Digital Commons Network^™

Electrostatic Nanosmearing Architecture Of Additive Functional Groups During High Shear Mixing Of Pharmaceutical Blends, Sajan Kumar Chatarla

Masters Theses

The main objective of the research project is to detect and quantify the rate and extent of nanosmearing of hydrophobic functional groups of additives on multiple pharmaceutical particles during high shear mixing of formulations due to electrostatics affecting critical blend properties on the bulk scale. We accomplished this task by systematically detecting the electrostatics during powder flow and its consequence on the nanosmearing distribution of additives during mixing. In the first stage, the electrostatic behavior of particles was correlated to the powder flow. Secondly, its relative influence on nanosmearing of additives during mixing was determined by developing a methodology to …

Modeling, Optimizing And Testing Thermoelectric Generators For Liquid-To-Liquid Low Grade Waste Heat Recovery, Ali Eyddan Hamil

Masters Theses

The use of thermoelectric generators (TEGs) for producing electricity from low grade waste heat is thought to be a great solution in the future to reduce the power generation cost because of their advantages of reliability and environmental friendliness. Therefore, the current project aims to study thermoelectric generators for low grade waste heat recovery. In this work, a single unit cell of liquid to liquid thermoelectric generator attached with heat exchangers (heat sinks) is modeled using an internal flow. Its optimum design is obtained based on heat sink optimization and the optimal design method. An analytical model of four unit …

Improved Methodology For Developing Non-Motorized Safety Perfomance Functions, Keneth Morgan Kwayu

Masters Theses

This study aimed at improving the methodology for developing statewide non-motorized safety performance functions (SPFs). Due to lack of pedestrian and bicyclist counts, the methodology proposed a procedure for developing statewide surrogate non-motorized exposure measures using data that are available at statewide level. Eleven years non-motorized crashes at signalized urban intersections joining Arterial and Collector roads in Michigan were used to test the procedure.

The study also explored the use of Bayesian approach for modeling non-motorized crashes as an alternative to traditional classical count data models. Classical count data models that were considered as potential fit to the data include; …

The Perceptions Of Music Therapy Interns And Internship Supervisors: American Music Therapy Association Professional Competencies, Jordan Rebecca Novak

Masters Theses

The purpose of this study was to investigate perceptual differences of the AMTA Professional Competencies between music therapy pre-interns and internship supervisors in the Great Lakes Region. The participants (N = 33) were 19 pre-interns and 14 internship supervisors at AMTA Approved internship sites and academic programs. This 32 question survey study utilized a Likert-type 5-point scale that required the participant to rate their perceived need for assistance from little to no need for assistance to very high need for assistance. Results showed that pre-interns and supervisors differ significantly on the subjects of “Leading and accompanying on guitar and piano” …

Physiology And Genetics Shape The Microbiome Of A Seabird Species (Oceanodroma Leucorhoa) More Than Environmental And Social Factors, Douglas Steven Pearce

Masters Theses

The microbiome provides multiple benefits to animal hosts that can profoundly impact health and behavior. Microbiomes are well-characterized in humans and animals in controlled settings, yet assessments of wild bird microbial communities remain vastly understudied. This study examines the multiple factors that affect the microbiome of a burrow-nesting Procellariiform bird species, Leach’s storm-petrel. 16S rRNA-based Illumina Mi-Seq analyses are used to assess the composition and structure of bird and burrow-associated bacterial communities. Results indicate that sex and skin site contribute to bird-associated bacterial community variation, and MHC heterozygosity impacts these bacterial assemblages in a sex and site-specific manner, potentially having …

An Equivalent Plate Model With Orthotropic Material Properties For Adjacent Box-Beam Bridge Superstructure, Timothy Alexander Schnell

Masters Theses

Reflective cracking over the longitudinal joints of adjacent box-beam bridges is a welldocumented and recurrent problem; it is a concern because it leads to poor durability performance. These cracks develop during early stages of bridge construction and have not been eliminate by the design revisions implemented so far.

