This implies that at low concentration of H3PO4 (1.5 mol/L) and minimum time of activation (50 min), desirable activated carbon for efficient methylene blue removal capacity (64.66 mg/g) can be achieved.
On applying the adsorption capacity data on the central composite design model, a quadratic model was suggested to explain the effect of operating parameters such as time of activation, temperature of activation, and activating agent concentration.
At the minimum time of activation, when we increased the activating agent concentration, initially the adsorption capacity of the prepared activated carbon increased and reached to a maximum at middle concentration and was falling with the further rise of concentration.
Individual cells activate apoptosis in a step-like manner; however the time of activation differs.
MMPs are regulated precisely during synthesis and secretion, at the time of activation of the pro-enzyme and/or by localisation, clearance and inhibition of the active enzyme (Ra and Parks, 2007).
A range of potential adsorbents were thus prepared by varying the temperature and time of activation.
The combination of these phenomena at the time of activation produces a reduction of the required electrical energy with respect to other devices, and also enables fluid movement.
It is not surprising, then, that network position does not account for time of activation as it does for cascading influence (the diffusion of messages is, for the most part, endogenous, depending on the network structure).
The actual chronological time of activation changes across same-threshold actors (see SI, Fig. S2); this variation is predictable given that actors react to different local networks, both in size and composition.
In the absence of information about the landslide time of activation, the end of the triggering event has been identified using two criteria: the rainfall peak intensity and the last registration of the day.
Users with moderate thresholds who are susceptible to bursts act as the critical mass that makes the movement grow from a minority of early participants to the vast majority of users: without them, late participants (the majority of users that made the movement explode) would not have joined in (Fig. 3B). Figure 3: Thresholds, recruitment bursts, and time of activation.
