Digital Commons Network^™

Noteit Ios App, Waylin W. Wang, Gurjeevan Bains

Computer Science and Software Engineering

Miscommunication is a common struggle that many students face in today’s world, despite the significant technological progress that we have made. With NoteIt, we aimed to solve this issue, by allowing students to join groups based off of the courses that they are enrolled in during the current quarter. Within the app, they can send and receive messages and events from everyone else in the group, or post private reminders to themselves. Communication can range from assignment clarification to exam preparation tips. Overall the development of the application went relatively well, despite some roadblocks along the way. We were satisfied …

Streaming Mysql Database Activity To Aws Kinesis, Chris I. Voncina

Computer Engineering

Connecting Amazon RDS MySQL engine with AWS Kinesis is a feature that RDS customers have often requested. A good example indicating customer demand is demonstrated on AWS’ forum post at https://forums.aws.amazon.com/thread.jspa?messageID=697516.

Upon completion, my project will enable Amazon RDS to pick up the MySQL open source project, integrate the MySQL plugin with Amazon RDS MySQL and deliver this feature to Amazon RDS MySQL customers. Other open source engine projects can follow and build upon my project.

Amazon Aurora delivered similar capability to the project. See details at https://aws.amazon.com/about-aws/whats-new/2016/10/amazon-aurora-new-features-aws-lambda-integration-and-data-load-from-amazon-s3-to-aurora-tables/

Portable 6 Lead 4 Electrode Ekg, Cody Magnuson, Wes Archbold

Electrical Engineering

This project focused on designing a small, portable, 6 lead 4 electrode electrocardiogram (EKG) machine with enough accuracy and resolution to successfully diagnose clinical issues. The electrical design used to measure signals originating from the heart can be broken up into three stages. The first stage is the human device interface. Next, is the analog block that filters out common mode noise and conditions the signal for digital encoding using instrumentation amplifiers, a right leg circuit, high pass, low pass, and an amplifier. This circuit filters all frequencies above and below the frequency band of meaningful data (1-160Hz), rejects signals …

The Relationship Between Nonverbal Communication And Patient Willingness To Comply In Framed, Low-Risk Medical Settings, Rachael A. Katz

Communication Studies

This study discusses framing and communication tactics in the medical field. It specifically aims to understand whether expertise and empathetic nonverbal communication impacts patient willingness to comply with physician directives in gain- and loss-framed medical settings. Framing has been studied in many settings, including medical situations, and has been found to impact decision-making. This experiment utilizes college-aged individuals to examine Meningitis, a disease where the most at-risk group is college aged young adults. Participants were exposed to one of six conditions to examine whether perceived expertise/empathy in their scenario impacted willingness to comply with the doctor directives. Although no mediation …

Usa Boccia Ball Ramp For Athletes With Quadriplegia, Alissa A. Koukourikos, Matthew Lee, Nathan Bernards

Mechanical Engineering

In this report, the design process in creating an assistive device for Boccia Classification 3 (BC3) players is outlined. The initial research steps, including research into the rules of the game, capabilities of the players, and existing products is documented to show where ideas for the product stemmed from. This transitions into requirements that the sponsor requested, and preliminary designs and ideas for the product. Finally, this report explains the details of the final design, which has been analyzed for safety, ease of use, and ability to function under different conditions. The processes of manufacturing and testing will also be …

Real Time And High Fidelity Quadcopter Tracking System, Tyler Mckay Hall

Computer Engineering

This project was conceived as a desired to have an affordable, flexible and physically compact tracking system for high accuracy spatial and orientation tracking. Specifically, this implementation is focused on providing a low cost motion capture system for future research. It is a tool to enable the further creation of systems that would require the use of accurate placement of landing pads, payload acquires and delivery. This system will provide the quadcopter platform a coordinate system that can be used in addition to GPS.

