The phrase "are maintained for a" is correct and usable in written English.
It can be used in contexts where you are discussing the ongoing upkeep or preservation of something for a specific purpose or duration.
Example: "The records are maintained for a period of five years to ensure compliance with regulations."
Alternatives: "are kept for a" or "are preserved for a".
The diffusion flame leads to lower values for the maximum flux, but high fluxes are maintained for a longer time.
The aim of comparing the results obtained in both stages is to realize whether the performances obtained during the designing stage are maintained for a data set never processed before (testing data set) or not.
Previously known as the 'Football Foundation', the organisation which has overseen £1bn of spending on facilities since 2000, (and which will continue to deliver the funding), this investment guarantees that the current annual donations by the FA (£12m), Premier League (£12m), and Government (£10m) are maintained for a further three years from next year.
Several hundred sheep are maintained for a few days inside and outside the slaughterhouse before having their throats slit and being bled outside.
Moreover, treatment results in feedback groups are maintained for a much longer time [ 24] and less treatments are failing when clinicians receive feedback [ 25].
2) To determine whether habits are formed faster (3 months), are stronger at program completion (12 months), and are maintained for a longer period of time after program completion (24 months) in the enriched versus the standard GLB.
In these circumstances, the committee believes that policy accommodation can be maintained for a considerable period.
But, he added: "It's important that other sanctions are maintained and the pressure is maintained for a comprehensive and final settlement on the Iranian nuclear issue".
The liturgical dance in a rudimentary form was maintained for a long time in Christianity, as has been the procession.
In its recent meetings, the rate-setting committee said that low interest rates "can be maintained for a considerable period".
"[For] People who are or will be pregnant, the status quo is clearly going to be maintained for a period of time.
