Engineering Commons^™

Human-Machine Interface Development For Modifying Driver Lane Change Behavior In Manual, Automated, And Shared Control Automated Driving, Walter Joseph Talamonti

Wayne State University Dissertations

Rear-end crashes are common on U.S. roads. Driver assistance and automated driving technologies can reduce rear-end crashes (among other crash types as well). Braking is assumed for forward collision warning (FCW) and automatic emergency braking (AEB) systems. Braking is also used for adaptive cruise control (ACC) and in automated driving systems more generally. However, steering may be advised in an emergency if the adjacent lane is clear and braking is unlikely to avoid a collision. Steering around an obstacle when feasible also eliminates the risk of becoming the new forward collision hazard. Driver assist technology like emergency steer assist (ESA) …

Video Stream Adaptation In Computer Vision Systems, Yousef Sharrab Sharrab

Wayne State University Dissertations

Computer Vision (CV) has been deployed recently in a wide range of applications, including surveillance and automotive industries. According to a recent report, the market for CV technologies will grow to $33.3 billion by 2019. Surveillance and automotive industries share over 20% of this market. This dissertation considers the design of real-time CV systems with live video streaming, especially those over wireless and mobile networks. Such systems include video cameras/sensors and monitoring stations. The cameras should adapt their captured videos based on the events and/or available resources and time requirement. The monitoring station receives video streams from all cameras and …

Mri Methods For Imaging The Feto-Placental Vasculature And Blood, Uday Krishnamurthy

Wayne State University Dissertations

Fetal magnetic resonance imaging (MRI) in recent times has become a well-established adjunct to ultrasound (US) in routine clinical prenatal care and diagnostics. The majority of fetal MRI is restricted to T2-weighted scans, where the diagnosis is based on the appearance of normal and abnormal tissue. Although there have been many advancements in MRI and a plethora of sequences, that probe different anatomical and different physiological process, the adaptation of these in fetal imaging has been rather slow. Many of these can extract quantitative parameters that can throw light on the underlying tissue’s normal/patho-physiology. But the use of such quantitative …

An Effective Methodology For Suppressing Structure-Borne Sound Radiation, Lingguang Chen

Wayne State University Dissertations

ABSTRACT

AN EFFECTIVE METHODOLOGY FOR SUPPRESSING

STRUCTURE-BORNE SOUND RADIATION

by

LINGGUANG CHEN

December 2017

Advisor: Dr. Sean F. Wu

Major: Mechanical Engineering

Degree: Doctor of Philosophy

This dissertation is primarily concerned with the development of an effective methodology for reducing structure-borne sound radiation from an arbitrarily shaped vibrating structure. There are three major aspects that separate the present methodology from all the previous ones. Firstly, it is a non-contact and non-invasive approach, which is applicable to a class of vibrating structures encountered in engineering applications. Secondly, the input data consists of a combined normal surface velocity distribution on a portion …

An Enhanced Nerve Conduit Combined With Exercise To Improve Functional Recovery After Peripheral Nerve Injury, Tonya Jo Whitehead

Wayne State University Dissertations

Peripheral nerve injuries affect millions of people each year around the world. Current treatments include an autograft, the gold standard, and commercially available nerve growth conduits (NGC). Autografts have several drawbacks including donor site morbidity and nerve size mismatch, which leads to incomplete recovery. Commercial NGCs can help with recovery but do not contain any specific cues to guide nerve regeneration. This thesis first evaluated mechanical, topographical and chemical cues that can be included in a NGC to promote and direct nerve regeneration. To incorporate all of the cues, a compliant substrate methacrylated hyaluronic acid (MeHA, mechanical cue) is electrospun …

Biomaterials Approaches For Utilizing The Regenerative Potential Of The Peripheral Nerve Injury Microenvironment, Melissa Renee Wrobel

Wayne State University Dissertations

Clinically available treatments are insufficient to achieve full functional recovery in large (>3cm) peripheral nerve injuries (PNI). The objectives in this thesis were 1) to study often overlooked elements of intrinsic PNI repair including release of inhibitory CSPGs and post-injury responses of inflammatory macrophages and dedifferentiated Schwann cells; 2) to create biomaterial scaf-folds featuring topographical and adhesive cues to enhance neurite outgrowth; and 3) to test the ability of those cues to direct macrophages and Schwann cells towards a pro-regenerative phe-notype. It is hypothesized that recapitulating the positive and negative cues of the PNI microenvi-ronment can better improve regeneration. …

Utility Of Ultrasound/Photoacoustic Imaging For Accurate Catheter Tracking And Temperature Monitoring During Endovenous Laser Ablation, Ayushi Jharia, Keerthana Palani, Yan Yan

Research Opportunities for Engineering Undergraduates (ROEU) Program 2016-17

Laser ablation is a treatment method that uses light energy through a catheter inserted into a vein to induce localized heat to close the diseased blood vessels. Ultrasound (US) imaging has been used for catheter visualization and tracking. US has limitations for tracking the accurate location of the fiber tip inside small perforating veins such as angular dependency and comet tail artifacts. We propose a robust and accurate method for fiber tip tracking using combined US and Photoacoustic (PA) imaging to overcome the existing limitations.

