<?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>0872-1904</journal-id>
<journal-title><![CDATA[Portugaliae Electrochimica Acta]]></journal-title>
<abbrev-journal-title><![CDATA[Port. Electrochim. Acta]]></abbrev-journal-title>
<issn>0872-1904</issn>
<publisher>
<publisher-name><![CDATA[Sociedade Portuguesa de Electroquímica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0872-19042025000600377</article-id>
<article-id pub-id-type="doi">10.4152/pea.2025430604</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Modeling Anaerobic Decomposition: JMP Application with Biomass Data]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abubakar]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Elboughdiri]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chibani]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nneka]]></surname>
<given-names><![CDATA[E. C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yunus]]></surname>
<given-names><![CDATA[M. U.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ghernaout]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Modibbo Adama University Department of Chemical Engineering ]]></institution>
<addr-line><![CDATA[Girei LGA Adamawa State]]></addr-line>
<country>Nigeria</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,University of Maiduguri Department of Chemical Engineering ]]></institution>
<addr-line><![CDATA[ Borno State]]></addr-line>
<country>Nigeria</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,University of Ha&#8217;il Chemical Engineering Department ]]></institution>
<addr-line><![CDATA[Ha&#8217;il ]]></addr-line>
<country>Saudi Arabia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,University of Gabes Chemical Engineering Process Department ]]></institution>
<addr-line><![CDATA[Gabes ]]></addr-line>
<country>Tunisia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Research Center in Industrial Technologies CRTI  ]]></institution>
<addr-line><![CDATA[Algiers ]]></addr-line>
<country>Algeria</country>
</aff>
<aff id="Af6">
<institution><![CDATA[,Chukwuemeka Odumegwu Ojukwu University Faculty of Engineering Department of Chemical Engineering]]></institution>
<addr-line><![CDATA[Igbariam Anambra State]]></addr-line>
<country>Nigeria</country>
</aff>
<aff id="Af7">
<institution><![CDATA[,University of Blida Chemical Engineering Department ]]></institution>
<addr-line><![CDATA[Blida Algeria]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2025</year>
</pub-date>
<volume>43</volume>
<numero>6</numero>
<fpage>377</fpage>
<lpage>394</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0872-19042025000600377&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0872-19042025000600377&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0872-19042025000600377&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Modern predictive modeling techniques, such as regression, NN and decision trees can be used to build better and more useful models. JMP 17.2.0 was used in this study to develop a fitting model for microbial growth observed data from chicken manure and banana peels labelled as Sample A, and a single chicken manure substrate, identified as Sample B. Statistical metrics, including COD (R2), RASE, MAD, negative log-likelihood and SSE were used to determine best predictions for Ct (X) from biomass of 22 and 24 samples (A and B) on SC (S) and SGR of microorganisms (&#956;). Along with estimated Monod parameters, TanH function SAS codes for 3 declared hidden layers, also demonstrated by surface plots, portrayed Sample B predicted model as the best one, even though the 2 samples datasets R2 values for training (A: 0.9887916 and B: 1.0000) and validation (A: 0.9787637 and B: 0.9999999) pointed to a good fit. According to findings, optimal conditions for datasets were: A- biomass = 899868717 mg/L and SC = 4.62 x 109 mg/L, correspondent to high µ (0.010201 h-1); and B- biomass = 15351147 mg/L and SC = 9.2322 x 109 mg/L, consistent with µ of 0.007316 h-1. RMSE, which is the standard method of choice for evaluating the accuracy of predictive models, including those based on NN, should be activated in future studies. This research is both timely and relevant in the pursuit of sustainable waste management and renewable energy generation.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[ANN]]></kwd>
<kwd lng="en"><![CDATA[JMP]]></kwd>
<kwd lng="en"><![CDATA[Monod]]></kwd>
<kwd lng="en"><![CDATA[SAS code]]></kwd>
<kwd lng="en"><![CDATA[SGR]]></kwd>
<kwd lng="en"><![CDATA[SC]]></kwd>
<kwd lng="en"><![CDATA[TanH function]]></kwd>
</kwd-group>
</article-meta>
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