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- All Subjects: Supply Chain
Description
My project focuses on the problems created by the COVID-19 pandemic that impacted the food supply chain in the United States and how they contributed to food insecurity. I identified the three key problems, the shift in demand from the commercial to the retail market, the discarding of raw food and produce, and consumer panic buying. I used the analysis of these problems to then formulate a set of solutions that would work to solve these problems.
ContributorsLentz, Kevin Thomas (Author) / Byrne, Jared (Thesis director) / Fowler, John (Committee member) / Department of Supply Chain Management (Contributor) / Barrett, The Honors College (Contributor)
Created2021-05
Description
In today's global market, companies are facing unprecedented levels of uncertainties in supply, demand and in the economic environment. A critical issue for companies to survive increasing competition is to monitor the changing business environment and manage disturbances and changes in real time. In this dissertation, an integrated framework is proposed using simulation and online calibration methods to enable the adaptive management of large-scale complex supply chain systems. The design, implementation and verification of the integrated approach are studied in this dissertation. The research contributions are two-fold. First, this work enriches symbiotic simulation methodology by proposing a framework of simulation and advanced data fusion methods to improve simulation accuracy. Data fusion techniques optimally calibrate the simulation state/parameters by considering errors in both the simulation models and in measurements of the real-world system. Data fusion methods - Kalman Filtering, Extended Kalman Filtering, and Ensemble Kalman Filtering - are examined and discussed under varied conditions of system chaotic levels, data quality and data availability. Second, the proposed framework is developed, validated and demonstrated in `proof-of-concept' case studies on representative supply chain problems. In the case study of a simplified supply chain system, Kalman Filtering is applied to fuse simulation data and emulation data to effectively improve the accuracy of the detection of abnormalities. In the case study of the `beer game' supply chain model, the system's chaotic level is identified as a key factor to influence simulation performance and the choice of data fusion method. Ensemble Kalman Filtering is found more robust than Extended Kalman Filtering in a highly chaotic system. With appropriate tuning, the improvement of simulation accuracy is up to 80% in a chaotic system, and 60% in a stable system. In the last study, the integrated framework is applied to adaptive inventory control of a multi-echelon supply chain with non-stationary demand. It is worth pointing out that the framework proposed in this dissertation is not only useful in supply chain management, but also suitable to model other complex dynamic systems, such as healthcare delivery systems and energy consumption networks.
ContributorsWang, Shanshan (Author) / Wu, Teresa (Thesis advisor) / Fowler, John (Thesis advisor) / Pfund, Michele (Committee member) / Li, Jing (Committee member) / Pavlicek, William (Committee member) / Arizona State University (Publisher)
Created2010
Description
“What the Health is This” is a creative project that aims to provide health education, improve health literacy, encourage young adults to do their own reputable health research, and empower them to make informed health decisions through that research. Centered on topics of interest for young adults, the podcast covers four main concepts: wellness, self-care, health care, and public health. Each episode is approximately 20 minutes.
ContributorsLim, Lance Israel (Author) / Hasse, Kimberly (Co-author) / Chen, Angela (Thesis director) / Hess, Aaron (Committee member) / Barrett, The Honors College (Contributor) / Edson College of Nursing and Health Innovation (Contributor) / Watts College of Public Service & Community Solut (Contributor)
Created2022-05
Description
“What the Health is This” is a creative project that aims to provide health education, improve health literacy, encourage young adults to do their own reputable health research, and empower them to make informed health decisions through that research. Centered on topics of interest for young adults, the podcast covers four main concepts: wellness, self-care, health care, and public health. Each episode is approximately 20 minutes.
ContributorsHasse, Kimberly (Author) / Lim, Lance (Co-author) / Chen, Angela (Thesis director) / Hess, Aaron (Committee member) / Barrett, The Honors College (Contributor) / Edson College of Nursing and Health Innovation (Contributor) / Watts College of Public Service & Community Solut (Contributor)
Created2022-05
DescriptionThe purpose of "Stephanie's Supply Chain Sit-Downs" is to interview different Supply Chain professionals in different industries to hear their thoughts on the industry, supply chain, and the future of business as well. Stephanie interviewed 4 supply chain professionals from various industries ranging from electronics to aviation.
ContributorsFelberbaum, Stephanie (Author) / Fowler, John (Thesis director) / Carter, Craig (Committee member) / Barrett, The Honors College (Contributor) / Dean, W.P. Carey School of Business (Contributor) / Department of Information Systems (Contributor) / Department of Supply Chain Management (Contributor) / College of Integrative Sciences and Arts (Contributor)
Created2024-05