{"created":"2023-05-15T14:49:23.230303+00:00","id":67630,"links":{},"metadata":{"_buckets":{"deposit":"64cf6a59-30c0-4e6e-b3a6-353c88e9dcb4"},"_deposit":{"created_by":1,"id":"67630","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"67630"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00067630","sets":["10:28"]},"author_link":["664692","664695","664694","664693"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2003-10-08","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"テクネチウムは天然にはほとんど存在しない元素であったが、核実験や核燃料の再処理等により環境中に放出され、特にTc-99は物理学的半減期が長く、今後は問題となる放射性元素と目されている。しかし、テクネチウムに関しての水圏環境での挙動については情報が少なく、特に水生生物への蓄積等に関する情報は少ない。そこで、水槽実験で水生生物によるTcの生物濃縮パラメータを求めた。\n　軟体動物の水からの取り込みでは、海藻類を主食とするアワビ、サザエへの蓄積が高く、平衡時の濃縮係数はアワビの全身で４００程度と推定された。魚類においては、軟骨魚のサメを除いて水からの取り込み及び餌からの吸収も軟体動物と比較して低く、水取り込みの濃縮係数は１〜６程度、餌からの吸収率は１０％前後であった。軟骨魚のトラザメは水取り込み及び餌取り込みともに硬骨魚より高いTcの蓄積を示した。","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"日本放射線影響学会第４６回大会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"中原, 元和"}],"nameIdentifiers":[{"nameIdentifier":"664692","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松葉, 満江"}],"nameIdentifiers":[{"nameIdentifier":"664693","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"中原 元和","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"664694","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"松葉 満江","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"664695","nameIdentifierScheme":"WEKO"}]}]},"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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"水生生物によるテクネチウム濃縮","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"水生生物によるテクネチウム濃縮"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2003-11-12"},"publish_date":"2003-11-12","publish_status":"0","recid":"67630","relation_version_is_last":true,"title":["水生生物によるテクネチウム濃縮"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T20:35:31.165880+00:00"}