The effect of the last two variables was explained respectively in terms of the reaction mechanism of n-paraffins on bifuctional catalyst and the effect of the vapour liquid equilibrium (VLE) on apparent conversion rate and isomer content of products.
The effect of variables (H2O2∕COD (1 3.25), H2O2∕Fe (2–10), pH (2 5) and reaction time (30 240)) involved in the treatment process was studied on two responses (COD and ametryn removal efficiency) using the response surface methodology.
CD9 and COX2 remained independently prognostic when accounting for the effect of other variables on multivariate analysis (P=0.009 and 0.007, respectively).
In the present design, effect of individual variables, i.e. pH (5.0 9.0), temperature (32 42 °C) and time (5.0 9.0 days) were studied on responses, i.e. protein, Pb II) precipitation and COD sequestration.
A factorial experimental design was used to study and quantify the effect of the variables (formic acid concentration (80 90%), hydrogen peroxide concentration (0.2 0.4%), temperature of the first stage (60 80 °C), and treatment time of the second stage (60 120 min)) on the main parameters of fractionation: pulp yield, remaining lignin and total polysaccharides in pulp.
There were consistent positive influences of winter temperatures, weaker and more variable positive effects of spring and summer temperatures, and highly variable precipitation effects that ranged from positive to negative.
The results showed consistent positive influences of winter temperatures on human WNV risk, weaker and more variable positive effects of spring and summer temperatures, and highly variable precipitation effects that ranged from positive to negative.
Next, the effect of independent variables, including d-dimer levels, on the 2 endpoints, namely, metastasis and total survival, was analyzed by using survival analysis model.
The interactive effect of different variables, i.e. pH (5.0 9.0), temperature (32 42 °C) and time (5 9 days) on responses, protein concentration (mg/mL), COD removal and bioprecipitation of Pb II) with SRB consortium were studied by Box Behnken design matrix and results are described in Table 3.
