Fine Arts
Improving convective cooling during focused ultrasound thalamotomy
Authors: Chris Paul, Alex Edwards. Mentors: Christopher Dillon. Insitution: Brigham Young University. Focused ultrasound thalamotomy is a novel treatment that uses sound waves to ablate problematic neurons in the thalamus, treating conditions such as essential tremor and tremor-dominant Parkinson’s disease. However, this treatment can result in high temperatures at the skull-brain interface which can inadvertently damage adjacent brain tissue. Currently, this risk is reduced by keeping stationary chilled water around the skull during treatments. However, many patients are still unable to receive treatment due to unfavorable subject-specific characteristics (i.e. large amounts of cancellous skull tissue). This study hypothesizes that convective water flow will remove heat from the skull more quickly than stationary chilled water, allowing more patients to receive treatment. To quantify convection effects, we designed an experiment to imitate a patient undergoing focused ultrasound thalamotomy. The experimental setup consists of a hemispherical 3D-printed mock skull containing a brain surrogate, placed into a mock ultrasound transducer. Heating is achieved by pumping hot water at a constant temperature across the inside of the brain surrogate. Temperature will be recorded throughout the setup as we run cold water around the skull in varying amounts. Temperature data from the convection setup will be compared to conduction data to determine which is more effective. The apparatus has been constructed, and experimental data will be recorded shortly. Determining the extent to which convection heat transfer can be increased is an important step in developing more effective treatment plans and improving the lives of additional patients.
GAMERS: General Arm Mechatronic Exoskeleton Robot System
Authors: Michael Olson. Mentors: Nathan Usevitch. Insitution: Brigham Young University. Wearable robotic devices are versatile for assisting users in many scenarios. These devices could provide therapy treatments to users recovering from injuries, provide support for factory workers who commonly perform repetitive tasks (in 2021 there were over two million work-related injuries in the US) and aid motion for elderly people with limited mobility. Whereas other assistive devices require external machinery and infrastructure, a wearable device makes it possible to provide aid during activities of daily living, and in normal work scenarios. Wearable tech can reduce metabolic work required to complete a variety of simple tasks, can enable a user to accomplish tasks normally requiring greater strength than they possess, and can help improve motion capabilities of users in cases of limited mobility.At BYU, we are developing a wearable system to assist user's elbow motion. Our design uses a system of motors mounted on a backpack frame. These motors connect to the assistive sleeve through a set of Bowden cables. We are developing a general mechatronic platform that can be used to actuate several different sleeve designs. Developing this platform enables us to quickly experiment with different sleeve designs and cable routings. The system uses three pairs of motors per arm: one pair for arm pronation and supination (wrist rotation), one pair for elbow extension and flexion (like doing a bicep curl), and one pair for medial or lateral rotation (rotation of the arm to the left or right). When one motor tenses to provide force to move the arm in a particular direction, the other motor relaxes, enabling the arm to travel in that direction. The motors are controlled by an Arduino Nano 33 interfaced with a laptop, and the device could be modified to be compatible with an X-Box controller connected to Robot Operating System (ROS), providing wireless control for arm motion. Potential applications may include rehabilitation, mobility assistance, and assistance with repeated tasks.
The Effect of the Position of Manually Extruded Nanocomposite Strain Gauges on their Physical Properties
Authors: Jordan Penfold, Cera Gowans, David T Fullwood, Anton E Bowden. Mentors: David T Fullwood. Insitution: Brigham Young University. Wearable nano-composite strain sensors created at Brigham Young University are used for biomechanical studies of human motion, due to their ability to follow and sense skin deformation. The manufacturing process for these sensors involves combining the raw materials that make up the sensors – silicone, nickel nanoparticles and nickel-coated chopped carbon fibers – in a planetary mixer, followed by extrusion of the uncured slurry through a syringe with a specialized tip. After extrusion, the sensor material strips are cut to length and subsequently casted and cured. However, undesirable variability in the final piezoresistive properties of the sensors was discovered. This variability was hypothesized to be attributable to sensor positioning during extrusion process. For example, fiber alignment may change as the extrusion process develops, or internal voids may be more evident in sensors cut from different parts of the extruded slurry. To test this hypothesis, several batches of sensors were created with precise records of each sensor position after extrusion. Some sensors were also set aside for CT scans to analyze their void content and nickel concentrations. The results suggested that the sensors located on the initial and terminal ends of the extruded slurry strips had statistically significant differences in piezoresistive properties when compared to the sensors from the central portion of the material strips. Sensors cut from the ends of extruded strips were more likely to have a lower standard deviation of average resistances while strained and relaxed, and were more likely to pass quality control inspection. As a result of this research, we learned that sensors with more consistent physical properties could be obtained by intentionally shortening the strips of slurry produced during the extrusion process (e.g., creating sensor batches with exclusively “end” sensors). After applying this change in methodology, sensor batches usually had more consistent physical properties when compared to sensors made with previous methods.
Image segmentation for breast cancer focused ultrasound therapies
Authors: Taylor Forbes, Rachel Harris, Benjamin Jackson, Nicole Peterson, Sydney Tanner, Chloe Nelson. Mentors: Christopher Dillon. Insitution: Brigham Young University. Focused ultrasound (FUS) therapy is a non-invasive therapy for breast cancer. Treatment plans for this therapy are created on a patient-to-patient basis, which requires a significant amount of time from medical professionals. An important and time-consuming part of developing treatment plans is the precise segmentation of the breast magnetic resonance imaging (MRI) scan and subsequent treatment simulation to ensure that the treatment is effective and safe. Segmentation involves dividing the MRI dataset into segments by assigning distinct tissue types that are then assigned properties and used in simulations to help clinicians plan FUS treatments. However, imprecise interfaces between different tissue types in MRI images lead to discrepancies between individual segmentations, thereby introducing variability into the segmentation process. This variability—which is found even among expertly performed segmentations—can lead to differences in treatment plans. Here, analysis was performed in order to quantify interobserver variability in breast MRI segmentation. This study was conducted by providing basic segmentation training to undergraduate research assistants with no prior segmentation experience. Each participant segmented the same breast MRI dataset into different tissue types using the software Seg3D. The different segmentations were then compared using contour similarity metrics (such as the Dice Similarity Coefficient and Jaccard Index) as well as tissue volume differences. The interobserver variability was quantified using the results from these analyses, which will be helpful in determining the level of precision required for the use of a given segmentation in FUS treatment planning.
Use of data processing and statistical models to understand large sets of experimental chemistry data
Authors: Isaac Sudweeks, Bradley Adams. Mentors: Bradley Adams. Insitution: Brigham Young University. Isopleths are graphical representation of atmospheric data used to analyze the response of an atmospheric chemical such as Ozone to the change in other chemicals in the atmosphere such as oxides of nitrogen and volatile organic compounds. Isopleths then can be used by researchers and other to decide the best way to reduce pollutants in the atmosphere. I set out to use data processing and statistical models to better understand and interpret large experimental chemistry data through the creation of 3 dimensional isopleths. I started by splitting up the data into 2 figures that were functions of 1 variable to make simpler 2d plots. After exploring several techniques to create models such as smoothing splines, b-splines and least squares to fit a quadratic, and through using tools such as generalized cross validation, analysis of covariance, and general visual inspection, I concluded that the best model to create an isopleth is, in the case of the data I was given, a least squares fit-b spline (LSQ spline) using a small number of knots spread evenly over the range of data.
Inertial Energy Storage for Jumping Robots
Authors: Caleb McDougal. Mentors: Nathan Usevitch. Insitution: Brigham Young University. Managing difficult terrain poses a major obstacle for current robotics. Everything from search and rescue to extraterrestrial exploration involves complex controls in unpredictable environments. One potential solution to handling such terrain is a robot that can jump. This could bypass the complex terrain handling and increase the speed at which long distances could be covered. While current robots can jump far, their jump distances decreases quickly with added payload massIn this project we propose a design that stores energy by accelerating a flywheel and converting its rotational energy into linear energy through a string system. Our proposed string system concept is similar to the string systems found in twisted string actuators. The strings slow the flywheel down while accelerating it upwards providing the energy for the jump. The primary energy storage mechanism of the robot is storing energy in the spinning mass of the flywheel. This means if we add payload mass to the flywheel we increase total energy stored. This allows us to increase payload mass without significantly affecting the total energy density of the robot. This would enable robots with heavy payloads to jump large distances.We are developing the system through building both a theoretical model as well as physical prototypes. Through analysis of the system we have determined an optimal rate of transmission as well as an optimal geometry for peak transmission. The models relate the geometry of the string system to the rate of transmission from angular to linear speed. We have created and tested prototypes as proof of concept on a small scale. Prototypes have been created using 3D printing and rapid manufacturing techniques. These have allowed us to explore the effects of different parameters.Jumping robots could traverse complex terrain and help explore rugged environments. The flywheel string system could allow the robot to effectively carry large payloads while maintaining large jump heights. The proposed jumping robot design could lead to important innovations in the fields of robotics and dynamics.
