{"created":"2023-06-19T08:46:20.818740+00:00","id":5148,"links":{},"metadata":{"_buckets":{"deposit":"b2d82c63-4446-447b-b7b3-44f624103ac4"},"_deposit":{"created_by":14,"id":"5148","owners":[14],"pid":{"revision_id":0,"type":"depid","value":"5148"},"status":"published"},"_oai":{"id":"oai:kpu.repo.nii.ac.jp:00005148","sets":["47:273:431"]},"author_link":["8648"],"control_number":"5148","item_1696926521561":{"attribute_name":"その他（別言語等）","attribute_value_mlt":[{"subitem_alternative_title":"Mechanism of the formation and recovery of the drying set in wood (Forestry)","subitem_alternative_title_language":"en"}]},"item_3_biblio_info_12":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1987-11-18","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"81","bibliographicPageStart":"62","bibliographicVolumeNumber":"39","bibliographic_titles":[{"bibliographic_title":"京都府立大學學術報告. 農學","bibliographic_titleLang":"ja"},{"bibliographic_title":"The scientific reports of Kyoto Prefectural University. Agriculture","bibliographic_titleLang":"en"}]}]},"item_3_description_10":{"attribute_name":"抄録(日)","attribute_value_mlt":[{"subitem_description":"本研究は, 木材のドライングセットの発生と回復の条件, セット材の性質及び組織構造などについて検討し, セットの発生と回復の機構に関する新らたな解釈を提起したものである。主な内容は次のとおりである。1.木材含水率の減少と材温の急速な上昇がみられ, これによって数10%にも及ぶセットを発生するマイクロ波乾燥と, 温度が50℃一定で含水率の減少のみが進行する熱気乾燥におけるセットの発生について比較した。この検討によって, 従来不明なところが多かったセットに及ぼす湿熱の影響を100℃前後の温度域にわたって明確にし, この影響が動態水分に比べて顕著なものであることを明らかにした。2.一連の検討に供試した多くの樹種を針葉樹, 広葉樹散孔材と環孔材に分け, これらグループ間の比較からセットの発生及び回復に及ぼす動態水分の影響が, ヘミセルロース含有量の大きい広葉樹の両グループにおいて, また熱の影響が, リグニン含有量の大きい針葉樹グループにおいて顕著であることをみいだした。3.セットの発生と回復に伴う細胞の形状と壁の内表面にみられる変化をSEM観察し, 水分・熱による細胞壁の軟化で, 細胞壁の破壊や分離を伴うことなくセットが発生し, ほぼ可逆的に回復することを裏付けた。4.一連の検討結果に基づき, セットの発生・回復の機構は, セルロースからなるミクロフィブリルの弾性変形とヘミセルロース, リグニンからなるマトリックスのガラスーゴム状態間の変化ならびに凝集力の変化によるとする解釈を与えた。この解釈は従来の動的水分を中心に展開された機構に, 湿熱の影響を加え, これを重視したもので木材にみられる数%から数10%にも及ぶセットの説明に耐えうるものである。しかも, 検証実験を行った結果は, いずれも以上の解釈がほぼ妥当であることを示唆するものであった。","subitem_description_language":"ja","subitem_description_type":"Other"}]},"item_3_description_11":{"attribute_name":"抄録(英)","attribute_value_mlt":[{"subitem_description":"In the present paper, an interpretation on the mechanism of drying set has been given by investigating the formative and the recoverable conditions of set, the properties of set-woods and these anatomical structures. The details of contents are as follows; 1. The amount of set that occurred with accompanied by the reduction of moisture content and the rapit rise of temperature by means of the microwave radiation and those that occurred with only the reduction of moisture content by means of the hot-air drying were compared, and the influence of the moisture and the heat on the development of set were investigated to cover high temperature of about 100℃. The results indicated that the remarkable set is not the results of moisture content change, rather it is the results of heating under the water-saturated state. 2. The many species used a series of the experiments were classfied into the groups of the coniferous woods, the diffuse-porous woods and the ring-porous woods. From the comparison of set between those groups, the effects of moisture content change on the set is greatly affected for the both groups of hardwoods having a high hemicellulose content in comparison with the group of coniferous woods. And the hygrothermal effect is greatly affected for the group of the coniferous woods having the high lignin content in comparison with the group of hardwoods. 3. The cell shape and the inside surface of the cell wall of the set-woods and the recovered woods were observed to using the scanning electon microscope. The wood cell wall softened by the moisture and heat is able to developed the set without the destraction and the separation of cell wall, and moreover if the set-woods undergo again the moisture and heat treatments, it is recovered the set by the reversible changes. 4. From results obtained, an interpretation on the mechanism of the set is given in terms of the elastic deformation of the microfibriles composed of cellulose and the reversible changes between the grassly state and the rubbery state of matrix composed of lignin and hemicelluloses including the change of cohesive. Furthermore, the results of the inspected experiments also showed a good agreement with the above mentioned interpretation on the mechanism of set.","subitem_description_language":"en","subitem_description_type":"Other"}]},"item_3_source_id_1":{"attribute_name":"雑誌書誌ID","attribute_value_mlt":[{"subitem_source_identifier":"AN00062275","subitem_source_identifier_type":"NCID"}]},"item_3_source_id_20":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00757373","subitem_source_identifier_type":"PISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"飯田, 生穂","creatorNameLang":"ja"},{"creatorName":"イイダ, イクホ","creatorNameLang":"ja-Kana"},{"creatorName":"Iida, Ikuho","creatorNameLang":"en"}],"familyNames":[{},{},{}],"givenNames":[{},{},{}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2017-02-20"}],"displaytype":"detail","filename":"KJ00000079147.pdf","filesize":[{"value":"2.3 MB"}],"format":"application/pdf","mimetype":"application/pdf","url":{"label":"KJ00000079147.pdf","url":"https://kpu.repo.nii.ac.jp/record/5148/files/KJ00000079147.pdf"},"version_id":"a0d66052-ce35-44af-a786-27c0c52be761"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"departmental bulletin paper"}]},"item_title":"木材におけるドライングセットの発生と回復の機構(林学部門)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"木材におけるドライングセットの発生と回復の機構(林学部門)","subitem_title_language":"ja"}]},"item_type_id":"3","owner":"14","path":["431"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2017-02-20"},"publish_date":"2017-02-20","publish_status":"0","recid":"5148","relation_version_is_last":true,"title":["木材におけるドライングセットの発生と回復の機構(林学部門)"],"weko_creator_id":"14","weko_shared_id":-1},"updated":"2024-03-05T07:41:50.965332+00:00"}