Formaldehyde emission from wood composites includes mainly three mass transport processes: (1) the internal diffusion
process: the diffusion of formaldehyde from inside the wood composites to the surface; (2) the thermodynamic equilibrium process: absorption and stripping of formaldehyde between the air and the source interface; and (3) the convection transfer process: the diffusion of formaldehyde from the source boundary layer to the air.
In general, porous adsorbents show many steps in adsorption process ; such as, a) Internal diffusion
, b) External diffusion and c) Surface diffusion.
The phenol internal diffusion
to the particle surface.
The tradeoff between a battery's useful power and energy capacity is partly the result of internal diffusion
Leaf internal diffusion
conductance limits photosynthesis more strongly in older leaves of Mediterranean evergreen broad-leaved species.
1 from the refractive index of the acrylate binder resin, based on the weight of acrylate binder resin, and wherein the internal diffusion
haze of the film ranges from 15-40 and surface haze of the film is less than 15.
m1]) and it becomes analogous to the internal diffusion
To gauge the influence of knowledge diffusion on economic growth, this study proposes that VC provides an internal diffusion
channel in addition to the external diffusion channel for enhancing TFP growth.
If we form a mental picture of the internal diffusion
pathway through an O-ring as a capillary tube that's hundreds of meters long and crumpled into a ball, we can easily see that the permeating gases will not follow the net flow picture of a flow vector from atmosphere through the bulk and into the vacuum space.
The internal diffusion
model can better describe their growth.
Table 7 shows respondent ratings of barriers to internal diffusion
Hypothesis 3: Internal diffusion
and temporal coverage increase over the four levels of matrix complexity.