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    A discussion about the rod position in the splitting tensile tests on hollow concrete blocks by Chávez Gómez, Jorge Humberto, Alvarez Pérez, José, Mesa Lavista, Milena, Fajardo San Miguel, Gerardo, Cavazos de Lira, Diego, González Alcorta, Ricardo

    Published 2023
    “…The main result was that the splitting test over the net area with the rod positioned in the longitudinal direction can overestimate the tensile strength by more than 21% of the one over the gross area.…”
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    Article
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    Hypothesis test for changes in variance using a statistic based in P-values in a time series of normal independent observations. by Armendáriz Hernández, Samuel Uriel

    Published 2015
    “…The present work proposes a Hypothesis Test to detect a shift in the variance of a series of independent normal observations using a statistic based on the p-values of the F distribution. …”
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    Tesis
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    Hypothesis test for changes in variance using a statistic based in P-values in a time series of normal independent observations. by Armendáriz Hernández, Samuel Uriel

    Published 2015
    “…The present work proposes a Hypothesis Test to detect a shift in the variance of a series of independent normal observations using a statistic based on the p-values of the F distribution. …”
    Get full text
    Tesis
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    Analysis of multiple change-points in normally distributed series by Garza Venegas, Jorge Arturo

    Published 2013
    “…It considers case when multiple step changes have occurred assuming that distribution’s parameters as well as change-point positions are unknown. Maximum Likelihood estimators for change-points as well as for parameters were developed considering three cases based on single step change problem: (1) multiple changes only in the mean, (2) multiple changes only in variance and (3) multiple changes in both parameters at the same time. …”
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    Tesis
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    Analysis of multiple change-points in normally distributed series by Garza Venegas, Jorge Arturo

    Published 2013
    “…It considers case when multiple step changes have occurred assuming that distribution’s parameters as well as change-point positions are unknown. Maximum Likelihood estimators for change-points as well as for parameters were developed considering three cases based on single step change problem: (1) multiple changes only in the mean, (2) multiple changes only in variance and (3) multiple changes in both parameters at the same time. …”
    Get full text
    Tesis
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    Influence of the roughening method, joint configuration and adhesive thickness on the shear strength of ferritic stainless steel surfaces joined by methyl methacrylate by Cruz González, Celso E., Mosquera Artamonov, José Daniel, Santillán, Saúl D., Gámez Cuatzin, Hugo

    Published 2018
    “…ABSTRACT: Surface roughening, joint configuration, and adhesive thickness were selected as factors to analyze, by using a 23 design of experiments, the adhesive joint of AISI 430 steel using Methyl Methacrylate. …”
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    Article
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