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Browsing by Author "Merzouk, Imad"

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    Continuous Nonlinear Model Predictive Current Control of PWM AC/DC Rectifier
    (جامعة الوادي - university of el oued, 2021-12-22) Merzouk, Imad; Bessous, Noureddine; Rezaoui, ,Mohamed Mounir
    The present work applies a nonlinear model predictive current control (NLMPCC) approach to ac/dc pulse width modulation (PWM) rectifier. A cascade structure is used to regulate Dc-link voltage and grid currents. The outer loop objective is to regulate the Dc-link voltage to the desired value, providing the level of the required active power to be used with the reactive power to calculate the referencing current for the inner loop. In the inner loop, the proposed approach is considered. After that, the nonlinear model of the converter is developed, based on continuous minimization of predicted tracking errors, the voltage at the terminal of the converter is deduced. After that, a PWM block is used to generate gate signals. Simulation results are performed to illustrate the efficiency of the proposed control law
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    Economic Perspective in the Production of Copper Nanowire using Amino Acids as Capping Agent
    (جامعة الوادي - university of el oued, 2019-12-25) Rezaoui, Mohamed Mounir; Bessous, Noureddine; Merzouk, Imad
    The purpose of this study is to evaluate the economic feasibility of making copper nanowire using amino acids as a capping agent. The evaluation was conducted from two perspectives, namely engineering analysis and economic evaluation using parameters such as gross profit margin, payback period, breakeven points, and net present value. An economic evaluation was also carried out comparing the use of amino acids Glycine, Lysine, Proline, and Alanine to find out which amino acids were more profitable in the production of copper nanowire. Furthermore, the evaluation is done by estimating the ideal situation and several other state assumptions such as changes in raw material prices, labor costs, and also income tax. From the results of this study, Glycine is known as the most profitable amino acid to be used in this process. In addition, by using Glycine as an ideal condition, based on the results of the evaluation of all parameters, this project is classified as prospective to do. Although further studies must be carried out to develop this project, this study can be the basis for developing new methods of making copper nanowire on a large scale.

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