High energy photons can be generated via inverse Compton scattering (ICS) in the collision between energetic electrons and intense laser pulse. The development of plasma accelerators promises compact all-optical gamma-ray sources by colliding from wakefield to its high-power driving pulse reflected a mirror. However, law optical focusing hinders realization both high photon yield monochromatic ...

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great effect of three way catalytic convertor (twc) performance on oxygen sensor output voltage has made the sensor (located after catalyst) as the main signal in almost all today’s twc monitoring algorithms. in this paper output voltage of nonlinear oxygen sensor is estimated using a nonlinear autoregressive with exogenous inputs (narx) model. the estimation uses ecu calculated exhaust gas flo...

Microgrids need control strategies to achieve maximum performance. An appropriate strategy should have high performance in unbalanced conditions addition normal conditions. Today, the use of microgrids, with a variety power sources, including solar, wind, diesel, energy storage sources increase capability distribution grid has made significant progress. However, controlling and managing their e...

A single multi-plane light convertor (MPLC) is applied to simultaneously mitigate turbulence-induced crosstalk and demultiplex two orbital angular momentum (OAM) multiplexed channels for a free-space optical link. Comprised of six programmable phase planes, the MPLC placed at receiver side turbulence mitigation channel demultiplexing. Propagating through cascaded coaxial turbulence-distorted OA...

In this study, two types of multilevel convertors, cascaded multilevel inverter with separate DC sources and diode clamped multilevel inverter with common DC source are modeled and compared in the case of feeding of an induction motor. Here, SHEPWM technique is used as the switching strategy. Also a new variable torque feedback control on modulation index is presented, to preserve the induction...

In this paper we describe the statistical machine transliteration system of Amirkabir University of Technology, developed for NEWS 2011 shared task. This year we participated in English to Persian language pair. We use three systems for transliteration: the first system is a maximum entropy model with a new proposed alignment algorithm. The second system is Sequitur g2p tool, an open source gra...

A new high speed Nd:YAG Thomson scattering AD Convertor (HYADC) that can directly convert the detected scattered light signal into a digital signal is under development. The HYADC is expected to improve a signal to noise ratio of the Nd:YAG Thomson scattering measurement. The data storage of the HYADC which is required for the direct conversion of whole plasma discharge is drastically reduced b...

Spectrum efficient data transmission is of key interest for high capacity optical communication systems considering the limited available bandwidth. Transmission of the high speed signal with higher-order modulation formats within the Nyquist bandwidth using coherent detection brings attractive performance advantages. However, high speed Nyquist signal generation with high order modulation form...