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Welcome to the 2017 UMaine Student Symposium: Research and Creative Activity electronic event program. This electronic program includes student abstracts, student presentation style descriptions, and presentation schedules. It also includes a map of the venue layout, schedule of the entire day’s events and programs, as well as details and information regarding our sponsors and selected university programs.

We hope you enjoy a full day of student presentations, guest speakers, award ceremonies, and the chance to network with UMaine students, faculty, staff, as well as local and state industry and community leaders! 
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Monday, April 24 • 10:45am - 12:00pm
Exhibits/Performances – Engineering

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avatar for Philip Bean

Philip Bean

Mechanical Engineering, 10:45AM-12:00PM
Modeling and Simulation of the Thermoforming Process in Thermoplastic Composite Materials Thermoplastic-matrix composite materials have unique advantages including faster processing, improved fracture-toughness, and recyclability. These and other benefits have caused increasing interest in the use of these materials in both aerospace and automotive industries. Due to the differences in behavior, these materials require a different type of manufacturing process to thermoset--matrix composites. This manufacturing process generally involves using pre-manufactured tape-layers. These layers, containing both thermoplastic-matrix and fiber-reinforcement, are aligned to the desired orientation, stacked up, they are then heated to the thermoplastic melting temperature in an oven and stamped to shape using a large press. Due to some complex behaviors in processing, however, it is necessary to simulate the forming process prior to manufacturing. Simulation can help to avoid costly trial-and-error type process tuning in order to avoid manufacturing defects. A research effort has been undertaken in order to streamline the process of material characterization toward simulation using commercially available software. This includes a variety of material tests, as well as forming tests in order to compare simulated results, such as predicted wrinkles and fiber reorientations in complex-shaped parts, to real parts manufactured under the same conditions as the simulations. | | Faculty Mentor: Roberto... Read More →

Shawn Brackett

Engineering Physics, 10:45AM-12:00PM
Integrated Environment & Proximity Sensing for UAV Applications | | As the realm of drone applications expand new methods for sensing, navigating and avoiding obstacles need to be developed. The project applies an Extended Kalman Filter to a simulated quadcopter vehicle though Matlab in order to estimate not only the vehicle state but the world state around the vehicle. The EKF takes in multiple sensor readings from range sensors, IMU sensors, and radiation sensors and combines this information to optimize state estimates. The result is an estimated world map to be used in vehicle navigation and obstacle avoidance. | The simulation handles the physics behind the vehicle flight. We know as a result of the motors there will be two primary forces acting on the vehicle, thrust and drag. These forces provide linear and rotational accelerations. These values can be integrated to determine vehicle flight path. This process determines the actual values of the vehicle state. Coupled into the integration process is the ability to tweak how fast the motors spin. Using this, A controller is built in to the vehicle such that desired vehicle states (position, velocity, and orientation) can be achieved. Additionally, sensing methods are simulated following known detection procedures and statistics to provide as accurate sensing models as possible. | The Extended Kalman Filter is used here due to some non-linear components of the estimation model. The estimation model includes the states for the vehicle, nearby world objects, nearby radiation measurements. By combining IMU and GPS data with additional measurement data for an EKF, an estimation method attempts to combine all three... Read More →

William Breeding

Bioengineering, 9:15AM-10:30AM, 10:45 AM-12:00PM, 1:00PM-2:15PM
Photocatalysis of Atrazine by various Bismuth Oxyhalides: Rates, Mechanisms and Byproducts (Section F Poster 22, 1:00PM-2:15PM) | | Atrazine has been found to be one of the most prevalent pollutant in worldwide water systems. Typically a result of herbicide runoff, the harmful environmental impacts of the compound cause novel methods of treatment to gain interest, such as photocatalysis. Photocatalysis involves the addition of a catalyst and light source for enhanced degradation of pollutants, and offers an efficient method for atrazine treatment in water. Bismuth oxyhalides (BiOX) have previously been investigated by the Patterson Research Group as catalysts for the degradation of atrazine, as results have shown comparable degradation rates to EPA photocatalytic standards. BiOX compounds will be doped with various nonmetals in attempt to enhance photocatalytic activity. The goal of this project is to assess various BiOX based... Read More →

Joel Castro

Electrical and Computer Engineering, 10:45AM-12:00PM
Analysis of Wireless Leak Detection Aboard International Space Station | | Micrometeoriod and orbital debris (MMOD) impact is a constant and serious threat to space travel. MMOD travel at speeds fast enough to vaporize material on impact and even generate plasma. This leads to structural damage and more notably leaks - a serious issue for habitats in the vacuum of space or other extreme environments. Currently, leaks are detected when air pressure is dropped (too late) and localized by handheld tools (too tedious) in manual inspections. To ensure safety of the inhabitants, a faster, more sophisticated, and preferably automated method of leak detection is needed. A system to localize leaks using ultrasonic profiles and Bayesian inference algorithms was designed to address these needs. Prototype devices of this system were built, flight certified, and transported to the International Space Station (ISS) for in situ testing. During this test, the devices were placed in locations likely to naturally produce leaks in an attempt to verify the leak localization functions and to get a general profile of the acoustics present in the ISS. After a set of test runs, data from said runs were transmitted to ground for analysis. This analysis is the focus of this current work. Analysis methods include looking at the final location estimates, the spectrum of noise, and comparisons to previous tests including a set of tests done at the mockup of the ISS located in Houston, TX. | | Faculty Mentor: Ali... Read More →
avatar for Jason Dignan

