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CsAlSi/sub 5/O/sub 12/: a possible host for /sup 137/Cs immobilization
CsAlSi/sub 5/O/sub 12/ exhibits more acid resistance than pollucite (CsAlSi/sub 2/O/sub 6/). At pH values of 1.02 and 1.40, the extraction of Cs from CsAlSi/sub 5/O/sub 12/ at 25/sup 0/C was approximately proportional to the square root of leach time. The Cs extraction at 25/sup 0/C varied as (H/sup +/)/sup 0/ /sup 36/ over the pH range of 1 to 6. Also, the Cs extraction in various brines at 300/sup 0/C/30 MPa was comparable with that for pollucite. CsAlSi/sub 5/O/sub 12/ can be crystallized at about 1000/sup 0/C from calcines if a small amount of CaO is present, but in the absence of such sintering acids, crystallization temperatures of about 1400/sup 0/C are necessary. Compatibility data were also obtained with respect to several other phases with which CsAlSi/sub 5/O/sub 12/ might be expected to coexist in tailored ceramics designed for high-level defense waste.
Date:
March 31, 1982
Creator:
Adl, T. & Vance, E.R.
Object Type:
Report
System:
The UNT Digital Library
Assessment of underground coal gasification in bituminous coals: catalog of bituminous coals and site selection. Appendix A. National coal resource data system: Ecoal, Wcoal, and Bmalyt. Final report, Phase I. [Bituminous coal; by state; coal seam depth and thickness; identification]
Appendix A is a catalog of the bituminous coal in 29 states of the contiguous United States which contain identified bituminous coal resources.
Date:
January 31, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
National forecast for geothermal resource exploration and development with techniques for policy analysis and resource assessment
The backgrund, structure and use of modern forecasting methods for estimating the future development of geothermal energy in the United States are documented. The forecasting instrument may be divided into two sequential submodels. The first predicts the timing and quality of future geothermal resource discoveries from an underlying resource base. This resource base represents an expansion of the widely-publicized USGS Circular 790. The second submodel forecasts the rate and extent of utilization of geothermal resource discoveries. It is based on the joint investment behavior of resource developers and potential users as statistically determined from extensive industry interviews. It is concluded that geothermal resource development, especially for electric power development, will play an increasingly significant role in meeting US energy demands over the next 2 decades. Depending on the extent of R and D achievements in related areas of geosciences and technology, expected geothermal power development will reach between 7700 and 17300 Mwe by the year 2000. This represents between 8 and 18% of the expected electric energy demand (GWh) in western and northwestern states.
Date:
March 31, 1982
Creator:
Cassel, T. A. V.; Shimamoto, G. T.; Amundsen, C. B.; Blair, P. D.; Finan, W. F.; Smith, M. R. et al.
Object Type:
Report
System:
The UNT Digital Library
Assessment of underground coal gasification in bituminous coals: potential UCG products and markets. Final report, Phase I
The following conclusions were drawn from the study: (1) The US will continue to require new sources of energy fuels and substitutes for petrochemical feedstocks into the foreseeable future. Most of this requirement will be met using coal. However, the cost of mining, transporting, cleaning, and preparing coal, disposing of ash or slag and scrubbing stack gases continues to rise; particularly, in the Eastern US where the need is greatest. UCG avoids these pitfalls and, as such, should be considered a viable alternative to the mining of deeper coals. (2) Of the two possible product gases LBG and MBG, MBG is the most versatile. (3) The most logical use for UCG product in the Eastern US is to generate power on-site using a combined-cycle or co-generation system. Either low or medium Btu gas (LBG or MBG) can be used. (4) UCG should be an option whenever surface gasification is considered; particularly, in areas where deeper, higher sulfur coal is located. (5) There are environmental and social benefits to use of UCG over surface gasification in the Eastern US. (6) A site could be chosen almost anywhere in the Illinois and Ohio area where amenable UCG coal has been determined due …
Date:
January 31, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Stability of ceramic waste forms in potential repository environments: a review
Most scenarios for geologic disposal of high-level nuclear waste include the eventual intrusion of groundwater into the repository. Reactions in the system and eventual release of the radionuclides, if any, will be controlled by the chemistry of the groundwater, the surrounding rock, the waste form, and any engineered barrier materials that are present, as well as by the temperature and pressure of the system. This report is a compilation and evaluation of the work completed to date on interactions within the waste-form/host-rock/groundwater system at various points in its lifetime. General results from leaching experiments are presented as a basis for comparison. The factors involved in studying the complete system are discussed so that future research may avoid some of the oversights of past research. Although relatively little hard data on prototype waste-form/repository-system interactions exist at this time, the available data and their implications are discussed. Sorption studies and models for predicting radionuclide migration are also presented, again with a study of the factors involved.
Date:
March 31, 1982
Creator:
Johnston, R. J. & Palmer, R. A.
