diffusion

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diffusion

the process whereby INNOVATIONS are accepted and used by firms and consumers through imitation, licensing agreements or sale of products and patents.
Collins Dictionary of Economics, 4th ed. © C. Pass, B. Lowes, L. Davies 2005
References in periodicals archive ?
K.: Physics of carrier-transport mechanisms and ultra-small scale phenomena for theoretical modeling of nanometer MOS transistors from diffusive to ballistic regimes of operation.
(a) Absolute recovery (induced diffusive flux rates); (b) relative recovery of peptides (% of standard solution concentration), measured at different perfusate flow rates (1 - 10 [micro]L [min.sup.-1]), from a solution containing 10 peptides and N[H.sub.4.sup.+] (10 [micro]mol [L.sup.-1] of each compound); and (c) the effect of molecular weight on the relative recovery of the same peptides and of N[H.sub.4.sup.+] (10 [micro]mol[L.sup.-1]) at a constant perfusate flow rate of 1 and of 5 [micro]L [min.sup.-1].
The permanent verification of the sampling rate, based on weight losses of permeation tubes, is an independent way of checking the overall performance of diffusive sampling systems.
Interpretation of DGT-induced fluxes indicates the degree of depletion of the solution metal concentration in the vicinity of the DGT probe (as determined by the thickness of the diffusive layer), the kinetics of desorption of metals, and the extent of the pool(s) of labile metal species in the particulate phase [24, 25].
Therefore, the system exhibits the diffusive behavior only in the beginning of the evolution, contrary to the OU model, and eventually the deterministic force takes over.
It appears that by applying a more appropriate sample preparation water stable isotope data consistent with diffusive exchange may be obtained from advective displacement.
Dunbar, "Traveling wave solutions of diffusive Lotka-Volterra equations: a heteroclinic connection in R4," Transactions of the American Mathematical Society, vol.
In particular, the application of this problem can be found in: building design and heat transfer, magmas and in other fluids of Geophysical and Geophysics, astrophysics, oceanography, lava flows may be responsible for enhancing the rise of volcanic plumes into the Earths stratosphere, convective phenomena in both multicoinponent fluids and crystallizing fluid systems, and salt finger and diffusive interfaces.
where [[eta].sub.Dj]- and [[eta].sub.R,j]- represent the diffusive and interceptive collection efficiency, respectively.
The greenhouse had 50m of length, 7m of width, 4m of height (north-south direction), divided in two environments: Environment I (EI)--covered with low-density polyethylene film (solar radiation (SR) transmissivity: 80%) associated with thermoreflective screen (SR transmissivity: 57-60%), installed internally at the ceiling height; Environment II (EII)--covered with a diffusive plastic film (SR transmissivity: 60%).
The end surfaces dried because of capillary and diffusive moisture losses through the exposed end.