Engineering Commons^™

Design Of A Process To Implement An Annual Community Fundraiser For Sprout Up, Katherine Lynette Phillips, Kimberly Nicole Walter

Industrial and Manufacturing Engineering

Sprout Up—in San Luis Obispo—is currently a non-profit organization that teaches free environmental science education to first and second graders around the San Luis Obispo area. Due to recent circumstances, Sprout Up will soon be losing its non-profit status, and therefore they will be losing their funding as well. Their problem is that they need a stable annual fundraiser that will help the organization continue to provide free services to local elementary schools as a Cal Poly club rather than a non-profit. Multi-criteria analysis techniques were used to determine what would be the best solution to their problem and found …

Reusable Container System Optimization For Smart Cities, Aubrey Gail Sloan, Lukas James Pinkston, Andrew James Seaman

Industrial and Manufacturing Engineering

Federal and local governments are investing in methods to discourage use of disposable containers in order to reduce waste generation and protect the environment. In this project we propose the use of reusable takeout food containers as a replacement for disposable takeout food containers. Reusable takeout container systems may use barcode or RFID (radio frequency identification) technology to track and manage the distribution, collection, cleaning, and end-of-life recycling of reusable takeout food containers. Such systems will require the use of container collection bins. The design and optimization of a network of container collection bins is the topic of this project. …

Design Of A Decision-Aiding Model Between Subtractive Manufacturing And 3d-Printing, Tuan Minh Ryan Pham, Colton Harrison

Industrial and Manufacturing Engineering

3D-printing is becoming more and more widely used in industry. As this happens, manufacturers are becoming unsure of when to use this new technology and when to trudge on with subtractive (conventional) manufacturing processes. Subtractive manufacturing processes are well-established within many manufacturing companies due to its high efficiencies and low costs. However, 3D-printing offers a greater level of customization, can be automated, and can easily have designs transferred via computer files. Each method has its respective advantages, however, each one also has its downfalls. Subtractive manufacturing produces unnecessary waste, is limited from creating certain geometries, and requires a skilled laborer …

Golf Club Prototyping And Design For Spin Rate Tuning, Cole Nygren, Jordan Wright, Jesse Yap

Industrial and Manufacturing Engineering

The aim of this project was to design a golf wedge capable of increasing backspin for the amateur golfer. This was accomplished by embedding a metal lattice structure behind the clubface to allow the face to elastically deform slightly upon impact. This would increase contact time between the club and ball. The mechanism of spin generation was discussed and the relationship between contact time and spin rate was established. The design was enabled by using additive manufacturing, which allowed for the generation of a metal lattice structure. An appropriate control and prototype were designed to minimize run time and material …

Manufacturing Process And Product Design For Mass Production Of Environmentally-Friendly Fishing Lures And Weights, David Ichlokmanian, Justin Jake Bert

Industrial and Manufacturing Engineering

The current industry standard for the manufacture of recreational fishing tackle uses lead-based weights and PVC or silicone-based lures. Both materials have serious negative effects on those who handle these products, waterfowl, fish, and other animals that may consume this discarded tackle. The goal of this project is to find and design an environmentally safe process and product alternative for this industry. To do this, we researched a large amount of viable safe materials for weights and lures and used decision matrices to decide on the best one. We found that brass would be the most suitable alternative and created …

Addressing The Existence Of Overcrowding In The Cal Poly Rec Center Exercise Rooms, Josue Alvarez, Robert Hemphill

Industrial and Manufacturing Engineering

Cal Poly’s Rec Center is a facility that has been extremely popular among students ever since its initial creation many decades ago. Despite its popularity being a positive quality in most ways, it does ultimately yield a certain issue for the users of the facility; the issue of overcrowding. This senior project aimed to analyze the problem of overcrowding at the Rec Center and improve upon its most critical areas of impact. Ultimately, we identified the Rec Center’s exercise rooms as the most impacted area, with the issue of equipment unavailability being the largest factor. Thus, we designed alternative equipment …