A portable device for measuring Achilles tendon stresses in dancers
Authors: Joey McConkie, Jackson Wilcox, Eli Smith, David Phair. Mentors: Christopher Dillon, Matthew S Allen. Insitution: Brigham Young University. Elevated strain in the Achilles tendon places ballet dancers at high risk for tendinopathy, which in severe cases can terminate a dancer’s career. Typical methods of measuring in vivo tendon stresses—which could be used to predict and prevent tendinopathy—are invasive, making them impractical for professional dancers. We use a portable, non-invasive, externally mounted system of one transducer and two accelerometers to generate and record vibrational motion within the tendon. The speed of sound waves propagating through the tendon is used to calculate the stresses present. The portability of the system allows it to be worn by a dancer during an actual dance routine instead of requiring measurement to be taken at a fixed location where mobility is limited. This system results in data that can noninvasively quantify tendon stresses regularly experienced by ballet dancers. The improved understanding of in situ stresses measured by this device will have great potential for improving the prediction and prevention of debilitating tendinopathy.
Tissue-Mimicking Phantoms with Tunable Acoustic and Mechanical Properties for Visualizing MRgFUS Cavitation Lesions
Authors: Elizabeth M J Allen, Steven P Allen, Henrik C A Odeen. Mentors: Steven P Allen. Insitution: Brigham Young University. BackgroundThe focus of this project was creating phantoms with customizable attenuation and stiffness for visualizing histotripsy lesions created with magnetic resonance guided focused ultrasound surgery (MRgFUS). Having phantoms with varying mechanical and acoustic properties is important because they affect cavitation and allow for testing of different histotripsy mechanisms. Creating a tunable phantom with red blood cells (RBCs) spread throughout it is valuable because it allows us to visualize High Intensity Focused Ultrasound (HIFU) lesions from MRgFUS in three dimensions throughout the gel.Materials and MethodsWe produced gels with tunable acoustic and mechanical properties by mixing 5 different ratios of evaporated milk and deionized water with 5 different ratios of agarose powder to create 25 different gels.Gel attenuation was measured using a through transmission setup and Young’s Modulus was obtained using a tensile tester in compression. The MR properties, including T1, T2, and T2* of each gel were also measured prior to creating histotripsy lesions.ResultsIn general, the agarose gels had an increase in attenuation as the amount of evaporated milk increased, and an increase in mechanical stiffness as the amount of agarose powder increased. They also provided excellent lesioning contrast for visualizing MRgFUS lesions.ConclusionsWe successfully created a series of tunable gels for visualizing MRgFUS lesions. These gels are also useful for characterizing ultrasound transducers and can be used to test emerging MRgFUS technology as it becomes more widely used and is further developed.
Application of Statistical Approaches in Non-Linear Normal Mode Calculations
Authors: Davis Wing. Mentors: Matt Allen. Insitution: Brigham Young University. When thin structures vibrate under large forces, can exhibit geometric nonlinearity, which makes it very hard to compute their motion and the stresses they undergo. This work builds on prior efforts, which used a small number of computations derived from detailed models, together with machine learning techniques, to train a reduced order model (ROM). This ROM could then be simulated efficiently to estimate the dynamic, nonlinear response of the structure in a fraction of the time it takes to compute the full-order model.This reduced order modeling technique is called Gaussian Process ROM or GPR ROM, and was developed by Park et al. [MSSP, vol. 184, p. 109720, 2023]. The GPR-ROM approach works by applying a number of static loads to the detailed model of the thin structure, and then by integrating those loads over time, it produces an understanding of the dynamics. In addition to its speed, this approach also provides confidence bounds on its findings, meaning that researchers can gauge a number of plausible values for the nonlinear responses of the system being measured.This research further develops this approach to computing the dynamics of structures by applying the GRP-ROM to a more complicated structure than previously studied, namely, a gong. The gong as a test structure is significant, as the signature sound of a gong is produced through geometric nonlinearities. In order to capture the behavior of the gong, and thereby its sound, several modes need to be studied simultaneously, and thus more degrees of freedom are required to capture its behavior in a ROM. This work evaluates the GPR-ROM process for the gong by computing various ROMs for different load states, thereby capturing the geometric variability of the gong’s responses. Then, the non-linear normal modes (NNMs) of the system are calculated within 95% confidence, which allows for a reasonable understanding of the dynamics of the system. These will be compared to the NNMs computed, at great expense, from the full-order model to validate the method.
Surrogate Folds in Gossamer Satellites
Authors: Carolina Wright. Mentors: Spencer Magleby. Insitution: Brigham Young University. In recent years there has been an increasing demand for satellites that take up less space, but can still provide a large surface area. One existing solution to fit more material into less volume is deployable systems: systems that can be stowed in small spaces and then expand to occupy a large surface area. Fitting the components of a deployable system into that small space however is where difficulties arise. Thick materials do not stow into small volumes, so thinner, lightweight materials are more desirable. These types of materials can be called “gossamer” materials, and have been used in many space applications of deployable systems. Gossamer structures solve many problems related to stowing satellites in small spaces, but another complication arises for certain applications: current approaches in gossamer technology involve much creasing and wrinkling of the membrane, and do not generate the flatness required for larger, more complex systems. This is detrimental to reflectarray applications, which require a very flat surface. This research seeks to provide a solution to stowing a membrane without creasing it, thus allowing for greater flatness once deployed. This will be done by splitting the membrane into panels, folding them over each other, and rolling it up. Rolling the membrane reduces wrinkles, but adjacent panels must be able to slide past each other. Regular folding does not allow for this movement, so this requires the development of specialized surrogate folds. Surrogate folds are hinges that are used to replace the creases in a folding pattern, so the membrane itself remains unbent. As we design these folds we will look specifically for characteristics which allow for those adjacent panels to slide side by side, as well as still fold 180 degrees. This will allow the panels to fold over each other, roll up tightly, and then be deployed while leaving the membrane free of creases or wrinkles. The results of this research will be key to developing larger deployable systems in the future. Greater precision and flatness as a result of surrogate folds will open a door for further advancements in the technology that can be used on smaller, thinner reflectarray satellites.
Using Machine Learning to Control Soft Robotics
Authors: Jacob Adams, Larry Catalasan. Mentors: Tianyi He. Insitution: Utah State University. Soft robotics is a field of robotics involving the controlled movement and manipulation of soft materials to fulfill tasks that standard robots cannot. In this project, we aim to create a soft robotic arm capable of movement by using a machine-learning algorithm to generate its subsequent moves. To fulfill this goal, the robotic arm is contained in a metal frame that has cameras monitoring its position. The camera feed is then processed through a machine-learning algorithm into instructions that can be used to pull various strings attached to the arm which will allow the arm to move. Currently, our team has finished building the frame/arm as well as software that can use cameras to map the position of the arm. The next steps in this project are to research and implement a machine-learning algorithm and write a program that can appropriately adjust stepper motors to pull the strings.
Implementing Quality Control for the Fluorescent Coating of Intravenous Catheters
Authors: Melissa Wiggins, Aaron Bigelow, Porter Ellis. Mentors: Ronald Sims. Insitution: Utah State University. Ensuring that the hydrophilic coating of Merit Medical’s Prelude IDeal trans-radial catheter is necessary for its biocompatibility and patient safety. The current method for testing the coating involves a test using Congo Red Dye. The Congo Red Dye does work, but the dye is toxic and all tested catheters must be discarded after testing. The Conge Red Dye test results in wasted catheters. A new method for testing the coating uses fluorescent particles. First, fluorescent particles are added to the hydrophilic coating. These fluorescent particles can be easily visualized on the catheter using UV light. Thus, the uncoated portions of the catheter can be visualized as well. The coated catheters are placed into a black box that ensures only the catheter is being seen. A line scan camera is used to take pictures of every side of the catheter as the catheter spins. Photos of the scanned catheter are then linked together, showing the entire circumference in one picture. The catheter is ultimately tested by analyzing the full picture to find any uncoated regions. By using software to analyze the full picture, the size of uncoated regions is determined with greater accuracy. This new method allows for tested catheters to be used after testing and does not involve any toxic chemicals.
