Digital Commons Network^™

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.

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 …

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 …

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 …

Weed, Ca Housing Project, Trenton Jay Pichel

Architectural Engineering

No abstract provided.

Development Of An Insulated Solar Electric Cooker (Isec) With Thermal Storage For Use In Developing World Countries, Amanda Gyokery, Spencer W. Davis, Kyle Henry Smit

Mechanical Engineering

According to the World Health Organization, about half of the world’s population uses biomass stoves to cook their meals. However, biomass fires can be dangerous. Unattended biomass fires and indoor air pollution are responsible for an estimated 600,000 deaths annually and the creation of approximately 4 million instances of chronic disease. They also release CO2 and other pollutants into the air, and require the families to gather enough material to keep it burning (WHO 2017). Although cleaner cooking technology seems like a clear solution, often families are either unwilling to change how they cook food or are unable to afford …

Sex Differences In Collateral Remodeling Following Hindlimb Arterial Occlusion, Laura Burckhardt

Master's Theses

Clinical evidence indicates a higher incidence of peripheral arterial occlusive disease and associated likelihood of critical limb ischemia in women, as well as worse prognosis and decreased survival post myocardial infarction. Therefore, understanding the possible differences in underlying vascular compensation mechanisms is crucial. With arterial occlusions, necrosis and tissue injury can be naturally mitigated by the collateral circulation, improving patient prognosis. Previous sex-comparison studies describing differences in vascular remodeling are inconsistent. Therefore, the aim of this study was to describe the effect of arterial occlusion on collateral remodeling in healthy male and healthy reproductive-stage female mice. At 7 days following …

Lost In Translation: Social Media Outreach, Concerns, And Responses To The Potential Decommissioning Of Diablo Nuclear Power Plant, Madison O'Hare Salvati

Journalism

The following study investigated the process in designing a social media campaign the effectively conveys a large corporation’s, like Pacific Gas & Electric (PG&E), essence online during a significant event that will impact the entire community that corporation serves. The trend in social media campaigns to reach a greater audience during events like the potential decommissioning of Diablo Canyon Nuclear Power Plant (DCPP) is important and becoming a more efficient approach in keeping the public informed. The campaign’s focus was to restore PG&E’s online presence by taking down real-life concerns of those who will be impacted by the decommissioning of …

Strange Women: The Evaluation And Comparison Of Female Characters In Akira Kurosawa's Films, Alice Jiron Jang

History

The successes of Akira Kurosawa’s films have shaped and influenced Western views on Japan after World War II. While the male characters in Kurosawa’s films have been analyzed extensively, there is a focus on the subservience of this female characters. With the growing number of independent working women in a seemingly patriarchal society, it is important to study what has caused these women to break free from their traditional roles as housewife and mother. While some of Kurosawa's female characters are designed to be powerful and independent, others are submissive and obedient. The events that occur in postwar Japan have …

Let's Talk Story: Waikiki And Its Social Displacements In Oral Histories And Print, 1901–1935, Alika Bourgette

Master's Theses

The everyday experiences of Waikiki’s residents of color often escaped official and semi-official records of historical events. When concerning Native Hawaiians and other nonwhite peoples, haole elite journalists and policymakers viewed their land, possessions, and bodies as opportunities for the cultural commodification, sexualization, and reimagination. As part of the redevelopment efforts of the Waikiki shoreline in the early twentieth century, state and commercial actors worked to affect the systematic erasure of Native Hawaiian and resident Asian spaces. This study utilizes extensive collections of oral histories from marginalized Waikiki residents of color to provide counterpoint to notions of indigenous passivity and …

Spatiotemporal Variability In The Macroinvertebrate Community Of A Small Coastal California Stream, Little Creek, Davenport, California, John Patrick Hardy

Master's Theses

Macroinvertebrate community structure was characterized along the channel gradient of a headwater stream in a coast redwood forest on Cal Poly’s Swanton Pacific Ranch in Davenport, California. The significance of physical habitat characteristics in describing macroinvertebrate assemblage structure was assessed in an effort to create a framework to better understand the expected biological response to riparian canopy manipulation. Seven study reaches were established in 2015. These study reaches were evenly spaced throughout the Little Creek watershed, an approximately 4.8 km² drainage characterized by steep inner-gorge areas and dense riparian vegetation. Macroinvertebrate samples were collected seasonally (i.e., spring, summer, and …

Influences Of Anthropogenic Noise On Flight Initiation Distance, Foraging Behavior, And Feeder Community Structure Of Wild Birds, Alissa R. Petrelli

Master's Theses

Throughout the world, birds represent the primary type of wildlife that people experience on a daily basis. However, a growing body of evidence suggests that alterations to the acoustic environment can negatively affect birds as well as humans in a variety of ways, and altered acoustics from noise pollution has the potential to influence human interactions with wild birds. In this thesis, I investigated how anthropogenic noise impacts daily behavior as well as community structure of wild birds. In the first component of this thesis, I assessed the distance at which a bird initiates flight or escape behavior (i.e., flight …

Vibration Analysis Of A Wind Turbine Multi-Stage Planetary Gearbox Incorporating A Flexible Body Component, Tananant Boonya-Ananta

