2,765 Matching Results

Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.

Uranium hydrogeochemical and stream sediment reconnaissance in Lincoln and Flathead Counties, northwest Montana (open access)

Uranium hydrogeochemical and stream sediment reconnaissance in Lincoln and Flathead Counties, northwest Montana

Between mid-May and late June 1976, 3409 water and water-transported sediment samples were collected from 1781 locations spread over an approximate 17000-km/sup 2/ area of northwestern Montana. All of the samples were analyzed for total uranium at the LASL, using standardized procedures and rigorous quality controls, the waters by fluorometry and the sediment (and those waters with greater than 10 ppb uranium) by delayed-neutron counting methods. All of the field collection, treatment, and packaging of the samples was performed following strict LASL specifications. The uranium concentrations measured in the waters range from undetectable (less than 0.2) ppb to 173.6 ppb, but average only 0.66 ppb. The low uranium concentrations in the waters of this area are thought to be due primarily to a general lack of readily soluble uranium and dilution with spring runoff. Those locations which did have abnormally high uranium were examined more closely, and follow-up field examinations are recommended in the vicinity of some of these sites. The uranium content of the sediment samples range from 0.5 ppM to 52.2 ppM and average 4.56 ppM. Sample locations with high and/or anomalous uranium values were examined with respect to the local geology, water chemistry, and other relevant factors. …
Date: May 1, 1977
Creator: Aamodt, P. L.
Object Type: Report
System: The UNT Digital Library
Uranium Hydrogeochemical and Stream Sediment Reconnaissance in Lincoln and Flathead Counties, Northwest Montana (open access)

Uranium Hydrogeochemical and Stream Sediment Reconnaissance in Lincoln and Flathead Counties, Northwest Montana

From abstract: Between mid-May and late June 1976, 3409 water and water-transported sediment samples were collected from 1781 locations spread over an approximate 17 000 kilometer area of northwestern Montana. All of the samples were analyzed for total uranium at the LASL, using standardized procedures and rigorous quality controls--the waters by fluorometry and the sediment (and those waters with >10 parts per billion uranium) by delayed-neutron counting methods.
Date: May 1977
Creator: Aamodt, Paul L.
Object Type: Report
System: The UNT Digital Library
Hydraulic fracture experiments in GT-1 and GT-2 (open access)

Hydraulic fracture experiments in GT-1 and GT-2

Hydraulic fracturing experiments were conducted in granite rock, at temperatures near 100 and 150/sup 0/C, in two wells 0.785 km (2575 ft) and 1.98 km (6500 ft) deep near Los Alamos, New Mexico. No unusual difficulty was observed in fracturing crystalline rock hydraulically. The apparent surface energy (energy required to create new fracture surface by breaking the rock) was measured as 100 J/m/sup 2/. Orientation of the deeper fracture was measured as N35/sup 0/E (+-5/sup 0/). The fraction of fluid injected into the rock that could be recovered at hydrostatic surface pressure was measured. The efficiency of recovery was as high as 92 percent after the fracture impedance was lowered by ''propping'' the fracture with sand. Permeability of the rock over the face of the fracture was compatible with laboratory measurements (10/sup -7/ to 10/sup -8/ darcys). Downhole pressures required to extend the fractures were about 150 and 340 bars (2175 and 4900 psi), respectively.
Date: February 1, 1977
Creator: Aamodt, R. L.
Object Type: Report
System: The UNT Digital Library
[Abilene City Council Minutes: 1977-1979] (open access)

[Abilene City Council Minutes: 1977-1979]

Ledger containing minutes of the City Council in Abilene, Texas documenting the group's discussions and activities from May 1977 through a special retreat session held June 25-26, 1979. A handwritten, alphabetical index is included at the front of the ledger.
Date: 1977-05-12/1979-06-26
Creator: Abilene (Tex.)
Object Type: Book
System: The Portal to Texas History
Prickly Pear, Yearbook of Abilene Christian University, 1977 (open access)