This study is aimed at developing a rational load demand analysis model for calculating the moment acting at the longitudinal joints in order to determine the impact of post-tensioning on mitigating reflective cracking.

The scope of the study includes calculating moment demand at the shear keys using a rational analysis model based …

Experimental Characterization And Simulation Of Carbon Nanotube Strain Sensing Films, Nagendra Krishna Chaitanya Tummalapalli

Masters Theses

Carbon Nanotubes (CNTs) have excellent mechanical, electrical and electromechanical properties. These properties led to a lot of novel applications. Due to change in electrical properties under mechanical loading, these composites have potential applications in strain sensors, when these are fabricated as films. CNT-based films are commonly fabricated using different physical and chemical techniques based on the property requirements governing those applications. In this work, CNT films were prepared using wet chemical based methods and chemical vapor deposition techniques.

Plasma chemical vapor deposition using microwave power is used in the first method to deposit films on silicon substrates, using Nickel film …

Analytical Study Of Miniature Thermoelectric Device, Mohammed Dhannoon

Masters Theses

Miniature thermoelectric devices (TE) have been regarded as hopeful devices to attain efficient cooling in microprocessors and other small-scale devices. To recognize the performances of miniature thermoelectric coolers, a thermoelectric cooling module is theoretically analyzed. Particular attention is paid to the impact of the thermoelectric element length effect and the substrate material type influence on the cooling performance. The electrical contact resistance and thermal contact are taken into account.

Furthermore, miniature thermoelectric is compared with large thermoelectric, and effective material properties of miniature thermoelectric are studied. The obtained results also demonstrate power density (cooling/heating power per unit area of the …

Safety Benefit Analysis Of Alternative Delineation Practices In Michigan, Brenda C. Burdick

Masters Theses

Among the many aspects of roadway design, one important system is roadway delineation. The main purposes of roadway delineation include regulating, warning, and guiding drivers in a safe manner. Delineation systems have the potential to reduce crashes. This research sought to perform safety benefit analysis of roadway delineation practices in Michigan. Through literature review, several delineation practices, selection criteria, and previously developed crash modification factors were researched. Even though several pavement marking materials have been implemented in Michigan, a safety benefit analysis of various materials had not been performed. Sites were selected, and pavement marking material inventory data were combined …

The Application Of Chitosan On An Experimental Infection Of Pseudogymnoascus Destructans Increases Survival In Little Brown Bats, Torin C. Kulhanek

Masters Theses

This research builds upon a previous study conducted that tested the efficacy of chitosan on experimentally-infected bats as a laboratory model of White-nose syndrome. White-nose syndrome is a fungal infection caused by Pseudogymnoascus destructans, formerly known as Geomyces destructans. The pathology of this disease is not yet fully understood, but it is devastating bats throughout Northeastern America and continues to spread. Here we tested multiple application time points and concentrations of chitosan on the wings of experimentally-infected bats and compared them with the controls. We grossly viewed the wings first to get a sense of the amount of …

Development Of An Analytical Model For Beams With Two Dimples In Opposing Directions, Mofareh H. Ghazwani

Masters Theses

Structures such as beams and steel plates can produce potentially high levels of unwanted vibrations and noises in the environment. A method of improving the vibration and acoustic characteristics of beams based on introducing dimples on its surfaces will be presented in this study. This method focuses on creating two dimples in the same and opposite direction on beam’s surface where the effect of dimples on the change in beam’s natural frequencies is the problems of interest.