Field research with quadcopter manufacturers, photographers, agriculture and research organizations were contact and interviewed for information …

Effects Of Atomic Oxygen On The Vacuum-Induced Mass Loss Properties Of A Variety Of Spacecraft Materials, Tyler Harty

Master's Theses

The space environment influences spacecraft design and material selection in many ways. Two aspects of the space environment that were of interest for this research are the vacuum and atomic oxygen (AO) environments. This project used the outgassing testing chamber and the AO chamber in the Cal Poly Space Environments lab to test multiple common spacecraft materials and determine whether AO affects the outgassing properties of those materials. This research has relevant applications in the design and material selection for spacecraft in low-Earth orbits. AO and outgassing are both known to be individual contributors of spacecraft material mass loss and …

Whitespace Exploration, Jason Lloyd Daniel

Master's Theses

As engineering systems grow in complexity so too must the design tools that we use evolve and allow for decision makers to efficiently ask questions of their model and obtain meaningful answers. The process of whitespace exploration has recently been developed to aid in engineering design and provide insight into a design space where traditional design exploration methods may fail. In an effort to further the research and development of whitespace exploration algorithms, a software package called Thalia has been created to allow for automated data collection and experimentation with the whitespace exploration methodology.

In this work, whitespace exploration is …

Rf Front End For An Integrated Silhouette Capture And Boundary Detection Frequency Modulated Continuous Wave Ultra-Wideband Radar System For The Extension Of Independent Living, Adrian Smet

Master's Theses

Limitations of current eldercare monitoring systems leave a need for new solutions. A monitoring system based on a frequency modulated continuous wave ultra-wideband short-range radar is proposed for this application. The complete proposed monitoring system is comprised of four blocks: boundary detection, silhouette capture, human identification, and data transmission. This paper develops the RF front end hardware for the silhouette capture subsystem.

System requirements are derived for the silhouette capture subsystem. An architecture for the RF front end is designed, and required individual component specifications are determined. Components are selected off the shelf or custom designed for each socket. Full …

Eeg Characterization During Motor Tasks That Are Difficult For Movement Disorder Patients, Adam Joshua Aslam

Master's Theses

Movement disorders are a group of syndromes that often arise due to neurological abnormalities. Approximately 40 million Americans are affected by some form of movement disorder, significantly impacting patients’ quality of life and their ability to live independently. Deep brain stimulation (DBS) is one treatment that has shown promising results in the past couple decades, however, the currently used open-loop system has several drawbacks. By implementing a closed-loop or adaptive DBS (aDBS) system, the need for expensive parameter reprogramming sessions would be reduced, side-effects may be relieved, and habituation could be avoided. Several biomarkers, for example signals or activity derived …

Interfacing A Hirudo Medicinalis Retzius Cell With Insulated Gate Of Mosfet, Rachel M. Smith

Master's Theses

Much work has been done to study the external stimulation of nervous tissue as well as the transmission of neural signals to electronics. Peter Fromherz was one of the pioneers in this area of electrophysiology, with a series of experiments in the 1990s that aimed to characterize and optimize the interface between neural tissue and transistors. In this thesis, Kurt Sjoberg and I interfaced a Retzius cell isolated from a Hirudo medicinalis ganglion with the insulated gate of a MOSFET. The goal was to see change in membrane potential that could be related Fromherz’s original 1991 work. Our experimental setup …

Hi 5 Weed Housing, Paul J. Ponciano

Architectural Engineering

No abstract provided.

Gns Weed Housing, Galen Amick, Sarah Pascual

Architectural Engineering

GNS requested assistance from Cal Poly’s College of Architecture and Environmental Design to design a new housing complex for the site. In response, Cal Poly formulated an interdisciplinary course comprised of architecture, construction management, and architectural engineering students. The class is based around the concept of Interdisciplinary Product Delivery (IPD), which allows for a cohesive melding of disciplines that fosters a holistic and efficient design process. Our team consisted of two architectural engineering students, two architecture students, and one construction management student. Before the design began, our team put together a list of goals and objectives for the project, which …

Structural Calculations For A Library In The Dominican Republic With Mission Twentyfive35, Erika Dileva

Architectural Engineering

The Amoveo Group in collaboration with Mission TwentyFive35 focuses on the northern region of the Dominican Republic, “El Cibao”, to share the Gospel and plant churches by implementing a sustainable solution that addresses the community’s four needs. Mission TwentyFive35 identifies the lack of clean water, food sustainability shortcomings, limited access to primary healthcare and education, and the absence of technical and vocational job training as the primary contributors to these extremely impoverished communities.

