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B.The fundamental tissues in the central part of the wood were high in moisture contents. It was gradually lowered toward the outward tissues.It was one-half of the central part in the outermost tissues. C.It was high in the upmost and lowest parts of the wood. Especially the central part of The upmost piece showed the highest value(1,200%). D.lt was lowest in the middle part (1.6m from the base) of the wood, being less than one-half of the upmost part. E.The bark also showed the same tendency with the wood, showing high value in the upper and lower parts. But the values were smaller than those of the wood. 2.Bulk density A.The bulk density was the reverse of the water contents, the central part of the wood being lowest and increasing toward the outer parts. B.It was lowest in the central parts of the upmost and lowest edges (80kg/m^3) of the Wood. It showed the highest value in outer part of the piece at the height of 1.1m. 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  1. 紀要論文
  2. 琉球大学農家政工学部学術報告
  3. 9号
  1. 部局別インデックス
  2. 工学部

ビロウ(Livistona chinensis var. subglobosa Becc.)幹材の生材含水率、容積密度数について

http://hdl.handle.net/20.500.12000/23151
http://hdl.handle.net/20.500.12000/23151
6af45476-9b21-414d-952d-8eb8bfe51ea7
名前 / ファイル ライセンス アクション
No9p303.pdf No9p303.pdf
Item type デフォルトアイテムタイプ(フル)(1)
公開日 2012-02-10
タイトル
タイトル ビロウ(Livistona chinensis var. subglobosa Becc.)幹材の生材含水率、容積密度数について
言語 ja
タイトル
タイトル Studies on the Moisture Content and Bulk Density In Green Stem of Livistona chinensis var. subglobosa Becc.
言語 en
作成者 仲宗根, 平男

× 仲宗根, 平男

ja 仲宗根, 平男

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Nakasone, Hirao

× Nakasone, Hirao

en Nakasone, Hirao

Search repository
アクセス権
アクセス権 open access
アクセス権URI http://purl.org/coar/access_right/c_abf2
内容記述
内容記述タイプ Other
内容記述 Ⅳ摘要\n含水率(1)含水率は400~1,200(%)の高い値を示し、その差も大きい。(2)中心部の基本組織が高く、周辺に次第に減少し、外周は中心部の1/2以下となっている。(3)幹の上部、下部が高く、殊に上端の中心部は1,200(%)の最高値を示している。(4)幹の中央部(1.6m)は低く、上端部の1/2以下である。(5)樹皮も上部、下部が高く、幹材と同傾向であるが、その値は材部より小である。(6)針葉樹材の分布状熊は心材部が低く、辺材部へ増加しているが、ビロウは逆の状態であり、その値も大きい。容積密度数(1)含水率分布と逆の状態で、中心部の含水率の高い処が容積密度数は低い値を示し、外周へ次第に増加している。(2)上端、下端中心部が最小値80kg/m^3、地上高1.1m外周に最大値200kg/m^3を示している。(3)針葉樹材においては分布状態は区々のようであるが、ビロウは中心部が小、周辺部へ次第に値が大となっている。(4)樹皮は関係を見い出せない。
内容記述
内容記述タイプ Other
内容記述 Studies were made on the moisture contents and bulk density of a fresh wood of Livistona chinensis var.subglobosa Becc.which was cut from the ground level to the height of 2.90 m in Urasoeson, from which six pieces were made at intervaIs of 50-60cm.The results were as follows. 1.Moisture contents A.The moisture contents of various parts measured ranged from 400 to 1,200(%). B.The fundamental tissues in the central part of the wood were high in moisture contents. It was gradually lowered toward the outward tissues.It was one-half of the central part in the outermost tissues. C.It was high in the upmost and lowest parts of the wood. Especially the central part of The upmost piece showed the highest value(1,200%). D.lt was lowest in the middle part (1.6m from the base) of the wood, being less than one-half of the upmost part. E.The bark also showed the same tendency with the wood, showing high value in the upper and lower parts. But the values were smaller than those of the wood. 2.Bulk density A.The bulk density was the reverse of the water contents, the central part of the wood being lowest and increasing toward the outer parts. B.It was lowest in the central parts of the upmost and lowest edges (80kg/m^3) of the Wood. It showed the highest value in outer part of the piece at the height of 1.1m. C.The bark could not be measured.
内容記述
内容記述タイプ Other
内容記述 紀要論文
出版者
言語 ja
出版者 琉球大学農家政工学部
言語
言語 jpn
資源タイプ
資源タイプ departmental bulletin paper
資源タイプ識別子 http://purl.org/coar/resource_type/c_6501
出版タイプ
出版タイプ NA
出版タイプResource http://purl.org/coar/version/c_be7fb7dd8ff6fe43
識別子
識別子 http://hdl.handle.net/20.500.12000/23151
識別子タイプ HDL
収録物識別子
収録物識別子タイプ ISSN
収録物識別子 0485-7828
収録物識別子
収録物識別子タイプ NCID
収録物識別子 AN00250570
収録物名
言語 ja
収録物名 琉球大学農家政工学部学術報告
収録物名
言語 en
収録物名 The science bulletin of the Division of Agriculture, Home Economics & Engineering, University of the Ryukyus
書誌情報
号 9, p. 303-307, 発行日 1962-12-01
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