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Advances in technology for the construction of deep-underground facilities (open access)

Advances in technology for the construction of deep-underground facilities

The workshop was organized in order to address technological issues important to decisions regarding the feasibility of strategic options. The objectives of the workshop were to establish the current technological capabilities for deep-underground construction, to project those capabilities through the compressed schedule proposed for construction, and to identify promising directions for timely allocation of existing research and development resources. The earth has been used as a means of protection and safekeeping for many centuries. Recently, the thickness of the earth cover required for this purpose has been extended to the 2,000- to 3,000-ft range in structures contemplated for nuclear-waste disposal, energy storage, and strategic systems. For defensive missile basing, it is now perceived that the magnitude of the threat has increased through better delivery systems, larger payloads, and variable tactics of attack. Thus, depths of 3,000 to 8,000 ft are being considered seriously for such facilities. Moreover, it appears desirable that the facilities be operational (if not totally complete) for defensive purposes within a five-year construction schedule. Deep excavations such as mines are similar in many respects to nearsurface tunnels and caverns for transit, rail, sewer, water, hydroelectric, and highway projects. But the differences that do exist are significant. Major …
Date: December 31, 1987
Creator: unknown
System: The UNT Digital Library
Ceramic characterization (open access)

Ceramic characterization

Objective of this task is to measure and characterize the ceramic properties (crystalline phase composition, grain boundaries, residual stresses) of a series of standard ceramic specimens to assist in developing international standards for ceramic characterization. This report describes electron microscopy of the microstructure and grain boundaries of ESK silicon carbide; supporting x-ray diffraction data for the bulk phase composition is included.
Date: December 31, 1987
Creator: Vaudin, M. D.; Fuller, E. R. Jr.; Cline, J. P. & Dragoo, A. L.
System: The UNT Digital Library
A hierarchical data-driven model for multi-grid problem solving (open access)

A hierarchical data-driven model for multi-grid problem solving

The data-driven principles of execution present an elegant solution to the problem of instruction scheduling in large scale multiprocessor systems. However, much overhead must be expanded in detecting the simplest forms of parallelism such as vector operations. A two-level architecture with powerful processors is presented here. In addition, preemptive execution of certain actors allows better pipelining and tolerance to latencies. The natural application of the machine to numerical computations is demonstrated by the use of a multi-grid Partial Differential Equation solver.
Date: December 31, 1987
Creator: Najjar, W. & Gaudiot, J.-L.
System: The UNT Digital Library
Isostatic uplift, crustal attenuation, and the evolution of an extensional detachment system in southwestern Nevada (open access)

Isostatic uplift, crustal attenuation, and the evolution of an extensional detachment system in southwestern Nevada

Geological and geophysical evidence supports the existence of extensional detachments, between the Sheep Range and Death Valley. It is proposed that geographically separated pieces of detachments between Death Valley and the Sheep Range are parts of a regional detachment system that has evolved since the Miocene, and that the system consists of lenses of strata separated by an anastomosing network of low- and high-angle normal faults. This manuscript emphasizes the probability that isostatic uplift within the region of greatest crustal attenuation in this system, the Bullfrog Hills core complex, controlled the evolution of the detachment system between the breakaway zone a the Sheep Range and the core complex. Features in this system are described from east to west, which is the apparent direction of tectonic transport.
Date: December 31, 1987
Creator: Scott, R.B.
System: The UNT Digital Library
A model of the circulating blood for use in radiation dose calculations (open access)

A model of the circulating blood for use in radiation dose calculations

Over the last few years there has been a significant increase in the use of radionuclides in leukocyte, platelet, and erythrocyte imaging procedures. Radiopharmaceutical used in these procedures are confined primarily to the blood, have short half-lives, and irradiate the body as they move through the circulatory system. There is a need for a model, to describe the circulatory system in an adult human, which can be used to provide radiation absorbed dose estimates for these procedures. A simplified model has been designed assuming a static circulatory system and including major organs of the body. The model has been incorporated into the MIRD phantom and calculations have been completed for a number of exposure situations and radionuclides of clinical importance. The model will be discussed in detail and results of calculations using this model will be presented.
Date: December 31, 1987
Creator: Hui, T. E. & Poston, J. W., Sr.
System: The UNT Digital Library
New perspectives on quaternary faulting in the southern Walker Lane, Nevada and California (open access)

