You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Decade: 1980-1989
 Collection: Technical Report Archive and Image Library
7-GeV Advanced Photon Source : Conceptual Design Report
During the past decade, synchrotron radiation emitted by circulating electron beams has come into wide use as a powerful, versatile source of x-rays for probing the structure of matter and for studying various physical processes. Several synchrotron radiation facilities with different designs and characteristics are now in regular operation throughout the world, with recent additions in this country being the 0.8-GeV and 2.5-GeV rings of NSLS at Brookhaven National Laboratory. However, none of the operating facilities has been designed to use a low-emittance, high-energy stored beam, together with modern undulator devices, to produce a large number of hard x-ray beams of extremely high brilliance. This document is a proposal to the Department of Energy to construct and operate high-energy synchrotron radiation facility at Argonne National Laboratory. We have now chosen to set the design energy of this facility at 7.0 GeV, with the capability to operate at up to 7.5 GeV. digital.library.unt.edu/ark:/67531/metadc282823/
15 Mile Road/Edison Corridor Sewer Tunnel Failure Study, Detroit Area, Michigan
Partial abstract: "The study consisted of field and laboratory investigations, construction evaluation, and geotechnical and structural analyses to determine the cause(s) of distress and failure of a 2600-ft section of 12-ft 9-in. diameter concrete-lined sanitary sewer tunnel in the Detroit, Mich., area. [...] The report includes summaries of all pertinent construction records, results of all pertinent past and current field and laboratory tests on construction and geotechnical materials, and detailed geotechnical and structural analyses based on observed conditions and measured parameters." digital.library.unt.edu/ark:/67531/metadc303923/
1985 Annual Site Environmental Report for Argonne National Laboratory
Report on the environmental impact of Argonne National Laboratory. digital.library.unt.edu/ark:/67531/metadc282784/
1986 Annual Site Environmental Report for Argonne National Laboratory
Report on the ongoing environmental monitoring program at Argonne National Laboratory. digital.library.unt.edu/ark:/67531/metadc282817/
²³⁵U(n,f), ²³⁸U(n, gamma), ²³⁸U(n,f), ²³⁹Pu(n,f) Reaction Rate Measurement Calibrations at ZPPR
New reference deposits for uranium-235, plutonium-239 and uranium-238 have been established with mass uncertainties of <0.2%. These new deposits replace the older reference deposits which were used during the last 17 years and improve the uncertainty of reaction rate measurements due to reference mass uncertainties by about a factor of 6. Measurements of the fission fragment absorption in 2 pi and low-geometry count rates. Two measurements of the uranium-238 capture rate in depleted uranium samples based upon the thermal cross sections of uranium-238(n, gamma), uranium-235(n,f) and plutonium-239(n,f) and based upon the americium-243 calibration technique confirm the ZPPR measurement technique within the quoted uncertainty of +/-0.5% digital.library.unt.edu/ark:/67531/metadc282813/
Accuracy of the Finite Analytic Method for Scalar Transport Calculations
The accuracy of the finite analytic method of discretizing fluid flow equations is assessed through calculations of multidimensional scalar transport. The transport of a scalar function in a uniform velocity flow field inclined with the finite-difference grid lines is calculated for a range of grid Peclet numbers and flow skewness. The finite analytic method is observed to be superior to the approach of constructing finite-difference analogs from locally one-dimensional resolution of the flow vector. However, the finite analytic method also produces appreciable errors locally in regions of steep variations, under conditions of large grid Peclet numbers, and skewness of the streamlines. digital.library.unt.edu/ark:/67531/metadc282736/
Accurate and Efficient Testing of the Exponential and Logarithm Functions in Ada
Report of how table-driven techniques can be used to test highly accurate implementations of EXP and LOG. digital.library.unt.edu/ark:/67531/metadc282870/
Accurate Numerical Solutions for Elastic-Plastic Models
The accuracy of two integration algorithms is studied for the common engineering condition of a von Mises, isotropic hardening model under plane stress. Errors in stress predictions for given total strain increments are expressed with contour plots of two parameters: an angle in the pi plane and the difference between the exact and computed yield-surface radii. digital.library.unt.edu/ark:/67531/metadc283438/
Acoustic Leak Detection for District Heating Systems
