The phrase "are designed to decrease" is correct and usable in written English.
You can use it when describing the purpose of a product, system, or process that aims to reduce something, such as costs, risks, or negative impacts.
Example: "These new safety measures are designed to decrease the likelihood of accidents in the workplace."
Alternatives: "are intended to reduce" or "are meant to lower".
On the one hand, these measures are designed to decrease the prevalence and impact of knife-carrying children.
Many had aero helmets, which are designed to decrease air resistance, as well as aero wheels, which reduce the drag on your bike.
One of the algorithms is slow but provides optimal solutions, while the others are designed to decrease the run time.
The Feldon wafer procedure and the Bowers distal hemiresection procedure are designed to decrease force transmitted through the distal ulna.
Changing such behaviour has considerable potential for conserving energy and is an important target of environmental policies which are designed to decrease energy consumption.
In addition, two kinds of matching pair (MP) methods, internal adjustment MP and external adjustment MP, are designed to decrease the embedding changes.
His innovation, which embeds self-activating limestone-producing bacteria into building material, is designed to decrease the amount of new concrete produced and lower maintenance and repair costs for city officials, building owners and homeowners.
Gattex is designed to decrease their reliance on such lines, improving their quality of life and lowering their risk for life-threatening complications like infections.
Todd J. Zywicki, a senior scholar at the Mercatus Center at George Mason University, says that credit is the lifeblood of the economy, and that Dodd-Frank was designed to decrease access to credit.
Solid-backed acetabular components were designed to decrease this osteolysis.
This was designed to decrease the priority of GBR traffic that has already satisfied its target rate.
