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Simulink® Based Design and Implementation of a Solar Power Based Mobile Charger

Description: Electrical energy is used at approximately the rate of 15 Terawatts world-wide. Generating this much energy has become a primary concern for all nations. There are many ways of generating energy among which the most commonly used are non-renewable and will extinct much sooner than expected. Very active research is going on both to increase the use of renewable energy sources and to use the available energy with more efficiency. Among these sources, solar energy is being considered as the most a… more
Date: May 2016
Creator: Mukka, Manoj Kumar
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Innovative Cold-Formed Steel Shear Walls with Corrugated Steel Sheathing

Description: This thesis presents two major sections with the objective of introducing a new cold-formed steel (CFS) shear wall system with corrugated steel sheathings. The work shown herein includes the development of an optimal shear wall system as well as an optimal slit configuration for the CFS corrugated sheathings which result in a CFS shear wall with high ductility, high strength, high stiffness and overall high performance. The conclusion is based on the results of 36 full-scale shear wall tests pe… more
Date: May 2016
Creator: Mahdavian, Mahsa
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Impact of Grit on Performance After Mastery- or Performance-Oriented Feedback

Description: Grit and achievement motivation have been predictors of behavior in academia and military settings (Duckworth, Matthews, Peterson, & Kelly, 2007), but to date, research on their effects on sport performance has been limited. Given grit's predictive role in other performance domains, grit may be influential in athletes' long-term goal attainment, interacting with their achievement motives and leading to better performances. Athletes' trait levels of grit may influence how they understand and res… more
Date: May 2016
Creator: Auerbach, Alex
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Comment peut-on être Persane ou Peruvienne ?: On le devient

Description: Cette analyse littéraire examine les parallèles entre les deux romans Lettres persanes de Montesquieu (1721) et Lettres d'une Péruvienne de Françoise de Graffigny (1747) en se concentrant sur le sort des femmes et leur rébellion contre la claustration. Leurs révoltes transformatrices révèlent une volonté qui refuse et puis transcende les barreaux de leur captivité pour vivre librement. La philosophie de Simone de Beauvoir (1908-1986) personnifie leurs luttes pour devenir et exister, ce qui se … more
Date: May 2016
Creator: Daucourt, Monica Hazan
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Facilitating Positive Relationships between Patients and Foreign Born Providers in South Central Pennsylvania

Description: Foreign-born providers make up over a quarter of the physician workforce nationally. Patients in south central Pennsylvania are primarily white with limited interaction with foreigners which can produce barriers to communication and trust. This study proposes practical steps for building positive relationships between patients and their foreign-born providers. Ethnographic methods were used to interview and survey patients and providers about the relationships between foreign-born providers an… more
Date: May 2016
Creator: Long, Janel Elaine Lehman
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Social Anxiety and Non-Medical Prescription Stimulant Use Among College Students

Description: Current evidence suggests that non-medical prescription stimulant (NMPS) use is on the rise, particularly among college students. Identifying individuals at risk for regular and problematic use is a critical step towards the development of effective intervention efforts. A growing body of work has noted that individuals with elevated levels of social anxiety (SA) or social anxiety disorder are at an enhanced risk for developing substance use problems, including NMPS use disorder. Despite the re… more
Date: May 2016
Creator: Cloutier, Renee M.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Highly Stretchable Miniature Strain Sensor for Large Dynamic Strain Measurement

Description: This thesis aims to develop a new type of highly stretchable strain sensor to measure large deformation of a specimen subjected to dynamic loading. The sensor was based on the piezo-resistive response of carbon nanotube(CNT)/polydimethysiloxane (PDMS) composites thin films, some nickel particles were added into the sensor composite to improve the sensor performance. The piezo-resistive response of CNT composite gives high frequency response in strain measurement, while the ultra-soft PDMS matri… more
Date: May 2016
Creator: Yao, Shulong
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Investigating the Impact of Patient-Provider Communication on HIV Treatment Adherence

Description: Today over 1.1 million people are living with HIV/AIDS in the United States; over the last 4 decades mortality rates have decreased largely made in part because of advancement in awareness and treatment options. Treatment adherence has long been considered a vital component in decreasing HIV/AIDS related mortality and has proven to reduce the risk of transmission. However not all patients take their medicine as prescribed. This research study, sponsored by The North Central Texas HIV Planning C… more
Date: May 2016
Creator: Barnes, Shelly Marie
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

AirSniffer: A Smartphone-Based Sensor Module for Personal Micro-Climate Monitoring

Description: Environmental factors can have a significant impact on an individual's health and well-being, and a primary characteristic of environments is air quality. Air sensing equipment is available to the public, but it is often expensive,stationary, or unusable for persons without technical expertise. The goal of this project is to develop an inexpensive and portable sensor module for public use. The system is capable of measuring temperature in Celsius and Fahrenheit, heat index, relative humidity, a… more
Date: May 2016
Creator: Smith, Jeffrey Paul
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Miz Markley

Description: Lisa Markley, a.k.a. "Miz Markley", is a genuinely happy person even if she is not particularly financially successful as a musician. In an effort to validate my own choices as an artist, I chose to follow her. What was intended to be a portrait of a working musician, becomes instead a feminist musical essay film about the transformative power of art making.
Date: May 2016
Creator: Vance, Sharie
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Online Pornography and Its Effects on the Behavior of College Students

