Repositorio IPICyT: Envíos recientes
Mostrando ítems 1141-1160 de 2345
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Propiedades fotónicas en nanoestructuras de Au y Au@SiO2
(2018-11)"La principal motivación de este trabajo de investigación es analizar e interpretar la interacción de la luz con arreglos de nanopartículas de distintas geometrías mediante cálculos en la Aproximación de Dipolo Discreto ... -
Structural characteristics of the mesophyll in some tillandsia species
(1984)The mesophyll of 14 species of Tillandsia [T. caput-medusae, T. complanata, T. brachiavlos, T. ionantha, T. flabellata, T. fasciculata, T. latifolia, T. purpurea, T. pueblensis, T. prodigiosa, T. retorta, T. schiedeana, ... -
Desarrollo de la metodología MEPAM para la determinación de la conexión hidráulica entre una zona de recarga y una de descarga, caso Joya de Luna y Guaxcamá, San Luis Potosí.
(2018-10)"En la región Centro-Oriente de México existen zonas con extensos afloramientos de rocas calcáreas plegadas formando sistemas montañosos con intenso desarrollo cárstico. El abastecimiento de agua en esta región se logra ... -
Desarrollo y evaluación fisicoquímica y antibacteriana de membranas reactivas para eliminar el biofuling en un proceso de microfiltración
(2018)"El uso de nanopartículas ha incrementado en los últimos años, en áreas como la física, química, biología o materiales gracias a la mejora de sus propiedades y a su relación superficie/volumen. Sin embargo, al presentar ... -
Expresión heteróloga de péptidos antiangiogénicos en Pichia pastoris
(2018-09)"La vasostatina (Vs30) y la vasoinhibina (Vi-II-14.1) son péptidos inhibidores de la angiogénesis que son derivados de la región N-terminal de la calreticulina y la prolactina humana, respectivamente. Anteriormente, Vs30, ... -
Estrategias de control de las comunidades microbianas durante la fermentación oscura
(NA, 2018-09)"La fermentación oscura es la alternativa más factible para la producción biológica de hidrógeno (H2). Este bioproceso depende de la capacidad metabólica de microorganismos anaerobios que utilizan sustratos orgánicos y ... -
Producción de biohidrógeno en un reactor de tanque agitado continuo: Evaluación de los hidrolizados de bagazo de agave obtenidos con enzimas comerciales
(2018-09)"La producción de hidrógeno por métodos biológicos a partir de fuentes renovables, como la fermentación oscura de biomasa, resulta una alternativa prometedora para reducir la dependencia a los combustibles fósiles ya que ... -
Enhanced magnetocaloric effect tuning efficiency in Ni-Mn-Sn alloy ribbons
(Elsevier B.V., 2017-11)"The present work was undertaken to investigate the effect of microstructure on the magnetic entropy change of Ni50Mn37Sn13 ribbon alloys. Unchanged sample composition and cell parameter of austenite allowed us to study ... -
Transformation behavior and magnetocaloric effect in Mn1−xCrxCoGe (x = 0.04 and 0.11) melt-spun ribbons tailored by heat treatment
(Elsevier, 2017-12)"Recently, MnNiGe and MnCoGe intermetallic compounds have received a considerable attention due to the coupled tunable martensitic and magnetic transitions as well as giant magnetocaloric effect (MCE) they exhibit. In this ... -
Broad first-order magnetic entropy change curve in directionally solidified polycrystalline Ni-Co-Mn-In
(Elsevier B.V., 2017-12)"We present the thermal dependence of the magnetic entropy change ΔSM(T) across the martensitic transformation for a polycrystalline sample, which was cut from a directionally solidified rod, with a nominal composition ... -
Hetero- and homodimerization of Arabidopsis thaliana arginine decarboxylase AtADC1 and AtADC2
(Elsevier B.V., 2017-03)"The arginine decarboxylase enzyme (ADC) carries out the production of agmatine from arginine, which is the precursor of the first polyamine (PA) known as putrescine; subsequently, putrescine is turned into the higher PAs, ... -
Modification of AtGRDP1 gene expression affects silique and seed development in Arabidopsis thaliana
(Elsevier B.V., 2017-04)"Glycine Rich Proteins (GRPs) are induced at different developmental stages and in specific plant tissues. Recently, we described a novel Arabidopsis gene encoding a short glycine-rich domain protein (AtGRDP1). This gene ... -
Room temperature ferromagnetism and ferroelectricity in strained multiferroic BiFeO3 thin films on La0.7Sr0.3MnO3/SiO2/Si substrates
(Elsevier B.V, 2017-04)"A novel ferromagnetic state coexisting with ferroelectric ordering at room temperature in strained BiFeO3 (BFO) thin films grown using a sputtering technique on La0.7Sr0.3MnO3/SiO2/Si(100) (LSMO/SOS) substrates is reported. ... -
Sincronización y control de redes dinámicas con topología conmutada
(2018-09)"Las redes dinámicas conmutadas son modelos matemáticos de sistemas dinámicos complejos que se presentan en todas las áreas del conocimiento, las cuales capturan propiedades de interés, como la estructura, evolución de los ... -
Tailoring partially reduced graphene oxide as redox mediator for enhanced biotransformation of iopromide under methanogenic and sulfate-reducing conditions
(Elsevier B.V., 2017-01)"This work reports the first successful application of graphene oxide (GO) and partially reduced GO (rGO) as redox mediator (RM) to increase the biotransformation of the recalcitrant iodinated contrast medium, iopromide ... -
Gold recovery from very dilute solutions from a mine in closing process: adsorption-desorption onto carbon materials
(Elsevier B.V., 2017-08)"The aurocyanide complex recovery by precipitation with zinc decreases when gold concentration drops to < 20 μg L− 1. Therefore, a technology capable of recovering gold from very diluted solution is necessary. Adsorption ... -
Arsenic contamination in irrigation water, agricultural soil and maize crop from an abandoned smelter site in Matehuala, Mexico
(Elsevier B.V., 2017-10)"Mobility of Arsenic (As) from metallurgical wastes in Matehuala, Mexico has been accounted for ultra-high concentration of As in water (4.8–158 mg/L) that is used for recreational purposes as well as cultivation of maize. ... -
Control strategy of a quadratic boost converter with voltage multiplier cell for high-voltage gain
(IEEE, 2017-12)"The need of dc-dc switching converters for power supplies with high-voltage gains has increased in the recent years due to new applications in areas as renewable energy systems, transportation, industrial, medical, and ... -
Robust sliding mode‐based extremum‐seeking controller for reaction systems via uncertainty estimation approach
(John Wiley & Sons, 2017-01)"This paper deals with the design of a robust sliding mode‐based extremum‐seeking controller aimed at the online optimization of a class of uncertain reaction systems. The design methodology is based on an input–output ... -
Synthesis of reduced graphene oxide (rGO) films onto carbon steel by cathodic electrophoretic deposition: anticorrosive coating
(Elsevier, 2017-10)"The use of graphene based materials as anticorrosive coatings for the protection of metals is still a controversial subject worthy of debate. The electrophoretic deposition (EPD) is one of the most used techniques to ...