Exploring the Quasi-Static Compression Characteristics of Origami-inspired Foldcore Sandwich Composite
Authors: Chase Mortensen, Juhyeong Lee. Mentors: Juhyeong Lee. Insitution: Utah State University. Foldcore sandwich composites (FSCs) are constructed using multi-layered sheets folded in a desired pattern and placed between two thin face sheets. The choice of material geometric folding pattern provides a large design space to optimize the structural performance of FSCs. These composites are typically made of carbon fiber reinforced polymer (CFRP) composites, offering lightweight and high-energy-absorbing properties. This work aims to characterize the size effects of unit-cell foldcores by analyzing the influence of subscale foldcore models subjected to periodic boundary conditions under quasi-static compression. Three Miura-based unit-cell foldcore models were considered: (1) 1×1, (2) 1×2 (two 1×1 unit-cell foldcores connected in parallel), and (3) 2×1 (two 1×1 unit-cell foldcores connected perpendicularly). Through finite element modeling, three key findings were derived: 1) the finite element model closely replicated experimental results; 2) the application of periodic boundary conditions had an insignificant impact on subscale foldcore models. Third, inconsiderable variations in stress and damage were observed primarily along the foldcore creases when unit-cells were placed in parallel.
Arm Modeling in Preparation for Wearable Mobility-Enhancing Elbow Brace
Authors: Samuel Stearman, Benjamin Crapo, Antonio Trujillo. Mentors: Jeff Hill. Insitution: Brigham Young University. Our goal at BYU SMASH IT lab is to improve patient’s mobility in rehabilitative settings. For this purpose, we’re modeling the human arm to aid in our design of wearable rehabilitative sleeves. We are investigating methods for manipulating elbow flexion and extension using an assistive elbow brace, such as through cable-driven movement and the less used concept of tensegrity. The appeal of these methods is their flexibility, lightweight, and multiple degrees of freedom in movement. In the prototyping stage we’ve created a test stand resembling a human arm that we use to evaluate how our elbow brace would interact with the wearer and measure the forces between the arm and the brace. Measurements from these tests will aid in our design of a future elbow brace. Knowledge gained from this work has the potential to apply to other joints, each with their own rehabilitative and other uses.
Investigation of the Representative Volume Element in Fibrous Porous Systems
Authors: James Walker. Mentors: Pania Newell. Insitution: University of Utah. During the COVID-19 pandemic, the discussion of using fibrous porous materials in the context of face masks has gained significant relevance. These materials consist of networks of fibers that are intertwined through weaving, knitting, or bonding, creating a structure with interconnected pores that facilitate the transport of gasses and liquids. When a face mask is used, it is under tensile stresses that can greatly affect its longevity and behavior, and simulating the behavior of the fibers within the mask under this loading is essential in enhancing its robustness. Numerical analysis involving fibrous porous materials is challenging due to their inherent randomness and anisotropy, however. The models we use need to accurately represent the entire mask, which we achieve using a small cubic cell known as a representative volume element (RVE). In this study, we systematically investigate the role of fiber diameter, fiber cross sectional shape, and RVE size on the mechanical properties of various RVEs using a computational framework built on the finite element method. The RVEs themselves are idealistic, but useful networks of polypropylene fibers that are orthogonally intersected within cubic boundaries. Our results show that once an appropriate RVE size was determined with constant porosity between systems, the stiffness of the samples increases as the cross-sectional shape progresses from a triangle to a square, to a pentagon, etc., largely due to the increases in intersection volume between fibers. We also found that increasing the diameter serves to increase material stiffness. This project not only offers insights into designing more robust face masks but also provides novel tools that can be used for designing other fibrous porous materials.
The effects of invasive competition on the phytochemistry of cottonwoods
Authors: Jessica Crook, Brooke Parker, Michael C Rotter. Mentors: Michael C Rotter. Insitution: Utah Valley University. Fremont cottonwoods are a foundation species throughout the Wasatch front. Cottonwoods face a competitive threat from the invasive tamarisk, which grows very easily in the same habitats. Tamarisk can have a negative impact on cottonwoods, displacing them. The loss of cottonwoods could have negative impacts on ecosystems. This study will examine phytochemical compounds in cottonwoods, and how they are affected by growing in competition with tamarisk. We hypothesize that cottonwoods growing in competition with non-native tamarisk will be stressed and produce higher levels of phytochemical compounds. To test our hypothesis, cottonwoods were grown in pots from cuttings either in competition with a tamarisk cutting, or alone. We then tested total phenolics using a ferric chloride solution, and tannin content using a radial diffusion method. It’s predicted that due to the stress of competition, cottonwoods that grew with tamarisk will have higher overall phenolics and tannins than cottonwoods that were grown on their own. The results of this trial could be important in influencing beaver foraging patterns. Since beavers prefer trees with elevated levels of phenolics and other phytochemicals, this could imply an important mechanism allowing tamarisk to invade an area by stressing cottonwoods and encouraging beaver foraging on these plants.
An Integrated Microfluidic Model of Subretinal Tissue to Study Age-Related Macular Degeneration
Authors: Sophia Hessami. Mentors: Elizabeth Vargis. Insitution: Utah State University. Age-related macular degeneration (AMD) is the leading cause of blindness in developed countries. During later stages of AMD, immature blood vessels penetrate Bruch’s membrane and release fluid into the subretinal space. This process is referred to as choroidal neovascularization (CNV). Current in vitro models of retinal tissue are limited, so we propose a three-layered microfluidic model of the subretinal tissue, consisting of retinal pigment epithelium (RPE), Bruch’s membrane (BrM), and choroid. We have produced models of BrM using hagfish proteins that are more mimetic to the nonporous, proteinaceous BrM that is seen in vivo. Then, we fabricated a three-layered microfluidic device using the BrM models and polydimethylsiloxane (PDMS). Once the devices were assembled, porcine primary RPE were isolated, cultured, and characterized in the upper channel of the microfluidic device. Going forward, HUVECs will be cultured and characterized in the lower channel of the device. Then, primary RPE and HUVECs will be co-cultured and characterized within the device. The result will be a multilayered microfluidic device containing primary porcine RPE, hagfish protein BrM models, and human umbilical vein endothelial cell (HUVEC) choroid. It is expected that RPE protein secretions will diffuse through the BrM models and initiate interconnected vascular network formation in the endothelial cells. In the future, we will induce chemical hypoxia to turn this model into a diseased model of the subretina. We hypothesize that this in vitro model of the subretinal tissue will lead to a better understanding of the mechanisms of CNV initiation and progression in AMD.
Targeted Treatment of Cytomegalovirus
Authors: Alisa Dabb, David Britt, Elizabeth Vargis. Mentors: David Britt. Insitution: Utah State University. Cytomegalovirus (CMV) is the leading infectious cause of birth defects in the United States. CMV is typically treated with ganciclovir, an antiviral medicine that inhibits the virus. However, ganciclovir also inhibits the growth of neutrophils, a type of immune cell, which leaves the patient vulnerable to other viruses and diseases. To combat the toxic effects of ganciclovir, a subtherapeutic dose of ganciclovir can be used with the combinatorial treatment of quercetin and poloxamer 188 (P188) while maintaining the same level of antiviral activity. Quercetin is a hydrophobic natural flavonoid with antiviral properties that is found in many fruits and vegetables. P188 acts as the delivery vehicle for quercetin and is an FDA-approved polymer that targets the mitochondria in a cell. This study examines two delivery vehicles—P188 and Dimethyl Sulfoxide (DMSO) to optimize the combinatorial treatment of quercetin and ganciclovir.DMSO is a solvent for both polar and nonpolar compounds. DMSO is beneficial for cell growth at low concentrations. Additionally, DMSO successfully delivers hydrophobic quercetin to infected cells, although it does not target quercetin delivery like P188. Targeting the mitochondria, like P188, could be valuable because one mechanism of CMV infection occurs when the virus attacks the mitochondria in an infected cell. This study aims to understand if mitochondrial targeted delivery of quercetin better protects cells against CMV infection compared to non-targeted quercetin delivery.
