Technical Report Archive & Image Library (TRAIL) - 84 Matching Results
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- Acceleration Due to Gravity at the National Bureau of Standards
- Report describing the determination of the absolute value of the acceleration due to gravity at the National Bureau of Standards.
- Acid-Base Behavior in Aprotic Organica Solvents
- Report presenting the National Bureau of Standards' research program designed to determine and explain acid-base behavior in aprotic organic solvents and to develop methods and reference materials for determining total acid and base content and relative strengths of acids and bases in the media.
- Acoustic Flowmeter Prototype Evaluation Tests
- Summary: "Prototype tests of an acoustic flowmeter system were made in a 24-ftdiam power penstock at Oahe Dam to evaluate the system prior to permanent installation in the outlet works at Summersville Dam. Comparative discharge measurements included acoustic, penstock pressure-momentum (Gibson), turbine model test ratings, scroll-case pressure differential (Winter-Kennedy flowmeter), and surge tank volume changes. The acoustic flowmeter measurements were very consistent and many of the comparisons were within 1%. The location of the measuring section for a single-path acoustic flowmeter must be selected to give a known or measurable relation between the flow pattern of the whole section and that along the acoustic path" (p. xi).
- An Analytical Model for Predicting Cross-Country Vehicle Performance, Appendix B: Vehicle Performance in Lateral and Longitudinal Obstacles (Vegetation), Volume 1: Lateral Obstacles
- First part of an appendix that accompanies a study meant to develop a model for predicting the cross-country performance of military vehicles in various conditions. This volume describes a segment of tests to determine the ability of vehicles to negotiate lateral obstacles (e.g., trees, boulders, holes, mounds, etc.).
- Application of Dislocation Theory to Analysis of Vertical Displacements at the Ground Surface Caused by the Duryea Event
- This report documents the use of the dislocation theory to analyze measured vertical displacements across a fault near the Duryea underground nuclear explosion.
- Calculation of Cavity Radius Using an Average Potential Energy Function
- This report presents an equation used for calculating the radii of non-spherical cavities formed by underground nuclear explosions.
- Changes in Stratigraphic Nomenclature by the U.S. Geological Survey, 1968
- A table that displays stratigraphic names. It discusses which can be adopted, revised, re-instated, and abandoned.
- Chemical Technology Division Annual Progress Report, May 31, 1968
- Report documenting the ongoing research of the Oak Ridge National Laboratory's Chemical Technology Division. This report includes tables, diagrams, graphs, and articles related to chemical technology.
- Cold-Mold Arc Melting and Casting
- Report issued by the U.S. Bureau of Mines providing updates and additional information related to cold-mold arc melting and casting. Abstract: "This bulletin reviews the historical background of the cold-mold arc-melting technology, with specific references to the development that led to homogeneous zirconium ingots. Descriptions are given of modern production arc-furnaces for vacuum melting of both exotic and conventional metals. Besides zirconium, specific data are given for production of chromium, thorium, and copper. The development of the skull-casting technique for titanium is detailed, and the application of the technique to such refractory metals as molybdenum and tungsten is described. Factors of operation of the apparatus and furnace design are considered" (p. 1).
- Cold-Mold Arc Melting and Casting
- Report issued by the Bureau of Mines discussing the cold-mold arc-melting technology and techniques. As stated in the introduction, "the objectives of this book are twofold: To accumulate and update Bureau of Mines contributions to cold-mold arc melting and casting, and, by addition of pertinent chapters, to provide production melters and researchers with the best possible view of the overall technique" (p. 1). This report includes tables, illustrations, and photographs.
- Colorimetry
- "The definition of color, as a characteristics of light, and the basic principles of its measurement are given. The reduction of spectrophotometric data to three chromaticity coordinates by means of the three-function CIE standard observer system for colorimetry is described. Various methods of direct colorimetry, and visual and photoelectric methods of colorimetry by differences from material standards are treated" (p. 1).
- Comparison of Two Sodium-Cooled, 1000 MegaWatt Fast Reactor Concepts: Task 1 Report of 1000 MegaWatt Liquid Metal Fast Breeder Reactor Follow-On Work
- From introduction: "The development of one or more nuclear steam supply system concepts, with certain trade-off studies to aid in the definition of these concepts. The selection of a reference concept for further study."
- Competition in the Nuclear Power Supply Industry
- From purpose and scope: The Justice Department and the AEC embarked upon this joint study so as to provide the basis for preparation and consideration of guidelines for the nuclear industry best designed to foster vigorous growth and to provide a sound basis for government action.
