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Drilling and geohydrologic data for test hole USW UZ-1, Yucca Mountain, Nye County, Nevada
This report presents data collected to determine the hydrologic characteristics of tuffaceous rocks penetrated in test hole USW UZ-1. The borehole is the first of two deep, large-diameter, unsaturated-zone test holes dry drilled using the vacuum/reverse-air-circulation method. This test hole was drilled in and near the southwestern part of the Nevada Test Site, Nye County, Nevada, in a program conducted in cooperation with the US Department of Energy. These investigations are part of the Yucca Mountain Project (formerly the Nevada Nuclear Waste Storage Investigations) to identify a potentially suitable site for the storage of high-level radioactive wastes. Data are presented for bit and casing configurations, coring methods, sample collection, drilling rate, borehole deviation, and out-of-gage borehole. Geologic data for this borehole include geophysical logs, a lithologic log of drill-bit cuttings, and strike and distribution of fractures. Hydrologic data include water-content and water-potential measurements of drill-bit cuttings, water-level measurements, and physical and chemical analyses of water. Laboratory measurements of moisture content and matric properties from the larger drill-bit cutting fragments were considered to be representative of in-situ conditions. 3 refs., 5 figs., 10 tabs.
Date:
December 31, 1990
Creator:
Whitfield, M.S.; Thordarson, W.; Hammermeister, D.P. & Warner, J.B.
Object Type:
Report
System:
The UNT Digital Library
Green's function Monte Carlo in nuclear physics
We review the status of Green's Function Monte Carlo (GFMC) methods as applied to problems in nuclear physics. New methods have been developed to handle the spin and isospin degrees of freedom that are a vital part of any realistic nuclear physics problem, whether at the level of quarks or nucleons. We discuss these methods and then summarize results obtained recently for light nuclei, including ground state energies, three-body forces, charge form factors and the coulomb sum. As an illustration of the applicability of GFMC to quark models, we also consider the possible existence of bound exotic multi-quark states within the framework of flux-tube quark models. 44 refs., 8 figs., 1 tab.
Date:
January 1, 1990
Creator:
Carlson, J.
Object Type:
Article
System:
The UNT Digital Library
Documentation and analysis of a global CO{sub 2} model developed by Peng et al. (1983)
A global carbon model, the Peng `83 model, has been standardized according to protocols developed for an intermodel comparison. The first part of this document describes the model as they received it, and the second part describes a standardized version of the model, which has been parameterized according to the protocols described. Model performance was evaluated according to defined criteria and a sensitivity analysis of the model was conducted to identify the most important parameters. The standardized model was supplemented with a calibration routine to define reasonable combinations of initial conditions. This improved the ability of the model to hold an initial equilibrium state. Sensitivity analysis showed a shift in parameter importances with time. The initial conditions were of greatest importance for the length of these simulations, but declined in longer simulations. With the initial pCO{sub 2} excluded from the sensitivity analysis, ocean surface area (used to extrapolate results) was second in importance. While the CO{sub 2} exchange rate were initially most important, the model projections of atmospheric CO{sub 2} soon became more sensitive to the alkalinity of the ocean.
Date:
July 1, 1990
Creator:
Jager, H.I.; Peng, T.H.; King, A.W. & Sale, M.J.
Object Type:
Report
System:
The UNT Digital Library
Determination of bedrock hydraulic conductivity and hydrochemistry using a wellbore fluid logging method
One of the most challenging tasks faced by environmental engineers is cost effective hydraulic and hydrochemical characterization of a fractured bedrock aquifer by means of exploratory wellbores. To address this problem, a new borehole fluid logging method for rapidly and efficiently determining the vertical distribution of hydraulic conductivity in fractured bedrock aquifers has been developed. This new technique was recently applied near two active landfills in southern New England. The technique involves replacing the standing column of water in a borehole with a uniformly deionized fluid, and then profiling the changes in fluid electrical conductivity in the borehole. These changes occur when the contrasting formation water is drawn back into the borehole by continuous low flow rate pumping or by slug testing. A downhole wireline water-quality tool, which simultaneously measures fluid electrical conducivity, temperature, pH and oxidation-reduction potential (Eh), was employed to profile the physical/chemical changes of the ``emplaced`` fluid. The numerical code BORE, was employed to determine the inflow parameters and fracture-specific fluid electrical conducivity for the hydraulically conductive fractures. Straddle packer testing at 10-foot intervals was conducted to confirm the slug testing results. Some discrepancies were encountered which can be explained by accounting for the volume of formation …
Date:
May 1, 1990
Creator:
Pedler, W. H.; Barvenik, M. J.; Tsang, C. F. & Hale, F. V.
