Results 31 to 40 of about 266,529 (274)
Accuracy and uncertainty of single-shot, nonresonant laser-induced thermal acoustics [PDF]
, 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
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Materiales de Construccion, 2010 Concrete diffusivity is a function of its microstructure on many scales, ranging from nanometres to millimetres. Multi-scale techniques are therefore needed to model this parameter.
M. Z. Zhang, G. Ye, K. van Breugel
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Drying kinetics and mathematical modelling of Arundo donax L. canes, a potential renewable fuel
Research 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
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Diffusion Properties of Garcinia Fruit Acids (Garcinia atroviridis)
Walailak 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
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Chemical ageing and transformation of diffusivity in semi-solid multi-component organic aerosol particles [PDF]
, 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
Estimating eddy diffusivities from noisy Lagrangian observations [PDF]
, 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.
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Reaction-diffusion processes with nonlinear diffusion [PDF]
Physical 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
Can disorder enhance incoherent exciton diffusion? [PDF]
, 2015 Recent experiments aimed at probing the dynamics of excitons have revealed that semiconducting films composed of disordered molecular subunits, unlike expectations for their perfectly ordered counterparts, can exhibit a time-dependent diffusivity in ...
Lee, Elizabeth M. Y. +2 more
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Frontiers in Materials, 2021 Effective properties of functional materials crucially depend on their 3D microstructure. In this paper, we investigate quantitative relationships between descriptors of two-phase microstructures, consisting of solid and pores and their mass transport ...
Benedikt Prifling +6 more
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, 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
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