Engineering Commons^™

Cubesat Adcs Validation And Testing Apparatus, Jacob Stevens

Honors Theses

The WALI team at Western Michigan University requested a test environment to validate their CubeSat’s de-tumbling control system and hardware. The test environment required a Helmholtz cage and spherical air bearing. The Helmholtz cage provides an adjustable magnetic field to simulate low earth orbit; the spherical air bearing simulates the friction free environment the CubeSat will experience in space. In conjunction, the two components create an adjustable system that simulates a satellite in low earth orbit.

I-94 Advanced Bridge Replacement, Saleem Alsharari

Honors Theses

The Michigan Department of Transportation has always felt the need of improving and increasing the capacity of the most critical highway in the state of Michigan, I-94. Part of the improvement plan is to increase the capacity of a 6-mile segment along a corridor of I-94 from French Avenue to Trumbull Avenue which is in a suburban neighborhood of Detroit. There are eight bridges built in the 1950’s that need to be re-constructed for a capacity increase. Vehicular and non-motorized traffic must be accounted for in the design of these bridges. The project is intended to increase the service life …

Attitude Determination Control Testing System (Helmholtz Cage And Air Bearing), Nicolas Theoret

Honors Theses

The WALI team at Western Michigan University requested a test environment to validate their CubeSat’s de-tumbling control system and hardware. The test environment required a Helmholtz cage and spherical air bearing. The Helmholtz cage provides an adjustable magnetic field to simulate low earth orbit; the spherical air bearing simulates the friction free environment the CubeSat will experience in space. In conjunction, the two components create an adjustable system that simulates a satellite in low earth orbit.

Total Bridge Replacement Of M-13 Over Cheboyganing Creek, Daniel Burns

Honors Theses

The Michigan Department of Transportation sought a proposal consisting of design and construction engineering services for the total bridge replacement of M-13 over Cheboyganing Creek. The M-13 Bridge Project is located on M-13 over Cheboyganing Creek on the Saginaw River in Portsmouth Township, Bay County, Michigan.

Several components of the existing bridge have been rated in poor or serious condition on the National Bridge Inventory rating scale. A total bridge replacement is required and aligns with MDOT strategies to address critical infrastructure needs in the state as well as the Bay Region's five-year plan for managing bridge and culvert infrastructure. …

Outsourcing Of Building Information Modeling (Bim) Among General Contractors In The United States, James W. Fountain

Honors Theses

Building Information Modeling (BIM) is a process used by AEC industry members that simulates a construction project in a multidimensional digital model and provides multitudes of project benefits from inception to occupancy. However, a variety of barriers impede a holistic BIM implementation. Because of these barriers, some general contractors are choosing to outsource the creation and/or utilization of BIM models to specialized Information Technology (IT) firms instead of performing these processes in-house. Since little literature currently exists for BIM outsourcing, this online survey-based study aimed to identify BIM outsourcing patterns among the general contractors across the US and the perceived …

An Application Programming Interface For Parliamentary Procedure, Grant David Bourque

Honors Theses

No abstract provided.

Determining Energy Output In Manual And Automated Solar Arrays, James K. Ayres

Honors Theses

The scope for the project was to design and construct a system that could be used to both manually and automatically track the sun using solar panels to demonstrate engineering principles for classroom and laboratory experiments at both the primary and secondary education levels. For ease of demonstration, a manual and automatic tracker was designed for the experiment. Using a standard camera tripod, the solar panels were attached to fabricated mounts to allow for omnidirectional movement. For the automated, or active tracker, an Ardunio Uno microcontroller was used in conjunction with two 180˚ servos to adjust the active tracker solar …

An Internet Of Things (Iot) Robotic Light Switch, Arsal Habib

Honors Theses

The purpose of this project was to design and build an Internet of Things (IoT) Robotic Light Switch. This light switch would act as a complementary device to existing toggle switches and equip them with typical smart device features such as remote control (via Wi-Fi), digital voice assistant control, motion-sensing and integration with other smart home solutions (such as IFTTT). All these features would be supported by a dedicated web page that would also be able to view the usage statistics of the device. This device is aimed at offering users an extremely easy-to-install home automation solution that needs no …

Gasoline Confined In Nano-Porous Media, Matthew Giso

Honors Theses

The heat of combustion was determined for gasoline confined in nano-porous media of differing pore size by bomb calorimetry. The heat of combustion of the confined fuels was comparable to that of bulk within the experimental uncertainty. This suggests that all of the confined fuel burns without any flame quenching and no chemical interactions at the interface between pore walls and fuel mitigate combustion.

