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1972-1997, Twenty-five years of energy and environmental history : lessons learned.
Given the events of the past 25 years concerning energy and environmental issues and our reaction to them, what lessons can we learn? First, the individual American consumer wants and expects energy to be a stable commodity with low prices and easy availability. As evidenced by the heated debate over increasing the federal gasoline tax by $.05 per gallon (which would still leave Americans paying only one-third of what Europeans pay for gasoline), increases in energy prices elicit very strong public and political opposition. As further evidence, it has been argued that the general public support of the Gulf War was due, in part, to a recognition of the need to maintain a stable source of cheap oil from the region. The American public wants to maintain the benefits of cheap and abundant energy and expects its political leaders to make it happen. A second lesson is that if constraints on the energy supply do occur (e.g., the OPEC-imposed oil embargo) ardor environmental impacts from energy use do appear to be significant (e.g., SO{sub 2} and CO{sub 2} emissions), the preference is for a technology fix rather than a behavioral change. This is evidenced by our reliance on moving low-sulfur …
Date:
December 17, 1997
Creator:
Drucker, H.
Object Type:
Article
System:
The UNT Digital Library
Advanced Reservoir Characterization and Evaluation of CO2 Gravity Drainage in the Naturally Fractured Spraberry Reservoir
Natural fractures exert a strong influence over oil production in Spraberry Trend Area reservoirs in the Permian Basin of west Texas. The importance of the fracture network has been known since the 1950s, but until recently, there has been very little detailed study of the fractures themselves. In 1996, a horizontal Spraberry well was cored as part of a DOE Class III Field Demonstration Project. Fractures from the horizontal core as well as other fractures encountered in vertical Spraberry cores were analyzed in detail for information on both large scale features including orientation and spacing and small-scale features such as the relationships between fracture mineralization and matrix rock composition. At least three sets of fractures are found within the upper and middle Spraberry cores. These sets have distinct orientations, spacing, mineralization, distribution with respect to lithology, and surface characteristics (Lorenz, 1997). Fractures found in the 1U zone of the upper Spraberry have a NE strike, and tend to be partly mineralized with barite, quartz, and dolomite. Distribution of these mineral phases can greatly affect conductivity between the fractures and the rock matrix. The 5U zone of the upper Spraberry contains fractures with NNE and ENE orientations. The NNE set of …
Date:
December 17, 1997
Creator:
Schechter, David S.
Object Type:
Report
System:
The UNT Digital Library
Altus Times (Altus, Okla.), Vol. 98, No. 232, Ed. 1 Wednesday, December 17, 1997
Daily newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Cole, Carol
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Alvin Advertiser (Alvin, Tex.), Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from Alvin, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Assessment of Neptunium, Americium, and Curium in the Savannah River Site Environment
A series of documents has been published in which the impact of various radionuclides released to the environment by Savannah River Site (SRS) operations has been assessed. The quantity released, the disposition of the radionuclides in the environment, and the dose to offsite individuals has been presented for activation products, carbon cesium, iodine, plutonium, selected fission products, strontium, technetium, tritium, uranium, and the noble gases. An assessment of the impact of nonradioactive mercury also has been published.This document assesses the impact of radioactive transuranics released from SRS facilities since the first reactor became operational late in 1953. The isotopes reported here are 239Np, 241Am, and 244Cm.
Date:
December 17, 1997
Creator:
Carlton, W.H.
Object Type:
Report
System:
The UNT Digital Library
Automatic differentiation and Navier-Stokes.
We describe the use of automatic differentiation (AD) to enhance a compressible Navier-Stokes model. With the solver, AD is used to accelerate convergence by more than an order of magnitude. Outside the solver, AD is used to compute the derivatives needed for optimization. We emphasize the potential for performance gains if the programmer does not treat AD as a black box, but instead utilizes high-level knowledge about the nature of the application.
Date:
December 17, 1997
Creator:
Bischof, C.; Hovland, P. & Mohammadi, B.
Object Type:
Article
System:
The UNT Digital Library
The Baytown Sun (Baytown, Tex.), Vol. 76, No. 40, Ed. 1 Wednesday, December 17, 1997
Daily newspaper from Baytown, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Dobbs, Gary
Object Type:
Newspaper
System:
The Portal to Texas History
Chickasha Daily Express (Chickasha, Okla.), Ed. 1 Wednesday, December 17, 1997
Daily newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Bush, Kent
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Clifton Record (Clifton, Tex.), Vol. 102, No. 101, Ed. 1 Wednesday, December 17, 1997
Semi-weekly newspaper from Clifton, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Smith, W. Leon
Object Type:
Newspaper
System:
The Portal to Texas History
The Cuero Record (Cuero, Tex.), Vol. 103, No. 49, Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from Cuero, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
The Daily Chickasha Star (Chickasha, Okla.), Vol. 96, No. 159, Ed. 1 Wednesday, December 17, 1997
Newspaper from Chickasha, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Settle, David
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Duval County Picture (San Diego, Tex.), Vol. 12, No. 51, Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from San Diego, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Cardenas, Alfredo E.
