  We prove that the bounded derived category of coherent sheaves on a
quasicompact separated quasiexcellent scheme of finite dimension has a strong
generator in the sense of Bondal-Van den Bergh. This extends a recent result of
Neeman and is new even in the affine case. The main ingredient includes
Gabber's weak local uniformization theorem and the notions of boundedness and
descendability of a morphism of schemes.
