Partner
Oklahoma Historical Society
972
Texas Historical Commission
610
UNT Libraries Special Collections
610
UNT Libraries Government Documents Department
567
UNT Libraries
127
Hopkins County Genealogical Society
31
Sterling Municipal Library
27
Alvin Community College
22
Deaf Smith County Library
22
Carl Albert Congressional Research and Studies Center
14
80 More
Collection
Oklahoma Publishing Company Photography Collection
779
KXAS-NBC 5 News Collection
542
THC Historic Resources Survey Collection
469
Office of Scientific & Technical Information Technical Reports
451
Texas Digital Newspaper Program
376
Oklahoma Digital Newspaper Program
211
Tocker Foundation Grant
181
THC National Register Collection
137
UNT Theses and Dissertations
103
Technical Report Archive and Image Library
67
135 More
Serial/Series Title
Degree Department
Degree Discipline
Degree Level
Country
States
Year
Month
Results:
1 - 24 of
3,310
next
Structural analysis of the West Hackbery No. 6 SPR storage cavern
Four separate structural analyses of the West Hackberry No. 6 SPR storage cavern are presented. One analysis covers the creep response of the cavern beginning shortly before the time when an accidental fire occurred and proceeding through the cavern recertification pressure test. The second analysis models the surface uplife that is expected during the same pressure test. The third and fourth numerical studies investigate the structural response of West Hackberry No. 6 to slabbing and a rapid pressure drop. All analyses indicate that this cavern should be structurally stable for the conditions assumed.
Date:
August 1, 1980
Creator:
Benzley, S.E.
Object Type:
Report
System:
The UNT Digital Library
Organic components of nuclear wastes and their potential for altering radionuclide distribution when released to soil
Normal waste processing at the Hanford operations requires the use of many organic materials, chiefly in the form of complexing agents and diluents. These organic materials and their chemical and radiolytic degradation products, have potential for complexing fission products and transuranium elements, both in the waste streams and upon infiltration into soil, perhaps influencing future sorption or migration of the nuclides. Particular complexation characteristics of various nuclides which constitute the major fission products, long-lived isotopes, and the most mobile in radioactive wastes are discussed briefly with regards to their anticipated sorption or mobility in soils. Included in the discussion are Am, Sb, Ce, Cs, Co, Cm, Eu, I, Np, Pm, Pu, Ra, Ru, Sr, Tc, U, and Zr. 107 references.
Date:
August 1, 1980
Creator:
McFadden, K.M.
Object Type:
Report
System:
The UNT Digital Library
Biotelemetry study of spring and summer habitat selection by striped bass in Cherokee Reservoir, Tennessee, 1978. [Morone saxatilis]
Habitat selection of 31 adult striped bass was monitored by temperature sensing ultrasonic and radio transmitters in Cherokee Reservoir, Tennessee, from March through October 1978. This study sought to corroborate summer data obtained by Waddle (1979) in 1977 and to examine mechanisms of habitat selection by observing establishment of the summer distribution. During the spring and early summer months the striped bass ranged throughout the study area in the downstream half of the reservoir. Fish stayed near the bottom at the preferred temperatures throughout the whole study, and no individuals were observed in open water. Movement rates of up to 2.6 km/day were estimated, and rates of 1 km/day were common in the spring. By late July they were apparently avoiding low dissolved oxygen (D.O.) concentrations (<3 mg/l) near the bottom of the main reservoir and epilimnion temperatures greater than 22/sup 0/C, and they moved into cool, oxygenated spring or creek channels (refuges). Low movement rates of 0 to 25 m/day within these refuges occurred. The rates of the few migrations between refuges could not be estimated. Tagged fish moved out of the refuges 3 to 4 weeks after the fall overturn when reservoir temperatures approximated 22 to 24/sup 0/C.
Date:
August 1, 1980
Creator:
Schaich, B.A. & Coutant, C.C.
