Browsing División de Nanociencias y Materiales by Title
Now showing items 149-168 of 566
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Enhanced photocatalytic performance of zinc oxide nanostructures via photoirradiation hybridisation with graphene oxide for the degradation of triclosan under visible light: Synthesis, characterisation and mechanistic study
(Elsevier, 2018)"Modification of ZnO nanoparticles with graphene oxide (GO) was carried out, and the obtained hybrid photocatalyst was used for the photodegradation of triclosan (TCS), which is an endocrine disrupting compound. Three ... -
Enhanced refrigerant capacity and magnetic entropy flattening using a two-amorphous FeZrB(Cu) composite
(2011-12)"The temperature dependence of the isothermal magnetic entropy change, Delta S-M, and the magnetic field dependence of the refrigerant capacity, RC, have been investigated in a composite system xA + (1 - x) B, based on ... -
Enhanced refrigerant capacity in Gd-Al-Co microwires with a biphase nanocrystalline/amorphous structure
(2016-02)"A class of biphase nanocrystalline/amorphous Gd(50+5x)Al(30-5x)Co20 (x = 0, 1, 2) microwires fabricated directly by melt-extraction is reported. High resolution transmission electron microscopy and Fourier function transform ... -
Enhanced refrigerant capacity in two-phase nanocrystalline/amorphous NdPrFe17 melt-spun ribbons
(2014-05)"he magnetocaloric properties of NdPrFe17 melt-spun ribbons composed of nanocrystallites surrounded by an intergranular amorphous phase have been studied. The nanocomposite shows two successive second-order magnetic phase ... -
Enhanced thermal conductivity of carbon fiber/phenolic resin composites by the introduction of carbon nanotubes
(2007-02)"The authors report a significant enhancement in the thermal conductivity of a conventional carbon fiber/phenolic resin composite system when adding highly crystalline multiwalled carbon nanotubes. They demonstrate that ... -
Enhanced tunneling through nonstationary barriers
(2007-11)"Quantum tunneling through a nonstationary barrier is studied analytically and by a direct numerical solution of Schrödinger equation. Both methods are in agreement and say that the main features of the phenomenon can be ... -
Enhancement of entanglement using a tight-binding hamiltonian.
(2006)"Debido a la disminución del tamaño en los procesos de fabricación de microchips de computadora, se esta llegando a limites físicos donde efectos cuánticos pueden interferir en el desempeño de tales dispositivos. Por otra ... -
Enhancement of NOx photo-oxidation by Fe-doped TiO2 nanoparticles
(NRF, 2019)"Microwave hydrothermal-assisted sol-gel method was employed to synthesize the Fe doped TiO2 photocatalyst. Themorphological analysis suggests anatase phase nanoparticles of ~20 nm with an SBET area of 283.99 m2/g. The ... -
Enlarged sheet of ZnS(en)0.5 hybrid semiconductors with photocatalytic activity
(2015)"Sheets of ZnS(en)0.5 hybrid semiconductors were prepared by the precipitation method in an ethylenediamine–water solution and it was enlarged by varying the aging at a long period time. The characterization of the hybrid ... -
Environmental Nanoparticles Reach Human Fetal Brains
(MDPI, 2022)"Anthropogenic ultrafine particulate matter (UFPM) and industrial and natural nanoparticles (NPs) are ubiquitous. Normal term, preeclamptic, and postconceptional weeks(PCW) 8–15 human placentas and brains from polluted ... -
Environmentally Toxic Solid Nanoparticles in Noradrenergic and Dopaminergic Nuclei and Cerebellum of Metropolitan Mexico City Children and Young Adults with Neural Quadruple Misfolded Protein Pathologies and High Exposures to Nano Particulate Matter
(MDPI, 2022)"Quadruple aberrant hyperphosphorylated tau, beta-amyloid, ?-synuclein and TDP-43 neuropathology and metal solid nanoparticles (NPs) are documented in the brains of children and young adults exposed to Metropolitan Mexico ... -
Ermakov systems with multiplicative noise
(2014)"Using the Euler-Maruyama numerical method, we present calculations of the Ermakov-Lewis invariant and the dynamic, geometric, and total phases for several cases of stochastic parametric oscillators, including the simplest ... -
Ermakov-Lewis invariants and Reid systems
(2014)"Reid´s mth-order generalized Ermakov systems of nonlinear coupling constant ? are equivalent to an integrable Emden-Fowler equation. The standard Ermakov-Lewis invariant is discussed from this perspective, and a closed ... -
Ermakov-Ray-Reid systems with additive noise
(2015)"Using the methods developed by us in Cervantes-López et al. (2014) for multiplicative noises, we present results on the effects of the additive noise on the Ermakov-Lewis invariant. This case can be implemented in the ... -
Espectroscopía óptica aplicada al análisis químico de la sangre
(2005)"El análisis de algunos constituyentes de la sangre provee información de diagnostico en los procedimientos clínicos. Motivo por el cual es de gran interés en la comunidad medica el desarrollo de métodos ópticos mediante ... -
Esponjas de Nanotubos de Carbono a partir de Alcoholes
(2020-10)"Las esponjas de carbono están definidas como aquellas estructuras formadas por nanotubos de carbono dispuestos en un arreglo tipo tridimensional y muestran propiedades interesantes tales como: superhidrofobicidad, porosidad, ... -
Estructuración de redes de nanoalambres magnéticos asistida por ablación laser para modificar la anisotropía magnética efectiva
(2018-07)"Se sintetizaron redes de nanoalambres magnéticos por deposición electroquímica sobre membranas porosas de alúmina anodizada para producir arreglos ordenados con geometrías bien definidas. Con este fin se utilizó un ... -
Estudio de la microestructura y el efecto elastocalórico en aleaciones Cu-Al-Be
(2015-11)"Algunos materiales experimentan un cambio de temperatura cuando son sujetos a un cambio repentino de un campo externo aplicado (eléctrico, mecánico, magnético…). A esta propiedad se le conoce como efecto calórico y puede ... -
Estudio de la respuesta del hongo Trichoderma atroviride a la presencia de la planta Arabidopsis thaliana
(2024-04-03)"En el panorama de una constante evolución de la investigación científica, la integración de la biofísica al campo de la ciencia de los materiales ha surgido como un enfoque interdisciplinario, donde se exploran conocimientos ... -
Estudio de la transición magneto-elástica en aleaciones magnetocalóricas Mn2-xCrxSb (0.06 ≤ x ≤ 0.12) obtenidas en bulto y por enfriamiento ultrarrápido
(2017-11)"El presente trabajo reporta la síntesis de la aleación Mn2-XCrXSb con 0.06 ≤ x ≤ 0.12 obtenidas en bulto y en forma de cinta; y su caracterización estructural y magnética. Las muestras en bulto fueron fabricadas por ...