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Analysis of periodical structures of woods

Research Project

Project/Area Number 61304024
Research Category

Grant-in-Aid for Co-operative Research (A)

Allocation TypeSingle-year Grants
Research Field 林産学
Research InstitutionKyoto University

Principal Investigator

HARADA Hiroshi  Kyoto University, Professor emeritus, 名誉教授 (30026497)

Co-Investigator(Kenkyū-buntansha) OKANO Takeshi  University of Tokyo, Professor, 農学部, 教授 (30011927)
FUKAZAWA Kazumi  Hokkaido University, Professor, 農学部, 教授 (40001408)
NORIMOTO Misato  Kyoto University, Associate professor, 木材研究所, 助教授 (20027163)
FUJITA Minoru  Kyoto University, Associate professor, 農学部, 助教授 (60026599)
SAIKI Hiroshi  Kyoto University, Professor, 農学部, 教授 (40026498)
Project Period (FY) 1986 – 1988
Project Status Completed (Fiscal Year 1988)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥6,500,000)
Fiscal Year 1988: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 1987: ¥1,400,000 (Direct Cost: ¥1,400,000)
Fiscal Year 1986: ¥3,600,000 (Direct Cost: ¥3,600,000)
Keywordswood structure / periodical distribution of wood cells / Fourier transformation / wood property / anisotropy of wood structure / 木材の視覚特性 / 木材の誘電特性
Research Abstract

In the new idea that "Woods is the assembly of various periodical structures from macro- to micro-levels and the wood property is affected by the periodicity", following subjects; environmental factors for wood production and the occurrence of periodicities; anisotropical periodicities on the arrangement of cells and tissues; the periodical distribution of main cell wall componemts; dielectric, acoustic and visual characteristics affecting wood properties, were examined and attmpted to be related with one another. The method for the analysis of periodicities was mainly performed by the fourier transformation . As the results, anisotropic periodicities of trancheid and vassel distributions on the transverese section, of ray distribution on the tangential section and the three-dimensional shapes and arrangements of fibers could be caught and were related to some wood properties. Cellulose microfibrils are suggested to be orientating periodically on their cross direction and lignin may be changed in its chemical structure during the depositing season in a year.

Report

(4 results)
  • 1988 Annual Research Report   Final Research Report Summary
  • 1987 Annual Research Report
  • 1986 Annual Research Report
  • Research Products

    (19 results)

All Other

All Publications (19 results)

  • [Publications] 藤田稔: 京都大学農学部演習林報告. No.60. 276-284 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤原健: 京都大学農学部演習林報告. No.60. 269-275 (1988)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 畑茂樹: 材料.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Fujita, Minoru.: "Periodival analysis of wood structure I. Some trials by the optical Fourier transformation." Bulletin of Kyoto University Forests.60. 276-284 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Fujiwara, Takeshi.: "Stereo-analysis of morphology of hardwood fibers with serial transverse sections" Bulletin of Kyoto University Forests.60. 269-275 (1988)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] Hata, Shigeki.: "Periodical analysis of wood structure II Two-dimensional analysis of tissue arrangements" Zairyo. in print.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1988 Final Research Report Summary
  • [Publications] 藤田稔: 京都大学農学部演習林報告. No.60. 276-284 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 藤原健: 京都大学農学部演習林報告. No.60. 269-275 (1988)

    • Related Report
      1988 Annual Research Report
  • [Publications] 畑茂樹: 材料.

    • Related Report
      1988 Annual Research Report
  • [Publications] 佐道健: 京都大学演習林報告. 59. 266-272 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤田稔: 京都大学演習林報告. 59. 248-257 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤原健: 京都大学演習林報告. 59. 258-265 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 高部圭司: 日本木材学会大会研究発表要旨集. 37. 52 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 杉森正敏: 日本木材学会大会研究発表要旨集. 37. 74 (1987)

    • Related Report
      1987 Annual Research Report
  • [Publications] 藤田稔: 日本木材学会大会研究発表要旨集. 33. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 藤田稔: 日本木材学会大会研究発表要旨集. 33. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 高部圭司: 日本木材学会大会研究発表要旨集. 33. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 藤原健: 日本木材学会大会研究発表要旨集. 33. (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 宮田生: 日本木材学会大会研究発表要旨集. 33. (1987)

    • Related Report
      1986 Annual Research Report

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Published: 1987-03-31   Modified: 2016-04-21  

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