An acoustic leak detection facility was completed and used to evaluate the capability of piezoelectric sensors, accelerometers, and capacitance microphones to detect and locate gas and water leaks in underground district heating and cooling (DHC) piping. Leak detection sensitivity and location capabilities for DHC systems were estimated from laboratory data and from data obtained from the underground DH system in Scranton, Pennsylvania, where acoustic background noise levels and acoustic signals from field-induced steam leaks were acquired. Acoustic detection of leaks with flow rates of less than 10 gpm is possible at a distance of several hundred meters, with a location accuracy of a few meters. Although steam leaks of comparable mass loss can be detected over a similar range with transducers mounted on the pipe outer wall, location accuracy of a few meters over this range may only be possible with transducers in direct contract with the steam. Intrusive sensors may also be necessary to detect and locate leaks in plastic pipe. digital.library.unt.edu/ark:/67531/metadc282853/
Activities and Operations of the Advanced Computing Research Facility. January 1985 - July 1986
This report discusses research activities and operations of the Advanced Computing Research Facility (ACRF) at Argonne National Laboratory from January 1985 through June 1986. During this period, the Mathematics and Computer Science Division (MCS) at Argonne received incremental funding from the Applied Mathematical Sciences program of the DOE Office of Energy Research to operate computers with innovative designs that promise to be useful for advanced scientific research. Over a five-month period, four new commercial multiprocessors (an Encore Multimax, a Sequent Balance 21000, an Aliant FX/8, and an Intel iPSC/d5) were installed in the ACRF, creating a new wave of research projects concerning computer systems with parallel and vector architectures. A list of projects, publications, and users supported by the ACRF is included. digital.library.unt.edu/ark:/67531/metadc282793/
Activities and Operations of the Advanced Computing Research Facility : July - October 1986
Research activities and operations of the Advanced Computing Research Facility (ACRF) at Argonne National Laboratory are discussed for the period from July 1986 through October 1986. The facility is currently supported by the Department of Energy, and is operated by the Mathematics and Computer Science Division at Argonne. Over the past four-month period, a new commercial multiprocessor, the Intel iPSC-VX/d4 hypercube was installed. In addition, four other commercial multiprocessors continue to be available for research - an Encore Multimax, a Sequent Balance 21000, an Alliant FX/8, and an Intel iPSC/d5 - as well as a locally designed multiprocessor, the Lemur. These machines are being actively used by scientists at Argonne and throughout the nation in a wide variety of projects concerning computer systems with parallel and vector architectures. digital.library.unt.edu/ark:/67531/metadc282808/
Activities and Operations of the Advanced Computing Research Facility : November 1987-December 1988
Report on the activities of Argonne Advanced Computing Research Facility, including LAPACK, vectorizing compilers, algorithm design and restructuring, automated deduction, three-dimensional scientific visualization, and graphics trace facilities. digital.library.unt.edu/ark:/67531/metadc282886/
Activities and Operations of the Advanced Computing Research Facility : October 1986-October 1987
This paper contains a description of the work being carried out at the advanced computing research facility at Argonne National Laboratory. Topics covered are upgrading of computers, networking changes, algorithms, parallel programming, programming languages, and user training. digital.library.unt.edu/ark:/67531/metadc282849/
Advanced Fuel Cell Development Progress Report: April-June 1980
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of molten carbonate fuel cells and have included operation of a 10-cm square cell. digital.library.unt.edu/ark:/67531/metadc283358/
Advanced Fuel Cell Development Progress Report: April-June 1981
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) improving understanding of component behavior in molten carbonate fuel cells and (2) developing alternative concepts for components. The principal focus has been on the development of sintered y-LiAIO2 electrolyte supports, stable NiO cathodes, and hydrogen diffusion barriers. Cell tests were performed to assess diffusion barriers and to study cathode voltage relaxation following current interruption. digital.library.unt.edu/ark:/67531/metadc283362/
Advanced Fuel Cell Development Progress Report: April-June 1982
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc283366/
Advanced Fuel Cell Development Progress Report: April-June 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts on development of molten carbonate fuel cells directed toward seeking alternative cathode materials to NiO. Based on an investigation of the thermodynamically stable phases formed under cathode conditions with a number of transition metal oxides, synthesis of prospective alternative cathode materials and doping of these materials to promote electronic conductivity is under way. digital.library.unt.edu/ark:/67531/metadc283367/