Jason Dignan

New Media, 9:15AM-10:30AM, 10:45 AM-12:00PM
Stewart Motion Platform Redesign (Table 15 Side R, 10:45 AM-12:00PM) | | The University of Maine Virtual Environment and Multimodal Interaction Laboratory (VEMI Lab) houses a currently offline Stewart Motion Platform (SMP). The SMP is a synergistic parallel robot with six axes of movement. The platform is controlled with an Arduino Mega, which in turn is controlled by a PC computer using Python script and a Joystick. Repeated operating system updates over time have rendered the joystick drivers unusable, which in turn have affected the Python script. The proposed project consists in migrating the hardware to a new, durable format, involving reassembly of the control interfaces, and reprogramming. The setup will be reverse engineered and reassembled using 3D printing technologies, forming single-piece, solid, hardwired connections requiring no further modifications to conform to changing standards in computers. Specifically, platform-to-Arduino connections will be replaced with Cat5 cabling and connectors. Thereafter, Python scripted software will be redeveloped using Unity as a control system for the platform. Unity is a mainstream game development engine also used in research with the capacity to render real-time physics, making it highly useful in simulations. Additionally, Unity can interface with an Arduino using Serial Communications, making it an ideal environment for controlling the SMP. The restored platform will inform research design for current and future VEMI projects involving aging and spatial cognition, again and driving, gerontechnology, and the study of multi-level 2D and 3D cognitive maps and aspects of human-computer interaction. | | Project Haggis (Table 23 Side L, 9:15AM-10:30AM) | | While peers may be invited to provide in-class verbal feedback or critique of student work, formal evaluation of student projects in traditional teacher-centric classrooms is usually reserved to the class instructor. Project Haggis proposes a technological mechanism for expanding formal feedback to include student-peer evaluations, providing quality, timely feedback while involving an entire class in the process of evaluating group projects and individual performance. Haggis offers a web-based service making peer feedback accessible in real time as evaluations are completed. Using an SQL database system and web browser, Haggis is a content management system in which data is captured, stored, and made visually available through built-in and user-formulated queries. APIs let students submit on-site evaluations of project work via smartphone. Students will be required to log on via web-browser to view compiled results and to submit individual performance evaluations. The pilot program will be applied to multiple project assignments within a single Spring 2017 course being offered at University of Maine. The underlying system is generically designed to support any number of courses and assignments within courses. The system could likewise be deployed to increase interactivity of an audience and with producers of materials, e.g. at science fairs or art shows, or with business/organization project teams. The... Read More →

Aaron French

Mechancial Engineering, 10:45AM-12:00PM
Nanocellulose Insulation (Table 17 Side R) | | Much of the focus on energy in the modern age is how to produce energy efficiently and without the use of fossil fuels. However, a largely untapped idea that has been around for much longer is how to be more efficient using energy... Read More →

Samuel Landry

Chemical Engineering, 10:45AM-12:00PM
Microfluidic mixer for studying nanoparticle formation | | Nanoparticles offer a novel technique for cancer treatment due to their programmable selectivity enabling effective drug delivery to oncogenic cells. Toxicity and permeation of nanoparticles is determined by particle... Read More →

Vincent Lewis

Mechanical Engineering, 10:45AM-12:00PM
Head injury thresholds of high frequency vibrations using a hemispherical 3d-printed shell and a dielectric gel matrix. | | Mitigation of head injury due to vibration and accidental impact is important to astronauts, since the care for acute injuries is difficult in space. In this study, the functionality of accelerometer instrumentation when embedded into a gel matrix was studied and how this response compares to that of the relatively rigid test apparatus. A hemispherical 3d-printed shell was mounted with four tri-axial MEMS accelerometers and filled with a dielectric gel selected carefully to simulate the mechanical properties of the brain, then it was subjecting to a space shuttle launch simulation to analyze the acceleration response due to high frequency vibrations. Two different angles were used during the launch simulations, zero and 180 degrees, to capture the any angular acceleration that may occur. The acceleration data was then processed through MatLab to produce a range of head injury thresholds based on the Head Injury Criterion (HIC15) and the Brain Injury Criteria (BrIC). Accordingly, a space agency such as NASA will provide the most state of the art measures to mitigate this type of injury even high cost. In the past, impact and vibration studies have been conducted on head forms, such as the Hybrid III crash dummy head forms, to help predict the criteria of brain traumas and turmeric brain injuries, TBIs. While these techniques do have an immense amount of research and do help to predict injuries, they... Read More →

