The phrase "a smooth decline" is correct and usable in written English.
You can use it to refer to a decline that is gradual and without abrupt changes. For example: "The stocks experienced a smooth decline over the course of the quarter."
This non-compact nanopyramid structure prevents a smooth decline of neff at the air-Si interface, creating a discontinuity of neff (solid line in Figure 5b).
The upper portion of the pyramid exhibited a smooth decline with increasing population age.
This phenomenon is exclusive to the GIF neuron and it is not observed in the IF neuron, where the distribution shows a peak at zero and a smooth decline for higher values of the discriminability (Fig. 6D).
By plotting the progression of the cumulative transcriptional state for the burn dataset (Figure 7) we see a simple trend, where a maximum is reached at an intermediate number of clusters, and then there is a smooth decline after this point has been reached.
Thereafter, a smooth decline was observed in mean, absolute GTVs during treatment.
After the tide reversed, a smooth decline in concentration accompanied the incoming flood.
Therefore, the random noise is smoothed out by averaging over both wavelengths and offset directions, resulting in a smooth declining curve of the average surface intensity.
Here we take a smooth declining curve at the lowest envelope of the data as being the continuum, which is the sum of real smooth brightness and true random noise, since the random noise has an additive effect.
Note that the dip at 5.3 arcsec in our polarimetric data is simply our motivation to seek a planet around 62 AU. Figure 1 shows the geometric mean of the four surface intensities and a smooth declining curve, "continuum", as a function of radial distance from the central star.
"If you compare the number of galaxies that we see to the abundance of objects once the Universe had expanded a little bit, we describe a very smooth decline in the number of objects as we go back into cosmic history," he told reporters.
There is a fairly smooth decline from @5 through @8, reaching a minimum of about 300 people alive after 100 years.
