"extend its applicability" is correct and usable in written English.
You could use it in a sentence such as: "The research team wanted to extend its applicability to more real-world scenarios."
Although perturbation theory has been rigorously developed over the past four decades in order to extend its applicability to estimate higher order variations, engineering applications have primarily focused on first-order perturbation theory only.
In this respect, we plan to further analyze approach limitations and extend its applicability to other architectural styles.
Modifications to the original algorithm and constraint handling techniques are described and integrated to extend its applicability.
The Oroskar and Turian (1980) model is limited to Newtonian rheology, and therefore, adjustments must be made to extend its applicability to non-Newtonian rheology.
The proposed diagram is a modification of Piper diagram (Piper 1953) with a view to extend its applicability in representing water analysis in the possible simplest way.
In this work, a previously investigated single-column mathematical model was modified to extend its applicability for protein oxidative refolding/aggregation predictions in SMB-SEC.
The present formulation, however, describes ionic strength through the inclusion of explicit ions, which considerably extends its applicability and validity range.
The imperfection parameter curves are substituted into the European column curve formulation, leaving the original column curve formulation unaffected but extending its applicability to the out-of-plane buckling response of roller bent arches.
