The phrase "a small proportion of time" is correct and usable in written English.
It can be used when discussing the amount of time something takes relative to a larger timeframe or context.
Example: "The project will require a small proportion of time compared to the overall duration of the initiative."
Alternatives: "a limited amount of time" or "a minor fraction of time".
Conventional design of chiller plant is typically based on the peak cooling loads of buildings, while the cooling load reaches its peak level for only a small proportion of time in a year.
Conventional designs of chiller plants are typically based on the peak cooling loads of buildings, while only a small proportion of time in a year the cooling load of a building is at its peak level.
Conventional design of chilled water systems is typically based on the peak cooling loads of buildings, while the cooling load reaches its peak level for only a small proportion of time in a year.
The difficulty of experimental investigation of these mechanisms arises because KorA or KorB alone would only be bound to the DNA for a small proportion of time.
The other affinities are less important because the DNA is only in unoccupied or partly occupied states for a small proportion of time.
Small intestinal passage occurred mainly during very fast movements (>15 cm pr. min) accounting only for a small proportion of time recorded.
Compared with 5th graders, 1st graders attempted entry proportionately more, were alone more, joined smaller groups, and sustained interaction with groups a smaller proportion of time.
Longer durations of adherence states permit reversion of resistance, leading to a smaller proportion of time spent in the resistant state.
We found that during recess as a whole (which includes time spent eating lunch) (Study One), British Pakistani girls spent a smaller proportion of time in MVPA and in VPA than White British girls, and that when observed in the playground (Study Two) British Pakistani girls spent a smaller proportion of their time being very active and playing playground games.
The motivation for this precondition is the fact that classes that only existed for a small proportion of the time frame considered in the analysis do not present a considerable history of defects to qualify their use in predictions.
It could also mean that they need to work a little less hard, freeing up a small proportion of their time for mental health-promoting social and educational contact.
