Serial/Series Title
Fiscal Year 1997
8
OIT Best Practices
7
ACRH Semiannual Report on Medical Research
6
Energy Star Lighting Verification Program Semi-Annual Report
6
Fiscal Year 1995
5
Fiscal Year 1998
5
Fiscal Year 2000
5
LWBR Development Program
5
Small Wind Electric Systems Consumers' Guides
5
Fiscal Year 1994
4
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Geomorphology of plutonium in the Northern Rio Grande
Nearly all of the plutonium in the natural environment of the Northern Rio Grande is associated with soils and sediment, and river processes account for most of the mobility of these materials. A composite regional budget for plutonium based on multi-decadal averages for sediment and plutonium movement shows that 90 percent of the plutonium moving into the system is from atmospheric fallout. The remaining 10 percent is from releases at Los Alamos. Annual variation in plutonium flux and storage exceeds 100 percent. The contribution to the plutonium budget from Los Alamos is associated with relatively coarse sediment which often behaves as bedload in the Rio Grande. Infusion of these materials into the main stream were largest in 1951, 1952, 1957, and 1968. Because of the schedule of delivery of plutonium to Los Alamos for experimentation and weapons manufacturing, the latter two years are probably the most important. Although the Los Alamos contribution to the entire plutonium budget was relatively small, in these four critical years it constituted 71--86 percent of the plutonium in bedload immediately downstream from Otowi.
Date:
March 1, 1993
Creator:
Graf, William L.
Object Type:
Report
System:
The UNT Digital Library
First report to the US Congress and the US Secretary of Energy
The disposal of the Nation`s spent nuclear fuel and high-level waste has been studied for many years. The Nuclear Waste Policy Act of 1982 and the subsequent Nuclear Waste Policy Amendments Act (NWPAA) of 1987 provide the legislative framework under which the Department of Energy (DOE) must operate when evaluating potential sites for the geologic disposal of spent nuclear fuel and high-level waste. Additionally, the DOE must comply with regulations published by the Environmental Protection Agency (EPA) in 40 CFR 191, ``Environmental Radiation Protection Standards for Management and Disposal of Spent Nuclear Fuel, High-Level and Transuranic Radioactive Wastes`` and the Nuclear Regulatory Commission (NRC) in 10 CFR 60. ``Disposal of High-Level Radioactive Wastes in Geologic Repositories.`` The DOE also operates under its own regulation, 10 CFR 960. ``General Guidelines for the Recommendation of Sites for Nuclear Waste Repositories.`` The DOE has devoted considerable resources to this pro gram, which is managed by the Office of Civilian Radioactive Waste Management (OCRWM). Disposal of spent nuclear fuel and high-level waste in a geologic repository has never before been done anywhere in the world. Since this is a first-of-a-kind facility, extreme care must be taken to ensure that all environmental and public health …
Date:
March 1, 1990
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
U.S. Contribution 1994 Summary Report Task T12: Compatibility and irradiation testing of vanadium alloys
Vanadium alloys exhibit important advantages as a candidate structural material for fusion first wall/blanket applications. These advantages include fabricability, favorable safety and environmental features, high temperature and high wall load capability, and long lifetime under irradiation. Vanadium alloys with (3-5)% chromium and (3-5)% titanium appear to offer the best combination of properties for first wall/blanket applications. A V-4Cr-4Ti alloy is recommended as the reference composition for the ITER application. This report provides a summary of the R&D conducted during 1994 in support of the ITER Engineering Design Activity. Progress is reported for Vanadium Alloy Production, Welding, Physical Properties, Baseline Mechanical Properties, Corrosion/Compatibility, Neutron Irradiation Effects, Helium Transmutation Effects on Irradiated Alloys, and the Status of Irradiation Experiments. Separate abstracts have been prepared for individual reports from this publication.
Date:
March 1, 1995
Creator:
Smith, D. L.
