The phrase "a maximum useful" is not correct in standard written English.
It seems to be an incomplete expression and lacks clarity without additional context.
Example: "The device operates at a maximum useful capacity of 500 watts."
Alternatives: "the most effective" or "the highest beneficial".
Light microscopes have a usual magnification factor of 1000 × and a maximum useful magnification of approximately 2000 ×.
The double-focussing instrument routinely operates at a mass resolving power of 40,000 with a maximum useful MRP of ∼80,000.
There is a maximum useful time for iontophoresis as if there is a finite reservoir of antibiotic, it is possible to drive all of the available ions through the bone and out into the external solution, reducing the amount retained in the bone.
A nearly-orthogonal sampling of design space is proposed with good space filling properties to extract maximum useful information about system behavior using much lower number of trial designs.
The maximum useful magnification of an image is usually set at ∼1000 times.
By using experimental designs based on statistical principles, researchers can extract, from a minimum number of experiments, a maximum of useful information about the system under study.
We aim at the recovery of a compound model "image + uncertainties" that best relates to the observations and contains a maximum of useful information from the initial data set.
One is not considering equilibrium but an irreversible process in which free energy is being created continuously and, in the steady state, at a constant rate, δ G d t = ∑ (maximum useful work per cell) × rate of reaction, the rate of reaction being the rate of cell growth (or biosynthesis).
This source of noise ultimately limits the maximum useful signal amplification that can be provided by a receiver.
In a situation like this, the first mover gets 1/4 of the maximum useful exclusivity period simply by being first to market.
Let δ G be the maximum useful chemical work that the growth (biosynthesis) of a phytoplankton cell can perform.
