Resultados de búsqueda - ((((((usumy OR sum) OR (same OR assume)) OR usury) OR sumaay) OR usumaa) OR sumo)*

  1. 201

    Comparative study of CO2 photoreduction using different conformations of CuO photocatalyst: Powder, coating on mesh and thin film por Avila López, Manuel Alejandro, Gavrielides, Stelios, Luo, XiaoJiao, Ojoajogwu, Abah Ezra, Tan, Jeannie Z.Y., Luévano Hipólito, Edith, Torres Martínez, Leticia M., Maroto Valer, M. Mercedes

    Publicado 2021
    “…Hence, in this work different conformations of CuO-based photocatalyst, namely powder (i.e., synthesized using precipitation, sonochemical and hydrothermal-microwave treatment), coating on glass fiber mesh, and thin film, were tested using the same photoreactor and experimental conditions. All CuO photocatalysts exhibited 100 % product selectivity towards CH4 over CO and the CuO coating on the glass fiber mesh exhibited the highest production of CH4 (56.3 μmol gcat − 1h− 1). …”
    Enlace del recurso
    Artículo
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  4. 204

    Open-Circuit Voltage (VOC) Enhancement in TiO2-Based DSSCs: Incorporation of ZnO Nanoflowers and Au Nanoparticles por Borbón Rojas, Susana, Lugo Loredo, Shadai, Pourjafari Nokandeh, Dena, Pineda Aguilar, Nayely, Oskam, Gerko, López, Israel

    Publicado 2020
    “…Detailed analysis with electrochemical impedance spectroscopy and intensity-modulated photovoltage and photocurrent spectroscopies (IMVS and IMPS) reveal that the main reason for the increase of VOC is related to the shift of the band edges upon coupling TiO2 with ZnO nanoflowers, even though the electron lifetime at the same charge density actually decreases. These results show the intricate interplay between band edge shift, recombination kinetics, and DSSC performance and illustrate that a higher voltage DSSC can be fabricated by modification of the photoanode materials.…”
    Enlace del recurso
    Artículo
  5. 205

    Co-Teaching: a successful factor on teacher training through collaborative practices and professional advice. por Cortez Soto, Ana Berenice, Serrato Salazar, Dan Isaí

    Publicado 2018
    “…This study is based on the co-teaching model that is defined as the joint work of two teachers with the same group of students sharing planning, organization, delivery as well as physical space (Bacharach, Heck & Dahlberg, 2010). …”
    Enlace del recurso
    Artículo
  6. 206

    Desarrollo de competencias generales y específicas, mediante el uso de las tecnologías de la información, en la formación de ingenieros por Martínez Alonso, Gabriel Fernando, Monsiváis Pérez, Andrés, Garza Garza, Juan Ángel

    Publicado 2011
    “…It is concluded that the activities with IT permit not alone the development of specific competences, but besides they promote the development of above-mentioned general competences to the own use of the same, which is an important factor at the moment of to select them for the classes…”
    Enlace del recurso
    Artículo
  7. 207

    On the structure and properties of silver nanoparticles por Gracia Pinilla, Miguel Ángel, Pérez Tijerina, Eduardo, Antúnez García, Joel, Fernández Navarro, Carlos Javier, Tlahuice Flores, Alfredo, Mejía Rosales, Sergio, Montejano Carrizales, Juan Martín, Yacamán, Miguel José

    Publicado 2008
    “…We performed a set of Molecular Dynamics (MD) calculations using the Embedded Atom potential model to simulate the dynamics of particles with different shapes, obtaining that, at sizes close to that of the particles produced experimentally, the tetrahedra may be as energetically stable as cuboctahedra of roughly the same size, and that their melting point is below but close to that of the bulk. …”
    Enlace del recurso
    Artículo
  8. 208

    Sistema de guía, navegación y retroalimentación para un misil tierra-aire a través de sistemas híbridos por Limón Díaz, Pedro Antonio

    Publicado 2016
    “…This module is composed by an accelerometer, gyroscope, magnetometer, barometer, temperature sensor (that are co-integrated in the same board) and an IR camera. 2) Flight computer module. …”
    Enlace del recurso
    Tesis
  9. 209

    Cálculo de asentamientos diferenciales en la interfase suelo-roca, del edificio de ingeniería petrolera de la Facultad de Ciencias de la Tierra, Linares, Nuevo León por Ramírez Ligonio, Manuel Jesús

    Publicado 2017
    “…The analysis was developed by the Finite Element method using the software called ABAQUS®, where the Soil-Rock phases can be simulated with elastics and geometries properties, and the same time the applied forces can be modified in the way that is needed. …”
    Enlace del recurso
    Tesis
  10. 210

    Evaluación de las poblaciones de las principales presas de jaguar y puma en las serranías del municipio de Nácori Chico, Sonora, México por De Jesús Avendaño, José

    Publicado 2007
    “…We obtained differences between dry season and wet seasons in the 2003, but no in the 2004 for the same seasons. We obtaining differences in the densities for the 2003 and 2004. …”
    Enlace del recurso
    Tesis
  11. 211
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  13. 213

    Comparative analysis of soybean meal effects in commercial strains of rainbow trout Oncorhynchus mykiss por Tasia, Tsung-Yu, Hernández Hernández, Hector Luis, Overturf, Keneeth E., Powell, Madison S.

    Publicado 2022
    “…Expression varied between CXA and CXS fish despite being from the same strain indicating size at age affects gene expression and care should be taken when comparing different strains with different growth rates. …”
    Enlace del recurso
    Artículo
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    Estudio del comportamiento del cuerpo y aletas plegables de un cohete, para un sistema de lanza cohetes múltiple por Pimentel Villasmil, Pablo Emilio

    Publicado 2014
    “…On the other hand fins for stability control of this design are unique and specific for the same, as for the concept design, the rocket must exit tube, so the fins must be able to be folded or folded down, and when shooting and pipe outlet should be opened to their flight position. …”
    Enlace del recurso
    Tesis

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