Investigation Of Thermomechanical Effects Of Lighting Conditions On Canvas Paintings By Laser Shearography, 2012 Selected Works
Investigation Of Thermomechanical Effects Of Lighting Conditions On Canvas Paintings By Laser Shearography, Morteza Khaleghi, Ivo Dobrev, Philip Klausmeyer, Ellery Harrington, Cosme Furlong
Morteza Khaleghi
Quantitative techniques to characterize thermomechanical effects of light on canvas paintings are necessary in order to better understand the deleterious effects that light has on precious art collections in museum exhibitions. In this paper, we present advances in the development of a customized laser shearography system for temporal characterization of in-plane displacements of canvas paintings when subjected to specific lighting conditions. The shearography system is synchronized with a thermal IR camera and concomitant measurements of derivatives of displacements along two orthogonal shearing directions as well as thermal fields are performed. Due to the nature of the measurements, we have developed …
Improving Endmilling Surface Finish By Workpiece Rotation And Adaptive Toolpath Spacing, 2012 University of California - Berkeley
Improving Endmilling Surface Finish By Workpiece Rotation And Adaptive Toolpath Spacing, Athulan Vijayaraghavan, Aaron Hoover, Jeffrey Hartnett, David Dornfeld
Aaron M. Hoover
Free-form surfaces are being used in a growing number of engineering applications, especially in injection molding of consumer products. Decreasing the manufacturing cost and time of these molds will improve the efficiency of manufacturing injection molded consumer products. This paper is motivated by the need for simple strategies to improve the quality of and decrease the time required to machine free-form surfaces. We present two methods to improve the surface finish of parts finished with ball-nose endmilling. In the first method the surface finish is improved by finding an optimal orientation angle for the workpiece relative to the machining axis. …
Trajectory Generation In High-Speed, High-Precision Micromilling Using Subdivision Surfaces, 2012 University of California - Berkeley
Trajectory Generation In High-Speed, High-Precision Micromilling Using Subdivision Surfaces, Athulan Vijayaraghavan, Angela Sodemann, Aaron Hoover, J. Mayor, David Dornfeld
Aaron M. Hoover
Motion control in high-speed micromilling processes requires fast, accurate following of a specified curvilinear path. The accuracy with which the path can be followed is determined by the speed at which individual trajectories can be generated and sent to the control system. The time required to generate the trajectory is dependent on the representations used for the curvilinear trajectory path. In this study, we introduce the use of subdivision curves as a method for generating high-speed micromilling trajectories. Subdivision curves are discretized curves which are specified as a series of recursive refinements of a coarse mesh. By applying these recursive …
A Comparative Study Of Strength And Stiffness Of Thin-Walled Specimens Fabricated By Fdm And 3d Printing Technologies, 2012 Brigham Young University - Provo
A Comparative Study Of Strength And Stiffness Of Thin-Walled Specimens Fabricated By Fdm And 3d Printing Technologies, Miranda Rodrigo
Theses and Dissertations
Rapid Prototyped part failure constitutes a major issue for both RP providers and customers. When parts fail the reputation of the vendor is heavily deteriorated, customer dissatisfaction increase and replacement of the broken parts is often necessary to avoid the loss of future business. Product design teams often run into situations where Rapid Prototyped parts are not able to withstand shipping and handling and delivered broken or while demonstrating and examining the parts. When done in the face of customers this builds a perception of poor quality and lack of aptitude on the design group as well as the RP …
Antibacterial Activity Against Beta- Lactamase Producing Methicillin And Ampicillin-Resistants Staphylococcus Aureus: Fractional Inhibitory Concentration Index (Fici) Determination, 2012 Laboratoire de Physiologie Animale, Electrophysiologie et de Pharmacologie, Faculté des Sciences, Université des Sciences et Techniques de Masuku, Franceville, Gabon
Antibacterial Activity Against Beta- Lactamase Producing Methicillin And Ampicillin-Resistants Staphylococcus Aureus: Fractional Inhibitory Concentration Index (Fici) Determination, Kiessoun K Onate, Jacques François Mavoungou, Alexis Nicaise Lepengué, Raïssa Rr Aworet-Samseny, Adama Hilou, Mamoudou H. Dicko Prof., Bertrand M’Batchi
Pr. Mamoudou H. DICKO, PhD
The present study reports the antibacterial capacity of alkaloid compounds in combination with Methicillin and Ampicillin-resistants bacteria isolated from clinical samples. The resistance of different bacteria strains to the current antibacterial agents, their toxicity and the cost of the treatment have led to the development of natural products against the bacteria resistant infections when applied in combination with conventional antimicrobial drugs. The antibacterial assays in this study were performed by using inhibition zone diameters, MIC, MBC methods, the time-kill assay and the Fractional Inhibitory Concentration Index (FICI) determination. On the whole, fifteen Gram-positive bacterial strains (MRSA/ARSA) were used. Negative control …
Design, Construction, And Evaluation Of An Automated Chicken Coop Door, 2012 California Polytechnic State University, San Luis Obispo
Design, Construction, And Evaluation Of An Automated Chicken Coop Door, Kyle Inks
BioResource and Agricultural Engineering
This senior project takes a look into the design, construction, and evaluation of an automated chicken coop door. The idea and need for such a door came from my mother Jan Inks. The parameters for the project include, low production cost, easy installation on existing coops, sleek design, automatically open at a set time in the morning, and automatically close at a set time in the evening.
