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Synthesis And Structural Analysis Of Macrocyclic Arenes: Experimental And Computational Insights, Saber Mirzaei

Master's Theses (2009 -)

Synthesis, properties and applications of macrocyclic molecules have been one ofthe interesting branches of organic chemistry during the past century. Several classes ofmacrocyclic molecules, based on their repeating unit and connectivity pattern, have beendiscovered. Macrocyclic arenes, cyclo[n]veratrylenes, calix[n]arenes and pillar[n]arenes,were among the most interesting and studied molecules. The major difference betweenthese molecules is the methylene-bridged connectivity pattern. In the present thesis, Iattempted to synthesize these molecules using novel approach which has been developedin our group and performing some structural analysis using experimental andcomputational techniques.The first synthesized and investigated molecule is the …

Electrocoagulation-Electrooxidation For Mitigating Trace Organic Compounds In Model Source Waters, Donald R. Ryan

Master's Theses (2009 -)

Conventional coagulation and oxidation are well suited for many drinking water operations to meet regulatory requirements for safe drinking water. However, these processes require auxiliary chemicals and materials that must be transported from off-site, which increases complexity of operations, and can pose difficulties for small treatment systems. Electrochemistry offers an innovative method to induce coagulation and oxidation processes for water treatment. Electrocoagulation (EC) together with electrooxidation (EO) is an attractive option for drinking water treatment systems because these processes generate iron coagulants using iron EC electrodes and oxidants (e.g., free chlorine and reactive oxygen species) using boron-doped diamond EO electrodes. …

Liquid Flowmeter Using Thermal Measurement; Design And Application, Woojae Chung

Master's Theses (2009 -)

This thesis presents flowmeter devices which can measure flowrate, pressure and temperature offlowing liquid samples using thermal measurement method. Typical thermal mass flowmeter usesthermal properties of materials to obtain flow features only for gases. We designed and fabricatedflowmeter devices with various functionalities such as: measuring properties of flowing liquid andidentifying the type of liquid samples.Thermal measurement methods using temperature sensor is a key of our flowmeter’s workingprinciple. The thermal mass flowmeter consists of a glass capillary, a tungsten wire heater, and aresistance temperature detector (RTD) sensor. The heater and sensors are integrated on …

Ergonomics Study Of A Helmet-Mounted Augmented Reality System For Coal Power Plant Workers, Ashley M. Toll

Master's Theses (2009 -)

Augmented reality (AR) is a technology that combines real and virtual information presented to the user in an interactive way in real time. The Microsoft HoloLens and RealWear HMT-1 are two common types of head-mounted AR available to industrial field workers. These two AR systems were tested on how they affected indicators of eye strain and forces of the neck and shoulder muscles for electric utility power plant operators while they performed five routine inspection tasks using coal burning equipment. The inspection tasks were conducted under three conditions: HoloLens, HMT-1, and absence of AR (normal). The duration of the inspection …

Computational Characterization Of The Cellular Origins Of Electroencephalography, Shane Hesprich

Master's Theses (2009 -)

Electroencephalography (EEG) is a non-invasive technique used to measure brain activity. Despite its near ubiquitous presence in neuroscience, very little research has gone into connecting the electrical potentials it measures on the scalp to the underlying network activity which generates those signals. This results in most EEG analyses being more macroscopically focused (e.g. coherence and correlation analyses). Despite the many uses of macroscopically focuses analyses, limiting research to only these analyses neglects the insights which can be gained from studying network and microcircuit architecture. The ability to study these things through non-invasive techniques like EEG depends upon the ability to …

Improved Reliability Of Stormwater Detention Basin Performance Through Water Quality Data-Informed Real-Time Control, Sazzad Sharior

Master's Theses (2009 -)

The objective of stormwater detention basins is to capture stormwater runoff to reduce and delay peak flow and to improve the water quality. These objectives can be improved upon by actively controlling the outflow of the basins rather than traditional passive outflow structures. There are studies demonstrating the performance of the active controls that respond in real-time to basin hydraulics, detention time, and rainfall forecasts. We hypothesize that the performance of these active controls can be improved upon by incorporating real-time water quality data streams into the control algorithm. Furthermore, we hypothesize that performance of these active controls also depends …

Impact Of Electrocoagulation Pretreatment On E. Coli Mitigation Using Electrooxidation, William Mcgregor Lynn

Master's Theses (2009 -)

Small drinking water systems serve approximately 20% of the US population, but they can struggle to comply with the Total Coliform Rule and the Disinfectant and Disinfection Byproduct Rule. Issues with insufficient funds to effectively treat the water and difficulties with the transportation of required chemicals can affect compliance. Electrochemical processes may offer an alternative approach for small water systems as they have demonstrated some advantages over traditional treatments, such as reduced handling and storage of chemicals and cost effectiveness. Sequential electrochemical processes have yet to be tested for the treatment of E. coli in drinking waters. In this study, …

Detecting Abnormal Social Robot Behavior Through Emotion Recognition, Subhash Rajapaksha Rajapaksha Pathiranage

Master's Theses (2009 -)

Sharing characteristics with both the Internet of Things and the Cyber Physical Systems categories, a new type of device has arrived to claim a third category and raise its very own privacy concerns. Social robots are in the market asking consumers to become part of their daily routine and interactions. Ranging in the level and method of communication with the users, all social robots are able to collect, share and analyze a great variety and large volume of personal data.In this thesis, we focus the community’s attention to this emerging area of interest for privacy and security research. We …

Profile Synthesis Of Prismatic-Prismatic Variable Joints For Use In Reconfigurable Mechanisms, Ryan Daniel Callahan

Master's Theses (2009 -)

Reconfigurable mechanisms provide increased flexibility in machine design and can be used in a variety of applications. Variable joints in reconfigurable mechanisms allow for machine designs that better optimize space and resources. This thesis uses a configuration space analysis to determine the motion profiles of Prismatic-Prismatic higher variable joints. Prismatic-Prismatic variable joints have never been analyzed or synthesized. In addition, no variable joints of any type have been considered with two-dimensional contact points. Variable joints enable the creation of Type II Mechanisms with Variable Topology, mechanisms whose topology changes due to changes in joint geometry. The goal of this synthesis …

Evaluation Of Accuracy Of Static Computer-Guided Implant Placement Compared With Partially-Guided Or Free-Hand Placement, Laxmi Sukhtankar

Master's Theses (2009 -)

Purpose: To evaluate precision and trueness of static computer-assisted implant surgery (sCAIS) in comparison with partially-guided and free-hand implant placement in vitro.Materials & Methods: The study was conducted on one hundred mandible replicas obtained from a cone beam computer tomography of a partially edentulous case for implant placement in mandibular right first molar site. First, the fully guided implant placement with different sleeve to bone distances (2mm = H2, 4mm = H4, 6mm= H6) was determined. Second, fully guided implant placement was compared with partially guided, and free implant placement. The achieved implant position was digitized and compared …

Effect Of Different Implant Abutment Materials On Optical Properties Of Translucent Monolithic Zirconia Crowns, Nisha Patel

Master's Theses (2009 -)

Purpose: The purpose of this study was to evaluate the effect of implant abutment color on the final shade of monolithic translucent zirconia crowns. The null hypothesis was that abutment color or brand of zirconia would have no effect on color of monolithic translucent zirconia crowns.Material and methods: A maxillary right central incisor implant (Nobel Replace Trilobe RP) in a dentoform model was used to mill customized abutments of titanium, gold-anodized titanium, pink-anodized titanium, and zirconium dioxide. An A2 dentin shade polymethyl methacrylate abutment was used as a control. Four types of zirconia systems (BruxZir Anterior; Glidewell Laboratories, LAVA …

Power Divider Miniaturization With A Variable Load, Amanda Jensen

Master's Theses (2009 -)

A 3 Tesla (127.72 MHz) Magnetic Resonance system is able to scan with both the body coil and surface coil at the same time due to a technology called simultaneous acquisition, which uses a 4-port power divider, typically a quad hybrid. This functions at 127.72 MHz. The goal is to replicate this function at 1.5 Tesla field strength (63.86 MHz), but to do so would require the power divider to double in size. This space is not available, so methods of miniaturizing the design were investigated. It was found that slow wave structures cannot shrink the quadrature hybrid design enough …

