Resultados de búsqueda - ((niza OR eniza) OR (tica OR ((optic OR (eptica OR (ppoptico OR soptica))) OR ethic)))*

  1. 181

    Diseño de un mecanismo para un perfil alar con extradós variable. por Ramírez Loaiza, Luis Camilo

    Publicado 2017
    “…La síntesis fue realizada para obtener un mecanismo de un grado de libertad, para lo cual fue necesario encontrar los rotopolos de los eslabones fijos al bastidor y seleccionar los tipos de cadenas cinem·ticas o grupos Assur para encontrar la configuración estructural de los mecanismos. …”
    Enlace del recurso
    Tesis
  2. 182

    Diseño de un mecanismo para un perfil alar con extradós variable. por Ramírez Loaiza, Luis Camilo

    Publicado 2017
    “…La síntesis fue realizada para obtener un mecanismo de un grado de libertad, para lo cual fue necesario encontrar los rotopolos de los eslabones fijos al bastidor y seleccionar los tipos de cadenas cinem·ticas o grupos Assur para encontrar la configuración estructural de los mecanismos. …”
    Enlace del recurso
    Tesis
  3. 183

    Morphological and Genetic Variation in Mexican Wild Populations ofTamarixia radiata(Hymenoptera: Eulophidae) por Peña Carrillo, Kenzy Ivveth, González Hernández, Alejandro, López Arroyo, J. Isabel, Mercado Hernández, Roberto, Favela Lara, Susana

    Publicado 2015
    “…Different characterization techniques were employ for analyzing the samples as: differential scanning calorimeter (DSC), scanning electron microscopy (SEM), optical microscopy (OM) and a non-commercial apparatus developed to apply an external traction stress in helical actuators during thermal cycles.…”
    Enlace del recurso
    Artículo
  4. 184

    Thermomechanical Analysis on Ti-Ni Shape Memory Helical Springs Under Cyclic Tensile Loads por Oliveira, Carlos Augusto do Nascimento, González, Cezar Henrique, Olimpio Filho, Oscar, Silva, Niédson José da, Guimarães, Pablo Batista, Nuñez Mendoza, Esaú, López Cuéllar, Enrique Manuel

    Publicado 2015
    “…Different characterization techniques were employ for analyzing the samples as: differential scanning calorimeter (DSC), scanning electron microscopy (SEM), optical microscopy (OM) and a non-commercial apparatus developed to apply an external traction stress in helical actuators during thermal cycles.…”
    Enlace del recurso
    Artículo
  5. 185

    Development of a Theoretical Model That Predicts Optothermal Energy Conversion of Gold Metallic Nanoparticles por Rafiei, Nahid, Alishah Aratboni, Hossein, Khosravi Khorashad, Larousse, Alemzadeh, Abbas, Shaji, Sadasivan, Morones Ramírez, José Rubén

    Publicado 2020
    “…This feature has been used in many applications where metallic NPs get coupled with thermally responsive systems to trigger an optical response. In this study, we synthesized AuNPs that are spherical in shape with an average diameter of 20.07 nm. …”
    Enlace del recurso
    Artículo
  6. 186

    Doping of TiO2 Using Metal Waste (Door Key) to Improve Its Photocatalytic Efficiency in the Mineralization of an Emerging Contaminant in an Aqueous Environment por Juárez Cortázar, Dany Edgar, Torres Torres, José Gilberto, Hernández Ramírez, Aracely, Arévalo Pérez, Juan Carlos, Cervantes Uribe, Adrián, Godavarthi, Srinivas, Espinosa de los Monteros, Alejandra Elvira, Silahua Pavón, Adib Abiu, Cordero García, Adrián

    Publicado 2022
    “…The characterization of the materials was carried out using X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflectance spectroscopy (DRS), scanning electron microscopy–energy-dispersive X-ray analysis (SEM-EDX) methods X-ray photoelectron spectroscopy (XPS), and inductively coupled plasma optical emission spectroscopy (ICP-OES). The results obtained indicate that Cu+/Cu2+ and Zn2+ ions coexist in the support, which modifies the physicochemical properties of TiO2 and improves its photocatalytic efficiency. …”
    Enlace del recurso
    Artículo
  7. 187

    Transverse Load and Temperature Sensing Using Multiplexed Long-Period Fiber Gratings por Torres Gómez, Ismael, Martínez Ríos, Alejandro, Anzueto Sánchez, Gilberto, Ceballos Herrera, Daniel E., Salceda Delgado, Guillermo

    Publicado 2020
    “…The coarse wavelength-division multiplexing (CWDM) of long-period fiber gratings is an attractive alternative technique in optical fiber distributed sensing applications.…”
    Enlace del recurso
    Artículo
  8. 188
  9. 189
  10. 190

    Goethite–titania composite: disinfection mechanism under UV and visible light por Lara Rico, Rosalina, Múzquiz Ramos, Elia M., López Badillo, Claudia M., García Pérez, Ulises Matías, Cruz Ortiz, Brenda R.

