I just tried to say that some "NAE " are excited by conduction then some others by radiations.
Up to you to find/imagine the most effective solution
That isn't what the paper is about - and it expressly talks about other effects that cannot be purely phonon based. They have referred to what they call a "memory effect" - which I think is probably a poor translation. They are talking about energy that seems to disappear from the molecular vibrations in one location - and then reappear as vibrations in another location a short time later. As a bulk effect it isn't really noticeable - but it is measurable on what they refer to as the mesoscopic scale (between molecular and macroscopic).
It's just something I've been looking at for non-LENR purposes - but it could be relevant to other liquid/sonic systems.