{"_buckets": {"deposit": "420fbcc3-1c7a-40f5-8f86-e6f372e84b06"}, "_deposit": {"id": "11829", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11829"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00011829", "sets": ["1247"]}, "author_link": ["82341", "82342", "82343", "82344", "82345", "82346", "82347", "82348", "82349", "82350", "82351", "82352"], "item_1615768549627": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_9_alternative_title_19": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Measurement of ^\u003c14\u003eC content in 4^\u003cth\u003e century BC Japanese camphor tree rings(Proceedings of the 19^\u003cth\u003e Symposium on Chronological Studies at the Nagoya University Center for Chronological Research in 2006,Part 2)", "subitem_alternative_title_language": "en"}]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2007-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "111", "bibliographicPageStart": "105", "bibliographicVolumeNumber": "18", "bibliographic_titles": [{"bibliographic_title": "名古屋大学加速器質量分析計業績報告書", "bibliographic_titleLang": "ja"}]}]}, "item_9_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Sunspot numbers, which reflect solar activity, have presented clear 11-year periodicity since the beginning of the 18^\u003cth\u003e century. But in the period around 1645 to 1715 AD sunspots were nearly absent, so we can not know if 11-year periodicity of solar activity was continued or not during the period by the records of sunspot numbers. This period is called as the Maunder Minimum. Radiocarbon ^\u003c14\u003eC, which is one of cosmogenic radioisotopes, is a good indicator of solar activity too. By determining the concentration of the ^\u003c14\u003eC in each tree ring, we can get information on the change of solar activity in grand solar minima like Maunder Minimum. Variation of decadal ^\u003c14\u003eC content measured by Stuiver et al. shows that grand solar minima, a period solar activity was extremely weak for decades or more, occurred several times in the last 10000 years. Stuiver classifies grand solar minima into 3 categories depending on the length of their durations. The Maunder type minima have a period of 〜80 yr and the Sporer type minima last 〜40 yr longer. We have already obtained the records of ^\u003c14\u003eC content in Japanese cedar tree rings of 1413 to 1745 AD including the Spoerer Minimum and the Maunder Minimum with annual time resolution. As a result of frequency analysis of these ^\u003c14\u003eC records, we found that the Sun maintained its periodic activity even if during the minima. We found, however, the cycle length of the \"11-year cycle\" during the Maunder Minimum was around 14 years and that during the Spoerer Minimum was around 11 years. This suggests that a pattern of the \"11-year cycle\" cycle length variation depends on a type of minima. In order to verify this hypothesis, we have measured ^\u003c14\u003eC content in Japanese camphor tree rings of 431 to 323 BC. The age, when this tree was growing has been determined by comparing ^\u003c14\u003eC records measured by us with world typical ^\u003c14\u003eC records called as the IntCal04. The period 431 to 323 BC covers start of ^\u003c14\u003eC increase to around its peak in the 4^\u003cth\u003e century BC solar minimum. We will measure and analyze the ^\u003c14\u003eC content during the last half of the 4^\u003cth\u003e century BC solar minimum and find out the actual cycle length of the \"11-year cycle\".", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "第19回名古屋大学年代測定総合研究センターシンポジウム平成18(2006)年度報告\u003c第2部\u003e Proceedings of the 19th symposiumon on Chronological Studies at the Nagoya University Center for Chronological Research in 2006 日時:平成19 (2007)年1月15日(月)～17日(水) 会場:名古屋大学シンポジオン Date:January15th-17th, 2007 Venue:Nagoya Uhiversity Symposion Hall", "subitem_description_language": "ja", "subitem_description_type": "Other"}]}, "item_9_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/sumrua.18.105", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "名古屋大学年代測定資料研究センター", "subitem_publisher_language": "ja"}]}, "item_9_relation_43": {"attribute_name": "関連情報", "attribute_value_mlt": [{"subitem_relation_type": "isVersionOf", "subitem_relation_type_id": {"subitem_relation_type_id_text": "http://ci.nii.ac.jp/naid/110007150991/", "subitem_relation_type_select": "URI"}}]}, "item_9_rights_12": {"attribute_name": "権利", "attribute_value_mlt": [{"subitem_rights": "名古屋大学年代測定資料研究センター", "subitem_rights_language": "ja"}, {"subitem_rights": "本文データは学協会の許諾に基づきCiNiiから複製したものである", "subitem_rights_language": "ja"}]}, "item_9_select_15": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_9_text_14": {"attribute_name": "フォーマット", "attribute_value_mlt": [{"subitem_text_value": "application/pdf"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": 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"creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "82346", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "村木, 綏", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "82347", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Muraki, Yasushi", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "82348", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "宮原, ひろ子", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "82349", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Miyahara, Hiroko", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "82350", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "中村, 俊夫", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "82351", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakamura, Toshio", "creatorNameLang": "en"}], "nameIdentifiers": 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