Engineering Commons^™

Mlatticeabc: Generic Lattice Constant Prediction Of Crystal Materials Using Machine Learning, Yuxin Li, Wenhui Yang, Rongzhi Dong, Jianjun Hu

Faculty Publications

Lattice constants such as unit cell edge lengths and plane angles are important parameters of the periodic structures of crystal materials. Predicting crystal lattice constants has wide applications in crystal structure prediction and materials property prediction. Previous work has used machine learning models such as neural networks and support vector machines combined with composition features for lattice constant prediction and has achieved a maximum performance for cubic structures with an average coefficient of determination (R2) of 0.82. Other models tailored for special materials family of a fixed form such as ABX3 perovskites can achieve much higher performance due …

Theory And Application Of Dielectric Rod Antennas And Arrays, Gabriel Saffold

USF Tampa Graduate Theses and Dissertations

Dielectric rods have been used for many years as waveguides and radiators. Their low loss as a transmission line and tendency to radiate at discontinuities have proven useful in applications ranging from fiber optic cables to naval fire control radar. Although this technology is well es- tablished, advances in additive manufacturing techniques and associated materials combined with the ubiquity of wireless communications and their shift to higher frequencies have generated re- newed interest in dielectric rods. Dielectric rod antennas have moderate gain and less conductive loss at higher frequencies. Similar to other surface wave antennas, they can achieve broadband performance.This …

Student Academic Conference, Caitlin Brooks

Student Academic Conference

No abstract provided.

Modeling Tools For Analyzing Electrical Power Distribution Systems Impacted By Electric Vehicle Load Growth, Jacob Sheeran

Dissertations and Theses

Growing Electric Vehicle penetration presents unwanted problems to grid reliability. For nearly every EV there is corresponding household charging. High penetration of Electric Vehicle Service Equipment can lead to over loading of assets and under voltage conditions. In order to understand the effects EV have on a distribution system, studies have to be done for EVSE to understand how the distribution system is affected. Using advanced Power Engineering Simulation Software is often the best way to model systems due to the credibility of their software modules. For this thesis, I developed a suite of distribution system analysis tools using CYME …

Evaluation Of State-Of-The-Art Nlp Deep Learning Architectures On Commonsense Reasoning Task, Guo Rui (Justin) Lee

Honors Theses

The goal of this project was to explore modern neural network technology in the application of discerning and generating statements that are ‘reasonable’, in what is known as commonsense reasoning. We built off of the work of Saeedi et al. In their work on the 2020 SemEval task, Commonsense Validation and Explanation (ComVE). SemEval is a workshop that creates a variety of semantic evaluation tasks to examine the state of the art in the practical application of natural language processing. This particular task involved three sections: task A, Validation, in which a program tries to select which of two statements …

Installation Press For Heat Set Inserts, Maxwell Warren

Honors Theses

3D printing has evolved from a slow, laborious process in the 1980s’s to a cutting- edge technology that is being used in industries such as aerospace and medical. Though the technology is relatively new in comparison to CNC machines and other items found in a typical machine shop, additive manufacturing is growing towards a multibillion-dollar industry. For this reason, many industries are turning to 3D printing for research and development tasking as well as just using it to supplement for parts until they have been manufactured through more traditional means. The downside of 3D printing is that it is commonly …

A Novel Jumbo Phage Phima05 Inhibits Harmful Microcystis Sp., Ampapan Naknaen, Oramas Suttinun, Komwit Surachat, Eakalak Khan, Rattanaruji Pomwised

Civil and Environmental Engineering and Construction Faculty Research

Microcystis poses a concern because of its potential contribution to eutrophication and production of microcystins (MCs). Phage treatment has been proposed as a novel biocontrol method for Microcystis. Here, we isolated a lytic cyanophage named PhiMa05 with high efficiency against MCs-producing Microcystis strains. Its burst size was large, with approximately 127 phage particles/infected cell, a short latent period (1 day), and high stability to broad salinity, pH and temperature ranges. The PhiMa05 structure was composed of an icosahedral capsid (100 nm) and tail (120 nm), suggesting that the PhiMa05 belongs to the Myoviridae family. PhiMa05 inhibited both planktonic and aggregated …

Optimum Double Rhombic Flap Design For Z-Plasty, Abdullah Khan

Honors Theses

In the medical field, especially in plastic surgery, Rhombic flap and z-plasty are common methods in surgical procedures to treat and close complex wounds of different types of injuries/surgery. Each conventional surgical method has its own pros and cons. When both conventional methods join, it would complement each other weaknesses. This senior design project purpose is to investigate the magnitude of stresses build on skin due to transposing of skin in these methods when the wound is close after the surgical procedure is done. In this project a combination of rhombic flap and z-plasty is studied which is Double Rhombic …

