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Articles 7861 - 7890 of 13842
Full-Text Articles in Engineering
Design Of A Decision-Aiding Model Between Subtractive Manufacturing And 3d-Printing, Tuan Minh Ryan Pham, Colton Harrison
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
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
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
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
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 …
In Situ Characterization Of Voids During Liquid Composite Molding, Brock Don Zobell
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 …
Measuring The Robustness Of Forensic Tools' Ability To Detect Data Hiding Techniques, Samuel Isaiah Moses
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 …
Comparative Analysis Of Big Data Analytics Software In Assessing Sample Data, Soly Mathew Biju, Alex Mathew
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 …
Design For Waste Reduction And Efficiency Improvement For The Construction Usage Of The Tower Crane, George Merida, Roman Richard
Design For Waste Reduction And Efficiency Improvement For The Construction Usage Of The Tower Crane, George Merida, Roman Richard
Industrial and Manufacturing Engineering
Webcor Concrete Group’s on-site tower crane is currently experiencing unknown forms of inefficiency. The project team used the DMAIC methodology to implement Define, Measure, Analyze, Improve, and Control in order to guide and structure the project. After the project team formulated a problem statement, observations were collected of tower crane deliveries resulting in 470 individual data points. The data was then analyzed using basic statistics, histograms, and lean manufacturing tools in order to identify wastes and inefficiencies. Once the wastes and inefficiencies were identified, root cause analysis was performed. The identified root causes were then used as the basis for …
Designing An Information System To Efficiently Coordinate Film Screenings, Galen Dougherty
Designing An Information System To Efficiently Coordinate Film Screenings, Galen Dougherty
Industrial and Manufacturing Engineering
This paper explains the engineering concepts design efforts used to build an information system to efficiently coordinate film screenings. The market served is an emerging group of film makers and production companies that have limited resources. The application aims to save both time and money in coordination efforts for screening films in the local community. The project case examined is a small production start-up from Cal Poly San Luis Obispo named Yellow Glass Media. The design described in the paper specifically targets their needs which are assumed to be representative of the needs of the larger emerging market. The design …
Using Computer Vision To Build A Predictive Model Of Fruit Shelf-Life, Nandan G. Thor
Using Computer Vision To Build A Predictive Model Of Fruit Shelf-Life, Nandan G. Thor
Master's Theses
Computer vision is becoming a ubiquitous technology in many industries on account of its speed, accuracy, and long-term cost efficacy. The ability of a computer vision system to quickly and efficiently make quality decisions has made computer vision a popular technology on inspection lines. However, few companies in the agriculture industry use computer vision because of the non-uniformity of sellable produce. The small number of agriculture companies that do utilize computer vision use it to extract features for size sorting or for a binary grading system: if the piece of fruit has a certain color, certain shape, and certain size, …
An Ergonomics Investigation Of The Application Of Virtual Reality On Training For A Precision Task, Delaney M. Bales
An Ergonomics Investigation Of The Application Of Virtual Reality On Training For A Precision Task, Delaney M. Bales
Master's Theses
Virtual reality is rapidly expanding its capabilities and accessibility to consumers. The application of virtual reality in training for precision tasks has been limited to specialized equipment such as a haptic glove or a haptic stylus, but not studied for handheld controllers in consumer-grade systems such as the HTC Vive. A straight-line precision steadiness task was adopted in virtual reality to emulate basic linear movements in industrial operations and disability rehabilitation. This study collected the total time and the error time for the straight-line task in both virtual reality and a physical control experiment for 48 participants. The task was …
Using The Voice Of The Student To Evaluate Learning Management Systems, Elizabeth A. Cudney, Susan L. Murray, Brittany Groner, Katie M. Kaczmarek, Bonnie Wilt, Kamaria Blaney, Julie Phelps
Using The Voice Of The Student To Evaluate Learning Management Systems, Elizabeth A. Cudney, Susan L. Murray, Brittany Groner, Katie M. Kaczmarek, Bonnie Wilt, Kamaria Blaney, Julie Phelps
Engineering Management and Systems Engineering Faculty Research & Creative Works
A learning management system is an educational tool employed in higher education to organize, document, track, report, and deliver courses. Selecting the appropriate learning management system is a critical decision for a university. This study explores the usability of two leading systems, Blackboard and Canvas, from the students’ perspective. The goal is to gather and analyze user preferences in order to select an appropriate learning management system. Data was collected through surveys of student’s experience with the two learning management systems. The survey evaluated the ease of the following tasks: finding course documents, viewing grades, ease of navigation, intuitiveness, and …
The Application Of Artificial Neural Networks For Prioritization Of Independent Variables Of A Discrete Event Simulation Model In A Manufacturing Environment, Rebecca Pires Dos Santos
The Application Of Artificial Neural Networks For Prioritization Of Independent Variables Of A Discrete Event Simulation Model In A Manufacturing Environment, Rebecca Pires Dos Santos
Theses and Dissertations
The high complexity existent in businesses has required managers to rely on accurate and up to date information. Over the years, many tools have been created to give support to decision makers, such as discrete event simulation and artificial neural networks. Both tools have been applied to improve business performance; however, most of the time they are used separately. This research aims to interpret artificial neural network models that are applied to the data generated by a simulation model and determine which inputs have the most impact on the output of a business. This would allow prioritization of the variables …
Airspace Analysis For Greener Operations: Towards More Adoptability And Predictability Of Continuous Descent Approach (Cda), Emad Ali Alharbi
Airspace Analysis For Greener Operations: Towards More Adoptability And Predictability Of Continuous Descent Approach (Cda), Emad Ali Alharbi
Dissertations
Continuous Descent Approach (CDA), also known as Optimized Profile Descent (OPD), is the advanced flight technique for commercial aircraft to descend continuously from cruise altitude to Final Approach Fix (FAF) or touchdown without level-offs and with- or near-idle thrust setting. Descending using CDA, aircraft stays as high as possible for longer time thereby expanding the vertical distance between aircraft's sources of noise and ground, and thus significantly reducing the noise levels for populated areas around airports. Also, descending with idle engines, fuel burn is reduced resulting in reduction of harmful emissions to the environment and fuel consumption to air carriers. …
Lean Innovation - Funding Stem Education, Samarth Gupta, Chad Laux Phd
Lean Innovation - Funding Stem Education, Samarth Gupta, Chad Laux Phd
International Conference on Lean Six Sigma
No abstract provided.
An Institutional Approach To Lean Six Sigma In Higher Education, Timothy Winders, Chad Laux Phd
An Institutional Approach To Lean Six Sigma In Higher Education, Timothy Winders, Chad Laux Phd
International Conference on Lean Six Sigma
No abstract provided.
Evaluation Of Point Of Distribution Exercise, Kristen Dietz, Andrew Barett, Chad Laux Phd, Ryan Tennessen, Randy Black Phd, Pamela Aaltonen Phd, James E. Dietz Phd
Evaluation Of Point Of Distribution Exercise, Kristen Dietz, Andrew Barett, Chad Laux Phd, Ryan Tennessen, Randy Black Phd, Pamela Aaltonen Phd, James E. Dietz Phd
International Conference on Lean Six Sigma
No abstract provided.
Improving Security Efficacy And Patron Wait Times In Bankers Life Fieldhouse At Indiana Pacers Games, Christien Alexander, Shaince Matthews, Ryan Mccavit, Roneisha Watkins, James E. Dietz Phd, Chad Laux Phd
Improving Security Efficacy And Patron Wait Times In Bankers Life Fieldhouse At Indiana Pacers Games, Christien Alexander, Shaince Matthews, Ryan Mccavit, Roneisha Watkins, James E. Dietz Phd, Chad Laux Phd
International Conference on Lean Six Sigma
No abstract provided.
Implementing Lean Six Sigma In Fda Regulated Technology Transfer, Naina Zachariah, Chad Laux Phd
Implementing Lean Six Sigma In Fda Regulated Technology Transfer, Naina Zachariah, Chad Laux Phd
International Conference on Lean Six Sigma
No abstract provided.