New perspectives on quaternary faulting in the southern Walker Lane, Nevada and California

A preliminary survey of aerial photographs of the southern Walker Lane began in late 1986. The purpose of this survey is to determine the nature and scope of future studies required to ascertain whether the apparent concentration of Quaternary faults in and near the Nevada Test Site is real or is simply a result of the greater effort invested in mapping Quaternary deposits in that area, and determine whether faults in the southern Walker Lane are active and could produce significant earthquakes. The survey is focused on the area extending south from Lone Mountain to Pahrump Valley and east from the Furnace Creek fault zone to an irregular line passing through the Cactus Range and Pahute Mesa. Lineaments and scraps were identified on stereopairs of black-and-white aerial photographs at scales of 1:80,000 or 1:60,000. The lineaments and and scarps were plotted on 1:24,000- and 1:62,500-scale topographic maps using a PG-2 plotter, and were color-coded according to distinctness and occurrence in Quaternary or Tertiary deposits (age assignments based on appearance in aerial photographs and on existing geologic maps). Additional lineaments identified on the topographic maps were also plotted. Areas of particular interest were selected for more detailed study using larger-scale aerial …
Date: December 31, 1987
Creator: Reheis, M. C. & Noller, J. S.
System: The UNT Digital Library
The performance of actinide-containing SRL 165 type glass in unsaturated conditions (open access)

The performance of actinide-containing SRL 165 type glass in unsaturated conditions

As part of the effort by the Nevada Nuclear Waste Storage Investigations (NNWSI) Project to evaluate the volcanic tuff beds of Yucca Mountain, Nevada, as a repository for the permanent storage of high-level nuclear waste, the interaction of actinide-doped Savannah River Laboratory (SRL) 165 type glass with the unsaturated repository environment has been studied. The NNWSI Unsaturated Test method has been used, and the results from batch and continuous tests completed through 18 months demonstrate that several interactions are important for controlling both the reaction of the glass and the release of radionuclides. These interactions include (1) the reaction between the glass and moist air with interludes of liquid water contact, which results in the release of alkali metals from the glass; and (2) the reaction between standing water, glass, and presensitized 304 L type stainless steel which results in breakdown of the glass matrix and the release of radionuclides from the glass-metal assemblage. A comparison of the results of the Unsaturated Test with those of parametric experiments illustrates the importance of presensitized steel in enhancing the glass reaction, and demonstrates the applicability of the Unsaturated Test to those conditions anticipated to exist in the NNWSI repository horizon. 10 refs., …
Date: December 31, 1987
Creator: Bates, J.K. & Gerding, T.J.
System: The UNT Digital Library
Preliminary geochemical/geophysical model of Yucca Mountain (open access)

Preliminary geochemical/geophysical model of Yucca Mountain

A comprehensive geochemical/geophysical model incorporates the current and relevant stratigraphic, petrologic, hydrogeologic, geochemical, and material data associated with a candidate repository at Yucca Mountain, Nevada. A geochemical/geophysical model will provide support and confidence to the Systems Performance calculations, determine whether the data collected as part of the site characterization provide the information needed by the design and performance assessment task, and provide the most accurate and referenced foundation on which to base the radionuclide transport calculations. In this report, the known repository data are compiled and unknown parameter values are estimated based on the available data. It is concluded that more data are needed before the geochemical/geophysical model of Yucca Mountain can be regarded as satisfactory and suitable base for multidimensional predicative flow and transport simulations. Recommendations for future studies concerning site characterization and data acquisition are presented. 36 refs., 1 fig., 2 tabs.
Date: December 31, 1987
Creator: Greenwade, L.E. & Cederberg, Gail A.
System: The UNT Digital Library
Soft x-ray laser microscopy (open access)

