Upon reading the article, something that stood out was their theory (apparently empirically proven) that heat & particles contained in the field were not related with one another, and could be treated (confined) separately.
Given that, I wondered if there was some way of employing this understanding to enhance the heat retention in a DPF. For myself, I think not. I think the two reactors work too differently from one another, but I thought I’d bring it up anyway.
And, as you noted, it is an interesting article.
Pat