Improving Peruvian Manufacture Of Welding Electrodes, Almendra Morales, Alejandro Gallegos, David Hernandez, Maria Ortiz
Improving Peruvian Manufacture Of Welding Electrodes, Almendra Morales, Alejandro Gallegos, David Hernandez, Maria Ortiz
International Conference on Lean Six Sigma
No abstract provided.
A Three-Year Study Of Adult Undergraduate Engineering Students, Maria-Isabel Carnasciali, Shannon Ciston, Tressa Kay Mikel, Aida Marie Morales, Sanya Sehgal, Melissa L. Whitson
A Three-Year Study Of Adult Undergraduate Engineering Students, Maria-Isabel Carnasciali, Shannon Ciston, Tressa Kay Mikel, Aida Marie Morales, Sanya Sehgal, Melissa L. Whitson
Engineering and Applied Science Education Faculty Publications
Adult learners belong to a large group of individuals for whom lifelong learning is both a desire and a necessity and for whom career changes are or will be the norm. This topic is not exclusive to engineering, but impacts many STEM professionals. Adult learners also include those who may have significant family responsibilities, medical issues, work obligations, returning veterans/active service military people, or those who lack financial resources to commit to fulltime studies. While online education opportunities may fill some of the gaps, acquiring an identity as a professional in a field or discipline grows with personal connections. The …
Life Cycle Sustainability Analysis (Lcsa) Of Polymer-Based Piping For Plumbing Applications, Andy J. Rivas Bolivar
Life Cycle Sustainability Analysis (Lcsa) Of Polymer-Based Piping For Plumbing Applications, Andy J. Rivas Bolivar
Senior Honors Projects, 2010-2019
Water conveyance systems play a critical role in modern developed areas. Polymer pipes have been used for about a century, and their convenient physical properties have positioned polymers as the leading material in the piping industry. Having such influence in the market means that changes in current material selection and manufacturing could lead to significant reductions in the footprint associated with their products. Currently, there are no comparative lifecycle assessments that evaluate the different polymer selections commercially available, which makes it hard to determine what products have the least impact on the environment. Understanding how such impacts are relative to …
Brake Specific Fuel Consumption (Bsfc) In Gasoline Powered Cars, Michael Carlson, Dr. Cecilia J. Vogel
Brake Specific Fuel Consumption (Bsfc) In Gasoline Powered Cars, Michael Carlson, Dr. Cecilia J. Vogel
Celebration of Learning
The goal of this experiment was to determine which driving behaviors result in the highest fuel efficiency for a given trip. We collected data for speed (MPH), engine speed (RPM), engine power (Torque/LOD), and fuel consumption (MPG) using the ScanGauge II.
