"total flux" refers to the overall amount or quantity of something flowing or moving. It could be used to describe the total amount of particles, energy, or information passing through a specific space or object. Full definition
So the Bessel beam can scan a cell with the same total flux as the light spots used in confocal microscopy, but that flux is distributed among the seven beams and the cell isn't flooded with excess light; thus, the cell isn't damaged nearly as quickly. (scientificamerican.com)
The whole study of acupuncture, and the median lines of conduction woven through out the body is the result the study by those physically able to sense the EMF and coupling points on the skin surface, and at the same time understand the process of maintenance of the balance, phase, and polarity of total flux due to the whole continuum of life. (wattsupwiththat.com)