A Graph Based Departmental Spoken Dialogue System, Julia Isaac

Honors Theses

Spoken dialogue systems are automatic, computer based systems that are a great way for people to receive important information. In this project, I created a spoken dialogue system that people can use to learn about the Computer Science Department at Union College. The system was built by populating an open source dialogue system using a graph based dialogue manager. I improved upon a previous working dialogue system by making the conversations sound more natural, improving the flexibility of the system and making the system more robust. To help with this process a corpus was created using about 200 different dialogues …

Control System For 3d Printable Robotic Hand, Htoo Wai Htet

Honors Theses

Humanoid robotics is a growing area of research due to its potential applications in orthosis and prosthesis for human beings. With the currently available technologies, the most advanced robotic hands used in prosthetics or robotics can cost from $11,000 to $90,000, making it inaccessible to the general population of amputees and robotics hobbyists. Most of the features provided by these expensive technologies are superfluous to many users, creating a great gap in cost and services between users and technology. Using the emerging 3D printing technology, my project is to construct a 3D printed robotic hand that can reproduce as many …

Atomic Force Microscopy Of Poly(Ethylane-Oxide) Crystalization, Xavier Capaldi

Honors Theses

Polymer crystallization is a complex process which is influenced by a variety of factors. Atomic force microscopy is used to explore the material properties of polymer crystals. Poly(ethylene-oxide) is used in a variety of molecular weights as the sample. In addition, a variety of sample preparation methods and microscopy modes were tested. A relatively new imaging technique was identified for the characterization of polymer crystals: amplitude modulation-frequency modulation viscoelastic mapping. This mode was used to measure material properties such as stiffness and dissipation.

Heat Of Fusion Of Primary Alcohol Confined In Nanopores, Harrisonn Griffin

Honors Theses

Melting behavior of physically confined 1-decanol in nano porous silica was probed using a Differential Scanning Calorimeter (DSC). In agreement with the Gibbs-Thomson prediction, we observe that the melting temperature of the confined 1-decanol scales inversely with the physical size of the pores. Contrary to the assumption used in developing the Gibbs-Thomson equation, however, the apparent heat of fusion decreases as the pore size decreases. Previously, several models have been proposed where interfacial layers of molecules do not participate in the phase transition and thereby would not contribute to the heat of fusion. While these could reconcile the seeming contradiction, …

The Evolution Dynamics And Trends Of The Content Of Chinese Exports From 1995-2011, Megan Kerbs

Honors Theses

There is no question that China’s role in the international economy has grown over time, as it seems to be claiming more and more of center stage in the global arena. Back in the early 1990’s, the phenomenon of globalization enabled China to expand its reach, inserting itself into intricate production hierarchies that began to define the global marketplace. China experienced a massive export boom in 2000, and since, has evolved to become a highly sophisticated, high-tech country that now plays an integral role within not only the East Asian region, but also the rest of the world. This thesis …

Material Evaluation Of A Lightweight, Automated Canned Pet Food Dispenser, Kathryn Marie Carr

Honors Theses

No abstract provided.

Pentaerythritol Triacrylate-Co-Trimethylolpropane Nanocomposite Scaffolds As Osteogenic Components For Bone Tissue Engineering, Mollie Marie Smoak

Honors Theses

No abstract provided.

