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Analysis Of The Effects Of Adaptive Ramp Metering On Measures Of Efficiency With A Proposed Framework For Safety Evaluation, Jacky Loh

Master's Theses

Adaptive ramp metering (ARM) is a widely popular intelligent transportation system (ITS) tool that boasts the ability to reduce congestion and streamline traffic flow during peak hour periods while maintaining a lower implementation cost than traditional methods such as freeway widening. This thesis explores the effectiveness of ARM implementation on an 18 mile segment of the Interstate 80 (I-80) corridor in the Bay Area residing in northern California. Smaller segments of this particular segment were analyzed to determine the effective length of ARM on efficiency at various lengths originating from a known bottleneck location. Efficiency values were also compared against …

Carbonate Chemistry Characterization In A Low-Inflow Estuary With Recent Seagrass Loss, Jolie Higgins

Master's Theses

Estuaries are dynamic environments that are strongly affected by natural variability, as well as direct and indirect anthropogenic impacts. A better understanding of the drivers of carbon fluxes and biogeochemical variability in estuarine systems is needed, particularly with the increasing threat of ocean acidification. Morro Bay in Central California is a small nationally protected estuary, with seasonally low freshwater inputs. Since 2007, the bay has experienced a significant loss of native seagrass, Zostera marina, which is an important component of the marine ecosystem. Because seagrass photosynthesis decreases carbon dioxide and increases oxygen in the water column, the loss of seagrass …

A Predictive Modeling Approach For Assessing Seismic Soil Liquefaction Potential Using Cpt Data, Jonathan Paul Schmidt

Master's Theses

Soil liquefaction, or loss of strength due to excess pore water pressures generated during dynamic loading, is a main cause of damage during earthquakes. When a soil liquefies (referred to as triggering), it may lose its ability to support overlying structures, deform vertically or laterally, or cause buoyant uplift of buried utilities. Empirical liquefaction models, used to predict liquefaction potential based upon in-situ soil index property measurements and anticipated level of seismic loading, are the standard of practice for assessing liquefaction triggering. However, many current models do not incorporate predictor variable uncertainty or do so in a limited fashion. Additionally, …

A Homegrown Dsmc-Pic Model For Electric Propulsion, Dominic Charles Lunde

Master's Theses

Powering spacecraft with electric propulsion is becoming more common, especially in CubeSat-class satellites. On account of the risk of spacecraft interactions, it is important to have robust analysis and modeling tools of electric propulsion engines, particularly of the plasma plume. The Navier-Stokes equations used in classic continuum computational fluid dynamics do not apply to the rarefied plasma, and therefore another method must be used to model the flow. A good solution is to use the DSMC method, which uses a combination of particle modeling and statistical methods for modeling the simulated molecules. A DSMC simulation known as SINATRA has been …

New England Slave Trader: The Case Of Charles Tyng, Paul J. Michaels

Master's Theses

Charles Tyng has been heralded as an American hero after the posthumous publication of his memoir, Before the Wind: The Memoir of an American Sea Captain, 1808-1833, in 1999. Recent research involving British Treasury report books from the nineteenth century suggest otherwise – that Tyng actively promoted and was engaged in the illicit trade of African captives. A Boston Brahmin, Tyng applied the lessons of his time at sea with Perkins & Company, the opium trading firm, to his occupation as an agent of notorious slave trading firms in Havana. This paper uses as evidence records of the captures …

Dynamic Response Validation Of Cubesats Through Testing And Finite Element Analysis, Peter Rivera

Master's Theses

During a rocket launch, satellites withstand large dynamic forces due to vibrations that are transmitted from the launch vehicle. As such, they must undergo testing to ensure that their function is not impaired by such forces. CubeSats are cost-effective nanosatellites, and like their larger counterparts, undergo dynamic testing for launch qualification. While dynamic analysis can done on a CubeSat alone, other assembly constituents also affect the response, and including them in the analysis can provide insight on the true dynamic behavior of CubeSats. To show this, the work presented here recreates a vibration test setup using Finite Element Analysis (FEA) …

Compact Rake Boundary Layer Data System Module, Nathan Jeffry Hoyt

Master's Theses

This Thesis describes the design, assembly, programming, and evaluation of the BLDS-M-RAKE, the newest addition to the family of devices called the Boundary Layer Data System (BLDS). The BLDS-M-RAKE is a continuation of the BLDS-M series of devices, a modular approach with updated electronics for boundary layer measurements. The BLDS-M-RAKE records data from a number of sensors, intended to be routed to an array of probes, or rake. Through preliminary testing, a new flexible manifold design from molded silicone and the hardware used on the RFduino development boards from the BLDS-M proof-of-concept modules were validated for use in the final …

Development Of A Model And Imbalance Detection System For The Cal Poly Wind Turbine, Ryan Miki Takatsuka

Master's Theses

This thesis develops a model of the Cal Poly Wind Turbine that is used to determine if there is an imbalance in the turbine rotor. A theoretical model is derived to estimate the expected vibrations when there is an imbalance in the rotor. Vibration and acceleration data are collected from the turbine tower during operation to confirm the model is useful and accurate for determining imbalances in the turbine.

