Passive droplet generation for an aqueous two-phase system (ATPS) was performed with a fracture-based variable microchannel.

The operation of a leaky zirconia oxygen pump-gauge is discussed in which the pump was driven so as to generate a sinusoidal EMF at the gauge of predetermined frequency and amplitude. A theoretical equation for the current is derived and checked for conformance with sensor characteristics. In general there was good agreement with theory; there was some discrepancy with variation in total gas pressure. It is shown that the output current lo at zero gauge EMF was independent of the degree of leakage while the current I, at the gauge EMF maximum was directly proportional to the degree of leakage, so providing a direct and independent measure of leakage with aging.

In this paper, we have investigated cryogenic temperature response of long-period fiber gratings (LPFGs) inscribed on standard photosensitive single-mode fibers without any polymeric coatings. The resonance wavelength of the fabricated LPFG, which was ~1530.778 nm at room temperature (296 K), was monitored under various temperatures ranging from 77 K to 296 K. The temperature sensitivity of the resonance wavelength was measured as ~402.4 pm/K, and the adjusted R-square value of the linear fit of the temperature response curve was evaluated as 0.98144.

No abstract