The phrase "are required to decrease" is correct and usable in written English.
It can be used in contexts where a decrease is mandated or necessary, often in formal or technical writing.
Example: "In order to meet environmental standards, emissions are required to decrease by 20% over the next five years."
Alternatives: "must be reduced" or "are mandated to lower".
Due to the tremendous amount of hardware resources available in SoCs, design tools and methodologies are required to decrease the design complexity.
The system was very efficient in water use for fish production but alternative solutions for warming the water and fine-tuned pumping setup are required to decrease energy needs.
These last ten years, several research groups have concentrated their efforts on the development of such sophisticated tools: approximations are required to decrease the CPU time, closely checking that the corresponding loss in accuracy remains acceptable.
The belt is composed of charge-neutralized ethyl phosphorothioate (EP) groups which are required to decrease cell viability.
Therefore, novel treatment strategies are required to decrease AKI incidence, preserve kidney function, and improve clinical outcomes in patients undergoing cardiac surgery.
Excited-state interactions between the Pchlide molecule and active site residues are required to decrease the local electron density across the C17-C18 doubondbond, which facilitates the transfer of the negatively charged hydride ion from NADPH.
If the scholarship check is issued to both the student and to the college, as they usually are, Ms. McDonnell explained, she is required to decrease the aid package.
"In order to increase homeownership, Fannie and Freddie were required to decrease their standards," said Peter Wallison, a fellow at the American Enterprise Institute and perhaps the country's leading critic of the G.S.E.'s.
Process improvements were required to decrease the cycle time.
Also, good clinical sense is required to decrease AE during IHT [1].
Some slow EM cycles is required to decrease the coupling loss deposition before coil testing.
