Partner
Oklahoma Historical Society
174
UNT Libraries Government Documents Department
151
UNT Libraries
147
Sterling Municipal Library
56
Livingston Municipal Library
45
Archer Public Library
36
South Plains College
30
Swisher County Library
30
Nellie Pederson Civic Library
29
FM Buck Richards Library
24
56 More
Collection
Texas Digital Newspaper Program
598
Tocker Foundation Grant
353
Oklahoma Digital Newspaper Program
189
Office of Scientific & Technical Information Technical Reports
108
UNT Theses and Dissertations
78
The Baytown Sun
56
Polk County Newspapers
45
Chickasha Newspaper Collection
39
The Greensheet
38
Altus Times-Democrat
37
95 More
Degree Department
Department of Teacher Education and Administration
12
Department of Psychology
11
Department of Behavior Analysis
6
Department of Counseling, Development and Higher Education
6
Department of Biological Sciences
5
Department of Technology and Cognition
5
College of Music
4
Department of English
4
Department of Chemistry
2
Department of Computer Science and Engineering
2
20 More
Degree Discipline
Degree Level
Country
Decade
Month
Language
1,030 Matching Results
Results open in a new window/tab. Unexpected Results? Search the Catalog Instead.
Lagrangian continuum dynamics in ALEGRA.
Alegra is an ALE (Arbitrary Lagrangian-Eulerian) multi-material finite element code that emphasizes large deformations and strong shock physics. The Lagrangian continuum dynamics package in Alegra uses a Galerkin finite element spatial discretization and an explicit central-difference stepping method in time. The goal of this report is to describe in detail the characteristics of this algorithm, including the conservation and stability properties. The details provided should help both researchers and analysts understand the underlying theory and numerical implementation of the Alegra continuum hydrodynamics algorithm.
Date:
December 1, 2007
Creator:
Wong, Michael K. W. & Love, Edward
Object Type:
Report
System:
The UNT Digital Library
Borehole Summary Report for Core Hole C4998 – Waste Treatment Plant Seismic Boreholes Project
Seismic borehole C4998 was cored through the upper portion of the Columbia River Basalt Group and Ellensburg Formation to provide detailed lithologic information and intact rock samples that represent the geology at the Waste Treatment Plant. This report describes the drilling of borehole C4998 and documents the geologic data collected during the drilling of the cored portion of the borehole.
Date:
December 15, 2006
Creator:
Barnett, D. BRENT & Garcia, Benjamin J.
Object Type:
Report
System:
The UNT Digital Library
Feasibility analysis for installing a circulating fluidized bed boiler for cofiring multiple biofuels and other wastes with coal at Pennsylvania State University
None
Date:
December 21, 2000
Creator:
Miller, B.G.; Miller, S.F.; Jawdy, C.; Cooper, R.; Donovan, D. & Battista, J.J.
Object Type:
Report
System:
The UNT Digital Library
Tissue architecture and function: dynamic reciprocity via extra- and intra-cellular matrices
Mammary gland development, functional differentiation, and homeostasis are orchestrated and sustained by a balance of biochemical and biophysical cues from the organ's microenvironment. The three-dimensional microenvironment of the mammary gland, predominantly 'encoded' by a collaboration between the extracellular matrix (ECM), hormones, and growth factors, sends signals from ECM receptors through the cytoskeletal intracellular matrix to nuclear and chromatin structures resulting in gene expression; the ECM in turn is regulated and remodeled by signals from the nucleus. In this chapter, we discuss how coordinated ECM deposition and remodeling is necessary for mammary gland development, how the ECM provides structural and biochemical cues necessary for tissue-specific function, and the role of the cytoskeleton in mediating the extra - to intracellular dialogue occurring between the nucleus and the microenvironment. When operating normally, the cytoskeletal-mediated dynamic and reciprocal integration of tissue architecture and function directs mammary gland development, tissue polarity, and ultimately, tissue-specific gene expression. Cancer occurs when these dynamic interactions go awry for an extended time.
Date:
December 23, 2008
Creator:
Xu, Ren; Boudreau, Aaron & Bissell, Mina J
Object Type:
Article
System:
The UNT Digital Library
Investigating the potential for long-term permeable reactive barrier (PRB) monitoring from the electrical signatures associated with the reduction in reactive iron performance
The objective of this work was to conduct laboratory and field experiments to determine the sensitivity of low frequency electrical measurements (resistivity and induced polarization) to the processes of corrosion and precipitation that are believed to limit permeable reactive barrier (PRB) performance. The research was divided into four sets of experiments that were each written up and submitted to a peer-reviewed journal: [1] A laboratory experiment to define the controls of aqueous chemistry (electrolyte activity; pH; valence) and total zero valent iron (Fe0) available surface area on the electrical properties of Fe0 columns. [2] A laboratory experiment to determine the impact of corrosion and precipitation on the electrical response of synthetic Fe0 columns as a result of geochemical reactions with NaSO4 and NaCO3 electrolytes. [3] Laboratory experiments on a sequence of cores retrieved from the Kansas City PRB to determine the magnitude of electrical and geochemical changes within a field active PRB after eight years of operation [4] Field-scale cross borehole resistivity and induced polarization monitoring of the Kansas City PRB to evaluate the potential of electrical imaging as a technology for non-invasive, long-term monitoring of indicators of reduced PRB performance This report first summarizes the findings of the four …
Date:
December 14, 2005
Creator:
Slater, Lee D.; Korte, N. & Baker, J.
Object Type:
Report
System:
The UNT Digital Library
Characterization of Vadose Zone Sediment: Borehole 299-E33-46 Near Tank B-110 in the B-BX-BY Waste Management Area.
This report presents vadose sediment characterization data that improves understanding of the nature and extent of past releases in the B tank farm. A vertical borehole, located approximately 15 ft (5 m) from the northeast edge of single-shell tank 241-B-110 was drilled to a total depth of 264.4 ft bgs, the groundwater table was encountered at 255.8 ft bgs. During drilling, a total of 3 two-ft long, 4-inch diameter split-spoon core samples were collected between 10 and 254 ft bgs-an average of every 7.5 ft. Grab samples were collected between these core sample intervals to yield near continuous samples to a depth of 78.3 m (257 ft). Geologic logging occurred after each core segment was emptied into an open plastic container, followed by photographing and sub-sampling for physical and chemical characterization. In addition, 54 out of a total of 120 composite grab samples were opened, sub-sampled, logged, and photographed. Immediately following the geologic examination, the core and selected grab samples were sub-sampled for moisture content, gamma-emission radiocounting, tritium and strontium-90 determinations, total carbon and inorganic carbon content, and 8 M nitric acid extracts (which provide a measure of the total leachable sediment content of contaminants) and one-to-one sediment to water …
Date:
December 15, 2002
Creator:
Serne, R. Jeffrey; Bjornstad, Bruce N.; Gee, Glendon W.; Schaef, Herbert T.; Lanigan, David C.; Mccain, Richard G. et al.
Object Type:
Report
System:
The UNT Digital Library
Mica Shipwreck Project: Deepwater Archaeological Investigation of the 19th Century Shipwreck in the Gulf of Mexico
Archaeological study of the Mica Shipwreck site in the Gulf of Mexico, Mississippi Canyon. It includes historical background on the ship and navigation in the Gulf of Mexico, details about the project, analyses and conclusions, with supplementary appendices.
Date:
December 2006
Creator:
Atauz, A. D.; Bryant, W.; Jones, T. & Phaneuf, B.
Object Type:
Report
System:
The UNT Digital Library
Recovery of entrained CSSX solvent from caustic aqueous raffinate using coalescers.
