Results 21 to 30 of about 796 (109)

Los límites de la alteridad: el otro desde la energética social

open access: yesLiminar: Estudios Sociales y Humanísticos, 2015
La alteridad ha sido abordada desde varias perspectivas, como la educación, el lenguaje, la psicopedagogía, la psicología, la sociología, la antropología o la filosofía, por lo que se ha considerado necesario efectuar una recapitulación de los avances en
Alain G. Jullian Montañez
doaj   +3 more sources

Termodinâmica Estendida de Fluidos Viscosos com Condução de Calor

open access: yesTrends in Computational and Applied Mathematics, 2006
Termodinâmica estendida é uma teoria fenomenológica com o objetivo principal de determinar os campos de deformação, temperatura, tensão e fluxo de calor.
A. Vignatti, I. Shih Liu
doaj   +1 more source

Electrocatalytic Oxidation of Acetaminophen on a PVC/TTF-TCNQ Composite Electrode Modified by Gold Nanoparticles: Application as an Amperometric Sensor

open access: yesInternational Journal of Electrochemical Science, 2011
This work shows the electrocatalytic activity towards the oxidation of acetaminophen of a composite electrode PVC/TTF-TCNQ modified with gold nanoparticles.
Guadalupe Sánchez-Obrero   +4 more
doaj   +1 more source

Subcritical water-ethanol treatment for sugar cane trash biomass fractionation: An experimental study of the effect of process conditions on simultaneous delignification and hydrolysis

open access: yesIndustrial Crops and Products
Biomass fractionation by delignification and hydrolysis of sugar cane trash with subcritical water-ethanol treatment was investigated by experimental factorial design in which temperature and ethanol volume percent (v.%) were the assessed factors.
Gabriel Morales-Gutiérrez   +4 more
doaj   +1 more source

Temperature Effect on the Electrooxidation of Gamma Hydroxybutyric Acid (GHB) on Platinum Catalyst through Cyclic Voltammetry, Chronoamperometry, Impedance Spectroscopy and SERS Spectroelectrochemistry

open access: yesInternational Journal of Electrochemical Science, 2016
A study of the electro-oxidation of gamma hydroxybutyric acid (GHB) on platinum electrode in acidic media has been investigated by cyclic voltammetry, chronoamperometry and electrochemical impedance spectroscopy in the temperature range between 5 and 30 ...
R. Jiménez-Pérez   +4 more
doaj   +1 more source

Squalene Extraction by Supercritical Fluids from Traditionally Puffed Amaranthus hypochondriacus Seeds

open access: yesJournal of Food Quality, Volume 2017, Issue 1, 2017., 2017
Extraction of squalene, a potent natural antioxidant, from puffed A. hypochondriacus seeds was performed by supercritical fluid extraction (SCFE); besides, to have a blank for comparison, extraction was performed also by Soxhlet method using organic solvents (hexane). Chemical proximal composition and seed morphology were determined in raw, puffed, and
Teresa Rosales-García   +7 more
wiley   +1 more source

Remoción de metales pesados en agua empleando bioadsorbentes magnéticos

open access: yesMundo Nano
En este trabajo se realizó la síntesis, caracterización y aplicación de un bioadsorbente de pectina – magnetita con propiedades magnéticas para remover metales pesados en soluciones acuosas.
Julia Guerra Hernández   +1 more
doaj   +1 more source

Impact of Molecular Design and Conjugation in Diammonium A′‐Cations on the Photovoltaic Performance of Quasi‐2D Perovskite Solar Cells

open access: yesSolar RRL, Volume 9, Issue 24, December 2025.
The chemical nature of the spacer cations employed in quasi‐2D metal halide perovskites (MHPs) matters in the performance of the perovskite solar cells (PSCs).This study presents three π‐conjugated diammonium spacers based on diphenylacetylene and on a biphenyl core flanked by alkyne moieties, which were synthesized to prepare quasi‐2D MHP thin films ...
Susana Ramos‐Terrón   +8 more
wiley   +1 more source

Effect of geometric parameters on the heat transfer performance of a submerged coil condenser for heat-pump water heating

open access: yesInternational Journal of Thermofluids
Water heating with heat pumps can contribute to reduce carbon dioxide emissions and meet sustainability goals due to its high thermal efficiency, versatility in terms of alternative energy sources and thermal energy storage capability. In this study, the
Santiago Valencia-Cañola   +3 more
doaj   +1 more source

Catalase‐Based Air‐Cathode for Biocompatible Zinc–Air Battery

open access: yesChemCatChem, Volume 17, Issue 3, February 6, 2025.
This article highlights the use of catalase (CAT) as electrocatalyst for the oxygen reduction reaction (ORR) in the air electrode of zinc–air batteries (ZABs). CAT immobilized with Nafion on electrode surfaces demonstrates great long‐term stability, exhibiting direct electrochemical response and retaining its bioactivity. CAT‐Nafion ZAB provides better
Valentín García‐Caballero   +6 more
wiley   +1 more source

Home - About - Disclaimer - Privacy