Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis
Identifieur interne : 000414 ( Istex/Corpus ); précédent : 000413; suivant : 000415Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis
Auteurs : R. Latif ; E. Aassif ; A. Moudden ; D. Decultot ; B. Faiz ; G. MazeSource :
- NDT and E International [ 0963-8695 ] ; 2000.
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Abstract
In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio b/a. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of b/a is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.
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DOI: 10.1016/S0963-8695(00)00003-7
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Aassif</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Moudden, A" sort="Moudden, A" uniqKey="Moudden A" first="A" last="Moudden">A. Moudden</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Decultot, D" sort="Decultot, D" uniqKey="Decultot D" first="D" last="Decultot">D. Decultot</name><affiliation><mods:affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</mods:affiliation></affiliation></author><author><name sortKey="Faiz, B" sort="Faiz, B" uniqKey="Faiz B" first="B" last="Faiz">B. 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Latif</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation><affiliation><mods:affiliation>Corresponding author. Tel.: +212-8-22-09-57; fax: +212-8-22-01-00</mods:affiliation></affiliation></author><author><name sortKey="Aassif, E" sort="Aassif, E" uniqKey="Aassif E" first="E" last="Aassif">E. Aassif</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Moudden, A" sort="Moudden, A" uniqKey="Moudden A" first="A" last="Moudden">A. Moudden</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Decultot, D" sort="Decultot, D" uniqKey="Decultot D" first="D" last="Decultot">D. Decultot</name><affiliation><mods:affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</mods:affiliation></affiliation></author><author><name sortKey="Faiz, B" sort="Faiz, B" uniqKey="Faiz B" first="B" last="Faiz">B. Faiz</name><affiliation><mods:affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</mods:affiliation></affiliation></author><author><name sortKey="Maze, G" sort="Maze, G" uniqKey="Maze G" first="G" last="Maze">G. Maze</name><affiliation><mods:affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</mods:affiliation></affiliation></author></analytic><monogr></monogr><series><title level="j">NDT and E International</title><title level="j" type="abbrev">JNDT</title><idno type="ISSN">0963-8695</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000">2000</date><biblScope unit="volume">33</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="373">373</biblScope><biblScope unit="page" to="376">376</biblScope></imprint><idno type="ISSN">0963-8695</idno></series><idno type="istex">F90E212DBB9B458226A80DA087335271F75C40E4</idno><idno type="DOI">10.1016/S0963-8695(00)00003-7</idno><idno type="PII">S0963-8695(00)00003-7</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0963-8695</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Acoustic response</term><term>Aluminium tube</term><term>Circumferential antisymmetric wave</term><term>Reduced cutoff frequency</term><term>Time–frequency</term><term>Wigner–Ville distribution</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio b/a. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of b/a is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.</div></front></TEI><istex><corpusName>elsevier</corpusName><author><json:item><name>R Latif</name><affiliations><json:string>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</json:string><json:string>Corresponding author. Tel.: +212-8-22-09-57; fax: +212-8-22-01-00</json:string></affiliations></json:item><json:item><name>E Aassif</name><affiliations><json:string>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</json:string></affiliations></json:item><json:item><name>A Moudden</name><affiliations><json:string>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</json:string></affiliations></json:item><json:item><name>D Decultot</name><affiliations><json:string>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</json:string></affiliations></json:item><json:item><name>B Faiz</name><affiliations><json:string>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</json:string></affiliations></json:item><json:item><name>G Maze</name><affiliations><json:string>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</json:string></affiliations></json:item></author><subject><json:item><lang><json:string>eng</json:string></lang><value>Time–frequency</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Wigner–Ville distribution</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Acoustic response</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Circumferential antisymmetric wave</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Reduced cutoff frequency</value></json:item><json:item><lang><json:string>eng</json:string></lang><value>Aluminium tube</value></json:item></subject><language><json:string>eng</json:string></language><originalGenre><json:string>Full-length article</json:string></originalGenre><abstract>In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio b/a. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of b/a is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.</abstract><qualityIndicators><score>2.359</score><pdfVersion>1.2</pdfVersion><pdfPageSize>595 x 794 pts</pdfPageSize><refBibsNative>true</refBibsNative><keywordCount>6</keywordCount><abstractCharCount>488</abstractCharCount><pdfWordCount>1471</pdfWordCount><pdfCharCount>8653</pdfCharCount><pdfPageCount>4</pdfPageCount><abstractWordCount>74</abstractWordCount></qualityIndicators><title>Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</title><pii><json:string>S0963-8695(00)00003-7</json:string></pii><genre><json:string>research-article</json:string></genre><host><volume>33</volume><pii><json:string>S0963-8695(00)X0038-2</json:string></pii><pages><last>376</last><first>373</first></pages><issn><json:string>0963-8695</json:string></issn><issue>6</issue><genre><json:string>journal</json:string></genre><language><json:string>unknown</json:string></language><title>NDT and E International</title><publicationDate>2000</publicationDate></host><categories><wos><json:string>MATERIALS SCIENCE, CHARACTERIZATION & TESTING</json:string></wos></categories><publicationDate>2000</publicationDate><copyrightDate>2000</copyrightDate><doi><json:string>10.1016/S0963-8695(00)00003-7</json:string></doi><id>F90E212DBB9B458226A80DA087335271F75C40E4</id><score>0.39902493</score><fulltext><json:item><original>true</original><mimetype>application/pdf</mimetype><extension>pdf</extension><uri>https://api.istex.fr/document/F90E212DBB9B458226A80DA087335271F75C40E4/fulltext/pdf</uri></json:item><json:item><original>false</original><mimetype>application/zip</mimetype><extension>zip</extension><uri>https://api.istex.fr/document/F90E212DBB9B458226A80DA087335271F75C40E4/fulltext/zip</uri></json:item><istex:fulltextTEI uri="https://api.istex.fr/document/F90E212DBB9B458226A80DA087335271F75C40E4/fulltext/tei"><teiHeader><fileDesc><titleStmt><title level="a" type="main" xml:lang="en">Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</title></titleStmt><publicationStmt><authority>ISTEX</authority><publisher>ELSEVIER</publisher><availability><p>©2000 Elsevier Science Ltd</p></availability><date>2000</date></publicationStmt><notesStmt><note type="content">Fig. 1: Geometry for the backscattered pressure of a plane wave by a tube showing the specular reflection and circumferential waves ( and ).</note><note type="content">Fig. 2: Impulse response backscattered by an aluminium tube of radii ratio b/a=0.90.</note><note type="content">Fig. 3: PWVL image of signal backscattered by an aluminium tube (b/a=0.97, 220</note> <note type="content">Fig. 4: PWVL image of signal backscattered by an aluminium tube (b/a=0.95, 130</note> <note type="content">Fig. 5: PWVL image of signal backscattered by an aluminium tube (b/a=0.90, 65</note> <note type="content">Fig. 6: Reduced cutoff frequency in function of radii ratio b/a of an aluminium tube (□ PWVL, — proper modes method).</note><note type="content">Table 1: Comparison between the reduced cutoff frequencies computed and estimated</note></notesStmt><sourceDesc><biblStruct type="inbook"><analytic><title level="a" type="main" xml:lang="en">Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</title><author xml:id="author-1"><persName><forename type="first">R</forename><surname>Latif</surname></persName><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation><affiliation>Corresponding author. Tel.: +212-8-22-09-57; fax: +212-8-22-01-00</affiliation></author><author xml:id="author-2"><persName><forename type="first">E</forename><surname>Aassif</surname></persName><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation></author><author xml:id="author-3"><persName><forename type="first">A</forename><surname>Moudden</surname></persName><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation></author><author xml:id="author-4"><persName><forename type="first">D</forename><surname>Decultot</surname></persName><affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</affiliation></author><author xml:id="author-5"><persName><forename type="first">B</forename><surname>Faiz</surname></persName><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation></author><author xml:id="author-6"><persName><forename type="first">G</forename><surname>Maze</surname></persName><affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</affiliation></author></analytic><monogr><title level="j">NDT and E International</title><title level="j" type="abbrev">JNDT</title><idno type="pISSN">0963-8695</idno><idno type="PII">S0963-8695(00)X0038-2</idno><imprint><publisher>ELSEVIER</publisher><date type="published" when="2000"></date><biblScope unit="volume">33</biblScope><biblScope unit="issue">6</biblScope><biblScope unit="page" from="373">373</biblScope><biblScope unit="page" to="376">376</biblScope></imprint></monogr><idno type="istex">F90E212DBB9B458226A80DA087335271F75C40E4</idno><idno type="DOI">10.1016/S0963-8695(00)00003-7</idno><idno type="PII">S0963-8695(00)00003-7</idno></biblStruct></sourceDesc></fileDesc><profileDesc><creation><date>2000</date></creation><langUsage><language ident="en">en</language></langUsage><abstract xml:lang="en"><p>In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio b/a. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of b/a is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.</p></abstract><textClass xml:lang="en"><keywords scheme="keyword"><list><head>Keywords</head><item><term>Time–frequency</term></item><item><term>Wigner–Ville distribution</term></item><item><term>Acoustic response</term></item><item><term>Circumferential antisymmetric wave</term></item><item><term>Reduced cutoff frequency</term></item><item><term>Aluminium tube</term></item></list></keywords></textClass></profileDesc><revisionDesc><change when="1999-12-20">Modified</change><change when="2000">Published</change></revisionDesc></teiHeader></istex:fulltextTEI><json:item><original>false</original><mimetype>text/plain</mimetype><extension>txt</extension><uri>https://api.istex.fr/document/F90E212DBB9B458226A80DA087335271F75C40E4/fulltext/txt</uri></json:item></fulltext><metadata><istex:metadataXml wicri:clean="Elsevier, elements deleted: ce:floats; body; tail"><istex:xmlDeclaration>version="1.0" encoding="utf-8"</istex:xmlDeclaration><istex:docType PUBLIC="-//ES//DTD journal article DTD version 4.5.2//EN//XML" URI="art452.dtd" name="istex:docType"><istex:entity SYSTEM="fx1" NDATA="IMAGE" name="fx1"></istex:entity><istex:entity SYSTEM="fx2" NDATA="IMAGE" name="fx2"></istex:entity><istex:entity SYSTEM="fx3" NDATA="IMAGE" name="fx3"></istex:entity><istex:entity SYSTEM="gr1" NDATA="IMAGE" name="gr1"></istex:entity><istex:entity SYSTEM="gr2" NDATA="IMAGE" name="gr2"></istex:entity><istex:entity SYSTEM="gr3" NDATA="IMAGE" name="gr3"></istex:entity><istex:entity SYSTEM="gr4" NDATA="IMAGE" name="gr4"></istex:entity><istex:entity SYSTEM="gr5" NDATA="IMAGE" name="gr5"></istex:entity><istex:entity SYSTEM="gr6" NDATA="IMAGE" name="gr6"></istex:entity></istex:docType><istex:document><converted-article version="4.5.2" docsubtype="fla" xml:lang="en"><item-info><jid>JNDT</jid><aid>329</aid><ce:pii>S0963-8695(00)00003-7</ce:pii><ce:doi>10.1016/S0963-8695(00)00003-7</ce:doi><ce:copyright type="full-transfer" year="2000">Elsevier Science Ltd</ce:copyright></item-info><head><ce:title>Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</ce:title><ce:author-group><ce:author><ce:given-name>R</ce:given-name><ce:surname>Latif</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref><ce:cross-ref refid="CORR1">*</ce:cross-ref></ce:author><ce:author><ce:given-name>E</ce:given-name><ce:surname>Aassif</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>A</ce:given-name><ce:surname>Moudden</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>D</ce:given-name><ce:surname>Decultot</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>b</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>B</ce:given-name><ce:surname>Faiz</ce:surname><ce:cross-ref refid="AFF1"><ce:sup>a</ce:sup></ce:cross-ref></ce:author><ce:author><ce:given-name>G</ce:given-name><ce:surname>Maze</ce:surname><ce:cross-ref refid="AFF2"><ce:sup>b</ce:sup></ce:cross-ref></ce:author><ce:affiliation id="AFF1"><ce:label>a</ce:label><ce:textfn>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</ce:textfn></ce:affiliation><ce:affiliation id="AFF2"><ce:label>b</ce:label><ce:textfn>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</ce:textfn></ce:affiliation><ce:correspondence id="CORR1"><ce:label>*</ce:label><ce:text>Corresponding author. Tel.: +212-8-22-09-57; fax: +212-8-22-01-00</ce:text></ce:correspondence></ce:author-group><ce:date-received day="14" month="6" year="1999"></ce:date-received><ce:date-revised day="20" month="12" year="1999"></ce:date-revised><ce:date-accepted day="27" month="12" year="1999"></ce:date-accepted><ce:abstract><ce:section-title>Abstract</ce:section-title><ce:abstract-sec><ce:simple-para>In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio <ce:italic>b</ce:italic>/<ce:italic>a</ce:italic>. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of <ce:italic>b</ce:italic>/<ce:italic>a</ce:italic> is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.