Digital signal processing techniques for analyzing the vibration data are explored and tested with simulation data. This includes frequency shifts, lock-in amplifiers, phase-locked loops, discrete Fourier transforms, and decimation filters. The …

Dna And Protein Sequence Analysis Of Neuronal Markers Neuronal Nuclei (Neun) And Doublecortin (Dcx) In The Northern Pacific Rattlesnake (Crotalus Oreganus) And Western Fence Lizard (Sceloporus Occidentalis)., Brett M. Vassar

Master's Theses

Neuronal Nuclei (NeuN) and Doublecortin (DCX) are neuron specific proteins that are used in histological studies of brain structure in a variety of vertebrate taxa.Antibodies against NeuN (anti-NeuN) bind to the Fox-3 protein, an RNA binding protein common in mature neurons. Anti-DCX labels a microtubule-associated protein expressed in actively dividing neural progenitor cells and migrating neurons. The DCX gene encodes a protein that is well conserved across mammalian, avian, and a few reptilian species, therefore anti-DCX staining has been used successfully across a range of vertebrate taxa. Successful neuronal staining using anti-NeuN has been demonstrated in mammals, birds, and the …

Snoring: A Noise Defect Prediction Datasets, Aalok Ahluwalia

Master's Theses

Defect prediction aims at identifying software artifacts that are likely to exhibit a defect. The main purpose of defect prediction is to reduce the cost of testing and code review, by letting developers focus on specific artifacts. Several researchers have worked on improving the accuracy of defect estimation models using techniques such as tuning, re-balancing, or feature selection. Ultimately, the reliability of a prediction model depends on the quality of the dataset. Therefore effort has been spent in identifying sources of noise in the datasets, and how to deal with them, including defect misclassification and defect origin. A key component …

The Proteomic Response Of Northern Elephant Seal (Mirounga Angustirostris) Pups To Physiological Stress During Development, Melissa P. Voisinet

Master's Theses

Background: Northern elephant seals transition from terrestrial nursing pups to pelagic foraging juveniles in a short period of just 8-12 weeks. During the post-weaning period, pups rely solely on the energy reserves gained during nursing for their caloric demands and water supply. The prolonged absence of food after weaning is the first of many fasts for which the seals have evolved adaptations such as decreased urine production and increased blubber reserves. The stressors experienced from learning to dive for the first time are also stressors that they will experience frequently as an adult and for which they have evolved adaptations. …

In-Plane Cyclic Behavior Of A Steel Mesh Reinforced Cob Wall, Julia Fremuth Sargent

Master's Theses

This thesis presents the results from in-plane cyclic testing of a reinforced cob wall. Cob is an earthen building material composed of sand, clay, straw and water. Cob is typically constructed with no steel reinforcement; however, the California Building Code requires reinforcement in all buildings for resisting seismic forces. The purpose of this thesis is to provide additional technical data to integrate cob into the building code.

Test results are reported for a 7’ x 8’ x 14” wall with two layers of welded wire steel reinforcement constructed on a reinforced concrete foundation. In-plane cyclic loading was performed on the …

A Paper-Based Elisa Device For The Rapid Detection Of Ischemic Stroke, Andrea Elisabeth Larsen

Master's Theses

Diagnosing an ischemic stroke quickly and accurately is essential for appropriate treatment and results in more effective management of the stroke, leading to better patient outcomes. Specifically, the determination of ischemic versus hemorrhagic stroke leads to critically different treatment paths, which would be potentially fatal if administered incorrectly. Currently, ischemic strokes are diagnosed through a series of tests, including a physical examination, CT scans, and a panel of blood tests to exclude hemorrhagic stroke or other similarly presenting conditions, in order to administer tPA (the main treatment) within the three hour window.

The discovery of biomarkers, molecules which are upregulated …

Cej Ankle Support Report, Christine Prothe, James Baldwin, Erik Espinoza

Biomedical Engineering

This document provides information about an ankle support device designed to allow for ankle dorsiflexion and plantar flexion. In this document the product’s specifications, objectives and expectations are outlined. Included in this document is background information, stage gate process, prototype design development and considerations, and qualification requirements.

