{"created":"2023-06-20T13:42:36.969648+00:00","id":150,"links":{},"metadata":{"_buckets":{"deposit":"646a1ed8-dcce-48c3-9346-79bcd7548e88"},"_deposit":{"created_by":2,"id":"150","owners":[2],"pid":{"revision_id":0,"type":"depid","value":"150"},"status":"published"},"_oai":{"id":"oai:fut.repo.nii.ac.jp:00000150","sets":["1"]},"author_link":["8970","8971"],"item_10002_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2008-05-31","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"38","bibliographicPageEnd":"30","bibliographicPageStart":"23","bibliographic_titles":[{"bibliographic_title":"福井工業大学研究紀要. 第一部"}]}]},"item_10002_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"This paper analyzes radio wave propagation characteristics in straight and curved tunnels with rectangular cross sections and multi-layer-structure walls. These walls consist of a surface material, concrete layer, and bedrock. The wavelengths are assumed to be small compared with the tunnel's cross section. In the analysis, the geometrical optic approximation is used to determine the radio wave propagation routes in those tunnels. Also, the author uses the calculation of the reflection loss for radio waves against tunnel multi-layer walls. In addition, the author gives an example of the calculation of radio wave propagation characteristics in straight and curved tunnels with rectangular cross sections.","subitem_description_type":"Abstract"}]},"item_10002_identifier_registration":{"attribute_name":"ID登録","attribute_value_mlt":[{"subitem_identifier_reg_text":"10.57375/00000144","subitem_identifier_reg_type":"JaLC"}]},"item_10002_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"福井工業大学"}]},"item_10002_relation_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"TF00008603","subitem_relation_type_select":"NCID"}}]},"item_10002_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"2868571","subitem_source_identifier_type":"ISSN"}]},"item_10002_version_type_20":{"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":"笠嶋, 善憲"}],"nameIdentifiers":[{"nameIdentifier":"8970","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kasashima, Yoshinori","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"8971","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":"2023-04-12"}],"displaytype":"detail","filename":"KJ00005074508.pdf","filesize":[{"value":"404.5 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"KJ00005074508.pdf","url":"https://fut.repo.nii.ac.jp/record/150/files/KJ00005074508.pdf"},"version_id":"cdcd3be6-a5d4-4acc-bdb5-48506b0b8444"}]},"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":"直線、湾曲したトンネル内電波伝搬特性の理論解析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"直線、湾曲したトンネル内電波伝搬特性の理論解析"},{"subitem_title":"Analysis of propagation characteristics of radio waves in straight and curved tunnels","subitem_title_language":"en"}]},"item_type_id":"10002","owner":"2","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2009-03-23"},"publish_date":"2009-03-23","publish_status":"0","recid":"150","relation_version_is_last":true,"title":["直線、湾曲したトンネル内電波伝搬特性の理論解析"],"weko_creator_id":"2","weko_shared_id":-1},"updated":"2023-06-20T14:39:00.672649+00:00"}