A solvent was developed at Oak Ridge National laboratory (ORNL) for a caustic-side solvent extraction (CSSX) process that removes cesium from Savannah River Site (SRS) tank waste. After treatment, a small fraction of the solvent is entrained in the caustic raffinate at a level of 100-300 ppm, well above the solubilities for the various solvent components. Recovery of this solvent can produce a potential cost saving in excess of $5M per annum based on a processing rate of 20 gpm. In this study we examined the issues associated with the use of a coalescer for solvent recovery and measured the physical properties of the solvent and simulant. The density, surface, and interfacial tension, and viscosity of the optimized solvent and a full-component SRS waste simulant were determined as a function of temperature. The entrainment of the solvent components in the SRS waste simulant during the operation of a four-stage 4-cm contactor unit was quantified based on chemical and volumetric analysis. The chemical stabilities of several candidate commercial coalescing media in the caustic simulant were examined. Stainless steel media showed little degradation over a 30-day test; polymer media tended to be coated by the organic. A laboratory-scale coalescer was operated in …
Date:
December 13, 2002
Creator:
Pereira, C.; Arafat, H. A.; Falkenberg, J. R.; Regalbuto, M. C. & Vandegrift, G. F.
Object Type:
Report
System:
The UNT Digital Library
Material Property Estimation for Direct Detection of DNAPL using Integrated Ground-Penetrating Radar Velocity, Imaging and Attribute Analysis
The focus of this project is direct detection of DNAPLs, specifically chlorinated solvents, via material property estimation from multi-fold surface ground-penetrating radar (GPR) data. We combine state-of-the-art GPR processing methodology with quantitative attribute analysis and material property estimation to determine the location and extent of residual and/or pooled DNAPL in both the vadose and saturated zones. An important byproduct of our research is state-of-the-art imaging which allows us to pinpoint attribute anomalies, characterize stratigraphy, identify fracture zones, and locate buried objects.
Date:
December 31, 2004
Creator:
Bradford, John H.; Holbrook, W. Stephen & Smithson, Scott B.
Object Type:
Report
System:
The UNT Digital Library
Estimating Field-Scale Hydraulic Parameters of Heterogeneous Soils Using A Combination of Parameter Scaling and Inverse Methods
As the Hanford Site transitions into remediation of contaminated soil waste sites and tank farm closure, more information is needed about the transport of contaminants as they move through the vadose zone to the underlying water table. The hydraulic properties must be characterized for accurate simulation of flow and transport. This characterization includes the determination of soil texture types, their three-dimensional distribution, and the parameterization of each soil texture. This document describes a method to estimate the soil hydraulic parameter using the parameter scaling concept (Zhang et al. 2002) and inverse techniques. To this end, the Groundwater Protection Program Science and Technology Project funded vadose zone transport field studies, including analysis of the results to estimate field-scale hydraulic parameters for modeling. Parameter scaling is a new method to scale hydraulic parameters. The method relates the hydraulic-parameter values measured at different spatial scales for different soil textures. Parameter scaling factors relevant to a reference texture are determined using these local-scale parameter values, e.g., those measured in the lab using small soil cores. After parameter scaling is applied, the total number of unknown variables in hydraulic parameters is reduced by a factor equal to the number of soil textures. The field-scale values …
Date:
December 10, 2002
Creator:
Zhang, Z. F.; Ward, Andy L. & Gee, Glendon W.
Object Type:
Report
System:
The UNT Digital Library
Correlation of Chemisorption and Electronic Effects for Metal Oxide Interfaces: Transducing Principles for Temperature Programmed Gas Microsensors (Final Report)
This Final Report describes efforts and results for a 3-year DoE/OST-EMSP project centered at NIST. The multidisciplinary project investigated scientific and technical concepts critical for developing tunable, MEMS-based, gas and vapor microsensors that could be applied for monitoring the types of multiple analytes (and differing backgrounds) encountered at DoE waste sites. Micromachined ''microhotplate'' arrays were used as platforms for fabricating conductometric sensor prototypes, and as microscale research tools. Efficient microarray techniques were developed for locally depositing and then performance evaluating thin oxide films, in order to correlate gas sensing characteristics with properties including composition, microstructure, thickness and surface modification. This approach produced temperature-dependent databases on the sensitivities of sensing materials to varied analytes (in air) which enable application-specific tuning of microsensor arrays. Mechanistic studies on adsorb ate transient phenomena were conducted to better understand the ways in which rapid temperature programming schedules can be used to produce unique response signatures and increase information density in microsensor signals. Chemometric and neural network analyses were also employed in our studies for recognition and quantification of target analytes.