Design Of Standard Operating Procedures For Concrete Delivery And Pour Data Collection And Analysis, Andrew Willard, Mitchell Wilhelmsen

Industrial and Manufacturing Engineering

Webcor Concrete Group (WCG) is a self-perform subsidiary of Webcor Builders, a large general contractor in the state of California. Inefficiencies plague the construction industry, resulting in Webcor reaching out to the Cal Poly Industrial and Manufacturing Department and its students for help. The opportunity addressed in this report centers on a lack of concrete pour data collection. This gap results in a struggle to defend against, or pursue, backcharges with their concrete suppliers regarding additional labor costs or wasted material. The project objective is to provide WCG with a baseline data collection system and procedure, leading to increased back-charge …

Carbon Fiber Monocoque Chassis Platform For Formula Sae And Formula Sae Electric Race Cars, Ford Eimon, Michael Gonzalez, Michal Kramarz, Nathan Powell, Kevin Ziemann

Mechanical Engineering

No abstract provided.

Aerodynamic Drag On Intermodal Rail Cars, Philip Donovan Kinghorn

Theses and Dissertations

The freight rail industry is essential to the US infrastructure and there is significant motivation to improve its efficiency. The aerodynamic drag associated with transport of commodities by rail is becoming increasingly important as the cost of diesel fuel increases. For intermodal railcars a significant amount of aerodynamic drag is a result of the large distance between containers that often occurs and the resulting pressure drag resulting from the separated flow that results due to their non-streamlined shape. This thesis reports on research that has been done to characterize the aerodynamic drag on intermodal train builds and allow their builds …

An Analysis Of Enabling Techniques For Highly-Accessible Low-Cost Virtual Reality Hardware In The Collaborative Engineering Design Process, Joshua Q. Coburn

Theses and Dissertations

While there currently exists a great deal of research in the literature demonstrating various engineering applications for virtual reality (VR) and the benefits of these applications, VR adoption has been slow in part because of the high cost and resources required to setup and maintain the hardware for these applications. However, in the last 5 years, a new generation of VR hardware has emerged with cost and resource requirements which are a small fraction of previous hardware. This work begins with a survey of this newly available hardware summarizing recent advances for providing virtual input to all of the five …

How The Choice Of Bed Material Load Equations And Flow Duration Curves Impacts Estimates Of Effective Discharge, Michael James Cope

Theses and Dissertations

The purpose of this study is to analyze how estimates of an important geomorphic parameter, effective discharge, are impacted by the choice of bed material load equations and flow duration curves (FDCs). The Yang (1979), Brownlie (1981), and Pagosa equations developed by Rosgen (2006) were compared for predicting bed material load. To calculate the bed material load using the Pagosa equations, the bedload and suspended load are calculated separately and the results are added together. To compare the effectiveness of the equations, measured bed material load data from the USGS Open-File Report 89-67 were used. Following the calculations, the equation …

In Situ Characterization Of Voids During Liquid Composite Molding, Brock Don Zobell

Theses and Dissertations

Global competition is pushing the composites industry to advance and become more cost effective. Liquid Composite Molding or LCM is a family of processes that has shown significant promise in its potential to reduce process times and cost while maintaining high levels of part quality. However, the majority of research and information on composite processes have been related to prepreg-autoclave processing which is significantly different than LCM. In order for LCM processes to gain large scale implementation, significant research is required in order to model and simulate the unique nature of the resin infusion process. The purpose of this research …

Concise Handbook For Temporary Traffic Control - Construction, Maintenance, And Utility Operations, Indiana Ltap, Ohio Department Of Transportation

Indiana Local Technical Assistance Program (LTAP) Publications

This handbook gives the basic principles and provides examples for the design, application, installation, and maintenance of the various types of traffic control devices used in temporary traffic control or for incident management. Traffic control in roundabouts has been included in this version. The guidelines presented are in accordance with the standards provided within the Indiana Manual for Uniform Traffic Control Devices (IMUTCD). This handbook is based upon one created by the Ohio Department of Transportation, Guidelines for Traffic Control in Work Zones. Indiana LTAP expresses thanks to ODOT for their permission to reprint this material.

