Photochromic fibers have attracted great attention due to their wide use in areas of military camouflage, safety warnings, anti-counterfeiting, entertainment, etc.
The paper concerns micro scale flow in a membrane consisted of aramid nanofibers and cellulose nanofibers via layer-by-layer technique. Surface morphology, surface wettability, and filtration performance are experimentally studied to elucidate the basic micro-fluid properties. The effect of the thickness on filtration efficiency is theoretically analyzed, and the paper concludes that the membrane is extremely effect to remove nanoparticles.
A simple structure for a Fresnel phase zone plate is proposed using the techniques of polymer‐network stabilized liquid crystals. This kind of structure can give a high value of diffraction efficiency and the diffraction light intensities can be controlled electrically. The detail fabrication process and experimental results will be given.
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