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2013

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Western Michigan University Commencement Exercises-12pm, John M. Dunn Dec 2013

Western Michigan University Commencement Exercises-12pm, John M. Dunn

WMU President John Dunn

No abstract provided.

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Commencement Convocation Program, Usf, Baccalaureates, December 14, 2013, University Of South Florida Dec 2013

Commencement Convocation Program, Usf, Baccalaureates, December 14, 2013, University Of South Florida

USF Graduation and Convocation Programs

President's Global Leadership Award - Marlene M. Johnson; Outstanding Graduate - Lianet Vazquez; King O'Neal Scholars - Jillianne Deal, Alyssa Dupere, Jessica Haggod, Ahad Khan, Rachel Powell, Emilio Ruiz-Linares, Mariam Saifee, Christopher Thomas Story, and Brandon Sweeting

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Acl Tears: Their Cause And Prevention, Meredith Shephard Dec 2013

Acl Tears: Their Cause And Prevention, Meredith Shephard

Mahurin Honors College Capstone Experience/Thesis Projects

There has been an increase in the prevalence of anterior cruciate ligament (ACL) tears among athletes in the recent years. This paper will seek to discover why ACL injury is so common and if there is any way to minimize these injuries. Research has shown a number of things that can lead to prevention of these injuries, including a correlation between the strength of the hip and thigh muscles and the stability of the ACL. Also many recent studies show that individuals most susceptible to ACL injuries often have difficulty performing gross motor skills such that the lower extremities move …

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Feasibility Study Of Installing Artificial Bathing Platforms At The Northeast Coast Of Malta, Darren Bianco Dec 2013

Feasibility Study Of Installing Artificial Bathing Platforms At The Northeast Coast Of Malta, Darren Bianco

Masters Theses, 2010-2019

The need to create additional bathing areas at rugged karst rocky shores of the northeast coast of Malta could be met by installing temporary wooden decking platforms, since current sandy beaches are very crowded in the peak summer season. Wooden decking platforms are also an acceptable alternative to beach nourishment projects, where the latter can have permanent negative environmental impacts. The old and eroded concrete platforms which cover large areas of the northeast coast of Malta represent an eyesore to the public. The option of overlaying these concrete platforms with a permanent rock amalgam composed of fiber-reinforced concrete which mimics …

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Western Michigan University Commencement Exercises-9am, John M. Dunn Dec 2013

Western Michigan University Commencement Exercises-9am, John M. Dunn

WMU President John Dunn

No abstract provided.

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Mental Illness, Narrative, And Rhetorics Of Recovery, Anders Rains Bruce Dec 2013

Mental Illness, Narrative, And Rhetorics Of Recovery, Anders Rains Bruce

Senior Honors Projects, 2010-2019

No abstract provided.

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Commencement Convocation Program, Usf, Graduate, December 14, 2013, University Of South Florida Dec 2013

Commencement Convocation Program, Usf, Graduate, December 14, 2013, University Of South Florida

USF Graduation and Convocation Programs

Honorary Doctorate of Science - Richard N. Zare

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Spatial Analysis Of Air Velocity Distribution As Affected By House Size And Design In Commercial Broiler Production Facilities, Brian David Luck Dec 2013

Spatial Analysis Of Air Velocity Distribution As Affected By House Size And Design In Commercial Broiler Production Facilities, Brian David Luck

Theses and Dissertations

Tunnel ventilation is the design practice of placing exhaust fans and air inlets on opposite ends of animal production facilities and moving air through the building via negative pressure. Increasing air velocity within tunnel ventilated broiler production facilities increases sensible cooling and reduces the need for latent cooling (panting), which improves production efficiency. An air velocity measurement system was developed and measurement density analysis for quantifying air velocity distribution was performed in a 12.19 x 121.9 m commercial broiler production facility. Results showed that axial measurement distances of 3.05 m and 40 measurement points per cross-section produced the most descriptive …

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Time-Averaged Surrogate Modeling For Small Scale Propellers Based On High-Fidelity Cfd Simulations, Joseph Ray Carroll Dec 2013

Time-Averaged Surrogate Modeling For Small Scale Propellers Based On High-Fidelity Cfd Simulations, Joseph Ray Carroll