A boundary value model (BVM) is developed for a beam with two dimples and subjected to various boundary conditions using Hamilton’s Variational Principle. …

Optimal Design Of Automotive Exhaust Thermoelectric Generator (Aeteg), Hassan Fagehi

Masters Theses

A consumption of energy continues to increase at an exponential rate, especially in terms of automotive spark ignitions vehicles. About 40% of the applied fuel into a vehicle is lost as waste exhaust to the environment. The desire for improved fuel efficiency by recovering the exhaust waste heat in automobiles has become an important subject. The thermoelectric generator (TEG) has the potential to convert exhaust waste heat into electricity as long as it is improving fuel economy. The remarkable amount of research being conducted on TEGs indicates that this technology will have a bright future in terms of power generation. …

The Impact Of A Student Device Technology Integration Professional Development Program On K-6 Performance Data, Peter Grostic

Masters Theses

When schools choose to secure devices for their students to integrate into class, they are engaging in a student device technology integration initiative. Results of such initiatives so far have been inconsistent (Bebell & Kay, 2010, Gulek & Demirtas, 2005). These inconsistencies may be, in part, due to poor professional development and/or incomplete data collection. The purpose of this study is to examine the impact of a professional development program for teachers on the effectiveness of a student device technology integration initiative. “Effectiveness” will be defined by standardized test data as well as student attendance data and student behavior referral …

Analytical Modeling And Numerical Simulation Of A Thermoelectric Generator Including Contact Resistances, Shripad Dhoopagunta

Masters Theses

With increasing demand for energy harvesting systems, research has been conducted in different areas in which Thermoelectric Generators (TEG) find their way into the top of many available resources. Out of many energy harvesting systems available, TEGs are comparatively easier to study, to manufacture and also to comprehend while producing enough energy for applications they find use in. They are solid state devices, meaning; they do not have any moving parts and hence makes them durable. Most of the energy that goes out of the automobile as exhaust is reused to power the TEGs. In most of the works that’s …

A General Code To Represent The Mathematical Life Cycle Cost Model Of Bridge, Bajel Mohammed Alshadeedi

Masters Theses

There are many factors that play a role in the overall cost of any bridge. The life cycle cost needs deep knowledge of bridge components to calculate its subcategories costs. The bridge life cycle cost is divided into; agency, user cost, and society costs. The agency cost includes the expected value of the final bridge construction cost, the inspection cost, better value of repainting cost, and replacing asphaltic deck cost. The user cost includes traffic delay cost and vehicle operation cost under different traffic conditions, accident cost, and failure cost. The society cost includes aesthetical and environmental impact. All costs …

Measurement Of Activity And Stability Of Physical Vapor Deposition (Pvd) Coated Crystal Surfaces, Anuradha Krishnan

Masters Theses

The overall objective of this research work is to investigate the hydrophilic and hydrophobic forces acting on organic crystal planes and understanding the interaction of functional groups with additive molecular nanolayers. Crystals of acetaminophen and lactose were made and the surface forces were tested on Atomic Force Microscope (AFM). Uniformity of crystal surface was confirmed from the AFM study in the first stage. The growth factors of crystal planes as a function of time were studied. Adhesion forces on plain crystals were measured on both two different organic crystals made of acetaminophen and lactose. In the second stage, …

Nightmare In The City Of Dreams: Civic Consciousness And Industrialization In Imperial Vienna, 1848-1881, J. Alexander Killion

Masters Theses

Since the onset of the Industrial Revolution, a distinct trend toward urbanization has continually reshaped history and society, yet the development and evolution of urban spaces has been largely overlooked by scholars until recent decades. This is especially true for the cities of the Habsburg Empire, although Vienna provides a good case study of industrialization’s impact on the urban landscape due to its history of rapid population growth, extensive environmental change, and established administrative structures. Although the logistical challenges associated with urban administration, such as importing adequate food, accessing clean water, and disposing of waste in a prompt manner were …

Optimization Methodology For Cvt Ratio Scheduling With Consideration Of Both Engine And Cvt Efficiency, Steven Beuerle

