{"created":"2024-03-29T07:46:29.449484+00:00","id":2000174,"links":{},"metadata":{"_buckets":{"deposit":"9493f36b-6e10-40dc-9d46-ea03e89203e9"},"_deposit":{"created_by":5,"id":"2000174","owner":"5","owners":[5],"pid":{"revision_id":0,"type":"depid","value":"2000174"},"status":"published"},"_oai":{"id":"oai:niit.repo.nii.ac.jp:02000174","sets":["34"]},"author_link":["5414","5415","5416","5417","12","1118","5409","5410","5411","5412","8","1295"],"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2017-10-12"},"bibliographicIssueNumber":"247","bibliographicNumberOfPages":"5","bibliographicPageEnd":"45","bibliographicPageStart":"41","bibliographicVolumeNumber":"117","bibliographic_titles":[{"bibliographic_title":"電子情報通信学会技術研究報告. MRIS, 磁気記録・情報ストレージ","bibliographic_titleLang":"ja"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"ハードディスク装置(HDD:hard disk drive)の高記録密度化を実現する方式として,シングル磁気記録(SMR:shingled magnetic recording)が採用されている．本稿では,グラニュラ媒体モデルを用いたSMRシミュレーションにおいて,面記録密度に適したリーダサイズとビットアスペクト比(BAR:bit aspect ratio)について，LDPC(low-density parity-check)符号化・繰返し復号化方式を適用した記録再生系でビット誤り率(BER:bit error rate)を求めて評価している.その結果,面記録密度が低い場合にはサイズの大きなリーダを用いることで良好な特性となり，面記録密度が高い場合にはサイズの小さなリーダを用いることで良好な特性となることが明らかとなった.また,4Tbit/in2の面記録密度の場合,100%リーダを用いた場合,誤り無く復号できるBARは2.5でのみであったが，70％リーダを用いることが可能であれば,BARが1.0～2.5において誤り無く復号できることが明らかとなった．","subitem_description_language":"ja","subitem_description_type":"Abstract"}]},"item_5_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"電子情報通信学会","subitem_publisher_language":"ja"}]},"item_5_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"Copyright©2017 by IEICE"}]},"item_5_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"0913-5685","subitem_source_identifier_type":"ISSN"}]},"item_5_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA12826772","subitem_source_identifier_type":"NCID"}]},"item_5_version_type_15":{"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":"仲村, 泰明","creatorNameLang":"ja"}],"familyNames":[{"familyName":"仲村","familyNameLang":"ja"}],"givenNames":[{"givenName":"泰明","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"西川, まどか","creatorNameLang":"ja"}],"familyNames":[{"familyName":"西川","familyNameLang":"ja"}],"givenNames":[{"givenName":"まどか","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"大沢, 寿","creatorNameLang":"ja"}],"familyNames":[{"familyName":"大沢","familyNameLang":"ja"}],"givenNames":[{"givenName":"寿","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"岡本, 好弘","creatorNameLang":"ja"}],"familyNames":[{"familyName":"岡本","familyNameLang":"ja"}],"givenNames":[{"givenName":"好弘","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"金井, 靖","creatorNameLang":"ja"}],"familyNames":[{"familyName":"金井","familyNameLang":"ja"}],"givenNames":[{"givenName":"靖","givenNameLang":"ja"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"村岡, 裕明","creatorNameLang":"ja"}],"familyNames":[{"familyName":"村岡","familyNameLang":"ja"}],"givenNames":[{"givenName":"裕明","givenNameLang":"ja"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","date":[{"dateType":"Available","dateValue":"2024-04-12"}],"displaytype":"detail","filename":"niit2023_14.pdf","filesize":[{"value":"1.8 MB"}],"format":"application/pdf","licensetype":"license_5","url":{"url":"https://niit.repo.nii.ac.jp/record/2000174/files/niit2023_14.pdf"},"version_id":"59da5506-0618-497f-9e08-3710f3505061"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"SMR"},{"subitem_subject":"BAR"},{"subitem_subject":"リーダーサイズ"},{"subitem_subject":"SMR"},{"subitem_subject":"BAR"},{"subitem_subject":"Reader size"}]},"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":"article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"SMRにおける面記録密度とリーダサイズに対するBARの一検討","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"SMRにおける面記録密度とリーダサイズに対するBARの一検討","subitem_title_language":"ja"}]},"item_type_id":"5","owner":"5","path":["34"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2024-04-12"},"publish_date":"2024-04-12","publish_status":"0","recid":"2000174","relation_version_is_last":true,"title":["SMRにおける面記録密度とリーダサイズに対するBARの一検討"],"weko_creator_id":"5","weko_shared_id":-1},"updated":"2024-03-29T08:13:07.921573+00:00"}