Listar Artículos de revista DCIE - ZIES Aldizkari artikuluak por título
Mostrando ítems 21-40 de 293
-
Bimetallic (Pt-Ni) La-hexaaluminate catalysts obtained from aluminum saline slags for the dry reforming of methane
This work describes the synthesis of platinum-nickel/lanthanum hexaaluminates (PtNi/LHA) and their performance in terms of stability and catalytic activity in the dry reforming of methane (DRM) at 973 K. An Al solution ... -
Biodiesel production from heterogeneous catalysts based K2CO3 supported on extruded Γ-Al2O3
Catalytic biodiesel production from sunflower oil and ethanol using K2CO3/γ-Al2O3 in different configurations has been studied. To prepare the catalysts, boehmite was extruded with the aid of a binder and different percentages ... -
Biodiesel synthesis using a novel monolithic catalyst with magnetic properties (K2CO3/γ-Al2O3/Sepiolite/γ-Fe2O3) by ethanolic route
A novel magnetic monolithic catalyst based on K2CO3/γ-Al2O3/Sepiolite/γ-Fe2O3 was developed seeking to convert efficiently soybean oil and bioethanol to ethanolic biodiesel and glycerol. The magnetic monolithic was attained ... -
Biological and synthetic approaches to inhibiting nitrification in non-tilled Mediterranean soils
Background: The increasing demand for food production has led to a tenfold increase in nitrogen (N) fertilizer use since the Green Revolution. Nowadays, agricultural soils have been turned into high-nitrifying environments ... -
Biological solubilisation of leather industry waste in anaerobic conditions: effect of chromium (III) presence, pre-treatments and temperature strategies
Collagen-based polymers and their blends have attracted considerable interest for new materials development due to their unique combination of biocompatibility, physical and mechanical properties and durability. Leather, ... -
Boltzmann and the statistical multifractals
We extend the Boltzmann’s ideas that describe the evolution to the equilibrium of many body systems to the multifractalde composition of the unitary intervalI, in terms of sets Jα conformed by points with the same pointwise ... -
Calculadora de sostenibilidad FIRST-Heat Navarra: generando energía sostenible al reducir el riesgo de incendios forestales en comunidades rurales
El cambio climático, la expansión urbanística o el aumento del uso recreativo en zonas forestales están aumentando la probabilidad de ocurrencia de incendios forestales. Las comunidades rurales pueden afrontar la oportunidad ... -
Carbohydrate and amino acid dynamics during grain growth in four temperate cereals under well-watered and water-limited regimes
Grain development in cereals depends on synthesis and remobilisation compounds such as water-soluble carbohydrates (WSCs), amino acids (AAs), minerals and environmental conditions during pre-and post-anthesis. This study ... -
Carbon density in boreal forests responds non-linearly to temperature: an example from the Greater Khingan Mountains, northeast China
Boreal forests play a crucial role in the global carbon (C) cycle and in climate stabilization. To better predict global C budgets, it is important to accurately estimate the size of forest C pools, and to identify the ... -
Casein nanoparticles in combination with 2-hydroxypropyl-B-cyclodextrin improves the oral bioavailability of quercetin
The aim of this work was to optimize the preparative process of quercetin loaded casein nanoparticles as well as to evaluate the pharmacokinetics of this flavonoid when administered orally in Wistar rats. Nanoparticles ... -
CASPT2 study of the electronic structure and photochemistry of protonated N-nitrosodimethylamine (NDMA-H+) at 453 nm
In this work, we have studied the photodissociation of the protonated derivatives of N-nitrosodimethylamine [(CH3)2N–NO] with the CASPT2 method. It is found that only one of the four possible protonated species of the ... -
Catalytic performance of bulk and Al₂O₃-supported molybdenum oxide for the production of biodiesel from oil with high free fatty acids content
Non-edible vegetable oils are characterized by high contents of free fatty acids (FFAs) that prevent from using the conventional basic catalysts for the production of biodiesel. In this work, solid acid catalysts are used ... -
Catalytic photodegradation of organic compounds using TiO2/pillared clays synthesized using a nonconventional aluminum source
This study evaluates the photocatalytic degradation of 2,6-dichlorophenol (2,6-DCP), triclosan (TCS) and bisphenol A (BPA) by ultraviolet (UV) and visible (VIS) light in the presence of TiO2/catalysts synthesized by wet ... -
Catalytic valorization of CO2 by hydrogenation: current status and future trends
Terrestrial environmental and biological systems are being threatened by the tremendous amount of human carbon dioxide emissions. Therefore, it is crucial to develop a sustainable energy system based on CO2 as chemical ... -
Cellulose polymers with β-amino ester pendant group: design, synthesis, molecular docking and application in adsorption of toxic metals from wastewater
Background: Cellulose polymers with multidentate chelating functionalities that have high eficiency for toxic metal ions present in water were designed, synthesized, and analyzed. The synthesis was carried out by reacting ... -
Cerámicas mudéjares en el entorno de la meseta castellana: hallazgos en Bonilla de la Sierra (Ávila)
(Universidad Autónoma de Madrid, Departamento de Prehistoria y Arqueología, 2022) Artículo / ArtikuluaLas excavaciones realizadas en la muralla de Bonilla de la Sierra (Ávila, España) han sacado a la luz un conjunto de cerámicas procedentes de los siglos xiv/xv, de factura mudéjar (lozas decoradas en verde-manganeso, azul ... -
Changes in long-term light properties of a mixed conifer–broadleaf forest in Southwestern Europe
Natural and anthropogenic factors affect forest structure worldwide, primarily affecting forest canopy and its light properties. However, not only stand-replacing events modify canopy structure, but disturbances of lower ... -
CIELAB color paths during meat shelf life
Meat color evolution from freshly cut to beyond shelf life, up to 40% of metmyoglobin, has been theoretically modeled using the Kubelka-Munk theory and a set of measured reference reflectance spectra of deoxymyoglobin, ... -
Classical and new insights into the methodology for characterizing adsorbents and metal catalysts by chemical adsorption
The adsorption phenomenon has been used extensively to achieve and explain solid-state reactions, control contamination, and purify liquids and gases. This process implies the use of a porous medium or a material with ... -
CO2 methanation over nickel catalysts: support effects investigated through specific activity and operando IR spectroscopy measurement
Renewed interest in CO2 methanation is due to its role within the framework of the Power-to-Methane processes. While the use of nickel-based catalysts for CO2 methanation is well stablished, the support is being subjected ...