Digital Commons Network^™

Enhancing Selective Decomposition Of Ibuprofen Onto Porous Tio₂ Nanoparticles, Abolfazl Zakersalehi

Civil Engineering Theses - Archive

Advanced oxidation technologies have gained tremendous attention for water treatment purposes after demonstration of insufficient efficiency of conventional systems for removal of many emerging chemicals of concern. Among AOTs, a TiO2-UV system is one of the most promising approaches due to its green properties and its effectiveness in generation of extremely oxidizing species such as hydroxyl radicals. However it has been demonstrated that non-selectivity of HRs in decomposition of organic compounds results in parallel decomposing of naturally abundant organic matter (NOM) along with toxic target contaminant, which significantly decreases the decomposition rate of target contaminants. Despite a great amount of …

Investigations To Develop Field Stabilization Methods To Mitigate Surficial Slope Failures, Minh Le

Civil Engineering Dissertations - Archive

Surficial slope failures induced by rainfall have been studied for many years. Current research supported by The United States Army Corps of Engineers (USACE) is undertaken at the University of Texas at Arlington on two sites, Joe Pool Dam and Grapevine Dam located in the Fort Worth district. The objective of the project is to find the best stabilization method to mitigate those failures. A testing area of 5 sections (one control and four treated) was established on each site with used admixtures of 20% compost, 4% lime with 0.30% polypropylene fibers, 8% lime with 0.15% polypropylene fibers, and 8% …

Hydraulic Performance Evaluation Of Different Recirculation Systems For Elr / Bioreactor Landfills, Shahed R. Manzur

Civil Engineering Dissertations - Archive

The major aspect of bioreactor landfill is the addition of liquid and recirculation of collected leachate back into the waste mass through the subsurface Leachate Recirculation System (LRS). The leachate recirculation system consists of the perforated recirculation pipes placed inside horizontal trenches and the permeable beds with different orientation. The application of high permeability material (shredded tire chips, broken glass, pea gravel) in landfills is an emerging technology to distribute the moisture over a wider area in a shorter period of time. Horizontal or vertical perforated pipes are installed in bioreactor landfills as LRS with an expectation of uniform moisture …

Large Diameter Steel Pipe Field Test Using Controlled Low Strength Material And Staged Construction Modeling Using 3-D Nonlinear Finite Element Analysis, Franciele Bellaver

Civil Engineering Theses - Archive

Using finite element methods and field tests, an extensive study on selected steel pipes is devised for the Integrated Pipeline Project in Dallas-Fort Worth, Texas. The project integrates Tarrant Regional Water District (TRWD) existing pipelines to the Dallas system along 150 miles. Field test of buried pipes, monitoring the pipe in different trench conditions is extremely valuable in predicting the displacement of the pipe during construction stages and during its lifetime. The field instrumentation monitors the circular displacements and strains of a buried steel pipe with an outside diameter (O.D.) of 84 in. and 0.375 in. thickness in three different …

Determination Of Safe Roadway Buffer Width To Protect Human Health From No2 Exposure: A Case Study For Grand Prairie, Tx, Hetal Bhatt, Melanie L. Sattler, Stephen P. Mattingly

Civil Engineering Faculty Publications - Archive

No abstract provided.

Sustainable Slope Stabilization Using Recycled Plastic Pin In Texas, Mohammad Sadik Khan

Civil Engineering Dissertations - Archive

Shallow slope failures are predominant in the North Texas area and pose significant maintenance problems for the Texas Department of Transportation (TxDOT). As a cost effective alternative, the Recycled Plastic Pin (RPP) can be utilized to stabilize the shallow slope failure. RPP are fabricated from recycled plastics and waste materials (i.e. polymers, sawdust, and fly ash). It is a lightweight material and less susceptible to chemical and biological degradation than alternative reinforcing element. RPPs are driven into the slope face, which provide additional resistance along the slip surface and increase the factor of safety. The current study summarized the remediation …

Global Optimization Of Nonconvex Piecewise Linear Regression Splines, Nadia Maria Martinez Cepeda