Object Type:
Report
System:
The UNT Digital Library
Enumeration and characterization of microorganisms associated with the uranium ore deposit at Cigar Lake, Canada; Informal report
The high-grade uranium deposit at Cigar Lake, Canada, is being investigated as a natural analog for the disposal of nuclear fuel waste. Geochemical aspects of the site have been studied in detail, but the microbial ecology has not been fully investigated. Microbial populations in an ore sample and in groundwater samples from the vicinity of the ore zone were examined to determine their effect on uranium mobility. Counts of the total number of bacteria and of respiring bacteria were obtained by direct microscopy, and the viable aerobic and anaerobic bacteria were assessed as colony forming units (CFUs) by the dilution plating technique. In addition, the population distribution of denitrifiers, fermenters, iron- and sulfur-oxidizers, iron- and sulfate-reducers, and methanogens was determined by the most probable number (MPN) technique.
Date:
March 1, 1994
Creator:
Francis, A. J.; Joshi-Tope, G.; Gillow, J. B. & Dodge, C. J.
Object Type:
Report
System:
The UNT Digital Library
Retractable spiked barrier strip for law enforcement
The Idaho National Engineering Laboratory has designed an laboratory tested a prototype retractable spiked barrier strip for law enforcement. The proposed system, which is ready for controlled field testing, expands the functionality of existing spiked barrier strips. A retractable barrier strip, one that can place the spikes in either the active (vertical) or passive (horizontal) position, would allow law enforcement personnel to lay the unobtrusive strip across a road far in advance of a fleeing vehicle. No damage occurs to passing vehicles until the spikes are activated, and that can be done from a safe distance and at a strategic location when the offending vehicle is close to the strip. The concept also allows the strips to be place safely across several roadways that are potential paths of a fleeing vehicle. Since they are not activated until needed, they are harmless to nonoffending vehicles. The laboratory tests conducted on the system indicate that it will puncture tires only when the spikes are rotated to the active position and is safe to travel over when the spikes are in the down position. The strip itself will not cause instability to a vehicle driving over it, nor is the strip disturbed or …
Date:
March 1, 1995
Creator:
Marts, Donna J. & Barker, Stacey G.
Object Type:
Report
System:
The UNT Digital Library
Emissions model of waste treatment operations at the Idaho Chemical Processing Plant
An integrated model of the waste treatment systems at the Idaho Chemical Processing Plant (ICPP) was developed using a commercially-available process simulation software (ASPEN Plus) to calculate atmospheric emissions of hazardous chemicals for use in an application for an environmental permit to operate (PTO). The processes covered by the model are the Process Equipment Waste evaporator, High Level Liquid Waste evaporator, New Waste Calcining Facility and Liquid Effluent Treatment and Disposal facility. The processes are described along with the model and its assumptions. The model calculates emissions of NO{sub x}, CO, volatile acids, hazardous metals, and organic chemicals. Some calculated relative emissions are summarized and insights on building simulations are discussed.
Date:
March 1, 1995
Creator:
Schindler, R.E.
Object Type:
Report
System:
The UNT Digital Library
National Low-Level Waste Management Program Radionuclide Report Series, Volume 17: Plutonium-239
This report, Volume 17 of the National Low-Level Waste Management Program Radionuclide Report Series, discusses the radiological and chemical characteristics of plutonium-239 (Pu-239). This report also discusses waste types and forms in which Pu-239 can be found, waste and disposal information on Pu-239, and Pu-239 behavior in the environment and in the human body.
Date:
March 1, 1999
Creator:
Adams, J. P. & Carboneau, M. L.
Object Type:
Report
System:
The UNT Digital Library
The ALEXIS mission recovery
The authors report the recovery of the ALEXIS small satellite mission. ALEXIS is a 113-kg satellite that carries an ultrasoft x-ray telescope array and a high-speed VHF receiver/digitizer (BLACKBEARD), supported by a miniature spacecraft bus. It was launched by a Pegasus booster on 1993 April 25, but a solar paddle was damaged during powered flight. Initial attempts to contact ALEXIS were unsuccessful. The satellite finally responded in June, and was soon brought under control. Because the magnetometer had failed, the rescue required the development of new attitude control-techniques. The telemetry system has performed nominally. They discuss the procedures used to recover the ALEXIS mission.