Description: The primary goal of this study was to investigate the habits of college students who use pornography. The study was designed to collect data on the use of online pornography by college students. Through the use of an online survey, the study collected general demographic data and data on the frequency with which students used online pornography. The study also collected data on the general attitudes of college students towards online pornography. Participants consisted of students enrolled at t… more
Date: May 2016
Creator: Hassell, Michelle S.
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Microstructural Phase Evolution In Laser Deposited Compositionally Graded Titanium Chromium Alloys

Description: A compositionally graded Ti-xCr (10≤x≤30 wt%) alloy has been fabricated using Laser Engineered Net Shaping (LENSTM) to study the microstructural phase evolution along a compositional gradient in both as-deposited and heat treated conditions (1000°C followed by furnace cooling or air cooling). The alloys were characterized by SEM BSE imaging, XRD, EBSD, TEM and micro-hardness measurements to determine processing-structure-property relations. For the as-deposited alloy, α-Ti, β-Ti, and TiCr2 (C15… more
Date: May 2016
Creator: Thomas, Jonova
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Landscape Legacies of Gas Drilling in North Texas

Description: In North Texas, the Barnett Shale underlies large areas of the Dallas-Fort Worth Metroplex (DFW), which magnifies debates about the externalities of shale gas development (SGD). Continued demand for natural gas and expansive urbanization in DFW will cause more people to come in contact with drilling rigs, gas transport, and other urban shale gas landscapes. Thousands of gas wells within the DFW region occupy a large, yet scattered land surface area. DFW city planners, elected officials, and oth… more
Date: May 2016
Creator: Sakinejad, Michael Cyrus
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Perceived Stress, Spirituality and Self-Esteem: Correlates of Quality of Life in a Lesbian, Gay and Bisexual Sample

Description: In the current study, we aimed to explore the relationship between perceived stress, spirituality and self-esteem and how they are related to psychological QOL. We found that our overall model accounted for 58% of the total variance in psychological QOL (adj. R2 = .58, F(10, 136) = 21.79, p < .001) with stress (β = -.37, p < .01) and self-esteem (β = .45, p < .01) as the significant predictors. Additionally we found that spiritual beliefs and practices moderate the relationship between stress … more
Date: May 2016
Creator: Stephen, Krystal Ann Amelia
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

An Empirical Study of How Novice Programmers Use the Web

Description: Students often use the web as a source of help for problems that they encounter on programming assignments.In this work, we seek to understand how students use the web to search for help on their assignments.We used a mixed methods approach with 344 students who complete a survey and 41 students who participate in a focus group meetings and helped in recording data about their search habits.The survey reveals data about student reported search habits while the focus group uses a web browser plu… more
Date: May 2016
Creator: Tula, Naveen
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

The Study of Temporal and Spatial Variability of Degree Day Factor of Snowmelt in Colorado

Description: Snowmelt is one of the major sources of surface water supply and ground-water recharge in high elevation areas and can also cause flooding in snow dominated watersheds. Direct estimation of daily snowmelt requires daily snow water equivalent (SWE) measurements that are not always available, especially in places without monitoring stations. There are two alternative approaches to modeling snowmelt without using direct measurements of SWE, temperature-based and energy-based models. Due to its sim… more
Date: May 2016
Creator: Pokhrel, Pranav
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Biodiversity and Genetic Structure of Benthic Macroinvertebrates Along an Altitudinal Gradient: A Comparison of the Windhond and Róbalo River Communities on Navarino Island, Chile

Description: Altitudinal gradients in Sub-Antarctic freshwater systems present unique opportunities to study the effect of distinct environmental gradients on benthic macroinvertebrate community composition and dispersal. This study investigates patterns in biodiversity, dispersal and population genetic structure of benthic macroinvertebrate fauna across an altitudinal gradient between two watersheds on Navarino Island in southern Chile. Patterns in diversity, density, evenness and functional feeding grou… more
Date: May 2016
Creator: Pulliam, Lauren
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Naturalistic Study of College Drinking

Description: The prevalence of Alcohol Use Disorders is rapidly increasing among college students. The use of real time monitoring in conjunction with contingency management procedures to reduce alcohol consumption has only recently been developed. Therefore, the purpose of this study was to learn more about natural patterns of alcohol consumption in college-aged adults. A second goal was to evaluate a novel, handheld technology for obtaining reliable samples over extended time periods. College students wer… more
Date: May 2016
Creator: Rueb, Skyler Nicole
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A Study of the Word "Good" Regarding Entry-Level Management Positions from Hospitality Recruiter and Hospitality Student Perspectives

Description: When asked to identify what characteristics are needed to fulfill an entry level management position in their companies, recruiters replied they were looking for someone “good”. When asked why they are enrolled in a 4 year hospitality program, a student may say to acquire a “good” job. The purpose of this study was to investigate the word “good” as it relates to hospitality industry recruiters in fulfilling an entry-level management position, as well as the hospitality management students persp… more
Date: May 2016
Creator: Wood, Stacey
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

A study of the impact of unconventional sources within a large urban area: evidence from spatio-temporal assessment of volatile organic compounds.

Description: Conventional sources of emissions have been a prime target for policymakers in designing pollution control strategies. However, the evolution of shale gas activities is a growing concern over the impact of unconventional sources on urban and regional air quality. Owing to the development of Barnett Shale production, the fast-growing Dallas-Fort Worth (DFW) metroplex has encountered both types of these emissions. Oil and gas activities result in emissions of ozone precursors, notably volatile or… more
Date: May 2016
Creator: Matin, Maleeha
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
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