Advanced Fuel Cell Development Progress Report: April-June 1984
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). These efforts have been directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. Particular emphasis has been placed on studying the relationship between synthesis conditions and the resistivity of doped and undoped LiFeO2 and Li2 MnO3 and on achieving a better understanding of the crystalline defect structures of the thermodynamically stable phases. digital.library.unt.edu/ark:/67531/metadc282729/
Advanced Fuel Cell Development Progress Report: January-March 1980
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of molten carbonate fuel cells and have included operation of 10-cm square cells. digital.library.unt.edu/ark:/67531/metadc283357/
Advanced Fuel Cell Development Progress Report: January-March 1981
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) developing alternative concepts for components for molten carbonate fuel cells and (2) improving our understanding of component behavior. digital.library.unt.edu/ark:/67531/metadc283361/
Advanced Fuel Cell Development Progress Report: January-March 1982
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) evaluating the dissolution of NiO cathodes in molten carbonate fuel cells and (2) seeking alternative cathode materials. Solubility data were taken for NiO in a cathode environment, and previously operated cells were examined for nickel transfer. A literature search was made for prospective alternative cathode materials, and synthesis of new materials was begun. Apparatus was assembled for conductivity measurements on cathode materials. digital.library.unt.edu/ark:/67531/metadc283365/
Advanced Fuel Cell Development Progress Report: January-March 1984
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activitiesdirected toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc282728/
Advanced Fuel Cell Development Progress Report: July-September 1979
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of the molten carbonate fuel cells operated at temperatures near 925 K. digital.library.unt.edu/ark:/67531/metadc283355/
Advanced Fuel Cell Development Progress Report: July-September 1980
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) investigating alternative concepts for components of molten carbonate fuel cell stacks and (2) improving our understanding of component behavior. digital.library.unt.edu/ark:/67531/metadc283359/
Advanced Fuel Cell Development Progress Report: July-September 1981
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) improving understanding of component behavior in molten carbonate fuel cells and (2) developing alternative concepts for components. digital.library.unt.edu/ark:/67531/metadc283363/
Advanced Fuel Cell Development Progress Report: July-September 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc173304/
Advanced Fuel Cell Development Progress Report: July-September 1984
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes studies directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc282730/
Advanced Fuel Cell Development Progress Report: October-December 1979
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward understanding and improving components of molten carbonate fuel cells and have included operation of 10-cm square cells. digital.library.unt.edu/ark:/67531/metadc283356/
Advanced Fuel Cell Development Progress Report: October-December 1980
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) developing alternative concepts for components of molten carbonate fuel cells and (2) improving understanding of component behavior. digital.library.unt.edu/ark:/67531/metadc283360/
Advanced Fuel Cell Development Progress Report: October-December 1981
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes efforts directed toward (1) improving understanding of component behavior in molten carbonate fuel cells and (2) developing alternative materials and concepts for components. The principal focus was changed during this period from the development of cathodes fabricated from NiO and electrolyte supports of sintered y-LiA102 to an investigation of NiO cathode dissolution and deposition and a search for alternative cathode materials. digital.library.unt.edu/ark:/67531/metadc283364/
Advanced Fuel Cell Development Progress Report: October-December 1983
Quarterly report discussing fuel cell research and development work at Argonne National Laboratory (ANL). This report describes activities directed toward seeking alternative cathode materials to NiO for molten carbonate fuel cells. digital.library.unt.edu/ark:/67531/metadc173318/
Advanced Materials in the Manufacturing Revolution: Proceedings of the Conference Held at Argonne National Laboratory June 14, 1988
A conference at Argonne National Laboratory for senior executives of small and medium-size manufacturing companies covered technical and managerial issues involved in adapting advanced materials and new manufacturing methods. Seven speakers discussed how high performance metals, alloys, ceramics, polymerics and their composites are replacing conventional mill-product materials and how these new materials are impacting manufacturing methods and products. digital.library.unt.edu/ark:/67531/metadc282969/