Long Duration Venus Lander, Aidan Wales

Honors Theses

Venus continues to be a target of interest for the scientific community, as the similarities and differences to Earth pose intriguing questions about planetary evolution. The National Aeronautics and Space Administration (NASA) is looking to gain a better understanding of Earth’s sister planet and has presented a challenge to interested undergraduate student teams to develop a in-situ robotic explorer and accompanying relay. The student team representing Western Michigan University has designed a long-term Venusian lander to both survive the harsh environment for an extended period and gather scientific data on the planet’s atmosphere and surface to be communicated back to …

Automated Form-Fill-Seal Loader, Amara Crosby

Honors Theses

Keystone Solutions Group requires a space, money, and time saving machine that can automatically load swabs and other similar sized devices into a new Multivac R245 form-fill-seal machine. Currently, Multivac “auto-loaders” are very costly and take up a great deal of space. A portable, easy-to-mount, automated swab loader was designed and initially prototyped. This design can be moved throughout the cleanroom with current material handling devices and contains enough storage to run continuously for upwards of a half an hour.

Long-Term Venus Lander, Scott Miller

Honors Theses

Venus continues to be a target of interest for the scientific community, as the similarities and differences to Earth pose intriguing questions about planetary evolution. The National Aeronautics and Space Administration (NASA) is looking to gain a better understanding of Earth’s sister planet and has presented a challenge to interested undergraduate student teams to develop a in-situ robotic explorer and accompanying relay. The student team representing Western Michigan University has designed a long-term Venusian lander to both survive the harsh environment for an extended period and gather scientific data on the planet’s atmosphere and surface to be communicated back to …

Medical Service Facility Site Development, Sabrina Carvajal

Honors Theses

This report provides a clear description of a site development design project for a future medical service facility. The site is approximately 46,818 square feet and is located at 203 E. Centre Avenue Portage, Michigan 49002 United States. This is in a high traffic area that is surrounded by different public and academic institutions including Portage Central High School and Portage Public Library. The commercial buildings surrounding this area are Comerica Bank, Dairy Queen and a new Senior Center currently under construction. Our team is proposing two different site-layout options for the future development of this building. This medical service …

Autonomous Vehicle Camera Mount Application, Yuan Sheng Sit

Honors Theses

Autonomous vehicles consist of many complex systems, an extensive set of hardware components, and various computing algorithms that constantly work in harmony to provide selfdriving capabilities to a vehicle. This project focuses on developing a universal mount for a ZED 2 stereo camera used in data collection for autonomous driving applications. The main purpose of the mount is to reduce dashboard, windshield, and lens glare that affect the quality of data collection for autonomous driving applications. Software such as Ansys and SOLIDWORKS are used to simulate stress, strain, and thermal distributions on the mount to better understand the strong and …

Hinging, Propping, And Latching Mechanisms For Sunseeker Solar Car, Zachary Ruppenthal

Honors Theses

In this project, designs for the hinging, propping, and latching mechanisms on the 2021 Sunseeker Solar Car were created. These designs allow for the car’s array of solar panels to be held at any desired angle to maximize collection of solar power and give the team access to the battery and driver compartment. Removable telescoping prop rods with pin attachments are used to set the array at a desired angle. The hinging mechanism allows for the array to be lifted vertically prior to rotation in order to avoid interference with the car’s roll cage. To accomplish this, two four-bar linkages …

Long-Duration Venus Explorer, Ethan Reid

Honors Theses

Venus continues to be a target of interest for the scientific community, as the similarities and differences to Earth pose intriguing questions about planetary evolution. The National Aeronautics and Space Administration (NASA) is looking to gain a better understanding of Earth’s sister planet and has presented a challenge to interested undergraduate student teams to develop a in-situ robotic explorer and accompanying relay. The student team representing Western Michigan University has designed a long-term Venusian lander to both survive the harsh environment for an extended period and gather scientific data on the planet’s atmosphere and surface to be communicated back to …

Charge Tracing For Determining Electrical Facility Effects On Electric Spacecraft Propulsion Systems., Joseph Backe

Honors Theses

Electric Propulsion Systems are the future of deep space travel. Since its design in 2016 Western Michigan University has been testing a Hall-Thruster from a previous Senior Design Group. One issue with Electric Propulsion Systems is tracing where the electrons go after being used to ionize propellant for spacecraft acceleration. Induced magnetic fields on Earth alter the electron paths found in the vacuum of space.

One solution is the EP TEMPEST. The EP TEMPEST is an electron tracer designed by the Air Force Research Laboratory. The goal of this project is to design an electron tracer like the EP TEMPEST …

Design Of A Full-Scale Plant For Plastic Pyrolysis, Hannah Sargent

Honors Theses

With over thirty million tons of plastic accumulating in the United States every year, the need for an environmentally safe means of disposal is increasing. Only ten percent of this plastic is recycled while the majority is disposed of via landfill. With recent advances in pyrolysis research, a permanent solution is presented. By creating a pyrolysis plant, not only could billions of pounds of plastic be prevented from contributing to landfills, but also be converted to oil resulting in an environmentally beneficial and lucrative solution to plastic waste.

