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order to understand the mechanical behaviour of coral calcareous sands under shear and compressive stress, it is necessary to adopt the measuring method which express adequately the degree to which particles of sand are crused. Various indices for particle breakage proposed by investigators were utilized to evaluate the amount of particle breakage developed under confined compressive tests for sands. According to comparison of the difference in methodes it was found that a useful index would be the ratio of percentage of particles of sand after test finer than D_\u003c10\u003e of original sand to percentage of particles of original sand finer D_\u003c10\u003e of original sand, Bc. For the sands from different sites, there appeared to be a unique relationship between Bc and stress ratio, applied stress divided by compressive yield stress.", "subitem_description_type": "Other"}, {"subitem_description": "\u7d00\u8981\u8ad6\u6587", "subitem_description_type": "Other"}]}, "item_1617186643794": {"attribute_name": "Publisher", "attribute_value_mlt": [{"subitem_1522300295150": "ja", "subitem_1522300316516": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8"}]}, "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/20.500.12000/3835"}]}, "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": "\u7409\u7403\u5927\u5b66\u8fb2\u5b66\u90e8\u5b66\u8853\u5831\u544a"}, {"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": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1991-12-04", "bibliographicIssueDateType": "Issued"}, "bibliographicIssueNumber": "38", "bibliographicPageEnd": "182", "bibliographicPageStart": "175"}]}, "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": "KJ00000161665.pdf", "future_date_message": "", "is_thumbnail": false, "mimetype": "", "size": 0, "url": {"objectType": "fulltext", "url": "https://u-ryukyu.repo.nii.ac.jp/record/2002864/files/KJ00000161665.pdf"}, "version_id": "6da0b65c-b200-49b5-86c3-a2e11e97dc49"}]}, "item_title": "\u3055\u3093\u3054\u77f3\u7070\u8cea\u7802\u306e\u7c92\u5b50\u7834\u7815\u306e\u8868\u793a(\u751f\u7523\u74b0\u5883\u5b66\u79d1)", "item_type_id": "15", "owner": "1", "path": ["1642837917528", "1642838407312"], "permalink_uri": "http://hdl.handle.net/20.500.12000/3835", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2008-02-14"}, "publish_date": "2008-02-14", "publish_status": "0", "recid": "2002864", "relation": {}, "relation_version_is_last": true, "title": ["\u3055\u3093\u3054\u77f3\u7070\u8cea\u7802\u306e\u7c92\u5b50\u7834\u7815\u306e\u8868\u793a(\u751f\u7523\u74b0\u5883\u5b66\u79d1)"], "weko_shared_id": -1}