{"_buckets": {"deposit": "25f852ea-f117-47fb-b76b-4645e7f1a060"}, "_deposit": {"id": "2002582", "owners": [1], "pid": {"revision_id": 0, "type": "depid", "value": "2002582"}, "status": "published"}, "_oai": {"id": "oai:u-ryukyu.repo.nii.ac.jp:02002582", "sets": ["1642837921429", "1642838407312"]}, "author_link": [], "item_1617186331708": {"attribute_name": "Title", "attribute_value_mlt": [{"subitem_1551255647225": "さんご砂の透水係数に及ぼす細粒分の影響", "subitem_1551255648112": "ja"}, {"subitem_1551255647225": "Effects of fraction finer than 75μm on coefficient of permeability for carbonate sands", "subitem_1551255648112": "en"}]}, "item_1617186419668": {"attribute_name": "Creator", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "新城, 俊也", "creatorNameLang": "ja"}]}, {"creatorNames": [{"creatorName": "Shinjo, Toshiya", "creatorNameLang": "en"}]}]}, "item_1617186476635": {"attribute_name": "Access Rights", "attribute_value_mlt": [{"subitem_1522299639480": "open access", "subitem_1600958577026": "http://purl.org/coar/access_right/c_abf2"}]}, "item_1617186609386": {"attribute_name": "Subject", "attribute_value_mlt": [{"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "石灰質堆積物"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "変水位透水試験"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "透水係数"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "砂"}, {"subitem_1522299896455": "ja", "subitem_1522300014469": "Other", "subitem_1523261968819": "シルト"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Calcareous sediments"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Variable-head permeability"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Coefficient of permeability"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Sand"}, {"subitem_1522299896455": "en", "subitem_1522300014469": "Other", "subitem_1523261968819": "Silt"}]}, "item_1617186626617": {"attribute_name": "Description", "attribute_value_mlt": [{"subitem_description": "細粒分含有量5\u0026acd;84%のさんご礁堆積物について変水位透水試験を実施し, 透水係数に及ぼす細粒分含有量の影響について検討した。主な結果は次のようである。1) 細粒分含有量20%以上においては細粒分含有量と平均粒径との間に相関性が認められる。2) 透水係数の対数(In k)と間隙比eの間には線形関係が認められ, その傾きは細粒分含有量の増加にともなって増大する。3) 細粒分含有量20%以上では透水係数は(10)^\u003c-3\u003e\u0026acd;(10)^\u003c-4\u003e(cm/s)のオーダーにある。4) 細粒分含有量が増加すると, 透水係数kはe^3/(1+e)と比例関係が成立しなくなる。5) 透水係数は細粒分含有量の増加にともなって減少する。6) さんご礁堆積物の透水係数は細粒分含有量から推定可能である。", "subitem_description_type": "Other"}, {"subitem_description": "A series of variable-head permeability tests has been performed on reconstituted carbonate sand with various fraction finer than 75μm. Major conclusions obtained in this study are as follows. (1) There exists a liner relation in the relationship between the logarithm of the coefficient of permeability and void ratio for individual fraction content. (2) The value of permeability ranges between (10)^3cm/s and (10)^4cm/s for sands contained fraction more than 20%. (3) The relationship between the coefficient of permeability k and the content of fraction is derived in a given void ratio based on the liner relation for ln k versus void ratio e. (4) The coefficient of permeability of carbonate sands can be evaluated by using fraction finer than 75μm.", "subitem_description_type": "Other"}, {"subitem_description": "紀要論文", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "琉球大学農学部"}]}, "item_1617186702042": {"attribute_name": "Language", "attribute_value_mlt": [{"subitem_1551255818386": "jpn"}]}, "item_1617186783814": {"attribute_name": "Identifier", "attribute_value_mlt": [{"subitem_identifier_type": "HDL", "subitem_identifier_uri": "http://hdl.handle.net/20.500.12000/3419"}]}, "item_1617186920753": {"attribute_name": "Source Identifier", "attribute_value_mlt": [{"subitem_1522646500366": "ISSN", "subitem_1522646572813": "0370-4246"}, {"subitem_1522646500366": "NCID", "subitem_1522646572813": "AN00250548"}]}, "item_1617186941041": {"attribute_name": "Source Title", "attribute_value_mlt": [{"subitem_1522650068558": "ja", "subitem_1522650091861": "琉球大学農学部学術報告"}, {"subitem_1522650068558": "en", "subitem_1522650091861": "The Science Bulletin of the Faculty of Agriculture. University of the Ryukyus"}]}, "item_1617187056579": {"attribute_name": "Bibliographic Information", "attribute_value_mlt": [{"bibliographicIssueNumber": "47", "bibliographicPageEnd": "74", "bibliographicPageStart": "67"}]}, "item_1617258105262": {"attribute_name": "Resource Type", "attribute_value_mlt": [{"resourcetype": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_1617265215918": {"attribute_name": "Version Type", "attribute_value_mlt": [{"subitem_1522305645492": "VoR", "subitem_1600292170262": "http://purl.org/coar/version/c_970fb48d4fbd8a85"}]}, "item_1617605131499": {"attribute_name": "File", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "download_preview_message": "", "file_order": 0, "filename": "KJ00000161899.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002582/files/KJ00000161899.pdf"}, "version_id": "0d91e328-01fc-4953-9fc2-ab70e07765f2"}]}, "item_title": "さんご砂の透水係数に及ぼす細粒分の影響", "item_type_id": "15", "owner": "1", "path": ["1642837921429", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3419", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-08"}, "publish_date": "2008-02-08", "publish_status": "0", "recid": "2002582", "relation": {}, "relation_version_is_last": true, "title": ["さんご砂の透水係数に及ぼす細粒分の影響"], "weko_shared_id": -1}