<?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>0121-750X</journal-id>
<journal-title><![CDATA[Ingeniería]]></journal-title>
<abbrev-journal-title><![CDATA[ing.]]></abbrev-journal-title>
<issn>0121-750X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Distrital Francisco José de Caldas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-750X2020000200162</article-id>
<article-id pub-id-type="doi">10.14483/23448393.15611</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del Apantallamiento Electromagnético del Concreto a Partir de Simulaciones en Alta Frecuencia y la Aplicación del Modelo de Jonscher]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the Electromagnetic Shielding of Concrete from High-Frequency Simulations and the Application of the Jonscher Model]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Granados]]></surname>
<given-names><![CDATA[Camilo Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas]]></surname>
<given-names><![CDATA[Herbert Enrique]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santamaria]]></surname>
<given-names><![CDATA[Francisco]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de Colombia Grupo de investigación en compatibilidad electromagnética (EMC-UN) ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas Grupo de investigación en sistemas eléctricos y eficiencia energética ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas Grupo de compatibilidad e interferencia electromagnética (GCEM-UD) ]]></institution>
<addr-line><![CDATA[Bogotá D.C.]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>08</month>
<year>2020</year>
</pub-date>
<volume>25</volume>
<numero>2</numero>
<fpage>162</fpage>
<lpage>178</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-750X2020000200162&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-750X2020000200162&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-750X2020000200162&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Contexto:  Este artículo analiza la efectividad de apantallamiento electromagnético de varias estructuras de concreto en función de la variación del grosor y el contenido o nivel de humedad (NH) para un rango de frecuencias definido.  Método:  El estudio se fundamenta en la implementación de simulaciones en dos dimensiones (2D), a través del uso de un software basado en el método de elementos finitos (FEM) y se desarrolló a partir de un conjunto de valores obtenidos de la aplicación de modelos matemáticos para medios dieléctricos. Inicialmente, se caracterizan las propiedades eléctricas complejas de las estructuras (permitividad dieléctrica y conductividad) aplicando el modelo matemático de Jonscher de tres variables. Posteriormente, se evalúan dichas propiedades sobre diferentes estructuras de concreto para un rango de frecuencias determinado.  Resultados:  Se observó que el blindaje electromagnético ofrecido por el concreto aumenta cuando se incrementa el NH y el grosor de las estructuras. Adicionalmente, las pruebas evidencian que las pérdidas de energía por absorción son mayores en comparación con los demás tipos de pérdidas analizadas en el estudio.  Conclusiones:  Luego de la investigación se puede afirmar que modelo electromagnético de Jonscher ofrece una buena respuesta al ser aplicado a las propiedades eléctricas complejas del concreto en un rango de frecuencia desde 250 MHz hasta 700 MHz. Asimismo, al variar el grosor y el NH en las estructuras analizadas, se evidenció un aumento en la efectividad de apantallamiento electromagnético total. Debido a que el concreto es un medio dieléctrico imperfecto, las pérdidas de energía por reflexión son bajas comparadas con las pérdidas de absorción y de múltiples reflexiones. Aun así, este material estructural puede ser usado como apantallamiento natural contra perturbaciones electromagnéticas radiadas en la banda de UHF (por sus siglas en inglés de Ultra High Frequency).]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Context:  This paper analyzes the effectiveness of electromagnetic shielding of several concrete structures based on the variation of the thickness and the content or level of humidity (NH) for a defined frequency range.  Method:  The study is based on the implementation of simulations in two dimensions (2D) using a software based on the finite element method (FEM) and it was developed from a set of values obtained from the application of mathematical models for dielectric media. Initially, the complex electrical properties of the structures (dielectric permittivity and conductivity) are characterized by applying the Jonscher&#8217;s mathematical model of three variables. Subsequently, these properties are evaluated with different concrete structures for a specific frequency range.  Results:  It is observed that the electromagnetic shielding offered by the concrete increases when the NH and the thickness of the structures are increased. Additionally, the evidences show that energy losses due to absorption are greater compared to the other types of losses analyzed in the study.  Conclusions:  After the investigation, it can be affirmed that the Jonscher electromagnetic model offers a good response when it is applied to the complex electrical properties of concrete in a frequency range from 250 MHz up to 700 MHz. Also, by varying the thickness and the humidity level in the structures analyzed, an increase in the effectiveness of the total electromagnetic shielding was evidenced. Because concrete is an imperfect dielectric medium, energy losses by reflection are low compared to absorption losses and losses due to multiple reflections. However, this structural material can be used as a natural shield against radiated electromagnetic disturbances in the UHF band.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[apantallamiento electromagnético]]></kwd>
<kwd lng="es"><![CDATA[concreto]]></kwd>
<kwd lng="es"><![CDATA[modelo electromagnético de Jonscher]]></kwd>
<kwd lng="es"><![CDATA[propiedades eléctricas complejas]]></kwd>
<kwd lng="en"><![CDATA[electromagnetic shielding]]></kwd>
<kwd lng="en"><![CDATA[complex electrical properties]]></kwd>
<kwd lng="en"><![CDATA[concrete]]></kwd>
<kwd lng="en"><![CDATA[Jonscher electromagnetic model]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>[1]</label><nlm-citation citation-type="book">
