Apparently, many egg-laying (or oviparous) reptiles have a mechanism to retard or stop development in the oviduct once the early gastrula stage is attained.
When these two phenomena become equal, no further uptake of the solution takes place by the material and hence super-saturation stage is attained (Kim et al. 2014).
As shown in the lower right part of the diagram, the shape of the hypsometric curve varies in early geologic stages of development of the watershed, but once a steady state (mature stage) is attained, tends to vary little thereafter, despite lowering relief.
The pattern of successful change is typically conceptualised to be spiral, with relapses to earlier stages and re-cycling through the stages, typically occurring prior to final remission (if successful), or the long-term maintenance stage, is attained [ 15, 17- 19].
The mass transfer rate in the stages depends on the nature of both phase and sample systems: the highest values were achieved in experiments with acetic acid by using the octane/water biphasic system, where an equilibrium concentration distribution between stationary and mobile phases in the stages was attained.
In Season 1, these principal stages were attained at 10 DAA, 155 DAA and 270 DAA respectively.
It is clear from Fig. 4a that the biosorption of phenol and cyanide was fast at the initial stage and equilibrium was attained in 42 h for phenol and 40 h for cyanide, where 86.34 % phenol and 92.50 % cyanide was adsorbed.
In the same way, the adsorption of Zn metal increased rapidly as the agitation speed increased from 50 to 200 rpm and a stage of equilibrium was attained at this speed with 76.7 and 90.5% removal efficiencies in case of both natural and modified adsorbents, respectively.
From Fig. 8 it is clear that the sorption was fast initially and became slow at later stages till the equilibrium was attained.
