{"created":"2021-03-01T06:34:07.754480+00:00","id":28331,"links":{},"metadata":{"_buckets":{"deposit":"d620af9e-029b-4a16-b6d5-7b021b0516fe"},"_deposit":{"id":"28331","owners":[],"pid":{"revision_id":0,"type":"depid","value":"28331"},"status":"published"},"_oai":{"id":"oai:niigata-u.repo.nii.ac.jp:00028331","sets":["453:456","485:872:1583:1593"]},"item_7_alternative_title_1":{"attribute_name":"その他のタイトル","attribute_value_mlt":[{"subitem_alternative_title":"Evaluation of Gas-Liquid Flow in Model Pipeline by Acousto-Ultrasonic Method"}]},"item_7_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2012-03","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"2","bibliographicPageEnd":"163","bibliographicPageStart":"159","bibliographicVolumeNumber":"64","bibliographic_titles":[{"bibliographic_title":"新潟大学農学部研究報告"},{"bibliographic_title":"新潟大学農学部研究報告","bibliographic_titleLang":"en"}]}]},"item_7_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"農業用パイプラインにおける空気連行現象は、混入後の脈動や圧力上昇、通水能力の低下、振動・騒音など水理性能や構造性能の甚大な影響を及ぼす。本研究では、農業用パイプラインに発生する気液二相流を対象にAU（Acousto-Ultrasonic）法による流動様式の特性評価を試みた結果を報告する。実験的検討は、モデルパイプライン内に通水量と給気量を調整した24種の通水条件を設定して行った。超音波の入力条件は、周波数：2MHz、電圧：300V である。受信側センサは、共振型AE センサを用いた。検討の結果，モデルパイプラインにおいて再現した満流、層状流、プラグ流および気泡流では、検出波特性が流動様式により変質し、その定量化にはAE パラメータ（平均周波数、AE エネルギおよび発生頻度）の有効性が高いことが明らかになった。","subitem_description_type":"Abstract"},{"subitem_description":"Deterioration of a pipeline system is normally realized by an accident of water-leakage due to damage accumulationof pipe materials. For effective maintenance and management of pipeline system, it is necessary to evaluate not only thedegree of damage but also the water-flow conditions (i.e. gas-liquid flow). In this study, acousto-ultrasonic (AU) method wasapplied to be detecting a gas-liquid flow in model pipeline system. The results show that a gas-liquid flow conditions couldbe quantitatively evaluated by using AE parameters, such as generation behavior, average frequency and AE energy. Itbecomes clear that the situation of gas-liquid flow in the pipeline system can be clearly identified through AE monitoring.Thus, it is demonstrated that AU monitoring is effective for qualifying the gas-liquid flow conditions in pipeline system.","subitem_description_type":"Abstract"}]},"item_7_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"162859","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Tetsuya, Suzuki"}]}]},"item_7_publisher_7":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"新潟大学農学部"}]},"item_7_select_19":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_select_item":"publisher"}]},"item_7_source_id_11":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AN00183393","subitem_source_identifier_type":"NCID"}]},"item_7_source_id_9":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"03858634","subitem_source_identifier_type":"ISSN"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"鈴木, 哲也"}],"nameIdentifiers":[{"nameIdentifier":"162858","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":"2019-08-20"}],"displaytype":"detail","filename":"64(2)_159-163.pdf","filesize":[{"value":"967.1 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"64(2)_159-163.pdf","url":"https://niigata-u.repo.nii.ac.jp/record/28331/files/64(2)_159-163.pdf"},"version_id":"4cc676de-ab8a-46a4-8cee-559dee2679df"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"気液二相流","subitem_subject_scheme":"Other"},{"subitem_subject":"パイプライン","subitem_subject_scheme":"Other"},{"subitem_subject":"非破壊検査","subitem_subject_scheme":"Other"},{"subitem_subject":"AU 法","subitem_subject_scheme":"Other"},{"subitem_subject":"Gas-liquid flow","subitem_subject_scheme":"Other"},{"subitem_subject":"Pipeline","subitem_subject_scheme":"Other"},{"subitem_subject":"Non-Destructive Testing","subitem_subject_scheme":"Other"},{"subitem_subject":"Acousto-Ultrasonic Method","subitem_subject_scheme":"Other"}]},"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":"AU法を用いたモデルパイプラインに発生する気液二相流の流動形態評価に関する研究","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"AU法を用いたモデルパイプラインに発生する気液二相流の流動形態評価に関する研究"},{"subitem_title":"AU法を用いたモデルパイプラインに発生する気液二相流の流動形態評価に関する研究","subitem_title_language":"en"}]},"item_type_id":"7","owner":"1","path":["456","1593"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-07-02"},"publish_date":"2012-07-02","publish_status":"0","recid":"28331","relation_version_is_last":true,"title":["AU法を用いたモデルパイプラインに発生する気液二相流の流動形態評価に関する研究"],"weko_creator_id":"1","weko_shared_id":null},"updated":"2022-12-15T03:58:23.384473+00:00"}