{"created":"2023-06-20T14:36:22.734233+00:00","id":2690,"links":{},"metadata":{"_buckets":{"deposit":"e9b52c26-bbb5-42ab-9dde-03a0bf2e10f0"},"_deposit":{"created_by":1,"id":"2690","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2690"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00002690","sets":["1887:1893","9:1090:1311:1323"]},"author_link":["8326","8329","8327","8330","8328","8325"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Direct observation of Piston Effect in a critical fluid"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2004-10-29","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"134","bibliographicPageStart":"129","bibliographicVolumeNumber":"JAXA-RM-04-011","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構研究開発資料: 平成15年度総合技術研究本部宇宙領域研究成果報告書:先行研究等"},{"bibliographic_title":"JAXA Research and Development Memorandum: FY15 Annual Report of Research & Development on Space Technology in the Institute of Space Technology and Aeronautics: Advanced Technology","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Thermal energy applied to a pure material near its critical point immediately makes a strong expansion. This causes an adiabatic compression in the front of the expansion and a large density difference is formed there. The difference with adiabatic energy is transported as an acoustic wave. This rapid heat transportation is called Piston Effect. In the present study, an ultra-sensitive and high-speed density measurement system was developed to observe the elementary process of Piston Effect. To demonstrate the performance of the system, the measurement of sound velocity in a critical fluid was conducted. Numerical simulations were also made to confirm the experimental results. Using the FFT method to both of the experiment and the simulation, the sound velocity could be precisely evaluated. The velocity profile versus temperature from the experimental results shows a good agreement with the simulation results and theoretical prediction, that is, the velocity rapidly decreases as the fluid approaches its critical point. This indicates that the present experiments and simulations complementally enable quantitative discussion of the critical phenomena.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0048129026","subitem_description_type":"Other"}]},"item_3_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-RM-04-011","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-1121","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11983593","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"},{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"},{"subitem_text_value":"宇宙航空研究開発機構 総合技術研究本部"}]},"item_3_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"},{"subitem_text_language":"en","subitem_text_value":"Japan Aerospace Exploration Agency Institute of Space Technology and Aeronautics"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"大西, 充"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉原, 正一"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"桜井, 誠人"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Onishi, Mitsuru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yoshihara, Shoichi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Sakurai, Masato","creatorNameLang":"en"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2020-01-15"}],"displaytype":"detail","filename":"48129026.pdf","filesize":[{"value":"1.3 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"48129026.pdf","url":"https://jaxa.repo.nii.ac.jp/record/2690/files/48129026.pdf"},"version_id":"d81055e4-f9ef-4e0b-b2cf-5d8b55d06331"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"直接観察","subitem_subject_scheme":"Other"},{"subitem_subject":"ピストン効果","subitem_subject_scheme":"Other"},{"subitem_subject":"臨界点","subitem_subject_scheme":"Other"},{"subitem_subject":"熱エネルギー","subitem_subject_scheme":"Other"},{"subitem_subject":"膨張","subitem_subject_scheme":"Other"},{"subitem_subject":"断熱圧縮","subitem_subject_scheme":"Other"},{"subitem_subject":"数値シミュレーション","subitem_subject_scheme":"Other"},{"subitem_subject":"FFT","subitem_subject_scheme":"Other"},{"subitem_subject":"direct observation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"piston effect","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"critical point","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"thermal energy","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"expansion","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"adiabatic compression","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"numerical simulation","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"FFT","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":"technical report","resourceuri":"http://purl.org/coar/resource_type/c_18gh"}]},"item_title":"臨界流体のピストン効果直接観察","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"臨界流体のピストン効果直接観察"}]},"item_type_id":"3","owner":"1","path":["1323","1893"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"2690","relation_version_is_last":true,"title":["臨界流体のピストン効果直接観察"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T09:17:49.527425+00:00"}