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Permeability damage to natural fractures caused by fracturing fluid polymers

Description: Formation damage studies using artificially fractured, low-permeability sandstone cores indicate that viscosified fracturing fluids can severely restrict gas flow through these types of narrow fractures. These studies were performed in support of the Department of Energy's Multiwell Experiment (MWX). Extensive geological and production evaluations at the MWX site indicate that the presence of a natural fracture system is largely responsible for unstimulated gas production. The laboratory format… more
Date: April 1, 1988
Creator: Gall, B. L.; Sattler, A. R.; Maloney, D. R. & Raible, C. J.
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Partner: UNT Libraries Government Documents Department
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The solar flare of 18 August 1979: Incoherent scatter radar data and photochemical model comparisons

Description: Measurements of electron density at seven D-region altidues were made with the Arecibo radar during a Class-X solar flare on 18 August 1979. Measurements of solar x-ray fluxes during the same period were available from the GOES-2 satellite (0.5 to 4 /angstrom/ and 1 to 8 /angstrom/) and from ISEE-3 (in four bands between 26 and 400 keV). From the x-ray flux data we computed ionization rates in the D-region and the associated chemical changes, using a coupled atmospheric chemistry and diffusion … more
Date: April 1, 1988
Creator: Zinn, J.; Sutherland, C. D.; Fenimore, E. E. & Ganguly, S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Conservation and Renewable Energy Program: Bibliography, 1988 edition

Description: The 831 references covering the period 1980 through Feb. 1988, are arranged under the following: analysis and evaluation, building equipment, building thermal envelope systems and materials, community systems and cogeneration, residential conservation service, retrofit, advanced heat engine ceramics, alternative fuels, microemulsion fuels, industrial chemical heat pumps, materials for waste heat utilization, energy conversion and utilization materials, tribology, emergency energy conservation,i… more
Date: April 1, 1988
Creator: Vaughan, K.H. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Niagara Falls Storage Site, Lewiston, New York: Annual site environmental report, Calendar year 1987: Formerly Utilized Sites Remedial Action Program (FUSRAP)

Description: The monitoring program at the Niagara Falls Storage Site (NFSS) measures radon gas concentrations in air; external gamma radiation levels; and uranium and radium concentrations in surface water, groundwater, and sediment. To verify that the site is in compliance with the DOE radiation protection standard and to assess its potential effect on public health, the radiation dose was calculated for the maximally exposed individual. Based on the conservative scenario described in the report, this ind… more
Date: April 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Monitoring the materials and chemistry of a geothermal plant

Description: The components of geothermal brines that cause corrosion and scaling problems are reviewed, especially brine pH, CO/sub 2/, H/sub 2/S, oxygen (from air), silicia, calcium, sulfides, and suspended particulates. Instrumental methods for on-line measurement are discussed to show how to keep costs low by operating a geothermal plant from a position of knowledge of what is occurring to the plant materials. The US Department of Energy research and development program in brine chemistry and on-line in… more
Date: April 1, 1988
Creator: Shannon, D.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Profile correction to electron temperature and enhancement factor in soft x-ray pulse-height-analysis measurements in tokamaks

Description: Because soft x-ray pulse-height-analysis (PHA) spectra contain chordal information, the electron temperature and the radiation intensity (enhancement factor) measurements do not represent the local values. Assuming that the profile Ansatz for the electron temperature and density is of the form n/sub eo/(1-(ra)/sup 2/)/sup ..cap alpha../ and kT/sub eo/(1--(ra)/sup 2/)/sup ..beta../, we obtain the correction factors for the electron temperature and the enhancement factor as a function of the prof… more
Date: April 1, 1988
Creator: Sesnic, S.; Diesso, M.; Hill, K.; Holland, A. & Pohl, F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Rf cavity primer for cyclic proton accelerators

Description: The purpose of this note is to describe the electrical and mechanical properites of particle accelerator rf cavities in a manner which will be useful to physics and engineering graduates entering the accelerator field. The discussion will be limited to proton (or antiproton) synchrotron accelerators or storage rings operating roughly in the range of 20 to 200 MHz. The very high gradient, fixed frequency UHF or microwave devices appropriate for electron machines and the somewhat lower frequency … more
Date: April 1, 1988
Creator: Griffin, J.E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Dominant lethal study in CD-1 mice following inhalation exposure to 1,3-butadiene: Final technical report

Description: The effects of whole-body inhalation exposures to 1,3-butadiene on the reproductive system was evaluated. The results of dominant lethality in CD-1 male mice that were exposed to 1,3-butadiene are described. Subsequent to exposure, males were mated with two unexposed females. Mating was continued for 8 weeks with replacement of two females each week. Gravid uteri were removed, and the total number, position and status of implantations were determined. The mice were weighed prior to exposure and… more
Date: April 1, 1988
Creator: Hackett, P. L.; Mast, T. J.; Brown, M. G.; Clark, M. L.; Evanoff, J. J.; Rowe, S. E. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Health, Safety, and Environment Division: Annual progress report 1987