Date:
December 21, 2001
Creator:
Semancik, S.; Cavicchi, R. E.; DeVoe, D. L. & McAvoy, T. J.
Object Type:
Report
System:
The UNT Digital Library
A detailed kinetic modeling study of toluene oxidation in a premixed laminar flame
An improved chemical kinetic model for the toluene oxidation based on experimental data obtained in a premixed laminar low-pressure flame with vacuum ultraviolet (VUV) photoionization and molecular beam mass spectrometry (MBMS) techniques has been proposed. The present mechanism consists of 273 species up to chrysene and 1740 reactions. The rate constants of reactions of toluene, decomposition, reaction with oxygen, ipso-additions and metatheses with abstraction of phenylic H-atom are updated; new pathways of C{sub 4} + C{sub 2} species giving benzene and fulvene are added. Based on the experimental observations, combustion intermediates such as fulvenallene, naphtol, methylnaphthalene, acenaphthylene, 2-ethynylnaphthalene, phenanthrene, anthracene, 1-methylphenanthrene, pyrene and chrysene are involved in the present mechanism. The final toluene model leads to an overall satisfactory agreement between the experimentally observed and predicted mole fraction profiles for the major products and most combustion intermediates. The toluene depletion is governed by metathese giving benzyl radicals, ipso-addition forming benzene and metatheses leading to C{sub 6}H{sub 4}CH{sub 3} radicals. A sensitivity analysis indicates that the unimolecular decomposition via the cleavage of a C-H bond has a strong inhibiting effect, while decomposition via C-C bond breaking, ipso-addition of H-atom to toluene, decomposition of benzyl radicals and reactions related to C{sub 6}H{sub …
Date:
December 18, 2009
Creator:
Tian, Zhenyu; Pitz, William J.; Fournet, Rene; Glaude, Pierre-Alexander & Battin-Leclerc, Frederique
Object Type:
Article
System:
The UNT Digital Library
Discrimination Report: ESTCP UXO Discrimination Study, ESTCPProject #MM-0437
The FY06 Defense Appropriation contains funding for the 'Development of Advanced, Sophisticated, Discrimination Technologies for UXO Cleanup' in the Environmental Security Technology Certification Program. In 2003, the Defense Science Board observed: 'The problem is that instruments that can detect the buried UXOs also detect numerous scrap metal objects and other artifacts, which leads to an enormous amount of expensive digging. Typically 100 holes may be dug before a real UXO is unearthed! The Task Force assessment is that much of this wasteful digging can be eliminated by the use of more advanced technology instruments that exploit modern digital processing and advanced multi-mode sensors to achieve an improved level of discrimination of scrap from UXOs.' Significant progress has been made in discrimination technology. To date, testing of these approaches has been primarily limited to test sites with only limited application at live sites. Acceptance of discrimination technologies requires demonstration of system capabilities at real UXO sites under real world conditions. Any attempt to declare detected anomalies to be harmless and requiring no further investigation require demonstration to regulators of not only individual technologies, but of an entire decision making process. This discrimination study was be the first phase in what is …
Date:
December 21, 2007
Creator:
Gasperikova, Erika; Smith, J. Torquil; Morrison, H. Frank & Becker, Alex
Object Type:
Report
System:
The UNT Digital Library
Cell Cycle Related Differentiation of Bone Marrow Cells into Lung Cells
Green-fluorescent protein (GFP) labeled marrow cells transplanted into lethally irradiated mice can be detected in the lungs of transplanted mice and have been shown to express lung specific proteins while lacking the expression of hematopoietic markers. We have studied marrow cells induced to transit cell cycle by exposure to IL-3, IL-6, IL-11 and steel factor at different times of culture corresponding to different phases of cell cycle. We have found that marrow cells at the G1/S interface have a 3-fold increase in cells which assume a lung phenotype and that this increase is no longer seen in late S/G2. These cells have been characterized as GFP{sup +} CD45{sup -} and GFP{sup +} cytokeratin{sup +}. Thus marrow cells with the capacity to convert into cells with a lung phenotype after transplantation show a reversible increase with cytokine induced cell cycle transit. Previous studies have shown the phenotype of bone marrow stem cells fluctuates reversibly as these cells traverse cell cycle, leading to a continuum model of stem cell regulation. The present studies indicate that marrow stem cell production of nonhematopoietic cells also fluctuates on a continuum.
