Digital Commons Network^™

Girls Who Handle It: Transforming The Lives Of College-Aged Women, Jordan Rae Delfs

Journalism

Girls Who Handle It (GWHI) is an organization unique to San Luis Obispo, but hoping to expand in the coming years. The team recruited myself to begin the process of expansion beginning in Santa Barbara. Despite the success in San Luis Obispo, the lack of previous recognition in this new city proved to be a difficulty in executing this event. GWHI aims to create a community empowerment movement by allowing college-aged women to share their vulnerabilities on a public platform creating conversation surrounding difficulty. They also highlight the role social media plays in hiding these trials by often not accurately …

Real-Time Ray Traced Global Illumination Using Fast Sphere Intersection Approximation For Dynamic Objects, Reed Phillip Garmsen

Master's Theses

Realistic lighting models are an important component of modern computer generated, interactive 3D applications. One of the more difficult to emulate aspects of real-world lighting is the concept of indirect lighting, often referred to as global illumination in computer graphics. Balancing speed and accuracy requires carefully considered trade-offs to achieve plausible results and acceptable framerates.

We present a novel technique of supporting global illumination within the constraints of the new DirectX Raytracing (DXR) API used with DirectX 12. By pre-computing spherical textures to approximate the diffuse color of dynamic objects, we build a smaller set of approximate geometry used for …

Quantifying Proliferative And Surface Marker Heterogeneity In Colony‐Founding Connective Tissue Progenitors And Their Progeny Using Time‐Lapse Microscopy, Edward Kwee, Gerald M. Saidel, Kimerly Powell, Christopher M. Heylman, Cynthia A. Boehm, George F. Muschler

Biomedical Engineering

Connective tissue progenitors (CTPs) are defined as the heterogeneous population of tissue‐resident stem and progenitor cells that are capable of proliferating and differentiating into connective tissue phenotypes. The prevalence and variation in clonal progeny of CTPs can be characterized using a colony formation assay. However, colony assays do not directly assess the characteristics of the colony‐founding CTP. We performed large, field‐of‐view, time‐lapse microscopy to manually track colonies back to the founding cells. Image processing and analysis was used to characterize the colonies and their founding cells. We found that the traditional colony‐forming unit (CFU) assay underestimates the number of founding …

General: Irrigation Bill Of Consumer Rights, Charles M. Burt

BioResource and Agricultural Engineering

Cal Poly ITRC, together with various irrigation industry leaders and the Irrigation Dealers Association of California, plus with assistance from the California Energy Commission and Pacific Gas & Electric Co., developed the Irrigation Consumer Bill of Rights (ICBR) in 1994.

A Higher-Order Method Implemented In An Unstructured Panel Code To Model Linearized Supersonic Flows, Jake Daniel Davis

Master's Theses

Since their conception in the 1960s, panel codes have remained a critical tool in the design and development of air vehicles. With continued advancement in computational technologies, today's codes are able to solve flow fields around arbitrary bodies more quickly and with higher fidelity than those that preceded them. Panel codes prove most useful during the conceptual design phase of an air vehicle, allowing engineers to iterate designs, and generate full solutions of the flow field around a vehicle in a matter of seconds to minutes instead of hours to days using traditional CFD methods. There have been relatively few …

Effectiveness Of Windrow Composting Methodology In Killing A Thermo-Tolerant Species Of Salmonella During Mortality Composting, Spencer Gabriel Myers

Master's Theses

In a large agricultural operation, such as the one at Cal Poly San Luis Obispo, disposal of deceased animals is an immense issue. The cost of transporting and rendering every dead animal is inhibitory to the general function of the agricultural operations and their thin budget. Therefore, we propose that composting mortalities could be an economical alternative. Composting is a recognized method for taking animal waste products along with carbon waste and turning it into a pathogen-free, nutrient-rich topsoil. Carcass composting is in fact performed in other countries and states to varying degrees of success. However, the California EPA limits …

Combining Parts Of Speech, Term Proximity, And Query Expansion For Document Retrieval, Lubomir Stanchev, Eric Labouve

Computer Science and Software Engineering

Document retrieval systems recover documents from a database and order them according to their perceived relevance to a user's search query. This is a difficult task for machines to accomplish because there exists a semantic gap between the meaning of the terms in a user's literal query and a user's true intentions. The main goal of this study is to modify the Okapi BM25 document retrieval system to improve search results for textual queries and unstructured, textual corpora. This research hypothesizes that Okapi BM25 is not taking full advantage of the structure of text inside documents. This structure holds valuable …

