You limited your search to:

  Partner: UNT Libraries Government Documents Department
 Decade: 1980-1989
 Collection: Technical Report Archive and Image Library
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/
Analysis of the October 5, 1979 Lithium Spill and Fire in the Lithium Processing Test Loop
On October 5, 1979, the Lithium Processing Test Loop (LPTL) developed a lithium leak in the electromagnetic (EM) pump channel, which damaged the pump, its surrounding support structure, and the underlying floor pan. A thorough analysis of the causes and consequences of the pump failure was conducted by personnel from CEN and several other ANL divisions. Metallurgical analyses of the elliptical pump channel and adjacent piping revealed that there was a significant buildup of iron-rich crystallites and other solid material in the region of the current-carrying bus bars (region of high magnetic field), which may have resulted in a flow restriction that contributed to the deterioration of the channel walls. The location of the failure was in a region of high residual stress (due to cold work produced during channel fabrication); this failure is typical of other cold work/stress-related failures encountered in components operated in forced-circulation lithium loops. Another important result was the isolation of crystals of a compound characterized as Li/sub x/CrN/sub y/. Compounds of this type are believed to be responsible for much of the Fe, Cr, and Ni mass transfer encountered in lithium loops constructed of stainless steel. The importance of nitrogen in the mass-transfer mechanism has long been suspected, but the existence of stable ternary Li-M-N compounds (M = Fe, Cr, Ni) had not previously been verified. digital.library.unt.edu/ark:/67531/metadc283498/
Analytical and Experimental Analysis of Procedures for Testing Solar Domestic Hot Water Systems
Report issued by the National Bureau of Standards over testing procedures used for solar domestic water heating systems. Testing methods are discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc38321/
Analytical Techniques for Ambient Sulfate Aerosols
This report describes the work done to further develop the infrared spectroscopic analytical method for the analysis of atmospheric aerosol particles, as well as some exploratory work on a new procedure for determining proton acidity in aerosol samples. Earlier work had led to the successful use of infrared (ir) spectrophotometry for the analysis of nitrate, ammonium, and neutral and acidic sulfates in aerosol samples collected by an impactor on a Mylar-film substrate. In this work, a filter-extraction method was developed to prepare filter-collected aerosol samples for ir analysis. A study was made comparing the ir analytical results on filter-collected samples with impactor-collected samples. Also, the infrared analytical technique was compared in field studies with light-scattering techniques for aerosol analysis. A highly sensitive instrument for aerosol analysis using attenuated total internal reflection (ATR) infrared spectroscopy was designed, built, and tested. This instrument provides a measurement sensitivity much greater (by a factor of 6 for SO4²⁻) than that obtainable using the KBr-pellet method. This instrument collects size- and time-resolved samples and is potentially capable of providing automated, near real-time aerosol analysis. Exploratory work on a novel approach to the determination of proton acidity in filter- or impactor-collected aerosol samples is also described. In this technique, the acidic sample is reacted with an access of a tagged, vapor-phase base. The unreacted base is flushed off and the amount of the tag retained by the sample is a direct measure of the proton acidity of the sample. The base was tagged with germanium, which can be conveniently determined by the x-ray fluorescence technique. digital.library.unt.edu/ark:/67531/metadc283494/
Los Angeles, California
Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Los Angeles region of the Pacific coast area. Scale 1:250,000. digital.library.unt.edu/ark:/67531/metadc66995/
Angleton: Biological Resources
Map showing biological resources (birds, oysters, fishes, grasses, etc.) in the Angleton region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66580/
Angleton: Mineral Resources and Selected Oil and Gas Infrastructure
Map showing mineral resources (oil, gas, sand, clay, etc.) in the Angleton region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66563/
Angleton: Socioeconomic and Natural Features
Map showing various sites and features (recreation sites, water treatment facilities, public lands, historic sites, transportation, etc.) in the Angleton region of the Texas Barrier Islands coastline area. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66546/
ANL/HTP: A Computer Code for the Simulation of Heat Pipe Operation
ANL/HTP is a computer code for the simulation of heat pipe operation, to predict heat pipe performance and temperature distributions during steady state operation. Source and sink temperatures and heat transfer coefficients can be set as input boundary conditions, and varied for parametric studies. Five code options are included to calculate performance for fixed operating conditions, or to vary any one of the four boundary conditions to determine the heat pipe limited performance. The performance limits included are viscous, sonic, entrainment capillary, and boiling, using the best available theories to model these effects. The code has built-in models for a number of wick configurations - open grooves, screen-covered grooves, screen-wrap, and arteries, with provision for expansion. The current version of the code includes the thermophysical properties of sodium as the working fluid in an expandable subroutine. The code-calculated performance agrees quite well with measured experiment data. digital.library.unt.edu/ark:/67531/metadc283626/
