I remember quite well Urutskoeva experiments in the early 2000. They was picked up by an Italian experimenter, Fabio Cardone that was a researcher to Italy National Center for Research (CNR). He evolved them into an experiment where he was cavitating a solution of thorium and that was supposedly showing an anomalous decay of the thorium itself due to the cavitating action. Both experiments suggested that the anomalous results (extra Hydrogen for Urutskoeva and Thorium decay for Cardone) was due to the action of LENR.Axil wrote:See:
Research of a Gas Phase under Electrical Explosion of the Titan Foil in Liquid
Leonid Irbekovich Urutskoeva et al.
The problem of those experiments is that they never scaled up.
Urutskoeva tried to scale up but the anomalous hydrogen production in % dropped as the total volume of hydrogen produced in the experiment increased (Hint! Hint!).
Cardone likewise was never able to increase the anomalous decay reaction of the Thorium, facing similar problems to Urutskoeva. He was removed from CNR few years later and ended up in an Italian military research center, where he was still unable to scale up his experimental results.
Several researchers pointed out to potential sources of error for both experiments in their original form, but I don't think that they was ever replicated fixing those potential error sources.
Not really, these experiments (as far as I can remember) was never successfully replicated by anyone else except the original authors. And because the original authors also failed to obtain any increase in the anomalous values when they tried to scale up the experiment, it is than highly possible that the anomalous results was indeed coming from one of the sources of error that other scientists indicated. That would be the logic theory that explains the original results.Axil wrote:I cite this work as an example of a clear, unambiguous, repeatable, replicated, and accepted test of a method that empirically shows there must be something there that needs a theory to explain the physical result.
It is now quite long time I don't hear anything from Urutskoeva and Cardone, probably another two lost souls in the LENR limbo.
Anyhow, there should be plenty of documentation about this on arxiv for the interested one.