Master's Recital: 2013-05-03 - Maggie Greenwood, clarinet

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Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 3, 2013
Creator: Greenwood, Maggie
Object Type: Sound
System: The UNT Digital Library
Addressing Social Elements of Wildfire: Risk, Response, and Recovery in Highland Village, TX (open access)

Addressing Social Elements of Wildfire: Risk, Response, and Recovery in Highland Village, TX

Representatives of the City of Highland Village expressed concern over the risk of wildfires for their community. Anthropology provides many tools for and examples of disaster assessment of preparedness, response, recovery, and mitigation. These tools combined with Geographic Information Systems (GIS) can provide a holistic, cultural ecological look at how such a disaster may take place in the city. The project's methods included a detailed survey of preparedness steps which was analyzed using SPSS and also imported into ArcGIS for spatial analysis, and semi-formal, in-depth interviews with residents of the community regarding preparedness, response, and recovery. Residents fell into a middle category of preparedness, with the majority of participants considering or implementing a few recommended preparedness steps. Interview participants expressed respect for and trust of the city and first-responders, as well as a willingness to volunteer their help during response and recovery stages. Finally the American Community Survey showed that resident socioeconomic vulnerability was considerably low, and no action needed to be taken to advocate for at-risk individuals. Overall, the City of Highland Village showed a high resiliency to disaster. A wildfire likely will not have a major impact on the community as a whole, though the city may reduce …
Date: May 2016
Creator: MacKinnon, Jessica
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Field Validation of Zero Energy Lab Water-to-Water Ground Coupled Heat Pump Model (open access)

Field Validation of Zero Energy Lab Water-to-Water Ground Coupled Heat Pump Model

Heat pumps are a vital part of each building for their role in keeping the space conditioned for the occupant. This study focuses on developing a model for the ground-source heat pump at the Zero Energy lab at the University of North Texas, and finding the minimum data required for generating the model. The literature includes many models with different approaches to determine the performance of the heat pump. Each method has its pros and cons. In this research the equation-fit method was used to generate a model based on the data collected from the field. Two experiments were conducted for the cooling mode: the first one at the beginning of the season and the second one at the peak of the season to cover all the operation conditions. The same procedure was followed for the heating mode. The models generated based on the collected data were validated against the experiment data. The error of the models was within ±10%. The study showed that the error could be reduced by 20% to 42% when using the field data to generate the model instead of the manufacturer’s catalog data. Also it was found that the minimum period to generate the cooling …
Date: May 2016
Creator: Abdulameer, Saif
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Master's Recital: 2013-05-24 - William Foss, horn

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 24, 2013
Creator: Foss, William
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2013-05-17 - Patrick Donohoe, bass trombone

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 17, 2013
Creator: Donohoe, Patrick
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2014-05-22 - Nan Qin, bass-baritone

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 22, 2014
Creator: Qin, Nan (Vocalist)
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2015-05-20 - Jieun Lee, piano

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 20, 2015
Creator: Lee, Jieun
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2014-05-19 - Joel Wiley, tenor

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Voertman Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 19, 2014
Creator: Wiley, Joel
Object Type: Sound
System: The UNT Digital Library
Hauntology Man (open access)

Hauntology Man

Hauntology Man, a 48-minute documentary, follows former UNT Professor, Dr. Shaun Treat, as he leads a walking ghost tour of downtown Denton, Texas. As the expedition moves from storefront to storefront, each stop elicits a new tale. But, as Dr. Treat points out, the uncertainties of history are the real ghosts. That is, rather than simply presenting a "haunted history" of Denton, it's more accurate to say this movie's center resides at the precipice of a "haunting history." Not all ghost stories need spectres. Sometimes not knowing is ghost enough.
Date: May 2018
Creator: Wright, Adam Michael
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Urban Trees as Sinks for Soot: Deposition of Atmospheric Elemental Carbon to Oak Canopies and Litterfall Flux to Soil (open access)

Urban Trees as Sinks for Soot: Deposition of Atmospheric Elemental Carbon to Oak Canopies and Litterfall Flux to Soil

Elemental carbon (EC), a product of incomplete combustion of fossil fuels and biomass, contributes to climate warming and poor air quality. In urban areas, diesel fuel trucks are the main source of EC emissions from mobile sources. After emission, EC is deposited to receptor surfaces via two main pathways: precipitation (wet deposition) and directly as particles (dry deposition). Urban trees may play an important role in removing EC from the atmosphere by intercepting and delivering it directly to the soil. The goal of this research was to quantify the magnitude of EC retention in leaf waxes (in-wax EC) and EC fluxes to the soil via leaf litterfall in the City of Denton, Texas. Denton is a rapidly growing urban location in the Dallas-Fort Worth metropolitan area. A foliar extraction technique was used to determine EC retention in leaf waxes. Foliar samples were collected monthly, from April through July, from pairs of Quercus stellata (post oak, n=10) and Quercus virginiana (live oak, n = 10) trees. Samples were rinsed with water and chloroform in a two-step process to determine EC retained in leaf waxes. A Sunset OC/EC aerosol analyzer was utilized to analyze the EC content of extracts filtered onto quartz-fiber …
Date: May 2018
Creator: Rindy, Jenna
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Estrategias Didácticas para la Enseñanza del Enfoque Léxico y las Nuevas Tecnologías de la Información y de la Comunicación (TIC) en la Clase de Español como Lengua Extranjera (ELE) (open access)

