"increasing contribution" is a correct and usable phrase in written English.
It can be used to refer to someone or something making a greater effort, or increasing their involvement in something. For example, "The CEO is making an increasing contribution to the company's success."
Moments have an increasing contribution with increased frequency irrespective of excitation location.
The supply problem was lessened by China's increasing contribution to groundfish supply (FAO, 2007).
This leads to an increasing contribution of the tower costs to the total investment costs.
"In its many forms, design makes an increasing contribution to the cultural and economic life of contemporary society," says Noonan.
The National Theatre's annual report makes interesting reading, particularly for anyone interested in regional touring and the increasing contribution that NT Live makes to the National's coffers.
At even higher current densities an increasing contribution of water diffusion is observed: the cell impedance increases again.
An increasing contribution is coming from a retreat of the Greenland Ice Sheet, and part of this contribution is occurring as an iceberg flux.
Results show that an increasing contribution of viscosity to the hydrodynamic forces significantly alters the instability boundaries.
Meanwhile Greene King announced in a trading update that like for like sales at its managed pubs had risen 4.7% in the 51 weeks to 24 April, with an increasing contribution from food sales.
Existing correlations for external geometries predict a progressively increasing contribution of natural convection to heat transfer with respect to gravity (starting from zero gravity).
Animal models are making an increasing contribution to our understanding of the psychology and underlying neurobiology of behavioural inhibition and impulsivity.