Anna Maria: Biological Resources
Map showing biological resources (birds, oysters, fishes, grasses, etc.) in the Anna Maria region of the Tampa Bay, Florida coastline area. Scale 1:24,000. digital.library.unt.edu/ark:/67531/metadc66622/
Anna Maria: Water Resources
Map showing hydrologic resources (point source discharges, tide stations, sediment, tidal currents, etc.) in the Anna Maria region of the Tampa Bay, Florida coastline area. Scale 1:24,000. digital.library.unt.edu/ark:/67531/metadc66602/
Annex to 7-GeV Advanced Photon Source : Conceptual Design Report
The Annex to the 7-GeV Advanced Photon Source Conceptual Design Report updates the Conceptual Design Report of 1987 (CDR-87) to include the results of further optimization and changes of the design during the past year. The design changes can be summarized as affecting three areas: the accelerator system, conventional facilities, and experimental systems. Most of the changes in the accelerator system result from inclusion of a positron accumulator ring (PAR), which was added at the suggestion of the 1987 DOE Review Committee, to speed up the filling rate of the storage ring. The addition of the PAR necessitates many minor changes in the linac system, the injector synchrotron, and the low-energy beam transport lines. 63 figs., 18 tabs. digital.library.unt.edu/ark:/67531/metadc282824/
Annual Research Summary
Report on activities of the Division of Biological and Medical Research in carcinogenesis, low level radiation, molecular biology, and toxicology. digital.library.unt.edu/ark:/67531/metadc173315/
Annual Site Environmental Report for Argonne National Laboratory
Report on the environmental impact of Argonne National Laboratory. digital.library.unt.edu/ark:/67531/metadc282863/
Annual Technical Report
Report of Argonne Chemical Technology division activities, including high-performance batteries, aqueous batteries, advanced fuel cells, and coal utilization. digital.library.unt.edu/ark:/67531/metadc282868/
Annual Technical Report 1980
Report of activities of Argonne Chemical Engineering Division, including advanced battery project, electro-chemical project management, advanced fuel cell development, utilization of coal, magnetohydrodynamics heat and seed recovery technology, solar energy, fast reactor chemistry research, nuclear fuel cycle studies, magnetic fusion energy research, and basic energy science. digital.library.unt.edu/ark:/67531/metadc283320/
Annual Variation of Temperature Field and Heat Transfer Under Heated Ground Surfaces (Slab-on-Grade Floor Heat Loss Calculation)
Report issued by the National Bureau of Standards over studies conducted on sub-surface temperatures and heat transfer. Testing methods are discussed. This report includes tables, and illustrations. digital.library.unt.edu/ark:/67531/metadc38338/
Apalachicola, Florida
Map showing biological resources (aquatic organisms, terrestrial organisms, land use, etc.) in the Apalachicola region of the Gulf of Mexico coast area. Scale 1:250,000. digital.library.unt.edu/ark:/67531/metadc66672/
Application of a Multigrid Method to a Buoyancy-Induced Flow Problem
The numerical prediction of buoyancy-induced flows provides special difficulties for standard numerical techniques associated with velocity-buoyancy coupling. We present a multigrid algorithm based upon a novel relaxation scheme that handles this coupling correctly. Numerical experiments have been performed that show that this approach is reasonably efficient and robust for a range of Rayleigh numbers and a variety of cycling strategies. digital.library.unt.edu/ark:/67531/metadc282846/
Application of International Safeguards to Fast Critical Assembly Facilities. FY 1980 Summary Report
Nuclear materials inventory-verification techniques for large split-table fast critical assemblies are being studied in this program. Emphasis has been given to techniques that minimize fuel handling in order to reduce facility downtime and radiation exposure to the inventory team. The techniques studied include drawer seals, autoradiography, and spectral index measurements. Two-drawer sealing techniques have been studied, and the relative strengths and weaknesses are pointed out. The rod-type locking mechanism would not disrupt the reactor cooling air flow or interfere with autoradiography but is more expensive to implement. Passive autoradiography was used in a ZPPR inventory to verify to a 93% confidence level that less than 8-kg plutonium was missing. The inventory was completed in four days by a five-member team with radiation exposures well within acceptable limits. Two autoradiographic film packages were developed to distinguish HEU from a DU matrix. The 30-mil pack requires an exposure between 4 and 16 hours and fits into most of the drawers. The 40-mil pack requires only a two-hour exposure but fits into less than half the drawers. digital.library.unt.edu/ark:/67531/metadc283486/