Advanced Thermoplastic Materials for District Heating Piping Systems
The work described in this report represents research conducted in the first year of a three-year program to assess, characterize, and design thermoplastic piping for use in elevated-temperature district heating (DH) systems. The present report describes the results of a program to assess the potential usefulness of advanced thermoplastics as piping materials for use in DH systems. digital.library.unt.edu/ark:/67531/metadc282779/
Air Pollution and Acid Rain, Report 4: The Effects of Air Pollution and Acid Rain on Fish, Wildlife, and Their Habitats: Lakes
Report summarizing the research related to the effects of air pollution on fish and wildlife that inhabit lakes and wetlands environments. digital.library.unt.edu/ark:/67531/metadc100515/
An Algebraic Theory of Program Specification and Correctness Using Symmetry Operations
This report applies some methods from the theory of group representation to the questions of program specification and knowledge about programs. The theory is that of a program as a transformation on a state space, and operators commuting with that transformation being symmetries of the program, means of specifying properties, and generators of program invariants. Because a program can simulate a system in the real world, there is a corresponding model of engineered artifacts, that is, manmade objects having a theory for their design. digital.library.unt.edu/ark:/67531/metadc282818/
Algorithms for Automated Diagnosis of Faults in Physical Plant
This report presents a diagnostic automation that can be used to investigate classes of systems without feedback loops. This report shows the input needed for the automation, the algorithm used, and the PROLOG program for the simulation. digital.library.unt.edu/ark:/67531/metadc283600/
Allyns Bight: Biological Resources
Map showing biological resources (birds, oysters, fishes, grasses, etc.) in the Allyns Bight region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66579/
Allyns Bight: Mineral Resources and Selected Oil and Gas Infrastructure
Map showing mineral resources (oil, gas, sand, clay, etc.) in the Allyns Bight region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66561/
Allyns Bight: Socioeconomic and Natural Features
Map showing various sites and features (recreation sites, water treatment facilities, public lands, historic sites, transportation, etc.) in the Allyns Bight region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66544/
An Alternative Library Under 4. 2 BSD UNIX on a VAX 11/780
This paper describes an alternative library of elementary functions prepared for use with the standard Fortran compiler under 4.2 BSD UNIX on a VAX 11/780. The library, written in C and based on the book ''Software Manual for the Elementary Functions'' by Cody and Waite, offers improved accuracy over the standard system library, as well as additional capabilities. Listings and output from the ELEFUNT suite of test programs are included in the appendix. digital.library.unt.edu/ark:/67531/metadc282781/
Alternatives for Conversion to Solid Interim Waste Forms of the Radioactive Liquid High-Level Wastes Stored at the Western New York Nuclear Service Center
Techniques for isolating and solidifying the nuclear wastes in the storage tanks at the Western New York Nuclear Service Center plant have been examined. One technique involves evaporating the water and forming a molten salt containing the precipitated sludge. The salt is allowed to solidify and is stored in canisters until processing into a final waste form is to be done. Other techniques involve calcining the waste material, then agglomerating the calcine with sodium silicate to reduce its dispersibility. This option can also involve a prior separation and decontamination of the supernatant salt. The sludge and all resins containing fission-product activity are then calcined together. The technique of removing the water and solidifying the salt may be the simplest method for removing the waste from the West Valley Plant. digital.library.unt.edu/ark:/67531/metadc283507/
Alternatives for Disposal of Raffinate from the TRUEX Process
Possible methods for disposing of the immobilized raffinate from TRUEX processing are reviewed. The purpose of the TRUEX process is to extract transuranium elements from high-level and TRU wastes into a small volume that can be managed at lower cost than that of the original wastes. The raffinate from the TRUEX process, containing negligible concentrations of transuranium elements, would be combined with salt solutions also derived from processing high-level waste, and the mixture would be converted to grout. digital.library.unt.edu/ark:/67531/metadc282986/
Alumina Miniplant Operations: Separation of Aluminum Chloride Liquor from Leach Residue Solids by Classification and Thickening
