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Personal Protective Equipment Usage and Injury Type
Get PDFWorkers in the construction industry have many injuries both minor and life-altering. The industry suffers from injuries of all kinds such as falls, electrocution, and being struck by flying objects. To protect against this, workers wear certain types of personal protective equipment (PPE) on construction sites as a last line of defense. The equipment available such as hard hats, safety glasses, gloves, respirators, and hearing protection either protects against acute injuries (those that occur instantly) or chronic injuries (those that occur over time). This study investigates whether the type of injury that PPE protects against, acute or chronic, affects the likelihood of individuals utilizing that protective equipment, when necessary, on the job site. An anonymous survey collected responses from construction industry workers to determine if a pattern is indeed present. Based on the data received, the types of personal protective equipment that protect against chronic injuries such as respirators and hearing protection are less likely to be worn when required or strongly recommended by the Occupational Safety and Health Administration, when compared to PPE that protects against acute injuries
Digital Waves: Communicating Feminist Movements
Get PDFOnline learning provides opportunities for pedagogical growth and innovation. When tasked with teaching an undergraduate Gender and Communication class during a virtual semester (amid the COVID-19 pandemic), I sought ways to engage students through online technologies rather than working against or despite them. The Digital Waves (DW) assignment, one that asks students to research and then create digital representations of a particular “wave” of feminism, was one of several strategies I adopted; it quickly evolved into a favorite
Examining the Effectiveness of the Mandatory Training on Relationship Violence Administered by California Polytechnic State University, San Luis Obispo
Get PDFThis project intends to examine the effectiveness of California Polytechnic State University’s (“Cal Poly’s”) current student requirements on the subject of intimate partner violence. The existing mandatory training is meant to inform students on the prevalence of intimate partner violence and advise them on prevention and intervention techniques. The research in this project explores a broad contextualization of intimate partner violence from a social and historical perspective, which intends to explore the possibility that students may be more likely to internalize the significance of the information if such context was included in the training model. The research also presents information on the concept of framing and how it is an essential aspect of communicating information effectively. Essentially, this project explores the possibility that students may be completing the sexual violence training as a means to an end, but that reframing the content of the training could bolster student’s dedication to learning the material and therefore better achieve the training’s objectives
Improving the Tensile Mechanical Properties of Direct Energy Deposited (DED) Inconel 718 Aircraft Components Using a Standard Heat Treatment
Get PDFThis project aimed to improve the mechanical properties of as-printed additively manufactured Inconel 718 samples using a heat treatment usually used for cast and wrought Inconel 718. The mechanical properties sought to be optimized were yield strength, ultimate tensile strength, elongation, and reduction in area. The property goals were to match or exceed those of cast and heat treated Inconel 718. Wire-fed electron beam direct energy deposition (DED) was used to manufacture the samples, which were then heat treated using the AMS 5663 standard in an inert atmosphere. The samples were then tested in tension to obtain data on their mechanical properties. An as-printed sample was used as the control for the experiment before testing the heat-treated samples. The microstructures of the samples were then examined to determine the cause of any differences in the mechanical properties of the samples. The heat-treated samples displayed an increase in strength that matched the strength of cast Inconel 718. This increase in strength was caused by grain coarsening, dissolution of the Laves phase at layer interfaces, and precipitation of the δ phase and MC carbides in the gamma matrix (γ). The generalized heat treatment improved the mechanical properties of the DED Inconel 718, but the process could be improved. Future work should focus on tailoring the heat treatment for the specific manufacturing route and application of the material to optimize the mechanical properties even more. For example, high levels of the δ phase in the γ matrix signaled an overaging of the material that could have been prevented with a different heat treatment cycle
“A Symphony Should Contain the World”: Extramusical Associations in Mahler’s Early Symphonies
No full textThe focus of this project is to examine the extra-musical associations within the early symphonies of Austrian conductor and composer Gustav Mahler, and how they shifted through rising conflicts regarding programmatic versus absolutist music. Mahler was a late Romantic composer of orchestral music who incorporated complex and massive themes in his works, including love, the natural world, and the meaning of life and death. My goal is to analyze the extramusical material in each of the early symphonies to examine the common themes and motivic elements implemented, as well as track Mahler’s shift in compositional techniques. There are many traceable similarities throughout the symphonies, including Mahler’s use of thematic connections, Austrian folk music, dance styles, stories, and connections between symphonies