Integrative Pathway Analysis Pipeline For Mirna And Mrna Data, Diana Mabel Diaz Herrera

Wayne State University Theses

The identification of pathways that are involved in a particular phenotype helps us understand the underlying biological processes. Traditional pathway analysis techniques aim to infer the impact on individual pathways using only mRNA levels. However, recent studies showed that gene expression alone is unable to capture the whole picture of biological phenomena. At the same time, MicroRNAs (miRNAs) are newly discovered gene regulators that have shown to play an important role in diagnosis, and prognosis for different types of diseases. Current pathway analysis techniques do not take miRNAs into consideration. In this project, we investigate the effect of integrating miRNA …

Turbulent Spray Combustion Modeling Using Direct Integration Of Chemistry And Flamelet Generated Manifolds, Ashraya Goyal

Wayne State University Theses

Turbulent spray combustion of n-dodecane was modeled at engine relevant conditions using various combustion models (Direct Integration of Chemistry and Flamelet Generated Manifolds) and turbulence models (Dynamic Structure Large Eddy Simulation and RNG Reynolds-Averaged Naiver-Stokes). A recently developed n-dodecane mechanism was utilized and the turbulent spray was simulated at various combustion chamber initial gas temperature and pressure conditions. Mesh with size of 31 microns was utilized to resolve small eddies around the spray. The pressure-based ignition delay, flame lift-off length, and spray and jet penetrations were studied and compared with experimental measurements. The Direct Integration of Chemistry and Flamelet Generated …

Analysis Of Cross-Layer Optimization Of Facial Recognition In Automated Video Surveillance, Loren Garavaglia

Wayne State University Theses

Interest in automated video surveillance systems has grown dramatically and with that so too has research on the topic. Recent approaches have begun addressing the issues of scalability and cost. One method aimed to utilize cross-layer information for adjusting bandwidth allocated to each video source. Work on this topic focused on using distortion and accuracy for face detection as an adjustment metric, utilizing older, less efficient codecs. The framework was shown to increase accuracy in face detection by interpreting dynamic network conditions in order to manage application rates and transmission opportunities for video sources with the added benefit of reducing …

A New Centering Table For Encapsulated Glass Positioning, Chongyang Li

Wayne State University Theses

With the progress of the society, people`s living standard is increasing. More and more cars (more than 72 million) are produced and utilized all over the world. This makes a large number of quarter windows which located on the back-side window of a vehicle are urgently needed. Encapsulated glass is widely adopted for a quarter window for various advantages. Positioning by centering table is one of the most important procedures during the fabrication of encapsulated glass for the quarter window. The existing centering table has a lot of disadvantages such as poor flexibility and precision, which results in failure in …

Monte-Carlo-Simulation-Based, Product-Quality-Focused Analysis Of Nanocoating Curing And Post Curing Process, Jianming Zhao

Wayne State University Theses

ABSTRACT

MONTE CARLO SIMULATION BASED

PRODUCT QUALITY ANALYSIS OF

POLYMER COATING CURING AND POST CURING

By

Jianming Zhao

May 2017

Advisor：Dr. Yinlun Huang

Major: Chemical Engineering

Degree: Master of Science

To achieve better property of polymer coatings, different categories of nanoparticles are applied before coating’s curing process. However, one of the adverse effects is the change of final property, which leads the difficulty of product quality control. Using mathematical modeling method can actually improve the cost and time to get a prediction of product quality. Still now, different series of models are developed for various purposes. For example, Monte-Carlo simulation …

Dynamic Rabi Oscillations In A Quantum Dot Embedded In A Nanobridge In The Presence Of Surface Acoustic Waves, Lev Mourokh, Achim Wixforth, Florian Beil, Max Bichler, Werner Wegscheider, Robert H. Blick

Publications and Research

A quantum dot is created within a suspended nanobridge containing a two-dimensional electron gas. The electron current through this dot exhibits well-pronounced Coulomb blockade oscillations. When surface acoustic waves (SAW) are driven through the nanobridge, Coulomb blockade peaks are shifted. To explain this feature, we derive the expressions for the quantum dot level populations and electron currents through these levels and show that SAW-induced Rabi oscillations lead to the observed phenomenology.

