The phrase "attain a substantial" is correct and usable in written English.
It can be used when discussing the achievement of a significant amount or degree of something, often in contexts like goals, results, or improvements.
Example: "The team worked hard to attain a substantial increase in sales over the last quarter."
Alternatives: "achieve a significant" or "reach a considerable".
These fields affect the charge carrier density in a surface region which in the case of nanostructured solids may attain a substantial fraction of the total volume.
These results strongly indicate that patients initiating cART in the acute phase of infection may attain a substantial virological benefit from early intervention.
The longer period required to attain a substantial level biomass in the field was due to a long period of summer drought at the beginning of the field experiment.
Nevertheless, for the ranges in which we actually simulated data (i.e., N ≤ 20,000 and P ≤ 500,000) RSR is able to attain a substantial R when N ≈ P and RR is able to considerably increase the R.
Therefore, it is necessary to consider the composition of mineral nutrients for the yeast during alcoholic fermentation in order to avoid an unnecessary increase in production costs without attaining a substantial improvement in process efficiency.
It is certainly legitimate for American and European negotiators within the 5+1 framework to demand that Iran give all the guarantees necessary to attain a result that is both substantial and credible.
Alternatively, the current may attain a maximum followed by a usually substantial decrease to low values.
With the help of our predesigned feature-based decision tree and a connective markers checklist, the annotators attain a 73% consistency with the reference standard annotation and substantial agreement by Cohen's kappa coefficient for middle-level labeling.
Negotiations resulted in General Electric acquiring a substantial interest in FBO Sarnoff had apparently already conceived of a plan for the company to attain a central position in the film industry, maximizing Photophone revenue.
In most situations, the use of substantial prior information significantly increases the accuracy level and considerably reduces the required number of failures to attain a specified degree of accuracy.
Other pieces attain a degree of profundity.