Effects Of A Postural Restoration Focused Intervention On Muscle Activation During Deadlifts, Caleb Richardson

Human Movement Studies & Special Education Theses & Dissertations

The purpose of this study was to determine the efficacy of implementing two Postural Restoration exercises and relating principles on deadlifts using a hexagonal barbell. Specifically, we aimed to examine the effects of the intervention on muscle activation and the location of the ground reaction force (GRF) center of pressure. Sixteen subjects (age 18-35 yrs.; male (n=14); female (n=2)), with at least 1 year of deadlifting experience, were randomly assigned into a control and intervention group (both n=8). Both groups performed two sets of three repetitions of deadlifts at 50% and at 80% of their estimated one repetition maximum (1-RM). …

An Exploration Of Professional Preparedness Of Instructional Designers To Evaluate, Philena V. Devaughn

STEMPS Theses & Dissertations

Formative, summative, and confirmative evaluation of instructional products determine whether learner objectives have been attained and substantiate the value of the instruction. The ability to implement an evaluation plan is classified as an essential skill for instructional designers by the International Board of Standards for Training and Performance Improvement (IBSTPI). Previous research has ascertained that entry-level instructional designers have failed to master the skills required to create evaluation plans.

The purpose of this qualitative study was to examine the professional preparation received by instructional designers, for instruction evaluation, through graduate level programs. The data collected for this study was the …

Interpreting The Other: Natives, Missionaries, And Colonial Authority In New England, 1643-1675, Violet Galante

History Theses & Dissertations

This thesis studies the rise, maintenance, and decline of New England praying towns from 1643-1675. Nestled between the Pequot War and Metacom’s War, the mid-seventeenth century was a period of relative peace between Indians and English settlers. Despite this supposed peace, violence continued between the two sides. The decades of peace were uneasy, and marked by increased tension over land and resources. Missionaries went to natives in Massachusetts and established towns aimed at converting large numbers of Indians. These towns would become a volleying point for local authorities, missionaries, and royal governors as natives, missionaries, settlers, and elites vied for …

Hyperborean Habits And Melting Ice: The Normalization Of Arctic Space And Resurgent National Identity, Ian Birdwell

Graduate Program in International Studies Theses & Dissertations

The Arctic Council has a robust history of fostering cooperation among its members on a host of environmental and scientific objectives. Yet, as the region has warmed the formerly inaccessible region has become ever easier to access, and Arctic politics are becoming of greater interest to the global community. In the midst significant change of this the network created by the Arctic Council continues to advance its cooperative agenda, though increasingly it seems to be experiencing setbacks due to the surges of nationalistic rhetoric on the part of its members. What best explains the transformation of national attitudes and how …

Customers’ Goal-Related Behavior In Loyalty Programs, Junzhou Zhang

Theses and Dissertations in Business Administration

Goal plays a vital role in the purposive behavior of consumers, and goal pursuit represents an important psychological mechanism under loyalty programs. The purpose of my dissertation is to understand loyalty program members’ goal pursuit behavior and uncover the underlying psychological mechanisms.

The first essay examined how success or failure to achieve a tier goal affects consumers’ subsequent goal pursuit behavior. Specifically, utilizing two lab experiments and 5,719 customers’ flight activities data from a major airline’s multi-tiered frequent flyer program, this essay studied the effect of goal completion magnitude on individuals’ effort toward achieving subsequent goals, and how goal type …

Usefulness Of An Expanded Health Belief Model With Added Constructs (Self-Efficacy And Ecological System Measures) In Modeling Compliance With Healthy Lifestyle Recommendations In Women With A Recent History Of Gestational Diabetes, Phyllis M. Woodson

Health Services Research Dissertations

Problem Statement: Gestational diabetes (GDM) has been reported to affect as many as 18% of all pregnancies in the U.S. This diagnosis is costly and presents health risks to both baby and mother. The main risk to the mother with a history of GDM is her increased risk for diabetes which has been estimated at 35% to 60% in the following 10 to 20 years; more recent studies report a 7 to 8 times occurrence in the following 3 to 6 years. It is recommended that lifestyle efforts of eating healthfully and exercise can reduce this risk