Prescribing Passion: How Medical Experiences Shape STEM Enthusiasm
Authors: Porter Bischoff, Kody Garrett, Clayton Rawson. Mentors: Britt Wyatt, Josh Premo. Insitution: Utah Valley University. This research delves into the underexplored territory of medical experiences and their potential impact on undergraduate students' motivation in STEM courses. While prior studies have focused on factors like gender and ethnicity in STEM, little attention has been given to the influence of medical experiences and chronic conditions on STEM students, despite evidence suggesting that students with medical conditions face unique challenges in completing their degrees.Our study specifically investigates the effects of medical experiences and chronic conditions on students enrolled in science classes at an open enrollment institution. We hypothesize that increased academic interruptions due to medical experiences may lead to decreased science motivation, reduced sense of belonging, self-efficacy, and self-determination.Data was collected from 390 students across 14 biology courses, including non-majors, at a teaching-focused institution, both before and after the courses. Surprisingly, 57% of surveyed students reported having a medical experience, and 22% reported having a chronic condition, highlighting the significance of this identity within the student population.As anticipated, students experiencing more medical interruptions exhibited a notable decrease in their sense of belonging and self-efficacy, albeit with a small effect size. Intriguingly, students with medical experiences who engaged more with science demonstrated significantly higher levels of science immersion and motivation. This suggests that medical experiences can influence student engagement with science, both positively and negatively. The impact of these interruptions on a student's academics is closely linked to their sense of belonging and self-efficacy. However, if medical experiences drive increased engagement with science, students may find themselves more motivated to explore these experiences within the context of scientific inquiry.Understanding how medical experiences can shape students' motivation is essential as science instructors adapt their course content and pedagogy to be more inclusive, embracing the diverse identities within their student population.
Microscale Robots
Authors: Alberto Miranda, Samannoy Ghosh, Yong Lin Kong. Mentors: Yong Lin Kong. Insitution: University of Utah. Microscale robots can impart a broad range of functionalities in the biomedical domain that can be leveraged to address unmet clinical needs, including noninvasive surgery and targeted therapies. Conventional robot navigation methods typically involve specific gaits suited for certain environmental conditions. However, implementing the same conventional methods inside a human body is highly challenging. As the human body is a complex and dynamic environment, a microrobot must adapt to these complex and challenging environments to perform targeted studies. Previous research demonstrated an integration of an untethered, 3D-printed three-linked-sphere crawler with a model-free reinforcement algorithm. The work done with the theoretical Najafi–Golestanian three-linked-sphere mechanism was its first experimental integration with a reinforcement learning algorithm as a relatively simple and highly scalable self-learning robot that can navigate in unconfined and confined spaces. The progress presented in the current research is a direct continuation of the previous work on the 3-linked-sphere crawler. While the previous work focused on developing a proof of concept for adaptive gait learning for the crawler, the current work focuses more on the challenges of implementing the robot in a low Reynolds number fluid medium. Our current research hypothesizes that a self-learning autonomous system could demonstrate successful gait adaptation in a low Reynold’s flow environment. The design of our robot has been significantly improved to make it sustainable for extended use under viscous fluids. The research presented outlines the work that has been done to transition the robot from a crawler into a swimmer, the challenges that have been faced, and how they have been addressed. Successful implementation of this 3-sphere-swimmer will be a step forward in integrating machine learning tools into microswimmers for autonomous gait adaptation inside the human body.
Impact Resistance of 3D-Printed Architectured Sandwich Composite Panels for Future Mobility Solutions
Authors: Ethan Layne, Tareq Hassan. Mentors: Juhyeong Lee. Insitution: Utah State University. A key design criterion for aerospace structural applications is specific mechanical property (i.e., mechanical property divided by the density of a material). Honeycomb sandwich panels which are commonly used in aerospace/aviation structural applications provide lightweight performance, however they have several drawbacks. They include (1) limited alteration of core geometric parameters, (2) few core material selections, and (3) a closed-cell core network. These limitations may be bypassed with 3D-printed lattice-core sandwich panels to provide customizable structural performance. This study investigates impact resistance of architectured sandwich panels designed with various core designs and infill densities. A series of 5~20J low-velocity impact (LVI) tests will be performed on 3D-printed ABS sandwich panels with honeycomb, gyroid, and triangle cores; with infill density varying from 5% to 15%. In this work, the effects of core geometry and corresponding infill density on LVI resistances will be studied to optimize the structural performance of 3D-printed ABS sandwich panels. The primary objective of this study is to characterize these novel sandwich structures with highly customizable 3D-printed complex cores, offering tailorable structure performance.
Down Sampling Electromyography for Low-Power Wearables
Authors: Josh D Gubler, Connor D Olsen, Fredi R Mino, Mingchuan Cheng, Jacob A George. Mentors: Connor Olsen. Insitution: University of Utah. The long-term goal of this research is to investigate how lower sampling rates of electromyographic (EMG) signals affect the performance of classification and regression algorithms. EMG signals measure the electrical activity of muscle contractions. Myoelectric interfaces can classify or regress features generated from the EMG signal to control devices like prostheses, exoskeletons, robotic systems, or human-computer interfaces. Most of the power of the EMG signal is contained between 50 and 500 Hz, and most recording devices sample EMG at 1 kHz with a 5-15 Hz high-pass filter and a 375-500 Hz low-pass filter. As myoelectric devices become wireless and integrated with wearable technology, reducing the sampling rate can substantially reduce battery consumption and processing power. We sampled EMG data at 30 kHz from the forearms of three participants while they performed six gestures. We then downsampled to rates ranging between 50-1000 Hz and calculated various EMG features from the downsampled data. We found significant effects for both EMG feature and sampling rate on regression performance of a modified Kalman Filter (p < 0.05, two-way ANOVA). The mean-absolute-value and waveform-length EMG features performed significantly better at low frequencies (<250 Hz) in contrast to zero-crossing, slope-sign-change, and mean-frequency EMG features (p < .05, multiple pairwise comparisons). Sampling rate also had a significant impact on the classification accuracy of a k-nearest neighbors algorithm (p < 0.05, two-way ANOVA). However, sampling rate had no impact on classification accuracy for a continuous Convolutional Neural Network (CNN) (p > 0.05, two-way ANOVA). Future work will validate the effectiveness of this CNN as a control modality when using downsampled EMG from wearable sensors. If proficient control can be achieved from down sampled EMG, this could substantially improve battery life and make EMG a more practical biosensor for wearable devices.
Innovating Disaster Response: Solar-Powered Water Purification
Authors: Evelyn Fuentes, Thomas Keate, Christian Riordan. Mentors: Aaron Davis. Insitution: Utah Tech University. Studies predict that extreme weather events, due to climate change, are expected to increase in frequency and magnitude. Specifically, the flooding impacts from a hurricane may lead to the loss of necessary infrastructure, such as water treatment plants, leading to the loss of drinkable water. In response we, as a multidisciplinary team, have developed a purification device that is able to effectively filter water to allow communities and families, without available infrastructure, to receive drinkable water. We are testing different processes of filtration to find the most efficient and cheapest method. This process of filtration would be possible due to a foldable solar array that would power a pump to push water through a filtration system. The solar array would supplement other disaster relief options due to its ability to be used without constant supervision, and it would be capable of continuous, reliable use. This device would allow for the production of drinkable water in the event that water purification infrastructure was down, but grey water was available. The solar array and water purification device would be portable for fast deployment, with options of building a larger device, as part of a disaster relief preparedness package. If successful, this device has the potential to increase disaster preparedness and save lives through providing clean water.
Analytical method development and quantification of chlorinated pesticides in Utah Lake
Authors: Rob Patterson, Nate Graham. Mentors: Sally Rocks. Insitution: Utah Valley University. The pervasive use of pesticides in agricultural practices has raised environmental concerns due to their potential to contaminate water bodies and affect aquatic ecosystems. This study focuses on the identification and quantification of three common pesticides—atrazine, 2,4-dichlorophenoxyacetic acid (2,4-D), and dichlorodiphenyltrichloroethane (DDT) in Utah Lake.. Utilizing advanced chromatographic and spectroscopic techniques, including Gas Chromatography-Mass Spectrometry (GC-MS) and High-Performance Liquid Chromatography (HPLC), we aim to detect the presence and determine the concentration levels of these substances. Water samples were collected from multiple points around the lake to assess the spatial distribution of the pesticides. The method development involves optimization of sample preparation procedures, including solid-phase extraction (SPE) and cleanup, to increase the detection sensitivity and accuracy. This project enhances environmental monitoring and has implications for water quality management, regulatory compliance, and public health in the region. The anticipated results will contribute to a better understanding of pesticide pollution patterns and will aid in formulating strategies to mitigate the contamination of aquatic environments.
