OkCupid’s Mr Yagan argues that the size of the fee that most paid sites charge is not big enough to act as an effective filter.

The most effective measure of diesel particulate matter (PM) post-processing is the diesel particulate filter (DPF) technology, and the key of DPF lies in its regeneration.

Morphological filtration is a new nonlinear filtration technology. It is most effective to (filter) pulse noise in the processing of gray images.