<collab>International Electrotechnical Committee</collab>
<source><![CDATA[International standard IEC 61000 1-1, Electromagnetic compatibility (EMC)]]></source>
<year>2000</year>
<publisher-name><![CDATA[International Electrotechnical Committee]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<label>[2]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kaur]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Kakar]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Mandal]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Electromagnetic interference]]></source>
<year>2011</year>
<conf-name><![CDATA[ International Conference on Electronics Computer Technology]]></conf-name>
<conf-loc>Kanyakumari </conf-loc>
</nlm-citation>
</ref>
<ref id="B3">
<label>[3]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Keshtkar]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Maghoul]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Kalantarnia]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Elmiye]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Investigation of Shielding Effectiveness Caused by Incident PlaneWave on Conductive Enclosure in UHF Band]]></article-title>
<source><![CDATA[Applied Mechanics and Materials]]></source>
<year>2010</year>
<volume>110</volume>
<page-range>485-90</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>[4]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Antonini]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Orlandi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Stefano]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Shielding Effects of Reinforced Concrete Structures to Electromagnetic Fields due to GSM and UMTS Systems]]></article-title>
<source><![CDATA[IEEE Transactions on Magnetics]]></source>
<year>2003</year>
<volume>39</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>1582-5</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>[5]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Romanca]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ogrut¸an]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Aciu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Nicolae]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Methods of Investigating Construction Materials used for Intelligent Building Shielding]]></source>
<year>2008</year>
<conf-name><![CDATA[ International Conference on Optimization of Electrical and Electronic Equipment]]></conf-name>
<conf-loc>Brasov </conf-loc>
</nlm-citation>
</ref>
<ref id="B6">
<label>[6]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ogunsola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reggiani]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandrolini]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Shielding properties of conductive concrete against transient electromagnetic disturbances]]></source>
<year>2009</year>
<conf-name><![CDATA[ IEEE International Conference on Microwaves, Communications, Antennas and Electronics Systems]]></conf-name>
<conf-loc>Tel Aviv </conf-loc>
</nlm-citation>
</ref>
<ref id="B7">
<label>[7]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hyun]]></surname>
<given-names><![CDATA[S. Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Analysis of shielding effectiveness of reinforced concrete against high-altitude electromagnetic pulse]]></article-title>
<source><![CDATA[IEEE Transactions on Electromagnetic Compatibility]]></source>
<year>2014</year>
<volume>56</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1488-96</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>[8]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Emelyanenko]]></surname>
<given-names><![CDATA[A. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Doh]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[H. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Thiel]]></surname>
<given-names><![CDATA[D. V.]]></given-names>
</name>
</person-group>
<source><![CDATA[Microwave measurements in cured concrete. Experiment and modelling]]></source>
<year>2018</year>
<conf-name><![CDATA[ Australian Microwave Symposium]]></conf-name>
<conf-loc>Brisbane </conf-loc>
</nlm-citation>
</ref>
<ref id="B9">
<label>[9]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guan]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Duan]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Cheng]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Cement based electromagnetic shielding and absorbing building materials]]></article-title>
<source><![CDATA[Cement and Concrete Composites]]></source>
<year>2006</year>
<volume>28</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>468-74</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>[10]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ogunsola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reggiani]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandrolini]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Modelling shielding properties of concrete]]></source>
<year>2006</year>
<conf-name><![CDATA[ International Zurich Symposium on Electromagnetic Compatibility]]></conf-name>
<conf-loc>Singapur </conf-loc>
</nlm-citation>
</ref>
<ref id="B11">
<label>[11]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ogunsola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Reggiani]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Sandrolini]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Shielding effectiveness of concrete buildings]]></source>
<year>2005</year>
<conf-name><![CDATA[ International Symposium on Electromagnetic Compatibility and Electromagnetic Ecology]]></conf-name>
<conf-loc>San Petersburgo </conf-loc>
</nlm-citation>
</ref>
<ref id="B12">
<label>[12]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sandrolini]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Reggiani]]></surname>
<given-names><![CDATA[U.]]></given-names>
</name>
<name>
<surname><![CDATA[Ogunsola]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Modelling the electrical properties of concrete for shielding effectiveness prediction]]></article-title>
<source><![CDATA[Journal of Physics D: Applied Physics,]]></source>
<year>2007</year>
<volume>40</volume>
<numero>17</numero>
<issue>17</issue>
