{"created":"2023-06-20T15:04:06.611655+00:00","id":33323,"links":{},"metadata":{"_buckets":{"deposit":"fbf4b60c-3cab-499b-8386-9571837eeb2c"},"_deposit":{"created_by":1,"id":"33323","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"33323"},"status":"published"},"_oai":{"id":"oai:jaxa.repo.nii.ac.jp:00033323","sets":["1887:1890","1896:1898:1899:1912"]},"author_link":["416442","416443","416444","416441"],"item_9_alternative_title_2":{"attribute_name":"その他のタイトル（英）","attribute_value_mlt":[{"subitem_alternative_title":"Inflatable Venus Balloons at Low Altitudes"}]},"item_9_biblio_info_10":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2002-03","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"62","bibliographicPageStart":"51","bibliographicVolumeNumber":"44","bibliographic_titles":[{"bibliographic_title":"宇宙科学研究所報告. 特集: 大気球研究報告"}]}]},"item_9_description_16":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"高密度の大気をもつ金星では，比較的小型の気球により数ｋｇの観測器を４０ｋｍ以下の高度に浮遊させることができる．スーパープレッシャー型気球を採用することにより，非常に広範囲かつ長期間の飛翔が可能となる．ここでは金星の雲の下，高度３５～３７ｋｍを飛翔する気球を考える．水蒸気を浮力ガスとして使用する膨張型気球を提案する．この気球の気嚢は気密性フィルムである外層と水を保持する吸水性の内層からなる．パラシュートで金星大気中を降下する短時間に，周囲の高温大気から大面積の気球本体表面を通して流入する多量の熱によって，内面に保持されていた水を気化させる．この方法によれば，浮力ガスを水で輸送するため高圧ガス容器が不要であり，この水をあらかじめ気球内部に封入しておくことができるためガス注入装置も必要ない．したがって，非常に簡単，軽量で小型の金星気球プローブを構成することが可能となる．高温・高圧・酸性である金星大気の環境を考慮して，気球の形状や皮膜素材の比較，検討も行った．","subitem_description_type":"Abstract"}]},"item_9_description_17":{"attribute_name":"抄録（英）","attribute_value_mlt":[{"subitem_description":"Venus has an atmosphere of thick density so that a balloon of a relatively small volume can float at an altitude less than 40km with a payload of a few kilograms. A superpressure type of balloon can have a long lifetime and can travel a vast space by strong winds on Venus. We consider a balloon floating at altitudes of 35 to 37km below the Venus clouds. We propose an inflatable balloon using water vapor for the lifting gas, of which film has an outer layer for gas barrier and an inner layer for liquid water keeping. In the descent stage using a parachute, water held inside the balloon can be quickly vaporized by a lot of heat flux from the surrounding high temperature atmosphere owing to the large surface area of the balloon. As neither gas containers nor heat exchangers are necessary, we can construct a Venus balloon probe system of a simple, lightweight and small size. Selection of balloon shape and material for balloon envelope are also discussed in consideration of the Venusian environment such as high-temperature, high-pressure, and sulfuric acid.","subitem_description_type":"Other"}]},"item_9_description_32":{"attribute_name":"資料番号","attribute_value_mlt":[{"subitem_description":"資料番号: SA0200096000","subitem_description_type":"Other"}]},"item_9_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"宇宙科学研究所"}]},"item_9_publisher_9":{"attribute_name":"出版者（英）","attribute_value_mlt":[{"subitem_publisher":"Institute of Space and Astronautical Science"}]},"item_9_source_id_21":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0285-9920","subitem_source_identifier_type":"ISSN"}]},"item_9_source_id_24":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00354485","subitem_source_identifier_type":"NCID"}]},"item_9_text_6":{"attribute_name":"著者所属","attribute_value_mlt":[{"subitem_text_value":"宇宙科学研究所"},{"subitem_text_value":"宇宙科学研究所"}]},"item_9_text_7":{"attribute_name":"著者所属（英）","attribute_value_mlt":[{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"},{"subitem_text_language":"en","subitem_text_value":"Institute of Space and Astronautical Science (ISAS)"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"井筒, 直樹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"矢島, 信之"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Izutsu, Naoki","creatorNameLang":"en"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Yajima, Nobuyuki","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":"2020-01-24"}],"displaytype":"detail","filename":"SA0200096.pdf","filesize":[{"value":"766.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"SA0200096.pdf","url":"https://jaxa.repo.nii.ac.jp/record/33323/files/SA0200096.pdf"},"version_id":"adbb71fb-dff2-437f-b9b8-03d65c470fae"}]},"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":"departmental bulletin paper","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"膨張型低高度金星気球","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"膨張型低高度金星気球"}]},"item_type_id":"9","owner":"1","path":["1890","1912"],"pubdate":{"attribute_name":"公開日","attribute_value":"2015-03-26"},"publish_date":"2015-03-26","publish_status":"0","recid":"33323","relation_version_is_last":true,"title":["膨張型低高度金星気球"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-06-21T00:10:09.008869+00:00"}