Object Type:
Report
System:
The UNT Digital Library
Environmental assessment for the Satellite Power System (SPS) Concept Development and Evaluation Program (CDEP). [Microwave and non-microwave health and ecological assessment]
In the satellite power system (SPS), satellites in geosynchronous earth orbit would collect solar energy in space, convert it to microwaves, and transmit the microwaves to receiving antennas (rectennas) on earth. At the rectennas, the microwave energy would be converted to electricity. This SPS environmental assessment considers the microwave and nonmicrowave effects on the terrestrial environment and human health, atmospheric effects, and effects on electromagnetic systems. No environmental problem has been identified that would preclude the continued study of SPS technology. To increase the certainty of the assessment, some research has been initiated and long-term research is being planned.
Date:
August 1, 1980
Creator:
Valentino, A.R.
Object Type:
Report
System:
The UNT Digital Library
Geostatistics project of the national uranium resource evaluation program. Progress report, October 1979-March 1980
During the period covered by this report, the authors investigated the serial properties of aerial radiometric data. Results were applied to the choice of minimum segment width in the maximum variance segments algorithm and to the use of aerial radiometric data in the design of ground sampling experiments. The report also presents the results of a comparison of normal and lognormal percentile estimation techniques. Twenty-two quadrangles are being analyzed in the search for a uranium favorability index. Computer codes developed during this investigation have been provided to the Bendix Field Engineering Corporation in Grand Junction, Colorado.
Date:
August 1, 1980
Creator:
Campbell, K.; Bement, T. R.; Howell, J. A.; Beckman, R. J.; Jackson, K. & Buslee, P.
Object Type:
Report
System:
The UNT Digital Library
Some recent developments in nuclear charged particle detectors
The latest developments of large-area, position sensitive gas-filled ionization chambers are described. Multi-wire-proportional chambers as position-sensing and parallel-plate-avalanche counters as time-sensing detectors at low pressure (5 torr) have proven to be useful and reliable instruments in heavy ion physics. Gas (proportional) scintillation counters, used mainly for x-ray spectroscopy, have recently been applied as particle detectors. Finally, a brief description of a large plastic scintillator spectrometer, the Plastic Ball, is given and some of the first test and calibration data are shown.
Date:
August 1, 1980
Creator:
Stelzer, H.
Object Type:
Article
System:
The UNT Digital Library
Progress report on the development of the General Atomic thermochemical water-splitting process
The major accomplishments of the DOE funded part of the GA thermochemical water-splitting program are reported. They include: completion of installation of all bench-scale equipment; operation and preliminary data acquisition for bench-scale subunits I and II; design, installation and operation of a system for iodine removal from the low phase; review and modification of Section III of the engineering flowsheet resulting in an increase in process efficiency and decrease in capital cost; and completion of the Funk panel reivew. The results of the experimental work have demonstrated that flowsheet conditions can be achieved in all cases tested. Continued work on the flowsheet has increased our confidence in the economic viability of the sulfur-iodine process.
Date:
August 1, 1980
Creator:
Besenbruch, G.E.; Allen, C.L.; Brown, L.C.; McCorkle, K.; Rode, J.S.; Norman, J.H. et al.
Object Type:
Article
System:
The UNT Digital Library
Methods of driving current by heating a toroidal plasma
In addition to the usual mechanism which utilizes the Ohmic transformer current, which is necessarily pulsed, there exist several steady-state mechanisms. Heating mechanisms which can lend themselves efficiently to continuous current generation include neutral beams, Alfven waves, ion-cyclotron waves, lower-hybrid waves and electron-cyclotron waves.
Date:
August 1, 1980
Creator:
Fisch, N. J.
Object Type:
Article
System:
The UNT Digital Library
HTGR safety philosophy
The accident at the Three Mile Island has focused public attention on reactor safety. Many public figures advocate a safer method of generating nuclear electricity for the second nuclear era in the US. The paper discusses the safety philosophy of a concept deemed suitable for this second nuclear era. The HTGR, in the course of its evolution, included safety as a significant determinant in design philosophy. This is particularly evident in the design features which provide inherent safety. Inherent features cause releases from a wide spectrum of accident conditions to be low. Engineered features supplement inherent features. The significance of HTGR safety features is quantified and order-of-magnitude type of comparisons are made with alternative ways of generating electricity.
Date:
August 1, 1980
Creator:
Joskimovic, V. & Fisher, C.R.
