The phrase "functional principle" is correct and usable in written English.
You can use it when you are referring to a basic governing rule or law that affects the way a system functions or operates. For example, "The functional principle behind the system is to minimize energy usage."
Finally, at the core of Hindu mystical thought is the functional principle that knowing is being.
Furthermore, this functional principle is reflected in the intrinsic organization of related motor systems.
Common coding is a functional principle that underlies the mirror neuron paradigm.
This switch from one functional principle to another between visual and motor cortical areas highlights a specific difference in potential coding strategies for input vs. output operations in cortical circuits.
This paper thus introduces the functional principle of electrically tunable lenses, setup arrangement for 3D laser microprocessing, computational simulation of system parameters and comparison with experimental results.
Two important items determine the requirements to a fuel cell system: the functional principle of the chosen fuel cell type and the intended applications of the system.
Their designs, based on the functional principles of engineering, were meant to embody the spirit of the industrial age.
We use comparative biophysical principles to infer functional principles of brain architecture.
Cushman's research aims to organize the astonishing complexity of moral judgment around basic functional principles.
We also consider exceptional cases of neocortical morphology as a means of testing putative functional principles and developmental mechanisms.
They further imply that face neurons are anatomically grouped according to well-defined functional principles, such as perceptual similarity.
