The phrase "a general expression that" is correct and usable in written English.
You can use it when introducing a statement or definition that summarizes a broader concept or idea.
Example: "The term 'sustainability' is a general expression that refers to the ability to maintain ecological balance."
Alternatives: "a broad term that" or "a common phrase that".
Here, we seek a general expression that can be used to diagnose the energy flux associated with linear shallow water waves at all latitudes from model output.
Practical rationality is a general expression that covers experiences, knowledge, perceptions, and judgments that are shared among teachers of similar courses of study, such as algebra, geometry, or calculus.
It turns out that the covariance matrix corresponding to the "no equal variances" case in Eq. (A.24) of Appendix A is a general expression that is always true and is equivalent to setting the three rotation axes and corresponding angular variances equal to the eigenvectors and corresponding eigenvalues, respectively, of the symmetric positive semi-definite matrix ACaAT in Eq. (35).
To calculate the energy band gap of a semiconductor, there is a general expression that relates the absorption coefficient to the energy band gap, which is given as (αhν) m versus (E − hν), where m is an integer or semi-integer, h is the Planck constant, hν is the energy of the electromagnetic radiation, and E is the energy of the involved quantum levels in the semiconductor [22, 23].
In this work, a new general expression that gives the Stress Intensity Factor (SIF) along the crack front of an elliptical crack in a rotating shaft in terms of the crack depth ratio, the crack aspect ratio, the relative position on the front and the angle of rotation has been developed for linear elastic materials.
The total kinetic energy obtained has an original general expression that is reduced either to Einstein's energy in the presence of no variable forcing frequency, or to the classical expression in the case of no relativist effects, and which validates the assumptions made on the metric.
In particular we define general expressions that can be used to compute resonant response functions which define the steady-state constant amplitude oscillatory response at the primary resonance and the associated harmonics.
Note that equation (15) is a general expression for CAR that, in the hypothesis H1, reduces to (11).
It is worth mentioning that (17) provides a general expression for τ(k) that allows it to vary smoothly along the iterations even within a single period (i.e., transient period or steady-state).
Then, we present an analytical investigation that leads to a general expression for the energy flux that can indicate the exact profile of the group velocity times wave energy for both equatorial and mid-latitude waves.
Austin (Chen and Lui 1987) proposed a general expression for the equivalent moment that gives the same effect at the mid-height of the column as given by Eq. (5).