As-867-19 Resolution On University Faculty Personnel Policies Chapter 4: Responsibilities In Faculty Evaluation, Academic Senate Faculty Affairs Committee

Academic Senate Resolutions

AS-859-18 resolved that "The Academic Senate Faculty Affairs Committee construct UFPP by proposing university-level faculty personnel policies to the Senate in the form of chapters or portions of chapters of UFPP according to the procedures approved in AS-829-17"; and AS-859-18 resolved that "By the end of Spring 2020 Colleges and other faculty units reorganize their faculty personnel policy documents to conform their documents to the chapter structure of UFPP"; therefore be it the policy document contained at the end of the attached report "Proposed Chapter of University Faculty Personnel Policies Document: CHAPTER 4: RESPONSIBILITIES IN FACULTY EVALUATION" be established as, …

As-864-19 Resolution On Campus Climate University Ombuds And Training, Paul Choboter, Dianne Deturris, Ashley Eberle, Harvey Greenwald, Camille O'Bryant

Academic Senate Resolutions

A majority of these CSU Ombuds Offices serve students, faculty and staff, and 5 of the 14 also serve MPP; therefore, be it that the Academic Senate recommends that the responsibilities of the Ombuds Office be expanded to include all University constituents; and be it further that the Academic Senate recommends that this expansion of the responsibilities of the Ombuds Office be done in such a way that the services provided for students not be adversely affected; and be it further that the Academic Senate recommends that all Cal Poly employees undergo periodic sexual harassment anti-harassment, discrimination, retaliation training; and …

Academic Senate - Agenda, 1/22/2019, Academic Senate

Academic Senate Agendas

No abstract provided.

Heat Inactivation Of Embedded Bacterial Spores, Berenice Badillo, Wayne Shubert

STAR Program Research Presentations

Bacterial spores embedded in a polymer matrix may be up to 10 times more resilient than spores found on the surface of a material. The resiliency of these spores could result in lower than expected microbial reduction using current standards. The goals of planetary protection are to measure, control, and reduce spacecraft microbial contamination in the attempt to minimize the chances of contaminating other worlds with Earth lifeforms or vice versa. The primary method used to microbially reduce spacecraft materials is heat microbial reduction, or HMR. In order to determine the minimum effective times and temperatures to inactivate particularly resistant …

Testing And Comparing Precipitation Algorithms, David Jimenez, Scott Landolt, Kent Goodrich

STAR Program Research Presentations

An algorithm (Alg. 2) was created to calculate precipitation rates and to predict weather events using raw data from a weather event simulator for the duration of two months. The Alg. 2’s results from the simulation were compared to the results of the algorithm that currently produces the data for the Marshall Field Site Webplots (Alg. 1) using a Pierce Skill Score(PSS) as a performance comparison. The two algorithms were also compared using the precipitation accumulation data, acquired from the Tall Double Fence Intercomparison Reference(DFIR) shielded GEONOR gauge in the Marshall field site, 1 April – 30 April 2017. The …

Comparing Orientation Behavior And Prey Preference Of Leptasterias Spp. Between Microhabitats, Jenna C. Sanders, Margaret W. Johnson, C Sarah Cohen

STAR Program Research Presentations

Leptasterias spp. is a species complex of small, six rayed, predatory sea stars that inhabit rocky intertidal communities along the Pacific coast of North America. A developmental mode of brooding their young, rather than broadcasting for planktonic development, limits dispersal away from the natal area, and may also result in fine scale local adaptation of populations. Local adaptation may lead to morphological and behavioral differences among populations, specifically towards the most available prey. Within the rocky intertidalthere are zones of high and low wave impact which create microhabitats with their own selective forces. In areas of high wave impact, stars …

Me 350 Heat Transfer Laboratory, 5th Edition

Mechanical Engineering Lab Manuals

Welcome to the documentation used to describe and conduct eight heat transfer experiments that are located in the Thermal Laboratory in Building 13, Room 203, at Cal Poly State University. All of the experiments are designed to illustrate many of the concepts that are presented in undergraduate thermodynamics and heat transfer classes. The first objective of each lab is to give students hands-on experience with thermal science experiments. This includes working with standard facilities and instrumentation commonly found in thermal science laboratories. The second objective of each lab is to learn how to use experimentally collected data to either validate …

Scada Preventative Maintenance: Reducing The Potential Of Unexpected Failures, Kyle Feist, Zachary Markow, Charles M. Burt

BioResource and Agricultural Engineering

Irrigation district infrastructure utilizing Supervisory Control and Data Acquisition (SCADA) systems can perform a critical service to irrigators, but also present the risk of damage to nearby property and humans in certain failure scenarios. It is therefore prudent to minimize the scope, frequency, and duration of SCADA component failure. However, it is typical for irrigation districts to focus on corrective (post-failure) SCADA maintenance activities, instead of investing in preventive maintenance.

