Resultados de búsqueda - ((estoe OR estas) OR ((test OR (estos OR testaales)) OR (tests OR (esta OR tostado)))) point*

  1. 81
  2. 82
  3. 83

    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
  4. 84

    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
  5. 85

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

    Publicado 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. …”
    Enlace del recurso
    Artículo
  6. 86
  7. 87
  8. 88

    Social network externalities and price dispersion in online markets por Ayala Gaytán, Edgardo Arturo

    Publicado 2009
    “…Consumers cannot physically touch or examine the products at the point of purchase. As such, online markets involve an adoption process based on the interaction of consumers’ experiences in the form of references, recommendations, word of mouth, etc. …”
    Enlace del recurso
    Artículo
  9. 89
  10. 90

    Análisis de las motivaciones, factores de éxito y obstáculos al espíritu empresarial: estudio comparativo entre México, EEUU y Turquía (Analysis of motivations, factors of success... por Partida Puente, Abel, Carrera Sánchez, María Margarita, Villarreal Villarreal, Luis Alberto

    Publicado 2012
    “…These authors proposed to considerate the entrepreneur process as functions, activities and actions associated with the perception of opportunity and the creations of the organization to take advantage of. As beginning point, Gartner (1985) proposed to considerate the essential elements of the entrepreneur study: a) the environment b) the characteristics of the individual, c) the process and d) the Organization created. …”
    Enlace del recurso
    Artículo
  11. 91

    El valor de la cartera de clientes de empresas de telecomunicaciones en México (The value of customer portfolio for telecommunication companies in Mexico) por Saldaña, J., Palomo, M.

    Publicado 2006
    “…Nevertheless, only few companies have bothered to evaluate if their desirable individual customers are, from the risk stand point, are desirable collective customers based on the customers´ value change. …”
    Enlace del recurso
    Artículo
  12. 92
  13. 93

    Evaluación de carbono en ecosistemas terrestres en Tizimín, Yucatán, México por García García, Dora Alicia

    Publicado 2019
    “…The sampling was carried out according to the cardinal points (N, S, E, W). The twigs were separated to place them in paper bags with a capacity of 3 kg, identify them with a code and they will be processed in the weight of each of them, 3 subsamples of each tree will be obtained the answers of the Carbon Laboratories, Technology Laboratory of the Wood and Laboratory of Chemistry of the Faculty of Forestry Sciences of the Autonomous University of Nuevo Leon, where the samples are at a temperature of 75 ° C in a digital drying oven brand Riossa model HCF-102-D for 72 hours . …”
    Enlace del recurso
    Tesis
  14. 94

    Evaluación de carbono en ecosistemas terrestres en Tizimín, Yucatán, México por García García, Dora Alicia

    Publicado 2019
    “…The sampling was carried out according to the cardinal points (N, S, E, W). The twigs were separated to place them in paper bags with a capacity of 3 kg, identify them with a code and they will be processed in the weight of each of them, 3 subsamples of each tree will be obtained the answers of the Carbon Laboratories, Technology Laboratory of the Wood and Laboratory of Chemistry of the Faculty of Forestry Sciences of the Autonomous University of Nuevo Leon, where the samples are at a temperature of 75 ° C in a digital drying oven brand Riossa model HCF-102-D for 72 hours . …”
    Enlace del recurso
    Tesis
  15. 95
  16. 96

    Development and Evaluation of An In-House Lumbar Puncture Simulator for First-Year Resident Lumbar Puncture Procedure Learning por Muñoz Leija, David, Díaz González Colmenero, Fernando, Ramiréz Mendoza, Diego A, López Cabrera, Norma Guadalupe, Llanes Garza, Hilda Alicia, Palacios Ríos, Dionicio, Negreros Osuna, Adrian Antonio

    Publicado 2024
    “…While there were no apparent differences in median self-confidence scores between the groups at any time point, the experimental group had a significant increase in their self-confidence for performing an unassisted LP, with a median score of 1/5 (1 2.3) at baseline and 5/5 (4.8 - 5) after six months (p = 0.006). …”
    Enlace del recurso
    Artículo
  17. 97
  18. 98

    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
  19. 99

    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
  20. 100

    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

Herramientas de búsqueda: