A preliminary study on ultrasonic treatment effect on transverse wood permeability
Ultrasonic pre-treatment of small and pressure saturated Douglas-fir heartwood specimens at 20 kHz fixed frequency with an acoustic horn resulted in increased specific permeability coefficient in both radial and tangential directions. Statistical analysis revealed that there was a high correlation betwe...
| Main Authors: | , , |
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| 格式: | 文件 |
| 语言: | English |
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Universidad del Bío-Bío
2014-12-01
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| 丛编: | Maderas: Ciencia y Tecnología |
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| 在线阅读: | https://revistas.ubiobio.cl/index.php/MCT/article/view/1376 |
| 总结: | Ultrasonic pre-treatment of small and pressure saturated Douglas-fir heartwood specimens at 20 kHz fixed frequency with an acoustic horn resulted in increased specific permeability coefficient in both radial and tangential directions. Statistical analysis revealed that there was a high correlation between ultrasonic treatment time and specific permeability coefficient. Improvement rate of permeability in both radial and tangential directions was nearly the same regardless of treatment time.
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| ISSN: | 0717-3644 0718-221X |