Sand Foot: A Prosthesis For Walking On Sand, Samantha A. Galicinao, John Dewing, Daniel Dugan Dotson, Christopher Urasaki

Biomedical Engineering

This critical design report describes the product development of a prosthesis for use on sand. Quality of Life Plus (QL+), a national non-profit organization aimed to develop prostheses for veterans and people with disabilities, introduced this project and its accompanying challenger, Sgt. Brady, to Cal Poly’s Interdisciplinary Senior Project class in September 2018. After consulting with Sgt. Brady and QL+ and performing extensive research, the Sand Foot team defined customer requirements and engineering specifications to meet these requirements. Comfortability, durability, and sandproof were key customer requirements. Several conceptual models were brainstormed and a final design was selected based on the …

Utilization Of Data Analytics In The Buyout Process, Andrew William Dowdle

Construction Management

This is a qualitative research project designed to analyze the feasibility of using data analytics in the buyout process. The research methodology for the paper is presented. A series of interviews with industry professionals were conducted to gather data for this paper. These interviews targeted various fields relating to the topic, including; data analytics, information systems, and construction management. Themes that emerged in these interviews include industry application, data collection, the buyout process, similar applications, and subcontractor evaluation. Insights into how data analytics in the buyout process would affect the industry are also present in this paper. These preliminary results …

Cal Poly San Luis Obispo Bridge House Remodel Project, Severin B. Elste

Construction Management

The Bridge House, located in Poly Canyon, was originally constructed in 1968. Its original purpose served as a seismic activity lab for Architectural Engineering (ARCE) students. I joined a team of 4 ARCE students, making this an interdisciplinary project. There have been a few other groups who have tried to complete this project but have always fallen short. With the calculations and structural drawings provided by the ARCE students, we had a design and plan to fabricate the hand railings. We have completed 13 handrails, with four already installed on the structure by another group, that have now replaced the …

Interim Field Guide For Construction And Testing Of Concrete Shear Wall With Added Frp Layer, Carlos Alberto Espitia

Construction Management

In Los Angeles, many of the hospitals are no longer up to code as they were built in the 1970’s. The shear walls that the hospitals were constructed on stand to experience major failures in the event of a seismic event and this is the issue that this student research team was assigned with. This project was to design, procure, and construct all necessary constraints to be able to test a wall that is fundamentally similar to that of the sheer walls in these hospitals. Once this was complete the goal was to test two walls with an added FRP …

Coffey Park - Is It Worth Rebuilding Homes Or Should Fire Victims Look To Modular Housing?, Shelby A. Hession

Construction Management

In October 2017, Coffey Park, a neighborhood within the city of Santa Rosa, CA, experienced mass destruction from the Tubbs Fire. Most of the neighborhood was burnt down, leaving fire victims with empty lots that they need to decide what to do with. For the average person, being well versed in the construction process and the different methods that can be used in the recovery process is rare. This paper is a tool to provide those in fire recovery with all of the information they will need in one place. Both modular and traditional stick-built housing are explored in this …

Ada Code Education In The Construction Management (Cm) Curriculum, William Joseph Cefali

Construction Management

The Americans with Disabilities Act Standards for Accessible Design is becoming an integral part of construction. On many jobsites, recent graduates may not have enough knowledge to adequately catch and fix ADA compliance problems before they become a critical issue. With nearly all students and graduates going to work on projects governed by this code, knowledge of these codes, where to find them, and how to apply them is essential for graduates. Construction Management students believe this information would be very valuable to learn in school, and critical information to help them with their careers when they enter the industry. …

Inception Through Inspection: Quality Control In The Simspon Strong Tie Materials Demonstration Lab, Allyson G. Forster

Construction Management

The purpose of this senior project is to create a quality control program in the Simpson Strong Tie (SST) Materials Demonstration Lab using BIM 360. The goal of this program is to help streamline the building process of the six-foot by eight-foot tiny home in Residential Construction Management. The SST laboratory activities have been developed in the true spirit of “learn by doing” and serve as a way for Construction Management (CM) students to interact with the building process directly. Students in the CM department are taught that quality begins at the inception of a job and should be monitored …

Incorporation Of A Leed Green Associate Exam Prep Course Into The Construction Management Tech. Elective Selection, Jason Gendron

Construction Management

Since the development of LEED began in 1993, the construction industry has gradually been incorporating these certificates into every aspect of the field, predominantly the Commercial sector. With LEED becoming a major element impacting nearly every project, it is crucial for individuals to fully understand what LEED encompasses. As greater numbers of professionals in the industry have begun to strive for their LEED Accreditations, it has become apparent that it is far easier to prepare for these exams while in college when individuals have more time to do so rather than during employment. This project is an evaluation of the …

