'careful integration' is a perfectly correct and usable phrase in written English.
You can use it when referring to the process of introducing something new into an existing system in a meticulous and considered way. For example, "We need to ensure a careful integration of the new software into our existing network."
Careful integration of the SOFC with supporting components is necessary for overall system performance.
Careful integration of other observations, such as magnetotelluric data, has potential to resolve some of these ambiguities74.
The careful integration of these processes allows neurons to maintain homeostasis in the face of constant change.
A careful integration of the wall pressure reveals that the vertical structure as a whole experiences pulsating horizontal impact forces.
The residential and institutional projects of Andō Tadao (born 1941) are marked by stark, natural materials and a careful integration of building with nature.
His productions, which were obsessively concerned with the exact reproduction of reality, aimed at natural dialogue and the careful integration of character, incident, and environment.
Careful energy integration will likely be needed to make this viable.
In the current study, the analysis is extended to include reformation of two fuels (diesel and natural gas) onboard the locomotive and analyses of system efficiency, fuel consumption, CO2 emission, and NOx emission that can be attained through careful thermal integration of the reformer unit.
The 1999 acquisition of ASDA, then the U.K.'s third-largest grocer, was followed by two and a half years of careful technology integration and employee training.
Combine Instagram's mobile appeal with some careful Facebook integration (without annoying existing users too much), and Mark Zuckerberg could have made a very nifty move.
This result implies that incorporating a new data type into DTI prediction is non-trivial and requires careful data integration.