Application of Method of Characteristics to Model the Transport of Discrete Solids in Partially-Filled Pipe Flow
Report issued by the National Bureau of Standards over transporting discrete solids in partially-filled flow pipes. The methods and application of drainage flow are discussed. This report includes tables, illustrations, and photographs. digital.library.unt.edu/ark:/67531/metadc38320/
The Application of Neutron-Activation Analysis to the Determination of Leach Rates of Simulated Nuclear-Waste Forms
The application of neutron activation analysis to the determination of element release from simulated nuclear waste forms during leaching is described for several different glasses. Potential neutron irradiation effects are discussed, and it is shown, by a series of leach tests on activated and non-activated glass samples, that neutron irradiation has no discernible effect on the release of silicon and cesium during leaching. The radioisotopes best suited for analysis with this method and their associated detection limits are identified, and the method's applicability to waste forms other than glass is discussed. digital.library.unt.edu/ark:/67531/metadc283503/
Applied Mathematical Sciences Research at Argonne April 1, 1980-March 31, 1981
This report reviews the research activities of the Applied Mathematical Sciences Section for the period April 1, 1980, through March 31, 1981. The body of the report discusses various projects carried out in three major areas of research: applied analysis, computational mathematics, and software engineering. Information on section staff, visitors, workshops, and seminars is found in the appendices. digital.library.unt.edu/ark:/67531/metadc283387/
Applied Mathematical Sciences Research at Argonne, April 1, 1981-March 31, 1982
This report reviews the research activities in Applied Mathematical Sciences at Argonne National Laboratory for the period April 1, 1981, through March 31, 1982. The body of the report discusses various projects carried out in three major areas of research: applied analysis, computational mathematics, and software engineering. Information on section staff, visitors, workshops, and seminars is found in the appendices. digital.library.unt.edu/ark:/67531/metadc283388/
Applied Mathematical Sciences Research at Argonne, April 1, 1982-March 31, 1983
This report reviews the research activities in Applied Mathematical Sciences at Argonne National Laboratory for the period April 1, 1982, through March 31, 1983. The body of the report discusses various projects carried out in three major areas of research: applied analysis, computational mathematics, and software engineering. Information on section staff, visitors, workshops, and seminars is found in the appendices. digital.library.unt.edu/ark:/67531/metadc283389/
Applied Mathematical Sciences Research at Argonne, October 1, 1978-March 31, 1980
This report reviews the research activities of the Applied Mathematical Sciences Section for the period October 1, 1978, through March 31, 1980. The body of the report discusses various projects carried out in four major areas of research: applied analysis, computational mathematics, software engineering, and software clinics. Information on section staff, visitors, workshops, and seminars is found in the appendices. digital.library.unt.edu/ark:/67531/metadc283386/
An Approach to Implementing State Space Searches on Heterogeneous Systems of Multiprocessors
We report on experiments run on a set of shared-memory multiprocessors. Our goal was to demonstrate that one could conveniently utilize a set of shared-memory multiprocessors cooperatively working on typical state-space searches. We utilized a technology for writing portable code for multiprocessors, coded three depth-first state-space searches, and ran them on a set of multiprocessors. The final problem used substantial resources (over 65 hours on a single processor) and was successfully distributed over four distinct shared memory multiprocessors (2 Sequents and 2 Encores), reducing the time to perform the computation to slightly over 2 hours. digital.library.unt.edu/ark:/67531/metadc282841/
An Approach to Programming Multiprocessing Algorithms on the Denelcor HEP
In the process of learning how to write code for the Denelcor HEP, we have developed an approach that others may well find useful. We believe that the basic synchronization primitives of the HEP (i.e., asynchronous variables), along with the prototypical patterns for their use given in the HEP FORTRAN 77 User's Guide, form too low-level a conceptual basis for the formulation of multiprocessing algorithms. We advocate the use of monitors, which can be easily implemented using the HEP primitives. Attempts to solve substantial problems without introducing higher-level constructs such as monitors can produce code that is unreliable, unintelligible, and restricted to the specific dialect of FORTRAN currently supported on the HEP. Our experience leads us to believe that solutions which are both clear and efficient can be formulated using monitors. digital.library.unt.edu/ark:/67531/metadc283621/
Arcadia: Biological Resources
Map showing biological resources (birds, habitats, reefs, fishes, etc.) in the Arcadia region of the Florida coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66772/
Arcadia: Hydrology and Climatology
Map showing various hydrologic and climatologic aspects (rainfall, measurement stations, hurricane inundation zones, etc.) in the Arcadia region of the Florida coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66708/