Date:
March 1, 1994
Creator:
Bloch, J.; Armstrong, T.; Dingler, B.; Enemark, D.; Holden, D.; Little, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Mexico City Air Quality Research Initiative; Volume 5, Strategic evaluation
Members of the Task HI (Strategic Evaluation) team were responsible for the development of a methodology to evaluate policies designed to alleviate air pollution in Mexico City. This methodology utilizes information from various reports that examined ways to reduce pollutant emissions, results from models that calculate the improvement in air quality due to a reduction in pollutant emissions, and the opinions of experts as to the requirements and trade-offs that are involved in developing a program to address the air pollution problem in Mexico City. The methodology combines these data to produce comparisons between different approaches to improving Mexico City`s air quality. These comparisons take into account not only objective factors such as the air quality improvement or cost of the different approaches, but also subjective factors such as public acceptance or political attractiveness of the different approaches. The end result of the process is a ranking of the different approaches and, more importantly, the process provides insights into the implications of implementing a particular approach or policy.
Date:
March 1, 1994
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
The growth of the oceanic boundary layer during the COARE intensive observational period: Large Eddy simulation results
A principal goal of the Tropical Ocean Global Atmosphere (TOGA) Coupled Ocean-Atmosphere Response Experiment (COARE) is to gain an understanding of the processes that control mixing in the upper 100 m of the western tropical Pacific warm pool. The warm pool is an important heat reservoir for the global ocean and is responsible for many of the observed climatic changes associated with El Nino/Southern Oscillation (ENSO) events. This water mass is highly sensitive to mixed-layer processes that are controlled by surface heat, salinity, and momentum fluxes. During most of the year, these fluxes are dominated by solar heating and occasional squalls that freshen the top of the mixed layer and force shallow mixing of about 10-20 m. From November to April, the usual weather pattern is frequently altered by westerly wind bursts that are forced by tropical cyclones and intraseasonal oscillations. These wind bursts generate a strong eastward surface current and can force mixing as deep as 100 m over a period of days. Observations from the intensive observation period (IOP) in COARE indicate that mixed-layer deepening is accompanied by strong turbulence dissipation at the mixed layer base. A short westerly wind burst occurred during the first leg of TOGA-COARE, …
Date:
March 1, 1995
Creator:
Skyllingstad, E. D.; Wijesekera, H. W. & Gregg, M. C.
Object Type:
Article
System:
The UNT Digital Library
Ballooning-mirror instability and internally driven Pc 4--5 wave events
A kinetic-MHD field-aligned eigenmode stability analysis of low frequency ballooning-mirror instabilities has been performed for anisotropic pressure plasma sin the magnetosphere. The ballooning mode is mainly a transverse wave driven unstable by pressure gradient in the bad curvature region. The mirror mode with a dominant compressional magnetic field perturbation is excited when the product of plasma beta and pressure anisotropy (P{sub {perpendicular}}/P{sub {parallel}} > 1) is large. From the AMPTE/CCE particle and magnetic field data observed during Pc 4--5 wave events the authors compute the ballooning-mirror instability parameters and perform a correlation study with the theoretical instability threshold. They find that compressional Pc 5 waves approximately satisfy the ballooning-mirror instability condition, and transverse Pc 4--5 waves are probably related to resonant ballooning instabilities with small pressure anisotropy.
Date:
March 1, 1994
Creator:
Cheng, C. Z.; Qian, Q.; Takahashi, K. & Lui, A. T. Y.
Object Type:
Report
System:
The UNT Digital Library
Distribution coefficient values describing iodine, neptunium, selenium, technetium, and uranium sorption to Hanford sediments. Supplement 1
Burial of vitrified low-level waste (LLW) in the vadose zone of the Hanford Site is being considered as a long-term disposal option. Regulations dealing with LLW disposal require that performance assessment (PA) analyses be conducted. Preliminary modeling efforts for the Hanford Site LLW PA were conducted to evaluate the potential health risk of a number of radionuclides, including Ac, Am, C, Ce, Cm, Co, Cs, Eu, 1, Nb, Ni, Np, Pa, Pb, Pu, Ra, Ru, Se, Sn, Sr, Tc, Th, U, and Zr (Piepho et al. 1994). The radionuclides, {sup 129}I, {sup 237}Np, {sup 79}Se, {sup 99}Tc, and {sup 234,235,238}U, were identified as posing the greatest potential health hazard. It was also determined that the outcome of these simulations were very sensitive to the parameter describing the extent to which radionuclides sorbed to the subsurface matrix, described as a distribution coefficient (K{sub d}). The distribution coefficient is a ratio of the radionuclide concentration associated with the solid phase to that in the liquid phase. The literature-derived K{sub d} values used in these simulations were conservative, i.e., lowest values within the range of reasonable values used to provide an estimate of the maximum health threat. Thus, these preliminary modeling results reflect …
Date:
March 1, 1995
Creator:
Kaplan, D.I. & Seme, R.J.
