Zobrazeno 1 - 10
of 14
pro vyhledávání: '"Yukari Matsumura"'
Autor:
Yuji Ikami, Kana Yamashita, Miyuki Matsuo-Ueda, Hiroyuki Yamamoto, Yukari Matsumura, Masato Yoshida, Yosuke Matsuda, Tsubasa Tsunezumi
Publikováno v:
Wood Science and Technology. 55:125-153
When a squared lumber such as a beam and/or a bearer is produced from a log, they often show warps. Warp of the sawn lumber is practically not serious when the pith is located at the center of the cross-section, as in the lumber-with-pith, but causes
Publikováno v:
BioResources. 2018, Vol. 13 Issue 1, p1035-1041. 7p. 2 Diagrams, 3 Charts, 1 Graph.
Autor:
Miyuki Matsuo-Ueda, Yukari Matsumura, Masato Yoshida, Tsubasa Tsunezumi, Kana Yamashita, Jiang Zhuoting, Yosuke Matsuda, Yuji Ikami, Hiroyuki Yamamoto
A tree generates a complicated stress distribution inside the stem during its formation, which is called 'residual growth stress (RGS)'. The RGS often induces warp in a sawn lumber such as bow, crook, and other deformation, which causes severe losses
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::dccf5911965cab04d9a25548380dd493
https://www.scipedia.com/public/Yamamoto_et_al_2021a
https://www.scipedia.com/public/Yamamoto_et_al_2021a
Autor:
Hirofumi Nagao, Yukari Matsumura, Masaki Harada, Hideo Kato, Hirofumi Ido, Yuji Ikami, Shuetsu Saito, Yosuke Matsuda
Publikováno v:
Mokuzai Gakkaishi. 63:282-290
Autor:
Makoto Kiguchi, Atsuko Ishikawa, Masahiro Matsunaga, Toru Kanbayashi, Yuji Ikami, Yukari Matsumura, Masahiko Kobayashi, Yutaka Kataoka, Hiroshi Matsunaga
Publikováno v:
MOKUZAI HOZON (Wood Protection). 42:18-25
Publikováno v:
BioResources. 13
The appropriate diameter ratio of log top and butt ends when using a round bar (cylinder shape) as a log model for estimating the density and Young’s modulus of a log was investigated. Square timbers of Japanese cedar (Cryptomeria japonica D. Don)
Publikováno v:
Journal of Wood Science. 59:271-281
The purposes of this study were to accumulate fundamental data on wood properties within large Sugi logs and to take applicable variations in wood properties into consideration for sorting logs and sawing patterns. The characteristics of basic densit
Publikováno v:
Wood Material Science and Engineering. 8:26-36
A survey was conducted at nine sawmills in Japan to evaluate and compare the sawing of sugi (Cryptomeria japonica D. Don) logs of 30 cm and more in diameter. The purpose was fourfold: (1) to document sawing patterns appropriate to the large-diameter
Publikováno v:
Mokuzai Gakkaishi. 59:138-145
Publikováno v:
Forest Products Journal. 62:25-31
Appropriate log sorting and optimal sawing patterns are indispensable for efficient lumber production. It is also important to clarify the relationship between the quality of logs and that of sawn lumber to determine effective sorting and optimal saw