Random-walk model of retina neovessel growth
Authors: Cassandra DuBose Corry. Mentors: Elizabeth Vargis. Insitution: Utah State University. Age-related Macular Degeneration (AMD) is characterized by a blurring of the central vision and is one of the leading causes of vision loss in the United States. As a branch of the disease, exudative AMD is distinguished by retinal angiogenesis, when new blood vessels grow into the retina. Understanding retinal conditions that promote or discourage angiogenesis by using mathematical models can lead to improved understanding of disease progression and treatments. This discrete mathematical model presented here uses the theory of reinforced random walks to simulate the biological behavior of endothelial cells (ECs) as they leave a parent blood vessel and travel through the choroid and Bruch’s membrane towards the retinal pigment epithelial (RPE) layer. Cell behavior such as number of divisions and blood vessel coverage are analyzed for comparison to experimental observations. Pigment epithelium-derived factor (PEDF) is included and examined for its effect on the behavior of the ECs and its ability to prevent angiogenesis. This computational model provides novel insights into exudative AMD with parameters that can be adjusted to meet different needs.
Preliminary Studies Towards the Development of a Rapid, Point-of-Care Diagnostic Assay for the Detection of Mycobacterium tuberculosis
Authors: Aubrey Russell, Ben Paepke, Nathan Goldfarb. Mentors: Nathan Goldfarb. Insitution: Utah Valley University. Tuberculosis (TB) remains an insidious scourge of civilization. The causative agent, Mycobacterium tuberculosis (Mtb), is a global health crisis, and TB ranks as the second leading cause of death from an infectious disease worldwide after COVID-19. In 2021, there were approximately 1.6 million deaths reported from TB (including 187,000 people with HIV) and an estimated 10.6 million new infections. Additionally, multidrug resistant TB remains a public health crisis. An initiative of “The Global Plan to End TB” is the development of rapid, point-of-care diagnostic assays for the early diagnosis of TB.2 Here we present our initial efforts towards the goal of the development of a rapid, lateral flow assay (LFA) for the detection of Mtb.
Analyzing Fine EMG Control of Hemiparetic Stroke Patients Using a Virtual-Reality Variant of the Box and Blocks Task
Authors: Cassandra L Burdick, Caleb J Thomson, Troy N Tully, Jacob A George. Mentors: Caleb Thomson. Insitution: University of Utah. The long-term goal of this research is to decode fine motor intent from electromyography (EMG) of hemiparetic muscles. Stroke is the leading cause of disability in the United States, with 800,000 individuals experiencing a stroke each year. Eighty percent of stroke survivors experience hemiparesis. Severe hemiparesis immobilizes the arm, making it difficult to assess EMG control and motor function on traditional tasks. Here, we introduce a variant of the clinical Box and Blocks Test (BBT) of hand dexterity in virtual reality (VR) to assess fine motor function of EMG control in hemiparetic stroke patients with immobile arms. Our VR variant of the BBT allows individuals to control a VR hand to transfer VR blocks back and forth between two locations separated by a barrier. The VR hand can grasp, rotate, and translate based on EMG commands or other control signals received at 30 Hz via UDP communication. The forces exerted on the blocks and the location of the blocks and hand are logged to assess grasping precision, force regulation, and transfer rate. Multiple block sizes can also be used to assess dexterity with various grip apertures. The ability to assess EMG control in patients with hemiparesis can support the development of myoelectric orthoses. Practicing dexterous myoelectric control in VR may also help alleviate hemiparesis and expedite qualification for myoelectric orthoses.
Signal Processor for Electrogram and Electroanatomic Data (SPEED)
Authors: Rui Jin, Lindsay C Rupp, Anna Busatto, Rob S MacLeod. Mentors: Rob S. MacLeod. Insitution: University of Utah. Introduction: The electrocardiogram is the most common tool to diagnose and assess cardiac conditions, such as rhythm abnormalities, myocardial ischemia, and heart failure. However, clinical diagnosis and management of heart disease are challenging due to the remote nature of body-surface electrocardiogram measurements, with a median accuracy of 67% among physicians. One approach to improve the accuracy of electrocardiography is to conduct mapping studies in which 10-100 catheter-based electrodes are inserted within the heart. The recorded signals provide more proximity and thus accuracy, but they also require specialized software to analyze, quantify, and visualize. We developed the Signal Processor for Electrogram and Electroanatomic Data (SPEED), a new, open-source, unified pipeline to facilitate effective signal processing and visualization of such cardiac-mapping signals.Materials and Methods: Our pipeline is based on two existing toolboxes, the Preprocessing Framework for Electrograms Intermittently Fiducialized from Experimental Recordings (PFEIFER) and OpenEP. PFEIFER is a toolset for sophisticated signal-processing of cardiac electrograms that allows the user to select semi-automatically fiducial markers, which are time points and intervals of interest within a heartbeat. OpenEP primarily accepts as input complete electroanatomic data, including both processed cardiac electrograms and spatial geometry; OpenEP also provides built-in functions for analyzing and visualizing cardiac electrograms, such as displaying potentials on the cardiac geometry. Since both software packages provide complementary workflows for managing electrograms, our goal was to integrate the two software packages and present it to the user as a new Graphic User Interface utilizing both applications simultaneously.Results: It was natural to develop SPEED in MATLAB as this is also the language used for both PFEIFER and OpenEP. The primary interface to SPEED incorporates a data-centric design such that the user can provide the electrogram and geometry files to be processed, and the algorithm automatically determines the applicable functions based on the input type. Since both PFEIFER and OpenEP can parse data into more interpretable open-source formats, the user can also export the processed data for further analysis in addition to visualizing and quantifying the data features. Through integrating both software packages, SPEED can support the following main functionalities: (1) in-depth filtering and processing of electrogram signals, (2) visualizing anatomic geometry and electrode locations, and (3) mapping three-dimensional potential and activation of cardiac electrophysiology.Discussion: SPEED offers the user a more thorough and unified workflow in the analysis of cardiac-mapping signals than either of its components. The user can utilize the functionalities of both PFEIFER and OpenEP simultaneously, allowing for a versatile and powerful processing pipeline. For instance, the user can extract key features from the recorded electrograms and visualize the location of the corresponding electrodes, a feature that was previously not possible. In addition, the open-source nature of the software packages allows the user to modify or expand the functions to better suit their individual needs. The software design of SPEED is still in the early stages; thus, as with most software, further development and user testing will follow to make the algorithms compatible with more data types and implement additional features. Conclusion: SPEED processes and displays the complex information in a clear and accessible way, allowing the user to perform subsequent interpretations and analyses more easily. SPEED can be used by research cardiologists to facilitate a more efficient workflow, as well as to improve the efficiency and accuracy of clinical diagnosis of heart diseases.
Computational Modeling of Curcumin Production in E. coli with Metabolic Engineering
Authors: Lukas Keller, Jixun Zhan, Zhen Zhang. Mentors: Jixun Zhan. Insitution: Utah State University. Curcumin is a common dietary supplement found naturally in the plant turmeric (Curcuma longa). Native to South Asia, the turmeric plant has been an important component in Indian and Chinese folk medicine. Curcumin has long been known to be an effective antioxidant and possesses anti-inflammatory properties. In today’s world, curcumin is a common nutraceutical and plays a part in the billion-dollar supplement industry. However, production and extraction of this compound is difficult and uses vast amounts of resources to cultivate. One solution to produce natural products like curcumin is the use of metabolic engineering to synthesize the product in another organism. The USU Metabolic Engineering Lab has developed a synthetic metabolic pathway to produce curcumin from an amino acid inside genetically transformed E. coli. The use of metabolic engineering techniques can produce larger quantities of the desired compound in greater quantities and purities while using a fraction of the land, water, and energy. To inform the use of these techniques, a predictive computational pathway was developed and is being validated with experimental results. An effective model can help researchers and businesses by allowing them to accurately predict curcumin yield and concentration during production.
Beyond Blueprints: A Comprehensive Exploration of the Impact of Rendering Methods on Architectural Communication and Presentation Strategies
Authors: Hailey Packard. Mentors: Brandon Ro. Insitution: Utah Valley University. In the vast landscape of architectural mediums, the key to capturing clients' attention and ensuring a comprehensive grasp of a proposed project lies in the choice of rendering methods. This research endeavors to pinpoint the most effective communication medium through an experiment employing various rendering techniques. Four renderings of a single exterior façade will be crafted, each utilizing diverse media methodologies. To convert the renderings into quantifiable data an innovative approach involves subjecting the renderings to AI-driven algorithms, predicting where the human eye is drawn to in the images in the first 3-5 seconds superseding the influence of cognitive bias, and aiming to identify which of the images inherently captures the most attention. The research results will be examined and the significance of differences between rendering methods addressed. This research delves into the implications for architects, exploring how these findings may influence presentation strategies, considering potential impact of passing fads, taking into account the alignment of media style with architectural subject matter, and noting whether the experiment requires diverse architectural styles for optimal effectiveness. The current hypothesis regarding these results is that the images with contrast and hierarchy in the composition, such as watercolor renderings, will outperform the other methods. The overarching objective of this research project is to discern the most effective medium for capturing the client's attention when presenting architectural projects. Due to modern advancements that increase our access to an abundance of knowledge and techniques, architects and designers must make informed choices about how they present their ideas. By comparing these mediums and formats through these methods, this research will attempt to identify the most effective strategy for engaging clients and enhancing their comprehension of projects which will also aid in contributing to a clearer understanding of visual communication in the architectural field.
