The phrase "at a defined interval" is correct and usable in written English.
It can be used when referring to a specific, regular time period between events or actions.
Example: "The system will perform backups at a defined interval to ensure data integrity."
Alternatives: "at regular intervals" or "at set intervals."
It may therefore be preferable to consider these early deaths as having occurred at some unspecified point during a defined interval, assuming only that the subject was alive at the beginning of the interval and dead at the end of the interval.
In that method, we can precisely study and control substrate influx across the BBB since the perfusion medium is infused with a known concentration of glucose, at a controlled infusion rate, for a defined interval of time, without any systemic interference as seen with single intra-arterial injection in intact animals.
Samples for microbiological analyses were taken from the oropharynx and trachea at inclusion and at defined intervals thereafter.
This is also partially observed for the Hu1 and Hu2 cases: the lifetime assumed by Huenges (2010) is at the edge of our defined interval (20 years).
We wrote a set of two Python scripts, OutParser.py, and OutParserLI.py to parse the mapping output files from R/qtl and to generate a map of locus-specific P-values at regular, user defined intervals on a physical scale.
At a defined time interval, 100 μl of the sample was withdrawn and replaced with the same volume of fresh medium.
At a defined time interval, about 3 mL of solution was extracted from the reactors and then centrifuged to remove catalysts before analysis.
SDDP experiments consisted in pairing presynaptic stimulus and MSN postsynaptic brief subthreshold depolarization (30 ms duration) at a defined time interval, which was varied between experiments.
Firstly same volume of capsules was added into well-stirred glucose solution at a temperature of 25°C, and samples of 50 μL were collected at a defined time interval.
Proactive mechanisms are typically time series based, where a sequence of events at defined intervals are analysed to find patterns that can be used to forecast future values.