Object Type:
Article
System:
The UNT Digital Library
The plutonium-oxygen phase diagram
Identification of products formed by the reaction of plutonium metal with liquid water at 23{degree}C indicates that the plutonium-oxygen phase diagram is similar to the cerium-oxygen and praseodymium-oxygen diagrams. Quantitative measurements of H{sub 2} formation and analytical data suggest that a sequence of hydrolysis reactions produces oxide hydrides of trivalent plutonium, Pu{sub 2}O{sub 3}, mixed-valent oxides and PuO{sub 2}. The intermediate oxides are the n {equals} 7, 9, 10 and 12 members of the Pu{sub n}O{sub 2n{minus}2} homologous series. Properties of the residue formed by thermal decomposition of the initial hydrolysis product, plutonium monoxide monhydride (PuOH), are consistent with the formation of metastable plutonium monoxide. Crystal-chemical, thermodynamic, and kinetic factors are evaluated, but definitive assignment of the equilibrium Pu-O diagram is not possible. 22 refs., 6 figs., 1 tab.
Date:
January 1, 1990
Creator:
Haschke, J.M.
Object Type:
Article
System:
The UNT Digital Library
Comparative analysis of monetary estimates of external environmental costs associated with combustion of fossil fuels
Public utility commissions in a number of states have begun to explicitly treat costs of environmental externalities in the resource planning and acquisition process (Cohen et al. 1990). This paper compares ten different estimates and regulatory determinations of external environmental costs associated with fossil fuel combustion, using consistent assumptions about combustion efficiency, emissions factors, and resource costs. This consistent comparison is useful because it makes explicit the effects of various assumptions. This paper uses the results of the comparison to illustrate pitfalls in calculation of external environmental costs, and to derive lessons for design of policies to incorporate these externalities into resource planning. 38 refs., 2 figs., 10 tabs.
Date:
July 1, 1990
Creator:
Koomey, J.
Object Type:
Report
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 97, No. 2, Ed. 1 Monday, February 12, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 12, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Bosque County Record Tribune (Clifton, Tex.), Vol. 95, No. 7, Ed. 1 Thursday, February 15, 1990
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
February 15, 1990
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Bosque County Record Tribune (Clifton, Tex.), Vol. 95, No. 11, Ed. 1 Thursday, March 15, 1990
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
March 15, 1990
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
Laser driven instabilities in inertial confinement fusion
Parametric instabilities excited by an intense electromagnetic wave in a plasma is a fundamental topic relevant to many applications. These applications include laser fusion, heating of magnetically-confined plasmas, ionospheric modification, and even particle acceleration for high energy physics. In laser fusion, these instabilities have proven to play an essential role in the choice of laser wavelength. Characterization and control of the instabilities is an ongoing priority in laser plasma experiments. Recent progress and some important trends will be discussed. 8 figs.
Date:
June 4, 1990
Creator:
Kruer, W.L.
