The phrase "a defined length of" is correct and usable in written English.
It can be used when specifying a particular measurement or duration in various contexts, such as in technical writing or descriptions.
Example: "The cable must be cut to a defined length of two meters to ensure proper installation."
Alternatives: "a specified length of" or "a fixed length of".
In this assay, purified substrate and enzyme are incubated in a detergent-containing buffer at 37°C for a defined length of time, typically 8 hours or overnight.
In group 4 (ischemic buttons), there is a defined length of parietal peritoneum where the buttons are placed.
Once these baseline measurements have been made, an inflatable cuff (with a defined length of 10 cm) is placed around the proximal third of the arm and a 300 mmHg occlusive pressure is applied for 5 minutes.
The six studies have received ethics approval and funding for a defined length of time, however, in most cases, interviewees reported that biological samples will be stored "indefinitely", or "forever".
Furthermore, in order to make such assays quantitative the radioactively labeled nucleotide is usually supplied at the initiation stage and is incorporated into a defined length of RNA (essentially an end-labeling).
A single iteration of the simulation of a non-discretized genome operated by defining an array of bases, accumulating reads of a defined length onto that array, and computing the size of the largest contiguous region of occupied bases.
The challenge is to engineer CGTases that only permit the binding of glucan chains of a defined length at the donor subsites prior to covalent glycosyl-intermediate formation and CD formation.
Dermatan sulfate degradation is modelled in RECON 1 by the degradation of a glycoseaminoglycan chain of a defined length.
The length difference seems to be due to a heterogeneous set of longer fragments, and not to the presence of a large population of a defined length.
Secondly, many chimeric sequences may have been removed because of the strict requirement for proper sequence tag and primer sequences on the left and right ends, and because of a requirement for long overlapping segments of a defined length.
The concept that variation in a suitable and defined length of DNA sequence may be used as a bar code for species identification is becoming increasingly appreciated [ 13, 14].
