Results 31 to 40 of about 267,937 (275)

Accuracy and uncertainty of single-shot, nonresonant laser-induced thermal acoustics [PDF]

open access: yes, 2000
We study the accuracy and uncertainty of single-shot nonresonant laser-induced thermal acoustics measurements of the speed of sound and the thermal diffusivity in unseeded atmospheric air from electrostrictive gratings as a function of the laser power ...
Cummings, Eric B.   +3 more
core   +1 more source

Diffusion Properties of Garcinia Fruit Acids (Garcinia atroviridis)

open access: yesWalailak Journal of Science and Technology, 2011
The diffusion properties of garcinia fruit acids (Garcinia atroviridis) were investigated in a batch reactor. The influences of two variables were studied: material thickness and extraction temperature.
Waigoon RITTIRUT, Chairat SIRIPATANA
doaj   +1 more source

Promoted Disappearance of CO2 Hydrate Self-Preservation Effect by Surfactant SDS

open access: yesEnergies, 2021
The capture, storage and utilization of CO2 through hydrate-related technology is a promising approach to addressing the global warming issue. Dissociation is required after the transportation of CO2 gas in the form of a self-preserving hydrate. In order
Xueping Chen   +6 more
doaj   +1 more source

Drying kinetics and mathematical modelling of Arundo donax L. canes, a potential renewable fuel

open access: yesResearch in Agricultural Engineering, 2022
Arundo donax L. is an energy crop with the potential use as a renewable fuel. This study focused on the drying process of the canes in field and laboratory conditions to determine the effect of the harvest conditioning on the kinetics parameters of whole
Verónica Córdoba   +2 more
doaj   +1 more source

Estimating eddy diffusivities from noisy Lagrangian observations [PDF]

open access: yes, 2009
The problem of estimating the eddy diffusivity from Lagrangian observations in the presence of measurement error is studied in this paper. We consider a class of incompressible velocity fields for which is can be rigorously proved that the small scale ...
Cotter, C. J., Pavliotis, G. A.
core   +2 more sources

Reaction-diffusion processes with nonlinear diffusion [PDF]

open access: yesPhysical Review E, 2012
We study reaction-diffusion processes with concentration-dependent diffusivity. First, we determine the decay of the concentration in the single-species and two-species diffusion-controlled annihilation processes. We then consider two natural inhomogeneous realizations.
openaire   +3 more sources

Chemical ageing and transformation of diffusivity in semi-solid multi-component organic aerosol particles [PDF]

open access: yes, 2011
Recent experimental evidence underlines the importance of reduced diffusivity in amorphous semi-solid or glassy atmospheric aerosols. This paper investigates the impact of diffusivity on the ageing of multi-component reactive organic particles ...
Pfrang, Christian   +2 more
core   +3 more sources

Nuclear Isospin Diffusivity

open access: yes, 2003
The isospin diffusion and other irreversible phenomena are discussed for a two-component nuclear Fermi system. The set of Boltzmann transport equations, such as employed for reactions, are linearized, for weak deviations of a system from uniformity, in ...
E. A. Uehling   +16 more
core   +1 more source

Dynamic structure factor study of diffusion in strongly sheared suspensions [PDF]

open access: yes, 2005
Diffusion of neutrally buoyant spherical particles in concentrated monodisperse suspensions under simple shear flow is investigated. We consider the case of non-Brownian particles in Stokes flow, which corresponds to the limits of infinite Péclet number ...
Brady, John F., Leshansky, Alexander M.
core   +1 more source

Temporal diffusion [PDF]

open access: yesEurophysics Letters (EPL), 2003
7 pages including one ...
Boon, Jean-Pierre   +2 more
openaire   +2 more sources

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