Object Type:
Report
System:
The UNT Digital Library
Formation of metal oxides by cathodic arc deposition
Metal oxide thin films are of interest for a number of applications. Cathodic arc deposition, an established, industrially applied technique for formation of nitrides (e.g. TiN), can also be used for metal oxide thin film formation. A cathodic arc plasma source with desired cathode material is operated in an oxygen atmosphere, and metal oxides of various stoichiometric composition can be formed on different substrates. We report here on a series of experiments on metal oxide formation by cathodic arc deposition for different applications. Black copper oxide has been deposited on ALS components to increase the radiative heat transfer between the parts. Various metal oxides such as tungsten oxide, niobium oxide, nickel oxide and vanadium oxide have been deposited on ITO glass to form electrochromic films for window applications. Tantalum oxide films are of interest for replacing polymer electrolytes. Optical waveguide structures can be formed by refractive index variation using oxide multilayers. We have synthesized multilayers of Al{sub 2}O{sub 3}/Y{sub 2}O{sub 3}/AI{sub 2}O{sub 3}/Si as possible basic structures for passive optoelectronic integrated circuits, and Al{sub 2-x}Er{sub x}O{sub 3} thin films with a variable Er concentration which is a potential component layer for the production of active optoelectronic integrated devices such as …
Date:
March 1, 1995
Creator:
Anders, S.; Anders, A.; Rubin, M.; Wang, Z.; Raoux, S.; Kong, F. et al.
Object Type:
Article
System:
The UNT Digital Library
An attrition-resistant zinc titanate sorbent for sulfur; [Quarterly] report, September 1--November 30, 1993
In the continuing search for good sorbent materials to remove sulfur from hot, coal-derived gases, zinc titanate sorbents have shown great promise. The objective of this project is to extend the effort started last year on increasing the strength and durability of zinc titanate sorbents with little or no loss in chemical reactivity. The principle is to contain Zn{sub 2}TiO{sub 4} in a structural matrix of excess TiO{sub 2}. A fluidized bed test was completed this quarter on the first of two promising sorbent formulations. The chemical reactivity in the form of breakthrough curves became progressively better over ten sulfidation-regeneration cycles. While the chemical reactivity was very good, the attrition resistance was only fair, due presumably to the conversion of Zn{sub 2}TiO{sub 4} to ZnTiO{sub 3} during cycling. The next formulation to be tested is expected to be better in attrition resistance.
Date:
March 1, 1994
Creator:
Swisher, James H.; O`Brien, William S. & Gupta, Raghubir P.
Object Type:
Report
System:
The UNT Digital Library
Rheology of coal-water slurries prepared by the HP roll mill grinding of coal. Quarterly technical progress report No. 2, December 1, 1992--February 28, 1993
The rheological behavior of coal-water slurries made with Pittsburgh No. 8 coal at four solids contents was investigated with the Haake viscometer after conditioning for 16 hours at 200C. The results show that the viscosity of the slurries increases as the solids content is increased. Slurries at high solid-liquid ratios not only exhibit significant yield stresses but also viscosities which decrease with increasing in the shear rate. It was found that the empirical Heschel-Buckley equation fits the measured shear stress of slurries at different shear rates quite well. The standard deviation of the shear stress of coal-water slurries measured with the Haake viscometer was found to be less than 10%. The apparent viscosities measured with the Brookfield Synchro-Lectric LVT viscometer were comparable with values obtained with the Haake Rotovisco RV12 viscometer for slurries having solids contents of 50 and 55 wt%. In studying the effect of conditioning time on the measured viscosity of coal-water slurries (at 60 wt% solids content), it was observed that the viscosity of a slurry increases when the conditioning time is increased from 0.25 to 0.75 hour and then decreases when the conditioning time is increased further. The initial increase in viscosity with conditioning time is …
Date:
March 1, 1993
Creator:
Fuerstenau, D.W.
