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  Partner: UNT Libraries Government Documents Department
 Decade: 1970-1979
 Collection: Technical Report Archive and Image Library
Atlas of Western Surface-Mined Lands Coal, Uranium, and Phosphate

Atlas of Western Surface-Mined Lands Coal, Uranium, and Phosphate

Date: January 1978
Creator: Evans, A. Kent
Description: Atlas of surface mines in excess of 10 acres in operation prior to 1976 in the 11 western contiguous states plus North Dakota and South Dakota.
Contributing Partner: UNT Libraries Government Documents Department
The Atomic Spectrum of Neptunium

The Atomic Spectrum of Neptunium

Date: May 1976
Creator: Fred, Mark; Tompkins, Frank S.; Blaise, Jean E.; Camus, Pierre & Verges, Jean
Description: A description and interpretation of the atomic spectrum of neptunium are given. Wavelengths were measured for 6096 spectrum lines in the range 3793 to 38,812 cm⁻¹ (26,353 to 2575 A), of which 2526 were classified as transitions between 329 odd levels and 130 even levels of neutral neptunium (Np I). The data are presented in five tables.
Contributing Partner: UNT Libraries Government Documents Department
Automated Approach to Quantitative Error Analysis in Neutron Transport Calculations

Automated Approach to Quantitative Error Analysis in Neutron Transport Calculations

Date: September 1976
Creator: Bareiss, Erwin H. & Derstine, Keith L.
Description: A method is described how a quantitative measure for the robustness of a given transport theory code for coarse network calculations can be obtained. A code, that performs this task automatically and at only nominal cost, is described and has been implemented for slab geometry. This code generates also user oriented benchmark problems which exhibit the analytic behavior at interfaces.
Contributing Partner: UNT Libraries Government Documents Department
Automatic Indexing: A State-of-the-Art Report

Automatic Indexing: A State-of-the-Art Report

Date: February 1970
Creator: Stevens, Mary Elizabeth
Description: Report issued by the U.S. National Bureau of Standards discussing results of a survey conducted on automatic mechanized indexing and data processing. As stated in the introduction, "it has concentrated on the major developments in and related demonstrations of automatic indexing potentialities. Examples are also given of indexes compiled by machine and of potentially related research efforts in such areas as natural language text searching, statistical association techniques used for search and retrieval, and proposed systems for concept processing" (p. 1). This report includes an illustration.
Contributing Partner: UNT Libraries Government Documents Department
Automatic Measurement of Network Parameters: A Survey

Automatic Measurement of Network Parameters: A Survey

Date: June 1976
Creator: Beatty, Robert William
Description: Report issued by the Bureau of Standards over a survey conducted on measurement methods of network parameters. As stated in the introduction, "this paper is concerned with the development of automatic methods of measuring basically the magnitudes and phase differences, or the complex ratio of two sinusoidal voltages, and applications of this capability to determining complex reflection coefficients and transmission coefficients and group delay times of electrical networks" (p. 1). This report includes tables, and illustrations.
Contributing Partner: UNT Libraries Government Documents Department
Autoradiographic Technique for Rapid Inventory of Plutonium-Containing Fast Critical Assembly Fuel

Autoradiographic Technique for Rapid Inventory of Plutonium-Containing Fast Critical Assembly Fuel

Date: October 1977
Creator: Brumbach, S. B. & Perry, R. B.
Description: A nondestructive autoradiographic technique is described which can provide a verification of the piece count and the plutonium content of plutonium-containing fuel elements. This technique uses the spontaneously emitted gamma rays from plutonium to form images of fuel elements on photographic film. Autoradiography has the advantage of providing an inventory verification without the opening of containers or the handling of fuel elements. Missing fuel elements, substitution of nonradioactive material, and substitution of elements of different size are detectable. Results are presented for fuel elements in various storage configurations and for fuel elements contained in a fast critical assembly.
Contributing Partner: UNT Libraries Government Documents Department
Autoradiography as a Safeguards Inspection Technique for Unirradiated LWR Fuel Assemblies

Autoradiography as a Safeguards Inspection Technique for Unirradiated LWR Fuel Assemblies

Date: May 1978
Creator: Brumbach, S. B. & Perry, R. B.
Description: A nondestructive autoradiographic method is described which can provide a verification that rods in the interior of unirradiated LWR fuel assemblies contain low-enriched uranium. Sufficient absorber must be used to reduce contributions to image density by beta radiation from uranium-238 daughters. When appropriate absorbers are used, the density of the image of a uranium-containing fuel rod is proportional to the uranium-235 enrichment in that rod. Exposure times as short as 1.5 hours can be achieved by using fast film and intensifying screens. Methods are discussed for reducing contributions to the image density of any single rod from radiation produced by all other rods in the assembly. The technique is useful for detecting missing rods, dummy rods, and rods containing depleted uranium. These defects can be detected by visual inspection of the autoradiographs. In its present state of development, the technique is not sensitive enough to reliably detect the difference between the various uranium-235 enrichments encountered in current BWR fuel assemblies. Results are presented for field tests of the technique at BWR and PWR facilities.
Contributing Partner: UNT Libraries Government Documents Department
Baseline Energy Consumption Forecasts for Transportation: A Review and Evaluation

Baseline Energy Consumption Forecasts for Transportation: A Review and Evaluation

Date: May 1976
Creator: Koppelman, Frank; O'Sullivan, Pat & Collum, Tom
Description: A baseline projection of energy consumption is needed to estimate the potential energy savings from proposed transport technology and operational improvements. The Reference Energy System projection by Brookhaven National Laboratories and that which Stanford Research Institute produced for Gulf Oil are reviewed here. Attention is focused on the growth rate assumptions of the forecasts and the allowances made for the sensitivity of transport demand and technological efficiency to fuel price changes. The alternative trajectories of energy use are examined for automobile, bus and intercity air and rail passenger travel, and also for freight movement. Little, if any, justification can be found for many of the assumptions used to estimate transport demand and energy intensiveness. The assumptions underlying the Brookhaven National Laboratories projections are more explicit on changes in energy efficiency and energy price and shifts in transport patterns. However, the relationship of automobile travel, the largest component, to energy price is not specified clearly. The Stanford projection is based on seemingly arbitrary assumptions about changes in travel patterns and energy efficiency with no reference to the market process which must bring them about. It is concluded that the Brookhaven projection is a reasonable interim benchmark. Its structure should improve by ...
Contributing Partner: UNT Libraries Government Documents Department
Bay Springs Canal Surge Study, Tennessee-Tombigbee Waterway, Mississippi and Alabama: Hydraulic Model Investigation

Bay Springs Canal Surge Study, Tennessee-Tombigbee Waterway, Mississippi and Alabama: Hydraulic Model Investigation

Date: June 1978
Creator: Tate, Charles H., Jr.
Description: Partial abstract: "A 1:80-scale hydraulic model was used to study flow conditions in the canal downstream of the proposed Bay Springs Lock. The original design and plan of operation caused severe conditions in the canal and required modification (design 2) of the lock discharge system and lower approach geometry. Based on the results of this study, the design 2 diffuser and lower approach with a 2-min emptying valve schedule should provide satisfactory navigation conditions downstream of the project."
Contributing Partner: UNT Libraries Government Documents Department
Bench Scale Study of the Vacuum Freezing Ejector Absorption Process

Bench Scale Study of the Vacuum Freezing Ejector Absorption Process

Date: November 1971
Creator: Koretchko, J. & Hajela, G.
Description: None
Contributing Partner: UNT Libraries Government Documents Department