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Now showing items 11304-11323 of 39009
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Effect of Caffeine Supplementation on Sports Performance Based on Differences Between Sexes: A Systematic Review
(MDPI, 2019-09-30)Most studies that have shown the positive effects of caffeine supplementation on sports performance have been carried out on men. However, the differences between sexes are evident in terms of body size, body composition, ... -
Effect of calcination/reduction conditions of Ni/La2O3–αAl2O3 catalyst on its activity and stability for hydrogen production by steam reforming of raw bio-oil/ethanol
(Elsevier, 2014-04-05)The influence of calcination and reduction temperatures of Ni/La2O3–αAl2O3 catalyst used in the steam reforming of raw bio-oil was studied in the 550–850 °C range. The experiments were conducted by continuously feeding a ... -
Effect of Carbon Nanostructures and Fatty Acid Treatment on the Mechanical and Thermal Performances of Flax/Polypropylene Composites
(MDPI, 2020-02-13)Four different strategies for mitigating the highly hydrophilic nature of flax fibers were investigated with a view to increase their compatibility with apolar polypropylene. The effects of two carbon nanostructures (graphene ... -
Effect of CdSe nanoparticle addition on nanostructuring of PS-b-P4VP copolymer via solvent vapour exposure
(Elsevier, 2013-10-28)The surface morphology of poly(styrene-b-4 vinyl pyridine) (PS-b-P4VP) diblock copolymer thin films after solvent vapor annealing has been studied. Morphological features can be switched upon exposure to vapors of a ... -
Effect of Cellulose Nanofibers’ Structure and Incorporation Route in Waterborne Polyurethane–Urea Based Nanocomposite Inks
(MDPI, 2022-10-25)In order to continue the development of inks valid for cold extrusion 3D printing, waterborne, polyurethane–urea (WBPUU) based inks with cellulose nanofibers (CNF), as a rheological modulator, were prepared by two incorporation ... -
Effect of CeO2 and MgO promoters on the performance of a Ni/Al2O3 catalyst in the steam reforming of biomass pyrolysis volatiles
(Elsevier B.V., 2019-10-25)A Ni/Al2O3 catalyst has been modified incorporating CeO2 and MgO promoters in order to improve its performance in the steam reforming of biomass pyrolysis volatiles. Ni/Al2O3, Ni/CeO2-Al2O3 and Ni/MgO-Al2O3 catalysts have ... -
Effect of Chain Stereoconfiguration on Poly(3-hydroxybutyrate) Crystallization Kinetics
(American Chemical Society, 2022-08)Poly(3-hydroxybutyrate) (PHB) is naturally accumulated by bacteria but can also be synthesized chemically. Its processability is limited, as it tends to degrade at temperatures above its melting temperature; hence, ... -
Effect of Chemical Structure and Salt Concentration on the Crystallization and Ionic Conductivity of Aliphatic Polyethers
(MDPI, 2019-03-09)Poly(ethylene oxide) (PEO) is the most widely used polymer in the field of solid polymer electrolytes for batteries. It is well known that the crystallinity of polymer electrolytes strongly affects the ionic conductivity ... -
Effect of compatibilizer addition on the surface nucleation of dispersed polyethylene droplets in a self-nucleated polypropylene matrix
(Elsevier, 2022-12)A significant portion of the global plastics market encompasses the production of polyolefin materials and especially polypropylene (PP) and polyethylene (PE), as commodity polymers with a wide range of applications. ... -
Effect of consumers’ origin on perceived sensory quality, liking and liking drivers: A cross-cultural study on European cheeses
(Elsevier Ltd., 2020)We aim at studying consumers’ Perceived Sensory Quality (PSQ) concept. We manipulated a priori both familiarity (contrast local vs. foreign cheeses) and quality level (contrast PDO or traditional cheeses vs. their non- PDO ... -
Effect of cooperative management on organizational agility with the mediating role of employee empowerment in public transportation sector
(Instituto de Economía Aplicada a la Empresa (Universidad del País Vasco UPV/EHU), 2020-03-24)[EN] Different conditions in today’s organizational societies have led many firms to identify effective strategies to achieve the goal of agility for rapid adaptation to ever-increasing environmental changes. Cooperative ... -
Effect of crystallization of the polyhedral oligomeric silsesquioxane block on self-assembly in hybrid organic-inorganic block copolymers with salt
(Elsevier, 2021-03-01)[EN] We present a DSC and X-ray scattering study investigating the effect of polyhedral oligomeric silsesquioxane (POSS) block crystallinity on the self-assembly of a poly(acryloisobutyl polyhedral oligomeric silsesquioxane)- ... -
Effect of dairy cattle production systems on sustaining soil organic carbon storage in grasslands of northern Spain
(Regional Environmental Change, 2022)Predicting the regional net greenhouse gas emissions (Net GHG) of grasslands is increasingly important, as these are one of the most globally widespread vegetation types, providing several ecosystem services. In this study, ... -
Effect of deep brain stimulation on vocal motor control mechanisms in Parkinson's disease
(Parkinsonism and Related Disorders, 2019)motor symptoms in Parkinson's disease (PD); however, its effect on vocal motor function has yielded conflicted and highly variable results. The present study investigated the effects of STN-DBS on the mechanisms of ... -
Effect of Deterpenated Origanum majorana L. Essential Oil on the Physicochemical and Biological Properties of Chitosan/β-Chitin Nanofibers Nanocomposite Films
(MDPI, 2021-05-07)Herein, the effect of three deterpenated fractions from Origanum majorana L. essential oil on the physicochemical, mechanical and biological properties of chitosan/β-chitin nanofibers-based nanocomposite films were ... -
Effect of different aqueous synthesis parameters on the size of CdSe nanocrystals
(Springer Nature, 2012-06-30)The variation of CdSe nanoparticle size as a function of synthesis conditions is presented. Cadmium sulphate (CdSO4), cadmium chloride (CdCl2) and sodium selenosulphate (Na2SeSO3) solutions were used as precursors. ... -
Effect of different compatibilizers on the final properties of the PLA/PBSA biopolymers-based blend prepared by reactive extrusion
(2023-10-09)It is well known that the research for biopolymers-based materials is crucial in these times where the environmental issues resulting from the plastic industry keep increasing. Poly Lactic Acid (PLA), a biodegradable and ... -
Effect of different hemicelluloses characteristics on film forming properties
(Elsevier, 2013)Hemicelluloses are known to have good gas barrier properties makes them of interest to film applications. Corn cob, cotton waste, olive, apple tree pruning, pepper and chilli wastes were used as hemicelluloses sources ... -
Effect of different organosolv treatments on the structure and properties of olive tree pruning lignin
(Elsevier, 2014-05-25)Different organosolv processes (acetosolv, formosolv and acetosolv/formosolv) were applied to extract lignin from olive tree pruning. Obtained lignins were characterized by several methods to determine their composition, ... -
Effect of Different Types of Electrospun Polyamide 6 Nanofibres on the Mechanical Properties of Carbon Fibre/Epoxy Composites
(MDPI, 2018-10-25)Delamination and brittle matrix fracture have long since been the biggest problems in fibre-reinforced composites. Recently, the incorporation of electrospun nanofibre veils has been shown to be an effective method for ...