DHF Conference Marketing and Branding
Get PDFThe focus for my GRC 462 Senior project is to dive into my role as Director of Marketing for the annual Women In Business conference. As the Director of Marketing for the event my goal is to develop visual branding and an event identity, develop a digital marketing strategy, create marketing collateral, and present promotional marketing to increase event sign ups. My role also includes managing a marketing creative team as well as marketing strategy team. I will also discuss how the branding and marketing initiatives reflect the Women In Business community values and add to the conference experience
Tank Level Controller PLC Lab
Get PDFThe California Polytechnic State University San Luis Obispo’s Electrical Engineering Department is currently developing lab experiments for the new EE435 (Industrial Power Control and Automation) class. In order to support these efforts, fourth year Cal Poly students are expected to develop laboratory experiments that will be conducted during this new class for the semester system. The lab experiment focused on in this project is called the Tank Level Controller. This experiment will introduce EE 435 students to Schneider Electric Programmable Logic Controller (PLC) hardware and software, which is prominent in the automation industry.This experiment will require students to develop a simulation that tracks the actual water level of an industrial tank and the tank’s water intake. The system will utilize 2 valves (an inlet valve and an outlet valve), and will need to recognize the flow rates of each valve, implement the flow rate on the inlet rate using VFD speed control, and adjust the water level via a PID controller. Students will be using the Modicon M580 controller hardware in the lab and simulating elements that cannot be brought into the lab like industrial water tanks and pumps. The goal of this project is to create a well tested and validated lab manual for the Tank Level Controller experiment that students can follow. The experiment should accurately replicable and should not take longer than a 3 hour lab period
Tie Installer for Great Heights to Extend Research
Get PDFThis senior project consisted of developing and creating a hand held device that automatically installed zip-ties. Our project began as an entry to the NASA Micro-G NExT competition but was redirected towards the new goal of creating a consumer product.
Although installing zip-ties seems to be quite a simple process, throughout the entirety of our development we quickly determined that our device would have to embrace a higher level complexity to complete the objective of installing a zip-tie. The ultimate drive force of this project was meant to create a solution for the massive cost gap of already existing Zip-tie installers. In hopes of achieving this solution, we also did not want to neglect the quality of the product. We originally struggled with the balance of keeping the cost low, while wanting to still deliver a high quality product. Yet, we believed that both of those areas were met
Mechanics Desktop Lab Equipment
Get PDFThis paper overviews the design, implementation and testing of a senior project designed to fix the issue of there being no lab equipment or space for content pertaining to mechanic of materials topics. This is of concern as Cal Poly is reorganizing content as it switches to the semester system and is in need of labs for this material. The solution found was to create a portable miniature universal test machine that could be carted into non-lab classrooms. The goal was to create a device that was low-cost, modifiable, durable, easy to manufacture and repair as these were the qualities that would allow it to compete with other similar products in the market. The report focuses on the manufacturing and verification of this prototype along with a discussion of what was learned. Recommendations are given to those that aim to follow up this project so that the device can better achieve the goals of the project. A final overview of what was and was not achieved is reflected on at the end along with the usefulness of this project’s outcomes
Parametric Bicycle Yoke
Get PDFThis report outlines the entire design, fabrication, and validation process of a parametric yoke design that addresses the packaging problem of the bottom-bracket chainstay junction in modern bicycle frames. The goal was to create an elegant, space-efficient solution that is accessible to the Cal Poly Bike Builders Club. The report includes documentation of the three-part fixture system, manufacturing process, and testing results for the yoke.
Our yoke design outperforms traditional round-tube weldments in torsional and vertical stiffness. Additionally, all manufacturing fixtures and machining operations function as intended, resulting in a finished yoke that meets all required tolerances in under an hour of machining time. The cost of manufacturing each yoke is under $20, making it affordable for Bike Builders\u27 Club members.
The report provides detailed information on the testing conducted to verify the design prototype, including the methodology and results. Based on the findings, recommendations for design and process improvements are included for future reference. A user manual, project budget, test results, and other relevant project data are provided as appendices.
Moving forward, the project team plans to collaborate closely with the Bike Builders Club to ensure the successful integration and operation of the yokes in club member projects