Search Results - ((estas OR esto) OR ((test OR esteeve) OR (best OR (estomago OR (estas OR gestor))))) point*

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

    Published 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. …”
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    Tesis
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    Thermomechanical Performance of fr-4 Laminates in the Manufacturing Process of Printed Circuit Boards. by Rodríguez Vázquez, Carlos Alfonso

    Published 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. …”
    Get full text
    Tesis
  8. 208

    DISEÑO Y VALIDACIÓN DE UNA ESCALA DE APRENDIZAJE SOBRE SALUD COLECTIVA EN ENFERMERÍA by García Piña, Eunice Victoria

    Published 2017
    “…Results: An instrument of 40 items was obtained, which considers five dimensions of learning: genuine (8 to 40 points), meaningful, and reflective (7 to 35 points), experimental -multidimensional (9 to 45 points), self-employed (6 to 30points) and set (10 to 50 points), derivative in a total a score of 40 to 200 points. …”
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    Article
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    Expectativas de los estudiantes de primer ingreso en la Maestria en Contaduría: Caso FACPYA (Expectations of first year students in the master of accounting: Case FACPYA) by Hernández Campos, Alfonso, Tamez Garza, Silverio, Leal Martínez, José Luis, Garza Coronado, Jessica Lizzet

    Published 2013
    “…The results indicate, among other things, that the two main areas of interest for future work to students are the Finance and Taxation, and that their interest is directed to work in the private sector in a corporate or large firm, practically leaving out the public sector. Experton points out that the learning process is easier to students through laboratory practical situations followed by lectures given by the professor, and videos of case studies. …”
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    Article
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