{"@context":{"@vocab":"https://cir.nii.ac.jp/schema/1.0/","rdfs":"http://www.w3.org/2000/01/rdf-schema#","dc":"http://purl.org/dc/elements/1.1/","dcterms":"http://purl.org/dc/terms/","foaf":"http://xmlns.com/foaf/0.1/","prism":"http://prismstandard.org/namespaces/basic/2.0/","cinii":"http://ci.nii.ac.jp/ns/1.0/","datacite":"https://schema.datacite.org/meta/kernel-4/","ndl":"http://ndl.go.jp/dcndl/terms/","jpcoar":"https://github.com/JPCOAR/schema/blob/master/2.0/"},"@id":"https://cir.nii.ac.jp/crid/1363670321175405440.json","@type":"Article","productIdentifier":[{"identifier":{"@type":"DOI","@value":"10.1119/1.14233"}},{"identifier":{"@type":"URI","@value":"https://pubs.aip.org/aapt/ajp/article-pdf/53/6/528/11849158/528_1_online.pdf"}}],"dc:title":[{"@value":"The conical bore in musical acoustics"}],"description":[{"type":"abstract","notation":[{"@value":"<jats:p>A survey of descriptive textbooks on musical acoustics shows a need for a legitimate, convincing explanation for the seemingly paradoxical behavior of the conical bore. We examine the differential equations and their solutions for spherically symmetric waves in three dimensions, settling on acoustic pressure as the variable of interest because it behaves more simply than particle velocity or displacement. Next we solve the boundary-value problem for all combinations of open and closed ends on truncated cones. The natural frequencies so obtained are then justified with plots of the pressure standing waves; it is at this point that we find a physically correct explanation that can be shared with students in a descriptive acoustics course. This pictorial approach is also used to explain the shapes of the input impedance curves for a straight pipe and a frustum. We conclude with a careful analysis of the successive distortions to which a pressure pulse is subjected as it bounces back and forth inside a frustum.</jats:p>"}]}],"creator":[{"@id":"https://cir.nii.ac.jp/crid/1383670321175405441","@type":"Researcher","foaf:name":[{"@value":"R. Dean Ayers"}],"jpcoar:affiliationName":[{"@value":"Department of Physics–Astronomy, California State University at Long Beach, Long Beach, California 90840"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670321175405442","@type":"Researcher","foaf:name":[{"@value":"Lowell J. Eliason"}],"jpcoar:affiliationName":[{"@value":"Department of Physics–Astronomy, California State University at Long Beach, Long Beach, California 90840"}]},{"@id":"https://cir.nii.ac.jp/crid/1383670321175405440","@type":"Researcher","foaf:name":[{"@value":"Daniel Mahgerefteh"}],"jpcoar:affiliationName":[{"@value":"Department of Physics–Astronomy, California State University at Long Beach, Long Beach, California 90840"}]}],"publication":{"publicationIdentifier":[{"@type":"PISSN","@value":"00029505"},{"@type":"EISSN","@value":"19432909"},{"@type":"PISSN","@value":"http://id.crossref.org/issn/00029505"}],"prism:publicationName":[{"@value":"American Journal of Physics"}],"dc:publisher":[{"@value":"American Association of Physics Teachers (AAPT)"}],"prism:publicationDate":"1985-06-01","prism:volume":"53","prism:number":"6","prism:startingPage":"528","prism:endingPage":"537"},"reviewed":"false","url":[{"@id":"https://pubs.aip.org/aapt/ajp/article-pdf/53/6/528/11849158/528_1_online.pdf"}],"createdAt":"2005-03-08","modifiedAt":"2023-08-07","relatedProduct":[{"@id":"https://cir.nii.ac.jp/crid/1050857593494828416","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Combined approach to estimate the depth of the magma surface in a shallow conduit at Aso volcano, Japan"}]},{"@id":"https://cir.nii.ac.jp/crid/1360580229823040000","@type":"Article","resourceType":"学術雑誌論文(journal article)","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@value":"Temporal variation in the depth of the magma surface at Aso volcano in 2014–2015"}]},{"@id":"https://cir.nii.ac.jp/crid/1390001205088515840","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"Recent progress in the acoustics of wind instruments."}]},{"@id":"https://cir.nii.ac.jp/crid/1391131406308191744","@type":"Article","relationType":["isReferencedBy"],"jpcoar:relatedTitle":[{"@language":"en","@value":"‘Buku-buku’ Sounds of Bubbles and Volcano Acoustics 2"},{"@language":"ja","@value":"泡の「ぶくぶく」音と火山の空振２"},{"@value":"泡の「ぶくぶく」音と火山の空振(2)非ニュートン流体表面での気泡の振動と破裂に伴う音の特徴"},{"@language":"ja-Kana","@value":"アワ ノ 「 ブク ブク 」 オト ト カザン ノ クウシン(2)ヒニュートン リュウタイ ヒョウメン デ ノ キホウ ノ シンドウ ト ハレツ ニ トモナウ オト ノ トクチョウ"}]}],"dataSourceIdentifier":[{"@type":"CROSSREF","@value":"10.1119/1.14233"},{"@type":"CROSSREF","@value":"10.1186/s40623-021-01523-z_references_DOI_ZZL9LinAetEXSxO0bCsuIQGiXTL"},{"@type":"CROSSREF","@value":"10.1007/s00445-022-01616-x_references_DOI_ZZL9LinAetEXSxO0bCsuIQGiXTL"},{"@type":"CROSSREF","@value":"10.1250/ast.22.169_references_DOI_ZZL9LinAetEXSxO0bCsuIQGiXTL"},{"@type":"CROSSREF","@value":"10.3811/jjmf.2020.t015_references_DOI_ZZL9LinAetEXSxO0bCsuIQGiXTL"}]}