Prickly Pear, Yearbook of Abilene Christian University, 1977

Yearbook for Abilene Christian University in Abilene, Texas includes photos of and information about the school, student body, professors, and organizations. Index starts on page 360.
Date: 1977
Creator: Abilene Christian University
Object Type: Yearbook
System: The Portal to Texas History
Water Resources of the Maunabo Valley, Puerto Rico (open access)

Water Resources of the Maunabo Valley, Puerto Rico

Report providing information about the water resources of the Munabo Valley in southeastern Puerto Rico, including the principal source of water, chemical composition, hydraulic conductivities, average transmissivity, and suggestions for water supplementation.
Date: May 1977
Creator: Adolphson, D. G.; Seijo, M. A. & Robison, T. M.
Object Type: Report
System: The UNT Digital Library
Multicomponent mass transport model: theory and numerical implementation (discrete-parcel-random-walk version) (open access)

Multicomponent mass transport model: theory and numerical implementation (discrete-parcel-random-walk version)

The Multicomponent Mass Transfer (MMT) Model is a generic computer code, currently in its third generation, that was developed to predict the movement of radiocontaminants in the saturated and unsaturated sediments of the Hanford Site. This model was designed to use the water movement patterns produced by the unsaturated and saturated flow models coupled with dispersion and soil-waste reaction submodels to predict contaminant transport. This report documents the theorical foundation and the numerical solution procedure of the current (third) generation of the MMT Model. The present model simulates mass transport processes using an analog referred to as the Discrete-Parcel-Random-Walk (DPRW) algorithm. The basic concepts of this solution technique are described and the advantages and disadvantages of the DPRW scheme are discussed in relation to more conventional numerical techniques such as the finite-difference and finite-element methods. Verification of the numerical algorithm is demonstrated by comparing model results with known closed-form solutions. A brief error and sensitivity analysis of the algorithm with respect to numerical parameters is also presented. A simulation of the tritium plume beneath the Hanford Site is included to illustrate the use of the model in a typical application. 32 figs.
Date: May 1, 1977
Creator: Ahlstrom, S. W.; Foote, H. P.; Arnett, R. C.; Cole, C. R. & Serne, R. J.
Object Type: Report
System: The UNT Digital Library
Evaluation of Uranium Potential in Selected Pennsylvanian and Permian Units and Igneous Rocks in Southwestern and Southern Oklahoma: Final Report (open access)

Evaluation of Uranium Potential in Selected Pennsylvanian and Permian Units and Igneous Rocks in Southwestern and Southern Oklahoma: Final Report

Introduction: The areas of study include parts of the Wichita uplift, Arbuckle uplift, Hunton-Pauls Valley uplift, Central Oklahoma platform, Muenster-Waurika arch, and Anadarko basin (Fig. 1.1-1). Rocks examined include the Precambrian granite of the Arbuckle uplift, Cambrian igneous rocks of the Wichita uplift, and Pennsylvanian-Permian sedimentary rocks derived in large part from those two uplifts and, to a lesser extent, from the Ouachita system.
Date: June 15, 1977
Creator: Al-Shaieb, Zuhair; Shelton, John W.; Donovan, R. Nowell; Hanson, Richard E. & May, Richard T.
Object Type: Report
System: The UNT Digital Library
Utilization of melting techniques for borehole wall stabilization. [Applied to geothermal well production systems] (open access)

Utilization of melting techniques for borehole wall stabilization. [Applied to geothermal well production systems]

A research program on the Subterrene concept based on excavation by melting has been completed. Theoretical and experimental studies were made for a broad range of applications. Most recently, a study of Subterrene deep geothermal well production systems predicted that, compared to rotary-drilled wells, significant cost savings are possible, e.g., 2 and 4 million dollars for 10-km-deep wells and geothermal gradients of 25 and 40 K/km, respectively. It was also concluded that for most wells the rate of penetration of the melting bits should be increased several times over that attained in the Subterrene tests. Subterrene melting penetration tests showed that borehole glass liners can be formed in a wide variety of materials and structural characterization tests showed that tuff glass cylinders can be many times stronger in compression than the parent material. Also, the tests showed that the rock-glass liner permeability decreases rapidly with confining pressure. New melting devices are conceivable that could line rotary-drilled boreholes with rock glass or other materials with resultant improvements in well costs. With emphasis on borehole liners, an overview of Subterrene program results, data on rock-glass liners, and suggestions on how molten materials might be applied to the borehole wall as part of …
Date: January 1, 1977
Creator: Altseimer, J. H.
Object Type: Article
System: The UNT Digital Library
Ground Water in the Lajas Valley, Puerto Rico (open access)

