in this paper, reconfiguration problem of distribution network has been investigated toimprove reliability and reduce power loss by placement of renewable energy sources; i.e. solarcell and wind turbine. for this, four reliability indices are considered in objective function;which are as follows: system average interruption frequency index (saifi), system averageinterruption duration index (sai...

cu(in,ga)se2 thin films (cigs) on metallic substrate (titanium, molybdenum, aluminum, stainless steel) were prepared by a two-step selenization of co-evaporated metallic precursors in se-containing environment under n2 gas flow. structural properties of prepared thin film were studied. to characterize the optical quality and intrinsic defect nature low-temperature photoluminescence, were perfor...

In 1999, DARPA contracted L’Garde, Inc. to develop an ultra low-mass solar array for rapid deployment micro satellites. The results of that effort yielded a high performance design that was tested up to a flight demonstration and outperformed competing designs in power density (65.4 W/kg at 274 W) and stowed volume (0.04 cubic meters). However, this design lacked the ability to scale the power ...

The photovoltaic (PV) generator exhibits a nonlinear – characteristic and its maximum power (MP) point varies with solar insolation. In this paper, a feedforward MP-point tracking scheme is developed for the coupled-inductor interleaved-boost-converter-fed PV system using a fuzzy controller. The proposed converter has lower switch current stress and improved efficiency over the noncoupled conve...

Received Jan 10, 2018 Revised Mar 12, 2018 Accepted Mar 26, 2018 The use of solar photovoltaic (PV) system has grown significantly in Malaysia after Renewable Energy Act has been gazetted in 2011.The objective of this paper is to highlight the technical and economic analysis of solar PV DC system to generate enough energy for residential customer group that consumed 200 kWh per month so that th...

in recent year's renewable energy sources have become a useful alternative for the power generation. the power of photovoltaic is nonlinear function of its voltage and current. it is necessary to maintain the operation point of photovoltaic in order to get the maximum power point (mpp) in various solar intensity. fuzzy logic controller has advantage in handling non-linear system. maximum power ...

Background: Karyotype analysis has been the standard and reliable procedure for prenatal cytogenetic diagnosis since the 1970s. However, the major limitation remains requirement for cell culture, resulting in a delay of as much as 14 days to get the test results.CGH array technology has proven to be useful in detecting causative genomic imbalances or genetic mutations in as many as 15% of child...

A low-gain crossed-slot microstrip patch antenna integrated with the solar-array panel has been successfully developed for the Mars rover application at the frequency of 400 MHz. It achieved a very low mass of 0.5 kg and occupied very small real estate (6.5 percent) of the solar panel. The electrical and mechanical characteristics of several other omni-directional low-gain antennas also are dis...

 SUMMARY X. Pis a rare autosomal recessive genodermatosis characteriseJ by photophohia, severe solar sensitivity, cutaneous pigmentary changes, xerosis and early Jevdopment of mucocutaneous and ocular cancer particularly in sun exposeJ skin. Tumors whichinclude solar keratosis, cutaneous horn, keratoachanthoma, squamous and basal cell carcinoma, malignant melanoma and angioma may developeJ in...