We provide the first experimental demonstration of optical transmission characteristics of a W1 photonic crystal waveguide in silicon on sapphire at mid infrared wavelength of 3.43 μm. Devices are studied as a function of lattice constant to tune the photonic stop band across the single wavelength of the source laser. The shift in the transmission profile as a function of temperature and refrac...

The loss minimization is a major role in Power System (PS) research. Transmission line losses in a PS can be reduced by Var compensation. After the establishment of power markets with transmission open access, the significance and use of Flexible AC Transmission Systems (FACTS) devices for manipulating line power flows to relieve congestion and maximize the overall grid operation have been incr...

Stable discrete compactons in interconnected three-line waveguide arrays are found in linear and nonlinear limits in conservative and in parity-time (PT)-symmetric models. The compactons result from the interference of the fields in the two lines of waveguides ensuring that the third (middle) line caries no energy. PT-symmetric compactons require not only the presence of gain and losses in the ...

Although improving the power-supply power factor (PF) can offer significant and necessary reductions in distribution losses, it is usually assumed that adding an active power-factor correction (PFC) stage will reduce the supply’s internal efficiency. It doesn’t have to be this way. This topic shows that several new system architectures are possible that can minimize system losses, accommodate a...

The biological effects of expression of mutant ras at different stages of human uroepithelial cell (HUC) tumorigenesis were tested after transfection of EJ/ras into nonestablished HUC and three isogeneic cell lines representing different steps in HUC transformation in vitro. Transfection with EJ/ras failed to immortalize diploid HUC and also failed to cause tumorigenic conversion of a near-dipl...

The design presented here mainly focuses on implementation of a broadband Wilkinson balun using composite right/left-handed (CRLH) transmission line. This has its components, namely Wilkinson power divider (WPD), microstrip phase shift line and CRLH unit cell along with interdigital capacitor, which forms base of the unit cell. The designing and implementation of WPD, CRLH unit cell and Interdi...