The phrase "a certain level of capacity" is correct and usable in written English.
It can be used when discussing the extent or degree of ability, skill, or resources available for a particular task or function.
Example: "In order to meet the project deadlines, we need to ensure that our team has a certain level of capacity to handle the workload."
Alternatives: "a specific degree of capacity" or "a particular amount of capacity".
The proposed model of the problem minimizes the inventory and shortage costs, production costs, fixed cost of the transportation vehicles of each plant at each period, costs of locating centers with a certain level of capacity, operational costs at centers at each period, and the sum of maximum time at each period.
It is acknowledged here that doing capacity assessments requires a certain level of capacity.
These frameworks share a number of commonalities, including the identification of organizational "core competencies" that each require a certain level of capacity in order for an organization to be effective.
Capacity payments, when adequately designed, can without doubt serve as an effective means of achieving a certain level of guaranteed capacity.
Many rights and privileges are thought to require a certain level of cognitive capacity, e.g., the right to vote or contract (Wikler 1979).
It is important that soldiers train, improve and maintain a certain level of physical capacity for any tasks they may need to perform.
It is found that up to a certain level of PV capacity addition, the total costs of operating the generators and the grid begin to outstrip the benefits for the power sector.
Outdoor mobility requires a certain level of functional capacity along with the ability to concentrate and react on environmental stimuli [ 6].
Importantly, meta-d′/d′ is a relative measure: given a certain level of processing capacity (d′), meta-d′/d′ quantifies the extent to which a metacognitively optimal observer is aware of their performance.
This is likely to be due, in part, to the fact that each NGO needs a certain level of fixed capacity in key areas, such as support and supervision for outreach workers.
Importantly, meta- d'/ d' is a relative measure: given a certain level of processing capacity (d'), a meta- d'/ d' value of 1 is metacognitively ideal according to signal detection theory, whereas meta- d'/ d' < 1 indicates that metacognition is lower than expected based on this model.
