| INAA | instrumental neutron activation analysis |
|---|---|
| LDF | laser Doppler flux, laser Doppler fluxometry; limit dilution factor |
| NAA | N-acetyl aspartate; naphthaleneacetic acid; neutral amino acid; neutron activation analysis; neutrop... |
| NAF | nafcillin; National Amputation Foundation; National Ataxia Foundation; net acid flux |
| PBNA | partial body neutron activation |
| toroidal flux | <radiobiology> Magnetic field flux in the toroidal direction. See: magnetic fields. (09 Oct 1997) |
|---|---|
| unidirectional flux | The flux of a substance from one surface of a boundary layer or membrane to the other, disregarding any counterbalancing flux in the other direction, as measured by tracer technique. (05 Mar 2000) |
| flux | <radiobiology> The total amount of a quantity passing through a given surface per unit time. Typical quantities include (magnetic) field lines, particles, heat, energy, mass of fluid, etc. Common usage in plasma physics is for flux by itself to mean magnetic field flux, unless specified otherwise. (09 Oct 1997) |
| flux density | <radiobiology> Total amount of a quantity passing through a unit surface area in unit time See: flux. (09 Oct 1997) |
| flux, light | <microscopy> Sometimes called luminous flux, the visible portion of the radiant energy emitted by a light source. It is measured in lumens per solid angle. In electrical engineering, it is analogous to the lines of force in a magnetic field, spoken of as magnetic flux. (05 Aug 1998) |
| flux ratio | The ratio of the two unidirectional fluxes through a particular boundary layer or membrane. (05 Mar 2000) |
| luminous flux | The quantity of light emitted from a point source in a given time; its unit is the lumen. (05 Mar 2000) |