Ground Water in the Lajas Valley, Puerto Rico

Abstract: Lajas Valley is plagued with problems of salinity and waterlogging the soils. Use of brackish (500 milligrams per liter) irrigation compounded ground water for the problem until an irrigation-drainage system was constructed in 1955. Lajas is an alluvium-filled limestone highlands. The alluvium, mostly clay and as much 300 feet (90 meters) thick, contains brackish ground water except in the recharge areas located along the foothills...Results from a digital model show that a network of discharge wells could alleviate waterlogging of the soils in the artesian area.
Date: March 1977
Creator: Anderson, Henry R.
Object Type: Report
System: The UNT Digital Library
San Antonio Register (San Antonio, Tex.), Vol. 45, No. 12, Ed. 1 Friday, July 1, 1977 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 45, No. 12, Ed. 1 Friday, July 1, 1977

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: July 1, 1977
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
San Antonio Register (San Antonio, Tex.), Vol. 45, No. 49, Ed. 1 Friday, March 18, 1977 (open access)

San Antonio Register (San Antonio, Tex.), Vol. 45, No. 49, Ed. 1 Friday, March 18, 1977

Weekly newspaper from San Antonio, Texas that includes local, state, and national news along with advertising.
Date: March 18, 1977
Creator: Andrews, U. J.
Object Type: Newspaper
System: The Portal to Texas History
Definition of Engineering Development and Research Problems Relating to the Use of Geothermal Fluids for Electric Power Generation and Nonelectric Heating (open access)

Definition of Engineering Development and Research Problems Relating to the Use of Geothermal Fluids for Electric Power Generation and Nonelectric Heating

The use of geothermal fluids for electric power generation and nonelectric purposes causes problems not normally encountered when pure water is used for similar purposes. These problems must be identified and means developed to overcome them before geothermal energy resources can become an important source of electric power or thermal energy in the United States. Research and development projects aimed at solving problems arising from the use of geothermal fluids from known sources in the United States are listed. Problem areas covered are: impact on engineering design caused by chemical, thermodynamic, and transport properties of geothermal fluids; scaling and sludge formation; gases, volatile brine constituents, condensate chemistry; environmental problems. The research projects identified are general in nature and are not site specific. (JGB)
Date: November 1, 1977
Creator: Apps, J. A.
Object Type: Report
System: The UNT Digital Library
Theoretical and experimental evaluation of waste transport in selected rocks: 1977 annual report of LBL Contract No. 45901AK. Waste Isolation Safety Assessment Program: collection and generation of transport data (open access)

Theoretical and experimental evaluation of waste transport in selected rocks: 1977 annual report of LBL Contract No. 45901AK. Waste Isolation Safety Assessment Program: collection and generation of transport data

During fiscal year 1977, the following subtasks were performed. (1) Thermodynamic data were tabulated for those aqueous complexes and solid phases of plutonium, neptunium, americium, and curium likely to form in the environment. (2) Eh-pH diagrams were computed and drafted for plutonium, neptunium, americium and curium at 25/sup 0/C and one atmosphere. (3) The literature on distribution coefficients of plutonium, neptunium, americium, and curium was reviewed. (4) Preliminary considerations were determined for an experimental method of measuring radionuclide transport in water-saturated rocks. (5) The transport mechanisms of radionuclides in water-saturated rocks were reviewed. (6) A computer simulation was attempted of mass transfer involving actinides in water-saturated rocks. Progress in these tasks is reported. Subtasks 1, 2, 3, and 4 are complete. The progress made in subtask 5 is represented by an initial theoretical survey to define the conditions needed to characterize the transport of radionuclides in rocks. Subtask 6 has begun but is not complete.
Date: September 1, 1977
Creator: Apps, J. A.; Benson, L. V.; Lucas, J.; Mathur, A. K. & Tsao, L.
Object Type: Report
System: The UNT Digital Library
Preliminary Assessment of the Health and Environmental Effects of Coal Utilization in the Midwest. Volume 1. Energy Scenarios, Technology Characterizations, Air and Water Resource Impacts, and Health Effects (open access)