Theses and Dissertations

Many Small Unmanned Aerial Vehicles (SUAV) are driven by small scale, fixed blade propellers. The flow produced by the propeller, known as the propeller slipstream, can have significant impact on SUAV aerodynamics. In the design and analysis process for SUAVs, numerous Computational Fluid Dynamic (CFD) simulations of the coupled aircraft and propeller are often conducted which require a time-averaged, steady-state approximation of the propeller for computational efficiency. Most steady-state propeller models apply an actuator disk of momentum sources to model the thrust and swirl imparted to the flow field by a propeller. These momentum source models are based on simplified …

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The Role Of Oxygen In The Uptake Of Deuterium In Lithiated Graphite, C. N. Taylor, J. Dadras, Kara E. Luitjohan, Jean P. Allain, P. S. Kristic, C. H. Skinner Dec 2013

The Role Of Oxygen In The Uptake Of Deuterium In Lithiated Graphite, C. N. Taylor, J. Dadras, Kara E. Luitjohan, Jean P. Allain, P. S. Kristic, C. H. Skinner

Birck and NCN Publications

We investigate the mechanism of deuterium retention by lithiated graphite and its relationship to the oxygen concentration through surface sensitive experiments and atomistic simulations. Deposition of lithium on graphite yielded 5%-8% oxygen surface concentration and when subsequently irradiated with D ions at energies between 500 and 1000 eV/amu and fluences over 10(16) cm(-2) the oxygen concentration rose to between 25% and 40%. These enhanced oxygen levels were reached in a few seconds compared to about 300 h when the lithiated graphite was allowed to adsorb oxygen from the ambient environment under equilibrium conditions. Irradiating graphite without lithium deposition, however, resulted …

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Delamination Detection In Concrete Using Disposable Impactors For Excitation, Anjali Narendra Patil Dec 2013

Delamination Detection In Concrete Using Disposable Impactors For Excitation, Anjali Narendra Patil

Theses and Dissertations

Delaminations in concrete bridge decks result primarily from corrosion of the reinforcing bars (or rebar). This corrosion leads to volumetric expansion of the rebar. When the rebar expands, concrete cracks, and there is a localized separation of the concrete cover from the underlying concrete. Impact-echo testing is an effective technique to map delaminations on concrete bridge decks. However, mapping speed is limited by necessary retrieval of the impactor for traditional tests. To achieve higher scanning speeds, it is advantageous to use both a non-contact measurement (air-coupled impact-echo) and disposable-impactor excitation. Disposable impactors have the potential advantage of achieving greater deck …

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Xylo-Oligosaccharides Production From Corn Fiber And In-Vitro Evaluation For Prebiotic Effect, Aditya Samala Dec 2013

Xylo-Oligosaccharides Production From Corn Fiber And In-Vitro Evaluation For Prebiotic Effect, Aditya Samala

Theses and Dissertations

Xylooligosaccharides (XOS) are considered to be prebiotics. Prebiotics are defined as non-digestible food ingredients that benefit the host by stimulating the growth and activity of a limited number of bacteria, such as the Bifidobacterium genus, in the colon. Corn fiber separated from distillers dried grains with solubles (DDGS) could be a valuable feedstock for XOS production. The objective of the first chapter was to determine the efficacy for autohydrolysis to produce XOS using fiber separated from DDGS. Fiber was treated with deionized water in a Parr-reactor, at temperatures ranging from 140 to 220 °C to produce XOS. The maximum total …

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164th Commencement, Fall Dec 2013

164th Commencement, Fall

Commencement Programs

No abstract provided.