Main Campus And Remote Campus Engineering Technology Students: How Are They Different?, Anne M. Lucietto, Sarah E. Leach

School of Engineering Technology Faculty Publications

Engineering Technology students are underrepresented as compared to other Science, Technology, Engineering, and Mathematics (STEM) majors. In particular, they are a very small, often neglected population of which little is known to those outside their field of study. One large Midwestern University is studying their engineering technology student population to further understand how best to serve these students. The intent is to improve student services, learning opportunities, and environments with a goal of improving student skills and knowledge. The ultimate objective is to send them into the workplace more fully prepared for the challenges they will encounter. Due to the …

Engineering Technology Graduate Students: Roles Professional Societies Havein Their Formation, Anne M. Lucietto, Diane L. Peters

School of Engineering Technology Faculty Publications

In recent years, there have been several research projects focused on returning graduate students in engineering, those who have significant industry experience before beginning their graduate studies. These projects have focused on both the masters and doctoral levels and have looked at research, coursework, benefits of attending graduate school, and the cost of going back. One of the existing papers has looked at the ways in which professional organizations look on returning students, and how their membership policies affect these students. The issue of how returning students see themselves within professional societies was not addressed. As of yet, none of …

Engineering Technology Students - How Do They Compare To Other Stem Students?, Anne M. Lucietto

School of Engineering Technology Faculty Publications

For many years, students interested in Science, Technology, Engineering, and Mathematics (STEM) majors were easily identified. However, since the realization that the US has a low number of students enrolled in STEM programs, great effort has been expended to encourage youth to pursue careers in these areas. Because of these broad-based efforts, the demographics of students moving into STEM are different from those in the past. There is a noted lack of diversity in students majoring in engineering technology; this is not as prevalent in other STEM fields.

Engineering technology students belong to a unique group. They are formally trained …

A Survey Of Women In Academia And The Role Of A Multidisciplinary Professional Society, Daniela Faas, Anne M. Lucietto, Gretchen L. Hein, Lucy Lenhardt, Christi Patton Luks, Beth A. Myers

School of Engineering Technology Faculty Publications

The Society of Women Engineers (SWE) is a global professional society of over 30,000 members with a mission to “Stimulate women to achieve full potential in careers as engineers and leaders, expand the image of the engineering profession as a positive force in improving the quality of life, and demonstrate the value of diversity”1. SWE is an organization that is deeply rooted in industry. The founding members were employed by firms that are a result of the industrial revolution, and thus the focus of its membership is on those that work for industry, consultants, and often themselves. This focus has …

Board # 100 : Research Design, Data Collection, And Assessment Methods For An Integrated Stem Education Model (Work In Progress), J. Geoff Knowles, Todd R. Kelley, Euisuk Sung, Jongseong Choi

Technology Leadership and Innovation Faculty Publications

The goal of this research is to assess the effectiveness of an integrated STEM education model. The study is being conducted under a three-year NSF-ITEST funded project (award #1513248), Teachers and Researchers Advancing Integrated Lessons in STEM (TRAILS). This research incorporates engineering design as a STEM subject integrator and scientific inquiry to provide an authentic learning context for promoting 21st century skills and connections in STEM learning. In addition, the study seeks to assess effective strategies to increase STEM self-efficacy within science (biology or physics) and engineering technology education (ETE) teachers, and advance students’ learning of STEM content at schools …

Understanding Young Students' Problem Solving Pathways: Building A Design Process Model Based On Sequential Analysis, Euisuk Sung, Todd R. Kelley