Finding Harmony in Design: Exploring the Connection of Music and Architecture Through Proportion
Authors: Desiree Ritchie. Mentors: Brandon Ro. Insitution: Utah Valley University. Both music and classical architecture have a strong foundation in proportion. Further research shows that the same systems of proportions are found in both areas. Common chords found in music can be translated into proportions found in architecture. For example, the octave has the same proportion as a 2:1 ratio. While there is a clear relationship, the question remains: does understanding one help in understanding the other? Does understanding music make one a better architect? Can designers benefit from musical instruction? To answer these questions, a comparative survey was conducted asking participants to determine which visual proportion best matched the sound heard. These questions range from basic chords and rectangles to a more complex comparison of the Fibonacci sequence to the golden ratio. The survey also asks about participants' background in both music and architecture, as well as general demographic questions. The demographics of the current survey are limited to students and faculty attending BYU and Utah Valley University, but further studies will provide a more comprehensive result. To analyze the results, a comparison will be conducted on the percentage of individuals who were correctly able to recognize the same proportions visually and audibly. This will then be cross-examined with the demographics, comparing those who have a background in music and/or architecture to those who do not. The expected result is that those familiar with one of the previously mentioned fields will better recognize proportions in both music and architecture. If this is proven true, it will show that having a background knowledge in multiple fields will help to create a more well-rounded and capable individual. It will provide insight on how to become better in one’s chosen field.
Understanding the Value of Function Following Form
Authors: Eric Burton. Mentors: Brandon Ro. Insitution: Utah Valley University. Which approach creates more interesting and beautiful buildings: Those who utilize ‘form following function’, or ‘function following form’? When an architect designs only using form following function, the building can have an excess of the utilitarian, resulting in a building that is very useful but can suffer in its overall design aesthetic, lacking attention to beauty. When the opposite occurs, the building can be an incredible work of art, but perhaps suffer in its usage. For an architect to be successful, there needs to be a balance of both methods.In the field of architecture, many architects and designers follow the adage ‘form ever follows function’. While the purpose of this research project is not to discredit this philosophy, the goal is to prove that the other side of the architectural coin, so to speak, has value and that there are multiple philosophies to consider.The research methodology for this project was comparing the buildings of architects that utilize differing philosophies with various building types, and utilizing eye tracking software to help determine which philosophy is more engaging, and beautiful to the average person. The results show that function following form typically produces buildings that are considered more pleasing to the eye, when it comes to the building facades that are evaluated. Building with form in mind first will allow for the designs to better fit their perceived building typology. There is worth at looking into different perspectives. When one is approaching design, they should be willing to implement multiple methods to achieve the best version of their building. Function following form is one method that can help us attain a more beautiful building experience that will impact the world for generations to come.
Visual Perception of the Classical Orders: Eye-tracking Simulations on the Orders
Authors: Alexia Trapier. Mentors: Brandon Ro. Insitution: Utah Valley University. I am studying architectural column orders and how they are interpreted by the average person. I chose this because I want to learn how people are drawn to the orders when looking at them so I may better understand the orders themselves, and how the world perceives them without an in-depth knowledge or understanding of their composition. I will be doing a comparison of three column orders via eye-tracking software. These consist of the doric, ionic, and corinthian orders. First, I will use the eye-tracking software over an image of each column capital on its own, afterwards I will run it again with all three images side-by-side. This process will help us discover which column order is preferred by the human eye, and why. I believe by doing these two comparisons we will learn which column order will draw the eye of its viewers, and how in-depth someone might look at the detailing of the capitals. I anticipate that the corinthian order may draw the most attention due to the higher level of detailing this capital contains. As a designer it is important to learn and understand what the human experience and interaction is with a building's design. To understand what your viewers prefer and how it makes them feel is important in the world of architecture. An architect doesn’t design for themselves, they design for others of the world, and thus, it is important to understand why people enjoy a certain amount of detailing, or proportionality. Although I’ve sampled at a small scale, it shows that there’s room for expansion into other aspects of design. I hope that through this research we can better understand why the classical orders are important to have in the world of design today and how they impact design in our world today.
Music and Emotion: Using Music as an Apparatus for Connection
Authors: Kimberly Lewin. Mentors: Anne Francis Bayless. Insitution: Utah State University. I have been exploring the relationship between connection, disconnection, and control, and I presented my research on these topics to three composers who wrote a piece based off of their interpretation. At URCO, I will perform one of these compositions.
What's That Building? Exploring Public Perceptions of Architectural Functionality Based on Form.
Authors: Sean Donner. Mentors: Brandon Ro. Insitution: Utah Valley University. A building’s function has historically been tied to its form. We see this in civic buildings, schools, churches, and homes. Many of those recognizable forms were abandoned with the modernist movement in the early twentieth century. Are these new forms still related to their functionality and can average people perceive a building’s functionality based on its form. Learning the opinions of the general public will enhance the architect’s ability to design for the people who will live and work in and around the buildings they design.This study aims to answer those questions by means of an online survey. To gain a wider demographic of survey takers, the survey is largely spread through social media where I have access to a wide variety of people across the globe and of differing generations and backgrounds. The survey has two types of questions. The first presents two pictures of buildings and asks the survey taker to tell which holds a specific function. The second question type presents a single building and four choices of building function. In both question types, all signage or other markings of building type were digitally removed from the photographs. The survey includes fourteen architectural functions ranging from single family homes to State Capitols. Each category includes traditional and modern examples. This variety in style will help to analyze whether there is a difference in the general public’s ability to perceive a building’s function if the building is traditionally designed or if it takes a more modern approach in design. Although this survey is still active, the expected results are as follows: Traditional forms are generally more easily discernable than modern designs. Some building forms are equally recognizable regardless of form. The stand outs from this list are schools and stores/shoppes.
Traditional Urban Resurgence: A Blueprint for Mental Wellness in Modern Cities
Authors: Jacob M Wendt. Mentors: Brandon Ro. Insitution: Utah Valley University. This research delves into the transformation of urbanization over the past century, triggered by the influence of modern architectural concepts, and the potential ramifications for mental health. The primary objective is to investigate the neurological effects of specific urban layouts, with a particular emphasis on safety, social interaction, and aesthetic appeal, to gain insight into the human mind's urban preferences. A survey will be designed to capture subjective preferences in which respondents choose one of two anonymous center streets that are subjectively safe and attractive. Participants will favor the traditional street layout over the contemporary one, suggesting a preference for design associated with enhanced safety, aesthetics, and social appeal, affirming the statement by Allen Jacobs that optimal streets have paramount desirability. In parallel, eye-tracking software is utilized to objectively analyze subconscious neurological responses to diverse urban layouts and elements, providing a more scientific perspective on human perceptions of urban environments by revealing more balanced heat maps, and signifying a focus on aesthetic elements and reduced attention to potential hazards. The combination of survey and eye-tracking data presents a comprehensive argument in favor of traditional urban planning principles and expected to underscore the prevalent preference for traditional urban designs over contemporary alternatives. In conclusion, this research sheds light on the enduring human desire for both safety and aesthetic beauty in urban environments. Anonymous survey data ranging from 50 to 100 participants, coupled with eye-tracking simulations indicating balanced heat maps, highlights the potential of traditional design to cultivate healthier and more harmonious communities. Future research may delve into physiological measures, such as heart rate monitoring, to further validate the stress-reducing benefits of traditional urban planning. The findings from this survey are expected to provide actionable insights that can inform urban planning decisions and strategies that foster improved mental wellness and community well-being.
Sonata in G Minor for Piano
Authors: George Wells. Mentors: Timothy Francis. Insitution: Utah Tech University. Cast in the form of a first-movement, 17th century Sonata, this is an original composition that explores different chord progressions out of dissonance to resolution. This solo piece for piano is structured similar to works typical of the classical time period. Piano repertoire from the classical era feature repeated patterns, simple melodies, and contrasting moods. Atypical of piano repertoire from the classical era are characteristics such as chromaticism, common-tone and augmented chords, polyrhythms, and hemiolas. From a framework of the sonata form with simple patterns and melodies, I explored the mood and color each method of resolution brings to music composition, classical and contemporary. From this work we can come away with a better understanding of the abstract emotion and character naturally found in musical resolutions that have been codified through music theory.
