"gentle increase" is a perfectly acceptable phrase in written English.
It can be used to describe a gradual rise in something. For example, "The temperature has experienced a gentle increase over the past few days."
"A gentle increase in temperature is fine but extreme weather events completely stuffs farming: just look at last year.
The Bank believes the economy has the potential to grow at about 1.5% a year but that demand will slightly exceed that limit in the coming years in the absence of a gentle increase in interest rates.
Meanwhile, the emergence of a new characteristic redshifted signal at 357 nm with gradual increment in the absorption intensity on gentle increase in the ferric ion concentration and continuous shifting in the ligand absorption bands after Fe3+ addition ascribed the conformational changes in the ligand structure upon Fe3+ binding.
A gentle increase in the peak current was observed with an increase in the square root of the scan rate at the APS-Au NPs electrode as displayed in Fig. 4b.
With an increase in the scan rate, a gentle increase in the peak current was observed at the APS-Au NPs electrode, as presented in the Fig. 6b inset.
The effect of scan rate was explored where a gentle increase in peak current was observed at the APS-Au NPs electrode for the electrocatalytic oxidation of hydrazine as shown in Fig. 2b.
A gentle increasing catalyst loading profile homogenizes the current density at relatively higher air stoichiometries, while a steeper profile is suited better for lower air stoichiometries.
There was gentle porosity increase at 300 µm voxel, which tends to flatten up and increase sharply after 400 µm voxel, and a slight increase after 400 µm voxel length is also noticed in Fig. 21a.
We applied gentle, gradually increasing manual traction to reduce dislocation and fracture dislocation under image intensification.
Moreover, the study area of Asilah is characterized by a low surface elevation (between 0 and 78 m) with gentle slopes, increasing its susceptibility to tsunami inundation.
That April, Mrs. John Wood sang "Dixie" in a John Brougham burlesque called Po-ca-hon-tas, or The Gentle Savage, increasing the song's popularity in New Orleans.