- Computer Technique for Tracing Seismic Rays in Two-Dimensional Geological Models
- The following report describes the computer technique for tracing seismic rays in two-dimensional geological models in the state during the time this report was written, and presents some preliminary results.
- Computer Technique for Tracing Seismic Rays in Two-Dimensional Geological Models: Explanation of Figures 7a-d, 8a-c and 9a-d
- The following report explains the seismic ray models presented in this report.
- Conceptual Design Study of a 250-Million Gallons Per Day Combined Vertical Tube-Flash Evaporator Desalination Plant
- Report containing a design study of a 250 million gallons per day desalination plant. Contains a description of the desalination process, information regarding the design's efficiency, estimated capital and production costs
- Copper Leaching Practices in the Western United States
- Report issued by the U.S. Bureau of Mines discussing copper leaching in the Western United States. As stated in the introduction, "the purpose of this report is to describe and discuss the different leaching and recovery methods currently employed in the production of copper from low-grade ores in the Western states" (p. 1). This report includes tables, illustrations, and photographs.
- Cosmic Ray Produced Ar37 and Ar39 Activities in Recently Fallen Meteorites
- Several methods of determining meteorite ages depend ages upon nuclides formed by cosmic ray interactions. The tactic assumption is always made that the intensity of cosmic radiation does not vary in time or space. However it is known that the intensity of cosmic radiation at the earth varies with the solar activity. The spectrum of cosmic ray protons and alpha particles exhibit a marked drop at the low energy end (<1.5 GeV) and the intensity in the region appears to follow the 11 year cycle of solar activity. The low energy cosmic rays increase in intensity with a decrease in solar activity. These changes in cosmic ray intensities are generally attributed to a modulation of the galactic cosmic radiation by the magnetic fields associated with the outward streaming solar material, the solar wind. One would therefore expect that the cosmic ray intensity several astronomical units from the sun is greater than the intensity at the earth's orbit, particularly at the low energy end of the spectrums.
- A Descriptive Catalog of Selected Aerial Photographs of Geologic Features in the United States
- From introduction: The U.S. Geological Survey has selected and assembled sets of photographs that illustrate numerous types of geologic features in the United States. This catalog lists these special sets of photographs that are available for purchase and describes the features illustrated. One reduced photograph from each set is shown on the back pages of this catalog to assist the purchaser in his selection.
- Design and Economic Study of a Gas Turbine Powered Vapor Compression Plant for Evaporation of Seawater
- Report that "presents the results of an engineering study of the design and economics of a single purpose gas tubine powered vapor compression cycle seawater desalting plant." (p. 1)
- Design and Testing of a High-Heat Flux Electron-Bombardment Heater
- Report issued by the Argonne National Laboratory discussing the testing of an electron-bombardment heater. As stated in the abstract, "the applications of electron-bombardment heating to liquid-metal heat transfer and reactor safety experiments are discussed. The design of a high-heat-flux, electron-bombardment heater (EBH) is presented" (p. 7). This report includes tables, illustrations, and photographs.
- Determining the "State of Charge" of Nickel-Cadmium Batteries by Farad Capacitance Measurements
- From abstract: "A rapid simple method has been developed for determining state of charge of the widely used nickel-cadium rechargeable battery. The method described is based on the experimentally verified relationship between farad capacitance and state of charge."
- Development of Propane Hydrate Desalting Process
- Report that summarizes research on the propane hydrate saline water conversion process. Contains the design of the plant where the testing occurred as well as summaries of the tests.
- Development Report Number 7: Saline Water Conversion Test Bed Plant, Freeport, Texas
- Report regarding the ninth Development Run of Saline Water Conversion Demonstration Plant Number 1. Primary objectives include studying "various aspects of heat transfer and sea water and condensate treatment and their effect on the Multiple-Effect Long-Tube-Vertical Evaporation Process" (p. 1).
- Dibutyl Carbitol Solvent Extraction of Polonium-210 from Nitric Acid Solutions of Irradiated Bismuth
- Abstract: "A continuous countercurrent solvent extraction process utilizing dibutyl carbitol as the extractant has been developed for separating 210Po from large amounts of associated bismuth. Both laboratory and pilot plant data demonstrate the process is a suitable headend step in recovery of kilogram quantities of 210Po. Typically, the extraction process recovers over 98% of the 210Po, essentially free from bismuth (Bi DF>1500), in a dilute HNO3 solution suitable as a starting material for final concentration and purification steps."
- Diesel Exhaust Contamination of Tunnel Air
- Report issued by the Bureau of Mines on investigations of air contamination in tunnels due to diesel exhaust. Air samples were taken inside tunnels and measured for carbon dioxide, carbon monoxide, and nitrogen oxides. This report includes tables and graphs.
