"a length equal to" is correct and usable in written English.
It is typically used when comparing or describing measurements or distances. Here is an example: - "The rope needs to be cut to a length equal to the width of the room." - "The garden hose is designed to reach a length equal to 50 feet." - "The bridge has a span of a length equal to three school buses placed end to end."
The red ssDNA strand has a length equal to the one used for the construction of the F-duplex in a. Base-pairing with the two shorter blue ssDNA strands results in a gapped G-duplex.
A through thickness crack is shown to occur when a surface crack has grown to a length equal to about 40% of the circumference of the weld toe in the chord.
For example, to measure the volume of a sphere, he imagined a balance beam, one of whose arms is a diameter of the sphere with the fulcrum at one endpoint of this diameter and the other arm an extension of the diameter to the other side of the fulcrum by a length equal to the diameter.
In a long-favoured application of beam theory to the design of a ship's hull, the ship is assumed to be supported by a quasi-steady wave (i.e., not moving with respect to the ship) of a length equal to the length of the ship and one-twentieth of this length in height.
For example, any acute angle (figured as the angle between one side and the diagonal of a rectangle) can be trisected by taking a length equal to twice the diagonal and moving it about until it comes to be inserted between two other sides of the rectangle.
Buckling of longitudinal reinforcement in reinforced concrete (RC) columns or walls is commonly seen with a length equal to the spacing between stirrups (local buckling), but experimental observations have shown that the length of buckling can span a larger length, deforming several stirrups within the buckling length (global buckling).
A first-order finite impulse response (FIR) filter with a window length equal to the time taken to acquire a single volume a box car function was used to model the hemodynamic response.
The standing wave will consist of equally spaced nodes and antinodes with a loop length equal to one-half wavelength in air.
At the frequency of a preexisting resonance mode, nanoregions of standing ferroelectric phonons develop with a coherence length equal to one wavelength and the PNR size.
It reaches its value maximal for a crack length equal to 2ρent/5.
The UHPFRC layer resists to punching shear by out-of-plane bending over a limited length equal to its height.
