Both the turbulent dissipation rate and diapycnal diffusivity
vary by several orders of magnitude across ocean basins.
Figure 2a--b plots the effective moisture diffusivity
variations in the radial direction in the 9 mm particle at a steam temperature of T = 483 K and T = 463 K, respectively.
There is a trend of increase in the effective diffusivity
with the increment of pulp layer thickness and with the increment in temperature.
The functions for the hydraulic conductivity (Eqn 12) and the diffusivity
(Eqn 13) are plotted in Fig.
By plotting ln (1 - x) versus (t), the diffusivity
(D) can be calculated from the slope, where
5 is based on the assumption that the moisture diffusivity
is constant, the banana slices represent infinite slab geometry and the initial moisture distribution is uniform (Demirel and Turhan, 2003; Abano and Sam-Amoah, 2011; Thuwapanichayanan et al.
In the current work this method was used to measure the solubility and diffusivity
in polyethylene of water and of 1-octene and cyclohexane at different water activities and low pressure.
Therefore, the main objectives of this study were the followings: (i) to determine the physical properties of cowpea seeds; (ii) investigate the effects of rehydration temperature and microwave output power on the water uptake kinetics of cowpea seeds; (iii) develop the mathematical models representing the time dependence of the moisture content during soaking; (iv) determine the effective moisture diffusivity
coefficients; and (v) estimate the activation energy for kinetic constant of the Peleg's Model for cowpea seeds during soaking.
e] from the relationship between water content ([theta]) and total diffusivity
Consequently a flux limiter is included to slow down the movement and the diffusivity
term is rewritten as:
While concrete specifications typically are based on compressive strength and slump, it is well recognized that durability is most influenced by the transport properties of the concrete, such as diffusivity
, permeability, and sorptivity.
The present model simulates hot electron transport properties by using nonlinear steady-state velocity and diffusivity
curves in the current continuity equation.
We suggest that conductivity of sea ice and thermal diffusivity
of seawater are key factors that cause the difference in sea-ice response.
This can in tam show the direction of NO, as marked by the level of diffusivity
, in the nasal cavity and its association with certain upper airway dysfunctions and diseases.
A mathematical model was created to describe the minimum flow line of oxygen through film and the average diffusivity