Date:
December 31, 2007
Creator:
Dooner, Mark; Aliotta, Jason M.; Pimental, Jeffrey; Dooner, Gerri J.; Abedi, Mehrdad; Colvin, Gerald et al.
Object Type:
Report
System:
The UNT Digital Library
A Non-parametric approach to measuring the K- pi+ amplitudes in D+ ---> K- K+ pi+ decay
Using a large sample of D{sup +} {yields} K{sup -}K{sup +}{pi}{sup +} decays collected by the FOCUS photoproduction experiment at Fermilab, we present the first non-parametric analysis of the K{sup -}{pi}{sup +} amplitudes in D{sup +} {yields} K{sup -}K{sup +}{pi}{sup +} decay. The technique is similar to the technique used for our non-parametric measurements of the D{sup +} {yields} {bar K}*{sup 0} e{sup +}{nu} form factors. Although these results are in rough agreement with those of E687, we observe a wider S-wave contribution for the {bar K}*{sub 0}{sup 0}(1430) contribution than the standard, PDG [1] Breit-Wigner parameterization. We have some weaker evidence for the existence of a new, D-wave component at low values of the K{sup -}{pi}{sup +} mass.
Date:
December 1, 2006
Creator:
Link, J. M.; Yager, P. M.; /UC, Davis; Anjos, J. C.; Bediaga, I.; Castromonte, C. et al.
Object Type:
Article
System:
The UNT Digital Library
Characterization of Vadose Zone Sediment: Borehole C3103 Located in the 216-B-7A Crib Near the B Tank Farm
This report summarizes data collected from samples in borehole C3103. Borehole C3103 was completed to further characterize the nature and extent of vadose zone contaminants supplied by intentional liquid discharges into the crib 216-B7A/7B between 1954 and 1967. These cribs received dilute waste streams from the bismuth phosphate fuel reprocessing program in the 1950's and decontamination waste in the 1960's. Elevated concentrations of several constituents were primarily measured at different depth intervals. The primary radionuclides present in this borehole are cesium-137 and uranium near the top of the borehole. Chemical characteristics attributed to wastewater-soil interaction at different locations within this zone are elevated pH, sodium, fluoride, carbonate nitrate, and sulphate
Date:
December 1, 2002
Creator:
Lindenmeier, Clark W.; Serne, R JEFFREY.; Bjornstad, Bruce N.; Last, George V.; Lanigan, David C.; Lindberg, Michael J. et al.
