The size distribution and concentration of the nanoparticles in the solution were assessed using an optical particle-size analyzer SALD-71000, Shimadzu, Kyoto, Japan).
Using an optical fiber particle concentration measuring system, an extensive study was carried out of voidage profiles in a circulating fluidized bed riser of square cross-section.
Mabrouk et al. [9] studied the axial and radial profiles of the solids holdup using an optical fiber probe and radioactive particle tracking (RPT) technique.
Experimental investigation on the local mixing behavior of liquid-phase impinging jets in static mixers is carried out by using an optical laser induced fluorescence (LIF) and particle image velocimetry (PIV) setup.
The flow of the liquid driven by the pumps was characterized by monitoring the motion of particle tracers using an optical microscope.
Using an optical microscope, they found 72 dark particles among 3,500 cells and then used a powerful electron microscope to examine the shape of some of the particles.
Polarizabilities of the suspended particles were observed using an optical microscope under externally applied electric field strength.
The particle number concentrations were measured using an optical counter with four size intervals between 0.3 and 5.0 μm.
One group used the trick to send the state of a quantum particle of light, or photon, 6.2 kilometers across Calgary, Canada, using an optical fiber, while the other teleported the states of photons over 14.7 kilometers across Shanghai, China.
