<?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>1405-7743</journal-id>
<journal-title><![CDATA[Ingeniería, investigación y tecnología]]></journal-title>
<abbrev-journal-title><![CDATA[Ing. invest. y tecnol.]]></abbrev-journal-title>
<issn>1405-7743</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Facultad de Ingeniería]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1405-77432024000200007</article-id>
<article-id pub-id-type="doi">10.22201/fi.25940732e.2024.25.2.015</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Efficient coil design for transcranial magnetic stimulation using computational tools]]></article-title>
<article-title xml:lang="es"><![CDATA[Diseño eficiente de bobinas para estimulación magnética transcraneal utilizando herramientas computacionales]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramirez-Galindo]]></surname>
<given-names><![CDATA[Angel D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Olivares-Galván]]></surname>
<given-names><![CDATA[Juan Carlos]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corona-Sánchez]]></surname>
<given-names><![CDATA[Manuel A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Escarela-Pérez]]></surname>
<given-names><![CDATA[Rafael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Melgoza-Vazquez]]></surname>
<given-names><![CDATA[Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gonzalez-Montañez]]></surname>
<given-names><![CDATA[Felipe de Jesús]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Energía ]]></institution>
<addr-line><![CDATA[Unidad Azcapotzalco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Energía ]]></institution>
<addr-line><![CDATA[Unidad Azcapotzalco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma de la Ciudad de México  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Energía ]]></institution>
<addr-line><![CDATA[Unidad Azcapotzalco ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Tecnológico de Morelia  ]]></institution>
<addr-line><![CDATA[ Michoacán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Universidad Autónoma Metropolitana Departamento de Energía ]]></institution>
<addr-line><![CDATA[Unidad Azcapotzalco ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>0</fpage>
<lpage>0</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1405-77432024000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1405-77432024000200007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1405-77432024000200007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract In the last two decades, Transcranial Magnetic Stimulation (TMS) has been used in research protocols and clinical treatment of neurological disorders. In this work, we analyze the heating of a transcranial magnetic stimulation equipment, with the aim of reducing it using a novel design of stimulation coils. The operation of the equipment is limited by the overheating of the stimulation coils, such that the continuous use of the equipment during the therapy is impossible, and the device´s life time is affected. The first stage of the analysis consists of studying the response of the electrical excitation circuit through simulations, considering the use of concentric inductors to divide the magnitude of the current. This is complemented by multiphysical analysis with coupling between the magnetic field and heat transfer of two different coil geometries, showing the spatial distribution of the generated magnetic field and temperature rise in the space surrounding the stimulation coil. The main contribution of this research is the design of a stimulation coil using the finite element method, reducing the device´s operating temperature considering a practical coil geometry.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En las últimas dos décadas, la Estimulación Magnética Transcraneal (TMS) se ha utilizado en protocolos de investigación y tratamiento clínico de trastornos neurológicos. En este trabajo se analiza el calentamiento de un equipo de estimulación magnética transcraneal, con el objetivo de reducirlo mediante un novedoso diseño de bobinas de estimulación. El funcionamiento del equipo está limitado por el sobrecalentamiento de las bobinas de estimulación, de manera que es imposible el uso continuo del equipo durante la terapia, y la vida útil del dispositivo se ve afectada. La primera etapa del análisis consiste en estudiar la respuesta del circuito de excitación eléctrica a través de simulaciones, considerando el uso de inductores concéntricos para dividir la magnitud de la corriente. Esto se complementa con un análisis multifísico con acoplamiento entre el campo magnético y la transferencia de calor de dos geometrías de bobina diferentes, que muestra la distribución espacial del campo magnético generado y el aumento de temperatura en el espacio que rodea la bobina de estimulación. El principal aporte de esta investigación es el diseño de una bobina de estimulación utilizando el método de elementos finitos, reduciendo la temperatura de operación del dispositivo considerando una geometría práctica de bobina.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Coils]]></kwd>
<kwd lng="en"><![CDATA[electrical circuit]]></kwd>
<kwd lng="en"><![CDATA[finite element method]]></kwd>
<kwd lng="en"><![CDATA[induced electric field]]></kwd>
<kwd lng="en"><![CDATA[Transcranial Magnetic Stimulation]]></kwd>
<kwd lng="es"><![CDATA[Bobinas]]></kwd>
<kwd lng="es"><![CDATA[circuito eléctrico]]></kwd>
<kwd lng="es"><![CDATA[método de elemento finito]]></kwd>
<kwd lng="es"><![CDATA[campo eléctrico inducido]]></kwd>
<kwd lng="es"><![CDATA[Estimulación Magnética Transcraneal]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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