Object Type:
Article
System:
The UNT Digital Library
Perry Daily Journal (Perry, Okla.), Vol. 96, No. 296, Ed. 1 Thursday, January 25, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
January 25, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 5, Ed. 1 Thursday, February 15, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 15, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 8, Ed. 1 Monday, February 19, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 19, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 97, No. 170, Ed. 1 Tuesday, August 28, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 28, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 97, No. 87, Ed. 1 Tuesday, May 22, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
May 22, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Perry Daily Journal (Perry, Okla.), Vol. 96, No. 303, Ed. 1 Friday, February 2, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
February 2, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 167, Ed. 1 Friday, August 24, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
August 24, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Bosque County Record Tribune (Clifton, Tex.), Vol. 95, No. 23, Ed. 1 Thursday, June 7, 1990
Weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
June 7, 1990
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 215, Ed. 1 Friday, October 19, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
October 19, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 107, Ed. 1 Thursday, June 14, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 14, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Tecuamburro Volcano, Guatemala geothermal gradient core hole drilling, operations, and preliminary results
A geothermal gradient core hole (TCB-1) was drilled to a depth of 700+ m at the Tecuamburro geothermal site, Guatemala during February and March, 1990. The core hole is located low on the northern flank of the Tecuamburro Volcano complex. Preliminary analysis of cores (>98% core recovery) indicates that the hydrothermal system may be centered in the 4-km-diameter Chupadero Crater, which has been proposed as the source of pyroxene pumice deposits in the Tecuamburro area. TCB-1 is located 300 m south of a 300-m-diameter phreatic crater, Laguna Ixpaco; the core hole penetrates the thin edge of a tuff ring surrounding Ixpaco and zones of hydrothermal brecciation within the upper 150 m may be related to the phreatic blast, dated at 2,910 {sup 14}C years. At the time of this writing, the unequilibrated temperature at a depth of 570m was 180{degree}C. Data on fracturing, permeability, hydrothermal alteration, and temperature will be presented. 3 refs., 3 figs.
Date:
January 1, 1990
Creator:
Goff, S.; Heiken, G.; Goff, F.; Gardner, J. (Los Alamos National Lab., NM (USA)); Duffield, W. (Geological Survey, Flagstaff, AZ (USA)); Martinelli, L. et al.
Object Type:
Article
System:
The UNT Digital Library
The Perry Daily Journal (Perry, Okla.), Vol. 97, No. 108, Ed. 1 Friday, June 15, 1990
Daily newspaper from Perry, Oklahoma that includes local, state, and national news along with advertising.
Date:
June 15, 1990
Creator:
Watson, Milo W.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Reference concepts for a space-based hydrogen-oxygen combustion, turboalternator, burst power system
This report describes reference concepts for a hydrogen-oxygen combustion, turboalternator power system that supplies power during battle engagement to a space-based, ballistic missile defense platform. All of the concepts are open''; that is, they exhaust hydrogen or a mixture of hydrogen and water vapor into space. We considered the situation where hydrogen is presumed to be free to the power system because it is also needed to cool the platform's weapon and the situation where hydrogen is not free and its mass must be added to that of the power system. We also considered the situation where water vapor is an acceptable exhaust and the situation where it is not. The combination of these two sets of situations required four different power generation systems, and this report describes each, suggests parameter values, and estimates masses for each of the four. These reference concepts are expected to serve as a baseline'' to which other types of power systems can be compared, and they are expected to help guide technology development efforts in that they suggest parameter value ranges that will lead to optimum system designs. 7 refs., 18 figs., 5 tabs.
Date:
July 1, 1990
Creator:
Edenburn, Michael W.
Object Type:
Report
System:
The UNT Digital Library
Far-Field Dispersal Modeling for Fuel-Air-Explosive Devices
A computer model for simulating the explosive dispersal of a fuel agent in the far-field regime is described and is applied to a wide variety of initial conditions to judge their effect upon the resulting fuel/air cloud. This work was directed toward modeling the dispersal process associated with Fuel-Air-Explosives devices. The far-field dispersal regime is taken to be that time after the initial burster charge detonation in which the shock forces no longer dominate the flow field and initial canister and fuel mass breakup has occurred. The model was applied to a low vapor pressure fuel, a high vapor pressure fuel and a solid fuel. A strong dependence of the final cloud characteristics upon the initial droplet size distribution was demonstrated. The predicted fuel-air clouds were highly non-uniform in concentration. 18 refs., 86 figs., 4 tabs.
Date:
May 1, 1990
Creator:
Glass, Micheal W.
Object Type:
Report
System:
The UNT Digital Library