Soft x-ray laser microscopy

Microscopes based on soft X-ray lasers possess unique advantages in bridging the gap between high resolution electron microscopy of dehydrated, stained cells and light microscopy at comparatively low resolution of unaltered live cells. The high brightness and short pulse duration of soft X-ray lasers make them ideal for flash imaging of live specimens. The Princeton soft X-ray laser is based on a magnetically confined laser produced carbon plasma. Radiation cooling after the laser pulse produces rapid recombination which produces a population inversion and high gain. A full account is given in a companion paper in this volume. The important characteristics of the laser beam produced by this device are 1 to 3 mJ of 18.2 nm radiation in a 10 to 30 nsec pulse with a divergence of 5 mrad. The 18.2 nm wavelength, while outside the water window, does provide a factor of 3 difference in absorption coefficients between oxygen and carbon.
Date: December 31, 1987
Creator: DiCicco, D.; Meixler, L.; Skinner, C. H.; Suckewer, S.; Hirschberg, J. & Kohen, E.
System: The UNT Digital Library
Heavy quark production in ep collisions at HERA. [None] (open access)

Heavy quark production in ep collisions at HERA. [None]

There are substantial production rates of heavy quarks from ep collisions at HERA. The center of mass energy of about 300 GeV is well above any b-quark threshold effects, and for b/bar b/ production, the cross section is estimated to be 3.3 nb per event, leading to rates approaching 10/sup 6/ b mesons per year. The rates for c/bar c/ production are about two orders of magnitude greater. Two major detectors are under construction and a program of heavy quark physics will start in 1990. 3 refs., 4 figs.
Date: December 22, 1987
Creator: Derrick, M.
System: The UNT Digital Library
Comments on Dr. J. Slawinski's Paper (open access)

Comments on Dr. J. Slawinski's Paper

This paper discusses Rupert Sheldrake's comments about Dr. J. Slawinski's paper "Electromagnetic Radiation And The Afterlife." Sheldrake proposes ideas that disagree with Slawinski's paper.
Date: Winter 1987
Creator: Sheldrake, Rupert
System: The UNT Digital Library
Comments On "Electromagnetic Radiation And The Afterlife" [#1] (open access)

Comments On "Electromagnetic Radiation And The Afterlife" [#1]

This paper by Evan Harris Walker comments on Janusz Slawinski's paper named "Electromagnetic Radiation and the Afterlife." It states the shortcomings of Slawinski's electromagnetic radiation argument by specifying a variety of points that run counter to the argument's physical possibility.
Date: Winter 1987
Creator: Walker, Evan Harris
System: The UNT Digital Library
Comments On "Electromagnetic Radiation And The Afterlife" [#2] (open access)

Comments On "Electromagnetic Radiation And The Afterlife" [#2]

This paper comments on potential connections between electromagnetic radiation's influence on human biology, and the ramifications of the afterlife.
Date: Winter 1987
Creator: Smith, Cyril W.
System: The UNT Digital Library
Comments On "Electromagnetic Radiation And The Afterlife" [#3] (open access)

Comments On "Electromagnetic Radiation And The Afterlife" [#3]

This paper by Steven M. Rosen comments on Janusz Slawinski's paper named "Electromagnetic Radiation And The Afterlife." This paper contains three critiques of an empirical, philosophical, and mathematical nature, respectively.
Date: Winter 1987
Creator: Rosen, Steven M.
System: The UNT Digital Library
Comments on Slawinski's Paper (open access)

Comments on Slawinski's Paper

This paper by Keith Harary addresses Janusz Slawinki's paper "Electromagnetic Radiation And The Afterlife." Harary expresses why he remains unconvinced by Slawinski's electromagnetic radiation argument.
Date: Winter 1987
Creator: Harary, Keith
System: The UNT Digital Library
Electromagnetic Radiation And The Afterlife (open access)