Object Type:
Report
System:
The UNT Digital Library
Energy Information Administration (EIA) new releases, January--February 1994
This report is the Jan-Feb 1994 issue of the Energy Information Administration (EIA) New Releases publication. Highlighted articles include: efficiency gains slow growth in U.S. energy demand, dependency on oil imports continues to climb; new EIA report details status of U.S. coal industry; EIA assesses residential vehicle fuel consumption in the U.S.; EIA plans new survey on alternative-fuel vehicles.
Date:
March 1, 1994
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Effects of Dissolved Gas Supersaturation on Fish Residing in the Snake and Columbia Rivers, 1996 Annual Report.
Increased spill at dams has commonly brought dissolved gas supersaturation higher than levels established by state and federal water quality criteria in the Columbia and Snake Rivers. These increased spill volumes are intended to provide safe passage for migrating juvenile salmon. However, dissolved gas supersaturation resulting from spill in past decades has led to gas bubble disease (GBD) in fish. Therefore, during the period of high spill in 1996, the authors monitored the prevalence and severity of gas bubble disease by sampling resident fish in Priest Rapids Reservoir and downstream from Bonneville, Priest Rapids, and Ice Harbor Dams.
Date:
March 1, 1998
Creator:
Schrank, Boyd P.
Object Type:
Report
System:
The UNT Digital Library
First results from experiment NA49 at the CERN SPS with 158 GeV/nucleon Pb on Pb collisions
CERN experiment NA49 had its first beam time in November/December 1994 with a {sup 208}Pb beam of 158 GeV/nucleon. The experimental setup to study Pb+Pb collisions is described and first results on two particle correlations and transverse energy production are discussed.
Date:
March 1, 1995
Creator:
Rudolph, H. & Collaboration, NA49
Object Type:
Report
System:
The UNT Digital Library
Experimental designs for testing differences in survival among salmonid populations
The Yakima Fisheries Project (YFP) is a supplementation plan for enhancing salmon runs in the Yakima River basin. It is presumed that inadequate spawning and rearing, habitat are limiting, factors to population abundance of spring chinook salmon. Therefore, the supplementation effort for spring chinook salmon is focused on introducing hatchery-raised smolts into the basin to compensate for the lack of spawning habitat. However, based on empirical evidence in the Yakima basin, hatchery-reared salmon have survived poorly compared to wild salmon. Therefore, the YFP has proposed to alter the optimal conventional treatment (OCT), which is the state-of-the-art hatchery rearing method, to a new innovative treatment (NIT). The NIT is intended to produce hatchery fish that mimic wild fish and thereby to enhance their survival over that of OCT fish. A limited application of the NIT (LNIT) has also been proposed to reduce the cost of applying the new treatment, yet retain the benefits of increased survival. This research was conducted to test whether the uncertainty using the experimental design was within the limits specified by the Planning Status Report (PSR).
Date:
March 1, 1995
Creator:
Hoffmann, A.; Busack, C. & Knudsen, C.
Object Type:
Article
System:
The UNT Digital Library
Stability of bootstrap current driven magnetic islands in stellarators
The stability of magnetic island producing perturbations due to fluctuations in the bootstrap current in stellarator configuration is examined. The stability criterion depends on the sign of the derivative of the rotational transform, the pressure gradient and the direction of the equilibrium bootstrap current which is determined by the structure of {parallel}B{parallel}. It is found that quasi-helically symmetric stellarator configurations with p{prime}/{tau}{prime} < 0 are unstable to the formation of bootstrap current driven magnetic islands. The stability of conventional stellarator configurations depends upon the field structure.
Date:
March 1, 1994
Creator:
Hegna, C. C. & Callen, J. D.
Object Type:
Report
System:
The UNT Digital Library
Catalog of documents produced by the Greater-Than-Class C Low-Level Waste Management Program
This catalog provides a ready reference for documents prepared by the Greater-Than-Class C Low-Level Waste (GTCC LLW) Management Program. The GTCC LLW Management Program is part of the National Low-Level Waste Management Program (NLLWMP). The NLLWMP is sponsored by the US Department of Energy (DOE) and is responsible for assisting the DOE in meeting its obligations under Public Law 99-240, The Low-Level Radioactive Waste Policy Amendments Act of 1985. This law assigns DOE the responsibility of ensuring the safe disposal of GTCC LLW in a facility licensed by the Nuclear Regulatory Commission (NRC). The NLLWMP is managed at the Idaho National Engineering Laboratory (INEL).