Object Type:
Article
System:
The UNT Digital Library
Bodcau In Situ Combustion Project. Third annual report, July 1, 1978-August 31, 1979
This project is a cooperative venture between Cities Service Company and the US Department of Energy. The main objective is to demonstrate the operation and economics of a successful commercial scale In Situ Combustion Project in a heavy oil reservoir. This Third Annual Report deals primarily with performance, development and economics of the project in the third year of operation, with pertinent information from the First and Second Annual Report included for background information. The five elongated patterns were developed for this demonstration on Cities Service Company's Bodcau Fee B lease in the Bellevue Field, Bossier, Parish, Louisiana. This field was discovered in 1921 and is a dome type structure covering approximately 900 productive acres. Production is from the Upper Cretaceous Nacatoch Sand occurring from 300 to 400 feet deep. Primary production by fluid expansion and later gravity drainage amounted to only about five percent of the original oil-in-place. Thirty-eight producers, five injectors and five temperature observation wells are included in the 19-acre project. Estimated recoverable reserves from the project is 700,000 barrels. During the first three years of the contract, cumulative air and water injection has been 7,046,589 MCF and 1,319,270 barrels. Oil production has been 449,816 barrels. This …
Date:
August 1, 1980
Creator:
Garvey, J.; Pusch, W. H. & Fulford, R. S.
Object Type:
Report
System:
The UNT Digital Library
Gravity survey of the Escalante Desert and vicinity, in Iron and Washington Counties, Utah
During the summers of 1978 and 1979, a total of 436 new gravity stations were taken in the southern part of the Escalante Desert and vicinity in Iron and Washington counties, Utah. The new stations were combined with 917 other stations taken in previous surveys, and a total of 1353 stations were used in this study, covering an area of about 2700 mi/sup 2/ (7000 km/sup 2/). The purpose of the study was to help evaluate the potential of geothermal resources within the survey area, which includes the Newcastle and Lund KGRA's. All the gravity data were terrain corrected out to a radial distance of 166.7 km from each station, using a computer terrain-correction program. The data were compiled and presented as a complete Bouguer gravity anomaly map with a 2-mgal contour interval. A geologic interpretation of the gravity data was made qualitatively from the gravity map and also quantitatively from four easterly trending gravity profiles taken across the area.
Date:
August 1, 1980
Creator:
Pe, W. & Cook, K.L.
Object Type:
Report
System:
The UNT Digital Library
Separate effects test stand for obtaining hydrotransport data
Based on earlier hydrotransport research by English and Russian researchers, a special test stand has been designed and constructed to obtain data to determine hydraulic drag, pipe wear, and comminution of particles. These data are intended for design and separate-effects operating information. This information will be used to supplement data developed by the Hydrotransport Research Facility located at the Pittsburgh Mining Operations, Pittsburgh, Pennsylvania. This report describes the equipment as designed, explains how the hydraulic drag is calculated using test-stand data, and presents some preliminary tests results using water. Tests using water are continuing to further substantiate the system and later, tests will be started using slurries.
Date:
August 1, 1980
Creator:
Allen, C. H.
Object Type:
Report
System:
The UNT Digital Library
Two-phase flow studies. Final report
Progress on the following is reported: literature survey, design of two-phase flow testing facility, design of nozzle loop, thermophysical properties, design manual, and advanced energy conversion systems. (MHR)
Date:
August 1, 1980
Creator:
Kestin, J. & Maeder, P. F.
Object Type:
Report
System:
The UNT Digital Library
Environmental Assessment: geothermal direct heat project, Marlin, Texas
The Federal action addressed by this Environmental Assessment (EA) is joint funding the retrofitting of a heating and hot water system in a hospital at Marlin, Texas, with a geothermal preheat system. The project will be located within the existing hospital boiler room. One supply well was drilled in an existing adjacent parking lot. It was necessary to drill the well prior to completion of this environmental assessment in order to confirm the reservoir and to obtain fluids for analysis in order to assess the environmental effects of fluid disposal. Fluid from operation will be disposed of by discharging it directly into existing street drains, which will carry the fluid to Park Lake and eventually the Brazos River. Fluid disposal activities are regulated by the Texas Railroad Commission. The local geology is determined by past displacements in the East Texas Basin. Boundaries are marked by the Balcones and the Mexia-Talco fault systems. All important water-bearing formations are in the cretaceous sedimentary rocks and are slightly to highly saline. Geothermal fluids are produced from the Trinity Group; they range from approximately 3600 to 4000 ppM TDS. Temperatures are expected to be above 64/sup 0/C (147/sup 0/F). Surface water flows southeastward as …
Date:
August 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Compositional analysis technique for HNS/Kel-F 800
A compositional analysis procedure for the plastic-bonded explosive consisting of HNS and Kel-F 800 is presented. The Kel-F is determined gravimetrically after extraction of the HNS with fuming nitric acid. The HNS content is calculated by difference.
