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    Evaluation of Simulation-Based Optimization in Grafting Labor Allocation

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    Author
    Masoud, Sara
    Son, Young-Jun
    Kubota, Chieri
    Tronstad, Russell
    Affiliation
    Univ Arizona, Dept Syst & Ind Engn
    Univ Arizona, Sch Plant Sci
    Univ Arizona, Dept Agr & Resource Econ
    Issue Date
    2018
    Keywords
    Simulation-based optimization
    Grafting
    Labor allocation
    Discrete event simulation
    
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    Publisher
    AMER SOC AGRICULTURAL & BIOLOGICAL ENGINEERS
    Citation
    Applied Engineering in Agriculture. 34(3): 479-489. (doi: 10.13031/aea.12487) @2018
    Journal
    APPLIED ENGINEERING IN AGRICULTURE
    Rights
    © 2018 American Society of Agricultural and Biological Engineers.
    Collection Information
    This item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.
    Abstract
    Vegetable grafting is a labor-intensive operation with many management decisions. Labor management and resource planning are critical allocations in grafting nurseries, yet optimization is challenging due to the dynamic nature of workers' performance in vegetable seedling propagation. To this end, we developed a simulation-based optimization framework for labor management to optimize labor allocation. This approach was evaluated by comparing its result with those suggested by selected domain experts (a plant scientist and a nursery manager). Furthermore, the simulation models were validated with a dataset from a developing tomato grafting company. Simulation-based optimization is demonstrated as an effective approach to find the optimal/near optimal labor allocation for horticultural nurseries, where discrete event simulation is used to represent the dynamics of the grafting work environment and meta-heuristics are used to devise optimal/near optimal resource allocation strategies. Results reveal that a potential annual savings between $2,510 (0.6%) and $97,388 (20%) can be achieved for a grafting facility of 6 million plants per year.
    ISSN
    1943-7838
    DOI
    10.13031/aea.12487
    Version
    Final published version
    Sponsors
    U.S. Department of Agriculture (USDA) - National institute of food and agriculture [2016-51181-25404]
    Additional Links
    http://elibrary.asabe.org/abstract.asp?AID=48968&t=3&dabs=Y&redir=&redirType=
    ae974a485f413a2113503eed53cd6c53
    10.13031/aea.12487
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