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Search results for: frequency
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Year: 2009, Volume: 9, Issue: 3
... USA. babakabdi@ieee.org Abstract — Electro-mechanical batteries have important DC voltage to variable frequency, 3 phase voltage in the advantages as compared with chemical batteries, especially ... Transformer micro/nano satellites", IEEE Transaction on Applied Design: Inclusive of High-Frequency Effects", IEEE Transactions on Superconductivity, VOL. 13, NO. ...
Year: 2009, Volume: 9, Issue: 3
... Gheorghe Asachi Technical University of Iasi, Romania 2 Stefan cel Mare University of Suceava, Romania mistrate@ee.tuiasi.ro Abstract — The increased accuracy into the fault's detection power frequency component and the transients. and location makes it easier for maintenance, this being the In the case of widely used power frequency based reason to develop new ...
Year: 2009, Volume: 9, Issue: 3
... of crane movement are adjustable speed induction motor drives for gantry cranes. considered. In the first part of the paper, control topologies Modern solution considers application of frequency converters for multi-motor load sharing are presented. for all drives. Multi-motor drives are standard solutions in In the second part of the paper, specific application of ...
Year: 2009, Volume: 9, Issue: 3
... Hamming and Hann windows [6 ], [18], [10] multiply efficiency of the method is demonstrated in examples of the harmonics around the desired frequency ω by the set of experimental measurement of the combustion heat delivered by rocket propellants. Populations as small as of six readings, coefficients, depending on the ...
Year: 2009, Volume: 9, Issue: 3
... a virtual model and recognition of facial The log Gabor filters are known to provide excellent expression. These recognition tasks have focused on the simultaneous localization of spatial and frequency classification of emotional expressions [1 ], classification of information, however the dimensionality of the resulting complex mental states [2] or the automatic recognition of ...
Year: 2009, Volume: 9, Issue: 3
... simulation results, faults can be detected and signal. Wavelet technique analyzes signals in time and identified as soon as fault appears. In summary, if the system frequency domains and gets the results to describe the has a fault diagnosis structure, system dangerous situations can be avoided. character of the signals. The paper is ...
Year: 2009, Volume: 9, Issue: 3
... ,05 d L1CZ 2 d 0,10 in order for the phase currents iR, iS, iT to be practically sinusoidal (Z denotes the mains angular frequency), [7 – 9]. Considering that the currents iR, iS, iT are practically sinusoidal and have the amplitude I(1 ), ...
Year: 2009, Volume: 9, Issue: 3
... I. INTRODUCTION if the device is used as a micro – pump, i is a very low Actuators are used to transmit forces (or pressures, or frequency sinusoidal current. torques) and often represent an end component in an l l automation chain (for example in the control of pneumatic l z1 z1 l ...
Year: 2009, Volume: 9, Issue: 2
... and expressing ε and THD depending on ratio Figure 9. THD values depending on frequency of the MTD for k λ= I 0 I B, it follows ... [4] – [6]. On the other hand, for many radio-frequency applications, this trade-off between transconductance value and linearity can be avoided, if ...
Year: 2009, Volume: 9, Issue: 2
... paper investigates a novel approach for constructing a family of ISI-free pulses produced by improved II. STAIRCASE CHARACTERISTIC Nyquist filters with a transfer characteristic derived from an ideal staircase frequency characteristic using interpolation In a previous paper [9] a low-pass filter with ideal piece- with sine functions. They equal or outperform some recently wise rectangular ...
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