Velocity Electric Mobility Platform, Austin Gilbert

Honors Theses

The purpose of this project is to develop an IOT connected micro mobility platform to be used in electric personal transportation devices such as scooters and longboards. This initial platform will be used as a starting off point for Velocity Research to continue with future development.

The first main requirement of the design is that it must be able to control two independent three phase brushless DC motors using field oriented control. These motors must be controlled based on input from the user via a handheld remote control. The second main requirement is that the device must also send and …

Effects Of Acetylene Addition To The Fuel Stream On Soot Formation And Flame Properties In An Axisymmetric Laminar Coflow Ethylene/Air Diffusion Flame, Xinrong Xie, Shu Zheng, Ran Sui, Zixue Luo, Shi Liu, Jean Louis Consalvi

Mechanical and Aerospace Engineering Faculty Research & Creative Works

The effects of adding acetylene to the fuel stream on soot formation and flame properties were investigated numerically in a laminar axisymmetric coflow ethylene/air diffusion flame using the open-source flame code Co-Flame in conjunction with an elementary gas-phase chemistry scheme and detailed transport and thermodynamic database. Radiation heat transfer of the radiating gases (H2O, C2H2, CO, and CO2) and soot was calculated using a statistical narrow-band correlated-k-based wide band model coupled with the discrete-ordinates method. The soot formation was described by the consecutive steps of soot nucleation, surface growth of soot particles via polycyclic aromatic hydrocarbons (PAHs)-soot condensation or the …

Digital Signal Processing Algorithms Implemented On Graphics Processing Units And Software Development For Phased Array Receiver Systems, Mark William Ruzindana

Theses and Dissertations

Phased array receivers are a set of antenna elements that are capable of forming multiple simultaneous beams over a field of view. In radio astronomy, the study of deep space radio sources, a phased array feed (PAF) is placed at the focus of a large dish telescope that spatially samples the focal plane. PAFs provide an increase in the field of view as compared to the traditional single pixel horn feed, thereby increasing survey speed while maintaining low sensitivity. Phased arrays are also capable of radio frequency interference (RFI) mitigation which is useful in both radio astronomy and wireless communications …

Heuristics For Capacity Allocation And Queue Assignment In Congested Service Systems With Stochastic Customer Demand And Immobile Servers, Adam Colley

Operations Research and Engineering Management

We propose easy-to-implement heuristics for a problem referred to in the literature as the facility location problem with immobile servers, stochastic demand, and congestion, or the service system design problem. The problem is typically posed as one of allocating capacity to a set of M/M/1 queues to which customers with stochastic demand are assigned with the objective of minimizing a cost function composed of a fixed capacity-acquisition cost, a variable customer-assignment cost, and an expected-waiting-time cost. The expected-waiting-time cost results in a non-linear term in the objective function of the standard binary programming formulation of the problem. Thus, the solution …

Mechanical Engineering News, Georgia Southern University

Mechanical Engineering: News & Publications (2013-2023)

• Graduate Student Wins Excellence in Graduate Research Award

Nze Residential Test Facility Analysis Throughout Summer/Winter Peak Months For Thermal Comfort Prediction, Yearim Yang

Honors College Theses

The present study evaluates the thermal comfort in the east bedroom of the Net-Zero Energy Residential Test Facility (NZERTF) in a mixed-humid climate. This unit was constructed by the National Institute of Standards and Technology for scholars to analyze its energy performance and indoor environmental quality. The thermal comfort is investigated in a designated bedroom space by analyzing 27 dry-bulb temperature, 4 airspeed, 6 globe temperature, and 6 relative humidity sensors in a 3x3x3 array and a center sensor stand during two opposite seasonal months (July and December). The conventionally ducted heat pump, small duct high velocity, and heat recovery …

Cognitive Digital Twins For Smart Manufacturing, Muhammad Intizar Ali, Pankesh Patel, John G. Breslin, Ramy Harik, Amit Sheth

Publications

Smart manufacturing or Industry 4.0, a trend initiated a decade ago, aims to revolutionize traditional manufacturing using technology-driven approaches. Modern digital technologies such as the Industrial Internet of Things (IIoT), Big Data Analytics, Augmented/Virtual Reality, and Artificial Intelligence (AI) are the key enablers of new smart manufacturing approaches. The digital twin is an emerging concept whereby a digital replica can be built of any physical object. Digital twins are becoming mainstream; many organizations have started to rely on digital twins to monitor, analyze, and simulate physical assets and processes. The current use of digital twins for smart manufacturing is largely …