Preliminary Assessment of the Health and Environmental Effects of Coal Utilization in the Midwest. Volume 1. Energy Scenarios, Technology Characterizations, Air and Water Resource Impacts, and Health Effects

This report presents an initial evaluation of the major health and environmental issues associated with increased coal use in the six midwestern states of Illinois, Indiana, Michigan, Minnesota, Ohio, and Wisconsin is presented. Using an integrated assessment approach, the evaluation proceeds from a base-line scenario of energy demand and facility siting for the period 1975 to 2020. Emphasis is placed on impacts from coal extraction, land reclamation, coal combustion for electrical generation, and coal gasification. The range of potential impacts and constraints is illustrated by a second scenario that represents an expected upper limit for coal utilization in Illinois. Included are: (1) a characterization of the energy demand and siting scenarios, coal related technologies, and coal resources, and (2) the related impacts on air quality, water availability, water quality, and human health.
Date: January 1977
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Preliminary Assessment of the Health and Environmental Impacts of Fluidized-Bed Combustion of Coal as Applied to Electrical Utility Systems (open access)

Preliminary Assessment of the Health and Environmental Impacts of Fluidized-Bed Combustion of Coal as Applied to Electrical Utility Systems

The objective of this study was to assess the health and environmental impacts of fluidized-bed combustion of coal (FBC), specifically as applied to base-load generation of electrical energy by utilities. The public health impacts of Fluidized-Bed Combustion (FBC) plants are expected to be quite similar to those for Low Sulfur Coal (LSC) and Flue Gas Desulfurization (FGD) plants because all appear to be able to meet Federal emission standards; however, there are emissions not covered by standards. Hydrocarbon emissions are higher and trace element emissions are lower for FBC than for conventional technologies. For FBC, based on an analytical model and a single emission data point, the polycyclic organic material decreases the anticipated lifespan of the highly exposed public very slightly. Added health protection due to lower trace element emissions is not known. Although there is a large quantity of solid wastes from the generating plant, the environmental impact of the FBC technology due to solid residue appears lower than for FGD, where sludge management requires larger land areas and presents problems due to the environmentally noxious calcium sulfite in the waste. Fixing the sludge may become a requirement that increases the cost of wet-limestone FGD but makes that system …
Date: February 1977
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Proceedings of the 1977 Symposium on Instrumentation and Process Control for Fossil Demonstration Plants. July 13-15, 1977 Hyatt Regency O'Hare, Chicago, Illinois (open access)

Proceedings of the 1977 Symposium on Instrumentation and Process Control for Fossil Demonstration Plants. July 13-15, 1977 Hyatt Regency O'Hare, Chicago, Illinois

This document covers topics in the process control processes and instrumentation for fossil conversion plants.
Date: 1977?
Creator: Argonne National Laboratory
Object Type: Report
System: The UNT Digital Library
Radiological and Environmental Research Division Annual Report: Part 2, Center for Human Radiobiology, July 1976-June 1977 (open access)

Radiological and Environmental Research Division Annual Report: Part 2, Center for Human Radiobiology, July 1976-June 1977

Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to the Center for Human Radiobiology. This report discusses a study of the health status of the former employees of a plant that processed thorium ores as well as a study on the oxidation of soluble plutonium.
Date: 1977?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Object Type: Report
System: The UNT Digital Library
Radiological and Environmental Research Division Annual Report: Part 3, Ecology, January-December 1976 (open access)

