Welcome to duijsens.com
We realize it is not easy to spell, pronounce, or even remember.
The <uij> combination is an old and obsolete way of writing <ui> in Dutch.
You will find it only in family names, or in old texts.
This is like saying the French "oeil" [œY] (which means "eye").
There is no English equivalent however.
You should pronounce a schwa [ə] (like "u" in "supply") followed by [Y] (like "y" in "yes").
And then, the ending is exactly the same as the word "sense" [sƐns], easy!
In short the pronounciation is [dəYsƐns].