Preventive SCADA maintenance requires budget and labor investment. However, it is anticipated that it is possible to balance the effectiveness and expenses of a preventative maintenance program with some strategic …

2018/2019 Robert E. Kennedy Library Annual Report, Robert E. Kennedy Library

Library Publications and Administrative Reports

We have named our annual report Inside 35, and we are introducing a new format that aims to illustrate the impact of our programs on the Cal Poly community and how a library experience can transform lives and define future careers. The library, through all it has to offer, inspires and celebrates every student’s experience of learning, discovery and personal growth.

Dataset For Pilot Randomized Trial To Reduce Urinary Bisphenols In Women With Obesity, Todd Hagobian, Zoe Delli-Bovi, Adrian Mercado, Alyssa Bird, Megan Guy, Suzanne Phelan

Kinesiology and Public Health

Background: Bisphenol exposure is widespread and correlated with diabetes and cardiovascular disease. Previous intervention studies have effectively lowered bisphenol exposure among women of normal-weight. The purpose of this pilot study was to test the hypothesis that a 3-week bisphenol intervention would decrease urinary bisphenol A (BPA) bisphenol S (BPS), and bisphenol F (BPF) in women with obesity.

Methods: Thirty women with obesity (31.1 ± 5.6 kg/m², 21.1 ± 3.1 yrs) were randomly assigned to an intervention or control. The intervention included weekly face-to-face meetings to reduce bisphenol exposures from food, cosmetics, and packaged products. Fasting urinary …

Enhancing Group Social Perceptiveness Through A Swarm-Based Decision-Making Platform, David A. Askay, Lynn E. Metcalf, Louis Rosenberg, Gregg Willcox

Industrial Technology and Packaging

Swarm Intelligence is natural phenomenon that enables social animals to make group decisions in real-time systems. This process has been deeply studied in fish schools, bird flocks, and bee swarms, where collective intelligence has been observed to emerge. The present paper describes swarm.ai—a collaborative technology that enables swarms of humans to collectively converge upon a decision as a real-time system. Then we present the results of a study investigating if groups working as “human swarms” can amplify their social perceptiveness, a key predictor of collective intelligence. Results showed that groups reduced their social perceptiveness errors by more than half when …

Asphalt And Adhesive Flow And Level Control, Kajan V. Moorthy

Electrical Engineering

This project entails the design of a flow control system to manage flow rates of asphalt to maintain constant thickness on the fiberglass sheet. By using the proposed system, the amount of scrap created by extremely thick or thin deposits on the mat would be reduced. The design of the proposed system aims to produce a flowrate of 10 gpm while it is also capable of self-correcting and shutting down when unsafe conditions occur. Selection of various components of the control system took place which included the Allen Bradley PLC and Flex I/O, power supply, radars for level sensor, and …

Surf Leg, Samantha Campbell, Oyundari Altansukh, Caroline Swanson, Kurtis Barth

Mechanical Engineering

The Surf Leg Prosthetic project team in conjunction with QL+ and Operation Surf designed a transtibial prosthetic to be used for surfing. The senior project team focused on the missions of QL+ and Operation Surf as they went through the design process during the 2018-2019 academic year. The problem solved was that a standard prosthetic for a transtibial amputee does not provide the flexibility in enough degrees of freedom for a user to squat and balance on a surfboard. The goal of this project was to create a device specifically designed to improve the user’s balance and control while surfing. …

Validation Of The Nonhydrostatic General Curvilinear Coastal Ocean Mode (Gccom) For Stratified Flows, Mariangel Garcia, Paul Choboter, Ryan K. Walter, Jose E. Castillo

Physics

While global-and basin-scale processes can be captured quite well with computationally-inexpensive hydrostatic models, smaller-scale features such as shoaling nonlinear internal waves and bores, coastal fronts, and other convective processes require the use of a nonhydrostatic model to accurately capture dynamics. Here the nonhydrostatic capabilities of the General Curvilinear Coastal Ocean Model (GCCOM) in a stratified environment are introduced. GCCOM is a three-dimensional, nonhydrostatic Large Eddy Simulation (LES), rigid lid model that has the ability to run in a fully three-dimensional general curvilinear coordinate system. This model was previously validated for unstratified flows with curvilinear coordinates. Here, recent advances of the …

