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A simple method to determine the diffusivity of green wood [PDF]
, 2020 Log temperature appreciably influences veneer quality during the rotary peeling process. The assessment of the thermal properties of green wood is complex and typically requires the sawing of small calibrated samples.
DENAUD, Louis +4 more
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On the effect of the molecular diffusivity in turbulent diffusion [PDF]
Journal of Fluid Mechanics, 1960 It is shown that the dispersion of a substance, with molecular diffusivity κ, in a stationary, homogeneous, turbulent velocity field can be formulated in terms of a ‘substance auto-correlation function’, this being a generalization of the well-known Lagrangian correlation between the velocity of a fluid particle at different times. It is found that the
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Energies, 2021 The effect of drying temperature and the application of ultrasound on drying kinetics of Lawsonia inermis (henna) leaves and the extraction of lawsone from the dried samples was addressed.
Said Bennaceur +6 more
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Effective diffusions with intertwined structures
Matemática Contemporânea, 2023 Let p:N->M be a surjective map of smooth manifolds. We are concerned with singular perturbation problems associated to a pair of second order positive definite differential operators with no zero order terms, that are intertwined by p. We discuss the associated random perturbations of stochastic differential equations and present a number of ...
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Effective diffusivity of sulfuric acid in Antarctic ice cores [PDF]
Climate of the PastDeposition of sulfuric acid in ice cores is important both for understanding past volcanic activity and for synchronizing ice core timescales. Sulfuric acid has a low eutectic point, so it can potentially exist in liquid at grain boundaries and veins ...
T. J. Fudge +6 more
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Fast Models for Predicting Pollutant Dispersion inside Urban Canopies
Atmosphere, 2023 A fast pollutant dispersion model for urban canopies is developed by coupling mean wind profiles to a parameterisation of turbulent diffusion and solving the time-dependent advection–diffusion equation.
Huanhuan Wang +2 more
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Effective Isentropic Diffusivity of Tropospheric Transport [PDF]
, 2014 Tropospheric transport can be described qualitatively by the slow mean diabatic circulation and rapid isentropic mixing, yet a quantitative understanding of the transport circulation is complicated, as nearly half of the isentropic surfaces in the ...
Chen, Gang, Plumb, R. Alan
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DRYING KINETICS OF PEANUT KERNELS IN THIN LAYERS [PDF]
Engenharia Agrícola, 2017 : The aim of this study was to adjust mathematical models to the experimental data on the peanut kernels drying in thin layer, as well as to determine the effective diffusion coefficient and the main thermodynamic properties involved in drying of the ...
André L. D. Goneli +4 more
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Vacuum Drying Characteristics of Some Vegetables [PDF]
Iranian Journal of Chemistry & Chemical Engineering, 2011 In this research the drying of four kinds of vegetables was investigated in a vacuum dryer. The effect of temperature on drying rate of samples at various temperatures (30, 35 and 45 °C) was studied.
Esmaeil Zakipour, Zohreh Hamidi
doaj
Modeling and Effects of Various Drying Methods on Sweet Potato Starch Properties
Walailak Journal of Science and Technology, 2011 Eleven mathematical models (Lewis, Page, Henderson and Pabis, modified Henderson and Pabis, Wang and Singh, logarithmic, two term, two term exponential, Midilli, approximation of diffusion and Verma et al, model) were used for describing the drying ...
Ho Minh THAO, Athapol NOOMHORM
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