In order to determine the concentration of a physical property of a solution, there needs to be a significant difference in that property when quantity is changed. In addition, every concentration must have a unique measurable value. Therefore, when selecting a measuring device for concentration determination, it is important to know the behaviour of the solution.
Download the full application note to see an example on how the DPRn is used in determining the concentration of electrolyte solutions.
Fusion inches closer as ITER completes magnet system
I believe the purpose of ITER isn't to make usable power, it is a research project which will be used to design the first generation of actual...