<page-range>5366-72</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>[13]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Mazzoli]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effect of graphene oxide and metallic fibers on the electromagnetic shielding effect of engineered cementitious composites]]></article-title>
<source><![CDATA[Journal of Building Engineering]]></source>
<year>2018</year>
<volume>18</volume>
<page-range>33-9</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>[14]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Laurens]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Balayssac]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rhazi]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Klysz]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Arliguie]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Non-destructive evaluation of concrete moisture by GPR technique: experimental study and direct modeling]]></article-title>
<source><![CDATA[Materials and Structures]]></source>
<year>2003</year>
<volume>38</volume>
<page-range>827-32</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>[15]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Askeland]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ciencia e Ingeniería de los Materiales]]></source>
<year>1998</year>
<publisher-loc><![CDATA[México D.F. ]]></publisher-loc>
<publisher-name><![CDATA[International Thomson Editores]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B16">
<label>[16]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Soutsos]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Bungey]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Millard]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Shaw]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Patterson]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dielectric properties of concrete and their influence on radar testing]]></article-title>
<source><![CDATA[NDT &amp; E International]]></source>
<year>2001</year>
<volume>34</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>419-25</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>[17]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Robert]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dielectric permittivity of concrete between 50 Mhz and 1 Ghz and GPR measurements for building materials evaluation]]></article-title>
<source><![CDATA[Journal of Applied Geophysics]]></source>
<year>1998</year>
<volume>40</volume>
<numero>1-3</numero>
<issue>1-3</issue>
<page-range>89-94</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>[18]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Shaari]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Millard]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Bungey]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Measurement of Radar Properties of Concrete for in Situ Structural Elements]]></article-title>
<source><![CDATA[Insight]]></source>
<year>2002</year>
<volume>44</volume>
<numero>12</numero>
<issue>12</issue>
<page-range>756-8</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>[19]</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Feitor]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Caldeirinha]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandes]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Leonor]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimation of Dielectric Concrete Properties from Power Measurements at 18. 7 and 60 GHz]]></source>
<year>2011</year>
<publisher-loc><![CDATA[Loughborough ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B20">
<label>[20]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Min]]></surname>
<given-names><![CDATA[M. G.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[K. H.]]></given-names>
</name>
</person-group>
<source><![CDATA[Estimation of Dielectric Properties of Concrete Using Backward Tracing (ITC-CSCC 2019)]]></source>
<year>2019</year>
<conf-name><![CDATA[ International Technical Conference on Circuits/Systems, Computers and Communications (ITC-CSCC)]]></conf-name>
<conf-loc>Jeju </conf-loc>
</nlm-citation>
</ref>
<ref id="B21">
<label>[21]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yada]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Nagai]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Tanaka]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Origin of the fast relaxation component of water and heavy water revealed by terahertz time-domain attenuated total reflection spectroscopy]]></article-title>
<source><![CDATA[Chemical Physics Letters]]></source>
<year>2008</year>
<volume>464</volume>
<numero>4-6</numero>
<issue>4-6</issue>
<page-range>166-70</page-range></nlm-citation>
</ref>
<ref id="B22">
<label>[22]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Micheli]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electromagnetic characterization and shielding effectiveness of concrete composite reinforced with carbon nanotubes in the mobile phones frequency band]]></article-title>
<source><![CDATA[Materials Science and Engineering: B]]></source>
<year>2014</year>
<volume>188</volume>
<page-range>119-29</page-range></nlm-citation>
</ref>
<ref id="B23">
<label>[23]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pokkuluri]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
</person-group>
<source><![CDATA[Effect of Admixtures, Chlorides, and Moisture on Dielectric Properties of Portland Cement Concrete in the Low Microwave Frequency Range]]></source>
<year>1998</year>
<publisher-loc><![CDATA[Blacksburg ]]></publisher-loc>
<publisher-name><![CDATA[Instituto Politécnico y Universidad Estatal de Virginia]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B24">
<label>[24]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jonscher]]></surname>
<given-names><![CDATA[A. K.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Dielectric relaxation in solids]]></article-title>
<source><![CDATA[Journal of Physics D: Applied Physics]]></source>
<year>1999</year>
<volume>57</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>57-8</page-range></nlm-citation>
</ref>
<ref id="B25">
<label>[25]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gaiduk]]></surname>