Description: The primary responsibility of the Health, Safety, and Environment (HSE) Division at the Los Alamos National Laboratory is to provide comprehensive occupational health and safety programs, waste processing, and environment protection. These activities are designed to protect the worker, the public, and the environment. Many disciplines are required to meet the responsibilities, including radiation protection, industrial hygiene, safety, occupational medicine, environmental science, epidemiology,… more
Date: April 1, 1988
Creator: Rosenthal, M.A. (comp.)
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Optical imaging diagnostics for fusion plasmas

Description: Imaging diagnostics are used for spatially/emdash/and temporally/emdash/resolved quantitative measurements of plasma properties such as the ionization particle source, particle and energy loss, and impurity radiation in magnetically confined fusion plasmas. Diagnostics equipped with multi-element solid-state detectors (often with image intensifiers) are well suited to the environment of large fusion machines with high magnetic field and x-ray and neutron fluxes. We have both conventional (16msf… more
Date: April 1, 1988
Creator: Allen, S.L.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Reducing long-term reservoir performance uncertainty

Description: Reservoir performance is one of the key issues that have to be addressed before going ahead with the development of a geothermal field. In order to select the type and size of the power plant and design other surface installations, it is necessary to know the characteristics of the production wells and of the produced fluids, and to predict the changes over a 10--30 year period. This is not a straightforward task, as in most cases the calculations have to be made on the basis of data collected … more
Date: April 1, 1988
Creator: Lippmann, M.J.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Two-photon (VUV + visible) resonance ionization spectroscopy of molecular hydrogen

Description: Two-photon transitions have been examined in molecular hydrogen using coherent vacuum ultraviolet (VUV) photons at a fixed wavelength of 118 nm and a tunable photon from a dye laser. Though the VUV intensity is very weak (/approximately/100 nJ per pulse) it was utilized very efficiently since most VUV photons in the ionoization region were absorbed. This is the first time that coherent VUV light has been employed with tunable visible light for the production of two-photon spectra and the measur… more
Date: April 1, 1988
Creator: McCann, M.P.; Chen, C.H. & Payne, M.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Solar thermal bowl concepts and economic comparisons for electricity generation

Description: This study is aimed at providing a relative comparison of the thermodynamic and economic performance in electric applications for fixed mirror distributed focus (FMDF) solar thermal concepts which have been studied and developed in the DOE solar thermal program. Following the completion of earlier systems comparison studies in the late 1970's there have been a number of years of progress in solar thermal technology. This progress includes developing new solar components, improving component and… more
Date: April 1, 1988
Creator: Williams, T. A.; Dirks, J. A.; Brown, D. R.; Antoniak, Z. I.; Allemann, R. T.; Coomes, E. P. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Beauty physics at Fermilab fixed target energies

Description: The very high luminosities (>>10/sup 32/cm/sup /minus/2/sec/sup /minus/1/) available in the Fermilab fixed target experimental areas offer immediate opportunities for producing large samples (>10/sup 8/ of B hadrons in individual experiments. The possibilities of accumulating large samples of B decays are limited by experimental techniques and trigger strategies and not by available luminosity. At the present time one experiment, E771, is approved to begin B physics experimentation and several … more
Date: April 1, 1988
Creator: Cox, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A proposal for a precision test of the standard model by neutrino-electron scattering (Large /hacek C/erenkov Detector Project)

Description: A precision measurement of neutrino-electron elastic scattering from a beam stop neutrino source at LAMPF is proposed. The total error in sin/sup 2/theta/sub W/ is estimated to be +-0.89/percent/. The experiment also will be sensitive to neutrino oscillations and supernova-neutrino bursts, and should set improved limits on the neutrino-charge radius and magnetic-dipole moment. The detector consists of a 2.5-million-gallon tank of water with approximately 14,000 photomultiplier tubes lining the … more
Date: April 1, 1988
Creator: Allen, R. C.; Lu, X.-Q.; Gollwitzer, K.; Igo, G. J.; Gulmez, E.; Whitten, C. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Sperm-head morphology study in B6C3F1 mice following inhalation exposure to 1,3-butadiene: Final technical report

Description: The present report describes the results of a study of the morphology of epididymal sperm heads of B6C3F1 mice that were exposed to varying concentrations of 1,3-butadiene. During the fifth post-exposure week, the animals were killed and examined for gross lesions of the reproductive tract; suspensions of the epididymal sperm were prepared for morphologic evaluations. No mortality was observed in any of the inhalation exposure groups. Transient toxic signs, including piloerection and dyspnea, w… more
Date: April 1, 1988
Creator: Hackett, P. L.; McClanahan, B. J.; Brown, M. G.; Buschbom, R. L.; Clark, M. L.; Decker, J. R. et al.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Accelerator and Fusion Research Division: 1987 summary of activities

