Introduction: Some evidence demonstrates endogenous inhibitory pathways of pain involved in the interphase (phase between early and later phase) of the formalin test. We previously showed that swimming stress modulates the pain-related behaviors during the interphase of the formalin test. In this study, we evaluated the role of the endogenous opioid system in modulating nociceptive responses of...

In this paper, a new six-phase pole-changing induction motor drive is proposed to extend the constant-power operating range for electric vehicle application. The double Fourier series is newly employed to analyze the spectra of the motor phase voltage and current. Consequently, the harmonic expression of the inverter dc-link current can be derived. In order to reduce the dc-link harmonics, a ne...

New control circuits and algorithms are frequently proposed to control the impedance (Z) source inverter in efficient way with added benefits. As a result, several modified control techniques have been proposed in recent years. Although these techniques are clearly superior to the simple boost control method which was initially proposed along with the Z-source inverter (ZSI), little or conf...

The paper presents a drive system consists of single-phase boost rectifier, space vector pulse width modulation (SVPWM) inverter, and three-phase induction motor. The single-phase boost rectifier is used to obtain near unity power factor and to reduce the harmonic distortion in the main supply. The SVPWM inverter is used to offer 15% increase in the output voltage and low output harmonic distor...

Introduction 1 Background 1 Digital Communication Systems 2 Baseband Signal Representation 2 Line Codes 3 Passband Signal Representation 3 Constellation Diagrams 4 Generation of Coherent PSK Signals 4 Representation of BPSK 4 Generation of BPSK 5 Representation and Generation of QPSK 5 M-ary PSK 7 Demodulation of Coherent PSK Signals 8 Spectral Characteristics of PSK Signals 9 Error Performance...

Continuous phase modulation (CPM) systems for noncoherent coded transmission are proposed and analyzed. Specifically, the application of a feedback–free modulator is regarded. For demodulation, a receiver structure which requires only two or three linear filters is considered. For decoding, noncoherent sequence estimation (NSE) with Viterbi decoding and per–survivor processing is applied. Notew...

OF THE DISSERTATION Constant Envelope OFDM Phase Modulation by Steve C. Thompson Doctor of Philosophy in Electrical Engineering (Communications Theory and Systems) University of California San Diego, 2005 Professor James R. Zeidler, Chair Professor John G. Proakis, Co-Chair Orthogonal frequency division multiplexing (OFDM) is a popular modulation technique for wireless digital communications. I...