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Transmission Shift Map Optimization For Reduced Electrical Energy Consumption In A Pre-Transmission Parallel Plug-In Hybrid Electric Vehicle, Jonathan Dean Moore Dec 2013

Transmission Shift Map Optimization For Reduced Electrical Energy Consumption In A Pre-Transmission Parallel Plug-In Hybrid Electric Vehicle, Jonathan Dean Moore

Theses and Dissertations

The use of an automatic transmission in pre-transmission parallel hybrid electric vehicles provides greater potential for powertrain optimization than conventional vehicles. By modifying the shift map, the transmission’s gear selection can be adjusted to reduce the energy consumption of the vehicle. A method for determining the optimal shift map for this hybrid vehicle has been implemented using global optimization and software-in-the-loop vehicle simulation. An analysis of the optimization has been performed using software-in-the-loop and hardware-in-the-loop simulation and evaluates two vehicle modes: regenerative braking active and regenerative braking disabled. The results of these two modes illustrate the successful implementation of the …

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Model-Based Autonomic Performance Management Of Distributed Enterprise Systems And Applications, Rajat Mehrotra Dec 2013

Model-Based Autonomic Performance Management Of Distributed Enterprise Systems And Applications, Rajat Mehrotra

Theses and Dissertations

Distributed computing systems (DCS) host a wide variety of enterprise applications in dynamic and uncertain operating environments. These applications require stringent reliability, availability, and quality of service (QoS) guarantee to maintain their service level agreements (SLAs). Due to the growing size and complexity of DCS, an autonomic performance management system is required to maintain SLAs of these applications. A model-based autonomic performance management structure is developed in this dissertation for applications hosted in DCS. A systematic application performance modeling approach is introduced in this dissertation to define the dependency relationships among the system parameters, which impact the application performance. The …

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Modeling Dendritic Solidification Using Lattice Boltzmann And Cellular Automaton Methods, Mohsen Eshraghi Kakhki Dec 2013

Modeling Dendritic Solidification Using Lattice Boltzmann And Cellular Automaton Methods, Mohsen Eshraghi Kakhki

Theses and Dissertations

This dissertation presents the development of numerical models based on lattice Boltzmann (LB) and cellular automaton (CA) methods for solving phase change and microstructural evolution problems. First, a new variation of the LB method is discussed for solving the heat conduction problem with phase change. In contrast to previous explicit algorithms, the latent heat source term is treated implicitly in the energy equation, avoiding iteration steps and improving the formulation stability and efficiency. The results showed that the model can deal with phase change problems more accurately and efficiently than explicit LB models. Furthermore, a new numerical technique is introduced …

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Drawing Lessons From The U.K. Constitutional Reform Act Of 2005, Terence J. Lau Dec 2013

Drawing Lessons From The U.K. Constitutional Reform Act Of 2005, Terence J. Lau

Management and Marketing Faculty Publications

In this City Square dialogue, Professor Judith Maute provided the initial spark in her important 2007 article on reforms to judicial selection in the United Kingdom.[1] In her article, Professor Maute outlined the breathtaking and daring changes implemented in the U.K. that upended centuries of tradition to modernize and strengthen public confidence in the judiciary. Most significant among these changes were the creation of a Supreme Court and dramatically moving the process of becoming a judge away from a secretive appointment to a professional Judicial Appointments Commission.[2] The reforms eschew direct affirmative action, but place an explicit value on diversity …

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A Dynamic Hybrid Rans/Les Modeling Methodology For Turbulent/Transitional Flow Field Prediction, Mohammad Faridul Alam Dec 2013

A Dynamic Hybrid Rans/Les Modeling Methodology For Turbulent/Transitional Flow Field Prediction, Mohammad Faridul Alam

Theses and Dissertations

A dynamic hybrid Reynolds-averaged Navier-Stokes (RANS)-Large Eddy Simulation (LES) modeling framework has been investigated and further developed to improve the Computational Fluid Dynamics (CFD) prediction of turbulent flow features along with laminar-to-turbulent transitional phenomena. In recent years, the use of hybrid RANS/LES (HRL) models has become more common in CFD simulations, since HRL models offer more accuracy than RANS in regions of flow separation at a reduced cost relative to LES in attached boundary layers. The first part of this research includes evaluation and validation of a dynamic HRL (DHRL) model that aims to address issues regarding the RANS-to-LES zonal …

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A Framework For Identifying Appropriate Sub-Regions For Ecosystem-Based Management In Northern Gulf Of Mexico Coastal And Marine Environments, Jennifer Sloan Ziegler Dec 2013

A Framework For Identifying Appropriate Sub-Regions For Ecosystem-Based Management In Northern Gulf Of Mexico Coastal And Marine Environments, Jennifer Sloan Ziegler

Theses and Dissertations

Nearly half of the population of the United States lives in coastal regions, and millions of visitors from across the nation and world enjoy the coasts every year. Coastal and marine areas provide for recreation, economic activities essential for the financial health of the nation, and vital ecological services. As they provide so many benefits to the U.S., it is vital to protect and preserve the coastal and ocean areas from the increasing, competing demands they are facing. In order to protect and preserve these complex systems, a comprehensive approach incorporating science, engineering, humanities, and social sciences should be taken; …

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A Multiple Case Study For Calibrating Acoustic Backscatter To Total Suspended Material In A Large River System, Brittany Lynne Gunkel Dec 2013

A Multiple Case Study For Calibrating Acoustic Backscatter To Total Suspended Material In A Large River System, Brittany Lynne Gunkel

Theses and Dissertations

Sediment transport measurements are determined using techniques such as bedmaterial and suspended-sediment sampling, and more recently the conversion of acoustic backscatter (ABS). Acoustic waves scatter and attenuate while passing through a watersediment mixture and the backscatter is converted to sediment concentration, size, and shape. A multiple case study performed using data from West Bay, Old River, and Mississippi River at Vicksburg show the variability of a large river system TSM flux during assorted hydrographs and two methods (CHL and moving boat) capture the events. After processing and applying the two methods the results showed that the methods are typically within …

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Commencement Convocation Exercises - December 2013, Prairie View A&M University Dec 2013

Commencement Convocation Exercises - December 2013, Prairie View A&M University

Commencement and Convocation Exercises

No abstract provided.

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Optimization Models For Cost Efficient And Environmentally Friendly Supply Chain Management, Gokce Palak Dec 2013

Optimization Models For Cost Efficient And Environmentally Friendly Supply Chain Management, Gokce Palak

Theses and Dissertations

This dissertation aims to provide models which will help companies make sustainable logistics management and transportation decisions. These models are extensions of the economic lot sizing model with the availability of multiple replenishment modes. The objective of the models is to minimize total replenishment costs and emissions. The study provides applications of these models on contemporary supply chain problems. Initially, the impact of carbon regulatory mechanisms on the replenishment decisions are analyzed for a biomass supply chain under fixed charge replenishment costs. Then, models are extended to consider multiple-setups replenishment costs for age dependent perishable products. For a cost minimization …

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Evaluation Of Performance Of Combined Heat And Power Systems With Dual Power Generation Units (D-Chp), Alta Alyce Knizley Dec 2013

Evaluation Of Performance Of Combined Heat And Power Systems With Dual Power Generation Units (D-Chp), Alta Alyce Knizley

Theses and Dissertations

In this research, a new combined heat and power (CHP) system configuration has been proposed that uses two power generation units (PGU) operating simultaneously with different operational strategies (D-CHP). The performance of the proposed D-CHP system configuration, with one PGU operated at a constant base load and the other operated following the electric load, is quantified in terms of operational cost savings, primary energy consumption (PEC) savings, and carbon dioxide emissions (CDE) savings over a reference case employing a conventional, separate heat and power system. D-CHP system performance is also compared to standard, single PGU operational strategies. The D-CHP system …

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Conventional Pavements And Perpetual Pavements: A Rational And Empirical Approach, Wenqi Wang Dec 2013

Conventional Pavements And Perpetual Pavements: A Rational And Empirical Approach, Wenqi Wang

Theses and Dissertations

A study has been conducted to compare conventional pavements and perpetual pavements with a particular emphasis on perpetual pavements. One of the main drawbacks of conventional pavements and motivations for this work is the maintenance required for hot mix asphalt (HMA) pavements with sub-drainage systems. Perpetual pavements, as the name suggests, are designed with a long life. However, this is a relatively new concept and there are still many unknowns concerning their performance. This dissertation was written to answer some of the questions. The study examines structural response and performance of perpetual pavements. Also, deterioration and performance of perpetual pavements …

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Automatic Modulation Recognition For Aeronautical Telemetry, Jacob William Frogget Dec 2013

Automatic Modulation Recognition For Aeronautical Telemetry, Jacob William Frogget

Theses and Dissertations

This these explores automatic modulation recognition as applied to PCM/FM, SOQPSK- TG and ARTM CPM. It found that the likelihood based approach is intractable. The statistical features of the amplitude, phase and frequency are ineffective at distinguishing these modulation types. A method based on the phase changes between symbols is developed and shows that as long as symbol timing is established, this method can effectively distinguish PCM/FM, SOQPSK-TG and ARTM CPM for signal-to-noise ratios above 30 dB. Another method, the Bianchi-Loubaton- Sirven technique, was able to distinguish PCM/FM and SOQPSK-TG but was unable to distinguish ARTM CPM. A happy byproduct …

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Characterization And Reaction Of An Analog Of The Anticancer Drug Oxaliplatin, Jonathan D. Hendrie Dec 2013

Characterization And Reaction Of An Analog Of The Anticancer Drug Oxaliplatin, Jonathan D. Hendrie

Mahurin Honors College Capstone Experience/Thesis Projects

Oxaliplatin is an anticancer drug that reacts with DNA, RNA, and proteins both in vitro and in vivo. Our research focuses on synthesizing analogs of oxaliplatin and understanding how bulky ligand groups affect reaction with amino acids. (R,R)-N,N’-dimethyl-1,2-diaminocyclohexane platinum(II) oxalate or Pt(Me2dach)(ox) varies from oxaliplatin or Pt(dach)(ox) in that it has one methyl group attached to each platinum coordinated nitrogen. Nuclear Magnetic Resonance (NMR) spectroscopy has shown that the reactions of N-Acetylmethionine (N-AcMet) with Pt(Me2dach)(ox) and Pt(dach)(ox) proceed at similar rates suggesting that the methyl groups of Pt(Me2dach)(ox) have little effect on the initial reaction. Whereas the reaction of Pt(dach)(ox) …

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Racial Desegregation Of Higher Education In Virginia: Black And White, And Gray?, Alexandra Jaclyn Kolleda Dec 2013

Racial Desegregation Of Higher Education In Virginia: Black And White, And Gray?, Alexandra Jaclyn Kolleda

Senior Honors Projects, 2010-2019

No abstract provided.

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Public Perception On The State Of Air Quality In Malta, Nikolas Cassar Dec 2013

Public Perception On The State Of Air Quality In Malta, Nikolas Cassar

Masters Theses, 2010-2019

Public perception on the state of air quality is an unclear and hazy concept whereby every individual has different opinions and views. In fact, the state of air quality is a major concern in many countries, including in Malta. This problem arises from the emissions of a number of pollutants to the atmosphere from a host of processes such as the combustion of fuel to generate electricity and the internal combustion engines to manoeuvre cars. Amongst these pollutants, there are benzene and nitrogen dioxide, which are very hazardous since they cause problems related to human health and contribute in the …

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Potential Energy Savings When Using Saline Water For Cooling Chillers In Malta, Mireille Micallef Dec 2013

Potential Energy Savings When Using Saline Water For Cooling Chillers In Malta, Mireille Micallef

Masters Theses, 2010-2019

Several cooling systems found in facilities on the coast of St. Julian’s were found to be making use of chillers whose condensers are cooled with saline water as opposed to air. The former practice is advantageous since it results in better chiller performance which can be explained through thermodynamic principles. The principle of operation of water cooled chillers is to reject heat from the condenser to saline groundwater obtained from boreholes through a heat exchanger. The higher temperature saline ground water is then rejected to the sea. Chillers cooled with saline groundwater are subject to the Borehole Drilling and Excavation …

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Temperature Effects Of Dielectric Properties And Their Impact On Medical Device Development, Erin Elizabeth Colebeck Dec 2013

Temperature Effects Of Dielectric Properties And Their Impact On Medical Device Development, Erin Elizabeth Colebeck

Theses and Dissertations

Dielectric properties play an influential role in the development of medical devices. Understanding the behavior of these properties and how they respond to external stimuli, such as heat, over an extended frequency has yet to be researched. The focus of this study is to examine the impact of temperature on dielectric properties from 500 MHz to 10 GHz in order to better match the antenna properties of medical applications to the dielectric properties of biological tissue in question; more specifically, microwave ablation, microwave hyperthermia, and thermal modeling of brown adipose tissue’s metabolic processes. The dielectric properties of biological tissue samples …

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