Melamine Derivatives As Highly Flame Retardant Additives For Bio-Based Rigid Polyurethane Foams, Niloofar Arastehnejad

Electronic Theses & Dissertations

MELAMINE DERIVATIVES AS HIGHLY FLAME RETARDANT ADDITIVES FOR BIO-BASED RIGID POLYURETHANE FOAMS

Rigid foams, which are mainly used in construction, refrigerators, automotive industries are one of the important types of polyurethanes with great potential in insulation and energy efficiency. Unfortunately, rigid polyurethane foams are highly flammable and catch fire in a short amount of time as well as spread the flame quickly. Hence, rigid foams are considered hazardous materials due to life-threatening situations and environmental issues.

To counter that, nitrogen-based compounds as non-halogenated flame retardants are an effective, low-cost, and eco-friendly option. It has been shown that melamine derivates as …

High In-Plane Thermal Conductivity Of Aluminum Nitride Thin Films, Md Shafkat Bin Hoque, Yee Rui Koh, Jeffrey L. Braun, Abdullah Mamun, Zeyu Liu, Kenny Huynh, Micheal E. Liao, Kamal Hussain, Zhe Cheng, Eric R. Hoglund, David H. Olson, John A. Tomko, Kiumars Aryana, Roisul Galib, John T. Gaskins, Mirza Mohammad Mahbube Elahi, Zayd C. Leseman, James M. Howe, Tengfei Luo, Samuel Graham, Mark S. Goorsky, Asif Khan, Patrick E. Hopkins

Faculty Publications

High thermal conductivity materials show promise for thermal mitigation and heat removal in devices. However, shrinking the length scales of these materials often leads to significant reductions in thermal conductivities, thus invalidating their applicability to functional devices. In this work, we report on high in-plane thermal conductivities of 3.05, 3.75, and 6 μm thick aluminum nitride (AlN) films measured via steady-state thermoreflectance. At room temperature, the AlN films possess an in-plane thermal conductivity of ∼260 ± 40 W m–1 K–1, one of the highest reported to date for any thin film material of equivalent thickness. At low temperatures, the in-plane …

Cold In-Place Recycling Asphalt Mixtures: Laboratory Performance And Preliminary M-E Design Analysis, Dongzhao Jin, Dongdong Ge, Siyu Chen, Tiankai Che, Hongfu Liu, Lance Malburg, Zhanping You

Michigan Tech Publications, Part 1

Cold in-place recycling (CIR) asphalt mixtures are an attractive eco-friendly method for rehabilitating asphalt pavement. However, the on-site CIR asphalt mixture generally has a high air void because of the moisture content during construction, and the moisture susceptibility is vital for estimating the road service life. Therefore, the main purpose of this research is to characterize the effect of moisture on the high-temperature and low-temperature performance of a CIR asphalt mixture to predict CIR pavement distress based on a mechanistic–empirical (M-E) pavement de-sign. Moisture conditioning was simulated by the moisture-induced stress tester (MIST). The moisture susceptibility performance of the CIR …

Growth And Characterization Of Molecular Ferroelectric Thin Films, Yifan Yuan

Department of Mechanical and Materials Engineering: Dissertations, Theses, and Student Research

Compared with inorganic ferroelectrics, organic ferroelectrics have advantages of low cost and low toxicity, are in increasing demand in capacitors, piezoelectric, and memory devices to reduce the environmental load. This work focuses on two types of organic molecular ferroelectric materials, croconic acid (CA) and 2-methylbenzimidazole (MBI). The work here introduces several origins of ferroelectricity in typical organics and their switching mechanism. We then investigated the nucleation, growth, and ferroelectric measurements of CA thin films. We explored the effect of substrate temperature and an external electric field on the nucleation and growth processes. The results can be used to improve the …

Virtual Learning On Swayam Platform By Engineering And Technology Students During Covid-19: An Analysis, Suryakanta Jena, Puspanjali Jena Prof.(Dr)

Library Philosophy and Practice (e-journal)

Democratization of education has formed the base for open and free education. The movement of Open Education is gaining its impetus through the emerging trends of new educational technologies. In the context of OER (Open Education Resource), the Massive Open Online Courses (MOOCs) concept is providing a framework for virtual classroom and collaborative learning. ‘Study Webs of Active Learning for Young Aspiring Minds’ (SWAYAM), as an Indian MOOC, has been providing several courses in various disciplines. The present study tries to analyse the courses in engineering and technology category on SWAYAM during the COVID-19 situation. The present study has critically …

Preliminary Analysis For A Campus-Wide Energy Prediction Strategy At Liberty University, Bethany Matsick, Hector Medina

Liberty University Research Week

Graduate

Three Minute Thesis