Engineering Commons^™

A Dynamic Policing Simulation Framework, Khan Md Ariful Haque

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Crime is a serious problem to a society, and its costs are an economic burden. With the help of technology and developed tools, law enforcement agencies are making significant efforts to combat crime, so as to create a safer environment for society, both mentally and physically. The dynamic nature of crime and limited police resources often make their efforts challenging. Although there are numerous crime prediction models found in the policing literature, guidelines for policing strategies based on those models are still lacking. Towards addressing this gap, this dissertation constructs a dynamic policing simulation framework based on the concept of …

A Parametric Process-Based Cost Estimation Framework To Support Conceptual Product Family Design And Production, Zahra Banakar

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

In today’s globally competitive environment, production costs estimation is a challenging task. This competitive market has brought specific strategies in the manufacturing sector, such as introducing more new products into the market with lower prices. In order to have the most accurate production costs estimation, accurate production cost information in a useful and relevant form is needed. This study presents a cost estimation framework that integrates both activity and parametric cost estimation methods to increase the ease, accuracy, and speed of producing cost estimates for a family of products or services. There is a need for an integrated production cost …

A Dynamic Multiple Stage, Multiple Objective Optimization Model With An Application To A Wastewater Treatment System, Prashant Tarun

Industrial, Manufacturing, and Systems Engineering Dissertations - Archive

Decision-making for complex dynamic systems involves multiple objectives. Various methods balance the tradeoffs of multiple objectives, the most popular being weighted-sum and constraint-based methods. Under convexity assumptions an optimal solution to the constraint-based problem can also be obtained by solving the weighted-sum problems, and all Pareto optimal solutions can be obtained by systematically varying the weights or constraint limits. The challenge is to generate meaningful weights or constraint limits that yield practical solutions. In this dissertation, we utilize the Analytic Hierarchy Process (AHP) and develop a methodology to generate weight vectors successively for a dynamic multiple stage, multiple objective (MSMO) …

The Design, Analysis, Development, And Test Of A High-Energy Trauma Prevention Safety Device, Samuel B. Schaefer

Masters Theses

The continued development of modern-day vehicles has allowed innovators to shape their design to meet the consumer’s requirements. Vehicles have become faster and larger to accommodate more passengers and their belongings. The increased popularity of Light Trucks or Vans (LTVs) and Sports Utility Vehicles (SUVs) elevated their sales to approximately 50% of all vehicles sold in the United States by 1999 [1]. These advancements have created a high-energy world, which poses a serious threat to the ever-growing population. Unprotected pedestrians come in all too frequent contact with these vehicles creating the potential for high-energy blunt force trauma. This thesis aims …

Vision-Based Navigation For Electromagnetic Formation Flight, Nasir Ghazi Hariri

Theses and Dissertations

The concept of using Satellite Formation Flight (SFF) reveals various benefits for a space mission. However, relying on a consumable actuation system to maintain a desired relative position and orientation between flying satellites has hindered its practicality and feasibility for long duration missions. By adapting the SFF concept such that electromagnetic actuation mechanism is employed, the concept of Electromagnetic Formation Flight (EMFF) offers a great potential to validate such a technology. EMFF provides interacting forces and torques between flying satellites to maintain their relative position within a formation using its electromagnetic actuation capabilities. This dissertation demonstrates the possibilities of utilizing …

Analysis And Classification Of 3-D Printed Collagen-Bioglass Matrices For Cellular Growth Utilizing Artificial Neural Networks, Trevor Schmitt

Theses and Dissertations

Introduction: Recent advances have shown the influence of biomimetic design on modulation of the extracellular matrix (ECM) and the role stiffness of it plays in cellular behavior. 2-D models for cellular growth poorly recapitulate the natural environment of cells, whereas application of a 3-D ECM model allows for a more biomimetic design for modeling cellular behavior. Integration of 45S5 Bioglass provides and osteostimulatory mineral component to these 3-D models, allowing for better mimicry of orthopedic design, affecting the mechanical and physiochemical properties of the ECM and leading to an increase in osteogenic behavior. 3-D Bioprinting allows for custom fabrication of …