Object Type:
Report
System:
The UNT Digital Library
Scattering of waves from a staggered difference scheme on a variable grid
We show experimentally that for a staggered scheme on a variable grid the numerical solution of the wave equation exhibits scattering of waves even when the grid varies slowly and the waves are smooth. We also show that this scattering is predicted very well by a modified equation, which thus serves as a backward error analysis.
Date:
March 31, 1982
Creator:
Chin, R.C.Y. & Hedstrom, G.W.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0153.0379]
Photograph used for a newspaper owned by the Oklahoma Publishing Company. Caption: "Soft, cold snow leaves plenty of room for deep footprints as Mandy Darnell, 6, left, and her brother Terry, 10, blaze fresh tracks in El Reno's Frank Knight Park early Friday."
Date:
December 31, 1982
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0154.0521]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Lee Ann Davis, 9, Norman, Miss National Preteen Pageants titleholder tips, her hat."
Date:
October 31, 1982
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0137.0621]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Vicki Cloud and Barbara Beeler set the table so the housewarmers can put out their potluck buffet."
Date:
July 31, 1982
Creator:
unknown
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0138.0805]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Water lines may lead to fines for Daniel Coker."
Date:
August 31, 1982
Creator:
McDaniel, David
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0350.0404]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Veteran deputy sheriff Larkin Lamb spent his last day on the job today."
Date:
March 31, 1982
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0312B.0623]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "During the Junior Hospitality Club's annual Cabaret kickoff dinner, member's husbands performed their version of the musical production."
Date:
January 31, 1982
Creator:
Miller, Joe
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0353.0715]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Lake Overholser appears to be swallowing this boathouse Sunday after weekend rain pushed waters higher."
Date:
January 31, 1982
Creator:
Albright, Bob
Object Type:
Photograph
System:
The Gateway to Oklahoma History
Trace-metal characterization and speciation in geothermal effluent by multiple-scanning anodic-stripping voltammetry and atomic-absorption analysis. Final report
The in-field sampling equipment constructed, procedures developed or adapted, and the results obtained on representative samples taken from geothermal sites are described.
Date:
December 31, 1982
Creator:
Kowalski, B.R.
Object Type:
Report
System:
The UNT Digital Library
Imperial County geothermal development. Quarterly report, January 1-March 31, 1982
The activities of the Geothermal Office are reported including: important geothermal events, geothermal waste disposal, grant applications to the California Energy Commission, the planned geothermal development meeting, and other geothermal planning activities. The activities of the Geothermal Planner include processing of applications for geothermal permits, processing of environmental impact reports, and other geothermal planning activities. The progress on the VTN Corporation direct heat study is discussed.
Date:
March 31, 1982
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Fluorescent scattering by molecules embedded in small particles. Progress report, February 1, 1981-January 31, 1982
In earlier work a model of fluorescent and Raman scattering by active molecules represented as classical electric dipoles embedded in small particles was developed. The intensity and angular distribution of the inelastically scattered radiation was shown to depend on the geometric and optical properties of the particle. The model was originally developed for particles having spherical shape and later extended to concentric spheres, cylinders, and prolate spheroids. The active molecules were originally assumed to be isotropically polarizable. The model has been recently extended to certain types of anisotropically polarizable molecules. The model had also been applied to particles having internal structure.
Date:
January 31, 1982
Creator:
Chew, H. & McNulty, P.J.
Object Type:
Article
System:
The UNT Digital Library
[Photograph 2012.201.B0329.0396]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Jill Kilpatrick, Katherine Levitz and Ann Lee."
Date:
May 31, 1982
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0354.0820]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Evelyn Lee, Mercy Hospital radiologist, holds new X-ray 'intensifying screen' that reduces the amount of radiation exposure to patients while extending the life of the entire X-ray machine."
Date:
August 31, 1982
Creator:
Southerland, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0518]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Dan Harlow, right, and Steve Story making their own kind of bluegrass music."
Date:
August 31, 1982
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0249.0697]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Norman - A jury Thursday deliberated eight hours before finding Michael Eugene Harmon guilty of killing Moore teen-ager Tamara Denise Cater."
Date:
August 31, 1982
Creator:
Klock, Roger
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262.0044]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "Adam Hinds has been summoned to call the signals for Oklahoma State on opening day."
Date:
August 31, 1982
Creator:
Beckel, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0255.0022]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Rose Heffington was Opry female vocalist of the year for 1982."
Date:
August 31, 1982
Creator:
Argo, Jim
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0262B.0219]
Photograph used for a story in the Daily Oklahoman newspaper. Caption: "David Hornbeek points out period photos to Mrs. Nesbitt and Matthew Nagle."
Date:
October 31, 1982
Creator:
Hellstern, Paul
Object Type:
Photograph
System:
The Gateway to Oklahoma History
[Photograph 2012.201.B0245.0423]
Photograph used for a story in the Oklahoma Times newspaper. Caption: "Fred Hall offers a mask to his date, Beverly White, Friday night at the Masked Ball in the Skirvin Plaza Hotel."
Date:
December 31, 1982
Creator:
Hoke, Doug
Object Type:
Photograph
System:
The Gateway to Oklahoma History