Radiological and Environmental Research Division Annual Report: Part 3, Ecology, January-December 1976

Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to ecology. This report includes studies of pollutants such as sulfur dioxide and trace elements entering the environment from the combustion of fossil fuels, and investigations of radionuclides, which could be discharged from nuclear energy facilities.
Date: 1977?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Object Type: Report
System: The UNT Digital Library
Radiological and Environmental Research Division Annual Report: Part 3, Ecology, January-December 1977 (open access)

Radiological and Environmental Research Division Annual Report: Part 3, Ecology, January-December 1977

Annual report of the Argonne National Laboratory Radiological and Environmental Research Division regarding activities related to ecology. This report discuses programs to study the role of physical processes involved in transferring pollutants from the combustion of fossil fuels to the water surface, to study the biogeochemical behavior of transuranic elements from the Windscale reprocessing plant, and to study the effects of pollutants from power plants on aquatic organisms in the Great Lakes program.
Date: 1977?
Creator: Argonne National Laboratory. Radiological and Environmental Research Division.
Object Type: Report
System: The UNT Digital Library
American Arms Sales to Iran and Power Politics in the Middle East (open access)

American Arms Sales to Iran and Power Politics in the Middle East

This thesis examines and evaluates the questions involved in American arms sales to Iran and Egypt. The first two chapters outline the historical background and present detailed analyses of Iran's political situations prior to 1968 and United States policy toward it in that period of time. Chapter Three considers the American policies towards Egypt and the United States arms sales to that country. The main argument of the thesis appears in chapter Four which explains the objectives of Iran's government in buying American arms and the United States government's objectives in selling arms to Iran. Conclusions on the study comprise the fifth chapter.
Date: December 1977
Creator: Aryanpur Kashani, Khosrow
Object Type: Thesis or Dissertation
System: The UNT Digital Library
National waste terminal storage program bibliography (open access)

National waste terminal storage program bibliography

In February 1976, the Energy Research and Development Administration (ERDA) announced a greatly expanded waste management program for defense and commercial radioactive waste. In that announcement, ERDA indicated that the Oak Ridge Operations Office (ORO) of ERDA would have lead responsibility for overall coordination of the expanded commercial geologic disposal program and that an Office of Waste Isolation (OWI) would be created within Union Carbide Corporation-Nuclear Division (UCC-ND) with the responsibility for program management of that activity. This bibliography lists many of the documents authored since 1958 by UCC-ND's technical personnel, consultants, and subcontractors as part of the geologic waste disposal programs at Oak Ridge National Laboratory and the current National Waste Terminal Storage (NWTS) Program. Future editions will contain new documents as well as other prior-year documents which, because of our schedule, we were unable to identify, locate, and include in this first edition. Longer-range plans include broadening the scope of coverage to include documents authored by other NWTS Program participants. This edition, as well as future editions, will list only those documents that have been processed through ERDA's Technical Information Center for public availability from the National Technical Information Service, Springfield, Virginia. Full reference and citation information appears …
Date: April 30, 1977
Creator: Asher, J. M.
Object Type: Report
System: The UNT Digital Library
Office of Waste Isolation progress report, October 1977 (open access)

Office of Waste Isolation progress report, October 1977

Technical projects, facility projects, planning and analysis, and regulatory affairs are reported for OWI's portion of the National Waste Terminal Storage program. (DLC)
Date: November 18, 1977
Creator: Asher, J.M. & Rhines, R.C. (eds.)
Object Type: Report
System: The UNT Digital Library
The Oklahoma Daily (Norman, Okla.), Vol. 63, No. 111, Ed. 1 Tuesday, February 22, 1977 (open access)

The Oklahoma Daily (Norman, Okla.), Vol. 63, No. 111, Ed. 1 Tuesday, February 22, 1977

Student newspaper of the University of Oklahoma in Norman, Oklahoma that includes national, local, and campus news along with advertising.
Date: February 22, 1977
Creator: Asseo, Laurie
Object Type: Newspaper
System: The Gateway to Oklahoma History