Arcadia: Oil, Gas and Mineral Resources
Map showing mineral resources (oil, gas, sand, clay, etc.) in the Arcadia region of the Florida coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66724/
Arcadia: Socioeconomic Features
Map showing various sites and features (recreation sites, land use, landfills, historic sites, transportation, etc.) in the Arcadia region of the Florida coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66756/
Arcadia: Soils and Landforms
Map showing various kinds of soils and landforms in the Arcadia region of the Florida coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66740/
Argonne National Laboratory-East Site Environmental Report for Calendar Year 1988
The results of the environmental monitoring program at Argonne National Laboratory (ANL) for 1988 are presented and discussed. To evaluate the effect of ANL operations on the environment, sample collections were made on the site, at the site boundary, and off the ANL site for comparison purposes. digital.library.unt.edu/ark:/67531/metadc282973/
Argonne Solar Energy Program Annual Report : Summary of Solar Program Activities for Fiscal Year 1979
This report describes the R&D work done at Argonne National Laboratory on solar energy technologies during the period October 1, 1978, to September 30, 1979. Technical areas included in the ANL solar program are solar energy collection, heating and cooling, thermal energy storage, ocean thermal energy conversion, photovoltaics, biomass conversion, satellite power systems, and solar liquid-metal MHD power systems. digital.library.unt.edu/ark:/67531/metadc283384/
Argonne Solar Energy Program Annual Report : Summary of Solar Program Activities for Fiscal Year 1979
This report describes the R&D work done at Argonne National Laboratory on solar energy technologies during the period October 1, 1978, to September 30, 1979. Technical areas included in the ANL solar program are solar energy collection, heating and cooling, thermal energy storage, ocean thermal energy conversion, photovoltaics, biomass conversion, satellite power systems, and solar liquid-metal MHD power systems. digital.library.unt.edu/ark:/67531/metadc283385/
An Assessment and Comparison of Fuel Cells for Transportation Applications
Fuel cells offer the potential of a clean, efficient power source for buses, cars, and other transportation applications. When the fuel cell is run on methanol, refueling would be as rapid as with gasoline-powered internal combustion engines, providing a virtually unlimited range while still maintaining the smooth and quiet acceleration that is typical for electric vehicles. digital.library.unt.edu/ark:/67531/metadc282987/
Assessment of Impact of Advanced Energy Transmission Fluids on District Heating and Cooling Systems : (Phase 1)
Argonne National Laboratory (ANL), under sponsorship of the US Department of Energy (DOE) Office of Buildings and Community Systems, has embarked upon a comprehensive, long-range program to develop high-performance advanced energy transmission fluids for use in district heating and cooling (DHC) systems. ANL has the lead technical role in this DOE program. These advanced fluids will substantially reduce flow frictional losses and enhance energy transfer. In system enhancement scoping studies conducted by ANL, the fluids yielded potentially significant upfront capital equipment cost reductions by allowing the use of smaller pipes, pumps, heat exchangers, and storage tanks as well as reductions in operational costs. This report presents the first-phase results of assessment of impact of the advanced fluids on DHC systems. Future reports will focus on assessment of impact on hardware performance, capital equipment, and operation costs. digital.library.unt.edu/ark:/67531/metadc282828/
An Assessment of the Performance of Heat Exchanger Materials in Fluidized-Bed Combustors
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. This includes the review of design rules for thermoplastic materials used as pipes, a survey of candidate materials and available mechanical properties data, and mechanical properties testing to obtain baseline data on a candidate thermoplastic material extruded as pipe. digital.library.unt.edu/ark:/67531/metadc282799/
Atchafalaya Bay: Active Coastal Processes
Map showing factors that affect the shoreline and wetlands (flood surges, control structures, shoreline stabilization, etc.) in the Atchafalaya Bay region of the Mississippi Deltaic Plain area of the coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66929/
Atchafalaya Bay: Biological Resources
Map showing biological resources (birds, oysters, fishes, grasses, etc.) in the Atchafalaya Bay region of the Mississippi Deltaic Plain area of the coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66941/
Atchafalaya Bay: Climatology and Hydrology
Map showing hydrologic resources (water quality, groundwater availability, precipitation, etc.) in the Atchafalaya Bay region of the Mississippi Deltaic Plain area of the coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66917/
Atchafalaya Bay: Oil and Gas Infrastructure and Mineral Resources
Map showing mineral resources (oil, gas, sand, gravel, etc.) in the Atchafalaya Bay region of the Mississippi Deltaic Plain area of the coastline. Scale 1:100,000. digital.library.unt.edu/ark:/67531/metadc66893/