This project provides structural calculations for a library within Mission TwentyFive35’s vocational campus near Santiago, Dominican Republic. In partnership with a nonprofit humanitarian organization called Journeyman International, …

Ground Fault Detection For Delta-Delta Ungrounded Systems, Daniela V. Borjas

Electrical Engineering

This senior design project consists of a table top model that replicates an industrial three- phase electrical distribution system, capable of detecting ground faults and measuring load fluctuations in a delta-delta ungrounded transformer configuration. This project seeks to mimic an electrical distribution system operating at 12 kV on the primary and 480 V on the secondary. The model uses smaller nominal voltages consisting of 240 V on the primary and 24 V on the secondary. Current and voltage signals derived from the system connect to a Schweitzer 751-A protective relay which provides the load monitoring and ground fault detection scheme.

Flexible Custom Electric Skateboard, Caleb Adam Kelsay

Electrical Engineering

At Cal Poly traveling long distances only accessible by foot such as across campus or from the car park to class can be tiring and time-consuming. While not physically demanding, the trek consumes time in our tight college life schedule. To improve our time efficiency this project provides a relatively lightweight, powered solution to quickly and effectively travel long distances while maintaining full control and safety even on hills, a current limitation of traditional skateboards.

This electric skateboard includes the battery capacity to travel all around campus on a single charge with a compact and flexible skateboard design that provides …

Dc-To-Dc Buck Converter, Kyle Christopher Roman

Electrical Engineering

The growth of sustainable energy requires many components to work in harmony creating one efficient and effective system. Sustainable energy generation that produces a DC current varying in voltage requires a subsystem to convert voltage to a practical and usable value. The DC to DC Buck converter converts high DC solar generated voltage to a 12V output. This Modular -Level power electronic (MLPE) device performs as a solar charge controller for small lithium ion batteries. Fluctuating voltage levels generated by Photovoltaic cells makes the solar controller a critical part of the solar system. Regulating the DC voltage allows safe and …

Dual Method Headphone Amplifier, Joseph S. Gross, Timothy P. Murphy

Electrical Engineering

Many high impedance headphones underperform their full potential when directly connected to the audio source. Amplifiers boost the audio signal and provide the headphones with sufficient power to ensure their maximum performance. The invention of transistors caused vacuum tube implementation to decline, leaving many audiophiles unsatisfied with the transistor’s sound signature. Vacuum tubes and transistors both amplify signals, however the distinct “tube sound” has vanished.

We have designed and created a product where the user selectively switches between solid-state transistor and tube amplification to compare the sound signatures of each amplification method. The ability to switch between the solid-state and …

Optimal Layout For A Component Grid, Michael W. Ebert

Computer Science and Software Engineering

Several puzzle games include a specific type of optimization problem: given components that produce and consume different resources and a grid of squares, find the optimal way to place the components to maximize output. I developed a method to evaluate potential solutions quickly and automated the solving of the problem using a genetic algorithm.

Museum Wave Tank Design, David James Streng, Lisa Michelle Dischinger, John Frederick Niemoller

Mechanical Engineering

The Santa Maria Discovery Museum would like to add a tsunami wave tank to be one of their demonstrations. The wave tank needs to draw the attention of their young crowd and be educationally informative about the shapes and effects of waves. As this is a museum demonstration for children, the structure, user interface, and wave making mechanism must be durable.

