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We report the observation of bound states formed by an induced vector soliton and a scalar soliton, the first reported case involving a vector soliton, generated from a weakly birefringent, carbon-nanotube mode-locked fiber laser.
The phenomenon of unbalanced grid voltage would add a lot of harmonics to AC current and DC voltage of Voltage Source Rectifier (VSR), and reduce the power factor or even damage the rectifier unit. In the paper, a developed direct power control (DPC) strategy for PWM rectifier under unbalanced grid voltage conditions is proposed to solve the problems. First of all, the instantaneous power could be...
In conventional direct torque control (DTC) strategy, the inverter switching frequency is not fixed, torque ripple and total current harmonic distortion is high. In order to overcome these problems, improved DTC using space vector pulse width modulation strategy (SVPWM-DTC) is proposed in this paper. Switching table is replaced by SVPWM module to enable the fixed switching frequency. On the other...
Surface Plasmon Resonance has been developed into a widely-used methodology for various biosensing applications. For the most popular angular-interrogation SPR system, a convergent light beam and a photo diode array are used, where the photo diode array with a large amount of pixels is necessary for high performance, and unavoidable trivial vibration between sensing unit and photo diode array will...
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