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Global optimization has been applied to a wide variety of science and engineering design problems. Although numerous global optimization techniques have been developed and studied for decades, when used for complex systems such as the design of an aircraft or an automobile, the results are impractical or not completely satisfactory. One of the main drawbacks is the computational CPU time required to solve these problems. The majority of design problems require a significant number of experiments or simulations in order to find a globally best solution; however a single simulation can take between seconds and days to finish. One way …

Parametric Cost Estimation Model For Microchannel Bonding Process Based On Activity Based Costing, Panita Suebvisai

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

The microchannel bonding process was developed to decrease product size and improve product performance. As the microchannel bonding process has moved from research to industrial manufacturing, it has become increasingly important to create a model to more accurately estimate the costs associated with this process. However, due to problems in project planning and limitations in funding, most microchannel bonding projects appear to have schedule slips and cost overruns. This dissertation presents a cost estimation model that links activity-based costing with parametric cost estimation. A parametric cost model has been designed to improve decision making in the microchannel bonding process, specifically …

Nano-Morphology Of Polymer Bulk Herojunctions Studied By Time-Resolved Synchrotron X-Ray Scattering, Soo Kim

Material Science and Engineering Dissertations - Archive

This study investigates the phase transformation of an active layer in organic photovoltaics (OPV) during film deposition and post thermal treatment as well as effects of phase transformation on OPV performance. For this purpose, small - and wide angle X-ray scattering technique (SAXS and WAXS) was applied to examine the phase separation mechanism at relevant fabrication condition of the highest OPV device performance. The poly(3-alkylthiophene)/[6,6]-phenyl-C61 butyric acid methylester (P3AT/PCBM) blend sample was employed in order to study phase transformation of the active layer systemically.Our exploration with SAXS and WAXS technique found that the polarity of the substrate, a solubility, and …

Fabrication And Characterization Of Barium Titanate Thin Film On Polycrystalline Nickel Substrate, Parisa Sahebi

Material Science and Engineering Theses - Archive

Ferroelectric BaTiO₃(BTO) thin films were deposited on polycrystalline nickel disks and silicon wafer substrates by rf magnetron sputtering. Nickel oxide (NiO) and nanocrystalline nickel (nc-Ni) layers were used as interfacial buffer layers. Microstructural studies with X-ray diffraction and transmission electron microscopy reveal that the BTO films deposited at temperatures lower than 700℃ have an amorphous structure. However, the BTO films sputtered at temperatures higher than 700℃ are partially crystalline. BTO films have a good and continuous interface with both interfacial layers with no interdiffusion or reaction with the substrates. In the case of BTO deposition with nc-Ni interlayer at higher …

Investigation Of Nanoparticle Delivery To Cancer Cells By Conjugation With Various Targeting Moieties, Leila Hossein Rashidi

Bioengineering Theses - Archive

Recently, mapping and profiling of specific tumor biomarkers characterizing cancer cells, followed by understanding of signal cascades involved in the pathogenesis of tumors (targeted therapy), as well as diagnosis in early stages, have become promising topics in cancer research. Since, the most considerable limitations of conventional therapies and diagnostic modalities are associated with nonspecific targeting; designing intelligent new anti-cancer nanocarries improved by targeting biomolecules could enhance therapeutic efficiencies as well as diagnosis in early stage of cancer. Active targeting which is based on the surface accessibility and the high level of expression of specific cancer antigens has attracted much attention …

Effect Of Body Mass Index On The Biomechanical Properties Of Anterior Vaginal Wall Tissue Of Prolapsed Patients, Sandra Gabriela Ochoa Lopez

Bioengineering Theses - Archive

Anterior Vaginal Wall (AVW) prolapse is a bothersome condition that affects thousands of women. Its onset and progression is not well understood but is thought to be multifactorial. Biomechanical properties of AVW tissue from prolapsed patients have been measured in-vitro using excised tissue specimens with great variability found in results, possibly from differences in tissue preparation, setting, preservation time, temperature, hydration, etc. In-vivo test using a BTC-2000TM cutometer-like device has recently been developed that measures the tissue uplift under suction pressure load. In this study, a systematical analysis of biomechanical property measurements from AVW tissues was done, including both in-vitro …

Measurement Of Transverse Relaxation Times Of Cerebral Metabolites In Brain Tumors, Akshay Madan