Master's Theses

The following thesis document researches into creating a model to represent the behavior of a wind turbine gearbox. This model is developed based on the overall parameters of a NORDEX N90 2.5MW wind turbine developed by a German company Nordex SE. This research focuses on the combination of a flexible body and a multibody dynamics analysis software. This is done through the usage of MSC ADAMS, a multibody dynamic analysis program, and MSC Patran/Nastran, a finite element analysis software, and its associated solver. The model is created to show the vibration patterns of a healthy gearbox with rigid bodies, with …

Computer-Aided Diagnoses (Cad) System: An Artificial Neural Network Approach To Mri Analysis And Diagnosis Of Alzheimer's Disease (Ad), Berizohar Padilla Cerezo

Master's Theses

Alzheimer’s disease (AD) is a chronic and progressive, irreversible syndrome that deteriorates the cognitive functions. Official death certificates of 2013 reported 84,767 deaths from Alzheimer’s disease, making it the 6th leading cause of death in the United States. The rate of AD is estimated to double by 2050. The neurodegeneration of AD occurs decades before symptoms of dementia are evident. Therefore, having an efficient methodology for the early and proper diagnosis can lead to more effective treatments.

Neuroimaging techniques such as magnetic resonance imaging (MRI) can detect changes in the brain of living subjects. Moreover, medical imaging techniques are the …

Improving Companion Ai Behavior In Mimica, Daniel Toy

Master's Theses

Companion characters are an important aspect of video games and appear in many different genres. Their role is typically to support the player as they progress through the game by helping to complete tasks or assisting in combat. However, oftentimes, these companion characters are limited in their ability to dynamically react to new situations and fail to properly assist the player.

In this paper, we present a solution by improving upon the MimicA framework, which allows companion characters to emulate the human player. The framework takes a learn by observation approach by storing the game state when the player performs …

Value Of Utilizing Tubular Daylighting Devices In Csu, Channel Islands' Gateway Hall, Blake T. Walsh

Construction Management

Daylighting is becoming an increasingly more important aspect of building design as our planet’s natural resources deplete and the cost savings for daylighting systems grow. California State University, Channel Islands (CSUCI) values the use of daylighting and aims to incorporate it into its upcoming project, Gateway Hall. One option of daylighting that the campus is considering for this project is tubular daylighting devices (TDD). This paper will study the use of tubular daylighting devices and the potential cost savings that they could have on Gateway Hall. The company leading the way in TDD technology is Solatube, whose products are among …

Certifications In The Construction Industry: A Look Into Industry Standards, Shawn T. Pacaoan

Construction Management

Becoming certified in various areas of construction is a task that requires completing rigorous courses to become more knowledgeable and give those the tools to succeed in a certain path within construction. Having a multitude of certifications diversifies your portfolio, and strengthens your resume but acquiring multiple certifications can be a very expensive and time-consuming task. Is the time commitment and expenses worth it? By the end of this paper students will finally know the answer to a question they have always been asking, “Do construction certifications actually better your chances to get a job?” Since there are numerous certifications …

Case Study: Mitigating Schedule Impacts From Oshpd Regulations On Medical Equipment, Peter K. Lee

Construction Management

The vast majority of healthcare construction projects in the state of California work with OSHPD—Office of Statewide Health Planning and Development—to meet California’s Hospital Seismic Safety Law. While meeting the state’s Hospital Seismic Safety Law is important and even critical, working with OSHPD’s stringent regulations does imply additional concerns to be addressed by the project team. One concern regards the approval of bigger medical equipment and its impact on the overall construction schedule. This paper examines the factors that contribute to delays in the construction schedule, responsible parties for the delay, and responsibilities of each involved party. Based on an …

Academic Senate - Meeting Minutes, 11/28/2017, Academic Senate

Academic Senate Minutes

No abstract provided.

Academic Senate - Agenda, 11/28/2017, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Agenda, 11/14/2017, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Meeting Minutes, 11/14/2017, Academic Senate

Academic Senate Minutes

No abstract provided.

Executive Committee - Meeting Minutes, 11/7/2017, Academic Senate

Academic Senate Minutes

No abstract provided.

Executive Meeting - Agenda, 11/7/2017, Academic Senate

Academic Senate Agendas

No abstract provided.

Executive Committee - Meeting Minutes, 10/31/2017, Academic Senate

Academic Senate Minutes

No abstract provided.

Executive Committee - Agenda, 10/31/2017, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Agenda, 10/24/2017, Academic Senate

Academic Senate Agendas

No abstract provided.

Academic Senate - Meeting Minutes, 10/24/2017, Academic Senate

Academic Senate Minutes

No abstract provided.

Xenotransplantation, Subsistence Hunting And The Pursuit Of Health: Lessons For Animal Rights-Based Vegan Advocacy, Nathan M. Nobis

Between the Species

I argue that, contrary to what Tom Regan suggests, his rights view implies that subsistence hunting is wrong, that is, killing animals for food is wrong even when they are the only available food source, since doing so violates animal rights. We can see that subsistence hunting is wrong on the rights view by seeing why animal experimentation, specifically xenotransplanation, is wrong on the rights view: if it’s wrong to kill an animal to take organs to save a human life, it’s wrong to kill an animal to eat that animal to save a human life or improve …

Executive Committee - Meeting Minutes, 10/10/2017, Academic Senate

Academic Senate Minutes

No abstract provided.