Search Results - ((besteaa OR esto) OR (est OR (((estomas OR bttesta) OR best) OR (tests OR estero)))) point

  1. 41
  2. 42
  3. 43
  4. 44

    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
  5. 45

    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
  6. 46

    Emociones percibidas por los clientes en los encuentros de los servicios para garantizar la lealtad en una relación a largo plazo: Revisión teórica preliminar (Emotions perceived... by Garza, Israel

    Published 2016
    “…It is at this point where research has emphasis. Resumen: La lealtad sigue siendo uno de los principales temas y preocupaciones para los investigadores y practicantes. …”
    Get full text
    Article
  7. 47
  8. 48
  9. 49
  10. 50

    Caracterización de recubrimientos depositados por PVD para sensores de temperatura de frenos de una aeronave. by Montoya Rangel, Marvin

    Published 2018
    “…The coatings were subjected to transversal analysis by SEM, accelerated corrosion tests in saline chamber and electrochemical tests with a potentiostado ACM Instruments Auto DC in H2O, NaCl and H2SO4. …”
    Get full text
    Tesis
  11. 51

    Caracterización de recubrimientos depositados por PVD para sensores de temperatura de frenos de una aeronave. by Montoya Rangel, Marvin

    Published 2018
    “…The coatings were subjected to transversal analysis by SEM, accelerated corrosion tests in saline chamber and electrochemical tests with a potentiostado ACM Instruments Auto DC in H2O, NaCl and H2SO4. …”
    Get full text
    Tesis
  12. 52
  13. 53
  14. 54

    Capacitación laboral en herramientas digitales by Hernández Moreno, Laura Alicia, Hernández Saldaña, Ma. de Lourdes, Tovar Morales, María Teresa

    Published 2022
    “…Los resultados muestran una disminución de capacitación del 24.2% durante el año 2020 respecto al 2019 y esto no es debido a un problema de desempleo originado por la pandemia Covid-19, además se identifica que el 41.5% presentan una capacitación o ninguna al año. …”
    Get full text
    Article
  15. 55
  16. 56
  17. 57
  18. 58

    Aplicaciones didácticas interactivas: Su conocimiento y su uso en estudiantes del 2º semestre de FACPYA by Pérez-Martínez, Katia Site, Mendoza-Vargas, Martha Magdalena, Patiño-Rodríguez, Irasema

    Published 2018
    “…En este estudio se pretende Analizar el grado de conocimiento, así como la frecuencia de uso y la percepción de las aplicaciones didácticas interactivas. …”
    Get full text
    Article
  19. 59
  20. 60

Search Tools: