Resultados de búsqueda - ((este OR gestaa) OR ((test OR (estaese OR esteres)) OR (tesis OR (esto OR titanato)))) point*

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    Aspectos políticos de la dependencia financiera en los municipios mexicanos = Political aspects of financial dependence in mexican municipalities Political Aspects of Financial De... por Ibarra Salazar, Jorge Aurelio, González García, Héctor, Sotres Cervantes, Lida

    Publicado 2013
    “…Indeed, previous studies in the field of political economy point to the effects of political environment and fiscal institutions -such as public spending and debt- on national and sub-national governments. …”
    Enlace del recurso
    Artículo
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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
  9. 249

    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. por Rodríguez Vázquez, Carlos Alfonso

    Publicado 2016
    “…In 2006 the Restriction of Hazardous Substances (RoHS) prohibited the use of lead (Pb) in solder paste, which has a melting temperature around 180oC, whereas lead-free solder pastes have a melting point around 230oC, 30oC-40oC higher than Pb solder paste, this has generated PCB thermo mechanical problems due to the temperature increase at which the material is exposed. …”
    Enlace del recurso
    Tesis
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    EVALUACIÓN DE RIESGO A LA SALUD EN LA COMUNIDAD DE LOMA BLANCA (DISTRITO DE RIEGO 009) VALLE DE JUAREZ (MEXICO), POR EXPOSICIÓN A AGUAS RESIDUALES NO TRATADAS por Garza Almanza, Victoriano, Fernández Salas, Ildefonso, Badii, Mohammad, Flores Suárez, Adriana, Hauad Marroquín, Leticia, Villarreal Rivera, Leticia

    Publicado 2001
    “…The result of the evaluation points out that the category of risk is high. Theconclusion is based on the analysis of data on the environment, characteristic of housing, habits ofconsumption of water and vegetables, perception of the risk on the part of the community, andmorbidity levels.Palabras calve: Loma Blanca, Valle de Juarez, valoración del riesgo, aguas residuales, risk value, residual waters.…”
    Enlace del recurso
    Artículo
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    Artificial neural network modeling of phenol adsorption onto barley husks activated carbon in an airlift reactor por Loredo Cancino, Margarita

    Publicado 2013
    “…Purpose and method of the study: The production of activated carbon from barley husks (BH) by chemical activation with zinc chloride was optimized by using a 23 factorial design with replicates at the central point, followed by a central composite design with two responses (the yield and iodine number) and three factors (the activation temperature, activation time, and impregnation ratio). …”
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    Tesis
  19. 259

    Artificial neural network modeling of phenol adsorption onto barley husks activated carbon in an airlift reactor por Loredo Cancino, Margarita

    Publicado 2013
    “…Purpose and method of the study: The production of activated carbon from barley husks (BH) by chemical activation with zinc chloride was optimized by using a 23 factorial design with replicates at the central point, followed by a central composite design with two responses (the yield and iodine number) and three factors (the activation temperature, activation time, and impregnation ratio). …”
    Enlace del recurso
    Tesis
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    Estructura de edades, densidad y regeneración de Pinus hartwegii en un gradiente de elevación. por Cortés Cabrera, Héctor Enrique

    Publicado 2018
    “…Regeneration was sampled in plots, while adult individuals were sampled by the point centered quarter method. Density of adult individuals and regeneration were higher at lower elevations, while individuals with fire scars showed similar density across elevations. …”
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    Tesis

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