<given-names><![CDATA[V. I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Dielectric Relaxation and Dinamics of Polar Molecules]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Nueva York ]]></publisher-loc>
<publisher-name><![CDATA[World Scientific Publishing]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B26">
<label>[26]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jonscher]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The &#8216;Universal&#8217; Dielectric Reponse: Part I]]></article-title>
<source><![CDATA[IEEE Electrical Insulation Magazine]]></source>
<year>1990</year>
<volume>6</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>16-22</page-range></nlm-citation>
</ref>
<ref id="B27">
<label>[27]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jonscher]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The &#8216;Universal&#8217; Dielectric Reponse: Part II]]></article-title>
<source><![CDATA[IEEE Electrical Insulation Magazine]]></source>
<year>1990</year>
<volume>6</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>24-8</page-range></nlm-citation>
</ref>
<ref id="B28">
<label>[28]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jonscher]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[The &#8216;Universal&#8217; Dielectric Reponse: Part III]]></article-title>
<source><![CDATA[IEEE Electrical Insulation Magazine]]></source>
<year>1990</year>
<volume>6</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>19-24</page-range></nlm-citation>
</ref>
<ref id="B29">
<label>[29]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Achedad]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Giménez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Ingeniería de organización: modelos y aplicaciones]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Madrid ]]></publisher-loc>
<publisher-name><![CDATA[Ediciones Díaz de Santos]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B30">
<label>[30]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Render]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
</person-group>
<source><![CDATA[Principios de administración de operaciones]]></source>
<year>2004</year>
<publisher-loc><![CDATA[Ciudad de México ]]></publisher-loc>
<publisher-name><![CDATA[Pearson Educación]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B31">
<label>[31]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chahine]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Ihamouten]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Baltazart]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Villain]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Derobert]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<source><![CDATA[On the variants of Jonscher&#8217;s model for the electromagnetic characterization of concrete]]></source>
<year>2009</year>
<conf-name><![CDATA[ Internarional Conference on Ground Penetrating Radar]]></conf-name>
<conf-loc>Lecce </conf-loc>
</nlm-citation>
</ref>
<ref id="B32">
<label>[32]</label><nlm-citation citation-type="confpro">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Villain]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Ihamouten]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Dérobert]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<source><![CDATA[Use of Frequency Power Law to Link the Results of Two EM Testing Methods for the Characterization of Humid Concretes]]></source>
<year>2011</year>
<conf-name><![CDATA[ International Workshop on Advanced Ground Penetrating Radar (IWAGPR)]]></conf-name>
<conf-loc>Aachen </conf-loc>
</nlm-citation>
</ref>
<ref id="B33">
<label>[33]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ihamouten]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Chahine]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Baltazart]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Villain]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Dérobert]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[On Variants of the Frequency Power Law for the Electromagnetic Charac- terization of Hydraulic Concrete]]></article-title>
<source><![CDATA[IEEE Transactions on Instrumentation and Measurement]]></source>
<year>2011</year>
<volume>60</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>3658-68</page-range></nlm-citation>
</ref>
<ref id="B34">
<label>[34]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hernández]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Teoría de líneas de trasmisión e ingeniería de microondas]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Mexicali ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Baja California]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B35">
<label>[35]</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Colombo]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[Análisis y mediciones de los parámetros de dispersión o Scattering parameters en un cuadripolo o en una red de n puertos (multipolo)]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B36">
<label>[36]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Galao]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<source><![CDATA[Matrices cementicias multifuncionales mediante adición de nanofibras de carbono]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Alicante ]]></publisher-loc>
<publisher-name><![CDATA[Universidad de Alicante]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B37">
<label>[37]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saini]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Choudhary]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Mathur]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhawan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Polyaniline-MWCNT nanocomposites for microwave absorption and EMI shield- ing]]></article-title>
<source><![CDATA[Materials Chemistry and Physics]]></source>
<year>2009</year>
<volume>113</volume>
<numero>2-3</numero>
<issue>2-3</issue>
<page-range>919-26</page-range></nlm-citation>
</ref>
<ref id="B38">
<label>[38]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Choudhary]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhawan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Saini]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Polymer based nanocomposites for electromagnetic interference (EMI) shielding]]></article-title>