Mindful: A Novel Virtual System Migration Decision-Making Framework For Automated Cyber-Resiliency, Nicholas James Lowing

Theses and Dissertations

Virtual system migration has revolutionized modern computing. As an advantageous byproduct of virtualization, virtual system migration has allowed for cheaper, more robust cloud management. The selection of a destination host during migration is a key component of migration management. However, there is currently no state-of-the-art, standardized framework for making this decision. Previous work related to automated load balancing is plentiful, but when load balancing is not the primary focus of the cloud management strategy there is a lack of research. We focus on this case, where virtual systems are no longer moved based on some predefined optimization pattern, but rather …

Global Renewable And Nonrenewable Energy Use Impact Assessment Of U.S. Manufacturing: An Integrated Cradle-To-Gate Lca And Dea Approach, Bahadir Ezici

Master's Theses

In this thesis, U.S. manufacturing industries` global supply chain-linked energy use and economic output are investigated considering a total of 16 renewable and nonrenewable energy carriers. A multiregion input output (MRIO) framework is employed to conduct the global supply chain-linked energy use impact assessment. The study period was between 1995 and 2014 based on data availability. Thus, 20 MRIO models were developed. Each MRIO model consists of the 40 largest economies of the world and the rest of the world (ROW) as the 41st country. Each country’s economy was structured into 35 manufacturing and service industries based on the Worth …

Using Offline Activities To Enhance Online Cybersecurity Education, Sarah Padlipsky

Master's Theses

Since the beginning of the 21st century, the United States has experienced the impact of a technological revolution. One effect of this technological revolution is the creation of entirely new careers related to the field of technology, including cybersecurity. Continued growth in the cybersecurity industry means a greater number of jobs will be created, adding to the existing number of jobs that are challenging an under-educated and under-trained workforce. The goal of this thesis is to increase the effectiveness of cybersecurity education. This thesis studies whether an online course in cybersecurity can be enhanced by offline, in-person activities that mirror …

Wheelie King Trainer And Controller, Michael C. Uytingco, Paul E. Hubner, Dmitriy Petrovykh

Mechanical Engineering

The ``wheelie'' is a popular, classic bicycle trick which novice bicyclists often attempt as an introduction to advanced bike tricks. However, many are hesitant to try due to the risks and safety hazards associated with performing one. The purpose of this project is to create an on-board system which will assist a user in maintaining a wheelie after achieving the required position while incorporating safety mechanisms to prevent the user from injuring themselves or others. Additional requirements of the system are non-obstructive features and seamless transitioning between wheelie conditions.

Upon researching the state of wheelie technology, existing products, such as …

Mobility Cart For Monoskiers, Bryce Petersen, Craig Miller, Aaron Kan, Tyler Meskin

Mechanical Engineering

This document represents the culmination of the senior design project of Team Monoski M.E. This project was in partnership with Disabled Sports Eastern Sierra (DSES), a volunteer-based, non-profit organization focused on providing people with disabilities opportunities to participate in outdoor activities. Our team was tasked with designing a device to help monoskiers at Mammoth Mountain load on and off the gondola with little to no assistance. Over the course of three quarters at Cal Poly, we designed, manufactured, and tested our mobility cart, consisting of a custom-made wheelchair with an integrated hydraulic lift.

