The phrase "around the optimal value" is correct and usable in written English.
It can be used when discussing a range or proximity to an ideal or best value in various contexts, such as statistics, optimization, or performance metrics.
Example: "The results indicate that the system operates most efficiently around the optimal value of 75 degrees Celsius."
Alternatives: "near the ideal value" or "close to the best value."
The way the absorption coefficient is reduced when variations of the bias flow velocity around the optimal value are considered is then investigated.
A bigger P c can improve the search capability in the space, while a smaller P c can ensure the continuity of the search around the optimal value.
It is readily apparent that the coefficient oscillates around the optimal value, with the amplitude of oscillations diminishing as c rises, according to the given logarithmic function (11).
Over a range from 0.005 to 0.04, around the optimal value of 0.025, the correlation value decreases less than 10%.
According to the present fit, the intercept b values were all in a reasonable interval around the optimal value in most conditions.
Even when there is a unique parameter value, if the objective function is flat around the optimal value, then the data carry little information on the parameter of interest.
A wide range of suboptimal values around the optimal values may cause a slight error in terms of estimation accuracy.
To demonstrate the robustness of the method deliberate small changes of flow rate, content of acetonitrile and column temperature were made around the optimal values.
Indeed, if the step is too large, the values of the potential will oscillate around the optimal values.
In addition, the gradient step δ grad has to be small enough so that the values of the potential do not oscillate around the optimal values, as in the case of the fixed step gradient.
It can be seen from the plots that the algorithm is quite sensitive to this parameter; however, in case of both data sets, the optimal value is around R seed = 0.05 (marked with a vertical dashed line), and this value has been used in our experiments.