Technology Leadership and Innovation Faculty Publications

Many STEM-related K-12 education standards, such as the Next Generation Science Standards, Standards for Technological Literacy, and Common Core Mathematics Standards, place great emphasis on designing as a way of delivering their core concepts. However, the classroom delivery of core design concepts has been the focus of very few studies. Particularly, most design-based lessons use a design process model, which poses a challenge for many engineering and technology educators. Therefore, the purpose of this study was to examine the actual process of engineering design using the sequential pattern analysis method. The researchers collected ten Concurrent Think-Aloud (CTA) protocols from fourth …

Scitech News Volume 71, No. 2 (2017)

Sci-Tech News

Columns and Reports

• From the Editor 3

Division News

• Science-Technology Division 5
• Chemistry Division 8
• Engineering Division 9
• Aerospace Section of the Engineering Division 12
• Architecture, Building Engineering, Construction and Design Section of the Engineering Division 14

Reviews

• Sci-Tech Book News Reviews 16

Advertisements

• IEEE 4

Preliminary Investigations Into Selective Laser Melting, David Takeo Otsu

Master's Theses

Selective laser melting is a promising metallic additive manufacturing process with many potential applications in a variety of industries. Through a gracious donation made by Lawrence Livermore National Laboratory, California Polytechnic State University received and installed an SLM 125 HL selective laser melting machine in February 2017. As part of the initial setup effort, a preliminary machine verification study was conducted to evaluate the general print quality of the machine with default parameter settings. Coincidentally, the as-printed microstructure of SLM components was evaluated through nil strength fracture surface examination, an alternative to conventional polish-and-etch metallography. A diverse set of components …

Implementing Net Zero Energy Into The Construction Innovations Center, Marlo Arleen Castro

Construction Management

As the environmental status of our planet declines, it is becoming more and more important for the construction industry to adapt. Leadership in Energy and Environmental Design (LEED) is becoming an unspoken requirement for all new and tenant improvement construction, and now, with the goal of Net Zero Energy (NZE) for all new commercial buildings by 2030, NZE is becoming the way of the future. As of late, California Polytechnic State University in San Luis Obispo (Cal Poly) has made grand efforts to retrofit several of the older buildings on its campus in order to achieve LEED certification. One of …

Preconstruction Services For The Modular House, Trevor Daniel Houghton

Construction Management

The "Modular House", originally named for its composition of 8x8x8 foot steel framed modules, has experienced a rich history of tenants, additions, and tourism. This structure was one of the first to be erected in California Polytechnic’s Poly Canyon. After many great years as a residence and iconic structure the house was ultimately abandoned in 2010. Since then, the building and the canyon have seen increased vandalism and weathering backed by minimal maintenance, resulting in unsafe conditions for the general public. Our mission was to allow this structure to be enjoyed by the public while highlighting its initial architectural features. …

Camp Ocean Pines Aviary Extension, Matthew R. Stephens

Construction Management

This paper describes the construction process of an additional 192 SF storage area for an existing Nature Center, along with a new 1000 SF deck around the entire structure. The scope of work included the excavation and pouring of concrete piers and stem walls, framing of the subfloor, shear walls, roof, and deck, electrical rough-in and finish, roofing system, windows, doors, insulation, drywall, and decking. All work on this project was managed by the author, and construction was done by the author, subcontractors, local hires, and volunteers. Construction of the project took place between December 2016 and June 2017, and …

Development Of A Performance-Based Procedure To Predict Liquefaction-Induced Free-Field Settlements For The Cone Penetration Test, Mikayla Son Hatch

Theses and Dissertations

Liquefaction-induced settlements can cause a large economic toll on a region, from severe infrastructural damage, after an earthquake occurs. The ability to predict, and design for, these settlements is crucial to prevent extensive damage. However, the inherent uncertainty involved in predicting seismic events and hazards makes calculating accurate settlement estimations difficult. Currently there are several seismic hazard analysis methods, however, the performance-based earthquake engineering (PBEE) method is becoming the most promising. The PBEE framework was presented by the Pacific Earthquake Engineering Research (PEER) Center. The PEER PBEE framework is a more comprehensive seismic analysis than any past seismic hazard analysis …