Recreational Nordic Sit Ski, 2012 California Polytechnic State University - San Luis Obispo
Recreational Nordic Sit Ski, Mathew Bissonnette, Johnathon Gorski, Kevin Izumiya
Mechanical Engineering
The purpose of this project was to design, build, and test a recreational Nordic sit ski for use by Disabled Sports Eastern Sierra. The goal was to improve adjustability and reduce weight compared to previous sit ski designs. The project was completed by Cal Poly Mechanical Engineering seniors Mathew Bissonnette, Johnathon Gorski, and Kevin Izumiya. Kinesiology seniors Harpreet Saini and Carl Anderson provided discipline support and disability etiquette training.
The project was sponsored by the National Science Foundation Research to Aid Persons with Disabilities (RAPD) grant. The grant was proposed by and awarded to Dr. Brian Self and Dr. James …
The Hovering Ball Exhibit, 2012 California Polytechnic State University - San Luis Obispo
The Hovering Ball Exhibit, Matthew Bauzon, Will Lennox, Michelle Swan
Mechanical Engineering
No abstract provided.
Design Of An Independent Star-Clip Organizer (Iso), 2012 California Polytechnic State University - San Luis Obispo
Design Of An Independent Star-Clip Organizer (Iso), Christopher Gonzales, Greg Lovasik, Daniel Silveira
Mechanical Engineering
Discussed below is a new concept to sort and deliver star clips for flight deck safety net manufacturing. Multiple methods were generated, along with the necessary research, and were narrowed down to a single concept: the tray-loading preprocess design, named ISO (Independent Star-Clip Organizer). The overall design has been finalized and designed. Due to budget constraints, an actual prototype was not built. However, the design of such a prototype is described by this report, backed with calculations and experimental testing.
Human Powered Helicopter: Rotor Structure, 2012 California Polytechnic State University - San Luis Obispo
Human Powered Helicopter: Rotor Structure, Joseph Ram, Juan Carlos Olvera
Mechanical Engineering
The following report encompasses the Human Powered Helicopter Rotor Team’s conceptual models and ideas based on research and modeling analysis. The following gives an overview of material researched, concept generation, analyzation, manufacturing, and testing for a rotor structure to be installed in a Human Powered Helicopter.
Formula Hybrid Drivetrain Design, 2012 California Polytechnic State University - San Luis Obispo
Formula Hybrid Drivetrain Design, Zachary (Zak) Mcfarland, Alex Pruitt, William Domhart
Mechanical Engineering
The Formula Hybrid senior project group was tasked with designing and building a drivetrain system for the Cal Poly Society of Automotive Engineers (SAE) Formula Hybrid (FHSAE) team. FHSAE gave customer requirements for performance and geometry for the drivetrain and the FHSAE rulebook has guidelines regarding safety requirements. The team chose to compete in the electric category of the 2012 FHSAE competition. After getting feedback from previous car performance and researching different powertrain options, the senior project team arrived at three conceptual ideas. Using a quality function deployment method, the senior project team chose the concept where two motors independently …
Advanced Design Optimization For Composite Structure: Stress Reduction, Weight Decrease And Manufacturing Cost Savings, 2012 University of Connecticut
Advanced Design Optimization For Composite Structure: Stress Reduction, Weight Decrease And Manufacturing Cost Savings, Shayan Ahmadian
Master's Theses
An injection moldable chopped fiber composite actuator with detailed drawing and tolerances was designed within one year. A vendor was selected and a quote for injection molding tooling cost for production was obtained and the first prototype was built in addition of six months. The risks are identified and material characterization tests are proposed.
