<?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>2007-4018</journal-id>
<journal-title><![CDATA[Revista Chapingo serie ciencias forestales y del ambiente]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Chapingo ser. cienc. for. ambient]]></abbrev-journal-title>
<issn>2007-4018</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma Chapingo, Coordinación de Revistas Institucionales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-40182019000300291</article-id>
<article-id pub-id-type="doi">10.5154/r.rchscfa.2018.01.007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Study of the production in a custom-cut sawmill through the use of discrete event simulation and experimental design]]></article-title>
<article-title xml:lang="es"><![CDATA[Estudio de la producción en un aserradero de corte cualitativo a través del uso de simulación de eventos discretos y diseño de experimentos]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vergara-González]]></surname>
<given-names><![CDATA[Francisco P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Ríos]]></surname>
<given-names><![CDATA[Patricio E.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojas-Espinoza]]></surname>
<given-names><![CDATA[Gerson]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montero-Nahuelcura]]></surname>
<given-names><![CDATA[Claudio A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Bío-Bío Facultad de Ingeniería Departamento de Ingeniería en Maderas]]></institution>
<addr-line><![CDATA[Concepción Región del Biobío]]></addr-line>
<country>Chile</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>25</volume>
<numero>3</numero>
<fpage>291</fpage>
<lpage>304</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-40182019000300291&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-40182019000300291&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-40182019000300291&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract  Introduction:  When sawing logs without diameter sorting, the cutting program generates decisions and routes depending on the log&#8217;s appearance and machine load.  Objective: To optimize the production flow of a custom-cut Pinus radiata D. Don sawmill, through detection and analysis of critical machines, using discrete event simulation and experimental design.  Materials and methods:  Two simulation models were developed for sawing logs with lengths of 2.5 and 5.0 m, and diameters between 34 and 44 cm to produce sawnwood with a thickness of 5/4" with variable width. The number of logs processed per shift was the response variable of the model. Heavily-used machines and transports with long queues were candidates for critical machines. The impact on production was determined by means of experimental design, where the factors assessed were: (A) delivery from bandsaw carriage 1 to band saw 3, (B) increased debarker capacity, (C) failures eliminated from bandsaw 1 and 2, and (D) direct delivery from bandsaw 2 to edger 2.  Results and discussion: Modifications to the production flow were proposed because factors B, C and D significantly increased (P = 0.1) the production level (logs per shift); the increases over the sawmill&#8217;s initial condition were 13 and 18 % for lengths of 2.5 and 5.0 m, respectively.  Conclusion:  Simulation and experimental design can be applied in small and medium-sized sawmills to improve production when processing logs without diameter sorting.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen  Introducción:  Al aserrar trozos sin clasificación, el programa de corte genera decisiones y rutas dependiendo de la apariencia de la pieza y carga de máquinas.  Objetivo: Optimizar el flujo de producción de un aserradero de corte cualitativo de Pinus radiata D. Don, mediante la detección y análisis de máquinas críticas, utilizando la simulación de eventos discretos y diseño de experimentos.  Materiales y métodos:  Se desarrollaron dos modelos de simulación para el aserrío de trozos con longitudes de 2.5 y 5.0 m, diámetro entre 34 y 44 cm y espesor de 5/4&#8221; con ancho variable. La cantidad de trozos procesados por turno fue la variable respuesta del modelo. Las máquinas de amplio uso y los transportes con largas colas fueron candidatos a máquinas críticas. El impacto sobre la producción se determinó mediante un diseño de experimentos, donde los factores evaluados fueron: (A) entrega desde el carro sierra cinta 1 a sierra cinta 3, (B) aumento de capacidad del descortezador, (C) fallas eliminadas de las sierras cintas carro 1 y 2, y (D) entrega directa de sierra cinta 2 a canteadora 2.  Resultados y discusión: Se propusieron modificaciones al flujo de producción debido a que los factores B, C y D aumentaron significativamente (P = 0.1) el nivel de producción (trozos por turno); los incrementos con respecto a la condición inicial del aserradero fueron 13 y 18 % para las longitudes de 2.5 y 5.0 m, respectivamente.  Conclusión:  La simulación y diseño de experimentos pueden aplicarse en aserraderos pequeños y medianos, para mejorar la producción cuando se procesan trozos sin clasificación.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Pinus radiata]]></kwd>
<kwd lng="en"><![CDATA[production flow]]></kwd>
<kwd lng="en"><![CDATA[critical machine]]></kwd>
<kwd lng="en"><![CDATA[simulation model]]></kwd>
<kwd lng="en"><![CDATA[log length]]></kwd>
<kwd lng="es"><![CDATA[Pinus radiata]]></kwd>
<kwd lng="es"><![CDATA[flujo de producción]]></kwd>
<kwd lng="es"><![CDATA[máquina crítica]]></kwd>
<kwd lng="es"><![CDATA[modelo de simulación]]></kwd>
<kwd lng="es"><![CDATA[longitud de trozo]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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