Measuring The Robustness Of Forensic Tools' Ability To Detect Data Hiding Techniques, Samuel Isaiah Moses

Theses and Dissertations

The goal of this research is to create a methodology that measures the robustness and effectiveness of forensic tools' ability to detect data hiding. First, an extensive search for any existing guidelines testing against data hiding was performed. After finding none, existing guidelines and frameworks in cybersecurity and cyber forensics were reviewed. Next, I created the methodology in this thesis. This methodology includes a set of steps that a user should take to evaluate a forensic tool. The methodology has been designed to be flexible and scalable so as new anti-forensic data hiding methods are discovered and developed, they can …

Shalom Seeking: Foundations Of Flourishing, Kevin Timmer

Faculty Work Comprehensive List

Jesus instructs us to seek first the Kingdom of God. Seeking first the Kingdom of God is no small task. It is a process of striving to show God’s love in every situation by showing love to our neighbors and to the rest of the creation. It is serving in a way that enables them to flourish. Seeking first the Kingdom of God is striving for true progress in all its wholeness; it is seeking shalom [1]. Shalom is an Old Testament word which refers to the restfulness, contentment, beauty, and harmony of a life lived in perfect obedience to …

Cancer Cell Redirection Biomarker Discovery Using A Mutual Information Approach, Kimberly Roche, F. Alex Feltus, Jang Pyo Park, Marie-May Coissieux, Chenyan Chang, Vera B.S. Chan, Mohamed Bentires-Alj, Brian W. Booth

Publications

Introducing tumor-derived cells into normal mammary stem cell niches at a sufficiently high ratio of normal to tumorous cells causes those tumor cells to undergo a change to normal mammary phenotype and yield normal mammary progeny. This phenomenon has been termed cancer cell redirection. We have developed an in vitro model that mimics in vivo redirection of cancer cells by the normal mammary microenvironment. Using the RNA profiling data from this cellular model, we examined high-level characteristics of the normal, redirected, and tumor transcriptomes and found the global expression profiles clearly distinguish the three expression states. To identify potential redirection …

The Magnetic, Electrical And Structural Properties Of Copper-Permalloy Alloys, Makram A. Qader, A. Vishina, Lei Yu, Cougar Garcia, Rakesh K. Singh, Nicholas D. Rizzo, Mengchu Huang, Ralph Chamberlin, Kirill Belashchenko, Mark Van Schilfgaarde, N. Newman

Kirill Belashchenko Publications

Copper-permalloy [Cu_1–x(Ni₈₀Fe₂₀)_x] alloy films were deposited by co-sputtering and their chemical, structural, magnetic, and electrical properties were characterized. These films are found to have favorable weak ferromagnetic properties for low temperature magnetoelectronic applications. Our results show that by varying the composition, the saturation magnetization (M_s) can be tuned from 700 emu/cm³ to 0 and the Curie temperature (T_c), can be adjusted from 900 K to 0 K. The M_s and T_c are found to scale linearly between x = 25% and 100%. Electronic structure calculations …

Comparative Analysis Of Big Data Analytics Software In Assessing Sample Data, Soly Mathew Biju, Alex Mathew

Journal of International Technology and Information Management

Over the last few years, big data has emerged as an important topic of discussion in most firms owing to its ability of creation, storage and processing of content at a reasonable price. Big data consists of advanced tools and techniques to process large volumes of data in organisations. Investment in big data analytics has almost become a necessity in large-sized firms, particularly multinational companies, for its unique benefits, particularly in prediction and identification of various trends. Some of the most popular big data analytics software used today are MapReduce, Hive, Tableau and Hive, while the framework Hadoop enables easy …