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Mapping Potential Foodsheds In Iowa: A System Optimization Modeling Approach, Guiping Hu, Randy Boeckenstedt, Lizhi Wang, Susan W. Arendt 2016 Iowa State University

Mapping Potential Foodsheds In Iowa: A System Optimization Modeling Approach, Guiping Hu, Randy Boeckenstedt, Lizhi Wang, Susan W. Arendt

Susan W. Arendt

Linear programming tools are used to gauge regional potential for local diversified agriculture required to meet the dietary needs of the population.


Modeling Disruption In A Fresh Produce Supply Chain, Cameron A. MacKenzie, Aruna Apte 2016 Iowa State University

Modeling Disruption In A Fresh Produce Supply Chain, Cameron A. Mackenzie, Aruna Apte

Cameron A. MacKenzie

Purpose—The purpose of this paper is to quantify elements that make fresh produce supply chains vulnerable to disruptions and to quantify the benefits of different disruption management strategies.

Design/methodology/approach—This paper develops a mathematical model of a disruption in a fresh produce supply chain and analyzes the relationships among variables.

Findings—The model determines the optimal safety stock as a function of the perishability of the produce, the length of time it takes to find the contamination, the level of demand during the disruption, and the amount of produce that can be rerouted. Applying the model to ...


Somatic Stimulation Causes Frontoparietal Cortical Changes In Neonates: A Functional Near-Infrared Spectroscopy Study, Nasser H. Kashou, Irfaan Akram Dar, Kathryn Hasenstab, Ramzi W. Nahhas, Sudarshan R. Jadcherla 2016 Wright State University - Main Campus

Somatic Stimulation Causes Frontoparietal Cortical Changes In Neonates: A Functional Near-Infrared Spectroscopy Study, Nasser H. Kashou, Irfaan Akram Dar, Kathryn Hasenstab, Ramzi W. Nahhas, Sudarshan R. Jadcherla

Biomedical, Industrial & Human Factors Engineering Faculty Publications

Palmar and plantar grasp are the foremost primitive neonatal reflexes and functions. Persistence of these reflexes in infancy is a sign of evolving cerebral palsy. Our aims were to establish measurement feasibility in a clinical setting and to characterize changes in oxyhemoglobin (HbO) and deoxyhemoglobin (HbD) concentration in the bilateral frontoparietal cortex in unsedated neonates at the crib-side using functional near-infrared spectroscopy (fNIRS). We hypothesized that bilateral concentration changes will occur upon somatic central and peripheral somatic stimulation. Thirteen preterm neonates (five males) underwent time 1, and six (two males) returned for time 2 (mean PMA ¼ 41.6 and ...


Comparing Optimum Barrier Variables Of Aluminium And Mpet Foil Based Laminates For Coffee Packaging, Abhishek Dutta, Gautam Dutta 2016 Asian Institute of Technology

Comparing Optimum Barrier Variables Of Aluminium And Mpet Foil Based Laminates For Coffee Packaging, Abhishek Dutta, Gautam Dutta

Journal of Applied Packaging Research

The barrier property variables for Aluminum based laminates, both under flexed and unflexed condition, were compared with that of MPET based laminates in order to understand comparative suitability of the later for coffee packaging. Keeping the expected shelf life condition of 180 days the different barrier property variables of the sample MPET and Aluminum based laminates, at the optimality condition, were found out. At the optimum condition, Oxygen transfer rate (OTR) under flexed condition is marginally better for MPET based laminates. However, Aluminium laminates in flexed condition allowing moisture transfer (WVTR) at the rate 24.32 percent stronger than MPET ...


Erratum To: "Evaluating Green Supplier Development Programs At A Telecommunications Systems Provider" [Int. J. Prod. Econ. 140 (2012) 357#1;367], Mahdi Saeedpoor, Amin Vafadarnikjoo 2016 Allameh Tabatabaie University

Erratum To: "Evaluating Green Supplier Development Programs At A Telecommunications Systems Provider" [Int. J. Prod. Econ. 140 (2012) 357#1;367], Mahdi Saeedpoor, Amin Vafadarnikjoo

Amin Vafadarnikjoo

No abstract provided.