Report issued by the Bureau of Mines over recovery methods of alumina through leaching of kaolin clay. The materials, equipment, and procedures used are discussed. This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc38730/
Anahuac: Biological Resources
Map showing biological resources (birds, oysters, fishes, grasses, etc.) in the Anahuac region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66578/
Anahuac: Mineral Resources and Selected Oil and Gas Infrastructure
Map showing mineral resources (oil, gas, sand, clay, etc.) in the Anahuac region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66562/
Anahuac: Socioeconomic and Natural Features
Map showing various sites and features (recreation sites, water treatment facilities, public lands, historic sites, transportation, etc.) in the Anahuac region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66545/
Analysis of an Internally Pressurized Prismatic Cell Can
This report contains an elastic stress and displacement analysis of a prismatic cell can subjected to internal pressure. A computer program was written to perform the analysis. The results show that, for the geometry chosen, the thicknesses of the cell-can walls and the magnitude of the internal pressure are the most important parameters that determine the stresses and deformations of the cell can. Recommendations for future studies are included. digital.library.unt.edu/ark:/67531/metadc283437/
Analysis of Cracked Core Spray Injection Line Piping from the Quad Cities Units 1 and 2 Boiling Water Reactors
Elbow assemblies and adjacent piping from the loops A and B core spray injection lines of Quad Cities Units 1 and 2 Boiling Water Reactors have been examined in order to determine the nature and causes of coolant leakages and flaw indications detected during hydrostatic tests and subsequent ultrasonic inspections. The elbow assemblies were found to contain multiple intergranular cracks in the weld heat-affected zones. The cracking was predominantly axial in orientation in the forged elbow and wedge components, whereas mixed axial and circumferential cracking was seen in the wrought piping pieces. In at least two instances, axial cracks completely penetrated the circumferential weld joining adjacent components. Based upon the observations made in the present study, the failures were attributed to intergranular stress corrosion cracking caused by the weld-induced sensitized microstructure and residual stresses present; dissolved oxygen in the reactor coolant apparently served as the corrosive species. The predominantly axial orientation of the cracks present in the forged components is believed to be related to the banded microstructure present in these components. The metallographic studies reported are supplemented by x-radiography, chemical analysis and mechanical test results, determinations of the degree of sensitization present, and measurements of weld metal delta ferrite content. digital.library.unt.edu/ark:/67531/metadc283624/
Analysis of Heat-Pipe Absorbers in Evacuated-Tube Solar Collectors
Heat transfer in evacuated-tube solar collectors with heat-pipe absorbers is compared with that for similar collectors with flow-through absorbers. In systems that produce hot water or other heated fluids, the heat-pipe absorber suffers a heat transfer penalty compared with the flow-through absorber, but in many cases the penalty can be minimized by proper design at the heat-pipe condenser and system manifold. The heat transfer penalty decreases with decreasing collector heat loss coefficient, suggesting that evacuated tubes with optical concentration are more appropriate for use with heat pipes than evacuated or non-evacuated flat-plate collectors. When the solar collector is used to drive an absorption chiller, the heat-pipe absorber has better heat transfer characteristics than the flow-through absorbers. digital.library.unt.edu/ark:/67531/metadc282787/
Analysis of Proposed Gamma-Ray Detection System for the Monitoring of Core Water Inventory in a Pressurized Water Reactor
An initial study has been performed of the feasibility of employing an axial array of gamma detectors located outside the pressure vessel to monitor the coolant in a PWR. A one-dimensional transport analysis model is developed for the LOFT research reactor and for a mock-PWR geometry. The gamma detector response to coolant voiding in the core and down-comer has been determined for both geometries. The effects of various conditions (for example, time after shutdown, materials in the transport path, and the relative void fraction in different water regions) on the detector response are studied. The calculational results have been validated by a favorable comparison with LOFT experimental data. Within the limitations and approximations considered in the analysis, the results indicate that the gamma-ray detection scheme is able to unambiguously respond to changes in the coolant inventory within any vessel water region. digital.library.unt.edu/ark:/67531/metadc282836/
FIRST PREV 1 2 3 4 5 NEXT LAST