The objective of this project was redesigning an aluminum made actuator with a continuous fiber composite for weight saving purposes. After searching the literature and consulting with experts in the field it was concluded that manufacturing costs associated with continuous fiber composite are 3 times as …
Study Of Grinding Burn Using Design Of Experiments Approach And Advanced Kaizen Methodology, 2012 University of Nebraska – Lincoln
Study Of Grinding Burn Using Design Of Experiments Approach And Advanced Kaizen Methodology, Kiruthika Devi Sundarrajan
Department of Industrial and Management Systems Engineering: Dissertations, Theses, and Student Research
Grinding burn has been one of the re-occurring issues at a leading automotive manufacturer. Historically when grinding burn occurred, trial and error was used to delicately find a set up process settings that provided good-enough-to-get-by results, but not optimal. Some changes include changing the coolant manifold to improve the coolant flow and rate, changing the grinding wheel, changing the type of coolant. The experiments have proved to introduce some improvements, however the occurrence of grinding burns have not been reduced or quantified and the cause of the grinding burn has not been identified or quantified. Grinding is a complex phenomenon …
Integrating Courses Through Project Based Learning, 2012 California Polytechnic State University - San Luis Obispo
Integrating Courses Through Project Based Learning, Lizabeth Schlemer, Sema E. Alptekin, Karen R. Bangs
Industrial and Manufacturing Engineering
Integrating three courses (one sophomore level, two senior level) through Project Based Learning (PBL) within the Industrial Engineering curriculum at the California Polytechnic State University, San Luis Obispo is presented. Three courses (IME 443 Facilities Planning and Design - senior level; IME 420 Simulation - senior level; and IME 223 Process Improvement Fundamentals - sophomore level) were linked by various mechanisms: Common industry projects, common students in two of the three courses; senior students having access to sophomores in their teams to carry out time consuming tasks such as time studies, and sophomores having access to seniors as team members, …
Improving Manufacturing Processes Through Energy Monitoring, 2012 Purdue University
Improving Manufacturing Processes Through Energy Monitoring, Andrew Grzelak
Purdue Polytechnic Masters Theses
Energy efficiency and sustainability are very popular topics in the current field of manufacturing. With the increase in use of automation technology as well as the recent growth in the area of energy management, there is much focus on the overall improvement of manufacturing processes. For this research a project was completed to create a system that could improve both process efficiency as well as decrease energy consumption. By taking a look at the machine level energy consumption of an automated piece of manufacturing equipment, by eliminating waste in process, both energy efficiency and operational efficiency can be improved.
Using …
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, 2012 Northeastern University
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, Joan Fitzgerald, Lisa Granquist, Ishwar Khatiwada, Joe Mclaughlin, Michael Renner, Andrew Sum
Joe McLaughlin
No abstract provided.
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, 2012 Northeastern University
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, Joan Fitzgerald, Lisa Granquist, Ishwar Khatiwada, Joe Mclaughlin, Michael Renner, Andrew Sum
Ishwar Khatiwada
No abstract provided.
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, 2012 Northeastern University
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, Joan Fitzgerald, Lisa Granquist, Ishwar Khatiwada, Joe Mclaughlin, Michael Renner, Andrew Sum
Andrew Sum
No abstract provided.
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, 2012 Northeastern University
Reviving The U.S. Rail And Transit Industry: Investments And Job Creation, Joan Fitzgerald, Lisa Granquist, Ishwar Khatiwada, Joe Mclaughlin, Michael Renner, Andrew Sum
Joan Fitzgerald
No abstract provided.
Acoustic Emission Detection Of Metals And Alloys During Machining Operations, 2012 Purdue University
Acoustic Emission Detection Of Metals And Alloys During Machining Operations, Jameson K. Nelson
Purdue Polytechnic Masters Theses
Nelson, Jameson K. M.S., Purdue University, May 2012. Acoustic Emission Detection of Metals and Alloys During Machining Operations. Major Professor: Rodney G. Handy.
Practical correlation between material deformation attributes and theoretical concepts of machining has proven difficult to attain. The purpose of this study was to further explore trends and relationships using acoustic emission detection of materials undergoing single-point lathe turning machine processes. The majority of machining experiments that incorporate acoustic emissions focuses on tool degradation for the purposes of optimizing consumables required to manufacture mechanical devices. Experiments were implemented varying recording location, mechanical barrier condition, and machine parameters. The …