The phrase "also improve upon" is correct and usable in written English.
It can be used when discussing enhancements or advancements made to an existing idea, product, or process.
Example: "In addition to increasing efficiency, we aim to also improve upon the current design to enhance user experience."
Alternatives: "further enhance" or "build upon".
If you experienced something anywhere else (a great love affair, an unforgettable summer, a piece of fruit), we believe that we can not only duplicate it here, but also improve upon it.
These stability conditions also improve upon some existing results.
The viscoelastic behavior and the thermal resistance of the composites also improve upon addition of both treated and untreated CNCs.
This chapter reviews and proposes clinical trial design innovations that will hopefully not only accelerate the drug development process, but also improve upon its success rate.
We also improve upon the previous results by obtaining the estimates for a larger class of domains than what was considered in the literature.
With the Pixel 3, Google will also improve upon the Pixel 2's already excellent Portrait Mode, offering the ability to change the depth of field and the subject.
Activities of various enzymes (dehydrogenase, phosphatases and nitrogenase) and population of nitrifying bacteria and Azotobacter were also improved upon inoculation with AM-fungus besides improvement in the uptake of many nutrients except Na and K.
PES has also improved upon previous years in this regard and now offers smooth and succinct menus, a contrast to its old clunky layout.
Subsequently, the Navajo not only learned new weaving techniques and designs but in time also improved upon the acquired Pueblo methods, transferred the gender role of the weaver from male to female, and matured as far more sophisticated artisans.
Additionally, the model also improves upon the conventional model by calculating safe front and back gap dynamically based on speed and deceleration properties of leader and follower vehicles.
As such it also improves upon the computational efficiency of solving some existing lot-sizing problems which are important special cases of our model.