Automated Data Acquisition Of Deet Time-Dependent Concentration Profiles, Ryan D. Coleman

Honors Theses

Spatial insect repellents must maintain a sufficient concentration in the vapor phase to successfully deter pests. However, little is known regarding correlation of concentration to efficacy nor does there exist a standard testing protocol to measure efficacy in air. Among existing spatial repellents, DEET is the most common active ingredient. This research focuses on application of sensor-based technologies to monitor the concentration levels of DEET under static conditions.

Metal oxide semiconductor sensors feature conductivity variance in response to absorption and desorption of volatile organic compounds. Advantages of these sensors include cost, versatility, and sensitivity. Metal oxide semiconductor sensors were chosen …

Synthesis Of Acceptors For Use In Donor-Acceptor Copolymers And Characterization Of These Polymers, William D. Walker

Honors Theses

In this thesis, a selenium-derivatized acceptor was synthesized to examine the heavy atom effects of selenium on the position of the frontier molecular orbitals (HOMO/LUMO band gap) as opposed to sulfur in a donor-acceptor copolymer for use in light harvesting and detection applications. Over the course of this research, standard operating protocols for ultraviolet-visible (UV-Vis-NIR) and Fourier transform infrared (FT-IR) spectroscopies, as well as cyclic voltammetry (CV) characterization techniques were established. Once synthesized, the polymers were characterized through use of the established characterization protocols. The selenium-derivatized polymer exhibited a bathochromic shift compared to the sulfur analogue, with a solid-state absorption …

The Effect Of Cure Rate On Glassy Polymer Networks, Kristen M. Van De Voorde

Honors Theses

The formation of glassy polymer networks such as epoxy-amine systems may be altered by varying the temperature ramp rate that is used to cure the system. As a result, the physical and mechanical properties of the network may be changed. This work synthesized the epoxy resins diglycidyl ether of bisphenol A (DGEBA) with the amine curing agent 4,4-diaminodiphenyl sulfone (4,4’-DDS) from 35°C to 180°C using varying temperature ramp rates. Mechanical and structural properties of these samples were then analyzed to determine the effect the different temperature ramp rates had on the formation and properties of the thermoset matrix. These aspects …

Wireless Voice Amplification Device For Weak Patients, Daniel Alexander Johnson

Honors Theses

Abstract – One problem that nurses and doctors face when treating a very weak patient is difficulty of communication. Sometimes patients become so weak that they are barely able to speak above a whisper without completely exerting themselves. Often nurses will have to put their ear directly in front of a patient’s mouth in order to hear what the patient is saying over the ambient noise in a hospital room. This becomes an even bigger problem when several patients are together in a single room and the ambient noise levels rise. One way to solve this problem would be to …

Extended Gamut Printing In Flexographic Packaging And The Impact Of Brand Management, Andrew Bogan

Honors Theses

Flexography is the dominant print process in regards to the reproduction of packaging products. Packaging, particular the color and graphics, is an essential tangible element for brand owners striving for brand management. Extended gamut printing is a printing technique that can produce high color saturations on packaging samples, which can have positive implications for brand management. Currently, most information on extended gamut printing is proprietary, making it very difficult for non-print industry members to obtain and utilize information relating to the benefits of extended gamut printing. The aim of this study was to provide evidence that packaging samples with extended …

The Comparison Of Effectiveness Between Print Media & Electronic Media In Terms Of Promotion And Recruitment, Katherine Dayton

Honors Theses

This research project’s objective was to determine whether print media such as brochures and booklets are more or less effective than electronic media such as e-mails and webpage advertisements in attracting consumers. A special interest was taken in higher education recruitment and the research was completed by advertising to high school students who are in the process of choosing a school for their higher education experience. The research featured an advertising campaign launched through both print and electronic platforms, directing the consumers to an online survey they were able to take to provide feedback about the experience. This project led …

Least Cost Analysis For Solar Photovoltaic Maintenance Of The Wmu Miller Auditorium Array, Kelsey Pitschel