Methods: Subjects (n=153) …

The Messy Nuclear Landscape: Using Fuzzy Cognitive Mapping To Explore Plausible Nuclear Disarmament Scenarios, Ryan M. Nixon

Graduate Program in International Studies Theses & Dissertations

Nuclear weapons are seemingly permanent fixtures in international relations. Although nuclear abolitionists and actors within the Nonproliferation Treaty (NPT) and the International Atomic Energy Agency (IAEA) have taken significant steps towards designing a world without nuclear weapons, the longstanding realist logic that suggests nuclear disarmament is nonviable has born more fruit. On the other hand, some proponents of realism have suggested global nuclear disarmament is feasible, given that certain international instabilities are stabilized and that special care is taken during diplomatic negotiations. This presents an opportunity to test these predictions using fuzzy cognitive mapping, a computational modeling technique that identifies …

“Mixed Up In The Coal Camp”: Interethnic, Family, And Community Exchanges In Matewan During The West Virginia Mine Wars, 1900-1922, Lela Dawn Gourley

History Theses & Dissertations

The West Virginia Mine Wars are etched in the popular memory of West Virginians, who view these events as an important part of their identity as Mountaineers; yet, there is still much historians do not know about the Mine Wars, especially when concentrating on the perspectives and experiences of the working-class miners. These everyday miners and their families are the topic of this thesis. Using oral histories from the Matewan Development Center Records housed in the W.L. Eury Appalachian Collection at Appalachian State University in Boone, North Carolina, this thesis argues that community-building across ethnic and racial lines within Matewan’s …

Walking The Talk: Embedding Standards-Based Grading In An Educational Leadership Course, Matt Townsley

Faculty Publications

The purpose of this paper is to provide a model for educational leadership faculty who aspire to walk the talk of effective feedback by embedding standards-based grading (SBG) in their courses. Rather than focusing on learning, points are the currency of K-12 classrooms across the country. Over 100 years of grading research suggests typical grading practices are subjective at best. Some schools are responding by implementing SBG, yet few articles describe how higher education embeds this philosophy in educator preparation coursework. In this essay, the author documents how to design assessments, align rubrics, and provide feedback to aspiring school leaders …

Assessing High-Frequency Variability Of A Beach Adjacent To A Submarine Canyon (Moss Landing Beach, Monterey Bay, Ca), Tyler Barnes

Capstone Projects and Master's Theses

High frequency topographic surveying techniques were used to assess beach dynamics (shoreline change and volume differentials) at Moss Landing Beach (MLB), adjacent to a major tributary of the Monterey Submarine Canyon. Thirty-eight surveys were completed during two time periods, 2007-2001 and 2016-2017, to address short-term (seasonal) and long-term (decadal) changes in beach dynamics and evaluate fundamental beach processes. Large variations, both erosional and accretional, in beach dynamics characterized winters at MLB while summers relatively stable, suggesting an alternative perspective to the classic observation of winter beach erosion and summer beach accretion. An independent t-test revealed no significant difference between the …

Singapore's Consistent, Agile Support For Innovation And Ip In A Digital Age, Sam Sim, Vincent Ooi

Research Collection Yong Pung How School Of Law

Singapore has been agile in refining its support for companies investing in the acquisition, development, enhancement and exploitation of intellectual property rights, which is the key to innovation in the digitalised economy of the future.Sam Sim and Vincent Ooi outline the main tax measures announced in recent budgets.

Comparative Study Of Encapsulated Peppermint And Green Tea Essential Oils In Chitosan Nanoparticles: Encapsulation, Thermal Stability, In-Vitro Release, Antioxidant And Antibacterial Activities, Amro Shetta, James Kegere, Wael Mamdouh Sayed Ahmed

Faculty Journal Articles

Essential oils (EOs) such as Peppermint oil (PO) and Green Tea oil (GTO) have extensively been reported for their nutritional and biomedical properties. To overcome the sensitivity of EOs to the environmental conditions, nano-encapsulation has emerged as a method to address this limitation. In this work, PO and GTO were encapsulated in chitosan nanoparticles (CS NPs) following emulsification/ionic gelation method. The nano-encapsulated PO (CS/PO NPs) and GTO (CS/GTO NPs) were fully characterized by various methods. Spherical NPs with an average size range of 20–60 nm were revealed by TEM for both systems. The loading capacity reached 22.2% and 23.1%, for …

