The phrase "activation stage" is correct and usable in written English.
It can be used in contexts related to processes, systems, or events where a specific phase of activation occurs.
Example: "During the activation stage of the project, all team members must ensure their tasks are completed on time."
Alternatives: "activation phase" or "initiation stage".
The effects of the production variables such as temperature, heating rate, flow rate and holding time of carbonization stage and activation stage on the adsorption capacity of activated carbon were investigated.
The effect of different parameters was investigated in the pyrolysis stage (at 400 700 °C) and also activation stage (at 800 950 °C) of the preparation process for activated carbon.
Interestingly, our findings indicate that the actin-binding activity of MYH9 is altered in response to its acetylation status, which may further influence the ATPase activity of NM IIA, at least at the initial activation stage.
In this second activation stage, co-occurring thermal oxidation reactions lead to a less intense denitrogenation during CO2 activation than during steam activation.
In the activation stage with steam, a mathematical modeling approach was used and the effects of operating temperature and reaction time were studied.
The modification of the pore structure of the coconut shell was observed to begin at the drying stage and continued to the activation stage.
The scanning electron microscopy micrographs showed the shape conservation of the raw material after carbonization and activation stages.
Lymphocytes and memory CD8+ T cells at different activation stages show distinct metabolic signatures, and metabolic programming is necessary for T-cell development (O'Sullivan et al., 2014).
Though there are many related literatures, the changes of membrane surface nanostructures and adhesion property of T lymphocytes at different activation stages have not been reported yet.
Because this expression profile did not fully recapitulate the previously reported activation stages of monocytes, we proposed that the newly generated monocytes represented a unique and distinct state of activation.
Since the existence of quiescent and activation stages of earthquakes was reported (Sobolev 1995), an alternative statistical method called the region-time-length (RTL) algorithm was developed to investigate such stages of seismicity (Sobolev and Tyupkin 1997, 1999).