Date:
August 1, 1980
Creator:
Sandoval, J.
Object Type:
Report
System:
The UNT Digital Library
Identifying suitable "piercement" salt domes for nuclear waste storage sites
Piercement salt domes of the northern interior salt basins of the Gulf of Mexico are being considered as permanent storage sites for both nuclear and chemically toxic wastes. The suitable domes are stable and inactive, having reached their final evolutionary configuration at least 30 million years ago. They are buried to depths far below the level to which erosion will penetrate during the prescribed storage period and are not subject to possible future reactivation. The salt cores of these domes are themselves impermeable, permitting neither the entry nor exit of ground water or other unwanted materials. In part, a stable dome may be recognized by its present geometric configuration, but conclusive proof depends on establishing its evolutionary state. The evolutionary state of a dome is obtained by reconstructing the growth history of the dome as revealed by the configuration of sedimentary strata in a large area (commonly 3,000 square miles or more) surrounding the dome. A high quality, multifold CDP reflection seismic profile across a candidate dome will provide much of the necessary information when integrated with available subsurface control. Additional seismic profiles may be required to confirm an apparent configuration of the surrounding strata and an interpreted evolutionary history. …
Date:
August 1, 1980
Creator:
Kehle, R.
Object Type:
Report
System:
The UNT Digital Library
High-level waste program progress report, April 1, 1980-June 30, 1980
The highlights of this report are on: waste management analysis for nuclear fuel cycles; fixation of waste in concrete; study of ceramic and cermet waste forms; alternative high-level waste forms development; and high-level waste container development.
Date:
August 1, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Mechanism for Diffusion Induced Grain Boundary Migration
Grain boundaries are found to migrate under certain conditions when solute atoms are diffused along them. This phenomenon, termed diffusion induced grain boundary migration (DIGM), has now been found in six systems. The observed phenomenon and empirical data are used to discard certain concepts for the driving force and the mechanism. A mechanism is proposed in which differences in the diffusion coefficients of the diffusing species along the grain boundary cause a self-sustaining climb of grain boundary dislocations and motion of their associated grain boundary steps.
Date:
August 1, 1980
Creator:
Balluffi, R. W. & Cahn, J. W.
Object Type:
Report
System:
The UNT Digital Library
Inelastic processes in seismic wave generation by underground explosions
Theories, computer calculations, and measurements of spherical stress waves from explosions are described and compared, with emphasis on the transition from inelastic to almost-elastic relations between stress and strain. Two aspects of nonspherical explosion geometry are considered: tectonic strain release and surface spall. Tectonic strain release affects the generation of surface waves; spall closure may also. The reduced-displacement potential is a common solution (the equivalent elastic source) of the forward and inverse problems, assuming a spherical source. Measured reduced-displacement potentials are compared with potentials calculated as solutions of the direct and inverse problems; there are significant differences between the results of the two types of calculations and between calculations and measurements. The simple spherical model of an explosion is not sufficient to account for observations of explosions over wide ranges of depth and yield. The explosion environment can have a large effect on explosion detection and yield estimation. The best sets of seismic observations for use in developing discrimination techniques are for high-magnitude high-yield explosions; the identification problem is most difficult for low-magnitude low-yield explosions. Most of the presently available explosion data (time, medium, depth, yield, etc.) are for explosions in a few media at the Nevada Test Site; some …
Date:
August 1, 1980
Creator:
Rodean, H.C.