Implementation Of Blockchain Technology In The Construction Industry, Steven Graham

Construction Management

In general, the construction industry has been pretty resistant to change. While most industries have gained in productivity over the years through implementation of new technologies and other factors, construction industry productivity has been on a steady decline since the 1960s. Even though there are a multitude of reasons for this, including more complex building types and a decline in the workforce, the major problem holding construction back are project management issues and alienation of project stakeholders in the construction process. Some improvements have been made to help with collaboration between parties, like BIM (building information modeling) and project management …

Detrital Zircon Geochronology And Evolution Of The Nacimiento Block Late Mesozoic Forearc Basin, Central California Coast, Scott Johnston, Andrew R.C. Kylander-Clark, Alan D. Chapman

Physics

Forearc basins are first-order products of convergent-margin tectonics, and their sedimentary deposits offer unique perspectives on coeval evolution of adjacent arcs and subduction complexes. New detrital zircon U-Pb geochronologic data from 23 sandstones and 11 individual conglomerate clasts sampled from forearc basin strata of the Nacimiento block, an enigmatic stretch of the Cordilleran forearc exposed along the central California coast, place constraints on models for forearc deformation during evolution of the archetypical Cordilleran Mesozoic margin. Deposition and provenance of the Nacimiento forearc developed in three stages: (1) Late Jurassic– Valanginian deposition of lower Nacimiento forearc strata with zircon derived from …

Academic Senate - Agenda, 12/04/2018, Academic Senate

Academic Senate Agendas

No abstract provided.

Creating An Efficient Business Plan For Longview Club Lambs, Karlee J. Dornbush

Agricultural Education and Communication

Longview Club Lambs is a small startup business located in Lincoln, California. Longview Club Lambs has the goal to maintain a high of level efficiency and productivity to compete with other club lamb businesses within the next three years (Longview Club Lambs, 2018). In order to do this, Longview Club Lambs will need to evaluate its current practices and determine the necessary adjustments that should be made to their business plan.

To create this new business model, the business will need to re-evaluate all its management practices and make the needed changes to adjust to a larger scale operation. Implementing …

Sensor Fusion Algorithm For Airborne Autonomous Vehicle Collision Avoidance Applications, Julien Albert Doe

Master's Theses

A critical ability of any aircraft is to be able to detect potential collisions with other airborne objects, and maneuver to avoid these collisions. This can be done by utilizing sensors on the aircraft to monitor the sky for collision threats. However, several problems face a system which aims to use multiple sensors for target tracking. The data collected from sensors needs to be clustered, fused, and otherwise processed such that the flight control system can make accurate decisions based on it. Raw sensor data, while filled with useful information, is tainted with inaccuracies due to limitations and imperfections of …

A Survey Of Virtual Network Architectures, Lenoy Avidan

Computer Science and Software Engineering

With the storage needs of the world increasing, especially with the growth of cloud computing, data centers are being utilized more than ever. The increasing need of storage has led to more use of virtualization to help intra and inter data center communications. The virtualization of physical networks is used to help achieve this goal, but with the creation of Virtual Networks, systems must be designed to create, manage, and secure them. A Virtual Network Architecture is the system design for creating and maintaining virtual network components and the resulting networks they create. Different companies design different Virtual Network Architectures, …

Review Of Traveling Prehistoric Seas: Critical Thinking On Ancient Transoceanic Voyages, Terry L. Jones

Social Sciences

No abstract provided.

Blokus Game Solver, Chin Chao

Computer Engineering

Blokus (officially pronounced as “Block us”) is an abstract strategy board game with transparent Tetris-shaped, color pieces that players are trying to place onto the board. However, the players can only place a piece that touches at least one corner of their own pieces on the board. The ultimate goal of the game is to place as many pieces onto the board as a player can while blocking off the opponent’s ability to place more pieces onto the board. Each player has pieces with different shapes and sizes that can be placed onto the board, where each block within a …

Gaf: Mechanical Paint Line Test Stand, Sidney Wong, Taylor Best, Aaron Fisher

Mechanical Engineering

The roofing manufacturer GAF located in Shafter, CA is in pursuit of a mechanism with the ability to improve the quality of paint lining applied on a dynamic roll of roofing shingles. The mechanism must consist of an alignment system along which a paint line applicator can be adjusted in the vertical direction and operate at a certain range of speeds. Other requirements for the mechanism demand that it is feasibly portable, reasonably durable, capable of accurate alignment, mountable to the ground, and within a budget of $15,000. With the customer's design requirements established and understood, a one-year project has …