<source><![CDATA[EM Shielding. Theory and Development of New Materials]]></source>
<year>2012</year>
<publisher-loc><![CDATA[Kerala ]]></publisher-loc>
<publisher-name><![CDATA[Research Signpost]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B39">
<label>[39]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Choudhary]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Saini]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Mathur]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Designing of epoxy composites reinforced with carbon nanotubes grown carbon fiber fabric for improved electromagnetic interference shielding]]></article-title>
<source><![CDATA[AIP Advances]]></source>
<year>2012</year>
<volume>2</volume>
<numero>2</numero>
<issue>2</issue>
</nlm-citation>
</ref>
<ref id="B40">
<label>[40]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saini]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Choudhary]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Mathur]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhawan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Enhanced microwave absorption behavior of polyaniline-CNT/polystyrene blend in 12.4-18.0GHz range]]></article-title>
<source><![CDATA[Synthetic Metals]]></source>
<year>2011</year>
<volume>161</volume>
<numero>15-16</numero>
<issue>15-16</issue>
<page-range>1522-6</page-range></nlm-citation>
</ref>
<ref id="B41">
<label>[41]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Anoop]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Singh]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Saini]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Khatoon]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhawan]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Synthesis, charge transport studies, and microwave shielding behavior of nanocomposites of polyaniline with Tidoped -Fe2O3]]></article-title>
<source><![CDATA[Journal of Materials Science]]></source>
<year>2011</year>
<volume>47</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>2461-71</page-range></nlm-citation>
</ref>
<ref id="B42">
<label>[42]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electrical conductivity and electromagnetic interference shielding of multiwalled carbon nanotube composites containing Fe catalyst]]></article-title>
<source><![CDATA[Applied Physics Letters]]></source>
<year>2004</year>
<volume>84</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>589-91</page-range></nlm-citation>
</ref>
<ref id="B43">
<label>[43]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Guzmán]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Verificación de efectividad de blindaje electromagnético por teorema se reciprocidad]]></source>
<year>1992</year>
<publisher-loc><![CDATA[Monterrey ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Autónoma de Nuevo León]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B44">
<label>[44]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chung]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Materials for Electromagnetic Interference Shielding]]></article-title>
<source><![CDATA[Journal of Materials Engineering and Performance]]></source>
<year>2000</year>
<volume>9</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>350-4</page-range></nlm-citation>
</ref>
<ref id="B45">
<label>[45]</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Frei]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Meshing Considerations for Linear Static Problems]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B46">
<label>[46]</label><nlm-citation citation-type="">
<collab>COMSOL</collab>
<source><![CDATA[Multiphysics, &#8220;Introduction to COMSOL Multiphysics]]></source>
<year></year>
</nlm-citation>
</ref>
<ref id="B47">
<label>[47]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Dalke]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Holloway]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[McKenna]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Johansson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of Reinforced Concrete Structures on RF Comunications]]></article-title>
<source><![CDATA[IEEE Transactions on Electromagnetic Compatibility]]></source>
<year>2000</year>
<volume>42</volume>
<numero>4</numero>
<issue>4</issue>
<page-range>486-96</page-range></nlm-citation>
</ref>
<ref id="B48">
<label>[48]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Haddad]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Al-Qadi]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Characterization of portland cement concrete using electromagnetic waves over the microwave frequencies]]></article-title>
<source><![CDATA[Cement and Concrete Research]]></source>
<year>1998</year>
<volume>28</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1379-91</page-range></nlm-citation>
</ref>
<ref id="B49">
<label>[49]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rhim]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Buyukozturk]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Electromagnetic Properties of Concrete at Microwave Frequency Range]]></article-title>
<source><![CDATA[Materials Journal]]></source>
<year>1998</year>
<volume>95</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>262-71</page-range></nlm-citation>
</ref>
<ref id="B50">
<label>[50]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Hemming]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Architectural Electromagnetic Shielding Handbook: A Design and Specification Guide]]></source>
<year>2000</year>
<publisher-loc><![CDATA[Nueva York ]]></publisher-loc>
<publisher-name><![CDATA[Willey-IEEE Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B51">
<label>[51]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Celozzi]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Araneo]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Lovat]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Electromagnetic Shielding]]></source>
<year>2008</year>
<publisher-loc><![CDATA[Roma ]]></publisher-loc>
<publisher-name><![CDATA[Wiley-IEEE Press]]></publisher-name>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