A Comparative Analysis Of Furniture Dowel Joint Strength Among Various Dowel Styles, Taylor C. Fatheree

Undergraduate Honors Theses

This study examines the effectiveness of various dowels used in furniture joints. Using multiple linear regression, it examines the interaction between dowel penetration depth and surface treatment. Two commercially available surface treatments, fluted cut and spiral cut, were tested against a smooth home-made dowel. Through the bending tests, it was found that depth of penetration had a positive effect on the joint strength. Additionally, home-made dowels were significantly better than both fluted and spiral in softwood tests, and the home-made and the spiral were significantly better than the fluted in the hardwood tests.

Increasing Efficiency In The Construction Industry And Construction Management Classrooms Using Computer Software, Tina T. Bien

Undergraduate Honors Theses

The purpose of this research is to identify the best computer software programs that are the most effective within the construction industry. Companies are gradually shifting from manual practices to various software and technologies to optimize business and communication efficiency. With the plethora of software available, the industry does not fully understand which software are the most effective for addressing the challenges of the industry. As the industry is struggling with integrating these software into their company structure, more money is being spent to tackle the challenges that face the construction industry today. Companies that do not integrate construction technology …

Investigation Of The Thermal Performance Of Sierpinski Carpet Fractal Fins In A Natural Convection Environment, Jennifer P. Shaffer

Honors College Theses

This experimental investigation studies the thermal performance of the first four iterations of the Sierpinski carpet pattern in a natural convection environment. This particular fractal geometry is promising in that it increases the available surface area for heat transfer while simultaneously decreasing the mass of the system. This makes it a potentially advantageous design for fins or heat sinks, especially in aerospace applications where minimizing mass of the system is essential. The thermal performance was evaluated by comparing the efficiency, effectiveness, and effectiveness per unit mass for each fractal iteration. The results indicate that efficiency decreases with each fractal iteration …

Small-Scale Electric Vehicle Dc-Dc Converter For Nano-Grids Applications, Adam Johnston, Mason Johnson, John Sweat, Adel El-Shahat

Electrical & Computer Engineering: Faculty Publications

Have you ever wondered what it would be like to have a self-sustained charging system that does not cost you any money on your electric bill? Electric car owners know that even though their cars do not require gasoline to run, they will require electricity and like everyone else that is tied to the grid will have to pay a price per kilowatt hour that is determined by their utility company. With gasoline prices falling somewhat in the past year the hype of electric vehicles has been somewhat less but who knows what the oil market is going to be …

Modelling And Simulation Of Grid Connected Lithium-Ion Battery Using Homer, Shantu Ghose, Adel El-Shahat

Electrical & Computer Engineering: Faculty Publications

In order to improve battery technology understanding the capacity fading method in batteries is very important. Battery models can be used to predict their behavior under various operating conditions. Here we proposed a simple dynamic model of lithium-ion battery with MATLAB/Simulink to observe the output characteristics of this energy storage device. Dynamic simulations are carried out, including the observation of the changes in battery terminal output voltage under different discharging/charging, temperature and cycling conditions. The simulation studies are presented for proving that the model is useful. At the end we will use this energy storage device to interconnect with HOMER. …

Module 2: Solar Powered Cricket Lab & Engineering Guest Speaker, Lindsay Snowden

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

Students will participate in a Solar Panel Cricket lab to determine which environmental condition would allow for the solar panel to produce the most power. The three conditions are inside, inside with a flashlight, or outside in the sun. The students will complete a correlating lab worksheet. Students will also ask questions and hold discussions with the guest speaker. Students will actively participate while the guest speaker is presenting.

Power House Sustainable Energy Education, Rachael Grillo, Molly Hopper, Laura Mills

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

No abstract provided.

Renewable Energy, Keith Bazemore

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

Lesson Plan for Renewable Energy- Environmental Science.

Nsf Energy - Pico-Grid Smart Homes Power Management System, Aaron Specht, Shaina Neal

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

No abstract provided.

Wind Energy, Bob Deckard, Jaimee Howard

ENgaging Educators in Renewable enerGY (ENERGY): Lesson Plans & Slideshows (2017-2019)

No abstract provided.