Object Type:
Report
System:
The UNT Digital Library
Geology, hydrothermal petrology, stable isotope geochemistry, and fluid inclusion geothermometry of LASL geothermal test well C/T-1 (Mesa 31-1), East Mesa, Imperial Valley, California, USA
Borehole Mesa 31-1 (LASL C/T-1) is an 1899-m (6231-ft) deep well located in the northwestern part of the East Mesa Geothermal Field. Mesa 31-1 is the first Calibration/Test Well (C/T-1) in the Los Alamos Scientific Laboratory (LASL), Geothermal Log Interpretation Program. The purpose of this study is to provide a compilation of drillhole data, drill cuttings, well lithology, and formation petrology that will serve to support the use of well LASL C/T-1 as a calibration/test well for geothermal logging. In addition, reviews of fluid chemistry, stable isotope studies, isotopic and fluid inclusion geothermometry, and the temperature log data are presented. This study provides the basic data on the geology and hydrothermal alteration of the rocks in LASL C/T-1 as background for the interpretation of wireline logs.
Date:
August 1, 1980
Creator:
Miller, K. R. & Elders, W. A.
Object Type:
Report
System:
The UNT Digital Library
Fuel temperature determination for ICF microspheres
The common heuristic expression for estimating thermonuclear burn in ICF microspheres far from bootstrap heating is often used for inversion to obtain peak temperatures from experimental data. It contains an ad hoc or fitted parameter and lacks some parameters of obvious influence in actual systems. We present an alternative expression, which may be usefully inverted and does not suffer these defects.
Date:
August 1, 1980
Creator:
Henderson, D.B. & Giovanielli, D.V.
Object Type:
Report
System:
The UNT Digital Library
Suppression of superheavy magnetic monopoles in grand unified theories
The superheavy magnetic monopoles predicted by grand unified theories would not be produced in significant numbers if electromagnetic gauge invariance is spontaneously broken when the temperature T is greater than T/sub c/ >approx. 1 TeV.
Date:
August 1, 1980
Creator:
Pi, S.Y.
Object Type:
Article
System:
The UNT Digital Library
Study of rock-water-nuclear waste interactions in the Pasco Basin, Washington: Part II. Preliminary equilibrium-step simulations of basalt diagenesis
Interactions between a large number of complex chemical and physical processes have resulted in significant changes in the Pasco Basin hydrochemical system since emplacement of the first basalt flow. In order to perform preliminary simulations of the chemical evolution of this system, certain simplifying assumptions and procedures were adopted and a computer model which operates on the principal of local equilibrium was used for the mass transfer calculations. Significant uncertainties exist in both the thermodynamic and reaction rate data which were input to the computer model. In addition, the compositional characteristics of the evolving hydrochemical system remain largely unknown, especially as a function of distance along the flow path. Given these uncertainties, it remains difficult to assess the applicability of the equilibrium-step approach even though reasonable matches between observed and simulated hydrochemical data were obtained. Given the uncertainties mentioned, the predictive abilities of EQ6 are difficult, if not impossible to evaluate; our simulations produced, at best, only qualitative agreement with observed product mineral assemblages and sequences, and fluid compositions.
Date:
August 1, 1980
Creator:
Benson, L. V.; Carnahan, C. L. & Che, M.
Object Type:
Report
System:
The UNT Digital Library
Terrestrial perturbation experiments as an environmental assessment tool
The National Environmental Policy Act of 1969 (NEPA) was initially interpreted as requiring full disclosure of the environmental impacts of a federal action. Because of the limitations of time, money, and manpower, this requirement that all impacts be considered has led to superficial analysis of many important impacts. The President's Council on Environmental Quality (CEQ) has provided a solution to this problem by reinterpreting NEPA as requiring analysis of those impacts which have significant bearing on decision making. Because assessment resources can now be concentrated on a few critical issues, it should be possible to perform field perturbation experiments to provide direct evidence of the effects of a specific mixture of pollutants or physical disturbances on the specific receiving ecosystem. Techniques are described for field simulation of gaseous and particulate air pollution, soil pollutants, disturbance of the earth's surface, and disturbance of wildlife. These techniques are discussed in terms of their realism, cost, and the restrictions which they place on the measurement of ecological parameters.
Date:
August 1, 1980
Creator:
Suter, G. W. II
Object Type:
Report
System:
The UNT Digital Library