Resultados de búsqueda - (((estoa OR ((estoan OR (estimar OR texto)) OR waste)) OR estos) OR (est OR tested)) point*

  1. 161

    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
  2. 162

    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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    Síndrome de Burnout en instructores de inglés en escuelas primarias públicas. por Nava Gutiérrez, Juan Diego

    Publicado 2016
    “…In order to collect data, it was considered to use the Burnout Questionnaire for Teachers Revised, with 66 items in 5 points Likert scale, to measure emotional exhaustion, depersonalization and lack of personal accomplishment, with a total α = 0.92 in the original study. …”
    Enlace del recurso
    Tesis
  6. 166

    Síndrome de Burnout en instructores de inglés en escuelas primarias públicas. por Nava Gutiérrez, Juan Diego

    Publicado 2016
    “…In order to collect data, it was considered to use the Burnout Questionnaire for Teachers Revised, with 66 items in 5 points Likert scale, to measure emotional exhaustion, depersonalization and lack of personal accomplishment, with a total α = 0.92 in the original study. …”
    Enlace del recurso
    Tesis
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    Aproximación al ciberactivismo feminista en Latinoamérica en el siglo XXI por Pila Guzmán, Paola Viviana, Estrada Esparza, Olga Nelly

    Publicado 2023
    “…Based on a first theoretical approach to cyberactivism, the differences between the concepts of feminist cyberactivism and cyberfeminism were analyzed. From this point, the historical connections were located between this digital and network activism and the contemporary feminist movement. …”
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    Artículo

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