Object Type:
Newspaper
System:
The Portal to Texas History
[Funeral Program for James Otto Walker, Jr., December 17, 1997]
Funeral program for James Otto Walker, Jr., born May 12, 1939 and died December 14, 1997. The funeral was held December 17, 1997 at the St. Paul United Methodist Church, officiated by Rev. Terrence K. Hayes. Funeral arrangements were made through the Lewis Funeral Home, and he was buried in Fort Sam Houston National Cemetery near San Antonio, Texas.
Date:
December 17, 1997
Creator:
unknown
Object Type:
Pamphlet
System:
The Portal to Texas History
The Gilmer Mirror (Gilmer, Tex.), Vol. 120, No. 101, Ed. 1 Wednesday, December 17, 1997
Semiweekly newspaper from Gilmer, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Overton, Mac
Object Type:
Newspaper
System:
The Portal to Texas History
Impact of global climate change on ecosystem-level interactions among sympatric plants from all three photosynthetic pathways. Terminal report
The proposed research will determine biochemical and physiological responses to variations in environmental factors for plants of all three photosynthetic pathways under competitive situations in the field. These responses will be used to predict the effects of global climatic change on an ecosystem in the northwestern Sonoran Desert where the C{sub 3} subshrub Encelia farinosa, the C{sub 4} bunchgrass Hilaria rigida, and the CAM succulent Agave deserti are co-dominants. These perennials are relatively short with overlapping shallow roots facilitating the experimental measurements as well as leading to competition for soil water. Net CO{sub 2} uptake over 24-h periods measured in the laboratory will be analyzed using an environmental productivity index (EPI) that can incorporate simultaneous effects of soil water, air temperature, and light. Based on EPI, net CO{sub 2} uptake and hence plant productivity will be predicted for the three species in the field under various treatments. Activity of the two CO{sub 2} fixation enzymes, Rubisco and PEPCase, will be determined for these various environmental conditions; also, partitioning of carbon to various organs will be measured based on {sup 14}CO{sub 2} labeling and dry weight analysis. Thus, enzymatic and partitioning controls on competition among sympatric model plants representing all three …
Date:
December 17, 1997
Creator:
Nobel, P.S.
Object Type:
Report
System:
The UNT Digital Library
Levelland and Hockley County News-Press (Levelland, Tex.), Vol. 19, No. 76, Ed. 1 Wednesday, December 17, 1997
Semiweekly newspaper from Levelland, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Rigg, John
Object Type:
Newspaper
System:
The Portal to Texas History
The Little Elm Journal (Little Elm, Tex.), Vol. 4, No. 41, Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from Little Elm, Texas that includes local news along with advertising.
Date:
December 17, 1997
Creator:
Croomer, Laura
Object Type:
Newspaper
System:
The Portal to Texas History
Mannford Eagle (Mannford, Okla.), Vol. 16, No. 42, Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from Mannford, Oklahoma that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
Retherford, Bill R.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mercedes Enterprise (Mercedes, Tex.), Vol. 85, No. 51, Ed. 1 Wednesday, December 17, 1997
Weekly newspaper from Mercedes, Texas that includes local, state, and national news along with advertising.
Date:
December 17, 1997
Creator:
unknown
Object Type:
Newspaper
System:
The Portal to Texas History
Nd3+ and Yb3+ doped phosphate glass waveguides fabricated using electric field assisted Ag+ diffusion
Solid-state waveguide lasers offer several attractive features that may make high efficiency and effective thermal management possible. Due to the ability to confine pump light to high intensity over distances much longer than the Rayleigh range, as well as maintaining good overlap between the pump and Iasing modes over the entire guiding region, effcient operation with high slope efficiency should be possible, even for quasi-three level laser systems. Since the waveguide region is typically only a few microns of thickness, heat can be extracted efficiently from the structure. The effects of heating are of less significance than in bulk solid-state lasers because mode confinement is maintained by an index of refraction difference, usually much larger than tnat induced by dn/dT or stress-optic effects. Rare earth doped waveguide laser action has been reported in numerous papers [14]. The processes for fabricating waveguides include film deposition methods such as epitaxial growth, RF sputtering, and most recently, thermal bonding of precision finished crystals [5]. In addition, ion implantation, ion exchange in a molten salt and electric field assisted solid film diffusion [6] have been utilized. The ion exchange method remains the simplest, particularly for many common laser glasses that already have mobile ions, …
Date:
December 17, 1997
Creator:
Patel, F.D.; Honea, E.C.; Krol, D.; Payne, S.A. & Hayden, J.S.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: 311 Service]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 5:00 P.M.
Date:
December 17, 1997
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: DEF/Bus]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 10:00 P.M.
Date:
December 17, 1997
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: Fire Folo]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6:00 P.M.
Date:
December 17, 1997
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
[News Clip: HMO Suit]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story. This story aired at 6:00 P.M.
Date:
December 17, 1997
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library