Bioengineering Theses - Archive

Proton (¹H) magnetic resonance spectroscopy (MRS) provides a non-invasive means of assessing metabolite concentration for a range of biologically important cerebral compounds in vivo. To extract quantitative information, additional data regarding proton spin relaxation phenomena is critical. Transverse relaxation times (T₂) of cellular metabolites depend on the local molecular environment in which they reside. Several neurological diseases alter the molecular environment, which may be reflected in the changes of the T₂ relaxation times. Therefore alterations in T₂ in tumors may provide important information about the local environment and a potential non-invasive diagnostic tool. Thirty-seven adult patients with gliomas and 11 …

Microfluidic Chip-Based Fabrication Of Hollow Alginate Microfiber For Enzyme Entrapment And Reaction, Uyen Hoang Thao Pham

Bioengineering Theses - Archive

This thesis demonstrates a simple process to generate alginate hollow microfibers by using a non-lithographic PDMS microfluidic device. The microfluidic device was fabricated by a novel template method in a wet lab without the support of any conventional lithography techniques. The relationships of the flow rate and the diameter of hollow alginate fibers were characterized. It was found that the outer diameter of the alginate hollow fiber was independent of the flow rate, but the core flow and sheath flow played an important role to control the internal diameter and the wall thickness of the alginate hollow microfiber. At a …

Design, Fabrication And Evaluation Of A Novel Microfluidic Based In Vitro Cell Migration Assay, Sai Sirisha Dhavala

Bioengineering Theses - Archive

Microfabrication and microfluidic devices have been recognized as potential platforms for cell-based and drug screening studies. Human glioblastoma multiforme (hGBM) cells migrate inside the central nervous system (CNS) in narrow space constrictions and rarely metastasize through bloodstream. Hence, microfluidic devices consisting of narrow channels are considered as suitable models to study cell migration in vitro. Further the migratory capability of each individual cell could be easily obtained and quantified using such system. This effort presents the design and development of an alternative microfluidic system that provides an integrated array of channels for screening multiple drugs simultaneously. This system is an …

Reliable Frontal Cortex Activity For An Oral Stroop Task Using Functional Near Infrared Spectroscopy, Matthew Allen Cloud

Bioengineering Theses - Archive

Analysis tools such as HomER and NIRS-SPM for functional Near-Infrared systems are commercially or freely available; however, they are difficult for clinicians to use as an assessment tool. One barrier to their use is the reliability of a given functional test. Intraclass correlation coefficients (ICC) provide a measure of group and individual reliability. NIRS-SPM was extended with ICC to assess a two part modified Stroop task. The protocol was repeated once every two weeks over a period of one month. Changes in neural activity attributed to inhibition of distraction, show significant covariance to the protocol with moderate to strong reliability …

Rights Come With Responsibilities: Personal Jurisdiction And Corporate Personhood, Roger Michalski

Faculty Articles

No abstract provided.

Reasoned Eclecticism In New Testament Textual Criticism, Michael W. Holmes

Biblical and Theological Studies Faculty Works

New Testament textual critics work with two categories of evidence, conventionally designated as “external” (provided by the manuscripts themselves, including relative age, geographic distribution, and relative weight of the witnesses) and as “internal” (dealing with scribal habits and practice, on the one hand, and authorial style and vocabulary, on the other). To do justice to both sorts of evidence, nearly all contemporary textual critics utilize a methodological approach generally known as “reasoned eclecticism.” In this approach, one fundamental guideline governs all other considerations: at any given point of variation, the variant most likely to represent the initial text is the …

Engaging Students In Critical Thinking Through Information Competency Assessment: A Single Group Repeated Measures Design / Lleuvelyn Areglado Cacha, Areglado Cacha Lleuvelyn

Student Works (2010-2019)

This study investigated the extent to which critical thinking could be promoted through question based framework via information competency assessment. The ability to evaluate information’s credibility using critical thinking is key indicator of information competency. The study set out to determine strategies how critical thinking transpired through infusion of information competency into content instructions to encourage critical thought processes and authentic learning. An assessment tool is required where students are empowered to challenge ideas, investigate complex information problems, and look for workable solutions integrating information technology capabilities. Prior to commencing the study, a range of online assessment tools used in …

Villa Degli Antonini: Excavation Season 2013 Summary, Deborah Chatr Aryamontri, Timothy Renner

Department of Classics and General Humanities Faculty Scholarship and Creative Works

No abstract provided.

