The phrase "a noticeable transformation" is correct and usable in written English.
You can use it to describe a change that is significant enough to be easily observed or recognized.
Example: "After months of hard work, there was a noticeable transformation in her confidence and skills."
Alternatives: "a significant change" or "an evident shift."
Together, these accounts portrayed a teacher who had undergone a noticeable transformation.
In addition, the variation of hydrogenated complexes induced by sequential implantation and annealing can be evidently identified from the Raman spectra, showing a noticeable transformation of H-related defect complexes from VH3 to Si(100):H bonding configuration due to the emergence of blisters and craters.
In SEM/BEC images we observed a noticeable transformation of the potassium feldspar covered by a thin layer of a new phase (containing K Al Si and Pb) created during firing (Fig. 14).
The preparation for the Olympics created a noticeable transformation of the city including infrastructure and urban improvements that made Barcelona a more attractive and livable place.
Conrad Green, executive producer of "Dancing With the Stars," said Ms. Burke underwent a noticeable personal transformation beginning in her first season.
The most noticeable transformation is on offense, where this team finally has a real NFL quarterback under center.
The most noticeable transformation has been in the area around the station.
It clearly reveals that as these variables change due to contacts with western-based modernity, the settlements have undergone noticeable transformation.
In both cases, noticeable transformation of DBT into sulfone was not observed on the TLC plate.
One of the most noticeable transformations under Francis has been in the space of social media.
It was a noticeable and calculated transformation and if it seemed a bit silly and over-the-top at first, it has served her well over time.
