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Search results for: electromagnetic
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Year: 2014, Volume: 14, Number: 3
... on (a) the nature interaction, is selected as the optimization algorithm for this study. There are four fundamental interactions existing in the nature: gravitation, electromagnetic force, weak and strong nuclear forces. By taking the "law of gravitation" as the basis of the algorithm, the GSA method was developed. ...
102. The Peak Control Function and its Applications to Transmission Line Effects in Class D Amplifiers
Year: 2014, Volume: 14, Number: 3
... the voltage response functions. If not appropriately taken care of, these square wave. In this way, the current through the load will effects may lead to electromagnetic compatibility problems. be mainly composed of a sine wave, the unwanted The purpose of the paper is to develop the theory of the peak harmonics in the ...
Year: 2014, Volume: 14, Number: 2
... utilizing square 3 2 1.155 0.543 1.040 grid RFID reader antenna network. Journal of Electromagnetic Waves 4 2.5 1.553 1.001 1.184 and Applications," vol. 22, ... using error modeling via a polynomial approximation IV. CONCLUSION approach," Progress in Electromagnetics Research, vol. 102, pp. 49- 64, 2010. ...
Year: 2014, Volume: 14, Number: 2
... 24] are also used for Rated power 1.5kVA achievement of high power density. As regards the Rated phase voltage – Y connection 220 V excitation system, both electromagnetic type [18] for high Rated current (rectified value) 3.25 A power units and permanent magnets are used. The Number of poles 4 permanent magnets ...
Year: 2014, Volume: 14, Number: 2
... the shaft, f is the equivalent total friction coefficient and Tem is tip speed ratio, β is the pitch angle and V is the wind speed. the electromagnetic torque. The power coefficient Cp represents the aerodynamic In order to capture the optimal mechanical power, the efficiency of the wind turbine. It depends on the ...
Year: 2014, Volume: 14, Number: 1
... or sinusoidal waveform for BEMFs software package was used for the analysis. To obtain the waveforms of Back-ElectroMotive Forces (BEMFs), and acceptable waveform and value for electromagnetic electromagnetic and cogging torque for servomotor a program torque developed to the shaft (ripple and cogging torque in LUA scripting language (integrated into interactive shell of reduced ...
Year: 2014, Volume: 14, Number: 1
... in constructive solution. The optimization study applied the the design. minimal operating costs criterion, and it took into account the starting restrictive conditions. Thirteen variables regarding electromagnetic stresses and main constructive dimensions II. OPTIMAL DESIGN OF THREE-PHASE LOW POWER were considered. The operating costs of the optimized motor ASYNCHRONOUS MOTORS decreased with 25.6% ...
Year: 2014, Volume: 14, Number: 1
... individual segments of one graph section with major fluctuations in both bus utilization transmitted bit such as segment regarding propagation time and reference message transmissions. However, one of electromagnetic wave in the wiring, sampling instance, problem has arisen. When a timer register comparison value and transmitting instance, all of which are set in three ...
Year: 2014, Volume: 14, Number: 1
... in Electrical and Computer Engineering Volume 14, Number 1, 2014 Human Exposure to Electromagnetic Fields Produced by Distribution Electric Power Installations Marian COSTEA1, Nicolae GOLOVANOV1, Ioana ... [16] V.V. Lednev, "Possible mechanism for the influence of weak Bioelectromagnetics 28 (2 ), pp. 137 – 151, February 2007. ...
Year: 2014, Volume: 14, Number: 1
... . The change of these parameters developed for computing eddy currents in materials with influences on vector potential. It should be noted that the random magnetic properties. The electromagnetic field is subject of the design sensitivity analysis in mechanical formulated in terms of finite elements. The numerical solutions for deterministic as well as stochastic direct and inverse ...
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