Celebrating The 72nd Anniversary Of Faculty Of Medicine, Chulalongkorn University, Sittisak Honsawek

Chulalongkorn Medical Journal

It is remarkable to be celebrating the 72nd anniversary of the Faculty of Medicine, Chulalongkorn University, which was established in 1947 in accordance with the royal principles of HM King Ananda Mahidol (RAMA VIII) to develop outstanding and selfless individuals to benefit all mankind. Together, this triad of excellence is known all over the world as the country’s most robust and progressive medical network. In addition, the royal wishes aspired to educate a sufficient number of medical doctors to provide better health care for Thai people and satisfy the public’s demands. The Faculty of Medicine was found in King Chulalongkorn …

Impact Of Self-Contact Lens Fitting With Uncorrected Refractive Error On Visual Acuity And Lens Movement In Contact Lens Wearers, Pussadee Paensuwan, Pavasut Leedasawat, Wanachat Chaiyasan, Darawan Pejchang

Chulalongkorn Medical Journal

Background: Contact lenses are increasingly popular for refractive error correction. An eye examination andcontact lens fitting for individual wearers are very important for best visual acuity and fitting accomplishment.Most Thai contact lens users buy their lenses from local shops and fitted the lens themselves withoutprofessional eye care services. This article reports on the impact of self-contact lens fitting on visual acuity andlens movement to establishes the requirement of contact lens access control.Objectives: To investigate the impact of self-contact lens fitting focusing on the uncorrected refractive error via visual acuity measurement and to determine the effect of lens base curve on …

Mri Of Cranial Nerve Enhancement: King Chulalongkorn Memorial Hospital (Kcmh) Case Series, Supak Chutiphaijit, Sasitorn Petcharunpaisan

Chulalongkorn Medical Journal

Abnormal enhancement of cranial nerves (CNs) can be observed in a variety of disease. We present eightcases of cranial nerve (CN) enhancement, including inflammatory process, hematologic malignancy, perineural spreading of extracranial tumor, cerebrospinal fluid seeding of high grade primary brain tumor, demyelination and post radiation change. Based on our case series, the findings cover board differential diagnoses. The use of contrast enhanced 3-dimensional (3D) T1-weighted image (T1WI) magnetic resonance imaging (MRI) and reasonable MRI sequences can increase conspicuity of the finding. Furthermore, incorporating underlying disease, clinical duration, and associated intracranial / extracranial findings may help narrow the probable etiologies.

Veteran Transition From Combat To Campus: A Mixed-Methods Study, Joanna R. Jones

Dissertations

The current research was carried out to investigate the overall satisfaction and benefits concerning student veteran programs at a public university located in southcentral Kentucky and the possible correlation of effectiveness within the supportive transitioning assistance programs for student veterans. The study included survey(s) distributions to administrators of veteran programs and student veterans.

The descriptive investigative study involved both aspects of quantitative and qualitative design, hence categorizing the study as mixed-methods. Descriptive research design is considered a scientific method which involves observing and/or describing behavior regarding the subject without influencing it in any way. Surveys were used during this study …

The Reluctant Plaintiff, Mary Welek Atwell

Ann B. Hopkins Papers

No abstract provided.

Regularized Fourier Ptychographic Microscopy, Shiqi Xu

McKelvey School of Engineering Graduate Student Theses & Dissertations

Quantitative phase image (QPI) is a popular microscopy technique for studying cell morphology. Recently, Fourier ptychographic microscopy (FPM) has emerged as a low-cost computational microscopy technique for forming high-resolution wide-field QPI images by taking multiple images from different illumination angles. However, the applicability of FPM to dynamic imaging is limited by its high data requirement. In this thesis, we propose new methods for highly compressive FPM imaging using a data-adaptive sparse coding and an online plug-and-play (PnP) method with non-local priors based on the fast iterative shrinkage/threshold algorithm (FISTA). We validate the proposed method on both simulated and experimental data …