- Dimension Stone
- Report issued by the U.S. Bureau of Mines discussing the building material, dimension stone. As stated in the introduction, "the pertinent properties and principal specifications for stone are described along with exploration, mining, finishing, and use technology. A brief history and geologic background are also included" (p. 2). This report includes maps, tables, illustrations, and photographs.
- The Escape of Fission Products From an Uranium Rod; Application to the B. N. L. Reactor
- Technical report covering the functions of the Oak Ridge reactor, difficulties encountered with cartridge failures in the Oak Ridge reactor, and possible solutions including the incorporation of leak detection systems into the design of the reactor.
- Evaluation of Concrete and Related Materials for Desalination Plants
- Report examining the uses of concrete in evaporator-type desalting plants. Different types of concrete are evaluated, as well as structures, accessory coatings and sealants, reinforcement materials, and microstructures.
- Evaluation of Concrete and Related Materials for Desalination Plants: Second Annual Progress Report
- Report investigating concrete for use in a sea water desalination plant. Concretes containing both natural and limestone aggregates were tested under the temperature, pressure, salinity, and structural stress conditions that could be expected in such a plant.
- Freon-12 Hydrate Desalting Process
- Report that "evaluates an operation program of a hydrate process for the desalination of sea water in a 10,000 GPD plant located at the Office of Saline Water Research and Development Test Station (Wrightsvile Beach Test Facility at Wrightsville Beach, New Carolina) for the period march 1967 through July 1968" (p. i).
- FUDGE 4A: A Computer Program for Gamma Dose Rate Distribution from Rectangular Sources
- Report issued by the Brookhaven National Laboratory discussing the recently modified FUDGE 4A computer program. As stated in the introduction, "this report presents the details and technical information required for the proper use of FUDGE 4A" (p. 1). This report includes tables, and illustrations.
- Geodimeter Measurement of Earth Strains on Rainier Mesa, Nevada Test Site
- Abstract: "Geodimeter surveys were made on four traverses near the east scarp of Rainier Mesa between October 27, 1967 and April 26, 1968. These measurements were made in order to determine if an changes in distance between survey stations had resulted from downslope creep of the rocks behind the scarp, or if any displacements had resulted from nuclear explosions beneath the mesa and in adjacent areas. A persistent small but possibly significant, slopeward displacement was measured along one traverse and may represent detachment of a large block; monitoring for an additional period of time is recommended."
- Geologic Studies, Project Gnome, Eddy County, New Mexico
- From abstract: For Project Gnome, part of the Plowshare Program to develop peaceful uses for nuclear energy, a nuclear device was detonated December 10, 1961, underground in rack salt of the Permian Salado Formation southeast of Carlsbad, New Mexico. The Geological Survey's investigations on behalf of the U.S. Atomic Energy Commission provided basic geologic and geophysical information needed to define preshot and postshot geologic and hydrologic conditions at and near the site. This report describes the geology of the site, some physical and chemical properties of the rocks, and the known effects of the nuclear detonation on the rocks of the site.
- Geology of the Great Smoky Mountains National Park. Tennessee and North Carolina
- From Preface: "The present account summarizes the results of a long investigation of the rocks of the Great Smoky Mountains (1946-55) by geologists of the staff of the U.S. Geological Survey, in collaboration with those of the Tennessee Division of Geology. The technical details of this investigation have already been set forth at length in professional papers of the U.S. Geological Survey. The present account contains the gist of these findings about the rocks of the mountains, and is accompanied by a map and structure sections in which the surface and underground extent of the rocks are displayed."
- Geology of the Hot Sulphur Springs quadrangle, Grand County, Colorado
- Scope and Purpose of Work: The quadrangle was mapped as part of the U.S. Geological Survey program of classifying and evaluating lands in the Public Domain. Mineral rights for coal had been retained in parts or all of Tps. 2 and 3 N., Rs. 77, 78, and 79 W. These areas are in part underlain by sedimentary rocks of Late Cretaceous(?) and early Tertiary age (Middle Park Formation), and in North Park these rocks are called the Coalmont Formation and contain coal. The chief purpose of the work was to map and study any coal beds found and to make a detailed geologic map that can be used as part of a geological atlas of the United States.
- High heat flux heater development status report
- The development of a high heat flux heater for use in corrosion rate and stress-rupture tests of fuel cladding materials in a sodium environment is described.