Essence, Christina M. Lutz

Electronic Theses and Dissertations

No abstract provided.

Interaction Of The Geomagnetic Field With Northward Interplanetary Magnetic Field, Shree K. Bhattarai

Physics Dissertations - Archive

The interaction of the solar wind with Earth's magnetic field causes the transfer of momentum and energy from the solar wind to geospace. The study of this interaction is gaining significance as our society is becoming more and more space based, due to which, predicting space weather has become more important. The solar wind interacts with the geomagnetic field primarily via two processes: viscous interaction and the magnetic reconnection. Both of these interactions result in the generation of an electric field in Earth's ionosphere. The overall topology and dynamics of the magnetosphere, as well as the electric field imposed on …

Translation And Adaptation Of The Social Emotional Competence Development Scale, Sebastian Vaida, Craig R. Seal, Stefanie E. Naumann

Eberhardt School of Business Faculty Articles

This paper provides a cross-validation study of the Social Emotional Competence Inventory (SECD-I) from English to Romanian. The intent was to determine if the SECDI-I measure retained adequate internal validity after translation. Results suggest that the translated measure, called the Competenţe Socio Emoţionale scale, is a valid instrument for evaluating the social emotional competencies for young adults in a Romanian-speaking sample.

Coptic Scriptorium, Caroline T. Schroeder, Amir Zeldes

Department of Religious Studies Faculty Digital Projects

Coptic SCRIPTORIUM is a platform for interdisciplinary and computational research in texts in the Coptic language, particularly the Sahidic dialect. As an open-source, open-access initiative, our technologies and corpus facilitate a collaborative environment for digital research for all scholars working in Coptic. We provide:

• tools to process Coptic texts
• a searchable, richly-annotated corpus of texts using the ANNIS search and visualization architecture
• visualizations of Coptic texts
• a collaborative platform for scholars to use and contribute to the project research results generated from the tools and corpus

Coptic SCRIPTORIUM is a collaborative, digital project created by Caroline T. Schroeder (University of …

A Three-Dimensional Flow Model For Different Cross-Section High-Velocity Channels, Abdulla Abo

Other Faculty of Science and Engineering Theses

ABSTRACT High velocity channels are typically designed to discharge surplus water during severe flood events, and these types of flow are distinguished by high velocity, usually supercritical. A major challenge in high velocity channel design is to predict the free surface flow. Being able to predict the free surface flow profile beforehand can assist in selecting the best design for the channel as a whole. When the flow encounters a bridge pier, the streamline of the flow is separated and pressure may drop to a minimum; in contrast, velocity rises to its maximum value. As a result, cavitation damage may …

Snappily Ever After; Utah Food $Ense Online Education, K. Garvin, Heidi Leblanc

Nutrition, Dietetics, and Food Sciences Faculty Publications

No abstract provided.

Big Bites On A Little Budget, C. Preedy, M. Savoie, Heidi Leblanc

Nutrition, Dietetics, and Food Sciences Faculty Publications

No abstract provided.

Snap-Ed Improves Food Safety Practices Through Nutrition Education, D. Christofferson, K. Allen, J. Smith, Heidi Leblanc

Nutrition, Dietetics, and Food Sciences Faculty Publications

Snap-Ed nutrition education classes and food demonstrations allow for observation and modeling of correct food safety practices. Through the Utah State University’s Supplemental Nutrition Assistance Program-Education (SNAPEd), low-income participants completing four or more nutrition education lessons completed a retrospective post/pre behavior questionnaire. Results demonstrated increased intent to follow food safety practices by properly cooking, chilling, and separating food items, as well as properly cleaning food preparation surfaces.

Concept Drift Datasets, Patrick Lindstrom

Doctoral

This zip file contains the datasets used in the PhD thesis:

Lindstrom, P., 2013. Handling Concept Drift in the Context of Expensive Labels. Technological University Dublin. For more information about the datasets please see the README file and the aforementioned thesis.

Life History, C. W. Fox, Frank J. Messina

Biology Faculty Publications

No abstract provided.