Kayla Marquis

Bioengineering, 9:15AM-10:30AM, 10:45AM-12:00PM
Fast, Cheap, and Simple Device to Detect Red Blood Cell Rupture (Table 14 Side L, 10:45AM-12:00PM) | | When red blood cells rupture, free hemoglobin is released, resulting in severe health complications if not immediately detected. Traditional free hemoglobin detection methods r... Read More →

Daniel Murray

Bioengineering, 10:45AM-12:00PM
Separation of C. Elegans via electrophoresis | | C. elegans has proved to be a useful model species for scientific research due to its short life cycle, small genome, and simple nervous structure. C. elegans experiences a series of six life stages during its normal developmen... Read More →

Nathan Roscoe

Mechanical Engineering, Aerospace Engineering, 10:45AM-12:00PM
UMaine HIAD Senior Capstone Project | | NASA is actively developing the technology and capabilities required to send a human to Mars in the 2030’s. Large aero shells will be required to provide enough aerodynamic drag to decelerate and deliver large masses in an extremely thin atmosphere... Read More →

Madeline Wehrle

Bioengineering,nanotechnology, 10:45AM-12:00PM
Modification of Sandwich Enzyme-Linked Immunosorbent Assay With Gold Nanoparticles. C. White, M. Chesley, M. Wehrle and E. McCormick. From University of Maine, Orono, Maine | | A SNAP® test is sandwich enzyme linked immunosorbent assay (ELISA) diagnostic device manufactured by IDEXX laboratories. The... Read More →

Abigail Weigang

Bioengineering, 10:45AM-12:00PM
Patterning of paper-based SLIPS for microfluidic analytical devices | | The development of microfluidic paper-based analytical devices has recently revolutionized medical diagnostics, serving as a healthcare solution in countries which lack the infrastructure and resources ne... Read More →

Devin White

Mechanical Engineering, 10:45AM-12:00PM
2016-2017 UMaine Mechanical Engineering UAV Capstone | | The UMaine UAV Capstone team was tasked with developing a remote controlled aircraft which must carry 3 hockey pucks around a predetermined course. The aircraft must also be foldable so that it can be stored inside a tr... Read More →

avatar for Libby Gorse

Libby Gorse

Civil and Environmental Engineering, 1:00PM-2:15PM
Quantifying aquaculture’s effect on nutrient flux at the sediment-water interface in the Damariscotta estuary in Maine The importance of developing a sustainable aquaculture industry has been realized in the state of Maine. An extensive, interdisciplinary EPSCoR-funded project by the name of SEANET (Sustainable Ecological Aquaculture Network) is spearheading research on aquaculture from all fronts to reduce the rising pressure placed on wild marine species by the demands of a growing global population. The work presented here involves the determination of the rate at which organic biodeposits resulting from bivalve aquaculture operations can safely be added to the underlying sediment, establishing the carrying capacity of the sediment with respect to aquaculture practice. We have designed flux chambers that hold intact sediment cores immersed in seawater, mimicking environmental conditions for the study of nutrient cycling and flux at the sediment-water interface. Three major hypotheses are tested: (1) biodeposits high in carbon and nitrogen content increase nutrient flux to the water column; (2) fine-grained sediments contain more organic matter and support lower mineralization rates of biodeposits than coarse-grained sediments; and (3) polychaetes lower the efflux of nutrients from the sediment. The Damariscotta estuary has been identified as a critical site to understand due to its suitability for aquaculture. The extrapolation of our data will help future aquaculturists and policy makers to make informed decisions. | | Faculty Mentor: Aria... Read More →

Lydia Kifner

Civil and Environmental Engineering, 9:15AM-10:30AM
Characterizing vernal pool biogeochemistry across a land use gradient in Maine, USA | | Vernal pools are small seasonal wetlands that are crucial for maintaining amphibian and reptile biodiversity in forests in northeastern North America. The pools’ sizes make them especially... Read More →

Anin Maskay

Electrical and Computer Engineering, 1:00PM-2:15PM
SAW Static Strain Sensor for High Temperature Applications | | The measurement of static strain in harsh environment, in particular at temperatures beyond 100ºC, is highly desirable in multiple applications such as power plants, industrial manufacturing, and aerospace. The aforementioned industries have a high demand for small, robust, stable sensors that can operate wirelessly, without a battery or power source, and require minimal maintenance for structural health monitoring and condition based maintenance. The technologies that currently exist face multiple challenges related to sensor endurance, size, complexity, and system integrability. Surface acoustic wave (SAW) technology is a technology that has shown promise in a multitude of sensing applications because of its characteristics such as small size, ease of mass production, robustness, battery-free, and wireless capability. In this research work, SAW sensors fabricated using thin film fabrication techniques on langasite employing platinum alloy based electrodes have been exposed to temperatures up to... Read More →

Monday April 24, 2017 10:45am - 12:00pm

Attendees (3)