Resultados de búsqueda - ((estos OR este) OR (est OR (((estoerases OR restaos) OR testas) OR (tests OR btestaa)))) point

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    Desarrollo histórico de la educación a distancia (Historical development of distance education) por Jardines Garza, Francisco Javier

    Publicado 2009
    “…In this paper we describe the historical development in distance education from a general point of view. We resume the historical evolution of internet, and its relationship with important social issues as communication, defense, and education. …”
    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). …”
    Enlace del recurso
    Tesis
  9. 89

    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
  10. 90

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

    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
    info:eu-repo/semantics/doctoralThesis
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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. …”
    Enlace del recurso
    Tesis
  20. 100

    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. …”
    Enlace del recurso
    Tesis

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