Probabilistic Analysis And Verification Framework For Adaptive Flight Control, Mario Luca Fravolini, Tansel Yucelen, Marcello Napolitano

Mechanical and Aerospace Engineering Faculty Research & Creative Works

A crucial aspect that could facilitate the applications of adaptive control systems in aerospace applications is the development of effective validation and verification procedures. Most of the existing analysis and design frameworks for adaptive controllers are based on the Lyapunov direct method. One well-known drawback of this approach is the conservatism in the estimation of the uniform ultimate boundedness region with little practical utility. To overcome this limitation, a probabilistic framework for the design of uniform ultimate boundedness regions is proposed where uncertain parameters and adaptive controls are considered as random variables. In this framework, the design is translated into …

Plume Characterization Of Electric Solid Propellant Pulsed Microthrusters, Matthew S. Glascock, Joshua L. Rovey, Shae Williams, Jason Thrasher

Mechanical and Aerospace Engineering Faculty Research & Creative Works

Electric solid propellants are an attractive option for propulsion because they are ignited only by an applied electric current. This leads to capabilities such as on-demand throttling and reignition in chemical combustion operation, and it lends itself to application in electric propulsion. In this work, the plasma plume created by electric solid propellant pulsed micro thrusters is investigated using a nude Faraday probe, a triple Langmuir probe, and residual gas analysis. The thrusters are tested at a vacuum level of 2 x 10-5torr. Results indicate an average plume electron temperature of 1.7 eV and a density of 1011 to 1014cm-3. …

Characterizing Effects Of Nitric Oxide Sterilization On Tert-Butyl Acrylate Shape Memory Polymers, Ben Phillippi

Theses - ALL

As research into the potential uses of shape memory polymers (SMPs) as implantable medical devices continues to grow and expand, so does the need for an accurate and reliable sterilization mechanism. The ability of an SMP to precisely undergo a programmed shape change will define its ability to accomplish a therapeutic task. To ensure proper execution of the in vivo shape change, the sterilization process must not negatively affect the shape memory behavior of the material. To address this need, this thesis investigates the effectiveness of a benchtop nitric oxide (NOx) sterilization process and the extent to which the process …

Nanoparticle-Induced Unusual Melting And Solidification Behaviours Of Metals, C. Ma, Lianyi Chen, C. Cao, X.C. Li

Mechanical and Aerospace Engineering Faculty Research & Creative Works

No abstract provided.

Smart Ev Charging For Improved Sustainable Mobility, Ashutosh Shivakumar

Browse all Theses and Dissertations

The landscape of energy generation and utilization is witnessing an unprecedented change. We are at the threshold of a major shift in electricity generation from utilization of conventional sources of energy like coal to sustainable and renewable sources of energy like solar and wind. On the other hand, electricity consumption, especially in the field of transportation, due to advancements in the field of battery research and exponential technologies like vehicle telematics, is seeing a shift from carbon based to Lithium based fuel. Encouraged by 1. Decrease in the cost of Li – ion based batteries 2. Breakthroughs in battery chemistry …

Zeolitic Imidazolate Framework (Zif) Incorporated Membrane For Co2/Ch4 Separation, Nampetch Padungpetch

Chulalongkorn University Theses and Dissertations (Chula ETD)

Biogas is the alternative energy that has a methane gas as the main composition. Before using it, biogas must be upgraded by the removal of all impurities especially CO2. The membrane technology is considered an efficient and environmentally friendly process for biogas upgrading. However, there is still a limited number of promising membranes. Accordingly, this study aims to develop the hollow fiber membrane for the biogas upgrading. The synthesized hollow fiber membranes, which were a composite membrane, were composed of a support layer of polyetherimide (PEI) and a mixed matrix selective layer of commercial poly(ether-block-amide) (Pebax 1657) and zeolitic imidazolate …

Investigation On A Cooling Channel Design For A High Heat Flux Oxy-Fuel Direct Power Extraction Combustor, Luisa Alejandra Cabrera Maynez

Open Access Theses & Dissertations

The implementation of oxy-fuel technology in fossil-fuel power generation could result in a drastic increase of system efficiencies and a reduction of emissions. While typical system temperatures are dictated by material constraints, open-cycle magnetohydrodynamic (MHD) power generators have the potential to utilize the energy of undiluted flames. This work presents design and modeling strategies to develop steady-state supersonic MHD combustors operating at temperatures exceeding 3000 K. Throughout the study, computational fluid dynamics (CFD) models were extensively used as a design and optimization tool. A proof-of-concept 60 kWth model was designed, manufactured and tested in accordance to methods relevant to rocket …