<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>1870-3542</journal-id>
<journal-title><![CDATA[Revista mexicana de física E]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. mex. fís. E]]></abbrev-journal-title>
<issn>1870-3542</issn>
<publisher>
<publisher-name><![CDATA[Sociedad Mexicana de Física]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1870-35422017000100076</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Analizando ondas estacionarias en tubos abiertos y cerrados con el uso de smartphone]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Molina-Coronell]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Celin Mancera]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solano Mazo]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de la costa CUC  ]]></institution>
<addr-line><![CDATA[Barranquilla ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de la costa CUC  ]]></institution>
<addr-line><![CDATA[Barranquilla ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2017</year>
</pub-date>
<volume>63</volume>
<numero>1</numero>
<fpage>76</fpage>
<lpage>82</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1870-35422017000100076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1870-35422017000100076&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1870-35422017000100076&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[El presente proyecto propone el análisis del fenómeno de ondas estacionarias en tubos abiertos y cerrados utilizando para ello dos teléfonos celulares inteligentes o smartphones y un mini altavoz bluetooth. Se usaron aplicaciones de generador de ondas y analizador de espectros desarrollados bajo el sistema operativo Android, se graficaron los resultados medidos de frecuencia contra el numero de armónicos n, obteniendo una buena correlación de los datos, calculando las pendientes de líneas rectas, resultando la velocidad del sonido en el aire de 336.64 m/s y 340.4 m/s para tubos abiertos y cerrados respectivamente.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[This project proposes the analysis of the phenomenon of standing waves in open and closed tubes used to this, two smartphones and mini bluetooth speaker. Applications waveform generator and spectrum analyzer developed under the Android operating system used. The results of harmonic number n frequency plotted, obtaining a good correlation of data, calculating the slopes of straight lines, resulting in the speed of sound in air of 336.64 m/s 340.4 m/s for open and closed tubes respectively.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Generador de señales]]></kwd>
<kwd lng="es"><![CDATA[analizador de espectros]]></kwd>
<kwd lng="es"><![CDATA[ondas estacionarias en tubos abiertos]]></kwd>
<kwd lng="es"><![CDATA[ondas estacionarias en tubos cerrados]]></kwd>
<kwd lng="en"><![CDATA[Signal generator]]></kwd>
<kwd lng="en"><![CDATA[spectrum analyzer]]></kwd>
<kwd lng="en"><![CDATA[standing waves in open tubes]]></kwd>
<kwd lng="en"><![CDATA[standing waves in closed tubes]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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