Date:
March 1, 1995
Creator:
Winberg, M. R.
Object Type:
Report
System:
The UNT Digital Library
Catalyst and process development for synthesis gas conversion to isobutylene. Final report, September 1, 1990--January 31, 1994
This project was initiated because the supply of isobutylene had been identified as a limitation on the production of methyl-t-butyl ether, a gasoline additive. Prior research on isobutylene synthesis had been at low conversion (less than 5%) or extremely high pressures (greater than 300 bars). The purpose of this research was to optimize the synthesis of a zirconia based catalyst, determine process conditions for producing isobutylene at pressures less than 100 bars, develop kinetic and reactor models, and simulate the performance of fixed bed, trickle bed and slurry flow reactors. A catalyst, reactor models and optimum operating conditions have been developed for producing isobutylene from coal derived synthesis gas. The operating conditions are much less severe than the reaction conditions developed by the Germans during and prior to WWII. The low conversion, i.e. CO conversion less than 15%, have been perceived to be undesirable for a commercial process. However, the exothermic nature of the reaction and the ability to remove heat from the reactor could limit the extent of conversion for a fixed bed reactor. Long residence times for trickle or slurry (bubble column) reactors could result in high CO conversion at the expense of reduced selectivities to iso C{sub …
Date:
March 1, 1995
Creator:
Anthony, R. G.; Akgerman, A.; Philip, C. V.; Erkey, C.; Feng, Z.; Postula, W. S. et al.
Object Type:
Report
System:
The UNT Digital Library
T2CG1, a package of preconditioned conjugate gradient solvers for TOUGH2
Most of the computational work in the numerical simulation of fluid and heat flows in permeable media arises in the solution of large systems of linear equations. The simplest technique for solving such equations is by direct methods. However, because of large storage requirements and accumulation of roundoff errors, the application of direct solution techniques is limited, depending on matrix bandwidth, to systems of a few hundred to at most a few thousand simultaneous equations. T2CG1, a package of preconditioned conjugate gradient solvers, has been added to TOUGH2 to complement its direct solver and significantly increase the size of problems tractable on PCs. T2CG1 includes three different solvers: a Bi-Conjugate Gradient (BCG) solver, a Bi-Conjugate Gradient Squared (BCGS) solver, and a Generalized Minimum Residual (GMRES) solver. Results from six test problems with up to 30,000 equations show that T2CG1 (1) is significantly (and invariably) faster and requires far less memory than the MA28 direct solver, (2) it makes possible the solution of very large three-dimensional problems on PCs, and (3) that the BCGS solver is the fastest of the three in the tested problems. Sample problems are presented related to heat and fluid flow at Yucca Mountain and WIPP, environmental …
Date:
March 1, 1994
Creator:
Moridis, G.; Pruess, K. & Antunez, E.
Object Type:
Report
System:
The UNT Digital Library
Geological and Petrophysical Characterization of the Ferron Sandstone for 3-D Simulation of a Fluvial-Deltaic Reservoir
The objective of this project is to develop a comprehensive, interdisciplinary, and quantitative characterization of a fluvial-deltaic reser v oir which will allow realistic inter-well and reservoir-scale modeling to be constructed for improved oil-field development in similiar reservoirs world-wide. The geological and petrophysical properties of the Cretaceous Ferron Sandstone in east-central Utah will be quantitatively determined . Both new and existing data will be integrated into a three-dimensional representation of spatial variations in porosity, storativity, and tensorial rock permeability at a scale appropriate for inter-well to regional-scale reservoir simulation. Results could improve reservoir management through proper infill and extension drilling strategies, reduction of economic risks, increased recovery from existing oil fields, and more reliable reserve calculations . Transfer of the project results to the petroleum industry is an integral component of the project. Four activities continued this quarter as part of the geological and petrophysical characterization of the fluvial-deltaic Ferron Sandstone in the Ivie Creek case-study area: (1) geostatistics, (2) field description of clinoform bounding surfaces, (3) reservoir modeling, and (4) technology transfer.
Date:
March 1, 1997
Creator:
Allison, M. Lee
Object Type:
Report
System:
The UNT Digital Library