Object Type:
Report
System:
The UNT Digital Library
An Assessment of the Parent Orientation Program at the University of North Texas
Although most institutions offer a parent program option to the orientation program, there has been little formalized research into the quality, planning or programming of parent orientation. There has been very little research into the impact parent orientation has on parents and whether or not they feel that such programs have met their needs, particularly by gender, minority status, educational background, or by geographic distance from the institution. This study seeks to determine the effectiveness of the parent orientation program at the University of North Texas to the parents who participate in this program. The study attempts to measure whether parents feel that they have adequate information about the institution to adequately support their student through the college transition; if parents feel welcomed by the UNT campus community; and if they feel that they have developed resources and institutional contacts that may be useful in the future in assisting their child to have a successful college experience at UNT. The study, conducted in the summer of 2002, had 736 respondents. An instrument developed to determine parent's perceptions of the effectiveness of the parent orientation program consisted of 31 questions using a Likert scale. A t-Test was utilized to analyze the …
Date:
December 2002
Creator:
With, Elizabeth
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Measurement of the doubly Cabibbo suppressed decay D0 ---> K+ pi- and a search for charm mixing
The authors present an analysis of the decay D{sup 0} {yields} K{sup +}{pi}{sup -} based on FOCUS data. From a sample of 234 signal events, they find a branching ratio of {Lambda}(D{sup 0} {yields} K{sup +}{pi}{sup -})/{Lambda}(D{sup 0} {yields} K{sup -}{pi}{sup +}) = (0.429{sub -0.061}{sup +0-.063} {+-} 0.027)% under the assumptions of no mixing and no CP violation. Allowing for CP violation, the find a branching ratio of (0.435{sub -0.061}{sup +0.063} {+-} 0.028)% and a CP asymmetry of 0.178{sub -0.141}{sup +0.144} {+-} 0.041. The branching ratio for the case of mixing with no CP violation is (0.381{sub -0.163}{sup +0.167} {+-} 0.092)%. They also present limits on charm mixing.
Date:
December 1, 2004
Creator:
Link, J. M.; Yager, P. M.; /UC, Davis; Anjos, J. C.; Bediaga, I.; Gobel, C. et al.
Object Type:
Article
System:
The UNT Digital Library
LLE Review, Quarterly Report: Volume 83, April-June 2000
This volume of the LLE Review, covering April-June 2000, features an article by F. J. Marshall, T. Ohki, D. McInnis, Z. Ninkov, and J. Carbone, who detail the conversion of the OMEGA time-integrated x-ray diagnostics to electronic readout using direct-detection x-ray cameras [charge-injection devices (CID's)]. Pinhole and x-ray microscope images are shown along with inferred calibration measurements of the CID cameras. Currently, the same cameras are being used to obtain x-ray spectra in a TIM-based spectrometer, extending their use to all time-integrated imaging and spectroscopic x-ray instruments used on OMEGA. Additional highlights of the research presented in this issue are: (1) V. A. Smalyuk, B. Yaakobi, F. J. Marshall, and D. D. Meyerhofer investigate the spatial structure of the temperature and density of target-shell plasmas at peak compression (stagnation). This is accomplished by examining the energy dependence of the x-ray emission using narrow-band x-ray filters and the known absorption properties of the shell dopant (Ti). (2) F. Sequin, C. K. Ll, D. G. Hicks, J. A. Frenje, K. M. Green, R. D. Petrasso, J. M. Soures, V. Yu. Glebov, C. Stoeckl, P. B. Radha, D. D. Meyerhofer, S. Roberts, C. Sorce, T. C. Sangster, M. D. Cable, S. Padalino, and …
Date:
December 2000
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Perceptions of Faculty Development: A Study of a North Texas Community College
This dissertation study deems faculty development critical to meeting challenges associated with retirement, potential professor shortages, increasing adjunct populations, unprepared faculty, and accreditation standards in the community college. The study centers on seeking a current, in-depth understanding of faculty development at Metro Community College (a pseudonym). The participants in this qualitative study consisted of adjunct and full-time faculty members and administrators who communicated their perceptions of faculty development. The analysis discovered faculty member types (progressive and hobbyist adjunct and proactive, active, and reactive full-time faculty) who invest themselves in development differently depending on their position and inclination to participate. Faculty members generally indicated a desire for collegiality and collaboration, self-direction, and individualized approaches to development whereas administrators exhibited a greater interest in meeting accreditation standards and ensuring institutional recognition. The study also discovered a need to consider development initiatives for adjunct faculty members. The dissertation proposes an improved partnership between the adjunct and full-time faculty and the administration.
