{"created":"2023-06-20T15:14:00.849097+00:00","id":43984,"links":{},"metadata":{"_buckets":{"deposit":"53abc440-3a86-4b05-83d0-4b785132ff42"},"_deposit":{"created_by":1,"id":"43984","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"43984"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00043984","sets":["1887:1893","1896:1898:1913:1916"]},"author_link":["466865","466870","466879","466876","466871","466868","466863","466862","466875","466867","466869","466873","466872","466866","466878","466877","466864","466874"],"item_3_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Static Test of Noise Suppressors for FJR710 Turbofan Engine"}]},"item_3_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1980-01","bibliographicIssueDateType":"Issued"},"bibliographicPageStart":"29","bibliographicVolumeNumber":"401","bibliographic_titles":[{"bibliographic_title":"航空宇宙技術研究所資料"},{"bibliographic_title":"Technical Memorandum of National Aerospace Laboratory","bibliographic_titleLang":"en"}]}]},"item_3_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Inlet and fan exhaust noise suppressors for a high by-pass ratio turbofan engine (FJR710) were ground tested.The inlet and fan exhaust duct walls were lined with perforated-plate-on-honeycomb absorbers.Acoustically treated splitter rings could be inserted into the inlet duct for a greater noise attenuation.The inner and outer walls of the annular fan exhaust duct were lined with different depth absorbers for a broader band noise attenuation.Sound power attenuation spectra were obtained by an insertion loss technique using far field measurements.Noise from each treated duct was compared with noise from a hard wall duct without splitters.A maximum perceived noise level attenuation due to the suppressors of 16 PNdB was obtained at 95％ fan speed.Degradations of engine performance caused by the fully equipped suppressors with splitter rings were about 3％ of the engine thrust.No detectable thrust loss was measured in other experimental cases without splitter rings.","subitem_description_type":"Other"}]},"item_3_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: NALTM0401000","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: NAL TM-401","subitem_description_type":"Other"}]},"item_3_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"航空宇宙技術研究所"}]},"item_3_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"National Aerospace Laboratory(NAL)"}]},"item_3_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0452-2982","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":"AN00314334","subitem_source_identifier_type":"NCID"}]},"item_3_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"},{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"},{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"},{"subitem_text_value":"航空宇宙技術研究所航空機公害研究グループ"},{"subitem_text_value":"航空宇宙技術研究所原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"},{"subitem_text_value":"航空宇宙技術研究所原動機部"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"渡辺, 実"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"鳥崎, 忠雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"武田, 克己"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小林, 紘"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"関根, 静雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中山, 普"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"吉田, 晃"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"越沼, 威"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"松田, 幸雄"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"WATANABE, Minoru","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TORISAKI, Tadao","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"TAKEDA, Katsumi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KOBAYASHI, Hiroshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"SEKINE, Shizuo","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"NAKAYAMA, SUSUMU","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"YOSHIDA, Akira","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"KOSHINUMA, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"MATSUDA, Yukio","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":"2020-01-28"}],"displaytype":"detail","filename":"naltm00401.pdf","filesize":[{"value":"3.4 MB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"naltm00401.pdf","url":"https://jaxa.repo.nii.ac.jp/record/43984/files/naltm00401.pdf"},"version_id":"b9b9a045-089f-40e9-95c4-ee6e550e492b"}]},"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 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