Honors Theses

The solar photovoltaic array at Miller Auditorium is a 50 kW DC system that has relied on five seasonal angle adjustments and no cleaning measures to reach an average of 64.7 MWh annual energy generation since 2012 1 . This amount of energy generation yields $7,046 in annual energy savings based on current market pricing for end use electricity of $0.1089/kWh 2 . The current adjustment schedule based on seasonal tilts accounts for an annual costs between $760 and $848, but actual adjustments have historically not taken place according to the existing schedule. The analysis focuses on optimizing net energy …

Solar Tracking And Lighting Design For A Multimedia Sculpture, Alexandra Ferguson

Honors Theses

A lighting system utilizing solar energy was built to illuminate a wireframe multimedia sculpture. Increased power generation from the solar cells was achieved using a solar tracking mechanism. Color-selectable light emitting diodes were used to provide the user with unlimited customization options. A digital control system was designed using an Arduino® microcontroller to configure the color of the lights and the positioning of the solar panel. The sculpture will create a sense of community and sustainability among students at the school.

Designing An Accessible Hall Effect Thruster, Matthew Baird

Honors Theses

A group of three Mechanical Engineering students have selected to design a 200 W Hall Effect Thruster to fulfill the Mechanical and Aeronautical Engineering senior design project. Preliminary studies were performed on the theory behind electric propulsion and plasma physics. The group designed the Western Hall Thruster and used COMSOL Multiphysics® simulation software to refine the magnetic circuit. The group then fabricated and performed magnetic testing of their thruster in Western Michigan University’s Aerospace Laboratory for Plasma Experiments. This testing will seek to prove that a standard research HET can be built by universities without substantial financial resources.

Human-Assisted Fluid Power Vehicle, Aaron Huntoon

Honors Theses

The rising cost of energy has prompted industrial and technology companies to research and implement renewable or green energy sources in every aspect of their business. This green technology can consist of sources such as: solar, wind, fluid, or others to create energy from renewable sources. The use of these various sources reduces the pollution associated with standard methods of energy development, and it will ultimately drive costs down to benefit the general population. One of the largest benefactors to the use of renewable energy sources is the transportation industry. Billions of people rely on various modes of transportation every …

Modeling Product Cooling For Baked And Snack Crackers, Jenna Hagenloch

Honors Theses

The cooling of snack crackers, after the baking process is an important step prior to packaging. A model was developed for cooling the crackers. The model allows for the adjustment of multiple operating conditions, such as temperature, depth of the crackers, and the speed of the line. The completed model provides the user with the ability to predict cooling requirements and to validate pre-existing equipment operating conditions. The model will aid in the design of new equipment as well as modifications to improve existing installations to operate within the desired specifications for each process.

The United States Aviation Industry And The Professional Pilot Training Environment, Andrew Marvin

Honors Theses

This study provides background and analysis of the legislation enacted following the crash of Colgan Air 3407, and the impact that the more stringent qualifications have had on aspiring professional pilots. Participants in the study include professional pilots and aspiring professional pilots, governmental law-making agencies such as the United States (U.S.) Congress and the Federal Aviation Administration (FAA), major and regional airlines, and collegiate flight training programs. The study drew from the National Transportation Safety Board investigation (NTSB) of Colgan Air 3407, federal regulations regarding pilot training and certification standards, and current airline hiring and training programs.

Findings of this …

Desolventizer Toaster Design Evaluation For Maintenance Reliability, Stephanie Kilbourn

Honors Theses

No abstract available.

An Analysis Of Preflight Inspection Practices In The Collegiate Training Environment, Seth Laws

Honors Theses

Preflight inspections are a crucial part of flight operations and are required by the Federal Aviation Administration prior to flight. A properly performed preflight by an educated and experienced pilot follows a standard procedure and permits detection of conditions that render an aircraft un-airworthy. A study at Western Michigan University was conducted to determine the effectiveness of this normal procedure in the collegiate training environment. Results indicate the standard procedures for preflight inspections and good supporting habits are in place, but some complacency and a lack of understanding of the standard procedure prevents it from being totally effective among less …