An Exact Analysis For Four-Order Acousto-Optic Bragg Diffraction Which Incorporates Both Incident Light Angle And Sound Frequency Dependencies, Adeyinka Sunday Ademola
An Exact Analysis For Four-Order Acousto-Optic Bragg Diffraction Which Incorporates Both Incident Light Angle And Sound Frequency Dependencies, Adeyinka Sunday Ademola
Electrical Engineering Theses
This thesis extends the prior work which produced an exact solution to the four-order acousto-optic (AO) Bragg cell with assumed fixed center frequency and with exact Bragg angle incident light. The extension predicts the model that incorporates the dependencies of both the input angle of light and the sound frequency. Specifically, a generalized 4th order linear differential equation (DE), is developed from a simultaneous analysis of four coupled AO system of DEs. Through standard methods, the characteristic roots, which requires solving a quartic equation, is produced. Subsequently, a derived system of homogeneous solutions, which absorbs the roots obtained using …
A Constraint Programming Approach For The Team Orienteering Problem With Time Windows, Ridvan Gedik, Emre Kirac, Ashlea Bennet Milburn, Chase Rainwater
A Constraint Programming Approach For The Team Orienteering Problem With Time Windows, Ridvan Gedik, Emre Kirac, Ashlea Bennet Milburn, Chase Rainwater
Mechanical and Industrial Engineering Faculty Publications
The team orienteering problem with time windows (TOPTW) is a NP-hard combinatorial optimization problem. It has many real-world applications, for example, routing technicians and disaster relief routing. In the TOPTW, a set of locations is given. For each, the profit, service time and time window are known. A fleet of homogenous vehicles are available for visiting locations and collecting their associated profits. Each vehicle is constrained by a maximum tour duration. The problem is to plan a set of vehicle routes that begin and end at a depot, visit each location no more than once by incorporating time window constraints. …
Exploring The Association Between Patient Waiting Time, No-Shows And Overbooking Strategy To Improve Efficiency In Health Care, Cam Tu M. Nguyen
Exploring The Association Between Patient Waiting Time, No-Shows And Overbooking Strategy To Improve Efficiency In Health Care, Cam Tu M. Nguyen
Industrial Engineering Undergraduate Honors Theses
Many primary care clinics are using overbooking as a strategy to mitigate the negative impacts on operations and performance caused by patient nonattendance of appointments, also known as “no-shows”. However, overbooking tends to increase patient waiting time and worker overtime. It is also acknowledged that patient waiting time is associated with no-show behavior, yet there is a lack of observational study to quantify the relationship. The overall goal of this research is to explore the relationships between patient waiting time, no-show behavior and overbooking strategy in terms of clinic performance. Arena® simulation software is used to create a discrete-event simulation …
Productivity Improvement And Cost Optimization Of Small And Medium Scale Enterprises, Unmesh Vishwas Tamhankar
Productivity Improvement And Cost Optimization Of Small And Medium Scale Enterprises, Unmesh Vishwas Tamhankar
Industrial, Manufacturing, and Systems Theses - Archive
Productivity improvement and cost optimization have been a topic of discussion for at least a century. The publication of Fredrick Taylor’s book ‘The Principles of Scientific Management’ in 1911 can be considered as the beginning of the Efficiency movement. Surprisingly, the awareness about the principles of Industrial Engineering is relatively low in many family-owned Small and Medium Scale Enterprises (SMEs). According to a World Bank report, formal SMEs make up 45% of total employment and contribute 33% of GDP in emerging markets. In the USA, SMEs make up for more than 95% of all firms and employ 50% of private …
Risk Assessment And Analysis Of Pharmaceutical Industry Due To Recalls, Sowmya Dinamani Rao
Risk Assessment And Analysis Of Pharmaceutical Industry Due To Recalls, Sowmya Dinamani Rao
Industrial, Manufacturing, and Systems Engineering Dissertations - Archive
In the past five years, there have been 5900 recalls of drugs by the U.S. Food and Drug Administration (FDA) which created distraught consumers and shareholders of pharmaceutical companies. In addition, recalls cause disruption in the supply chain mak-ing the pharmaceutical companies vulnerable to various types of risks. These risks include the potential for losing customers and investors as well as the huge financial losses from fines, penalties, lawsuits, revenue loss, market share and increased operations costs. Purpose: The purpose of this research is to study the consequences of product recall on Pharmaceutical Company. Methodology: Event study methodology was used …
Developing Sustainable Rice Production Through Image Classification, Parker R. Fitzgerald
Developing Sustainable Rice Production Through Image Classification, Parker R. Fitzgerald
Industrial Engineering Undergraduate Honors Theses
The agricultural industry’s continued success is critical to our future. However, many agricultural practices—specifically rice farming—are currently based on unsustainable methods. The processes used in rice farming consume water at an unsupportable rate, and, consequently, are serious contributors to rising emission levels. Several alternative growing methods have been introduced, and one of the most promising candidates is Alternative Wetting and Drying (AWD). An obstacle encountered by proponents of these methods comes in implementation. Studies have shown AWD is more successful in fields with higher leveling precision. The research in this study works to create a stepping stone for farmers to …