Estimation Of Knee Kinematics Using Non-Monotonic Nanocomposite High-Deflection Strain Gauges, Adin Douglas Martineau

Theses and Dissertations

Human knee kinematics, especially during gait, are an important analysis tool. The current "gold standard" for kinematics measurement is a multi-camera, marker-based motion capture system with 3D position tracking. These systems are accurate but expensive and their use is limited to a confined laboratory environment. High deflection strain gauges (HDSG) are a novel class of sensors that have the potential to measure kinematics and can be inexpensive, low profile, and are not limited to measurements within a calibrated volume. However, many HDSG sensors can have a non-linear and non-monotonic response. This thesis explores using a nanocomposite HDSG sensor system for …

A Flexible Service-Oriented Approach To Address Hydroinformatic Challenges In Large-Scale Hydrologic Predictions, Michael Antonio Souffront Alcantara

Theses and Dissertations

Water security is defined as a combination of water for achieving our goals as a society, and an acceptable level of water-related risks. Hydrologic modeling can be used to predict streamflow and aid in the decision-making process with the goal of attaining water security. Developed countries usually have their own hydrologic models; however, developing countries often lack hydrologic models due to factors such as the maintenance, computational costs, and technical capacity needed to run models. A global streamflow prediction system (GSPS) would help decrease vulnerabilities in developing countries and fill gaps in areas where no local models exist by providing …

Design And Analysis Of A Single Stage, Traveling Wave, Thermoacoustic Engine For Bi-Directional Turbine Generator Integration, Mitchell Mcgaughy

All Theses

The demand for clean, sustainable, and cost-effective energy continues to increase due to global population growth and corresponding use of consumer products. Thermoacoustic technology potentially offers a sustainable and reliable solution to help address the continuing demand for electric power. A thermoacoustic device, operating on the principle of standing or traveling acoustic waves, can be designed as a heat pump or a prime mover system. The provision of heat to a thermoacoustic prime mover results in the generation of an acoustic wave that can be converted into electrical power.

Thermoacoustic devices offer highly reliable and transportable power generation with low …

Polymer Injection Forming: A New Age Technology For Manufacturing Polymer-Metal Hybrids, Saeed Farahani

All Dissertations

Due to global competition, manufacturing firms in high-wage countries must target innovation in production processes and technologies that allow the mass manufacturing of customized products through highly efficient processes. Motivated by the concept of the integrative production systems, hybrid process of polymer injection molding and sheet metal forming, known as polymer injection forming (PIF), has been introduced to manufacture sheet metal-polymer components using a single tooling, machinery, and operating system. During this process, the sheet metal blank inside the injection mold is deformed by means of tool movement and/or by pressure of the polymer melt. As the melt cools, the …

Chemically Active Rheological Modifiers For The Improved Clinical Use Of Cyanoacrylates, Kyle Joseph Garcia

All Dissertations

Over 100 million surgical incisions, 50 million traumatic wounds, and 20 million minor lacerations from cuts and grazes are treated globally each year. One study determined that globally internal and external wounds occur for 40% and 37% of cases respectively for a total of 111 million patients that were treated for wounds. The remaining 23% of patients were treated for minor lacerations and trauma in the emergency room. These wounds require immediate medical attention including pressure application, sutures, clips, tissue cautery, and/or topical hemostatic agents to cease hemorrhage or the exit of other bodily fluids. With blood flow ceased, wound …

Me-Em Enewsbrief, December 2018, Department Of Mechanical Engineering-Engineering Mechanics, Michigan Technological University

Department of Mechanical and Aerospace Engineering eNewsBrief

No abstract provided.

Fully Analog Laser Driver With Robust Active Feedback Control, John Petrilli

Graduate Theses and Dissertations

The objective of this project was to go through a real life engineering development cycle, document and justify the design choices, and use background experience in electronic design and control systems to implement the best design possible. The laser driver implemented in this project is designed for the general use of a large variety of diodes in continuous wave mode, much like off the shelf laser drivers. The design goals included improving upon off the shelf laser drivers by decreasing steady state error, setting time, response time, and overshoot. Many different feedback control systems were evaluated, and a modified PID …

Fogfly: A Traffic Light Optimization Solution Based On Fog Computing, Quang Tran Minh, Chanh Minh Tran, Tuan An Le, Binh Thai Nguyen, Triet Minh Tran, Rajesh Krishna Balan

