{"created":"2021-03-01T06:18:44.853215+00:00","id":11829,"links":{},"metadata":{"_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":["879:1183:1184:1247"]},"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 ^<14>C content in 4^<th> century BC Japanese camphor tree rings(Proceedings of the 19^<th> 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^<th> 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 ^<14>C, which is one of cosmogenic radioisotopes, is a good indicator of solar activity too. By determining the concentration of the ^<14>C in each tree ring, we can get information on the change of solar activity in grand solar minima like Maunder Minimum. Variation of decadal ^<14>C 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 ^<14>C 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 ^<14>C 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 ^<14>C content in Japanese camphor tree rings of 431 to 323 BC. The age, when this tree was growing has been determined by comparing ^<14>C records measured by us with world typical ^<14>C records called as the IntCal04. The period 431 to 323 BC covers start of ^<14>C increase to around its peak in the 4^<th> century BC solar minimum. We will measure and analyze the ^<14>C content during the last half of the 4^<th> 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<第2部> 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 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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,第2部)","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"紀元前4世紀、宮崎クスノキ材年輪中の放射性炭素濃度の測定(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,第2部)","subitem_title_language":"ja"}]},"item_type_id":"9","owner":"1","path":["1247"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2010-06-10"},"publish_date":"2010-06-10","publish_status":"0","recid":"11829","relation_version_is_last":true,"title":["紀元前4世紀、宮崎クスノキ材年輪中の放射性炭素濃度の測定(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,第2部)"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-01-16T03:58:20.950751+00:00"}