Buscar
Mostrando ítems 131-140 de 473
Computational investigation of structure, dynamics and nucleation kinetics of a family of modified Stillinger-Weber model fluids in bulk and free-standing thin films
(Royal Society of Chemistry, 2016-01)
In recent years, computer simulations have found increasingly widespread use as powerful tools for studying phase transitions in wide variety of systems. In the particular and very important case of aqueous systems, the ...
Glow discharge in a high-velocity air flow: The role of the associative ionization reactions involving excited atoms
(Multidisciplinary Digital Publishing Institute, 2019-08)
A kinetic scheme for non-equilibrium regimes of atmospheric pressure air discharges is developed. A distinctive feature of this model is that it includes associative ionization with the participation of N(2D, 2P) atoms. ...
Effects of the H2O2 Concentration and Spectral Distribution of the UV Lamp Output Power on the Photooxidation for a Water Pollutant
(IWA Publishing, 2001-04)
Previous kinetics studies have been extended to analyze some practical issues concerning this process. Hence, in this work we have studied additional aspects of the H2O2 enhanced, UV degradation of 2,4-dichlorophenoxyacetic ...
Thermodynamic analysis of the reaction-induced phase separation in model systems based on blends of a rubber in diepoxide/monoamine precursors
(Wiley, 2003-08)
The reaction-induced phase separation in blends based on a carboxyl-terminated poly(butadiene-co-acrylonitrile) rubber (CTBN), dissolved in diglycidyl ether of bisphenol A (DGEBA) - benzylamine (BA) monomers, was studied. ...
High density lipoprotein is an inappropiate substrate for hepatic lipase in postmenopausal women
(Elsevier Science, 2012-09)
Background HDL antiatherogenic effects would not only depend on its concentration but also on its biological quality. Hepatic lipase (HL) action on HDL acts in one of the last steps of reverse cholesterol transport. ...
Biomass derivative valorization using nano core-shell magnetic materials based on keggin-heteropolyacids: Levulinic acid esterification kinetic study with n-butanol
(Hindawi Publishing Corporation, 2019-05-12)
Magnetic materials based on Keggin heteropolyacids immobilized on mesoporous silica-coated magnetite particles with a core-shell structure were synthesized. The activity of the catalyst was studied in the esterification ...
Unraveling Kinetic Effects during Photoelectrochemical Mineralization of Phenols. Rutile:Anatase TiO2Nanotube Photoanodes under Thin-Layer Conditions
(American Chemical Society, 2021-01)
The kinetics of the photoelectrochemical mineralization of p-nitrophenol (PNP) and p-methoxyphenol (PMP) on rutile:anatase TiO2 nanotube electrodes (% rutile: 0, 16, and 20) has been studied. Oxidative photocurrent enhances ...
A simple protocol to characterize bacterial cell-envelope lipoproteins in a native-like environment
(John Wiley & Sons Inc, 2019-11)
Physiological conditions in living cells are strictly regulated to allow, optimize, and coordinate biological processes. The bacterial cell envelope is the compartment where the communication with the external environment ...
Macro-TGA steam-assisted gasification of lignocellulosic wastes
(Academic Press Ltd - Elsevier Science Ltd, 2019-03)
The kinetics of the steam-assisted gasification for three different agro-industrial solid wastes (sawdust, olive and plum pits) was studied by macro thermo-gravimetric analysis (macro-TGA) at different heating rates (5, ...
Membrane adsorption or penetration differentially modulates β-galactosidase activity against soluble substrates
(Elsevier Science, 2002-01)
We investigated if in complex environments, like those where β-galactosidase activity is usually assayed, the kinetics of hydrolysis against soluble substrates could be modulated through enzyme-surface interactions. Kinetic ...