{"created":"2023-07-25T10:37:47.536564+00:00","id":184,"links":{},"metadata":{"_buckets":{"deposit":"1e9460bd-b26d-4cd1-bcf9-999090116093"},"_deposit":{"created_by":5,"id":"184","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"184"},"status":"published"},"_oai":{"id":"oai:jcga.repo.nii.ac.jp:00000184","sets":["1:9:47"]},"author_link":["171","361","362"],"control_number":"184","item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014-03-28","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1-2","bibliographicPageEnd":"39","bibliographicPageStart":"35","bibliographicVolumeNumber":"57","bibliographic_titles":[{"bibliographic_title":"海上保安大学校研究報告, 理工学系"},{"bibliographic_title":"Report of Japan Coast Guard Academy Part 2 (The Science and Engineering Section)","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The nocturnal is an instrument to know the local solar time indirectly by measuring the local hour angle of a specific star at night on the ocean.  In the northern hemisphere, except for \"the latitude by meridian altitude\", a way to measure the elevation of the Polaris is considered as a method for determining the own latitude. It was shown how to measure latitude roughly by  utilizing the nocturnal in the 17th century, there has been no progress since then.\n    In order to measure the hour angle of the Polaris, we made an instrument based on the principle of the nocturnal.  We attempted to determin the latitude using the method of elevation of the Polaris with this instrument.  As a result, it was confirmed that this method has sufficient precision to determin the own ship's latitude on the ocean.","subitem_description_type":"Abstract"}]},"item_10002_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15053/0000000184","subitem_identifier_reg_type":"JaLC"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"海上保安大学校"}]},"item_10002_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isIdenticalTo","subitem_relation_type_id":{"subitem_relation_type_id_text":"10.15053/2013.21.05","subitem_relation_type_select":"DOI"}}]},"item_10002_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN10088865","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0287-2951","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"田中, 隆博"},{"creatorName":"タナカ, タカヒロ","creatorNameLang":"ja-Kana"},{"creatorName":"TANAKA, Takahiro","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"171","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"吉原, 知里"},{"creatorName":"ヨシハラ, チサト","creatorNameLang":"ja-Kana"}],"nameIdentifiers":[{"nameIdentifier":"361","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"YOSHIHARA, Chisato","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"362","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2023-05-30"}],"displaytype":"detail","filename":"2_57-1-79-05_Tanaka.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"ノクターナルを利用した緯度測定","url":"https://jcga.repo.nii.ac.jp/record/184/files/2_57-1-79-05_Tanaka.pdf"},"version_id":"3af68c30-31c7-4603-ab1e-a8b5bed45001"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Nocturnal","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Latitude","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Celestial Navigation","subitem_subject_language":"en","subitem_subject_scheme":"Other"}]},"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","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"ノクターナルを利用した緯度測定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ノクターナルを利用した緯度測定","subitem_title_language":"ja"},{"subitem_title":"Determination of Latitude by Using Nocturnal","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"5","path":["47"],"pubdate":{"attribute_name":"公開日","attribute_value":"2023-05-30"},"publish_date":"2023-05-30","publish_status":"0","recid":"184","relation_version_is_last":true,"title":["ノクターナルを利用した緯度測定"],"weko_creator_id":"5","weko_shared_id":-1},"updated":"2023-10-05T22:21:34.259155+00:00"}