Research Collection School Of Computing and Information Systems

This paper provides a fog-based approach to solving the traffic light optimization problem which utilizes the Adaptive Traffic Signal Control (ATSC) model. ATSC systems demand the ability to strictly reflect real-time traffic state. The proposed fog computing framework, namely FogFly, aligns with this requirement by its natures in location-awareness, low latency and affordability to the changes in traffic conditions. As traffic data is updated timely and processed at fog nodes deployed close to data sources (i.e., vehicles at intersections) traffic light cycles can be optimized efficiently while virtualized resources available at network edges are efficiently utilized. Evaluation results show that …

Finite Element Analysis Of Humerus With Impact At Distal End And The Mechanical Effect Of Bone Rehydration, Amy Gutierrez

Theses and Dissertations

Numerical modeling accuracy is dependent upon correct material property determination and input. This thesis demonstrates the importance in both numerical modeling and material characterization, two aspects of biomedical research that are intimately linked. The first study investigates the shear forces experienced on the humerus from a humeral impact on the distal end using 3D CAD model of a humerus and ANSYS for a finite element analysis. The humeral bone was analyzed with an impact on the distal end to signify falling on the elbow. A humeral model and a humeral model with a plate were both statically and dynamically simulated …

Low-Precision Linear Algebra For Neural Networks, Frost Bennion Mitchell

Undergraduate Honors Capstone Projects

Neural networks have been widely responsible for recent advances in machine learning, powering technologies such as digital assistants and AR photography. LPLANN (Low-Precision Linear Algebra for Neural Networks) is a cross-platform library written in C++ used for implementing neural networks. The software allows users to set specific levels of precision for calculations. Low-precision calculations use advanced parallelization techniques (SIMD, SWAR) to run neural networks at faster rates than full-precision calculations. This library is lightweight enough to run on embedded systems, only relies on OpenMP as a dependency, and is portable to any operating system. LPLANN also includes optimizations to provide …

Exponent: High Speed Cubesat Radio, Dana Sorensen

Undergraduate Honors Capstone Projects

Software Defined Radios (SDR) are limited by their usable bandwidth, which restricts how quickly they can transmit or receive data. The High Speed CubeSat Radio (HSCR) is capable of transmitting and receiving higher bandwidth signals by combining the bandwidths of several individual SDR transceivers. The HSCR performs phase correction to seamlessly stitch the bandwidths of each individual SDR into a single larger bandwidth.

By increasing the number of SDRs inside the HSCR, the bandwidth of the overall system will increase. This increase in bandwidth is limited only by the speed of the processing unit in working with received or transmitting …

Planar Linear Ion Traps With Microscale Radii For Portable Mass Spectrometry, Trevor Keith Decker

Theses and Dissertations

Radio frequency (RF) ion traps based on the quadrupole device developed by Paul and Steinwedel utilize a dynamic electric field to spatially confine the trajectory of charged particles and may be employed as mass spectrometers by selectively ejecting trapped molecules based on the mass to charge ratio. Because of the inherent sensitivity and specificity of this process, ion trap mass spectrometers have become a popular scientific instrument. In the past two decades there has been a push to develop portable ion trap mass spectrometers for in situ mass analysis by geometrically scaling traps to smaller sizes. This decreases the power …

5d Grain Boundary Characterization From Ebsd Microscopy, Akash Savio Amalaraj

Theses and Dissertations

Knowledge of the full 5-degree Grain Boundary Character Distribution (GBCD) is vital to understanding properties, such as gas diffusivity, that are dominated by grain boundary character. Surface characterization techniques, such as Electron Backscattered diffraction (EBSD), can provide only 4 of the 5 GB characteristics (the rotation between the neighboring grains, and the trace of the GB on the surface). The inclination of the GB in the direction normal to the surface is not known. A previous study indicated that the GB inclination could be recovered by correlating the Electron Backscattered patterns (EBSPs) of sample points near the GB with EBSPs …

Evaluation Of Comparative Damaging Effects Of Multiple Truck Axles For Flexible Pavements, Stefan Romanoschi, Athanassios Papagiannakis