</ce:simple-para></ce:abstract-sec></ce:abstract><ce:keywords class="keyword" xml:lang="en"><ce:section-title>Keywords</ce:section-title><ce:keyword><ce:text>Time–frequency</ce:text></ce:keyword><ce:keyword><ce:text>Wigner–Ville distribution</ce:text></ce:keyword><ce:keyword><ce:text>Acoustic response</ce:text></ce:keyword><ce:keyword><ce:text>Circumferential antisymmetric wave</ce:text></ce:keyword><ce:keyword><ce:text>Reduced cutoff frequency</ce:text></ce:keyword><ce:keyword><ce:text>Aluminium tube</ce:text></ce:keyword></ce:keywords></head></converted-article></istex:document></istex:metadataXml><mods version="3.6"><titleInfo lang="en"><title>Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</title></titleInfo><titleInfo type="alternative" lang="en" contentType="CDATA"><title>Determination of the cutoff frequency of an acoustic circumferential wave using a time–frequency analysis</title></titleInfo><name type="personal"><namePart type="given">R</namePart><namePart type="family">Latif</namePart><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation><affiliation>Corresponding author. Tel.: +212-8-22-09-57; fax: +212-8-22-01-00</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">E</namePart><namePart type="family">Aassif</namePart><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">A</namePart><namePart type="family">Moudden</namePart><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">D</namePart><namePart type="family">Decultot</namePart><affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">B</namePart><namePart type="family">Faiz</namePart><affiliation>Faculté des Sciences, Laboratoire d'Instrumentation et de Mesures, Université Ibn Zohr, 80000 Agadir, Morocco</affiliation><role><roleTerm type="text">author</roleTerm></role></name><name type="personal"><namePart type="given">G</namePart><namePart type="family">Maze</namePart><affiliation>Laboratoire d'Aacoustique Ultrasonore et d'Electronique (URA CNRS 1373), Université du Havre, Le Havre, France</affiliation><role><roleTerm type="text">author</roleTerm></role></name><typeOfResource>text</typeOfResource><genre type="research-article" displayLabel="Full-length article"></genre><originInfo><publisher>ELSEVIER</publisher><dateIssued encoding="w3cdtf">2000</dateIssued><dateModified encoding="w3cdtf">1999-12-20</dateModified><copyrightDate encoding="w3cdtf">2000</copyrightDate></originInfo><language><languageTerm type="code" authority="iso639-2b">eng</languageTerm><languageTerm type="code" authority="rfc3066">en</languageTerm></language><physicalDescription><internetMediaType>text/html</internetMediaType></physicalDescription><abstract lang="en">In this article, time–frequency representation of Wigner–Ville is used to analyse the acoustic signal backscattered by a thin elastic tube of radii ratio b/a. This analysis allows to determine the reduced cutoff frequency of the circumferential antisymmetric wave A1 propagating around the tube. The evolution of this reduced cutoff frequency in function of b/a is reported. The values obtained of reduced cutoff frequency are compared to the values computed from the proper modes method.</abstract><note type="content">Fig. 1: Geometry for the backscattered pressure of a plane wave by a tube showing the specular reflection and circumferential waves ( and ).</note><note type="content">Fig. 2: Impulse response backscattered by an aluminium tube of radii ratio b/a=0.90.</note><note type="content">Fig. 3: PWVL image of signal backscattered by an aluminium tube (b/a=0.97, 220</note> <note type="content">Fig. 4: PWVL image of signal backscattered by an aluminium tube (b/a=0.95, 130</note> <note type="content">Fig. 5: PWVL image of signal backscattered by an aluminium tube (b/a=0.90, 65</note> <note type="content">Fig. 6: Reduced cutoff frequency in function of radii ratio b/a of an aluminium tube (□ PWVL, — proper modes method).</note><note type="content">Table 1: Comparison between the reduced cutoff frequencies computed and estimated</note><subject lang="en"><genre>Keywords</genre><topic>Time–frequency</topic><topic>Wigner–Ville distribution</topic><topic>Acoustic response</topic><topic>Circumferential antisymmetric wave</topic><topic>Reduced cutoff frequency</topic><topic>Aluminium tube</topic></subject><relatedItem type="host"><titleInfo><title>NDT and E International</title></titleInfo><titleInfo type="abbreviated"><title>JNDT</title></titleInfo><genre type="journal">journal</genre><originInfo><dateIssued encoding="w3cdtf">200009</dateIssued></originInfo><identifier type="ISSN">0963-8695</identifier><identifier type="PII">S0963-8695(00)X0038-2</identifier><part><date>200009</date><detail type="volume"><number>33</number><caption>vol.</caption></detail><detail type="issue"><number>6</number><caption>no.</caption></detail><extent unit="issue pages"><start>351</start><end>438</end></extent><extent unit="pages"><start>373</start><end>376</end></extent></part></relatedItem><identifier type="istex">F90E212DBB9B458226A80DA087335271F75C40E4</identifier><identifier type="DOI">10.1016/S0963-8695(00)00003-7</identifier><identifier type="PII">S0963-8695(00)00003-7</identifier><accessCondition type="use and reproduction" contentType="copyright">©2000 Elsevier Science Ltd</accessCondition><recordInfo><recordContentSource>ELSEVIER</recordContentSource><recordOrigin>Elsevier Science Ltd, ©2000</recordOrigin></recordInfo></mods></metadata><enrichments><istex:catWosTEI uri="https://api.istex.fr/document/F90E212DBB9B458226A80DA087335271F75C40E4/enrichments/catWos"><teiHeader><profileDesc><textClass><classCode scheme="WOS">MATERIALS SCIENCE, CHARACTERIZATION & TESTING</classCode></textClass></profileDesc></teiHeader></istex:catWosTEI></enrichments><serie></serie></istex></record>Pour manipuler ce document sous Unix (Dilib)
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