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Characteristics of AE Signals from Plant according to the Environmental Variation  

Nam, Ki-Woo (Department of Materials Science and Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society for Nondestructive Testing / v.23, no.3, 2003 , pp. 198-204 More about this Journal
Abstract
A basic experiment was performed to control tile plant growth using acoustic emission technique considering the environmental conditions for plant. At a dry soil condition, the signals due to the cavitation from xylem of angiosperm and gymnosperm were mainly detected. The strong signal from xylem and the weak signal from plasmodesmata and casparian strip were detected at the same time after distilled water was provided. Two signals after providing tile acid and distilled water were contrary to each other. The wind, number of leaf, music, temperature and humidity affected the acoustic emission count from plants but the frequency ranges of the detected signals were the same.
Keywords
variation of environment; angiosperm; gymnosperm; acoustic emission; signal characteristics; cavitation;
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