{"created":"2021-03-01T06:05:23.435174+00:00","id":1715,"links":{},"metadata":{"_buckets":{"deposit":"99181d4f-9c44-4574-878a-3b20fd6c4d0e"},"_deposit":{"id":"1715","owners":[],"pid":{"revision_id":0,"type":"depid","value":"1715"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00001715","sets":["423:424:425","453:454"]},"item_5_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1995-02","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"1","bibliographicPageEnd":"93","bibliographicPageStart":"88","bibliographicVolumeNumber":"37","bibliographic_titles":[{"bibliographic_title":"IEEE Transactions on Electromagnetic Compatibility"},{"bibliographic_title":"IEEE Transactions on Electromagnetic Compatibility","bibliographic_titleLang":"en"}]}]},"item_5_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"The reduction of radio wave attenuation in rectangular tunnels is discussed. The attenuation of the dominant mode due to its field penetration into a lossy dielectric wall is reduced by means of the attachment of wire netting (mesh). First, a reflection coefficient from a mesh screen over a lossy surface is analytically evaluated. Then, based on a geometrical optical approach to the propagation model in tunnels, the attenuation of the dominant mode in a rectangular tunnel is derived using the reflection coefficient. The calculated attenuation constants are in good agreement with experimental ones obtained in a laboratory. Finally, the efficiency of attenuation reduction rate by the mesh shielding method is summarized as a function of spatial ratio of the mesh wire interval divided by the wavelength. It is shown that the efficiency of reduction rate by mesh is significant","subitem_description_type":"Abstract"}]},"item_5_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"19","nameIdentifierScheme":"WEKO"}],"names":[{"name":"山口, 芳雄"}]},{"nameIdentifiers":[{"nameIdentifier":"5179","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Sengaku, Masakazu"}]},{"nameIdentifiers":[{"nameIdentifier":"5181","nameIdentifierScheme":"WEKO"}],"names":[{"name":"仙石, 正和"}]}]},"item_5_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"IEEE"}]},"item_5_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"info:doi/10.1109/15.350245","subitem_relation_type_select":"DOI"}}]},"item_5_rights_15":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"©(1995) IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained the IEEE."}]},"item_5_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_5_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA0066781X","subitem_source_identifier_type":"NCID"}]},"item_5_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00189375","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Yamaguchi, Y."}],"nameIdentifiers":[{"nameIdentifier":"19","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Honda, T."}],"nameIdentifiers":[{"nameIdentifier":"5176","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sengoku, M."}],"nameIdentifiers":[{"nameIdentifier":"5177","nameIdentifierScheme":"WEKO"}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-07-29"}],"displaytype":"detail","filename":"6_0009.pdf","filesize":[{"value":"766.4 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"6_0009.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/1715/files/6_0009.pdf"},"version_id":"170f19de-9067-4e55-8bb8-0940fc333bad"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"tunnel","subitem_subject_scheme":"Other"},{"subitem_subject":"waveguide","subitem_subject_scheme":"Other"},{"subitem_subject":"attenuation constant","subitem_subject_scheme":"Other"},{"subitem_subject":"propagation loss","subitem_subject_scheme":"Other"},{"subitem_subject":"mesh","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Reduction of wave propagation loss by mesh in rectangular tunnels","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Reduction of wave propagation loss by mesh in rectangular tunnels"},{"subitem_title":"Reduction of wave propagation loss by mesh in rectangular tunnels","subitem_title_language":"en"}]},"item_type_id":"5","owner":"1","path":["454","425"],"pubdate":{"attribute_name":"公開日","attribute_value":"2008-04-08"},"publish_date":"2008-04-08","publish_status":"0","recid":"1715","relation_version_is_last":true,"title":["Reduction of wave propagation loss by mesh in rectangular tunnels"],"weko_creator_id":"1","weko_shared_id":2},"updated":"2022-12-15T03:34:25.642343+00:00"}