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Diffusion coefficients during osmotic dehydration of tomatoes in ternary solutions
(Elsevier B.V., 2004-02-01)
The apparent diffusion coefficients for sucrose, NaCl and water during osmotic dehydration of tomatoes in ternary solutions were determined. Long time experiments (up to 60 h) were carried out in order to determine equilibrium ...
Variational characterization of the speed of reaction diffusion fronts for gradient dependent diffusion
(2018)
We study the asymptotic speed of traveling fronts of the scalar reaction diffusion for positive reaction terms and with a diffusion coefficient depending nonlinearly on the concentration and on its gradient. We restrict ...
Photothermal Techniques Applied to the Determination of the Water Vapor Diffusion Coefficient and Thermal Diffusivity of Edible Films
(The Japan Society for Analytical Chemistry, 2013-01-16)
Stefan problems for the diffusion-convection equation with temperature-dependent thermal coefficients
(Pergamon-Elsevier Science Ltd, 2021-09)
Different one-phase Stefan problems for a semi-infinite slab are considered, involving a moving phase change material as well as temperature dependent thermal coefficients. Existence of at least one similarity solution is ...
Surface diffusion of k-mers in one-dimensional systems
(Elsevier Science, 2007-01-15)
The surface diffusion of interacting k-mers is studied both through analytical and Monte Carlo simulation methods in one-dimensional systems. Adsorption isotherms, jump diffusion coefficients and collective diffusion ...
Osmotic dehydration of apples in sugar/salt solutions: Concentration profiles and effective diffusion coefficients
(Elsevier B.V., 2010-10-01)
Apples (Fuji variety) were treated in aqueous sucrose (50% w/w) and salt (NaCl, 10% w/w) solutions for 2, 4 and 8 h (27 degrees C). Concentration profiles were determined as a function of the distance, considering the ...
Glass transition changes during osmotic dehydration
(J. L. Fernández-Muñoz, 2013-01-16)
Oxygen diffusion in soils: Understanding the factors and processes needed for modeling
(Inst Investigaciones Agropecuarias, 2015)
Oxygen is an important element for plant growth. Reducing its concentration in the soil affects plant physiological processes such as nutrient and water uptake as well as respiration, the redox potential of soil elements ...
The structure and diffusion behaviour of the neurotransmitter - aminobutyric acid (GABA) in neutral aqueous solutions
GABA ( -aminobutyric acid) is a non-protein amino acid with important physiological
properties, and with considerable relevance to the food and pharmaceutical industries.
Particular interest has focused on its role as ...
Diffusion coefficients during osmotic dehydration of tomatoes in ternary solutions
(Elsevier B.V., 2014)