Electromagnetic Radiation And The Afterlife

This article discusses the possibility that electromagnetic radiation could contain and transmit the essence of consciousness after the body's death, allowing consciousness to continue beyond the body's death.
Date: Winter 1987
Creator: Slawinski, Janusz
System: The UNT Digital Library
Fields Within Fields, Questions Within Questions: A Comment On "Electromagnetic Radiation And The Afterlife" (open access)

Fields Within Fields, Questions Within Questions: A Comment On "Electromagnetic Radiation And The Afterlife"

This paper commends Janusz Slawinski for their paper "Electromagnetic Radiation And The Afterlife" for proposing provocative questions, and proceeds to provide a list of questions to refocus Slawinski's inquiry into this topic.
Date: Winter 1987
Creator: Krippner, Stanley
System: The UNT Digital Library
For the Record, Winter 1987-88 (open access)

For the Record, Winter 1987-88

For the Record section including the minutes of the quarterly board meeting of the Board of Directors of the Oklahoma Historical Society that was held on July 29, 1987.
Date: Winter 1987
Creator: Oklahoma Historical Society
System: The Gateway to Oklahoma History
Guest Editorial: Consciousness and Substance: The Primal Forms of God (open access)

Guest Editorial: Consciousness and Substance: The Primal Forms of God

This paper establishes the author's view on consciousness and God, and attempts to correct New Age-oriented beliefs.
Date: Winter 1987
Creator: White, John
System: The UNT Digital Library
Indians as Pioneers: Potawatomis on the Frontier (open access)

Indians as Pioneers: Potawatomis on the Frontier

Article illuminates the history of the Potawatomis, who intermarried with French fur traders and were pioneers of the west. R. David Edmunds reviews the oft-overlooked era of skirmishes between tribes already living in western lands and emigrant Indians.
Date: Winter 1987
Creator: Edmunds, R. David
System: The Gateway to Oklahoma History
Jujubes, Grapes, & Grass: The USDA Research Station at Woodward, 1913-1987 (open access)

Jujubes, Grapes, & Grass: The USDA Research Station at Woodward, 1913-1987

Article describes the development of the United States Department of Agriculture research station at Woodward, Oklahoma, and the various crops grown and tested there from the early 1910s to the present day.
Date: Winter 1987
Creator: James, Louise Boyd
System: The Gateway to Oklahoma History
Osage Aviator: The Life and Career of Major General Clarence L. Tinker (open access)

Osage Aviator: The Life and Career of Major General Clarence L. Tinker

Article provides a biographical tribute to Major General Clarence L. Tinker, an Osage air force pilot with an illustrious career. James L. Crowder, Jr. describes the man's life and career from growing up in the Osage Nation, to joining the U.S. Army, to his participation in the Air Force that led to an air base being named after him.
Date: Winter 1987
Creator: Crowder, James L., Jr.
System: The Gateway to Oklahoma History
Remarks On Janusz Slawinski's Paper (open access)

Remarks On Janusz Slawinski's Paper

This paper by Michael Grosso analyzes points made by Janusz Slawinski in their paper "Electromagnetic Radiation and the Afterlife." It specifies that the author's hypothesis cannot be tested currently, and thus, it cannot be falsified. More research and data is needed, according to Grosso.
Date: Winter 1987
Creator: Gross, Michael
System: The UNT Digital Library
Response To Commentaries On "Electromagnetic Radiation and The Afterlife" (open access)

Response To Commentaries On "Electromagnetic Radiation and The Afterlife"

This paper is a response from Janusz Slawinski to commentaries on their original paper titled "Electromagnetic Radiation and The Afterlife." Slawinski elaborates on more information to respond to other peoples' critiques.
Date: Winter 1987
Creator: Slawinski, Janusz
System: The UNT Digital Library