The phrase "part of expertise" is correct and usable in written English.
You can use it in a sentence to indicate an area of expertise of a particular person or group. For example, "Marketing is an essential part of expertise for any business striving for success."
Furthermore, it is a necessary condition for using technical capacity to contribute to quality of life goals, since researchers themselves have part of the expertise, but not all the expertise, needed to identify the complex links between research and these outcomes.
Part of the expertise of HCPs was the ability to enable parents to reveal and work with their own expertise around their child.
And security was part of that expertise.
The multiple ways of representing a molecule and the different levels of uncertainty regarding this representation have been a central part of this expertise.
You need to tell your students--and demonstrate--that a large part of your expertise rests in your ability to learn new things efficiently and well.
You also need to know your own limits: Are there some parts of the paper that you would like to emulate but are not part of your expertise and might become "accessible" through collaborations?
With regard to content, we may discuss to what extent the use of computers (in terms of ICT Literacy) must be regarded as another dimension of competence, and to what extent it is part of commercial expertise.
"Avast makes products that allow devices to perform at their best increasing storage space is an example of this and security is a big part of this expertise," a spokesperson explained.
We outsource work packages that are not part of our expertise and are less know-how intensive.
And my claim for the role of designers is that often they are natural allies in that difficult task – that part of their great expertise is simultaneously to engage different experts.