Neurological Links to Home Design Preferences: A Comparative Study using Eye-Emulation Software.
Authors: Thomas Cryer, Brandon Ro. Mentors: Brandon Ro. Insitution: Utah Valley University. ABSTRACT: This study seeks to understand the visual elements of home design that attract the human eye. Specifically, it aims to compare the visual appeal of traditional homes to modern homes using eye-tracking software. However, this study focuses solely on visual analysis, leaving the exploration of emotional and cultural factors for future research. The purpose is to understand the neurological connections between architectural design and human preferences, shedding light on which elements make homes visually appealing. In the mid-20th century, the architectural landscape shifted towards modernism, characterized by functionalism and minimalism. However, recent research suggests neurological links to architectural preferences that challenge modern design's dominance. This study is relevant today as it explores why people are drawn to traditional homes, considering the current preferences of professional architects. This research contributes to the understanding of how architectural aesthetics impact individuals and communities and offering insights into the neurological aspects that influence architectural preferences. The methodology involves analyzing six homes, three traditional and three modern. The analysis will be conducted using 3M Visual Attention Software individually on each home by tracking participants' eye movements, and then given a numerical ranking of 1-6 based on their visual appeal. Subsequently, a comparative analysis will identify the most and least visually attractive homes. Anticipated results from the software suggest traditional homes will score higher due to the "character," or the details that the eye looks, which are missing in modern architecture. The discussion will explore the idea that contemporary homes, by incorporating traditional elements such as proportion, may achieve higher appeal and last for generations of homeowners. Contemporary designs can evolve into "traditional" homes by aligning with the preferences discovered. By understanding what elements people are naturally drawn to, architects can create more appealing and lasting designs, thereby bridging the gap between modern and traditional aesthetics.
Mosques Through Different Lenses: Perceptions Across Cultures and Religions
Authors: Barrett Blake. Mentors: Brandon Ro. Insitution: Utah Valley University. This research project aims to explore the relationship between an individual's cultural and religious background and their perception of mosque architecture and experiences. Given the lack of understanding about the nature of mosques among non-Muslims, it is essential to investigate these perceptions to promote greater public awareness and interfaith understanding. The research methodology employs two approaches. First, it analyzes Nader Ardalan's work, "The Visual Language of Symbolic Form: A Preliminary Study of Mosque Architecture," to identify common architectural characteristics in mosques. This analysis is correlated with a survey to compare common elements of mosque architecture to respondents’ associations with the elements incorporated in mosque architecture. It is expected that the elements that most individuals associate with mosques are likely those that are most common. Second, an online survey assesses the influence of cultural, ethnic, linguistic, and religious backgrounds on individuals' perceptions of mosques. The survey covers familiarity with mosques, statements about mosque experiences, and demographics. Statements regarding mosque experiences are derived from Lindsay Jones’ book The Hermeneutics of Sacred Architecture: Experience, Interpretation, Comparison. Demographic questions include religion, ethnicity, and primary household language. Respondents are recruited through QR codes on the Utah Valley University campus, religious groups at universities, and online forums for diverse religious traditions. Responses from those who practice Islam are expected to align more closely than those from non-Islamic backgrounds. In summary, this research shows that some architectural features in mosques are likely to be universally recognized due to their commonality. It also highlights a strong connection between an individual's background and their understanding of Islam, mosque aesthetics, and expected mosque experiences. These findings can inform mosque design by promoting the use of recognizable architectural elements and can contribute to fostering interfaith awareness and understanding, ultimately supporting harmonious coexistence among diverse communities.
Carnegie Hall Performance
Authors: Annalicia Loveridge, Maren Daynes, Noah Guzman. Mentors: Donna Fairbanks. Insitution: Utah Valley University. This project includes the planning and execution of a Carnegie Hall performance featuring the Wolverine Piano Trio. Annalicia Loveridge, Noah Guzman, and Maren Daynes were the first-place winners of the 2023 American Protégé International Piano and Strings Competition in the College Students and Professional Musicians category. The performance will showcase the first movement of the Brahms Piano Trio No. 3.We will rehearse extensively leading up to the performance to ensure flawless execution of the selected piece. We aim to create an immersive musical experience for the audience, transporting them to a world of melody and harmony. The performance will be held in the Weill Recital Hall of Carnegie Hall, known for its remarkable acoustics and grandeur. Performers such as Lang Lang, Yo-Yo Ma, and Joshua Bell have all started their careers at Carnegie Hall. The Carnegie Hall performance is a milestone achievement for us as students and an opportunity to showcase our exceptional talent and passion for classical music to a global audience. It is a once-in-a-lifetime experience that promises to leave a lasting impression on us and bolster our professional goals.
Architectural Contextualism: How Context Shapes Building Perception
Authors: Kevin Hart. Mentors: Brandon Ro. Insitution: Utah Valley University. Context, in the realm of contemporary architecture, holds a significant role. It encompasses the information that conveys an understanding of ideas, scenes, or objects. In a world marked by increasing individualism, the consideration of contextual elements in architectural design often takes a back seat. The Royal Ontario Museum serves as a notable case study. The addition of the Michael Lee-Chin Crystal, contrasting with the traditional backdrop, has ignited debates regarding its compatibility with the existing context. This brings forth a critical question: How does altering the contextual surroundings impact people's perceptions?Furthermore, would the public's perceptions differ if the Crystal were the original building, with the traditional structure serving as the addition? This study delves into the role of contextual factors in shaping the architectural experience. Through a comprehensive survey featuring diverse architectural styles situated in various contexts, my aim is to discern preferences: whether individuals lean toward statement buildings or designs that naturally integrate with their surroundings. My research hypothesis suggests that people derive greater enjoyment from buildings that seamlessly integrate with their contextual environment.The implications of these findings are of significant value to architects and designers. They provide insights to facilitate informed design decisions that not only promote community cohesion but also elevate the public's appreciation of architectural structures.
Re-Examining Architectural Design: The Balance Between Simplicity and Complexity
Authors: Joseph Laudie. Mentors: Brandon Ro. Insitution: Utah Valley University. For an architect, choosing how simple and/or complex your designs are can be a difficult effort. It involves balancing various factors, including appearance, function, cost, time, context, etc. While one might state that a certain way is best, it can be difficult to know. For that purpose, this study will examine the question, “How does the perception of a space or structure change as it evolves from a simple to a more complex state?” The difference between these conditions may involve an increased presence of elements, such as motifs, ornaments, etc., gradually becoming more complex. These changes will be analyzed using eye-tracking software.In contemporary architecture, architects grapple with multifaceted considerations. They must combine the varied desires of clients, adapt to evolving technology's possibilities and constraints, prioritize sustainability and efficiency, adhere to budget limitations, stay attuned to cultural and aesthetic trends, meet functional programming requirements, and navigate site-specific constraints. All these factors influence the architect's decision-making process, guiding them toward either simplicity or complexity in their design approach.Because of the difficulty of this cumulative decision, the issue will be thoroughly examined to determine the true effect both simplistic and complex structures have on the everyday individual. This will be done by examining a single, 3-D-modeled room with progressively more complex states, involving more details such as windows, doors, and classical orders and elements. Photos of the respective conditions will be presented side by side and processed through eye-tracking software.It is expected that more complex spaces and conditions will draw attention more consistently. While the analyzed space will present varying states of detail, it is expected that the more complex and expressive setting will consistently demand attention. This conclusion will better inform future design decisions by architects to make spaces more appealing and conducive to the observer.
