Observations by LV-SEM of shrinkage and anisotropy of tracheid cells with desorption

Naoto Mikajiri, Junji Matsumura, Motoaki Okuma, Kazuyuki Oda

研究成果: ジャーナルへの寄稿記事

7 引用 (Scopus)

抄録

Transverse Shrinkage and its anisotropy in radiata pine and spruce were investigated by means of a LV-SEM (Low-Vacuum Scanning Electron Microscope), that allows observation of water-containing specimens. The shrinkage of tracheid cells from the saturated to the dry condition was determined by measuring tangential diameter of tracheid and lumen, radial diameter of tracheid and lumen, and thickness of tangential and radial walls. Four types of specimens, namely isolated earlywood, isolated latewood, earlywood including latewood, and latewood including earlywood were used in this study. The results are summarized as follow: The lumina shrank anisotropically by drying. This means that the tracheid cell walls shrank in width the same as in thickness. The shrinkage in width was greater for tangential walls than that for radial walls. The shrinkage in thickness was almost the same for tangential and radial walls in all specimens. Therefore, anisotropy in tracheids occurring during drying was brought about by the difference in shrinkage in width between tangential and radial walls. The shrinkage in the tangential direction of earlywood including latewood was greater than that of isolated earlywood. This suggests that latewood increases the shrinkage of earlywood in the tangential direction. Earlywood did not affect the shrinkage of latewood in any direction. Both isolated earlywood and isolated latewood exhibit anisotropy of transverse shrinkage.

元の言語英語
ページ(範囲)289-294
ページ数6
ジャーナルMokuzai Gakkaishi/Journal of the Japan Wood Research Society
47
発行部数4
出版物ステータス出版済み - 10 22 2001

Fingerprint

Desorption
Anisotropy
Electron microscopes
Vacuum
Scanning
Drying
Cells
Water
Direction compound

All Science Journal Classification (ASJC) codes

  • Chemical Engineering(all)

これを引用

Observations by LV-SEM of shrinkage and anisotropy of tracheid cells with desorption. / Mikajiri, Naoto; Matsumura, Junji; Okuma, Motoaki; Oda, Kazuyuki.

:: Mokuzai Gakkaishi/Journal of the Japan Wood Research Society, 巻 47, 番号 4, 22.10.2001, p. 289-294.

研究成果: ジャーナルへの寄稿記事

@article{2249901efdf647e78bc24f8244f3593b,
title = "Observations by LV-SEM of shrinkage and anisotropy of tracheid cells with desorption",
abstract = "Transverse Shrinkage and its anisotropy in radiata pine and spruce were investigated by means of a LV-SEM (Low-Vacuum Scanning Electron Microscope), that allows observation of water-containing specimens. The shrinkage of tracheid cells from the saturated to the dry condition was determined by measuring tangential diameter of tracheid and lumen, radial diameter of tracheid and lumen, and thickness of tangential and radial walls. Four types of specimens, namely isolated earlywood, isolated latewood, earlywood including latewood, and latewood including earlywood were used in this study. The results are summarized as follow: The lumina shrank anisotropically by drying. This means that the tracheid cell walls shrank in width the same as in thickness. The shrinkage in width was greater for tangential walls than that for radial walls. The shrinkage in thickness was almost the same for tangential and radial walls in all specimens. Therefore, anisotropy in tracheids occurring during drying was brought about by the difference in shrinkage in width between tangential and radial walls. The shrinkage in the tangential direction of earlywood including latewood was greater than that of isolated earlywood. This suggests that latewood increases the shrinkage of earlywood in the tangential direction. Earlywood did not affect the shrinkage of latewood in any direction. Both isolated earlywood and isolated latewood exhibit anisotropy of transverse shrinkage.",
author = "Naoto Mikajiri and Junji Matsumura and Motoaki Okuma and Kazuyuki Oda",
year = "2001",
month = "10",
day = "22",
language = "English",
volume = "47",
pages = "289--294",
journal = "Mokuzai Gakkaishi/Journal of the Japan Wood Research Society",
issn = "0021-4795",
publisher = "日本木材学会",
number = "4",

}

TY - JOUR

T1 - Observations by LV-SEM of shrinkage and anisotropy of tracheid cells with desorption

AU - Mikajiri, Naoto

AU - Matsumura, Junji

AU - Okuma, Motoaki

AU - Oda, Kazuyuki

PY - 2001/10/22

Y1 - 2001/10/22

N2 - Transverse Shrinkage and its anisotropy in radiata pine and spruce were investigated by means of a LV-SEM (Low-Vacuum Scanning Electron Microscope), that allows observation of water-containing specimens. The shrinkage of tracheid cells from the saturated to the dry condition was determined by measuring tangential diameter of tracheid and lumen, radial diameter of tracheid and lumen, and thickness of tangential and radial walls. Four types of specimens, namely isolated earlywood, isolated latewood, earlywood including latewood, and latewood including earlywood were used in this study. The results are summarized as follow: The lumina shrank anisotropically by drying. This means that the tracheid cell walls shrank in width the same as in thickness. The shrinkage in width was greater for tangential walls than that for radial walls. The shrinkage in thickness was almost the same for tangential and radial walls in all specimens. Therefore, anisotropy in tracheids occurring during drying was brought about by the difference in shrinkage in width between tangential and radial walls. The shrinkage in the tangential direction of earlywood including latewood was greater than that of isolated earlywood. This suggests that latewood increases the shrinkage of earlywood in the tangential direction. Earlywood did not affect the shrinkage of latewood in any direction. Both isolated earlywood and isolated latewood exhibit anisotropy of transverse shrinkage.

AB - Transverse Shrinkage and its anisotropy in radiata pine and spruce were investigated by means of a LV-SEM (Low-Vacuum Scanning Electron Microscope), that allows observation of water-containing specimens. The shrinkage of tracheid cells from the saturated to the dry condition was determined by measuring tangential diameter of tracheid and lumen, radial diameter of tracheid and lumen, and thickness of tangential and radial walls. Four types of specimens, namely isolated earlywood, isolated latewood, earlywood including latewood, and latewood including earlywood were used in this study. The results are summarized as follow: The lumina shrank anisotropically by drying. This means that the tracheid cell walls shrank in width the same as in thickness. The shrinkage in width was greater for tangential walls than that for radial walls. The shrinkage in thickness was almost the same for tangential and radial walls in all specimens. Therefore, anisotropy in tracheids occurring during drying was brought about by the difference in shrinkage in width between tangential and radial walls. The shrinkage in the tangential direction of earlywood including latewood was greater than that of isolated earlywood. This suggests that latewood increases the shrinkage of earlywood in the tangential direction. Earlywood did not affect the shrinkage of latewood in any direction. Both isolated earlywood and isolated latewood exhibit anisotropy of transverse shrinkage.

UR - http://www.scopus.com/inward/record.url?scp=0034784668&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034784668&partnerID=8YFLogxK

M3 - Article

VL - 47

SP - 289

EP - 294

JO - Mokuzai Gakkaishi/Journal of the Japan Wood Research Society

JF - Mokuzai Gakkaishi/Journal of the Japan Wood Research Society

SN - 0021-4795

IS - 4

ER -