Resultados de búsqueda - ((((westa OR beste) OR rtestar) OR ((este OR tested) OR betaia)) OR (est OR estae)) point*

  1. 281

    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. 282

    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
  3. 283
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  5. 285

    Bioestratigrafía y microfacies de la formación cuesta del cura (cretácico inferior) en la Cañada Guadalupe del municipio de Iturbide, Nuevo León, México. por Coronado Díaz, Miroslava

    Publicado 2018
    “…The scarcity of information available to the focal points of this research is based on more complex organisms such as ammonoids and other macroscopic organisms, which is why the lack of studies based on foraminifera has not allowed establish more concrete biostratigraphic sequences. …”
    Enlace del recurso
    Tesis
  6. 286

    Bioestratigrafía y microfacies de la formación cuesta del cura (cretácico inferior) en la Cañada Guadalupe del municipio de Iturbide, Nuevo León, México. por Coronado Díaz, Miroslava

    Publicado 2018
    “…The scarcity of information available to the focal points of this research is based on more complex organisms such as ammonoids and other macroscopic organisms, which is why the lack of studies based on foraminifera has not allowed establish more concrete biostratigraphic sequences. …”
    Enlace del recurso
    Tesis
  7. 287
  8. 288

    CALIDAD BACTERIOLOGICA DE ENSALADAS DE ZANAHORIA RALLADA Y EFICACIA DE TRATAMIENTOS PREVIOS A SU CONSUMO por Gentili Alejandro, Raúl, Marzocca, María Alejandra, Oriani, Alejandra Soledad, Baldini, Mónica Diana

    Publicado 2017
    “…Discussion: It should be pointed out the importance of the microbiological quality of raw material, since the 35% of the samples do not reach the requirements even applying the treatment with hypochlorite. …”
    Enlace del recurso
    Artículo
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  12. 292

    Nueva gestión pública y gobernanza: desafíos en su implementación = New public management and governance: challenges in implementation por Gómez Díaz de León, Carlos

    Publicado 2013
    “…As elements of change management in the form of highlights strategic management and quality management with participatory component that characterizes the new governance model. Finally we point out some of the challenges that the model itself mean for society and civil society organizations.…”
    Enlace del recurso
    Artículo
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