{"created":"2023-05-15T12:04:14.861000+00:00","id":8781,"links":{},"metadata":{"_buckets":{"deposit":"b74fe840-94c9-4d73-946d-55f8951f0598"},"_deposit":{"created_by":3,"id":"8781","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"8781"},"status":"published"},"_oai":{"id":"oai:iwate-u.repo.nii.ac.jp:00008781","sets":["1468:1477:1478"]},"author_link":["70664","70670","70671","70666","70669","70668","70667","70665"],"item_41_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2014","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"6","bibliographicPageStart":"1","bibliographicVolumeNumber":"2","bibliographic_titles":[{"bibliographic_title":"国立大学法人岩手大学 情報処理センター研究紀要"},{"bibliographic_title":"Bulletin of Iwate University Super Computing and Information Sciences Center","bibliographic_titleLang":"en"}]}]},"item_41_date_6":{"attribute_name":"登録日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2014-03-27"}]},"item_41_description_11":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"小さな領域中にとったカオス力学系の複数個の初期状態から生じる複数のカオス軌道の時間変化を同時に追うことによって，カオスの過渡状態を研究した．ある時刻に限定すると，複数の軌道は点の集合として表現できる．この集合を雲と呼ぶ．雲の過渡状態として，拡散の様な散らばり広がる運動（通常の拡散と区別して擬拡散と呼ぶ）と形状の変形を別々に観測した．最初，小さな4次元立方体の中に均一に分布していた雲は，一旦，直線状に変化するが，カオス特有の引き延ばしと折り畳みによる変化を繰り返しながら，カオス・アトラクタ（定常状態）へと近づいていく．雲の形状の変化及び擬拡散は，初期状態の4次元立方体の大きさδに依存しており，実験から求めた関係式によって，フラクタル次元が約１に保たれる期間の長さを見積もることができた．このようなシステムを暗号に応用する場合には，安全性の面から直線のなどの規則的な形状にある期間を考慮に入れることは重要と思われる．","subitem_description_type":"Abstract"}]},"item_41_description_12":{"attribute_name":"Abstract","attribute_value_mlt":[{"subitem_description":"Transient state of a chaos has been studied with the time course of chaos orbits which start from different initial conditions within a small region.  A chaos orbit is represented as a point in a phase space at a single instant. A set of the points is called a cloud. The transition of the cloud involves diffusional motion (called pseudo-diffusional motion) and transformation of the shape of the cloud. At first a uniformly distributed cloud in 4D-cube, the shape once has been transformed into a line shape and then continuously transformed until reach a chaos attractor (steady state).The transformation of the cloud shape and the pseudo-diffusional motion depend on the size of the initial 4D-cube (δ). The period that keeps D=1 has been estimated experimentally. The result is useful for evaluating the safety of such chaotic cipher.","subitem_description_type":"Other"}]},"item_41_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{}],"names":[{"name":"YOSHIDA, Hitoaki"}]},{"nameIdentifiers":[{}],"names":[{"name":"TAIRA, Hiroto"}]},{"nameIdentifiers":[{}],"names":[{"name":"KOMORI, Touru"}]},{"nameIdentifiers":[{}],"names":[{"name":"NAKANISHI, Takahiro"}]}]},"item_41_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.15113/00008775","subitem_identifier_reg_type":"JaLC"}]},"item_41_publisher_14":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"岩手大学情報処理センター"}]},"item_41_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2188-4811","subitem_source_identifier_type":"ISSN"}]},"item_41_text_4":{"attribute_name":"著者(機関)","attribute_value_mlt":[{"subitem_text_value":"岩手大学情報メディアセンター"},{"subitem_text_value":"岩手大学大学院工学研究科"},{"subitem_text_value":"岩手大学大学院工学研究科"},{"subitem_text_value":"岩手大学情報メディアセンター"}]},"item_41_version_type_27":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_970fb48d4fbd8a85","subitem_version_type":"VoR"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"吉田, 等明"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"平, 寛人"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"小毛利, 徹"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"中西, 貴裕"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2016-11-14"}],"displaytype":"detail","filename":"bisic-n2p1-6.pdf","filesize":[{"value":"913.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"bisic-n2p1-6.pdf","url":"https://iwate-u.repo.nii.ac.jp/record/8781/files/bisic-n2p1-6.pdf"},"version_id":"31cf5999-a099-4a52-a46e-5ec242066ad2"}]},"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":"小さな領域中の雲を用いたカオス・ダイナミクス研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"小さな領域中の雲を用いたカオス・ダイナミクス研究"},{"subitem_title":"Study on Chaos Dynamics by Using a Cloud in a Small Region","subitem_title_language":"en"}]},"item_type_id":"41","owner":"3","path":["1478"],"pubdate":{"attribute_name":"公開日","attribute_value":"2014-03-27"},"publish_date":"2014-03-27","publish_status":"0","recid":"8781","relation_version_is_last":true,"title":["小さな領域中の雲を用いたカオス・ダイナミクス研究"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-05-15T13:41:13.313747+00:00"}