Masters Theses

A transmission ratio schedule is developed to optimize the fuel consumption for an automotive continuously variable transmission (CVT) connected to an internal combustion engine (ICE). Although the optimal operating line (OOL) generated from an engine brake specific fuel consumption (BSFC) map can be used to generate a CVT ratio schedule that yields maximum engine efficiency, it was found that OOL-based CVT ratio scheduling does not necessarily offer the best fuel economy because optimal CVT efficiency does not always correspond to OOL tracking. To develop a CVT ratio schedule that can offer the best fuel economy, a novel ratio-scheduling methodology is …

Current Perceptions Of Music Therapists On The Benefits And Liabilities Of State Licensure, Dianne Sawyer

Masters Theses

This qualitative study investigated a state task force perceptions of music therapists who served on the task force to become licensed. Participants included six licensed music therapists, all of which were female. Through Naturalistic Inquiry, participants provided information about the perceived benefits and liabilities for music therapists, accessibility to clients, funding sources, and other healthcare professionals causing harm. Collected data was analyzed to determine common themes, perceived benefits and drawbacks of licensure, and the push for more regulations based on music therapists’: years of experience, level of education and advanced trainings. The overall perception from the licensed music therapists, is …

Impact Of A Positive Behavior Support System On Staff Behavior At The Boys And Girls Club, Brian Molina

Masters Theses

The present study sought to increase correct staff utilization of a positive behavior support system at the Boys and Girls Clubs of Greater Kalamazoo. The intervention consisted of implementing a new club-wide positive behavior support program. The main components of the positive behavior support program were (a) training for staff on how to use the positive behavior support system, (b) staff teaching of the positive behavior support system to members, (c) the implementation of a token economy system for reinforcing positive behavior, and (d) a data collection/feedback system to inform supervisors on the progress of members and staff.

This study …

‘How Yoga Are You?’: Exploring The Contemporary Practice Of Yoga In The United States, Olivia Mclaughlin

Masters Theses

In 2015, to the United States, 21 million Americans claimed to be regular practitioners of yoga. Yoga has long been studied by psychologists, therapists, and medical scientists for its ability to affect positive change in people’s lives, particularly in regards to mental and emotional health and well-being. Within the field of sociology, yoga has gained an increasing amount of attention for its ability to help treat chronic eating disorders among women, becoming extremely popular within the subfields of sociology of the body and gender. Additionally, the cultural impact of the transmission of yoga has fascinated social scientists interested in studying …

Design, Modeling And Simulation Of A Thermoelectric Cooling System (Tec), Pooja Iyer Mani

Masters Theses

Thermoelectric Devices are solid state devices which directly convert thermal energy to electrical energy and vice versa. In the recent past, a lot of effort has been made to improve the performance and also the power generated by a thermoelectric device. This is done by attaching heat sinks on either sides of the device. Optimizing heat sinks improves the overall efficiency of it but on the other hand the device also has to be optimized. TECs are mostly used for electronic cooling where the heated electronic devices serve as target that needs to be cooled while air acts as a …

Networking And Connecting Creative Minds: Understanding Social Media’S Role In Today’S Visual Arts Instruction, Tonya Rose Kirby

Masters Theses

This study explores the use of social media in K-12 visual arts programs, focusing on why and how art educators choose to implement social media in their instructional practice. This study discusses benefits and disadvantages of social media as a pedagogical and creative tool in art education through analysis of the survey responses of 50 in-service teachers. Finally, specific social media platforms are recommended, with in-class examples provided for art teachers interested in using social media in their program.

The Use Of Personality Type To Improve Team Collaboration Within Design Studios, Beth Rolston Jarl

Masters Theses

This study surveyed third year interior design students on satisfaction levels after participating in a 7-week team project where the Myers-Briggs Type Indicator® (MBTI®) personality assessment was used to help inform team formation. The literature review explored all aspects of team collaboration, the difference between group work, team work and collaborative work, common barriers found in team work, team development processes, successful team building strategies, and the design studio collaborative project in regards to student perceptions of learning. The portion of this study explored and measured in-depth is how students perceived their collaborative team experience using the MBTI to inform …

Effect Of Listening To Music During Warmup On Wingate Anaerobic Test Performance, Russell P. Fox

Masters Theses

The primary purpose of this study was to determine whether or not different music conditions would affect performance on the Wingate anaerobic test. We also sought to explore the effect of music on psychological variables such as, rating of perceived exertion (RPE).

