The phrase "are gradually improved" is not correct in standard written English.
It should be "are being gradually improved" to indicate a continuous action in the present.
Example: "The processes in our department are being gradually improved to enhance efficiency and productivity."
Alternatives: "are being enhanced" or "are being refined."
With the increase of the feedback control gains, the active aeroelastic flutter properties for the lower order modes of the supersonic plate are gradually improved.
Although the conductivity of Mo-doped sample is slightly decreased, the thermal expansion compatibility and hydrogen oxidation reaction (HOR) activity are gradually improved.
It is proposed that these polymeric structures possess double-degenerated charge transitions, which contribute to the hyperpolarizability in an additive fashion, and that the coupled oscillators are gradually improved, which lead to the increase of the first hyperpolarizability.
A common computational model for such research is the genetic algorithm, in which simple lists of symbols, representing the genes needed to define an artificial creature (or a more obviously useful structure, such as an aircraft wing), are gradually improved using a process analogous to natural selection.
The effective free distance and/or multiplicity of the code are gradually improved as more complex codes are sought.
Besides, the contact area and contact quality between the textured structure and PEDOT PSS film are gradually improved as spin-coating rate increases.
We are gradually improving.
Life remains complicated for the family left at home but, with the help of the charity, things are gradually improving.
But in-vehicle voice recognition systems are gradually improving, as demonstrated by the new version of Chevrolet's MyLink system.
After initial delays of up to nine hours for arriving Americans, the inspection procedures at Brazilian airports and seaports are gradually improving.
When she went to medical school, only 8percentt of the enrollment was female; now it's 30percentt, so things are gradually improving.
