Photovoltaic systems have been widely deployed in recent times to meet the increased electricity demand as an environmental-friendly energy source. The major challenge for integrating photovoltaic systems in power systems is the unpredictability of the solar power generated. In this paper, we analyze the impact of having access to weather information for solar power generation prediction and fi...

We show that the nonlinearity in periodically poled photovoltaic photorefractives can be solely of the cross-phase-modulation type. The effects of self-phase modulation and asymmetric energy exchange, which exist in homogeneously poled photovoltaic photorefractives, can be considerably suppressed by the periodic poling. Finally, we demonstrate numerically that periodically poled photovoltaic ph...

In this paper we analysis different three MPPT techniques in photovoltaic system. These MPPT techniques are used to increase the efficiency of the photovoltaic system.

GOALS Low-power systems often find the power cost of floating-point hardware prohibitively expensive. This research explores ways of reducing floating-point power consumption by minimizing the bitwidth representation of floating-point data. Analysis of several floating point programs that manipulate low-resolution human sensory data shows that these programs suffer no loss of accuracy even with...

The purpose of the present study was to develop an optimized gastric floating drug delivery system (GFDDS) containing domperidone as a model drug. Box-Behnken design was employed in formulating the GFDDS with three polymers: hydroxypropyl methylcellulose K4M (HPMC K4M) (X1), Carbopol 934P (X2) and sodium alginate (X3), as independent variables. Floating lag time (FLT), total floating time (TFT)...

Six diesel-degrading bacterial strains were isolated from oil-polluted sites located in central Taiwan. The floating activity of the isolates in an oil-supplemented liquid medium was monitored. Cell-surface hydrophobicity as well as cell-free and cell-residue emulsification activities were also investigated. Three isolates, identified as Gordonia alkanivorans CC-JG 39, Rhodococcus erythropolis ...

The underlying principles of photovoltaic energy conversion are brie&y reviewed, with particular reference to solar application. Although most photovoltaic converters to date have been based on semiconductor p–n junctions, more general structures and materials are feasible. The fundamental requirements for photovoltaic conversion are discussed, as is a generic approach for analysing the limitin...

in the current study, floating dosage form containing acyclovir was developed to increase its oral bioavailability. effervescent floating tablets containing 200 mg acyclovir were prepared by direct compression method with three different rate controlling polymers including hydroxypropyl methylcellulose k4m, carbapol 934, and polyvinylpyrrolidone. optimized formulation showed good floating prope...

Today many argue that there appears to be an epidemic case of “fear of floating”. Some have further claimed that credible inflation targeting – a popular regime choice today – and fear of floating are identical regimes. This paper takes a different view. We modify Calvo and Reinhart’s (2002) approach to analyze the behavior of exchange rates, reserves, interest rates and inflation across 88 exc...

Charge regulators of the batteries are one of the parts most critical in stand-alone photovoltaic systems. The economic cost of the complete installation, for a long period of time, depends on their correct operation. This document presents a Fuzzy Logic Controller for the charge regulation in stand-alone photovoltaic systems. The optimisation, in energy management, obtained with this controlle...