The phrase "more obvious effect" is correct and usable in written English.
You can use it to describe a situation where the effects of something are very noticeable. For example, "The increased taxes had a more obvious effect on the citizens' income."
Especially the smaller the fine particles diameter is, the more obvious effect the screen blockage is.
The acute medication had a more obvious effect and only had to be taken when needed.
However, the type II sinus tarsi implant design exhibited a more obvious effect than that of type I.
Given the material parameters and cavity dimensions, more obvious effect can be observed for the rubbery coating with a larger lattice constant and/or a thicker cover layer.
The compression speed has more obvious effect on the energy-absorption increment of magnesium tube than that of the aluminum tube.
If we put families with more children and with fewer children together, we can observe a more obvious effect of daughters' years of education on parents' life quality.
Moreover, with increasing dose of oMWCNTs, more NDs would be connected to oMWCNTs and brought into the organs, resulting in the more obvious effects of oMWCNTs on the distribution of NDs.
This included deliberately adding green fringing and drop out to scenes as well as more obvious effects such as lasers and matte paintings".
Our local guides pointed out some of the more obvious effects of the cyclone as we traveled in the back of trucks through the rain forest past small villages where many houses were in the process of being patched up and reconstructed.
With regard to LC3 conversion, eIF4E exerted more obvious effects than eIF2 α.
The conditioned media of adipose derived MSCs (AD-MSCs) stimulated the proliferation of human LoVo colorectal-cancer cells, and the replicative senescent MSCs had the more obvious effects in comparison to that of premature AD-MSCs.