Description: An overview of the design and the initial studies for the Advanced Light Source is given. The research efforts for the Center for X-Ray Optics include x-ray imaging, multilayer mirror technology, x-ray sources and detectors, spectroscopy and scattering, and synchrotron radiation projects. The Accelerator Operations highlights include the research by users in nuclear physics, biology and medicine. The upgrade of the Bevalac is also discussed. The High Energy Physics Technology review includes th… more
Date: April 1, 1988
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Electron irradiation effects in YBa/sub 2/Cu/sub 3/O/sub 7-delta/ single crystals

Description: Defect structures in YBa/sub 2/Cu/sub 3/O/sub 7/minus/delta/ produced by electron irradiation at 300/degree/K, were investigated by transmission electron microscopy. Threshold energies for the production of visible defects were determined to b 152 keV and 131 keV (+- 7 keV) in directions near the a- and b-axes, respectively (b > a, both perpendicular to c, the long axis in the orthorhombic structure). During above-threshold irradiations in an electron flux of 3 x 10 /sup 18/ cm/sup /minus/2/s/s… more
Date: April 1, 1988
Creator: Kirk, M.A.; Baker, M.C.; Liu, J.Z.; Lam, D.J. & Weber, H.W.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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An examination of wake effects and power production for a group of large wind turbines

Description: Data from a group of three MOD-2 wind turbines and two meteorological towers at Goodnoe Hills were analyzed to evaluate turbine power output and wake effects (losses in power production due to operation of upwind turbines), and atmospheric factors influencing them. The influences of variations in the ambient wind speed, wind direction, and turbulence intensity were the primary factors evaluated. Meteorological and turbine data collected at the Goodnoe Hills site from April 1 to October 17, 1985… more
Date: April 1, 1988
Creator: Elliott, D. L.; Buck, J. W. & Barnard, J. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Light Weight Radioisotopic Heater Unit (LWRHU) production for the Galileo Mission

Description: The Light Weight Radioisotopic Heater Unit (LWRHU) is a /sup 238/PuO/sub 2)minus/ fueled heat source designed to provide a thermal watt of power for space missions. The LWRHU will be used to maintain the temperature of various components on the spcaecraft at the required level. The heat source consists of a /sup 238/PuO/sub 2/ fuel pellet, a Pt-30Rh capsule, a pyrolytic graphite insulator, and a woven graphite aeroshell assembly. Los Alamos National Laboratory (LANL) has fabricated 134 heater u… more
Date: April 1, 1988
Creator: Rinehart, G.H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of high current and high brightness negative hydrogen ion sources

Description: Negative hydrogen ions have found important applications in particle accelerators and in fusion research. These ions can be generated from two different types of ion sources---the surface conversion source and the volume production source. Recent experiments demonstrate that H/sup /minus// current exceeding 1 A can be obtained from both types of ion sources. Because of the lower H/sup /minus// ion temperature and the fact that they can be operated without cesium, volume H/sup /minus// sources a… more
Date: April 1, 1988
Creator: Leung, K. N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Mechanisms governing fine particulate emissions from coal flames

Description: Efforts in this period focused on refining the plans for engineering analysis and fundamental experiments based on the results of a literature review, and modifying the Malvern laser diffraction particle sizer to operate at particle sizes down to 0.5 microns. The engineering analysis plan is to concentrate on development of new models and adaptation of existing models for fine particulate formation by three categories of mechanisms: particle breakup/ash coalescence; direct passage, fragmentatio… more
Date: April 1, 1988
Creator: Clark, W. D.; Chen, S. L.; Kramlich, J. C.; Newton, G. H.; Ruth, L. A. (Energy and Environmental Research Corp., Irvine, CA (United States)) & Samuelsen, G. S. (California Univ., Irvine, CA (United States))
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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FY-87 Packing Fabrication Techniques (Commercial Waste Form) Results

Description: This report covers the investigation of fabrication techniques associated with the development of suitable materials and methods to provide a prefabricated packing for waste packages for the Basalt Waste Isolation Project (BWIP). The principal functions of the packing are to minimize container corrosion during the 300 to 1000 years following repository closure and provide long-term control of the release of radionuclides from the waste package. The investigative work, discussed in this report, … more
Date: April 1, 1988
Creator: Werry, E.V.; Gates, T.E.; Cabbage, K.S. & Eklund, J.D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Analytical methods for large-scale sensitivity analysis using GRESS (GRadient Enhanced Software System) and ADGEN (Automated Adjoint Generator)

Description: Sensitivity analysis is an established methodology used by researchers in almost every field to gain essential insight in design and modeling studies and in performance assessments of complex systems. Conventional sensitivity analysis methodologies, however, have not enjoyed the widespread use they deserve considering the wealth of information they can provide, partly because of their prohibitive cost or the large initial analytical investment they require. Automated systems have recently been … more
Date: April 1, 1988
Creator: Pin, F.G.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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