"efficiency concerns" is a correct and usable phrase in written English.
It can be used to refer to the worries that arise due to a lack of efficiency. For example: "We have to be mindful of efficiency concerns in order to maximize our productivity."
The energy efficiency concerns the building envelope design, the use of efficient HVAC systems, adoption of renewable energy on-site.
Kleiner Perkins has a green ventures fund with nearly $1 billion invested in renewable energy and efficiency concerns.
A separation of Microsoft's Operating Systems and Applications Businesses does not raise the efficiency concerns that a division of Microsoft's operating system business might entail.
Ever since the rise of the "law and economics" movement, conservatives like Roberts have elevated efficiency concerns to a potentially decisive role.
But environmental groups waging nationwide campaigns against S.U.V.'s because of safety and fuel efficiency concerns said none approached the scope or scale of the California proposal.
Scholars of this stream view institutional rules, norms, and structures not as inherently rational or dictated by efficiency concerns but instead as culturally constructed.
The connector's geometry was conceived aiming at low cost, easy execution, high resistance, and efficiency concerning slipping and uplift.
To visually explain the distance measurement, let us consider the ratio (OA)/ OA′) in Fig. 1 that indicates the magnitude of unified efficiency concerning DMU {A}.
In addition to this excellent physical selectivity the biological efficiency concerning cell killing increases towards the end of the carbon ions' range.
The design goals of such a system essentially include not only security but also communication efficiency concerning the distribution of the session key.
Also, due to the limitation on power supply, we involved cooperative transmission for energy efficiency concern, which is also connected to the system security performance indirectly, as pointed out in [2].
