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Showing 1 to 11 of 11 for “"N2(A)"”.
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Impacting factors for attention in children who are internationally adopted
… potentials (e.g., Error related negativity, N2). A post-hoc analysis of a pre-existing data set included 96 IA children ages 5-10. The main finding indicated that children cared for in foster care over time were rated by parents as less impulsive and had lower parent ratings of Attention …
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Simulating Nitric Oxide in the lower thermosphere using a 3D model
Nitric oxide (NO), despite being a minor species, influences the chemistry, composition and energy balance of the earth's atmosphere above 90 kilometers. Variations in its density have been shown to strongly correlate with solar x-ray irradiance at lower latitudes and precipitating energetic …
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Catalizadores basados en carburo de molibdeno para la producción de hidrógeno a partir de etanol : estudio combinado teórico-experimental
… fueron caracterizadas por sortometría de N2 a 77K, reacción a temperatura programadas (TPRx), difracción de rayos X y espectroscopia fotoelectrónica de rayos X (XPS). La desorción de hidrógeno molecular fue detectada para ambos catalizadores donde previamente se había adsorbido etanol, …
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Diseño e implementación de estrategias de control en un biofiltro percolador anóxico para la deslfuración de biogás
… de entrada de 700 a 3800 ppmV) y resto N2, a un caudal de 1,1 L min-1, operando en flujo paralelo.
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Impacts of the non-native aquatic plant water chestnut, Trapa natans, on inland freshwater nitrogen and oxygen dynamics, and host-specificity testing of the biological control insect, Galerucella birmanica
… collected water and sediment. Concentrations of N2, a denitrification product, were higher in sites within Trapa beds, but rates of changes in N2 did not differ in the presence of Trapa, suggesting that we did not fully capture denitrification dynamics in the experiment. Due to the ecological …
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Preparation, characterization and carrier gas transport characteristics of inorganic and organic membranes for application in lactic acid esterification with ethanol.
… helium (He), carbon dioxide (CO2) and nitrogen (N2). A 15nm pore size commercially available tubular ceramic support, consisting of 77%Al2O3 and 23%TiO2 with the porosity of 45% was used for the carrier gas investigation. The support was modified with silica based on the sol-gel dip-coating …
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The Effects of Chlorine on Boiler Corrosion
… from 0.2% to 0.0% and the balance of gas being N2. A Lindbergh Three Temperature Tube Furnace was used to house the metal samples at 100°C, 200°C, and 600°C while being subjected to the simulated flue gas stream. The six metal samples were chosen on the frequency of industrial use. Two carbon …
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Empleo de catalizadores heterogéneos para el aprovechamiento de biomasa lignocelulósica mediante pirólisis
… se lleva a cabo mediante TPR, sortometría de N2 a 77K, TEM, FTIR, medidas de acidez potenciométricas y TPD de NH3. En el Capítulo 5 se detalla la pirólisis en presencia de los catalizadores. Se evalúan las cantidades relativas de las tres fases, gaseosa, líquida y sólida y la influencia de las …
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Pirólisis de biomasa residual abundante en la región sur de la provincia de Buenos Aires para la obtención de productos de alto valor agregado
… Se realizan pirólisis en un reactor en flujo de N2 a 400°C, cuantificándose e identificándose mediante cromatografía gaseosa acoplada a detección por masas los productos que genera esta biomasa. Se determina la influencia de pretratamientos químicos y de la presencia de catalizadores heterogéneos …
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Aplicación de catalizadores metálicos heterogéneos en reacciones de interés ambiental
… y medidas de isotermas de adsorción-desorción de N2 a 77 K. Se llevó a cabo un análisis estructural a partir del refinamiento de los datos de DRX empleando el método Rietveld, y los resultados se informan en los Anexos I y II. En el Capítulo IV se presentan y analizan los resultados de la …
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The Electronic and Vibrational Spectroscopy of Metal Phthalocyanines and Metal Phthalocyanine Chlorides Isolated in Low Temperature Solids
… in an inert gas solid such as the rare gases or N2 at cryogenic temperatures allows for the acquisition of highly resolved spectra with very narrow bandwidths and the absence of hot bands or rotational bands. Furthermore, the positions of the bands are only slightly shifted from gas phase values …