The phrase "a group of controller" is not correct in English.
It should be "a group of controllers." You can use it when referring to multiple individuals who control or manage something, such as a team of controllers in a business or technical context.
Example: "The company has assembled a group of controllers to oversee the financial operations."
Alternatives: "a team of controllers" or "a panel of controllers."
Once you taste the small rush of riding for free, you want to do it again, and once you experience a near-miss, where you manage a daredevil escape through the closing doors just as you spot a group of controllers boarding, you feel like an invincible outlaw superhero.
This paper presents the design of a hierarchical control system consisting of a model based centralized supervisory controller and a group of embedded controllers for a set of integrated biological reactors, which is a part of NASA's advanced regenerative wastewater treatment system.
Or a group of air traffic controllers.
Within days a group of air traffic controllers had organized themselves in opposition.
A group of air-traffic controllers, their wives, and kids, we carry signs emblazoned with the logo of PATCO, the Professional Air Traffic Controllers Organization, and chant a medley of protest slogans most of us are learning for the first time.
Based on the estimation, a group of model predictive controllers are designed to compensate the fault effects for each component of the wind turbine.
This architecture relies on a machine consciousness approach – Global Workspace Theory – in order to use competition and broadcast, allowing a group of local traffic controllers to interact, resulting in a better group performance.
Tertiary control, in the context of this paper, refers to the control layer that transcends the boundaries of a single microgrid, and hence supervises a group of microgrid central controllers (MGCC).
In agreement with this, a recent study found only low levels of antiviral NK cell activity together with a low frequency of KIR3DS1 in a group of rare HIV-1 controller patients [45].