    Publicado 2019
    “…The structural, morphological and optical properties of as-synthesized composites were characterized by X-ray powder diffraction, scanning electron microscopy and UV-Vis diffuse reflectance spectroscopy, respectively. a-FeOOH–TiO2 composites and TiO2-P25, as reference, were evaluated as photocatalysts for the disinfection of Escherichia coli under UV or visible light in a stirred tank reactor. a-FeOOH–TiO2 exhibited better photocatalytic activity in the visible region than TiO2-P25. …”
    Enlace del recurso
    Artículo
  11. 191

    Estudio del comportamiento de materiales cerámicos expuestos a un campo de microondas por Gómez de la Fuente, Idalia, Aguilar, Juan

    Publicado 2005
    “…The samples obtained were analyzed by means of X-ray diffraction, and observed by optical and scanning electron microscopy. CaZrO3 was found in all the samples. …”
    Enlace del recurso
    Artículo
  12. 192

    Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers por Ornelas Acosta, Raúl Ernesto

    Publicado 2015
    “…One of these alternatives is copper antimony sulfide(CuSbS2) which contains abundant and non-toxic elements which has a direct optical band gap of 1.5 eV, the optimum value for an absorber material in solar cells, suggesting this material as one among the new photovoltaic materials. …”
    Enlace del recurso
    Tesis
  13. 193

    Thin films of Cu, In and Sb chalcogenides as photovoltaic absorbers por Ornelas Acosta, Raúl Ernesto

    Publicado 2015
    “…One of these alternatives is copper antimony sulfide(CuSbS2) which contains abundant and non-toxic elements which has a direct optical band gap of 1.5 eV, the optimum value for an absorber material in solar cells, suggesting this material as one among the new photovoltaic materials. …”
    Enlace del recurso
    Tesis
  14. 194
  15. 195
  16. 196
  17. 197
  18. 198

    Estrategia de responsabilidad social empresarial de una terminal portuaria en Barranquilla, Colombia. Corporate social responsibility strategy of a harbour terminal in Barranqu... por Lechuga Cardozo, Jorge Isaac

    Publicado 2019
    “…After the data analysis, it was found that the company enjoys of an ethical framework based on corporate values and principles aligned to its economic activity, developing social actions from four pillars that respond to the social, economic and environmental dimensions, nevertheless, it is required to reinvigorate the interactive media and mass media instrumentation. …”
    Enlace del recurso
    Artículo
  19. 199

    Interacción de estudiantes de nivel superior con las redes sociales por García González, Janet, Granat Ramos, María Mirna, Sepúlveda García, Lucinda

    Publicado 2016
    “…Abstract The new information technologies directly involved interpersonal relationships as well as the production of meaning, cultural identification, ethics and the entire sphere of human life. This research describes and examines the interaction of higher education students with social networks, as well as the effects caused by these platforms, generating an overview of the current social context. transversal descriptive study with quantitative methodology. …”
    Enlace del recurso
    Sección de libro.
  20. 200

    Frequency–Time Domain Analysis Based on Electrochemical Noise of Dual-Phase (DP) and Ferrite–Bainite (FB) Steels in Chloride Solutions for Automotive Applications por Almeraya Calderón, Facundo, Montoya Rangel, Marvin, Nieves Mendoza, Demetrio, Jáquez Muñoz, Jesús Manuel, Baltazar Zamora, Miguel Ángel, Landa Ruiz, Laura, Lara Banda, María del Refugio, Maldonado Bandala, Erick, Estupiñan López, Francisco H., Gaona Tiburcio, Citlalli

    Publicado 2024
    “…At room temperature, the steels were immersed in NaCl, CaCl2, and MgCl2 solutions and were studied by frequency–time domain analysis using wavelet decomposition, Hilbert–Huang analysis, and recurrence plots (RPs) related to the corrosion process and noise impedance (Zn). Optical microscopy (OM) was used to observe the microstructure of the tested samples. …”
    Enlace del recurso
    Artículo

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