Conditions Under Which Adjustability Lowers The Cost Of A Robust Linear Program, Ali Haddad-Sisakht, Sarah M. Ryan 2016 Iowa State University

Conditions Under Which Adjustability Lowers The Cost Of A Robust Linear Program, Ali Haddad-Sisakht, Sarah M. Ryan

Sarah M. Ryan

The adjustable robust counterpart (ARC) of an uncertain linear program extends the robust counterpart (RC) by allowing some decision variables to adjust to the realizations of some uncertain parameters. The ARC may product a less conservative solution than the RC does but cases are known in which it does not. While the literature documents some examples of cost savings provided by adjustability (particularly affine adjustability), it is not straightforward to determine in advance whether they will materialize. The affine adjustable robust counterpart, while having a tractable structure, still may be much larger than the original problem. We establish conditions under ...


Integration Of Progressive Hedging And Dual Decomposition In Stochastic Integer Programs, Ge Guo, Gabriel Hackebeil, Sarah M. Ryan, Jean-Paul Watson, David L. Woodruff 2016 Iowa State University

Integration Of Progressive Hedging And Dual Decomposition In Stochastic Integer Programs, Ge Guo, Gabriel Hackebeil, Sarah M. Ryan, Jean-Paul Watson, David L. Woodruff

Sarah M. Ryan

We present a method for integrating the Progressive Hedging (PH) algorithm and the Dual Decomposition (DD) algorithm of Carøe and Schultz for stochastic mixed-integer programs. Based on the correspondence between lower bounds obtained with PH and DD, a method to transform weights from PH to Lagrange multipliers in DD is found. Fast progress in early iterations of PH speeds up convergence of DD to an exact solution. We report computational results on server location and unit commitment instances.


Design For Manufacturability: Off-Road Toyota Bumper, Drew Donlon 2016 California Polytechnic State University, San Luis Obispo

Design For Manufacturability: Off-Road Toyota Bumper, Drew Donlon

Industrial and Manufacturing Engineering

The purpose of this project is to design a new off-road bumper that is improved from the stock form of a 1996-2002 Toyota 4Runner and a 1996-2004 Toyota Tacoma. The current state of the component is too weak to endure to off-road endeavors, and a kit bumper market is virtually untapped for these vehicles. The objectives of this project were met by redesigning the stock front bumper, conducting a finite element analysis on the model to test for strength, prototyping the bumper with CNC cut cardboard, and conducting a full cost analysis including the costs for waterjet and laser cutting ...


Full Virtual Reality Vs. Integrated Virtual Reality Training In Welding, Richard T. Stone, Elease McLaurin, Peihan Zhong, Kristopher Patrick Watts 2016 Iowa State University

Full Virtual Reality Vs. Integrated Virtual Reality Training In Welding, Richard T. Stone, Elease Mclaurin, Peihan Zhong, Kristopher Patrick Watts

Richard T. Stone Ph.D.

This study demonstrates that both fully virtual and virtual reality (VR) integrated into real-world training programs are appropriate for use in the domain of welding training, depending on the level of task difficulty. Performance differences were virtually indistinguishable between participants in the fully virtual and the integrated training group at the low and medium weld difficulty levels. At the highest level of difficulty, it became apparent that the VR system was no longer solely sufficient for training. This study also tracked the usage patterns for the visual aids used in the VR simulator. These optional aids were presented to the ...


Conditions Under Which Adjustability Lowers The Cost Of A Robust Linear Program, Ali Haddad-Sisakht, Sarah M. Ryan 2016 Iowa State University

Conditions Under Which Adjustability Lowers The Cost Of A Robust Linear Program, Ali Haddad-Sisakht, Sarah M. Ryan

Industrial and Manufacturing Systems Engineering Technical Reports and White Papers

The adjustable robust counterpart (ARC) of an uncertain linear program extends the robust counterpart (RC) by allowing some decision variables to adjust to the realizations of some uncertain parameters. The ARC may product a less conservative solution than the RC does but cases are known in which it does not. While the literature documents some examples of cost savings provided by adjustability (particularly affine adjustability), it is not straightforward to determine in advance whether they will materialize. The affine adjustable robust counterpart, while having a tractable structure, still may be much larger than the original problem. We establish conditions under ...


