Sponsor
National Science Foundation (NSF-CBET-2139003) for funding this grant opportunity to investigate the nonlinear dynamics of CAM photosynthesis using data sonification.
First Advisor
Samantha Hartzell
Date of Award
Spring 6-14-2024
Document Type
Thesis
Department
Civil and Environmental Engineering
Language
English
Subjects
Photosynthesis -- Mathematical models, Crassulacean acid metabolism, Chaotic behavior in systems, Pattern formation (Physical sciences)
DOI
10.15760/honors.1731
Abstract
Sonification is a powerful tool that is harnessed by modern engineers to represent information through audio, and is beginning to be used to interpret more complex data sets. Sonification can be used to facilitate the listeners' ability to grasp microscopic or complex changes in the state of a system. This study uses the assigning of sound patterns to model outputs that indicate chaotic or non-chaotic systems in Crassulacean acid metabolism photosynthesis. Using sound allows the interpretation of chaotic data without the more time intensive processes typically used, such as of Fast Fourier Transformations. Based on past research, it is known what environmental conditions result in chaos for the photosynthesis model, Photo3. The goal of the agave script is to enable instantaneous understanding of the chaos state of the photosynthetic system. By changing model inputs using a musical instrument digital interface controller, model inputs for light intensity, light period, and temperature, can be manipulated in real time to move between chaotic or non-chaotic regimes. Changes in the audio pattern played from norns illustrates when the model shifts between dynamic system outcomes. The results were successful in distinguishing chaotic regimes, showing all three possibilities that exist in this dynamic system: periodic, chaotic, and a stable fixed point.
Rights
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Persistent Identifier
https://archives.pdx.edu/ds/psu/43979
Recommended Citation
Turley, Duncan, "Differentiating Dynamic System Outcomes in CAM Photosynthesis Through Sonification" (2024). Civil and Environmental Engineering Undergraduate Honors Theses. 17.
https://doi.org/10.15760/honors.1731
Comments
An undergraduate honors thesis submitted in partial fulfillment of the requirements for the degree of Bachelor of Science in Civil and Environmental Engineering with Departmental Honors.