{"created":"2023-06-20T14:38:59.627335+00:00","id":5654,"links":{},"metadata":{"_buckets":{"deposit":"611a368d-b6da-494a-b06a-33906afb3393"},"_deposit":{"created_by":1,"id":"5654","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"5654"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00005654","sets":["1887:1891","9:789:972:990"]},"author_link":["27740","27742","27741","27746","27744","27745","27747","27743"],"item_5_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Measurement of aerodynamics forces exerted on baseballs by a high-speed video camera"}]},"item_5_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2007-12-28","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"30","bibliographicPageStart":"27","bibliographicVolumeNumber":"JAXA-SP-07-009","bibliographic_titles":[{"bibliographic_title":"宇宙航空研究開発機構特別資料: 境界層遷移の解明と制御研究会講演論文集　第39回"},{"bibliographic_title":"JAXA Special Publication: Proceedings of the 39th JAXA Workshops on Investigation and Control of Boundary-Layer Transition","bibliographic_titleLang":"en"}]}]},"item_5_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Using a high-speed video camera, we have recorded the trajectory and the rotation of a hard baseball and a sphere thrown by pitching machines. We measured the drag and lift coefficients by analyzing the video images. We altered pitching machines on the market in order to throw a 'gyro-ball', whose rotational axis lies almost in the translational direction. The drag coefficient of a gyro-ball decreases with the Reynolds numbers (Re). For a fast-ball, the drag coefficient doesn't depend on Re and the lift coefficient is increases with the Re and the Spin Parameter (SP). The drag coefficient of a sphere is larger than that of a baseball for fast- and gyro-pitches, indicating that seams on the ball surface have substantial influence on the flow field.","subitem_description_type":"Other"}]},"item_5_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: AA0063608009","subitem_description_type":"Other"}]},"item_5_description_33":{"attribute_name":"レポート番号","attribute_value_mlt":[{"subitem_description":"レポート番号: JAXA-SP-07-009","subitem_description_type":"Other"}]},"item_5_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙航空研究開発機構"}]},"item_5_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Japan Aerospace Exploration Agency (JAXA)"}]},"item_5_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"1349-113X","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11984031","subitem_source_identifier_type":"NCID"}]},"item_5_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"電気通信大学"},{"subitem_text_value":"電気通信大学"},{"subitem_text_value":"電気通信大学"},{"subitem_text_value":"理化学研究所 情報基盤センター"}]},"item_5_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"University of Electro-Communications"},{"subitem_text_language":"en","subitem_text_value":"University of Electro-Communications"},{"subitem_text_language":"en","subitem_text_value":"University of Electro-Communications"},{"subitem_text_language":"en","subitem_text_value":"Institute of Physical and Chemical Research Advanced Computing and Communication Center"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"丸山, 純"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"横山, 佳之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"宮嵜, 武"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"姫野, 龍太郎"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Maruyama, Jun","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yokoyama, Yoshiyuki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Miyazaki, Takeshi","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Himeno, Ryutaro","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":"2020-01-16"}],"displaytype":"detail","filename":"63608009.pdf","filesize":[{"value":"545.7 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"63608009.pdf","url":"https://jaxa.repo.nii.ac.jp/record/5654/files/63608009.pdf"},"version_id":"083012bb-20a5-4592-805f-8c15b6d11dc3"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"流体力","subitem_subject_scheme":"Other"},{"subitem_subject":"硬式野球ボール","subitem_subject_scheme":"Other"},{"subitem_subject":"回転球","subitem_subject_scheme":"Other"},{"subitem_subject":"スピン","subitem_subject_scheme":"Other"},{"subitem_subject":"レイノルズ数","subitem_subject_scheme":"Other"},{"subitem_subject":"高速度カメラ","subitem_subject_scheme":"Other"},{"subitem_subject":"空力特性","subitem_subject_scheme":"Other"},{"subitem_subject":"空力抵抗","subitem_subject_scheme":"Other"},{"subitem_subject":"抗力測定","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic force","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"hard baseball","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"rotating sphere","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"spin","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"Reynolds number","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"high speed camera","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic characteristic","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"aerodynamic drag","subitem_subject_language":"en","subitem_subject_scheme":"Other"},{"subitem_subject":"drag measurement","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":"conference paper","resourceuri":"http://purl.org/coar/resource_type/c_5794"}]},"item_title":"硬式野球ボールに働く流体力の測定","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"硬式野球ボールに働く流体力の測定"}]},"item_type_id":"5","owner":"1","path":["990","1891"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"5654","relation_version_is_last":true,"title":["硬式野球ボールに働く流体力の測定"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T08:10:02.187820+00:00"}