16 subject (8 males, 8 females) listened to either pre-selected music, self-selected music or white noise during a 10-minute warmup, cycling at 50 Rev.min-1 for 10 minutes with a light resistance of one kilogram. Once the warmup was completed they performed a Wingate Anaerobic test against a resistance of 7.5% of their body mass in kilograms.

There were …

Preliminary Study Of Optical-Flow Based Background-Oriented Schlieren Measurements, Hassan A. Ghazwani

Masters Theses

This research describes an experimental study on the density gradient by applying the Background Oriented Schlieren technique with the physics-based optical flow using a simple setup. The design of the BOS setup primarily consists of a background which has random dots, and a high-speed camera focused on the dots. Variation of the density between the undisturbed image and the disturbed image led to a shift of the dots, which is used to generate displacement field by using the optical flow method. In addition: different pressure conditions were applied, to provide distinct displacement fields. Finally, the density gradient of flow was …

The Effects Of Individual And Social Comparison Graphic Feedback On Incented Performance, Yngvi Freyr Einarsson

Masters Theses

This study examined whether graphic displays of individual performance and graphic displays of the individual performance of each group member would increase performance when individuals were paid monetary incentives. All participants were paid piece-rate pay and there were three conditions: (a) no feedback, (b) graphic display of individual performance, and (c) graphic display of the performance of each group member. Participants were 80 undergraduate students who performed a computerized data entry task. The main dependent variable was the number of correctly completed entries. A monotone ANCOVA was used to detect performance differences, using data from the first session as a …

The Oncolytic Potential Of Tanapoxvirus To Treat Retinoblastoma, John D. Christie

Masters Theses

Retinoblastoma is the leading cause of intraocular malignancy in children under 2 years of age. Current treatments, while generally effective in eliminating the tumor, have many negative side effects. Oncolytic virotherapy is the use of either wild type or recombinant viruses, to destroy tumor cells. There are currently several viruses being engineered as potential therapeutics for a wide range of cancers. They offer tumor specific alternative to current therapies with lesser toxicity. This study looked at the oncolytic efficacy of multiple tanapoxviruses (TPV) recombinants in an in vitro retinoblastoma. Here we have tested recombinants of TPV for their ability to …

A Location Allocation Model For Retention Basin Placement On Vacant Land In Detroit, Mi, Keith Chapman

Masters Theses

The principal objective of this research is to develop a location-allocation model for vacant lots in the City of Detroit, MI, to analyze for the suitability of retention basin placement. The model will place the retention basins in areas that will effectively reduce the amount of stormwater runoff that reaches the surrounding storm drains. Detroit needs stormwater mitigation to relieve the burden that is currently on the outdated combined sewer system (CSS). The Detroit Future City strategic framework suggests the use of blue infrastructure controls to alleviate the sewer system and reduce the number of combined sewer overflows (CSOs). The …

Application Of Wavelet Transform In Structural Health Monitoring, Yashodhya Swarna Sri Dhanapala Liyana Kankanamge

Masters Theses

Structural Health Monitoring (SHM) is a process of implementing a damage detection strategy in structures to evaluate the condition of existing structures to ensure the safety of users in the future. The changes in the material, geometric and/or structural properties affect structural responses, which can be captured and analyzed for condition assessment. Various vibration-based damage detection algorithms have been developed in the past decades. Among them, the Continuous Wavelet Transform (CWT) gained popularity as an efficient method of signal processing to build a framework to identify model properties and detect damage in structures. In this study, the application of wavelet …