building Loads Analysis and System Thermodynamics [BLAST] model) combined with a Life-Cycle Cost (LCC) approach to assess corresponding economic costs and benefits.
Date:
March 4, 2005
Creator:
Belzer, David B.; Cort, Katherine A.; Winiarski, David W. & Richman, Eric E.
Object Type:
Report
System:
The UNT Digital Library
Analysis of PT-684-A hot die size process parameters evaluation
None
Date:
February 4, 1965
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Analysis of residual tritium in an LP 50 product container
The analysis was done by sampling coupons cut from the side of the vessel. Tests were performed to analyze the amount of residual tritium in the container wall, as well as the amount of tritium removed through exposure to moist air. Based on this data, the PC contained 62 curies of residual tritium. Air exposure and leaching of the coupons in aqua regia accounted for 27 curies. Recommendations are given for final processing of these containers in order to reduce the final tritium content.
Date:
June 4, 1996
Creator:
Wermer, J.R.
Object Type:
Report
System:
The UNT Digital Library