The phrase "a slow diffusion of" is correct and usable in written English.
It can be used to describe a gradual spread or distribution of something, such as ideas, substances, or phenomena.
Example: "The study focused on a slow diffusion of new technologies in rural areas, highlighting the challenges faced by local communities."
Alternatives: "a gradual spread of" or "a leisurely distribution of".
The dual first-order release model illustrated two distinct release rates: an initial rapid release followed by a slow diffusion of PGN from the dispersion systems.
In the case of a slow diffusion of the monomer to the electrode the growing film may be irreversibly overoxidised or/and crosslinked.
The results showed that in stagnant water there was a slow diffusion of the nitrobenzene from the pool leading to higher concentrations of the chemical deeper in the water column.
At 1050 °C, the CNTs were uniformly coated which increased their diameters from 20 60 nm to 400 500 nm and closed pores were formed as a result of the fast formation and a slow diffusion of carbonaceous nuclei during the latter stages of deposition.
Indeed, in this work, these lines correspond to the existence of the external diffusion process (external surface adsorption), followed by intra-particle diffusion and finally to a slow diffusion of the adsorbate to the micropores of the adsorbent (Yang et al. 2012).
The combustion of the organic anion at higher temperatures may be probably due to slow kinetics of decomposition of the sulphonate groups and may confirm the hypothesis of a slow diffusion of SO2 in the oxide matrix already formed at such temperatures (Lakraimi et al. 2006).
The difference in chemical capacitance indicates a slower diffusion of electrons in the (0 0 1) anatase material, but also a higher electron lifetime compared to (1 0 1) anatase material.
Ti-B and, to a lower degree, B-doping entailed a slower diffusion of base-layer and substrate species through the κ-Al2O3 bilayer, thus retarding the formation of segregated species on the sample surface.
The algorithm takes into account realistic diffusion properties, with a rapid diffusion of C atoms by interstitial jumps and a slower diffusion of Fe and Nb atoms by vacancy jumps.
Relative to the release of CaCl2 P (designed to estimate P in soil solution and subsurface flow), two processes appeared to occur simultaneously, a rapid release of P from soil immediately in contact with the solution and a slower diffusion of P from inside soil particles.
The simulation involves realistic diffusion mechanisms, with a rapid diffusion of C atoms by interstitial jumps and a slower diffusion of Fe and Nb atoms by vacancy jumps; a simple model of the GB which reproduces the equilibrium segregation properties of Nb and C; and a point defect source which drives the vacancy concentration towards its equilibrium value.