Interior Design Senior Capstone: The Grove
Authors: Abby Hoyal. Mentors: Kristen Arnold. Insitution: Weber State University. The United States is one of the most prominent locations involved in the exchange of children in human trafficking. There are very few outlets that take in recovered children help them receive the proper aftercare and help to gain an education to integrate them back into society. Research has shown that children learn most efficiently in spaces that are modular and flexible. In research conducted for habilitation centers for children, they discovered, “Planning flexibility and variability comfort children and parents, accessibility and emotionality for children visiting [these] centers.” (Kasper, Ilvitskaya, Petrova, Shulginova, 2019). It has also been found that learning levels are highest in spaces that allow the children to learn from their surroundings rather than by just the instruction alone. “An interior shall lead children to learn concepts from working with materials, rather than by direct instruction. [Interiors] should improve cognitive learning, promote independence, curiosity, decision-making, cooperation, persistence, creativity, and problem-solving.” (Manav, 2016). One of the key elements to properly educating children, as listed previously, is to promote independence. One of the ways that research has shown independence to be achieved through design is proper wayfinding elements should be implemented so that occupants do not have to rely on any other occupant to navigate the space. Researchers examined how different colors, light temperatures, and lighting brightness can provide a natural easiness to wayfinding for occupants. Results found, that “the use of cool colors and high brightness levels help people be spatially oriented.” (Hidayetoglu, Yildirim, Akalin, 2012). The Grove will be an Aftercare center that will provide refuge and educate child survivors of human trafficking in a modular environment that educates through the use of space and materials used, with an encouraging push for independence throughout the space due to proper wayfinding elements.
The McCune Mansion Hope Center
Authors: Morgan Watson. Mentors: Kristen Arnold. Insitution: Weber State University. In the United States, 1 child in every 26 seconds drops out of high school. Out of the 50 million children in America, that are school age, 15 million are unsupervised after school time. With children being at greatest risk between the hours of 3pm and 6pm, these statistics raise a huge red flag. This project’s purpose is to provide peace of mind to working parents, and success for children throughout their school experience and beyond. Research has proven that afterschool program environments are a successful tool used to positively shape and increase healthy behaviors and practices among children (Huang, 2013). School design can affect student behavior, development, and academic performance (Huang, 2013). A key factor in effective school environments is the appropriate use of color. Careful color application has proven to have positive effects on behavior and cognitive learning (Heliyon, 2022). In addition, children have a better school experience when given autonomy. Autonomy improves intrinsic motivation (Ford, 2016). Research suggests that wherever possible, design for autonomy be implemented as a way to support children’s growth and development (Sorensen, 2013). This can be applied through multi-purpose learning spaces and flexible classroom furnishings. Additional spaces for collaboration and creativity are needed to meet the needs of today’s students and hold their attention. Furthermore, autonomy in the classroom environment is supported by designated areas where children can express themselves and make the space their own. Potential areas for this include cubbies and classroom bulletin boards.
Investigating Porosity Defects in Printed Zones of Binder Jet 3D Printing
Authors: Madi Hancock. Mentors: Nathan Crane. Insitution: Brigham Young University. Binder Jetting (BJ), a type of additive manufacturing (3D printing), creates parts through a multi-layered process. Particles are bound together using tiny droplets of liquid binder. Binder jetting has advantages over other additive manufacturing methods including relatively low costs, fast build rates, and a variety of possible printable materials. However, porosity defects commonly seen in BJ printed parts limit the technology's usefulness in demanding industries. There are several proposed causes of these porosity defects, including poor powder compaction in printed areas, residual carbon from the binder, and powder rearrangement due to binder droplet impact. The relative importance of these factors is poorly understood. This study will compare observations of porosity in printed and unprinted regions of Stainless Steel 316 BJ samples to better understand the possible modes of porosity defects.
Facilitating Public Engagement with Academic Research Through Deliberate Outreach Methods
Authors: Lydia Beazer, Trevor Carter, Audrey Christiansen. Mentors: Larry Howell. Insitution: Brigham Young University. Outreach is the process of deliberate engagement with a range of diverse communities. It is a vital adaptation in an increasingly digital world, acting as a vehicle to extend the impact of work done in research labs. Increased exposure can attract and inspire future engineers and lead to new opportunities for research. Previously, BYU’s CMR lab invested in consistent outreach projects and collaborated with prominent social media influencers, developing a seven-step plan to connect the public with academic research. Recently, these strategies were implemented in a new collaboration with influential YouTuber Mark Rober. In preparation for the anticipated increased visibility from this project, the lab organized a team dedicated to establishing a consistent and professional digital presence. For months, this team undertook preliminary steps that included updating outdated files, designing appealing and shareable makerspace content, and expanding the archive of publicly accessible resources. Having laid this groundwork, the lab was able to influence the impact of this high-profile collaboration, resulting in measurable increase in several metrics related to exposure and positive interaction with lab research.
Exploring MSR Salt Thermal Conductivities for Advanced Clean Energy
Authors: Tyler Hamm, Jake Numbers, Ryan Ruth, Hunter Pitchford, David Allred, Troy Munro. Mentors: David Allred. Insitution: Brigham Young University. Molten salt reactors (MSRs) are being investigated for use in clean energy to replace the common pressurized-water nuclear reactors currently in the United States. MSRs use high-temperature, low-pressure molten salt coolant to provide safer and more efficient energy production. However, many MSRs salt compounds lack tested thermophysical properties, including thermal conductivity. Our research focuses on experimentally measuring MSR salt thermal conductivities using a modified transient hot-wire technique. We use a needle probe, equipped with a thermocouple and heating wires, immersed in molten salt compounds at temperatures running from 400–700℃. Thus far, we have tested the thermal conductivity of LiCl-NaCl (eutectic and 91%LiCl composition), NaCl-KCl (eutectic), LiCl-KCl (eutectic), LiF-NaF (eutectic), and FLiNaK. These test results indicate higher than predicted thermal conductivities and consequential further investigation into the physical properties of our probe to improve the experimental design and data evaluation. This research and improved experimental method will provide accurate and precise experimental results of MSRs molten salt thermophysical properties to populate the national database used by MSR developers which will help further the possibilities and practicalities of MSR technology.
Thomas S. Monson Center Building Analytique
Authors: Bronwyn Brown. Mentors: Ben Felix. Insitution: Utah Valley University. Architectural Analytique of the Thomas S. Monson Center Building with the Scamozzi Order at University of Utah
Venetian Elegance: Harmonizing Heritage and Innovation on the Grand Canal
Authors: Samuel Weisler, Colton Korpi, Josh Lythgoe. Mentors: Aliki Milioti. Insitution: Utah Valley University. The Venice Project addresses the challenge of blending contemporary buildings into the well-established urban environment of Venice, a city well known for its rich architectural heritage. In a city with canals in the place of streets, where motorboats and gondolas are the main mode of transportation, seasonal flooding at high tide continues to become a greater environmental concern. The research centers on the documentation and preservation of these valued characteristics through an analytical and interpretative research approach. The primary focus is on aspects such as perception, harmony of open and enclosed space, and the seamless integration into the urban and environmental fabric.The unique design constraints were taken head on in creating the one of a kind ‘Ca’Meriggiare’, a luxury hotel that enriches Venice’s heritage. In lieu of fighting against them, the design embraces the environmental challenges posed by the periodic flooding of the city and transforms them into an integral part of the design. For instance, the flooding is harnessed to create a charming, arcaded entrance exclusive to hotel guests arriving by boat, providing a unique entry sequence unphased by rising or falling water levels.The expected result of the research is a successful fusion of a contemporary hotel with the rich historical context of the city. The innovative design allowed the periodic flooding to become an integral part of the hotel that added a charm and uniqueness to the guest experience. Ca’Meriggiare stands as a testament to the harmonious integration of historical preservation with environmental adaption that honors Venice’s heritage. This luxury hotel case study offers a holistic perspective on theoretical and design considerations, emphasizing the importance of integration within the environmental dimensions. Rather than viewed as an isolated instance, it provides an overarching framework for innovation that will apply to the evolution of contemporary architecture.
Exploration of Bi-Stable Tensegrity Models with Differing Stiffness Modes
Authors: Harrison Denning, Spencer Thompson. Mentors: Jeff Hill. Insitution: Brigham Young University. Traditionally, tensegrity structures have been a subject of interest for their architectural beauty and high strength-to-weight advantage. The field of tensegrity research has since grown to include robots and more complex latticed structures. More recently, tensegrity has been used to accurately model many biological systems, such as joints and spines. Part of this modeling has involved trying to better estimate these biological systems utilizing bi-stable and multi-stiffness tensegrity structures. Our research takes a closer look at how to build and optimize bi-stable tensegrity structures with multiple stiffness modes. By optimizing tensegrity geometry or spring-cable connections between rigid members it is possible to significantly change the models’ overall equivalent stiffness between stable modes. Our research delves into how changes in the shape of rigid members create differences in overall structure geometry between stable modes and a change in stiffness between the two modes. We also discuss optimal spring cable connections and optimal individual spring constants to further increase stiffness differences between stable positions. Furtherance of this work will involve building larger and more robust models to be used on the body as wearable structures. The application of this research heads towards the development of wearable tensegrity braces with the ability to switch between higher or lower stiffnesses to cater to the needs of the wearer.