Superparamagnetic single phase zinc ferrite nanoparticles have been prepared by coprecipitation method at 20 °C without any subsequent calcination. The composition, crystallite size, microstructure and magnetic properties of the prepared nanoparticles were investigated using X-ray diffraction (XRD), field emission scanning electron microscope (FESEM), transmission electron microscope (TEM)...

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Ecosystem of arid and semiarid regions of the world, much of the country lies in the sensitive and fragile environment Canvases are that factors in the extinction and destruction are easily destroyed in this paper, artificial neural networks (ANNs) are introduced to obtain improved regional low-flow estimates at ungauged sites. A multilayer perceptron (MLP) network is used to identify the funct...

The dynamic phasor (DP) method is a useful tool for developing simulation-efficient models suitable system-level analysis. In this paper, two DP of single-phase two-stage grid-connected photovoltaic (PV) system are proposed. the first model (DP-Full), PV array, capacitor, boost converter, DC-link, and MPPT (maximum power point tracking) control modeled. second (DP-Simp), DC-side simplified by a...