- Hydrogenation of Coal and Tar
- From Abstract: "This bulletin traces the development of high-pressure, coal and tar hydrogenation technology, based on intensive review of the pertinent literature. The bulletin was written as a part of the Bureau of Mines research program on synthetic liquid fuels. It covers the history and economics of the process; the chemical aspect of hydrogenation of coal, tar, and middle oil; the engineer aspect of converting coal and tar to liquid fuels, principally gasoline; and the equipment of the process."
- Hydrogenation of Ethylene on Metallic Catalysts
- Catalyzed hydrogenation in the presence of unsupported catalysts, especially of evaporated films of pure metals is discussed.
- Infrared Spectroscopy of Carbohydrates: A Review of the Literature
- Report presenting of survey of the literature on the infrared spectroscopy of carbohydrates in order to assemble and systematize information in this field. Discusses principles and instrumentation, sampling techniques, comparison of samples, and the interpretation of the spectra. In addition, examples are discussed of the use of infrared spectra for qualitative and quantitative purposes and in the determination of structure. Special techniques are briefly described.
- Investigation of Membrane Stack Resistance Increase With a Natural Brackish Water
- From Introduction: "An investigation was undertaken by the Bureau of Reclamation to identify the cause of causes of this problem with a particular brackish water. The resistance increase of is of great concern principally because of the increase in power consumption that ultimately contributes to a higher cost for product water. Reports show that membrane stack resistance has increased as much as 200 percent over period of several days."
- Investigation of Nonmetallic Waterstops, Report 6: Effect of Exposure
- Report describing the results of experiments to test samples of rubber, synthetic rubber, and polyvinylchloride (PVC) to determine their suitability for use in nonmetallic waterstops. During the tests, each of the samples was exposed to various conditions and environments before evaluation.
- Investigation of the Exploding Wire Process as a Source for High Temperature Studies
- From Introduction: "It is the purpose of this monograph to bring together and report the results of numerous exploding wire experiments performed at the National Bureau of Standards over the past five years."
- Irradiation behavior of unalloyed hypostoichiometric uranium carbide, experiment AI 3-11 and review
- A report regarding the irradiation behavior of Unalloyed hypostoichiometric uranium carbide experiment AI 3-11 and review
- Irradiation behavior of uranium monocarbide fuel experiments NAA 81-3 and AI 3-12
- A report regarding irradiation behavior of uranium monocarbide fuel experiments NAA 81-3 and AI 3-12
- Large Reverse Osmosis System Technology and Module Development
- From Introduction: "This is the final report on a program of reverse osmosis research conducted for the Office of Saline Water, U.S. Department of the Interior, under Contract 14-01-0001-929. The purpose of the program was the development of larger spiral-wound reverse osmosis modules for economical application in large reverse osmosis systems."
- The Mg-MgCl2 System — A Chronopotentiometric Study
- The mode of dissolution of magnesium in molten magnesium chloride contacted with Mg-Pb alloys was studied at 750°C using anodic chronopotentiometry. An inert tantalum anode was used to determine relative amounts of magnesium dissolved in its chloride as a function of magnesium activity in the alloy. According to the law of mass action a linear dependence of magnesium solubility on a Mg indicates Mg2Cl2 as the reaction product and a parabolic dependence indicates MgCl. It was found that the amount of magnesium dissolved in its chloride was directly proportional to the magnesium activity in the metal phase, i.e., a linear dependence, indicating Mg2Cl2 as the subhalide species. Due to the corrosive nature of the Mg-MgCl2 system a special apparatus was used so that only the inert metals tantalum and molybdenum came in contact with the melt. Purification procedures and conditions for proper equilibration and measurement were established and are reported. The basic equation of chronopotentiometry, [equation not transcribed], was found to hold and at given magnesium activities the product [unintelligible] did not vary with the current, indicating the validity of the analytical technique.
- Microfilming Maps of Abandoned Anthracite Mines: Mines in the Wyoming Basin, Northern Anthracite Field
- Report issued by the Bureau of Mines discussing a program for microfilming maps of abandoned mines in the Pennsylvania anthracite region. As stated in the introduction, "this report contains a catalog of films covering 68 of the 72 mines in the Wyoming Basin of the Northern anthracite field. Maps of active mines are not included" (p. 4). This report includes tables, and maps.
- Microwave Spectral Tables: Volume 4. Polyatomic Molecules Without Internal Rotation
- From Introduction: "This volume contains data on the microwave spectra of 166 polyatomic molecules incapable of exhibiting internal rotation."
- Microwave Spectral Tables: Volume 5. Spectral Line Listing
- From Abstract: "This volume is a listing of the spectral lines reported in Volume I, III, and IV of the Microwave Spectral Tables. These lines are listed according to ascending magnitude of frequency and should provide a steady reference."