Date:
December 2008
Creator:
Bodily, Brett Hogan
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Hanford Site 1000-Year Cap Design Test
Surface barrier or capping technology is needed to isolate buried wastes. A successful cap must prevent the intrusion of plants, animals, and man into the underlying waste, minimize wind and water erosion, require minimal maintenance, and limit water intrusion to near-zero amounts. For some sites where wastes are long-lived, caps should potentially last a thousand years or more. At the U.S. Department of Energy (DOE) Hanford Site in Washington State, a surface cap with a 1000-year design life was constructed and then tested and monitored for performance under wetting conditions that are extreme for the region. The cap was built in 1994 over an existing waste site as a part of a Comprehensive Environmental Response, Compensation, and Liability Act (CERCLA) treatability test. The above-grade barrier or cap consists of a 2-m-thick silt-loam soil overlying layers (from top down) of sand, gravel, basalt rock (riprap), and a low-permeability asphalt. Two sideslope configurations, a clean-fill gravel on a 10:1 slope and a basalt riprap on a 2:1 slope were part of the overall design and testing. Design considerations included constructability; water-balance monitoring; wind and water erosion control and monitoring; surface revegetation, biointrusion control, subsidence, and sideslope stability; and durability of the asphalt …
Date:
December 27, 2002
Creator:
Gee, Glendon W. (BATTELLE (PACIFIC NW LAB)); Ward, Anderson L. (BATTELLE (PACIFIC NW LAB)) & Wittreich, Curtis D. (CH2M HILL HANFORD GROUP I)
Object Type:
Report
System:
The UNT Digital Library
Folklore: in All of Us, in All We Do
Compilation of articles about various topics related to folklore organized into five chapters by subject: "The first tackles this issue of folklore and its relationship to history, with some of the articles trying to provide some of that folkloric filler to historical facts. Another chapter focuses on women; one features various types of occupational lore; and another is a tongue-in-cheek look at 'shady characters' such as police officers, politicians, and horsetraders. A final chapter has no theme; it is a catch-all, containing a few interesting articles you may remember from some of our [Texas Folklore Society's] most recent meetings" (p. viii).
Date:
December 15, 2006
Creator:
Untiedt, Kenneth L.
Object Type:
Book
System:
The UNT Digital Library
A Semi-Analytical Solution for Steady Infiltration in Unsaturated Fractured Rock
A semi-analytical solution is developed for one-dimensional steady infiltration in unsaturated fractured rock. The differential form of the mass conservation equation is integrated to yield an analytical expression relating elevation to a function of capillary pressure and relative permeability of the fracture and rock matrix. Constitutive relationships for unsaturated flow in this analysis are taken from van Genuchten [1980] and Mualem [1976], but alternative relations can also be implemented in the integral solution. Expressions are presented for the liquid saturations and pore velocities in the fracture, matrix, and effective continuum materials as a function of capillary pressure and elevation. Results of the analytical solution are applied to examples of infiltration in fractured rock consisting of both homogeneous and composite (layered) domains. The analytical results are also compared to numerical simulations to demonstrate the use of the analytical solution as a benchmarking tool to address computational issues such as grid refinement.
Date:
December 19, 2000
Creator:
HO,CLIFFORD K.
Object Type:
Article
System:
The UNT Digital Library
The Effects of Multicultural College Courses on Intercultural Experiences and Attitudes.
This study examined college undergraduates' intercultural experiences and attitudes at the beginning and the end of a semester-long course on multicultural issues. Participants were 290 undergraduate college students at the University of North Texas , 202 of whom were enrolled in one of the university's core global studies, cross-cultural, or diversity courses for the fall 2001 semester, and 88 of whom were enrolled in courses outside the core. It was hypothesized that the multicultural group's Positive Inventory of the Consequences of Multicultural Experiences scores would increase and Social Dominance Orientation Scale scores would decrease more than they would for the control group. Findings did not support these hypotheses.
Date:
December 2004
Creator:
Soule, Amy
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library