Publications

This study aims at evaluating the effect of overlapping flexible pavement strain responses from truck axles that are not part of multiple axle configurations (i.e., tandem, triple and quad). For this purpose, a newly constructed pavement was instrumented with strain gauges installed at the bottom of the asphalt concrete base layer on US-287 south of Mansfield, TX. This pavement structure is typically used for medium- to high-volume roads in the South-Central region of the United States. The strain gauges were used to measure longitudinal and transverse strains under several passes of a test vehicle. This was a class 6 truck …

Coastal Bridges Under Hurricane Stresses Along The Texas And Louisiana Coast, Adolfo Matamoros, Firat Testik

Publications

The main objective of this study is to develop a high-resolution model capable of simulating the response of bridge structures to hydrodynamic loads for hurricane design conditions (i.e., surge height, wave height, and frequency) expected in the Texas-Louisiana coast. The model relied on Coupled Eulerian-Lagrangian (CEL) techniques where solids are simulated with Lagrangian meshes, while fluids are simulated using Eulerian meshes, and was calibrated using historical data from wave impact laboratory tests. Two high resolution models were created, the first of a tsunami wave impact test conducted at Oregon State University and the second of a bridge located in the …

Development Of A Self-Powered Structural Health Monitoring System For Transportation Infrastructure, Aydin Karsilaya, Samer Dessouky, Athanassios Papagiannakis

Publications

Roadways and bridges play an important role in the economic and social health of society by connecting commerce and people. Economic growth and population expansion pose considerable burden on the aging infrastructure (i.e., pavements and bridges). There is a pressing need to develop structural health monitoring (SHM) technologies capable of collecting infrastructure utilization data. Doing so inexpensively with self-powered systems will revolutionize infrastructure monitoring technology, and will improve decision making enabling roadway and bridge preservation. In this study, a self-powered battery-less structural health monitoring (SHM) system was developed. It is powered by a thermal energy harvester equipped with thermoelectric generators …

Mitigating Traffic Congestion On I-10 In Baton Rouge, La: Supply- And Demand-Oriented Strategies & Treatments, Samir Ahmed, Osama Osman, Julius Codjoe

Publications

The aim of this study is to develop a better understanding of the causes of traffic congestion on I-10 in the Baton Rouge, LA area, particularly at the I-10 Mississippi River Bridge, and to identify treatments and strategies to mitigate congestion at the bridge site. This study developed and calibrated a microsimulation model of I-10 (from Lobdell Highway in Port Allen to Highland Road, I-110 to Florida Street, and I-12 to Walker Road) and investigated several supply- and demand-oriented strategies. This includes: rehabilitation and utilization of the old Mississippi River Bridge on US-190 and the existing US-190/US-61 corridor, overall demand …

Recruiting, Retaining, And Promoting For Careers At Transportation Agencies, Christofer Harper, Susan Bogus, Raghava Kommalapati, Doeun Choe

Publications

State transportation agencies currently face complex challenges in recruiting and retaining the workforce necessary to function effectively. The situation exacerbates due to the number of employees from different generations that have to coexist with varying values, expectations, and principles. These agencies are primarily comprised of two generational groups: the baby-boomers, who are approaching retirement and occupy many managerial positions; and the millennials, who are demonstrating their interest in technology and demanding dynamism in their careers. This multiplicity of interest represents a challenge for human resources (HR) in addressing workforce issues and providing the necessary means to recruit and retain qualified …

Research Incentive Programs For Closures Of Public And Private Grade Crossings, Julius Codjoe

Publications

Vehicle-train crashes that occur at highway-rail crossings result in injuries, fatalities, and damage to equipment. In order to reduce the number of vehicle-train crashes, Federal Railroad Administration requires states which have challenges with crossing safety, including Louisiana, to develop a State Action Plan to improve grade crossing safety. Consequently, identification of specific solutions for improving safety at crossings was included in the 2015 Louisiana Transportation Plan as one of its objectives. This study seeks to identify and evaluate current and new incentive programs that encourage closure of at-grade railroad crossings to reduce the number of potential vehicle-train collision points, and …