BACKGROUND Women of childbearing age represent a growing proportion of people living with HIV. Preventing pregnancy is important in HIV-infected women receiving efavirenz as part of their antiretroviral therapy. METHODS The effects of coadministration of efavirenz (600 mg once daily) on the pharmacokinetics (PK) of the active components (ethinyl estradiol [EE] and 17-deacetyl norgestimate [NG...

Induction generators which may be operated in grid or self-excited mode, are found to be successful machines for wind energy conversion. Out of these two selfexcited mode is gaining importance due to its ability to convert the wind energy into electrical energy for large variations in operating speed. However it has been found that these machine exhibits a poor voltage regulation. Steady-state ...

The doubly fed induction machine (DFIM)-based DC voltage generator is equipped with a stator-connected diode rectifier. six-pulse rectifier as nonlinear circuit introduces harmonics in the stator and rotor current distorts voltage, well flux. This causes electromagnetic torque oscillations instantaneous power components oscillations. adversely impact mechanical parts of drive-train p component ...

This paper presents a methodology for the classification of power system voltage stability, the trajectory of which to instability is monotonic, using an interior point method based support vector machine (IPMSVM). The SVM based voltage stability classifier can provide real-time stability identification only using the local measurement data, without the topological information conventionally used.

mgo nanopartticels (np-mgo) in average size between 30—130 nm were prepared by sonochemistry method. some phenols have been converted to ortho-hydroxybezaldehyd by ortho-formylation using mgo nanoparticles and (ch2o)n in xylene and subsequently treated with aqueous nh2oh.hcl, affording the corresponding aldoxime in a one-pot procedure. moreover, this one-pot process, with two transformations, o...

In this paper, an adaptive hysteresis band current controller is proposed for active power filter to eliminate harmonics and to compensate the reactive power of three-phase rectifier. The adaptive hysteresis band current controller, proposed by Bose [An adaptive hysteresis band current control technique of a voltage feed PWM inverter for machine drive system, IEEE Trans. Ind. Electron. 37 (5) (...

Open-ended winding induction machines fed from standard two-level Voltage Source Inverters (VSI) provide an attractive arrangement for AC drives. An alternative approach is to use a dual output Indirect Matrix Converter (IMC). It is well known that the IMC provides fully bidirectional power flow operation, with small input size filter requirements. Whilst a standard IMC consists of an AC-DC mat...

It is very important, to optimize of clean electrical energy by employing of variable Speed pumped storage power plant (VSPSP). Variable speed machines are used extensively in wind power plants and pumped storage power plants. Therefore, the advantages of this technology are including: stability, reliability, fast dynamic responses, frequency control and high efficiency of power system. By usin...