Estrategias Didácticas para la Enseñanza del Enfoque Léxico y las Nuevas Tecnologías de la Información y de la Comunicación (TIC) en la Clase de Español como Lengua Extranjera (ELE)

The purpose of this research was to use a lexical approach, and information and communication technologies (ICT) as strategies to facilitate learning to students of Spanish as a foreign language, to answer the research questions: (1) if the use of multiword lexical units improves the lexical competence and (2) whether the use of technology is an effective strategy to facilitate learning. A lesson plan with different activities was designed and put into practice with two groups of students (experimental and control) of the intermediate level of the University of North Texas (UNT). The collected data were analyzed using the quantitative paradigm with the variance model ANOVA with repeated measures, and the qualitative or interpretive paradigm to offer a broader perspective of the learning process of multiwords lexical units (collocations and idiomatic expressions). The results of this investigation answered the research questions and confirmed the effectiveness of the lexical approach and ICT in the teaching-learning process and facilitated the student's acquisition of L2.
Date: May 2018
Creator: Reed, Stella L
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Increasing Effective Thermal Resistance of Building Envelope's Insulation Using Polyurethane Foam Incorporated with Phase Change Material (open access)

Increasing Effective Thermal Resistance of Building Envelope's Insulation Using Polyurethane Foam Incorporated with Phase Change Material

Incorporating insulation material with phase change materials (PCMs) could help enhance the insulation capability for further building energy savings by reducing the HVAC loadings. During the phase change process between the solid and liquid states, heat is being absorbed or released by PCMs depending on the surrounding temperature. This research explores the benefits of a polyurethane (PU)-PCM composite insulation material through infiltrating paraffin wax as PCM into PU open cell foam. The new PU-PCM composite provides extra shielding from the exterior hot temperatures for buildings. Through this study, it was demonstrated that PU-PCM composite insulation could potentially help building energy savings through reducing the loads on the HVAC systems based on the building energy modeling using EnergyPlus. The Zero Energy Lab (ZØE) at the University of North Texas was modeled and studied in the EnergyPlus. It is a detached building with all wall facades exposed to the ambient. It was determined that the new PU-PCM insulation material could provide 14% total energy saving per year and reduce the electricity use due to cooling only by around 30%.
Date: May 2019
Creator: Houl, Yassine
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Student Perceptions of the University of North Texas Campus Police (open access)

Student Perceptions of the University of North Texas Campus Police

Numerous studies have been conducted to determine predictors of perceptions and attitudes toward police. Less effort has been spent on determining university and college students' perceptions of campus police departments. The purpose of this thesis was to fill this gap in the literature with an added emphasis on exploring potential differences in perceptions between students involved in Greek Life organizations and students not involved in Greek Life organizations. Prior literature found that Greek Life students engage in risk-taking behaviors at higher rates than their counterparts, so it was hypothesized that Greek Life students would have higher levels of distrust in the campus police due to their increased engagement in risk-taking behaviors. The survey questionnaire measuring trust and procedural justice/legitimacy perceptions of campus police was distributed through convenience sampling to university students. Descriptive statistics, bivariate analyses, and multivariate analyses were utilized to analyze the data. The results showed that students overall had positive perceptions of campus police, that Greek Life students had more negative perceptions of the campus police than non-Greek Life students, and that students with prior interactions with the campus police were more likely to perceive the police to be less procedurally just/legitimate. Race/ethnicity was not found to be …
Date: May 2018
Creator: Stidd, Megan D
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Performance Evaluation of UNT Apogee Stadium Wind Turbines (open access)

Performance Evaluation of UNT Apogee Stadium Wind Turbines

The following report chronicles the University of North Texas Wind Turbine Project at Apogee Stadium. The timeline of events will include the feasibility study conducted by and for the university, grant awards from the Texas State Energy Conservation Office to fund the project, and a three-year sample of real time performance data since installation. The purpose of this case study is to compare the energy generation estimates by various stakeholders to the measured energy generation using a new but uniform performance relationship. In order to optimize energy generation in wind turbine generator systems, the most common wind speeds measured at the site should also be the most efficient wind speeds at which the wind turbine can convert the kinetic energy in the wind into mechanical energy and ultimately electrical energy. The tool used to convey this relationship will be a figure plotting the wind speed profile against the efficiency curve of the wind turbine. Applying this relationship tool to the UNT Apogee Stadium wind turbines provided valuable results. The most common wind speeds at Apogee Stadium are not the most efficient wind speed for the turbine. Also, the most common wind speeds were near the lower limit of the wind …
Date: May 2016
Creator: McCary, William D., III
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Master's Recital: 2016-05-03 – Klaudia Cop, violin

Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 3, 2016
Creator: Cop, Klaudia
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2017-05-15 – Kimberly Watson, soprano

Recital presented at the UNT on the Square in partial fulfillment of the Master of Music (MM) degree.
Date: May 15, 2017
Creator: Watson, Kimberly
Object Type: Video
System: The UNT Digital Library
Population Dynamics and Community Structure of Mosquitoes (Diptera: Culicidae) Recorded in Denton, Texas from 2005 to 2015 (open access)

Population Dynamics and Community Structure of Mosquitoes (Diptera: Culicidae) Recorded in Denton, Texas from 2005 to 2015

A population survey was conducted on the mosquito species recorded in Denton, Texas for the years of 2005 to 2015. Data used in this project were obtained from an ongoing, long-term surveillance program led by the City of Denton and conducted through the University of North Texas. Research focused on the population dynamics and community structure of mosquitoes collected within urban areas of Denton, Texas in relation to certain environmental variables. A total of 80,837 female mosquitoes were captured and represented 38 species found under the following genera: Aedes, Anopheles, Coquillettidia, Culex, Culiseta, Mansonia, Orthopodomyia, Psorophora, Toxorhynchites, and Uranotaenia. Culex quinquefasciatus was the most abundant species followed by Aedes vexans. Seasonal patterns of the most abundant species revealed high variability throughout the study. Container breeders were most abundant in August and those that breed in floodwaters were most abundant in the months of May and September. Samples were tested for arbovirus presence through the Texas Department of State Health Services in Austin, Texas and multiple pools tested positive for West Nile virus throughout the study. Stepwise multiple regression and Spearman's rank correlation analyses were performed to examine the relationship between the mosquito community and environmental variables. Data revealed that temperature, …
Date: May 2018
Creator: Hambrick, Bethany Lynn
Object Type: Thesis or Dissertation
System: The UNT Digital Library
Structure, Composition, and Regeneration of Cross Timbers Forest Fragments in Different Land Use Contexts (open access)

Structure, Composition, and Regeneration of Cross Timbers Forest Fragments in Different Land Use Contexts

Throughout its current range, the Cross Timbers forest ecosystem is vulnerable to land-use change. In this study, we examined the surrounding land use matrix on the vegetation structure, composition and regeneration of six Cross Timbers forest fragments in Denton County, Texas (north of the Dallas-Fort Worth metroplex). Two fragments adjacent to agricultural land, two to residential neighborhoods, and two formally protected forest sites were selected. In summer 2015, five 100 m2 plots were randomly established in each fragment at least 200 meters from the edge. In each plot, all live and dead trees ≥ 3 cm diameter were identified and their height and diameter at breast height (DBH at 1.3 m aboveground) measured. Evidence of dumping (presence of trash) was recorded as an index of human frequentation. Differences in vegetation structure among the forest fragments were found. Most notably, fragments adjacent to agriculture contained 25% to 50% fewer trees per hectare than all other sites (Kruskal-Wallis, p < 0.02), especially trees <10 cm DBH. However, residential fragments had fewer trees that were ≥15 cm DBH compared to the other fragments, indicating that these are the youngest of the forest patches surveyed. Trash was observed in 60% of plots surveyed at …
Date: May 2015
Creator: Dunn, Ingrid
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Master's Recital: 2010-05-25 - Kyung Hyun Kim, piano

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 25, 2010
Creator: Kim, Kyung Hyun
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2010-05-25 - Sooyun Kim, piano

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 25, 2010
Creator: Kim, Sooyun (Pianist)
Object Type: Sound
System: The UNT Digital Library
"Don't Frack with Denton" (open access)

"Don't Frack with Denton"

Don't Frack With Denton chronicles the ground-breaking movement to ban hydraulic fracturing in the city of Denton, Texas by combining observational location shooting with extensive sit-down interviews and carefully negotiated subject-filmmaker relationships to create a safe and comfortable space for thoughtful reflection and criticism of a complex social movement who's activities span several years and many individuals. The result is a long-form documentary that is unapologetically in solidarity with this movement's goals while simultaneously maintaining enough editorial independence and critical distance to allow the activists themselves to honestly evaluate their decision-making, tactics and interpersonal relationships in ways that will provide insight and instruction to similar movements around the country and the world.
Date: May 2017
Creator: Graham, Garrett
Object Type: Thesis or Dissertation
System: The UNT Digital Library

Master Recital - 2015-05-01 - Jesús "Chucho" Insuasty, double bass

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 1, 2015
Creator: Insuasty, Jesús
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2015-05-18 - Alexis Barnett, cello

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 18, 2015
Creator: Barnett, Alexis
Object Type: Sound
System: The UNT Digital Library

Master's Recital: 2010-05-25 - Alejandro A. Tellez-Vargas, piano

Access: Use of this item is restricted to the UNT Community
Recital presented at the UNT College of Music Recital Hall in partial fulfillment of the Master of Music (MM) degree.
Date: May 25, 2010
Creator: Tellez-Vargas, Alejandro A.
Object Type: Sound
System: The UNT Digital Library