Haiti Transitional Home: Solar Panel System Design, Kasey Riese Hetzel

Construction Management

Haiti is located in a region with optimal access to the sun’s rays, but not enough resources to make use of them. While the country is known for its limited access to electricity and unreliable power quality, it has the potential to become a renewable energy powerhouse. Providing a safe place for families to reunite under one roof, that runs solely on solar power is the ultimate goal of this project. Not only designing the most efficient system, but finding which products are available in country, and which products would be more cost effective to ship internationally was the intent …

Revision Of The Archicad Manual For Cm 115, Emma Wagner

Construction Management

Each CM 115: Fundamentals of Construction Management section contains a quarter long project, the goal of which is to familiarize the students with a modeling software. More so, the goal of the project is to introduce them to a set of construction documents- how to get started, what is included, what they need to pay attention to as a construction manager, and most importantly, to implement what they learn from their written coursework completed during class. This manual was written to help students complete this assignment to the best of their ability, producing a piece of work that shows they …

Comparison Of Carbon Fiber And Fiberglass On Concrete Strength, Justin A. Baker

Construction Management

The purpose of this paper is to compare two common polymers of the construction industry and determine if there are benefits of using them in concrete application to increase overall strength. The goal of the project is to complete a full experiment, utilizing concrete cylinders and beams to test the compressive and tensile properties of fiberglass and carbon fiber. This paper provides data from the experimentation of the compressive and tensile tests of carbon fiber and fiberglass to prove that these polymers are superior and aid in overall concrete strength. The experiment proved that carbon fiber is superior to fiberglass, …

The Sam100: Analyzing Labor Productivity, Andrew John Madsen

Construction Management

The construction industry is one of the slowest when it comes to labor productivity. As a result, construction projects see an increase in duration and labor costs. New technologies are being introduced within the construction industry to increase labor productivity. It is becoming more and more important for the industry to adapt to these technologies. Among them are robots. The SAM100 is a brick-laying robot that can replace most of the masonry crew on a project. Utilizing this technology on masonry-heavy projects could have significant benefits. This paper will analyze the benefits and weaknesses of the SAM100 on the Jay …

Student Response To Traditional Fire Alarm Systems In The Cal Poly Yosemite Dorms, Adam F. Alviso

Construction Management

What would you do if you were a student living on campus and you were burdened by an annoying fire alarm late at night? Though evacuating the building seems like the most logical and safe course of action, sleeping or studying for a big midterm may be a risk you are willing to take. Going back to grade school and up to your freshman year of college, we have been exposed to countless fire drills and false alarms. It is important to know the real facts on how students respond to fire alarms, the reason why they would respond, and …

Introduction To Construction Tools And Equipment Course Concept, Jason Kenneth Wahlund

Construction Management

The current Cal Poly Construction Management curriculum covers nearly all areas of the construction industry with a wide range of materials along with how, where and why they are used. However, no class is specifically geared towards educating students to learn about the tools and equipment that are required to complete most of the jobs in these industries. By offering a technical elective course that allows students to not only visualize but recognize what tools and pieces of equipment are most effective and acceptable for various applications, we can enable students to further understand issues of constructability and safety on …

Cost-Benefit Analysis Of Studying Spanish And Construction In Tandem, Daniel Joseph Eide

Construction Management

Does Spanish bilingualism have measurable fiscal value in the U.S. construction industry? Studying and becoming proficient in Spanish is feasible, affordable, and can be accomplished at Cal Poly in conjunction with a Construction Management major. In a dynamic industry that values versatile employees, where communication is key to success, the capability of speaking Spanish is a substantial value-add in the workforce. Using qualitative and quantitative data analysis, it is concluded that individuals who possess English and Spanish-speaking abilities in the U.S. construction industry can expect a 3 percent wage premium when compared to English-only speakers. This study weighs the costs …

Applications Of Drone Technology With Bim To Increase Productivity, Jesse J. Sanchez

Construction Management

This paper looks directly at BIM and Drone Technology in today's age and how their integrative capabilities with one another can result in a highly productive construction atmosphere. There is an abundance of research for the topic, but no real-life examples. Webcor will serve as this example via case study. The research methodology for the project will come from interviews and a questionnaire featuring a project manager, superintendent, licensed flyer, BIM engineer, and cost estimator. The variety of interviews, will showcase the effects drone technology and BIM have on different sectors of a business. Themes that come out of these …