We are a senior project team from California Polytechnic State University that worked on this project with Allan Hancock College and Stanford University. We created waves by rapidly moving a plunger vertically in the water column. This project allows …

Putter Design - Kronos Golf, Joey Gavin, Eric Hanaman, Alex Bartlett

Mechanical Engineering

Gingham Golf, with the sponsorship of Kronos Golf, has developed three putter face inserts to act as a basis on which to innovate club design. Gingham Golf took a step back from traditional putter design and approached the putter through new aesthetic and engineering lenses. An extensive process of ideation and iteration, yielded three different face materials, aiming to test the feel and performance of the face inserts. A series of subjective and technical tests were constructed to weigh the face inserts against each other and industry competition. The results of the tests will be analyzed to select best putter …

Thermal-Fluid Dynamic Model Of Luge Steels, Brandon Stell

Master's Theses

Luge is an Olympic sport in which athletes ride feet-first on sleds down an ice-covered track. Competitors spring from the starting position and accelerate their sled by paddling with spiked gloves against the ice surface. Once the Luger leaves the starting section, their downhill motion is solely propelled by the effects of gravity. Athletes compete, one after the other, for the fastest time. Runs can differ by as little as a thousandth of a second, meaning that every minor sled adjustment, change of line choice, and shift of body position is critical. In the past, the sport of Luge has …

Appearance And Spectroscopic Characterization Of Automotive Coatings For Forensic Purposes, Kimberly Kha

Master's Theses

Automotive paint is a common type of trace evidence in the forensics community due to the prevalence of vehicular collisions. Forensic examinations of these samples typically involve visual inspection for physical properties such as color. However, these observations are subject to variability due to observer and environmental factors. Therefore, objective methods of color description based on spectrophotometry using coordinate systems are now recommended by US forensics standards in addition to chemical analysis for binder and pigment information. Color meters and microspectrophotometers (MSP) are common instruments for quantifying color descriptions using opponent coordinate systems such as the International Commission on Illumination …

The Role Of Soil Stiffness In Reverse Fault Rupture Propagation, Moises I. Buelna

Master's Theses

A nonlinear Mohr-Coulomb constitutive model with a strain dependent yield surface and non-associated flow was employed to study the plastic soil properties which affect the rate of surface fault rupture propagation in reverse events. These numerical simulations show a trend for soils with higher stiffness to have a higher rate of rupture propagation. Additionally the study shows the effects of strain softening and hardening on the rate of rupture propagation. Soils which strain harden exhibiting ductile behavior typically require more basal offset to rupture to the surface than soils which strain soften exhibiting brittle behavior. These results agree with our …

Manufacturing And Instrumentation Of An Open End Compressed Air Shock Tube, Josue O. Ruiz

Master's Theses

Shock tubes have been used extensively to study shock wave structures and high speed flow features. The purpose of constructing this open end shock tube was to have the ability to produce shock waves in a laboratory setting but also understand the exit flow coming out which can be applied to future studies that are beyond the scope of this work. This undertaking would require that an open end shock tube be built and instrumented with PCB Integrated Circuit Piezoelectric (ICP) Pressure Sensor Model 113B24 that would then be connected to a PCB Model 482C05 Signal Conditioner with the purpose …

Corporate Social Responsibility: An Analysis Of Its Impact On Large Companies And Society, Alexandra Marie Gray

Journalism

The success of a business is often determined by the economic status it has built itself to, or the magnitude of its renowned distinction across society. The topic of CSR is often overlooked as a minor aspect of helping the business grow.

Corporate Social Responsibility (CSR) can be characterized into many facets. Some, when thinking of the topic, will think of giving back to its community. Others will associate it with keeping a modest supply chain or healthy working conditions (Agaard, Valente, & Rasmussen, 2007). Either way, any instance where a business acts on social activism and producing for the …

Graduate Internship Report - Las Plumas High School, Richard Darrach

Agricultural Education: Graduate Internship Reports

This internship/project report includes validation documents required in meeting the quality criteria for secondary-level programs of instruction in agriculture. The documents are concurrently used for the Agriculture Incentive Grant review process at Las Plumas High School conducted by representatives of the California Department of Education. The internship included the construction of a facility to house and care for fair livestock. Accompanying the project report are photos illustrating the construction steps and educational processes utilized to complete the project.

Residential Housing Project - Weed, Ca, Spencer Guy Shobe

Architectural Engineering

No abstract provided.

Housing For Weed, Ca, Ariana Alaniz

Architectural Engineering

No abstract provided.

Commercial Application Of Sustainable Self-Consolidating Grout, Adrian Saraf, Nick Knowles

Architectural Engineering

No abstract provided.