Solar Turbines Compressor Blade Installation Tools, Ryan Bruce, Carolyn Honeycutt, Stephen Oltrogge, Emmett Ross 2016 California Polytechnic State University, San Luis Obispo

Solar Turbines Compressor Blade Installation Tools, Ryan Bruce, Carolyn Honeycutt, Stephen Oltrogge, Emmett Ross

Mechanical Engineering

The following report documents a California Polytechnic State University, Mechanical Engineering Senior Project sponsored by the gas turbine manufacturer, Solar Turbines. The senior project team consisted of four senior mechanical engineering students at Cal Poly, all with general concentrations; Ryan Bruce, Carolyn Honeycutt, Steve Oltrogge, and Emmett Ross. Kenneth Thomas sponsored the group and serves as the point of contact between the senior project team and Solar Turbines. He is a member of the Solar Turbines Mechanical Design Engineering Team and a Cal Poly graduate. Christoph Maurer served as the project team’s on-campus advisor.

A gas turbine uses internal ...


Continuum Modeling Of The Densification Of W-Ni-Fe During Selective Laser Sintering, Connor M. West 2016 California Polytechnic State University, San Luis Obispo

Continuum Modeling Of The Densification Of W-Ni-Fe During Selective Laser Sintering, Connor M. West

Master's Theses and Project Reports

The purpose of this thesis is to effectively model the time history of the temperature distribution during the selective laser sintering process and use this information to investigate the resulting relative density. The temperature is a critical parameter of the process because it directly effects the overall quality of the part. First, an efficient, affordable, and reliable simulation was developed within the finite element software, Abaqus. Next, the results from the simulations were compared to the experimental results performed by Wang et al. (2016). The FEA model consisted of a 3 layer simulation. Multiple simulations at various laser recipes were ...


Inventory Tracking Software Improvement Project, Jacky Leung 2016 California Polytechnic State University, San Luis Obispo

Inventory Tracking Software Improvement Project, Jacky Leung

Industrial and Manufacturing Engineering

FanimeCon’s Convention Operations department required standardized processes and controls for their inventory tracking software. On top of the current web application, new controls were put into place for checkout limitations. To allow for a continuous improvement effort, processes became standardized with a new graphical user interface where user input is recorded. These will provide processing times for further study in proposing redesigned layouts and more efficient processes.


E-Learning Design For Microsoft Access & Asp.Net, Jonathan Choi, Christopher Hom 2016 California Polytechnic State University, San Luis Obispo

E-Learning Design For Microsoft Access & Asp.Net, Jonathan Choi, Christopher Hom

Industrial and Manufacturing Engineering

The problem definition is that the current video tutorial series is outdated and lacks interactive features that aid with E-Learning. The goal of the project is to create a platform that incorporates features such as structure, interaction, assessments, and competency tests. The project revolved around integrating four softwares together in order to create an effective E-Learning platform. The four softwares were Adobe Captivate, Camtasia, Microsoft Access and Microsoft Visual Studios. Adobe Captive is used to store the tutorial video and assign quizzes. Camtasia is used to record the tutorial videos. Microsoft Access is used to store all the questions given ...


Building A Startup Wine Brand, Sean Christopher Silvestre 2016 California Polytechnic State University, San Luis Obispo

Building A Startup Wine Brand, Sean Christopher Silvestre

Industrial and Manufacturing Engineering

Lisso Wine is a company that currently purchases wine from a California winemaker and resells it in China. In order to reach more customers and increase sales, Lisso wants to create their own brand of wine while keeping the winemaker as a supplier. However, they do not have a plan for the marketing, production, or distribution of their new product. This project will be treated as a startup venture by Lisso Wine and designed to be operated by a handful of people with limited resources. Sustainable and cost-effective materials were selected for the product and it’s packaging in order ...


Facility Redesign For Increased Throughput And Improved Product Flow Of Shark Rack Products Final Assembly At Paris Precision, Karina Hromyak, Julia Remnant 2016 California Polytechnic State University, San Luis Obispo

Facility Redesign For Increased Throughput And Improved Product Flow Of Shark Rack Products Final Assembly At Paris Precision, Karina Hromyak, Julia Remnant

Industrial and Manufacturing Engineering

Paris Precision is a metal fabrication company that fabricates metal components for various companies, one of which is Shark Rack, which creates high end server racks. Shark Rack has plans for a dramatic increase in demand over the next two years. Paris Precision’s Final Assembly area is currently not conducive to produce such a large increase in demand. A redesign of the Final Assembly facility is needed to handle the increase in production and to improve product flow through the space. The project team’s objectives are to:

● Study current Final Assembly production process

● Analyze the production flow

● Create ...


Mentoring Management Database, Alexandra Cava, Samantha Kin 2016 California Polytechnic State University, San Luis Obispo

Mentoring Management Database, Alexandra Cava, Samantha Kin

Industrial and Manufacturing Engineering

A new mentoring program is set to begin next year pairing children from Kindergarten through 12th grade with college students as their mentors. Keeping track of the mentor information, mentee information, pairings, stipend disbursements, interview question results, events, and final assessments by hand would be extremely difficult, therefore, a database would be a great asset to the program.

Creating a database in Microsoft Access allows a user to have all this information in one convenient location, therefore, ensuring there is a good user interface is a key component to this project. Using Perach’s "Guide to the Perplexed" as the ...


Ymca Operations Manual Development, Devlin Stewart 2016 California Polytechnic State University, San Luis Obispo

Ymca Operations Manual Development, Devlin Stewart

Industrial and Manufacturing Engineering

The San Luis Obispo YMCA sports department was losing money and overworking their employees due to lack of processes and organizational issues. To address this, a plan was made with the sports director to begin organizing the sports department. This would be done by creating an operations manual for them to organize and consolidate all of their relevant information.

The project was scoped to develop a plan for the YMCA to implement an operations manual. By delivering a work breakdown structure, a gantt chart, and a plan for continuous improvement, the YMCA could use these tools to develop their operations ...


Design & Analysis Of A Bicycle Towing Device, Austin Lynch, William Max McEwan, Fredrik Stenson 2016 California Polytechnic State University, San Luis Obispo

Design & Analysis Of A Bicycle Towing Device, Austin Lynch, William Max Mcewan, Fredrik Stenson

Industrial and Manufacturing Engineering

A local businessman had the idea to build a device that allows a bicycle to tow another bicycle. He built a prototype to demonstrate his idea but he wanted help in developing a product that could fit more bikes, did not require a rear rack to operate, and be manufacturable at his facility. He also expressed interest in an economic evaluation of production and marketing of the device. An analysis of customer needs led to adding reduction of weight and ease of attachment to the design requirements.

This report is about improving the original design and presents the process of ...


Gold Contamination In Non-Lead Surface Mount Solder Joints, Richard Alexander Garrison 2016 California Polytechnic State University, San Luis Obispo

Gold Contamination In Non-Lead Surface Mount Solder Joints, Richard Alexander Garrison

Industrial and Manufacturing Engineering

Abstract

Solder joints are critical to the reliability of circuit boards. If gold is introduced to the solder joint, brittle AuSn4 intermetallic compounds develop which affect reliability of that solder joint. To determine the effects of gold when dissolved into a non-lead solder joint, a process was developed in order to apply gold content onto SAC305 solder paste. The gold was transferred as a paste from a micropipette onto each individual solder bump. This process was designed to apply a range of gold content from 1.0 wt. % to 10 wt. % to each individual solder joint. The test board vehicle ...


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