{"created":"2024-06-19T05:42:06.114426+00:00","id":2007990,"links":{},"metadata":{"_buckets":{"deposit":"577772c2-b10c-4d1a-a2e2-866ad741993c"},"_deposit":{"created_by":10,"id":"2007990","owners":[10],"pid":{"revision_id":0,"type":"depid","value":"2007990"},"status":"published"},"_oai":{"id":"oai:fra.repo.nii.ac.jp:02007990","sets":["12:14:1716955731445"]},"author_link":[],"control_number":"2007990","item_10002_biblio_info_7":{"attribute_name":"bibliographic_information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1990-03","bibliographicIssueDateType":"Issued"},"bibliographicNumberOfPages":"13","bibliographicPageEnd":"63","bibliographicPageStart":"51","bibliographicVolumeNumber":"10","bibliographic_titles":[{"bibliographic_title":"水産工学研究所技報. 漁船工学","bibliographic_titleLang":"ja"},{"bibliographic_title":"Technical report of National Research Institute of Fisheries Engineering. Fishing boat and instrument","bibliographic_titleLang":"en"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The frequency characteristics of loudness and vibration were investigated with respect to the indicator diagram on a direct injection diesel engine. The engine noise was influenced by the distribution of the mechanical sound when the frequency was lower than 1 kHz. And over that frequency range, engine noise was mainly influenced by combustion sound on load operations. Levels of sound and vibration were proportional to the gradient of cylinder pressure. Compared with the pressure and noise waves, the damping coefficient of sound was linearly decreased to 3 kHz and increased in higher frequency as structural acoustic damping character of the diesel engine. This result was caused by the natural frequency of cylinder's bending vibration.","subitem_description_language":"en","subitem_description_type":"Abstract"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"水産工学研究所","subitem_publisher_language":"ja"},{"subitem_publisher":"National Research Institute of Fisheries Engineering","subitem_publisher_language":"en"}]},"item_10002_relation_16":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"nrife_gk_10_51","subitem_relation_type_select":"Local"}}]},"item_10002_relation_17":{"attribute_name":"関連サイト","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_language":"ja","subitem_relation_name_text":"日本農学文献記事索引(agriknowledge)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://agriknowledge.affrc.go.jp/RN/2010460282","subitem_relation_type_select":"URI"}}]},"item_10002_source_id_11":{"attribute_name":"item_10002_source_id_11","attribute_value_mlt":[{"subitem_source_identifier":"AN0035205X","subitem_source_identifier_type":"NCID"}]},"item_10002_source_id_9":{"attribute_name":"item_10002_source_id_9","attribute_value_mlt":[{"subitem_source_identifier":"0388-970X","subitem_source_identifier_type":"PISSN"}]},"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":"長谷川, 勝男","creatorNameLang":"ja"}],"familyNames":[{"familyName":"長谷川","familyNameLang":"ja"}],"givenNames":[{"givenName":"勝男","givenNameLang":"ja"}]}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"jpn"}]},"item_resource_type":{"attribute_name":"item_resource_type","attribute_value_mlt":[{"resourcetype":"article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"ディーゼル機関の燃焼騒音と振動","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ディーゼル機関の燃焼騒音と振動","subitem_title_language":"ja"},{"subitem_title":"Frequency Analysis of Loudness and Vibration on a Direct Injection Diesel Engine","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"10","path":["1716955731445"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-06-19"},"publish_date":"2024-06-19","publish_status":"0","recid":"2007990","relation_version_is_last":true,"title":["ディーゼル機関の燃焼騒音と振動"],"weko_creator_id":"10","weko_shared_id":-1},"updated":"2025-03-19T08:00:31.359206+00:00"}