The phrase "a separate period" is correct and usable in written English.
It can be used to refer to a distinct timeframe or interval that is distinct from others.
Example: "The project will be divided into phases, with each phase having a separate period for evaluation."
Alternatives: "an individual timeframe" or "a distinct interval".
But the literature of the early Koryŏ is sufficiently distinctive that it can be considered of a separate period.
In the past, a separate period of time was set aside for candidates to decide whether to affiliate themselves with their FSILG or their dormitory.
A total of 190 subjects participated in the study and made product pricing decisions for three sets of thirty products each, each constituting a separate period.
A casein cornstarch-based diet was used in a separate period to determine basal endogenous N and AA losses to estimate standardized ileal digestibility (SID) of AA.
In the past, a separate period of time — a week before the vote — was set aside for candidates to decide whether to affiliate themselves with their Fraternities, Sororities, and Independent Living Groups or their dormitory.
Jennifer S. Christman, the executive director of the Picture House, said the event would represent the first major concert for the 91-year-old theater, a single-screen movie house that underwent a six-month renovation starting in September 2010 and a separate period of construction last summer.
The comment period on the delay ended March 17, but a separate comment period on issues raised by President Donald Trump is open until April 17.
The slight increase in the size of the residuals for a separate validation period was considered acceptable (NSL in the range 0.60 0.89 for daily flow and 0.10 0.74 for nitrate concentration, excluding one data set with limited validation data).
There is a separate registration period for this course.
It also helps to create the idea of a separate historical period, different from what came before and after.
One trial (Borrmann 2011 KEN (a)) is pending as we await data for a separate recruitment period from the trial authors.
