The phrase "concepts employed" is correct and usable in written English.
It is often used to refer to ideas or principles that are applied or used in a particular context or situation. Example: In his essay, the author explores the various concepts employed by postmodernists to challenge traditional modes of thinking.
Principles of physical science, the procedures and concepts employed by those who study the inorganic world.
Vortex control concepts employed for slender and nonslender delta wings were reviewed.
The concepts employed, both chemical and engineering, are described, and these include dual redox promoters and double-bed catalysts.
We focus on reactor design concepts employed to couple the heat requirements of methane reforming process with concentrated solar power.
Outcome 2: Introduce students to the basic methods and concepts employed in statistics to estimate the parameters of models, make decisions, and to describe uncertainty.
And after working with the Mets' coaching staff for a time, he embraced some of the concepts employed by Valentine, such as holding the runner while in motion, faking back to the bag.
Current design concepts employ both silicon and germanium layers to provide an energy range from 60 keV to >1 MeV.
Still further definitions are possible when we widen the range of relevant concepts, employing notions such as responsibility, being in the clear, and blameworthiness.
These developments triggered the introduction of elemental labelling concepts employing low abundant metals with lower ionization potentials.
Engaging students in difficult abstract concepts is a common problem in upper-division science lecture courses, particularly when the concepts employ mathematical equations (Pepper et al., 2012).
The Iridium concept employed a constellation of 66 satellites orbiting in six planes around Earth.
