Purpose. Investigate the effect of complex microalloying with nitrogen, titanium and aluminum on structure properties cast steels at elevated temperatures. Methodology. Methods optical microscopy were used for metallographic analysis microstructure steels. The mechanical room temperatures determined static tension, crease impact bending. Results. technology carbonitride strengthening silicon-ma...

establishment of hospital accreditation programs is increasingly growing across numerous developing nations. such initiatives aim to improve quality of care. however, such establishments, mainly incentivized by successful and famous accreditation plans in developed countries, usually suffer from lack of necessary arrangements which, in turn, result in undesired consequences. indeed, the first p...

Many computing techniques are used to evaluate Power Quality parameters, each showing specific advantages and disadvantages. This paper presents an improvement of Curve Fitting Algorithm (CFA) having good accuracy in the estimation of the signal’s power quality parameters.

In this paper, the Renewable energy sources, which have been expected to be a promising alternative energy source, can bring new challenges when it is connected to the power grid. However, the generated power from wind energy source is always fluctuating due to environmental condition. In the same way wind power injection into the electrical grid affects the power quality due to the fluctuation...

précis: this debate article highlights some questions from critics of qualitative research. planning for proper design, philosophical background, researcher as a research instrument in the study, trustworthiness and application of findings are main debates in this field. one of the issues that have been received little attention is report of qualitative inquiry. a qualified report can answer th...

This paper focuses on the implementation of a three-phase four wire current-controlled Voltage Source Inverter (CC-VSI) as both PV energy extraction and power quality improvement. For power quality improvement, the CC-VSI works as a grid current-controller shunt active power filter. Then, the PV array supported by a Look-up Table type of a MPPT controller is coupled to the DC bus of the CC-VSI....