The phrase "a revised equation for" is correct and usable in written English.
It can be used when introducing an updated or modified mathematical equation that serves a specific purpose or application.
Example: "In this paper, we present a revised equation for calculating the efficiency of solar panels under varying conditions."
Alternatives: "an updated formula for" or "a modified equation for".
Using the %renal uptake of Tc-99m DTPA and Cr-51 EDTA GFR, a revised equation for GFR was established through linear regression analysis.
We calculated the eGFR using a revised equation for the Japanese population: eGFR (mL/min/1.73 m) = 194 × serum creatinine−1.094 × age−0.287 × 0.739 (if female) [ 11].
Renal function was calculated using the estimated glomerular filtration rate (eGFR) with a revised equation for the Japanese population, as follows: eGFR (ml/min/1.73 m) = 194 × (serum creatinine)− 1.094 × (age)− 0.287 × 0.739 (for women) (Matsuo et al., 2009).
GFR measurement using Tc-99m DTPA scintigraphy could be significantly improved by a revised equation derived from the comparison with Cr-51 EDTA GFR.
We recommend the use of the LoI method with the improved factor for conversion of OM to C content, or where bulk density is known the Warren equation for calculating accurate C density values across intact and logged forests on Indonesian peats, and our revised equation for oil palm sites.
We found estimated glomerular filtration rate (eGFR; mL/min/1.73 m) with the following revised equation for eGFR of serum Cr for Japanese subjects: eGFR (mL/min/1.73 m) = 194 × serum Cr−1.094 × age−0.287 (×0.739); values in the parentheses were applied for females (11).
The revised equation for improved GFR [GFR mL/min) = (%renal uptake × 11.7773) − 0.7354] was derived from the imaging parameter (%renal uptake of Tc-99m DTPA) which had been originally adopted by Gates [GFR (mL/min) = (%renal uptake × 9.8127) – 6.82519] [ 21, 22].
The results of the foregoing analyses indicated that there was little point in proceeding with the plan to re-run the ANOVA comparing the mean profile discrepancy indices for the summation and bipolar models using indices based on the revised equation for each model.
On this view, the revised equation can no longer be claimed to represent a pure unidimensional model.
The revised equation provides consistent predictions of the required length of a grate inlet on a sloping street.
Equation (2) shows the revised equation.
